diff options
Diffstat (limited to 'libmaple/stm32f1')
| -rw-r--r-- | libmaple/stm32f1/include/series/timer.h | 42 | ||||
| -rw-r--r-- | libmaple/stm32f1/timer.c | 83 |
2 files changed, 117 insertions, 8 deletions
diff --git a/libmaple/stm32f1/include/series/timer.h b/libmaple/stm32f1/include/series/timer.h index 9bd273e..2551f70 100644 --- a/libmaple/stm32f1/include/series/timer.h +++ b/libmaple/stm32f1/include/series/timer.h @@ -33,11 +33,10 @@ #ifndef _LIBMAPLE_STM32F1_TIMER_H_ #define _LIBMAPLE_STM32F1_TIMER_H_ -#include <libmaple/libmaple.h> -#include <series/timer.h> +#include <libmaple/libmaple_types.h> /* - * Register maps and devices + * Register maps and base pointers */ /** STM32F1 general purpose timer register map type */ @@ -64,6 +63,10 @@ typedef struct timer_gen_reg_map { __io uint32 DMAR; /**< DMA address for full transfer */ } timer_gen_reg_map; +struct timer_adv_reg_map; +struct timer_gen_reg_map; +struct timer_bas_reg_map; + /** Timer 1 register map base pointer */ #define TIMER1_BASE ((struct timer_adv_reg_map*)0x40012C00) /** Timer 2 register map base pointer */ @@ -72,7 +75,6 @@ typedef struct timer_gen_reg_map { #define TIMER3_BASE ((struct timer_gen_reg_map*)0x40000400) /** Timer 4 register map base pointer */ #define TIMER4_BASE ((struct timer_gen_reg_map*)0x40000800) -#if defined(STM32_HIGH_DENSITY) || defined(STM32_XL_DENSITY) /** Timer 5 register map base pointer */ #define TIMER5_BASE ((struct timer_gen_reg_map*)0x40000C00) /** Timer 6 register map base pointer */ @@ -81,7 +83,29 @@ typedef struct timer_gen_reg_map { #define TIMER7_BASE ((struct timer_bas_reg_map*)0x40001400) /** Timer 8 register map base pointer */ #define TIMER8_BASE ((struct timer_adv_reg_map*)0x40013400) -#endif +/** Timer 9 register map base pointer */ +#define TIMER9_BASE ((struct timer_gen_reg_map*)0x40014C00) +/** Timer 10 register map base pointer */ +#define TIMER10_BASE ((struct timer_gen_reg_map*)0x40015000) +/** Timer 11 register map base pointer */ +#define TIMER11_BASE ((struct timer_gen_reg_map*)0x40015400) +/** Timer 12 register map base pointer */ +#define TIMER12_BASE ((struct timer_gen_reg_map*)0x40001800) +/** Timer 13 register map base pointer */ +#define TIMER13_BASE ((struct timer_gen_reg_map*)0x40001C00) +/** Timer 14 register map base pointer */ +#define TIMER14_BASE ((struct timer_gen_reg_map*)0x40002000) + +/* + * Device pointers + * + * We only declare device pointers to timers which actually exist on + * the target MCU. This helps when porting programs to STM32F1 (or + * within F1 to a lower density MCU), as attempts to use nonexistent + * timers cause build errors instead of undefined behavior. + */ + +struct timer_dev; extern struct timer_dev *TIMER1; extern struct timer_dev *TIMER2; @@ -93,5 +117,13 @@ extern struct timer_dev *TIMER6; extern struct timer_dev *TIMER7; extern struct timer_dev *TIMER8; #endif +#ifdef STM32_XL_DENSITY +extern struct timer_dev *TIMER9; +extern struct timer_dev *TIMER10; +extern struct timer_dev *TIMER11; +extern struct timer_dev *TIMER12; +extern struct timer_dev *TIMER13; +extern struct timer_dev *TIMER14; +#endif #endif diff --git a/libmaple/stm32f1/timer.c b/libmaple/stm32f1/timer.c index 7506cb6..899abbc 100644 --- a/libmaple/stm32f1/timer.c +++ b/libmaple/stm32f1/timer.c @@ -30,14 +30,30 @@ * @brief STM32F1 timer support. */ +/* Notes: + * + * - We use STM32F1 density test macros throughout to avoid defining + * symbols or linking in code that would use timers that are + * unavailable in a given density. For example, TIM5 doesn't exist + * on medium-density, and TIM9 doesn't exist on high-density, so we + * don't define or use TIM5 when being compiled for medium-density, + * and similarly for TIM9 and high-density. + * + * This makes a mess, but helps avoid bloat and ensures backwards + * compatibility. Since the mess is manageable and there don't seem + * to be any plans on ST's part to add new STM32F1 lines or + * densities, we'll live with it. + */ + #include <libmaple/timer.h> #include "timer_private.h" /* * Devices + * + * Defer to the timer_private API. */ -/* Use timer_private macros to save typing. */ static DECLARE_ADVANCED_TIMER(timer1, 1); static DECLARE_GENERAL_TIMER(timer2, 2); static DECLARE_GENERAL_TIMER(timer3, 3); @@ -66,7 +82,35 @@ timer_dev *TIMER6 = &timer6; timer_dev *TIMER7 = &timer7; /** Timer 8 device (advanced) */ timer_dev *TIMER8 = &timer8; -#endif +#endif /* defined(STM32_HIGH_DENSITY) || defined(STM32_XL_DENSITY) */ + +#ifdef STM32_XL_DENSITY +/* 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 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; +#endif /* STM32_XL_DENSITY */ /* * Routines @@ -87,22 +131,46 @@ void timer_foreach(void (*fn)(timer_dev*)) { fn(TIMER7); fn(TIMER8); #endif +#ifdef STM32_XL_DENSITY + fn(TIMER9); + fn(TIMER10); + fn(TIMER11); + fn(TIMER12); + fn(TIMER13); + fn(TIMER14); +#endif } /* * IRQ handlers + * + * Defer to the timer_private dispatch API. + * + * FIXME: The names of these handlers are inaccurate since XL-density + * devices came out. Update these to match the STM32F2 names, maybe + * using some weak symbol magic to preserve backwards compatibility if + * possible. */ void __irq_tim1_brk(void) { dispatch_adv_brk(TIMER1); +#ifdef STM32_XL_DENSITY + dispatch_tim_9_12(TIMER9); +#endif } void __irq_tim1_up(void) { dispatch_adv_up(TIMER1); +#ifdef STM32_XL_DENSITY + dispatch_tim_10_11_13_14(TIMER10); +#endif } void __irq_tim1_trg_com(void) { dispatch_adv_trg_com(TIMER1); +#ifdef STM32_XL_DENSITY + dispatch_tim_10_11_13_14(TIMER11); +#endif } void __irq_tim1_cc(void) { @@ -136,17 +204,26 @@ void __irq_tim7(void) { void __irq_tim8_brk(void) { dispatch_adv_brk(TIMER8); +#ifdef STM32_XL_DENSITY + dispatch_tim_9_12(TIMER12); +#endif } void __irq_tim8_up(void) { dispatch_adv_up(TIMER8); +#ifdef STM32_XL_DENSITY + dispatch_tim_10_11_13_14(TIMER13); +#endif } void __irq_tim8_trg_com(void) { dispatch_adv_trg_com(TIMER8); +#ifdef STM32_XL_DENSITY + dispatch_tim_10_11_13_14(TIMER14); +#endif } void __irq_tim8_cc(void) { dispatch_adv_cc(TIMER8); } -#endif +#endif /* defined(STM32_HIGH_DENSITY) || defined(STM32_XL_DENSITY) */ |