From 31fbdb5994338592c1b122b52c04bffaaddb3be8 Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Tue, 10 Apr 2012 15:23:38 -0400 Subject: STM32F2: Add timer support. Standard series peripheral support patch, containing STM32F2 series timer.h and timer.c. Signed-off-by: Marti Bolivar --- libmaple/stm32f2/timer.c | 185 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 185 insertions(+) create mode 100644 libmaple/stm32f2/timer.c (limited to 'libmaple/stm32f2/timer.c') diff --git a/libmaple/stm32f2/timer.c b/libmaple/stm32f2/timer.c new file mode 100644 index 0000000..eed7810 --- /dev/null +++ b/libmaple/stm32f2/timer.c @@ -0,0 +1,185 @@ +/****************************************************************************** + * 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/timer.c + * @author Marti Bolivar + * @brief STM32F2 timer support. + */ + +#include +#include "timer_private.h" + +/* + * Devices + * + * Defer to the timer_private API for declaring these. + */ + +static DECLARE_ADVANCED_TIMER(timer1, 1); +static DECLARE_GENERAL_TIMER(timer2, 2); +static DECLARE_GENERAL_TIMER(timer3, 3); +static DECLARE_GENERAL_TIMER(timer4, 4); +static DECLARE_GENERAL_TIMER(timer5, 5); +static DECLARE_BASIC_TIMER(timer6, 6); +static DECLARE_BASIC_TIMER(timer7, 7); +static DECLARE_ADVANCED_TIMER(timer8, 8); +/* TIM9 has UIE, CC1IE, CC2IE, TIE bits in DIER. */ +static DECLARE_RESTRICTED_GENERAL_TIMER(timer9, 9, TIMER_DIER_TIE_BIT); +/* TIM10 has UIE, CC1IE. */ +static DECLARE_RESTRICTED_GENERAL_TIMER(timer10, 10, TIMER_DIER_CC1IE_BIT); +/* TIM11 has UIE, CC1IE. */ +static DECLARE_RESTRICTED_GENERAL_TIMER(timer11, 11, TIMER_DIER_CC1IE_BIT); +/* TIM12 has UIE, CC1IE, CC2IE, TIE. */ +static DECLARE_RESTRICTED_GENERAL_TIMER(timer12, 12, TIMER_DIER_TIE_BIT); +/* TIM13 has UIE, CC1IE. */ +static DECLARE_RESTRICTED_GENERAL_TIMER(timer13, 13, TIMER_DIER_CC1IE_BIT); +/* TIM14 has UIE, CC1IE. */ +static DECLARE_RESTRICTED_GENERAL_TIMER(timer14, 14, TIMER_DIER_CC1IE_BIT); + +/** Timer 1 device (advanced) */ +timer_dev *TIMER1 = &timer1; +/** Timer 2 device (general-purpose) */ +timer_dev *TIMER2 = &timer2; +/** Timer 3 device (general-purpose) */ +timer_dev *TIMER3 = &timer3; +/** Timer 4 device (general-purpose) */ +timer_dev *TIMER4 = &timer4; +/** Timer 5 device (general-purpose) */ +timer_dev *TIMER5 = &timer5; +/** Timer 6 device (basic) */ +timer_dev *TIMER6 = &timer6; +/** Timer 7 device (basic) */ +timer_dev *TIMER7 = &timer7; +/** Timer 8 device (advanced) */ +timer_dev *TIMER8 = &timer8; +/** Timer 9 device (general-purpose) */ +timer_dev *TIMER9 = &timer9; +/** Timer 10 device (general-purpose) */ +timer_dev *TIMER10 = &timer10; +/** Timer 11 device (general-purpose) */ +timer_dev *TIMER11 = &timer11; +/** Timer 12 device (general-purpose) */ +timer_dev *TIMER12 = &timer12; +/** Timer 13 device (general-purpose) */ +timer_dev *TIMER13 = &timer13; +/** Timer 14 device (general-purpose) */ +timer_dev *TIMER14 = &timer14; + +/* + * Routines + */ + +/** + * @brief Call a function on timer devices. + * @param fn Function to call on each timer device. + */ +void timer_foreach(void (*fn)(timer_dev*)) { + fn(TIMER1); + fn(TIMER2); + fn(TIMER3); + fn(TIMER4); + fn(TIMER5); + fn(TIMER6); + fn(TIMER7); + fn(TIMER8); + fn(TIMER9); + fn(TIMER10); + fn(TIMER11); + fn(TIMER12); + fn(TIMER13); + fn(TIMER14); +} + +/* + * IRQ handlers + * + * Defer to the timer_private dispatch API. + */ + +void __irq_tim1_brk_tim9(void) { + dispatch_adv_brk(TIMER1); + dispatch_tim_9_12(TIMER9); +} + +void __irq_tim1_up_tim10(void) { + dispatch_adv_up(TIMER1); + dispatch_tim_10_11_13_14(TIMER10); +} + +void __irq_tim1_trg_com_tim11(void) { + dispatch_adv_trg_com(TIMER1); + dispatch_tim_10_11_13_14(TIMER11); +} + +void __irq_tim1_cc(void) { + dispatch_adv_cc(TIMER1); +} + +void __irq_tim2(void) { + dispatch_general(TIMER2); +} + +void __irq_tim3(void) { + dispatch_general(TIMER3); +} + +void __irq_tim4(void) { + dispatch_general(TIMER4); +} + +void __irq_tim5(void) { + dispatch_general(TIMER5); +} + +/* FIXME: this is also the DAC DMA underrun interrupt, so it needs a + * different name (and to be supported?). */ +void __irq_tim6(void) { + dispatch_basic(TIMER6); +} + +void __irq_tim7(void) { + dispatch_basic(TIMER7); +} + +void __irq_tim8_brk_tim12(void) { + dispatch_adv_brk(TIMER8); + dispatch_tim_9_12(TIMER12); +} + +void __irq_tim8_up_tim13(void) { + dispatch_adv_up(TIMER8); + dispatch_tim_10_11_13_14(TIMER13); +} + +void __irq_tim8_trg_com_tim14(void) { + dispatch_adv_trg_com(TIMER8); + dispatch_tim_10_11_13_14(TIMER14); +} + +void __irq_tim8_cc(void) { + dispatch_adv_cc(TIMER8); +} -- cgit v1.2.3