alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

sdspi: Allow CS line to be set to GPIO_NUM_NC (-1)

Browse Source 
Closes https://github.com/espressif/esp-idf/issues/7852
This commit is contained in:
Adam Múdry 2022-08-07 17:45:23 +02:00 committed by BOT
parent c25c254666
commit afe78ba0aa
2 changed files with 24 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
components/driver/include/driver/sdspi_host.h
View File

@ -63,6 +63,7 @@ typedef struct {
gpio_num_t gpio_int; ///< GPIO number of interrupt line (input) for SDIO card.
} sdspi_device_config_t;
#define SDSPI_SLOT_NO_CS GPIO_NUM_NC ///< indicates that card select line is not used
#define SDSPI_SLOT_NO_CD GPIO_NUM_NC ///< indicates that card detect line is not used
#define SDSPI_SLOT_NO_WP GPIO_NUM_NC ///< indicates that write protect line is not used
#define SDSPI_SLOT_NO_INT GPIO_NUM_NC ///< indicates that interrupt line is not used

33
components/driver/sdspi_host.c
View File

@ -43,7 +43,7 @@
typedef struct {
spi_host_device_t host_id; //!< SPI host id.
spi_device_handle_t spi_handle; //!< SPI device handle, used for transactions
uint8_t gpio_cs; //!< CS GPIO
uint8_t gpio_cs; //!< CS GPIO, or GPIO_UNUSED
uint8_t gpio_cd; //!< Card detect GPIO, or GPIO_UNUSED
uint8_t gpio_wp; //!< Write protect GPIO, or GPIO_UNUSED
uint8_t gpio_int; //!< Write protect GPIO, or GPIO_UNUSED
@ -120,13 +120,17 @@ static slot_info_t* remove_slot_info(sdspi_dev_handle_t handle)
/// Set CS high for given slot
static void cs_high(slot_info_t *slot)
{
gpio_set_level(slot->gpio_cs, 1);
if (slot->gpio_cs != GPIO_UNUSED) {
gpio_set_level(slot->gpio_cs, 1);
}
}
/// Set CS low for given slot
static void cs_low(slot_info_t *slot)
{
gpio_set_level(slot->gpio_cs, 0);
if (slot->gpio_cs != GPIO_UNUSED) {
gpio_set_level(slot->gpio_cs, 0);
}
}
/// Return true if WP pin is configured and is low
@ -248,7 +252,9 @@ static esp_err_t deinit_slot(slot_info_t *slot)
.mode = GPIO_MODE_INPUT,
.intr_type = GPIO_INTR_DISABLE,
};
gpio_config(&config);
if (pin_bit_mask != 0) {
gpio_config(&config);
}
if (slot->semphr_int) {
vSemaphoreDelete(slot->semphr_int);
@ -332,13 +338,20 @@ esp_err_t sdspi_host_init_device(const sdspi_device_config_t* slot_config, sdspi
.mode = GPIO_MODE_OUTPUT,
.pin_bit_mask = 1ULL << slot_config->gpio_cs,
};
ret = gpio_config(&io_conf);
if (ret != ESP_OK) {
ESP_LOGD(TAG, "gpio_config (CS) failed with rc=0x%x", ret);
goto cleanup;
if (slot_config->gpio_cs != SDSPI_SLOT_NO_CS) {
slot->gpio_cs = slot_config->gpio_cs;
} else {
slot->gpio_cs = GPIO_UNUSED;
}
if (slot->gpio_cs != GPIO_UNUSED) {
ret = gpio_config(&io_conf);
if (ret != ESP_OK) {
ESP_LOGD(TAG, "gpio_config (CS) failed with rc=0x%x", ret);
goto cleanup;
}
cs_high(slot);
}
cs_high(slot);
// Configure CD and WP pins
io_conf = (gpio_config_t) {