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/*
* Copyright (c) 2012 Broadcom Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/debugfs.h>
#include <linux/netdevice.h>
#include <linux/module.h>
#include <brcmu_wifi.h>
#include <brcmu_utils.h>
#include "dhd.h"
#include "dhd_bus.h"
#include "dhd_dbg.h"
static struct dentry *root_folder;
void brcmf_debugfs_init(void)
{
root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
if (IS_ERR(root_folder))
root_folder = NULL;
}
void brcmf_debugfs_exit(void)
{
if (!root_folder)
return;
debugfs_remove_recursive(root_folder);
root_folder = NULL;
}
int brcmf_debugfs_attach(struct brcmf_pub *drvr)
{
struct device *dev = drvr->bus_if->dev;
if (!root_folder)
return -ENODEV;
drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
return PTR_RET(drvr->dbgfs_dir);
}
void brcmf_debugfs_detach(struct brcmf_pub *drvr)
{
if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
debugfs_remove_recursive(drvr->dbgfs_dir);
}
struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
{
return drvr->dbgfs_dir;
}
static
ssize_t brcmf_debugfs_sdio_counter_read(struct file *f, char __user *data,
size_t count, loff_t *ppos)
{
struct brcmf_sdio_count *sdcnt = f->private_data;
char buf[750];
int res;
/* only allow read from start */
if (*ppos > 0)
return 0;
res = scnprintf(buf, sizeof(buf),
"intrcount: %u\nlastintrs: %u\n"
"pollcnt: %u\nregfails: %u\n"
"tx_sderrs: %u\nfcqueued: %u\n"
"rxrtx: %u\nrx_toolong: %u\n"
"rxc_errors: %u\nrx_hdrfail: %u\n"
"rx_badhdr: %u\nrx_badseq: %u\n"
"fc_rcvd: %u\nfc_xoff: %u\n"
"fc_xon: %u\nrxglomfail: %u\n"
"rxglomframes: %u\nrxglompkts: %u\n"
"f2rxhdrs: %u\nf2rxdata: %u\n"
"f2txdata: %u\nf1regdata: %u\n"
"tickcnt: %u\ntx_ctlerrs: %lu\n"
"tx_ctlpkts: %lu\nrx_ctlerrs: %lu\n"
"rx_ctlpkts: %lu\nrx_readahead: %lu\n",
sdcnt->intrcount, sdcnt->lastintrs,
sdcnt->pollcnt, sdcnt->regfails,
sdcnt->tx_sderrs, sdcnt->fcqueued,
sdcnt->rxrtx, sdcnt->rx_toolong,
sdcnt->rxc_errors, sdcnt->rx_hdrfail,
sdcnt->rx_badhdr, sdcnt->rx_badseq,
sdcnt->fc_rcvd, sdcnt->fc_xoff,
sdcnt->fc_xon, sdcnt->rxglomfail,
sdcnt->rxglomframes, sdcnt->rxglompkts,
sdcnt->f2rxhdrs, sdcnt->f2rxdata,
sdcnt->f2txdata, sdcnt->f1regdata,
sdcnt->tickcnt, sdcnt->tx_ctlerrs,
sdcnt->tx_ctlpkts, sdcnt->rx_ctlerrs,
sdcnt->rx_ctlpkts, sdcnt->rx_readahead_cnt);
return simple_read_from_buffer(data, count, ppos, buf, res);
}
static const struct file_operations brcmf_debugfs_sdio_counter_ops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = brcmf_debugfs_sdio_counter_read
};
void brcmf_debugfs_create_sdio_count(struct brcmf_pub *drvr,
struct brcmf_sdio_count *sdcnt)
{
struct dentry *dentry = drvr->dbgfs_dir;
if (!IS_ERR_OR_NULL(dentry))
debugfs_create_file("counters", S_IRUGO, dentry,
sdcnt, &brcmf_debugfs_sdio_counter_ops);
}
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