2 * @brief LPC18xx/43xx SD/MMC card driver
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5 * Copyright(C) NXP Semiconductors, 2012
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6 * All rights reserved.
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9 * Software that is described herein is for illustrative purposes only
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10 * which provides customers with programming information regarding the
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11 * LPC products. This software is supplied "AS IS" without any warranties of
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12 * any kind, and NXP Semiconductors and its licensor disclaim any and
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13 * all warranties, express or implied, including all implied warranties of
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14 * merchantability, fitness for a particular purpose and non-infringement of
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15 * intellectual property rights. NXP Semiconductors assumes no responsibility
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16 * or liability for the use of the software, conveys no license or rights under any
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17 * patent, copyright, mask work right, or any other intellectual property rights in
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18 * or to any products. NXP Semiconductors reserves the right to make changes
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19 * in the software without notification. NXP Semiconductors also makes no
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20 * representation or warranty that such application will be suitable for the
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21 * specified use without further testing or modification.
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24 * Permission to use, copy, modify, and distribute this software and its
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25 * documentation is hereby granted, under NXP Semiconductors' and its
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26 * licensor's relevant copyrights in the software, without fee, provided that it
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27 * is used in conjunction with NXP Semiconductors microcontrollers. This
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28 * copyright, permission, and disclaimer notice must appear in all copies of
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32 #ifndef __SDMMC_18XX_43XX_H_
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33 #define __SDMMC_18XX_43XX_H_
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35 #include "lpc_sdmmc.h"
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41 /** @defgroup SDMMC_18XX_43XX CHIP: LPC18xx/43xx SD/MMC driver
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42 * @ingroup CHIP_18XX_43XX_Drivers
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46 #define CMD_MASK_RESP (0x3UL << 28)
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47 #define CMD_RESP(r) (((r) & 0x3) << 28)
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48 #define CMD_RESP_R0 (0 << 28)
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49 #define CMD_RESP_R1 (1 << 28)
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50 #define CMD_RESP_R2 (2 << 28)
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51 #define CMD_RESP_R3 (3 << 28)
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52 #define CMD_BIT_AUTO_STOP (1 << 24)
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53 #define CMD_BIT_APP (1 << 23)
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54 #define CMD_BIT_INIT (1 << 22)
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55 #define CMD_BIT_BUSY (1 << 21)
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56 #define CMD_BIT_LS (1 << 20) /* Low speed, used during acquire */
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57 #define CMD_BIT_DATA (1 << 19)
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58 #define CMD_BIT_WRITE (1 << 18)
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59 #define CMD_BIT_STREAM (1 << 17)
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60 #define CMD_MASK_CMD (0xff)
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61 #define CMD_SHIFT_CMD (0)
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63 #define CMD(c, r) ( ((c) & CMD_MASK_CMD) | CMD_RESP((r)) )
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65 #define CMD_IDLE CMD(MMC_GO_IDLE_STATE, 0) | CMD_BIT_LS | CMD_BIT_INIT
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66 #define CMD_SD_OP_COND CMD(SD_APP_OP_COND, 1) | CMD_BIT_LS | CMD_BIT_APP
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67 #define CMD_SD_SEND_IF_COND CMD(SD_CMD8, 1) | CMD_BIT_LS
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68 #define CMD_MMC_OP_COND CMD(MMC_SEND_OP_COND, 3) | CMD_BIT_LS | CMD_BIT_INIT
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69 #define CMD_ALL_SEND_CID CMD(MMC_ALL_SEND_CID, 2) | CMD_BIT_LS
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70 #define CMD_MMC_SET_RCA CMD(MMC_SET_RELATIVE_ADDR, 1) | CMD_BIT_LS
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71 #define CMD_SD_SEND_RCA CMD(SD_SEND_RELATIVE_ADDR, 1) | CMD_BIT_LS
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72 #define CMD_SEND_CSD CMD(MMC_SEND_CSD, 2) | CMD_BIT_LS
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73 #define CMD_SEND_EXT_CSD CMD(MMC_SEND_EXT_CSD, 1) | CMD_BIT_LS | CMD_BIT_DATA
