sdio_func.h (5610B)
1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * include/linux/mmc/sdio_func.h 4 * 5 * Copyright 2007-2008 Pierre Ossman 6 */ 7 8#ifndef LINUX_MMC_SDIO_FUNC_H 9#define LINUX_MMC_SDIO_FUNC_H 10 11#include <linux/device.h> 12#include <linux/mod_devicetable.h> 13 14#include <linux/mmc/pm.h> 15 16struct mmc_card; 17struct sdio_func; 18 19typedef void (sdio_irq_handler_t)(struct sdio_func *); 20 21/* 22 * SDIO function CIS tuple (unknown to the core) 23 */ 24struct sdio_func_tuple { 25 struct sdio_func_tuple *next; 26 unsigned char code; 27 unsigned char size; 28 unsigned char data[]; 29}; 30 31/* 32 * SDIO function devices 33 */ 34struct sdio_func { 35 struct mmc_card *card; /* the card this device belongs to */ 36 struct device dev; /* the device */ 37 sdio_irq_handler_t *irq_handler; /* IRQ callback */ 38 unsigned int num; /* function number */ 39 40 unsigned char class; /* standard interface class */ 41 unsigned short vendor; /* vendor id */ 42 unsigned short device; /* device id */ 43 44 unsigned max_blksize; /* maximum block size */ 45 unsigned cur_blksize; /* current block size */ 46 47 unsigned enable_timeout; /* max enable timeout in msec */ 48 49 unsigned int state; /* function state */ 50#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */ 51 52 u8 *tmpbuf; /* DMA:able scratch buffer */ 53 54 u8 major_rev; /* major revision number */ 55 u8 minor_rev; /* minor revision number */ 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) (dev_name(&(f)->dev)) 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#define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev) 71 72/* 73 * SDIO function device driver 74 */ 75struct sdio_driver { 76 char *name; 77 const struct sdio_device_id *id_table; 78 79 int (*probe)(struct sdio_func *, const struct sdio_device_id *); 80 void (*remove)(struct sdio_func *); 81 82 struct device_driver drv; 83}; 84 85/** 86 * SDIO_DEVICE - macro used to describe a specific SDIO device 87 * @vend: the 16 bit manufacturer code 88 * @dev: the 16 bit function id 89 * 90 * This macro is used to create a struct sdio_device_id that matches a 91 * specific device. The class field will be set to SDIO_ANY_ID. 92 */ 93#define SDIO_DEVICE(vend,dev) \ 94 .class = SDIO_ANY_ID, \ 95 .vendor = (vend), .device = (dev) 96 97/** 98 * SDIO_DEVICE_CLASS - macro used to describe a specific SDIO device class 99 * @dev_class: the 8 bit standard interface code 100 * 101 * This macro is used to create a struct sdio_device_id that matches a 102 * specific standard SDIO function type. The vendor and device fields will 103 * be set to SDIO_ANY_ID. 104 */ 105#define SDIO_DEVICE_CLASS(dev_class) \ 106 .class = (dev_class), \ 107 .vendor = SDIO_ANY_ID, .device = SDIO_ANY_ID 108 109extern int sdio_register_driver(struct sdio_driver *); 110extern void sdio_unregister_driver(struct sdio_driver *); 111 112/** 113 * module_sdio_driver() - Helper macro for registering a SDIO driver 114 * @__sdio_driver: sdio_driver struct 115 * 116 * Helper macro for SDIO drivers which do not do anything special in module 117 * init/exit. This eliminates a lot of boilerplate. Each module may only 118 * use this macro once, and calling it replaces module_init() and module_exit() 119 */ 120#define module_sdio_driver(__sdio_driver) \ 121 module_driver(__sdio_driver, sdio_register_driver, \ 122 sdio_unregister_driver) 123 124/* 125 * SDIO I/O operations 126 */ 127extern void sdio_claim_host(struct sdio_func *func); 128extern void sdio_release_host(struct sdio_func *func); 129 130extern int sdio_enable_func(struct sdio_func *func); 131extern int sdio_disable_func(struct sdio_func *func); 132 133extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz); 134 135extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler); 136extern int sdio_release_irq(struct sdio_func *func); 137 138extern unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz); 139 140extern u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret); 141extern u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret); 142extern u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret); 143 144extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst, 145 unsigned int addr, int count); 146extern int sdio_readsb(struct sdio_func *func, void *dst, 147 unsigned int addr, int count); 148 149extern void sdio_writeb(struct sdio_func *func, u8 b, 150 unsigned int addr, int *err_ret); 151extern void sdio_writew(struct sdio_func *func, u16 b, 152 unsigned int addr, int *err_ret); 153extern void sdio_writel(struct sdio_func *func, u32 b, 154 unsigned int addr, int *err_ret); 155 156extern u8 sdio_writeb_readb(struct sdio_func *func, u8 write_byte, 157 unsigned int addr, int *err_ret); 158 159extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr, 160 void *src, int count); 161extern int sdio_writesb(struct sdio_func *func, unsigned int addr, 162 void *src, int count); 163 164extern unsigned char sdio_f0_readb(struct sdio_func *func, 165 unsigned int addr, int *err_ret); 166extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b, 167 unsigned int addr, int *err_ret); 168 169extern mmc_pm_flag_t sdio_get_host_pm_caps(struct sdio_func *func); 170extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags); 171 172extern void sdio_retune_crc_disable(struct sdio_func *func); 173extern void sdio_retune_crc_enable(struct sdio_func *func); 174 175extern void sdio_retune_hold_now(struct sdio_func *func); 176extern void sdio_retune_release(struct sdio_func *func); 177 178#endif /* LINUX_MMC_SDIO_FUNC_H */