1 /*
2 * cs_internal.h -- definitions internal to the PCMCIA core modules
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 * The initial developer of the original code is David A. Hinds
9 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
10 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
11 *
12 * (C) 1999 David A. Hinds
13 * (C) 2003 - 2008 Dominik Brodowski
14 *
15 *
16 * This file contains definitions _only_ needed by the PCMCIA core modules.
17 * It must not be included by PCMCIA socket drivers or by PCMCIA device
18 * drivers.
19 */
20
21 #ifndef _LINUX_CS_INTERNAL_H
22 #define _LINUX_CS_INTERNAL_H
23
24 #include <linux/kref.h>
25
26 /* Flags in client state */
27 #define CLIENT_WIN_REQ(i) (0x1<<(i))
28
29 /* Each card function gets one of these guys */
30 typedef struct config_t {
31 struct kref ref;
32 unsigned int state;
33 unsigned int Attributes;
34 unsigned int IntType;
35 unsigned int ConfigBase;
36 unsigned char Status, Pin, Copy, Option, ExtStatus;
37 unsigned int CardValues;
38 io_req_t io;
39 struct {
40 u_int Attributes;
41 } irq;
42 } config_t;
43
44
45 struct cis_cache_entry {
46 struct list_head node;
47 unsigned int addr;
48 unsigned int len;
49 unsigned int attr;
50 unsigned char cache[0];
51 };
52
53 struct pccard_resource_ops {
54 int (*validate_mem) (struct pcmcia_socket *s);
55 int (*adjust_io_region) (struct resource *res,
56 unsigned long r_start,
57 unsigned long r_end,
58 struct pcmcia_socket *s);
59 struct resource* (*find_io) (unsigned long base, int num,
60 unsigned long align,
61 struct pcmcia_socket *s);
62 struct resource* (*find_mem) (unsigned long base, unsigned long num,
63 unsigned long align, int low,
64 struct pcmcia_socket *s);
65 int (*add_io) (struct pcmcia_socket *s,
66 unsigned int action,
67 unsigned long r_start,
68 unsigned long r_end);
69 int (*add_mem) (struct pcmcia_socket *s,
70 unsigned int action,
71 unsigned long r_start,
72 unsigned long r_end);
73 int (*init) (struct pcmcia_socket *s);
74 void (*exit) (struct pcmcia_socket *s);
75 };
76
77 /* Flags in config state */
78 #define CONFIG_LOCKED 0x01
79 #define CONFIG_IRQ_REQ 0x02
80 #define CONFIG_IO_REQ 0x04
81
82 /* Flags in socket state */
83 #define SOCKET_PRESENT 0x0008
84 #define SOCKET_INUSE 0x0010
85 #define SOCKET_SUSPEND 0x0080
86 #define SOCKET_WIN_REQ(i) (0x0100<<(i))
87 #define SOCKET_CARDBUS 0x8000
88 #define SOCKET_CARDBUS_CONFIG 0x10000
89
90 static inline int cs_socket_get(struct pcmcia_socket *skt)
91 {
92 int ret;
93
94 WARN_ON(skt->state & SOCKET_INUSE);
95
96 ret = try_module_get(skt->owner);
97 if (ret)
98 skt->state |= SOCKET_INUSE;
99 return ret;
100 }
101
102 static inline void cs_socket_put(struct pcmcia_socket *skt)
103 {
104 if (skt->state & SOCKET_INUSE) {
105 skt->state &= ~SOCKET_INUSE;
106 module_put(skt->owner);
107 }
108 }
109
110 #ifdef CONFIG_PCMCIA_DEBUG
111 extern int cs_debug_level(int);
112
113 #define cs_dbg(skt, lvl, fmt, arg...) do { \
114 if (cs_debug_level(lvl)) \
115 dev_printk(KERN_DEBUG, &skt->dev, \
116 "cs: " fmt, ## arg); \
117 } while (0)
118 #define __cs_dbg(lvl, fmt, arg...) do { \
119 if (cs_debug_level(lvl)) \
120 printk(KERN_DEBUG \
121 "cs: " fmt, ## arg); \
122 } while (0)
123
124 #else
125 #define cs_dbg(skt, lvl, fmt, arg...) do { } while (0)
126 #define __cs_dbg(lvl, fmt, arg...) do { } while (0)
127 #endif
128
129 #define cs_err(skt, fmt, arg...) \
130 dev_printk(KERN_ERR, &skt->dev, "cs: " fmt, ## arg)
131
132
133 /*
134 * Stuff internal to module "pcmcia_core":
135 */
136
137 /* cistpl.c */
138 int verify_cis_cache(struct pcmcia_socket *s);
139
140 /* rsrc_mgr.c */
141 void release_resource_db(struct pcmcia_socket *s);
142
143 /* socket_sysfs.c */
144 extern int pccard_sysfs_add_socket(struct device *dev);
145 extern void pccard_sysfs_remove_socket(struct device *dev);
