forked from Minki/linux
7fe9a3882b
The current cca setting handle is a driver specific call. We need to introduce some 802.15.4 specific layer and mapping 802.15.4 cca modes to driver specific ones inside the 802.15.4 driver. This patch will add such 802.15.4 layer and mapping the cca settings to driver specific ones. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
/* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Authors:
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* Alexander Aring <aar@pengutronix.de>
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*
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* Based on: net/wireless/sysfs.c
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*/
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#include <linux/device.h>
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#include <net/cfg802154.h>
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#include "core.h"
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#include "sysfs.h"
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static inline struct cfg802154_registered_device *
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dev_to_rdev(struct device *dev)
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{
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return container_of(dev, struct cfg802154_registered_device,
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wpan_phy.dev);
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}
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#define SHOW_FMT(name, fmt, member) \
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static ssize_t name ## _show(struct device *dev, \
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struct device_attribute *attr, \
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char *buf) \
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{ \
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return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
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} \
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static DEVICE_ATTR_RO(name)
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SHOW_FMT(index, "%d", wpan_phy_idx);
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static ssize_t name_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct wpan_phy *wpan_phy = &dev_to_rdev(dev)->wpan_phy;
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return sprintf(buf, "%s\n", dev_name(&wpan_phy->dev));
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}
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static DEVICE_ATTR_RO(name);
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#define MASTER_SHOW_COMPLEX(name, format_string, args...) \
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static ssize_t name ## _show(struct device *dev, \
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struct device_attribute *attr, char *buf) \
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{ \
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struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev); \
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int ret; \
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\
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mutex_lock(&phy->pib_lock); \
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ret = snprintf(buf, PAGE_SIZE, format_string "\n", args); \
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mutex_unlock(&phy->pib_lock); \
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return ret; \
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} \
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static DEVICE_ATTR_RO(name)
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#define MASTER_SHOW(field, format_string) \
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MASTER_SHOW_COMPLEX(field, format_string, phy->field)
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MASTER_SHOW(current_channel, "%d");
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MASTER_SHOW(current_page, "%d");
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MASTER_SHOW(transmit_power, "%d +- 1 dB");
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MASTER_SHOW_COMPLEX(cca_mode, "%d", phy->cca.mode);
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static ssize_t channels_supported_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev);
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int ret;
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int i, len = 0;
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mutex_lock(&phy->pib_lock);
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for (i = 0; i < 32; i++) {
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ret = snprintf(buf + len, PAGE_SIZE - len,
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"%#09x\n", phy->channels_supported[i]);
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if (ret < 0)
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break;
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len += ret;
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}
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mutex_unlock(&phy->pib_lock);
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return len;
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}
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static DEVICE_ATTR_RO(channels_supported);
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static void wpan_phy_release(struct device *dev)
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{
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struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
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cfg802154_dev_free(rdev);
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}
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static struct attribute *pmib_attrs[] = {
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&dev_attr_index.attr,
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&dev_attr_name.attr,
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/* below will be removed soon */
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&dev_attr_current_channel.attr,
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&dev_attr_current_page.attr,
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&dev_attr_channels_supported.attr,
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&dev_attr_transmit_power.attr,
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&dev_attr_cca_mode.attr,
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NULL,
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};
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ATTRIBUTE_GROUPS(pmib);
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struct class wpan_phy_class = {
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.name = "ieee802154",
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.dev_release = wpan_phy_release,
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.dev_groups = pmib_groups,
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};
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int wpan_phy_sysfs_init(void)
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{
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return class_register(&wpan_phy_class);
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}
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void wpan_phy_sysfs_exit(void)
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{
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class_unregister(&wpan_phy_class);
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}
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