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Merge tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / isdn / hardware / eicon / divasproc.c
1 /* $Id: divasproc.c,v 1.19.4.3 2005/01/31 12:22:20 armin Exp $
2 *
3 * Low level driver for Eicon DIVA Server ISDN cards.
4 * /proc functions
5 *
6 * Copyright 2000-2003 by Armin Schindler (mac@melware.de)
7 * Copyright 2000-2003 Cytronics & Melware (info@melware.de)
8 *
9 * This software may be used and distributed according to the terms
10 * of the GNU General Public License, incorporated herein by reference.
11 */
12
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/poll.h>
16 #include <linux/proc_fs.h>
17 #include <linux/seq_file.h>
18 #include <linux/list.h>
19 #include <asm/uaccess.h>
20
21 #include "platform.h"
22 #include "debuglib.h"
23 #undef ID_MASK
24 #undef N_DATA
25 #include "pc.h"
26 #include "di_defs.h"
27 #include "divasync.h"
28 #include "di.h"
29 #include "io.h"
30 #include "xdi_msg.h"
31 #include "xdi_adapter.h"
32 #include "diva.h"
33 #include "diva_pci.h"
34
35
36 extern PISDN_ADAPTER IoAdapters[MAX_ADAPTER];
37 extern void divas_get_version(char *);
38 extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
39
40 /*********************************************************
41 ** Functions for /proc interface / File operations
42 *********************************************************/
43
44 static char *divas_proc_name = "divas";
45 static char *adapter_dir_name = "adapter";
46 static char *info_proc_name = "info";
47 static char *grp_opt_proc_name = "group_optimization";
48 static char *d_l1_down_proc_name = "dynamic_l1_down";
49
50 /*
51 ** "divas" entry
52 */
53
54 extern struct proc_dir_entry *proc_net_eicon;
55 static struct proc_dir_entry *divas_proc_entry = NULL;
56
57 static ssize_t
58 divas_read(struct file *file, char __user *buf, size_t count, loff_t *off)
59 {
60 int len = 0;
61 int cadapter;
62 char tmpbuf[80];
63 char tmpser[16];
64
65 if (*off)
66 return 0;
67
68 divas_get_version(tmpbuf);
69 if (copy_to_user(buf + len, &tmpbuf, strlen(tmpbuf)))
70 return -EFAULT;
71 len += strlen(tmpbuf);
72
73 for (cadapter = 0; cadapter < MAX_ADAPTER; cadapter++) {
74 if (IoAdapters[cadapter]) {
75 diva_get_vserial_number(IoAdapters[cadapter],
76 tmpser);
77 sprintf(tmpbuf,
78 "%2d: %-30s Serial:%-10s IRQ:%2d\n",
79 cadapter + 1,
80 IoAdapters[cadapter]->Properties.Name,
81 tmpser,
82 IoAdapters[cadapter]->irq_info.irq_nr);
83 if ((strlen(tmpbuf) + len) > count)
84 break;
85 if (copy_to_user
86 (buf + len, &tmpbuf,
87 strlen(tmpbuf))) return -EFAULT;
88 len += strlen(tmpbuf);
89 }
90 }
91
92 *off += len;
93 return (len);
94 }
95
96 static ssize_t
97 divas_write(struct file *file, const char __user *buf, size_t count, loff_t *off)
98 {
99 return (-ENODEV);
100 }
101
102 static unsigned int divas_poll(struct file *file, poll_table *wait)
103 {
104 return (POLLERR);
105 }
106
107 static int divas_open(struct inode *inode, struct file *file)
108 {
109 return nonseekable_open(inode, file);
110 }
111
112 static int divas_close(struct inode *inode, struct file *file)
113 {
114 return (0);
115 }
116
117 static const struct file_operations divas_fops = {
118 .owner = THIS_MODULE,
119 .llseek = no_llseek,
120 .read = divas_read,
121 .write = divas_write,
122 .poll = divas_poll,
123 .open = divas_open,
124 .release = divas_close
125 };
126
127 int create_divas_proc(void)
128 {
129 divas_proc_entry = proc_create(divas_proc_name, S_IFREG | S_IRUGO,
130 proc_net_eicon, &divas_fops);
131 if (!divas_proc_entry)
132 return (0);
133
134 return (1);
135 }
136
137 void remove_divas_proc(void)
138 {
139 if (divas_proc_entry) {
140 remove_proc_entry(divas_proc_name, proc_net_eicon);
141 divas_proc_entry = NULL;
142 }
143 }
144
145 static ssize_t grp_opt_proc_write(struct file *file, const char __user *buffer,
146 size_t count, loff_t *pos)
147 {
148 diva_os_xdi_adapter_t *a = PDE(file_inode(file))->data;
149 PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
150
151 if ((count == 1) || (count == 2)) {
152 char c;
153 if (get_user(c, buffer))
154 return -EFAULT;
155 switch (c) {
156 case '0':
157 IoAdapter->capi_cfg.cfg_1 &=
158 ~DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON;
159 break;
160 case '1':
