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/config.h>
  14 #include <linux/module.h>
  15 #include <linux/kernel.h>
  16 #include <linux/poll.h>
  17 #include <linux/proc_fs.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 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 = create_proc_entry(divas_proc_name,
 130                                              S_IFREG | S_IRUGO,
 131                                              proc_net_eicon);
 132         if (!divas_proc_entry)
 133                 return (0);
 134
 135         divas_proc_entry->proc_fops = &divas_fops;
 136         divas_proc_entry->owner = THIS_MODULE;
 137
 138         return (1);
 139 }
 140
 141 void remove_divas_proc(void)
 142 {
 143         if (divas_proc_entry) {
 144                 remove_proc_entry(divas_proc_name, proc_net_eicon);
 145                 divas_proc_entry = NULL;
 146         }
 147 }
 148
 149 /*
 150 ** write group_optimization
 151 */
 152 static int
 153 write_grp_opt(struct file *file, const char __user *buffer, unsigned long count,
 154               void *data)
 155 {
 156         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 157         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 158
 159         if ((count == 1) || (count == 2)) {
 160                 char c;
 161                 if (get_user(c, buffer))
 162                         return -EFAULT;
 163                 switch (c) {
 164                 case '0':
 165                         IoAdapter->capi_cfg.cfg_1 &=
 166                             ~DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON;
 167                         break;
 168                 case '1':
 169                         IoAdapter->capi_cfg.cfg_1 |=
 170                             DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON;
 171                         break;
 172                 default:
 173                         return (-EINVAL);
 174                 }
 175                 return (count);
 176         }
 177         return (-EINVAL);
 178 }
 179
 180 /*
 181 ** write dynamic_l1_down
 182 */
 183 static int
 184 write_d_l1_down(struct file *file, const char __user *buffer, unsigned long count,
 185                 void *data)
 186 {
 187         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 188         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 189
 190         if ((count == 1) || (count == 2)) {
 191                 char c;
 192                 if (get_user(c, buffer))
 193                         return -EFAULT;
 194                 switch (c) {
 195                 case '0':
 196                         IoAdapter->capi_cfg.cfg_1 &=
 197                             ~DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON;
 198                         break;
 199                 case '1':
 200                         IoAdapter->capi_cfg.cfg_1 |=
 201                             DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON;
 202                         break;
 203                 default:
 204                         return (-EINVAL);
 205                 }
 206                 return (count);
 207         }
 208         return (-EINVAL);
 209 }
 210
 211
 212 /*
 213 ** read dynamic_l1_down
 214 */
 215 static int
 216 read_d_l1_down(char *page, char **start, off_t off, int count, int *eof,
 217                void *data)
 218 {
 219         int len = 0;
 220         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 221         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 222
 223         len += sprintf(page + len, "%s\n",
 224                        (IoAdapter->capi_cfg.
 225                         cfg_1 & DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON) ? "1" :
 226                        "0");
 227
 228         if (off + count >= len)
 229                 *eof = 1;
 230         if (len < off)
 231                 return 0;
 232         *start = page + off;
 233         return ((count < len - off) ? count : len - off);
 234 }
 235
 236 /*
 237 ** read group_optimization
 238 */
 239 static int
 240 read_grp_opt(char *page, char **start, off_t off, int count, int *eof,
 241              void *data)
 242 {
 243         int len = 0;
 244         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 245         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 246
 247         len += sprintf(page + len, "%s\n",
 248                        (IoAdapter->capi_cfg.
 249                         cfg_1 & DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON)
 250                        ? "1" : "0");
 251
 252         if (off + count >= len)
 253                 *eof = 1;
 254         if (len < off)
 255                 return 0;
 256         *start = page + off;
 257         return ((count < len - off) ? count : len - off);
 258 }
 259
 260 /*
 261 ** info write
 262 */
 263 static int
 264 info_write(struct file *file, const char __user *buffer, unsigned long count,
 265            void *data)
 266 {
 267         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 268         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 269         char c[4];
 270
 271         if (count <= 4)
 272                 return -EINVAL;
 273
 274         if (copy_from_user(c, buffer, 4))
 275                 return -EFAULT;
 276
 277         /* this is for test purposes only */
 278         if (!memcmp(c, "trap", 4)) {
 279                 (*(IoAdapter->os_trap_nfy_Fnc)) (IoAdapter, IoAdapter->ANum);
 280                 return (count);
 281         }
 282         return (-EINVAL);
 283 }
 284
 285 /*
 286 ** info read
 287 */
 288 static int
 289 info_read(char *page, char **start, off_t off, int count, int *eof,
 290           void *data)
 291 {
 292         int i = 0;
 293         int len = 0;
 294         char *p;
 295         char tmpser[16];
 296         diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) data;
 297         PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1];
 298
 299         len +=
 300             sprintf(page + len, "Name        : %s\n",
 301                     IoAdapter->Properties.Name);
 302         len += sprintf(page + len, "DSP state   : %08x\n", a->dsp_mask);
 303         len += sprintf(page + len, "Channels    : %02d\n",
 304                        IoAdapter->Properties.Channels);
 305         len += sprintf(page + len, "E. max/used : %03d/%03d\n",
 306                        IoAdapter->e_max, IoAdapter->e_count);
 307         diva_get_vserial_number(IoAdapter, tmpser);
 308         len += sprintf(page + len, "Serial      : %s\n", tmpser);
 309         len +=
 310             sprintf(page + len, "IRQ         : %d\n",
 311                     IoAdapter->irq_info.irq_nr);
 312         len += sprintf(page + len, "CardIndex   : %d\n", a->CardIndex);
 313         len += sprintf(page + len, "CardOrdinal : %d\n", a->CardOrdinal);
 314         len += sprintf(page + len, "Controller  : %d\n", a->controller);
 315         len += sprintf(page + len, "Bus-Type    : %s\n",
 316                        (a->Bus ==
 317                         DIVAS_XDI_ADAPTER_BUS_ISA) ? "ISA" : "PCI");
 318         len += sprintf(page + len, "Port-Name   : %s\n", a->port_name);
 319         if (a->Bus == DIVAS_XDI_ADAPTER_BUS_PCI) {
 320                 len +=
 321                     sprintf(page + len, "PCI-bus     : %d\n",
 322                             a->resources.pci.bus);
 323                 len +=
 324                     sprintf(page + len, "PCI-func    : %d\n",
 325                             a->resources.pci.func);
 326                 for (i = 0; i < 8; i++) {
 327                         if (a->resources.pci.bar[i]) {
 328                                 len +=
 329                                     sprintf(page + len,
 330                                             "Mem / I/O %d : 0x%x / mapped : 0x%lx",
 331                                             i, a->resources.pci.bar[i],
 332                                             (unsigned long) a->resources.
