brcm80211/brcmsmac/debug.c

0001 /*
0002  * Copyright (c) 2012 Broadcom Corporation
0003  * Copyright (c) 2012 Canonical Ltd.
0004  *
0005  * Permission to use, copy, modify, and/or distribute this software for any
0006  * purpose with or without fee is hereby granted, provided that the above
0007  * copyright notice and this permission notice appear in all copies.
0008  *
0009  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
0010  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
0011  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
0012  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
0013  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
0014  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
0015  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
0016  */
0017 #include <linux/debugfs.h>
0018 #include <linux/if_ether.h>
0019 #include <linux/if.h>
0020 #include <linux/net.h>
0021 #include <linux/netdevice.h>
0022 #include <linux/ieee80211.h>
0023 #include <linux/module.h>
0024 #include <net/mac80211.h>
0025
0026 #include <defs.h>
0027 #include <brcmu_wifi.h>
0028 #include <brcmu_utils.h>
0029 #include "types.h"
0030 #include "main.h"
0031 #include "debug.h"
0032 #include "brcms_trace_events.h"
0033 #include "phy/phy_int.h"
0034
0035 static struct dentry *root_folder;
0036
0037 void brcms_debugfs_init(void)
0038 {
0039     root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
0040 }
0041
0042 void brcms_debugfs_exit(void)
0043 {
0044     debugfs_remove_recursive(root_folder);
0045     root_folder = NULL;
0046 }
0047
0048 void brcms_debugfs_attach(struct brcms_pub *drvr)
0049 {
0050     drvr->dbgfs_dir = debugfs_create_dir(
0051          dev_name(&drvr->wlc->hw->d11core->dev), root_folder);
0052 }
0053
0054 void brcms_debugfs_detach(struct brcms_pub *drvr)
0055 {
0056     debugfs_remove_recursive(drvr->dbgfs_dir);
0057 }
0058
0059 struct dentry *brcms_debugfs_get_devdir(struct brcms_pub *drvr)
0060 {
0061     return drvr->dbgfs_dir;
0062 }
0063
0064 static
0065 int brcms_debugfs_hardware_read(struct seq_file *s, void *data)
0066 {
0067     struct brcms_pub *drvr = s->private;
0068     struct brcms_hardware *hw = drvr->wlc->hw;
0069     struct bcma_device *core = hw->d11core;
0070     struct bcma_bus *bus = core->bus;
0071     char boardrev[BRCMU_BOARDREV_LEN];
0072
0073     seq_printf(s, "chipnum 0x%x\n"
0074            "chiprev 0x%x\n"
0075            "chippackage 0x%x\n"
0076            "corerev 0x%x\n"
0077            "boardid 0x%x\n"
0078            "boardvendor 0x%x\n"
0079            "boardrev %s\n"
0080            "boardflags 0x%x\n"
0081            "boardflags2 0x%x\n"
0082            "ucoderev 0x%x\n"
0083            "radiorev 0x%x\n"
0084            "phytype 0x%x\n"
0085            "phyrev 0x%x\n"
0086            "anarev 0x%x\n"
0087            "nvramrev %d\n",
0088            bus->chipinfo.id, bus->chipinfo.rev, bus->chipinfo.pkg,
0089            core->id.rev, bus->boardinfo.type, bus->boardinfo.vendor,
0090            brcmu_boardrev_str(hw->boardrev, boardrev),
0091            drvr->wlc->hw->boardflags, drvr->wlc->hw->boardflags2,
0092            drvr->wlc->ucode_rev, hw->band->radiorev,
0093            hw->band->phytype, hw->band->phyrev, hw->band->pi->ana_rev,
0094            hw->sromrev);
0095     return 0;
0096 }
