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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/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->f_path.dentry->d_inode)->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->f_path.dentry->d_inode)->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->f_path.dentry->d_inode)->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 }