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-rw-r--r--libmaple/stm32f1/include/series/gpio.h185
1 files changed, 85 insertions, 100 deletions
diff --git a/libmaple/stm32f1/include/series/gpio.h b/libmaple/stm32f1/include/series/gpio.h
index 0ca6d56..ec4a39c 100644
--- a/libmaple/stm32f1/include/series/gpio.h
+++ b/libmaple/stm32f1/include/series/gpio.h
@@ -28,9 +28,7 @@
/**
* @file libmaple/stm32f1/include/series/gpio.h
* @brief STM32F1 GPIO and AFIO support.
- *
- * General purpose I/O (GPIO) and Alternate Function I/O (AFIO)
- * prototypes, defines, and support functions.
+ * General purpose I/O (GPIO) and Alternate Function I/O (AFIO).
*/
#ifndef _LIBMAPLE_STM32F1_GPIO_H_
@@ -119,24 +117,22 @@ extern struct gpio_dev* const GPIOG;
* use direct register access.
*/
typedef enum gpio_pin_mode {
- GPIO_OUTPUT_PP = (GPIO_CR_CNF_OUTPUT_PP |
- GPIO_CR_MODE_OUTPUT_50MHZ), /**< Output push-pull. */
- GPIO_OUTPUT_OD = (GPIO_CR_CNF_OUTPUT_OD |
- GPIO_CR_MODE_OUTPUT_50MHZ), /**< Output open-drain. */
- GPIO_AF_OUTPUT_PP = (GPIO_CR_CNF_AF_OUTPUT_PP |
- GPIO_CR_MODE_OUTPUT_50MHZ), /**< Alternate function
- output push-pull. */
- GPIO_AF_OUTPUT_OD = (GPIO_CR_CNF_AF_OUTPUT_OD |
- GPIO_CR_MODE_OUTPUT_50MHZ), /**< Alternate function
- output open drain. */
- GPIO_INPUT_ANALOG = (GPIO_CR_CNF_INPUT_ANALOG |
- GPIO_CR_MODE_INPUT), /**< Analog input. */
- GPIO_INPUT_FLOATING = (GPIO_CR_CNF_INPUT_FLOATING |
- GPIO_CR_MODE_INPUT), /**< Input floating. */
- GPIO_INPUT_PD = (GPIO_CR_CNF_INPUT_PU_PD |
- GPIO_CR_MODE_INPUT), /**< Input pull-down. */
- GPIO_INPUT_PU /**< Input pull-up. */
- /* GPIO_INPUT_PU treated as a special case, for ODR twiddling */
+ /** Output push-pull. */
+ GPIO_OUTPUT_PP = GPIO_CR_CNF_OUTPUT_PP | GPIO_CR_MODE_OUTPUT_50MHZ,
+ /** Output open-drain. */
+ GPIO_OUTPUT_OD = GPIO_CR_CNF_OUTPUT_OD | GPIO_CR_MODE_OUTPUT_50MHZ,
+ /** Alternate function output push-pull. */
+ GPIO_AF_OUTPUT_PP = GPIO_CR_CNF_AF_OUTPUT_PP | GPIO_CR_MODE_OUTPUT_50MHZ,
+ /** Alternate function output open drain. */
+ GPIO_AF_OUTPUT_OD = GPIO_CR_CNF_AF_OUTPUT_OD | GPIO_CR_MODE_OUTPUT_50MHZ,
+ /** Analog input. */
+ GPIO_INPUT_ANALOG = GPIO_CR_CNF_INPUT_ANALOG | GPIO_CR_MODE_INPUT,
+ /** Input floating. */
+ GPIO_INPUT_FLOATING = GPIO_CR_CNF_INPUT_FLOATING | GPIO_CR_MODE_INPUT,
+ /** Input pull-down. */
+ GPIO_INPUT_PD = GPIO_CR_CNF_INPUT_PU_PD | GPIO_CR_MODE_INPUT,
+ /** Input pull-up. */
+ GPIO_INPUT_PU, /* (treated a special case, for ODR twiddling) */
