From 21468a69ca2e7ff9a5c7ffc03c608a24f1412d64 Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Tue, 20 Mar 2012 17:44:34 -0400 Subject: [FIXME] Resurrect boards.cpp for F2 and F1. FIXME: - F1 support currently appears to be failing in start_c.c, for some unknown reason. This will need to get sorted out later. Add a new wirish namespace, and a sub-namespace wirish::priv::. Put a bunch of board setup routines in this namespace, and declare them in new wirish/boards_private.h. boards.cpp uses this to perform initialization tasks in a portable way, with two new boards_setup.cpp files under wirish/stm32f1 and wirish/stm32f2 handling the series-specific details. Signed-off-by: Marti Bolivar --- wirish/stm32f1/boards_setup.cpp | 141 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 wirish/stm32f1/boards_setup.cpp (limited to 'wirish/stm32f1') diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp new file mode 100644 index 0000000..4ee292a --- /dev/null +++ b/wirish/stm32f1/boards_setup.cpp @@ -0,0 +1,141 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. +*****************************************************************************/ + +/** + * @file wirish/stm32f1/boards_setup.cpp + * @author Marti Bolivar + * @brief STM32F1 chip setup. + */ + +#include +#include +#include +#include +#include + +#include + +/* FIXME: Reintroduce all "#if 0"'ed blocks once libmaple provides + * these definitions again. */ + +namespace wirish { + namespace priv { + + static stm32f1_rcc_pll_data pll_data = {RCC_PLLMUL_9}; + rcc_pll_cfg board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; + +#if 0 + static void config_adc(const adc_dev* dev); + static void config_timer(timer_dev*); +#endif + + void board_reset_pll(void) { + // TODO + } + + void board_setup_clock_prescalers(void) { + rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1); + rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_2); + rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_1); + } + + void board_setup_gpio(void) { + gpio_init_all(); + // Initialize AFIO here, too, so peripheral remaps and external + // interrupts work out of the box. + afio_init(); + } + + void board_setup_adc(void) { +#if 0 + rcc_set_prescaler(RCC_PRESCALER_ADC, RCC_ADCPRE_PCLK_DIV_6); + adc_foreach(config_adc); +#endif + } + + void board_setup_timers(void) { +#if 0 + timer_foreach(config_timer); +#endif + } + + void board_setup_usb(void) { +#if 0 + usb_cdcacm_enable(BOARD_USB_DISC_DEV, BOARD_USB_DISC_BIT); +#endif + } + + /* + * Auxiliary routines + */ + +#if 0 + static void config_adc(const adc_dev *dev) { + adc_init(dev); + + adc_set_extsel(dev, ADC_SWSTART); + adc_set_exttrig(dev, true); + + adc_enable(dev); + adc_calibrate(dev); + adc_set_sample_rate(dev, ADC_SMPR_55_5); + } + + static void config_timer(timer_dev *dev) { + timer_adv_reg_map *regs = (dev->regs).adv; + const uint16 full_overflow = 0xFFFF; + const uint16 half_duty = 0x8FFF; + + timer_init(dev); + timer_pause(dev); + + regs->CR1 = TIMER_CR1_ARPE; + regs->PSC = 1; + regs->SR = 0; + regs->DIER = 0; + regs->EGR = TIMER_EGR_UG; + + switch (dev->type) { + case TIMER_ADVANCED: + regs->BDTR = TIMER_BDTR_MOE | TIMER_BDTR_LOCK_OFF; + // fall-through + case TIMER_GENERAL: + timer_set_reload(dev, full_overflow); + + for (int channel = 1; channel <= 4; channel++) { + timer_set_compare(dev, channel, half_duty); + timer_oc_set_mode(dev, channel, TIMER_OC_MODE_PWM_1, TIMER_OC_PE); + } + // fall-through + case TIMER_BASIC: + break; + } + + timer_resume(dev); + } +#endif + } +} -- cgit v1.2.3 From 28825b6a2f66b0329229185eb9cbd9004fae4b1b Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Mon, 26 Mar 2012 22:17:47 -0400 Subject: Resurrect ADC support. Standard refactoring: add series headers for F1 and F2, along with series adc.c files. There are some issues relating to adc_extsel_event to hammer out later, but this will do for now. We also add some new portability interfaces to libmaple/adc.h in order for Wirish to use the same code to initialize the ADCs at init() time. As usual, F1 is untested. Signed-off-by: Marti Bolivar --- libmaple/adc.c | 74 +------- libmaple/include/libmaple/adc.h | 175 +++++++----------- libmaple/rules.mk | 4 +- libmaple/stm32f1/adc.c | 110 +++++++++++ libmaple/stm32f1/include/series/adc.h | 254 ++++++++++++++++++++++++++ libmaple/stm32f1/rules.mk | 3 +- libmaple/stm32f2/adc.c | 84 +++++++++ libmaple/stm32f2/include/series/adc.h | 331 ++++++++++++++++++++++++++++++++++ libmaple/stm32f2/rules.mk | 1 + wirish/boards.cpp | 15 +- wirish/boards_private.h | 12 +- wirish/stm32f1/boards_setup.cpp | 39 ++-- wirish/stm32f2/boards_setup.cpp | 32 +++- 13 files changed, 920 insertions(+), 214 deletions(-) create mode 100644 libmaple/stm32f1/adc.c create mode 100644 libmaple/stm32f1/include/series/adc.h create mode 100644 libmaple/stm32f2/adc.c create mode 100644 libmaple/stm32f2/include/series/adc.h (limited to 'wirish/stm32f1') diff --git a/libmaple/adc.c b/libmaple/adc.c index 40369e9..acce923 100644 --- a/libmaple/adc.c +++ b/libmaple/adc.c @@ -25,44 +25,15 @@ *****************************************************************************/ /** - * @file adc.c - * + * @file libmaple/adc.c + * @author Marti Bolivar , + * Perry Hung * @brief Analog to digital converter routines - * - * IMPORTANT: maximum external impedance must be below 0.4kOhms for 1.5 - * sample conversion time. - * - * At 55.5 cycles/sample, the external input impedance < 50kOhms. - * - * See STM32 manual RM0008 for how to calculate this. */ +#include #include #include -#include - -static adc_dev adc1 = { - .regs = ADC1_BASE, - .clk_id = RCC_ADC1 -}; -/** ADC1 device. */ -const adc_dev *ADC1 = &adc1; - -static adc_dev adc2 = { - .regs = ADC2_BASE, - .clk_id = RCC_ADC2 -}; -/** ADC2 device. */ -const adc_dev *ADC2 = &adc2; - -#ifdef STM32_HIGH_DENSITY -adc_dev adc3 = { - .regs = ADC3_BASE, - .clk_id = RCC_ADC3 -}; -/** ADC3 device. */ -const adc_dev *ADC3 = &adc3; -#endif /** * @brief Initialize an ADC peripheral. @@ -91,20 +62,10 @@ void adc_set_extsel(const adc_dev *dev, adc_extsel_event event) { } /** - * @brief Call a function on all ADC devices. - * @param fn Function to call on each ADC device. - */ -void adc_foreach(void (*fn)(const adc_dev*)) { - fn(ADC1); - fn(ADC2); -#ifdef STM32_HIGH_DENSITY - fn(ADC3); -#endif -} - -/** - * @brief Turn the given sample rate into values for ADC_SMPRx. Don't - * call this during conversion. + * @brief Set the sample rate for all channels on an ADC device. + * + * Don't call this during conversion. + * * @param dev adc device * @param smp_rate sample rate to set * @see adc_smp_rate @@ -126,26 +87,9 @@ void adc_set_sample_rate(const adc_dev *dev, adc_smp_rate smp_rate) { dev->regs->SMPR2 = adc_smpr2_val; } -/** - * @brief Calibrate an ADC peripheral - * @param dev adc device - */ -void adc_calibrate(const adc_dev *dev) { - __io uint32 *rstcal_bit = bb_perip(&(dev->regs->CR2), 3); - __io uint32 *cal_bit = bb_perip(&(dev->regs->CR2), 2); - - *rstcal_bit = 1; - while (*rstcal_bit) - ; - - *cal_bit = 1; - while (*cal_bit) - ; -} - /** * @brief Perform a single synchronous software triggered conversion on a - * channel. + * channel. * @param dev ADC device to use for reading. * @param channel channel to convert * @return conversion result diff --git a/libmaple/include/libmaple/adc.h b/libmaple/include/libmaple/adc.h index d531d00..be29676 100644 --- a/libmaple/include/libmaple/adc.h +++ b/libmaple/include/libmaple/adc.h @@ -1,6 +1,7 @@ /****************************************************************************** * The MIT License * + * Copyright (c) 2012 LeafLabs, LLC. * Copyright (c) 2010 Perry Hung. * * Permission is hereby granted, free of charge, to any person @@ -25,9 +26,10 @@ *****************************************************************************/ /** - * @file adc.h - * - * @brief Analog-to-Digital Conversion (ADC) header. + * @file libmaple/adc.h + * @author Marti Bolivar , + * Perry Hung + * @brief Analog-to-Digital Conversion (ADC) header. */ #ifndef _LIBMAPLE_ADC_H_ @@ -40,6 +42,12 @@ extern "C"{ #include #include #include +/* We include the series header below, after defining the register map + * and device structs. */ + +/* + * Register map + */ /** ADC register map type. */ typedef struct adc_reg_map { @@ -71,24 +79,30 @@ typedef struct adc_dev { rcc_clk_id clk_id; /**< RCC clock information */ } adc_dev; -extern const adc_dev *ADC1; -extern const adc_dev *ADC2; -#ifdef STM32_HIGH_DENSITY -extern const adc_dev *ADC3; -#endif - -/* - * Register map base pointers +/* Pull in the series header (which may need the above struct + * definitions). + * + * IMPORTANT: The series header must define the following: + * + * - enum adc_extsel_event (and typedef to adc_extsel_event): One per + * external event used to trigger start of conversion of a regular + * group. If two different series support the same event as a + * trigger, they must use the same token for the enumerator for that + * event. (The value of the enumerator is of course allowed to be + * different). + * + * - enum adc_smp_rate (and typedef to adc_smp_rate): One per + * available sampling time. These must be in the form ADC_SMPR_X_Y + * for X.Y cycles (e.g. ADC_SMPR_1_5 means 1.5 cycles), or + * ADC_SMPR_X for X cycles (e.g. ADC_SMPR_3 means 3 cycles). + * + * - enum adc_prescaler (and typedef): One per available prescaler, + * suitable for adc_set_prescaler. Series which have the same + * prescaler dividers (e.g. STM32F1 and STM32F2 both divide PCLK2 by + * 2, 4, 6, or 8) must provide the same tokens as enumerators, for + * portability. */ - -/** ADC1 register map base pointer. */ -#define ADC1_BASE ((struct adc_reg_map*)0x40012400) -/** ADC2 register map base pointer. */ -#define ADC2_BASE ((struct adc_reg_map*)0x40012800) -#ifdef STM32_HIGH_DENSITY -/** ADC3 register map base pointer. */ -#define ADC3_BASE ((struct adc_reg_map*)0x40013C00) -#endif +#include /* * Register bit definitions @@ -136,31 +150,9 @@ extern const adc_dev *ADC3; /* Control register 2 */ -#define ADC_CR2_ADON_BIT 0 -#define ADC_CR2_CONT_BIT 1 -#define ADC_CR2_CAL_BIT 2 -#define ADC_CR2_RSTCAL_BIT 3 -#define ADC_CR2_DMA_BIT 8 -#define ADC_CR2_ALIGN_BIT 11 -#define ADC_CR2_JEXTTRIG_BIT 15 -#define ADC_CR2_EXTTRIG_BIT 20 -#define ADC_CR2_JSWSTART_BIT 21 -#define ADC_CR2_SWSTART_BIT 22 -#define ADC_CR2_TSEREFE_BIT 23 - -#define ADC_CR2_ADON BIT(ADC_CR2_ADON_BIT) -#define ADC_CR2_CONT BIT(ADC_CR2_CONT_BIT) -#define ADC_CR2_CAL BIT(ADC_CR2_CAL_BIT) -#define ADC_CR2_RSTCAL BIT(ADC_CR2_RSTCAL_BIT) -#define ADC_CR2_DMA BIT(ADC_CR2_DMA_BIT) -#define ADC_CR2_ALIGN BIT(ADC_CR2_ALIGN_BIT) -#define ADC_CR2_JEXTSEL (0x7000) -#define ADC_CR2_JEXTTRIG BIT(ADC_CR2_JEXTTRIG_BIT) -#define ADC_CR2_EXTSEL (0xE0000) -#define ADC_CR2_EXTTRIG BIT(ADC_CR2_EXTTRIG_BIT) -#define ADC_CR2_JSWSTART BIT(ADC_CR2_JSWSTART_BIT) -#define ADC_CR2_SWSTART BIT(ADC_CR2_SWSTART_BIT) -#define ADC_CR2_TSEREFE BIT(ADC_CR2_TSEREFE_BIT) +/* Because this register varies significantly by series (e.g. some + * bits moved and others disappeared in the F1->F2 transition), its + * definitions are in the series headers. */ /* Sample time register 1 */ @@ -245,68 +237,47 @@ extern const adc_dev *ADC3; #define ADC_DR_ADC2DATA (0xFFFF << 16) #define ADC_DR_DATA 0xFFFF -void adc_init(const adc_dev *dev); +/* + * Routines + */ /** - * @brief External event selector for regular group conversion. - * @see adc_set_extsel + * @brief Set the ADC prescaler. + * + * This determines the ADC clock for all devices. */ -typedef enum adc_extsel_event { - ADC_ADC12_TIM1_CC1 = (0 << 17), /**< ADC1 and ADC2: Timer 1 CC1 event */ - ADC_ADC12_TIM1_CC2 = (1 << 17), /**< ADC1 and ADC2: Timer 1 CC2 event */ - ADC_ADC12_TIM1_CC3 = (2 << 17), /**< ADC1 and ADC2: Timer 1 CC3 event */ - ADC_ADC12_TIM2_CC2 = (3 << 17), /**< ADC1 and ADC2: Timer 2 CC2 event */ - ADC_ADC12_TIM3_TRGO = (4 << 17), /**< ADC1 and ADC2: Timer 3 TRGO event */ - ADC_ADC12_TIM4_CC4 = (5 << 17), /**< ADC1 and ADC2: Timer 4 CC4 event */ - ADC_ADC12_EXTI11 = (6 << 17), /**< ADC1 and ADC2: EXTI11 event */ -#ifdef STM32_HIGH_DENSITY - ADC_ADC12_TIM8_TRGO = (6 << 17), /**< ADC1 and ADC2: Timer 8 TRGO - event (high density only) */ -#endif - ADC_ADC12_SWSTART = (7 << 17), /**< ADC1 and ADC2: Software start */ -#ifdef STM32_HIGH_DENSITY - ADC_ADC3_TIM3_CC1 = (0 << 17), /**< ADC3: Timer 3 CC1 event - (high density only) */ - ADC_ADC3_TIM2_CC3 = (1 << 17), /**< ADC3: Timer 2 CC3 event - (high density only) */ - ADC_ADC3_TIM1_CC3 = (2 << 17), /**< ADC3: Timer 1 CC3 event - (high density only) */ - ADC_ADC3_TIM8_CC1 = (3 << 17), /**< ADC3: Timer 8 CC1 event - (high density only) */ - ADC_ADC3_TIM8_TRGO = (4 << 17), /**< ADC3: Timer 8 TRGO event - (high density only) */ - ADC_ADC3_TIM5_CC1 = (5 << 17), /**< ADC3: Timer 5 CC1 event - (high density only) */ - ADC_ADC3_TIM5_CC3 = (6 << 17), /**< ADC3: Timer 5 CC3 event - (high density only) */ - ADC_ADC3_SWSTART = (7 << 17), /**< ADC3: Software start (high - density only) */ -#endif - ADC_SWSTART = (7 << 17) /**< ADC1, ADC2, ADC3: Software start */ -} adc_extsel_event; +void adc_set_prescaler(adc_prescaler pre); +void adc_init(const adc_dev *dev); void adc_set_extsel(const adc_dev *dev, adc_extsel_event event); +void adc_set_sample_rate(const adc_dev *dev, adc_smp_rate smp_rate); +uint16 adc_read(const adc_dev *dev, uint8 channel); + +/** + * @brief Call a function on all ADC devices. + * @param fn Function to call on each ADC device. + */ void adc_foreach(void (*fn)(const adc_dev*)); /** - * @brief ADC sample times, in ADC clock cycles - * - * These control the amount of time spent sampling the input voltage. + * @brief Configure a GPIO pin for ADC conversion. + * @param gdev GPIO device to configure. + * @param bit Bit on gdev to configure for ADC conversion. */ -typedef enum { - ADC_SMPR_1_5, /**< 1.5 ADC cycles */ - ADC_SMPR_7_5, /**< 7.5 ADC cycles */ - ADC_SMPR_13_5, /**< 13.5 ADC cycles */ - ADC_SMPR_28_5, /**< 28.5 ADC cycles */ - ADC_SMPR_41_5, /**< 41.5 ADC cycles */ - ADC_SMPR_55_5, /**< 55.5 ADC cycles */ - ADC_SMPR_71_5, /**< 71.5 ADC cycles */ - ADC_SMPR_239_5 /**< 239.5 ADC cycles */ -} adc_smp_rate; +struct gpio_dev; +void adc_gpio_cfg(struct gpio_dev *gdev, uint8 bit); -void adc_set_sample_rate(const adc_dev *dev, adc_smp_rate smp_rate); -void adc_calibrate(const adc_dev *dev); -uint16 adc_read(const adc_dev *dev, uint8 channel); +/** + * @brief Enable an ADC and configure it for single conversion mode. + * + * This function performs any initialization necessary to allow the + * ADC device to perform a single synchronous regular software + * triggered conversion, using adc_read(). + * + * @param dev Device to enable. + * @see adc_read() + */ +void adc_enable_single_swstart(const adc_dev* dev); /** * @brief Set the regular channel sequence length. @@ -324,16 +295,6 @@ static inline void adc_set_reg_seqlen(const adc_dev *dev, uint8 length) { dev->regs->SQR1 = tmp; } -/** - * @brief Set external trigger conversion mode event for regular channels - * @param dev ADC device - * @param enable If 1, conversion on external events is enabled; if 0, - * disabled. - */ -static inline void adc_set_exttrig(const adc_dev *dev, uint8 enable) { - *bb_perip(&dev->regs->CR2, ADC_CR2_EXTTRIG_BIT) = !!enable; -} - /** * @brief Enable an adc peripheral * @param dev ADC device to enable diff --git a/libmaple/rules.mk b/libmaple/rules.mk index cc562ea..d118b16 100644 --- a/libmaple/rules.mk +++ b/libmaple/rules.mk @@ -11,7 +11,8 @@ LIBMAPLE_PRIVATE_INCLUDES := -I$(LIBMAPLE_PATH) CFLAGS_$(d) = $(LIBMAPLE_PRIVATE_INCLUDES) $(LIBMAPLE_INCLUDES) -Wall -Werror # Local rules and targets -cSRCS_$(d) := flash.c +cSRCS_$(d) := adc.c +cSRCS_$(d) += flash.c cSRCS_$(d) += gpio.c cSRCS_$(d) += iwdg.c cSRCS_$(d) += nvic.c @@ -23,7 +24,6 @@ cSRCS_$(d) += usart.c cSRCS_$(d) += usart_private.c cSRCS_$(d) += util.c # These still need to be ported to F2: -# cSRCS_$(d) += adc.c # cSRCS_$(d) += dac.c # cSRCS_$(d) += dma.c # cSRCS_$(d) += exti.c diff --git a/libmaple/stm32f1/adc.c b/libmaple/stm32f1/adc.c new file mode 100644 index 0000000..8242520 --- /dev/null +++ b/libmaple/stm32f1/adc.c @@ -0,0 +1,110 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * Copyright (c) 2010 Perry Hung. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file libmaple/stm32f1/include/series/adc.c + * @brief STM32F1 ADC header. + */ + +#include +#include + +/* + * Devices + */ + +static adc_dev adc1 = { + .regs = ADC1_BASE, + .clk_id = RCC_ADC1 +}; +/** ADC1 device. */ +const adc_dev *ADC1 = &adc1; + +static adc_dev adc2 = { + .regs = ADC2_BASE, + .clk_id = RCC_ADC2 +}; +/** ADC2 device. */ +const adc_dev *ADC2 = &adc2; + +#ifdef STM32_HIGH_DENSITY +adc_dev adc3 = { + .regs = ADC3_BASE, + .clk_id = RCC_ADC3 +}; +/** ADC3 device. */ +const adc_dev *ADC3 = &adc3; +#endif + +/* + * STM32F1 routines + */ + +/** + * @brief Calibrate an ADC peripheral + * @param dev adc device + */ +void adc_calibrate(const adc_dev *dev) { + __io uint32 *rstcal_bit = bb_perip(&(dev->regs->CR2), 3); + __io uint32 *cal_bit = bb_perip(&(dev->regs->CR2), 2); + + *rstcal_bit = 1; + while (*rstcal_bit) + ; + + *cal_bit = 1; + while (*cal_bit) + ; +} + +/* + * Common routines + */ + +void adc_set_prescaler(adc_prescaler pre) { + rcc_set_prescaler(RCC_PRESCALER_ADC, (uint32)pre); +} + +void adc_foreach(void (*fn)(const adc_dev*)) { + fn(ADC1); + fn(ADC2); +#ifdef STM32_HIGH_DENSITY + fn(ADC3); +#endif +} + +void adc_gpio_cfg(gpio_dev *gdev, uint8 bit) { + gpio_set_mode(gdev, bit, GPIO_INPUT_ANALOG); +} + +void adc_enable_single_swstart(const adc_dev *dev) { + adc_init(dev); + adc_set_extsel(dev, ADC_SWSTART); + adc_set_exttrig(dev, 1); + adc_enable(dev); + adc_calibrate(dev); +} diff --git a/libmaple/stm32f1/include/series/adc.h b/libmaple/stm32f1/include/series/adc.h new file mode 100644 index 0000000..1798e55 --- /dev/null +++ b/libmaple/stm32f1/include/series/adc.h @@ -0,0 +1,254 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * Copyright (c) 2010 Perry Hung. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file stm32f1/include/series/adc.h + * @author Marti Bolivar , + * Perry Hung + * @brief STM32F1 ADC header. + */ + +#ifndef _LIBMAPLE_STM32F1_ADC_H_ +#define _LIBMAPLE_STM32F1_ADC_H_ + +#include /* For the prescalers */ + +/* + * Devices + */ + +extern const struct adc_dev *ADC1; +extern const struct adc_dev *ADC2; +#ifdef STM32_HIGH_DENSITY +extern const struct adc_dev *ADC3; +#endif + +/* + * Register map base pointers + */ + +/** ADC1 register map base pointer. */ +#define ADC1_BASE ((struct adc_reg_map*)0x40012400) +/** ADC2 register map base pointer. */ +#define ADC2_BASE ((struct adc_reg_map*)0x40012800) +#ifdef STM32_HIGH_DENSITY +/** ADC3 register map base pointer. */ +#define ADC3_BASE ((struct adc_reg_map*)0x40013C00) +#endif + +/* + * Register bit definitions + */ + +/* Control register 2 */ + +#define ADC_CR2_ADON_BIT 0 +#define ADC_CR2_CONT_BIT 1 +#define ADC_CR2_CAL_BIT 2 +#define ADC_CR2_RSTCAL_BIT 3 +#define ADC_CR2_DMA_BIT 8 +#define ADC_CR2_ALIGN_BIT 11 +#define ADC_CR2_JEXTTRIG_BIT 15 +#define ADC_CR2_EXTTRIG_BIT 20 +#define ADC_CR2_JSWSTART_BIT 21 +#define ADC_CR2_SWSTART_BIT 22 +#define ADC_CR2_TSEREFE_BIT 23 + +#define ADC_CR2_ADON (1U << ADC_CR2_ADON_BIT) +#define ADC_CR2_CONT (1U << ADC_CR2_CONT_BIT) +#define ADC_CR2_CAL (1U << ADC_CR2_CAL_BIT) +#define ADC_CR2_RSTCAL (1U << ADC_CR2_RSTCAL_BIT) +#define ADC_CR2_DMA (1U << ADC_CR2_DMA_BIT) +#define ADC_CR2_ALIGN (1U << ADC_CR2_ALIGN_BIT) +#define ADC_CR2_JEXTSEL 0x7000 +#define ADC_CR2_JEXTTRIG (1U << ADC_CR2_JEXTTRIG_BIT) +#define ADC_CR2_EXTSEL 0xE0000 +#define ADC_CR2_EXTTRIG (1U << ADC_CR2_EXTTRIG_BIT) +#define ADC_CR2_JSWSTART (1U << ADC_CR2_JSWSTART_BIT) +#define ADC_CR2_SWSTART (1U << ADC_CR2_SWSTART_BIT) +#define ADC_CR2_TSEREFE (1U << ADC_CR2_TSEREFE_BIT) + +/* + * Other types + */ + +/** + * @brief STM32F1 external event selectors for regular group + * conversion. + * + * Some external events are only available on ADCs 1 and 2, others + * only on ADC3, while others are available on all three ADCs. + * Additionally, some events are only available on high- and + * XL-density STM32F1 MCUs, as they use peripherals only available on + * those MCU densities. + * + * For ease of use, each event selector is given along with the ADCs + * it's available on, along with any other availability restrictions. + * + * @see adc_set_extsel() + */ +typedef enum adc_extsel_event { + /* TODO: Smarten this up a bit, as follows. + * + * The EXTSEL bits on F1 are a little brain-damaged in that the + * TIM8 TRGO event has different bits depending on whether you're + * using ADC1/2 or ADC3. We route around this by declaring two + * enumerators, ADC_EXT_EV_ADC12_TIM8_TRGO and + * ADC_EXT_EV_ADC3_TIM8_TRGO. + * + * The right thing to do is to provide a single + * ADC_EXT_EV_TIM8_TRGO enumerator and override adc_set_extsel on + * STM32F1 to handle this situation correctly. We can do that + * later, though, and change the per-ADC enumerator values to + * ADC_EXT_EV_TIM8_TRGO to preserve compatibility. */ + + /* ADC1 and ADC2 only: */ + ADC_EXT_EV_TIM1_CC1 = 0x00000, /**< ADC1, ADC2: Timer 1 CC1 event */ + ADC_EXT_EV_TIM1_CC2 = 0x20000, /**< ADC1, ADC2: Timer 1 CC2 event */ + ADC_EXT_EV_TIM2_CC2 = 0x60000, /**< ADC1, ADC2: Timer 2 CC2 event */ + ADC_EXT_EV_TIM3_TRGO = 0x80000, /**< ADC1, ADC2: Timer 3 TRGO event */ + ADC_EXT_EV_TIM4_CC4 = 0xA0000, /**< ADC1, ADC2: Timer 4 CC4 event */ + ADC_EXT_EV_EXTI11 = 0xC0000, /**< ADC1, ADC2: EXTI11 event */ + + /* Common: */ + ADC_EXT_EV_TIM1_CC3 = 0x40000, /**< ADC1, ADC2, ADC3: Timer 1 CC3 event */ + ADC_EXT_EV_SWSTART = 0xE0000, /**< ADC1, ADC2, ADC3: Software start */ + + /* HD only: */ + ADC_EXT_EV_TIM3_CC1 = 0x00000, /**< + * ADC3: Timer 3 CC1 event + * Availability: high- and XL-density. */ + ADC_EXT_EV_TIM2_CC3 = 0x20000, /**< + * ADC3: Timer 2 CC3 event + * Availability: high- and XL-density. */ + ADC_EXT_EV_TIM8_CC1 = 0x60000, /**< + * ADC3: Timer 8 CC1 event + * Availability: high- and XL-density. */ + ADC_EXT_EV_ADC3_TIM8_TRGO = 0x80000, /**< + * ADC3: Timer 8 TRGO event + * Availability: high- and XL-density. */ + ADC_EXT_EV_TIM5_CC1 = 0xA0000, /**< + * ADC3: Timer 5 CC1 event + * Availability: high- and XL-density. */ + ADC_EXT_EV_ADC12_TIM8_TRGO = 0xC0000, /**< + * ADC1, ADC2: Timer 8 TRGO event + * Availability: high- and XL-density. */ + ADC_EXT_EV_TIM5_CC3 = 0xC0000, /**< + * ADC3: Timer 5 CC3 event + * Availability: high- and XL-density. */ +} adc_extsel_event; + +/* We'll keep these old adc_extsel_event enumerators around for a + * while, for backwards compatibility: */ +/** Deprecated. Use ADC_EXT_EV_TIM1_CC1 instead. */ +#define ADC_ADC12_TIM1_CC1 ADC_EXT_EV_TIM1_CC1 +/** Deprecated. Use ADC_EXT_EV_TIM1_CC2 instead. */ +#define ADC_ADC12_TIM1_CC2 ADC_EXT_EV_TIM1_CC2 +/** Deprecated. Use ADC_EXT_EV_TIM1_CC3 instead. */ +#define ADC_ADC12_TIM1_CC3 ADC_EXT_EV_TIM1_CC3 +/** Deprecated. Use ADC_EXT_EV_TIM2_CC2 instead. */ +#define ADC_ADC12_TIM2_CC2 ADC_EXT_EV_TIM2_CC2 +/** Deprecated. Use ADC_EXT_EV_TIM3_TRGO instead. */ +#define ADC_ADC12_TIM3_TRGO ADC_EXT_EV_TIM3_TRGO +/** Deprecated. Use ADC_EXT_EV_TIM4_CC4 instead. */ +#define ADC_ADC12_TIM4_CC4 ADC_EXT_EV_TIM4_CC4 +/** Deprecated. Use ADC_EXT_EV_EXTI11 instead. */ +#define ADC_ADC12_EXTI11 ADC_EXT_EV_EXTI11 +/** Deprecated. Use ADC_EXT_EV_ADC12_TIM8_TRGO instead. */ +#define ADC_ADC12_TIM8_TRGO ADC_EXT_EV_ADC12_TIM8_TRGO +/** Deprecated. Use ADC_EXT_EV_SWSTART instead. */ +#define ADC_ADC12_SWSTART ADC_EXT_EV_SWSTART +/** Deprecated. Use ADC_EXT_EV_TIM1_CC1 instead. */ +#define ADC_ADC3_TIM3_CC1 ADC_EXT_EV_TIM1_CC1 +/** Deprecated. Use ADC_EXT_EV_TIM1_CC2 instead. */ +#define ADC_ADC3_TIM2_CC3 ADC_EXT_EV_TIM1_CC2 +/** Deprecated. Use ADC_EXT_EV_TIM1_CC3 instead. */ +#define ADC_ADC3_TIM1_CC3 ADC_EXT_EV_TIM1_CC3 +/** Deprecated. Use ADC_EXT_EV_TIM2_CC2 instead. */ +#define ADC_ADC3_TIM8_CC1 ADC_EXT_EV_TIM2_CC2 +/** Deprecated. Use ADC_EXT_EV_TIM3_TRGO instead. */ +#define ADC_ADC3_TIM8_TRGO ADC_EXT_EV_TIM3_TRGO +/** Deprecated. Use ADC_EXT_EV_TIM4_CC4 instead. */ +#define ADC_ADC3_TIM5_CC1 ADC_EXT_EV_TIM4_CC4 +/** Deprecated. Use ADC_EXT_EV_EXTI11 instead. */ +#define ADC_ADC3_TIM5_CC3 ADC_EXT_EV_EXTI11 +/** Deprecated. Use ADC_EXT_EV_TIM8_TRGO instead. */ +#define ADC_ADC3_SWSTART ADC_EXT_EV_TIM8_TRGO +/** Deprecated. Use ADC_EXT_EV_SWSTART instead. */ +#define ADC_SWSTART ADC_EXT_EV_SWSTART + +/** + * @brief STM32F1 sample times, in ADC clock cycles. + * + * These control the amount of time spent sampling the input voltage. + * + * IMPORTANT: maximum external impedance must be below 0.4kOhms for + * 1.5 cycle sampling time. At 55.5 cycles/sample, the external input + * impedance must be at most 50kOhms. See your device's datasheet for + * more information. + */ +typedef enum adc_smp_rate { + ADC_SMPR_1_5, /**< 