aboutsummaryrefslogtreecommitdiff
path: root/include/pcmcia/ds.h
blob: 0577e5f10304bc80fe171ab3d92913003b8616b8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
/*
 * ds.h -- 16-bit PCMCIA core support
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * The initial developer of the original code is David A. Hinds
 * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
 * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
 *
 * (C) 1999		David A. Hinds
 * (C) 2003 - 2008	Dominik Brodowski
 */

#ifndef _LINUX_DS_H
#define _LINUX_DS_H

#ifdef __KERNEL__
#include <linux/mod_devicetable.h>
#endif

#include <pcmcia/device_id.h>

#ifdef __KERNEL__
#include <linux/device.h>
#include <linux/interrupt.h>
#include <pcmcia/ss.h>
#include <asm/atomic.h>


/*
 * PCMCIA device drivers (16-bit cards only; 32-bit cards require CardBus
 * a.k.a. PCI drivers
 */
struct pcmcia_socket;
struct pcmcia_device;
struct config_t;
struct net_device;

/* dynamic device IDs for PCMCIA device drivers. See
 * Documentation/pcmcia/driver.txt for details.
*/
struct pcmcia_dynids {
	struct mutex		lock;
	struct list_head	list;
};

struct pcmcia_driver {
	int (*probe)		(struct pcmcia_device *dev);
	void (*remove)		(struct pcmcia_device *dev);

	int (*suspend)		(struct pcmcia_device *dev);
	int (*resume)		(struct pcmcia_device *dev);

	struct module		*owner;
	struct pcmcia_device_id	*id_table;
	struct device_driver	drv;
	struct pcmcia_dynids	dynids;
};

/* driver registration */
int pcmcia_register_driver(struct pcmcia_driver *driver);
void pcmcia_unregister_driver(struct pcmcia_driver *driver);

/* for struct resource * array embedded in struct pcmcia_device */
enum {
	PCMCIA_IOPORT_0,
	PCMCIA_IOPORT_1,
	PCMCIA_IOMEM_0,
	PCMCIA_IOMEM_1,
	PCMCIA_IOMEM_2,
	PCMCIA_IOMEM_3,
	PCMCIA_NUM_RESOURCES,
};

struct pcmcia_device {
	/* the socket and the device_no [for multifunction devices]
	   uniquely define a pcmcia_device */
	struct pcmcia_socket	*socket;

	char			*devname;

	u8			device_no;

	/* the hardware "function" device; certain subdevices can
	 * share one hardware "function" device. */
	u8			func;
	struct config_t		*function_config;

	struct list_head	socket_device_list;

	/* device setup */
	unsigned int		irq;
	struct resource		*resource[PCMCIA_NUM_RESOURCES];
	unsigned int		vpp;

	unsigned int		config_flags;	/* CONF_ENABLE_ flags below */
	unsigned int		config_base;
	unsigned int		config_index;
	unsigned int		config_regs;	/* PRESENT_ flags below */
	unsigned int		io_lines;	/* number of I/O lines */

	/* Is the device suspended? */
	u16			suspended:1;

	/* Flags whether io, irq, win configurations were
	 * requested, and whether the configuration is "locked" */
	u16			_irq:1;
	u16			_io:1;
	u16			_win:4;
	u16			_locked:1;

	/* Flag whether a "fuzzy" func_id based match is
	 * allowed. */
	u16			allow_func_id_match:1;

	/* information about this device */
	u16			has_manf_id:1;
	u16			has_card_id:1;
	u16			has_func_id:1;

	u16			reserved:4;

	u8			func_id;
	u16			manf_id;
	u16			card_id;

	char			*prod_id[4];

	u64			dma_mask;
	struct device		dev;

	/* data private to drivers */
	void			*priv;
	unsigned int		open;
};

#define to_pcmcia_dev(n) container_of(n, struct pcmcia_device, dev)
#define to_pcmcia_drv(n) container_of(n, struct pcmcia_driver, drv)


/*
 * CIS access.
 *
 * Please use the following functions to access CIS tuples:
 * - pcmcia_get_tuple()
 * - pcmcia_loop_tuple()
 * - pcmcia_get_mac_from_cis()
 *
 * To parse a tuple_t, pcmcia_parse_tuple() exists. Its interface
 * might change in future.
 */

/* get the very first CIS entry of type @code. Note that buf is pointer
 * to u8 *buf; and that you need to kfree(buf) afterwards. */
size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
			u8 **buf);

