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drivers/sdcard_spi: convert to ztimer_usec

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This commit is contained in:
Francisco Molina 2021-11-18 13:40:38 +01:00
parent 8a4e7bf7fe
commit 74fc764a41
4 changed files with 26 additions and 24 deletions
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2
drivers/sdcard_spi/Kconfig
View File

@ -13,5 +13,5 @@ config MODULE_SDCARD_SPI
select MODULE_PERIPH_GPIO
select MODULE_PERIPH_SPI
select MODULE_PERIPH_SPI_RECONFIGURE if HAS_PERIPH_SPI_RECONFIGURE
select MODULE_XTIMER
select MODULE_CHECKSUM
select ZTIMER_USEC

3
drivers/sdcard_spi/Makefile.dep
View File

@ -2,4 +2,5 @@ FEATURES_REQUIRED += periph_gpio
FEATURES_REQUIRED += periph_spi
FEATURES_OPTIONAL += periph_spi_reconfigure
USEMODULE += checksum
USEMODULE += xtimer
USEMODULE += ztimer
USEMODULE += ztimer_usec

1
drivers/sdcard_spi/include/sdcard_spi_internal.h
View File

@ -32,6 +32,7 @@ extern "C" {
#include "periph/gpio.h"
#include "stdbool.h"
#include "sdcard_spi.h"
#include "timex.h"
/* number of clocks that should be applied to the card on init
before taking further actions (see sd spec. 6.4.1.1 Power Up Time of Card) */

