git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/include/linux/mmc/host.h | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License version 2 as | |
| 6 | * published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * Host driver specific definitions. | |
| 9 | */ | |
| 10 | #ifndef LINUX_MMC_HOST_H | |
| 11 | #define LINUX_MMC_HOST_H | |
| 12 | ||
| 13 | #include <linux/mmc/mmc.h> | |
| 14 | ||
| 15 | struct mmc_ios { | |
| 16 | unsigned int clock; /* clock rate */ | |
| 17 | unsigned short vdd; | |
| 18 | ||
| 19 | #define MMC_VDD_150 0 | |
| 20 | #define MMC_VDD_155 1 | |
| 21 | #define MMC_VDD_160 2 | |
| 22 | #define MMC_VDD_165 3 | |
| 23 | #define MMC_VDD_170 4 | |
| 24 | #define MMC_VDD_180 5 | |
| 25 | #define MMC_VDD_190 6 | |
| 26 | #define MMC_VDD_200 7 | |
| 27 | #define MMC_VDD_210 8 | |
| 28 | #define MMC_VDD_220 9 | |
| 29 | #define MMC_VDD_230 10 | |
| 30 | #define MMC_VDD_240 11 | |
| 31 | #define MMC_VDD_250 12 | |
| 32 | #define MMC_VDD_260 13 | |
| 33 | #define MMC_VDD_270 14 | |
| 34 | #define MMC_VDD_280 15 | |
| 35 | #define MMC_VDD_290 16 | |
| 36 | #define MMC_VDD_300 17 | |
| 37 | #define MMC_VDD_310 18 | |
| 38 | #define MMC_VDD_320 19 | |
| 39 | #define MMC_VDD_330 20 | |
| 40 | #define MMC_VDD_340 21 | |
| 41 | #define MMC_VDD_350 22 | |
| 42 | #define MMC_VDD_360 23 | |
| 43 | ||
| 44 | unsigned char bus_mode; /* command output mode */ | |
| 45 | ||
| 46 | #define MMC_BUSMODE_OPENDRAIN 1 | |
| 47 | #define MMC_BUSMODE_PUSHPULL 2 | |
| 48 | ||
| 865e9f13 PO |
49 | unsigned char chip_select; /* SPI chip select */ |
| 50 | ||
| 51 | #define MMC_CS_DONTCARE 0 | |
| 52 | #define MMC_CS_HIGH 1 | |
| 53 | #define MMC_CS_LOW 2 | |
| 54 | ||
| 1da177e4 LT |
55 | unsigned char power_mode; /* power supply mode */ |
| 56 | ||
| 57 | #define MMC_POWER_OFF 0 | |
| 58 | #define MMC_POWER_UP 1 | |
| 59 | #define MMC_POWER_ON 2 | |
| f218278a PO |
60 | |
| 61 | unsigned char bus_width; /* data bus width */ | |
| 62 | ||
| 63 | #define MMC_BUS_WIDTH_1 0 | |
| 64 | #define MMC_BUS_WIDTH_4 2 | |
| 1da177e4 LT |
65 | }; |
| 66 | ||
| 67 | struct mmc_host_ops { | |
| 68 | void (*request)(struct mmc_host *host, struct mmc_request *req); | |
| 69 | void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios); | |
| a00fc090 | 70 | int (*get_ro)(struct mmc_host *host); |
| 1da177e4 LT |
71 | }; |
| 72 | ||
| 73 | struct mmc_card; | |
| 74 | struct device; | |
| 75 | ||
| 76 | struct mmc_host { | |
| 77 | struct device *dev; | |
| 00b137cf | 78 | struct class_device class_dev; |
| dce77377 | 79 | int index; |
| 1da177e4 LT |
80 | struct mmc_host_ops *ops; |
| 81 | unsigned int f_min; | |
| 82 | unsigned int f_max; | |
| 83 | u32 ocr_avail; | |
| 1da177e4 | 84 | |
| f218278a PO |
85 | unsigned long caps; /* Host capabilities */ |
| 86 | ||
| 87 | #define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */ | |
| 88 | ||
| 1da177e4 LT |
89 | /* host specific block data */ |
| 90 | unsigned int max_seg_size; /* see blk_queue_max_segment_size */ | |
| 91 | unsigned short max_hw_segs; /* see blk_queue_max_hw_segments */ | |
| 92 | unsigned short max_phys_segs; /* see blk_queue_max_phys_segments */ | |
| 93 | unsigned short max_sectors; /* see blk_queue_max_sectors */ | |
| 94 | unsigned short unused; | |
| 95 | ||
| 96 | /* private data */ | |
| 97 | struct mmc_ios ios; /* current io bus settings */ | |
| 98 | u32 ocr; /* the current OCR setting */ | |
| 99 | ||
| 335eadf2 PO |
100 | unsigned int mode; /* current card mode of host */ |
| 101 | #define MMC_MODE_MMC 0 | |
| 102 | #define MMC_MODE_SD 1 | |
| 103 | ||
| 1da177e4 LT |
104 | struct list_head cards; /* devices attached to this host */ |
| 105 | ||
| 106 | wait_queue_head_t wq; | |
| 107 | spinlock_t lock; /* card_busy lock */ | |
| 108 | struct mmc_card *card_busy; /* the MMC card claiming host */ | |
| 109 | struct mmc_card *card_selected; /* the selected MMC card */ | |
| 110 | ||
| 111 | struct work_struct detect; | |
| 112 | }; | |
| 113 | ||
| 114 | extern struct mmc_host *mmc_alloc_host(int extra, struct device *); | |
| 115 | extern int mmc_add_host(struct mmc_host *); | |
| 116 | extern void mmc_remove_host(struct mmc_host *); | |
| 117 | extern void mmc_free_host(struct mmc_host *); | |
| 118 | ||
| 119 | #define mmc_priv(x) ((void *)((x) + 1)) | |
| 120 | #define mmc_dev(x) ((x)->dev) | |
| 1ad434d7 | 121 | #define mmc_hostname(x) ((x)->class_dev.class_id) |
| 1da177e4 | 122 | |
| 3bfffd97 | 123 | extern int mmc_suspend_host(struct mmc_host *, pm_message_t); |
| 1da177e4 LT |
124 | extern int mmc_resume_host(struct mmc_host *); |
| 125 | ||
| 126 | extern void mmc_detect_change(struct mmc_host *); | |
| 127 | extern void mmc_request_done(struct mmc_host *, struct mmc_request *); | |
| 128 | ||
| 129 | #endif | |
| 130 |