dm: factor out max_io_len_target_boundary
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / pcmcia / ss.h
blob626b63c33d9e0e374387ca106063d19048899bb5
1 /*
2 * ss.h
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.
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.
12 * (C) 1999 David A. Hinds
15 #ifndef _LINUX_SS_H
16 #define _LINUX_SS_H
18 #include <linux/device.h>
19 #include <linux/sched.h> /* task_struct, completion */
20 #include <linux/mutex.h>
22 #include <pcmcia/cs.h>
23 #ifdef CONFIG_CARDBUS
24 #include <linux/pci.h>
25 #endif
27 /* Definitions for card status flags for GetStatus */
28 #define SS_WRPROT 0x0001
29 #define SS_CARDLOCK 0x0002
30 #define SS_EJECTION 0x0004
31 #define SS_INSERTION 0x0008
32 #define SS_BATDEAD 0x0010
33 #define SS_BATWARN 0x0020
34 #define SS_READY 0x0040
35 #define SS_DETECT 0x0080
36 #define SS_POWERON 0x0100
37 #define SS_GPI 0x0200
38 #define SS_STSCHG 0x0400
39 #define SS_CARDBUS 0x0800
40 #define SS_3VCARD 0x1000
41 #define SS_XVCARD 0x2000
42 #define SS_PENDING 0x4000
43 #define SS_ZVCARD 0x8000
45 /* InquireSocket capabilities */
46 #define SS_CAP_PAGE_REGS 0x0001
47 #define SS_CAP_VIRTUAL_BUS 0x0002
48 #define SS_CAP_MEM_ALIGN 0x0004
49 #define SS_CAP_STATIC_MAP 0x0008
50 #define SS_CAP_PCCARD 0x4000
51 #define SS_CAP_CARDBUS 0x8000
53 /* for GetSocket, SetSocket */
54 typedef struct socket_state_t {
55 u_int flags;
56 u_int csc_mask;
57 u_char Vcc, Vpp;
58 u_char io_irq;
59 } socket_state_t;
61 extern socket_state_t dead_socket;
63 /* Socket configuration flags */
64 #define SS_PWR_AUTO 0x0010
65 #define SS_IOCARD 0x0020
66 #define SS_RESET 0x0040
67 #define SS_DMA_MODE 0x0080
68 #define SS_SPKR_ENA 0x0100
69 #define SS_OUTPUT_ENA 0x0200
71 /* Flags for I/O port and memory windows */
72 #define MAP_ACTIVE 0x01
73 #define MAP_16BIT 0x02
74 #define MAP_AUTOSZ 0x04
75 #define MAP_0WS 0x08
76 #define MAP_WRPROT 0x10
77 #define MAP_ATTRIB 0x20
78 #define MAP_USE_WAIT 0x40
79 #define MAP_PREFETCH 0x80
81 /* Use this just for bridge windows */
82 #define MAP_IOSPACE 0x20
84 /* power hook operations */
85 #define HOOK_POWER_PRE 0x01
86 #define HOOK_POWER_POST 0x02
88 typedef struct pccard_io_map {
89 u_char map;
90 u_char flags;
91 u_short speed;
92 phys_addr_t start, stop;
93 } pccard_io_map;
95 typedef struct pccard_mem_map {
96 u_char map;
97 u_char flags;
98 u_short speed;
99 phys_addr_t static_start;
100 u_int card_start;
101 struct resource *res;
102 } pccard_mem_map;
104 typedef struct io_window_t {
105 u_int InUse, Config;
106 struct resource *res;
107 } io_window_t;
109 /* Maximum number of IO windows per socket */
110 #define MAX_IO_WIN 2
112 /* Maximum number of memory windows per socket */
113 #define MAX_WIN 4
117 * Socket operations.
