2 * include/linux/mmc/sdio_func.h
4 * Copyright 2007-2008 Pierre Ossman
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.
12 #ifndef LINUX_MMC_SDIO_FUNC_H
13 #define LINUX_MMC_SDIO_FUNC_H
15 #include <linux/device.h>
16 #include <linux/mod_devicetable.h>
18 #include <linux/mmc/pm.h>
23 typedef void (sdio_irq_handler_t)(struct sdio_func *);
26 * Structure used to hold embedded SDIO device data from platform layer
28 struct sdio_embedded_func {
30 uint32_t f_maxblksize;
34 * SDIO function CIS tuple (unknown to the core)
36 struct sdio_func_tuple {
37 struct sdio_func_tuple *next;
40 unsigned char data[0];
44 * SDIO function devices
47 struct mmc_card *card; /* the card this device belongs to */
48 struct device dev; /* the device */
49 sdio_irq_handler_t *irq_handler; /* IRQ callback */
50 unsigned int num; /* function number */
52 unsigned char class; /* standard interface class */
53 unsigned short vendor; /* vendor id */
54 unsigned short device; /* device id */
56 unsigned max_blksize; /* maximum block size */
57 unsigned cur_blksize; /* current block size */
59 unsigned enable_timeout; /* max enable timeout in msec */
61 unsigned int state; /* function state */
62 #define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
64 u8 tmpbuf[4]; /* DMA:able scratch buffer */
66 unsigned num_info; /* number of info strings */
67 const char **info; /* info strings */
69 struct sdio_func_tuple *tuples;
72 #define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT)
74 #define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)
76 #define sdio_func_id(f) (dev_name(&(f)->dev))
78 #define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev)
79 #define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d)
80 #define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev)
83 * SDIO function device driver
87 const struct sdio_device_id *id_table;
89 int (*probe)(struct sdio_func *, const struct sdio_device_id *);
90 void (*remove)(struct sdio_func *);
92 struct device_driver drv;
96 * SDIO_DEVICE - macro used to describe a specific SDIO device
97 * @vend: the 16 bit manufacturer code
98 * @dev: the 16 bit function id
100 * This macro is used to create a struct sdio_device_id that matches a
101 * specific device. The class field will be set to SDIO_ANY_ID.
103 #define SDIO_DEVICE(vend,dev) \
104 .class = SDIO_ANY_ID, \
105 .vendor = (vend), .device = (dev)
108 * SDIO_DEVICE_CLASS - macro used to describe a specific SDIO device class
109 * @dev_class: the 8 bit standard interface code
111 * This macro is used to create a struct sdio_device_id that matches a
112 * specific standard SDIO function type. The vendor and device fields will
113 * be set to SDIO_ANY_ID.
115 #define SDIO_DEVICE_CLASS(dev_class) \
116 .class = (dev_class), \
117 .vendor = SDIO_ANY_ID, .device = SDIO_ANY_ID
119 extern int sdio_register_driver(struct sdio_driver *);
120 extern void sdio_unregister_driver(struct sdio_driver *);
123 * SDIO I/O operations
125 extern void sdio_claim_host(struct sdio_func *func);
126 extern void sdio_release_host(struct sdio_func *func);
128 extern int sdio_enable_func(struct sdio_func *func);
129 extern int sdio_disable_func(struct sdio_func *func);
131 extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz);
133 extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler);
134 extern int sdio_release_irq(struct sdio_func *func);
136 extern unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz);
138 extern u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret);
139 extern u8 sdio_readb_ext(struct sdio_func *func, unsigned int addr, int *err_ret,
141 extern u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret);
142 extern u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret);
144 extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst,
145 unsigned int addr, int count);
146 extern int sdio_readsb(struct sdio_func *func, void *dst,
147 unsigned int addr, int count);
149 extern void sdio_writeb(struct sdio_func *func, u8 b,
150 unsigned int addr, int *err_ret);
151 extern void sdio_writew(struct sdio_func *func, u16 b,
152 unsigned int addr, int *err_ret);
153 extern void sdio_writel(struct sdio_func *func, u32 b,
154 unsigned int addr, int *err_ret);
156 extern u8 sdio_writeb_readb(struct sdio_func *func, u8 write_byte,
157 unsigned int addr, int *err_ret);
159 extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr,
160 void *src, int count);
161 extern int sdio_writesb(struct sdio_func *func, unsigned int addr,
162 void *src, int count);
164 extern unsigned char sdio_f0_readb(struct sdio_func *func,
165 unsigned int addr, int *err_ret);
166 extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b,
167 unsigned int addr, int *err_ret);
169 extern mmc_pm_flag_t sdio_get_host_pm_caps(struct sdio_func *func);
170 extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags);
172 #endif /* LINUX_MMC_SDIO_FUNC_H */