1 /* 2 * include/linux/mmc/sdio_func.h 3 * 4 * Copyright 2007-2008 Pierre Ossman 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or (at 9 * your option) any later version. 10 */ 11 12 #ifndef MMC_SDIO_FUNC_H 13 #define MMC_SDIO_FUNC_H 14 15 #include <linux/device.h> 16 #include <linux/mod_devicetable.h> 17 18 struct mmc_card; 19 struct sdio_func; 20 21 typedef void (sdio_irq_handler_t)(struct sdio_func *); 22 23 /* 24 * SDIO function CIS tuple (unknown to the core) 25 */ 26 struct sdio_func_tuple { 27 struct sdio_func_tuple *next; 28 unsigned char code; 29 unsigned char size; 30 unsigned char data[0]; 31 }; 32 33 /* 34 * SDIO function devices 35 */ 36 struct sdio_func { 37 struct mmc_card *card; /* the card this device belongs to */ 38 struct device dev; /* the device */ 39 sdio_irq_handler_t *irq_handler; /* IRQ callback */ 40 unsigned int num; /* function number */ 41 42 unsigned char class; /* standard interface class */ 43 unsigned short vendor; /* vendor id */ 44 unsigned short device; /* device id */ 45 46 unsigned max_blksize; /* maximum block size */ 47 unsigned cur_blksize; /* current block size */ 48 49 unsigned enable_timeout; /* max enable timeout in msec */ 50 51 unsigned int state; /* function state */ 52 #define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */ 53 54 u8 tmpbuf[4]; /* DMA:able scratch buffer */ 55 56 unsigned num_info; /* number of info strings */ 57 const char **info; /* info strings */ 58 59 struct sdio_func_tuple *tuples; 60 }; 61 62 #define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT) 63 64 #define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT) 65 66 #define sdio_func_id(f) ((f)->dev.bus_id) 67 68 #define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev) 69 #define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d) 70 71 /* 72 * SDIO function device driver 73 */ 74 struct sdio_driver { 75 char *name; 76 const struct sdio_device_id *id_table; 77 78 int (*probe)(struct sdio_func *, const struct sdio_device_id *); 79 void (*remove)(struct sdio_func *); 80 81 struct device_driver drv; 82 }; 83 84 /** 85 * SDIO_DEVICE - macro used to describe a specific SDIO device 86 * @vend: the 16 bit manufacturer code 87 * @dev: the 16 bit function id 88 * 89 * This macro is used to create a struct sdio_device_id that matches a 90 * specific device. The class field will be set to SDIO_ANY_ID. 91 */ 92 #define SDIO_DEVICE(vend,dev) \ 93 .class = SDIO_ANY_ID, \ 94 .vendor = (vend), .device = (dev) 95 96 /** 97 * SDIO_DEVICE_CLASS - macro used to describe a specific SDIO device class 98 * @dev_class: the 8 bit standard interface code 99 * 100 * This macro is used to create a struct sdio_device_id that matches a 101 * specific standard SDIO function type. The vendor and device fields will 102 * be set to SDIO_ANY_ID. 103 */ 104 #define SDIO_DEVICE_CLASS(dev_class) \ 105 .class = (dev_class), \ 106 .vendor = SDIO_ANY_ID, .device = SDIO_ANY_ID 107 108 extern int sdio_register_driver(struct sdio_driver *); 109 extern void sdio_unregister_driver(struct sdio_driver *); 110 111 /* 112 * SDIO I/O operations 113 */ 114 extern void sdio_claim_host(struct sdio_func *func); 115 extern void sdio_release_host(struct sdio_func *func); 116 117 extern int sdio_enable_func(struct sdio_func *func); 118 extern int sdio_disable_func(struct sdio_func *func); 119 120 extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz); 121 122 extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler); 123 extern int sdio_release_irq(struct sdio_func *func); 124 125 extern unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz); 126 127 extern u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret); 128 extern u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret); 129 extern u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret); 130 131 extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst, 132 unsigned int addr, int count); 133 extern int sdio_readsb(struct sdio_func *func, void *dst, 134 unsigned int addr, int count); 135 136 extern void sdio_writeb(struct sdio_func *func, u8 b, 137 unsigned int addr, int *err_ret); 138 extern void sdio_writew(struct sdio_func *func, u16 b, 139 unsigned int addr, int *err_ret); 140 extern void sdio_writel(struct sdio_func *func, u32 b, 141 unsigned int addr, int *err_ret); 142 143 extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr, 144 void *src, int count); 145 extern int sdio_writesb(struct sdio_func *func, unsigned int addr, 146 void *src, int count); 147 148 extern unsigned char sdio_f0_readb(struct sdio_func *func, 149 unsigned int addr, int *err_ret); 150 extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b, 151 unsigned int addr, int *err_ret); 152 153 #endif 154 155