drivers/staging/ft1000/ft1000-usb/ft1000_proc.c

   1 /*
   2  * ft1000_proc.c - ft1000 proc interface
   3  *
   4  * Copyright    (C) 2009-2010 Quintec
   5  *              (C) 2010 Open-nandra
   6  *      <marek.belisko@open-nandra.com>
   7  *
   8  * This file is subject to the terms and conditions of the GNU General
   9  * Public License. See the file "COPYING" in the main directory of this
  10  * archive for more details.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/kernel.h>
  24 #include <linux/proc_fs.h>
  25 #include <linux/seq_file.h>
  26 #include <linux/netdevice.h>
  27
  28
  29 #include "ft1000_usb.h"
  30
  31 #define FT1000_PROC_DIR "ft1000"
  32
  33
  34 #define seq_putx(m, message, size, var) \
  35         seq_printf(m, message); \
  36         for(i = 0; i < (size - 1); i++) \
  37                 seq_printf(m, "%02x:", var[i]); \
  38         seq_printf(m, "%02x\n", var[i])
  39
  40 #define seq_putd(m, message, size, var) \
  41         seq_printf(m, message); \
  42         for(i = 0; i < (size - 1); i++) \
  43                 seq_printf(m, "%d.", var[i]); \
  44         seq_printf(m, "%d\n", var[i])
  45
  46
  47 #define FTNET_PROC init_net.proc_net
  48
  49
  50 int ft1000_read_dpram16 (struct ft1000_usb *ft1000dev, u16 indx,
  51                          u8 *buffer, u8 highlow);
  52
  53
  54 static int ft1000ReadProc(struct seq_file *m, void *v)
  55 {
  56         static const char *status[] = {
  57                 "Idle (Disconnect)",
  58                 "Searching",
  59                 "Active (Connected)",
  60                 "Waiting for L2",
  61                 "Sleep",
  62                 "No Coverage",
  63                 "",
  64                 "",
  65         };
  66         static const char *signal[] = { "", "*", "**", "***", "****" };
  67
  68         struct net_device *dev = m->private;
  69         struct ft1000_info *info = netdev_priv(dev);
  70         int i;
  71         unsigned short ledStat;
  72         unsigned short conStat;
  73         int strength;
  74         int quality;
  75         struct timeval tv;
  76         time_t delta;
  77
  78         if (info->ProgConStat != 0xFF) {
  79                 ft1000_read_dpram16(info->priv, FT1000_MAG_DSP_LED,
  80                            (u8 *)&ledStat, FT1000_MAG_DSP_LED_INDX);
  81                 info->LedStat = ntohs(ledStat);
  82
  83                 ft1000_read_dpram16(info->priv, FT1000_MAG_DSP_CON_STATE,
  84                         (u8 *)&conStat, FT1000_MAG_DSP_CON_STATE_INDX);
  85                 info->ConStat = ntohs(conStat);
  86                 do_gettimeofday(&tv);
  87                 delta = (tv.tv_sec - info->ConTm);
  88         } else {
  89                 info->ConStat = 0xf;
  90                 delta = 0;
  91         }
  92
  93         i = (info->LedStat) & 0xf;
  94         switch (i) {
  95         case 0x1:
  96                 strength = 1;
  97                 break;
  98         case 0x3:
  99                 strength = 2;
 100                 break;
 101         case 0x7:
 102                 strength = 3;
 103                 break;
 104         case 0xf:
 105                 strength = 4;
 106                 break;
 107         default:
 108                 strength = 0;
 109         }
 110
 111         i = (info->LedStat >> 8) & 0xf;
 112         switch (i) {
 113         case 0x1:
 114                 quality = 1;
 115                 break;
 116         case 0x3:
 117                 quality = 2;
 118                 break;
 119         case 0x7:
 120                 quality = 3;
 121                 break;
 122         case 0xf:
 123                 quality = 4;
 124                 break;
 125         default:
 126                 quality = 0;
 127         }
 128
 129         seq_printf(m, "Connection Time: %02ld:%02ld:%02ld\n",
 130                 ((delta / 3600) % 24), ((delta / 60) % 60), (delta % 60));
 131         seq_printf(m, "Connection Time[s]: %ld\n", delta);
 132         seq_printf(m, "Asic ID: %s\n",
 133         (info->AsicID) == ELECTRABUZZ_ID ? "ELECTRABUZZ ASIC" : "MAGNEMITE ASIC");
 134         seq_putx(m, "SKU: ", SKUSZ, info->Sku);
 135         seq_putx(m, "EUI64: ", EUISZ, info->eui64);
 136         seq_putd(m, "DSP version number: ", DSPVERSZ, info->DspVer);
 137         seq_putx(m, "Hardware Serial Number: ", HWSERNUMSZ, info->HwSerNum);
 138         seq_putx(m, "Caliberation Version: ", CALVERSZ, info->RfCalVer);
 139         seq_putd(m, "Caliberation Date: ", CALDATESZ, info->RfCalDate);
 140         seq_printf(m, "Media State: %s\n", (info->mediastate) ? "link" : "no link");
 141         seq_printf(m, "Connection Status: %s\n", status[info->ConStat & 0x7]);
 142         seq_printf(m, "RX packets: %ld\n", info->stats.rx_packets);
 143         seq_printf(m, "TX packets: %ld\n", info->stats.tx_packets);
 144         seq_printf(m, "RX bytes: %ld\n", info->stats.rx_bytes);
 145         seq_printf(m, "TX bytes: %ld\n", info->stats.tx_bytes);
 146         seq_printf(m, "Signal Strength: %s\n", signal[strength]);
 147         seq_printf(m, "Signal Quality: %s\n", signal[quality]);
 148         return 0;
 149 }
 150
 151 /*
 152  * seq_file wrappers for procfile show routines.