146
147 /* cardbus.c */
148 int cb_alloc(struct pcmcia_socket *s);
149 void cb_free(struct pcmcia_socket *s);
150 int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len,
151 void *ptr);
152
153
154
155 /*
156 * Stuff exported by module "pcmcia_core" to module "pcmcia"
157 */
158
159 struct pcmcia_callback{
160 struct module *owner;
161 int (*event) (struct pcmcia_socket *s,
162 event_t event, int priority);
163 void (*requery) (struct pcmcia_socket *s, int new_cis);
164 int (*suspend) (struct pcmcia_socket *s);
165 int (*resume) (struct pcmcia_socket *s);
166 };
167
168 /* cs.c */
169 extern struct rw_semaphore pcmcia_socket_list_rwsem;
170 extern struct list_head pcmcia_socket_list;
171 extern struct class pcmcia_socket_class;
172
173 int pcmcia_get_window(struct pcmcia_socket *s,
174 window_handle_t *handle,
175 int idx,
176 win_req_t *req);
177 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
178 struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr);
179
180 int pcmcia_suspend_card(struct pcmcia_socket *skt);
181 int pcmcia_resume_card(struct pcmcia_socket *skt);
182
183 int pcmcia_eject_card(struct pcmcia_socket *skt);
184 int pcmcia_insert_card(struct pcmcia_socket *skt);
185
186 struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt);
187 void pcmcia_put_socket(struct pcmcia_socket *skt);
188
189 /* cistpl.c */
190 int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
191 u_int addr, u_int len, void *ptr);
192 void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
193 u_int addr, u_int len, void *ptr);
194 void release_cis_mem(struct pcmcia_socket *s);
195 void destroy_cis_cache(struct pcmcia_socket *s);
196 int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
197 cisdata_t code, void *parse);
198 int pcmcia_replace_cis(struct pcmcia_socket *s,
199 const u8 *data, const size_t len);
200 int pccard_validate_cis(struct pcmcia_socket *s, unsigned int function,
201 unsigned int *count);
202
203 /* rsrc_mgr.c */
204 int pcmcia_validate_mem(struct pcmcia_socket *s);
205 struct resource *pcmcia_find_io_region(unsigned long base,
206 int num,
207 unsigned long align,
208 struct pcmcia_socket *s);
209 int pcmcia_adjust_io_region(struct resource *res,
210 unsigned long r_start,
211 unsigned long r_end,
212 struct pcmcia_socket *s);
213 struct resource *pcmcia_find_mem_region(u_long base,
214 u_long num,
215 u_long align,
216 int low,
217 struct pcmcia_socket *s);
218
219 /*
220 * Stuff internal to module "pcmcia".
221 */
222 /* ds.c */
223 extern struct bus_type pcmcia_bus_type;
224
225 /* pcmcia_resource.c */
226 extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
227
228 #ifdef CONFIG_PCMCIA_IOCTL
229 /* ds.c */
230 extern spinlock_t pcmcia_dev_list_lock;
231
232 extern struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev);
233 extern void pcmcia_put_dev(struct pcmcia_device *p_dev);
234
235 struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s,
236 unsigned int function);
237
238 /* pcmcia_ioctl.c */
239 extern void __init pcmcia_setup_ioctl(void);
240 extern void __exit pcmcia_cleanup_ioctl(void);
241 extern void handle_event(struct pcmcia_socket *s, event_t event);
242 extern int handle_request(struct pcmcia_socket *s, event_t event);
243
244 #else /* CONFIG_PCMCIA_IOCTL */
245
246 static inline void __init pcmcia_setup_ioctl(void) { return; }
247 static inline void __exit pcmcia_cleanup_ioctl(void) { return; }
248 static inline void handle_event(struct pcmcia_socket *s, event_t event)
249 {
250 return;
251 }
252 static inline int handle_request(struct pcmcia_socket *s, event_t event)
253 {
254 return 0;
255 }
256
257 #endif /* CONFIG_PCMCIA_IOCTL */
258
259 #endif /* _LINUX_CS_INTERNAL_H */
260
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