955 lines
36 KiB
C++
955 lines
36 KiB
C++
/*
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* Authors (alphabetical order)
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* - Andre Bernet <bernet.andre@gmail.com>
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* - Andreas Weitl
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* - Bertrand Songis <bsongis@gmail.com>
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* - Bryan J. Rentoul (Gruvin) <gruvin@gmail.com>
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* - Cameron Weeks <th9xer@gmail.com>
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* - Erez Raviv
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* - Gabriel Birkus
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* - Jean-Pierre Parisy
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* - Karl Szmutny
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* - Michael Blandford
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* - Michal Hlavinka
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* - Pat Mackenzie
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* - Philip Moss
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* - Rob Thomson
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* - Romolo Manfredini <romolo.manfredini@gmail.com>
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* - Thomas Husterer
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*
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* open9x is based on code named
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* gruvin9x by Bryan J. Rentoul: http://code.google.com/p/gruvin9x/,
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* er9x by Erez Raviv: http://code.google.com/p/er9x/,
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* and the original (and ongoing) project by
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* Thomas Husterer, th9x: http://code.google.com/p/th9x/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <string.h>
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#include "../FatFs/diskio.h"
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#include "../FatFs/ff.h"
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#include "../CoOS/kernel/CoOS.h"
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/* Definitions for MMC/SDC command */
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#define CMD0 (0x40+0) /* GO_IDLE_STATE */
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#define CMD1 (0x40+1) /* SEND_OP_COND (MMC) */
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#define ACMD41 (0xC0+41) /* SEND_OP_COND (SDC) */
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#define CMD8 (0x40+8) /* SEND_IF_COND */
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#define CMD9 (0x40+9) /* SEND_CSD */
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#define CMD10 (0x40+10) /* SEND_CID */
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#define CMD12 (0x40+12) /* STOP_TRANSMISSION */
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#define ACMD13 (0xC0+13) /* SD_STATUS (SDC) */
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#define CMD16 (0x40+16) /* SET_BLOCKLEN */
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#define CMD17 (0x40+17) /* READ_SINGLE_BLOCK */
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#define CMD18 (0x40+18) /* READ_MULTIPLE_BLOCK */
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#define CMD23 (0x40+23) /* SET_BLOCK_COUNT (MMC) */
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#define ACMD23 (0xC0+23) /* SET_WR_BLK_ERASE_COUNT (SDC) */
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#define CMD24 (0x40+24) /* WRITE_BLOCK */
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#define CMD25 (0x40+25) /* WRITE_MULTIPLE_BLOCK */
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#define CMD55 (0x40+55) /* APP_CMD */
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#define CMD58 (0x40+58) /* READ_OCR */
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/* Card-Select Controls (Platform dependent) */
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#define SELECT() GPIO_ResetBits(GPIO_SPI_SD, GPIO_Pin_SPI_SD_CS) /* MMC CS = L */
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#define DESELECT() GPIO_SetBits(GPIO_SPI_SD, GPIO_Pin_SPI_SD_CS) /* MMC CS = H */
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#if (_MAX_SS != 512) || (_FS_READONLY == 0) || (STM32_SD_DISK_IOCTRL_FORCE == 1)
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#define STM32_SD_DISK_IOCTRL 1
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#else
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#define STM32_SD_DISK_IOCTRL 0
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#endif
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#define BOOL bool
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#define FALSE false
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#define TRUE true
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/* Card type flags (CardType) */
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#define CT_MMC 0x01
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#define CT_SD1 0x02
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#define CT_SD2 0x04
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#define CT_SDC (CT_SD1|CT_SD2)
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#define CT_BLOCK 0x08
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/*uint32_t Card_ID[4] ;
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uint32_t Card_SCR[2] ;
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uint32_t Card_CSD[4] ;
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int32_t Card_state; // = SD_ST_STARTUP ;
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volatile uint32_t Card_initialized = 0;
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uint32_t Sd_rca ;
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uint32_t Cmd_A41_resp ;
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uint8_t cardType;
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uint32_t transSpeed; */
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/*-----------------------------------------------------------------------*/
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/* Lock / unlock functions */
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/*-----------------------------------------------------------------------*/
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int ff_cre_syncobj (BYTE vol, _SYNC_t *mutex)
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{
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*mutex = CoCreateMutex();
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return 1;
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}
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int ff_req_grant (_SYNC_t mutex)
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{
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CoEnterMutexSection(mutex);
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return 1;
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}
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void ff_rel_grant (_SYNC_t mutex)
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{
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CoLeaveMutexSection(mutex);
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}
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int ff_del_syncobj (_SYNC_t mutex)
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{
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return 1;
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}
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static const DWORD socket_state_mask_cp = (1 << 0);
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static const DWORD socket_state_mask_wp = (1 << 1);
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static volatile
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DSTATUS Stat = STA_NOINIT; /* Disk status */
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static volatile
