drivers/mmc/host/msm_sdcc.h - kernel/msm-4.9 - Gitiles

 /*
  *  linux/drivers/mmc/host/msmsdcc.h - QCT MSM7K SDC Controller
  *
  *  Copyright (C) 2008 Google, All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  * - Based on mmci.h
  */

 #ifndef _MSM_SDCC_H
 #define _MSM_SDCC_H

 #define MSMSDCC_CRCI_SDC1	6
 #define MSMSDCC_CRCI_SDC2	7
 #define MSMSDCC_CRCI_SDC3	12
 #define MSMSDCC_CRCI_SDC4	13

 #define MMCIPOWER		0x000
 #define MCI_PWR_OFF		0x00
 #define MCI_PWR_UP		0x02
 #define MCI_PWR_ON		0x03
 #define MCI_OD			(1 << 6)

 #define MMCICLOCK		0x004
 #define MCI_CLK_ENABLE		(1 << 8)
 #define MCI_CLK_PWRSAVE		(1 << 9)
 #define MCI_CLK_WIDEBUS		(1 << 10)
 #define MCI_CLK_FLOWENA		(1 << 12)
 #define MCI_CLK_INVERTOUT	(1 << 13)
 #define MCI_CLK_SELECTIN	(1 << 14)

 #define MMCIARGUMENT		0x008
 #define MMCICOMMAND		0x00c
 #define MCI_CPSM_RESPONSE	(1 << 6)
 #define MCI_CPSM_LONGRSP	(1 << 7)
 #define MCI_CPSM_INTERRUPT	(1 << 8)
 #define MCI_CPSM_PENDING	(1 << 9)
 #define MCI_CPSM_ENABLE		(1 << 10)
 #define MCI_CPSM_PROGENA	(1 << 11)
 #define MCI_CSPM_DATCMD		(1 << 12)
 #define MCI_CSPM_MCIABORT	(1 << 13)
 #define MCI_CSPM_CCSENABLE	(1 << 14)
 #define MCI_CSPM_CCSDISABLE	(1 << 15)


 #define MMCIRESPCMD		0x010
 #define MMCIRESPONSE0		0x014
 #define MMCIRESPONSE1		0x018
 #define MMCIRESPONSE2		0x01c
 #define MMCIRESPONSE3		0x020
 #define MMCIDATATIMER		0x024
 #define MMCIDATALENGTH		0x028

 #define MMCIDATACTRL		0x02c
 #define MCI_DPSM_ENABLE		(1 << 0)
 #define MCI_DPSM_DIRECTION	(1 << 1)
 #define MCI_DPSM_MODE		(1 << 2)
 #define MCI_DPSM_DMAENABLE	(1 << 3)

 #define MMCIDATACNT		0x030
 #define MMCISTATUS		0x034
 #define MCI_CMDCRCFAIL		(1 << 0)
 #define MCI_DATACRCFAIL		(1 << 1)
 #define MCI_CMDTIMEOUT		(1 << 2)
 #define MCI_DATATIMEOUT		(1 << 3)
 #define MCI_TXUNDERRUN		(1 << 4)
 #define MCI_RXOVERRUN		(1 << 5)
 #define MCI_CMDRESPEND		(1 << 6)
 #define MCI_CMDSENT		(1 << 7)
 #define MCI_DATAEND		(1 << 8)
 #define MCI_DATABLOCKEND	(1 << 10)
 #define MCI_CMDACTIVE		(1 << 11)
 #define MCI_TXACTIVE		(1 << 12)
 #define MCI_RXACTIVE		(1 << 13)
 #define MCI_TXFIFOHALFEMPTY	(1 << 14)
 #define MCI_RXFIFOHALFFULL	(1 << 15)
 #define MCI_TXFIFOFULL		(1 << 16)
 #define MCI_RXFIFOFULL		(1 << 17)
 #define MCI_TXFIFOEMPTY		(1 << 18)
 #define MCI_RXFIFOEMPTY		(1 << 19)
 #define MCI_TXDATAAVLBL		(1 << 20)
 #define MCI_RXDATAAVLBL		(1 << 21)
 #define MCI_SDIOINTR		(1 << 22)
 #define MCI_PROGDONE		(1 << 23)
 #define MCI_ATACMDCOMPL		(1 << 24)
 #define MCI_SDIOINTOPER		(1 << 25)
 #define MCI_CCSTIMEOUT		(1 << 26)

