drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c

   1 /*
   2  * Copyright (c) 2012 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16 #include <linux/debugfs.h>
  17 #include <linux/netdevice.h>
  18 #include <linux/module.h>
  19
  20 #include <brcmu_wifi.h>
  21 #include <brcmu_utils.h>
  22 #include "dhd.h"
  23 #include "dhd_bus.h"
  24 #include "dhd_dbg.h"
  25
  26 static struct dentry *root_folder;
  27
  28 void brcmf_debugfs_init(void)
  29 {
  30         root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
  31         if (IS_ERR(root_folder))
  32                 root_folder = NULL;
  33 }
  34
  35 void brcmf_debugfs_exit(void)
  36 {
  37         if (!root_folder)
  38                 return;
  39
  40         debugfs_remove_recursive(root_folder);
  41         root_folder = NULL;
  42 }
  43
  44 static
  45 ssize_t brcmf_debugfs_chipinfo_read(struct file *f, char __user *data,
  46                                    size_t count, loff_t *ppos)
  47 {
  48         struct brcmf_pub *drvr = f->private_data;
  49         struct brcmf_bus *bus = drvr->bus_if;
  50         char buf[40];
  51         int res;
  52
  53         /* only allow read from start */
  54         if (*ppos > 0)
  55                 return 0;
  56
  57         res = scnprintf(buf, sizeof(buf), "chip: %x(%u) rev %u\n",
  58                         bus->chip, bus->chip, bus->chiprev);
  59         return simple_read_from_buffer(data, count, ppos, buf, res);
  60 }
  61
  62 static const struct file_operations brcmf_debugfs_chipinfo_ops = {
  63         .owner = THIS_MODULE,
  64         .open = simple_open,
  65         .read = brcmf_debugfs_chipinfo_read
  66 };
  67
  68 static int brcmf_debugfs_create_chipinfo(struct brcmf_pub *drvr)
  69 {
  70         struct dentry *dentry =  drvr->dbgfs_dir;
  71
  72         if (!IS_ERR_OR_NULL(dentry))
  73                 debugfs_create_file("chipinfo", S_IRUGO, dentry, drvr,
  74                                     &brcmf_debugfs_chipinfo_ops);
  75         return 0;
  76 }
  77
  78 int brcmf_debugfs_attach(struct brcmf_pub *drvr)
  79 {
  80         struct device *dev = drvr->bus_if->dev;
  81
  82         if (!root_folder)
  83                 return -ENODEV;
  84
  85         drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
  86         brcmf_debugfs_create_chipinfo(drvr);
  87         return PTR_ERR_OR_ZERO(drvr->dbgfs_dir);
  88 }
  89
  90 void brcmf_debugfs_detach(struct brcmf_pub *drvr)
  91 {
  92         if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
  93                 debugfs_remove_recursive(drvr->dbgfs_dir);
  94 }
  95
  96 struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
  97 {
  98         return drvr->dbgfs_dir;
  99 }
 100
 101 static
 102 ssize_t brcmf_debugfs_sdio_counter_read(struct file *f, char __user *data,
 103                                         size_t count, loff_t *ppos)
 104 {
 105         struct brcmf_sdio_count *sdcnt = f->private_data;
 106         char buf[750];
 107         int res;
 108
 109         /* only allow read from start */
 110         if (*ppos > 0)
 111                 return 0;
 112
 113         res = scnprintf(buf, sizeof(buf),
 114                         "intrcount:    %u\nlastintrs:    %u\n"
 115                         "pollcnt:      %u\nregfails:     %u\n"
 116                         "tx_sderrs:    %u\nfcqueued:     %u\n"
 117                         "rxrtx:        %u\nrx_toolong:   %u\n"
 118                         "rxc_errors:   %u\nrx_hdrfail:   %u\n"
 119                         "rx_badhdr:    %u\nrx_badseq:    %u\n"
 120                         "fc_rcvd:      %u\nfc_xoff:      %u\n"
 121                         "fc_xon:       %u\nrxglomfail:   %u\n"
 122                         "rxglomframes: %u\nrxglompkts:   %u\n"
 123                         "f2rxhdrs:     %u\nf2rxdata:     %u\n"
 124                         "f2txdata:     %u\nf1regdata:    %u\n"
 125                         "tickcnt:      %u\ntx_ctlerrs:   %lu\n"
 126                         "tx_ctlpkts:   %lu\nrx_ctlerrs:   %lu\n"
 127                         "rx_ctlpkts:   %lu\nrx_readahead: %lu\n",
 128                         sdcnt->intrcount, sdcnt->lastintrs,
 129                         sdcnt->pollcnt, sdcnt->regfails,
 130                         sdcnt->tx_sderrs, sdcnt->fcqueued,
 131                         sdcnt->rxrtx, sdcnt->rx_toolong,
 132                         sdcnt->rxc_errors, sdcnt->rx_hdrfail,
 133                         sdcnt->rx_badhdr, sdcnt->rx_badseq,
 134                         sdcnt->fc_rcvd, sdcnt->fc_xoff,
 135                         sdcnt->fc_xon, sdcnt->rxglomfail,
 136                         sdcnt->rxglomframes, sdcnt->rxglompkts,
 137                         sdcnt->f2rxhdrs, sdcnt->f2rxdata,
 138                         sdcnt->f2txdata, sdcnt->f1regdata,
 139                         sdcnt->tickcnt, sdcnt->tx_ctlerrs,
