188 lines
9.6 KiB
C
188 lines
9.6 KiB
C
/****************************************************************************
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* drivers/mmcsd/mmcsd_spi.h
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*
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* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __DRIVERS_MMCSD_MMCSD_SPI_H
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#define __DRIVERS_MMCSD_MMCSD_SPI_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* SPI *******************************************************************/
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/* SPI Command Set */
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#define CMD0 0x40 /* GO_IDLE_STATE: Resets all cards to idle state */
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#define CMD1 0x41 /* SEND_OP_COND: Sends capacity support information */
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#define CMD6 0x46 /* SWITCH_FUNC: Checks switchable function */
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#define CMD8 0x48 /* SEND_IF_COND: Sends SD Memory Card interface condition */
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#define CMD9 0x49 /* SEND_CSD: Asks card to send its card specific data (CSD) */
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#define CMD10 0x4a /* SEND_CID: Asks card to send its card identification (CID) */
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#define CMD12 0x4c /* STOP_TRANSMISSION: Forces the card to stop transmission */
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#define CMD13 0x4d /* SEND_STATUS: Asks card to send its status register */
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#define CMD16 0x50 /* SET_BLOCKLEN: Sets a block length (in bytes) */
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#define CMD17 0x51 /* READ_SINGLE_BLOCK: Reads a block of the selected size */
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#define CMD18 0x52 /* READ_MULTIPLE_BLOCK: Continuously transfers blocks from card to host */
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#define CMD20 0x54 /* CMD_WRITEBLOCK: Write block to memory (MMC) */
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#define CMD24 0x58 /* WRITE_BLOCK: Writes a block of the selected size */
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#define CMD25 0x59 /* WRITE_MULTIPLE_BLOCK: Continuously writes blocks of data */
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#define CMD27 0x5b /* PROGRAM_CSD: Set programmable bits of the CSD */
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#define CMD28 0x5c /* SET_WRITE_PROT: Sets the write protection bit of group */
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#define CMD29 0x5d /* CLR_WRITE_PROT: Clears the write protection bit of group */
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#define CMD30 0x5e /* SEND_WRITE_PROT: Asks card to send state of write protection bits */
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#define CMD32 0x60 /* ERASE_WR_BLK_START_ADDR: Sets address of first block to erase */
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#define CMD33 0x61 /* ERASE_WR_BLK_END_ADDR: Sets address of last block to erase */
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#define CMD34 0x62 /* UNTAG_SECTOR: (MMC) */
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#define CMD35 0x63 /* TAG_ERASE_GROUP_START: (MMC) */
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#define CMD36 0x64 /* TAG_ERASE_GOUPR_END: (MMC) */
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#define CMD37 0x65 /* UNTAG_ERASE_GROUP: (MMC) */
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#define CMD38 0x66 /* ERASE: Erases all previously selected write blocks */
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#define CMD40 0x68 /* CRC_ON_OFF: (MMC) */
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#define CMD42 0x6a /* LOCK_UNLOCK: Used to Set/Reset the Password or lock/unlock card */
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#define CMD55 0x77 /* APP_CMD: Tells card that the next command is an application specific command */
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#define CMD56 0x78 /* GEN_CMD: Used transfer a block to or get block from card */
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#define CMD58 0x7a /* READ_OCR :Reads the OCR register of a card */
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#define CMD59 0x7b /* CRC_ON_OFF: Turns the CRC option on or off */
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#define ACMD13 0x4d /* SD_STATUS: Send the SD Status */
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#define ACMD22 0x56 /* SEND_NUM_WR_BLOCKS: Send number of the errorfree blocks */
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#define ACMD23 0x57 /* SET_WR_BLK_ERASE_COUNT: Set number blocks to erase before writing */
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#define ACMD41 0x69 /* SD_SEND_OP_COND: Sends host capacity support information */
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#define ACMD42 0x6a /* SET_CLR_CARD_DETECT: Connect/disconnect pull-up resistor on CS */
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#define ACMD51 0x73 /* SEND_SCR: Reads the SD Configuration Register (SCR) */
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/* SPI 8-bit R1 response */
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#define MMCSD_SPIR1_OK 0x00 /* No error bits set */
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#define MMCSD_SPIR1_IDLESTATE 0x01 /* Idle state */
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#define MMCSD_SPIR1_ERASERESET 0x02 /* Erase reset */
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#define MMCSD_SPIR1_ILLEGALCMD 0x04 /* Illegal command */
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#define MMCSD_SPIR1_CRCERROR 0x08 /* Com CRC error */
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#define MMCSD_SPIR1_ERASEERROR 0x10 /* Erase sequence error */
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#define MMCSD_SPIR1_ADDRERROR 0x20 /* Address error */