 #define MMCICLEAR		0x038
 #define MCI_CMDCRCFAILCLR	(1 << 0)
 #define MCI_DATACRCFAILCLR	(1 << 1)
 #define MCI_CMDTIMEOUTCLR	(1 << 2)
 #define MCI_DATATIMEOUTCLR	(1 << 3)
 #define MCI_TXUNDERRUNCLR	(1 << 4)
 #define MCI_RXOVERRUNCLR	(1 << 5)
 #define MCI_CMDRESPENDCLR	(1 << 6)
 #define MCI_CMDSENTCLR		(1 << 7)
 #define MCI_DATAENDCLR		(1 << 8)
 #define MCI_DATABLOCKENDCLR	(1 << 10)

 #define MMCIMASK0		0x03c
 #define MCI_CMDCRCFAILMASK	(1 << 0)
 #define MCI_DATACRCFAILMASK	(1 << 1)
 #define MCI_CMDTIMEOUTMASK	(1 << 2)
 #define MCI_DATATIMEOUTMASK	(1 << 3)
 #define MCI_TXUNDERRUNMASK	(1 << 4)
 #define MCI_RXOVERRUNMASK	(1 << 5)
 #define MCI_CMDRESPENDMASK	(1 << 6)
 #define MCI_CMDSENTMASK		(1 << 7)
 #define MCI_DATAENDMASK		(1 << 8)
 #define MCI_DATABLOCKENDMASK	(1 << 10)
 #define MCI_CMDACTIVEMASK	(1 << 11)
 #define MCI_TXACTIVEMASK	(1 << 12)
 #define MCI_RXACTIVEMASK	(1 << 13)
 #define MCI_TXFIFOHALFEMPTYMASK	(1 << 14)
 #define MCI_RXFIFOHALFFULLMASK	(1 << 15)
 #define MCI_TXFIFOFULLMASK	(1 << 16)
 #define MCI_RXFIFOFULLMASK	(1 << 17)
 #define MCI_TXFIFOEMPTYMASK	(1 << 18)
 #define MCI_RXFIFOEMPTYMASK	(1 << 19)
 #define MCI_TXDATAAVLBLMASK	(1 << 20)
 #define MCI_RXDATAAVLBLMASK	(1 << 21)
 #define MCI_SDIOINTMASK		(1 << 22)
 #define MCI_PROGDONEMASK	(1 << 23)
 #define MCI_ATACMDCOMPLMASK	(1 << 24)
 #define MCI_SDIOINTOPERMASK	(1 << 25)
 #define MCI_CCSTIMEOUTMASK	(1 << 26)

 #define MMCIMASK1		0x040
 #define MMCIFIFOCNT		0x044
 #define MCICCSTIMER		0x058

 #define MMCIFIFO		0x080 /* to 0x0bc */

 #define MCI_IRQENABLE	\
 	(MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK|	\
 	MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK|	\
 	MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATAENDMASK)

 /*
  * The size of the FIFO in bytes.
  */
 #define MCI_FIFOSIZE	(16*4)

 #define MCI_FIFOHALFSIZE (MCI_FIFOSIZE / 2)

