diff options
author | Arend van Spriel <arend@broadcom.com> | 2012-06-09 22:51:43 +0200 |
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committer | John W. Linville <linville@tuxdriver.com> | 2012-06-13 14:35:49 -0400 |
commit | d319a7cfd9d80a2e2359e978ba88991531312ee6 (patch) | |
tree | 77164556f82eaf773f9785207190ce50aa5a5bef /drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c | |
parent | 5e16e8ee3a14b59366d25f075926da3ca5d03d11 (diff) | |
download | op-kernel-dev-d319a7cfd9d80a2e2359e978ba88991531312ee6.zip op-kernel-dev-d319a7cfd9d80a2e2359e978ba88991531312ee6.tar.gz |
brcmfmac: add debugfs helper functions
This patch adds debugfs support to brcmfmac. It provide helper functions
to setup the debugfs folder structure for the driver, which has following
hierarchy:
<debugfs_mount>/brcmfmac/<dev_name>/
ie.: /sys/kernel/debug/brcmfmac/mmc0:0001:2/
The new source file provides functions to create and remove the two
folders and a function to retrieve the device-specific folder so files
can be created in it.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c')
-rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c new file mode 100644 index 0000000..0a7a3d5 --- /dev/null +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c @@ -0,0 +1,63 @@ +/* + * 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/if_ether.h> +#include <linux/if.h> +#include <linux/ieee80211.h> + +#include <defs.h> +#include <brcmu_wifi.h> +#include <brcmu_utils.h> +#include "dhd.h" +#include "dhd_bus.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) +{ + if (!root_folder) + return -ENODEV; + + drvr->dbgfs_dir = debugfs_create_dir(dev_name(drvr->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; +} |