/* loop over CIS entries */
int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
		      int (*loop_tuple) (struct pcmcia_device *p_dev,
					 tuple_t *tuple,
					 void *priv_data),
		      void *priv_data);

/* get the MAC address from CISTPL_FUNCE */
int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev,
			    struct net_device *dev);


/* parse a tuple_t */
int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse);

/* loop CIS entries for valid configuration */
int pcmcia_loop_config(struct pcmcia_device *p_dev,
		       int	(*conf_check)	(struct pcmcia_device *p_dev,
						 cistpl_cftable_entry_t *cf,
						 cistpl_cftable_entry_t *dflt,
						 void *priv_data),
		       void *priv_data);

/* is the device still there? */
struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *p_dev);

/* low-level interface reset */
int pcmcia_reset_card(struct pcmcia_socket *skt);

/* CIS config */
int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val);
int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val);

/* device configuration */
int pcmcia_request_io(struct pcmcia_device *p_dev);

int __must_check
__pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
				irq_handler_t handler);
static inline __must_check __deprecated int
pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
				irq_handler_t handler)
{
	return __pcmcia_request_exclusive_irq(p_dev, handler);
}

int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
				irq_handler_t handler);

int pcmcia_enable_device(struct pcmcia_device *p_dev);

int pcmcia_request_window(struct pcmcia_device *p_dev, struct resource *res,
			unsigned int speed);
int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res);
int pcmcia_map_mem_page(struct pcmcia_device *p_dev, struct resource *res,
			unsigned int offset);

int pcmcia_fixup_vpp(struct pcmcia_device *p_dev, unsigned char new_vpp);
int pcmcia_fixup_iowidth(struct pcmcia_device *p_dev);

void pcmcia_disable_device(struct pcmcia_device *p_dev);

/* IO ports */
#define IO_DATA_PATH_WIDTH	0x18
#define IO_DATA_PATH_WIDTH_8	0x00
#define IO_DATA_PATH_WIDTH_16	0x08
#define IO_DATA_PATH_WIDTH_AUTO	0x10

/* convert flag found in cfgtable to data path width parameter */
static inline int pcmcia_io_cfg_data_width(unsigned int flags)
{
	if (!(flags & CISTPL_IO_8BIT))
		return IO_DATA_PATH_WIDTH_16;
	if (!(flags & CISTPL_IO_16BIT))
		return IO_DATA_PATH_WIDTH_8;
	return IO_DATA_PATH_WIDTH_AUTO;
}

/* IO memory */
#define WIN_MEMORY_TYPE_CM	0x00 /* default */
#define WIN_MEMORY_TYPE_AM	0x20 /* MAP_ATTRIB */
#define WIN_DATA_WIDTH_8	0x00 /* default */
#define WIN_DATA_WIDTH_16	0x02 /* MAP_16BIT */
#define WIN_ENABLE		0x01 /* MAP_ACTIVE */
#define WIN_USE_WAIT		0x40 /* MAP_USE_WAIT */

#define WIN_FLAGS_MAP		0x63 /* MAP_ATTRIB | MAP_16BIT | MAP_ACTIVE |
					MAP_USE_WAIT */
#define WIN_FLAGS_REQ		0x1c /* mapping to socket->win[i]:
					0x04 -> 0
					0x08 -> 1
					0x0c -> 2
					0x10 -> 3 */

/* config_reg{ister}s present for this PCMCIA device */
#define PRESENT_OPTION		0x001
#define PRESENT_STATUS		0x002
#define PRESENT_PIN_REPLACE	0x004
#define PRESENT_COPY		0x008
#define PRESENT_EXT_STATUS	0x010
#define PRESENT_IOBASE_0	0x020
#define PRESENT_IOBASE_1	0x040
#define PRESENT_IOBASE_2	0x080
#define PRESENT_IOBASE_3	0x100
#define PRESENT_IOSIZE		0x200

/* flags to be passed to pcmcia_enable_device() */
#define CONF_ENABLE_IRQ         0x01
#define CONF_ENABLE_SPKR        0x02
#define CONF_ENABLE_PULSE_IRQ   0x04
#define CONF_ENABLE_ESR         0x08

/* flags used by pcmcia_loop_config() autoconfiguration */
#define CONF_AUTO_CHECK_VCC	0x10 /* check for matching Vcc? */
#define CONF_AUTO_SET_VPP	0x20 /* set Vpp? */
#define CONF_AUTO_AUDIO		0x40 /* enable audio line? */


#endif /* __KERNEL__ */

#endif /* _LINUX_DS_H */