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
25 static int pc_debug = PCMCIA_DEBUG;
26 MODULE_PARM(pc_debug, "i");
27 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
28 #else
29 #define DEBUG(n, args...)
30 #endif
31
32 typedef struct ixj_info_t {
33 int ndev;
34 dev_node_t node;
35 struct ixj *port;
36 } ixj_info_t;
37
38 static dev_link_t *ixj_attach(void);
39 static void ixj_detach(dev_link_t *);
40 static void ixj_config(dev_link_t * link);
41 static void ixj_cs_release(u_long arg);
42 static int ixj_event(event_t event, int priority, event_callback_args_t * args);
43 static dev_info_t dev_info = "ixj_cs";
44 static dev_link_t *dev_list = NULL;
45
cs_error(client_handle_t handle,int func,int ret)46 static void cs_error(client_handle_t handle, int func, int ret)
47 {
48 error_info_t err =
49 {
50 func, ret
51 };
52 CardServices(ReportError, handle, &err);
53 }
54
ixj_attach(void)55 static dev_link_t *ixj_attach(void)
56 {
57 client_reg_t client_reg;
58 dev_link_t *link;
59 int ret;
60 DEBUG(0, "ixj_attach()\n");
61 /* Create new ixj device */
62 link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
63 if (!link)
64 return NULL;
65 memset(link, 0, sizeof(struct dev_link_t));
66 link->release.function = &ixj_cs_release;
67 link->release.data = (u_long) link;
68 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
69 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
70 link->io.IOAddrLines = 3;
71 link->conf.Vcc = 50;
72 link->conf.IntType = INT_MEMORY_AND_IO;
73 link->priv = kmalloc(sizeof(struct ixj_info_t), GFP_KERNEL);
74 if (!link->priv)
75 return NULL;
76 memset(link->priv, 0, sizeof(struct ixj_info_t));
77 /* Register with Card Services */
78 link->next = dev_list;
79 dev_list = link;
80 client_reg.dev_info = &dev_info;
81 client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
82 client_reg.EventMask =
83 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
84 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
85 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
86 client_reg.event_handler = &ixj_event;
87 client_reg.Version = 0x0210;
88 client_reg.event_callback_args.client_data = link;
89 ret = CardServices(RegisterClient, &link->handle, &client_reg);
90 if (ret != CS_SUCCESS) {
91 cs_error(link->handle, RegisterClient, ret);
92 ixj_detach(link);
93 return NULL;
94 }
95 return link;
96 }
97
ixj_detach(dev_link_t * link)98 static void ixj_detach(dev_link_t * link)
99 {
100 dev_link_t **linkp;
101 long flags;
102 int ret;
103 DEBUG(0, "ixj_detach(0x%p)\n", link);
104 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
105 if (*linkp == link)
106 break;
107 if (*linkp == NULL)
108 return;
109 save_flags(flags);
110 cli();
111 if (link->state & DEV_RELEASE_PENDING) {
112 del_timer(&link->release);
113 link->state &= ~DEV_RELEASE_PENDING;
114 }
115 restore_flags(flags);
116 if (link->state & DEV_CONFIG)
117 ixj_cs_release((u_long) link);
118 if (link->handle) {
119 ret = CardServices(DeregisterClient, link->handle);
120 if (ret != CS_SUCCESS)
121 cs_error(link->handle, DeregisterClient, ret);
122 }
123 /* Unlink device structure, free bits */
124 *linkp = link->next;
125 kfree(link->priv);
126 kfree(link);
127 }
128
129 #define CS_CHECK(fn, args...) \
130 while ((last_ret=CardServices(last_fn=(fn), args))!=0) goto cs_failed
131
132 #define CFG_CHECK(fn, args...) \
133 if (CardServices(fn, args) != 0) goto next_entry
134
ixj_get_serial(dev_link_t * link,IXJ * j)135 static void ixj_get_serial(dev_link_t * link, IXJ * j)
136 {
137 client_handle_t handle;
138 tuple_t tuple;
139 u_short buf[128];
140 char *str;
141 int last_ret, last_fn, i, place;
142 handle = link->handle;
143 DEBUG(0, "ixj_get_serial(0x%p)\n", link);
144 tuple.TupleData = (cisdata_t *) buf;
145 tuple.TupleOffset = 0;
146 tuple.TupleDataMax = 80;
147 tuple.Attributes = 0;
148 tuple.DesiredTuple = CISTPL_VERS_1;
149 CS_CHECK(GetFirstTuple, handle, &tuple);
150 CS_CHECK(GetTupleData, handle, &tuple);
151 str = (char *) buf;
152 printk("PCMCIA Version %d.%d\n", str[0], str[1]);
153 str += 2;
154 printk("%s", str);
155 str = str + strlen(str) + 1;
156 printk(" %s", str);
157 str = str + strlen(str) + 1;
158 place = 1;
159 for (i = strlen(str) - 1; i >= 0; i--) {
160 switch (str[i]) {
161 case '0':
162 case '1':
163 case '2':
164 case '3':
165 case '4':
166 case '5':
167 case '6':
168 case '7':
169 case '8':
170 case '9':
171 j->serial += (str[i] - 48) * place;
172 break;
173 case 'A':
174 case 'B':
175 case 'C':
176 case 'D':
177 case 'E':
178 case 'F':
179 j->serial += (str[i] - 55) * place;
180 break;
181 case 'a':
182 case 'b':
183 case 'c':
184 case 'd':
185 case 'e':
186 case 'f':
