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/config.h>
19
20 #define CLIENT_MAGIC 0x51E6
21 typedef struct client_t client_t;
22
23 /* Flags in client state */
24 #define CLIENT_CONFIG_LOCKED 0x0001
25 #define CLIENT_IRQ_REQ 0x0002
26 #define CLIENT_IO_REQ 0x0004
27 #define CLIENT_UNBOUND 0x0008
28 #define CLIENT_STALE 0x0010
29 #define CLIENT_WIN_REQ(i) (0x20<<(i))
30 #define CLIENT_CARDBUS 0x8000
31
32 #define REGION_MAGIC 0xE3C9
33 typedef struct region_t {
34 u_short region_magic;
35 u_short state;
36 dev_info_t dev_info;
37 client_handle_t mtd;
38 u_int MediaID;
39 region_info_t info;
40 } region_t;
41
42 #define REGION_STALE 0x01
43
44 /* Each card function gets one of these guys */
45 typedef struct config_t {
46 u_int state;
47 u_int Attributes;
48 u_int Vcc, Vpp1, Vpp2;
49 u_int IntType;
50 u_int ConfigBase;
51 u_char Status, Pin, Copy, Option, ExtStatus;
52 u_int Present;
53 u_int CardValues;
54 io_req_t io;
55 struct {
56 u_int Attributes;
57 } irq;
58 } config_t;
59
60 struct cis_cache_entry {
61 struct list_head node;
62 unsigned int addr;
63 unsigned int len;
64 unsigned int attr;
65 unsigned char cache[0];
66 };
67
68 /* Flags in config state */
69 #define CONFIG_LOCKED 0x01
70 #define CONFIG_IRQ_REQ 0x02
71 #define CONFIG_IO_REQ 0x04
72
73 /* Flags in socket state */
74 #define SOCKET_PRESENT 0x0008
75 #define SOCKET_INUSE 0x0010
76 #define SOCKET_SUSPEND 0x0080
77 #define SOCKET_WIN_REQ(i) (0x0100<<(i))
78 #define SOCKET_REGION_INFO 0x4000
79 #define SOCKET_CARDBUS 0x8000
80 #define SOCKET_CARDBUS_CONFIG 0x10000
81
82 static inline int cs_socket_get(struct pcmcia_socket *skt)
83 {
84 int ret;
85
86 WARN_ON(skt->state & SOCKET_INUSE);
87
88 ret = try_module_get(skt->owner);
89 if (ret)
90 skt->state |= SOCKET_INUSE;
91 return ret;
92 }
93
94 static inline void cs_socket_put(struct pcmcia_socket *skt)
95 {
96 if (skt->state & SOCKET_INUSE) {
97 skt->state &= ~SOCKET_INUSE;
98 module_put(skt->owner);
99 }
100 }
101
102 #define CHECK_HANDLE(h) \
103 (((h) == NULL) || ((h)->client_magic != CLIENT_MAGIC))
104
105 #define CHECK_SOCKET(s) \
106 (((s) >= sockets) || (socket_table[s]->ops == NULL))
107
108 #define SOCKET(h) (h->Socket)
109 #define CONFIG(h) (&SOCKET(h)->config[(h)->Function])
110
111 #define CHECK_REGION(r) \
112 (((r) == NULL) || ((r)->region_magic != REGION_MAGIC))
113
114 #define CHECK_ERASEQ(q) \
115 (((q) == NULL) || ((q)->eraseq_magic != ERASEQ_MAGIC))
116
117 #define EVENT(h, e, p) \
118 ((h)->event_handler((e), (p), &(h)->event_callback_args))
119
120 /* In cardbus.c */
121 int cb_alloc(struct pcmcia_socket *s);
122 void cb_free(struct pcmcia_socket *s);
123 int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, void *ptr);
124
125 /* In cistpl.c */
126 int read_cis_mem(struct pcmcia_socket *s, int attr,
127 u_int addr, u_int len, void *ptr);
128 void write_cis_mem(struct pcmcia_socket *s, int attr,
129 u_int addr, u_int len, void *ptr);
130 void release_cis_mem(struct pcmcia_socket *s);
131 void destroy_cis_cache(struct pcmcia_socket *s);
132 int verify_cis_cache(struct pcmcia_socket *s);
133 int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t code, void *parse);
134
135 /* In rsrc_mgr */
136 void pcmcia_validate_mem(struct pcmcia_socket *s);
137 struct resource *find_io_region(unsigned long base, int num, unsigned long align,
138 struct pcmcia_socket *s);
139 int adjust_io_region(struct resource *res, unsigned long r_start,
140 unsigned long r_end, struct pcmcia_socket *s);
141 struct resource *find_mem_region(u_long base, u_long num, u_long align,
142 int low, struct pcmcia_socket *s);
143 int adjust_resource_info(client_handle_t handle, adjust_t *adj);
144 void release_resource_db(struct pcmcia_socket *s);
145
146 /* In socket_sysfs.c */
147 extern struct class_interface pccard_sysfs_interface;
148
149 /* In cs.c */
150 extern struct rw_semaphore pcmcia_socket_list_rwsem;
151 extern struct list_head pcmcia_socket_list;
152 int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, int idx, win_req_t *req);
153 int pccard_get_configuration_info(struct pcmcia_socket *s, unsigned int function, config_info_t *config);
154 int pccard_reset_card(struct pcmcia_socket *skt);
155 int pccard_get_status(struct pcmcia_socket *s, unsigned int function, cs_status_t *status);
156 int pccard_access_configuration_register(struct pcmcia_socket *s, unsigned int function, conf_reg_t *reg);
157
158
159 struct pcmcia_callback{
160 struct module *owner;
161 int (*event) (struct pcmcia_socket *s, event_t event, int priority);
162 };
163
164 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
165
166 #define cs_socket_name(skt) ((skt)->dev.class_id)
167
168 #ifdef DEBUG
169 extern int cs_debug_level(int);
170
171 #define cs_dbg(skt, lvl, fmt, arg...) do { \
172 if (cs_debug_level(lvl)) \
173 printk(KERN_DEBUG "cs: %s: " fmt, \
174 cs_socket_name(skt) , ## arg); \
175 } while (0)
176
177 #else
178 #define cs_dbg(skt, lvl, fmt, arg...) do { } while (0)
179 #endif
180
181 #define cs_err(skt, fmt, arg...) \
182 printk(KERN_ERR "cs: %s: " fmt, (skt)->dev.class_id , ## arg)
183
184 #endif /* _LINUX_CS_INTERNAL_H */
185
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