0097
0098 static int brcms_debugfs_macstat_read(struct seq_file *s, void *data)
0099 {
0100     struct brcms_pub *drvr = s->private;
0101     struct brcms_info *wl = drvr->ieee_hw->priv;
0102     struct macstat stats;
0103     int i;
0104
0105     spin_lock_bh(&wl->lock);
0106     stats = *(drvr->wlc->core->macstat_snapshot);
0107     spin_unlock_bh(&wl->lock);
0108
0109     seq_printf(s, "txallfrm: %d\n", stats.txallfrm);
0110     seq_printf(s, "txrtsfrm: %d\n", stats.txrtsfrm);
0111     seq_printf(s, "txctsfrm: %d\n", stats.txctsfrm);
0112     seq_printf(s, "txackfrm: %d\n", stats.txackfrm);
0113     seq_printf(s, "txdnlfrm: %d\n", stats.txdnlfrm);
0114     seq_printf(s, "txbcnfrm: %d\n", stats.txbcnfrm);
0115     seq_printf(s, "txfunfl[8]:");
0116     for (i = 0; i < ARRAY_SIZE(stats.txfunfl); i++)
0117         seq_printf(s, " %d", stats.txfunfl[i]);
0118     seq_printf(s, "\ntxtplunfl: %d\n", stats.txtplunfl);
0119     seq_printf(s, "txphyerr: %d\n", stats.txphyerr);
0120     seq_printf(s, "pktengrxducast: %d\n", stats.pktengrxducast);
0121     seq_printf(s, "pktengrxdmcast: %d\n", stats.pktengrxdmcast);
0122     seq_printf(s, "rxfrmtoolong: %d\n", stats.rxfrmtoolong);
0123     seq_printf(s, "rxfrmtooshrt: %d\n", stats.rxfrmtooshrt);
0124     seq_printf(s, "rxinvmachdr: %d\n", stats.rxinvmachdr);
0125     seq_printf(s, "rxbadfcs: %d\n", stats.rxbadfcs);
0126     seq_printf(s, "rxbadplcp: %d\n", stats.rxbadplcp);
0127     seq_printf(s, "rxcrsglitch: %d\n", stats.rxcrsglitch);
0128     seq_printf(s, "rxstrt: %d\n", stats.rxstrt);
0129     seq_printf(s, "rxdfrmucastmbss: %d\n", stats.rxdfrmucastmbss);
0130     seq_printf(s, "rxmfrmucastmbss: %d\n", stats.rxmfrmucastmbss);
0131     seq_printf(s, "rxcfrmucast: %d\n", stats.rxcfrmucast);
0132     seq_printf(s, "rxrtsucast: %d\n", stats.rxrtsucast);
0133     seq_printf(s, "rxctsucast: %d\n", stats.rxctsucast);
0134     seq_printf(s, "rxackucast: %d\n", stats.rxackucast);
0135     seq_printf(s, "rxdfrmocast: %d\n", stats.rxdfrmocast);
0136     seq_printf(s, "rxmfrmocast: %d\n", stats.rxmfrmocast);
0137     seq_printf(s, "rxcfrmocast: %d\n", stats.rxcfrmocast);
0138     seq_printf(s, "rxrtsocast: %d\n", stats.rxrtsocast);
0139     seq_printf(s, "rxctsocast: %d\n", stats.rxctsocast);
0140     seq_printf(s, "rxdfrmmcast: %d\n", stats.rxdfrmmcast);
0141     seq_printf(s, "rxmfrmmcast: %d\n", stats.rxmfrmmcast);
0142     seq_printf(s, "rxcfrmmcast: %d\n", stats.rxcfrmmcast);
0143     seq_printf(s, "rxbeaconmbss: %d\n", stats.rxbeaconmbss);
0144     seq_printf(s, "rxdfrmucastobss: %d\n", stats.rxdfrmucastobss);
0145     seq_printf(s, "rxbeaconobss: %d\n", stats.rxbeaconobss);
0146     seq_printf(s, "rxrsptmout: %d\n", stats.rxrsptmout);
0147     seq_printf(s, "bcntxcancl: %d\n", stats.bcntxcancl);
0148     seq_printf(s, "rxf0ovfl: %d\n", stats.rxf0ovfl);
0149     seq_printf(s, "rxf1ovfl: %d\n", stats.rxf1ovfl);
0150     seq_printf(s, "rxf2ovfl: %d\n", stats.rxf2ovfl);
0151     seq_printf(s, "txsfovfl: %d\n", stats.txsfovfl);
0152     seq_printf(s, "pmqovfl: %d\n", stats.pmqovfl);
0153     seq_printf(s, "rxcgprqfrm: %d\n", stats.rxcgprqfrm);
0154     seq_printf(s, "rxcgprsqovfl: %d\n", stats.rxcgprsqovfl);
0155     seq_printf(s, "txcgprsfail: %d\n", stats.txcgprsfail);
0156     seq_printf(s, "txcgprssuc: %d\n", stats.txcgprssuc);
