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Merge branch 'feature/sdmmc_highspeed_mode' into 'master'

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SDMMC: add support for high-speed mode

See merge request !1108
This commit is contained in:
Ivan Grokhotkov 2017-08-22 19:31:10 +08:00
parent 0532d37373 14c96838bf
commit 4f4808445f
5 changed files with 292 additions and 49 deletions
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64
components/driver/include/driver/sdmmc_defs.h
View file

@ -294,23 +294,67 @@
#define SCR_CMD_SUPPORT_CMD20(scr) MMC_RSP_BITS((scr), 32, 1)
#define SCR_RESERVED2(scr) MMC_RSP_BITS((scr), 0, 32)
/* Status of Switch Function */
#define SFUNC_STATUS_GROUP(status, group) \
(__bitfield((uint32_t *)(status), 400 + (group - 1) * 16, 16))
/* Max supply current in SWITCH_FUNC response (in mA) */
#define SD_SFUNC_I_MAX(status) (MMC_RSP_BITS((uint32_t *)(status), 496, 16))
#define SD_ACCESS_MODE_SDR12 0
#define SD_ACCESS_MODE_SDR25 1
#define SD_ACCESS_MODE_SDR50 2
#define SD_ACCESS_MODE_SDR104 3
#define SD_ACCESS_MODE_DDR50 4
/* Supported flags in SWITCH_FUNC response */
#define SD_SFUNC_SUPPORTED(status, group) \
(MMC_RSP_BITS((uint32_t *)(status), 400 + (group - 1) * 16, 16))
/* Selected function in SWITCH_FUNC response */
#define SD_SFUNC_SELECTED(status, group) \
(MMC_RSP_BITS((uint32_t *)(status), 376 + (group - 1) * 4, 4))
/* Busy flags in SWITCH_FUNC response */
#define SD_SFUNC_BUSY(status, group) \
(MMC_RSP_BITS((uint32_t *)(status), 272 + (group - 1) * 16, 16))
/* Version of SWITCH_FUNC response */
#define SD_SFUNC_VER(status) (MMC_RSP_BITS((uint32_t *)(status), 368, 8))
#define SD_SFUNC_GROUP_MAX 6
#define SD_SFUNC_FUNC_MAX 15
#define SD_ACCESS_MODE 1 /* Function group 1, Access Mode */
#define SD_ACCESS_MODE_SDR12 0 /* 25 MHz clock */
#define SD_ACCESS_MODE_SDR25 1 /* 50 MHz clock */
#define SD_ACCESS_MODE_SDR50 2 /* UHS-I, 100 MHz clock */
#define SD_ACCESS_MODE_SDR104 3 /* UHS-I, 208 MHz clock */
#define SD_ACCESS_MODE_DDR50 4 /* UHS-I, 50 MHz clock, DDR */
/**
* @brief Extract up to 32 sequential bits from an array of 32-bit words
*
* Bits within the word are numbered in the increasing order from LSB to MSB.
*
* As an example, consider 2 32-bit words:
*
* 0x01234567 0x89abcdef
*
* On a little-endian system, the bytes are stored in memory as follows:
*
* 67 45 23 01 ef cd ab 89
*
* MMC_RSP_BITS will extact bits as follows:
*
* start=0 len=4 -> result=0x00000007
* start=0 len=12 -> result=0x00000567
* start=28 len=8 -> result=0x000000f0
* start=59 len=5 -> result=0x00000011
*
* @param src array of words to extract bits from
* @param start index of the first bit to extract
* @param len number of bits to extract, 1 to 32
* @return 32-bit word where requested bits start from LSB
*/
static inline uint32_t MMC_RSP_BITS(uint32_t *src, int start, int len)
{
uint32_t mask = (len % 32 == 0) ? UINT_MAX : UINT_MAX >> (32 - (len % 32));
size_t word = 3 - start / 32;
size_t word = start / 32;
size_t shift = start % 32;
uint32_t right = src[word] >> shift;
uint32_t left = (len + shift <= 32) ? 0 : src[word - 1] << ((32 - shift) % 32);
uint32_t left = (len + shift <= 32) ? 0 : src[word + 1] << ((32 - shift) % 32);
return (left | right) & mask;
}

