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         if (IS_ERR(root_folder))
  41                 root_folder = NULL;
  42 }
  43
  44 void brcms_debugfs_exit(void)
  45 {
  46         if (!root_folder)
  47                 return;
  48
  49         debugfs_remove_recursive(root_folder);
  50         root_folder = NULL;
  51 }
  52
  53 int 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
  63 void 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
  69 struct dentry *brcms_debugfs_get_devdir(struct brcms_pub *drvr)
  70 {
  71         return drvr->dbgfs_dir;
  72 }
  73
  74 static
  75 int 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
 108 static 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
 179 struct brcms_debugfs_entry {
 180         int (*read)(struct seq_file *seq, void *data);
 181         struct brcms_pub *drvr;
 182 };
 183
 184 static 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
 191 static 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
 199 static int
 200 brcms_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, 0444, dentry, entry,
 218                                      &brcms_debugfs_def_ops);
 219
 220         return PTR_ERR_OR_ZERO(dentry);
 221 }
 222
 223 void 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)                                          \
 233 void __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)
 253 void __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