 153  */
 154 static int ft1000_proc_open(struct inode *inode, struct file *file)
 155 {
 156         return single_open(file, ft1000ReadProc, PDE_DATA(inode));
 157 }
 158
 159 static const struct file_operations ft1000_proc_fops = {
 160         .open           = ft1000_proc_open,
 161         .read           = seq_read,
 162         .llseek         = seq_lseek,
 163         .release        = single_release,
 164 };
 165
 166 static int
 167 ft1000NotifyProc(struct notifier_block *this, unsigned long event, void *ptr)
 168 {
 169         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 170         struct ft1000_info *info;
 171         struct proc_dir_entry *ft1000_proc_file;
 172
 173         info = netdev_priv(dev);
 174
 175         switch (event) {
 176         case NETDEV_CHANGENAME:
 177                 remove_proc_entry(info->netdevname, info->ft1000_proc_dir);
 178                 ft1000_proc_file =
 179                         proc_create_data(dev->name, 0644, info->ft1000_proc_dir,
 180                                          &ft1000_proc_fops, dev);
 181                 snprintf(info->netdevname, IFNAMSIZ, "%s", dev->name);
 182                 break;
 183         }
 184
 185         return NOTIFY_DONE;
 186 }
 187
 188 static struct notifier_block ft1000_netdev_notifier = {
 189         .notifier_call = ft1000NotifyProc,
 190 };
 191
 192
 193 int ft1000_init_proc(struct net_device *dev)
 194 {
 195         struct ft1000_info *info;
 196         struct proc_dir_entry *ft1000_proc_file;
 197         int ret = -EINVAL;
 198
 199         info = netdev_priv(dev);
 200
 201         info->ft1000_proc_dir = proc_mkdir(FT1000_PROC_DIR, FTNET_PROC);
 202         if (info->ft1000_proc_dir == NULL) {
 203                 printk(KERN_WARNING "Unable to create %s dir.\n",
 204                         FT1000_PROC_DIR);
 205                 goto fail;
 206         }
 207
 208         ft1000_proc_file =
 209                 proc_create_data(dev->name, 0644, info->ft1000_proc_dir,
 210                                  &ft1000_proc_fops, dev);
 211
 212         if (!ft1000_proc_file) {
 213                 printk(KERN_WARNING "Unable to create /proc entry.\n");
 214                 goto fail_entry;
 215         }
 216
 217         snprintf(info->netdevname, IFNAMSIZ, "%s", dev->name);
 218
 219         ret = register_netdevice_notifier(&ft1000_netdev_notifier);
 220         if (ret)
 221                 goto fail_notif;
 222
 223         return 0;
 224
 225 fail_notif:
 226         remove_proc_entry(info->netdevname, info->ft1000_proc_dir);
 227 fail_entry:
 228         remove_proc_entry(FT1000_PROC_DIR, FTNET_PROC);
 229 fail:
 230         return ret;
 231 }
 232
 233 void ft1000_cleanup_proc(struct ft1000_info *info)
 234 {
 235         remove_proc_entry(info->netdevname, info->ft1000_proc_dir);
 236         remove_proc_entry(FT1000_PROC_DIR, FTNET_PROC);
 237         unregister_netdevice_notifier(&ft1000_netdev_notifier);
 238 }