linux/drivers/net/wireless/broadcom/brcm80211/brcmsmac/debug.c
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   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}
  41
  42void brcms_debugfs_exit(void)
  43{
  44        debugfs_remove_recursive(root_folder);
  45        root_folder = NULL;
  46}
  47
  48void brcms_debugfs_attach(struct brcms_pub *drvr)
  49{
  50        drvr->dbgfs_dir = debugfs_create_dir(
  51                 dev_name(&drvr->wlc->hw->d11core->dev), root_folder);
  52}
  53
  54void brcms_debugfs_detach(struct brcms_pub *drvr)
  55{
  56        debugfs_remove_recursive(drvr->dbgfs_dir);
  57}
  58
  59struct dentry *brcms_debugfs_get_devdir(struct brcms_pub *drvr)
  60{
  61        return drvr->dbgfs_dir;
  62}
  63
  64static
  65int brcms_debugfs_hardware_read(struct seq_file *s, void *data)
  66{
  67        struct brcms_pub *drvr = s->private;
  68        struct brcms_hardware *hw = drvr->wlc->hw;
  69        struct bcma_device *core = hw->d11core;
  70        struct bcma_bus *bus = core->bus;
  71        char boardrev[BRCMU_BOARDREV_LEN];
  72
  73        seq_printf(s, "chipnum 0x%x\n"
  74                   "chiprev 0x%x\n"
  75                   "chippackage 0x%x\n"
  76                   "corerev 0x%x\n"
  77                   "boardid 0x%x\n"
  78                   "boardvendor 0x%x\n"
  79                   "boardrev %s\n"
  80                   "boardflags 0x%x\n"
  81                   "boardflags2 0x%x\n"
  82                   "ucoderev 0x%x\n"
  83                   "radiorev 0x%x\n"
  84                   "phytype 0x%x\n"
  85                   "phyrev 0x%x\n"
  86                   "anarev 0x%x\n"
  87                   "nvramrev %d\n",
  88                   bus->chipinfo.id, bus->chipinfo.rev, bus->chipinfo.pkg,
  89                   core->id.rev, bus->boardinfo.type, bus->boardinfo.vendor,
  90                   brcmu_boardrev_str(hw->boardrev, boardrev),
  91                   drvr->wlc->hw->boardflags, drvr->wlc->hw->boardflags2,
  92                   drvr->wlc->ucode_rev, hw->band->radiorev,
  93                   hw->band->phytype, hw->band->phyrev, hw->band->pi->ana_rev,
  94                   hw->sromrev);
  95        return 0;
  96}
  97
  98static int brcms_debugfs_macstat_read(struct seq_file *s, void *data)
  99{
 100        struct brcms_pub *drvr = s->private;
 101        struct brcms_info *wl = drvr->ieee_hw->priv;
 102        struct macstat stats;
 103        int i;
 104
 105        spin_lock_bh(&wl->lock);
 106        stats = *(drvr->wlc->core->macstat_snapshot);
 107        spin_unlock_bh(&wl->lock);
 108
 109        seq_printf(s, "txallfrm: %d\n", stats.txallfrm);
 110        seq_printf(s, "txrtsfrm: %d\n", stats.txrtsfrm);
 111        seq_printf(s, "txctsfrm: %d\n", stats.txctsfrm);
 112        seq_printf(s, "txackfrm: %d\n", stats.txackfrm);
 113        seq_printf(s, "txdnlfrm: %d\n", stats.txdnlfrm);
 114        seq_printf(s, "txbcnfrm: %d\n", stats.txbcnfrm);
 115        seq_printf(s, "txfunfl[8]:");
 116        for (i = 0; i < ARRAY_SIZE(stats.txfunfl); i++)
 117                seq_printf(s, " %d", stats.txfunfl[i]);
 118        seq_printf(s, "\ntxtplunfl: %d\n", stats.txtplunfl);
 119        seq_printf(s, "txphyerr: %d\n", stats.txphyerr);
 120        seq_printf(s, "pktengrxducast: %d\n", stats.pktengrxducast);
 121        seq_printf(s, "pktengrxdmcast: %d\n", stats.pktengrxdmcast);
 122        seq_printf(s, "rxfrmtoolong: %d\n", stats.rxfrmtoolong);
 123        seq_printf(s, "rxfrmtooshrt: %d\n", stats.rxfrmtooshrt);
 124        seq_printf(s, "rxinvmachdr: %d\n", stats.rxinvmachdr);
 125        seq_printf(s, "rxbadfcs: %d\n", stats.rxbadfcs);
 126        seq_printf(s, "rxbadplcp: %d\n", stats.rxbadplcp);
 127        seq_printf(s, "rxcrsglitch: %d\n", stats.rxcrsglitch);
 128        seq_printf(s, "rxstrt: %d\n", stats.rxstrt);
 129        seq_printf(s, "rxdfrmucastmbss: %d\n", stats.rxdfrmucastmbss);
 130        seq_printf(s, "rxmfrmucastmbss: %d\n", stats.rxmfrmucastmbss);
 131        seq_printf(s, "rxcfrmucast: %d\n", stats.rxcfrmucast);
 132        seq_printf(s, "rxrtsucast: %d\n", stats.rxrtsucast);
 133        seq_printf(s, "rxctsucast: %d\n", stats.rxctsucast);
 134        seq_printf(s, "rxackucast: %d\n", stats.rxackucast);
 135        seq_printf(s, "rxdfrmocast: %d\n", stats.rxdfrmocast);
 136        seq_printf(s, "rxmfrmocast: %d\n", stats.rxmfrmocast);
 137        seq_printf(s, "rxcfrmocast: %d\n", stats.rxcfrmocast);
 138        seq_printf(s, "rxrtsocast: %d\n", stats.rxrtsocast);
 139        seq_printf(s, "rxctsocast: %d\n", stats.rxctsocast);
 140        seq_printf(s, "rxdfrmmcast: %d\n", stats.rxdfrmmcast);
 141        seq_printf(s, "rxmfrmmcast: %d\n", stats.rxmfrmmcast);
