1/*
2 * ss.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_SS_H
16#define _LINUX_SS_H
17
18#include <linux/device.h>
19#include <linux/sched.h> /* task_struct, completion */
20#include <linux/mutex.h>
21
22#ifdef CONFIG_CARDBUS
23#include <linux/pci.h>
24#endif
25
26/* Definitions for card status flags for GetStatus */
27#define SS_WRPROT 0x0001
28#define SS_CARDLOCK 0x0002
29#define SS_EJECTION 0x0004
30#define SS_INSERTION 0x0008
31#define SS_BATDEAD 0x0010
32#define SS_BATWARN 0x0020
33#define SS_READY 0x0040
34#define SS_DETECT 0x0080
35#define SS_POWERON 0x0100
36#define SS_GPI 0x0200
37#define SS_STSCHG 0x0400
38#define SS_CARDBUS 0x0800
39#define SS_3VCARD 0x1000
40#define SS_XVCARD 0x2000
41#define SS_PENDING 0x4000
42#define SS_ZVCARD 0x8000
43
44/* InquireSocket capabilities */
45#define SS_CAP_PAGE_REGS 0x0001
46#define SS_CAP_VIRTUAL_BUS 0x0002
47#define SS_CAP_MEM_ALIGN 0x0004
48#define SS_CAP_STATIC_MAP 0x0008
49#define SS_CAP_PCCARD 0x4000
50#define SS_CAP_CARDBUS 0x8000
51
52/* for GetSocket, SetSocket */
53typedef struct socket_state_t {
54 u_int flags;
55 u_int csc_mask;
56 u_char Vcc, Vpp;
57 u_char io_irq;
58} socket_state_t;
59
60extern socket_state_t dead_socket;
61
62/* Socket configuration flags */
63#define SS_PWR_AUTO 0x0010
64#define SS_IOCARD 0x0020
65#define SS_RESET 0x0040
66#define SS_DMA_MODE 0x0080
67#define SS_SPKR_ENA 0x0100
68#define SS_OUTPUT_ENA 0x0200
69
70/* Flags for I/O port and memory windows */
71#define MAP_ACTIVE 0x01
72#define MAP_16BIT 0x02
73#define MAP_AUTOSZ 0x04
74#define MAP_0WS 0x08
75#define MAP_WRPROT 0x10
76#define MAP_ATTRIB 0x20
77#define MAP_USE_WAIT 0x40
78#define MAP_PREFETCH 0x80
79
80/* Use this just for bridge windows */
81#define MAP_IOSPACE 0x20
82
83/* power hook operations */
84#define HOOK_POWER_PRE 0x01
85#define HOOK_POWER_POST 0x02
86
87typedef struct pccard_io_map {
88 u_char map;
89 u_char flags;
90 u_short speed;
91 phys_addr_t start, stop;
92} pccard_io_map;
93
94typedef struct pccard_mem_map {
95 u_char map;
96 u_char flags;
97 u_short speed;
98 phys_addr_t static_start;
99 u_int card_start;
100 struct resource *res;
101} pccard_mem_map;
102
103typedef struct io_window_t {
104 u_int InUse, Config;
105 struct resource *res;
106} io_window_t;
107
108/* Maximum number of IO windows per socket */
109#define MAX_IO_WIN 2
110
111/* Maximum number of memory windows per socket */
112#define MAX_WIN 4
113
114
115/*
116 * Socket operations.
117 */
118struct pcmcia_socket;
119struct pccard_resource_ops;
120struct config_t;
121struct pcmcia_callback;
122struct user_info_t;
123
124struct pccard_operations {
125 int (*init)(struct pcmcia_socket *s);
126 int (*suspend)(struct pcmcia_socket *s);
127 int (*get_status)(struct pcmcia_socket *s, u_int *value);
128 int (*set_socket)(struct pcmcia_socket *s, socket_state_t *state);
129 int (*set_io_map)(struct pcmcia_socket *s, struct pccard_io_map *io);
130 int (*set_mem_map)(struct pcmcia_socket *s, struct pccard_mem_map *mem);
131};
132
133struct pcmcia_socket {
134 struct module *owner;
135 socket_state_t socket;
136 u_int state;
137 u_int suspended_state; /* state before suspend */
138 u_short functions;
139 u_short lock_count;
140 pccard_mem_map cis_mem;
141 void __iomem *cis_virt;
142 io_window_t io[MAX_IO_WIN];
143 pccard_mem_map win[MAX_WIN];
144 struct list_head cis_cache;
145 size_t fake_cis_len;
146 u8 *fake_cis;
147
148 struct list_head socket_list;
149 struct completion socket_released;
150
151 /* deprecated */
152 unsigned int sock; /* socket number */
153
154
155 /* socket capabilities */
156 u_int features;
157 u_int irq_mask;
158 u_int map_size;
159 u_int io_offset;
160 u_int pci_irq;
161 struct pci_dev *cb_dev;
162
163 /* socket setup is done so resources should be able to be allocated.
