[deliverable/linux.git] / drivers / net / wireless / brcm80211 / brcmfmac / dhd_dbg.c

/*
 * 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"
#include "tracepoint.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);
}
Commit	Line	Data
d319a7cf AS	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>
1d4fd8d7	17	#include <linux/netdevice.h>
80969836	18	#include <linux/module.h>
d319a7cf	19
d319a7cf AS	20	#include <brcmu_wifi.h>
	21	#include <brcmu_utils.h>
	22	#include "dhd.h"
d9cb2596	23	#include "dhd_bus.h"
80969836	24	#include "dhd_dbg.h"
e5483576	25	#include "tracepoint.h"
d319a7cf AS	26
	27	static struct dentry *root_folder;
	28
	29	void brcmf_debugfs_init(void)
	30	{
	31	root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
	32	if (IS_ERR(root_folder))
	33	root_folder = NULL;
	34	}
	35
	36	void brcmf_debugfs_exit(void)
	37	{
	38	if (!root_folder)
	39	return;
	40
	41	debugfs_remove_recursive(root_folder);
	42	root_folder = NULL;
	43	}
	44
	45	int brcmf_debugfs_attach(struct brcmf_pub *drvr)
	46	{
d9cb2596 AS	47	struct device *dev = drvr->bus_if->dev;
d9cb2596 AS	48
d319a7cf AS	49	if (!root_folder)
	50	return -ENODEV;
	51
d9cb2596	52	drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
d319a7cf AS	53	return PTR_RET(drvr->dbgfs_dir);
	54	}
	55
	56	void brcmf_debugfs_detach(struct brcmf_pub *drvr)
	57	{
	58	if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
	59	debugfs_remove_recursive(drvr->dbgfs_dir);
	60	}
	61
	62	struct dentry brcmf_debugfs_get_devdir(struct brcmf_pub drvr)
	63	{
	64	return drvr->dbgfs_dir;
	65	}
80969836 AS	66
	67	static
	68	ssize_t brcmf_debugfs_sdio_counter_read(struct file f, char __user data,
	69	size_t count, loff_t *ppos)
	70	{
	71	struct brcmf_sdio_count *sdcnt = f->private_data;
	72	char buf[750];
	73	int res;
	74
	75	/* only allow read from start */
	76	if (*ppos > 0)
	77	return 0;
	78
	79	res = scnprintf(buf, sizeof(buf),
	80	"intrcount: %u\nlastintrs: %u\n"
	81	"pollcnt: %u\nregfails: %u\n"
	82	"tx_sderrs: %u\nfcqueued: %u\n"
	83	"rxrtx: %u\nrx_toolong: %u\n"
	84	"rxc_errors: %u\nrx_hdrfail: %u\n"
	85	"rx_badhdr: %u\nrx_badseq: %u\n"
	86	"fc_rcvd: %u\nfc_xoff: %u\n"
	87	"fc_xon: %u\nrxglomfail: %u\n"
	88	"rxglomframes: %u\nrxglompkts: %u\n"
	89	"f2rxhdrs: %u\nf2rxdata: %u\n"
	90	"f2txdata: %u\nf1regdata: %u\n"
	91	"tickcnt: %u\ntx_ctlerrs: %lu\n"
	92	"tx_ctlpkts: %lu\nrx_ctlerrs: %lu\n"
	93	"rx_ctlpkts: %lu\nrx_readahead: %lu\n",
	94	sdcnt->intrcount, sdcnt->lastintrs,
	95	sdcnt->pollcnt, sdcnt->regfails,
	96	sdcnt->tx_sderrs, sdcnt->fcqueued,
	97	sdcnt->rxrtx, sdcnt->rx_toolong,
	98	sdcnt->rxc_errors, sdcnt->rx_hdrfail,
	99	sdcnt->rx_badhdr, sdcnt->rx_badseq,
	100	sdcnt->fc_rcvd, sdcnt->fc_xoff,
	101	sdcnt->fc_xon, sdcnt->rxglomfail,
	102	sdcnt->rxglomframes, sdcnt->rxglompkts,
	103	sdcnt->f2rxhdrs, sdcnt->f2rxdata,
	104	sdcnt->f2txdata, sdcnt->f1regdata,
	105	sdcnt->tickcnt, sdcnt->tx_ctlerrs,
	106	sdcnt->tx_ctlpkts, sdcnt->rx_ctlerrs,
	107	sdcnt->rx_ctlpkts, sdcnt->rx_readahead_cnt);
	108
	109	return simple_read_from_buffer(data, count, ppos, buf, res);
	110	}
	111
	112	static const struct file_operations brcmf_debugfs_sdio_counter_ops = {
	113	.owner = THIS_MODULE,
	114	.open = simple_open,
	115	.read = brcmf_debugfs_sdio_counter_read
	116	};
	117
	118	void brcmf_debugfs_create_sdio_count(struct brcmf_pub *drvr,
	119	struct brcmf_sdio_count *sdcnt)
	120	{
	121	struct dentry *dentry = drvr->dbgfs_dir;
	122
	123	if (!IS_ERR_OR_NULL(dentry))
	124	debugfs_create_file("counters", S_IRUGO, dentry,
	125	sdcnt, &brcmf_debugfs_sdio_counter_ops);
	126	}