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path: root/drivers/telephony/ixj_pcmcia.c
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Diffstat (limited to 'drivers/telephony/ixj_pcmcia.c')
-rw-r--r--drivers/telephony/ixj_pcmcia.c321
1 files changed, 321 insertions, 0 deletions
diff --git a/drivers/telephony/ixj_pcmcia.c b/drivers/telephony/ixj_pcmcia.c
new file mode 100644
index 000000000000..e1ef0d7ee8d1
--- /dev/null
+++ b/drivers/telephony/ixj_pcmcia.c
@@ -0,0 +1,321 @@
1#include "ixj-ver.h"
2
3#include <linux/module.h>
4
5#include <linux/init.h>
6#include <linux/sched.h>
7#include <linux/kernel.h> /* printk() */
8#include <linux/fs.h> /* everything... */
9#include <linux/errno.h> /* error codes */
10#include <linux/slab.h>
11
12#include <pcmcia/version.h>
13#include <pcmcia/cs_types.h>
14#include <pcmcia/cs.h>
15#include <pcmcia/cistpl.h>
16#include <pcmcia/ds.h>
17
18#include "ixj.h"
19
20/*
21 * PCMCIA service support for Quicknet cards
22 */
23
24#ifdef PCMCIA_DEBUG
25static int pc_debug = PCMCIA_DEBUG;
26module_param(pc_debug, int, 0644);
27#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
28#else
29#define DEBUG(n, args...)
30#endif
31
32typedef struct ixj_info_t {
33 int ndev;
34 dev_node_t node;
35 struct ixj *port;
36} ixj_info_t;
37
38static dev_link_t *ixj_attach(void);
39static void ixj_detach(dev_link_t *);
40static void ixj_config(dev_link_t * link);
41static void ixj_cs_release(dev_link_t * link);
42static int ixj_event(event_t event, int priority, event_callback_args_t * args);
43static dev_info_t dev_info = "ixj_cs";
44static dev_link_t *dev_list = NULL;
45
46static dev_link_t *ixj_attach(void)
47{
48 client_reg_t client_reg;
49 dev_link_t *link;
50 int ret;
51 DEBUG(0, "ixj_attach()\n");
52 /* Create new ixj device */
53 link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
54 if (!link)
55 return NULL;
56 memset(link, 0, sizeof(struct dev_link_t));
57 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
58 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
59 link->io.IOAddrLines = 3;
60 link->conf.Vcc = 50;
61 link->conf.IntType = INT_MEMORY_AND_IO;
62 link->priv = kmalloc(sizeof(struct ixj_info_t), GFP_KERNEL);
63 if (!link->priv) {
64 kfree(link);
65 return NULL;
66 }
67 memset(link->priv, 0, sizeof(struct ixj_info_t));
68 /* Register with Card Services */
69 link->next = dev_list;
70 dev_list = link;
71 client_reg.dev_info = &dev_info;
72 client_reg.EventMask =
73 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
74 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
75 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
76 client_reg.event_handler = &ixj_event;
77 client_reg.Version = 0x0210;
78 client_reg.event_callback_args.client_data = link;
79 ret = pcmcia_register_client(&link->handle, &client_reg);
80 if (ret != CS_SUCCESS) {
81 cs_error(link->handle, RegisterClient, ret);
82 ixj_detach(link);
83 return NULL;
84 }
85 return link;
86}
87
88static void ixj_detach(dev_link_t * link)
89{
90 dev_link_t **linkp;
91 int ret;
92 DEBUG(0, "ixj_detach(0x%p)\n", link);
93 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
94 if (*linkp == link)
95 break;
96 if (*linkp == NULL)
97 return;
98 link->state &= ~DEV_RELEASE_PENDING;
99 if (link->state & DEV_CONFIG)
100 ixj_cs_release(link);
101 if (link->handle) {
102 ret = pcmcia_deregister_client(link->handle);
103 if (ret != CS_SUCCESS)
104 cs_error(link->handle, DeregisterClient, ret);
105 }
106 /* Unlink device structure, free bits */
107 *linkp = link->next;
108 kfree(link->priv);
109 kfree(link);
110}
111
112#define CS_CHECK(fn, ret) \
113do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
114
115static void ixj_get_serial(dev_link_t * link, IXJ * j)
116{
117 client_handle_t handle;
118 tuple_t tuple;
119 u_short buf[128];
120 char *str;
121 int last_ret, last_fn, i, place;
122 handle = link->handle;
123 DEBUG(0, "ixj_get_serial(0x%p)\n", link);
124 tuple.TupleData = (cisdata_t *) buf;
125 tuple.TupleOffset = 0;
126 tuple.TupleDataMax = 80;
127 tuple.Attributes = 0;
128 tuple.DesiredTuple = CISTPL_VERS_1;
129 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
130 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
131 str = (char *) buf;
132 printk("PCMCIA Version %d.%d\n", str[0], str[1]);
133 str += 2;
134 printk("%s", str);
135 str = str + strlen(str) + 1;
136 printk(" %s", str);
137 str = str + strlen(str) + 1;
138 place = 1;
139 for (i = strlen(str) - 1; i >= 0; i--) {
140 switch (str[i]) {
141 case '0':
142 case '1':
143 case '2':
144 case '3':
145 case '4':
146 case '5':
147 case '6':
148 case '7':
149 case '8':
150 case '9':
