LXR linux/drivers/net/wireless/brcm80211/brcmsmac/debug.c

   1/*
   2 * Copyright (c) 2012 Broadcom Corporation
   3 * Copyright (c) 2012 Canonical Ltd.
   4 *
   5 * Permission to use, copy, modify, and/or distribute this software for any
   6 * purpose with or without fee is hereby granted, provided that the above
   7 * copyright notice and this permission notice appear in all copies.
   8 *
   9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  12 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  14 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  15 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16 */
  17#include <linux/debugfs.h>
  18#include <linux/if_ether.h>
  19#include <linux/if.h>
  20#include <linux/net.h>
  21#include <linux/netdevice.h>
  22#include <linux/ieee80211.h>
  23#include <linux/module.h>
  24#include <net/mac80211.h>
  25
  26#include <defs.h>
  27#include <brcmu_wifi.h>
  28#include <brcmu_utils.h>
  29#include "types.h"
  30#include "main.h"
  31#include "debug.h"
  32#include "brcms_trace_events.h"
  33#include "phy/phy_int.h"
  34
  35static struct dentry *root_folder;
  36
  37void brcms_debugfs_init(void)
  38{
  39        root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
  40        if (IS_ERR(root_folder))
  41                root_folder = NULL;
  42}
  43
  44void brcms_debugfs_exit(void)
  45{
  46        if (!root_folder)
  47                return;
  48
  49        debugfs_remove_recursive(root_folder);
  50        root_folder = NULL;
  51}
  52
  53int brcms_debugfs_attach(struct brcms_pub *drvr)
  54{
  55        if (!root_folder)
  56                return -ENODEV;
  57
  58        drvr->dbgfs_dir = debugfs_create_dir(
  59                 dev_name(&drvr->wlc->hw->d11core->dev), root_folder);
  60        return PTR_ERR_OR_ZERO(drvr->dbgfs_dir);
  61}
  62
  63void brcms_debugfs_detach(struct brcms_pub *drvr)
  64{
  65        if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
  66                debugfs_remove_recursive(drvr->dbgfs_dir);
  67}
  68
  69struct dentry *brcms_debugfs_get_devdir(struct brcms_pub *drvr)
  70{
  71        return drvr->dbgfs_dir;
  72}
  73
  74static
  75int brcms_debugfs_hardware_read(struct seq_file *s, void *data)
  76{
  77        struct brcms_pub *drvr = s->private;
  78        struct brcms_hardware *hw = drvr->wlc->hw;
  79        struct bcma_device *core = hw->d11core;
  80        struct bcma_bus *bus = core->bus;
  81        char boardrev[BRCMU_BOARDREV_LEN];
  82
  83        seq_printf(s, "chipnum 0x%x\n"
  84                   "chiprev 0x%x\n"
  85                   "chippackage 0x%x\n"
  86                   "corerev 0x%x\n"
  87                   "boardid 0x%x\n"
  88                   "boardvendor 0x%x\n"
  89                   "boardrev %s\n"
  90                   "boardflags 0x%x\n"
  91                   "boardflags2 0x%x\n"
  92                   "ucoderev 0x%x\n"
  93                   "radiorev 0x%x\n"
  94                   "phytype 0x%x\n"
  95                   "phyrev 0x%x\n"
  96                   "anarev 0x%x\n"
  97                   "nvramrev %d\n",
  98                   bus->chipinfo.id, bus->chipinfo.rev, bus->chipinfo.pkg,
  99                   core->id.rev, bus->boardinfo.type, bus->boardinfo.vendor,
 100                   brcmu_boardrev_str(hw->boardrev, boardrev),
 101                   drvr->wlc->hw->boardflags, drvr->wlc->hw->boardflags2,
 102                   drvr->wlc->ucode_rev, hw->band->radiorev,
 103                   hw->band->phytype, hw->band->phyrev, hw->band->pi->ana_rev,
 104                   hw->sromrev);
 105        return 0;
 106}
 107
 108static int brcms_debugfs_macstat_read(struct seq_file *s, void *data)