 333                                             pci.addr[i]);
 334                                 if (a->resources.pci.length[i]) {
 335                                         len +=
 336                                             sprintf(page + len,
 337                                                     " / length : %d",
 338                                                     a->resources.pci.
 339                                                     length[i]);
 340                                 }
 341                                 len += sprintf(page + len, "\n");
 342                         }
 343                 }
 344         }
 345         if ((!a->xdi_adapter.port) &&
 346             ((!a->xdi_adapter.ram) ||
 347             (!a->xdi_adapter.reset)
 348              || (!a->xdi_adapter.cfg))) {
 349                 if (!IoAdapter->irq_info.irq_nr) {
 350                         p = "slave";
 351                 } else {
 352                         p = "out of service";
 353                 }
 354         } else if (a->xdi_adapter.trapped) {
 355                 p = "trapped";
 356         } else if (a->xdi_adapter.Initialized) {
 357                 p = "active";
 358         } else {
 359                 p = "ready";
 360         }
 361         len += sprintf(page + len, "State       : %s\n", p);
 362
 363         if (off + count >= len)
 364                 *eof = 1;
 365         if (len < off)
 366                 return 0;
 367         *start = page + off;
 368         return ((count < len - off) ? count : len - off);
 369 }
 370
 371 /*
 372 ** adapter proc init/de-init
 373 */
 374
 375 /* --------------------------------------------------------------------------
 376     Create adapter directory and files in proc file system
 377    -------------------------------------------------------------------------- */
 378 int create_adapter_proc(diva_os_xdi_adapter_t * a)
 379 {
 380         struct proc_dir_entry *de, *pe;
 381         char tmp[16];
 382
 383         sprintf(tmp, "%s%d", adapter_dir_name, a->controller);
 384         if (!(de = proc_mkdir(tmp, proc_net_eicon)))
 385                 return (0);
 386         a->proc_adapter_dir = (void *) de;
 387
 388         if (!(pe =
 389              create_proc_entry(info_proc_name, S_IFREG | S_IRUGO | S_IWUSR, de)))
 390                 return (0);
 391         a->proc_info = (void *) pe;
 392         pe->write_proc = info_write;
 393         pe->read_proc = info_read;
 394         pe->data = a;
 395
 396         if ((pe = create_proc_entry(grp_opt_proc_name,
 397                                S_IFREG | S_IRUGO | S_IWUSR, de))) {
 398                 a->proc_grp_opt = (void *) pe;
 399                 pe->write_proc = write_grp_opt;
 400                 pe->read_proc = read_grp_opt;
 401                 pe->data = a;
 402         }
 403         if ((pe = create_proc_entry(d_l1_down_proc_name,
 404                                S_IFREG | S_IRUGO | S_IWUSR, de))) {
 405                 a->proc_d_l1_down = (void *) pe;
 406                 pe->write_proc = write_d_l1_down;
 407                 pe->read_proc = read_d_l1_down;
 408                 pe->data = a;
 409         }
 410
 411         DBG_TRC(("proc entry %s created", tmp));
 412
 413         return (1);
 414 }
 415
 416 /* --------------------------------------------------------------------------
 417     Remove adapter directory and files in proc file system
 418    -------------------------------------------------------------------------- */
 419 void remove_adapter_proc(diva_os_xdi_adapter_t * a)
 420 {
 421         char tmp[16];
 422
 423         if (a->proc_adapter_dir) {
 424                 if (a->proc_d_l1_down) {
 425                         remove_proc_entry(d_l1_down_proc_name,
 426                                           (struct proc_dir_entry *) a->proc_adapter_dir);
 427                 }
 428                 if (a->proc_grp_opt) {
 429                         remove_proc_entry(grp_opt_proc_name,
 430                                           (struct proc_dir_entry *) a->proc_adapter_dir);
 431                 }
 432                 if (a->proc_info) {
 433                         remove_proc_entry(info_proc_name,
 434                                           (struct proc_dir_entry *) a->proc_adapter_dir);
 435                 }
 436                 sprintf(tmp, "%s%d", adapter_dir_name, a->controller);
 437                 remove_proc_entry(tmp, proc_net_eicon);
 438                 DBG_TRC(("proc entry %s%d removed", adapter_dir_name,
 439                          a->controller));
 440         }
 441 }