7
components/driver/include/driver/sdmmc_types.h
View file

@ -60,6 +60,13 @@ typedef struct {
*/
typedef uint32_t sdmmc_response_t[4];
/**
* SD SWITCH_FUNC response buffer
*/
typedef struct {
uint32_t data[512 / 8 / sizeof(uint32_t)]; /*!< response data */
} sdmmc_switch_func_rsp_t;
/**
* SD/MMC command information
*/

12
components/driver/sdmmc_transaction.c
View file

@ -73,6 +73,7 @@ const uint32_t SDMMC_CMD_ERR_MASK =
static sdmmc_desc_t s_dma_desc[SDMMC_DMA_DESC_CNT];
static sdmmc_transfer_state_t s_cur_transfer = { 0 };
static QueueHandle_t s_request_mutex;
static bool s_is_app_cmd; // This flag is set if the next command is an APP command
static esp_err_t handle_idle_state_events();
static sdmmc_hw_cmd_t make_hw_cmd(sdmmc_command_t* cmd);
@ -88,6 +89,7 @@ esp_err_t sdmmc_host_transaction_handler_init()
if (!s_request_mutex) {
return ESP_ERR_NO_MEM;
}
s_is_app_cmd = false;
return ESP_OK;
}
@ -145,6 +147,7 @@ esp_err_t sdmmc_host_do_transaction(int slot, sdmmc_command_t* cmdinfo)
break;
}
}
s_is_app_cmd = (ret == ESP_OK && cmdinfo->opcode == MMC_APP_CMD);
xSemaphoreGive(s_request_mutex);
return ret;
}
@ -228,7 +231,7 @@ static sdmmc_hw_cmd_t make_hw_cmd(sdmmc_command_t* cmd)
} else {
res.wait_complete = 1;
}
if (cmd->opcode == SD_APP_SET_BUS_WIDTH) {
if (s_is_app_cmd && cmd->opcode == SD_APP_SET_BUS_WIDTH) {
res.send_auto_stop = 1;
res.data_expected = 1;
}
@ -261,11 +264,8 @@ static void process_command_response(uint32_t status, sdmmc_command_t* cmd)
{
if (cmd->flags & SCF_RSP_PRESENT) {
if (cmd->flags & SCF_RSP_136) {
cmd->response[3] = SDMMC.resp[0];
cmd->response[2] = SDMMC.resp[1];
cmd->response[1] = SDMMC.resp[2];
cmd->response[0] = SDMMC.resp[3];
/* Destination is 4-byte aligned, can memcopy from peripheral registers */
memcpy(cmd->response, (uint32_t*) SDMMC.resp, 4 * sizeof(uint32_t));
} else {
cmd->response[0] = SDMMC.resp[0];
cmd->response[1] = 0;