1.5 ADC cycles */ + ADC_SMPR_7_5, /**< 7.5 ADC cycles */ + ADC_SMPR_13_5, /**< 13.5 ADC cycles */ + ADC_SMPR_28_5, /**< 28.5 ADC cycles */ + ADC_SMPR_41_5, /**< 41.5 ADC cycles */ + ADC_SMPR_55_5, /**< 55.5 ADC cycles */ + ADC_SMPR_71_5, /**< 71.5 ADC cycles */ + ADC_SMPR_239_5, /**< 239.5 ADC cycles */ +} adc_smp_rate; + +/** + * @brief STM32F1 ADC prescalers, as divisors of PCLK2. + */ +typedef enum adc_prescaler { + ADC_PRE_PCLK2_DIV_2 = RCC_ADCPRE_PCLK_DIV_2, /** PCLK2 divided by 2 */ + ADC_PRE_PCLK2_DIV_4 = RCC_ADCPRE_PCLK_DIV_4, /** PCLK2 divided by 4 */ + ADC_PRE_PCLK2_DIV_6 = RCC_ADCPRE_PCLK_DIV_6, /** PCLK2 divided by 6 */ + ADC_PRE_PCLK2_DIV_8 = RCC_ADCPRE_PCLK_DIV_8, /** PCLK2 divided by 8 */ +} adc_prescaler; + +/* + * Routines + */ + +void adc_calibrate(const adc_dev *dev); + +/** + * @brief Set external trigger conversion mode event for regular channels + * + * Availability: STM32F1. + * + * @param dev ADC device + * @param enable If 1, conversion on external events is enabled; if 0, + * disabled. + */ +static inline void adc_set_exttrig(const adc_dev *dev, uint8 enable) { + *bb_perip(&dev->regs->CR2, ADC_CR2_EXTTRIG_BIT) = !!enable; +} + +#endif diff --git a/libmaple/stm32f1/rules.mk b/libmaple/stm32f1/rules.mk index bdff00e..c0d6344 100644 --- a/libmaple/stm32f1/rules.mk +++ b/libmaple/stm32f1/rules.mk @@ -11,7 +11,8 @@ CFLAGS_$(d) = -I$(d) $(LIBMAPLE_PRIVATE_INCLUDES) $(LIBMAPLE_INCLUDES) -Wall -We sSRCS_$(d) := isrs_performance.S sSRCS_$(d) += vector_table_performance.S -cSRCS_$(d) := bkp.c +cSRCS_$(d) := adc.c +cSRCS_$(d) += bkp.c cSRCS_$(d) += fsmc.c cSRCS_$(d) += gpio.c cSRCS_$(d) += rcc.c diff --git a/libmaple/stm32f2/adc.c b/libmaple/stm32f2/adc.c new file mode 100644 index 0000000..fbe1618 --- /dev/null +++ b/libmaple/stm32f2/adc.c @@ -0,0 +1,84 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file libmaple/stm32f2/include/series/adc.c + * @brief STM32F2 ADC header. + */ + +#include +#include + +/* + * Devices + */ + +static adc_dev adc1 = { + .regs = ADC1_BASE, + .clk_id = RCC_ADC1, +}; +/** ADC1 device. */ +const adc_dev *ADC1 = &adc1; + +static adc_dev adc2 = { + .regs = ADC2_BASE, + .clk_id = RCC_ADC2, +}; +/** ADC2 device. */ +const adc_dev *ADC2 = &adc2; + +adc_dev adc3 = { + .regs = ADC3_BASE, + .clk_id = RCC_ADC3, +}; +/** ADC3 device. */ +const adc_dev *ADC3 = &adc3; + +/* + * Common routines + */ + +void adc_set_prescaler(adc_prescaler pre) { + uint32 ccr = ADC_COMMON_BASE->CCR; + ccr &= ~ADC_CCR_ADCPRE; + ccr |= (uint32)pre; + ADC_COMMON_BASE->CCR = ccr; +} + +void adc_foreach(void (*fn)(const adc_dev*)) { + fn(ADC1); + fn(ADC2); + fn(ADC3); +} + +void adc_gpio_cfg(gpio_dev *gdev, uint8 bit) { + gpio_set_modef(gdev, bit, GPIO_MODE_ANALOG, GPIO_MODEF_PUPD_NONE); +} + +void adc_enable_single_swstart(const adc_dev *dev) { + adc_init(dev); + adc_enable(dev); +} diff --git a/libmaple/stm32f2/include/series/adc.h b/libmaple/stm32f2/include/series/adc.h new file mode 100644 index 0000000..4f0cd6b --- /dev/null +++ b/libmaple/stm32f2/include/series/adc.h @@ -0,0 +1,331 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file stm32f2/include/series/adc.h + * @author Marti Bolivar , + * @brief STM32F2 ADC header. + */ + +#ifndef _LIBMAPLE_STM32F2_ADC_H_ +#define _LIBMAPLE_STM32F2_ADC_H_ + +#include + +/* + * Devices + */ + +extern const struct adc_dev *ADC1; +extern const struct adc_dev *ADC2; +extern const struct adc_dev *ADC3; + +/* + * Common register map + */ + +/** ADC common register map type */ +typedef struct adc_common_reg_map { + __io uint32 CSR; /**< Common status register */ + __io uint32 CCR; /**< Common control register */ + __io uint32 CDR; /**< + * @brief Common regular data register + * for dual and triple modes */ +} adc_common_reg_map; + +/* + * Register map base pointers + */ + +/** ADC1 register map base pointer. */ +#define ADC1_BASE ((struct adc_reg_map*)0x40012000) +/** ADC2 register map base pointer. */ +#define ADC2_BASE ((struct adc_reg_map*)0x40012100) +/** ADC3 register map base pointer. */ +#define ADC3_BASE ((struct adc_reg_map*)0x40012200) +/** ADC common register map base pointer. */ +#define ADC_COMMON_BASE ((struct adc_common_reg_map*)0x40012300) + +/* + * Register bit definitions + */ + +/* Status register */ + +/** Overrun bit. */ +#define ADC_SR_OVR_BIT 5 +/** Overrun. */ +#define ADC_SR_OVR (1U << ADC_SR_OVR_BIT) + +/* Control register 1 */ + +/** Overrun interrupt enable bit. */ +#define ADC_CR1_OVRIE_BIT 26 + +/** Overrun interrupt error enable. */ +#define ADC_CR1_OVRIE (1U << ADC_CR1_OVRIE_BIT) +/** Conversion resolution. */ +#define ADC_CR1_RES (0x3U << 24) +/** Conversion resolution: 12 bit (at least 15 ADCCLK cycles). */ +#define ADC_CR1_RES_12BIT (0x0U << 24) +/** Conversion resolution: 10 bit (at least 13 ADCCLK cycles). */ +#define ADC_CR1_RES_10BIT (0x1U << 24) +/** Conversion resolution: 8 bit (at least 11 ADCCLK cycles). */ +#define ADC_CR1_RES_8BIT (0x2U << 24) +/** Conversion resolution: 6 bit (at least 9 ADCCLK cycles). */ +#define ADC_CR1_RES_6BIT (0x3U << 24) + +/* Control register 2 */ + +#define ADC_CR2_SWSTART_BIT 30 +#define ADC_CR2_JSWSTART_BIT 22 +#define ADC_CR2_ALIGN_BIT 11 +#define ADC_CR2_EOCS_BIT 10 +#define ADC_CR2_DDS_BIT 9 +#define ADC_CR2_DMA_BIT 8 +#define ADC_CR2_CONT_BIT 1 +#define ADC_CR2_ADON_BIT 0 + +#define ADC_CR2_SWSTART (1U << ADC_CR2_SWSTART_BIT) +#define ADC_CR2_EXTEN (0x3 << 28) +#define ADC_CR2_EXTEN_DISABLED (0x0 << 28) +#define ADC_CR2_EXTEN_RISE (0x1 << 28) +#define ADC_CR2_EXTEN_FALL (0x2 << 28) +#define ADC_CR2_EXTEN_RISE_FALL (0x3 << 28) +#define ADC_CR2_EXTSEL (0xF << 24) +#define ADC_CR2_EXTSEL_TIM1_CC1 (0x0 << 24) +#define ADC_CR2_EXTSEL_TIM1_CC2 (0x1 << 24) +#define ADC_CR2_EXTSEL_TIM1_CC3 (0x2 << 24) +#define ADC_CR2_EXTSEL_TIM2_CC2 (0x3 << 24) +#define ADC_CR2_EXTSEL_TIM2_CC3 (0x4 << 24) +#define ADC_CR2_EXTSEL_TIM2_CC4 (0x5 << 24) +#define ADC_CR2_EXTSEL_TIM1_TRGO (0x6 << 24) +#define ADC_CR2_EXTSEL_TIM3_CC1 (0x7 << 24) +#define ADC_CR2_EXTSEL_TIM3_TRGO (0x8 << 24) +#define ADC_CR2_EXTSEL_TIM4_CC4 (0x9 << 24) +#define ADC_CR2_EXTSEL_TIM5_CC1 (0xA << 24) +#define ADC_CR2_EXTSEL_TIM5_CC2 (0xB << 24) +#define ADC_CR2_EXTSEL_TIM5_CC3 (0xC << 24) +#define ADC_CR2_EXTSEL_TIM8_CC1 (0xD << 24) +#define ADC_CR2_EXTSEL_TIM8_TRGO (0xE << 24) +#define ADC_CR2_EXTSEL_TIM1_EXTI11 (0xF << 24) +#define ADC_CR2_JSWSTART (1U << ADC_CR2_JSWSTART_BIT) +#define ADC_CR2_JEXTEN (0x3 << 20) +#define ADC_CR2_JEXTEN_DISABLED (0x0 << 20) +#define ADC_CR2_JEXTEN_RISE (0x1 << 20) +#define ADC_CR2_JEXTEN_FALL (0x2 << 20) +#define ADC_CR2_JEXTEN_RISE_FALL (0x3 << 20) +#define ADC_CR2_JEXTSEL (0xF << 16) +#define ADC_CR2_JEXTSEL_TIM1_CC4 (0x0 << 16) +#define ADC_CR2_JEXTSEL_TIM1_TRGO (0x1 << 16) +#define ADC_CR2_JEXTSEL_TIM2_CC1 (0x2 << 16) +#define ADC_CR2_JEXTSEL_TIM2_TRGO (0x3 << 16) +#define ADC_CR2_JEXTSEL_TIM3_CC2 (0x4 << 16) +#define ADC_CR2_JEXTSEL_TIM3_CC4 (0x5 << 16) +#define ADC_CR2_JEXTSEL_TIM4_CC1 (0x6 << 16) +#define ADC_CR2_JEXTSEL_TIM4_CC2 (0x7 << 16) +#define ADC_CR2_JEXTSEL_TIM4_CC3 (0x8 << 16) +#define ADC_CR2_JEXTSEL_TIM4_TRGO (0x9 << 16) +#define ADC_CR2_JEXTSEL_TIM5_CC4 (0xA << 16) +#define ADC_CR2_JEXTSEL_TIM5_TRGO (0xB << 16) +#define ADC_CR2_JEXTSEL_TIM8_CC2 (0xC << 16) +#define ADC_CR2_JEXTSEL_TIM8_CC3 (0xD << 16) +#define ADC_CR2_JEXTSEL_TIM8_CC4 (0xE << 16) +#define ADC_CR2_JEXTSEL_TIM1_EXTI15 (0xF << 16) +#define ADC_CR2_ALIGN (1U << ADC_CR2_ALIGN_BIT) +#define ADC_CR2_ALIGN_RIGHT (0U << ADC_CR2_ALIGN_BIT) +#define ADC_CR2_ALIGN_LEFT (1U << ADC_CR2_ALIGN_BIT) +#define ADC_CR2_EOCS (1U << ADC_CR2_EOCS_BIT) +#define ADC_CR2_EOCS_SEQUENCE (0U << ADC_CR2_EOCS_BIT) +#define ADC_CR2_EOCS_CONVERSION (1U << ADC_CR2_EOCS_BIT) +#define ADC_CR2_DDS (1U << ADC_CR2_DDS_BIT) +#define ADC_CR2_DMA (1U << ADC_CR2_DMA_BIT) +#define ADC_CR2_CONT (1U << ADC_CR2_CONT_BIT) +#define ADC_CR2_ADON (1U << ADC_CR2_ADON_BIT) + +/* Common status register */ + +#define ADC_CSR_OVR3_BIT 21 +#define ADC_CSR_STRT3_BIT 20 +#define ADC_CSR_JSTRT3_BIT 19 +#define ADC_CSR_JEOC3_BIT 18 +#define ADC_CSR_EOC3_BIT 17 +#define ADC_CSR_AWD3_BIT 16 +#define ADC_CSR_OVR2_BIT 13 +#define ADC_CSR_STRT2_BIT 12 +#define ADC_CSR_JSTRT2_BIT 11 +#define ADC_CSR_JEOC2_BIT 10 +#define ADC_CSR_EOC2_BIT 9 +#define ADC_CSR_AWD2_BIT 8 +#define ADC_CSR_OVR1_BIT 5 +#define ADC_CSR_STRT1_BIT 4 +#define ADC_CSR_JSTRT1_BIT 3 +#define ADC_CSR_JEOC1_BIT 2 +#define ADC_CSR_EOC1_BIT 1 +#define ADC_CSR_AWD1_BIT 0 + +#define ADC_CSR_OVR3 (1U << ADC_CSR_OVR3_BIT) +#define ADC_CSR_STRT3 (1U << ADC_CSR_STRT3_BIT) +#define ADC_CSR_JSTRT3 (1U << ADC_CSR_JSTRT3_BIT) +#define ADC_CSR_JEOC3 (1U << ADC_CSR_JEOC3_BIT) +#define ADC_CSR_EOC3 (1U << ADC_CSR_EOC3_BIT) +#define ADC_CSR_AWD3 (1U << ADC_CSR_AWD3_BIT) +#define ADC_CSR_OVR2 (1U << ADC_CSR_OVR2_BIT) +#define ADC_CSR_STRT2 (1U << ADC_CSR_STRT2_BIT) +#define ADC_CSR_JSTRT2 (1U << ADC_CSR_JSTRT2_BIT) +#define ADC_CSR_JEOC2 (1U << ADC_CSR_JEOC2_BIT) +#define ADC_CSR_EOC2 (1U << ADC_CSR_EOC2_BIT) +#define ADC_CSR_AWD2 (1U << ADC_CSR_AWD2_BIT) +#define ADC_CSR_OVR1 (1U << ADC_CSR_OVR1_BIT) +#define ADC_CSR_STRT1 (1U << ADC_CSR_STRT1_BIT) +#define ADC_CSR_JSTRT1 (1U << ADC_CSR_JSTRT1_BIT) +#define ADC_CSR_JEOC1 (1U << ADC_CSR_JEOC1_BIT) +#define ADC_CSR_EOC1 (1U << ADC_CSR_EOC1_BIT) +#define ADC_CSR_AWD1 (1U << ADC_CSR_AWD1_BIT) + +/* Common control register */ + +#define ADC_CCR_TSVREFE_BIT 23 +#define ADC_CCR_VBATE_BIT 22 +#define ADC_CCR_DDS_BIT 13 + +#define ADC_CCR_TSVREFE (1U << ADC_CCR_TSVREFE_BIT) +#define ADC_CCR_VBATE (1U << ADC_CCR_VBATE_BIT) +#define ADC_CCR_ADCPRE (0x3 << 16) +#define ADC_CCR_ADCPRE_PCLK2_DIV_2 (0x0 << 16) +#define ADC_CCR_ADCPRE_PCLK2_DIV_4 (0x1 << 16) +#define ADC_CCR_ADCPRE_PCLK2_DIV_6 (0x2 << 16) +#define ADC_CCR_ADCPRE_PCLK2_DIV_8 (0x3 << 16) +#define ADC_CCR_DMA (0x3 << 14) +#define ADC_CCR_DMA_DIS (0x0 << 14) +#define ADC_CCR_DMA_MODE_1 (0x1 << 14) +#define ADC_CCR_DMA_MODE_2 (0x2 << 14) +#define ADC_CCR_DMA_MODE_3 (0x3 << 14) +#define ADC_CCR_DDS (1U << ADC_CCR_DDS_BIT) +#define ADC_CCR_DELAY (0xF << 8) +#define ADC_CCR_DELAY_5 (0x0 << 8) +#define ADC_CCR_DELAY_6 (0x1 << 8) +#define ADC_CCR_DELAY_7 (0x2 << 8) +#define ADC_CCR_DELAY_8 (0x3 << 8) +#define ADC_CCR_DELAY_9 (0x4 << 8) +#define ADC_CCR_DELAY_10 (0x5 << 8) +#define ADC_CCR_DELAY_11 (0x6 << 8) +#define ADC_CCR_DELAY_12 (0x7 << 8) +#define ADC_CCR_DELAY_13 (0x8 << 8) +#define ADC_CCR_DELAY_14 (0x9 << 8) +#define ADC_CCR_DELAY_15 (0xA << 8) +#define ADC_CCR_DELAY_16 (0xB << 8) +#define ADC_CCR_DELAY_17 (0xC << 8) +#define ADC_CCR_DELAY_18 (0xD << 8) +#define ADC_CCR_DELAY_19 (0xE << 8) +#define ADC_CCR_DELAY_20 (0xF << 8) +/** Multi ADC mode selection. */ +#define ADC_CCR_MULTI 0x1F +/** All ADCs independent. */ +#define ADC_CCR_MULTI_INDEPENDENT 0x0 +/** Dual mode: combined regular simultaneous/injected simultaneous. */ +#define ADC_CCR_MULTI_DUAL_REG_SIM_INJ_SIM 0x1 +/** Dual mode: combined regular simultaneous/alternate trigger. */ +#define ADC_CCR_MULTI_DUAL_REG_SIM_ALT_TRIG 0x2 +/** Dual mode: injected simultaneous mode only. */ +#define ADC_CCR_MULTI_DUAL_INJ_SIM 0x5 +/** Dual mode: regular simultaneous mode only. */ +#define ADC_CCR_MULTI_DUAL_REG_SIM 0x6 +/** Dual mode: interleaved mode only. */ +#define ADC_CCR_MULTI_DUAL_INTER 0x7 +/** Dual mode: alternate trigger mode only. */ +#define ADC_CCR_MULTI_DUAL_ALT_TRIG 0x9 +/** Triple mode: combined regular simultaneous/injected simultaneous. */ +#define ADC_CCR_MULTI_TRIPLE_REG_SIM_INJ_SIM 0x10 +/** Triple mode: combined regular simultaneous/alternate trigger. */ +#define ADC_CCR_MULTI_TRIPLE_REG_SIM_ALT_TRIG 0x11 +/** Triple mode: injected simultaneous mode only. */ +#define ADC_CCR_MULTI_TRIPLE_INJ_SIM 0x12 +/** Triple mode: regular simultaneous mode only. */ +#define ADC_CCR_MULTI_TRIPLE_REG_SIM 0x15 +/** Triple mode: interleaved mode only. */ +#define ADC_CCR_MULTI_TRIPLE_INTER 0x17 +/** Triple mode: alternate trigger mode only. */ +#define ADC_CCR_MULTI_TRIPLE_ALT_TRIG 0x19 + +/* Common regular data register for dual and triple modes */ + +#define ADC_CDR_DATA2 0xFFFF0000 +#define ADC_CDR_DATA1 0xFFFF + +/* + * Other types + */ + +/** + * @brief STM32F2 external event selectors for regular group + * conversion. + * @see adc_set_extsel() + */ +typedef enum adc_extsel_event { + ADC_EXT_EV_TIM1_CC1 = ADC_CR2_EXTSEL_TIM1_CC1, + ADC_EXT_EV_TIM1_CC2 = ADC_CR2_EXTSEL_TIM1_CC2, + ADC_EXT_EV_TIM1_CC3 = ADC_CR2_EXTSEL_TIM1_CC3, + ADC_EXT_EV_TIM2_CC2 = ADC_CR2_EXTSEL_TIM2_CC2, + ADC_EXT_EV_TIM2_CC3 = ADC_CR2_EXTSEL_TIM2_CC3, + ADC_EXT_EV_TIM2_CC4 = ADC_CR2_EXTSEL_TIM2_CC4, + ADC_EXT_EV_TIM1_TRGO = ADC_CR2_EXTSEL_TIM1_TRGO, + ADC_EXT_EV_TIM3_CC1 = ADC_CR2_EXTSEL_TIM3_CC1, + ADC_EXT_EV_TIM3_TRGO = ADC_CR2_EXTSEL_TIM3_TRGO, + ADC_EXT_EV_TIM4_CC4 = ADC_CR2_EXTSEL_TIM4_CC4, + ADC_EXT_EV_TIM5_CC1 = ADC_CR2_EXTSEL_TIM5_CC1, + ADC_EXT_EV_TIM5_CC2 = ADC_CR2_EXTSEL_TIM5_CC2, + ADC_EXT_EV_TIM5_CC3 = ADC_CR2_EXTSEL_TIM5_CC3, + ADC_EXT_EV_TIM8_CC1 = ADC_CR2_EXTSEL_TIM8_CC1, + ADC_EXT_EV_TIM8_TRGO = ADC_CR2_EXTSEL_TIM8_TRGO, + ADC_EXT_EV_TIM1_EXTI11 = ADC_CR2_EXTSEL_TIM1_EXTI11, +} adc_extsel_event; + +/** + * @brief STM32F2 sample times, in ADC clock cycles. + */ +typedef enum adc_smp_rate { + ADC_SMPR_3, /**< 3 ADC cycles */ + ADC_SMPR_15, /**< 15 ADC cycles */ + ADC_SMPR_28, /**< 28 ADC cycles */ + ADC_SMPR_56, /**< 56 ADC cycles */ + ADC_SMPR_84, /**< 84 ADC cycles */ + ADC_SMPR_112, /**< 112 ADC cycles */ + ADC_SMPR_144, /**< 144 ADC cycles */ + ADC_SMPR_480, /**< 480 ADC cycles */ +} adc_smp_rate; + +/** + * @brief STM32F2 ADC prescalers, as divisors of PCLK2. + */ +typedef enum adc_prescaler { + ADC_PRE_PCLK2_DIV_2 = ADC_CCR_ADCPRE_PCLK2_DIV_2, /** PCLK2 divided by 2 */ + ADC_PRE_PCLK2_DIV_4 = ADC_CCR_ADCPRE_PCLK2_DIV_4, /** PCLK2 divided by 4 */ + ADC_PRE_PCLK2_DIV_6 = ADC_CCR_ADCPRE_PCLK2_DIV_6, /** PCLK2 divided by 6 */ + ADC_PRE_PCLK2_DIV_8 = ADC_CCR_ADCPRE_PCLK2_DIV_8, /** PCLK2 divided by 8 */ +} adc_prescaler; + +#endif diff --git a/libmaple/stm32f2/rules.mk b/libmaple/stm32f2/rules.mk index a46f8d1..5951b94 100644 --- a/libmaple/stm32f2/rules.mk +++ b/libmaple/stm32f2/rules.mk @@ -11,6 +11,7 @@ CFLAGS_$(d) = -I$(d) $(LIBMAPLE_INCLUDES) $(LIBMAPLE_PRIVATE_INCLUDES) -Wall -We sSRCS_$(d) := isrs.S sSRCS_$(d) += vector_table.S +cSRCS_$(d) := adc.c cSRCS_$(d) += fsmc.c cSRCS_$(d) += gpio.c cSRCS_$(d) += rcc.c diff --git a/wirish/boards.cpp b/wirish/boards.cpp index 04b359f..54807d3 100644 --- a/wirish/boards.cpp +++ b/wirish/boards.cpp @@ -54,6 +54,7 @@ static void setup_flash(void); static void setup_clocks(void); static void setup_nvic(void); +static void setup_adcs(void); /* * Exported functions @@ -65,7 +66,7 @@ void init(void) { setup_nvic(); systick_init(SYSTICK_RELOAD_VAL); wirish::priv::board_setup_gpio(); - wirish::priv::board_setup_adc(); + setup_adcs(); wirish::priv::board_setup_timers(); wirish::priv::board_setup_usb(); boardInit(); @@ -124,7 +125,7 @@ static void setup_clocks(void) { // Configure AHBx, APBx, etc. prescalers and the main PLL. wirish::priv::board_setup_clock_prescalers(); - rcc_configure_pll(&wirish::priv::board_pll_cfg); + rcc_configure_pll(&wirish::priv::w_board_pll_cfg); // Enable the PLL, and wait until it's ready. rcc_turn_on_clk(RCC_CLK_PLL); @@ -146,3 +147,13 @@ static void setup_nvic(void) { #error "You must select a base address for the vector table." #endif } + +static void adc_default_config(const adc_dev *dev) { + adc_enable_single_swstart(dev); + adc_set_sample_rate(dev, wirish::priv::w_adc_smp); +} + +static void setup_adcs(void) { + adc_set_prescaler(wirish::priv::w_adc_pre); + adc_foreach(adc_default_config); +} diff --git a/wirish/boards_private.h b/wirish/boards_private.h index a4101c9..e32f298 100644 --- a/wirish/boards_private.h +++ b/wirish/boards_private.h @@ -28,11 +28,18 @@ * @file wirish/boards_private.h * @author Marti Bolivar * @brief Private board support header. + * + * This file declares chip-specific variables and functions which + * determine how init() behaves. It is not part of the public Wirish + * API, and can change without notice. */ #ifndef _WIRISH_BOARDS_PRIVATE_H_ #define _WIRISH_BOARDS_PRIVATE_H_ +#include +#include + namespace wirish { namespace priv { @@ -40,7 +47,9 @@ namespace wirish { * Chip-specific initialization data */ - extern rcc_pll_cfg board_pll_cfg; + extern rcc_pll_cfg w_board_pll_cfg; + extern adc_prescaler w_adc_pre; + extern adc_smp_rate w_adc_smp; /* * Chip-specific initialization routines and helper functions. @@ -49,7 +58,6 @@ namespace wirish { void board_reset_pll(void); void board_setup_clock_prescalers(void); void board_setup_gpio(void); - void board_setup_adc(void); void board_setup_timers(void); void board_setup_usb(void); diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp index 4ee292a..8e16009 100644 --- a/wirish/stm32f1/boards_setup.cpp +++ b/wirish/stm32f1/boards_setup.cpp @@ -28,11 +28,15 @@ * @file wirish/stm32f1/boards_setup.cpp * @author Marti Bolivar * @brief STM32F1 chip setup. + * + * This file controls how init() behaves on the STM32F1. Be very + * careful when changing anything here. Many of these values depend + * upon each other. */ -#include +#include "boards_private.h" + #include -#include #include #include @@ -45,12 +49,11 @@ namespace wirish { namespace priv { static stm32f1_rcc_pll_data pll_data = {RCC_PLLMUL_9}; - rcc_pll_cfg board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; + rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; + adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_6; + adc_smp_rate w_adc_smp = ADC_SMPR_55_5; -#if 0 - static void config_adc(const adc_dev* dev); static void config_timer(timer_dev*); -#endif void board_reset_pll(void) { // TODO @@ -69,17 +72,8 @@ namespace wirish { afio_init(); } - void board_setup_adc(void) { -#if 0 - rcc_set_prescaler(RCC_PRESCALER_ADC, RCC_ADCPRE_PCLK_DIV_6); - adc_foreach(config_adc); -#endif - } - void board_setup_timers(void) { -#if 0 timer_foreach(config_timer); -#endif } void board_setup_usb(void) { @@ -92,19 +86,8 @@ namespace wirish { * Auxiliary routines */ -#if 0 - static void config_adc(const adc_dev *dev) { - adc_init(dev); - - adc_set_extsel(dev, ADC_SWSTART); - adc_set_exttrig(dev, true); - - adc_enable(dev); - adc_calibrate(dev); - adc_set_sample_rate(dev, ADC_SMPR_55_5); - } - static void config_timer(timer_dev *dev) { +#if 0 timer_adv_reg_map *regs = (dev->regs).adv; const uint16 full_overflow = 0xFFFF; const uint16 half_duty = 0x8FFF; @@ -135,7 +118,7 @@ namespace wirish { } timer_resume(dev); - } #endif + } } } diff --git a/wirish/stm32f2/boards_setup.cpp b/wirish/stm32f2/boards_setup.cpp index b3c690c..e1bf1fd 100644 --- a/wirish/stm32f2/boards_setup.cpp +++ b/wirish/stm32f2/boards_setup.cpp @@ -28,11 +28,18 @@ * @file wirish/stm32f2/boards_setup.cpp * @author Marti Bolivar * @brief STM32F2 chip setup. + * + * This file controls how init() behaves on the STM32F2. Be very + * careful when changing anything here. Many of these values depend + * upon each other. */ -#include +#include "boards_private.h" + #include +#include +// PLL configuration for 25 MHz external oscillator --> 120 MHz SYSCLK. #define PLL_Q 5 #define PLL_P 2 #define PLL_N 240 @@ -41,7 +48,18 @@ static stm32f2_rcc_pll_data pll_data = {PLL_Q, PLL_P, PLL_N, PLL_M}; namespace wirish { namespace priv { - rcc_pll_cfg board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; + // PLL clocked off of HSE, with above configuration data. + rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; + // As f_APB2 = 60 MHz (see board_setup_clock_prescalers), + // we need f_ADC = f_PCLK2 / 2 to get the (maximum) + // f_ADC = 30 MHz. + adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_2; + // With clocks as specified here (i.e. f_ADC = 30 MHz), this + // ADC sample rate allows for error less than 1/4 LSB with a + // 50 KOhm input impedance, assuming an internal sample and + // hold capacitance C_ADC at most 8.8 pF. See Equation 1 and + // Table 61 in the F2 datasheet for more details. + adc_smp_rate w_adc_smp = ADC_SMPR_144; void board_reset_pll(void) { // Set PLLCFGR to its reset value. @@ -49,8 +67,13 @@ namespace wirish { } void board_setup_clock_prescalers(void) { + // With f_SYSCLK = 120 MHz (as determined by board_pll_cfg), + // + // f_AHB = f_SYSCLK / 1 = 120 MHz rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1); + // f_APB1 = f_AHB / 4 = 30 MHz rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_4); + // f_APB2 = f_AHB / 2 = 60 MHz rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_2); } @@ -58,10 +81,6 @@ namespace wirish { gpio_init_all(); } - void board_setup_adc(void) { - // TODO - } - void board_setup_timers(void) { // TODO } @@ -72,4 +91,3 @@ namespace wirish { } } - -- cgit v1.2.3 From f3e5111cff8d9f91dd5279df5165c386d77fed2e Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Mon, 23 Apr 2012 13:45:15 -0400 Subject: stm32f1 boards_setup.cpp: Allow overriding the PLL multiplier. Allow to override the PLL multiplier by defining BOARD_RCC_PLLMUL. This should be useful for e.g. value line MCUs, which have slower clocks. It's also probably useful for people who have external oscillators different from the 8 MHz ones we use on all of our boards. Signed-off-by: Marti Bolivar --- wirish/stm32f1/boards_setup.cpp | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'wirish/stm32f1') diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp index 8e16009..74c0e79 100644 --- a/wirish/stm32f1/boards_setup.cpp +++ b/wirish/stm32f1/boards_setup.cpp @@ -42,13 +42,22 @@ #include +// Allow boards to provide a PLL multiplier. This is useful for +// e.g. STM32F100 value line MCUs, which use slower multipliers. +// (We're leaving the default to RCC_PLLMUL_9 for now, since that +// works for F103 performance line MCUs, which is all that LeafLabs +// currently officially supports). +#ifndef BOARD_RCC_PLLMUL +#define BOARD_RCC_PLLMUL RCC_PLLMUL_9 +#endif + /* FIXME: Reintroduce all "#if 0"'ed blocks once libmaple provides * these definitions again. */ namespace wirish { namespace priv { - static stm32f1_rcc_pll_data pll_data = {RCC_PLLMUL_9}; + static stm32f1_rcc_pll_data pll_data = {BOARD_RCC_PLLMUL}; rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_6; adc_smp_rate w_adc_smp = ADC_SMPR_55_5; -- cgit v1.2.3 From 9c8b3225efd5ee816ad840ea97ba7bb92ff17941 Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Tue, 24 Apr 2012 05:01:28 -0400 Subject: stm32.h: Various updates, mostly to help STM32F1 line support. Add STM32_HAVE_USB feature test macro requirement for . This will let us test if we've got a USB peripheral. wirish/stm32f1/boards_setup.cpp is set up to use this when turning on USB CDC ACM support at init() time. Rework the STM32F1 to make it easier to support the various lines that subdivide that series. We don't really support anything besides performance line yet, but there's been enough enthusiasm for value and connectivity line support in the past that these hooks seem worth adding. This means adding an STM32_F1_LINE macro and STM32_F1_LINE_[PERFORMANCE,VALUE,ACCESS,CONNECTIVITY] macros for values that STM32_F1_LINE can take, and generalizing the rest of the file to begin taking this into account. Some TODOs remain, but filling these in is the responsibility of future libmaple porting efforts. One pleasant consequence of the F1 stm32.h rework is that the build system no longer has to tell us what density of F103 we're building for, so remove that from the relevant support/make/board-includes/ files. Add some tweaks to and the STM32F2 stm32.h header to make sure this went through properly, and continues to go through properly in the future. --- libmaple/include/libmaple/stm32.h | 12 +++ libmaple/stm32f1/include/series/stm32.h | 100 ++++++++++++++++------- libmaple/stm32f2/include/series/stm32.h | 1 + support/make/board-includes/maple.mk | 2 - support/make/board-includes/maple_RET6.mk | 2 - support/make/board-includes/maple_mini.mk | 2 - support/make/board-includes/maple_native.mk | 2 - support/make/board-includes/olimex_stm32_h103.mk | 2 - wirish/stm32f1/boards_setup.cpp | 2 + 9 files changed, 84 insertions(+), 41 deletions(-) (limited to 'wirish/stm32f1') diff --git a/libmaple/include/libmaple/stm32.h b/libmaple/include/libmaple/stm32.h index d6f3304..d53af3a 100644 --- a/libmaple/include/libmaple/stm32.h +++ b/libmaple/include/libmaple/stm32.h @@ -58,9 +58,21 @@ extern "C" { * * - STM32_HAVE_FSMC: 1 if the MCU has the FSMC peripheral, and 0 * otherwise. + * + * - STM32_HAVE_USB: 1 if the MCU has a USB peripheral, and 0 + * otherwise. */ #include +/* Ensure the series header isn't broken. */ +#if (!defined(STM32_PCLK1) || !defined(STM32_PCLK2) || \ + !defined(STM32_MCU_SERIES) || !defined(STM32_NR_INTERRUPTS) || \ + !defined(STM32_NR_GPIO_PORTS) || !defined(STM32_DELAY_US_MULT) || \ + !defined(STM32_SRAM_END) || !defined(STM32_HAVE_FSMC) || \ + !defined(STM32_HAVE_USB)) +#error "Bad STM32F1 configuration. Check header for your MCU." +#endif + #ifdef __DOXYGEN_PREDEFINED_HACK /* diff --git a/libmaple/stm32f1/include/series/stm32.h b/libmaple/stm32f1/include/series/stm32.h index c122df0..eaf9287 100644 --- a/libmaple/stm32f1/include/series/stm32.h +++ b/libmaple/stm32f1/include/series/stm32.h @@ -38,6 +38,17 @@ extern "C" { #define STM32_MCU_SERIES STM32_SERIES_F1 +/* The STM32F1 series is subdivided into "lines". libmaple currently + * officially supports STM32F103 performance line MCUs (see the + * MCU-specific value section below). + * + * You can use these F1 line defines if porting libmaple to support + * MCUs on other lines. */ +#define STM32_F1_LINE_PERFORMANCE 0 +#define STM32_F1_LINE_VALUE 1 +#define STM32_F1_LINE_ACCESS 2 +#define STM32_F1_LINE_CONNECTIVITY 3 + /* * MCU-specific values. * @@ -48,23 +59,31 @@ extern "C" { */ #if defined(MCU_STM32F103RB) +# define STM32_F1_LINE STM32_F1_LINE_PERFORMANCE # define STM32_NR_GPIO_PORTS 4 # define STM32_SRAM_END ((void*)0x20005000) +# define STM32_MEDIUM_DENSITY #elif defined(MCU_STM32F103ZE) +# define STM32_F1_LINE STM32_F1_LINE_PERFORMANCE # define STM32_NR_GPIO_PORTS 7 # define STM32_SRAM_END ((void*)0x20010000) +# define STM32_HIGH_DENSITY #elif defined(MCU_STM32F103CB) +# define STM32_F1_LINE STM32_F1_LINE_PERFORMANCE /* This STM32_NR_GPIO_PORTS is not strictly true, but only pins 0 * and exist, and they're used for OSC (e.g. on e.g. LeafLabs * Maple Mini), so we'll live with this for now. */ # define STM32_NR_GPIO_PORTS 3 # define STM32_SRAM_END ((void*)0x20005000) +# define STM32_MEDIUM_DENSITY #elif defined(MCU_STM32F103RE) +# define STM32_F1_LINE STM32_F1_LINE_PERFORMANCE # define STM32_NR_GPIO_PORTS 4 # define STM32_SRAM_END ((void*)0x20010000) +# define STM32_HIGH_DENSITY #else #error "Unrecognized STM32F1 MCU, or no MCU specified. Add something like " \ @@ -72,46 +91,65 @@ extern "C" { #endif /* - * Clock configuration. + * Derived values. */ -#ifndef STM32_PCLK1 -#define STM32_PCLK1 36000000U -#endif +#if STM32_F1_LINE == STM32_F1_LINE_PERFORMANCE + /* All supported performance line MCUs have a USB peripheral */ +# define STM32_HAVE_USB 1 + +# ifdef STM32_MEDIUM_DENSITY +# define STM32_NR_INTERRUPTS 43 +# define STM32_HAVE_FSMC 0 +# elif defined(STM32_HIGH_DENSITY) +# define STM32_NR_INTERRUPTS 60 +# define STM32_HAVE_FSMC 1 +# endif + +#elif STM32_F1_LINE == STM32_F1_LINE_VALUE + /* Value line MCUs don't have USB peripherals. */ +# define STM32_HAVE_USB 0 + +# ifdef STM32_MEDIUM_DENSITY +# define STM32_NR_INTERRUPTS 56 +# define STM32_HAVE_FSMC 0 +# elif defined(STM32_HIGH_DENSITY) + /* 61 interrupts here counts the possibility for a remapped + * DMA2 channel 5 IRQ occurring at NVIC index 60. */ +# define STM32_NR_INTERRUPTS 61 +# define STM32_HAVE_FSMC 1 +# endif -#ifndef STM32_PCLK2 -#define STM32_PCLK2 72000000U -#endif - -#ifndef STM32_DELAY_US_MULT -#define STM32_DELAY_US_MULT 12 /* FIXME: value is incorrect. */ #endif /* - * Density-specific values. + * Clock configuration. + * + * We've currently got values for F103 MCUs operating at the fastest + * possible speeds. + * + * You can patch these for your line, MCU, clock configuration, + * etc. here or by setting cflags when compiling libmaple. */ -#ifdef STM32_MEDIUM_DENSITY -# ifndef STM32_NR_INTERRUPTS -# define STM32_NR_INTERRUPTS 43 -# endif - -# ifndef STM32_HAVE_FSMC -# define STM32_HAVE_FSMC 0 -# endif - -#elif defined(STM32_HIGH_DENSITY) -# ifndef STM32_NR_INTERRUPTS -# define STM32_NR_INTERRUPTS 60 -# endif - -# ifndef STM32_HAVE_FSMC -# define STM32_HAVE_FSMC 1 -# endif +#if STM32_F1_LINE == STM32_F1_LINE_PERFORMANCE +# ifndef STM32_PCLK1 +# define STM32_PCLK1 36000000U +# endif +# ifndef STM32_PCLK2 +# define STM32_PCLK2 72000000U +# endif +# ifndef STM32_DELAY_US_MULT +# define STM32_DELAY_US_MULT 12 /* FIXME: value is incorrect. */ +# endif +#elif STM32_F1_LINE == STM32_F1_LINE_VALUE /* TODO */ +#elif STM32_F1_LINE == STM32_F1_LINE_ACCESS /* TODO */ +#elif STM32_F1_LINE == STM32_F1_LINE_CONNECTIVITY /* TODO */ +#endif -#else -#error "Unsupported STM32F1 density, or no density specified. Add something " \ - "like -DSTM32_MEDIUM_DENSITY to your compiler arguments." +/* Make sure we have the F1-specific defines we need. */ +#if !defined(STM32_F1_LINE) +#error "Bad STM32F1 configuration. Check STM32F1 header." #endif #ifdef __cplusplus diff --git a/libmaple/stm32f2/include/series/stm32.h b/libmaple/stm32f2/include/series/stm32.h index 222608d..5ab4c56 100644 --- a/libmaple/stm32f2/include/series/stm32.h +++ b/libmaple/stm32f2/include/series/stm32.h @@ -59,6 +59,7 @@ extern "C" { #define STM32_MCU_SERIES STM32_SERIES_F2 #define STM32_NR_INTERRUPTS 81 #define STM32_HAVE_FSMC 1 +#define STM32_HAVE_USB 1 #if defined(MCU_STM32F207IC) || defined(MCU_STM32F207IG) # define STM32_NR_GPIO_PORTS 9 diff --git a/support/make/board-includes/maple.mk b/support/make/board-includes/maple.mk index a84f0ac..d31ad83 100644 --- a/support/make/board-includes/maple.mk +++ b/support/make/board-includes/maple.mk @@ -2,6 +2,4 @@ MCU := STM32F103RB PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOA ERROR_LED_PIN := 5 -DENSITY := STM32_MEDIUM_DENSITY -TARGET_FLAGS += -D$(DENSITY) MCU_SERIES := stm32f1 diff --git a/support/make/board-includes/maple_RET6.mk b/support/make/board-includes/maple_RET6.mk index 8bd9b90..d06f068 100644 --- a/support/make/board-includes/maple_RET6.mk +++ b/support/make/board-includes/maple_RET6.mk @@ -2,6 +2,4 @@ MCU := STM32F103RE PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOA ERROR_LED_PIN := 5 -DENSITY := STM32_HIGH_DENSITY -TARGET_FLAGS += -D$(DENSITY) MCU_SERIES := stm32f1 diff --git a/support/make/board-includes/maple_mini.mk b/support/make/board-includes/maple_mini.mk index 4a3e2ab..835adc3 100644 --- a/support/make/board-includes/maple_mini.mk +++ b/support/make/board-includes/maple_mini.mk @@ -2,6 +2,4 @@ MCU := STM32F103CB PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOB ERROR_LED_PIN := 1 -DENSITY := STM32_MEDIUM_DENSITY -TARGET_FLAGS += -D$(DENSITY) MCU_SERIES := stm32f1 diff --git a/support/make/board-includes/maple_native.mk b/support/make/board-includes/maple_native.mk index cd07c21..3e88e7b 100644 --- a/support/make/board-includes/maple_native.mk +++ b/support/make/board-includes/maple_native.mk @@ -2,6 +2,4 @@ MCU := STM32F103ZE PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOC ERROR_LED_PIN := 15 -DENSITY := STM32_HIGH_DENSITY -TARGET_FLAGS += -D$(DENSITY) MCU_SERIES := stm32f1 diff --git a/support/make/board-includes/olimex_stm32_h103.mk b/support/make/board-includes/olimex_stm32_h103.mk index 1d84cc2..96d6976 100644 --- a/support/make/board-includes/olimex_stm32_h103.mk +++ b/support/make/board-includes/olimex_stm32_h103.mk @@ -2,6 +2,4 @@ MCU := STM32F103RB PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOC ERROR_LED_PIN := 12 -DENSITY := STM32_MEDIUM_DENSITY -TARGET_FLAGS += -D$(DENSITY) MCU_SERIES := stm32f1 diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp index 74c0e79..a71661d 100644 --- a/wirish/stm32f1/boards_setup.cpp +++ b/wirish/stm32f1/boards_setup.cpp @@ -87,7 +87,9 @@ namespace wirish { void board_setup_usb(void) { #if 0 +# if STM32_HAVE_USB usb_cdcacm_enable(BOARD_USB_DISC_DEV, BOARD_USB_DISC_BIT); +# endif #endif } -- cgit v1.2.3 From 014f9a0545556f2e0d4fb3faba5607e59e1e97ad Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Thu, 31 May 2012 17:17:06 -0400 Subject: examples/blinky.cpp works on F2. Only OUTPUT mode is tested; any other modes might work, but no guarantees. Bring back: - wirish/wirish_digital.cpp - wirish/cxxabi-compat.cpp - wirish/wirish_time.cpp Add new: - wirish/stm32f1/wirish_digital.cpp - wirish/stm32f2/wirish_digital.cpp Move pinMode() from wirish/wirish_digital.cpp into the file by the same basename in wirish/stm32f1. This implementation is tied to F1. Add an F2 implementation in wirish/stm32f2/wirish_digital.cpp. Signed-off-by: Marti Bolivar --- wirish/rules.mk | 14 ++-- wirish/stm32f1/wirish_digital.cpp | 89 ++++++++++++++++++++++++++ wirish/stm32f2/wirish_digital.cpp | 130 ++++++++++++++++++++++++++++++++++++++ wirish/wirish_digital.cpp | 54 +--------------- 4 files changed, 227 insertions(+), 60 deletions(-) create mode 100644 wirish/stm32f1/wirish_digital.cpp create mode 100644 wirish/stm32f2/wirish_digital.cpp (limited to 'wirish/stm32f1') diff --git a/wirish/rules.mk b/wirish/rules.mk index afd78e2..5e00a5f 100644 --- a/wirish/rules.mk +++ b/wirish/rules.mk @@ -21,6 +21,12 @@ CFLAGS_$(d) := $(LIBMAPLE_INCLUDES) $(WIRISH_INCLUDES) -I$(d) sSRCS_$(d) := start.S cSRCS_$(d) := start_c.c cppSRCS_$(d) := boards.cpp +cppSRCS_$(d) += cxxabi-compat.cpp +cppSRCS_$(d) += wirish_digital.cpp +cppSRCS_$(d) += wirish_time.cpp +cppSRCS_$(d) += $(MCU_SERIES)/boards_setup.cpp +cppSRCS_$(d) += $(MCU_SERIES)/wirish_digital.cpp +cppSRCS_$(d) += $(WIRISH_BOARD_PATH)/board.cpp # TODO: test these on F2 and put them back in: # cppSRCS_$(d) := wirish_math.cpp \ # Print.cpp \ @@ -28,16 +34,10 @@ cppSRCS_$(d) := boards.cpp # HardwareSPI.cpp \ # HardwareTimer.cpp \ # usb_serial.cpp \ -# cxxabi-compat.cpp \ # wirish_shift.cpp \ # wirish_analog.cpp \ -# wirish_time.cpp \ # pwm.cpp \ -# ext_interrupts.cpp \ -# wirish_digital.cpp -# TODO: Put this back in once we've got the necessary libmaple support back. -cppSRCS_$(d) += $(WIRISH_BOARD_PATH)/board.cpp -cppSRCS_$(d) += $(MCU_SERIES)/boards_setup.cpp +# ext_interrupts.cpp sFILES_$(d) := $(sSRCS_$(d):%=$(d)/%) cFILES_$(d) := $(cSRCS_$(d):%=$(d)/%) diff --git a/wirish/stm32f1/wirish_digital.cpp b/wirish/stm32f1/wirish_digital.cpp new file mode 100644 index 0000000..8371b0e --- /dev/null +++ b/wirish/stm32f1/wirish_digital.cpp @@ -0,0 +1,89 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2010 Perry Hung. + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/* + * STM32F1 implementations for basic GPIO functionality. + */ + +#include + +#include +#include + +#include + +void pinMode(uint8 pin, WiringPinMode mode) { + gpio_pin_mode outputMode; + bool pwm = false; + + if (pin >= BOARD_NR_GPIO_PINS) { + return; + } + + switch(mode) { + case OUTPUT: + outputMode = GPIO_OUTPUT_PP; + break; + case OUTPUT_OPEN_DRAIN: + outputMode = GPIO_OUTPUT_OD; + break; + case INPUT: + case INPUT_FLOATING: + outputMode = GPIO_INPUT_FLOATING; + break; + case INPUT_ANALOG: + outputMode = GPIO_INPUT_ANALOG; + break; + case INPUT_PULLUP: + outputMode = GPIO_INPUT_PU; + break; + case INPUT_PULLDOWN: + outputMode = GPIO_INPUT_PD; + break; + case PWM: + outputMode = GPIO_AF_OUTPUT_PP; + pwm = true; + break; + case PWM_OPEN_DRAIN: + outputMode = GPIO_AF_OUTPUT_OD; + pwm = true; + break; + default: + ASSERT(0); + return; + } + + gpio_set_mode(PIN_MAP[pin].gpio_device, PIN_MAP[pin].gpio_bit, outputMode); + + if (PIN_MAP[pin].timer_device != NULL) { + /* Enable/disable timer channels if we're switching into or + * out of PWM. */ + timer_set_mode(PIN_MAP[pin].timer_device, + PIN_MAP[pin].timer_channel, + pwm ? TIMER_PWM : TIMER_DISABLED); + } +} diff --git a/wirish/stm32f2/wirish_digital.cpp b/wirish/stm32f2/wirish_digital.cpp new file mode 100644 index 0000000..a67111d --- /dev/null +++ b/wirish/stm32f2/wirish_digital.cpp @@ -0,0 +1,130 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/* + * STM32F2 implementations for basic GPIO functionality. + */ + +#include + +#include +#include + +#include + +void pinMode(uint8 pin, WiringPinMode w_mode) { + if (pin >= BOARD_NR_GPIO_PINS) { + return; + } + + gpio_pin_mode mode; + // People always do the silly pin-toggle speed benchmark, so let's + // accomodate them: + unsigned flags = GPIO_MODEF_SPEED_HIGH; + bool pwm = false; + switch(w_mode) { + case OUTPUT: + mode = GPIO_MODE_OUTPUT; + break; + case OUTPUT_OPEN_DRAIN: + mode = GPIO_MODE_OUTPUT; + flags |= GPIO_MODEF_TYPE_OD; + break; + case INPUT: + case INPUT_FLOATING: + mode = GPIO_MODE_INPUT; + break; + case INPUT_ANALOG: + mode = GPIO_MODE_ANALOG; + break; + case INPUT_PULLUP: + mode = GPIO_MODE_INPUT; + flags |= GPIO_MODEF_PUPD_PU; + break; + case INPUT_PULLDOWN: + mode = GPIO_MODE_INPUT; + flags |= GPIO_MODEF_PUPD_PD; + break; + case PWM: + mode = GPIO_MODE_AF; + pwm = true; + break; + case PWM_OPEN_DRAIN: + mode = GPIO_MODE_AF; + flags |= GPIO_MODEF_TYPE_OD; + pwm = true; + break; + default: + ASSERT(0); // Can't happen + return; + } + + const stm32_pin_info *info = &PIN_MAP[pin]; + + if (pwm) { + /* If enabling PWM, tell the timer to do PWM, and tell the pin + * to listen to the right timer. */ + ASSERT(info->timer_device != NULL); + if (info->timer_device == NULL) { + return; + } + gpio_af timer_af; + /* TODO make this code a convenience + * routine for series that support GPIO alternate + * functions. */ + switch(info->timer_device->clk_id) { + case RCC_TIMER1: // fall-through + case RCC_TIMER2: + timer_af = GPIO_AF_TIM_1_2; + break; + case RCC_TIMER3: // fall-through + case RCC_TIMER4: // ... + case RCC_TIMER5: + timer_af = GPIO_AF_TIM_3_4_5; + break; + /* Timers 6 and 7 don't have any capture/compare, so they + * can't do PWM (and in fact have no AF values). */ + case RCC_TIMER8: // fall-through + case RCC_TIMER9: // ... + case RCC_TIMER10: // ... + case RCC_TIMER11: + timer_af = GPIO_AF_TIM_8_9_10_11; + break; + case RCC_TIMER12: // fall-through + case RCC_TIMER13: // ... + case RCC_TIMER14: + timer_af = GPIO_AF_CAN_1_2_TIM_12_13_14; + break; + default: + ASSERT(0); // Can't happen + return; + } + timer_set_mode(info->timer_device, info->timer_channel, TIMER_PWM); + gpio_set_af(info->gpio_device, info->gpio_bit, timer_af); + } else { + gpio_set_modef(info->gpio_device, info->gpio_bit, mode, flags); + } +} diff --git a/wirish/wirish_digital.cpp b/wirish/wirish_digital.cpp index 6be1a29..a7f10cd 100644 --- a/wirish/wirish_digital.cpp +++ b/wirish/wirish_digital.cpp @@ -2,6 +2,7 @@ * The MIT License * * Copyright (c) 2010 Perry Hung. + * Copyright (c) 2012 LeafLabs, LLC. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation @@ -36,59 +37,6 @@ #include #include -void pinMode(uint8 pin, WiringPinMode mode) { - gpio_pin_mode outputMode; - bool pwm = false; - - if (pin >= BOARD_NR_GPIO_PINS) { - return; - } - - switch(mode) { - case OUTPUT: - outputMode = GPIO_OUTPUT_PP; - break; - case OUTPUT_OPEN_DRAIN: - outputMode = GPIO_OUTPUT_OD; - break; - case INPUT: - case INPUT_FLOATING: - outputMode = GPIO_INPUT_FLOATING; - break; - case INPUT_ANALOG: - outputMode = GPIO_INPUT_ANALOG; - break; - case INPUT_PULLUP: - outputMode = GPIO_INPUT_PU; - break; - case INPUT_PULLDOWN: - outputMode = GPIO_INPUT_PD; - break; - case PWM: - outputMode = GPIO_AF_OUTPUT_PP; - pwm = true; - break; - case PWM_OPEN_DRAIN: - outputMode = GPIO_AF_OUTPUT_OD; - pwm = true; - break; - default: - ASSERT(0); - return; - } - - gpio_set_mode(PIN_MAP[pin].gpio_device, PIN_MAP[pin].gpio_bit, outputMode); - - if (PIN_MAP[pin].timer_device != NULL) { - /* Enable/disable timer channels if we're switching into or - * out of PWM. */ - timer_set_mode(PIN_MAP[pin].timer_device, - PIN_MAP[pin].timer_channel, - pwm ? TIMER_PWM : TIMER_DISABLED); - } -} - - uint32 digitalRead(uint8 pin) { if (pin >= BOARD_NR_GPIO_PINS) { return 0; -- cgit v1.2.3 From 1637300f8f751ccc17ff1a2f383c7fca902c0f8f Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Sat, 2 Jun 2012 21:02:34 -0400 Subject: Bring timer initialization back to init(). Turns out the F1 code was pretty portable after all, so take it from the F1 boards_setup.cpp and stick it back into boards.cpp. The only change needed was to add a call to the newly-minted timer_has_cc_channel() (and this is necessary on F103 XL-density, anyway). Also assert LeafLabs copyright in boards.cpp. We really need to do this throughout the library; it's basically been rewritten since Perry. Signed-off-by: Marti Bolivar --- wirish/boards.cpp | 43 ++++++++++++++++++++++++++++++++++++++- wirish/boards_private.h | 1 - wirish/stm32f1/boards_setup.cpp | 45 ----------------------------------------- wirish/stm32f2/boards_setup.cpp | 6 +----- 4 files changed, 43 insertions(+), 52 deletions(-) (limited to 'wirish/stm32f1') diff --git a/wirish/boards.cpp b/wirish/boards.cpp index 51ff50e..0faabfd 100644 --- a/wirish/boards.cpp +++ b/wirish/boards.cpp @@ -2,6 +2,7 @@ * The MIT License * * Copyright (c) 2010 Perry Hung. + * Copyright (c) 2011, 2012 LeafLabs, LLC. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation @@ -55,6 +56,7 @@ static void setup_flash(void); static void setup_clocks(void); static void setup_nvic(void); static void setup_adcs(void); +static void setup_timers(void); /* * Exported functions @@ -67,7 +69,7 @@ void init(void) { systick_init(SYSTICK_RELOAD_VAL); wirish::priv::board_setup_gpio(); setup_adcs(); - wirish::priv::board_setup_timers(); + setup_timers(); wirish::priv::board_setup_usb(); boardInit(); } @@ -157,3 +159,42 @@ static void setup_adcs(void) { adc_set_prescaler(wirish::priv::w_adc_pre); adc_foreach(adc_default_config); } + +static void timer_default_config(timer_dev *dev) { + timer_adv_reg_map *regs = (dev->regs).adv; + const uint16 full_overflow = 0xFFFF; + const uint16 half_duty = 0x8FFF; + + timer_init(dev); + timer_pause(dev); + + regs->CR1 = TIMER_CR1_ARPE; + regs->PSC = 1; + regs->SR = 0; + regs->DIER = 0; + regs->EGR = TIMER_EGR_UG; + switch (dev->type) { + case TIMER_ADVANCED: + regs->BDTR = TIMER_BDTR_MOE | TIMER_BDTR_LOCK_OFF; + // fall-through + case TIMER_GENERAL: + timer_set_reload(dev, full_overflow); + for (uint8 channel = 1; channel <= 4; channel++) { + if (timer_has_cc_channel(dev, channel)) { + timer_set_compare(dev, channel, half_duty); + timer_oc_set_mode(dev, channel, TIMER_OC_MODE_PWM_1, + TIMER_OC_PE); + } + } + // fall-through + case TIMER_BASIC: + break; + } + + timer_generate_update(dev); + timer_resume(dev); +} + +static void setup_timers(void) { + timer_foreach(timer_default_config); +} diff --git a/wirish/boards_private.h b/wirish/boards_private.h index e32f298..cdac844 100644 --- a/wirish/boards_private.h +++ b/wirish/boards_private.h @@ -58,7 +58,6 @@ namespace wirish { void board_reset_pll(void); void board_setup_clock_prescalers(void); void board_setup_gpio(void); - void board_setup_timers(void); void board_setup_usb(void); } diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp index a71661d..423e5ec 100644 --- a/wirish/stm32f1/boards_setup.cpp +++ b/wirish/stm32f1/boards_setup.cpp @@ -62,8 +62,6 @@ namespace wirish { adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_6; adc_smp_rate w_adc_smp = ADC_SMPR_55_5; - static void config_timer(timer_dev*); - void board_reset_pll(void) { // TODO } @@ -81,54 +79,11 @@ namespace wirish { afio_init(); } - void board_setup_timers(void) { - timer_foreach(config_timer); - } - void board_setup_usb(void) { #if 0 # if STM32_HAVE_USB usb_cdcacm_enable(BOARD_USB_DISC_DEV, BOARD_USB_DISC_BIT); # endif -#endif - } - - /* - * Auxiliary routines - */ - - static void config_timer(timer_dev *dev) { -#if 0 - timer_adv_reg_map *regs = (dev->regs).adv; - const uint16 full_overflow = 0xFFFF; - const uint16 half_duty = 0x8FFF; - - timer_init(dev); - timer_pause(dev); - - regs->CR1 = TIMER_CR1_ARPE; - regs->PSC = 1; - regs->SR = 0; - regs->DIER = 0; - regs->EGR = TIMER_EGR_UG; - - switch (dev->type) { - case TIMER_ADVANCED: - regs->BDTR = TIMER_BDTR_MOE | TIMER_BDTR_LOCK_OFF; - // fall-through - case TIMER_GENERAL: - timer_set_reload(dev, full_overflow); - - for (int channel = 1; channel <= 4; channel++) { - timer_set_compare(dev, channel, half_duty); - timer_oc_set_mode(dev, channel, TIMER_OC_MODE_PWM_1, TIMER_OC_PE); - } - // fall-through - case TIMER_BASIC: - break; - } - - timer_resume(dev); #endif } } diff --git a/wirish/stm32f2/boards_setup.cpp b/wirish/stm32f2/boards_setup.cpp index e1bf1fd..9832bb7 100644 --- a/wirish/stm32f2/boards_setup.cpp +++ b/wirish/stm32f2/boards_setup.cpp @@ -81,12 +81,8 @@ namespace wirish { gpio_init_all(); } - void board_setup_timers(void) { - // TODO - } - void board_setup_usb(void) { - // TODO + // Nothing to do. } } -- cgit v1.2.3 From 378c3a70f81ddfbbddf3656977f81b7dfd8f96cd Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Sun, 3 Jun 2012 06:00:41 -0400 Subject: Slightly improve and generify the USB infrastructure. The good news is that and did turn out generic enough in what they specify to go on unchanged. However, we can't just go on assuming that there's USB just because we're on an F1. Now that there's value line in the tree, we need to be more careful (value line F1s don't have USB peripherals). To that end, make all the F1 board-includes/*.mk files specify what line their MCU is with an MCU_F1_LINE variable. Use that to hack libmaple/usb/rules.mk so we only try to build the USB module under appropriate circumstances. While we're at it, add a vector_symbols.inc for value line MCUs under support/ld/. We need this to get the target-config.mk modifications implied by the addition of MCU_F1_LINE. We'll fix up some other performance-line-isms under libmaple/stm32f1 in a separate commit. Also in libmaple/usb/: - Move everything into a new stm32f1 directory. Due to aforementioned rules.mk hacks, there is no immediate need for an stm32f2 directory (USB support doesn't exist there). - Update the README for style and content. Signed-off-by: Marti Bolivar --- Makefile | 2 +- libmaple/include/libmaple/usb.h | 2 +- libmaple/usb/README | 69 +- libmaple/usb/rules.mk | 27 +- libmaple/usb/stm32f1/usb.c | 381 +++++++++++ libmaple/usb/stm32f1/usb_cdcacm.c | 762 +++++++++++++++++++++ libmaple/usb/stm32f1/usb_descriptors.h | 148 ++++ libmaple/usb/stm32f1/usb_lib_globals.h | 55 ++ libmaple/usb/stm32f1/usb_reg_map.c | 79 +++ libmaple/usb/stm32f1/usb_reg_map.h | 433 ++++++++++++ libmaple/usb/usb.c | 381 ----------- libmaple/usb/usb_cdcacm.c | 762 --------------------- libmaple/usb/usb_descriptors.h | 148 ---- libmaple/usb/usb_lib_globals.h | 55 -- libmaple/usb/usb_reg_map.c | 79 --- libmaple/usb/usb_reg_map.h | 433 ------------ .../stm32/series/stm32f1/value/vector_symbols.inc | 78 +++ support/make/board-includes/VLDiscovery.mk | 1 + support/make/board-includes/maple.mk | 1 + support/make/board-includes/maple_RET6.mk | 1 + support/make/board-includes/maple_mini.mk | 1 + support/make/board-includes/maple_native.mk | 1 + support/make/board-includes/olimex_stm32_h103.mk | 1 + support/make/target-config.mk | 6 +- wirish/include/wirish/usb_serial.h | 5 +- wirish/rules.mk | 4 +- wirish/stm32f1/boards_setup.cpp | 10 +- wirish/usb_serial.cpp | 9 + 28 files changed, 2015 insertions(+), 1919 deletions(-) create mode 100644 libmaple/usb/stm32f1/usb.c create mode 100644 libmaple/usb/stm32f1/usb_cdcacm.c create mode 100644 libmaple/usb/stm32f1/usb_descriptors.h create mode 100644 libmaple/usb/stm32f1/usb_lib_globals.h create mode 100644 libmaple/usb/stm32f1/usb_reg_map.c create mode 100644 libmaple/usb/stm32f1/usb_reg_map.h delete mode 100644 libmaple/usb/usb.c delete mode 100644 libmaple/usb/usb_cdcacm.c delete mode 100644 libmaple/usb/usb_descriptors.h delete mode 100644 libmaple/usb/usb_lib_globals.h delete mode 100644 libmaple/usb/usb_reg_map.c delete mode 100644 libmaple/usb/usb_reg_map.h create mode 100644 support/ld/stm32/series/stm32f1/value/vector_symbols.inc (limited to 'wirish/stm32f1') diff --git a/Makefile b/Makefile index 0784644..e3a1e4f 100644 --- a/Makefile +++ b/Makefile @@ -75,7 +75,7 @@ ifeq ($(LIBMAPLE_MODULES),) else LIBMAPLE_MODULES += $(SRCROOT)/libmaple endif -# LIBMAPLE_MODULES += $(SRCROOT)/libmaple/usb # USB FS device +LIBMAPLE_MODULES += $(SRCROOT)/libmaple/usb # The USB module is kept separate LIBMAPLE_MODULES += $(LIBMAPLE_MODULE_SERIES) # STM32 series submodule in libmaple LIBMAPLE_MODULES += $(SRCROOT)/wirish # Official libraries: diff --git a/libmaple/include/libmaple/usb.h b/libmaple/include/libmaple/usb.h index 82bace9..8555aca 100644 --- a/libmaple/include/libmaple/usb.h +++ b/libmaple/include/libmaple/usb.h @@ -1,7 +1,7 @@ /****************************************************************************** * The MIT License * - * Copyright (c) 2010 LeafLabs LLC. + * Copyright (c) 2010, 2011 LeafLabs LLC. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation diff --git a/libmaple/usb/README b/libmaple/usb/README index 2c55364..d0fca8d 100644 --- a/libmaple/usb/README +++ b/libmaple/usb/README @@ -1,35 +1,24 @@ -The USB submodule of libmaple is responsible for: - - Initializing the USB peripheral, scaling the peripheral clocks - appropriately, enabling the interrupt channels to USB, defining - the USB IRQ, resetting the USB DISC pin (used to tell the host - were alive). Additionally, the USB submodule defines the virtual - COM port interface that is exposed to user sketches via SerialUSB. - -To use it: - - SerialUSB.print/ln, available(), read(), write() implement the same - interface as Serial1/2/3. +The USB submodule of libmaple is a separate piece of the codebase for +reasons that are largely historical. Current Status: - Currently, the USB submodule relies on the low level core library - provided by ST to implement the USB transfer protocol for control - endpoint transfers. The high level virtual com port application - is unfortunately hard to untangle from this low level dependence, - and when a new USB core library is written (to nix ST dependence) - changes will likely have to be made to virtual com application - code. Ideally, the new core library should mimic the form of MyUSB - (LUFA), since this library (USB for AVR) is growing in popularity - and in example applications. + There's only support for the USB device peripheral found on + STM32F103s. - The virtual com port serves two important purposes. + We rely on the low level core library provided by ST to implement + the USB transfer protocol for control endpoint transfers. - 1) It allows serial data transfers between user sketches an a - host computer. + The virtual com port (which is exposed via + ) serves two important purposes. - 2) It allows the host machine to issue a system reset by - asserting the DTR signal. + 1) It allows serial data transfers between user sketches an a + host computer. + + 2) It allows the host PC to issue a system reset into the DFU + bootloader with the DTR + RTS + "1EAF" sequence (see + leaflabs.com/docs/bootloader.html for more information on + this). After reset, Maple will run the DFU bootloader for a few seconds, during which the user can begin a DFU upload operation (uploads @@ -38,11 +27,11 @@ Current Status: the chip in order to enable the bootloader. If you would like to develop your own USB application for whatever - reason (uses faster isochronous enpoints for streaming audio, or - implements the USB HID or Mass Storage specs for examples) then + reason (e.g. to use faster isochronous enpoints for streaming + audio, or implement the USB HID or Mass Storage specs), then ensure that you leave some hook for resetting Maple remotely in - order to spin up the DFU bootloader. Please make sure to give - yourself a unique vendor/product ID pair in your application, as + order to spin up the DFU bootloader. Please make sure to get + yourself a unique vendor/product ID pair for your application, as some operating systems will assign a host-side driver based on these tags. @@ -52,21 +41,23 @@ Current Status: be a burden from the host driver side, as Windows and *nix handle compound USB devices quite differently. - Be mindful that enabling the USB peripheral isnt "free." The + Be mindful that enabling the USB peripheral isn't "free." The device must respond to periodic bus activity (every few milliseconds) by servicing an ISR. Therefore, the USB application - should be disabled inside of timing critical applications. In - order to disconnect the device from the host, the USB_DISC pin can - be asserted (on Maple this is GPIO C12). Alternatively, the NVIC + should be disabled inside of timing critical applications. + + In order to disconnect the device from the host, a USB_DISC pin is + asserted (e.g. on Maple, this is PC12). Alternatively, the NVIC can be directly configured to disable the USB LP/HP IRQ's. The files inside of usb_lib were provided by ST and are subject to their own license, all other files were written by the LeafLabs team and fall under the MIT license. -Todo: +TODO: - - write custom low level USB stack to strip out any remaining - dependence on ST code - - add a high level USB application library that would allow users - to make their own HID/Mass Storage/Audio/Video devices. + - Generic USB driver core with series-provided backends, like + libopencm3 has. + - Strip out ST code. + - Integration with a high level USB library (like LUFA/MyUSB) to + allow users to write custom USB applications. diff --git a/libmaple/usb/rules.mk b/libmaple/usb/rules.mk index 816fad6..e8ccc15 100644 --- a/libmaple/usb/rules.mk +++ b/libmaple/usb/rules.mk @@ -3,20 +3,29 @@ sp := $(sp).x dirstack_$(sp) := $(d) d := $(dir) BUILDDIRS += $(BUILD_PATH)/$(d) -BUILDDIRS += $(BUILD_PATH)/$(d)/usb_lib # Local flags -CFLAGS_$(d) = -I$(d) -I$(d)/usb_lib $(LIBMAPLE_INCLUDES) $(LIBMAPLE_PRIVATE_INCLUDES) -Wall +CFLAGS_$(d) = -I$(d) -I$(d)/$(MCU_SERIES) -I$(d)/usb_lib $(LIBMAPLE_INCLUDES) $(LIBMAPLE_PRIVATE_INCLUDES) -Wall + +# Add usblib and series subdirectory to BUILDDIRS. +BUILDDIRS += $(BUILD_PATH)/$(d)/$(MCU_SERIES) +BUILDDIRS += $(BUILD_PATH)/$(d)/usb_lib # Local rules and targets sSRCS_$(d) := -cSRCS_$(d) := usb.c \ - usb_reg_map.c \ - usb_cdcacm.c \ - usb_lib/usb_core.c \ - usb_lib/usb_init.c \ - usb_lib/usb_mem.c \ - usb_lib/usb_regs.c +cSRCS_$(d) := +# We currently only have F1 performance line support. Sigh. +ifeq ($(MCU_SERIES), stm32f1) +ifeq ($(MCU_F1_LINE), performance) +cSRCS_$(d) += $(MCU_SERIES)/usb.c +cSRCS_$(d) += $(MCU_SERIES)/usb_reg_map.c +cSRCS_$(d) += $(MCU_SERIES)/usb_cdcacm.c +cSRCS_$(d) += usb_lib/usb_core.c +cSRCS_$(d) += usb_lib/usb_init.c +cSRCS_$(d) += usb_lib/usb_mem.c +cSRCS_$(d) += usb_lib/usb_regs.c +endif +endif sFILES_$(d) := $(sSRCS_$(d):%=$(d)/%) cFILES_$(d) := $(cSRCS_$(d):%=$(d)/%) diff --git a/libmaple/usb/stm32f1/usb.c b/libmaple/usb/stm32f1/usb.c new file mode 100644 index 0000000..0130bab --- /dev/null +++ b/libmaple/usb/stm32f1/usb.c @@ -0,0 +1,381 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2010 LeafLabs LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file libmaple/usb/usb.c + * @brief USB support. + * + * This is a mess. What we need almost amounts to a ground-up rewrite. + */ + +#include + +#include +#include + +/* Private headers */ +#include "usb_reg_map.h" +#include "usb_lib_globals.h" + +/* usb_lib headers */ +#include "usb_type.h" +#include "usb_core.h" + +static void dispatch_ctr_lp(void); + +/* + * usb_lib/ globals + */ + +uint16 SaveTState; /* caches TX status for later use */ +uint16 SaveRState; /* caches RX status for later use */ + +/* + * Other state + */ + +typedef enum { + RESUME_EXTERNAL, + RESUME_INTERNAL, + RESUME_LATER, + RESUME_WAIT, + RESUME_START, + RESUME_ON, + RESUME_OFF, + RESUME_ESOF +} RESUME_STATE; + +struct { + volatile RESUME_STATE eState; + volatile uint8 bESOFcnt; +} ResumeS; + +static usblib_dev usblib = { + .irq_mask = USB_ISR_MSK, + .state = USB_UNCONNECTED, + .clk_id = RCC_USB, +}; +usblib_dev *USBLIB = &usblib; + +/* + * Routines + */ + +void usb_init_usblib(usblib_dev *dev, + void (**ep_int_in)(void), + void (**ep_int_out)(void)) { + rcc_clk_enable(dev->clk_id); + + dev->ep_int_in = ep_int_in; + dev->ep_int_out = ep_int_out; + + /* usb_lib/ declares both and then assumes that pFoo points to Foo + * (even though the names don't always match), which is stupid for + * all of the obvious reasons, but whatever. Here we are. */ + pInformation = &Device_Info; + pProperty = &Device_Property; + pUser_Standard_Requests = &User_Standard_Requests; + + pInformation->ControlState = 2; /* FIXME [0.0.12] use + CONTROL_STATE enumerator */ + pProperty->Init(); +} + +static void usb_suspend(void) { + uint16 cntr; + + /* TODO decide if read/modify/write is really what we want + * (e.g. usb_resume_init() reconfigures CNTR). */ + cntr = USB_BASE->CNTR; + cntr |= USB_CNTR_FSUSP; + USB_BASE->CNTR = cntr; + cntr |= USB_CNTR_LP_MODE; + USB_BASE->CNTR = cntr; + + USBLIB->state = USB_SUSPENDED; +} + +static void usb_resume_init(void) { + uint16 cntr; + + cntr = USB_BASE->CNTR; + cntr &= ~USB_CNTR_LP_MODE; + USB_BASE->CNTR = cntr; + + /* Enable interrupt lines */ + USB_BASE->CNTR = USB_ISR_MSK; +} + +static void usb_resume(RESUME_STATE eResumeSetVal) { + uint16 cntr; + + if (eResumeSetVal != RESUME_ESOF) + ResumeS.eState = eResumeSetVal; + + switch (ResumeS.eState) + { + case RESUME_EXTERNAL: + usb_resume_init(); + ResumeS.eState = RESUME_OFF; + break; + case RESUME_INTERNAL: + usb_resume_init(); + ResumeS.eState = RESUME_START; + break; + case RESUME_LATER: + ResumeS.bESOFcnt = 2; + ResumeS.eState = RESUME_WAIT; + break; + case RESUME_WAIT: + ResumeS.bESOFcnt--; + if (ResumeS.bESOFcnt == 0) + ResumeS.eState = RESUME_START; + break; + case RESUME_START: + cntr = USB_BASE->CNTR; + cntr |= USB_CNTR_RESUME; + USB_BASE->CNTR = cntr; + ResumeS.eState = RESUME_ON; + ResumeS.bESOFcnt = 10; + break; + case RESUME_ON: + ResumeS.bESOFcnt--; + if (ResumeS.bESOFcnt == 0) { + cntr = USB_BASE->CNTR; + cntr &= ~USB_CNTR_RESUME; + USB_BASE->CNTR = cntr; + ResumeS.eState = RESUME_OFF; + } + break; + case RESUME_OFF: + case RESUME_ESOF: + default: + ResumeS.eState = RESUME_OFF; + break; + } +} + +#define SUSPEND_ENABLED 1 +void __irq_usb_lp_can_rx0(void) { + uint16 istr = USB_BASE->ISTR; + + /* Use USB_ISR_MSK to only include code for bits we care about. */ + +#if (USB_ISR_MSK & USB_ISTR_RESET) + if (istr & USB_ISTR_RESET & USBLIB->irq_mask) { + USB_BASE->ISTR = ~USB_ISTR_RESET; + pProperty->Reset(); + } +#endif + +#if (USB_ISR_MSK & USB_ISTR_PMAOVR) + if (istr & ISTR_PMAOVR & USBLIB->irq_mask) { + USB_BASE->ISTR = ~USB_ISTR_PMAOVR; + } +#endif + +#if (USB_ISR_MSK & USB_ISTR_ERR) + if (istr & USB_ISTR_ERR & USBLIB->irq_mask) { + USB_BASE->ISTR = ~USB_ISTR_ERR; + } +#endif + +#if (USB_ISR_MSK & USB_ISTR_WKUP) + if (istr & USB_ISTR_WKUP & USBLIB->irq_mask) { + USB_BASE->ISTR = ~USB_ISTR_WKUP; + usb_resume(RESUME_EXTERNAL); + } +#endif + +#if (USB_ISR_MSK & USB_ISTR_SUSP) + if (istr & USB_ISTR_SUSP & USBLIB->irq_mask) { + /* check if SUSPEND is possible */ + if (SUSPEND_ENABLED) { + usb_suspend(); + } else { + /* if not possible then resume after xx ms */ + usb_resume(RESUME_LATER); + } + /* clear of the ISTR bit must be done after setting of CNTR_FSUSP */ + USB_BASE->ISTR = ~USB_ISTR_SUSP; +} +#endif + +#if (USB_ISR_MSK & USB_ISTR_SOF) + if (istr & USB_ISTR_SOF & USBLIB->irq_mask) { + USB_BASE->ISTR = ~USB_ISTR_SOF; + } +#endif + +#if (USB_ISR_MSK & USB_ISTR_ESOF) + if (istr & USB_ISTR_ESOF & USBLIB->irq_mask) { + USB_BASE->ISTR = ~USB_ISTR_ESOF; + /* resume handling timing is made with ESOFs */ + usb_resume(RESUME_ESOF); /* request without change of the machine state */ + } +#endif + + /* + * Service the correct transfer interrupt. + */ + +#if (USB_ISR_MSK & USB_ISTR_CTR) + if (istr & USB_ISTR_CTR & USBLIB->irq_mask) { + dispatch_ctr_lp(); + } +#endif +} + +/* + * Auxiliary routines + */ + +static inline uint8 dispatch_endpt_zero(uint16 istr_dir); +static inline void dispatch_endpt(uint8 ep); +static inline void set_rx_tx_status0(uint16 rx, uint16 tx); + +static void handle_setup0(void); +static void handle_in0(void); +static void handle_out0(void); + +static void dispatch_ctr_lp() { + uint16 istr; + while (((istr = USB_BASE->ISTR) & USB_ISTR_CTR) != 0) { + /* TODO WTF, figure this out: RM0008 says CTR is read-only, + * but ST's firmware claims it's clear-only, and emphasizes + * the importance of clearing it in more than one place. */ + USB_BASE->ISTR = ~USB_ISTR_CTR; + uint8 ep_id = istr & USB_ISTR_EP_ID; + if (ep_id == 0) { + /* TODO figure out why it's OK to break out of the loop + * once we're done serving endpoint zero, but not okay if + * there are multiple nonzero endpoint transfers to + * handle. */ + if (dispatch_endpt_zero(istr & USB_ISTR_DIR)) + return; + } else { + dispatch_endpt(ep_id); + } + } +} + +/* FIXME Dataflow on endpoint 0 RX/TX status is based off of ST's + * code, and is ugly/confusing in its use of SaveRState/SaveTState. + * Fixing this requires filling in handle_in0(), handle_setup0(), + * handle_out0(). */ +static inline uint8 dispatch_endpt_zero(uint16 istr_dir) { + uint32 epr = (uint16)USB_BASE->EP[0]; + + if (!(epr & (USB_EP_CTR_TX | USB_EP_SETUP | USB_EP_CTR_RX))) { + return 0; + } + + /* Cache RX/TX statuses in SaveRState/SaveTState, respectively. + * The various handle_foo0() may clobber these values + * before we reset them at the end of this routine. */ + SaveRState = epr & USB_EP_STAT_RX; + SaveTState = epr & USB_EP_STAT_TX; + + /* Set actual RX/TX statuses to NAK while we're thinking */ + set_rx_tx_status0(USB_EP_STAT_RX_NAK, USB_EP_STAT_TX_NAK); + + if (istr_dir == 0) { + /* ST RM0008: "If DIR bit=0, CTR_TX bit is set in the USB_EPnR + * register related to the interrupting endpoint. The + * interrupting transaction is of IN type (data transmitted by + * the USB peripheral to the host PC)." */ + ASSERT_FAULT(epr & USB_EP_CTR_TX); + usb_clear_ctr_tx(USB_EP0); + handle_in0(); + } else { + /* RM0008: "If DIR bit=1, CTR_RX bit or both CTR_TX/CTR_RX + * are set in the USB_EPnR register related to the + * interrupting endpoint. The interrupting transaction is of + * OUT type (data received by the USB peripheral from the host + * PC) or two pending transactions are waiting to be + * processed." + * + * [mbolivar] Note how the following control flow (which + * replicates ST's) doesn't seem to actually handle both + * interrupts that are ostensibly pending when both CTR_RX and + * CTR_TX are set. + * + * TODO sort this mess out. + */ + if (epr & USB_EP_CTR_TX) { + usb_clear_ctr_tx(USB_EP0); + handle_in0(); + } else { /* SETUP or CTR_RX */ + /* SETUP is held constant while CTR_RX is set, so clear it + * either way */ + usb_clear_ctr_rx(USB_EP0); + if (epr & USB_EP_SETUP) { + handle_setup0(); + } else { /* CTR_RX */ + handle_out0(); + } + } + } + + set_rx_tx_status0(SaveRState, SaveTState); + return 1; +} + +static inline void dispatch_endpt(uint8 ep) { + uint32 epr = USB_BASE->EP[ep]; + /* If ISTR_CTR is set and the ISTR gave us this EP_ID to handle, + * then presumably at least one of CTR_RX and CTR_TX is set, but + * again, ST's control flow allows for the possibility of neither. + * + * TODO try to find out if neither being set is possible. */ + if (epr & USB_EP_CTR_RX) { + usb_clear_ctr_rx(ep); + (USBLIB->ep_int_out[ep - 1])(); + } + if (epr & USB_EP_CTR_TX) { + usb_clear_ctr_tx(ep); + (USBLIB->ep_int_in[ep - 1])(); + } +} + +static inline void set_rx_tx_status0(uint16 rx, uint16 tx) { + usb_set_ep_rx_stat(USB_EP0, rx); + usb_set_ep_tx_stat(USB_EP0, tx); +} + +/* TODO Rip out usb_lib/ dependency from the following functions: */ + +static void handle_setup0(void) { + Setup0_Process(); +} + +static void handle_in0(void) { + In0_Process(); +} + +static void handle_out0(void) { + Out0_Process(); +} diff --git a/libmaple/usb/stm32f1/usb_cdcacm.c b/libmaple/usb/stm32f1/usb_cdcacm.c new file mode 100644 index 0000000..6ef4806 --- /dev/null +++ b/libmaple/usb/stm32f1/usb_cdcacm.c @@ -0,0 +1,762 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2011 LeafLabs LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file libmaple/usb/usb_cdcacm.c + * @brief USB CDC ACM (a.k.a. virtual serial terminal, VCOM). + * + * FIXME: this works on the STM32F1 USB peripherals, and probably no + * place else. Nonportable bits really need to be factored out, and + * the result made cleaner. + */ + +#include + +#include +#include +#include + +/* Private headers */ +#include "usb_descriptors.h" +#include "usb_lib_globals.h" +#include "usb_reg_map.h" + +/* usb_lib headers */ +#include "usb_type.h" +#include "usb_core.h" +#include "usb_def.h" + +/****************************************************************************** + ****************************************************************************** + *** + *** HACK ALERT! FIXME FIXME FIXME FIXME! + *** + *** A bunch of LeafLabs-specific configuration lives in here for + *** now. This mess REALLY needs to get teased apart, with + *** appropriate pieces moved into Wirish. + *** + ****************************************************************************** + *****************************************************************************/ + +#if !(defined(BOARD_maple) || defined(BOARD_maple_RET6) || \ + defined(BOARD_maple_mini) || defined(BOARD_maple_native)) +#warning USB CDC ACM relies on LeafLabs board-specific configuration.\ + You may have problems on non-LeafLabs boards. +#endif + +static void vcomDataTxCb(void); +static void vcomDataRxCb(void); +static uint8* vcomGetSetLineCoding(uint16); + +static void usbInit(void); +static void usbReset(void); +static RESULT usbDataSetup(uint8 request); +static RESULT usbNoDataSetup(uint8 request); +static RESULT usbGetInterfaceSetting(uint8 interface, uint8 alt_setting); +static uint8* usbGetDeviceDescriptor(uint16 length); +static uint8* usbGetConfigDescriptor(uint16 length); +static uint8* usbGetStringDescriptor(uint16 length); +static void usbSetConfiguration(void); +static void usbSetDeviceAddress(void); + +static void wait_reset(void); + +/* + * VCOM config + */ + +#define VCOM_CTRL_EPNUM 0x00 +#define VCOM_CTRL_RX_ADDR 0x40 +#define VCOM_CTRL_TX_ADDR 0x80 +#define VCOM_CTRL_EPSIZE 0x40 + +#define VCOM_TX_ENDP 1 +#define VCOM_TX_EPNUM 0x01 +#define VCOM_TX_ADDR 0xC0 +#define VCOM_TX_EPSIZE 0x40 + +#define VCOM_NOTIFICATION_ENDP 2 +#define VCOM_NOTIFICATION_EPNUM 0x02 +#define VCOM_NOTIFICATION_ADDR 0x100 +#define VCOM_NOTIFICATION_EPSIZE 0x40 + +#define VCOM_RX_ENDP 3 +#define VCOM_RX_EPNUM 0x03 +#define VCOM_RX_ADDR 0x110 +#define VCOM_RX_EPSIZE 0x40 +#define VCOM_RX_BUFLEN (VCOM_RX_EPSIZE*3) + +/* + * CDC ACM Requests + */ + +#define SET_LINE_CODING 0x20 +#define GET_LINE_CODING 0x21 +#define SET_COMM_FEATURE 0x02 +#define SET_CONTROL_LINE_STATE 0x22 +#define CONTROL_LINE_DTR (0x01) +#define CONTROL_LINE_RTS (0x02) + +/* + * Descriptors + */ + +#define USB_DEVICE_CLASS_CDC 0x02 +#define USB_DEVICE_SUBCLASS_CDC 0x00 +#define LEAFLABS_ID_VENDOR 0x1EAF +#define MAPLE_ID_PRODUCT 0x0004 +const USB_Descriptor_Device usbVcomDescriptor_Device = { + .bLength = sizeof(USB_Descriptor_Device), + .bDescriptorType = USB_DESCRIPTOR_TYPE_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = USB_DEVICE_CLASS_CDC, + .bDeviceSubClass = USB_DEVICE_SUBCLASS_CDC, + .bDeviceProtocol = 0x00, + .bMaxPacketSize0 = 0x40, + .idVendor = LEAFLABS_ID_VENDOR, + .idProduct = MAPLE_ID_PRODUCT, + .bcdDevice = 0x0200, + .iManufacturer = 0x01, + .iProduct = 0x02, + .iSerialNumber = 0x00, + .bNumConfigurations = 0x01, +}; + +#define MAX_POWER (100 >> 1) +const USB_Descriptor_Config usbVcomDescriptor_Config = { + .Config_Header = { + .bLength = sizeof(USB_Descriptor_Config_Header), + .bDescriptorType = USB_DESCRIPTOR_TYPE_CONFIGURATION, + .wTotalLength = sizeof(USB_Descriptor_Config), + .bNumInterfaces = 0x02, + .bConfigurationValue = 0x01, + .iConfiguration = 0x00, + .bmAttributes = (USB_CONFIG_ATTR_BUSPOWERED | + USB_CONFIG_ATTR_SELF_POWERED), + .bMaxPower = MAX_POWER, + }, + + .CCI_Interface = { + .bLength = sizeof(USB_Descriptor_Interface), + .bDescriptorType = USB_DESCRIPTOR_TYPE_INTERFACE, + .bInterfaceNumber = 0x00, + .bAlternateSetting = 0x00, + .bNumEndpoints = 0x01, + .bInterfaceClass = USB_INTERFACE_CLASS_CDC, + .bInterfaceSubClass = USB_INTERFACE_SUBCLASS_CDC_ACM, + .bInterfaceProtocol = 0x01, /* Common AT Commands */ + .iInterface = 0x00, + }, + + .CDC_Functional_IntHeader = { + .bLength = CDC_FUNCTIONAL_DESCRIPTOR_SIZE(2), + .bDescriptorType = 0x24, + .SubType = 0x00, + .Data = {0x01, 0x10}, + }, + + .CDC_Functional_CallManagement = { + .bLength = CDC_FUNCTIONAL_DESCRIPTOR_SIZE(2), + .bDescriptorType = 0x24, + .SubType = 0x01, + .Data = {0x03, 0x01}, + }, + + .CDC_Functional_ACM = { + .bLength = CDC_FUNCTIONAL_DESCRIPTOR_SIZE(1), + .bDescriptorType = 0x24, + .SubType = 0x02, + .Data = {0x06}, + }, + + .CDC_Functional_Union = { + .bLength = CDC_FUNCTIONAL_DESCRIPTOR_SIZE(2), + .bDescriptorType = 0x24, + .SubType = 0x06, + .Data = {0x00, 0x01}, + }, + + .ManagementEndpoint = { + .bLength = sizeof(USB_Descriptor_Endpoint), + .bDescriptorType = USB_DESCRIPTOR_TYPE_ENDPOINT, + .bEndpointAddress = (USB_DESCRIPTOR_ENDPOINT_IN | + VCOM_NOTIFICATION_EPNUM), + .bmAttributes = EP_TYPE_INTERRUPT, + .wMaxPacketSize = VCOM_NOTIFICATION_EPSIZE, + .bInterval = 0xFF, + }, + + .DCI_Interface = { + .bLength = sizeof(USB_Descriptor_Interface), + .bDescriptorType = USB_DESCRIPTOR_TYPE_INTERFACE, + .bInterfaceNumber = 0x01, + .bAlternateSetting = 0x00, + .bNumEndpoints = 0x02, + .bInterfaceClass = USB_INTERFACE_CLASS_DIC, + .bInterfaceSubClass = 0x00, /* None */ + .bInterfaceProtocol = 0x00, /* None */ + .iInterface = 0x00, + }, + + .DataOutEndpoint = { + .bLength = sizeof(USB_Descriptor_Endpoint), + .bDescriptorType = USB_DESCRIPTOR_TYPE_ENDPOINT, + .bEndpointAddress = (USB_DESCRIPTOR_ENDPOINT_OUT | VCOM_RX_EPNUM), + .bmAttributes = EP_TYPE_BULK, + .wMaxPacketSize = VCOM_RX_EPSIZE, + .bInterval = 0x00, + }, + + .DataInEndpoint = { + .bLength = sizeof(USB_Descriptor_Endpoint), + .bDescriptorType = USB_DESCRIPTOR_TYPE_ENDPOINT, + .bEndpointAddress = (USB_DESCRIPTOR_ENDPOINT_IN | VCOM_TX_EPNUM), + .bmAttributes = EP_TYPE_BULK, + .wMaxPacketSize = VCOM_TX_EPSIZE, + .bInterval = 0x00, + }, +}; + +/* + String Identifiers: + + we may choose to specify any or none of the following string + identifiers: + + iManufacturer: LeafLabs + iProduct: Maple + iSerialNumber: NONE + iConfiguration: NONE + iInterface(CCI): NONE + iInterface(DCI): NONE + + additionally we must provide the unicode language identifier, + which is 0x0409 for US English +*/ + +const uint8 usbVcomDescriptor_LangID[USB_DESCRIPTOR_STRING_LEN(1)] = { + USB_DESCRIPTOR_STRING_LEN(1), + USB_DESCRIPTOR_TYPE_STRING, + 0x09, + 0x04, +}; + +const uint8 usbVcomDescriptor_iManufacturer[USB_DESCRIPTOR_STRING_LEN(8)] = { + USB_DESCRIPTOR_STRING_LEN(8), + USB_DESCRIPTOR_TYPE_STRING, + 'L', 0, 'e', 0, 'a', 0, 'f', 0, + 'L', 0, 'a', 0, 'b', 0, 's', 0, +}; + +const uint8 usbVcomDescriptor_iProduct[USB_DESCRIPTOR_STRING_LEN(8)] = { + USB_DESCRIPTOR_STRING_LEN(8), + USB_DESCRIPTOR_TYPE_STRING, + 'M', 0, 'a', 0, 'p', 0, 'l', 0, + 'e', 0, ' ', 0, ' ', 0, ' ', 0 +}; + +ONE_DESCRIPTOR Device_Descriptor = { + (uint8*)&usbVcomDescriptor_Device, + sizeof(USB_Descriptor_Device) +}; + +ONE_DESCRIPTOR Config_Descriptor = { + (uint8*)&usbVcomDescriptor_Config, + sizeof(USB_Descriptor_Config) +}; + +ONE_DESCRIPTOR String_Descriptor[3] = { + {(uint8*)&usbVcomDescriptor_LangID, USB_DESCRIPTOR_STRING_LEN(1)}, + {(uint8*)&usbVcomDescriptor_iManufacturer,USB_DESCRIPTOR_STRING_LEN(8)}, + {(uint8*)&usbVcomDescriptor_iProduct, USB_DESCRIPTOR_STRING_LEN(8)} +}; + +/* + * Etc. + */ + +typedef enum { + DTR_UNSET, + DTR_HIGH, + DTR_NEGEDGE, + DTR_LOW +} RESET_STATE; + +typedef struct { + uint32 bitrate; + uint8 format; + uint8 paritytype; + uint8 datatype; +} USB_Line_Coding; + +uint8 last_request = 0; +USB_Line_Coding line_coding = { + .bitrate = 115200, + .format = 0x00, /* stop bits-1 */ + .paritytype = 0x00, + .datatype = 0x08 +}; +uint8 vcomBufferRx[VCOM_RX_BUFLEN]; +volatile uint32 countTx = 0; +volatile uint32 recvBufIn = 0; +volatile uint32 recvBufOut = 0; +volatile uint32 maxNewBytes = VCOM_RX_BUFLEN; +volatile uint32 newBytes = 0; +RESET_STATE reset_state = DTR_UNSET; +uint8 line_dtr_rts = 0; + +/* + * Endpoint callbacks + */ + +static void (*ep_int_in[7])(void) = + {vcomDataTxCb, + NOP_Process, + NOP_Process, + NOP_Process, + NOP_Process, + NOP_Process, + NOP_Process}; + +static void (*ep_int_out[7])(void) = + {NOP_Process, + NOP_Process, + vcomDataRxCb, + NOP_Process, + NOP_Process, + NOP_Process, + NOP_Process}; + +/* + * Globals required by usb_lib/ + */ + +#define NUM_ENDPTS 0x04 +DEVICE Device_Table = { + .Total_Endpoint = NUM_ENDPTS, + .Total_Configuration = 1 +}; + +#define MAX_PACKET_SIZE 0x40 /* 64B, maximum for USB FS Devices */ +DEVICE_PROP Device_Property = { + .Init = usbInit, + .Reset = usbReset, + .Process_Status_IN = NOP_Process, + .Process_Status_OUT = NOP_Process, + .Class_Data_Setup = usbDataSetup, + .Class_NoData_Setup = usbNoDataSetup, + .Class_Get_Interface_Setting = usbGetInterfaceSetting, + .GetDeviceDescriptor = usbGetDeviceDescriptor, + .GetConfigDescriptor = usbGetConfigDescriptor, + .GetStringDescriptor = usbGetStringDescriptor, + .RxEP_buffer = NULL, + .MaxPacketSize = MAX_PACKET_SIZE +}; + +USER_STANDARD_REQUESTS User_Standard_Requests = { + .User_GetConfiguration = NOP_Process, + .User_SetConfiguration = usbSetConfiguration, + .User_GetInterface = NOP_Process, + .User_SetInterface = NOP_Process, + .User_GetStatus = NOP_Process, + .User_ClearFeature = NOP_Process, + .User_SetEndPointFeature = NOP_Process, + .User_SetDeviceFeature = NOP_Process, + .User_SetDeviceAddress = usbSetDeviceAddress +}; + +/* + * CDC ACM interface + */ + +void usb_cdcacm_enable(gpio_dev *disc_dev, uint8 disc_bit) { + /* Present ourselves to the host */ + gpio_set_mode(disc_dev, disc_bit, GPIO_OUTPUT_PP); + gpio_write_bit(disc_dev, disc_bit, 0); // presents us to the host + + /* initialize USB peripheral */ + usb_init_usblib(USBLIB, ep_int_in, ep_int_out); +} + +void usb_cdcacm_disable(gpio_dev *disc_dev, uint8 disc_bit) { + // These are just guesses about how to do this, but it seems to work. + // TODO: verify this with USB spec + nvic_irq_disable(NVIC_USB_LP_CAN_RX0); + gpio_write_bit(disc_dev, disc_bit, 1); +} + +void usb_cdcacm_putc(char ch) { + while (!usb_cdcacm_tx((uint8*)&ch, 1)) + ; +} + +/* This function is non-blocking. + * + * It copies data from a usercode buffer into the USB peripheral TX + * buffer