 109{
 110        struct brcms_pub *drvr = s->private;
 111        struct brcms_info *wl = drvr->ieee_hw->priv;
 112        struct macstat stats;
 113        int i;
 114
 115        spin_lock_bh(&wl->lock);
 116        stats = *(drvr->wlc->core->macstat_snapshot);
 117        spin_unlock_bh(&wl->lock);
 118
 119        seq_printf(s, "txallfrm: %d\n", stats.txallfrm);
 120        seq_printf(s, "txrtsfrm: %d\n", stats.txrtsfrm);
 121        seq_printf(s, "txctsfrm: %d\n", stats.txctsfrm);
 122        seq_printf(s, "txackfrm: %d\n", stats.txackfrm);
 123        seq_printf(s, "txdnlfrm: %d\n", stats.txdnlfrm);
 124        seq_printf(s, "txbcnfrm: %d\n", stats.txbcnfrm);
 125        seq_printf(s, "txfunfl[8]:");
 126        for (i = 0; i < ARRAY_SIZE(stats.txfunfl); i++)
 127                seq_printf(s, " %d", stats.txfunfl[i]);
 128        seq_printf(s, "\ntxtplunfl: %d\n", stats.txtplunfl);
 129        seq_printf(s, "txphyerr: %d\n", stats.txphyerr);
 130        seq_printf(s, "pktengrxducast: %d\n", stats.pktengrxducast);
 131        seq_printf(s, "pktengrxdmcast: %d\n", stats.pktengrxdmcast);
 132        seq_printf(s, "rxfrmtoolong: %d\n", stats.rxfrmtoolong);
 133        seq_printf(s, "rxfrmtooshrt: %d\n", stats.rxfrmtooshrt);
 134        seq_printf(s, "rxinvmachdr: %d\n", stats.rxinvmachdr);
 135        seq_printf(s, "rxbadfcs: %d\n", stats.rxbadfcs);
 136        seq_printf(s, "rxbadplcp: %d\n", stats.rxbadplcp);
 137        seq_printf(s, "rxcrsglitch: %d\n", stats.rxcrsglitch);
 138        seq_printf(s, "rxstrt: %d\n", stats.rxstrt);
 139        seq_printf(s, "rxdfrmucastmbss: %d\n", stats.rxdfrmucastmbss);
 140        seq_printf(s, "rxmfrmucastmbss: %d\n", stats.rxmfrmucastmbss);
 141        seq_printf(s, "rxcfrmucast: %d\n", stats.rxcfrmucast);
 142        seq_printf(s, "rxrtsucast: %d\n", stats.rxrtsucast);
 143        seq_printf(s, "rxctsucast: %d\n", stats.rxctsucast);
 144        seq_printf(s, "rxackucast: %d\n", stats.rxackucast);
 145        seq_printf(s, "rxdfrmocast: %d\n", stats.rxdfrmocast);
 146        seq_printf(s, "rxmfrmocast: %d\n", stats.rxmfrmocast);
 147        seq_printf(s, "rxcfrmocast: %d\n", stats.rxcfrmocast);
 148        seq_printf(s, "rxrtsocast: %d\n", stats.rxrtsocast);
 149        seq_printf(s, "rxctsocast: %d\n", stats.rxctsocast);
 150        seq_printf(s, "rxdfrmmcast: %d\n", stats.rxdfrmmcast);
 151        seq_printf(s, "rxmfrmmcast: %d\n", stats.rxmfrmmcast);
 152        seq_printf(s, "rxcfrmmcast: %d\n", stats.rxcfrmmcast);
 153        seq_printf(s, "rxbeaconmbss: %d\n", stats.rxbeaconmbss);
 154        seq_printf(s, "rxdfrmucastobss: %d\n", stats.rxdfrmucastobss);
 155        seq_printf(s, "rxbeaconobss: %d\n", stats.rxbeaconobss);
 156        seq_printf(s, "rxrsptmout: %d\n", stats.rxrsptmout);
 157        seq_printf(s, "bcntxcancl: %d\n", stats.bcntxcancl);
 158        seq_printf(s, "rxf0ovfl: %d\n", stats.rxf0ovfl);
 159        seq_printf(s, "rxf1ovfl: %d\n", stats.rxf1ovfl);
 160        seq_printf(s, "rxf2ovfl: %d\n", stats.rxf2ovfl);
 161        seq_printf(s, "txsfovfl: %d\n", stats.txsfovfl);
 162        seq_printf(s, "pmqovfl: %d\n", stats.pmqovfl);
 163        seq_printf(s, "rxcgprqfrm: %d\n", stats.rxcgprqfrm);
 164        seq_printf(s, "rxcgprsqovfl: %d\n", stats.rxcgprsqovfl);
 165        seq_printf(s, "txcgprsfail: %d\n", stats.txcgprsfail);
 166        seq_printf(s, "txcgprssuc: %d\n", stats.txcgprssuc);
 167        seq_printf(s, "prs_timeout: %d\n", stats.prs_timeout);
 168        seq_printf(s, "rxnack: %d\n", stats.rxnack);
 169        seq_printf(s, "frmscons: %d\n", stats.frmscons);
 170        seq_printf(s, "txnack: %d\n", stats.txnack);
 171        seq_printf(s, "txglitch_nack: %d\n", stats.txglitch_nack);
