linux/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c
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   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/netdevice.h>
  26
  27
  28#include "ft1000_usb.h"
  29
  30#define FT1000_PROC_DIR "ft1000"
  31
  32
  33#define PUTM_TO_PAGE(len,page,args...) \
  34        len += snprintf(page+len, PAGE_SIZE - len, args)
  35
  36#define PUTX_TO_PAGE(len,page,message,size,var) \
  37        len += snprintf(page+len, PAGE_SIZE - len, message); \
  38        for (i = 0; i < (size - 1); i++) {\
  39                len += snprintf(page+len, PAGE_SIZE - len, "%02x:", var[i]); \
  40        } \
  41        len += snprintf(page+len, PAGE_SIZE - len, "%02x\n", var[i])
  42
  43#define PUTD_TO_PAGE(len,page,message,size,var) \
  44        len += snprintf(page+len, PAGE_SIZE - len, message); \
  45        for (i = 0; i < (size - 1); i++) {\
  46                len += snprintf(page+len, PAGE_SIZE - len, "%d.", var[i]); \
  47        } \
  48        len += snprintf(page+len, PAGE_SIZE - len, "%d\n", var[i])
  49
  50
  51#define FTNET_PROC init_net.proc_net
  52
  53
  54u16 ft1000_read_dpram16 (struct ft1000_device *ft1000dev, u16 indx,
  55                         u8 *buffer, u8 highlow);
  56
  57
  58static int
  59ft1000ReadProc(char *page, char **start, off_t off, int count, int *eof,
  60                void *data)
  61{
  62        struct net_device *dev;
  63        int len;
  64        int i;
  65        unsigned short ledStat;
  66        unsigned short conStat;
  67
  68        struct ft1000_info *info;
  69
  70        char *status[] = { 
  71                "Idle (Disconnect)", 
  72                "Searching",
  73                "Active (Connected)",
  74                "Waiting for L2",
  75                "Sleep",
  76                "No Coverage",
  77                "",
  78                "",
  79        };
  80
  81        char *signal[] = { "", "*", "**", "***", "****" };
  82        int strength;
  83        int quality;
  84        struct timeval tv;
  85        time_t delta;
  86
  87        dev = (struct net_device *) data;
  88        info = netdev_priv(dev);
  89
  90        if (off > 0) {
  91                *eof = 1;
  92                return 0;
  93        }
  94
  95
  96        if (info->ProgConStat != 0xFF) {
  97                ft1000_read_dpram16(info->pFt1000Dev, FT1000_MAG_DSP_LED,
  98                           (u8 *)&ledStat, FT1000_MAG_DSP_LED_INDX);
  99                info->LedStat = ntohs(ledStat);
 100
 101                ft1000_read_dpram16(info->pFt1000Dev, FT1000_MAG_DSP_CON_STATE,
 102                        (u8 *)&conStat, FT1000_MAG_DSP_CON_STATE_INDX);
 103                info->ConStat = ntohs(conStat);
 104                do_gettimeofday(&tv);
 105                delta = (tv.tv_sec - info->ConTm);
 106        } else {
 107                info->ConStat = 0xf;
 108                delta = 0;
 109        }
 110
 111        i = (info->LedStat) & 0xf;
 112        switch (i) {
 113        case 0x1:
 114                strength = 1;
 115                break;
 116        case 0x3:
 117                strength = 2;
 118                break;
 119        case 0x7:
 120                strength = 3;
 121                break;
 122        case 0xf:
 123                strength = 4;
 124                break;
 125        default:
 126                strength = 0;
 127        }
 128
 129        i = (info->LedStat >> 8) & 0xf;
 130        switch (i) {
 131        case 0x1:
 132                quality = 1;
 133                break;
 134        case 0x3:
 135                quality = 2;
 136                break;
 137        case 0x7:
 138                quality = 3;
 139                break;
 140        case 0xf:
 141                quality = 4;
 142                break;
 143        default:
 144                quality = 0;
 145        }
 146
 147        len = 0;
 148        PUTM_TO_PAGE(len, page, "Connection Time: %02ld:%02ld:%02ld\n",
 149                ((delta / 3600) % 24), ((delta / 60) % 60), (delta % 60));
