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 debugfs_remove_recursive(drvr->dbgfs_dir); 66 } 67 68 struct dentry *brcms_debugfs_get_devdir(struct brcms_pub *drvr) 69 { 70 return drvr->dbgfs_dir; 71 } 72 73 static 74 int brcms_debugfs_hardware_read(struct seq_file *s, void *data) 75 { 76 struct brcms_pub *drvr = s->private; 77 struct brcms_hardware *hw = drvr->wlc->hw; 78 struct bcma_device *core = hw->d11core; 79 struct bcma_bus *bus = core->bus; 80 char boardrev[BRCMU_BOARDREV_LEN]; 81 82 seq_printf(s, "chipnum 0x%x\n" 83 "chiprev 0x%x\n" 84 "chippackage 0x%x\n" 85 "corerev 0x%x\n" 86 "boardid 0x%x\n" 87 "boardvendor 0x%x\n" 88 "boardrev %s\n" 89 "boardflags 0x%x\n" 90 "boardflags2 0x%x\n" 91 "ucoderev 0x%x\n" 92 "radiorev 0x%x\n" 93 "phytype 0x%x\n" 94 "phyrev 0x%x\n" 95 "anarev 0x%x\n" 96 "nvramrev %d\n", 97 bus->chipinfo.id, bus->chipinfo.rev, bus->chipinfo.pkg, 98 core->id.rev, bus->boardinfo.type, bus->boardinfo.vendor, 99 brcmu_boardrev_str(hw->boardrev, boardrev), 100 drvr->wlc->hw->boardflags, drvr->wlc->hw->boardflags2, 101 drvr->wlc->ucode_rev, hw->band->radiorev, 102 hw->band->phytype, hw->band->phyrev, hw->band->pi->ana_rev, 103 hw->sromrev); 104 return 0; 105 } 106 107 static int brcms_debugfs_macstat_read(struct seq_file *s, void *data) 108 { 109 struct brcms_pub *drvr = s->private; 110 struct brcms_info *wl = drvr->ieee_hw->priv; 111 struct macstat stats; 112 int i; 113 114 spin_lock_bh(&wl->lock); 115 stats = *(drvr->wlc->core->macstat_snapshot); 116 spin_unlock_bh(&wl->lock); 117 118 seq_printf(s, "txallfrm: %d\n", stats.txallfrm); 119 seq_printf(s, "txrtsfrm: %d\n", stats.txrtsfrm); 120 seq_printf(s, "txctsfrm: %d\n", stats.txctsfrm); 121 seq_printf(s, "txackfrm: %d\n", stats.txackfrm); 122 seq_printf(s, "txdnlfrm: %d\n", stats.txdnlfrm); 123 seq_printf(s, "txbcnfrm: %d\n", stats.txbcnfrm); 124 seq_printf(s, "txfunfl[8]:"); 125 for (i = 0; i < ARRAY_SIZE(stats.txfunfl); i++) 126 seq_printf(s, " %d", stats.txfunfl[i]); 127 seq_printf(s, "\ntxtplunfl: %d\n", stats.txtplunfl); 128 seq_printf(s, "txphyerr: %d\n", stats.txphyerr); 129 seq_printf(s, "pktengrxducast: %d\n", stats.pktengrxducast); 130 seq_printf(s, "pktengrxdmcast: %d\n", stats.pktengrxdmcast); 131 seq_printf(s, "rxfrmtoolong: %d\n", stats.rxfrmtoolong); 132 seq_printf(s, "rxfrmtooshrt: %d\n", stats.rxfrmtooshrt); 133 seq_printf(s, "rxinvmachdr: %d\n", stats.rxinvmachdr); 134 seq_printf(s, "rxbadfcs: %d\n", stats.rxbadfcs); 135 seq_printf(s, "rxbadplcp: %d\n", stats.rxbadplcp); 136 seq_printf(s, "rxcrsglitch: %d\n", stats.rxcrsglitch); 137 seq_printf(s, "rxstrt: %d\n", stats.rxstrt); 138 seq_printf(s, "rxdfrmucastmbss: %d\n", stats.rxdfrmucastmbss); 139 seq_printf(s, "rxmfrmucastmbss: %d\n", stats.rxmfrmucastmbss); 140 seq_printf(s, "rxcfrmucast: %d\n", stats.rxcfrmucast); 141 seq_printf(s, "rxrtsucast: %d\n", stats.rxrtsucast); 142 seq_printf(s, "rxctsucast: %d\n", stats.rxctsucast); 143 seq_printf(s, "rxackucast: %d\n", stats.rxackucast); 144 seq_printf(s, "rxdfrmocast: %d\n", stats.rxdfrmocast); 145 seq_printf(s, "rxmfrmocast: %d\n", stats.rxmfrmocast); 146 seq_printf(s, "rxcfrmocast: %d\n", stats.rxcfrmocast); 147 seq_printf(s, "rxrtsocast: %d\n", stats.rxrtsocast); 148 seq_printf(s, "rxctsocast: %d\n", stats.rxctsocast); 149 seq_printf(s, "rxdfrmmcast: %d\n", stats.rxdfrmmcast); 150 seq_printf(s, "rxmfrmmcast: %d\n", stats.rxmfrmmcast); 151 seq_printf(s, "rxcfrmmcast: %d\n", stats.rxcfrmmcast); 152 seq_printf(s, "rxbeaconmbss: %d\n", stats.rxbeaconmbss); 153 seq_printf(s, "rxdfrmucastobss: %d\n", stats.rxdfrmucastobss); 154 