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TOMOYO Linux Cross Reference
Linux/include/pcmcia/ss.h

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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 */
267 

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