Qubot/retro-go
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rg_storage: Added RG_STORAGE_SDSPI_HOLD_CS (#190)

Browse Source
This commit is contained in:
Alex Duchesne 2025-07-26 21:27:46 -04:00
parent fb43d4d7f9
commit 6678345598
1 changed files with 26 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
components/retro-go/rg_storage.c
View File

@ -72,21 +72,6 @@ void rg_storage_init(void)
RG_LOGI("Looking for SD Card using SDSPI...");
sdmmc_host_t host_config = SDSPI_HOST_DEFAULT();
host_config.slot = RG_STORAGE_SDSPI_HOST;
host_config.max_freq_khz = RG_STORAGE_SDSPI_SPEED;
host_config.do_transaction = &sdcard_do_transaction;
sdspi_device_config_t slot_config = SDSPI_DEVICE_CONFIG_DEFAULT();
slot_config.host_id = RG_STORAGE_SDSPI_HOST;
slot_config.gpio_cs = RG_GPIO_SDSPI_CS;
esp_vfs_fat_mount_config_t mount_config = {
.format_if_mount_failed = false,
.max_files = 4,
.allocation_unit_size = 0,
};
spi_bus_config_t bus_cfg = {
.mosi_io_num = RG_GPIO_SDSPI_MOSI,
.miso_io_num = RG_GPIO_SDSPI_MISO,
@ -99,6 +84,32 @@ void rg_storage_init(void)
if (err != ESP_OK) // check but do not abort, let esp_vfs_fat_sdspi_mount decide
RG_LOGW("SPI bus init failed (0x%x)", err);
sdmmc_host_t host_config = SDSPI_HOST_DEFAULT();
host_config.slot = RG_STORAGE_SDSPI_HOST;
host_config.max_freq_khz = RG_STORAGE_SDSPI_SPEED;
host_config.do_transaction = &sdcard_do_transaction;
sdspi_device_config_t slot_config = SDSPI_DEVICE_CONFIG_DEFAULT();
slot_config.host_id = RG_STORAGE_SDSPI_HOST;
slot_config.gpio_cs = RG_GPIO_SDSPI_CS;
// If we're using esp-idf >= 5.0 and the SPI bus is not shared, we must keep the SD card selected
// to work around slow accesses. (https://github.com/espressif/esp-idf/issues/10493)
#ifdef RG_STORAGE_SDSPI_HOLD_CS /* ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0) */
if (RG_STORAGE_SDSPI_HOST != RG_SCREEN_HOST && RG_GPIO_SDSPI_CS != GPIO_NUM_NC)
{
gpio_set_direction(RG_GPIO_SDSPI_CS, GPIO_MODE_OUTPUT);
gpio_set_level(RG_GPIO_SDSPI_CS, 0);
slot_config.gpio_cs = GPIO_NUM_NC;
}
#endif
esp_vfs_fat_mount_config_t mount_config = {
.format_if_mount_failed = false,
.max_files = 4,
.allocation_unit_size = 0,
};
err = esp_vfs_fat_sdspi_mount(RG_STORAGE_ROOT, &host_config, &slot_config, &mount_config, &card_handle);
if (err == ESP_ERR_TIMEOUT || err == ESP_ERR_INVALID_RESPONSE || err == ESP_ERR_INVALID_CRC)
{