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fix(sdmmc): Generalize waiting for card idle to a function

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This commit is contained in:
Adam Múdry
2024-10-31 00:46:48 +01:00
parent 2c1bec2c70
commit 9386b58e17
3 changed files with 66 additions and 45 deletions
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32
components/sdmmc/sdmmc_common.c
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@@ -16,6 +16,8 @@
*/
#include <inttypes.h>
#include "esp_log.h"
#include "esp_timer.h"
#include "sdmmc_common.h"
static const char* TAG = "sdmmc_common";
@@ -361,3 +363,33 @@ uint32_t sdmmc_get_erase_timeout_ms(const sdmmc_card_t* card, int arg, size_t er
return sdmmc_sd_get_erase_timeout_ms(card, arg, erase_size_kb);
}
}
esp_err_t sdmmc_wait_for_idle(sdmmc_card_t* card, uint32_t status)
{
assert(!host_is_spi(card));
esp_err_t err = ESP_OK;
size_t count = 0;
int64_t yield_delay_us = 100 * 1000; // initially 100ms
int64_t t0 = esp_timer_get_time();
int64_t t1 = 0;
/* SD mode: wait for the card to become idle based on R1 status */
while (!sdmmc_ready_for_data(status)) {
t1 = esp_timer_get_time();
if (t1 - t0 > SDMMC_READY_FOR_DATA_TIMEOUT_US) {
return ESP_ERR_TIMEOUT;
}
if (t1 - t0 > yield_delay_us) {
yield_delay_us *= 2;
vTaskDelay(1);
}
err = sdmmc_send_cmd_send_status(card, &status);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: sdmmc_send_cmd_send_status returned 0x%x", __func__, err);
return err;
}
if (++count % 16 == 0) {
ESP_LOGV(TAG, "waiting for card to become ready (%" PRIu32 ")", (uint32_t) count);
}
}
return err;
}