xref: /openbmc/linux/include/pcmcia/ss.h (revision 643d1f7f)
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 #include <pcmcia/cs_types.h>
23 #include <pcmcia/cs.h>
24 #include <pcmcia/bulkmem.h>
25 #ifdef CONFIG_CARDBUS
26 #include <linux/pci.h>
27 #endif
28 
29 /* Definitions for card status flags for GetStatus */
30 #define SS_WRPROT	0x0001
31 #define SS_CARDLOCK	0x0002
32 #define SS_EJECTION	0x0004
33 #define SS_INSERTION	0x0008
34 #define SS_BATDEAD	0x0010
35 #define SS_BATWARN	0x0020
36 #define SS_READY	0x0040
37 #define SS_DETECT	0x0080
38 #define SS_POWERON	0x0100
39 #define SS_GPI		0x0200
40 #define SS_STSCHG	0x0400
41 #define SS_CARDBUS	0x0800
42 #define SS_3VCARD	0x1000
43 #define SS_XVCARD	0x2000
44 #define SS_PENDING	0x4000
45 #define SS_ZVCARD	0x8000
46 
47 /* InquireSocket capabilities */
48 #define SS_CAP_PAGE_REGS	0x0001
49 #define SS_CAP_VIRTUAL_BUS	0x0002
50 #define SS_CAP_MEM_ALIGN	0x0004
51 #define SS_CAP_STATIC_MAP	0x0008
52 #define SS_CAP_PCCARD		0x4000
53 #define SS_CAP_CARDBUS		0x8000
54 
55 /* for GetSocket, SetSocket */
56 typedef struct socket_state_t {
57     u_int	flags;
58     u_int	csc_mask;
59     u_char	Vcc, Vpp;
60     u_char	io_irq;
61 } socket_state_t;
62 
63 extern socket_state_t dead_socket;
64 
65 /* Socket configuration flags */
66 #define SS_PWR_AUTO	0x0010
67 #define SS_IOCARD	0x0020
68 #define SS_RESET	0x0040
69 #define SS_DMA_MODE	0x0080
70 #define SS_SPKR_ENA	0x0100
71 #define SS_OUTPUT_ENA	0x0200
72 
73 /* Flags for I/O port and memory windows */
74 #define MAP_ACTIVE	0x01
75 #define MAP_16BIT	0x02
76 #define MAP_AUTOSZ	0x04
77 #define MAP_0WS		0x08
78 #define MAP_WRPROT	0x10
79 #define MAP_ATTRIB	0x20
80 #define MAP_USE_WAIT	0x40
81 #define MAP_PREFETCH	0x80
82 
83 /* Use this just for bridge windows */
84 #define MAP_IOSPACE	0x20
85 
86 /* power hook operations */
87 #define HOOK_POWER_PRE	0x01
88 #define HOOK_POWER_POST	0x02
89 
90 
91 typedef struct pccard_io_map {
92     u_char	map;
93     u_char	flags;
94     u_short	speed;
95     kio_addr_t	start, stop;
96 } pccard_io_map;
97 
98 typedef struct pccard_mem_map {
99     u_char	map;
100     u_char	flags;
101     u_short	speed;
102     u_long	static_start;
103     u_int	card_start;
104     struct resource *res;
105 } pccard_mem_map;
106 
107 typedef struct cb_bridge_map {
108     u_char	map;
109     u_char	flags;
110     u_int	start, stop;
111 } cb_bridge_map;
112 
113 /*
114  * Socket operations.
115  */
116 struct pcmcia_socket;
117 
118 struct pccard_operations {
119 	int (*init)(struct pcmcia_socket *sock);
120 	int (*suspend)(struct pcmcia_socket *sock);
121 	int (*get_status)(struct pcmcia_socket *sock, u_int *value);
122 	int (*set_socket)(struct pcmcia_socket *sock, socket_state_t *state);
123 	int (*set_io_map)(struct pcmcia_socket *sock, struct pccard_io_map *io);
124 	int (*set_mem_map)(struct pcmcia_socket *sock, struct pccard_mem_map *mem);
125 };
126 
127 struct pccard_resource_ops {
128 	int	(*validate_mem)		(struct pcmcia_socket *s);
129 	int	(*adjust_io_region)	(struct resource *res,
130 					 unsigned long r_start,
131 					 unsigned long r_end,
132 					 struct pcmcia_socket *s);
133 	struct resource* (*find_io)	(unsigned long base, int num,
134 					 unsigned long align,
135 					 struct pcmcia_socket *s);
136 	struct resource* (*find_mem)	(unsigned long base, unsigned long num,
137 					 unsigned long align, int low,
138 					 struct pcmcia_socket *s);
139 	int	(*adjust_resource)	(struct pcmcia_socket *s,
140 					 adjust_t *adj);
141 	int	(*init)			(struct pcmcia_socket *s);
142 	void	(*exit)			(struct pcmcia_socket *s);
143 };
144 /* SS_CAP_STATIC_MAP */
145 extern struct pccard_resource_ops pccard_static_ops;
146 /* !SS_CAP_STATIC_MAP */
147 extern struct pccard_resource_ops pccard_nonstatic_ops;
148 
149 /* static mem, dynamic IO sockets */
150 extern struct pccard_resource_ops pccard_iodyn_ops;
151 
152 /*
153  *  Calls to set up low-level "Socket Services" drivers
154  */
155 struct pcmcia_socket;
156 
157 typedef struct io_window_t {
158 	kio_addr_t		InUse, Config;
159 	struct resource		*res;
160 } io_window_t;
161 
162 #define WINDOW_MAGIC	0xB35C
163 typedef struct window_t {
164 	u_short			magic;
165 	u_short			index;
166 	struct pcmcia_device	*handle;
167 	struct pcmcia_socket 	*sock;