119 struct pcmcia_socket;
120 struct pccard_resource_ops;
121 struct config_t;
122 struct pcmcia_callback;
123 struct user_info_t;
125 struct pccard_operations {
126 int (*init)(struct pcmcia_socket *s);
127 int (*suspend)(struct pcmcia_socket *s);
128 int (*get_status)(struct pcmcia_socket *s, u_int *value);
129 int (*set_socket)(struct pcmcia_socket *s, socket_state_t *state);
130 int (*set_io_map)(struct pcmcia_socket *s, struct pccard_io_map *io);
131 int (*set_mem_map)(struct pcmcia_socket *s, struct pccard_mem_map *mem);
134 struct pcmcia_socket {
135 struct module *owner;
136 socket_state_t socket;
137 u_int state;
138 u_int suspended_state; /* state before suspend */
139 u_short functions;
140 u_short lock_count;
141 pccard_mem_map cis_mem;
142 void __iomem *cis_virt;
143 io_window_t io[MAX_IO_WIN];
144 pccard_mem_map win[MAX_WIN];
145 struct list_head cis_cache;
146 size_t fake_cis_len;
147 u8 *fake_cis;
149 struct list_head socket_list;
150 struct completion socket_released;
152 /* deprecated */
153 unsigned int sock; /* socket number */
156 /* socket capabilities */
157 u_int features;
158 u_int irq_mask;
159 u_int map_size;
160 u_int io_offset;
161 u_int pci_irq;
162 struct pci_dev *cb_dev;
164 /* socket setup is done so resources should be able to be allocated.
165 * Only if set to 1, calls to find_{io,mem}_region are handled, and
166 * insertio events are actually managed by the PCMCIA layer.*/
167 u8 resource_setup_done;
169 /* socket operations */
170 struct pccard_operations *ops;
171 struct pccard_resource_ops *resource_ops;
172 void *resource_data;
174 /* Zoom video behaviour is so chip specific its not worth adding
175 this to _ops */
176 void (*zoom_video)(struct pcmcia_socket *,
177 int);
179 /* so is power hook */
180 int (*power_hook)(struct pcmcia_socket *sock, int operation);
182 /* allows tuning the CB bridge before loading driver for the CB card */
183 #ifdef CONFIG_CARDBUS
184 void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus);
185 #endif
187 /* state thread */
188 struct task_struct *thread;
189 struct completion thread_done;
190 unsigned int thread_events;
191 unsigned int sysfs_events;
193 /* For the non-trivial interaction between these locks,
194 * see Documentation/pcmcia/locking.txt */
195 struct mutex skt_mutex;
196 struct mutex ops_mutex;
198 /* protects thread_events and sysfs_events */
199 spinlock_t thread_lock;
201 /* pcmcia (16-bit) */
202 struct pcmcia_callback *callback;
204 #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
205 /* The following elements refer to 16-bit PCMCIA devices inserted
206 * into the socket */
207 struct list_head devices_list;
209 /* the number of devices, used only internally and subject to
210 * incorrectness and change */
211 u8 device_count;
213 /* does the PCMCIA card consist of two pseudo devices? */
214 u8 pcmcia_pfc;
216 /* non-zero if PCMCIA card is present */
217 atomic_t present;
219 /* IRQ to be used by PCMCIA devices. May not be IRQ 0. */
220 unsigned int pcmcia_irq;
222 #endif /* CONFIG_PCMCIA */
224 /* socket device */
225 struct device dev;
226 /* data internal to the socket driver */
227 void *driver_data;
228 /* status of the card during resume from a system sleep state */
229 int resume_status;
233 /* socket drivers must define the resource operations type they use. There
234 * are three options:
235 * - pccard_static_ops iomem and ioport areas are assigned statically
236 * - pccard_iodyn_ops iomem areas is assigned statically, ioport
237 * areas dynamically
238 * If this option is selected, use
239 * "select PCCARD_IODYN" in Kconfig.
240 * - pccard_nonstatic_ops iomem and ioport areas are assigned dynamically.
241 * If this option is selected, use
242 * "select PCCARD_NONSTATIC" in Kconfig.
245 extern struct pccard_resource_ops pccard_static_ops;
246 #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
247 extern struct pccard_resource_ops pccard_iodyn_ops;
248 extern struct pccard_resource_ops pccard_nonstatic_ops;
249 #else
250 /* If PCMCIA is not used, but only CARDBUS, these functions are not used
251 * at all. Therefore, do not use the large (240K!) rsrc_nonstatic module
253 #define pccard_iodyn_ops pccard_static_ops
254 #define pccard_nonstatic_ops pccard_static_ops
255 #endif
258 /* socket drivers use this callback in their IRQ handler */
259 extern void pcmcia_parse_events(struct pcmcia_socket *socket,
260 unsigned int events);
262 /* to register and unregister a socket */
263 extern int pcmcia_register_socket(struct pcmcia_socket *socket);
264 extern void pcmcia_unregister_socket(struct pcmcia_socket *socket);
267 #endif /* _LINUX_SS_H */