 #define NR_SG		32

 struct clk;

 struct msmsdcc_nc_dmadata {
 	dmov_box	cmd[NR_SG];
 	uint32_t	cmdptr;
 };

 struct msmsdcc_dma_data {
 	struct msmsdcc_nc_dmadata	*nc;
 	dma_addr_t			nc_busaddr;
 	dma_addr_t			cmd_busaddr;
 	dma_addr_t			cmdptr_busaddr;

 	struct msm_dmov_cmd		hdr;
 	enum dma_data_direction		dir;

 	struct scatterlist		*sg;
 	int				num_ents;

 	int				channel;
 	struct msmsdcc_host		*host;
 	int				busy; /* Set if DM is busy */
 };

 struct msmsdcc_pio_data {
 	struct scatterlist	*sg;
 	unsigned int		sg_len;
 	unsigned int		sg_off;
 };

 struct msmsdcc_curr_req {
 	struct mmc_request	*mrq;
 	struct mmc_command	*cmd;
 	struct mmc_data		*data;
 	unsigned int		xfer_size;	/* Total data size */
 	unsigned int		xfer_remain;	/* Bytes remaining to send */
 	unsigned int		data_xfered;	/* Bytes acked by BLKEND irq */
 	int			got_dataend;
 	int			got_datablkend;
 	int			user_pages;
 };

 struct msmsdcc_stats {
 	unsigned int reqs;
 	unsigned int cmds;
 	unsigned int cmdpoll_hits;
 	unsigned int cmdpoll_misses;
 };

 struct msmsdcc_host {
 	struct resource		*cmd_irqres;
 	struct resource		*pio_irqres;
 	struct resource		*memres;
 	struct resource		*dmares;
 	void __iomem		*base;
 	int			pdev_id;
 	unsigned int		stat_irq;

 	struct msmsdcc_curr_req	curr;

 	struct mmc_host		*mmc;
 	struct clk		*clk;		/* main MMC bus clock */
 	struct clk		*pclk;		/* SDCC peripheral bus clock */
 	unsigned int		clks_on;	/* set if clocks are enabled */
 	struct timer_list	command_timer;

 	unsigned int		eject;		/* eject state */

 	spinlock_t		lock;

 	unsigned int		clk_rate;	/* Current clock rate */
 	unsigned int		pclk_rate;

 	u32			pwr;
 	u32			saved_irq0mask;	/* MMCIMASK0 reg value */
 	struct mmc_platform_data *plat;

 	struct timer_list	timer;
 	unsigned int		oldstat;

 	struct msmsdcc_dma_data	dma;
 	struct msmsdcc_pio_data	pio;
 	int			cmdpoll;
 	struct msmsdcc_stats	stats;
 };

 #endif
	/*
	* linux/drivers/mmc/host/msmsdcc.h - QCT MSM7K SDC Controller
	*
	* Copyright (C) 2008 Google, All Rights Reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* - Based on mmci.h
	*/

	#ifndef _MSM_SDCC_H
	#define _MSM_SDCC_H

	#define MSMSDCC_CRCI_SDC1 6
	#define MSMSDCC_CRCI_SDC2 7
	#define MSMSDCC_CRCI_SDC3 12
	#define MSMSDCC_CRCI_SDC4 13

	#define MMCIPOWER 0x000
	#define MCI_PWR_OFF 0x00
	#define MCI_PWR_UP 0x02
	#define MCI_PWR_ON 0x03
	#define MCI_OD (1 << 6)

	#define MMCICLOCK 0x004
	#define MCI_CLK_ENABLE (1 << 8)
	#define MCI_CLK_PWRSAVE (1 << 9)
	#define MCI_CLK_WIDEBUS (1 << 10)
	#define MCI_CLK_FLOWENA (1 << 12)
	#define MCI_CLK_INVERTOUT (1 << 13)
	#define MCI_CLK_SELECTIN (1 << 14)

	#define MMCIARGUMENT 0x008
	#define MMCICOMMAND 0x00c
	#define MCI_CPSM_RESPONSE (1 << 6)
	#define MCI_CPSM_LONGRSP (1 << 7)
	#define MCI_CPSM_INTERRUPT (1 << 8)
	#define MCI_CPSM_PENDING (1 << 9)
	#define MCI_CPSM_ENABLE (1 << 10)
	#define MCI_CPSM_PROGENA (1 << 11)
	#define MCI_CSPM_DATCMD (1 << 12)
	#define MCI_CSPM_MCIABORT (1 << 13)
	#define MCI_CSPM_CCSENABLE (1 << 14)
	#define MCI_CSPM_CCSDISABLE (1 << 15)