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DWORD Timer1, Timer2; /* 100Hz decrement timers */
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static
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BYTE CardType; /* Card type flags */
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enum speed_setting { INTERFACE_SLOW, INTERFACE_FAST };
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static void interface_speed( enum speed_setting speed )
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{
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DWORD tmp;
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tmp = SPI_SD->CR1;
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if ( speed == INTERFACE_SLOW ) {
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/* Set slow clock (100k-400k) */
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tmp = ( tmp | SPI_BaudRatePrescaler_128 );
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} else {
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/* Set fast clock (depends on the CSD) */
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tmp = ( tmp & ~SPI_BaudRatePrescaler_128 ) | SPI_BaudRatePrescaler_SPI_SD;
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}
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SPI_SD->CR1 = tmp;
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}
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static void socket_wp_init(void)
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{
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return;
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}
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static inline DWORD socket_is_write_protected(void)
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{
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return 0; /* fake not protected */
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}
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static void socket_cp_init(void)
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{
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return;
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}
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static inline DWORD socket_is_empty(void)
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{
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return 0; /* fake inserted */
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}
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static void card_power(BYTE on)
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{
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on=on;
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}
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#if (STM32_SD_DISK_IOCTRL == 1)
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static int chk_power(void)
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{
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return 1; /* fake powered */
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}
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#endif
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/*-----------------------------------------------------------------------*/
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/* Transmit/Receive a byte to MMC via SPI (Platform dependent) */
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/*-----------------------------------------------------------------------*/
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static BYTE stm32_spi_rw( BYTE out )
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{
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/* Loop while DR register in not empty */
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/// not needed: while (SPI_I2S_GetFlagStatus(SPI_SD, SPI_I2S_FLAG_TXE) == RESET) { ; }
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/* Send byte through the SPI peripheral */
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SPI_I2S_SendData(SPI_SD, out);
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/* Wait to receive a byte */
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while (SPI_I2S_GetFlagStatus(SPI_SD, SPI_I2S_FLAG_RXNE) == RESET) { ; }
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/* Return the byte read from the SPI bus */
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return SPI_I2S_ReceiveData(SPI_SD);
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}
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/*-----------------------------------------------------------------------*/
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/* Transmit a byte to MMC via SPI (Platform dependent) */
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/*-----------------------------------------------------------------------*/
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#define xmit_spi(dat) stm32_spi_rw(dat)
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/*-----------------------------------------------------------------------*/
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/* Receive a byte from MMC via SPI (Platform dependent) */
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/*-----------------------------------------------------------------------*/
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static
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BYTE rcvr_spi (void)
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{
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return stm32_spi_rw(0xff);
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}
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/* Alternative macro to receive data fast */
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#define rcvr_spi_m(dst) *(dst)=stm32_spi_rw(0xff)
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/*-----------------------------------------------------------------------*/
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/* Wait for card ready */
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/*-----------------------------------------------------------------------*/
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static
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BYTE wait_ready (void)
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{
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BYTE res;
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Timer2 = 50; /* Wait for ready in timeout of 500ms */
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rcvr_spi();
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do
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res = rcvr_spi();
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while ((res != 0xFF) && Timer2);
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return res;
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}
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/*-----------------------------------------------------------------------*/
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/* Deselect the card and release SPI bus */
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/*-----------------------------------------------------------------------*/
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static
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void release_spi (void)
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{
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DESELECT();
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rcvr_spi();
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}
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#ifdef STM32_SD_USE_DMA
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/*-----------------------------------------------------------------------*/
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/* Transmit/Receive Block using DMA (Platform dependent. STM32 here) */
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/*-----------------------------------------------------------------------*/