161 IoAdapter->capi_cfg.cfg_1 |=
162 DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON;
163 break;
164 default:
165 return (-EINVAL);
166 }
167 return (count);
168 }
169 return (-EINVAL);
170 }
171
172 static ssize_t d_l1_down_proc_write(struct file *file, const char __user *buffer,
173 size_t count, loff_t *pos)
174 {
175 diva_os_xdi_adapter_t *a = PDE(file_inode(file))->data;
176 PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
177
178 if ((count == 1) || (count == 2)) {
179 char c;
180 if (get_user(c, buffer))
181 return -EFAULT;
182 switch (c) {
183 case '0':
184 IoAdapter->capi_cfg.cfg_1 &=
185 ~DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON;
186 break;
187 case '1':
188 IoAdapter->capi_cfg.cfg_1 |=
189 DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON;
190 break;
191 default:
192 return (-EINVAL);
193 }
194 return (count);
195 }
196 return (-EINVAL);
197 }
198
199 static int d_l1_down_proc_show(struct seq_file *m, void *v)
200 {
201 diva_os_xdi_adapter_t *a = m->private;
202 PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
203
204 seq_printf(m, "%s\n",
205 (IoAdapter->capi_cfg.
206 cfg_1 & DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON) ? "1" :
207 "0");
208 return 0;
209 }
210
211 static int d_l1_down_proc_open(struct inode *inode, struct file *file)
212 {
213 return single_open(file, d_l1_down_proc_show, PDE(inode)->data);
214 }
215
216 static const struct file_operations d_l1_down_proc_fops = {
217 .owner = THIS_MODULE,
218 .open = d_l1_down_proc_open,
219 .read = seq_read,
220 .llseek = seq_lseek,
221 .release = single_release,
222 .write = d_l1_down_proc_write,
223 };
224
225 static int grp_opt_proc_show(struct seq_file *m, void *v)
226 {
227 diva_os_xdi_adapter_t *a = m->private;
228 PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
229
230 seq_printf(m, "%s\n",
231 (IoAdapter->capi_cfg.
232 cfg_1 & DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON)
233 ? "1" : "0");
234 return 0;
235 }
236
237 static int grp_opt_proc_open(struct inode *inode, struct file *file)
238 {
239 return single_open(file, grp_opt_proc_show, PDE(inode)->data);
240 }
241
242 static const struct file_operations grp_opt_proc_fops = {
243 .owner = THIS_MODULE,
244 .open = grp_opt_proc_open,
245 .read = seq_read,
246 .llseek = seq_lseek,
247 .release = single_release,
248 .write = grp_opt_proc_write,
249 };
250
251 static ssize_t info_proc_write(struct file *file, const char __user *buffer,
252 size_t count, loff_t *pos)
253 {
254 diva_os_xdi_adapter_t *a = PDE(file_inode(file))->data;
255 PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
256 char c[4];
257
258 if (count <= 4)
259 return -EINVAL;
260
261 if (copy_from_user(c, buffer, 4))
262 return -EFAULT;
263
264 /* this is for test purposes only */
265 if (!memcmp(c, "trap", 4)) {
266 (*(IoAdapter->os_trap_nfy_Fnc)) (IoAdapter, IoAdapter->ANum);
267 return (count);
268 }
269 return (-EINVAL);
270 }
271
272 static int info_proc_show(struct seq_file *m, void *v)
273 {
274 int i = 0;
275 char *p;
276 char tmpser[16];
277 diva_os_xdi_adapter_t *a = m->private;
278 PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
279
280 seq_printf(m, "Name : %s\n", IoAdapter->Properties.Name);
281 seq_printf(m, "DSP state : %08x\n", a->dsp_mask);
282 seq_printf(m, "Channels : %02d\n", IoAdapter->Properties.Channels);
283 seq_printf(m, "E. max/used : %03d/%03d\n",
284 IoAdapter->e_max, IoAdapter->e_count);
285 diva_get_vserial_number(IoAdapter, tmpser);
286 seq_printf(m, "Serial : %s\n", tmpser);
287 seq_printf(m, "IRQ : %d\n", IoAdapter->irq_info.irq_nr);
288 seq_printf(m, "CardIndex : %d\n", a->CardIndex);
289 seq_printf(m, "CardOrdinal : %d\n", a->CardOrdinal);
290 seq_printf(m, "Controller : %d\n", a->controller);
291 seq_printf(m, "Bus-Type : %s\n",
292 (a->Bus ==
293 DIVAS_XDI_ADAPTER_BUS_ISA) ? "ISA" : "PCI");
294 seq_printf(m, "Port-Name : %s\n", a->port_name);
295 if (a->Bus == DIVAS_XDI_ADAPTER_BUS_PCI) {
296 seq_printf(m, "PCI-bus : %d\n", a->resources.pci.bus);
297 seq_printf(m, "PCI-func : %d\n", a->resources.pci.func);
298 for (i = 0; i < 8; i++) {
299 if (a->resources.pci.bar[i]) {
300 seq_printf(m,
301 "Mem / I/O %d : 0x%x / mapped : 0x%lx",
302 i, a->resources.pci.bar[i],
303 (unsigned long) a->resources.