0157     seq_printf(s, "prs_timeout: %d\n", stats.prs_timeout);
0158     seq_printf(s, "rxnack: %d\n", stats.rxnack);
0159     seq_printf(s, "frmscons: %d\n", stats.frmscons);
0160     seq_printf(s, "txnack: %d\n", stats.txnack);
0161     seq_printf(s, "txglitch_nack: %d\n", stats.txglitch_nack);
0162     seq_printf(s, "txburst: %d\n", stats.txburst);
0163     seq_printf(s, "bphy_rxcrsglitch: %d\n", stats.bphy_rxcrsglitch);
0164     seq_printf(s, "phywatchdog: %d\n", stats.phywatchdog);
0165     seq_printf(s, "bphy_badplcp: %d\n", stats.bphy_badplcp);
0166     return 0;
0167 }
0168
0169 struct brcms_debugfs_entry {
0170     int (*read)(struct seq_file *seq, void *data);
0171     struct brcms_pub *drvr;
0172 };
0173
0174 static int brcms_debugfs_entry_open(struct inode *inode, struct file *f)
0175 {
0176     struct brcms_debugfs_entry *entry = inode->i_private;
0177
0178     return single_open(f, entry->read, entry->drvr);
0179 }
0180
0181 static const struct file_operations brcms_debugfs_def_ops = {
0182     .owner = THIS_MODULE,
0183     .open = brcms_debugfs_entry_open,
0184     .release = single_release,
0185     .read = seq_read,
0186     .llseek = seq_lseek
0187 };
0188
0189 static void
0190 brcms_debugfs_add_entry(struct brcms_pub *drvr, const char *fn,
0191             int (*read_fn)(struct seq_file *seq, void *data))
0192 {
0193     struct device *dev = &drvr->wlc->hw->d11core->dev;
0194     struct dentry *dentry =  drvr->dbgfs_dir;
0195     struct brcms_debugfs_entry *entry;
0196
0197     entry = devm_kzalloc(dev, sizeof(*entry), GFP_KERNEL);
0198     if (!entry)
0199         return;
0200
0201     entry->read = read_fn;
0202     entry->drvr = drvr;
0203
0204     debugfs_create_file(fn, 0444, dentry, entry, &brcms_debugfs_def_ops);
0205 }
0206
0207 void brcms_debugfs_create_files(struct brcms_pub *drvr)
0208 {
0209     brcms_debugfs_add_entry(drvr, "hardware", brcms_debugfs_hardware_read);
0210     brcms_debugfs_add_entry(drvr, "macstat", brcms_debugfs_macstat_read);
0211 }
0212
0213 #define __brcms_fn(fn)                      \
0214 void __brcms_ ##fn(struct device *dev, const char *fmt, ...)    \
0215 {                               \
0216     struct va_format vaf = {                \
0217         .fmt = fmt,                 \
0218     };                          \
0219     va_list args;                       \
0220                                 \
0221     va_start(args, fmt);                    \
0222     vaf.va = &args;                     \
0223     dev_ ##fn(dev, "%pV", &vaf);                \
0224     trace_brcms_ ##fn(&vaf);                \
0225     va_end(args);                       \
0226 }
0227
0228 __brcms_fn(info)
0229 __brcms_fn(warn)
0230 __brcms_fn(err)
0231 __brcms_fn(crit)
0232
0233 #if defined(CONFIG_BRCMDBG) || defined(CONFIG_BRCM_TRACING)
0234 void __brcms_dbg(struct device *dev, u32 level, const char *func,
0235          const char *fmt, ...)
0236 {
0237     struct va_format vaf = {
0238         .fmt = fmt,
0239     };
0240     va_list args;
0241
0242     va_start(args, fmt);
0243     vaf.va = &args;
0244 #ifdef CONFIG_BRCMDBG
0245     if ((brcm_msg_level & level) && net_ratelimit())
0246         dev_err(dev, "%s %pV", func, &vaf);
0247 #endif
0248     trace_brcms_dbg(level, func, &vaf);
0249     va_end(args);
0250 }
0251 #endif