diff options
Diffstat (limited to 'src/stm/ao_arch_funcs.h')
| -rw-r--r-- | src/stm/ao_arch_funcs.h | 74 |
1 files changed, 73 insertions, 1 deletions
diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h index 42f1a2e5..2c017c79 100644 --- a/src/stm/ao_arch_funcs.h +++ b/src/stm/ao_arch_funcs.h @@ -82,6 +82,34 @@ 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); +static inline void +ao_spi_send_byte(uint8_t byte, uint8_t spi_index) +{ + struct stm_spi *stm_spi; + + switch (AO_SPI_INDEX(spi_index)) { + case 0: + stm_spi = &stm_spi1; + break; + case 1: + stm_spi = &stm_spi2; + break; + } + + stm_spi->cr2 = ((0 << STM_SPI_CR2_TXEIE) | + (0 << STM_SPI_CR2_RXNEIE) | + (0 << STM_SPI_CR2_ERRIE) | + (0 << STM_SPI_CR2_SSOE) | + (0 << STM_SPI_CR2_TXDMAEN) | + (0 << STM_SPI_CR2_RXDMAEN)); + + /* Clear RXNE */ + (void) stm_spi->dr; + + while (!(stm_spi->sr & (1 << STM_SPI_SR_TXE))); + stm_spi->dr = byte; +} + void ao_spi_recv(void *block, uint16_t len, uint8_t spi_index); @@ -149,6 +177,11 @@ ao_spi_try_get_mask(struct stm_gpio *reg, uint16_t mask, uint8_t bus, uint32_t s #define ao_gpio_get(port, bit, pin) stm_gpio_get(port, bit) +#define ao_gpio_set_bits(port, bits) stm_gpio_set_bits(port, bits) + +#define ao_gpio_clr_bits(port, bits) stm_gpio_clr_bits(port, bits); + + #define ao_enable_output(port,bit,pin,v) do { \ ao_enable_port(port); \ ao_gpio_set(port, bit, pin, v); \ @@ -245,12 +278,35 @@ ao_i2c_recv(void *block, uint16_t len, uint8_t i2c_index, uint8_t stop); void ao_i2c_init(void); +#if USE_SERIAL_1_SW_FLOW || USE_SERIAL_2_SW_FLOW || USE_SERIAL_3_SW_FLOW +#define HAS_SERIAL_SW_FLOW 1 +#else +#define HAS_SERIAL_SW_FLOW 0 +#endif + +#if USE_SERIAL_1_FLOW && !USE_SERIAL_1_SW_FLOW || USE_SERIAL_2_FLOW && !USE_SERIAL_2_SW_FLOW || USE_SERIAL_3_FLOW && !USE_SERIAL_3_SW_FLOW +#define HAS_SERIAL_HW_FLOW 1 +#else +#define HAS_SERIAL_HW_FLOW 0 +#endif + /* ao_serial_stm.c */ struct ao_stm_usart { struct ao_fifo rx_fifo; struct ao_fifo tx_fifo; struct stm_usart *reg; - uint8_t tx_started; + uint8_t tx_running; + uint8_t draining; +#if HAS_SERIAL_SW_FLOW + /* RTS - 0 if we have FIFO space, 1 if not + * CTS - 0 if we can send, 0 if not + */ + struct stm_gpio *gpio_rts; + struct stm_gpio *gpio_cts; + uint8_t pin_rts; + uint8_t pin_cts; + uint8_t rts; +#endif }; #if HAS_SERIAL_1 @@ -359,6 +415,22 @@ static inline void ao_arch_restore_stack(void) { #define HAS_SAMPLE_PROFILE 0 #endif +#if DEBUG +#define HAS_ARCH_VALIDATE_CUR_STACK 1 + +static inline void +ao_validate_cur_stack(void) +{ + uint8_t *psp; + + asm("mrs %0,psp" : "=&r" (psp)); + if (ao_cur_task && + psp <= ao_cur_task->stack && + psp >= ao_cur_task->stack - 256) + ao_panic(AO_PANIC_STACK); +} +#endif + #if !HAS_SAMPLE_PROFILE #define HAS_ARCH_START_SCHEDULER 1 |