 150        PUTM_TO_PAGE(len, page, "Connection Time[s]: %ld\n", delta);
 151        PUTM_TO_PAGE(len, page, "Asic ID: %s\n",
 152        (info->AsicID) ==
 153        ELECTRABUZZ_ID ? "ELECTRABUZZ ASIC" : "MAGNEMITE ASIC");
 154        PUTX_TO_PAGE(len, page, "SKU: ", SKUSZ, info->Sku);
 155        PUTX_TO_PAGE(len, page, "EUI64: ", EUISZ, info->eui64);
 156        PUTD_TO_PAGE(len, page, "DSP version number: ", DSPVERSZ, info->DspVer);
 157        PUTX_TO_PAGE(len, page, "Hardware Serial Number: ", HWSERNUMSZ,
 158                info->HwSerNum);
 159        PUTX_TO_PAGE(len, page, "Caliberation Version: ", CALVERSZ,
 160                info->RfCalVer);
 161        PUTD_TO_PAGE(len, page, "Caliberation Date: ", CALDATESZ,
 162                info->RfCalDate);
 163        PUTM_TO_PAGE(len, page, "Media State: %s\n",
 164                (info->mediastate) ? "link" : "no link");
 165        PUTM_TO_PAGE(len, page, "Connection Status: %s\n",
 166                status[((info->ConStat) & 0x7)]);
 167        PUTM_TO_PAGE(len, page, "RX packets: %ld\n", info->stats.rx_packets);
 168        PUTM_TO_PAGE(len, page, "TX packets: %ld\n", info->stats.tx_packets);
 169        PUTM_TO_PAGE(len, page, "RX bytes: %ld\n", info->stats.rx_bytes);
 170        PUTM_TO_PAGE(len, page, "TX bytes: %ld\n", info->stats.tx_bytes);
 171        PUTM_TO_PAGE(len, page, "Signal Strength: %s\n", signal[strength]);
 172        PUTM_TO_PAGE(len, page, "Signal Quality: %s\n", signal[quality]);
 173
 174        return len;
 175}
 176
 177static int
 178ft1000NotifyProc(struct notifier_block *this, unsigned long event, void *ptr)
 179{
 180        struct net_device *dev = ptr;
 181        struct ft1000_info *info;
 182        struct proc_dir_entry *ft1000_proc_file;
 183
 184        info = netdev_priv(dev);
 185
 186        switch (event) {
 187        case NETDEV_CHANGENAME:
 188                remove_proc_entry(info->netdevname, info->ft1000_proc_dir);
 189                ft1000_proc_file = create_proc_read_entry(dev->name, 0644,
 190                                        info->ft1000_proc_dir,
 191                                        ft1000ReadProc, dev);
 192                snprintf(info->netdevname, IFNAMSIZ, "%s", dev->name);
 193                break;
 194        }
 195
 196        return NOTIFY_DONE;
 197}
 198
 199static struct notifier_block ft1000_netdev_notifier = {
 200        .notifier_call = ft1000NotifyProc,
 201};
 202
 203
 204int ft1000_init_proc(struct net_device *dev)
 205{
 206        struct ft1000_info *info;
 207        struct proc_dir_entry *ft1000_proc_file;
 208        int ret = 0;
 209
 210        info = netdev_priv(dev);
 211
 212        info->ft1000_proc_dir = proc_mkdir(FT1000_PROC_DIR, FTNET_PROC);
 213        if (info->ft1000_proc_dir == NULL) {
 214                printk(KERN_WARNING "Unable to create %s dir.\n",
 215                        FT1000_PROC_DIR);
 216                ret = -EINVAL;
 217                goto fail;
 218        }
 219
 220        ft1000_proc_file =
 221                create_proc_read_entry(dev->name, 0644,
 222                        info->ft1000_proc_dir, ft1000ReadProc, dev);
 223
 224        if (ft1000_proc_file == NULL) {
 225                printk(KERN_WARNING "Unable to create /proc entry.\n");
 226                ret = -EINVAL;
 227                goto fail_entry;
 228        }
 229
 230        snprintf(info->netdevname, IFNAMSIZ, "%s", dev->name);
 231
 232        ret = register_netdevice_notifier(&ft1000_netdev_notifier);
 233        if (ret)
 234                goto fail_notif;
 235
 236        return 0;
 237
 238fail_notif:
 239        remove_proc_entry(info->netdevname, info->ft1000_proc_dir);
 240fail_entry:
 241        remove_proc_entry(FT1000_PROC_DIR, FTNET_PROC);
 242fail:
 243        return ret;
 244}
 245
 246void ft1000_cleanup_proc(struct ft1000_info *info)
 247{
 248        remove_proc_entry(info->netdevname, info->ft1000_proc_dir);
 249        remove_proc_entry(FT1000_PROC_DIR, FTNET_PROC);
 250        unregister_netdevice_notifier(&ft1000_netdev_notifier);
 251}
 252