diff options
| author | Lucian Copeland <hierophect@gmail.com> | 2020-01-28 17:11:25 -0500 |
|---|---|---|
| committer | Lucian Copeland <hierophect@gmail.com> | 2020-01-28 17:11:25 -0500 |
| commit | 3c8600554654926fe88d65fc0b5d668c0bea476a (patch) | |
| tree | a7ad0c6d6d27b5d4e77e8d8abfe3d3c8ad5a35ab /supervisor/shared | |
| parent | b5b94b72c1cef10de16d4c30761791238ce204da (diff) | |
Implement requested changes
Diffstat (limited to 'supervisor/shared')
| -rw-r--r-- | supervisor/shared/external_flash/spi_flash.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/supervisor/shared/external_flash/spi_flash.c b/supervisor/shared/external_flash/spi_flash.c index 12888f2d3..67e64c970 100644 --- a/supervisor/shared/external_flash/spi_flash.c +++ b/supervisor/shared/external_flash/spi_flash.c @@ -36,33 +36,33 @@ #include "py/mpconfig.h" digitalio_digitalinout_obj_t cs_pin; -busio_spi_obj_t spi; +busio_spi_obj_t supervisor_flash_spi_bus; 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(&spi)) {} + while (!common_hal_busio_spi_try_lock(&supervisor_flash_spi_bus)) {} common_hal_digitalio_digitalinout_set_value(&cs_pin, false); } // Disable the flash over SPI. static void flash_disable(void) { common_hal_digitalio_digitalinout_set_value(&cs_pin, true); - common_hal_busio_spi_unlock(&spi); + 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) { flash_enable(); - bool status = common_hal_busio_spi_write(&spi, command, command_length); + bool status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, command, command_length); if (status) { if (data_in != NULL && data_out != NULL) { - status = common_hal_busio_spi_transfer(&spi, data_out, data_in, data_length); + status = common_hal_busio_spi_transfer(&supervisor_flash_spi_bus, data_out, data_in, data_length); } else if (data_out != NULL) { - status = common_hal_busio_spi_read(&spi, data_out, data_length, 0xff); + status = common_hal_busio_spi_read(&supervisor_flash_spi_bus, data_out, data_length, 0xff); } else if (data_in != NULL) { - status = common_hal_busio_spi_write(&spi, data_in, data_length); + status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, data_in, data_length); } } flash_disable(); @@ -103,10 +103,10 @@ bool spi_flash_write_data(uint32_t address, uint8_t* data, uint32_t data_length) // Write the SPI flash write address into the bytes following the command byte. address_to_bytes(address, request + 1); flash_enable(); - common_hal_busio_spi_configure(&spi, spi_flash_baudrate, 0, 0, 8); - bool status = common_hal_busio_spi_write(&spi, request, 4); + common_hal_busio_spi_configure(&supervisor_flash_spi_bus, spi_flash_baudrate, 0, 0, 8); + bool status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, request, 4); if (status) { - status = common_hal_busio_spi_write(&spi, data, data_length); + status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, data, data_length); } flash_disable(); return status; @@ -122,10 +122,10 @@ bool spi_flash_read_data(uint32_t address, uint8_t* data, uint32_t data_length) // Write the SPI flash write address into the bytes following the command byte. address_to_bytes(address, request + 1); flash_enable(); - common_hal_busio_spi_configure(&spi, spi_flash_baudrate, 0, 0, 8); - bool status = common_hal_busio_spi_write(&spi, request, command_length); + common_hal_busio_spi_configure(&supervisor_flash_spi_bus, spi_flash_baudrate, 0, 0, 8); + bool status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, request, command_length); if (status) { - status = common_hal_busio_spi_read(&spi, data, data_length, 0xff); + status = common_hal_busio_spi_read(&supervisor_flash_spi_bus, data, data_length, 0xff); } flash_disable(); return status; @@ -140,9 +140,9 @@ void spi_flash_init(void) { common_hal_digitalio_digitalinout_switch_to_output(&cs_pin, true, DRIVE_MODE_PUSH_PULL); common_hal_digitalio_digitalinout_never_reset(&cs_pin); - spi.base.type = &busio_spi_type; - common_hal_busio_spi_construct(&spi, SPI_FLASH_SCK_PIN, SPI_FLASH_MOSI_PIN, SPI_FLASH_MISO_PIN); - common_hal_busio_spi_never_reset(&spi); + supervisor_flash_spi_bus.base.type = &busio_spi_type; + common_hal_busio_spi_construct(&supervisor_flash_spi_bus, SPI_FLASH_SCK_PIN, SPI_FLASH_MOSI_PIN, SPI_FLASH_MISO_PIN); + common_hal_busio_spi_never_reset(&supervisor_flash_spi_bus); } void spi_flash_init_device(const external_flash_device* device) { |
