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/list.h>
  18 #include <asm/uaccess.h>
  19
  20 #include "platform.h"
  21 #include "debuglib.h"
  22 #undef ID_MASK
  23 #undef N_DATA
  24 #include "pc.h"
  25 #include "di_defs.h"
  26 #include "divasync.h"
  27 #include "di.h"
  28 #include "io.h"
  29 #include "xdi_msg.h"
  30 #include "xdi_adapter.h"
  31 #include "diva.h"
  32 #include "diva_pci.h"
  33
  34
  35 extern PISDN_ADAPTER IoAdapters[MAX_ADAPTER];
  36 extern void divas_get_version(char *);
  37 extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
  38
  39 /*********************************************************
  40  ** Functions for /proc interface / File operations
  41  *********************************************************/
  42
  43 static char *divas_proc_name = "divas";
  44 static char *adapter_dir_name = "adapter";
  45 static char *info_proc_name = "info";
  46 static char *grp_opt_proc_name = "group_optimization";
  47 static char *d_l1_down_proc_name = "dynamic_l1_down";
  48
  49 /*
  50 ** "divas" entry
  51 */
  52
  53 extern struct proc_dir_entry *proc_net_eicon;
  54 static struct proc_dir_entry *divas_proc_entry = NULL;
  55
  56 static ssize_t
  57 divas_read(struct file *file, char __user *buf, size_t count, loff_t * off)
  58 {
  59         int len = 0;
  60         int cadapter;
  61         char tmpbuf[80];
  62         char tmpser[16];
  63
  64         if (*off)
  65                 return 0;
  66
  67         divas_get_version(tmpbuf);
  68         if (copy_to_user(buf + len, &tmpbuf, strlen(tmpbuf)))
  69                 return -EFAULT;
  70         len += strlen(tmpbuf);
  71
  72         for (cadapter = 0; cadapter < MAX_ADAPTER; cadapter++) {
  73                 if (IoAdapters[cadapter]) {
  74                         diva_get_vserial_number(IoAdapters[cadapter],
  75                                                 tmpser);
  76                         sprintf(tmpbuf,
  77                                 "%2d: %-30s Serial:%-10s IRQ:%2d\n",
  78                                 cadapter + 1,
  79                                 IoAdapters[cadapter]->Properties.Name,
  80                                 tmpser,
  81                                 IoAdapters[cadapter]->irq_info.irq_nr);
  82                         if ((strlen(tmpbuf) + len) > count)
  83                                 break;
  84                         if (copy_to_user
  85                             (buf + len, &tmpbuf,
  86                              strlen(tmpbuf))) return -EFAULT;
  87                         len += strlen(tmpbuf);
  88                 }
  89         }
  90
  91         *off += len;
  92         return (len);
  93 }
  94
  95 static ssize_t
  96 divas_write(struct file *file, const char __user *buf, size_t count, loff_t * off)
  97 {
  98         return (-ENODEV);
  99 }
 100
 101 static unsigned int divas_poll(struct file *file, poll_table * wait)
 102 {
 103         return (POLLERR);
 104 }
 105
 106 static int divas_open(struct inode *inode, struct file *file)
 107 {
 108         return nonseekable_open(inode, file);
 109 }
 110
 111 static int divas_close(struct inode *inode, struct file *file)
 112 {
 113         return (0);
 114 }
 115
 116 static const struct file_operations divas_fops = {
 117         .owner   = THIS_MODULE,
 118         .llseek  = no_llseek,
 119         .read    = divas_read,
 120         .write   = divas_write,
 121         .poll    = divas_poll,
 122         .open    = divas_open,
 123         .release = divas_close
 124 };
 125
 126 int create_divas_proc(void)
 127 {
 128         divas_proc_entry = create_proc_entry(divas_proc_name,
 129                                              S_IFREG | S_IRUGO,
 130                                              proc_net_eicon);
 131         if (!divas_proc_entry)
 132                 return (0);
 133
 134         divas_proc_entry->proc_fops = &divas_fops;
 135         divas_proc_entry->owner = THIS_MODULE;
 136
 137         return (1);
 138 }
 139
 140 void remove_divas_proc(void)
 141 {
 142         if (divas_proc_entry) {
 143                 remove_proc_entry(divas_proc_name, proc_net_eicon);
 144                 divas_proc_entry = NULL;
 145         }
 146 }
 147
 148 /*
 149 ** write group_optimization
 150 */
 151 static int
 152 write_grp_opt(struct file *file, const char __user *buffer, unsigned long count,
 153               void *data)
 154 {
 155         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 156         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 157
 158         if ((count == 1) || (count == 2)) {
 159                 char c;
 160                 if (get_user(c, buffer))
 161                         return -EFAULT;
 162                 switch (c) {
 163                 case '0':
 164                         IoAdapter->capi_cfg.cfg_1 &=
 165                             ~DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON;
 166                         break;
 167                 case '1':
 168                         IoAdapter->capi_cfg.cfg_1 |=
 169                             DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON;
 170                         break;
 171                 default:
 172                         return (-EINVAL);
 173                 }
 174                 return (count);
 175         }
 176         return (-EINVAL);
 177 }
 178
 179 /*
 180 ** write dynamic_l1_down
 181 */
 182 static int
 183 write_d_l1_down(struct file *file, const char __user *buffer, unsigned long count,
 184                 void *data)
 185 {
 186         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 187         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 188