 142        seq_printf(s, "rxcfrmmcast: %d\n", stats.rxcfrmmcast);
 143        seq_printf(s, "rxbeaconmbss: %d\n", stats.rxbeaconmbss);
 144        seq_printf(s, "rxdfrmucastobss: %d\n", stats.rxdfrmucastobss);
 145        seq_printf(s, "rxbeaconobss: %d\n", stats.rxbeaconobss);
 146        seq_printf(s, "rxrsptmout: %d\n", stats.rxrsptmout);
 147        seq_printf(s, "bcntxcancl: %d\n", stats.bcntxcancl);
 148        seq_printf(s, "rxf0ovfl: %d\n", stats.rxf0ovfl);
 149        seq_printf(s, "rxf1ovfl: %d\n", stats.rxf1ovfl);
 150        seq_printf(s, "rxf2ovfl: %d\n", stats.rxf2ovfl);
 151        seq_printf(s, "txsfovfl: %d\n", stats.txsfovfl);
 152        seq_printf(s, "pmqovfl: %d\n", stats.pmqovfl);
 153        seq_printf(s, "rxcgprqfrm: %d\n", stats.rxcgprqfrm);
 154        seq_printf(s, "rxcgprsqovfl: %d\n", stats.rxcgprsqovfl);
 155        seq_printf(s, "txcgprsfail: %d\n", stats.txcgprsfail);
 156        seq_printf(s, "txcgprssuc: %d\n", stats.txcgprssuc);
 157        seq_printf(s, "prs_timeout: %d\n", stats.prs_timeout);
 158        seq_printf(s, "rxnack: %d\n", stats.rxnack);
 159        seq_printf(s, "frmscons: %d\n", stats.frmscons);
 160        seq_printf(s, "txnack: %d\n", stats.txnack);
 161        seq_printf(s, "txglitch_nack: %d\n", stats.txglitch_nack);
 162        seq_printf(s, "txburst: %d\n", stats.txburst);
 163        seq_printf(s, "bphy_rxcrsglitch: %d\n", stats.bphy_rxcrsglitch);
 164        seq_printf(s, "phywatchdog: %d\n", stats.phywatchdog);
 165        seq_printf(s, "bphy_badplcp: %d\n", stats.bphy_badplcp);
 166        return 0;
 167}
 168
 169struct brcms_debugfs_entry {
 170        int (*read)(struct seq_file *seq, void *data);
 171        struct brcms_pub *drvr;
 172};
 173
 174static int brcms_debugfs_entry_open(struct inode *inode, struct file *f)
 175{
 176        struct brcms_debugfs_entry *entry = inode->i_private;
 177
 178        return single_open(f, entry->read, entry->drvr);
 179}
 180
 181static const struct file_operations brcms_debugfs_def_ops = {
 182        .owner = THIS_MODULE,
 183        .open = brcms_debugfs_entry_open,
 184        .release = single_release,
 185        .read = seq_read,
 186        .llseek = seq_lseek
 187};
 188
 189static void
 190brcms_debugfs_add_entry(struct brcms_pub *drvr, const char *fn,
 191                        int (*read_fn)(struct seq_file *seq, void *data))
 192{
 193        struct device *dev = &drvr->wlc->hw->d11core->dev;
 194        struct dentry *dentry =  drvr->dbgfs_dir;
 195        struct brcms_debugfs_entry *entry;
 196
 197        entry = devm_kzalloc(dev, sizeof(*entry), GFP_KERNEL);
 198        if (!entry)
 199                return;
 200
 201        entry->read = read_fn;
 202        entry->drvr = drvr;
 203
 204        debugfs_create_file(fn, 0444, dentry, entry, &brcms_debugfs_def_ops);
 205}
 206
 207void brcms_debugfs_create_files(struct brcms_pub *drvr)
 208{
 209        brcms_debugfs_add_entry(drvr, "hardware", brcms_debugfs_hardware_read);
 210        brcms_debugfs_add_entry(drvr, "macstat", brcms_debugfs_macstat_read);
 211}
 212
 213#define __brcms_fn(fn)                                          \
 214void __brcms_ ##fn(struct device *dev, const char *fmt, ...)    \
 215{                                                               \
 216        struct va_format vaf = {                                \
 217                .fmt = fmt,                                     \
 218        };                                                      \
 219        va_list args;                                           \
 220                                                                \
 221        va_start(args, fmt);                                    \
 222        vaf.va = &args;                                         \
 223        dev_ ##fn(dev, "%pV", &vaf);                            \
 224        trace_brcms_ ##fn(&vaf);                                \
 225        va_end(args);                                           \
 226}
 227
 228__brcms_fn(info)
 229__brcms_fn(warn)
 230__brcms_fn(err)
 231__brcms_fn(crit)
 232
 233#if defined(CONFIG_BRCMDBG) || defined(CONFIG_BRCM_TRACING)
 234void __brcms_dbg(struct device *dev, u32 level, const char *func,
 235                 const char *fmt, ...)
 236{
 237        struct va_format vaf = {
 238                .fmt = fmt,
 239        };
 240        va_list args;
 241
 242        va_start(args, fmt);
 243        vaf.va = &args;
 244#ifdef CONFIG_BRCMDBG
 245        if ((brcm_msg_level & level) && net_ratelimit())
 246                dev_err(dev, "%s %pV", func, &vaf);
 247#endif
 248        trace_brcms_dbg(level, func, &vaf);
 249        va_end(args);
 250}
 251#endif
 252