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/netdevice.h>
18 #include <linux/module.h>
20 #include <brcmu_wifi.h>
21 #include <brcmu_utils.h>
26 static struct dentry *root_folder;
28 void brcmf_debugfs_init(void)
30 root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
31 if (IS_ERR(root_folder))
35 void brcmf_debugfs_exit(void)
40 debugfs_remove_recursive(root_folder);
44 int brcmf_debugfs_attach(struct brcmf_pub *drvr)
46 struct device *dev = drvr->bus_if->dev;
51 drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
52 return PTR_RET(drvr->dbgfs_dir);
55 void brcmf_debugfs_detach(struct brcmf_pub *drvr)
57 if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
58 debugfs_remove_recursive(drvr->dbgfs_dir);
61 struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
63 return drvr->dbgfs_dir;
67 ssize_t brcmf_debugfs_sdio_counter_read(struct file *f, char __user *data,
68 size_t count, loff_t *ppos)
70 struct brcmf_sdio_count *sdcnt = f->private_data;
74 /* only allow read from start */
78 res = scnprintf(buf, sizeof(buf),
79 "intrcount: %u\nlastintrs: %u\n"
80 "pollcnt: %u\nregfails: %u\n"
81 "tx_sderrs: %u\nfcqueued: %u\n"
82 "rxrtx: %u\nrx_toolong: %u\n"
83 "rxc_errors: %u\nrx_hdrfail: %u\n"
84 "rx_badhdr: %u\nrx_badseq: %u\n"
85 "fc_rcvd: %u\nfc_xoff: %u\n"
86 "fc_xon: %u\nrxglomfail: %u\n"
87 "rxglomframes: %u\nrxglompkts: %u\n"
88 "f2rxhdrs: %u\nf2rxdata: %u\n"
89 "f2txdata: %u\nf1regdata: %u\n"
90 "tickcnt: %u\ntx_ctlerrs: %lu\n"
91 "tx_ctlpkts: %lu\nrx_ctlerrs: %lu\n"
92 "rx_ctlpkts: %lu\nrx_readahead: %lu\n",
93 sdcnt->intrcount, sdcnt->lastintrs,
94 sdcnt->pollcnt, sdcnt->regfails,
95 sdcnt->tx_sderrs, sdcnt->fcqueued,
96 sdcnt->rxrtx, sdcnt->rx_toolong,
97 sdcnt->rxc_errors, sdcnt->rx_hdrfail,
98 sdcnt->rx_badhdr, sdcnt->rx_badseq,
99 sdcnt->fc_rcvd, sdcnt->fc_xoff,
100 sdcnt->fc_xon, sdcnt->rxglomfail,
101 sdcnt->rxglomframes, sdcnt->rxglompkts,
102 sdcnt->f2rxhdrs, sdcnt->f2rxdata,
103 sdcnt->f2txdata, sdcnt->f1regdata,
104 sdcnt->tickcnt, sdcnt->tx_ctlerrs,
105 sdcnt->tx_ctlpkts, sdcnt->rx_ctlerrs,
106 sdcnt->rx_ctlpkts, sdcnt->rx_readahead_cnt);
108 return simple_read_from_buffer(data, count, ppos, buf, res);
111 static const struct file_operations brcmf_debugfs_sdio_counter_ops = {
112 .owner = THIS_MODULE,
114 .read = brcmf_debugfs_sdio_counter_read
117 void brcmf_debugfs_create_sdio_count(struct brcmf_pub *drvr,
118 struct brcmf_sdio_count *sdcnt)
120 struct dentry *dentry = drvr->dbgfs_dir;
122 if (!IS_ERR_OR_NULL(dentry))
123 debugfs_create_file("counters", S_IRUGO, dentry,
124 sdcnt, &brcmf_debugfs_sdio_counter_ops);