249
components/sdmmc/sdmmc_cmd.c
View file

@ -41,9 +41,13 @@ static esp_err_t sdmmc_decode_cid(sdmmc_response_t resp, sdmmc_cid_t* out_cid);
static esp_err_t sddmc_send_cmd_all_send_cid(sdmmc_card_t* card, sdmmc_cid_t* out_cid);
static esp_err_t sdmmc_send_cmd_set_relative_addr(sdmmc_card_t* card, uint16_t* out_rca);
static esp_err_t sdmmc_send_cmd_set_blocklen(sdmmc_card_t* card, sdmmc_csd_t* csd);
static esp_err_t sdmmc_send_cmd_switch_func(sdmmc_card_t* card,
uint32_t mode, uint32_t group, uint32_t function,
sdmmc_switch_func_rsp_t* resp);
static esp_err_t sdmmc_enable_hs_mode(sdmmc_card_t* card);
static esp_err_t sdmmc_decode_csd(sdmmc_response_t response, sdmmc_csd_t* out_csd);
static esp_err_t sdmmc_send_cmd_send_csd(sdmmc_card_t* card, sdmmc_csd_t* out_csd);
static esp_err_t sdmmc_send_cmd_select_card(sdmmc_card_t* card);
static esp_err_t sdmmc_send_cmd_select_card(sdmmc_card_t* card, uint32_t rca);
static esp_err_t sdmmc_decode_scr(uint32_t *raw_scr, sdmmc_scr_t* out_scr);
static esp_err_t sdmmc_send_cmd_send_scr(sdmmc_card_t* card, sdmmc_scr_t *out_scr);
static esp_err_t sdmmc_send_cmd_set_bus_width(sdmmc_card_t* card, int width);
@ -51,7 +55,7 @@ static esp_err_t sdmmc_send_cmd_stop_transmission(sdmmc_card_t* card, uint32_t*
static esp_err_t sdmmc_send_cmd_send_status(sdmmc_card_t* card, uint32_t* out_status);
static esp_err_t sdmmc_send_cmd_crc_on_off(sdmmc_card_t* card, bool crc_enable);
static uint32_t get_host_ocr(float voltage);
static void response_ntoh(sdmmc_response_t response);
static void flip_byte_order(uint32_t* response, size_t size);
static esp_err_t sdmmc_write_sectors_dma(sdmmc_card_t* card, const void* src,
size_t start_block, size_t block_count);
static esp_err_t sdmmc_read_sectors_dma(sdmmc_card_t* card, void* dst,
@ -126,12 +130,15 @@ esp_err_t sdmmc_card_init(const sdmmc_host_t* config, sdmmc_card_t* card)
}
}
ESP_LOGD(TAG, "host_ocr=0x%x card_ocr=0x%x", host_ocr, card->ocr);
/* Clear all voltage bits in host's OCR which the card doesn't support.
* Don't touch CCS bit because in SPI mode cards don't report CCS in ACMD41
* response.
*/
host_ocr &= (card->ocr | (~SD_OCR_VOL_MASK));
ESP_LOGD(TAG, "sdmmc_card_init: host_ocr=%08x, card_ocr=%08x", host_ocr, card->ocr);
/* Read and decode the contents of CID register */
if (!is_spi) {
err = sddmc_send_cmd_all_send_cid(card, &card->cid);
if (err != ESP_OK) {
@ -151,9 +158,10 @@ esp_err_t sdmmc_card_init(const sdmmc_host_t* config, sdmmc_card_t* card)
}
}
/* Get and decode the contents of CSD register. Determine card capacity. */
err = sdmmc_send_cmd_send_csd(card, &card->csd);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: send_csd returned 0x%x", __func__, err);
ESP_LOGE(TAG, "%s: send_csd (1) returned 0x%x", __func__, err);
return err;
}
const size_t max_sdsc_capacity = UINT32_MAX / card->csd.sector_size + 1;
@ -163,13 +171,23 @@ esp_err_t sdmmc_card_init(const sdmmc_host_t* config, sdmmc_card_t* card)
__func__, card->csd.capacity, max_sdsc_capacity);
card->csd.capacity = max_sdsc_capacity;
}
/* Switch the card from stand-by mode to data transfer mode (not needed if
* SPI interface is used). This is needed to issue SET_BLOCKLEN and
* SEND_SCR commands.
*/
if (!is_spi) {
err = sdmmc_send_cmd_select_card(card);
err = sdmmc_send_cmd_select_card(card, card->rca);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: select_card returned 0x%x", __func__, err);
return err;
}
}
/* SDSC cards support configurable data block lengths.