44
drivers/sdcard_spi/sdcard_spi.c
View File

@ -25,7 +25,7 @@
#include "periph/spi.h"
#include "periph/gpio.h"
#include "checksum/ucrc16.h"
#include "xtimer.h"
#include "ztimer.h"
#include <stdio.h>
#include <string.h>
@ -116,7 +116,7 @@ static sd_init_fsm_state_t _init_sd_fsm_step(sdcard_spi_t *card, sd_init_fsm_sta
if (gpio_is_valid(card->params.power)) {
gpio_write(card->params.power, card->params.power_act_high);
xtimer_usleep(SD_CARD_WAIT_AFTER_POWER_UP_US);
ztimer_sleep(ZTIMER_USEC, SD_CARD_WAIT_AFTER_POWER_UP_US);
}
gpio_set(card->params.mosi);
@ -126,9 +126,9 @@ static sd_init_fsm_state_t _init_sd_fsm_step(sdcard_spi_t *card, sd_init_fsm_sta
* (same as sending dummy bytes with 0xFF) */
for (int i = 0; i < SD_POWERSEQUENCE_CLOCK_COUNT; i += 1) {
gpio_set(card->params.clk);
xtimer_usleep(SD_CARD_PREINIT_CLOCK_PERIOD_US / 2);
ztimer_sleep(ZTIMER_USEC, SD_CARD_PREINIT_CLOCK_PERIOD_US / 2);
gpio_clear(card->params.clk);
xtimer_usleep(SD_CARD_PREINIT_CLOCK_PERIOD_US / 2);
ztimer_sleep(ZTIMER_USEC, SD_CARD_PREINIT_CLOCK_PERIOD_US / 2);
}
return SD_INIT_SEND_CMD0;
@ -209,7 +209,7 @@ static sd_init_fsm_state_t _init_sd_fsm_step(sdcard_spi_t *card, sd_init_fsm_sta
case SD_INIT_SEND_ACMD41_HCS:
DEBUG("SD_INIT_SEND_ACMD41_HCS\n");
const uint32_t acmd41_hcs_retry_timeout = xtimer_now_usec() + INIT_CMD_RETRY_US;
const uint32_t acmd41_hcs_retry_timeout = ztimer_now(ZTIMER_USEC) + INIT_CMD_RETRY_US;
do {
uint8_t acmd41hcs_r1 = sdcard_spi_send_acmd(card, SD_CMD_41, SD_ACMD_41_ARG_HC, 0);
if (R1_VALID(acmd41hcs_r1) && !R1_ERROR(acmd41hcs_r1) &&
@ -218,13 +218,13 @@ static sd_init_fsm_state_t _init_sd_fsm_step(sdcard_spi_t *card, sd_init_fsm_sta
return SD_INIT_SEND_CMD58;
}
} while (((uint32_t)INIT_CMD_RETRY_US > 0) &&
(xtimer_now_usec() < acmd41_hcs_retry_timeout));
(ztimer_now(ZTIMER_USEC) < acmd41_hcs_retry_timeout));
_unselect_card_spi(card);
return SD_INIT_CARD_UNKNOWN;
case SD_INIT_SEND_ACMD41:
DEBUG("SD_INIT_SEND_ACMD41\n");
const uint32_t acmd41_retry_timeout = xtimer_now_usec() + INIT_CMD_RETRY_US;
const uint32_t acmd41_retry_timeout = ztimer_now(ZTIMER_USEC) + INIT_CMD_RETRY_US;
do {
uint8_t acmd41_r1 = sdcard_spi_send_acmd(card, SD_CMD_41, SD_CMD_NO_ARG, 0);
if (R1_VALID(acmd41_r1) && !R1_ERROR(acmd41_r1) && !R1_IDLE_BIT_SET(acmd41_r1)) {
@ -233,7 +233,7 @@ static sd_init_fsm_state_t _init_sd_fsm_step(sdcard_spi_t *card, sd_init_fsm_sta
card->card_type = SD_V1;
return SD_INIT_SEND_CMD16;
}
} while (((uint32_t)INIT_CMD_RETRY_US > 0) && (xtimer_now_usec() < acmd41_retry_timeout));
} while (((uint32_t)INIT_CMD_RETRY_US > 0) && (ztimer_now(ZTIMER_USEC) < acmd41_retry_timeout));
DEBUG("ACMD41: [ERROR]\n");
return SD_INIT_SEND_CMD1;
@ -346,7 +346,7 @@ static sd_init_fsm_state_t _init_sd_fsm_step(sdcard_spi_t *card, sd_init_fsm_sta
static inline bool _wait_for_token(sdcard_spi_t *card, uint8_t token, uint32_t retry_us)
{
const uint32_t retry_timeout = xtimer_now_usec() + retry_us;
const uint32_t retry_timeout = ztimer_now(ZTIMER_USEC) + retry_us;
do {
uint8_t read_byte = 0;
@ -360,7 +360,7 @@ static inline bool _wait_for_token(sdcard_spi_t *card, uint8_t token, uint32_t r
DEBUG("_wait_for_token: [NO MATCH] (0x%02x)\n", read_byte);
}
} while ((retry_us > 0) && (xtimer_now_usec() < retry_timeout));
} while ((retry_us > 0) && (ztimer_now(ZTIMER_USEC) < retry_timeout));
return false;
}
@ -379,7 +379,7 @@ static inline void _send_dummy_byte(sdcard_spi_t *card)
static inline bool _wait_for_not_busy(sdcard_spi_t *card, uint32_t retry_us)
{
const uint32_t retry_timeout = xtimer_now_usec() + retry_us;
const uint32_t retry_timeout = ztimer_now(ZTIMER_USEC) + retry_us;
do {
uint8_t read_byte;
@ -397,7 +397,7 @@ static inline bool _wait_for_not_busy(sdcard_spi_t *card, uint32_t retry_us)
