2 * Copyright (c) 2012 Broadcom Corporation
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.
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.
16 #include <linux/debugfs.h>
17 #include <linux/if_ether.h>
19 #include <linux/netdevice.h>
20 #include <linux/ieee80211.h>
21 #include <linux/module.h>
22 #include <linux/netdevice.h>
25 #include <brcmu_wifi.h>
26 #include <brcmu_utils.h>
31 static struct dentry *root_folder;
33 void brcmf_debugfs_init(void)
35 root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
36 if (IS_ERR(root_folder))
40 void brcmf_debugfs_exit(void)
45 debugfs_remove_recursive(root_folder);
49 int brcmf_debugfs_attach(struct brcmf_pub *drvr)
54 drvr->dbgfs_dir = debugfs_create_dir(dev_name(drvr->dev), root_folder);
55 return PTR_RET(drvr->dbgfs_dir);
58 void brcmf_debugfs_detach(struct brcmf_pub *drvr)
60 if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
61 debugfs_remove_recursive(drvr->dbgfs_dir);
64 struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
66 return drvr->dbgfs_dir;
70 ssize_t brcmf_debugfs_sdio_counter_read(struct file *f, char __user *data,
71 size_t count, loff_t *ppos)
73 struct brcmf_sdio_count *sdcnt = f->private_data;
77 /* only allow read from start */
81 res = scnprintf(buf, sizeof(buf),
82 "intrcount: %u\nlastintrs: %u\n"
83 "pollcnt: %u\nregfails: %u\n"
84 "tx_sderrs: %u\nfcqueued: %u\n"
85 "rxrtx: %u\nrx_toolong: %u\n"
86 "rxc_errors: %u\nrx_hdrfail: %u\n"
87 "rx_badhdr: %u\nrx_badseq: %u\n"
88 "fc_rcvd: %u\nfc_xoff: %u\n"
89 "fc_xon: %u\nrxglomfail: %u\n"
90 "rxglomframes: %u\nrxglompkts: %u\n"
91 "f2rxhdrs: %u\nf2rxdata: %u\n"
92 "f2txdata: %u\nf1regdata: %u\n"
93 "tickcnt: %u\ntx_ctlerrs: %lu\n"
94 "tx_ctlpkts: %lu\nrx_ctlerrs: %lu\n"
95 "rx_ctlpkts: %lu\nrx_readahead: %lu\n",
96 sdcnt->intrcount, sdcnt->lastintrs,
97 sdcnt->pollcnt, sdcnt->regfails,
98 sdcnt->tx_sderrs, sdcnt->fcqueued,
99 sdcnt->rxrtx, sdcnt->rx_toolong,
100 sdcnt->rxc_errors, sdcnt->rx_hdrfail,
101 sdcnt->rx_badhdr, sdcnt->rx_badseq,
102 sdcnt->fc_rcvd, sdcnt->fc_xoff,
103 sdcnt->fc_xon, sdcnt->rxglomfail,
104 sdcnt->rxglomframes, sdcnt->rxglompkts,
105 sdcnt->f2rxhdrs, sdcnt->f2rxdata,
106 sdcnt->f2txdata, sdcnt->f1regdata,
107 sdcnt->tickcnt, sdcnt->tx_ctlerrs,
108 sdcnt->tx_ctlpkts, sdcnt->rx_ctlerrs,
109 sdcnt->rx_ctlpkts, sdcnt->rx_readahead_cnt);
111 return simple_read_from_buffer(data, count, ppos, buf, res);
114 static const struct file_operations brcmf_debugfs_sdio_counter_ops = {
115 .owner = THIS_MODULE,
117 .read = brcmf_debugfs_sdio_counter_read
120 void brcmf_debugfs_create_sdio_count(struct brcmf_pub *drvr,
121 struct brcmf_sdio_count *sdcnt)
123 struct dentry *dentry = drvr->dbgfs_dir;
125 if (!IS_ERR_OR_NULL(dentry))
126 debugfs_create_file("counters", S_IRUGO, dentry,
127 sdcnt, &brcmf_debugfs_sdio_counter_ops);