 140                         sdcnt->tx_ctlpkts, sdcnt->rx_ctlerrs,
 141                         sdcnt->rx_ctlpkts, sdcnt->rx_readahead_cnt);
 142
 143         return simple_read_from_buffer(data, count, ppos, buf, res);
 144 }
 145
 146 static const struct file_operations brcmf_debugfs_sdio_counter_ops = {
 147         .owner = THIS_MODULE,
 148         .open = simple_open,
 149         .read = brcmf_debugfs_sdio_counter_read
 150 };
 151
 152 void brcmf_debugfs_create_sdio_count(struct brcmf_pub *drvr,
 153                                      struct brcmf_sdio_count *sdcnt)
 154 {
 155         struct dentry *dentry = drvr->dbgfs_dir;
 156
 157         if (!IS_ERR_OR_NULL(dentry))
 158                 debugfs_create_file("counters", S_IRUGO, dentry,
 159                                     sdcnt, &brcmf_debugfs_sdio_counter_ops);
 160 }
 161
 162 static
 163 ssize_t brcmf_debugfs_fws_stats_read(struct file *f, char __user *data,
 164                                      size_t count, loff_t *ppos)
 165 {
 166         struct brcmf_fws_stats *fwstats = f->private_data;
 167         char buf[650];
 168         int res;
 169
 170         /* only allow read from start */
 171         if (*ppos > 0)
 172                 return 0;
 173
 174         res = scnprintf(buf, sizeof(buf),
 175                         "header_pulls:      %u\n"
 176                         "header_only_pkt:   %u\n"
 177                         "tlv_parse_failed:  %u\n"
 178                         "tlv_invalid_type:  %u\n"
 179                         "mac_update_fails:  %u\n"
 180                         "ps_update_fails:   %u\n"
 181                         "if_update_fails:   %u\n"
 182                         "pkt2bus:           %u\n"
 183                         "generic_error:     %u\n"
 184                         "rollback_success:  %u\n"
 185                         "rollback_failed:   %u\n"
 186                         "delayq_full:       %u\n"
 187                         "supprq_full:       %u\n"
 188                         "txs_indicate:      %u\n"
 189                         "txs_discard:       %u\n"
 190                         "txs_suppr_core:    %u\n"
 191                         "txs_suppr_ps:      %u\n"
 192                         "txs_tossed:        %u\n"
 193                         "txs_host_tossed:   %u\n"
 194                         "bus_flow_block:    %u\n"
 195                         "fws_flow_block:    %u\n"
 196                         "send_pkts:         BK:%u BE:%u VO:%u VI:%u BCMC:%u\n"
 197                         "requested_sent:    BK:%u BE:%u VO:%u VI:%u BCMC:%u\n",
 198                         fwstats->header_pulls,
 199                         fwstats->header_only_pkt,
 200                         fwstats->tlv_parse_failed,
 201                         fwstats->tlv_invalid_type,
 202                         fwstats->mac_update_failed,
 203                         fwstats->mac_ps_update_failed,
 204                         fwstats->if_update_failed,
 205                         fwstats->pkt2bus,
 206                         fwstats->generic_error,
 207                         fwstats->rollback_success,
 208                         fwstats->rollback_failed,
 209                         fwstats->delayq_full_error,
 210                         fwstats->supprq_full_error,
 211                         fwstats->txs_indicate,
 212                         fwstats->txs_discard,
 213                         fwstats->txs_supp_core,
 214                         fwstats->txs_supp_ps,
 215                         fwstats->txs_tossed,
 216                         fwstats->txs_host_tossed,
 217                         fwstats->bus_flow_block,
 218                         fwstats->fws_flow_block,
 219                         fwstats->send_pkts[0], fwstats->send_pkts[1],
 220                         fwstats->send_pkts[2], fwstats->send_pkts[3],
 221                         fwstats->send_pkts[4],
 222                         fwstats->requested_sent[0],
 223                         fwstats->requested_sent[1],
 224                         fwstats->requested_sent[2],
 225                         fwstats->requested_sent[3],
 226                         fwstats->requested_sent[4]);
 227
 228         return simple_read_from_buffer(data, count, ppos, buf, res);
 229 }
 230
 231 static const struct file_operations brcmf_debugfs_fws_stats_ops = {
 232         .owner = THIS_MODULE,
 233         .open = simple_open,
 234         .read = brcmf_debugfs_fws_stats_read
 235 };
 236
 237 void brcmf_debugfs_create_fws_stats(struct brcmf_pub *drvr,
 238                                     struct brcmf_fws_stats *stats)
 239 {
 240         struct dentry *dentry =  drvr->dbgfs_dir;
 241
 242         if (!IS_ERR_OR_NULL(dentry))
 243                 debugfs_create_file("fws_stats", S_IRUGO, dentry,
 244                                     stats, &brcmf_debugfs_fws_stats_ops);
 245 }