diff options
Diffstat (limited to 'src/stm/ao_arch_funcs.h')
| -rw-r--r-- | src/stm/ao_arch_funcs.h | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h index b461cd3f..7ad3b4b8 100644 --- a/src/stm/ao_arch_funcs.h +++ b/src/stm/ao_arch_funcs.h @@ -64,6 +64,9 @@ #define AO_SPI_INDEX(id) ((id) & AO_SPI_INDEX_MASK) #define AO_SPI_CONFIG(id) ((id) & AO_SPI_CONFIG_MASK) +uint8_t +ao_spi_try_get(uint8_t spi_index, uint32_t speed, uint8_t task_id); + void ao_spi_get(uint8_t spi_index, uint32_t speed); @@ -77,6 +80,9 @@ void ao_spi_send_fixed(uint8_t value, uint16_t len, uint8_t spi_index); void +ao_spi_send_sync(void *block, uint16_t len, uint8_t spi_index); + +void ao_spi_recv(void *block, uint16_t len, uint8_t spi_index); void @@ -95,6 +101,15 @@ ao_spi_init(void); ao_spi_set_cs(reg,mask); \ } while (0) +static inline uint8_t +ao_spi_try_get_mask(struct stm_gpio *reg, uint16_t mask, uint8_t bus, uint32_t speed, uint8_t task_id) +{ + if (!ao_spi_try_get(bus, speed, task_id)) + return 0; + ao_spi_set_cs(reg, mask); + return 1; +} + #define ao_spi_put_mask(reg,mask,bus) do { \ ao_spi_clr_cs(reg,mask); \ ao_spi_put(bus); \ @@ -252,6 +267,8 @@ extern struct ao_stm_usart ao_stm_usart3; #define ARM_PUSH32(stack, val) (*(--(stack)) = (val)) +typedef uint32_t ao_arch_irq_t; + static inline uint32_t ao_arch_irqsave(void) { uint32_t primask; @@ -369,10 +386,10 @@ static inline void ao_arch_start_scheduler(void) { ao_arch_block_interrupts(); \ } while (0) -#define ao_arch_critical(b) do { \ - ao_arch_block_interrupts(); \ - do { b } while (0); \ - ao_arch_release_interrupts(); \ +#define ao_arch_critical(b) do { \ + uint32_t __mask = ao_arch_irqsave(); \ + do { b } while (0); \ + ao_arch_irqrestore(__mask); \ } while (0) #endif /* _AO_ARCH_FUNCS_H_ */ |