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