1 /* 2 * linux/include/linux/mmc/card.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 * Card driver specific definitions. 9 */ 10 #ifndef LINUX_MMC_CARD_H 11 #define LINUX_MMC_CARD_H 12 13 #include <linux/mmc/mmc.h> 14 15 struct mmc_cid { 16 unsigned int manfid; 17 char prod_name[8]; 18 unsigned int serial; 19 unsigned short oemid; 20 unsigned short year; 21 unsigned char hwrev; 22 unsigned char fwrev; 23 unsigned char month; 24 }; 25 26 struct mmc_csd { 27 unsigned char mmca_vsn; 28 unsigned short cmdclass; 29 unsigned short tacc_clks; 30 unsigned int tacc_ns; 31 unsigned int r2w_factor; 32 unsigned int max_dtr; 33 unsigned int read_blkbits; 34 unsigned int write_blkbits; 35 unsigned int capacity; 36 unsigned int read_partial:1, 37 read_misalign:1, 38 write_partial:1, 39 write_misalign:1; 40 }; 41 42 struct sd_scr { 43 unsigned char sda_vsn; 44 unsigned char bus_widths; 45 #define SD_SCR_BUS_WIDTH_1 (1<<0) 46 #define SD_SCR_BUS_WIDTH_4 (1<<2) 47 }; 48 49 struct mmc_host; 50 51 /* 52 * MMC device 53 */ 54 struct mmc_card { 55 struct list_head node; /* node in hosts devices list */ 56 struct mmc_host *host; /* the host this device belongs to */ 57 struct device dev; /* the device */ 58 unsigned int rca; /* relative card address of device */ 59 unsigned int state; /* (our) card state */ 60 #define MMC_STATE_PRESENT (1<<0) /* present in sysfs */ 61 #define MMC_STATE_DEAD (1<<1) /* device no longer in stack */ 62 #define MMC_STATE_BAD (1<<2) /* unrecognised device */ 63 #define MMC_STATE_SDCARD (1<<3) /* is an SD card */ 64 #define MMC_STATE_READONLY (1<<4) /* card is read-only */ 65 u32 raw_cid[4]; /* raw card CID */ 66 u32 raw_csd[4]; /* raw card CSD */ 67 u32 raw_scr[2]; /* raw card SCR */ 68 struct mmc_cid cid; /* card identification */ 69 struct mmc_csd csd; /* card specific */ 70 struct sd_scr scr; /* extra SD information */ 71 }; 72 73 #define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT) 74 #define mmc_card_dead(c) ((c)->state & MMC_STATE_DEAD) 75 #define mmc_card_bad(c) ((c)->state & MMC_STATE_BAD) 76 #define mmc_card_sd(c) ((c)->state & MMC_STATE_SDCARD) 77 #define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY) 78 79 #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT) 80 #define mmc_card_set_dead(c) ((c)->state |= MMC_STATE_DEAD) 81 #define mmc_card_set_bad(c) ((c)->state |= MMC_STATE_BAD) 82 #define mmc_card_set_sd(c) ((c)->state |= MMC_STATE_SDCARD) 83 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY) 84 85 #define mmc_card_name(c) ((c)->cid.prod_name) 86 #define mmc_card_id(c) ((c)->dev.bus_id) 87 88 #define mmc_list_to_card(l) container_of(l, struct mmc_card, node) 89 #define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev) 90 #define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d) 91 92 /* 93 * MMC device driver (e.g., Flash card, I/O card...) 94 */ 95 struct mmc_driver { 96 struct device_driver drv; 97 int (*probe)(struct mmc_card *); 98 void (*remove)(struct mmc_card *); 99 int (*suspend)(struct mmc_card *, pm_message_t); 100 int (*resume)(struct mmc_card *); 101 }; 102 103 extern int mmc_register_driver(struct mmc_driver *); 104 extern void mmc_unregister_driver(struct mmc_driver *); 105 106 static inline int mmc_card_claim_host(struct mmc_card *card) 107 { 108 return __mmc_claim_host(card->host, card); 109 } 110 111 #define mmc_card_release_host(c) mmc_release_host((c)->host) 112 113 #endif 114