} gpio_pin_mode;
/*
@@ -145,19 +141,14 @@ typedef enum gpio_pin_mode {
/** AFIO register map */
typedef struct afio_reg_map {
- __io uint32 EVCR; /**< Event control register. */
- __io uint32 MAPR; /**< AF remap and debug I/O configuration
- register. */
- __io uint32 EXTICR1; /**< External interrupt configuration
- register 1. */
- __io uint32 EXTICR2; /**< External interrupt configuration
- register 2. */
- __io uint32 EXTICR3; /**< External interrupt configuration
- register 3. */
- __io uint32 EXTICR4; /**< External interrupt configuration
- register 4. */
- __io uint32 MAPR2; /**< AF remap and debug I/O configuration
- register 2. */
+ __io uint32 EVCR; /**< Event control register. */
+ __io uint32 MAPR; /**< AF remap and debug I/O configuration register. */
+ __io uint32 EXTICR1; /**< External interrupt configuration register 1. */
+ __io uint32 EXTICR2; /**< External interrupt configuration register 2. */
+ __io uint32 EXTICR3; /**< External interrupt configuration register 3. */
+ __io uint32 EXTICR4; /**< External interrupt configuration register 4. */
+ __io uint32 MAPR2; /**<
+ * AF remap and debug I/O configuration register 2. */
} afio_reg_map;
/** AFIO register map base pointer. */
@@ -326,62 +317,58 @@ void afio_init(void);
* @see afio_remap()
*/
typedef enum afio_remap_peripheral {
- AFIO_REMAP_ADC2_ETRGREG = AFIO_MAPR_ADC2_ETRGREG_REMAP, /**<
- ADC 2 external trigger regular conversion remapping */
- AFIO_REMAP_ADC2_ETRGINJ = AFIO_MAPR_ADC2_ETRGINJ_REMAP, /**<
- ADC 2 external trigger injected conversion remapping */
- AFIO_REMAP_ADC1_ETRGREG = AFIO_MAPR_ADC1_ETRGREG_REMAP, /**<
- ADC 1 external trigger regular conversion remapping */
- AFIO_REMAP_ADC1_ETRGINJ = AFIO_MAPR_ADC1_ETRGINJ_REMAP, /**<
- ADC 1 external trigger injected conversion remapping */
- AFIO_REMAP_TIM5CH4_I = AFIO_MAPR_TIM5CH4_IREMAP, /**<
- Timer 5 channel 4 internal remapping */
- AFIO_REMAP_PD01 = AFIO_MAPR_PD01_REMAP, /**<
- Port D0/Port D1 mapping on OSC_IN/OSC_OUT */
- AFIO_REMAP_CAN_1 = AFIO_MAPR_CAN_REMAP_PB8_PB9, /**<
- CAN alternate function remapping 1 (RX on PB8, TX on PB9) */
- AFIO_REMAP_CAN_2 = AFIO_MAPR_CAN_REMAP_PD0_PD1, /**<
- CAN alternate function remapping 2 (RX on PD0, TX on PD1) */
- AFIO_REMAP_TIM4 = AFIO_MAPR_TIM4_REMAP, /**<
- Timer 4 remapping */
- AFIO_REMAP_TIM3_PARTIAL = AFIO_MAPR_TIM3_REMAP_PARTIAL, /**<
- Timer 3 partial remapping */
- AFIO_REMAP_TIM3_FULL = AFIO_MAPR_TIM3_REMAP_FULL, /**<