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static
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void stm32_dma_transfer(
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BOOL receive, /* FALSE for buff->SPI, TRUE for SPI->buff */
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const BYTE *buff, /* receive TRUE : 512 byte data block to be transmitted
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receive FALSE : Data buffer to store received data */
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UINT btr /* receive TRUE : Byte count (must be multiple of 2)
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receive FALSE : Byte count (must be 512) */
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)
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{
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DMA_InitTypeDef DMA_InitStructure;
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WORD rw_workbyte[] = { 0xffff };
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/* shared DMA configuration values */
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DMA_InitStructure.DMA_PeripheralBaseAddr = (DWORD)(&(SPI_SD->DR));
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DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
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DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
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DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
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DMA_InitStructure.DMA_BufferSize = btr;
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DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
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DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
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DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
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DMA_DeInit(DMA_Channel_SPI_SD_RX);
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DMA_DeInit(DMA_Channel_SPI_SD_TX);
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if ( receive ) {
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/* DMA1 channel2 configuration SPI1 RX ---------------------------------------------*/
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/* DMA1 channel4 configuration SPI2 RX ---------------------------------------------*/
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DMA_InitStructure.DMA_MemoryBaseAddr = (DWORD)buff;
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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DMA_Init(DMA_Channel_SPI_SD_RX, &DMA_InitStructure);
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/* DMA1 channel3 configuration SPI1 TX ---------------------------------------------*/
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/* DMA1 channel5 configuration SPI2 TX ---------------------------------------------*/
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DMA_InitStructure.DMA_MemoryBaseAddr = (DWORD)rw_workbyte;
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
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DMA_Init(DMA_Channel_SPI_SD_TX, &DMA_InitStructure);
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} else {
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#if _FS_READONLY == 0
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/* DMA1 channel2 configuration SPI1 RX ---------------------------------------------*/
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/* DMA1 channel4 configuration SPI2 RX ---------------------------------------------*/
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DMA_InitStructure.DMA_MemoryBaseAddr = (DWORD)rw_workbyte;
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
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DMA_Init(DMA_Channel_SPI_SD_RX, &DMA_InitStructure);
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/* DMA1 channel3 configuration SPI1 TX ---------------------------------------------*/
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/* DMA1 channel5 configuration SPI2 TX ---------------------------------------------*/
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DMA_InitStructure.DMA_MemoryBaseAddr = (DWORD)buff;
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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DMA_Init(DMA_Channel_SPI_SD_TX, &DMA_InitStructure);
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#endif
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}
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/* Enable DMA RX Channel */
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DMA_Cmd(DMA_Channel_SPI_SD_RX, ENABLE);
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/* Enable DMA TX Channel */
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DMA_Cmd(DMA_Channel_SPI_SD_TX, ENABLE);
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/* Enable SPI TX/RX request */
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SPI_I2S_DMACmd(SPI_SD, SPI_I2S_DMAReq_Rx | SPI_I2S_DMAReq_Tx, ENABLE);
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/* Wait until DMA1_Channel 3 Transfer Complete */
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/// not needed: while (DMA_GetFlagStatus(DMA_FLAG_SPI_SD_TC_TX) == RESET) { ; }
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/* Wait until DMA1_Channel 2 Receive Complete */
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while (DMA_GetFlagStatus(DMA_FLAG_SPI_SD_TC_RX) == RESET) { ; }
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// same w/o function-call:
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// while ( ( ( DMA1->ISR ) & DMA_FLAG_SPI_SD_TC_RX ) == RESET ) { ; }
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/* Disable DMA RX Channel */
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DMA_Cmd(DMA_Channel_SPI_SD_RX, DISABLE);
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/* Disable DMA TX Channel */
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DMA_Cmd(DMA_Channel_SPI_SD_TX, DISABLE);
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/* Disable SPI RX/TX request */
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SPI_I2S_DMACmd(SPI_SD, SPI_I2S_DMAReq_Rx | SPI_I2S_DMAReq_Tx, DISABLE);
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}
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#endif /* STM32_SD_USE_DMA */
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/*-----------------------------------------------------------------------*/
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/* Power Control and interface-initialization (Platform dependent) */
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/*-----------------------------------------------------------------------*/
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static
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void power_on (void)
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{
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SPI_InitTypeDef SPI_InitStructure;
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GPIO_InitTypeDef GPIO_InitStructure;
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/* Enable GPIO clock for CS */
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIO_CS, ENABLE);
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/* Enable SPI clock, SPI1: APB2, SPI2: APB1 */
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RCC_APBPeriphClockCmd_SPI_SD(RCC_APBPeriph_SPI_SD, ENABLE);
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GPIO_PinAFConfig(GPIO_SPI_SD,GPIO_PinSource_SCK ,GPIO_AF_SD);
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GPIO_PinAFConfig(GPIO_SPI_SD,GPIO_PinSource_MISO,GPIO_AF_SD);
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GPIO_PinAFConfig(GPIO_SPI_SD,GPIO_PinSource_MOSI,GPIO_AF_SD);
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card_power(1);
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socket_cp_init();//Empty return
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socket_wp_init();//Empty return.
