drivers/staging/cxt1e1/sbeproc.c

   1 /* Copyright (C) 2004-2005  SBE, Inc.
   2  *
   3  *   This program is free software; you can redistribute it and/or modify
   4  *   it under the terms of the GNU General Public License as published by
   5  *   the Free Software Foundation; either version 2 of the License, or
   6  *   (at your option) any later version.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  */
  13
  14 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  15
  16 #include <linux/types.h>
  17 #include <linux/module.h>
  18 #include <linux/errno.h>
  19 #include <linux/kernel.h>
  20 #include <linux/init.h>
  21 #include <linux/proc_fs.h>
  22 #include <linux/seq_file.h>
  23 #include <linux/sched.h>
  24 #include <asm/uaccess.h>
  25 #include "pmcc4_sysdep.h"
  26 #include "sbecom_inline_linux.h"
  27 #include "pmcc4_private.h"
  28 #include "sbeproc.h"
  29
  30 extern void sbecom_get_brdinfo(ci_t *, struct sbe_brd_info *, u_int8_t *);
  31 extern struct s_hdw_info hdw_info[MAX_BOARDS];
  32
  33 void sbecom_proc_brd_cleanup(ci_t *ci)
  34 {
  35         if (ci->dir_dev) {
  36                 char dir[7 + SBE_IFACETMPL_SIZE + 1];
  37                 snprintf(dir, sizeof(dir), "driver/%s", ci->devname);
  38                 remove_proc_entry("info", ci->dir_dev);
  39                 remove_proc_entry(dir, NULL);
  40                 ci->dir_dev = NULL;
  41         }
  42 }
  43
  44 static void sbecom_proc_get_brdinfo(ci_t *ci, struct sbe_brd_info *bip)
  45 {
  46         hdw_info_t *hi = &hdw_info[ci->brdno];
  47         u_int8_t *bsn = NULL;
  48
  49         switch (hi->promfmt)
  50         {
  51         case PROM_FORMAT_TYPE1:
  52                 bsn = (u_int8_t *) hi->mfg_info.pft1.Serial;
  53                 break;
  54         case PROM_FORMAT_TYPE2:
  55                 bsn = (u_int8_t *) hi->mfg_info.pft2.Serial;
  56                 break;
  57         }
  58
  59         sbecom_get_brdinfo (ci, bip, bsn);
  60
  61         pr_devel(">> sbecom_get_brdinfo: returned, first_if %p <%s> last_if %p <%s>\n",
  62                  bip->first_iname, bip->first_iname,
  63                  bip->last_iname, bip->last_iname);
  64 }
  65
  66 /*
  67  * Describe the driver state through /proc
  68  */
  69 static int sbecom_proc_get_sbe_info(struct seq_file *m, void *v)
  70 {
  71         ci_t       *ci = m->private;
  72         char       *spd;
  73         struct sbe_brd_info *bip;
  74
  75         bip = kzalloc(sizeof(struct sbe_brd_info), GFP_KERNEL | GFP_DMA);
  76         if (!bip)
  77                 return -ENOMEM;
  78
  79         pr_devel(">> sbecom_proc_get_sbe_info: entered\n");
  80
  81         sbecom_proc_get_brdinfo(ci, bip);
  82
  83         seq_puts(m, "Board Type:    ");
  84         switch (bip->brd_id) {
  85         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T3):
  86                 seq_puts(m, "wanPMC-C1T3");
  87                 break;
  88         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_256T3_E1):
  89                 seq_puts(m, "wanPTMC-256T3 <E1>");
  90                 break;
  91         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_256T3_T1):
  92                 seq_puts(m, "wanPTMC-256T3 <T1>");
  93                 break;
  94         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_C24TE1):
  95                 seq_puts(m, "wanPTMC-C24TE1");
  96                 break;
  97
  98         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C4T1E1):
  99         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C4T1E1_L):
 100                 seq_puts(m, "wanPMC-C4T1E1");
 101                 break;
 102         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C2T1E1):
 103         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C2T1E1_L):
 104                 seq_puts(m, "wanPMC-C2T1E1");
 105                 break;
 106         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T1E1):
 107         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T1E1_L):
