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