aboutsummaryrefslogtreecommitdiff
path: root/net/rfkill/core.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/rfkill/core.c')
-rw-r--r--net/rfkill/core.c144
1 files changed, 80 insertions, 64 deletions
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
index 0198191b756..b3b16c070a7 100644
--- a/net/rfkill/core.c
+++ b/net/rfkill/core.c
@@ -14,9 +14,7 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kernel.h>
@@ -29,6 +27,7 @@
#include <linux/rfkill.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
+#include <linux/device.h>
#include <linux/miscdevice.h>
#include <linux/wait.h>
#include <linux/poll.h>
@@ -149,6 +148,20 @@ static void rfkill_led_trigger_activate(struct led_classdev *led)
rfkill_led_trigger_event(rfkill);
}
+const char *rfkill_get_led_trigger_name(struct rfkill *rfkill)
+{
+ return rfkill->led_trigger.name;
+}
+EXPORT_SYMBOL(rfkill_get_led_trigger_name);
+
+void rfkill_set_led_trigger_name(struct rfkill *rfkill, const char *name)
+{
+ BUG_ON(!rfkill);
+
+ rfkill->ledtrigname = name;
+}
+EXPORT_SYMBOL(rfkill_set_led_trigger_name);
+
static int rfkill_led_trigger_register(struct rfkill *rfkill)
{
rfkill->led_trigger.name = rfkill->ledtrigname
@@ -235,7 +248,7 @@ static bool __rfkill_set_hw_state(struct rfkill *rfkill,
else
rfkill->state &= ~RFKILL_BLOCK_HW;
*change = prev != blocked;
- any = rfkill->state & RFKILL_BLOCK_ANY;
+ any = !!(rfkill->state & RFKILL_BLOCK_ANY);
spin_unlock_irqrestore(&rfkill->lock, flags);
rfkill_led_trigger_event(rfkill);
@@ -255,6 +268,7 @@ static bool __rfkill_set_hw_state(struct rfkill *rfkill,
static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
{
unsigned long flags;
+ bool prev, curr;
int err;
if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
@@ -269,6 +283,8 @@ static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
rfkill->ops->query(rfkill, rfkill->data);
spin_lock_irqsave(&rfkill->lock, flags);
+ prev = rfkill->state & RFKILL_BLOCK_SW;
+
if (rfkill->state & RFKILL_BLOCK_SW)
rfkill->state |= RFKILL_BLOCK_SW_PREV;
else
@@ -298,10 +314,13 @@ static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
}
rfkill->state &= ~RFKILL_BLOCK_SW_SETCALL;
rfkill->state &= ~RFKILL_BLOCK_SW_PREV;
+ curr = rfkill->state & RFKILL_BLOCK_SW;
spin_unlock_irqrestore(&rfkill->lock, flags);
rfkill_led_trigger_event(rfkill);
- rfkill_event(rfkill);
+
+ if (prev != curr)
+ rfkill_event(rfkill);
}
#ifdef CONFIG_RFKILL_INPUT
@@ -324,7 +343,7 @@ static void __rfkill_switch_all(const enum rfkill_type type, bool blocked)
rfkill_global_states[type].cur = blocked;
list_for_each_entry(rfkill, &rfkill_list, node) {
- if (rfkill->type != type)
+ if (rfkill->type != type && type != RFKILL_TYPE_ALL)
continue;
rfkill_set_block(rfkill, blocked);
@@ -555,18 +574,18 @@ void rfkill_set_states(struct rfkill *rfkill, bool sw, bool hw)
}
EXPORT_SYMBOL(rfkill_set_states);
-static ssize_t rfkill_name_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t name_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct rfkill *rfkill = to_rfkill(dev);
return sprintf(buf, "%s\n", rfkill->name);
}
+static DEVICE_ATTR_RO(name);
static const char *rfkill_get_type_str(enum rfkill_type type)
{
- BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_FM + 1);
+ BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_NFC + 1);
switch (type) {
case RFKILL_TYPE_WLAN:
@@ -583,59 +602,59 @@ static const char *rfkill_get_type_str(enum rfkill_type type)
return "gps";
case RFKILL_TYPE_FM:
return "fm";
+ case RFKILL_TYPE_NFC:
+ return "nfc";
default:
BUG();
}
}
-static ssize_t rfkill_type_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t type_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct rfkill *rfkill = to_rfkill(dev);
return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
}
+static DEVICE_ATTR_RO(type);
-static ssize_t rfkill_idx_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t index_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct rfkill *rfkill = to_rfkill(dev);
return sprintf(buf, "%d\n", rfkill->idx);
}
+static DEVICE_ATTR_RO(index);
-static ssize_t rfkill_persistent_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t persistent_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct rfkill *rfkill = to_rfkill(dev);
return sprintf(buf, "%d\n", rfkill->persistent);
}
+static DEVICE_ATTR_RO(persistent);
-static ssize_t rfkill_hard_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t hard_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct rfkill *rfkill = to_rfkill(dev);
return sprintf(buf, "%d\n", (rfkill->state & RFKILL_BLOCK_HW) ? 1 : 0 );
}
+static DEVICE_ATTR_RO(hard);
-static ssize_t rfkill_soft_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t soft_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct rfkill *rfkill = to_rfkill(dev);