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CoTickDelay(125);
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// for (Timer1 = 25; Timer1; ); /* Wait for 250ms */
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/* SPI configuration */
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SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
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SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
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SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
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SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
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SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
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SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
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SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_SPI_SD; //
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SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
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SPI_InitStructure.SPI_CRCPolynomial = 7;
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SPI_Init(SPI_SD, &SPI_InitStructure);
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SPI_CalculateCRC(SPI_SD, DISABLE);
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SPI_Cmd(SPI_SD, ENABLE);
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/* De-select the Card: Chip Select high */
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DESELECT();
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/* Configure I/O for Flash Chip select */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_SPI_SD_CS;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIO_SPI_SD, &GPIO_InitStructure);
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/* Configure SPI pins: SCK MISO and MOSI with alternate function push-down */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_SPI_SD_SCK | GPIO_Pin_SPI_SD_MOSI | GPIO_Pin_SPI_SD_MISO;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
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GPIO_Init(GPIO_SPI_SD, &GPIO_InitStructure);
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#ifdef STM32_SD_USE_DMA
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/* enable DMA clock */
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RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
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#endif
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}
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static
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void power_off (void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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if (!(Stat & STA_NOINIT)) {
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SELECT();
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wait_ready();
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release_spi();
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}
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SPI_I2S_DeInit(SPI_SD);
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SPI_Cmd(SPI_SD, DISABLE);
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RCC_APBPeriphClockCmd_SPI_SD(RCC_APBPeriph_SPI_SD, DISABLE);
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//All SPI-Pins to input with weak internal pull-downs //
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_SPI_SD_SCK | GPIO_Pin_SPI_SD_MISO | GPIO_Pin_SPI_SD_MOSI;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
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GPIO_Init(GPIO_SPI_SD, &GPIO_InitStructure);
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card_power(0);
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Stat |= STA_NOINIT; /* Set STA_NOINIT */
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}