seq_printf(s, "rxbeaconobss: %d\n", stats.rxbeaconobss); 155 seq_printf(s, "rxrsptmout: %d\n", stats.rxrsptmout); 156 seq_printf(s, "bcntxcancl: %d\n", stats.bcntxcancl); 157 seq_printf(s, "rxf0ovfl: %d\n", stats.rxf0ovfl); 158 seq_printf(s, "rxf1ovfl: %d\n", stats.rxf1ovfl); 159 seq_printf(s, "rxf2ovfl: %d\n", stats.rxf2ovfl); 160 seq_printf(s, "txsfovfl: %d\n", stats.txsfovfl); 161 seq_printf(s, "pmqovfl: %d\n", stats.pmqovfl); 162 seq_printf(s, "rxcgprqfrm: %d\n", stats.rxcgprqfrm); 163 seq_printf(s, "rxcgprsqovfl: %d\n", stats.rxcgprsqovfl); 164 seq_printf(s, "txcgprsfail: %d\n", stats.txcgprsfail); 165 seq_printf(s, "txcgprssuc: %d\n", stats.txcgprssuc); 166 seq_printf(s, "prs_timeout: %d\n", stats.prs_timeout); 167 seq_printf(s, "rxnack: %d\n", stats.rxnack); 168 seq_printf(s, "frmscons: %d\n", stats.frmscons); 169 seq_printf(s, "txnack: %d\n", stats.txnack); 170 seq_printf(s, "txglitch_nack: %d\n", stats.txglitch_nack); 171 seq_printf(s, "txburst: %d\n", stats.txburst); 172 seq_printf(s, "bphy_rxcrsglitch: %d\n", stats.bphy_rxcrsglitch); 173 seq_printf(s, "phywatchdog: %d\n", stats.phywatchdog); 174 seq_printf(s, "bphy_badplcp: %d\n", stats.bphy_badplcp); 175 return 0; 176 } 177 178 struct brcms_debugfs_entry { 179 int (*read)(struct seq_file *seq, void *data); 180 struct brcms_pub *drvr; 181 }; 182 183 static int brcms_debugfs_entry_open(struct inode *inode, struct file *f) 184 { 185 struct brcms_debugfs_entry *entry = inode->i_private; 186 187 return single_open(f, entry->read, entry->drvr); 188 } 189 190 static const struct file_operations brcms_debugfs_def_ops = { 191 .owner = THIS_MODULE, 192 .open = brcms_debugfs_entry_open, 193 .release = single_release, 194 .read = seq_read, 195 .llseek = seq_lseek 196 }; 197 198 static int 199 brcms_debugfs_add_entry(struct brcms_pub *drvr, const char *fn, 200 int (*read_fn)(struct seq_file *seq, void *data)) 201 { 202 struct device *dev = &drvr->wlc->hw->d11core->dev; 203 struct dentry *dentry = drvr->dbgfs_dir; 204 struct brcms_debugfs_entry *entry; 205 206 if (IS_ERR_OR_NULL(dentry)) 207 return -ENOENT; 208 209 entry = devm_kzalloc(dev, sizeof(*entry), GFP_KERNEL); 210 if (!entry) 211 return -ENOMEM; 212 213 entry->read = read_fn; 214 entry->drvr = drvr; 215 216 dentry = debugfs_create_file(fn, 0444, dentry, entry, 217 &brcms_debugfs_def_ops); 218 219 return PTR_ERR_OR_ZERO(dentry); 220 } 221 222 void brcms_debugfs_create_files(struct brcms_pub *drvr) 223 { 224 if (IS_ERR_OR_NULL(drvr->dbgfs_dir)) 225 return; 226 227 brcms_debugfs_add_entry(drvr, "hardware", brcms_debugfs_hardware_read); 228 brcms_debugfs_add_entry(drvr, "macstat", brcms_debugfs_macstat_read); 229 } 230 231 #define __brcms_fn(fn) \ 232 void __brcms_ ##fn(struct device *dev, const char *fmt, ...) \ 233 { \ 234 struct va_format vaf = { \ 235 .fmt = fmt, \ 236 }; \ 237 va_list args; \ 238 \ 239 va_start(args, fmt); \ 240 vaf.va = &args; \ 241 dev_ ##fn(dev, "%pV", &vaf); \ 242 trace_brcms_ ##fn(&vaf); \ 243 va_end(args); \ 244 } 245 246 __brcms_fn(info) 247 __brcms_fn(warn) 248 __brcms_fn(err) 249 __brcms_fn(crit) 250 251 #if defined(CONFIG_BRCMDBG) || defined(CONFIG_BRCM_TRACING) 252 void __brcms_dbg(struct device *dev, u32 level, const char *func, 253 const char *fmt, ...) 254 { 255 struct va_format vaf = { 256 .fmt = fmt, 257 }; 258 va_list args; 259 260 va_start(args, fmt); 261 vaf.va = &args; 262 #ifdef CONFIG_BRCMDBG 263 if ((brcm_msg_level & level) && net_ratelimit()) 264 dev_err(dev, "%s %pV", func, &vaf); 265 #endif 266 trace_brcms_dbg(level, func, &vaf); 267 va_end(args); 268 } 269 #endif 270