return sprintf(buf, "%d\n", (rfkill->state & RFKILL_BLOCK_SW) ? 1 : 0 );
}
-static ssize_t rfkill_soft_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t soft_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct rfkill *rfkill = to_rfkill(dev);
unsigned long state;
@@ -644,7 +663,7 @@ static ssize_t rfkill_soft_store(struct device *dev,
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- err = strict_strtoul(buf, 0, &state);
+ err = kstrtoul(buf, 0, &state);
if (err)
return err;
@@ -655,8 +674,9 @@ static ssize_t rfkill_soft_store(struct device *dev,
rfkill_set_block(rfkill, state);
mutex_unlock(&rfkill_global_mutex);
- return err ?: count;
+ return count;
}
+static DEVICE_ATTR_RW(soft);
static u8 user_state_from_blocked(unsigned long state)
{
@@ -668,18 +688,16 @@ static u8 user_state_from_blocked(unsigned long state)
return RFKILL_USER_STATE_UNBLOCKED;
}
-static ssize_t rfkill_state_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t state_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct rfkill *rfkill = to_rfkill(dev);
return sprintf(buf, "%d\n", user_state_from_blocked(rfkill->state));
}
-static ssize_t rfkill_state_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t state_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct rfkill *rfkill = to_rfkill(dev);
unsigned long state;
@@ -688,7 +706,7 @@ static ssize_t rfkill_state_store(struct device *dev,
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- err = strict_strtoul(buf, 0, &state);
+ err = kstrtoul(buf, 0, &state);
if (err)
return err;
@@ -700,34 +718,29 @@ static ssize_t rfkill_state_store(struct device *dev,
rfkill_set_block(rfkill, state == RFKILL_USER_STATE_SOFT_BLOCKED);
mutex_unlock(&rfkill_global_mutex);
- return err ?: count;
+ return count;
}
+static DEVICE_ATTR_RW(state);
-static ssize_t rfkill_claim_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t claim_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
return sprintf(buf, "%d\n", 0);
}
-
-static ssize_t rfkill_claim_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- return -EOPNOTSUPP;
-}
-
-static struct device_attribute rfkill_dev_attrs[] = {
- __ATTR(name, S_IRUGO, rfkill_name_show, NULL),
- __ATTR(type, S_IRUGO, rfkill_type_show, NULL),
- __ATTR(index, S_IRUGO, rfkill_idx_show, NULL),
- __ATTR(persistent, S_IRUGO, rfkill_persistent_show, NULL),
- __ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
- __ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
- __ATTR(soft, S_IRUGO|S_IWUSR, rfkill_soft_show, rfkill_soft_store),
- __ATTR(hard, S_IRUGO, rfkill_hard_show, NULL),
- __ATTR_NULL
+static DEVICE_ATTR_RO(claim);
+
+static struct attribute *rfkill_dev_attrs[] = {
+ &dev_attr_name.attr,
+ &dev_attr_type.attr,
+ &dev_attr_index.attr,
+ &dev_attr_persistent.attr,
+ &dev_attr_state.attr,
+ &dev_attr_claim.attr,
+ &dev_attr_soft.attr,
+ &dev_attr_hard.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(rfkill_dev);
static void rfkill_release(struct device *dev)
{
@@ -776,7 +789,8 @@ void rfkill_resume_polling(struct rfkill *rfkill)
if (!rfkill->ops->poll)
return;
- schedule_work(&rfkill->poll_work.work);
+ queue_delayed_work(system_power_efficient_wq,
+ &rfkill->poll_work, 0);
}
EXPORT_SYMBOL(rfkill_resume_polling);
@@ -807,7 +821,7 @@ static int rfkill_resume(struct device *dev)
static struct class rfkill_class = {
.name = "rfkill",
.dev_release = rfkill_release,
- .dev_attrs = rfkill_dev_attrs,
+ .dev_groups = rfkill_dev_groups,
.dev_uevent = rfkill_dev_uevent,
.suspend = rfkill_suspend,
.resume = rfkill_resume,
@@ -881,7 +895,8 @@ static void rfkill_poll(struct work_struct *work)
*/
rfkill->ops->poll(rfkill, rfkill->data);
- schedule_delayed_work(&rfkill->poll_work,
+ queue_delayed_work(system_power_efficient_wq,
+ &rfkill->poll_work,
round_jiffies_relative(POLL_INTERVAL));
}
@@ -945,7 +960,8 @@ int __must_check rfkill_register(struct rfkill *rfkill)
INIT_WORK(&rfkill->sync_work, rfkill_sync_work);
if (rfkill->ops->poll)
- schedule_delayed_work(&rfkill->poll_work,
+ queue_delayed_work(system_power_efficient_wq,
+ &rfkill->poll_work,
round_jiffies_relative(POLL_INTERVAL));
if (!rfkill->persistent || rfkill_epo_lock_active) {
@@ -1024,7 +1040,6 @@ static int rfkill_fop_open(struct inode *inode, struct file *file)
* start getting events from elsewhere but hold mtx to get
* startup events added first
*/
- list_add(&data->list, &rfkill_fds);
list_for_each_entry(rfkill, &rfkill_list, node) {
ev = kzalloc(sizeof(*ev), GFP_KERNEL);
@@ -1033,6 +1048,7 @@ static int rfkill_fop_open(struct inode *inode, struct file *file)
rfkill_fill_event(&ev->ev, rfkill, RFKILL_OP_ADD);
list_add_tail(&ev->list, &data->events);
}
+ list_add(&data->list, &rfkill_fds);
mutex_unlock(&data->mtx);
mutex_unlock(&rfkill_global_mutex);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-05 08:19:56 +0000