- Timer 3 full remapping */
- AFIO_REMAP_TIM2_PARTIAL_1 = AFIO_MAPR_TIM2_REMAP_PA15_PB3_PA2_PA3, /**<
- Timer 2 partial remapping 1 (CH1 and ETR on PA15, CH2 on PB3, CH3
- on PA2, CH4 on PA3) */
- AFIO_REMAP_TIM2_PARTIAL_2 = AFIO_MAPR_TIM2_REMAP_PA0_PA1_PB10_PB11, /**<
- Timer 2 partial remapping 2 (CH1 and ETR on PA0, CH2 on PA1, CH3
- on PB10, CH4 on PB11) */
- AFIO_REMAP_TIM2_FULL = AFIO_MAPR_TIM2_REMAP_FULL, /**<
- Timer 2 full remapping */
- AFIO_REMAP_USART2 = AFIO_MAPR_USART2_REMAP, /**<
- USART 2 remapping */
- AFIO_REMAP_USART1 = AFIO_MAPR_USART1_REMAP, /**<
- USART 1 remapping */
- AFIO_REMAP_I2C1 = AFIO_MAPR_I2C1_REMAP, /**<
- I2C 1 remapping */
- AFIO_REMAP_SPI1 = AFIO_MAPR_SPI1_REMAP, /**<
- SPI 1 remapping */
- AFIO_REMAP_FSMC_NADV = (AFIO_MAPR2_FSMC_NADV |
- AFIO_REMAP_USE_MAPR2), /**<
- NADV signal not connected */
- AFIO_REMAP_TIM14 = (AFIO_MAPR2_TIM14_REMAP |
- AFIO_REMAP_USE_MAPR2), /**<
- Timer 14 remapping */
- AFIO_REMAP_TIM13 = (AFIO_MAPR2_TIM13_REMAP |
- AFIO_REMAP_USE_MAPR2), /**<
- Timer 13 remapping */
- AFIO_REMAP_TIM11 = (AFIO_MAPR2_TIM11_REMAP |
- AFIO_REMAP_USE_MAPR2), /**<
- Timer 11 remapping */
- AFIO_REMAP_TIM10 = (AFIO_MAPR2_TIM10_REMAP |
- AFIO_REMAP_USE_MAPR2), /**<
- Timer 10 remapping */
- AFIO_REMAP_TIM9 = (AFIO_MAPR2_TIM9_REMAP |
- AFIO_REMAP_USE_MAPR2) /**<
- Timer 9 */
+ /** ADC 2 external trigger regular conversion remapping */
+ AFIO_REMAP_ADC2_ETRGREG = AFIO_MAPR_ADC2_ETRGREG_REMAP,
+ /** ADC 2 external trigger injected conversion remapping */
+ AFIO_REMAP_ADC2_ETRGINJ = AFIO_MAPR_ADC2_ETRGINJ_REMAP,
+ /** ADC 1 external trigger regular conversion remapping */
+ AFIO_REMAP_ADC1_ETRGREG = AFIO_MAPR_ADC1_ETRGREG_REMAP,
+ /** ADC 1 external trigger injected conversion remapping */
+ AFIO_REMAP_ADC1_ETRGINJ = AFIO_MAPR_ADC1_ETRGINJ_REMAP,
+ /** Timer 5 channel 4 internal remapping */
+ AFIO_REMAP_TIM5CH4_I = AFIO_MAPR_TIM5CH4_IREMAP,
+ /** Port D0/Port D1 mapping on OSC_IN/OSC_OUT */
+ AFIO_REMAP_PD01 = AFIO_MAPR_PD01_REMAP,
+ /** CAN alternate function remapping 1 (RX on PB8, TX on PB9) */
+ AFIO_REMAP_CAN_1 = AFIO_MAPR_CAN_REMAP_PB8_PB9,
+ /** CAN alternate function remapping 2 (RX on PD0, TX on PD1) */
+ AFIO_REMAP_CAN_2 = AFIO_MAPR_CAN_REMAP_PD0_PD1,
+ /** Timer 4 remapping */
+ AFIO_REMAP_TIM4 = AFIO_MAPR_TIM4_REMAP,
+ /** Timer 3 partial remapping */
+ AFIO_REMAP_TIM3_PARTIAL = AFIO_MAPR_TIM3_REMAP_PARTIAL,
+ /** Timer 3 full remapping */
