diff options
Diffstat (limited to 'src/stm/stm32l.h')
| -rw-r--r-- | src/stm/stm32l.h | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/src/stm/stm32l.h b/src/stm/stm32l.h index 0bc7483e..cb66df6c 100644 --- a/src/stm/stm32l.h +++ b/src/stm/stm32l.h @@ -855,10 +855,7 @@ isr(tim7) struct stm_syscfg { vuint32_t memrmp; vuint32_t pmc; - vuint32_t exticr1; - vuint32_t exticr2; - vuint32_t exticr3; - vuint32_t exticr4; + vuint32_t exticr[4]; }; extern struct stm_syscfg stm_syscfg; @@ -871,6 +868,34 @@ extern struct stm_syscfg stm_syscfg; #define STM_SYSCFG_PMC_USB_PU 0 +#define STM_SYSCFG_EXTICR_PA 0 +#define STM_SYSCFG_EXTICR_PB 1 +#define STM_SYSCFG_EXTICR_PC 2 +#define STM_SYSCFG_EXTICR_PD 3 +#define STM_SYSCFG_EXTICR_PE 4 +#define STM_SYSCFG_EXTICR_PH 5 + +static inline void +stm_exticr_set(struct stm_gpio *gpio, int pin) { + uint8_t reg = pin >> 2; + uint8_t shift = (pin & 3) << 2; + uint8_t val = 0; + + if (gpio == &stm_gpioa) + val = STM_SYSCFG_EXTICR_PA; + else if (gpio == &stm_gpiob) + val = STM_SYSCFG_EXTICR_PB; + else if (gpio == &stm_gpioc) + val = STM_SYSCFG_EXTICR_PC; + else if (gpio == &stm_gpiod) + val = STM_SYSCFG_EXTICR_PD; + else if (gpio == &stm_gpioe) + val = STM_SYSCFG_EXTICR_PE; + + stm_syscfg.exticr[reg] = (stm_syscfg.exticr[reg] & ~(0xf << shift)) | val << shift; +} + + struct stm_dma_channel { vuint32_t ccr; vuint32_t cndtr; |