	#define MMCIRESPCMD 0x010
	#define MMCIRESPONSE0 0x014
	#define MMCIRESPONSE1 0x018
	#define MMCIRESPONSE2 0x01c
	#define MMCIRESPONSE3 0x020
	#define MMCIDATATIMER 0x024
	#define MMCIDATALENGTH 0x028

	#define MMCIDATACTRL 0x02c
	#define MCI_DPSM_ENABLE (1 << 0)
	#define MCI_DPSM_DIRECTION (1 << 1)
	#define MCI_DPSM_MODE (1 << 2)
	#define MCI_DPSM_DMAENABLE (1 << 3)

	#define MMCIDATACNT 0x030
	#define MMCISTATUS 0x034
	#define MCI_CMDCRCFAIL (1 << 0)
	#define MCI_DATACRCFAIL (1 << 1)
	#define MCI_CMDTIMEOUT (1 << 2)
	#define MCI_DATATIMEOUT (1 << 3)
	#define MCI_TXUNDERRUN (1 << 4)
	#define MCI_RXOVERRUN (1 << 5)
	#define MCI_CMDRESPEND (1 << 6)
	#define MCI_CMDSENT (1 << 7)
	#define MCI_DATAEND (1 << 8)
	#define MCI_DATABLOCKEND (1 << 10)
	#define MCI_CMDACTIVE (1 << 11)
	#define MCI_TXACTIVE (1 << 12)
	#define MCI_RXACTIVE (1 << 13)
	#define MCI_TXFIFOHALFEMPTY (1 << 14)
	#define MCI_RXFIFOHALFFULL (1 << 15)
	#define MCI_TXFIFOFULL (1 << 16)
	#define MCI_RXFIFOFULL (1 << 17)
	#define MCI_TXFIFOEMPTY (1 << 18)
	#define MCI_RXFIFOEMPTY (1 << 19)
	#define MCI_TXDATAAVLBL (1 << 20)
	#define MCI_RXDATAAVLBL (1 << 21)
	#define MCI_SDIOINTR (1 << 22)
	#define MCI_PROGDONE (1 << 23)
	#define MCI_ATACMDCOMPL (1 << 24)
	#define MCI_SDIOINTOPER (1 << 25)
	#define MCI_CCSTIMEOUT (1 << 26)

	#define MMCICLEAR 0x038
	#define MCI_CMDCRCFAILCLR (1 << 0)
	#define MCI_DATACRCFAILCLR (1 << 1)
	#define MCI_CMDTIMEOUTCLR (1 << 2)
	#define MCI_DATATIMEOUTCLR (1 << 3)
	#define MCI_TXUNDERRUNCLR (1 << 4)
	#define MCI_RXOVERRUNCLR (1 << 5)
	#define MCI_CMDRESPENDCLR (1 << 6)
	#define MCI_CMDSENTCLR (1 << 7)
	#define MCI_DATAENDCLR (1 << 8)
	#define MCI_DATABLOCKENDCLR (1 << 10)

	#define MMCIMASK0 0x03c
	#define MCI_CMDCRCFAILMASK (1 << 0)
	#define MCI_DATACRCFAILMASK (1 << 1)
	#define MCI_CMDTIMEOUTMASK (1 << 2)
	#define MCI_DATATIMEOUTMASK (1 << 3)
	#define MCI_TXUNDERRUNMASK (1 << 4)
	#define MCI_RXOVERRUNMASK (1 << 5)
	#define MCI_CMDRESPENDMASK (1 << 6)
	#define MCI_CMDSENTMASK (1 << 7)
	#define MCI_DATAENDMASK (1 << 8)
	#define MCI_DATABLOCKENDMASK (1 << 10)
	#define MCI_CMDACTIVEMASK (1 << 11)
	#define MCI_TXACTIVEMASK (1 << 12)
	#define MCI_RXACTIVEMASK (1 << 13)
	#define MCI_TXFIFOHALFEMPTYMASK (1 << 14)
	#define MCI_RXFIFOHALFFULLMASK (1 << 15)
	#define MCI_TXFIFOFULLMASK (1 << 16)
	#define MCI_RXFIFOFULLMASK (1 << 17)
	#define MCI_TXFIFOEMPTYMASK (1 << 18)
	#define MCI_RXFIFOEMPTYMASK (1 << 19)
	#define MCI_TXDATAAVLBLMASK (1 << 20)
	#define MCI_RXDATAAVLBLMASK (1 << 21)
	#define MCI_SDIOINTMASK (1 << 22)
	#define MCI_PROGDONEMASK (1 << 23)
	#define MCI_ATACMDCOMPLMASK (1 << 24)
	#define MCI_SDIOINTOPERMASK (1 << 25)
	#define MCI_CCSTIMEOUTMASK (1 << 26)