return false;
}
} while ((retry_us > 0) && (xtimer_now_usec() < retry_timeout));
} while ((retry_us > 0) && (ztimer_now(ZTIMER_USEC) < retry_timeout));
DEBUG("_wait_for_not_busy: [FAILED]\n");
return false;
@ -423,7 +423,7 @@ static uint8_t _crc_7(const uint8_t *data, int n)
uint8_t sdcard_spi_send_cmd(sdcard_spi_t *card, uint8_t sd_cmd_idx, uint32_t argument,
uint32_t retry_us)
{
const uint32_t retry_timeout = xtimer_now_usec() + retry_us;
const uint32_t retry_timeout = ztimer_now(ZTIMER_USEC) + retry_us;
uint8_t r1_resu;
uint8_t cmd_data[6];
@ -440,7 +440,7 @@ uint8_t sdcard_spi_send_cmd(sdcard_spi_t *card, uint8_t sd_cmd_idx, uint32_t arg
do {
DEBUG(
"sdcard_spi_send_cmd: CMD%02d (0x%08" PRIx32 ") (remaining retry time %" PRIu32 " usec)\n", sd_cmd_idx, argument,
(retry_timeout > xtimer_now_usec()) ? (retry_timeout - xtimer_now_usec()) : 0);
(retry_timeout > ztimer_now(ZTIMER_USEC)) ? (retry_timeout - ztimer_now(ZTIMER_USEC)) : 0);
if (!_wait_for_not_busy(card, SD_WAIT_FOR_NOT_BUSY_US)) {
DEBUG("sdcard_spi_send_cmd: timeout while waiting for bus to be not busy!\n");
@ -475,7 +475,7 @@ uint8_t sdcard_spi_send_cmd(sdcard_spi_t *card, uint8_t sd_cmd_idx, uint32_t arg
r1_resu = SD_INVALID_R1_RESPONSE;
}
} while ((retry_us > 0) && (xtimer_now_usec() < retry_timeout));
} while ((retry_us > 0) && (ztimer_now(ZTIMER_USEC) < retry_timeout));
return r1_resu;
}
@ -483,14 +483,14 @@ uint8_t sdcard_spi_send_cmd(sdcard_spi_t *card, uint8_t sd_cmd_idx, uint32_t arg
uint8_t sdcard_spi_send_acmd(sdcard_spi_t *card, uint8_t sd_cmd_idx, uint32_t argument,
uint32_t retry_us)
{
const uint32_t retry_timeout = xtimer_now_usec() + retry_us;
const uint32_t retry_timeout = ztimer_now(ZTIMER_USEC) + retry_us;
uint8_t r1_resu;
do {
DEBUG(
"sdcard_spi_send_acmd: CMD%02d (0x%08" PRIx32 ") (remaining retry time %" PRIu32 " usec)\n", sd_cmd_idx, argument,
(retry_timeout > xtimer_now_usec()) ? (retry_timeout - xtimer_now_usec()) : 0);
(retry_timeout > ztimer_now(ZTIMER_USEC)) ? (retry_timeout - ztimer_now(ZTIMER_USEC)) : 0);
r1_resu = sdcard_spi_send_cmd(card, SD_CMD_55, SD_CMD_NO_ARG, 0);
if (R1_VALID(r1_resu) && !R1_ERROR(r1_resu)) {
r1_resu = sdcard_spi_send_cmd(card, sd_cmd_idx, argument, 0);
@ -506,7 +506,7 @@ uint8_t sdcard_spi_send_acmd(sdcard_spi_t *card, uint8_t sd_cmd_idx, uint32_t ar
DEBUG("CMD55: [ERROR / NO RESPONSE]\n");
}
} while ((retry_us > 0) && (xtimer_now_usec() < retry_timeout));
} while ((retry_us > 0) && (ztimer_now(ZTIMER_USEC) < retry_timeout));
DEBUG("sdcard_spi_send_acmd: [TIMEOUT]\n");
return r1_resu;
@ -514,7 +514,7 @@ uint8_t sdcard_spi_send_acmd(sdcard_spi_t *card, uint8_t sd_cmd_idx, uint32_t ar
static inline uint8_t _wait_for_r1(sdcard_spi_t *card, uint32_t retry_us)
{
const uint32_t retry_timeout = xtimer_now_usec() + retry_us;
const uint32_t retry_timeout = ztimer_now(ZTIMER_USEC) + retry_us;
uint8_t r1;
@ -532,7 +532,7 @@ static inline uint8_t _wait_for_r1(sdcard_spi_t *card, uint32_t retry_us)
return r1;
}
} while ((retry_us > 0) && (xtimer_now_usec() < retry_timeout));
} while ((retry_us > 0) && (ztimer_now(ZTIMER_USEC) < retry_timeout));
DEBUG("_wait_for_r1: [TIMEOUT]\n");
return r1;
@ -563,10 +563,10 @@ static inline int _sw_spi_rxtx_byte(sdcard_spi_t *card, uint8_t out, uint8_t *in
else {
gpio_clear(card->params.mosi);
}
xtimer_usleep(SD_CARD_PREINIT_CLOCK_PERIOD_US / 2);
ztimer_sleep(ZTIMER_USEC, SD_CARD_PREINIT_CLOCK_PERIOD_US / 2);
gpio_set(card->params.clk);
rx = (rx | ((gpio_read(card->params.miso) > 0) << i));
xtimer_usleep(SD_CARD_PREINIT_CLOCK_PERIOD_US / 2);
ztimer_sleep(ZTIMER_USEC, SD_CARD_PREINIT_CLOCK_PERIOD_US / 2);
gpio_clear(card->params.clk);
}
*in = rx;