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