	#define MMCIMASK1 0x040
	#define MMCIFIFOCNT 0x044
	#define MCICCSTIMER 0x058

	#define MMCIFIFO 0x080 /* to 0x0bc */

	#define MCI_IRQENABLE \
	(MCI_CMDCRCFAILMASK\|MCI_DATACRCFAILMASK\|MCI_CMDTIMEOUTMASK\| \
	MCI_DATATIMEOUTMASK\|MCI_TXUNDERRUNMASK\|MCI_RXOVERRUNMASK\| \
	MCI_CMDRESPENDMASK\|MCI_CMDSENTMASK\|MCI_DATAENDMASK)

	/*
	* The size of the FIFO in bytes.
	*/
	#define MCI_FIFOSIZE (16*4)

	#define MCI_FIFOHALFSIZE (MCI_FIFOSIZE / 2)

	#define NR_SG 32

	struct clk;

	struct msmsdcc_nc_dmadata {
	dmov_box cmd[NR_SG];
	uint32_t cmdptr;
	};

	struct msmsdcc_dma_data {
	struct msmsdcc_nc_dmadata *nc;
	dma_addr_t nc_busaddr;
	dma_addr_t cmd_busaddr;
	dma_addr_t cmdptr_busaddr;

	struct msm_dmov_cmd hdr;
	enum dma_data_direction dir;

	struct scatterlist *sg;
	int num_ents;

	int channel;
	struct msmsdcc_host *host;
	int busy; /* Set if DM is busy */
	};

	struct msmsdcc_pio_data {
	struct scatterlist *sg;
	unsigned int sg_len;
	unsigned int sg_off;
	};

	struct msmsdcc_curr_req {
	struct mmc_request *mrq;
	struct mmc_command *cmd;
	struct mmc_data *data;
	unsigned int xfer_size; /* Total data size */
	unsigned int xfer_remain; /* Bytes remaining to send */
	unsigned int data_xfered; /* Bytes acked by BLKEND irq */
	int got_dataend;
	int got_datablkend;
	int user_pages;
	};

	struct msmsdcc_stats {
	unsigned int reqs;
	unsigned int cmds;
	unsigned int cmdpoll_hits;
	unsigned int cmdpoll_misses;
	};

	struct msmsdcc_host {
	struct resource *cmd_irqres;
	struct resource *pio_irqres;
	struct resource *memres;
	struct resource *dmares;
	void __iomem *base;
	int pdev_id;
	unsigned int stat_irq;

	struct msmsdcc_curr_req curr;

	struct mmc_host *mmc;
	struct clk clk; / main MMC bus clock */
	struct clk pclk; / SDCC peripheral bus clock */
	unsigned int clks_on; /* set if clocks are enabled */
	struct timer_list command_timer;

	unsigned int eject; /* eject state */

	spinlock_t lock;

	unsigned int clk_rate; /* Current clock rate */
	unsigned int pclk_rate;

	u32 pwr;
	u32 saved_irq0mask; /* MMCIMASK0 reg value */
	struct mmc_platform_data *plat;

	struct timer_list timer;
	unsigned int oldstat;

	struct msmsdcc_dma_data dma;
	struct msmsdcc_pio_data pio;
	int cmdpoll;
	struct msmsdcc_stats stats;
	};

	#endif