* We don't use this feature and set the block length to 512 bytes,
* same as the block length for SDHC cards.
*/
if ((card->ocr & SD_OCR_SDHC_CAP) == 0) {
err = sdmmc_send_cmd_set_blocklen(card, &card->csd);
if (err != ESP_OK) {
@ -177,11 +195,21 @@ esp_err_t sdmmc_card_init(const sdmmc_host_t* config, sdmmc_card_t* card)
return err;
}
}
/* Get the contents of SCR register: bus width and the version of SD spec
* supported by the card.
* In SD mode, this is the first command which uses D0 line. Errors at
* this step usually indicate connection issue or lack of pull-up resistor.
*/
err = sdmmc_send_cmd_send_scr(card, &card->scr);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: send_scr returned 0x%x", __func__, err);
ESP_LOGE(TAG, "%s: send_scr (1) returned 0x%x", __func__, err);
return err;
}
/* If the host has been initialized with 4-bit bus support, and the card
* supports 4-bit bus, switch to 4-bit bus now.
*/
if ((config->flags & SDMMC_HOST_FLAG_4BIT) &&
(card->scr.bus_width & SCR_SD_BUS_WIDTHS_4BIT)) {
ESP_LOGD(TAG, "switching to 4-bit bus mode");
@ -202,6 +230,8 @@ esp_err_t sdmmc_card_init(const sdmmc_host_t* config, sdmmc_card_t* card)
return err;
}
}
/* Wait for the card to be ready for data transfers */
uint32_t status = 0;
while (!host_is_spi(card) && !(status & MMC_R1_READY_FOR_DATA)) {
// TODO: add some timeout here
@ -214,32 +244,87 @@ esp_err_t sdmmc_card_init(const sdmmc_host_t* config, sdmmc_card_t* card)
ESP_LOGV(TAG, "waiting for card to become ready (%d)", count);
}
}
if (config->max_freq_khz >= SDMMC_FREQ_HIGHSPEED &&
card->csd.tr_speed / 1000 >= SDMMC_FREQ_HIGHSPEED) {
ESP_LOGD(TAG, "switching to HS bus mode");
err = (*config->set_card_clk)(config->slot, SDMMC_FREQ_HIGHSPEED);
if (err != ESP_OK) {
ESP_LOGE(TAG, "failed to switch peripheral to HS bus mode");
/* So far initialization has been done using 400kHz clock. Determine the
* clock rate which both host and the card support, and switch to it.
*/
bool freq_switched = false;
if (config->max_freq_khz >= SDMMC_FREQ_HIGHSPEED) {
/* This will determine if the card supports SWITCH_FUNC command,
* and high speed mode. If the cards supports both, this will enable
* high speed mode at the card side.
*/
err = sdmmc_enable_hs_mode(card);
if (err == ESP_ERR_NOT_SUPPORTED) {
ESP_LOGD(TAG, "%s: host supports HS mode, but card doesn't", __func__);
} else if (err != ESP_OK) {
/* some other error */
return err;
} else { /* ESP_OK */
/* HS mode has been enabled on the card.
* Read CSD again, it should now indicate that the card supports
* 50MHz clock.
* Since SEND_CSD is allowed only in standby mode, and the card is
* currently in data transfer more, deselect the card first, then
* get the CSD, then select the card again.
*/
err = sdmmc_send_cmd_select_card(card, 0);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: select_card (2) returned 0x%x", __func__, err);
return err;
}
err = sdmmc_send_cmd_send_csd(card, &card->csd);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: send_csd (2) returned 0x%x", __func__, err);
return err;
}
err = sdmmc_send_cmd_select_card(card, card->rca);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: select_card (3) returned 0x%x", __func__, err);
return err;
}
if (card->csd.tr_speed != 50000000) {
ESP_LOGW(TAG, "unexpected: after enabling HS mode, tr_speed=%d", card->csd.tr_speed);
} else {
/* Finally can switch the host to HS mode */
err = (*config->set_card_clk)(config->slot, SDMMC_FREQ_HIGHSPEED);