 172        seq_printf(s, "txburst: %d\n", stats.txburst);
 173        seq_printf(s, "bphy_rxcrsglitch: %d\n", stats.bphy_rxcrsglitch);
 174        seq_printf(s, "phywatchdog: %d\n", stats.phywatchdog);
 175        seq_printf(s, "bphy_badplcp: %d\n", stats.bphy_badplcp);
 176        return 0;
 177}
 178
 179struct brcms_debugfs_entry {
 180        int (*read)(struct seq_file *seq, void *data);
 181        struct brcms_pub *drvr;
 182};
 183
 184static int brcms_debugfs_entry_open(struct inode *inode, struct file *f)
 185{
 186        struct brcms_debugfs_entry *entry = inode->i_private;
 187
 188        return single_open(f, entry->read, entry->drvr);
 189}
 190
 191static const struct file_operations brcms_debugfs_def_ops = {
 192        .owner = THIS_MODULE,
 193        .open = brcms_debugfs_entry_open,
 194        .release = single_release,
 195        .read = seq_read,
 196        .llseek = seq_lseek
 197};
 198
 199static int
 200brcms_debugfs_add_entry(struct brcms_pub *drvr, const char *fn,
 201                        int (*read_fn)(struct seq_file *seq, void *data))
 202{
 203        struct device *dev = &drvr->wlc->hw->d11core->dev;
 204        struct dentry *dentry =  drvr->dbgfs_dir;
 205        struct brcms_debugfs_entry *entry;
 206
 207        if (IS_ERR_OR_NULL(dentry))
 208                return -ENOENT;
 209
 210        entry = devm_kzalloc(dev, sizeof(*entry), GFP_KERNEL);
 211        if (!entry)
 212                return -ENOMEM;
 213
 214        entry->read = read_fn;
 215        entry->drvr = drvr;
 216
 217        dentry = debugfs_create_file(fn, S_IRUGO, dentry, entry,
 218                                     &brcms_debugfs_def_ops);
 219
 220        return PTR_ERR_OR_ZERO(dentry);
 221}
 222
 223void brcms_debugfs_create_files(struct brcms_pub *drvr)
 224{
 225        if (IS_ERR_OR_NULL(drvr->dbgfs_dir))
 226                return;
 227
 228        brcms_debugfs_add_entry(drvr, "hardware", brcms_debugfs_hardware_read);
 229        brcms_debugfs_add_entry(drvr, "macstat", brcms_debugfs_macstat_read);
 230}
 231
 232#define __brcms_fn(fn)                                          \
 233void __brcms_ ##fn(struct device *dev, const char *fmt, ...)    \
 234{                                                               \
 235        struct va_format vaf = {                                \
 236                .fmt = fmt,                                     \
 237        };                                                      \
 238        va_list args;                                           \
 239                                                                \
 240        va_start(args, fmt);                                    \
 241        vaf.va = &args;                                         \
 242        dev_ ##fn(dev, "%pV", &vaf);                            \
 243        trace_brcms_ ##fn(&vaf);                                \
 244        va_end(args);                                           \
 245}
 246
 247__brcms_fn(info)
 248__brcms_fn(warn)
 249__brcms_fn(err)
 250__brcms_fn(crit)
 251
 252#if defined(CONFIG_BRCMDBG) || defined(CONFIG_BRCM_TRACING)
 253void __brcms_dbg(struct device *dev, u32 level, const char *func,
 254                 const char *fmt, ...)
 255{
 256        struct va_format vaf = {
 257                .fmt = fmt,
 258        };
 259        va_list args;
 260
 261        va_start(args, fmt);
 262        vaf.va = &args;
 263#ifdef CONFIG_BRCMDBG
 264        if ((brcm_msg_level & level) && net_ratelimit())
 265                dev_err(dev, "%s %pV", func, &vaf);
 266#endif
 267        trace_brcms_dbg(level, func, &vaf);
 268        va_end(args);
 269}
 270#endif
 271