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/*-----------------------------------------------------------------------*/
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/* Receive a data packet from MMC */
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/*-----------------------------------------------------------------------*/
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static
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BOOL rcvr_datablock (
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BYTE *buff, /* Data buffer to store received data */
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UINT btr /* Byte count (must be multiple of 4) */
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)
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{
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BYTE token;
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Timer1 = 10;
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do { /* Wait for data packet in timeout of 100ms */
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token = rcvr_spi();
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} while ((token == 0xFF) && Timer1);
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if(token != 0xFE) return FALSE; /* If not valid data token, return with error */
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#ifdef STM32_SD_USE_DMA
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stm32_dma_transfer( TRUE, buff, btr );
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#else
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do { /* Receive the data block into buffer */
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rcvr_spi_m(buff++);
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rcvr_spi_m(buff++);
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rcvr_spi_m(buff++);
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rcvr_spi_m(buff++);
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} while (btr -= 4);
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#endif /* STM32_SD_USE_DMA */
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rcvr_spi(); /* Discard CRC */
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rcvr_spi();
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return TRUE; /* Return with success */
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}
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/*-----------------------------------------------------------------------*/
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/* Send a data packet to MMC */
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/*-----------------------------------------------------------------------*/
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#if _FS_READONLY == 0
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static
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BOOL xmit_datablock (
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const BYTE *buff, /* 512 byte data block to be transmitted */
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BYTE token /* Data/Stop token */
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)
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{
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BYTE resp;
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#ifndef STM32_SD_USE_DMA
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BYTE wc;
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#endif
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if (wait_ready() != 0xFF) return FALSE;
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xmit_spi(token); /* transmit data token */
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if (token != 0xFD) { /* Is data token */
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#ifdef STM32_SD_USE_DMA
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stm32_dma_transfer( FALSE, buff, 512 );
|
|
#else
|
|
wc = 0;
|
|
do { /* transmit the 512 byte data block to MMC */
|
|
xmit_spi(*buff++);
|
|
xmit_spi(*buff++);
|
|
} while (--wc);
|
|
