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stm32-l053r8-em9304: update num bytes available only after reading it

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This commit is contained in:
Matthias Ringwald 2017-06-29 16:30:26 +02:00
parent 72c93b66ff
commit 43170ba299
1 changed files with 10 additions and 8 deletions
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18
port/stm32-l053r8-em9304/port.c
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@ -166,6 +166,7 @@ static uint8_t hal_spi_em9304_slave_status[2];
static uint8_t hal_spi_em9304_rx_buffer[SPI_EM9304_RX_BUFFER_SIZE];
static uint16_t hal_spi_em9304_rx_pos;
static uint16_t hal_spi_em9304_rx_request_len;
static const uint8_t * hal_uart_dma_tx_data;
static uint16_t hal_uart_dma_tx_size;
@ -181,7 +182,6 @@ static void (*tx_done_handler)(void) = &dummy_handler;
static inline void hal_spi_em9304_trigger_run_loop(void){
btstack_run_loop_embedded_trigger();
// run_loop_triggered = 1;
}
static inline int hal_spi_em9304_rdy(void){
@ -280,11 +280,10 @@ static void hal_spi_em9304_process(btstack_data_source_t *ds, btstack_data_sourc
// chip select
HAL_GPIO_WritePin(SPI1_CSN_GPIO_Port, SPI1_CSN_Pin, GPIO_PIN_RESET);
// wait for read command sent
hal_spi_em9304_state = SPI_EM9304_RX_W4_READ_COMMAND_SENT;
// send read command
hal_spi_em9304_state = SPI_EM9304_RX_W4_READ_COMMAND_SENT;
HAL_SPI_TransmitReceive_DMA(&hspi1, (uint8_t*) hal_spi_em9304_read_command, hal_spi_em9304_slave_status, sizeof(hal_spi_em9304_read_command));
} else if (hal_uart_dma_tx_size){
// chip select
HAL_GPIO_WritePin(SPI1_CSN_GPIO_Port, SPI1_CSN_Pin, GPIO_PIN_RESET);
@ -311,15 +310,18 @@ static void hal_spi_em9304_process(btstack_data_source_t *ds, btstack_data_sourc
bytes_to_read = hal_spi_em9304_rx_free_bytes();
}
// wait for data received
hal_spi_em9304_state = SPI_EM9304_RX_W4_DATA_RECEIVED;
// read all data
hal_spi_em9304_state = SPI_EM9304_RX_W4_DATA_RECEIVED;
hal_spi_em9304_rx_request_len = bytes_to_read;
// HAL_SPI_TransmitReceive_DMA(&hspi1, spi_sequence, &hal_spi_em9304_rx_buffer[hal_spi_em9304_rx_pos], bytes_to_read);
HAL_SPI_Receive_DMA(&hspi1, &hal_spi_em9304_rx_buffer[hal_spi_em9304_rx_pos], bytes_to_read);
hal_spi_em9304_rx_pos += bytes_to_read;
break;
case SPI_EM9304_RX_DATA_RECEIVED:
// now, data is available
hal_spi_em9304_rx_pos += hal_spi_em9304_rx_request_len;
// chip deselect
HAL_GPIO_WritePin(SPI1_CSN_GPIO_Port, SPI1_CSN_Pin, GPIO_PIN_SET);