f57b225e43
Let drivers constify MMC host method operations tables, moving them from ".data" to ".rodata". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
/*
|
|
* linux/include/linux/mmc/host.h
|
|
*
|
|
* 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.
|
|
*
|
|
* Host driver specific definitions.
|
|
*/
|
|
#ifndef LINUX_MMC_HOST_H
|
|
#define LINUX_MMC_HOST_H
|
|
|
|
#include <linux/mmc/mmc.h>
|
|
|
|
struct mmc_ios {
|
|
unsigned int clock; /* clock rate */
|
|
unsigned short vdd;
|
|
|
|
#define MMC_VDD_150 0
|
|
#define MMC_VDD_155 1
|
|
#define MMC_VDD_160 2
|
|
#define MMC_VDD_165 3
|
|
#define MMC_VDD_170 4
|
|
#define MMC_VDD_180 5
|
|
#define MMC_VDD_190 6
|
|
#define MMC_VDD_200 7
|
|
#define MMC_VDD_210 8
|
|
#define MMC_VDD_220 9
|
|
#define MMC_VDD_230 10
|
|
#define MMC_VDD_240 11
|
|
#define MMC_VDD_250 12
|
|
#define MMC_VDD_260 13
|
|
#define MMC_VDD_270 14
|
|
#define MMC_VDD_280 15
|
|
#define MMC_VDD_290 16
|
|
#define MMC_VDD_300 17
|
|
#define MMC_VDD_310 18
|
|
#define MMC_VDD_320 19
|
|
#define MMC_VDD_330 20
|
|
#define MMC_VDD_340 21
|
|
#define MMC_VDD_350 22
|
|
#define MMC_VDD_360 23
|
|
|
|
unsigned char bus_mode; /* command output mode */
|
|
|
|
#define MMC_BUSMODE_OPENDRAIN 1
|
|
#define MMC_BUSMODE_PUSHPULL 2
|
|
|
|
unsigned char chip_select; /* SPI chip select */
|
|
|
|
#define MMC_CS_DONTCARE 0
|
|
#define MMC_CS_HIGH 1
|
|
#define MMC_CS_LOW 2
|
|
|
|
unsigned char power_mode; /* power supply mode */
|
|
|
|
#define MMC_POWER_OFF 0
|
|
#define MMC_POWER_UP 1
|
|
#define MMC_POWER_ON 2
|
|
|
|
unsigned char bus_width; /* data bus width */
|
|
|
|
#define MMC_BUS_WIDTH_1 0
|
|
#define MMC_BUS_WIDTH_4 2
|
|
};
|
|
|
|
struct mmc_host_ops {
|
|
void (*request)(struct mmc_host *host, struct mmc_request *req);
|
|
void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
|
|
int (*get_ro)(struct mmc_host *host);
|
|
};
|
|
|
|
struct mmc_card;
|
|
struct device;
|
|
|
|
struct mmc_host {
|
|
struct device *dev;
|
|
struct class_device class_dev;
|
|
int index;
|
|
const struct mmc_host_ops *ops;
|
|
unsigned int f_min;
|
|
unsigned int f_max;
|
|
u32 ocr_avail;
|
|
|
|
unsigned long caps; /* Host capabilities */
|
|
|
|
#define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */
|
|
|
|
/* host specific block data */
|
|
unsigned int max_seg_size; /* see blk_queue_max_segment_size */
|
|
unsigned short max_hw_segs; /* see blk_queue_max_hw_segments */
|
|
unsigned short max_phys_segs; /* see blk_queue_max_phys_segments */
|
|
unsigned short max_sectors; /* see blk_queue_max_sectors */
|
|
unsigned short unused;
|
|
|
|
/* private data */
|
|
struct mmc_ios ios; /* current io bus settings */
|
|
u32 ocr; /* the current OCR setting */
|
|
|
|
unsigned int mode; /* current card mode of host */
|
|
#define MMC_MODE_MMC 0
|
|
#define MMC_MODE_SD 1
|
|
|
|
struct list_head cards; /* devices attached to this host */
|
|
|
|
wait_queue_head_t wq;
|
|
spinlock_t lock; /* card_busy lock */
|
|
struct mmc_card *card_busy; /* the MMC card claiming host */
|
|
struct mmc_card *card_selected; /* the selected MMC card */
|
|
|
|
struct work_struct detect;
|
|
|
|
unsigned long private[0] ____cacheline_aligned;
|
|
};
|
|
|
|
extern struct mmc_host *mmc_alloc_host(int extra, struct device *);
|
|
extern int mmc_add_host(struct mmc_host *);
|
|
extern void mmc_remove_host(struct mmc_host *);
|
|
extern void mmc_free_host(struct mmc_host *);
|
|
|
|
static inline void *mmc_priv(struct mmc_host *host)
|
|
{
|
|
return (void *)host->private;
|
|
}
|
|
|
|
#define mmc_dev(x) ((x)->dev)
|
|
#define mmc_hostname(x) ((x)->class_dev.class_id)
|
|
|
|
extern int mmc_suspend_host(struct mmc_host *, pm_message_t);
|
|
extern int mmc_resume_host(struct mmc_host *);
|
|
|
|
extern void mmc_detect_change(struct mmc_host *, unsigned long delay);
|
|
extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
|
|
|
|
#endif
|
|
|