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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 */ | |
53 | typedef 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 | ||
60 | extern 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 | ||
87 | typedef 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 | ||
94 | typedef 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 | ||
103 | typedef 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 | */ | |
118 | struct pcmcia_socket; | |
119 | struct pccard_resource_ops; | |
120 | struct config_t; | |
121 | struct pcmcia_callback; | |
122 | struct user_info_t; | |
123 | ||
124 | struct 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 | ||
133 | struct 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 | */ | |
244 | extern struct pccard_resource_ops pccard_static_ops; | |
245 | #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE) | |
246 | extern struct pccard_resource_ops pccard_iodyn_ops; | |
247 | extern 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 */ | |
258 | extern void pcmcia_parse_events(struct pcmcia_socket *socket, | |
259 | unsigned int events); | |
260 | ||
261 | /* to register and unregister a socket */ | |
262 | extern int pcmcia_register_socket(struct pcmcia_socket *socket); | |
263 | extern void pcmcia_unregister_socket(struct pcmcia_socket *socket); | |
264 | ||
265 | ||
266 | #endif /* _LINUX_SS_H */ |