164 * Only if set to 1, calls to find_{io,mem}_region are handled, and
165 * insertio events are actually managed by the PCMCIA layer.*/
166 u8 resource_setup_done;
167
168 /* socket operations */
169 struct pccard_operations *ops;
170 struct pccard_resource_ops *resource_ops;
171 void *resource_data;
172
173 /* Zoom video behaviour is so chip specific its not worth adding
174 this to _ops */
175 void (*zoom_video)(struct pcmcia_socket *,
176 int);
177
178 /* so is power hook */
179 int (*power_hook)(struct pcmcia_socket *sock, int operation);
180
181 /* allows tuning the CB bridge before loading driver for the CB card */
182#ifdef CONFIG_CARDBUS
183 void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus);
184#endif
185
186 /* state thread */
187 struct task_struct *thread;
188 struct completion thread_done;
189 unsigned int thread_events;
190 unsigned int sysfs_events;
191
192 /* For the non-trivial interaction between these locks,
193 * see Documentation/pcmcia/locking.txt */
194 struct mutex skt_mutex;
195 struct mutex ops_mutex;
196
197 /* protects thread_events and sysfs_events */
198 spinlock_t thread_lock;
199
200 /* pcmcia (16-bit) */
201 struct pcmcia_callback *callback;
202
203#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
204 /* The following elements refer to 16-bit PCMCIA devices inserted
205 * into the socket */
206 struct list_head devices_list;
207
208 /* the number of devices, used only internally and subject to
209 * incorrectness and change */
210 u8 device_count;
211
212 /* does the PCMCIA card consist of two pseudo devices? */
213 u8 pcmcia_pfc;
214
215 /* non-zero if PCMCIA card is present */
216 atomic_t present;
217
218 /* IRQ to be used by PCMCIA devices. May not be IRQ 0. */
219 unsigned int pcmcia_irq;
220
221#endif /* CONFIG_PCMCIA */
222
223 /* socket device */
224 struct device dev;
225 /* data internal to the socket driver */
226 void *driver_data;
227 /* status of the card during resume from a system sleep state */
228 int resume_status;
229};
230
231
232/* socket drivers must define the resource operations type they use. There
233 * are three options:
234 * - pccard_static_ops iomem and ioport areas are assigned statically
235 * - pccard_iodyn_ops iomem areas is assigned statically, ioport
236 * areas dynamically
237 * If this option is selected, use
238 * "select PCCARD_IODYN" in Kconfig.
239 * - pccard_nonstatic_ops iomem and ioport areas are assigned dynamically.
240 * If this option is selected, use
241 * "select PCCARD_NONSTATIC" in Kconfig.
242 *
243 */
244extern struct pccard_resource_ops pccard_static_ops;
245#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
246extern struct pccard_resource_ops pccard_iodyn_ops;
247extern struct pccard_resource_ops pccard_nonstatic_ops;
248#else
249/* If PCMCIA is not used, but only CARDBUS, these functions are not used
250 * at all. Therefore, do not use the large (240K!) rsrc_nonstatic module
251 */
252#define pccard_iodyn_ops pccard_static_ops
253#define pccard_nonstatic_ops pccard_static_ops
254#endif
255
256
257/* socket drivers use this callback in their IRQ handler */
258extern void pcmcia_parse_events(struct pcmcia_socket *socket,
259 unsigned int events);
260
261/* to register and unregister a socket */
262extern int pcmcia_register_socket(struct pcmcia_socket *socket);
263extern void pcmcia_unregister_socket(struct pcmcia_socket *socket);
264
265
266#endif /* _LINUX_SS_H */
267