#endif /* STM32_SD_USE_DMA */
|
|
|
|
xmit_spi(0xFF); /* CRC (Dummy) */
|
|
xmit_spi(0xFF);
|
|
resp = rcvr_spi(); /* Receive data response */
|
|
if ((resp & 0x1F) != 0x05) /* If not accepted, return with error */
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
#endif /* _READONLY */
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Send a command packet to MMC */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
static
|
|
BYTE send_cmd (
|
|
BYTE cmd, /* Command byte */
|
|
DWORD arg /* Argument */
|
|
)
|
|
{
|
|
BYTE n, res;
|
|
|
|
|
|
if (cmd & 0x80) { /* ACMD<n> is the command sequence of CMD55-CMD<n> */
|
|
cmd &= 0x7F;
|
|
res = send_cmd(CMD55, 0);
|
|
if (res > 1) return res;
|
|
}
|
|
|
|
/* Select the card and wait for ready */
|
|
SELECT();
|
|
if (wait_ready() != 0xFF) {
|
|
return 0xFF;
|
|
}
|
|
|
|
/* Send command packet */
|
|
xmit_spi(cmd); /* Start + Command index */
|
|
xmit_spi((BYTE)(arg >> 24)); /* Argument[31..24] */
|
|
xmit_spi((BYTE)(arg >> 16)); /* Argument[23..16] */
|
|
xmit_spi((BYTE)(arg >> 8)); /* Argument[15..8] */
|
|
xmit_spi((BYTE)arg); /* Argument[7..0] */
|
|
n = 0x01; /* Dummy CRC + Stop */
|
|
if (cmd == CMD0) n = 0x95; /* Valid CRC for CMD0(0) */
|
|
if (cmd == CMD8) n = 0x87; /* Valid CRC for CMD8(0x1AA) */
|
|
xmit_spi(n);
|
|
|
|
/* Receive command response */
|
|
if (cmd == CMD12) rcvr_spi(); /* Skip a stuff byte when stop reading */
|
|
|
|
n = 10; /* Wait for a valid response in timeout of 10 attempts */
|
|
do
|
|
res = rcvr_spi();
|
|
while ((res & 0x80) && --n);
|
|
|
|
return res; /* Return with the response value */
|
|
}
|
|
|
|
|
|
|
|
/*--------------------------------------------------------------------------
|
|
|
|
Public Functions
|
|
|
|
---------------------------------------------------------------------------*/
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Initialize Disk Drive */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DSTATUS disk_initialize (
|
|
BYTE drv /* Physical drive number (0) */
|
|
)
|
|
{
|
|
BYTE n, cmd, ty, ocr[4];
|
|
|
|
if (drv) return STA_NOINIT; /* Supports only single drive */
|
|
if (Stat & STA_NODISK) return Stat; /* No card in the socket */
|
|
|
|
power_on(); /* Force socket power on and initialize interface */
|
|
interface_speed(INTERFACE_SLOW);
|
|
for (n = 10; n; n--) rcvr_spi(); /* 80 dummy clocks */
|
|
|
|
ty = 0;
|
|
if (send_cmd(CMD0, 0) == 1) { /* Enter Idle state */
|
|
Timer1 = 100; /* Initialization timeout of 1000 milliseconds */
|
|
if (send_cmd(CMD8, 0x1AA) == 1) { /* SDHC */
|
|
for (n = 0; n < 4; n++) ocr[n] = rcvr_spi(); /* Get trailing return value of R7 response */
|
|
if (ocr[2] == 0x01 && ocr[3] == 0xAA) { /* The card can work at VDD range of 2.7-3.6V */
|
|
while (Timer1 && send_cmd(ACMD41, 1UL << 30)); /* Wait for leaving idle state (ACMD41 with HCS bit) */
|
|
if (Timer1 && send_cmd(CMD58, 0) == 0) { /* Check CCS bit in the OCR */
|
|
for (n = 0; n < 4; n++) ocr[n] = rcvr_spi();
|
|
ty = (ocr[0] & 0x40) ? CT_SD2 | CT_BLOCK : CT_SD2;
|
|
}
|
|
}
|
|
} else { /* SDSC or MMC */
|
|
if (send_cmd(ACMD41, 0) <= 1) {
|
|
ty = CT_SD1; cmd = ACMD41; /* SDSC */
|
|
} else {
|
|
ty = CT_MMC; cmd = CMD1; /* MMC */
|
|
}
|
|
while (Timer1 && send_cmd(cmd, 0)); /* Wait for leaving idle state */
|
|
if (!Timer1 || send_cmd(CMD16, 512) != 0) /* Set R/W block length to 512 */
|
|
ty = 0;
|
|
}
|
|
}
|
|
CardType = ty;
|
|
release_spi();
|
|
|
|
if (ty) { /* Initialization succeeded */
|
|
Stat &= ~STA_NOINIT; /* Clear STA_NOINIT */
|
|
interface_speed(INTERFACE_FAST);
|
|
} else { /* Initialization failed */
|
|
power_off();
|
|
}
|
|
|
|
return Stat;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Get Disk Status */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DSTATUS disk_status (
|
|
BYTE drv /* Physical drive number (0) */
|
|
)
|
|
{
|
|
if (drv) return STA_NOINIT; /* Supports only single drive */
|
|
return Stat;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Read Sector(s) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
extern "C" {
|
|
// TODO quick & dirty
