diff options
Diffstat (limited to 'supervisor/shared/external_flash/spi_flash.c')
| -rw-r--r-- | supervisor/shared/external_flash/spi_flash.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/supervisor/shared/external_flash/spi_flash.c b/supervisor/shared/external_flash/spi_flash.c index 67e64c970..3ddd92b5e 100644 --- a/supervisor/shared/external_flash/spi_flash.c +++ b/supervisor/shared/external_flash/spi_flash.c @@ -38,12 +38,13 @@ digitalio_digitalinout_obj_t cs_pin; busio_spi_obj_t supervisor_flash_spi_bus; -const external_flash_device* flash_device; +const external_flash_device *flash_device; uint32_t spi_flash_baudrate; // Enable the flash over SPI. static void flash_enable(void) { - while (!common_hal_busio_spi_try_lock(&supervisor_flash_spi_bus)) {} + while (!common_hal_busio_spi_try_lock(&supervisor_flash_spi_bus)) { + } common_hal_digitalio_digitalinout_set_value(&cs_pin, false); } @@ -53,7 +54,7 @@ static void flash_disable(void) { common_hal_busio_spi_unlock(&supervisor_flash_spi_bus); } -static bool transfer(uint8_t* command, uint32_t command_length, uint8_t* data_in, uint8_t* data_out, uint32_t data_length) { +static bool transfer(uint8_t *command, uint32_t command_length, uint8_t *data_in, uint8_t *data_out, uint32_t data_length) { flash_enable(); bool status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, command, command_length); if (status) { @@ -69,7 +70,7 @@ static bool transfer(uint8_t* command, uint32_t command_length, uint8_t* data_in return status; } -static bool transfer_command(uint8_t command, uint8_t* data_in, uint8_t* data_out, uint32_t data_length) { +static bool transfer_command(uint8_t command, uint8_t *data_in, uint8_t *data_out, uint32_t data_length) { return transfer(&command, 1, data_in, data_out, data_length); } @@ -77,16 +78,16 @@ bool spi_flash_command(uint8_t command) { return transfer_command(command, NULL, NULL, 0); } -bool spi_flash_read_command(uint8_t command, uint8_t* data, uint32_t data_length) { +bool spi_flash_read_command(uint8_t command, uint8_t *data, uint32_t data_length) { return transfer_command(command, NULL, data, data_length); } -bool spi_flash_write_command(uint8_t command, uint8_t* data, uint32_t data_length) { +bool spi_flash_write_command(uint8_t command, uint8_t *data, uint32_t data_length) { return transfer_command(command, data, NULL, data_length); } // Pack the low 24 bits of the address into a uint8_t array. -static void address_to_bytes(uint32_t address, uint8_t* bytes) { +static void address_to_bytes(uint32_t address, uint8_t *bytes) { bytes[0] = (address >> 16) & 0xff; bytes[1] = (address >> 8) & 0xff; bytes[2] = address & 0xff; @@ -98,7 +99,7 @@ bool spi_flash_sector_command(uint8_t command, uint32_t address) { return transfer(request, 4, NULL, NULL, 0); } -bool spi_flash_write_data(uint32_t address, uint8_t* data, uint32_t data_length) { +bool spi_flash_write_data(uint32_t address, uint8_t *data, uint32_t data_length) { uint8_t request[4] = {CMD_PAGE_PROGRAM, 0x00, 0x00, 0x00}; // Write the SPI flash write address into the bytes following the command byte. address_to_bytes(address, request + 1); @@ -112,7 +113,7 @@ bool spi_flash_write_data(uint32_t address, uint8_t* data, uint32_t data_length) return status; } -bool spi_flash_read_data(uint32_t address, uint8_t* data, uint32_t data_length) { +bool spi_flash_read_data(uint32_t address, uint8_t *data, uint32_t data_length) { uint8_t request[5] = {CMD_READ_DATA, 0x00, 0x00, 0x00}; uint8_t command_length = 4; if (flash_device->supports_fast_read) { @@ -145,7 +146,7 @@ void spi_flash_init(void) { common_hal_busio_spi_never_reset(&supervisor_flash_spi_bus); } -void spi_flash_init_device(const external_flash_device* device) { +void spi_flash_init_device(const external_flash_device *device) { flash_device = device; spi_flash_baudrate = device->max_clock_speed_mhz * 1000000; if (spi_flash_baudrate > SPI_FLASH_MAX_BAUDRATE) { |