Common SD/MMC stack.
Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
#include <asf.h>
#include <string.h>
#include "conf_board.h"
#include "board.h"
#include "conf_sd_mmc.h"
#include "sd_mmc_protocol.h"
#include "sd_mmc.h"
#include "delay.h"
#include "sd_mmc_spi.h"
Data Structures | |
struct | sd_mmc_card |
SD/MMC card information structure. More... | |
Enumerations | |
enum | card_state { SD_MMC_CARD_STATE_READY = 0, SD_MMC_CARD_STATE_DEBOUNCE = 1, SD_MMC_CARD_STATE_INIT = 2, SD_MMC_CARD_STATE_UNUSABLE = 3, SD_MMC_CARD_STATE_NO_CARD = 4 } |
SD/MMC card states. More... | |
Functions | |
sd_mmc_err_t | sd_mmc_check (uint8_t slot) |
Performs a card checks. More... | |
uint32_t | sd_mmc_get_capacity (uint8_t slot) |
Get the memory capacity. More... | |
card_type_t | sd_mmc_get_type (uint8_t slot) |
Get the card type. More... | |
card_version_t | sd_mmc_get_version (uint8_t slot) |
Get the card version. More... | |
void | sd_mmc_init (void) |
Initialize the SD/MMC stack and low level driver required. More... | |
sd_mmc_err_t | sd_mmc_init_read_blocks (uint8_t slot, uint32_t start, uint16_t nb_block) |
Initialize the read blocks of data from the card. More... | |
sd_mmc_err_t | sd_mmc_init_write_blocks (uint8_t slot, uint32_t start, uint16_t nb_block) |
Initialize the write blocks of data. More... | |
bool | sd_mmc_is_write_protected (uint8_t slot) |
Get the card write protection status. More... | |
uint8_t | sd_mmc_nb_slot (void) |
Return the number of slot available. More... | |
sd_mmc_err_t | sd_mmc_start_read_blocks (void *dest, uint16_t nb_block) |
Start the read blocks of data from the card. More... | |
sd_mmc_err_t | sd_mmc_start_write_blocks (const void *src, uint16_t nb_block) |
Start the write blocks of data. More... | |
sd_mmc_err_t | sd_mmc_wait_end_of_read_blocks (bool abort) |
Wait the end of read blocks of data from the card. More... | |
sd_mmc_err_t | sd_mmc_wait_end_of_write_blocks (bool abort) |
Wait the end of write blocks of data. More... | |
MMC, SD and SDIO commands process | |
static bool | mmc_spi_op_cond (void) |
Sends operation condition command and read OCR (SPI only) More... | |
static bool | mmc_mci_op_cond (void) |
Sends operation condition command and read OCR (MCI only) More... | |
static bool | sd_spi_op_cond (uint8_t v2) |
Ask to all cards to send their operations conditions (SPI only). More... | |
static bool | sd_mci_op_cond (uint8_t v2) |
Ask to all cards to send their operations conditions (MCI only). More... | |
static bool | sdio_op_cond (void) |
static bool | sdio_get_max_speed (void) |
static bool | sdio_cmd52_set_bus_width (void) |
static bool | sdio_cmd52_set_high_speed (void) |
static bool | sd_cm6_set_high_speed (void) |
CMD6 for SD - Switch card in high speed mode. More... | |
static bool | mmc_cmd6_set_bus_width (uint8_t bus_width) |
CMD6 for MMC - Switches the bus width mode. More... | |
static bool | mmc_cmd6_set_high_speed (void) |
CMD6 for MMC - Switches in high speed mode. More... | |
static bool | sd_cmd8 (uint8_t *v2) |
CMD8 for SD card - Send Interface Condition Command. More... | |
static bool | mmc_cmd8 (uint8_t *b_authorize_high_speed) |
CMD8 - The card sends its EXT_CSD register as a block of data. More... | |
static bool | sd_mmc_cmd9_spi (void) |
CMD9: Addressed card sends its card-specific data (CSD) on the CMD line spi. More... | |
static bool | sd_mmc_cmd9_mci (void) |
CMD9: Addressed card sends its card-specific data (CSD) on the CMD line mci. More... | |
static void | mmc_decode_csd (void) |
Decodes MMC CSD register. More... | |
static void | sd_decode_csd (void) |
Decodes SD CSD register. More... | |
static bool | sd_mmc_cmd13 (void) |
CMD13 - Addressed card sends its status register. More... | |
static bool | sd_acmd6 (void) |
ACMD6 - Define the data bus width to 4 bits bus. More... | |
static bool | sd_acmd51 (void) |
ACMD51 - Read the SD Configuration Register. More... | |
Internal function to process the initialization and install | |
static sd_mmc_err_t | sd_mmc_select_slot (uint8_t slot) |
Select a card slot and initialize the associated driver. More... | |
static void | sd_mmc_configure_slot (void) |
Configures the driver with the selected card configuration. More... | |
static void | sd_mmc_deselect_slot (void) |
Deselect the current card slot. More... | |
static bool | sd_mmc_spi_card_init (void) |
Initialize the SD card in SPI mode. More... | |
static bool | sd_mmc_mci_card_init (void) |
Initialize the SD card in MCI mode. More... | |
static bool | sd_mmc_spi_install_mmc (void) |
Initialize the MMC card in SPI mode. More... | |
static bool | sd_mmc_mci_install_mmc (void) |
Initialize the MMC card in MCI mode. More... | |
Variables | |
const uint32_t | mmc_trans_multipliers [16] |
MMC transfer multiplier factor codes (1/10) list. More... | |
static struct sd_mmc_card * | sd_mmc_card |
Pointer on current slot configurated. More... | |
static struct sd_mmc_card | sd_mmc_cards [SD_MMC_MEM_CNT] |
SD/MMC card list Note: Initialize card detect pin fields if present. More... | |
static uint16_t | sd_mmc_nb_block_remaining = 0 |
Number of block remaining to read or write on the current transfer. More... | |
static uint16_t | sd_mmc_nb_block_to_tranfer = 0 |
Number of block to read or write on the current transfer. More... | |
static uint8_t | sd_mmc_slot_sel |
Index of current slot configurated. More... | |
const uint32_t | sd_mmc_trans_units [7] |
SD/MMC transfer rate unit codes (10K) list. More... | |
const uint32_t | sd_trans_multipliers [16] |
SD transfer multiplier factor codes (1/10) list. More... | |
#define SD_MMC_CD | ( | slot, | |
unused | |||
) | {.cd_gpio = SD_MMC_##slot##_CD_GPIO}, |