1 /*
2 * cs_internal.h
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 */
14
15 #ifndef _LINUX_CS_INTERNAL_H
16 #define _LINUX_CS_INTERNAL_H
17
18 #include <linux/kref.h>
19
20 /* Flags in client state */
21 #define CLIENT_CONFIG_LOCKED 0x0001
22 #define CLIENT_IRQ_REQ 0x0002
23 #define CLIENT_IO_REQ 0x0004
24 #define CLIENT_UNBOUND 0x0008
25 #define CLIENT_STALE 0x0010
26 #define CLIENT_WIN_REQ(i) (0x1<<(i))
27 #define CLIENT_CARDBUS 0x8000
28
29 #define REGION_MAGIC 0xE3C9
30 typedef struct region_t {
31 u_short region_magic;
32 u_short state;
33 dev_info_t dev_info;
34 struct pcmcia_device *mtd;
35 u_int MediaID;
36 region_info_t info;
37 } region_t;
38
39 #define REGION_STALE 0x01
40
41 /* Each card function gets one of these guys */
42 typedef struct config_t {
43 struct kref ref;
44 u_int state;
45 u_int Attributes;
46 u_int IntType;
47 u_int ConfigBase;
48 u_char Status, Pin, Copy, Option, ExtStatus;
49 u_int CardValues;
50 io_req_t io;
51 struct {
52 u_int Attributes;
53 } irq;
54 } config_t;
55
56 struct cis_cache_entry {
57 struct list_head node;
58 unsigned int addr;
59 unsigned int len;
60 unsigned int attr;
61 unsigned char cache[0];
62 };
63
64 /* Flags in config state */
65 #define CONFIG_LOCKED 0x01
66 #define CONFIG_IRQ_REQ 0x02
67 #define CONFIG_IO_REQ 0x04
68
69 /* Flags in socket state */
70 #define SOCKET_PRESENT 0x0008
71 #define SOCKET_INUSE 0x0010
72 #define SOCKET_SUSPEND 0x0080
73 #define SOCKET_WIN_REQ(i) (0x0100<<(i))
74 #define SOCKET_REGION_INFO 0x4000
75 #define SOCKET_CARDBUS 0x8000
76 #define SOCKET_CARDBUS_CONFIG 0x10000
77
78 static inline int cs_socket_get(struct pcmcia_socket *skt)
79 {
80 int ret;
81
82 WARN_ON(skt->state & SOCKET_INUSE);
83
84 ret = try_module_get(skt->owner);
85 if (ret)
86 skt->state |= SOCKET_INUSE;
87 return ret;
88 }
89
90 static inline void cs_socket_put(struct pcmcia_socket *skt)
91 {
92 if (skt->state & SOCKET_INUSE) {
93 skt->state &= ~SOCKET_INUSE;
94 module_put(skt->owner);
95 }
96 }
97
98 /* In cardbus.c */
99 int cb_alloc(struct pcmcia_socket *s);
100 void cb_free(struct pcmcia_socket *s);
101 int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, void *ptr);
102
103 /* In cistpl.c */
104 int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
105 u_int addr, u_int len, void *ptr);
106 void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
107 u_int addr, u_int len, void *ptr);
108 void release_cis_mem(struct pcmcia_socket *s);
109 void destroy_cis_cache(struct pcmcia_socket *s);
110 int verify_cis_cache(struct pcmcia_socket *s);
111 int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t code, void *parse);
112
113 /* In rsrc_mgr */
114 int pcmcia_validate_mem(struct pcmcia_socket *s);
115 struct resource *pcmcia_find_io_region(unsigned long base, int num, unsigned long align,
116 struct pcmcia_socket *s);
117 int pcmcia_adjust_io_region(struct resource *res, unsigned long r_start,
118 unsigned long r_end, struct pcmcia_socket *s);
119 struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
120 int low, struct pcmcia_socket *s);
121 void release_resource_db(struct pcmcia_socket *s);
122
123 /* In socket_sysfs.c */
124 extern struct class_interface pccard_sysfs_interface;
125
126 /* In cs.c */
127 extern struct rw_semaphore pcmcia_socket_list_rwsem;
128 extern struct list_head pcmcia_socket_list;
129 int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, int idx, win_req_t *req);
130 int pccard_get_configuration_info(struct pcmcia_socket *s, struct pcmcia_device *p_dev, config_info_t *config);
131 int pccard_reset_card(struct pcmcia_socket *skt);
132 int pccard_get_status(struct pcmcia_socket *s, struct pcmcia_device *p_dev, cs_status_t *status);
133
134
135 struct pcmcia_callback{
136 struct module *owner;
137 int (*event) (struct pcmcia_socket *s, event_t event, int priority);
138 void (*requery) (struct pcmcia_socket *s, int new_cis);
139 int (*suspend) (struct pcmcia_socket *s);
140 int (*resume) (struct pcmcia_socket *s);
141 };
142
143 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
144
145 #define cs_socket_name(skt) ((skt)->dev.bus_id)
146
147 #ifdef DEBUG
148 extern int cs_debug_level(int);
149
150 #define cs_dbg(skt, lvl, fmt, arg...) do { \
151 if (cs_debug_level(lvl)) \
152 printk(KERN_DEBUG "cs: %s: " fmt, \
153 cs_socket_name(skt) , ## arg); \
154 } while (0)
155
156 #else
157 #define cs_dbg(skt, lvl, fmt, arg...) do { } while (0)
158 #endif
159
160 #define cs_err(skt, fmt, arg...) \
161 printk(KERN_ERR "cs: %s: " fmt, (skt)->dev.bus_id , ## arg)
162
163 #endif /* _LINUX_CS_INTERNAL_H */
164
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