|
|
int8_t SD_ReadSectors(uint8_t *buff, uint32_t sector, uint32_t count)
|
|
{
|
|
if (!(CardType & CT_BLOCK)) sector *= 512; /* Convert to byte address if needed */
|
|
|
|
if (send_cmd(CMD18, sector) == 0) { /* READ_MULTIPLE_BLOCK */
|
|
do {
|
|
if (!rcvr_datablock(buff, 512)) {
|
|
break;
|
|
}
|
|
buff += 512;
|
|
} while (--count);
|
|
send_cmd(CMD12, 0); /* STOP_TRANSMISSION */
|
|
}
|
|
|
|
release_spi();
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
DRESULT disk_read (
|
|
BYTE drv, /* Physical drive number (0) */
|
|
BYTE *buff, /* Pointer to the data buffer to store read data */
|
|
DWORD sector, /* Start sector number (LBA) */
|
|
BYTE count /* Sector count (1..255) */
|
|
)
|
|
{
|
|
if (drv || !count) return RES_PARERR;
|
|
if (Stat & STA_NOINIT) return RES_NOTRDY;
|
|
|
|
if (!(CardType & CT_BLOCK)) sector *= 512; /* Convert to byte address if needed */
|
|
|
|
if (count == 1) { /* Single block read */
|
|
if (send_cmd(CMD17, sector) == 0) { /* READ_SINGLE_BLOCK */
|
|
if (rcvr_datablock(buff, 512)) {
|
|
count = 0;
|
|
}
|
|
}
|
|
}
|
|
else { /* Multiple block read */
|
|
if (send_cmd(CMD18, sector) == 0) { /* READ_MULTIPLE_BLOCK */
|
|
do {
|
|
if (!rcvr_datablock(buff, 512)) {
|
|
break;
|
|
}
|
|
buff += 512;
|
|
} while (--count);
|
|
send_cmd(CMD12, 0); /* STOP_TRANSMISSION */
|
|
}
|
|
}
|
|
release_spi();
|
|
|
|
return count ? RES_ERROR : RES_OK;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Write Sector(s) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
#if _FS_READONLY == 0
|
|
|
|
extern "C" {
|
|
// TODO quick & dirty
|
|
int8_t SD_WriteSectors(uint8_t *buff, uint32_t sector, uint32_t count)
|
|
{
|
|
if (!(CardType & CT_BLOCK)) sector *= 512; /* Convert to byte address if needed */
|
|
if (CardType & CT_SDC) send_cmd(ACMD23, count);
|
|
if (send_cmd(CMD25, sector) == 0) { /* WRITE_MULTIPLE_BLOCK */
|
|
do {
|
|
if (!xmit_datablock(buff, 0xFC)) break;
|
|
buff += 512;
|
|
} while (--count);
|
|
if (!xmit_datablock(0, 0xFD)) /* STOP_TRAN token */
|
|
count = 1;
|
|
}
|
|
|
|
release_spi();
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
DRESULT disk_write (
|
|
BYTE drv, /* Physical drive number (0) */
|
|
const BYTE *buff, /* Pointer to the data to be written */
|
|
DWORD sector, /* Start sector number (LBA) */
|
|
BYTE count /* Sector count (1..255) */
|
|
)
|
|
{
|
|
if (drv || !count) return RES_PARERR;
|
|
if (Stat & STA_NOINIT) return RES_NOTRDY;
|
|
if (Stat & STA_PROTECT) return RES_WRPRT;
|
|
|
|
if (!(CardType & CT_BLOCK)) sector *= 512; /* Convert to byte address if needed */
|
|
|
|
if (count == 1) { /* Single block write */
|
|
if ((send_cmd(CMD24, sector) == 0) /* WRITE_BLOCK */
|
|
&& xmit_datablock(buff, 0xFE))
|
|
count = 0;
|
|
}
|
|
else { /* Multiple block write */
|
|
if (CardType & CT_SDC) send_cmd(ACMD23, count);
|
|
if (send_cmd(CMD25, sector) == 0) { /* WRITE_MULTIPLE_BLOCK */
|
|
do {
|
|
if (!xmit_datablock(buff, 0xFC)) break;
|
|
buff += 512;
|
|
} while (--count);
|
|
if (!xmit_datablock(0, 0xFD)) /* STOP_TRAN token */
|
|
count = 1;
|
|
}
|
|
}
|
|
release_spi();
|
|
|
|
return count ? RES_ERROR : RES_OK;
|
|
}
|
|
#endif /* _READONLY == 0 */
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Miscellaneous Functions */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
#if (STM32_SD_DISK_IOCTRL == 1)
|
|
DRESULT disk_ioctl (
|
|
BYTE drv, /* Physical drive number (0) */
|
|
BYTE ctrl, /* Control code */
|
|
void *buff /* Buffer to send/receive control data */
|
|
)
|
|
{
|
|
DRESULT res;
|
|
BYTE n, csd[16], *ptr = (BYTE *)buff;
|
|
WORD csize;
|
|
|
|
if (drv) return RES_PARERR;
|
|
|
|
res = RES_ERROR;
|
|
|
|
if (ctrl == CTRL_POWER) {
|
|
switch (*ptr) {
|
|
case 0: /* Sub control code == 0 (POWER_OFF) */
|
|
if (chk_power())
|
|
power_off(); /* Power off */
|
|
res = RES_OK;
|
|
break;
|
|
case 1: /* Sub control code == 1 (POWER_ON) */
|
|
power_on(); /* Power on */
|
|
res = RES_OK;
|
|
break;
|
|
case 2: /* Sub control code == 2 (POWER_GET) */
|
|
*(ptr+1) = (BYTE)chk_power();
|
|
res = RES_OK;
|
|
break;
|