and return the number placed in that buffer. + */ +uint32 usb_cdcacm_tx(const uint8* buf, uint32 len) { + /* Last transmission hasn't finished, abort */ + if (countTx) { + return 0; + } + + // We can only put VCOM_TX_EPSIZE bytes in the buffer + /* FIXME then why are we only copying half as many? */ + if (len > VCOM_TX_EPSIZE / 2) { + len = VCOM_TX_EPSIZE / 2; + } + + // Try to load some bytes if we can + if (len) { + usb_copy_to_pma(buf, len, VCOM_TX_ADDR); + usb_set_ep_tx_count(VCOM_TX_ENDP, len); + countTx += len; + usb_set_ep_tx_stat(VCOM_TX_ENDP, USB_EP_STAT_TX_VALID); + } + + return len; +} + +/* returns the number of available bytes are in the recv FIFO */ +uint32 usb_cdcacm_data_available(void) { + return newBytes; +} + +uint16 usb_cdcacm_get_pending() { + return countTx; +} + +/* Nonblocking byte receive. + * + * Copies up to len bytes from our private data buffer (*NOT* the PMA) + * into buf and deq's the FIFO. */ +uint32 usb_cdcacm_rx(uint8* buf, uint32 len) { + static int offset = 0; + int i; + + if (len > newBytes) { + len = newBytes; + } + + for (i = 0; i < len; i++) { + buf[i] = vcomBufferRx[i + offset]; + } + + newBytes -= len; + offset += len; + + /* Re-enable the RX endpoint, which we had set to receive 0 bytes */ + if (newBytes == 0) { + usb_set_ep_rx_count(VCOM_RX_ENDP, VCOM_RX_EPSIZE); + usb_set_ep_rx_stat(VCOM_RX_ENDP, USB_EP_STAT_RX_VALID); + offset = 0; + } + + return len; +} + +uint8 usb_cdcacm_get_dtr() { + return ((line_dtr_rts & CONTROL_LINE_DTR) != 0); +} + +uint8 usb_cdcacm_get_rts() { + return ((line_dtr_rts & CONTROL_LINE_RTS) != 0); +} + +/* + * Callbacks + */ + +static void vcomDataTxCb(void) { + /* assumes tx transactions are atomic 64 bytes (nearly certain they are) */ + countTx = 0; +} + +#define EXC_RETURN 0xFFFFFFF9 +#define DEFAULT_CPSR 0x61000000 +static void vcomDataRxCb(void) { + /* FIXME this is mad buggy */ + + /* setEPRxCount on the previous cycle should garuntee + we havnt received more bytes than we can fit */ + newBytes = usb_get_ep_rx_count(VCOM_RX_ENDP); + usb_set_ep_rx_stat(VCOM_RX_ENDP, USB_EP_STAT_RX_NAK); + + /* magic number, {0x31, 0x45, 0x41, 0x46} is "1EAF" */ + uint8 chkBuf[4]; + uint8 cmpBuf[4] = {0x31, 0x45, 0x41, 0x46}; + if (reset_state == DTR_NEGEDGE) { + reset_state = DTR_LOW; + + if (newBytes >= 4) { + unsigned int target = (unsigned int)wait_reset | 0x1; + + usb_copy_from_pma(chkBuf, 4, VCOM_RX_ADDR); + + int i; + USB_Bool cmpMatch = TRUE; + for (i = 0; i < 4; i++) { + if (chkBuf[i] != cmpBuf[i]) { + cmpMatch = FALSE; + } + } + + if (cmpMatch) { + asm volatile("mov r0, %[stack_top] \n\t" // Reset stack + "mov sp, r0 \n\t" + "mov r0, #1 \n\t" + "mov r1, %[target_addr] \n\t" + "mov r2, %[cpsr] \n\t" + "push {r2} \n\t" // Fake xPSR + "push {r1} \n\t" // PC target addr + "push {r0} \n\t" // Fake LR + "push {r0} \n\t" // Fake R12 + "push {r0} \n\t" // Fake R3 + "push {r0} \n\t" // Fake R2 + "push {r0} \n\t" // Fake R1 + "push {r0} \n\t" // Fake R0 + "mov lr, %[exc_return] \n\t" + "bx lr" + : + : [stack_top] "r" (STACK_TOP), + [target_addr] "r" (target), + [exc_return] "r" (EXC_RETURN), + [cpsr] "r" (DEFAULT_CPSR) + : "r0", "r1", "r2"); + /* should never get here */ + } + } + } + + usb_copy_from_pma(vcomBufferRx, newBytes, VCOM_RX_ADDR); +} + +static uint8* vcomGetSetLineCoding(uint16 length) { + if (length == 0) { + pInformation->Ctrl_Info.Usb_wLength = sizeof(USB_Line_Coding); + } + return (uint8*)&line_coding; +} + +static void usbInit(void) { + pInformation->Current_Configuration = 0; + + USB_BASE->CNTR = USB_CNTR_FRES; + + USBLIB->irq_mask = 0; + USB_BASE->CNTR = USBLIB->irq_mask; + USB_BASE->ISTR = 0; + USBLIB->irq_mask = USB_CNTR_RESETM | USB_CNTR_SUSPM | USB_CNTR_WKUPM; + USB_BASE->CNTR = USBLIB->irq_mask; + + USB_BASE->ISTR = 0; + USBLIB->irq_mask = USB_ISR_MSK; + USB_BASE->CNTR = USBLIB->irq_mask; + + nvic_irq_enable(NVIC_USB_LP_CAN_RX0); + USBLIB->state = USB_UNCONNECTED; +} + +/* choose addresses to give endpoints the max 64 byte buffers */ +#define BTABLE_ADDRESS 0x00 +static void usbReset(void) { + pInformation->Current_Configuration = 0; + + /* current feature is current bmAttributes */ + pInformation->Current_Feature = (USB_CONFIG_ATTR_BUSPOWERED | + USB_CONFIG_ATTR_SELF_POWERED); + + USB_BASE->BTABLE = BTABLE_ADDRESS; + + /* setup control endpoint 0 */ + usb_set_ep_type(USB_EP0, USB_EP_EP_TYPE_CONTROL); + usb_set_ep_tx_stat(USB_EP0, USB_EP_STAT_TX_STALL); + usb_set_ep_rx_addr(USB_EP0, VCOM_CTRL_RX_ADDR); + usb_set_ep_tx_addr(USB_EP0, VCOM_CTRL_TX_ADDR); + usb_clear_status_out(USB_EP0); + + usb_set_ep_rx_count(USB_EP0, pProperty->MaxPacketSize); + usb_set_ep_rx_stat(USB_EP0, USB_EP_STAT_RX_VALID); + + /* setup management endpoint 1 */ + usb_set_ep_type(VCOM_NOTIFICATION_ENDP, USB_EP_EP_TYPE_INTERRUPT); + usb_set_ep_tx_addr(VCOM_NOTIFICATION_ENDP, VCOM_NOTIFICATION_ADDR); + usb_set_ep_tx_stat(VCOM_NOTIFICATION_ENDP, USB_EP_STAT_TX_NAK); + usb_set_ep_rx_stat(VCOM_NOTIFICATION_ENDP, USB_EP_STAT_RX_DISABLED); + + /* TODO figure out differences in style between RX/TX EP setup */ + + /* set up data endpoint OUT (RX) */ + usb_set_ep_type(VCOM_RX_ENDP, USB_EP_EP_TYPE_BULK); + usb_set_ep_rx_addr(VCOM_RX_ENDP, 0x110); + usb_set_ep_rx_count(VCOM_RX_ENDP, 64); + usb_set_ep_rx_stat(VCOM_RX_ENDP, USB_EP_STAT_RX_VALID); + + /* set up data endpoint IN (TX) */ + usb_set_ep_type(VCOM_TX_ENDP, USB_EP_EP_TYPE_BULK); + usb_set_ep_tx_addr(VCOM_TX_ENDP, VCOM_TX_ADDR); + usb_set_ep_tx_stat(VCOM_TX_ENDP, USB_EP_STAT_TX_NAK); + usb_set_ep_rx_stat(VCOM_TX_ENDP, USB_EP_STAT_RX_DISABLED); + + USBLIB->state = USB_ATTACHED; + SetDeviceAddress(0); + + /* reset the rx fifo */ + recvBufIn = 0; + recvBufOut = 0; + maxNewBytes = VCOM_RX_EPSIZE; + countTx = 0; +} + +static RESULT usbDataSetup(uint8 request) { + uint8 *(*CopyRoutine)(uint16); + CopyRoutine = NULL; + + if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT)) { + switch (request) { + case (GET_LINE_CODING): + CopyRoutine = vcomGetSetLineCoding; + last_request = GET_LINE_CODING; + break; + case (SET_LINE_CODING): + CopyRoutine = vcomGetSetLineCoding; + last_request = SET_LINE_CODING; + break; + default: + break; + } + } + + if (CopyRoutine == NULL) { + return USB_UNSUPPORT; + } + + pInformation->Ctrl_Info.CopyData = CopyRoutine; + pInformation->Ctrl_Info.Usb_wOffset = 0; + (*CopyRoutine)(0); + return USB_SUCCESS; +} + +static RESULT usbNoDataSetup(uint8 request) { + uint8 new_signal; + + /* we support set com feature but dont handle it */ + if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT)) { + + switch (request) { + case (SET_COMM_FEATURE): + return USB_SUCCESS; + case (SET_CONTROL_LINE_STATE): + /* to reset the board, pull both dtr and rts low + then pulse dtr by itself */ + new_signal = (pInformation->USBwValues.bw.bb0 & + (CONTROL_LINE_DTR | CONTROL_LINE_RTS)); + line_dtr_rts = new_signal & 0x03; + + switch (reset_state) { + /* no default, covered enum */ + case DTR_UNSET: + if ((new_signal & CONTROL_LINE_DTR) == 0 ) { + reset_state = DTR_LOW; + } else { + reset_state = DTR_HIGH; + } + break; + + case DTR_HIGH: + if ((new_signal & CONTROL_LINE_DTR) == 0 ) { + reset_state = DTR_NEGEDGE; + } else { + reset_state = DTR_HIGH; + } + break; + + case DTR_NEGEDGE: + if ((new_signal & CONTROL_LINE_DTR) == 0 ) { + reset_state = DTR_LOW; + } else { + reset_state = DTR_HIGH; + } + break; + + case DTR_LOW: + if ((new_signal & CONTROL_LINE_DTR) == 0 ) { + reset_state = DTR_LOW; + } else { + reset_state = DTR_HIGH; + } + break; + } + + return USB_SUCCESS; + } + } + return USB_UNSUPPORT; +} + +static RESULT usbGetInterfaceSetting(uint8 interface, uint8 alt_setting) { + if (alt_setting > 0) { + return USB_UNSUPPORT; + } else if (interface > 1) { + return USB_UNSUPPORT; + } + + return USB_SUCCESS; +} + +static uint8* usbGetDeviceDescriptor(uint16 length) { + return Standard_GetDescriptorData(length, &Device_Descriptor); +} + +static uint8* usbGetConfigDescriptor(uint16 length) { + return Standard_GetDescriptorData(length, &Config_Descriptor); +} + +static uint8* usbGetStringDescriptor(uint16 length) { + uint8 wValue0 = pInformation->USBwValue0; + + if (wValue0 > 2) { + return NULL; + } + return Standard_GetDescriptorData(length, &String_Descriptor[wValue0]); +} + +static void usbSetConfiguration(void) { + if (pInformation->Current_Configuration != 0) { + USBLIB->state = USB_CONFIGURED; + } +} + +static void usbSetDeviceAddress(void) { + USBLIB->state = USB_ADDRESSED; +} + +#define RESET_DELAY 100000 +static void wait_reset(void) { + delay_us(RESET_DELAY); + nvic_sys_reset(); +} diff --git a/libmaple/usb/stm32f1/usb_descriptors.h b/libmaple/usb/stm32f1/usb_descriptors.h new file mode 100644 index 0000000..9bcb2b6 --- /dev/null +++ b/libmaple/usb/stm32f1/usb_descriptors.h @@ -0,0 +1,148 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2010 LeafLabs LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +#ifndef _USB_DESCRIPTORS_H_ +#define _USB_DESCRIPTORS_H_ + +#include + +#define USB_DESCRIPTOR_TYPE_DEVICE 0x01 +#define USB_DESCRIPTOR_TYPE_CONFIGURATION 0x02 +#define USB_DESCRIPTOR_TYPE_STRING 0x03 +#define USB_DESCRIPTOR_TYPE_INTERFACE 0x04 +#define USB_DESCRIPTOR_TYPE_ENDPOINT 0x05 + +#define USB_DEVICE_CLASS_CDC 0x02 +#define USB_DEVICE_SUBCLASS_CDC 0x00 +#define USB_INTERFACE_CLASS_CDC 0x02 +/* CDC Abstract Control Model */ +#define USB_INTERFACE_SUBCLASS_CDC_ACM 0x02 +#define USB_INTERFACE_CLASS_DIC 0x0A + +#define USB_CONFIG_ATTR_BUSPOWERED 0b10000000 +#define USB_CONFIG_ATTR_SELF_POWERED 0b11000000 + +#define EP_TYPE_INTERRUPT 0x03 +#define EP_TYPE_BULK 0x02 + +#define USB_DESCRIPTOR_ENDPOINT_IN 0x80 +#define USB_DESCRIPTOR_ENDPOINT_OUT 0x00 + +#define USB_DESCRIPTOR_STRING_LEN(x) (2 + (x << 1)) + +#if defined(__cplusplus) +extern "C" { +#endif + +#define USB_DESCRIPTOR_STRING(len) \ + struct { \ + uint8 bLength; \ + uint8 bDescriptorType; \ + uint16 bString[len]; \ + } __packed + +#define CDC_FUNCTIONAL_DESCRIPTOR_SIZE(DataSize) (3 + DataSize) +#define CDC_FUNCTIONAL_DESCRIPTOR(DataSize) \ + struct { \ + uint8 bLength; \ + uint8 bDescriptorType; \ + uint8 SubType; \ + uint8 Data[DataSize]; \ + } __packed + +typedef struct { + uint8 bLength; + uint8 bDescriptorType; + uint16 bcdUSB; + uint8 bDeviceClass; + uint8 bDeviceSubClass; + uint8 bDeviceProtocol; + uint8 bMaxPacketSize0; + uint16 idVendor; + uint16 idProduct; + uint16 bcdDevice; + uint8 iManufacturer; + uint8 iProduct; + uint8 iSerialNumber; + uint8 bNumConfigurations; +} __packed USB_Descriptor_Device; + +typedef struct { + uint8 bLength; + uint8 bDescriptorType; + uint16 wTotalLength; + uint8 bNumInterfaces; + uint8 bConfigurationValue; + uint8 iConfiguration; + uint8 bmAttributes; + uint8 bMaxPower; +} __packed USB_Descriptor_Config_Header; + +typedef struct { + uint8 bLength; + uint8 bDescriptorType; + uint8 bInterfaceNumber; + uint8 bAlternateSetting; + uint8 bNumEndpoints; + uint8 bInterfaceClass; + uint8 bInterfaceSubClass; + uint8 bInterfaceProtocol; + uint8 iInterface; +} __packed USB_Descriptor_Interface; + +typedef struct { + uint8 bLength; + uint8 bDescriptorType; + uint8 bEndpointAddress; + uint8 bmAttributes; + uint16 wMaxPacketSize; + uint8 bInterval; +} __packed USB_Descriptor_Endpoint; + +typedef struct { + USB_Descriptor_Config_Header Config_Header; + USB_Descriptor_Interface CCI_Interface; + CDC_FUNCTIONAL_DESCRIPTOR(2) CDC_Functional_IntHeader; + CDC_FUNCTIONAL_DESCRIPTOR(2) CDC_Functional_CallManagement; + CDC_FUNCTIONAL_DESCRIPTOR(1) CDC_Functional_ACM; + CDC_FUNCTIONAL_DESCRIPTOR(2) CDC_Functional_Union; + USB_Descriptor_Endpoint ManagementEndpoint; + USB_Descriptor_Interface DCI_Interface; + USB_Descriptor_Endpoint DataOutEndpoint; + USB_Descriptor_Endpoint DataInEndpoint; +} __packed USB_Descriptor_Config; + +typedef struct { + uint8 bLength; + uint8 bDescriptorType; + uint16 bString[]; +} USB_Descriptor_String; + +#if defined(__cplusplus) +} +#endif + +#endif diff --git a/libmaple/usb/stm32f1/usb_lib_globals.h b/libmaple/usb/stm32f1/usb_lib_globals.h new file mode 100644 index 0000000..1cd2754 --- /dev/null +++ b/libmaple/usb/stm32f1/usb_lib_globals.h @@ -0,0 +1,55 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2011 LeafLabs LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +#ifndef _USB_LIB_GLOBALS_H_ +#define _USB_LIB_GLOBALS_H_ + +/* usb_lib headers */ +#include "usb_type.h" +#include "usb_core.h" + +#ifdef __cplusplus +extern "C" { +#endif + +extern USER_STANDARD_REQUESTS User_Standard_Requests; +extern USER_STANDARD_REQUESTS *pUser_Standard_Requests; + +extern DEVICE_PROP Device_Property; +extern DEVICE_PROP *pProperty; + +extern DEVICE_INFO Device_Info; +extern DEVICE_INFO *pInformation; + +extern DEVICE Device_Table; +extern u16 SaveRState; +extern u16 SaveTState; + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/libmaple/usb/stm32f1/usb_reg_map.c b/libmaple/usb/stm32f1/usb_reg_map.c new file mode 100644 index 0000000..75562e1 --- /dev/null +++ b/libmaple/usb/stm32f1/usb_reg_map.c @@ -0,0 +1,79 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2011 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +#include "usb_reg_map.h" + +/* TODO these could use some improvement; they're fairly + * straightforward ports of the analogous ST code. The PMA blit + * routines in particular are obvious targets for performance + * measurement and tuning. */ + +void usb_copy_to_pma(const uint8 *buf, uint16 len, uint16 pma_offset) { + uint16 *dst = (uint16*)usb_pma_ptr(pma_offset); + uint16 n = len >> 1; + uint16 i; + for (i = 0; i < n; i++) { + *dst = (uint16)(*buf) | *(buf + 1) << 8; + buf += 2; + dst += 2; + } + if (len & 1) { + *dst = *buf; + } +} + +void usb_copy_from_pma(uint8 *buf, uint16 len, uint16 pma_offset) { + uint32 *src = (uint32*)usb_pma_ptr(pma_offset); + uint16 *dst = (uint16*)buf; + uint16 n = len >> 1; + uint16 i; + for (i = 0; i < n; i++) { + *dst++ = *src++; + } + if (len & 1) { + *dst = *src & 0xFF; + } +} + +void usb_set_ep_rx_count(uint8 ep, uint16 count) { + uint32 *rxc = usb_ep_rx_count_ptr(ep); + uint16 nblocks; + if (count > 62) { + /* use 32-byte memory block size */ + nblocks = count >> 5; + if ((count & 0x1F) == 0) { + nblocks--; + } + *rxc = (nblocks << 10) | 0x8000; + } else { + /* use 2-byte memory block size */ + nblocks = count >> 1; + if ((count & 0x1) != 0) { + nblocks++; + } + *rxc = nblocks << 10; + } +} diff --git a/libmaple/usb/stm32f1/usb_reg_map.h b/libmaple/usb/stm32f1/usb_reg_map.h new file mode 100644 index 0000000..ce80842 --- /dev/null +++ b/libmaple/usb/stm32f1/usb_reg_map.h @@ -0,0 +1,433 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2011 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +#include +#include + +#ifndef _USB_REG_MAP_H_ +#define _USB_REG_MAP_H_ + +/* TODO: + * - Pick one of "endp", "ep" "endpt" + */ + +/* + * Register map and base pointer + */ + +#define USB_NR_EP_REGS 8 + +/** USB register map type */ +typedef struct usb_reg_map { + __io uint32 EP[USB_NR_EP_REGS]; /**< Endpoint registers */ + const uint32 RESERVED[8]; /**< Reserved */ + __io uint32 CNTR; /**< Control register */ + __io uint32 ISTR; /**< Interrupt status register */ + __io uint32 FNR; /**< Frame number register */ + __io uint32 DADDR; /**< Device address */ + __io uint32 BTABLE; /**< @brief Buffer table address + * + * Address offset within the USB + * packet memory area which points + * to the base of the buffer + * descriptor table. Must be + * aligned to an 8 byte boundary. + */ +} usb_reg_map; + +/** USB register map base pointer */ +#define USB_BASE ((struct usb_reg_map*)0x40005C00) + +/* + * Register bit definitions + */ + +/* Endpoint registers (USB_EPnR) */ + +#define USB_EP_CTR_RX_BIT 15 +#define USB_EP_DTOG_RX_BIT 14 +#define USB_EP_SETUP_BIT 11 +#define USB_EP_EP_KIND_BIT 8 +#define USB_EP_CTR_TX_BIT 7 +#define USB_EP_DTOG_TX_BIT 6 + +#define USB_EP_CTR_RX BIT(USB_EP_CTR_RX_BIT) +#define USB_EP_DTOG_RX BIT(USB_EP_DTOG_RX_BIT) +#define USB_EP_STAT_RX (0x3 << 12) +#define USB_EP_STAT_RX_DISABLED (0x0 << 12) +#define USB_EP_STAT_RX_STALL (0x1 << 12) +#define USB_EP_STAT_RX_NAK (0x2 << 12) +#define USB_EP_STAT_RX_VALID (0x3 << 12) +#define USB_EP_SETUP BIT(USB_EP_SETUP_BIT) +#define USB_EP_EP_TYPE (0x3 << 9) +#define USB_EP_EP_TYPE_BULK (0x0 << 9) +#define USB_EP_EP_TYPE_CONTROL (0x1 << 9) +#define USB_EP_EP_TYPE_ISO (0x2 << 9) +#define USB_EP_EP_TYPE_INTERRUPT (0x3 << 9) +#define USB_EP_EP_KIND BIT(USB_EP_EP_KIND_BIT) +#define USB_EP_CTR_TX BIT(USB_EP_CTR_TX_BIT) +#define USB_EP_DTOG_TX BIT(USB_EP_DTOG_TX_BIT) +#define USB_EP_STAT_TX (0x3 << 4) +#define USB_EP_STAT_TX_DISABLED (0x0 << 4) +#define USB_EP_STAT_TX_STALL (0x1 << 4) +#define USB_EP_STAT_TX_NAK (0x2 << 4) +#define USB_EP_STAT_TX_VALID (0x3 << 4) +#define USB_EP_EA 0xF + +/* Control register (USB_CNTR) */ + +#define USB_CNTR_CTRM_BIT 15 +#define USB_CNTR_PMAOVERM_BIT 14 +#define USB_CNTR_ERRM_BIT 13 +#define USB_CNTR_WKUPM_BIT 12 +#define USB_CNTR_SUSPM_BIT 11 +#define USB_CNTR_RESETM_BIT 10 +#define USB_CNTR_SOFM_BIT 9 +#define USB_CNTR_ESOFM_BIT 8 +#define USB_CNTR_RESUME_BIT 4 +#define USB_CNTR_FSUSP_BIT 3 +#define USB_CNTR_LP_MODE_BIT 2 +#define USB_CNTR_PDWN_BIT 1 +#define USB_CNTR_FRES_BIT 0 + +#define USB_CNTR_CTRM BIT(USB_CNTR_CTRM_BIT) +#define USB_CNTR_PMAOVERM BIT(USB_CNTR_PMAOVERM_BIT) +#define USB_CNTR_ERRM BIT(USB_CNTR_ERRM_BIT) +#define USB_CNTR_WKUPM BIT(USB_CNTR_WKUPM_BIT) +#define USB_CNTR_SUSPM BIT(USB_CNTR_SUSPM_BIT) +#define USB_CNTR_RESETM BIT(USB_CNTR_RESETM_BIT) +#define USB_CNTR_SOFM BIT(USB_CNTR_SOFM_BIT) +#define USB_CNTR_ESOFM BIT(USB_CNTR_ESOFM_BIT) +#define USB_CNTR_RESUME BIT(USB_CNTR_RESUME_BIT) +#define USB_CNTR_FSUSP BIT(USB_CNTR_FSUSP_BIT) +#define USB_CNTR_LP_MODE BIT(USB_CNTR_LP_MODE_BIT) +#define USB_CNTR_PDWN BIT(USB_CNTR_PDWN_BIT) +#define USB_CNTR_FRES BIT(USB_CNTR_FRES_BIT) + +/* Interrupt status register (USB_ISTR) */ + +#define USB_ISTR_CTR_BIT 15 +#define USB_ISTR_PMAOVR_BIT 14 +#define USB_ISTR_ERR_BIT 13 +#define USB_ISTR_WKUP_BIT 12 +#define USB_ISTR_SUSP_BIT 11 +#define USB_ISTR_RESET_BIT 10 +#define USB_ISTR_SOF_BIT 9 +#define USB_ISTR_ESOF_BIT 8 +#define USB_ISTR_DIR_BIT 4 + +#define USB_ISTR_CTR BIT(USB_ISTR_CTR_BIT) +#define USB_ISTR_PMAOVR BIT(USB_ISTR_PMAOVR_BIT) +#define USB_ISTR_ERR BIT(USB_ISTR_ERR_BIT) +#define USB_ISTR_WKUP BIT(USB_ISTR_WKUP_BIT) +#define USB_ISTR_SUSP BIT(USB_ISTR_SUSP_BIT) +#define USB_ISTR_RESET BIT(USB_ISTR_RESET_BIT) +#define USB_ISTR_SOF BIT(USB_ISTR_SOF_BIT) +#define USB_ISTR_ESOF BIT(USB_ISTR_ESOF_BIT) +#define USB_ISTR_DIR BIT(USB_ISTR_DIR_BIT) +#define USB_ISTR_EP_ID 0xF + +/* Frame number register (USB_FNR) */ + +#define USB_FNR_RXDP_BIT 15 +#define USB_FNR_RXDM_BIT 14 +#define USB_FNR_LCK_BIT 13 + +#define USB_FNR_RXDP BIT(USB_FNR_RXDP_BIT) +#define USB_FNR_RXDM BIT(USB_FNR_RXDM_BIT) +#define USB_FNR_LCK BIT(USB_FNR_LCK_BIT) +#define USB_FNR_LSOF (0x3 << 11) +#define USB_FNR_FN 0x7FF + +/* Device address (USB_DADDR) */ + +#define USB_DADDR_EF_BIT 7 +#define USB_DADDR_ADD6_BIT 6 +#define USB_DADDR_ADD5_BIT 5 +#define USB_DADDR_ADD4_BIT 4 +#define USB_DADDR_ADD3_BIT 3 +#define USB_DADDR_ADD2_BIT 2 +#define USB_DADDR_ADD1_BIT 1 +#define USB_DADDR_ADD0_BIT 0 + +#define USB_DADDR_EF BIT(USB_DADDR_EF_BIT) +#define USB_DADDR_ADD6 BIT(USB_DADDR_ADD6_BIT) +#define USB_DADDR_ADD5 BIT(USB_DADDR_ADD5_BIT) +#define USB_DADDR_ADD4 BIT(USB_DADDR_ADD4_BIT) +#define USB_DADDR_ADD3 BIT(USB_DADDR_ADD3_BIT) +#define USB_DADDR_ADD2 BIT(USB_DADDR_ADD2_BIT) +#define USB_DADDR_ADD1 BIT(USB_DADDR_ADD1_BIT) +#define USB_DADDR_ADD0 BIT(USB_DADDR_ADD0_BIT) + +/* Buffer table address (USB_BTABLE) */ + +#define USB_BTABLE_BTABLE (0x1FFF << 3) + +/* + * Register convenience routines + */ + +#define __EP_CTR_NOP (USB_EP_CTR_RX | USB_EP_CTR_TX) +#define __EP_NONTOGGLE (USB_EP_CTR_RX | USB_EP_SETUP | \ + USB_EP_EP_TYPE | USB_EP_EP_KIND | \ + USB_EP_CTR_TX | USB_EP_EA) + +static inline void usb_clear_ctr_rx(uint8 ep) { + uint32 epr = USB_BASE->EP[ep]; + USB_BASE->EP[ep] = epr & ~USB_EP_CTR_RX & __EP_NONTOGGLE; +} + +static inline void usb_clear_ctr_tx(uint8 ep) { + uint32 epr = USB_BASE->EP[ep]; + USB_BASE->EP[ep] = epr & ~USB_EP_CTR_TX & __EP_NONTOGGLE; +} + +static inline void usb_set_ep_rx_stat(uint8 ep, uint32 status) { + uint32 epr = USB_BASE->EP[ep]; + epr &= ~(USB_EP_STAT_TX | USB_EP_DTOG_RX | USB_EP_DTOG_TX); + epr |= __EP_CTR_NOP; + epr ^= status; + USB_BASE->EP[ep] = epr; +} + +static inline void usb_set_ep_tx_stat(uint8 ep, uint32 status) { + uint32 epr = USB_BASE->EP[ep]; + epr &= ~(USB_EP_STAT_RX | USB_EP_DTOG_RX | USB_EP_DTOG_TX); + epr |= __EP_CTR_NOP; + epr ^= status; + USB_BASE->EP[ep] = epr; +} + +static inline void usb_set_ep_type(uint8 ep, uint32 type) { + uint32 epr = USB_BASE->EP[ep]; + epr &= ~USB_EP_EP_TYPE & __EP_NONTOGGLE; + epr |= type; + USB_BASE->EP[ep] = epr; +} + +static inline void usb_set_ep_kind(uint8 ep, uint32 kind) { + uint32 epr = USB_BASE->EP[ep]; + epr &= ~USB_EP_EP_KIND & __EP_NONTOGGLE; + epr |= kind; + USB_BASE->EP[ep] = epr; +} + +static inline void usb_clear_status_out(uint8 ep) { + usb_set_ep_kind(ep, 0); +} + +/* + * Packet memory area (PMA) base pointer + */ + +/** + * @brief USB packet memory area (PMA) base pointer. + * + * The USB PMA is SRAM shared between USB and CAN. The USB peripheral + * accesses this memory directly via the packet buffer interface. */ +#define USB_PMA_BASE ((__io void*)0x40006000) + +/* + * PMA conveniences + */ + +void usb_copy_to_pma(const uint8 *buf, uint16 len, uint16 pma_offset); +void usb_copy_from_pma(uint8 *buf, uint16 len, uint16 pma_offset); + +static inline void* usb_pma_ptr(uint32 offset) { + return (void*)(USB_PMA_BASE + 2 * offset); +} + +/* + * BTABLE + */ + +/* (Forward-declared) BTABLE entry. + * + * The BTABLE can be viewed as an array of usb_btable_ent values; + * these vary in structure according to the configuration of the + * endpoint. + */ +union usb_btable_ent; + +/* Bidirectional endpoint BTABLE entry */ +typedef struct usb_btable_bidi { + __io uint16 addr_tx; const uint16 PAD1; + __io uint16 count_tx; const uint16 PAD2; + __io uint16 addr_rx; const uint16 PAD3; + __io uint16 count_rx; const uint16 PAD4; +} usb_btable_bidi; + +/* Unidirectional receive-only endpoint BTABLE entry */ +typedef struct usb_btable_uni_rx { + __io uint16 empty1; const uint16 PAD1; + __io uint16 empty2; const uint16 PAD2; + __io uint16 addr_rx; const uint16 PAD3; + __io uint16 count_rx; const uint16 PAD4; +} usb_btable_uni_rx; + +/* Unidirectional transmit-only endpoint BTABLE entry */ +typedef struct usb_btable_uni_tx { + __io uint16 addr_tx; const uint16 PAD1; + __io uint16 count_tx; const uint16 PAD2; + __io uint16 empty1; const uint16 PAD3; + __io uint16 empty2; const uint16 PAD4; +} usb_btable_uni_tx; + +/* Double-buffered transmission endpoint BTABLE entry */ +typedef struct usb_btable_dbl_tx { + __io uint16 addr_tx0; const uint16 PAD1; + __io uint16 count_tx0; const uint16 PAD2; + __io uint16 addr_tx1; const uint16 PAD3; + __io uint16 count_tx1; const uint16 PAD4; +} usb_btable_dbl_tx; + +/* Double-buffered reception endpoint BTABLE entry */ +typedef struct usb_btable_dbl_rx { + __io uint16 addr_rx0; const uint16 PAD1; + __io uint16 count_rx0; const uint16 PAD2; + __io uint16 addr_rx1; const uint16 PAD3; + __io uint16 count_rx1; const uint16 PAD4; +} usb_btable_dbl_rx; + +/* TODO isochronous endpoint entries */ + +/* Definition for above forward-declared BTABLE entry. */ +typedef union usb_btable_ent { + usb_btable_bidi bidi; + usb_btable_uni_rx u_rx; + usb_btable_uni_tx u_tx; + usb_btable_dbl_tx d_tx; + usb_btable_dbl_rx d_rx; +} usb_btable_ent; + +/* + * BTABLE conveniences + */ + +/* TODO (?) Convert usages of the many (and lengthily-named) + * accessors/mutators below to just manipulating usb_btable_entry + * values. */ + +static inline uint32* usb_btable_ptr(uint32 offset) { + return (uint32*)usb_pma_ptr(USB_BASE->BTABLE + offset); +} + +static inline usb_btable_ent *usb_btable(void) { + return (usb_btable_ent*)usb_btable_ptr(0); +} + +/* TX address */ + +static inline uint32* usb_ep_tx_addr_ptr(uint8 ep) { + return usb_btable_ptr(ep * 8); +} + +static inline uint16 usb_get_ep_tx_addr(uint8 ep) { + return (uint16)*usb_ep_tx_addr_ptr(ep); +} + +static inline void usb_set_ep_tx_addr(uint8 ep, uint16 addr) { + uint32 *tx_addr = usb_ep_tx_addr_ptr(ep); + *tx_addr = addr & ~0x1; +} + +/* RX address */ + +static inline uint32* usb_ep_rx_addr_ptr(uint8 ep) { + return usb_btable_ptr(ep * 8 + 4); +} + +static inline uint16 usb_get_ep_rx_addr(uint8 ep) { + return (uint16)*usb_ep_rx_addr_ptr(ep); +} + +static inline void usb_set_ep_rx_addr(uint8 ep, uint16 addr) { + uint32 *rx_addr = usb_ep_rx_addr_ptr(ep); + *rx_addr = addr & ~0x1; +} + +/* TX count (doesn't cover double-buffered and isochronous in) */ + +static inline uint32* usb_ep_tx_count_ptr(uint8 ep) { + return usb_btable_ptr(ep * 8 + 2); +} + +static inline uint16 usb_get_ep_tx_count(uint8 ep) { + return (uint16)*usb_ep_tx_count_ptr(ep); +} + +static inline void usb_set_ep_tx_count(uint8 ep, uint16 count) { + uint32 *txc = usb_ep_tx_count_ptr(ep); + *txc = count; +} + +/* RX count */ + +static inline uint32* usb_ep_rx_count_ptr(uint8 ep) { + return usb_btable_ptr(ep * 8 + 6); +} + +static inline uint16 usb_get_ep_rx_count(uint8 ep) { + return (uint16)*usb_ep_rx_count_ptr(ep) & 0x3FF; +} + +void usb_set_ep_rx_count(uint8 ep, uint16 count); + +/* + * Misc. types + */ + +typedef enum usb_ep { + USB_EP0, + USB_EP1, + USB_EP2, + USB_EP3, + USB_EP4, + USB_EP5, + USB_EP6, + USB_EP7, +} usb_ep; + +typedef enum usb_ep_type { + USB_EP_T_CTL = USB_EP_EP_TYPE_CONTROL, + USB_EP_T_BULK = USB_EP_EP_TYPE_BULK, + USB_EP_T_INT = USB_EP_EP_TYPE_INTERRUPT, + USB_EP_T_ISO = USB_EP_EP_TYPE_ISO +} usb_ep_type; + +typedef enum usb_ep_stat { + USB_EP_ST_RX_DIS = USB_EP_STAT_RX_DISABLED, + USB_EP_ST_RX_STL = USB_EP_STAT_RX_STALL, + USB_EP_ST_RX_NAK = USB_EP_STAT_RX_NAK, + USB_EP_ST_RX_VAL = USB_EP_STAT_RX_VALID, + USB_EP_ST_TX_DIS = USB_EP_STAT_TX_DISABLED, + USB_EP_ST_TX_STL = USB_EP_STAT_TX_STALL, + USB_EP_ST_TX_NAK = USB_EP_STAT_TX_NAK, + USB_EP_ST_TX_VAL = USB_EP_STAT_TX_VALID +} usb_ep_stat; + +#endif diff --git a/libmaple/usb/usb.c b/libmaple/usb/usb.c deleted file mode 100644 index 0130bab..0000000 --- a/libmaple/usb/usb.c +++ /dev/null @@ -1,381 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2010 LeafLabs LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -/** - * @file libmaple/usb/usb.c - * @brief USB support. - * - * This is a mess. What we need almost amounts to a ground-up rewrite. - */ - -#include - -#include -#include - -/* Private headers */ -#include "usb_reg_map.h" -#include "usb_lib_globals.h" - -/* usb_lib headers */ -#include "usb_type.h" -#include "usb_core.h" - -static void dispatch_ctr_lp(void); - -/* - * usb_lib/ globals - */ - -uint16 SaveTState; /* caches TX status for later use */ -uint16 SaveRState; /* caches RX status for later use */ - -/* - * Other state - */ - -typedef enum { - RESUME_EXTERNAL, - RESUME_INTERNAL, - RESUME_LATER, - RESUME_WAIT, - RESUME_START, - RESUME_ON, - RESUME_OFF, - RESUME_ESOF -} RESUME_STATE; - -struct { - volatile RESUME_STATE eState; - volatile uint8 bESOFcnt; -} ResumeS; - -static usblib_dev usblib = { - .irq_mask = USB_ISR_MSK, - .state = USB_UNCONNECTED, - .clk_id = RCC_USB, -}; -usblib_dev *USBLIB = &usblib; - -/* - * Routines - */ - -void usb_init_usblib(usblib_dev *dev, - void (**ep_int_in)(void), - void (**ep_int_out)(void)) { - rcc_clk_enable(dev->clk_id); - - dev->ep_int_in = ep_int_in; - dev->ep_int_out = ep_int_out; - - /* usb_lib/ declares both and then assumes that pFoo points to Foo - * (even though the names don't always match), which is stupid for - * all of the obvious reasons, but whatever. Here we are. */ - pInformation = &Device_Info; - pProperty = &Device_Property; - pUser_Standard_Requests = &User_Standard_Requests; - - pInformation->ControlState = 2; /* FIXME [0.0.12] use - CONTROL_STATE enumerator */ - pProperty->Init(); -} - -static void usb_suspend(void) { - uint16 cntr; - - /* TODO decide if read/modify/write is really what we want - * (e.g. usb_resume_init() reconfigures CNTR). */ - cntr = USB_BASE->CNTR; - cntr |= USB_CNTR_FSUSP; - USB_BASE->CNTR = cntr; - cntr |= USB_CNTR_LP_MODE; - USB_BASE->CNTR = cntr; - - USBLIB->state = USB_SUSPENDED; -} - -static void usb_resume_init(void) { - uint16 cntr; - - cntr = USB_BASE->CNTR; - cntr &= ~USB_CNTR_LP_MODE; - USB_BASE->CNTR = cntr; - - /* Enable interrupt lines */ - USB_BASE->CNTR = USB_ISR_MSK; -} - -static void usb_resume(RESUME_STATE eResumeSetVal) { - uint16 cntr; - - if (eResumeSetVal != RESUME_ESOF) - ResumeS.eState = eResumeSetVal; - - switch (ResumeS.eState) - { - case RESUME_EXTERNAL: - usb_resume_init(); - ResumeS.eState = RESUME_OFF; - break; - case RESUME_INTERNAL: - usb_resume_init(); - ResumeS.eState = RESUME_START; - break; - case RESUME_LATER: - ResumeS.bESOFcnt = 2; - ResumeS.eState = RESUME_WAIT; - break; - case RESUME_WAIT: - ResumeS.bESOFcnt--; - if (ResumeS.bESOFcnt == 0) - ResumeS.eState = RESUME_START; - break; - case RESUME_START: - cntr = USB_BASE->CNTR; - cntr |= USB_CNTR_RESUME; - USB_BASE->CNTR = cntr; - ResumeS.eState = RESUME_ON; - ResumeS.bESOFcnt = 10; - break; - case RESUME_ON: - ResumeS.bESOFcnt--; - if (ResumeS.bESOFcnt == 0) { - cntr = USB_BASE->CNTR; - cntr &= ~USB_CNTR_RESUME; - USB_BASE->CNTR = cntr; - ResumeS.eState = RESUME_OFF; - } - break; - case RESUME_OFF: - case RESUME_ESOF: - default: - ResumeS.eState = RESUME_OFF; - break; - } -} - -#define SUSPEND_ENABLED 1 -void __irq_usb_lp_can_rx0(void) { - uint16 istr = USB_BASE->ISTR; - - /* Use USB_ISR_MSK to only include code for bits we care about. */ - -#if (USB_ISR_MSK & USB_ISTR_RESET) - if (istr & USB_ISTR_RESET & USBLIB->irq_mask) { - USB_BASE->ISTR = ~USB_ISTR_RESET; - pProperty->Reset(); - } -#endif - -#if (USB_ISR_MSK & USB_ISTR_PMAOVR) - if (istr & ISTR_PMAOVR & USBLIB->irq_mask) { - USB_BASE->ISTR = ~USB_ISTR_PMAOVR; - } -#endif - -#if (USB_ISR_MSK & USB_ISTR_ERR) - if (istr & USB_ISTR_ERR & USBLIB->irq_mask) { - USB_BASE->ISTR = ~USB_ISTR_ERR; - } -#endif - -#if (USB_ISR_MSK & USB_ISTR_WKUP) - if (istr & USB_ISTR_WKUP & USBLIB->irq_mask) { - USB_BASE->ISTR = ~USB_ISTR_WKUP; - usb_resume(RESUME_EXTERNAL); - } -#endif - -#if (USB_ISR_MSK & USB_ISTR_SUSP) - if (istr & USB_ISTR_SUSP & USBLIB->irq_mask) { - /* check if SUSPEND is possible */ - if (SUSPEND_ENABLED) { - usb_suspend(); - } else { - /* if not possible then resume after xx ms */ - usb_resume(RESUME_LATER); - } - /* clear of the ISTR bit must be done after setting of CNTR_FSUSP */ - USB_BASE->ISTR = ~USB_ISTR_SUSP; -} -#endif - -#if (USB_ISR_MSK & USB_ISTR_SOF) - if (istr & USB_ISTR_SOF & USBLIB->irq_mask) { - USB_BASE->ISTR = ~USB_ISTR_SOF; - } -#endif - -#if (USB_ISR_MSK & USB_ISTR_ESOF) - if (istr & USB_ISTR_ESOF & USBLIB->irq_mask) { - USB_BASE->ISTR = ~USB_ISTR_ESOF; - /* resume handling timing is made with ESOFs */ - usb_resume(RESUME_ESOF); /* request without change of the machine state */ - } -#endif - - /* - * Service the correct transfer interrupt. - */ - -#if (USB_ISR_MSK & USB_ISTR_CTR) - if (istr & USB_ISTR_CTR & USBLIB->irq_mask) { - dispatch_ctr_lp(); - } -#endif -} - -/* - * Auxiliary routines - */ - -static inline uint8 dispatch_endpt_zero(uint16 istr_dir); -static inline void dispatch_endpt(uint8 ep); -static inline void set_rx_tx_status0(uint16 rx, uint16 tx); - -static void handle_setup0(void); -static void handle_in0(void); -static void handle_out0(void); - -static void dispatch_ctr_lp() { - uint16 istr; - while (((istr = USB_BASE->ISTR) & USB_ISTR_CTR) != 0) { - /* TODO WTF, figure this out: RM0008 says CTR is read-only, - * but ST's firmware claims it's clear-only, and emphasizes - * the importance of clearing it in more than one place. */ - USB_BASE->ISTR = ~USB_ISTR_CTR; - uint8 ep_id = istr & USB_ISTR_EP_ID; - if (ep_id == 0) { - /* TODO figure out why it's OK to break out of the loop - * once we're done serving endpoint zero, but not okay if - * there are multiple nonzero endpoint transfers to - * handle. */ - if (dispatch_endpt_zero(istr & USB_ISTR_DIR)) - return; - } else { - dispatch_endpt(ep_id); - } - } -} - -/* FIXME Dataflow on endpoint 0 RX/TX status is based off of ST's - * code, and is ugly/confusing in its use of SaveRState/SaveTState. - * Fixing this requires filling in handle_in0(), handle_setup0(), - * handle_out0(). */ -static inline uint8 dispatch_endpt_zero(uint16 istr_dir) { - uint32 epr = (uint16)USB_BASE->EP[0]; - - if (!(epr & (USB_EP_CTR_TX | USB_EP_SETUP | USB_EP_CTR_RX))) { - return 0; - } - - /* Cache RX/TX statuses in SaveRState/SaveTState, respectively. - * The various handle_foo0() may clobber these values - * before we reset them at the end of this routine. */ - SaveRState = epr & USB_EP_STAT_RX; - SaveTState = epr & USB_EP_STAT_TX; - - /* Set actual RX/TX statuses to NAK while we're thinking */ - set_rx_tx_status0(USB_EP_STAT_RX_NAK, USB_EP_STAT_TX_NAK); - - if (istr_dir == 0) { - /* ST RM0008: "If DIR bit=0, CTR_TX bit is set in the USB_EPnR - * register related to the interrupting endpoint. The - * interrupting transaction is of IN type (data transmitted by - * the USB peripheral to the host PC)." */ - ASSERT_FAULT(epr & USB_EP_CTR_TX); - usb_clear_ctr_tx(USB_EP0); - handle_in0(); - } else { - /* RM0008: "If DIR bit=1, CTR_RX bit or both CTR_TX/CTR_RX - * are set in the USB_EPnR register related to the - * interrupting endpoint. The interrupting transaction is of - * OUT type (data received by the USB peripheral from the host - * PC) or two pending transactions are waiting to be - * processed." - * - * [mbolivar] Note how the following control flow (which - * replicates ST's) doesn't seem to actually handle both - * interrupts that are ostensibly pending when both CTR_RX and - * CTR_TX are set. - * - * TODO sort this mess out. - */ - if (epr & USB_EP_CTR_TX) { - usb_clear_ctr_tx(USB_EP0); - handle_in0(); - } else { /* SETUP or CTR_RX */ - /* SETUP is held constant while CTR_RX is set, so clear it - * either way */ - usb_clear_ctr_rx(USB_EP0); - if (epr & USB_EP_SETUP) { - handle_setup0(); - } else { /* CTR_RX */ - handle_out0(); - } - } - } - - set_rx_tx_status0(SaveRState, SaveTState); - return 1; -} - -static inline void dispatch_endpt(uint8 ep) { - uint32 epr = USB_BASE->EP[ep]; - /* If ISTR_CTR is set and the ISTR gave us this EP_ID to handle, - * then presumably at least one of CTR_RX and CTR_TX is set, but - * again, ST's control flow allows for the possibility of neither. - * - * TODO try to find out if neither being set is possible. */ - if (epr & USB_EP_CTR_RX) { - usb_clear_ctr_rx(ep); - (USBLIB->ep_int_out[ep - 1])(); - } - if (epr & USB_EP_CTR_TX) { - usb_clear_ctr_tx(ep); - (USBLIB->ep_int_in[ep - 1])(); - } -} - -static inline void set_rx_tx_status0(uint16 rx, uint16 tx) { - usb_set_ep_rx_stat(USB_EP0, rx); - usb_set_ep_tx_stat(USB_EP0, tx); -} - -/* TODO Rip out usb_lib/ dependency from the following functions: */ - -static void handle_setup0(void) { - Setup0_Process(); -} - -static void handle_in0(void) { - In0_Process(); -} - -static void handle_out0(void) { - Out0_Process(); -} diff --git a/libmaple/usb/usb_cdcacm.c b/libmaple/usb/usb_cdcacm.c deleted file mode 100644 index 6ef4806..0000000 --- a/libmaple/usb/usb_cdcacm.c +++ /dev/null @@ -1,762 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2011 LeafLabs LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -/** - * @file libmaple/usb/usb_cdcacm.c - * @brief USB CDC ACM (a.k.a. virtual serial terminal, VCOM). - * - * FIXME: this works on the STM32F1 USB peripherals, and probably no - * place else. Nonportable bits really need to be factored out, and - * the result made cleaner. - */ - -#include - -#include -#include -#include - -/* Private headers */ -#include "usb_descriptors.h" -#include "usb_lib_globals.h" -#include "usb_reg_map.h" - -/* usb_lib headers */ -#include "usb_type.h" -#include "usb_core.h" -#include "usb_def.h" - -/****************************************************************************** - ****************************************************************************** - *** - *** HACK ALERT! FIXME FIXME FIXME FIXME! - *** - *** A bunch of LeafLabs-specific configuration lives in here for - *** now. This mess REALLY needs to get teased apart, with - *** appropriate pieces moved into Wirish. - *** - ****************************************************************************** - *****************************************************************************/ - -#if !(defined(BOARD_maple) || defined(BOARD_maple_RET6) || \ - defined(BOARD_maple_mini) || defined(BOARD_maple_native)) -#warning USB CDC ACM relies on LeafLabs board-specific configuration.\ - You may have problems on non-LeafLabs boards. -#endif - -static void vcomDataTxCb(void); -static void vcomDataRxCb(void); -static uint8* vcomGetSetLineCoding(uint16); - -static void usbInit(void); -static void usbReset(void); -static RESULT usbDataSetup(uint8 request); -static RESULT usbNoDataSetup(uint8 request); -static RESULT usbGetInterfaceSetting(uint8 interface, uint8 alt_setting); -static uint8* usbGetDeviceDescriptor(uint16 length); -static uint8* usbGetConfigDescriptor(uint16 length); -static uint8* usbGetStringDescriptor(uint16 length); -static void usbSetConfiguration(void); -static void usbSetDeviceAddress(void); - -static void wait_reset(void); - -/* - * VCOM config - */ - -#define VCOM_CTRL_EPNUM 0x00 -#define VCOM_CTRL_RX_ADDR 0x40 -#define VCOM_CTRL_TX_ADDR 0x80 -#define VCOM_CTRL_EPSIZE 0x40 - -#define VCOM_TX_ENDP 1 -#define VCOM_TX_EPNUM 0x01 -#define VCOM_TX_ADDR 0xC0 -#define VCOM_TX_EPSIZE 0x40 - -#define VCOM_NOTIFICATION_ENDP 2 -#define VCOM_NOTIFICATION_EPNUM 0x02 -#define VCOM_NOTIFICATION_ADDR 0x100 -#define VCOM_NOTIFICATION_EPSIZE 0x40 - -#define VCOM_RX_ENDP 3 -#define VCOM_RX_EPNUM 0x03 -#define VCOM_RX_ADDR 0x110 -#define VCOM_RX_EPSIZE 0x40 -#define VCOM_RX_BUFLEN (VCOM_RX_EPSIZE*3) - -/* - * CDC ACM Requests - */ - -#define SET_LINE_CODING 0x20 -#define GET_LINE_CODING 0x21 -#define SET_COMM_FEATURE 0x02 -#define SET_CONTROL_LINE_STATE 0x22 -#define CONTROL_LINE_DTR (0x01) -#define CONTROL_LINE_RTS (0x02) - -/* - * Descriptors - */ - -#define USB_DEVICE_CLASS_CDC 0x02 -#define USB_DEVICE_SUBCLASS_CDC 0x00 -#define LEAFLABS_ID_VENDOR 0x1EAF -#define MAPLE_ID_PRODUCT 0x0004 -const USB_Descriptor_Device usbVcomDescriptor_Device = { - .bLength = sizeof(USB_Descriptor_Device), - .bDescriptorType = USB_DESCRIPTOR_TYPE_DEVICE, - .bcdUSB = 0x0200, - .bDeviceClass = USB_DEVICE_CLASS_CDC, - .bDeviceSubClass = USB_DEVICE_SUBCLASS_CDC, - .bDeviceProtocol = 0x00, - .bMaxPacketSize0 = 0x40, - .idVendor = LEAFLABS_ID_VENDOR, - .idProduct = MAPLE_ID_PRODUCT, - .bcdDevice = 0x0200, - .iManufacturer = 0x01, - .iProduct = 0x02, - .iSerialNumber = 0x00, - .bNumConfigurations = 0x01, -}; - -#define MAX_POWER (100 >> 1) -const USB_Descriptor_Config usbVcomDescriptor_Config = { - .Config_Header = { - .bLength = sizeof(USB_Descriptor_Config_Header), - .bDescriptorType = USB_DESCRIPTOR_TYPE_CONFIGURATION, - .wTotalLength = sizeof(USB_Descriptor_Config), - .bNumInterfaces = 0x02, - .bConfigurationValue = 0x01, - .iConfiguration = 0x00, - .bmAttributes = (USB_CONFIG_ATTR_BUSPOWERED | - USB_CONFIG_ATTR_SELF_POWERED), - .bMaxPower = MAX_POWER, - }, - - .CCI_Interface = { - .bLength = sizeof(USB_Descriptor_Interface), - .bDescriptorType = USB_DESCRIPTOR_TYPE_INTERFACE, - .bInterfaceNumber = 0x00, - .bAlternateSetting = 0x00, - .bNumEndpoints = 0x01, - .bInterfaceClass = USB_INTERFACE_CLASS_CDC, - .bInterfaceSubClass = USB_INTERFACE_SUBCLASS_CDC_ACM, - .bInterfaceProtocol = 0x01, /* Common AT Commands */ - .iInterface = 0x00, - }, - - .CDC_Functional_IntHeader = { - .bLength = CDC_FUNCTIONAL_DESCRIPTOR_SIZE(2), - .bDescriptorType = 0x24, - .SubType = 0x00, - .Data = {0x01, 0x10}, - }, - - .CDC_Functional_CallManagement = { - .bLength = CDC_FUNCTIONAL_DESCRIPTOR_SIZE(2), - .bDescriptorType = 0x24, - .SubType = 0x01, - .Data = {0x03, 0x01}, - }, - - .CDC_Functional_ACM = { - .bLength = CDC_FUNCTIONAL_DESCRIPTOR_SIZE(1), - .bDescriptorType = 0x24, - .SubType = 0x02, - .Data = {0x06}, - }, - - .CDC_Functional_Union = { - .bLength = CDC_FUNCTIONAL_DESCRIPTOR_SIZE(2), - .bDescriptorType = 0x24, - .SubType = 0x06, - .Data = {0x00, 0x01}, - }, - - .ManagementEndpoint = { - .bLength = sizeof(USB_Descriptor_Endpoint), - .bDescriptorType = USB_DESCRIPTOR_TYPE_ENDPOINT, - .bEndpointAddress = (USB_DESCRIPTOR_ENDPOINT_IN | - VCOM_NOTIFICATION_EPNUM), - .bmAttributes = EP_TYPE_INTERRUPT, - .wMaxPacketSize = VCOM_NOTIFICATION_EPSIZE, - .bInterval = 0xFF, - }, - - .DCI_Interface = { - .bLength = sizeof(USB_Descriptor_Interface), - .bDescriptorType = USB_DESCRIPTOR_TYPE_INTERFACE, - .bInterfaceNumber = 0x01, - .bAlternateSetting = 0x00, - .bNumEndpoints = 0x02, - .bInterfaceClass = USB_INTERFACE_CLASS_DIC, - .bInterfaceSubClass = 0x00, /* None */ - .bInterfaceProtocol = 0x00, /* None */ - .iInterface = 0x00, - }, - - .DataOutEndpoint = { - .bLength = sizeof(USB_Descriptor_Endpoint), - .bDescriptorType = USB_DESCRIPTOR_TYPE_ENDPOINT, - .bEndpointAddress = (USB_DESCRIPTOR_ENDPOINT_OUT | VCOM_RX_EPNUM), - .bmAttributes = EP_TYPE_BULK, - .wMaxPacketSize = VCOM_RX_EPSIZE, - .bInterval = 0x00, - }, - - .DataInEndpoint = { - .bLength = sizeof(USB_Descriptor_Endpoint), - .bDescriptorType = USB_DESCRIPTOR_TYPE_ENDPOINT, - .bEndpointAddress = (USB_DESCRIPTOR_ENDPOINT_IN | VCOM_TX_EPNUM), - .bmAttributes = EP_TYPE_BULK, - .wMaxPacketSize = VCOM_TX_EPSIZE, - .bInterval = 0x00, - }, -}; - -/* - String Identifiers: - - we may choose to specify any or none of the following string - identifiers: - - iManufacturer: LeafLabs - iProduct: Maple - iSerialNumber: NONE - iConfiguration: NONE - iInterface(CCI): NONE - iInterface(DCI): NONE - - additionally we must provide the unicode language identifier, - which is 0x0409 for US English -*/ - -const uint8 usbVcomDescriptor_LangID[USB_DESCRIPTOR_STRING_LEN(1)] = { - USB_DESCRIPTOR_STRING_LEN(1), - USB_DESCRIPTOR_TYPE_STRING, - 0x09, - 0x04, -}; - -const uint8 usbVcomDescriptor_iManufacturer[USB_DESCRIPTOR_STRING_LEN(8)] = { - USB_DESCRIPTOR_STRING_LEN(8), - USB_DESCRIPTOR_TYPE_STRING, - 'L', 0, 'e', 0, 'a', 0, 'f', 0, - 'L', 0, 'a', 0, 'b', 0, 's', 0, -}; - -const uint8 usbVcomDescriptor_iProduct[USB_DESCRIPTOR_STRING_LEN(8)] = { - USB_DESCRIPTOR_STRING_LEN(8), - USB_DESCRIPTOR_TYPE_STRING, - 'M', 0, 'a', 0, 'p', 0, 'l', 0, - 'e', 0, ' ', 0, ' ', 0, ' ', 0 -}; - -ONE_DESCRIPTOR Device_Descriptor = { - (uint8*)&usbVcomDescriptor_Device, - sizeof(USB_Descriptor_Device) -}; - -ONE_DESCRIPTOR Config_Descriptor = { - (uint8*)&usbVcomDescriptor_Config, - sizeof(USB_Descriptor_Config) -}; - -ONE_DESCRIPTOR String_Descriptor[3] = { - {(uint8*)&usbVcomDescriptor_LangID, USB_DESCRIPTOR_STRING_LEN(1)}, - {(uint8*)&usbVcomDescriptor_iManufacturer,USB_DESCRIPTOR_STRING_LEN(8)}, - {(uint8*)&usbVcomDescriptor_iProduct, USB_DESCRIPTOR_STRING_LEN(8)} -}; - -/* - * Etc. - */ - -typedef enum { - DTR_UNSET, - DTR_HIGH, - DTR_NEGEDGE, - DTR_LOW -} RESET_STATE; - -typedef struct { - uint32 bitrate; - uint8 format; - uint8 paritytype; - uint8 datatype; -} USB_Line_Coding; - -uint8 last_request = 0; -USB_Line_Coding line_coding = { - .bitrate = 115200, - .format = 0x00, /* stop bits-1 */ - .paritytype = 0x00, - .datatype = 0x08 -}; -uint8 vcomBufferRx[VCOM_RX_BUFLEN]; -volatile uint32 countTx = 0; -volatile uint32 recvBufIn = 0; -volatile uint32 recvBufOut = 0; -volatile uint32 maxNewBytes = VCOM_RX_BUFLEN; -volatile uint32 newBytes = 0; -RESET_STATE reset_state = DTR_UNSET; -uint8 line_dtr_rts = 0; - -/* - * Endpoint callbacks - */ - -static void (*ep_int_in[7])(void) = - {vcomDataTxCb, - NOP_Process, - NOP_Process, - NOP_Process, - NOP_Process, - NOP_Process, - NOP_Process}; - -static void (*ep_int_out[7])(void) = - {NOP_Process, - NOP_Process, - vcomDataRxCb, - NOP_Process, - NOP_Process, - NOP_Process, - NOP_Process}; - -/* - * Globals required by usb_lib/ - */ - -#define NUM_ENDPTS 0x04 -DEVICE Device_Table = { - .Total_Endpoint = NUM_ENDPTS, - .Total_Configuration = 1 -}; - -#define MAX_PACKET_SIZE 0x40 /* 64B, maximum for USB FS Devices */ -DEVICE_PROP Device_Property = { - .Init = usbInit, - .Reset = usbReset, - .Process_Status_IN = NOP_Process, - .Process_Status_OUT = NOP_Process, - .Class_Data_Setup = usbDataSetup, - .Class_NoData_Setup = usbNoDataSetup, - .Class_Get_Interface_Setting = usbGetInterfaceSetting, - .GetDeviceDescriptor = usbGetDeviceDescriptor, - .GetConfigDescriptor = usbGetConfigDescriptor, - .GetStringDescriptor = usbGetStringDescriptor, - .RxEP_buffer = NULL, - .MaxPacketSize = MAX_PACKET_SIZE -}; - -USER_STANDARD_REQUESTS User_Standard_Requests = { - .User_GetConfiguration = NOP_Process, - .User_SetConfiguration = usbSetConfiguration, - .User_GetInterface = NOP_Process, - .User_SetInterface = NOP_Process, - .User_GetStatus = NOP_Process, - .User_ClearFeature = NOP_Process, - .User_SetEndPointFeature = NOP_Process, - .User_SetDeviceFeature = NOP_Process, - .User_SetDeviceAddress = usbSetDeviceAddress -}; - -/* - * CDC ACM interface - */ - -void usb_cdcacm_enable(gpio_dev *disc_dev, uint8 disc_bit) { - /* Present ourselves to the host */ - gpio_set_mode(disc_dev, disc_bit, GPIO_OUTPUT_PP); - gpio_write_bit(disc_dev, disc_bit, 0); // presents us to the host - - /* initialize USB peripheral */ - usb_init_usblib(USBLIB, ep_int_in, ep_int_out); -} - -void usb_cdcacm_disable(gpio_dev *disc_dev, uint8 disc_bit) { - // These are just guesses about how to do this, but it seems to work. - // TODO: verify this with USB spec - nvic_irq_disable(NVIC_USB_LP_CAN_RX0); - gpio_write_bit(disc_dev, disc_bit, 1); -} - -void usb_cdcacm_putc(char ch) { - while (!usb_cdcacm_tx((uint8*)&ch, 1)) - ; -} - -/* This function is non-blocking. - * - * It copies data from a usercode buffer into the USB peripheral TX - * buffer and return the number placed in that buffer. - */ -uint32 usb_cdcacm_tx(const uint8* buf, uint32 len) { - /* Last transmission hasn't finished, abort */ - if (countTx) { - return 0; - } - - // We can only put VCOM_TX_EPSIZE bytes in the buffer - /* FIXME then why are we only copying half as many? */ - if (len > VCOM_TX_EPSIZE / 2) { - len = VCOM_TX_EPSIZE / 2; - } - - // Try to load some bytes if we can - if (len) { - usb_copy_to_pma(buf, len, VCOM_TX_ADDR); - usb_set_ep_tx_count(VCOM_TX_ENDP, len); - countTx += len; - usb_set_ep_tx_stat(VCOM_TX_ENDP, USB_EP_STAT_TX_VALID); - } - - return len; -} - -/* returns the number of available bytes are in the recv FIFO */ -uint32 usb_cdcacm_data_available(void) { - return newBytes; -} - -uint16 usb_cdcacm_get_pending() { - return countTx; -} - -/* Nonblocking byte receive. - * - * Copies up to len bytes from our private data buffer (*NOT* the PMA) - * into buf and deq's the FIFO. */ -uint32 usb_cdcacm_rx(uint8* buf, uint32 len) { - static int offset = 0; - int i; - - if (len > newBytes) { - len = newBytes; - } - - for (i = 0; i < len; i++) { - buf[i] = vcomBufferRx[i + offset]; - } - - newBytes -= len; - offset += len; - - /* Re-enable the RX endpoint, which we had set to receive 0 bytes */ - if (newBytes == 0) { - usb_set_ep_rx_count(VCOM_RX_ENDP, VCOM_RX_EPSIZE); - usb_set_ep_rx_stat(VCOM_RX_ENDP, USB_EP_STAT_RX_VALID); - offset = 0; - } - - return len; -} - -uint8 usb_cdcacm_get_dtr() { - return ((line_dtr_rts & CONTROL_LINE_DTR) != 0); -} - -uint8 usb_cdcacm_get_rts() { - return ((line_dtr_rts & CONTROL_LINE_RTS) != 0); -} - -/* - * Callbacks - */ - -static void vcomDataTxCb(void) { - /* assumes tx transactions are atomic 64 bytes (nearly certain they are) */ - countTx = 0; -} - -#define EXC_RETURN 0xFFFFFFF9 -#define DEFAULT_CPSR 0x61000000 -static void vcomDataRxCb(void) { - /* FIXME this is mad buggy */ - - /* setEPRxCount on the previous cycle should garuntee - we havnt received more bytes than we can fit */ - newBytes = usb_get_ep_rx_count(VCOM_RX_ENDP); - usb_set_ep_rx_stat(VCOM_RX_ENDP, USB_EP_STAT_RX_NAK); - - /* magic number, {0x31, 0x45, 0x41, 0x46} is "1EAF" */ - uint8 chkBuf[4]; - uint8 cmpBuf[4] = {0x31, 0x45, 0x41, 0x46}; - if (reset_state == DTR_NEGEDGE) { - reset_state = DTR_LOW; - - if (newBytes >= 4) { - unsigned int target = (unsigned int)wait_reset | 0x1; - - usb_copy_from_pma(chkBuf, 4, VCOM_RX_ADDR); - - int i; - USB_Bool cmpMatch = TRUE; - for (i = 0; i < 4; i++) { - if (chkBuf[i] != cmpBuf[i]) { - cmpMatch = FALSE; - } - } - - if (cmpMatch) { - asm volatile("mov r0, %[stack_top] \n\t" // Reset stack - "mov sp, r0 \n\t" - "mov r0, #1 \n\t" - "mov r1, %[target_addr] \n\t" - "mov r2, %[cpsr] \n\t" - "push {r2} \n\t" // Fake xPSR - "push {r1} \n\t" // PC target addr - "push {r0} \n\t" // Fake LR - "push {r0} \n\t" // Fake R12 - "push {r0} \n\t" // Fake R3 - "push {r0} \n\t" // Fake R2 - "push {r0} \n\t" // Fake R1 - "push {r0} \n\t" // Fake R0 - "mov lr, %[exc_return] \n\t" - "bx lr" - : - : [stack_top] "r" (STACK_TOP), - [target_addr] "r" (target), - [exc_return] "r" (EXC_RETURN), - [cpsr] "r" (DEFAULT_CPSR) - : "r0", "r1", "r2"); - /* should never get here */ - } - } - } - - usb_copy_from_pma(vcomBufferRx, newBytes, VCOM_RX_ADDR); -} - -static uint8* vcomGetSetLineCoding(uint16 length) { - if (length == 0) { - pInformation->Ctrl_Info.Usb_wLength = sizeof(USB_Line_Coding); - } - return (uint8*)&line_coding; -} - -static void usbInit(void) { - pInformation->Current_Configuration = 0; - - USB_BASE->CNTR = USB_CNTR_FRES; - - USBLIB->irq_mask = 0; - USB_BASE->CNTR = USBLIB->irq_mask; - USB_BASE->ISTR = 0; - USBLIB->irq_mask = USB_CNTR_RESETM | USB_CNTR_SUSPM | USB_CNTR_WKUPM; - USB_BASE->CNTR = USBLIB->irq_mask; - - USB_BASE->ISTR = 0; - USBLIB->irq_mask = USB_ISR_MSK; - USB_BASE->CNTR = USBLIB->irq_mask; - - nvic_irq_enable(NVIC_USB_LP_CAN_RX0); - USBLIB->state = USB_UNCONNECTED; -} - -/* choose addresses to give endpoints the max 64 byte buffers */ -#define BTABLE_ADDRESS 0x00 -static void usbReset(void) { - pInformation->Current_Configuration = 0; - - /* current feature is current bmAttributes */ - pInformation->Current_Feature = (USB_CONFIG_ATTR_BUSPOWERED | - USB_CONFIG_ATTR_SELF_POWERED); - - USB_BASE->BTABLE = BTABLE_ADDRESS; - - /* setup control endpoint 0 */ - usb_set_ep_type(USB_EP0, USB_EP_EP_TYPE_CONTROL); - usb_set_ep_tx_stat(USB_EP0, USB_EP_STAT_TX_STALL); - usb_set_ep_rx_addr(USB_EP0, VCOM_CTRL_RX_ADDR); - usb_set_ep_tx_addr(USB_EP0, VCOM_CTRL_TX_ADDR); - usb_clear_status_out(USB_EP0); - - usb_set_ep_rx_count(USB_EP0, pProperty->MaxPacketSize); - usb_set_ep_rx_stat(USB_EP0, USB_EP_STAT_RX_VALID); - - /* setup management endpoint 1 */ - usb_set_ep_type(VCOM_NOTIFICATION_ENDP, USB_EP_EP_TYPE_INTERRUPT); - usb_set_ep_tx_addr(VCOM_NOTIFICATION_ENDP, VCOM_NOTIFICATION_ADDR); - usb_set_ep_tx_stat(VCOM_NOTIFICATION_ENDP, USB_EP_STAT_TX_NAK); - usb_set_ep_rx_stat(VCOM_NOTIFICATION_ENDP, USB_EP_STAT_RX_DISABLED); - - /* TODO figure out differences in style between RX/TX EP setup */ - - /* set up data endpoint OUT (RX) */ - usb_set_ep_type(VCOM_RX_ENDP, USB_EP_EP_TYPE_BULK); - usb_set_ep_rx_addr(VCOM_RX_ENDP, 0x110); - usb_set_ep_rx_count(VCOM_RX_ENDP, 64); - usb_set_ep_rx_stat(VCOM_RX_ENDP, USB_EP_STAT_RX_VALID); - - /* set up data endpoint IN (TX) */ - usb_set_ep_type(VCOM_TX_ENDP, USB_EP_EP_TYPE_BULK); - usb_set_ep_tx_addr(VCOM_TX_ENDP, VCOM_TX_ADDR); - usb_set_ep_tx_stat(VCOM_TX_ENDP, USB_EP_STAT_TX_NAK); - usb_set_ep_rx_stat(VCOM_TX_ENDP, USB_EP_STAT_RX_DISABLED); - - USBLIB->state = USB_ATTACHED; - SetDeviceAddress(0); - - /* reset the rx fifo */ - recvBufIn = 0; - recvBufOut = 0; - maxNewBytes = VCOM_RX_EPSIZE; - countTx = 0; -} - -static RESULT usbDataSetup(uint8 request) { - uint8 *(*CopyRoutine)(uint16); - CopyRoutine = NULL; - - if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT)) { - switch (request) { - case (GET_LINE_CODING): - CopyRoutine = vcomGetSetLineCoding; - last_request = GET_LINE_CODING; - break; - case (SET_LINE_CODING): - CopyRoutine = vcomGetSetLineCoding; - last_request = SET_LINE_CODING; - break; - default: - break; - } - } - - if (CopyRoutine == NULL) { - return USB_UNSUPPORT; - } - - pInformation->Ctrl_Info.CopyData = CopyRoutine; - pInformation->Ctrl_Info.Usb_wOffset = 0; - (*CopyRoutine)(0); - return USB_SUCCESS; -} - -static RESULT usbNoDataSetup(uint8 request) { - uint8 new_signal; - - /* we support set com feature but dont handle it */ - if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT)) { - - switch (request) { - case (SET_COMM_FEATURE): - return USB_SUCCESS; - case (SET_CONTROL_LINE_STATE): - /* to reset the board, pull both dtr and rts low - then pulse dtr by itself */ - new_signal = (pInformation->USBwValues.bw.bb0 & - (CONTROL_LINE_DTR | CONTROL_LINE_RTS)); - line_dtr_rts = new_signal & 0x03; - - switch (reset_state) { - /* no default, covered enum */ - case DTR_UNSET: - if ((new_signal & CONTROL_LINE_DTR) == 0 ) { - reset_state = DTR_LOW; - } else { - reset_state = DTR_HIGH; - } - break; - - case DTR_HIGH: - if ((new_signal & CONTROL_LINE_DTR) == 0 ) { - reset_state = DTR_NEGEDGE; - } else { - reset_state = DTR_HIGH; - } - break; - - case DTR_NEGEDGE: - if ((new_signal & CONTROL_LINE_DTR) == 0 ) { - reset_state = DTR_LOW; - } else { - reset_state = DTR_HIGH; - } - break; - - case DTR_LOW: - if ((new_signal & CONTROL_LINE_DTR) == 0 ) { - reset_state = DTR_LOW; - } else { - reset_state = DTR_HIGH; - } - break; - } - - return USB_SUCCESS; - } - } - return USB_UNSUPPORT; -} - -static RESULT usbGetInterfaceSetting(uint8 interface, uint8 alt_setting) { - if (alt_setting > 0) { - return USB_UNSUPPORT; - } else if (interface > 1) { - return USB_UNSUPPORT; - } - - return USB_SUCCESS; -} - -static uint8* usbGetDeviceDescriptor(uint16 length) { - return Standard_GetDescriptorData(length, &Device_Descriptor); -} - -static uint8* usbGetConfigDescriptor(uint16 length) { - return Standard_GetDescriptorData(length, &Config_Descriptor); -} - -static uint8* usbGetStringDescriptor(uint16 length) { - uint8 wValue0 = pInformation->USBwValue0; - - if (wValue0 > 2) { - return NULL; - } - return Standard_GetDescriptorData(length, &String_Descriptor[wValue0]); -} - -static void usbSetConfiguration(void) { - if (pInformation->Current_Configuration != 0) { - USBLIB->state = USB_CONFIGURED; - } -} - -static void usbSetDeviceAddress(void) { - USBLIB->state = USB_ADDRESSED; -} - -#define RESET_DELAY 100000 -static void wait_reset(void) { - delay_us(RESET_DELAY); - nvic_sys_reset(); -} diff --git a/libmaple/usb/usb_descriptors.h b/libmaple/usb/usb_descriptors.h deleted file mode 100644 index 9bcb2b6..0000000 --- a/libmaple/usb/usb_descriptors.h +++ /dev/null @@ -1,148 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2010 LeafLabs LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -#ifndef _USB_DESCRIPTORS_H_ -#define _USB_DESCRIPTORS_H_ - -#include - -#define USB_DESCRIPTOR_TYPE_DEVICE 0x01 -#define USB_DESCRIPTOR_TYPE_CONFIGURATION 0x02 -#define USB_DESCRIPTOR_TYPE_STRING 0x03 -#define USB_DESCRIPTOR_TYPE_INTERFACE 0x04 -#define USB_DESCRIPTOR_TYPE_ENDPOINT 0x05 - -#define USB_DEVICE_CLASS_CDC 0x02 -#define USB_DEVICE_SUBCLASS_CDC 0x00 -#define USB_INTERFACE_CLASS_CDC 0x02 -/* CDC Abstract Control Model */ -#define USB_INTERFACE_SUBCLASS_CDC_ACM 0x02 -#define USB_INTERFACE_CLASS_DIC 0x0A - -#define USB_CONFIG_ATTR_BUSPOWERED 0b10000000 -#define USB_CONFIG_ATTR_SELF_POWERED 0b11000000 - -#define EP_TYPE_INTERRUPT 0x03 -#define EP_TYPE_BULK 0x02 - -#define USB_DESCRIPTOR_ENDPOINT_IN 0x80 -#define USB_DESCRIPTOR_ENDPOINT_OUT 0x00 - -#define USB_DESCRIPTOR_STRING_LEN(x) (2 + (x << 1)) - -#if defined(__cplusplus) -extern "C" { -#endif - -#define USB_DESCRIPTOR_STRING(len) \ - struct { \ - uint8 bLength; \ - uint8 bDescriptorType; \ - uint16 bString[len]; \ - } __packed - -#define CDC_FUNCTIONAL_DESCRIPTOR_SIZE(DataSize) (3 + DataSize) -#define CDC_FUNCTIONAL_DESCRIPTOR(DataSize) \ - struct { \ - uint8 bLength; \ - uint8 bDescriptorType; \ - uint8 SubType; \ - uint8 Data[DataSize]; \ - } __packed - -typedef struct { - uint8 bLength; - uint8 bDescriptorType; - uint16 bcdUSB; - uint8 bDeviceClass; - uint8 bDeviceSubClass; - uint8 bDeviceProtocol; - uint8 bMaxPacketSize0; - uint16 idVendor; - uint16 idProduct; - uint16 bcdDevice; - uint8 iManufacturer; - uint8 iProduct; - uint8 iSerialNumber; - uint8 bNumConfigurations; -} __packed USB_Descriptor_Device; - -typedef struct { - uint8 bLength; - uint8 bDescriptorType; - uint16 wTotalLength; - uint8 bNumInterfaces; - uint8 bConfigurationValue; - uint8 iConfiguration; - uint8 bmAttributes; - uint8 bMaxPower; -} __packed USB_Descriptor_Config_Header; - -typedef struct { - uint8 bLength; - uint8 bDescriptorType; - uint8 bInterfaceNumber; - uint8 bAlternateSetting; - uint8 bNumEndpoints; - uint8 bInterfaceClass; - uint8 bInterfaceSubClass; - uint8 bInterfaceProtocol; - uint8 iInterface; -} __packed USB_Descriptor_Interface; - -typedef struct { - uint8 bLength; - uint8 bDescriptorType; - uint8 bEndpointAddress; - uint8 bmAttributes; - uint16 wMaxPacketSize; - uint8 bInterval; -} __packed USB_Descriptor_Endpoint; - -typedef struct { - USB_Descriptor_Config_Header Config_Header; - USB_Descriptor_Interface CCI_Interface; - CDC_FUNCTIONAL_DESCRIPTOR(2) CDC_Functional_IntHeader; - CDC_FUNCTIONAL_DESCRIPTOR(2) CDC_Functional_CallManagement; - CDC_FUNCTIONAL_DESCRIPTOR(1) CDC_Functional_ACM; - CDC_FUNCTIONAL_DESCRIPTOR(2) CDC_Functional_Union; - USB_Descriptor_Endpoint ManagementEndpoint; - USB_Descriptor_Interface DCI_Interface; - USB_Descriptor_Endpoint DataOutEndpoint; - USB_Descriptor_Endpoint DataInEndpoint; -} __packed USB_Descriptor_Config; - -typedef struct { - uint8 bLength; - uint8 bDescriptorType; - uint16 bString[]; -} USB_Descriptor_String; - -#if defined(__cplusplus) -} -#endif - -#endif diff --git a/libmaple/usb/usb_lib_globals.h b/libmaple/usb/usb_lib_globals.h deleted file mode 100644 index 1cd2754..0000000 --- a/libmaple/usb/usb_lib_globals.h +++ /dev/null @@ -1,55 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2011 LeafLabs LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -#ifndef _USB_LIB_GLOBALS_H_ -#define _USB_LIB_GLOBALS_H_ - -/* usb_lib headers */ -#include "usb_type.h" -#include "usb_core.h" - -#ifdef __cplusplus -extern "C" { -#endif - -extern USER_STANDARD_REQUESTS User_Standard_Requests; -extern USER_STANDARD_REQUESTS *pUser_Standard_Requests; - -extern DEVICE_PROP Device_Property; -extern DEVICE_PROP *pProperty; - -extern DEVICE_INFO Device_Info; -extern DEVICE_INFO *pInformation; - -extern DEVICE Device_Table; -extern u16 SaveRState; -extern u16 SaveTState; - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/libmaple/usb/usb_reg_map.c b/libmaple/usb/usb_reg_map.c deleted file mode 100644 index 75562e1..0000000 --- a/libmaple/usb/usb_reg_map.c +++ /dev/null @@ -1,79 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2011 LeafLabs, LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -#include "usb_reg_map.h" - -/* TODO these could use some improvement; they're fairly - * straightforward ports of the analogous ST code. The PMA blit - * routines in particular are obvious targets for performance - * measurement and tuning. */ - -void usb_copy_to_pma(const uint8 *buf, uint16 len, uint16 pma_offset) { - uint16 *dst = (uint16*)usb_pma_ptr(pma_offset); - uint16 n = len >> 1; - uint16 i; - for (i = 0; i < n; i++) { - *dst = (uint16)(*buf) | *(buf + 1) << 8; - buf += 2; - dst += 2; - } - if (len & 1) { - *dst = *buf; - } -} - -void usb_copy_from_pma(uint8 *buf, uint16 len, uint16 pma_offset) { - uint32 *src = (uint32*)usb_pma_ptr(pma_offset); - uint16 *dst = (uint16*)buf; - uint16 n = len >> 1; - uint16 i; - for (i = 0; i < n; i++) { - *dst++ = *src++; - } - if (len & 1) { - *dst = *src & 0xFF; - } -} - -void usb_set_ep_rx_count(uint8 ep, uint16 count) { - uint32 *rxc = usb_ep_rx_count_ptr(ep); - uint16 nblocks; - if (count > 62) { - /* use 32-byte memory block size */ - nblocks = count >> 5; - if ((count & 0x1F) == 0) { - nblocks--; - } - *rxc = (nblocks << 10) | 0x8000; - } else { - /* use 2-byte memory block size */ - nblocks = count >> 1; - if ((count & 0x1) != 0) { - nblocks++; - } - *rxc = nblocks << 10; - } -} diff --git a/libmaple/usb/usb_reg_map.h b/libmaple/usb/usb_reg_map.h deleted file mode 100644 index ce80842..0000000 --- a/libmaple/usb/usb_reg_map.h +++ /dev/null @@ -1,433 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2011 LeafLabs, LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -#include -#include - -#ifndef _USB_REG_MAP_H_ -#define _USB_REG_MAP_H_ - -/* TODO: - * - Pick one of "endp", "ep" "endpt" - */ - -/* - * Register map and base pointer - */ - -#define USB_NR_EP_REGS 8 - -/** USB register map type */ -typedef struct usb_reg_map { - __io uint32 EP[USB_NR_EP_REGS]; /**< Endpoint registers */ - const uint32 RESERVED[8]; /**< Reserved */ - __io uint32 CNTR; /**< Control register */ - __io uint32 ISTR; /**< Interrupt status register */ - __io uint32 FNR; /**< Frame number register */ - __io uint32 DADDR; /**< Device address */ - __io uint32 BTABLE; /**< @brief Buffer table address - * - * Address offset within the USB - * packet memory area which points - * to the base of the buffer - * descriptor table. Must be - * aligned to an 8 byte boundary. - */ -} usb_reg_map; - -/** USB register map base pointer */ -#define USB_BASE ((struct usb_reg_map*)0x40005C00) - -/* - * Register bit definitions - */ - -/* Endpoint registers (USB_EPnR) */ - -#define USB_EP_CTR_RX_BIT 15 -#define USB_EP_DTOG_RX_BIT 14 -#define USB_EP_SETUP_BIT 11 -#define USB_EP_EP_KIND_BIT 8 -#define USB_EP_CTR_TX_BIT 7 -#define USB_EP_DTOG_TX_BIT 6 - -#define USB_EP_CTR_RX BIT(USB_EP_CTR_RX_BIT) -#define USB_EP_DTOG_RX BIT(USB_EP_DTOG_RX_BIT) -#define USB_EP_STAT_RX (0x3 << 12) -#define USB_EP_STAT_RX_DISABLED (0x0 << 12) -#define USB_EP_STAT_RX_STALL (0x1 << 12) -#define USB_EP_STAT_RX_NAK (0x2 << 12) -#define USB_EP_STAT_RX_VALID (0x3 << 12) -#define USB_EP_SETUP BIT(USB_EP_SETUP_BIT) -#define USB_EP_EP_TYPE (0x3 << 9) -#define USB_EP_EP_TYPE_BULK (0x0 << 9) -#define USB_EP_EP_TYPE_CONTROL (0x1 << 9) -#define USB_EP_EP_TYPE_ISO (0x2 << 9) -#define USB_EP_EP_TYPE_INTERRUPT (0x3 << 9) -#define USB_EP_EP_KIND BIT(USB_EP_EP_KIND_BIT) -#define USB_EP_CTR_TX BIT(USB_EP_CTR_TX_BIT) -#define USB_EP_DTOG_TX BIT(USB_EP_DTOG_TX_BIT) -#define USB_EP_STAT_TX (0x3 << 4) -#define USB_EP_STAT_TX_DISABLED (0x0 << 4) -#define USB_EP_STAT_TX_STALL (0x1 << 4) -#define USB_EP_STAT_TX_NAK (0x2 << 4) -#define USB_EP_STAT_TX_VALID (0x3 << 4) -#define USB_EP_EA 0xF - -/* Control register (USB_CNTR) */ - -#define USB_CNTR_CTRM_BIT 15 -#define USB_CNTR_PMAOVERM_BIT 14 -#define USB_CNTR_ERRM_BIT 13 -#define USB_CNTR_WKUPM_BIT 12 -#define USB_CNTR_SUSPM_BIT 11 -#define USB_CNTR_RESETM_BIT 10 -#define USB_CNTR_SOFM_BIT 9 -#define USB_CNTR_ESOFM_BIT 8 -#define USB_CNTR_RESUME_BIT 4 -#define USB_CNTR_FSUSP_BIT 3 -#define USB_CNTR_LP_MODE_BIT 2 -#define USB_CNTR_PDWN_BIT 1 -#define USB_CNTR_FRES_BIT 0 - -#define USB_CNTR_CTRM BIT(USB_CNTR_CTRM_BIT) -#define USB_CNTR_PMAOVERM BIT(USB_CNTR_PMAOVERM_BIT) -#define USB_CNTR_ERRM BIT(USB_CNTR_ERRM_BIT) -#define USB_CNTR_WKUPM BIT(USB_CNTR_WKUPM_BIT) -#define USB_CNTR_SUSPM BIT(USB_CNTR_SUSPM_BIT) -#define USB_CNTR_RESETM BIT(USB_CNTR_RESETM_BIT) -#define USB_CNTR_SOFM BIT(USB_CNTR_SOFM_BIT) -#define USB_CNTR_ESOFM BIT(USB_CNTR_ESOFM_BIT) -#define USB_CNTR_RESUME BIT(USB_CNTR_RESUME_BIT) -#define USB_CNTR_FSUSP BIT(USB_CNTR_FSUSP_BIT) -#define USB_CNTR_LP_MODE BIT(USB_CNTR_LP_MODE_BIT) -#define USB_CNTR_PDWN BIT(USB_CNTR_PDWN_BIT) -#define USB_CNTR_FRES BIT(USB_CNTR_FRES_BIT) - -/* Interrupt status register (USB_ISTR) */ - -#define USB_ISTR_CTR_BIT 15 -#define USB_ISTR_PMAOVR_BIT 14 -#define USB_ISTR_ERR_BIT 13 -#define USB_ISTR_WKUP_BIT 12 -#define USB_ISTR_SUSP_BIT 11 -#define USB_ISTR_RESET_BIT 10 -#define USB_ISTR_SOF_BIT 9 -#define USB_ISTR_ESOF_BIT 8 -#define USB_ISTR_DIR_BIT 4 - -#define USB_ISTR_CTR BIT(USB_ISTR_CTR_BIT) -#define USB_ISTR_PMAOVR BIT(USB_ISTR_PMAOVR_BIT) -#define USB_ISTR_ERR BIT(USB_ISTR_ERR_BIT) -#define USB_ISTR_WKUP BIT(USB_ISTR_WKUP_BIT) -#define USB_ISTR_SUSP BIT(USB_ISTR_SUSP_BIT) -#define USB_ISTR_RESET BIT(USB_ISTR_RESET_BIT) -#define USB_ISTR_SOF BIT(USB_ISTR_SOF_BIT) -#define USB_ISTR_ESOF BIT(USB_ISTR_ESOF_BIT) -#define USB_ISTR_DIR BIT(USB_ISTR_DIR_BIT) -#define USB_ISTR_EP_ID 0xF - -/* Frame number register (USB_FNR) */ - -#define USB_FNR_RXDP_BIT 15 -#define USB_FNR_RXDM_BIT 14 -#define USB_FNR_LCK_BIT 13 - -#define USB_FNR_RXDP BIT(USB_FNR_RXDP_BIT) -#define USB_FNR_RXDM BIT(USB_FNR_RXDM_BIT) -#define USB_FNR_LCK BIT(USB_FNR_LCK_BIT) -#define USB_FNR_LSOF (0x3 << 11) -#define USB_FNR_FN 0x7FF - -/* Device address (USB_DADDR) */ - -#define USB_DADDR_EF_BIT 7 -#define USB_DADDR_ADD6_BIT 6 -#define USB_DADDR_ADD5_BIT 5 -#define USB_DADDR_ADD4_BIT 4 -#define USB_DADDR_ADD3_BIT 3 -#define USB_DADDR_ADD2_BIT 2 -#define USB_DADDR_ADD1_BIT 1 -#define USB_DADDR_ADD0_BIT 0 - -#define USB_DADDR_EF BIT(USB_DADDR_EF_BIT) -#define USB_DADDR_ADD6 BIT(USB_DADDR_ADD6_BIT) -#define USB_DADDR_ADD5 BIT(USB_DADDR_ADD5_BIT) -#define USB_DADDR_ADD4 BIT(USB_DADDR_ADD4_BIT) -#define USB_DADDR_ADD3 BIT(USB_DADDR_ADD3_BIT) -#define USB_DADDR_ADD2 BIT(USB_DADDR_ADD2_BIT) -#define USB_DADDR_ADD1 BIT(USB_DADDR_ADD1_BIT) -#define USB_DADDR_ADD0 BIT(USB_DADDR_ADD0_BIT) - -/* Buffer table address (USB_BTABLE) */ - -#define USB_BTABLE_BTABLE (0x1FFF << 3) - -/* - * Register convenience routines - */ - -#define __EP_CTR_NOP (USB_EP_CTR_RX | USB_EP_CTR_TX) -#define __EP_NONTOGGLE (USB_EP_CTR_RX | USB_EP_SETUP | \ - USB_EP_EP_TYPE | USB_EP_EP_KIND | \ - USB_EP_CTR_TX | USB_EP_EA) - -static inline void usb_clear_ctr_rx(uint8 ep) { - uint32 epr = USB_BASE->EP[ep]; - USB_BASE->EP[ep] = epr & ~USB_EP_CTR_RX & __EP_NONTOGGLE; -} - -static inline void usb_clear_ctr_tx(uint8 ep) { - uint32 epr = USB_BASE->EP[ep]; - USB_BASE->EP[ep] = epr & ~USB_EP_CTR_TX & __EP_NONTOGGLE; -} - -static inline void usb_set_ep_rx_stat(uint8 ep, uint32 status) { - uint32 epr = USB_BASE->EP[ep]; - epr &= ~(USB_EP_STAT_TX | USB_EP_DTOG_RX | USB_EP_DTOG_TX); - epr |= __EP_CTR_NOP; - epr ^= status; - USB_BASE->EP[ep] = epr; -} - -static inline void usb_set_ep_tx_stat(uint8 ep, uint32 status) { - uint32 epr = USB_BASE->EP[ep]; - epr &= ~(USB_EP_STAT_RX | USB_EP_DTOG_RX | USB_EP_DTOG_TX); - epr |= __EP_CTR_NOP; - epr ^= status; - USB_BASE->EP[ep] = epr; -} - -static inline void usb_set_ep_type(uint8 ep, uint32 type) { - uint32 epr = USB_BASE->EP[ep]; - epr &= ~USB_EP_EP_TYPE & __EP_NONTOGGLE; - epr |= type; - USB_BASE->EP[ep] = epr; -} - -static inline void usb_set_ep_kind(uint8 ep, uint32 kind) { - uint32 epr = USB_BASE->EP[ep]; - epr &= ~USB_EP_EP_KIND & __EP_NONTOGGLE; - epr |= kind; - USB_BASE->EP[ep] = epr; -} - -static inline void usb_clear_status_out(uint8 ep) { - usb_set_ep_kind(ep, 0); -} - -/* - * Packet memory area (PMA) base pointer - */ - -/** - * @brief USB packet memory area (PMA) base pointer. - * - * The USB PMA is SRAM shared between USB and CAN. The USB peripheral - * accesses this memory directly via the packet buffer interface. */ -#define USB_PMA_BASE ((__io void*)0x40006000) - -/* - * PMA conveniences - */ - -void usb_copy_to_pma(const uint8 *buf, uint16 len, uint16 pma_offset); -void usb_copy_from_pma(uint8 *buf, uint16 len, uint16 pma_offset); - -static inline void* usb_pma_ptr(uint32 offset) { - return (void*)(USB_PMA_BASE + 2 * offset); -} - -/* - * BTABLE - */ - -/* (Forward-declared) BTABLE entry. - * - * The BTABLE can be viewed as an array of usb_btable_ent values; - * these vary in structure according to the configuration of the - * endpoint. - */ -union usb_btable_ent; - -/* Bidirectional endpoint BTABLE entry */ -typedef struct usb_btable_bidi { - __io uint16 addr_tx; const uint16 PAD1; - __io uint16 count_tx; const uint16 PAD2; - __io uint16 addr_rx; const uint16 PAD3; - __io uint16 count_rx; const uint16 PAD4; -} usb_btable_bidi; - -/* Unidirectional receive-only endpoint BTABLE entry */ -typedef struct usb_btable_uni_rx { - __io uint16 empty1; const uint16 PAD1; - __io uint16 empty2; const uint16 PAD2; - __io uint16 addr_rx; const uint16 PAD3; - __io uint16 count_rx; const uint16 PAD4; -} usb_btable_uni_rx; - -/* Unidirectional transmit-only endpoint BTABLE entry */ -typedef struct usb_btable_uni_tx { - __io uint16 addr_tx; const uint16 PAD1; - __io uint16 count_tx; const uint16 PAD2; - __io uint16 empty1; const uint16 PAD3; - __io uint16 empty2; const uint16 PAD4; -} usb_btable_uni_tx; - -/* Double-buffered transmission endpoint BTABLE entry */ -typedef struct usb_btable_dbl_tx { - __io uint16 addr_tx0; const uint16 PAD1; - __io uint16 count_tx0; const uint16 PAD2; - __io uint16 addr_tx1; const uint16 PAD3; - __io uint16 count_tx1; const uint16 PAD4; -} usb_btable_dbl_tx; - -/* Double-buffered reception endpoint BTABLE entry */ -typedef struct usb_btable_dbl_rx { - __io uint16 addr_rx0; const uint16 PAD1; - __io uint16 count_rx0; const uint16 PAD2; - __io uint16 addr_rx1; const uint16 PAD3; - __io uint16 count_rx1; const uint16 PAD4; -} usb_btable_dbl_rx; - -/* TODO isochronous endpoint entries */ - -/* Definition for above forward-declared BTABLE entry. */ -typedef union usb_btable_ent { - usb_btable_bidi bidi; - usb_btable_uni_rx u_rx; - usb_btable_uni_tx u_tx; - usb_btable_dbl_tx d_tx; - usb_btable_dbl_rx d_rx; -} usb_btable_ent; - -/* - * BTABLE conveniences - */ - -/* TODO (?) Convert usages of the many (and lengthily-named) - * accessors/mutators below to just manipulating usb_btable_entry - * values. */ - -static inline uint32* usb_btable_ptr(uint32 offset) { - return (uint32*)usb_pma_ptr(USB_BASE->BTABLE + offset); -} - -static inline usb_btable_ent *usb_btable(void) { - return (usb_btable_ent*)usb_btable_ptr(0); -} - -/* TX address */ - -static inline uint32* usb_ep_tx_addr_ptr(uint8 ep) { - return usb_btable_ptr(ep * 8); -} - -static inline uint16 usb_get_ep_tx_addr(uint8 ep) { - return (uint16)*usb_ep_tx_addr_ptr(ep); -} - -static inline void usb_set_ep_tx_addr(uint8 ep, uint16 addr) { - uint32 *tx_addr = usb_ep_tx_addr_ptr(ep); - *tx_addr = addr & ~0x1; -} - -/* RX address */ - -static inline uint32* usb_ep_rx_addr_ptr(uint8 ep) { - return usb_btable_ptr(ep * 8 + 4); -} - -static inline uint16 usb_get_ep_rx_addr(uint8 ep) { - return (uint16)*usb_ep_rx_addr_ptr(ep); -} - -static inline void usb_set_ep_rx_addr(uint8 ep, uint16 addr) { - uint32 *rx_addr = usb_ep_rx_addr_ptr(ep); - *rx_addr = addr & ~0x1; -} - -/* TX count (doesn't cover double-buffered and isochronous in) */ - -static inline uint32* usb_ep_tx_count_ptr(uint8 ep) { - return usb_btable_ptr(ep * 8 + 2); -} - -static inline uint16 usb_get_ep_tx_count(uint8 ep) { - return (uint16)*usb_ep_tx_count_ptr(ep); -} - -static inline void usb_set_ep_tx_count(uint8 ep, uint16 count) { - uint32 *txc = usb_ep_tx_count_ptr(ep); - *txc = count; -} - -/* RX count */ - -static inline uint32* usb_ep_rx_count_ptr(uint8 ep) { - return usb_btable_ptr(ep * 8 + 6); -} - -static inline uint16 usb_get_ep_rx_count(uint8 ep) { - return (uint16)*usb_ep_rx_count_ptr(ep) & 0x3FF; -} - -void usb_set_ep_rx_count(uint8 ep, uint16 count); - -/* - * Misc. types - */ - -typedef enum usb_ep { - USB_EP0, - USB_EP1, - USB_EP2, - USB_EP3, - USB_EP4, - USB_EP5, - USB_EP6, - USB_EP7, -} usb_ep; - -typedef enum usb_ep_type { - USB_EP_T_CTL = USB_EP_EP_TYPE_CONTROL, - USB_EP_T_BULK = USB_EP_EP_TYPE_BULK, - USB_EP_T_INT = USB_EP_EP_TYPE_INTERRUPT, - USB_EP_T_ISO = USB_EP_EP_TYPE_ISO -} usb_ep_type; - -typedef enum usb_ep_stat { - USB_EP_ST_RX_DIS = USB_EP_STAT_RX_DISABLED, - USB_EP_ST_RX_STL = USB_EP_STAT_RX_STALL, - USB_EP_ST_RX_NAK = USB_EP_STAT_RX_NAK, - USB_EP_ST_RX_VAL = USB_EP_STAT_RX_VALID, - USB_EP_ST_TX_DIS = USB_EP_STAT_TX_DISABLED, - USB_EP_ST_TX_STL = USB_EP_STAT_TX_STALL, - USB_EP_ST_TX_NAK = USB_EP_STAT_TX_NAK, - USB_EP_ST_TX_VAL = USB_EP_STAT_TX_VALID -} usb_ep_stat; - -#endif diff --git a/support/ld/stm32/series/stm32f1/value/vector_symbols.inc b/support/ld/stm32/series/stm32f1/value/vector_symbols.inc new file mode 100644 index 0000000..f8726f9 --- /dev/null +++ b/support/ld/stm32/series/stm32f1/value/vector_symbols.inc @@ -0,0 +1,78 @@ +EXTERN(__msp_init) +EXTERN(__exc_reset) +EXTERN(__exc_nmi) +EXTERN(__exc_hardfault) +EXTERN(__exc_memmanage) +EXTERN(__exc_busfault) +EXTERN(__exc_usagefault) +EXTERN(__stm32reservedexception7) +EXTERN(__stm32reservedexception8) +EXTERN(__stm32reservedexception9) +EXTERN(__stm32reservedexception10) +EXTERN(__exc_svc) +EXTERN(__exc_debug_monitor) +EXTERN(__stm32reservedexception13) +EXTERN(__exc_pendsv) +EXTERN(__exc_systick) + +EXTERN(__irq_wwdg) +EXTERN(__irq_pvd) +EXTERN(__irq_tamper) +EXTERN(__irq_rtc) +EXTERN(__irq_flash) +EXTERN(__irq_rcc) +EXTERN(__irq_exti0) +EXTERN(__irq_exti1) +EXTERN(__irq_exti2) +EXTERN(__irq_exti3) +EXTERN(__irq_exti4) +EXTERN(__irq_dma1_channel1) +EXTERN(__irq_dma1_channel2) +EXTERN(__irq_dma1_channel3) +EXTERN(__irq_dma1_channel4) +EXTERN(__irq_dma1_channel5) +EXTERN(__irq_dma1_channel6) +EXTERN(__irq_dma1_channel7) +EXTERN(__irq_adc1) +EXTERN(__stm32reservedexception14) +EXTERN(__stm32reservedexception15) +EXTERN(__stm32reservedexception16) +EXTERN(__stm32reservedexception17) +EXTERN(__irq_exti9_5) +EXTERN(__irq_tim1_brk) +EXTERN(__irq_tim1_up) +EXTERN(__irq_tim1_trg_com) +EXTERN(__irq_tim1_cc) +EXTERN(__irq_tim2) +EXTERN(__irq_tim3) +EXTERN(__irq_tim4) +EXTERN(__irq_i2c1_ev) +EXTERN(__irq_i2c1_er) +EXTERN(__irq_i2c2_ev) +EXTERN(__irq_i2c2_er) +EXTERN(__irq_spi1) +EXTERN(__irq_spi2) +EXTERN(__irq_usart1) +EXTERN(__irq_usart2) +EXTERN(__irq_usart3) +EXTERN(__irq_exti15_10) +EXTERN(__irq_rtcalarm) +EXTERN(__irq_cec) +EXTERN(__irq_tim12) +EXTERN(__irq_tim13) +EXTERN(__irq_tim14) +EXTERN(__stm32reservedexception18) +EXTERN(__stm32reservedexception19) +EXTERN(__irq_fsmc) +EXTERN(__stm32reservedexception20) +EXTERN(__irq_tim5) +EXTERN(__irq_spi3) +EXTERN(__irq_uart4) +EXTERN(__irq_uart5) +EXTERN(__irq_tim6) +EXTERN(__irq_tim7) +EXTERN(__irq_dma2_channel1) +EXTERN(__irq_dma2_channel2) +EXTERN(__irq_dma2_channel3) +EXTERN(__irq_dma2_channel4_5) +EXTERN(__irq_dma2_channel5) /* on remap only */ diff --git a/support/make/board-includes/VLDiscovery.mk b/support/make/board-includes/VLDiscovery.mk index 82d1b23..441f078 100644 --- a/support/make/board-includes/VLDiscovery.mk +++ b/support/make/board-includes/VLDiscovery.mk @@ -3,3 +3,4 @@ PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOC ERROR_LED_PIN := 9 MCU_SERIES := stm32f1 +MCU_F1_LINE := value diff --git a/support/make/board-includes/maple.mk b/support/make/board-includes/maple.mk index d31ad83..4de4bab 100644 --- a/support/make/board-includes/maple.mk +++ b/support/make/board-includes/maple.mk @@ -3,3 +3,4 @@ PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOA ERROR_LED_PIN := 5 MCU_SERIES := stm32f1 +MCU_F1_LINE := performance diff --git a/support/make/board-includes/maple_RET6.mk b/support/make/board-includes/maple_RET6.mk index d06f068..104ae08 100644 --- a/support/make/board-includes/maple_RET6.mk +++ b/support/make/board-includes/maple_RET6.mk @@ -3,3 +3,4 @@ PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOA ERROR_LED_PIN := 5 MCU_SERIES := stm32f1 +MCU_F1_LINE := performance diff --git a/support/make/board-includes/maple_mini.mk b/support/make/board-includes/maple_mini.mk index 835adc3..70ef506 100644 --- a/support/make/board-includes/maple_mini.mk +++ b/support/make/board-includes/maple_mini.mk @@ -3,3 +3,4 @@ PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOB ERROR_LED_PIN := 1 MCU_SERIES := stm32f1 +MCU_F1_LINE := performance diff --git a/support/make/board-includes/maple_native.mk b/support/make/board-includes/maple_native.mk index 3e88e7b..86746a6 100644 --- a/support/make/board-includes/maple_native.mk +++ b/support/make/board-includes/maple_native.mk @@ -3,3 +3,4 @@ PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOC ERROR_LED_PIN := 15 MCU_SERIES := stm32f1 +MCU_F1_LINE := performance diff --git a/support/make/board-includes/olimex_stm32_h103.mk b/support/make/board-includes/olimex_stm32_h103.mk index 96d6976..31f2c04 100644 --- a/support/make/board-includes/olimex_stm32_h103.mk +++ b/support/make/board-includes/olimex_stm32_h103.mk @@ -3,3 +3,4 @@ PRODUCT_ID := 0003 ERROR_LED_PORT := GPIOC ERROR_LED_PIN := 12 MCU_SERIES := stm32f1 +MCU_F1_LINE := performance diff --git a/support/make/target-config.mk b/support/make/target-config.mk index 48a33de..e13504d 100644 --- a/support/make/target-config.mk +++ b/support/make/target-config.mk @@ -15,9 +15,9 @@ TARGET_FLAGS += -DBOARD_$(BOARD) -DMCU_$(MCU) \ LD_SERIES_PATH := $(LDDIR)/stm32/series/$(MCU_SERIES) ifeq ($(MCU_SERIES), stm32f1) - # Hack: force F1 to performance line; this will need to change if - # you add connectivity etc. line support. - LD_SERIES_PATH := $(LD_SERIES_PATH)/performance +# Due to the Balkanization on F1, we need to specify the line when +# making linker decisions. +LD_SERIES_PATH := $(LD_SERIES_PATH)/$(MCU_F1_LINE) endif LIBMAPLE_MODULE_SERIES := $(LIBMAPLE_PATH)/$(MCU_SERIES) diff --git a/wirish/include/wirish/usb_serial.h b/wirish/include/wirish/usb_serial.h index 81e9e97..f36671b 100644 --- a/wirish/include/wirish/usb_serial.h +++ b/wirish/include/wirish/usb_serial.h @@ -25,13 +25,14 @@ *****************************************************************************/ /** - * @brief Wirish virtual serial port + * @brief Wirish USB virtual serial port (SerialUSB). */ #ifndef _WIRISH_USB_SERIAL_H_ #define _WIRISH_USB_SERIAL_H_ #include +#include /** * @brief Virtual serial terminal. @@ -58,7 +59,9 @@ public: uint8 pending(); }; +#if BOARD_HAVE_SERIALUSB extern USBSerial SerialUSB; +#endif #endif diff --git a/wirish/rules.mk b/wirish/rules.mk index 147857a..6d96cbe 100644 --- a/wirish/rules.mk +++ b/wirish/rules.mk @@ -26,6 +26,9 @@ cppSRCS_$(d) += HardwareSerial.cpp cppSRCS_$(d) += HardwareTimer.cpp cppSRCS_$(d) += Print.cpp cppSRCS_$(d) += pwm.cpp +ifeq ($(MCU_SERIES), stm32f1) +cppSRCS_$(d) += usb_serial.cpp # HACK: this is currently STM32F1 only. +endif cppSRCS_$(d) += wirish_analog.cpp cppSRCS_$(d) += wirish_digital.cpp cppSRCS_$(d) += wirish_math.cpp @@ -36,7 +39,6 @@ cppSRCS_$(d) += $(MCU_SERIES)/wirish_digital.cpp cppSRCS_$(d) += $(WIRISH_BOARD_PATH)/board.cpp # TODO: revise these appropriately for F2 and put them back in: # HardwareSPI.cpp -# usb_serial.cpp # ext_interrupts.cpp sFILES_$(d) := $(sSRCS_$(d):%=$(d)/%) diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp index 423e5ec..1dec579 100644 --- a/wirish/stm32f1/boards_setup.cpp +++ b/wirish/stm32f1/boards_setup.cpp @@ -38,9 +38,9 @@ #include #include -#include -#include +#include +#include // Allow boards to provide a PLL multiplier. This is useful for // e.g. STM32F100 value line MCUs, which use slower multipliers. @@ -80,10 +80,8 @@ namespace wirish { } void board_setup_usb(void) { -#if 0 -# if STM32_HAVE_USB - usb_cdcacm_enable(BOARD_USB_DISC_DEV, BOARD_USB_DISC_BIT); -# endif +#if BOARD_HAVE_SERIALUSB + SerialUSB.begin(); #endif } } diff --git a/wirish/usb_serial.cpp b/wirish/usb_serial.cpp index 388c739..a01900f 100644 --- a/wirish/usb_serial.cpp +++ b/wirish/usb_serial.cpp @@ -40,14 +40,21 @@ #define USB_TIMEOUT 50 USBSerial::USBSerial(void) { +#if !BOARD_HAVE_SERIALUSB + ASSERT(0); +#endif } void USBSerial::begin(void) { +#if BOARD_HAVE_SERIALUSB usb_cdcacm_enable(BOARD_USB_DISC_DEV, BOARD_USB_DISC_BIT); +#endif } void USBSerial::end(void) { +#if BOARD_HAVE_SERIALUSB usb_cdcacm_disable(BOARD_USB_DISC_DEV, BOARD_USB_DISC_BIT); +#endif } void USBSerial::write(uint8 ch) { @@ -117,4 +124,6 @@ uint8 USBSerial::getRTS(void) { return usb_cdcacm_get_rts(); } +#if BOARD_HAVE_SERIALUSB USBSerial SerialUSB; +#endif -- cgit v1.2.3 From e6ba29161ee79ad8500b4d74ff11d123b9f6a17f Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Tue, 5 Jun 2012 14:38:39 -0400 Subject: Remove a completed FIXME comment. Signed-off-by: Marti Bolivar --- wirish/stm32f1/boards_setup.cpp | 3 --- 1 file changed, 3 deletions(-) (limited to 'wirish/stm32f1') diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp index 1dec579..da45730 100644 --- a/wirish/stm32f1/boards_setup.cpp +++ b/wirish/stm32f1/boards_setup.cpp @@ -51,9 +51,6 @@ #define BOARD_RCC_PLLMUL RCC_PLLMUL_9 #endif -/* FIXME: Reintroduce all "#if 0"'ed blocks once libmaple provides - * these definitions again. */ - namespace wirish { namespace priv { -- cgit v1.2.3 From 90769437c91dd523e13e1437c4117dd40c76f372 Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Tue, 5 Jun 2012 15:04:06 -0400 Subject: Provide wirish::priv::series_init() on F1. This lets us remove the weak definition in boards.cpp. Signed-off-by: Marti Bolivar --- wirish/boards.cpp | 7 ------- wirish/stm32f1/boards_setup.cpp | 10 +++++++--- 2 files changed, 7 insertions(+), 10 deletions(-) (limited to 'wirish/stm32f1') diff --git a/wirish/boards.cpp b/wirish/boards.cpp index 471325f..5771df5 100644 --- a/wirish/boards.cpp +++ b/wirish/boards.cpp @@ -75,13 +75,6 @@ void init(void) { boardInit(); } -/* Provide a default no-op series_init() */ -namespace wirish { - namespace priv { - __weak void series_init(void) {} - } -} - /* Provide a default no-op boardInit(). */ __weak void boardInit(void) { } diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp index da45730..d224ef2 100644 --- a/wirish/stm32f1/boards_setup.cpp +++ b/wirish/stm32f1/boards_setup.cpp @@ -71,9 +71,6 @@ namespace wirish { void board_setup_gpio(void) { gpio_init_all(); - // Initialize AFIO here, too, so peripheral remaps and external - // interrupts work out of the box. - afio_init(); } void board_setup_usb(void) { @@ -81,5 +78,12 @@ namespace wirish { SerialUSB.begin(); #endif } + + void series_init(void) { + // Initialize AFIO here, too, so peripheral remaps and external + // interrupts work out of the box. + afio_init(); + } + } } -- cgit v1.2.3 From b12b8e7c24487c183d73fed4d7848a4bd0e8304a Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Tue, 5 Jun 2012 15:07:01 -0400 Subject: wirish: Weaken boards_private.h definitions. This lets users override them conveniently if our decisions don't suit. Signed-off-by: Marti Bolivar --- wirish/stm32f1/boards_setup.cpp | 16 +++++++------- wirish/stm32f2/boards_setup.cpp | 48 ++++++++++++++++++++++++----------------- 2 files changed, 36 insertions(+), 28 deletions(-) (limited to 'wirish/stm32f1') diff --git a/wirish/stm32f1/boards_setup.cpp b/wirish/stm32f1/boards_setup.cpp index d224ef2..11872d5 100644 --- a/wirish/stm32f1/boards_setup.cpp +++ b/wirish/stm32f1/boards_setup.cpp @@ -55,31 +55,31 @@ namespace wirish { namespace priv { static stm32f1_rcc_pll_data pll_data = {BOARD_RCC_PLLMUL}; - rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; - adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_6; - adc_smp_rate w_adc_smp = ADC_SMPR_55_5; + __weak rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; + __weak adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_6; + __weak adc_smp_rate w_adc_smp = ADC_SMPR_55_5; - void board_reset_pll(void) { + __weak void board_reset_pll(void) { // TODO } - void board_setup_clock_prescalers(void) { + __weak void board_setup_clock_prescalers(void) { rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1); rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_2); rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_1); } - void board_setup_gpio(void) { + __weak void board_setup_gpio(void) { gpio_init_all(); } - void board_setup_usb(void) { + __weak void board_setup_usb(void) { #if BOARD_HAVE_SERIALUSB SerialUSB.begin(); #endif } - void series_init(void) { + __weak void series_init(void) { // Initialize AFIO here, too, so peripheral remaps and external // interrupts work out of the box. afio_init(); diff --git a/wirish/stm32f2/boards_setup.cpp b/wirish/stm32f2/boards_setup.cpp index 952e84d..876a65b 100644 --- a/wirish/stm32f2/boards_setup.cpp +++ b/wirish/stm32f2/boards_setup.cpp @@ -38,6 +38,7 @@ #include #include +#include #include // PLL configuration for 25 MHz external oscillator --> 120 MHz SYSCLK. @@ -50,43 +51,50 @@ static stm32f2_rcc_pll_data pll_data = {PLL_Q, PLL_P, PLL_N, PLL_M}; namespace wirish { namespace priv { // PLL clocked off of HSE, with above configuration data. - rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; - // As f_APB2 = 60 MHz (see board_setup_clock_prescalers), - // we need f_ADC = f_PCLK2 / 2 to get the (maximum) - // f_ADC = 30 MHz. - adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_2; - // With clocks as specified here (i.e. f_ADC = 30 MHz), this - // ADC sample rate allows for error less than 1/4 LSB with a - // 50 KOhm input impedance, assuming an internal sample and - // hold capacitance C_ADC at most 8.8 pF. See Equation 1 and - // Table 61 in the F2 datasheet for more details. - adc_smp_rate w_adc_smp = ADC_SMPR_144; + __weak rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; - void board_reset_pll(void) { + // Global ADC prescaler + // + // On F2, with f_APB2 = 60 MHz, we need f_ADC = f_PCLK2 / 2 to + // get the (maximum) f_ADC = 30 MHz. + __weak adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_2; + + // Conservative ADC sample rate. Goal is error less than 1/4 + // LSB with 50 KOhm input impedance. + // + // On F2, with f_ADC = 30 MHz, error is acceptable assuming an + // internal sample and hold capacitance C_ADC at most 8.8 pF + // (ST doesn't specify the maximum C_ADC, so we had to take a + // guess). See Equation 1 and Table 61 in the F2 datasheet for + // more details. + __weak adc_smp_rate w_adc_smp = ADC_SMPR_144; + + __weak void board_reset_pll(void) { // Set PLLCFGR to its reset value. RCC_BASE->PLLCFGR = 0x24003010; // FIXME lose the magic number. } - void board_setup_clock_prescalers(void) { - // With f_SYSCLK = 120 MHz (as determined by board_pll_cfg), + __weak void board_setup_clock_prescalers(void) { + // On F2, with f_SYSCLK = 120 MHz (as determined by + // board_pll_cfg), // - // f_AHB = f_SYSCLK / 1 = 120 MHz + // f_AHB = f_SYSCLK / 1 = 120 MHz + // f_APB1 = f_AHB / 4 = 30 MHz + // f_APB2 = f_AHB / 2 = 60 MHz rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1); - // f_APB1 = f_AHB / 4 = 30 MHz rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_4); - // f_APB2 = f_AHB / 2 = 60 MHz rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_2); } - void board_setup_gpio(void) { + __weak void board_setup_gpio(void) { gpio_init_all(); } - void board_setup_usb(void) { + __weak void board_setup_usb(void) { // Nothing to do. } - void series_init(void) { + __weak void series_init(void) { // We need SYSCFG for external interrupts syscfg_init(); // Turn on the I/O compensation cell, since we drive the -- cgit v1.2.3 From 3193ae1326c738b54067674a6073287f90ecaa85 Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Fri, 8 Jun 2012 18:34:33 -0400 Subject: Bring back . Signed-off-by: Marti Bolivar --- wirish/include/wirish/wirish.h | 2 +- wirish/include/wirish/wirish_debug.h | 8 ++--- wirish/rules.mk | 1 + wirish/stm32f1/wirish_debug.cpp | 41 ++++++++++++++++++++++++ wirish/stm32f2/wirish_debug.cpp | 60 ++++++++++++++++++++++++++++++++++++ 5 files changed, 105 insertions(+), 7 deletions(-) create mode 100644 wirish/stm32f1/wirish_debug.cpp create mode 100644 wirish/stm32f2/wirish_debug.cpp (limited to 'wirish/stm32f1') diff --git a/wirish/include/wirish/wirish.h b/wirish/include/wirish/wirish.h index 6810e4f..360b502 100644 --- a/wirish/include/wirish/wirish.h +++ b/wirish/include/wirish/wirish.h @@ -39,7 +39,7 @@ #include #include #include -/* FIXME put this back when you can #include */ +#include #include #include /* FIXME put this back when you can #include */ diff --git a/wirish/include/wirish/wirish_debug.h b/wirish/include/wirish/wirish_debug.h index cb1be3d..4edfd27 100644 --- a/wirish/include/wirish/wirish_debug.h +++ b/wirish/include/wirish/wirish_debug.h @@ -42,9 +42,7 @@ * * @see enableDebugPorts() */ -static inline void disableDebugPorts(void) { - afio_cfg_debug_ports(AFIO_DEBUG_NONE); -} +void disableDebugPorts(void); /** * @brief Enable the JTAG and Serial Wire (SW) debug ports. @@ -54,8 +52,6 @@ static inline void disableDebugPorts(void) { * * @see disableDebugPorts() */ -static inline void enableDebugPorts(void) { - afio_cfg_debug_ports(AFIO_DEBUG_FULL_SWJ); -} +void enableDebugPorts(void); #endif diff --git a/wirish/rules.mk b/wirish/rules.mk index acf4c46..5138c82 100644 --- a/wirish/rules.mk +++ b/wirish/rules.mk @@ -38,6 +38,7 @@ cppSRCS_$(d) += wirish_shift.cpp cppSRCS_$(d) += wirish_time.cpp cppSRCS_$(d) += $(MCU_SERIES)/boards_setup.cpp cppSRCS_$(d) += $(MCU_SERIES)/wirish_digital.cpp +cppSRCS_$(d) += $(MCU_SERIES)/wirish_debug.cpp cppSRCS_$(d) += $(WIRISH_BOARD_PATH)/board.cpp # TODO: revise these appropriately for F2 and put them back in: # HardwareSPI.cpp diff --git a/wirish/stm32f1/wirish_debug.cpp b/wirish/stm32f1/wirish_debug.cpp new file mode 100644 index 0000000..28de96d --- /dev/null +++ b/wirish/stm32f1/wirish_debug.cpp @@ -0,0 +1,41 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2011, 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file wirish/stm32f1/wirish_debug.cpp + * @brief High level debug port configuration + */ + +#include +#include + +void disableDebugPorts(void) { + afio_cfg_debug_ports(AFIO_DEBUG_NONE); +} + +void enableDebugPorts(void) { + afio_cfg_debug_ports(AFIO_DEBUG_FULL_SWJ); +} diff --git a/wirish/stm32f2/wirish_debug.cpp b/wirish/stm32f2/wirish_debug.cpp new file mode 100644 index 0000000..af6c78b --- /dev/null +++ b/wirish/stm32f2/wirish_debug.cpp @@ -0,0 +1,60 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file wirish/stm32f2/wirish_debug.cpp + * @brief High level debug port configuration + */ + +#include +#include + +// TODO is it worth optimizing these into raw MODER and AFR[LH] writes? + +void disableDebugPorts(void) { + // PA13-PA15 and PB3-PB4 are in system alternate function mode on + // reset, to support JTAG. Just put them in input mode to release + // them. + gpio_set_mode(GPIOA, 13, GPIO_MODE_INPUT); + gpio_set_mode(GPIOA, 14, GPIO_MODE_INPUT); + gpio_set_mode(GPIOA, 15, GPIO_MODE_INPUT); + gpio_set_mode(GPIOB, 3, GPIO_MODE_INPUT); + gpio_set_mode(GPIOB, 4, GPIO_MODE_INPUT); +} + +void enableDebugPorts(void) { + // Put PA13-PA15 and PB3-PB4 back in system AF mode. + gpio_set_mode(GPIOA, 13, GPIO_MODE_AF); + gpio_set_mode(GPIOA, 14, GPIO_MODE_AF); + gpio_set_mode(GPIOA, 15, GPIO_MODE_AF); + gpio_set_mode(GPIOB, 3, GPIO_MODE_AF); + gpio_set_mode(GPIOB, 4, GPIO_MODE_AF); + gpio_set_af(GPIOA, 13, GPIO_AF_SYS); + gpio_set_af(GPIOA, 14, GPIO_AF_SYS); + gpio_set_af(GPIOA, 15, GPIO_AF_SYS); + gpio_set_af(GPIOB, 3, GPIO_AF_SYS); + gpio_set_af(GPIOB, 4, GPIO_AF_SYS); +} -- cgit v1.2.3 From fbbf35ee079d1c979909981c95132ba7eaca7215 Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Tue, 26 Jun 2012 18:03:40 -0400 Subject: Bring back and fix up util.c functionality. Rip out the existing nonportable pieces, and shove them under wirish/stm32f1, using weak symbols so users who only want libmaple proper don't end up with build errors. Add stubbed-out (and only partially functional) definitions for F2 targets under wirish/stm32f2. The behavior on F103 targets is the same as it was before (though the assertion framework has always been broken and badly needs replacement, that awaits another commit). We additionally now skip re-enabling USB on F1 targets without USB, to make things work on value line MCUs. Signed-off-by: Marti Bolivar --- libmaple/util.c | 119 ++++++++++++++++---------------------------- wirish/rules.mk | 1 + wirish/stm32f1/util_hooks.c | 83 ++++++++++++++++++++++++++++++ wirish/stm32f2/util_hooks.c | 45 +++++++++++++++++ 4 files changed, 171 insertions(+), 77 deletions(-) create mode 100644 wirish/stm32f1/util_hooks.c create mode 100644 wirish/stm32f2/util_hooks.c (limited to 'wirish/stm32f1') diff --git a/libmaple/util.c b/libmaple/util.c index 88da075..2ee5ede 100644 --- a/libmaple/util.c +++ b/libmaple/util.c @@ -26,27 +26,17 @@ /** * @file libmaple/util.c - * @brief Utility procedures for debugging, mostly an error LED fade - * and messages dumped over a UART for failed asserts. + * @brief Utility procedures for debugging */ #include #include #include #include -#include -#include -/* FIXME [0.0.13] put this stuff back in some form. Move to Wirish? */ - -/* Failed ASSERT()s send out a message using this USART config. */ -#ifndef ERROR_USART -#define ERROR_USART USART2 -#define ERROR_USART_CLK_SPEED STM32_PCLK1 -#define ERROR_USART_BAUD 9600 -#define ERROR_TX_PORT GPIOA -#define ERROR_TX_PIN 2 -#endif +/* (Undocumented) hooks used by Wirish to direct our behavior here */ +extern __weak void __lm_error(void); +extern __weak usart_dev* __lm_enable_error_usart(void); /* If you define ERROR_LED_PORT and ERROR_LED_PIN, then a failed * ASSERT() will also throb() an LED connected to that port and pin. @@ -55,100 +45,75 @@ #define HAVE_ERROR_LED #endif -/** - * @brief Disables all peripheral interrupts except USB and fades the - * error LED. - */ /* (Called from exc.S with global interrupts disabled.) */ -void __error(void) { - /* Turn off peripheral interrupts */ - nvic_irq_disable_all(); - - /* /\* Turn off timers *\/ */ - /* timer_disable_all(); */ - - /* /\* Turn off ADC *\/ */ - /* adc_disable_all(); */ - - /* /\* Turn off all USARTs *\/ */ - /* usart_disable_all(); */ - - /* /\* Turn the USB interrupt back on so the bootloader keeps on functioning *\/ */ - /* nvic_irq_enable(NVIC_USB_HP_CAN_TX); */ - /* nvic_irq_enable(NVIC_USB_LP_CAN_RX0); */ - +__attribute__((noreturn)) void __error(void) { + if (__lm_error) { + __lm_error(); + } /* Reenable global interrupts */ nvic_globalirq_enable(); throb(); } -/** - * @brief Enable the error USART for writing. - * @sideeffect Configures ERROR_USART appropriately for writing. - */ -void _enable_error_usart() { - /* gpio_set_mode(ERROR_TX_PORT, ERROR_TX_PIN, GPIO_AF_OUTPUT_PP); */ - /* usart_init(ERROR_USART); */ - /* usart_set_baud_rate(ERROR_USART, ERROR_USART_CLK_SPEED, ERROR_USART_BAUD); */ -} - -/** - * @brief Print an error message on a UART upon a failed assertion - * and throb the error LED, if there is one defined. +/* + * Print an error message on a UART upon a failed assertion (if one is + * available), and punt to __error(). + * * @param file Source file of failed assertion * @param line Source line of failed assertion * @param exp String representation of failed assertion * @sideeffect Turns of all peripheral interrupts except USB. */ void _fail(const char* file, int line, const char* exp) { - /* Initialize the error USART */ - /* _enable_error_usart(); */ - - /* /\* Print failed assert message *\/ */ - /* usart_putstr(ERROR_USART, "ERROR: FAILED ASSERT("); */ - /* usart_putstr(ERROR_USART, exp); */ - /* usart_putstr(ERROR_USART, "): "); */ - /* usart_putstr(ERROR_USART, file); */ - /* usart_putstr(ERROR_USART, ": "); */ - /* usart_putudec(ERROR_USART, line); */ - /* usart_putc(ERROR_USART, '\n'); */ - /* usart_putc(ERROR_USART, '\r'); */ - + if (__lm_enable_error_usart) { + /* Initialize the error USART */ + usart_dev *err_usart = __lm_enable_error_usart(); + + /* Print failed assert message */ + usart_putstr(err_usart, "ERROR: FAILED ASSERT("); + usart_putstr(err_usart, exp); + usart_putstr(err_usart, "): "); + usart_putstr(err_usart, file); + usart_putstr(err_usart, ": "); + usart_putudec(err_usart, line); + usart_putc(err_usart, '\n'); + usart_putc(err_usart, '\r'); + } /* Shutdown and error fade */ __error(); } -/** - * @brief Provide an __assert_func handler to libc so that calls to assert() get - * redirected to _fail. +/* + * Provide an __assert_func handler to libc so that calls to assert() + * get redirected to _fail. */ void __assert_func(const char* file, int line, const char* method, const char* expression) { _fail(file, line, expression); } -/** - * @brief Provide an abort() implementation that aborts execution and enters an - * error state with the throbbing LED indicator. +/* + * Provide an abort() implementation that aborts execution and punts + * to __error(). */ void abort() { - /* /\* Initialize the error USART *\/ */ - /* _enable_error_usart(); */ - - /* /\* Print abort message. *\/ */ - /* usart_putstr(ERROR_USART, "ERROR: PROGRAM ABORTED VIA abort()\n\r"); */ + if (__lm_enable_error_usart) { + /* Initialize the error USART */ + usart_dev *err_usart = __lm_enable_error_usart(); + /* Print abort message. */ + usart_putstr(err_usart, "ERROR: PROGRAM ABORTED VIA abort()\r\n"); + } - /* /\* Shutdown and error fade *\/ */ - /* __error(); */ - while (1) - ; + /* Shutdown and error fade */ + __error(); } +/* This was public as of v0.0.12, so we've got to keep it public. */ /** * @brief Fades the error LED on and off * @sideeffect Sets output push-pull on ERROR_LED_PIN. */ -void throb(void) { +__attribute__((noreturn)) void throb(void) { #ifdef HAVE_ERROR_LED int32 slope = 1; uint32 CC = 0x0000; diff --git a/wirish/rules.mk b/wirish/rules.mk index 5138c82..f895213 100644 --- a/wirish/rules.mk +++ b/wirish/rules.mk @@ -21,6 +21,7 @@ CFLAGS_$(d) := $(LIBMAPLE_INCLUDES) $(WIRISH_INCLUDES) -I$(d) sSRCS_$(d) := start.S cSRCS_$(d) := start_c.c cSRCS_$(d) += syscalls.c +cSRCS_$(d) += $(MCU_SERIES)/util_hooks.c cppSRCS_$(d) := boards.cpp cppSRCS_$(d) += cxxabi-compat.cpp cppSRCS_$(d) += ext_interrupts.cpp diff --git a/wirish/stm32f1/util_hooks.c b/wirish/stm32f1/util_hooks.c new file mode 100644 index 0000000..8f798a1 --- /dev/null +++ b/wirish/stm32f1/util_hooks.c @@ -0,0 +1,83 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2010 Perry Hung (from libmaple/util.c). + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/* + * STM32F1 implementations for libmaple/util.c hooks + * + * These need more love and attention before being made public API + * (this includes being easily overridable by user code). + */ + +#include +#include +#include +#include +#include +#include + +/* Failed ASSERT()s send out a message using this USART config. */ +#ifndef ERROR_USART +#define ERROR_USART USART2 +#define ERROR_USART_BAUD 9600 +#define ERROR_TX_PORT GPIOA +#define ERROR_TX_PIN 2 +#endif + +/* + * Disables all peripheral interrupts except USB (when available), + * turns off commonly-used peripherals. Called by __error() with + * global interrupts disabled. + */ +void __lm_error(void) { + /* Turn off peripheral interrupts */ + nvic_irq_disable_all(); + + /* Turn off timers */ + timer_disable_all(); + + /* Turn off ADC */ + adc_disable_all(); + + /* Turn off all USARTs */ + usart_disable_all(); + +#if STM32_HAVE_USB + /* Turn the USB interrupt back on so the bootloader keeps on functioning */ + nvic_irq_enable(NVIC_USB_HP_CAN_TX); + nvic_irq_enable(NVIC_USB_LP_CAN_RX0); +#endif +} + +/* + * Enable the error USART for writing. + */ +usart_dev* __lm_enable_error_usart() { + gpio_set_mode(ERROR_TX_PORT, ERROR_TX_PIN, GPIO_AF_OUTPUT_PP); + usart_init(ERROR_USART); + usart_set_baud_rate(ERROR_USART, USART_USE_PCLK, ERROR_USART_BAUD); + return ERROR_USART; +} diff --git a/wirish/stm32f2/util_hooks.c b/wirish/stm32f2/util_hooks.c new file mode 100644 index 0000000..1b519ab --- /dev/null +++ b/wirish/stm32f2/util_hooks.c @@ -0,0 +1,45 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/* + * STM32F2 implementations for libmaple util.c hooks + * FIXME these are just minimal stubs + */ + +#include + +/* + * Disables all peripheral interrupts. Called by __error() with global + * interrupts disabled. + */ +void __lm_error(void) { + nvic_irq_disable_all(); +} + +/* + * Enable the error USART for writing. + */ +/* usart_dev* __lm_enable_error_usart(void) { (TODO) } */ -- cgit v1.2.3