151 j->serial += (str[i] - 48) * place;
152 break;
153 case 'A':
154 case 'B':
155 case 'C':
156 case 'D':
157 case 'E':
158 case 'F':
159 j->serial += (str[i] - 55) * place;
160 break;
161 case 'a':
162 case 'b':
163 case 'c':
164 case 'd':
165 case 'e':
166 case 'f':
167 j->serial += (str[i] - 87) * place;
168 break;
169 }
170 place = place * 0x10;
171 }
172 str = str + strlen(str) + 1;
173 printk(" version %s\n", str);
174 cs_failed:
175 return;
176}
177
178static void ixj_config(dev_link_t * link)
179{
180 IXJ *j;
181 client_handle_t handle;
182 ixj_info_t *info;
183 tuple_t tuple;
184 u_short buf[128];
185 cisparse_t parse;
186 config_info_t conf;
187 cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
188 cistpl_cftable_entry_t dflt =
189 {
190 0
191 };
192 int last_ret, last_fn;
193 handle = link->handle;
194 info = link->priv;
195 DEBUG(0, "ixj_config(0x%p)\n", link);
196 tuple.TupleData = (cisdata_t *) buf;
197 tuple.TupleOffset = 0;
198 tuple.TupleDataMax = 255;
199 tuple.Attributes = 0;
200 tuple.DesiredTuple = CISTPL_CONFIG;
201 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
202 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
203 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
204 link->conf.ConfigBase = parse.config.base;
205 link->conf.Present = parse.config.rmask[0];
206 link->state |= DEV_CONFIG;
207 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf));
208 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
209 tuple.Attributes = 0;
210 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
211 while (1) {
212 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
213 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
214 goto next_entry;
215 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
216 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
217 link->conf.ConfigIndex = cfg->index;
218 link->io.BasePort1 = io->win[0].base;
219 link->io.NumPorts1 = io->win[0].len;
220 if (io->nwin == 2) {
221 link->io.BasePort2 = io->win[1].base;
222 link->io.NumPorts2 = io->win[1].len;
223 }
224 if (pcmcia_request_io(link->handle, &link->io) != 0)
225 goto next_entry;
226 /* If we've got this far, we're done */
227 break;
228 }
229 next_entry:
230 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
231 dflt = *cfg;
232 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
233 }
234
235 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
236
237 /*
238 * Register the card with the core.
239 */
240 j=ixj_pcmcia_probe(link->io.BasePort1,link->io.BasePort1 + 0x10);
241
242 info->ndev = 1;
243 info->node.major = PHONE_MAJOR;
244 link->dev = &info->node;
245 ixj_get_serial(link, j);
246 link->state &= ~DEV_CONFIG_PENDING;
247 return;
248 cs_failed:
249 cs_error(link->handle, last_fn, last_ret);
250 ixj_cs_release(link);
251}
252
253static void ixj_cs_release(dev_link_t *link)
254{
255 ixj_info_t *info = link->priv;
256 DEBUG(0, "ixj_cs_release(0x%p)\n", link);
257 info->ndev = 0;
258 link->dev = NULL;
259 pcmcia_release_configuration(link->handle);
260 pcmcia_release_io(link->handle, &link->io);
261 link->state &= ~DEV_CONFIG;
262}
263
264static int ixj_event(event_t event, int priority, event_callback_args_t * args)
265{
266 dev_link_t *link = args->client_data;
267 DEBUG(1, "ixj_event(0x%06x)\n", event);
268 switch (event) {
269 case CS_EVENT_CARD_REMOVAL:
270 link->state &= ~DEV_PRESENT;
271 if (link->state & DEV_CONFIG) {
272 link->state |= DEV_RELEASE_PENDING;
273 ixj_cs_release(link);
274 }
275 break;
276 case CS_EVENT_CARD_INSERTION:
277 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
278 ixj_config(link);
279 break;
280 case CS_EVENT_PM_SUSPEND:
281 link->state |= DEV_SUSPEND;
282 /* Fall through... */
283 case CS_EVENT_RESET_PHYSICAL:
284 if (link->state & DEV_CONFIG)
285 pcmcia_release_configuration(link->handle);
286 break;
287 case CS_EVENT_PM_RESUME:
288 link->state &= ~DEV_SUSPEND;
289 /* Fall through... */
290 case CS_EVENT_CARD_RESET:
291 if (DEV_OK(link))
292 pcmcia_request_configuration(link->handle, &link->conf);
293 break;
294 }
295 return 0;
296}
297
298static struct pcmcia_driver ixj_driver = {
299 .owner = THIS_MODULE,
300 .drv = {
301 .name = "ixj_cs",
302 },
303 .attach = ixj_attach,
304 .detach = ixj_detach,
305};
306
307static int __init ixj_pcmcia_init(void)
308{
309 return pcmcia_register_driver(&ixj_driver);
310}
311
312static void ixj_pcmcia_exit(void)
313{
314 pcmcia_unregister_driver(&ixj_driver);
315 BUG_ON(dev_list != NULL);
316}
317
318module_init(ixj_pcmcia_init);
319module_exit(ixj_pcmcia_exit);
320
321MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-27 15:02:45 -0500