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74 #define CMD_DESELECT_CARD CMD(MMC_SELECT_CARD, 0)
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75 #define CMD_SELECT_CARD CMD(MMC_SELECT_CARD, 1)
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76 #define CMD_SET_BLOCKLEN CMD(MMC_SET_BLOCKLEN, 1)
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77 #define CMD_SEND_STATUS CMD(MMC_SEND_STATUS, 1)
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78 #define CMD_READ_SINGLE CMD(MMC_READ_SINGLE_BLOCK, 1) | CMD_BIT_DATA
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79 #define CMD_READ_MULTIPLE CMD(MMC_READ_MULTIPLE_BLOCK, 1) | CMD_BIT_DATA | CMD_BIT_AUTO_STOP
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80 #define CMD_SD_SET_WIDTH CMD(SD_APP_SET_BUS_WIDTH, 1) | CMD_BIT_APP
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81 #define CMD_STOP CMD(MMC_STOP_TRANSMISSION, 1) | CMD_BIT_BUSY
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82 #define CMD_WRITE_SINGLE CMD(MMC_WRITE_BLOCK, 1) | CMD_BIT_DATA | CMD_BIT_WRITE
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83 #define CMD_WRITE_MULTIPLE CMD(MMC_WRITE_MULTIPLE_BLOCK, 1) | CMD_BIT_DATA | CMD_BIT_WRITE | CMD_BIT_AUTO_STOP
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85 /* Card specific setup data */
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86 typedef struct _mci_card_struct {
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87 sdif_device sdif_dev;
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88 SDMMC_CARD_T card_info;
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92 * @brief Get card's current state (idle, transfer, program, etc.)
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93 * @param pSDMMC : SDMMC peripheral selected
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94 * @return Current SD card transfer state
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96 int32_t Chip_SDMMC_GetState(LPC_SDMMC_T *pSDMMC);
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99 * @brief Function to enumerate the SD/MMC/SDHC/MMC+ cards
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100 * @param pSDMMC : SDMMC peripheral selected
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101 * @param pcardinfo : Pointer to pre-allocated card info structure
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102 * @return 1 if a card is acquired, otherwise 0
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104 uint32_t Chip_SDMMC_Acquire(LPC_SDMMC_T *pSDMMC, mci_card_struct *pcardinfo);
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107 * @brief Get the device size of SD/MMC card (after enumeration)
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108 * @param pSDMMC : SDMMC peripheral selected
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109 * @return Card size in number of bytes (capacity)
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111 int32_t Chip_SDMMC_GetDeviceSize(LPC_SDMMC_T *pSDMMC);
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114 * @brief Get the number of device blocks of SD/MMC card (after enumeration)
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115 * Since Chip_SDMMC_GetDeviceSize is limited to 32 bits cards with greater than
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116 * 2 GBytes of data will not be correct, in such cases users can use this function
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117 * to get the size of the card in blocks.
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118 * @param pSDMMC : SDMMC peripheral selected
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119 * @return Number of 512 bytes blocks in the card
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121 int32_t Chip_SDMMC_GetDeviceBlocks(LPC_SDMMC_T *pSDMMC);
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124 * @brief Performs the read of data from the SD/MMC card
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125 * @param pSDMMC : SDMMC peripheral selected
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126 * @param buffer : Pointer to data buffer to copy to
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127 * @param start_block : Start block number
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128 * @param num_blocks : Number of block to read
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129 * @return Bytes read, or 0 on error
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131 int32_t Chip_SDMMC_ReadBlocks(LPC_SDMMC_T *pSDMMC, void *buffer, int32_t start_block, int32_t num_blocks);
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134 * @brief Performs write of data to the SD/MMC card
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135 * @param pSDMMC : SDMMC peripheral selected
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136 * @param buffer : Pointer to data buffer to copy to
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137 * @param start_block : Start block number
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138 * @param num_blocks : Number of block to write
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139 * @return Number of bytes actually written, or 0 on error
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141 int32_t Chip_SDMMC_WriteBlocks(LPC_SDMMC_T *pSDMMC, void *buffer, int32_t start_block, int32_t num_blocks);
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151 #endif /* __SDMMC_18XX_43XX_H_ */
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