if (err != ESP_OK) {
ESP_LOGE(TAG, "failed to switch peripheral to HS bus mode");
return err;
}
freq_switched = true;
}
}
} else if (config->max_freq_khz >= SDMMC_FREQ_DEFAULT &&
card->csd.tr_speed / 1000 >= SDMMC_FREQ_DEFAULT) {
}
/* All SD cards must support default speed mode (25MHz).
* config->max_freq_khz may be used to limit the clock frequency.
*/
if (!freq_switched &&
config->max_freq_khz >= SDMMC_FREQ_DEFAULT) {
ESP_LOGD(TAG, "switching to DS bus mode");
err = (*config->set_card_clk)(config->slot, SDMMC_FREQ_DEFAULT);
if (err != ESP_OK) {
ESP_LOGE(TAG, "failed to switch peripheral to HS bus mode");
return err;
}
freq_switched = true;
}
sdmmc_scr_t scr_tmp;
err = sdmmc_send_cmd_send_scr(card, &scr_tmp);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: send_scr returned 0x%x", __func__, err);
return err;
}
if (memcmp(&card->scr, &scr_tmp, sizeof(scr_tmp)) != 0) {
ESP_LOGE(TAG, "got corrupted data after increasing clock frequency");
return ESP_ERR_INVALID_RESPONSE;
/* If frequency switch has been performed, read SCR register one more time
* and compare the result with the previous one. Use this simple check as
* an indicator of potential signal integrity issues.
*/
if (freq_switched) {
sdmmc_scr_t scr_tmp;
err = sdmmc_send_cmd_send_scr(card, &scr_tmp);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: send_scr (2) returned 0x%x", __func__, err);
return err;
}
if (memcmp(&card->scr, &scr_tmp, sizeof(scr_tmp)) != 0) {
ESP_LOGE(TAG, "got corrupted data after increasing clock frequency");
return ESP_ERR_INVALID_RESPONSE;
}
}
return ESP_OK;
}
@ -419,7 +504,7 @@ static esp_err_t sdmmc_send_cmd_send_cid(sdmmc_card_t *card, sdmmc_cid_t *out_ci
if (err != ESP_OK) {
return err;
}
response_ntoh(buf);
flip_byte_order(buf, sizeof(buf));
return sdmmc_decode_cid(buf, out_cid);
}
@ -501,18 +586,22 @@ static esp_err_t sdmmc_send_cmd_send_csd(sdmmc_card_t* card, sdmmc_csd_t* out_cs
if (err != ESP_OK) {
return err;
}
uint32_t* ptr = cmd.response;
if (is_spi) {
response_ntoh(spi_buf);
flip_byte_order(spi_buf, sizeof(spi_buf));
ptr = spi_buf;
}
return sdmmc_decode_csd(is_spi ? spi_buf : cmd.response, out_csd);
return sdmmc_decode_csd(ptr, out_csd);
}
static esp_err_t sdmmc_send_cmd_select_card(sdmmc_card_t* card)
static esp_err_t sdmmc_send_cmd_select_card(sdmmc_card_t* card, uint32_t rca)
{
/* Don't expect to see a response when de-selecting a card */
uint32_t response = (rca == 0) ? 0 : SCF_RSP_R1;
sdmmc_command_t cmd = {
.opcode = MMC_SELECT_CARD,
.arg = MMC_ARG_RCA(card->rca),
.flags = SCF_CMD_AC | SCF_RSP_R1
.arg = MMC_ARG_RCA(rca),
.flags = SCF_CMD_AC | response
};
return sdmmc_send_cmd(card, &cmd);
}
@ -520,8 +609,8 @@ static esp_err_t sdmmc_send_cmd_select_card(sdmmc_card_t* card)
static esp_err_t sdmmc_decode_scr(uint32_t *raw_scr, sdmmc_scr_t* out_scr)
{
sdmmc_response_t resp = {0xabababab, 0xabababab, 0x12345678, 0x09abcdef};
resp[2] = __builtin_bswap32(raw_scr[0]);
resp[3] = __builtin_bswap32(raw_scr[1]);
resp[1] = __builtin_bswap32(raw_scr[0]);
resp[0] = __builtin_bswap32(raw_scr[1]);
int ver = SCR_STRUCTURE(resp);
if (ver != 0) {
return ESP_ERR_NOT_SUPPORTED;
@ -597,10 +686,15 @@ static uint32_t get_host_ocr(float voltage)
return SD_OCR_VOL_MASK;
}
static void response_ntoh(sdmmc_response_t response)
static void flip_byte_order(uint32_t* response, size_t size)
{
for (int i = 0; i < 4; ++i) {
response[i] = __builtin_bswap32(response[i]);
assert(size % (2 * sizeof(uint32_t)) == 0);