 189         if ((count == 1) || (count == 2)) {
 190                 char c;
 191                 if (get_user(c, buffer))
 192                         return -EFAULT;
 193                 switch (c) {
 194                 case '0':
 195                         IoAdapter->capi_cfg.cfg_1 &=
 196                             ~DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON;
 197                         break;
 198                 case '1':
 199                         IoAdapter->capi_cfg.cfg_1 |=
 200                             DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON;
 201                         break;
 202                 default:
 203                         return (-EINVAL);
 204                 }
 205                 return (count);
 206         }
 207         return (-EINVAL);
 208 }
 209
 210
 211 /*
 212 ** read dynamic_l1_down
 213 */
 214 static int
 215 read_d_l1_down(char *page, char **start, off_t off, int count, int *eof,
 216                void *data)
 217 {
 218         int len = 0;
 219         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 220         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 221
 222         len += sprintf(page + len, "%s\n",
 223                        (IoAdapter->capi_cfg.
 224                         cfg_1 & DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON) ? "1" :
 225                        "0");
 226
 227         if (off + count >= len)
 228                 *eof = 1;
 229         if (len < off)
 230                 return 0;
 231         *start = page + off;
 232         return ((count < len - off) ? count : len - off);
 233 }
 234
 235 /*
 236 ** read group_optimization
 237 */
 238 static int
 239 read_grp_opt(char *page, char **start, off_t off, int count, int *eof,
 240              void *data)
 241 {
 242         int len = 0;
 243         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 244         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 245
 246         len += sprintf(page + len, "%s\n",
 247                        (IoAdapter->capi_cfg.
 248                         cfg_1 & DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON)
 249                        ? "1" : "0");
 250
 251         if (off + count >= len)
 252                 *eof = 1;
 253         if (len < off)
 254                 return 0;
 255         *start = page + off;
 256         return ((count < len - off) ? count : len - off);
 257 }
 258
 259 /*
 260 ** info write
 261 */
 262 static int
 263 info_write(struct file *file, const char __user *buffer, unsigned long count,
 264            void *data)
 265 {
 266         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 267         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 268         char c[4];
 269
 270         if (count <= 4)
 271                 return -EINVAL;
 272
 273         if (copy_from_user(c, buffer, 4))
 274                 return -EFAULT;
 275
 276         /* this is for test purposes only */
 277         if (!memcmp(c, "trap", 4)) {
 278                 (*(IoAdapter->os_trap_nfy_Fnc)) (IoAdapter, IoAdapter->ANum);
 279                 return (count);
 280         }
 281         return (-EINVAL);
 282 }
 283
 284 /*
 285 ** info read
 286 */
 287 static int
 288 info_read(char *page, char **start, off_t off, int count, int *eof,
 289           void *data)
 290 {
 291         int i = 0;
 292         int len = 0;
 293         char *p;
 294         char tmpser[16];
 295         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 296         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 297
 298         len +=
 299             sprintf(page + len, "Name        : %s\n",
 300                     IoAdapter->Properties.Name);
 301         len += sprintf(page + len, "DSP state   : %08x\n", a->dsp_mask);
 302         len += sprintf(page + len, "Channels    : %02d\n",
 303                        IoAdapter->Properties.Channels);
 304         len += sprintf(page + len, "E. max/used : %03d/%03d\n",
 305                        IoAdapter->e_max, IoAdapter->e_count);
 306         diva_get_vserial_number(IoAdapter, tmpser);
 307         len += sprintf(page + len, "Serial      : %s\n", tmpser);
 308         len +=
 309             sprintf(page + len, "IRQ         : %d\n",
 310                     IoAdapter->irq_info.irq_nr);
 311         len += sprintf(page + len, "CardIndex   : %d\n", a->CardIndex);
 312         len += sprintf(page + len, "CardOrdinal : %d\n", a->CardOrdinal);
 313         len += sprintf(page + len, "Controller  : %d\n", a->controller);
 314         len += sprintf(page + len, "Bus-Type    : %s\n",
 315                        (a->Bus ==
 316                         DIVAS_XDI_ADAPTER_BUS_ISA) ? "ISA" : "PCI");
 317         len += sprintf(page + len, "Port-Name   : %s\n", a->port_name);
 318         if (a->Bus == DIVAS_XDI_ADAPTER_BUS_PCI) {
 319                 len +=
 320                     sprintf(page + len, "PCI-bus     : %d\n",
 321                             a->resources.pci.bus);
 322                 len +=
 323                     sprintf(page + len, "PCI-func    : %d\n",
 324                             a->resources.pci.func);
 325                 for (i = 0; i < 8; i++) {
 326                         if (a->resources.pci.bar[i]) {
 327                                 len +=
 328                                     sprintf(page + len,
 329                                             "Mem / I/O %d : 0x%x / mapped : 0x%lx",
 330                                             i, a->resources.pci.bar[i],
 331                                             (unsigned long) a->resources.
