diff options
Diffstat (limited to 'include/linux/mmc/host.h')
| -rw-r--r-- | include/linux/mmc/host.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h new file mode 100644 index 000000000000..f67686cef62a --- /dev/null +++ b/include/linux/mmc/host.h @@ -0,0 +1,108 @@ +/* + * 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 power_mode; /* power supply mode */ + +#define MMC_POWER_OFF 0 +#define MMC_POWER_UP 1 +#define MMC_POWER_ON 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); +}; + +struct mmc_card; +struct device; + +struct mmc_host { + struct device *dev; + struct mmc_host_ops *ops; + unsigned int f_min; + unsigned int f_max; + u32 ocr_avail; + char host_name[8]; + + /* 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 */ + + 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; +}; + +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 *); + +#define mmc_priv(x) ((void *)((x) + 1)) +#define mmc_dev(x) ((x)->dev) + +extern int mmc_suspend_host(struct mmc_host *, u32); +extern int mmc_resume_host(struct mmc_host *); + +extern void mmc_detect_change(struct mmc_host *); +extern void mmc_request_done(struct mmc_host *, struct mmc_request *); + +#endif + |