drivers/net/wireless/broadcom/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
  35 static struct dentry *root_folder;
  36
  37 void brcms_debugfs_init(void)
  38 {
  39         root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
  40 }
  41
  42 void brcms_debugfs_exit(void)
  43 {
  44         debugfs_remove_recursive(root_folder);
  45         root_folder = NULL;
  46 }
  47
  48 void 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
  54 void brcms_debugfs_detach(struct brcms_pub *drvr)
  55 {
  56         debugfs_remove_recursive(drvr->dbgfs_dir);
  57 }
  58
  59 struct dentry *brcms_debugfs_get_devdir(struct brcms_pub *drvr)
  60 {
  61         return drvr->dbgfs_dir;
  62 }
  63
  64 static
  65 int 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
  98 static 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
 169 struct brcms_debugfs_entry {
 170         int (*read)(struct seq_file *seq, void *data);
 171         struct brcms_pub *drvr;
 172 };
 173
 174 static 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
 181 static 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
 189 static void
 190 brcms_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
 207 void 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)                                          \
 214 void __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)
 234 void __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