| /* |
| * 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 *parent; |
| struct 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 */ |
| #define MMC_CAP_MULTIWRITE (1 << 1) /* Can accurately report bytes sent to card on error */ |
| #define MMC_CAP_BYTEBLOCK (1 << 2) /* Can do non-log2 block sizes */ |
| |
| /* 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; /* claimed lock */ |
| unsigned int claimed:1; /* host exclusively claimed */ |
| |
| struct mmc_card *card_selected; /* the selected MMC card */ |
| |
| struct delayed_work 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)->parent) |
| #define mmc_hostname(x) ((x)->class_dev.bus_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 |
| |