From b2bcc798bbb482b2909801280f3c4aff8cbbf5be Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Tue, 22 May 2007 20:25:21 +0200 Subject: mmc: implement SDIO IO_RW_DIRECT operation Signed-off-by: Pierre Ossman --- include/linux/mmc/sdio.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) (limited to 'include/linux/mmc/sdio.h') diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h index d1a0b15cdfdf..e5f06de7d527 100644 --- a/include/linux/mmc/sdio.h +++ b/include/linux/mmc/sdio.h @@ -14,6 +14,40 @@ /* SDIO commands type argument response */ #define SD_IO_SEND_OP_COND 5 /* bcr [23:0] OCR R4 */ +#define SD_IO_RW_DIRECT 52 /* ac [31:0] See below R5 */ + +/* + * SD_IO_RW_DIRECT argument format: + * + * [31] R/W flag + * [30:28] Function number + * [27] RAW flag + * [25:9] Register address + * [7:0] Data + */ + +/* + SDIO status in R5 + Type + e : error bit + s : status bit + r : detected and set for the actual command response + x : detected and set during command execution. the host must poll + the card by sending status command in order to read these bits. + Clear condition + a : according to the card state + b : always related to the previous command. Reception of + a valid command will clear it (with a delay of one command) + c : clear by read + */ + +#define R5_COM_CRC_ERROR (1 << 15) /* er, b */ +#define R5_ILLEGAL_COMMAND (1 << 14) /* er, b */ +#define R5_ERROR (1 << 11) /* erx, c */ +#define R5_FUNCTION_NUMBER (1 << 9) /* er, c */ +#define R5_OUT_OF_RANGE (1 << 8) /* er, c */ +#define R5_STATUS(x) (x & 0xCB00) +#define R5_IO_CURRENT_STATE(x) ((x & 0x3000) >> 12) /* s, b */ #endif -- cgit v1.2.3