|
default :
|
|
res = RES_PARERR;
|
|
}
|
|
}
|
|
else {
|
|
if (Stat & STA_NOINIT) return RES_NOTRDY;
|
|
|
|
switch (ctrl) {
|
|
case CTRL_SYNC : /* Make sure that no pending write process */
|
|
SELECT();
|
|
if (wait_ready() == 0xFF)
|
|
res = RES_OK;
|
|
break;
|
|
|
|
case GET_SECTOR_COUNT : /* Get number of sectors on the disk (DWORD) */
|
|
if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) {
|
|
if ((csd[0] >> 6) == 1) { /* SDC version 2.00 */
|
|
csize = csd[9] + ((WORD)csd[8] << 8) + 1;
|
|
*(DWORD*)buff = (DWORD)csize << 10;
|
|
} else { /* SDC version 1.XX or MMC*/
|
|
n = (csd[5] & 15) + ((csd[10] & 128) >> 7) + ((csd[9] & 3) << 1) + 2;
|
|
csize = (csd[8] >> 6) + ((WORD)csd[7] << 2) + ((WORD)(csd[6] & 3) << 10) + 1;
|
|
*(DWORD*)buff = (DWORD)csize << (n - 9);
|
|
}
|
|
res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
case GET_SECTOR_SIZE : /* Get R/W sector size (WORD) */
|
|
*(WORD*)buff = 512;
|
|
res = RES_OK;
|
|
break;
|
|
|
|
case GET_BLOCK_SIZE : /* Get erase block size in unit of sector (DWORD) */
|
|
if (CardType & CT_SD2) { /* SDC version 2.00 */
|
|
if (send_cmd(ACMD13, 0) == 0) { /* Read SD status */
|
|
rcvr_spi();
|
|
if (rcvr_datablock(csd, 16)) { /* Read partial block */
|
|
for (n = 64 - 16; n; n--) rcvr_spi(); /* Purge trailing data */
|
|
*(DWORD*)buff = 16UL << (csd[10] >> 4);
|
|
res = RES_OK;
|
|
}
|
|
}
|
|
} else { /* SDC version 1.XX or MMC */
|
|
if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) { /* Read CSD */
|
|
if (CardType & CT_SD1) { /* SDC version 1.XX */
|
|
*(DWORD*)buff = (((csd[10] & 63) << 1) + ((WORD)(csd[11] & 128) >> 7) + 1) << ((csd[13] >> 6) - 1);
|
|
} else { /* MMC */
|
|
*(DWORD*)buff = ((WORD)((csd[10] & 124) >> 2) + 1) * (((csd[11] & 3) << 3) + ((csd[11] & 224) >> 5) + 1);
|
|
}
|
|
res = RES_OK;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MMC_GET_TYPE : /* Get card type flags (1 byte) */
|
|
*ptr = CardType;
|
|
res = RES_OK;
|
|
break;
|
|
|
|
case MMC_GET_CSD : /* Receive CSD as a data block (16 bytes) */
|
|
if (send_cmd(CMD9, 0) == 0 /* READ_CSD */
|
|
&& rcvr_datablock(ptr, 16))
|
|
res = RES_OK;
|
|
break;
|
|
|
|
case MMC_GET_CID : /* Receive CID as a data block (16 bytes) */
|
|
if (send_cmd(CMD10, 0) == 0 /* READ_CID */
|
|
&& rcvr_datablock(ptr, 16))
|
|
res = RES_OK;
|
|
break;
|
|
|
|
case MMC_GET_OCR : /* Receive OCR as an R3 resp (4 bytes) */
|
|
if (send_cmd(CMD58, 0) == 0) { /* READ_OCR */
|
|
for (n = 4; n; n--) *ptr++ = rcvr_spi();
|
|
res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
case MMC_GET_SDSTAT : /* Receive SD status as a data block (64 bytes) */
|
|
if (send_cmd(ACMD13, 0) == 0) { /* SD_STATUS */
|
|
rcvr_spi();
|
|
if (rcvr_datablock(ptr, 64))
|
|
res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
res = RES_PARERR;
|
|
}
|
|
|
|
release_spi();
|
|
}
|
|
|
|
return res;
|
|
}
|
|
#endif /* _USE_IOCTL != 0 */
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Device Timer Interrupt Procedure (Platform dependent) */
|
|
/*-----------------------------------------------------------------------*/
|
|
/* This function must be called in period of 10ms */
|
|
|
|
void sdPoll10ms()
|
|
{
|
|
static DWORD pv;
|
|
DWORD ns;
|
|
BYTE n, s;
|
|
|
|
|
|
n = Timer1; /* 100Hz decrement timers */
|
|
if (n) Timer1 = --n;
|
|
n = Timer2;
|
|
if (n) Timer2 = --n;
|
|
|
|
ns = pv;
|
|
pv = socket_is_empty() | socket_is_write_protected(); /* Sample socket switch */
|
|
|
|
if (ns == pv) { /* Have contacts stabled? */
|
|
s = Stat;
|
|
|
|
if (pv & socket_state_mask_wp) /* WP is H (write protected) */
|
|
s |= STA_PROTECT;
|
|
else /* WP is L (write enabled) */
|
|
s &= ~STA_PROTECT;
|
|
|
|
if (pv & socket_state_mask_cp) /* INS = H (Socket empty) */
|
|
s |= (STA_NODISK | STA_NOINIT);
|
|
else /* INS = L (Card inserted) */
|
|
s &= ~STA_NODISK;
|
|
|
|
Stat = s;
|
|
}
|
|
}
|
|
|
|
FATFS g_FATFS_Obj;
|
|
|
|
void sdInit()
|
|
{
|
|
if (f_mount(0, &g_FATFS_Obj) == FR_OK)
|
|
refreshSystemAudioFiles();
|
|
}
|
|
|
|
uint32_t sdMounted()
|
|
{
|
|
return g_FATFS_Obj.fs_type != 0;
|
|
}
|
|
|
|
|