304 pci.addr[i]);
305 if (a->resources.pci.length[i]) {
306 seq_printf(m,
307 " / length : %d",
308 a->resources.pci.
309 length[i]);
310 }
311 seq_putc(m, '\n');
312 }
313 }
314 }
315 if ((!a->xdi_adapter.port) &&
316 ((!a->xdi_adapter.ram) ||
317 (!a->xdi_adapter.reset)
318 || (!a->xdi_adapter.cfg))) {
319 if (!IoAdapter->irq_info.irq_nr) {
320 p = "slave";
321 } else {
322 p = "out of service";
323 }
324 } else if (a->xdi_adapter.trapped) {
325 p = "trapped";
326 } else if (a->xdi_adapter.Initialized) {
327 p = "active";
328 } else {
329 p = "ready";
330 }
331 seq_printf(m, "State : %s\n", p);
332
333 return 0;
334 }
335
336 static int info_proc_open(struct inode *inode, struct file *file)
337 {
338 return single_open(file, info_proc_show, PDE(inode)->data);
339 }
340
341 static const struct file_operations info_proc_fops = {
342 .owner = THIS_MODULE,
343 .open = info_proc_open,
344 .read = seq_read,
345 .llseek = seq_lseek,
346 .release = single_release,
347 .write = info_proc_write,
348 };
349
350 /*
351 ** adapter proc init/de-init
352 */
353
354 /* --------------------------------------------------------------------------
355 Create adapter directory and files in proc file system
356 -------------------------------------------------------------------------- */
357 int create_adapter_proc(diva_os_xdi_adapter_t *a)
358 {
359 struct proc_dir_entry *de, *pe;
360 char tmp[16];
361
362 sprintf(tmp, "%s%d", adapter_dir_name, a->controller);
363 if (!(de = proc_mkdir(tmp, proc_net_eicon)))
364 return (0);
365 a->proc_adapter_dir = (void *) de;
366
367 pe = proc_create_data(info_proc_name, S_IRUGO | S_IWUSR, de,
368 &info_proc_fops, a);
369 if (!pe)
370 return (0);
371 a->proc_info = (void *) pe;
372
373 pe = proc_create_data(grp_opt_proc_name, S_IRUGO | S_IWUSR, de,
374 &grp_opt_proc_fops, a);
375 if (pe)
376 a->proc_grp_opt = (void *) pe;
377 pe = proc_create_data(d_l1_down_proc_name, S_IRUGO | S_IWUSR, de,
378 &d_l1_down_proc_fops, a);
379 if (pe)
380 a->proc_d_l1_down = (void *) pe;
381
382 DBG_TRC(("proc entry %s created", tmp));
383
384 return (1);
385 }
386
387 /* --------------------------------------------------------------------------
388 Remove adapter directory and files in proc file system
389 -------------------------------------------------------------------------- */
390 void remove_adapter_proc(diva_os_xdi_adapter_t *a)
391 {
392 char tmp[16];
393
394 if (a->proc_adapter_dir) {
395 if (a->proc_d_l1_down) {
396 remove_proc_entry(d_l1_down_proc_name,
397 (struct proc_dir_entry *) a->proc_adapter_dir);
398 }
399 if (a->proc_grp_opt) {
400 remove_proc_entry(grp_opt_proc_name,
401 (struct proc_dir_entry *) a->proc_adapter_dir);
402 }
403 if (a->proc_info) {
404 remove_proc_entry(info_proc_name,
405 (struct proc_dir_entry *) a->proc_adapter_dir);
406 }
407 sprintf(tmp, "%s%d", adapter_dir_name, a->controller);
408 remove_proc_entry(tmp, proc_net_eicon);
409 DBG_TRC(("proc entry %s%d removed", adapter_dir_name,
410 a->controller));
411 }
412 }
kernel source for telekom puls (alcatel/mediatek)