diff options
author | Kalle Valo <kvalo@codeaurora.org> | 2015-11-17 19:49:23 +0200 |
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committer | Kalle Valo <kvalo@codeaurora.org> | 2015-11-18 11:20:36 +0200 |
commit | 58619b14d106e453e3924810fac16a8644b04db1 (patch) | |
tree | 46f76b765f3e469cb651ae1d7dc8cafac4fc975e /drivers/net/wireless/broadcom/b43/sysfs.c | |
parent | 30fe0f9b8c755d9aab04bb7c98ce9c7835c3bd24 (diff) | |
download | linux-58619b14d106e453e3924810fac16a8644b04db1.tar.bz2 |
b43: move under broadcom vendor directory
Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom/b43/sysfs.c')
-rw-r--r-- | drivers/net/wireless/broadcom/b43/sysfs.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/b43/sysfs.c b/drivers/net/wireless/broadcom/b43/sysfs.c new file mode 100644 index 000000000000..3190493bd07f --- /dev/null +++ b/drivers/net/wireless/broadcom/b43/sysfs.c @@ -0,0 +1,155 @@ +/* + + Broadcom B43 wireless driver + + SYSFS support routines + + Copyright (c) 2006 Michael Buesch <m@bues.ch> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include <linux/capability.h> +#include <linux/io.h> + +#include "b43.h" +#include "sysfs.h" +#include "main.h" +#include "phy_common.h" + +#define GENERIC_FILESIZE 64 + +static int get_integer(const char *buf, size_t count) +{ + char tmp[10 + 1] = { 0 }; + int ret = -EINVAL; + + if (count == 0) + goto out; + count = min_t(size_t, count, 10); + memcpy(tmp, buf, count); + ret = simple_strtol(tmp, NULL, 10); + out: + return ret; +} + +static ssize_t b43_attr_interfmode_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct b43_wldev *wldev = dev_to_b43_wldev(dev); + ssize_t count = 0; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + mutex_lock(&wldev->wl->mutex); + + if (wldev->phy.type != B43_PHYTYPE_G) { + mutex_unlock(&wldev->wl->mutex); + return -ENOSYS; + } + + switch (wldev->phy.g->interfmode) { + case B43_INTERFMODE_NONE: + count = + snprintf(buf, PAGE_SIZE, + "0 (No Interference Mitigation)\n"); + break; + case B43_INTERFMODE_NONWLAN: + count = + snprintf(buf, PAGE_SIZE, + "1 (Non-WLAN Interference Mitigation)\n"); + break; + case B43_INTERFMODE_MANUALWLAN: + count = + snprintf(buf, PAGE_SIZE, + "2 (WLAN Interference Mitigation)\n"); + break; + default: + B43_WARN_ON(1); + } + + mutex_unlock(&wldev->wl->mutex); + + return count; +} + +static ssize_t b43_attr_interfmode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct b43_wldev *wldev = dev_to_b43_wldev(dev); + int err; + int mode; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + mode = get_integer(buf, count); + switch (mode) { + case 0: + mode = B43_INTERFMODE_NONE; + break; + case 1: + mode = B43_INTERFMODE_NONWLAN; + break; + case 2: + mode = B43_INTERFMODE_MANUALWLAN; + break; + case 3: + mode = B43_INTERFMODE_AUTOWLAN; + break; + default: + return -EINVAL; + } + + mutex_lock(&wldev->wl->mutex); + + if (wldev->phy.ops->interf_mitigation) { + err = wldev->phy.ops->interf_mitigation(wldev, mode); + if (err) { + b43err(wldev->wl, "Interference Mitigation not " + "supported by device\n"); + } + } else + err = -ENOSYS; + + mmiowb(); + mutex_unlock(&wldev->wl->mutex); + + return err ? err : count; +} + +static DEVICE_ATTR(interference, 0644, + b43_attr_interfmode_show, b43_attr_interfmode_store); + +int b43_sysfs_register(struct b43_wldev *wldev) +{ + struct device *dev = wldev->dev->dev; + + B43_WARN_ON(b43_status(wldev) != B43_STAT_INITIALIZED); + + return device_create_file(dev, &dev_attr_interference); +} + +void b43_sysfs_unregister(struct b43_wldev *wldev) +{ + struct device *dev = wldev->dev->dev; + + device_remove_file(dev, &dev_attr_interference); +} |