187 j->serial += (str[i] - 87) * place;
188 break;
189 }
190 place = place * 0x10;
191 }
192 str = str + strlen(str) + 1;
193 printk(" version %s\n", str);
194 cs_failed:
195 return;
196 }
197
ixj_config(dev_link_t * link)198 static void ixj_config(dev_link_t * link)
199 {
200 IXJ *j;
201 client_handle_t handle;
202 ixj_info_t *info;
203 tuple_t tuple;
204 u_short buf[128];
205 cisparse_t parse;
206 config_info_t conf;
207 cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
208 cistpl_cftable_entry_t dflt =
209 {
210 0
211 };
212 int last_ret, last_fn;
213 handle = link->handle;
214 info = link->priv;
215 DEBUG(0, "ixj_config(0x%p)\n", link);
216 tuple.TupleData = (cisdata_t *) buf;
217 tuple.TupleOffset = 0;
218 tuple.TupleDataMax = 255;
219 tuple.Attributes = 0;
220 tuple.DesiredTuple = CISTPL_CONFIG;
221 CS_CHECK(GetFirstTuple, handle, &tuple);
222 CS_CHECK(GetTupleData, handle, &tuple);
223 CS_CHECK(ParseTuple, handle, &tuple, &parse);
224 link->conf.ConfigBase = parse.config.base;
225 link->conf.Present = parse.config.rmask[0];
226 link->state |= DEV_CONFIG;
227 CS_CHECK(GetConfigurationInfo, handle, &conf);
228 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
229 tuple.Attributes = 0;
230 CS_CHECK(GetFirstTuple, handle, &tuple);
231 while (1) {
232 CFG_CHECK(GetTupleData, handle, &tuple);
233 CFG_CHECK(ParseTuple, handle, &tuple, &parse);
234 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
235 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
236 link->conf.ConfigIndex = cfg->index;
237 link->io.BasePort1 = io->win[0].base;
238 link->io.NumPorts1 = io->win[0].len;
239 if (io->nwin == 2) {
240 link->io.BasePort2 = io->win[1].base;
241 link->io.NumPorts2 = io->win[1].len;
242 }
243 CFG_CHECK(RequestIO, link->handle, &link->io);
244 /* If we've got this far, we're done */
245 break;
246 }
247 next_entry:
248 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
249 dflt = *cfg;
250 CS_CHECK(GetNextTuple, handle, &tuple);
251 }
252
253 CS_CHECK(RequestConfiguration, handle, &link->conf);
254
255 /*
256 * Register the card with the core.
257 */
258 j=ixj_pcmcia_probe(link->io.BasePort1,link->io.BasePort1 + 0x10);
259
260 info->ndev = 1;
261 info->node.major = PHONE_MAJOR;
262 link->dev = &info->node;
263 ixj_get_serial(link, j);
264 link->state &= ~DEV_CONFIG_PENDING;
265 return;
266 cs_failed:
267 cs_error(link->handle, last_fn, last_ret);
268 ixj_cs_release((u_long) link);
269 }
270
ixj_cs_release(u_long arg)271 static void ixj_cs_release(u_long arg)
272 {
273 dev_link_t *link = (dev_link_t *) arg;
274 ixj_info_t *info = link->priv;
275 DEBUG(0, "ixj_cs_release(0x%p)\n", link);
276 info->ndev = 0;
277 link->dev = NULL;
278 CardServices(ReleaseConfiguration, link->handle);
279 CardServices(ReleaseIO, link->handle, &link->io);
280 link->state &= ~DEV_CONFIG;
281 }
282
ixj_event(event_t event,int priority,event_callback_args_t * args)283 static int ixj_event(event_t event, int priority, event_callback_args_t * args)
284 {
285 dev_link_t *link = args->client_data;
286 DEBUG(1, "ixj_event(0x%06x)\n", event);
287 switch (event) {
288 case CS_EVENT_CARD_REMOVAL:
289 link->state &= ~DEV_PRESENT;
290 if (link->state & DEV_CONFIG) {
291 link->release.expires = jiffies + (HZ / 20);
292 link->state |= DEV_RELEASE_PENDING;
293 add_timer(&link->release);
294 }
295 break;
296 case CS_EVENT_CARD_INSERTION:
297 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
298 ixj_config(link);
299 break;
300 case CS_EVENT_PM_SUSPEND:
301 link->state |= DEV_SUSPEND;
302 /* Fall through... */
303 case CS_EVENT_RESET_PHYSICAL:
304 if (link->state & DEV_CONFIG)
305 CardServices(ReleaseConfiguration, link->handle);
306 break;
307 case CS_EVENT_PM_RESUME:
308 link->state &= ~DEV_SUSPEND;
309 /* Fall through... */
310 case CS_EVENT_CARD_RESET:
311 if (DEV_OK(link))
312 CardServices(RequestConfiguration, link->handle, &link->conf);
313 break;
314 }
315 return 0;
316 }
317
ixj_register_pcmcia(void)318 int __init ixj_register_pcmcia(void)
319 {
320 servinfo_t serv;
321 DEBUG(0, "%s\n", version);
322 CardServices(GetCardServicesInfo, &serv);
323 if (serv.Revision != CS_RELEASE_CODE) {
324 printk(KERN_NOTICE "ixj_cs: Card Services release does not match!\n");
325 return -EINVAL;
326 }
327 register_pcmcia_driver(&dev_info, &ixj_attach, &ixj_detach);
328 return 0;
329 }
330
ixj_pcmcia_unload(void)331 static void ixj_pcmcia_unload(void)
332 {
333 DEBUG(0, "ixj_cs: unloading\n");
334 unregister_pcmcia_driver(&dev_info);
335 while (dev_list != NULL)
336 ixj_detach(dev_list);
337 }
338
339 module_init(ixj_register_pcmcia);
340 module_exit(ixj_pcmcia_unload);
341
342 MODULE_LICENSE("GPL");
343
344