+ AFIO_REMAP_TIM3_FULL = AFIO_MAPR_TIM3_REMAP_FULL,
+ /**
+ * Timer 2 partial remapping 1 (CH1 and ETR on PA15, CH2 on PB3,
+ * CH3 on PA2, CH4 on PA3) */
+ AFIO_REMAP_TIM2_PARTIAL_1 = AFIO_MAPR_TIM2_REMAP_PA15_PB3_PA2_PA3,
+ /**
+ * Timer 2 partial remapping 2 (CH1 and ETR on PA0, CH2 on PA1,
+ * CH3 on PB10, CH4 on PB11) */
+ AFIO_REMAP_TIM2_PARTIAL_2 = AFIO_MAPR_TIM2_REMAP_PA0_PA1_PB10_PB11,
+ /** Timer 2 full remapping */
+ AFIO_REMAP_TIM2_FULL = AFIO_MAPR_TIM2_REMAP_FULL,
+ /** USART 2 remapping */
+ AFIO_REMAP_USART2 = AFIO_MAPR_USART2_REMAP,
+ /** USART 1 remapping */
+ AFIO_REMAP_USART1 = AFIO_MAPR_USART1_REMAP,
+ /** I2C 1 remapping */
+ AFIO_REMAP_I2C1 = AFIO_MAPR_I2C1_REMAP,
+ /** SPI 1 remapping */
+ AFIO_REMAP_SPI1 = AFIO_MAPR_SPI1_REMAP,
+ /** NADV signal not connected */
+ AFIO_REMAP_FSMC_NADV = AFIO_MAPR2_FSMC_NADV | AFIO_REMAP_USE_MAPR2,
+ /** Timer 14 remapping */
+ AFIO_REMAP_TIM14 = AFIO_MAPR2_TIM14_REMAP | AFIO_REMAP_USE_MAPR2,
+ /** Timer 13 remapping */
+ AFIO_REMAP_TIM13 = AFIO_MAPR2_TIM13_REMAP | AFIO_REMAP_USE_MAPR2,
+ /** Timer 11 remapping */
+ AFIO_REMAP_TIM11 = AFIO_MAPR2_TIM11_REMAP | AFIO_REMAP_USE_MAPR2,
+ /** Timer 10 remapping */
+ AFIO_REMAP_TIM10 = AFIO_MAPR2_TIM10_REMAP | AFIO_REMAP_USE_MAPR2,
+ /** Timer 9 remapping */
+ AFIO_REMAP_TIM9 = AFIO_MAPR2_TIM9_REMAP | AFIO_REMAP_USE_MAPR2,
} afio_remap_peripheral;
void afio_remap(afio_remap_peripheral p);
@@ -395,16 +382,14 @@ void afio_remap(afio_remap_peripheral p);
* @see afio_cfg_debug_ports()
*/
typedef enum afio_debug_cfg {
- AFIO_DEBUG_FULL_SWJ = AFIO_MAPR_SWJ_CFG_FULL_SWJ, /**<
- Full Serial Wire and JTAG debug */
- AFIO_DEBUG_FULL_SWJ_NO_NJRST = AFIO_MAPR_SWJ_CFG_FULL_SWJ_NO_NJRST, /**<
- Full Serial Wire and JTAG, but no NJTRST. */
- AFIO_DEBUG_SW_ONLY = AFIO_MAPR_SWJ_CFG_NO_JTAG_SW, /**<
- Serial Wire debug only (JTAG-DP disabled,
- SW-DP enabled) */
- AFIO_DEBUG_NONE = AFIO_MAPR_SWJ_CFG_NO_JTAG_NO_SW /**<
- No debug; all JTAG and SW pins are free
- for use as GPIOs. */
+ /** Full Serial Wire and JTAG debug */
+ AFIO_DEBUG_FULL_SWJ = AFIO_MAPR_SWJ_CFG_FULL_SWJ,
+ /** Full Serial Wire and JTAG, but no NJTRST. */
+ AFIO_DEBUG_FULL_SWJ_NO_NJRST = AFIO_MAPR_SWJ_CFG_FULL_SWJ_NO_NJRST,
+ /** Serial Wire debug only (JTAG-DP disabled, SW-DP enabled) */
+ AFIO_DEBUG_SW_ONLY = AFIO_MAPR_SWJ_CFG_NO_JTAG_SW,
+ /** No debug; all JTAG and SW pins are free for use as GPIOs. */
+ AFIO_DEBUG_NONE = AFIO_MAPR_SWJ_CFG_NO_JTAG_NO_SW,
} afio_debug_cfg;
/**