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 271