brcmsmac: hardware info in debugfs (8e21df23) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/net/wireless/brcm80211/brcmsmac/debug.c

+113 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2012 Broadcom Corporation
		* Copyright (c) 2012 Canonical Ltd.
		*
		* 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/if_ether.h>
		#include <linux/if.h>
		#include <linux/net.h>
		#include <linux/netdevice.h>
		#include <linux/ieee80211.h>
		#include <linux/module.h>
		#include <linux/netdevice.h>
		#include <net/mac80211.h>

		#include <defs.h>
		#include <brcmu_wifi.h>
		#include <brcmu_utils.h>
		#include "types.h"
		#include "main.h"
		#include "debug.h"
		#include "brcms_trace_events.h"

		static struct dentry *root_folder;

		void brcms_debugfs_init(void)
		{
		root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
		if (IS_ERR(root_folder))
		root_folder = NULL;
		}

		void brcms_debugfs_exit(void)
		{
		if (!root_folder)
		return;

		debugfs_remove_recursive(root_folder);
		root_folder = NULL;
		}

		int brcms_debugfs_attach(struct brcms_pub *drvr)
		{
		if (!root_folder)
		return -ENODEV;

		drvr->dbgfs_dir = debugfs_create_dir(
		dev_name(&drvr->wlc->hw->d11core->dev), root_folder);
		return PTR_RET(drvr->dbgfs_dir);
		}

		void brcms_debugfs_detach(struct brcms_pub *drvr)
		{
		if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
		debugfs_remove_recursive(drvr->dbgfs_dir);
		}

		struct dentry brcms_debugfs_get_devdir(struct brcms_pub drvr)
		{
		return drvr->dbgfs_dir;
		}

		static
		ssize_t brcms_debugfs_hardware_read(struct file f, char __user data,
		size_t count, loff_t *ppos)
		{
		char buf[128];
		int res;
		struct brcms_pub *drvr = f->private_data;

		/* only allow read from start */
		if (*ppos > 0)
		return 0;

		res = scnprintf(buf, sizeof(buf),
		"board vendor: %x\n"
		"board type: %x\n"
		"board revision: %x\n"
		"board flags: %x\n"
		"board flags2: %x\n"
		"firmware revision: %x\n",
		drvr->wlc->hw->d11core->bus->boardinfo.vendor,
		drvr->wlc->hw->d11core->bus->boardinfo.type,
		drvr->wlc->hw->boardrev,
		drvr->wlc->hw->boardflags,
		drvr->wlc->hw->boardflags2,
		drvr->wlc->ucode_rev
		);

		return simple_read_from_buffer(data, count, ppos, buf, res);
		}

		static const struct file_operations brcms_debugfs_hardware_ops = {
		.owner = THIS_MODULE,
		.open = simple_open,
		.read = brcms_debugfs_hardware_read
		};

		void brcms_debugfs_create_files(struct brcms_pub *drvr)
		{
		struct dentry *dentry = drvr->dbgfs_dir;

		if (!IS_ERR_OR_NULL(dentry))
		debugfs_create_file("hardware", S_IRUGO, dentry,
		drvr, &brcms_debugfs_hardware_ops);
		}

		#define __brcms_fn(fn) \
		void __brcms_ ##fn(struct device dev, const char fmt, ...) \
		{ \

drivers/net/wireless/brcm80211/brcmsmac/debug.h

+23 −0

Original line number	Diff line number	Diff line
		/*
		* 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.
		*/
		#ifndef _BRCMS_DEBUG_H_
		#define _BRCMS_DEBUG_H_

		@@ -49,4 +64,12 @@ void __brcms_dbg(struct device dev, u32 level, const char func,
		#define brcms_dbg_dma(core, f, a...) brcms_dbg(core, BRCM_DL_DMA, f, ##a)
		#define brcms_dbg_ht(core, f, a...) brcms_dbg(core, BRCM_DL_HT, f, ##a)

		struct brcms_pub;
		void brcms_debugfs_init(void);
		void brcms_debugfs_exit(void);
		int brcms_debugfs_attach(struct brcms_pub *drvr);
		void brcms_debugfs_detach(struct brcms_pub *drvr);
		struct dentry brcms_debugfs_get_devdir(struct brcms_pub drvr);
		void brcms_debugfs_create_files(struct brcms_pub *drvr);

		#endif /* _BRCMS_DEBUG_H_ */

drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -846,8 +846,10 @@ static void brcms_free(struct brcms_info *wl)
		/* kill dpc */
		tasklet_kill(&wl->tasklet);

		if (wl->pub)
		if (wl->pub) {
		brcms_debugfs_detach(wl->pub);
		brcms_c_module_unregister(wl->pub, "linux", wl);
		}

		/* free common resources */
		if (wl->wlc) {
		@@ -1077,6 +1079,8 @@ static struct brcms_info brcms_attach(struct bcma_device pdev)
		regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
		wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);

		brcms_debugfs_attach(wl->pub);
		brcms_debugfs_create_files(wl->pub);
		n_adapters_found++;
		return wl;

		@@ -1185,6 +1189,7 @@ static DECLARE_WORK(brcms_driver_work, brcms_driver_init);

		static int __init brcms_module_init(void)
		{
		brcms_debugfs_init();
		if (!schedule_work(&brcms_driver_work))
		return -EBUSY;

		@@ -1202,6 +1207,7 @@ static void __exit brcms_module_exit(void)
		{
		cancel_work_sync(&brcms_driver_work);
		bcma_driver_unregister(&brcms_bcma_driver);
		brcms_debugfs_exit();
		}

		module_init(brcms_module_init);

drivers/net/wireless/brcm80211/brcmsmac/pub.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -176,6 +176,7 @@ struct brcms_pub {
		bool phy_11ncapable; /* the PHY/HW is capable of 802.11N */

		struct wl_cnt _cnt; / low-level counters in driver */
		struct dentry *dbgfs_dir;
		};

		enum wlc_par_id {