168 	pccard_mem_map		ctl;
169 } window_t;
170 
171 /* Maximum number of IO windows per socket */
172 #define MAX_IO_WIN 2
173 
174 /* Maximum number of memory windows per socket */
175 #define MAX_WIN 4
176 
177 struct config_t;
178 struct pcmcia_callback;
179 struct user_info_t;
180 
181 struct pcmcia_socket {
182 	struct module			*owner;
183 	spinlock_t			lock;
184 	socket_state_t			socket;
185 	u_int				state;
186 	u_short				functions;
187 	u_short				lock_count;
188 	pccard_mem_map			cis_mem;
189 	void __iomem 			*cis_virt;
190 	struct {
191 		u_int			AssignedIRQ;
192 		u_int			Config;
193 	} irq;
194 	io_window_t			io[MAX_IO_WIN];
195 	window_t			win[MAX_WIN];
196 	struct list_head		cis_cache;
197 	u_int				fake_cis_len;
198 	char				*fake_cis;
199 
200 	struct list_head		socket_list;
201 	struct completion		socket_released;
202 
203  	/* deprecated */
204 	unsigned int			sock;		/* socket number */
205 
206 
207 	/* socket capabilities */
208 	u_int				features;
209 	u_int				irq_mask;
210 	u_int				map_size;
211 	kio_addr_t			io_offset;
212 	u_char				pci_irq;
213 	struct pci_dev *		cb_dev;
214 
215 
216 	/* socket setup is done so resources should be able to be allocated. Only
217 	 * if set to 1, calls to find_{io,mem}_region are handled, and insertion
218 	 * events are actually managed by the PCMCIA layer.*/
219 	u8				resource_setup_done:1;
220 
221 	/* is set to one if resource setup is done using adjust_resource_info() */
222 	u8				resource_setup_old:1;
223 	u8				resource_setup_new:1;
224 
225 	u8				reserved:5;
226 
227 	/* socket operations */
228 	struct pccard_operations *	ops;
229 	struct pccard_resource_ops *	resource_ops;
230 	void *				resource_data;
231 
232 	/* Zoom video behaviour is so chip specific its not worth adding
233 	   this to _ops */
234 	void 				(*zoom_video)(struct pcmcia_socket *, int);
235 
236 	/* so is power hook */
237 	int (*power_hook)(struct pcmcia_socket *sock, int operation);
238 #ifdef CONFIG_CARDBUS
239 	/* allows tuning the CB bridge before loading driver for the CB card */
240 	void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus);
241 #endif
242 
243 	/* state thread */
244 	struct mutex			skt_mutex;	/* protects socket h/w state */
245 
246 	struct task_struct		*thread;
247 	struct completion		thread_done;
248 	wait_queue_head_t		thread_wait;
249 	spinlock_t			thread_lock;	/* protects thread_events */
250 	unsigned int			thread_events;
251 
252 	/* pcmcia (16-bit) */
253 	struct pcmcia_callback		*callback;
254 
255 #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
256 	struct list_head		devices_list;	/*  PCMCIA devices */
257 	u8				device_count;	/* the number of devices, used
258 							 * only internally and subject
259 							 * to incorrectness and change */
260 
261 	struct {
262 		u8			present:1,	/* PCMCIA card is present in socket */
263 					busy:1,		/* "master" ioctl is used */
264 					dead:1,		/* pcmcia module is being unloaded */
265 					device_add_pending:1, /* a multifunction-device
266 							       * add event is pending */
267 					mfc_pfc:1,	/* the pending event adds a mfc (1) or pfc (0) */
268 					reserved:3;
269 	} 				pcmcia_state;
270 
271 	struct work_struct		device_add;	/* for adding further pseudo-multifunction
272 							 * devices */
273 
274 #ifdef CONFIG_PCMCIA_IOCTL
275 	struct user_info_t		*user;
276 	wait_queue_head_t		queue;
277 #endif
278 #endif
279 
280 	/* cardbus (32-bit) */
281 #ifdef CONFIG_CARDBUS
282 	struct resource *		cb_cis_res;
283 	void __iomem			*cb_cis_virt;
284 #endif
285 
286 	/* socket device */
287 	struct device			dev;
288 	void				*driver_data;	/* data internal to the socket driver */
289 
290 };
291 
292 struct pcmcia_socket * pcmcia_get_socket_by_nr(unsigned int nr);
293 
294 
295 
296 extern void pcmcia_parse_events(struct pcmcia_socket *socket, unsigned int events);
297 extern int pcmcia_register_socket(struct pcmcia_socket *socket);
298 extern void pcmcia_unregister_socket(struct pcmcia_socket *socket);
299 
300 extern struct class pcmcia_socket_class;
301 
302 /* socket drivers are expected to use these callbacks in their .drv struct */
303 extern int pcmcia_socket_dev_suspend(struct device *dev, pm_message_t state);
304 extern int pcmcia_socket_dev_resume(struct device *dev);
305 
306 #endif /* _LINUX_SS_H */
307