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esp_flash: fix issue that cannot add flash on SPI1 CS1 when SPI_FLASH_SHARE_SPI1_BUS is disabled

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This commit is contained in:
Michael (XIAO Xufeng) 2020-05-12 02:34:53 +08:00
parent bef57a8ddc
commit dae3196157
3 changed files with 40 additions and 7 deletions
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8
components/spi_flash/esp_flash_spi_init.c
View File

@ -145,7 +145,7 @@ esp_err_t spi_bus_add_flash_device(esp_flash_t **out_chip, const esp_flash_spi_d
goto fail;
}
int dev_id;
int dev_id = -1;
esp_err_t err = esp_flash_init_os_functions(chip, config->host_id, &dev_id);
if (err == ESP_ERR_NOT_SUPPORTED) {
ESP_LOGE(TAG, "Init os functions failed! No free CS.");
@ -156,6 +156,12 @@ esp_err_t spi_bus_add_flash_device(esp_flash_t **out_chip, const esp_flash_spi_d
ret = err;
goto fail;
}
// When `CONFIG_SPI_FLASH_SHARE_SPI1_BUS` is not enabled on SPI1 bus, the
// `esp_flash_init_os_functions` will not be able to assign a new device ID. In this case, we
// use the `cs_id` in the config structure.
if (dev_id == -1 && config->host_id == SPI_HOST) {
dev_id = config->cs_id;
}
assert(dev_id < SOC_SPI_PERIPH_CS_NUM(config->host_id) && dev_id >= 0);
bool use_iomux = spicommon_bus_using_iomux(config->host_id);

8
components/spi_flash/include/esp_flash_spi_init.h
View File

@ -28,8 +28,12 @@ typedef struct {
esp_flash_io_mode_t io_mode; ///< IO mode to read from the Flash
esp_flash_speed_t speed; ///< Speed of the Flash clock
int input_delay_ns; ///< Input delay of the data pins, in ns. Set to 0 if unknown.
int cs_id; ///< @deprecated CS pin (signal) to use
/**
* CS line ID, ignored when not `host_id` is not SPI1_HOST, or
* `CONFIG_SPI_FLASH_SHARE_SPI1_BUS` is enabled. In this case, the CS line used is
* automatically assigned by the SPI bus lock.
*/
int cs_id;
} esp_flash_spi_device_config_t;
/**

29
components/spi_flash/spi_flash_os_func_app.c
View File

@ -127,14 +127,30 @@ static const esp_flash_os_functions_t esp_flash_spi23_default_os_functions = {
.delay_ms = delay_ms,
};
esp_err_t esp_flash_init_os_functions(esp_flash_t *chip, int host_id, int* out_dev_id)
static spi_bus_lock_dev_handle_t register_dev(int host_id)
{
spi_bus_lock_handle_t lock = spi_bus_lock_get_by_id(host_id);
spi_bus_lock_dev_handle_t dev_handle;
spi_bus_lock_dev_config_t config = {.flags = SPI_BUS_LOCK_DEV_FLAG_CS_REQUIRED};
esp_err_t err = spi_bus_lock_register_dev(lock, &config, &dev_handle);
if (err != ESP_OK) {
return err;
return NULL;
}
return dev_handle;
}
esp_err_t esp_flash_init_os_functions(esp_flash_t *chip, int host_id, int* out_dev_id)
{
spi_bus_lock_dev_handle_t dev_handle = NULL;
// Skip initializing the bus lock when the bus is SPI1 and the bus is not shared with SPI Master
// driver, leaving dev_handle = NULL
bool skip_register_dev = (host_id == SPI_HOST);
#if CONFIG_SPI_FLASH_SHARE_SPI1_BUS
skip_register_dev = false;
#endif
if (!skip_register_dev) {
dev_handle = register_dev(host_id);
}
if (host_id == SPI1_HOST) {
@ -166,7 +182,10 @@ esp_err_t esp_flash_init_os_functions(esp_flash_t *chip, int host_id, int* out_d
return ESP_ERR_INVALID_ARG;
}
// Bus lock not initialized, the device ID should be directly given by application.
if (dev_handle) {
*out_dev_id = spi_bus_lock_get_dev_id(dev_handle);
}
return ESP_OK;
}
@ -174,7 +193,11 @@ esp_err_t esp_flash_init_os_functions(esp_flash_t *chip, int host_id, int* out_d
esp_err_t esp_flash_deinit_os_functions(esp_flash_t* chip)
{
if (chip->os_func_data) {
spi_bus_lock_unregister_dev(((app_func_arg_t*)chip->os_func_data)->dev_lock);
spi_bus_lock_dev_handle_t dev_lock = ((app_func_arg_t*)chip->os_func_data)->dev_lock;
// SPI bus lock is possible not used on SPI1 bus
if (dev_lock) {
spi_bus_lock_unregister_dev(dev_lock);
}
free(chip->os_func_data);
}
chip->os_func = NULL;