 332                                             pci.addr[i]);
 333                                 if (a->resources.pci.length[i]) {
 334                                         len +=
 335                                             sprintf(page + len,
 336                                                     " / length : %d",
 337                                                     a->resources.pci.
 338                                                     length[i]);
 339                                 }
 340                                 len += sprintf(page + len, "\n");
 341                         }
 342                 }
 343         }
 344         if ((!a->xdi_adapter.port) &&
 345             ((!a->xdi_adapter.ram) ||
 346             (!a->xdi_adapter.reset)
 347              || (!a->xdi_adapter.cfg))) {
 348                 if (!IoAdapter->irq_info.irq_nr) {
 349                         p = "slave";
 350                 } else {
 351                         p = "out of service";
 352                 }
 353         } else if (a->xdi_adapter.trapped) {
 354                 p = "trapped";
 355         } else if (a->xdi_adapter.Initialized) {
 356                 p = "active";
 357         } else {
 358                 p = "ready";
 359         }
 360         len += sprintf(page + len, "State       : %s\n", p);
 361
 362         if (off + count >= len)
 363                 *eof = 1;
 364         if (len < off)
 365                 return 0;
 366         *start = page + off;
 367         return ((count < len - off) ? count : len - off);
 368 }
 369
 370 /*
 371 ** adapter proc init/de-init
 372 */
 373
 374 /* --------------------------------------------------------------------------
 375     Create adapter directory and files in proc file system
 376    -------------------------------------------------------------------------- */
 377 int create_adapter_proc(diva_os_xdi_adapter_t * a)
 378 {
 379         struct proc_dir_entry *de, *pe;
 380         char tmp[16];
 381
 382         sprintf(tmp, "%s%d", adapter_dir_name, a->controller);
 383         if (!(de = proc_mkdir(tmp, proc_net_eicon)))
 384                 return (0);
 385         a->proc_adapter_dir = (void *) de;
 386
 387         if (!(pe =
 388              create_proc_entry(info_proc_name, S_IFREG | S_IRUGO | S_IWUSR, de)))
 389                 return (0);
 390         a->proc_info = (void *) pe;
 391         pe->write_proc = info_write;
 392         pe->read_proc = info_read;
 393         pe->data = a;
 394
 395         if ((pe = create_proc_entry(grp_opt_proc_name,
 396                                S_IFREG | S_IRUGO | S_IWUSR, de))) {
 397                 a->proc_grp_opt = (void *) pe;
 398                 pe->write_proc = write_grp_opt;
 399                 pe->read_proc = read_grp_opt;
 400                 pe->data = a;
 401         }
 402         if ((pe = create_proc_entry(d_l1_down_proc_name,
 403                                S_IFREG | S_IRUGO | S_IWUSR, de))) {
 404                 a->proc_d_l1_down = (void *) pe;
 405                 pe->write_proc = write_d_l1_down;
 406                 pe->read_proc = read_d_l1_down;
 407                 pe->data = a;
 408         }
 409
 410         DBG_TRC(("proc entry %s created", tmp));
 411
 412         return (1);
 413 }
 414
 415 /* --------------------------------------------------------------------------
 416     Remove adapter directory and files in proc file system
 417    -------------------------------------------------------------------------- */
 418 void remove_adapter_proc(diva_os_xdi_adapter_t * a)
 419 {
 420         char tmp[16];
 421
 422         if (a->proc_adapter_dir) {
 423                 if (a->proc_d_l1_down) {
 424                         remove_proc_entry(d_l1_down_proc_name,
 425                                           (struct proc_dir_entry *) a->proc_adapter_dir);
 426                 }
 427                 if (a->proc_grp_opt) {
 428                         remove_proc_entry(grp_opt_proc_name,
 429                                           (struct proc_dir_entry *) a->proc_adapter_dir);
 430                 }
 431                 if (a->proc_info) {
 432                         remove_proc_entry(info_proc_name,
 433                                           (struct proc_dir_entry *) a->proc_adapter_dir);
 434                 }
 435                 sprintf(tmp, "%s%d", adapter_dir_name, a->controller);
 436                 remove_proc_entry(tmp, proc_net_eicon);
 437                 DBG_TRC(("proc entry %s%d removed", adapter_dir_name,
 438                          a->controller));
 439         }
 440 }