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#define MMCSD_SPIR1_PARAMERROR 0x40 /* Parameter error */
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/* SPI 8-bit R2 response */
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#define MMCSD_SPIR2_CARDLOCKED 0x0001 /* Card is locked */
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#define MMCSD_SPIR2_WPERASESKIP 0x0002 /* WP erase skip */
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#define MMCSD_SPIR2_LOCKFAIL 0x0002 /* Lock/unlock cmd failed */
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#define MMCSD_SPIR2_ERROR 0x0004 /* Error */
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#define MMCSD_SPIR2_CCERROR 0x0008 /* CC error */
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#define MMCSD_SPIR2_CARDECCFAIL 0x0010 /* Card ECC failed */
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#define MMCSD_SPIR2_WPVIOLATION 0x0020 /* WP violoation */
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#define MMCSD_SPIR2_ERASEPARAM 0x0040 /* Erase parameter */
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#define MMCSD_SPIR2_OUTOFRANGE 0x0080 /* Out of range */
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#define MMCSD_SPIR2_CSDOVERWRITE 0x0080 /* CSD overwrite */
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#define MMCSD_SPIR2_IDLESTATE 0x0100 /* In idle state */
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#define MMCSD_SPIR2_ERASERESET 0x0200 /* Erase reset */
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#define MMCSD_SPIR2_ILLEGALCMD 0x0400 /* Illegal command */
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#define MMCSD_SPIR2_CRCERROR 0x0800 /* Com CRC error */
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#define MMCSD_SPIR2_ERASEERROR 0x1000 /* Erase sequence error */
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#define MMCSD_SPIR2_ADDRERROR 0x2000 /* Address error */
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#define MMCSD_SPIR2_PARAMERROR 0x4000 /* Parameter error */
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/* Last 4 bytes of the 5 byte R7 response */
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#define MMCSD_SPIR7_VERSION_SHIFT (28) /* Bits 28-31: Command version number */
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#define MMCSD_SPIR7_VERSION_MASK ((uint32_t)0x0f << MMCSD_SPIR7_VERSION_SHIFT)
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#define MMCSD_SPIR7_VOLTAGE_SHIFT (8) /* Bits 8-11: Voltage accepted */
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#define MMCSD_SPIR7_VOLTAGE_MASK ((uint32_t)0x0f << MMCSD_SPIR7_VOLTAGE_SHIFT)
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#define MMCSD_SPIR7_VOLTAGE_27 ((uint32_t)0x01 << MMCSD_SPIR7_VOLTAGE_SHIFT) /* 2.7-3.6V */
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#define MMCSD_SPIR7_ECHO_SHIFT (0) /* Bits 0-7: Echoed check pattern */
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#define MMCSD_SPIR7_ECHO_MASK ((uint32_t)0xff << MMCSD_SPIR7_ECHO_SHIFT)
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/* Data Response */
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#define MMCSD_SPIDR_MASK 0x1f /* Mask for valid data response bits */
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#define MMCSD_SPIDR_ACCEPTED 0x05 /* Data accepted */
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#define MMCSD_SPIDR_CRCERROR 0x0b /* Data rejected due to CRC error */
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#define MMCSD_SPIDR_WRERROR 0x0d /* Data rejected due to write error */
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/* Data Tokens */
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#define MMCSD_SPIDT_STARTBLKSNGL 0xfe /* First byte of block, single block */
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#define MMCSD_SPIDT_STARTBLKMULTI 0xfc /* First byte of block, multi-block */
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#define MMCSD_SPIDT_STOPTRANS 0xfd /* Stop transmission */
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/* Data error token */
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#define MMCSD_SPIDET_UPPER 0xf0 /* The upper four bits are zero */
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#define MMCSD_SPIDET_ERROR 0x01 /* Error */
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#define MMCSD_SPIDET_CCERROR 0x02 /* CC error */
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#define MMCSD_SPIDET_CARDECCFAIL 0x04 /* Card ECC failed */
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#define MMCSD_SPIDET_OUTOFRANGE 0x08 /* Out of range */
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/* Operating Conditions register */
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#define MMCSD_OCR_V27 ((uint32_t)1 << 15) /* Bit 15: 2.7-2.8V */
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#define MMCSD_OCR_V28 ((uint32_t)1 << 16) /* Bit 16: 2.8-2.9V */
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#define MMCSD_OCR_V29 ((uint32_t)1 << 17) /* Bit 17: 2.9-3.0V */
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#define MMCSD_OCR_V30 ((uint32_t)1 << 18) /* Bit 18: 3.0-3.1V */
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#define MMCSD_OCR_V31 ((uint32_t)1 << 19) /* Bit 19: 3.1-3.2V */
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#define MMCSD_OCR_V32 ((uint32_t)1 << 20) /* Bit 20: 3.2-3.3V */
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#define MMCSD_OCR_V33 ((uint32_t)1 << 21) /* Bit 21: 3.3-3.4V */
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#define MMCSD_OCR_V34 ((uint32_t)1 << 22) /* Bit 22: 3.4-3.5V */
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#define MMCSD_OCR_V35 ((uint32_t)1 << 23) /* Bit 23: 3.5-3.6V */
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#define MMCSD_OCR_CCS ((uint32_t)1 << 30) /* Bit 30: Card capacity status */
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#define MMCSD_OCR_BUSY ((uint32_t)1 << 31) /* Bit 31: Card powered up status bit */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __DRIVERS_MMCSD_MMCSD_SPI_H */
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