const size_t n_words = size / sizeof(uint32_t);
for (int i = 0; i < n_words / 2; ++i) {
uint32_t left = __builtin_bswap32(response[i]);
uint32_t right = __builtin_bswap32(response[n_words - i - 1]);
response[i] = right;
response[n_words - i - 1] = left;
}
}
@ -768,3 +862,92 @@ static esp_err_t sdmmc_read_sectors_dma(sdmmc_card_t* card, void* dst,
}
return ESP_OK;
}
static esp_err_t sdmmc_send_cmd_switch_func(sdmmc_card_t* card,
uint32_t mode, uint32_t group, uint32_t function,
sdmmc_switch_func_rsp_t* resp)
{
if (card->scr.sd_spec < SCR_SD_SPEC_VER_1_10 ||
((card->csd.card_command_class & SD_CSD_CCC_SWITCH) == 0)) {
return ESP_ERR_NOT_SUPPORTED;
}
if (group == 0 ||
group > SD_SFUNC_GROUP_MAX ||
function > SD_SFUNC_FUNC_MAX) {
return ESP_ERR_INVALID_ARG;
}
if (mode > 1) {
return ESP_ERR_INVALID_ARG;
}
uint32_t group_shift = (group - 1) << 2;
/* all functions which should not be affected are set to 0xf (no change) */
uint32_t other_func_mask = (0x00ffffff & ~(0xf << group_shift));
uint32_t func_val = (function << group_shift) | other_func_mask;
sdmmc_command_t cmd = {
.opcode = MMC_SWITCH,
.flags = SCF_CMD_ADTC | SCF_CMD_READ | SCF_RSP_R1,
.blklen = sizeof(sdmmc_switch_func_rsp_t),
.data = resp->data,
.datalen = sizeof(sdmmc_switch_func_rsp_t),
.arg = (!!mode << 31) | func_val
};
esp_err_t err = sdmmc_send_cmd(card, &cmd);
if (err != ESP_OK) {
ESP_LOGE(TAG, "%s: sdmmc_send_cmd returned 0x%x", __func__, err);
return err;
}
flip_byte_order(resp->data, sizeof(sdmmc_switch_func_rsp_t));
uint32_t resp_ver = SD_SFUNC_VER(resp->data);
if (resp_ver == 0) {
/* busy response is never sent */
} else if (resp_ver == 1) {
if (SD_SFUNC_BUSY(resp->data, group) & (1 << function)) {
ESP_LOGD(TAG, "%s: response indicates function %d:%d is busy",
__func__, group, function);
return ESP_ERR_INVALID_STATE;
}
} else {
ESP_LOGD(TAG, "%s: got an invalid version of SWITCH_FUNC response: 0x%02x",
__func__, resp_ver);
return ESP_ERR_INVALID_RESPONSE;
}
return ESP_OK;
}
static esp_err_t sdmmc_enable_hs_mode(sdmmc_card_t* card)
{
if (card->scr.sd_spec < SCR_SD_SPEC_VER_1_10 ||
((card->csd.card_command_class & SD_CSD_CCC_SWITCH) == 0)) {
return ESP_ERR_NOT_SUPPORTED;
}
sdmmc_switch_func_rsp_t* response = (sdmmc_switch_func_rsp_t*)
heap_caps_malloc(sizeof(*response), MALLOC_CAP_DMA);
if (response == NULL) {
return ESP_ERR_NO_MEM;
}
esp_err_t err = sdmmc_send_cmd_switch_func(card, 0, SD_ACCESS_MODE, 0, response);
if (err != ESP_OK) {
ESP_LOGD(TAG, "%s: sdmmc_send_cmd_switch_func (1) returned 0x%x", __func__, err);
goto out;
}
uint32_t supported_mask = SD_SFUNC_SUPPORTED(response->data, 1);
if ((supported_mask & BIT(SD_ACCESS_MODE_SDR25)) == 0) {
err = ESP_ERR_NOT_SUPPORTED;
goto out;
}
err = sdmmc_send_cmd_switch_func(card, 1, SD_ACCESS_MODE, SD_ACCESS_MODE_SDR25, response);
if (err != ESP_OK) {
ESP_LOGD(TAG, "%s: sdmmc_send_cmd_switch_func (2) returned 0x%x", __func__, err);
goto out;
}
out:
free(response);
return err;
}

9
components/sdmmc/test/test_sd.c
View file

@ -26,6 +26,15 @@
#include <time.h>
#include <sys/time.h>
TEST_CASE("MMC_RSP_BITS", "[sd]")
{
uint32_t data[2] = { 0x01234567, 0x89abcdef };
TEST_ASSERT_EQUAL_HEX32(0x7, MMC_RSP_BITS(data, 0, 4));
TEST_ASSERT_EQUAL_HEX32(0x567, MMC_RSP_BITS(data, 0, 12));
TEST_ASSERT_EQUAL_HEX32(0xf0, MMC_RSP_BITS(data, 28, 8));
TEST_ASSERT_EQUAL_HEX32(0x3, MMC_RSP_BITS(data, 1, 3));
TEST_ASSERT_EQUAL_HEX32(0x11, MMC_RSP_BITS(data, 59, 5));
}
TEST_CASE("can probe SD", "[sd][ignore]")
{