| /* This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 |
| * as published by the Free Software Foundation. |
| * |
| * 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. |
| * |
| * Authors: |
| * Alexander Aring <aar@pengutronix.de> |
| * |
| * Based on: net/wireless/sysfs.c |
| */ |
| |
| #include <linux/device.h> |
| |
| #include <net/cfg802154.h> |
| |
| #include "core.h" |
| #include "sysfs.h" |
| |
| static inline struct cfg802154_registered_device * |
| dev_to_rdev(struct device *dev) |
| { |
| return container_of(dev, struct cfg802154_registered_device, |
| wpan_phy.dev); |
| } |
| |
| #define MASTER_SHOW_COMPLEX(name, format_string, args...) \ |
| static ssize_t name ## _show(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev); \ |
| int ret; \ |
| \ |
| mutex_lock(&phy->pib_lock); \ |
| ret = snprintf(buf, PAGE_SIZE, format_string "\n", args); \ |
| mutex_unlock(&phy->pib_lock); \ |
| return ret; \ |
| } \ |
| static DEVICE_ATTR_RO(name) |
| |
| #define MASTER_SHOW(field, format_string) \ |
| MASTER_SHOW_COMPLEX(field, format_string, phy->field) |
| |
| MASTER_SHOW(current_channel, "%d"); |
| MASTER_SHOW(current_page, "%d"); |
| MASTER_SHOW(transmit_power, "%d +- 1 dB"); |
| MASTER_SHOW(cca_mode, "%d"); |
| |
| static ssize_t channels_supported_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev); |
| int ret; |
| int i, len = 0; |
| |
| mutex_lock(&phy->pib_lock); |
| for (i = 0; i < 32; i++) { |
| ret = snprintf(buf + len, PAGE_SIZE - len, |
| "%#09x\n", phy->channels_supported[i]); |
| if (ret < 0) |
| break; |
| len += ret; |
| } |
| mutex_unlock(&phy->pib_lock); |
| return len; |
| } |
| static DEVICE_ATTR_RO(channels_supported); |
| |
| static void wpan_phy_release(struct device *dev) |
| { |
| struct cfg802154_registered_device *rdev = dev_to_rdev(dev); |
| |
| cfg802154_dev_free(rdev); |
| } |
| |
| static struct attribute *pmib_attrs[] = { |
| &dev_attr_current_channel.attr, |
| &dev_attr_current_page.attr, |
| &dev_attr_channels_supported.attr, |
| &dev_attr_transmit_power.attr, |
| &dev_attr_cca_mode.attr, |
| NULL, |
| }; |
| ATTRIBUTE_GROUPS(pmib); |
| |
| struct class wpan_phy_class = { |
| .name = "ieee802154", |
| .dev_release = wpan_phy_release, |
| .dev_groups = pmib_groups, |
| }; |
| |
| int wpan_phy_sysfs_init(void) |
| { |
| return class_register(&wpan_phy_class); |
| } |
| |
| void wpan_phy_sysfs_exit(void) |
| { |
| class_unregister(&wpan_phy_class); |
| } |