 108                 seq_puts(m, "wanPMC-C1T1E1");
 109                 break;
 110
 111         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C4T1E1):
 112                 seq_puts(m, "wanPCI-C4T1E1");
 113                 break;
 114         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C2T1E1):
 115                 seq_puts(m, "wanPCI-C2T1E1");
 116                 break;
 117         case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C1T1E1):
 118                 seq_puts(m, "wanPCI-C1T1E1");
 119                 break;
 120
 121         default:
 122                 seq_puts(m, "unknown");
 123                 break;
 124         }
 125
 126         seq_printf(m, "  [%08X]\n", bip->brd_id);
 127
 128         seq_printf(m, "Board Number:  %d\n", bip->brdno);
 129         seq_printf(m, "Hardware ID:   0x%02X\n", ci->hdw_bid);
 130         seq_printf(m, "Board SN:      %06X\n", bip->brd_sn);
 131         seq_printf(m, "Board MAC:     %pMF\n", bip->brd_mac_addr);
 132         seq_printf(m, "Ports:         %d\n", ci->max_port);
 133         seq_printf(m, "Channels:      %d\n", bip->brd_chan_cnt);
 134 #if 1
 135         seq_printf(m, "Interface:     %s -> %s\n",
 136                    bip->first_iname, bip->last_iname);
 137 #else
 138         seq_printf(m, "Interface:     <not available> 1st %p lst %p\n",
 139                    bip->first_iname, bip->last_iname);
 140 #endif
 141
 142         switch (bip->brd_pci_speed) {
 143         case BINFO_PCI_SPEED_33:
 144                 spd = "33Mhz";
 145                 break;
 146         case BINFO_PCI_SPEED_66:
 147                 spd = "66Mhz";
 148                 break;
 149         default:
 150                 spd = "<not available>";
 151                 break;
 152         }
 153         seq_printf(m, "PCI Bus Speed: %s\n", spd);
 154
 155 #ifdef SBE_PMCC4_ENABLE
 156         {
 157                 extern int cxt1e1_max_mru;
 158 #if 0
 159                 extern int max_chans_used;
 160                 extern int cxt1e1_max_mtu;
 161 #endif
 162                 extern int max_rxdesc_used, max_txdesc_used;
 163
 164                 seq_printf(m, "\ncxt1e1_max_mru:         %d\n", cxt1e1_max_mru);
 165 #if 0
 166                 seq_printf(m, "\nmax_chans_used:  %d\n", max_chans_used);
 167                 seq_printf(m, "cxt1e1_max_mtu:         %d\n", cxt1e1_max_mtu);
 168 #endif
 169                 seq_printf(m, "max_rxdesc_used: %d\n", max_rxdesc_used);
 170                 seq_printf(m, "max_txdesc_used: %d\n", max_txdesc_used);
 171         }
 172 #endif
 173
 174         kfree(bip);
 175
 176         pr_devel(">> proc_fs: finished\n");
 177         return 0;
 178 }
 179
 180 /*
 181  * seq_file wrappers for procfile show routines.
 182  */
 183 static int sbecom_proc_open(struct inode *inode, struct file *file)
 184 {
 185         return single_open(file, sbecom_proc_get_sbe_info, PDE_DATA(inode));
 186 }
 187
 188 static const struct file_operations sbecom_proc_fops = {
 189         .open           = sbecom_proc_open,
 190         .read           = seq_read,
 191         .llseek         = seq_lseek,
 192         .release        = single_release,
 193 };
 194
 195 /*
 196  * Initialize the /proc subsystem for the specific SBE driver
 197  */
 198 int __init sbecom_proc_brd_init(ci_t *ci)
 199 {
 200         char dir[7 + SBE_IFACETMPL_SIZE + 1];
 201
 202         snprintf(dir, sizeof(dir), "driver/%s", ci->devname);
 203         ci->dir_dev = proc_mkdir(dir, NULL);
 204         if (!ci->dir_dev) {
 205                 pr_err("Unable to create directory /proc/driver/%s\n", ci->devname);
 206                 goto fail;
 207         }
 208
 209         if (!proc_create_data("info", S_IFREG | S_IRUGO, ci->dir_dev,
 210                               &sbecom_proc_fops, ci)) {
 211                 pr_err("Unable to create entry /proc/driver/%s/info\n", ci->devname);
 212                 goto fail;
 213         }
 214         return 0;
 215
 216 fail:
 217         sbecom_proc_brd_cleanup(ci);
 218         return 1;
 219 }