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rt2x00: Remove input_polldev requirements for rfkill

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With the new rfkill interface there is no longer a need
for the input_polldev. Create a delayed_work structure
which we can put on the mac80211 workqueue and poll the
hardware every 1000ms.

v2: Decrease poll frequency from 100ms to 1000ms

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn
2008-07-04 14:51:39 +02:00
committed by John W. Linville
parent f2cae6c5e4
commit 50db7875d9
5 changed files with 38 additions and 93 deletions
Download Patch File Download Diff File Expand all files Collapse all files

107
drivers/net/wireless/rt2x00/rt2x00rfkill.c
View File

@@ -23,7 +23,6 @@
Abstract: rt2x00 rfkill routines.
*/
#include <linux/input-polldev.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/rfkill.h>
@@ -61,15 +60,35 @@ static int rt2x00rfkill_toggle_radio(void *data, enum rfkill_state state)
return retval;
}
static void rt2x00rfkill_poll(struct input_polled_dev *poll_dev)
static int rt2x00rfkill_get_state(void *data, enum rfkill_state *state)
{
struct rt2x00_dev *rt2x00dev = poll_dev->private;
int state = rt2x00dev->ops->lib->rfkill_poll(rt2x00dev);
struct rt2x00_dev *rt2x00dev = data;
if (rt2x00dev->rfkill->state != state) {
input_report_key(poll_dev->input, KEY_WLAN, 1);
input_report_key(poll_dev->input, KEY_WLAN, 0);
}
*state = rt2x00dev->rfkill->state;
return 0;
}
static void rt2x00rfkill_poll(struct work_struct *work)
{
struct rt2x00_dev *rt2x00dev =
container_of(work, struct rt2x00_dev, rfkill_work.work);
int state;
if (!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
return;
/*
* rfkill_poll reports 1 when the key has been pressed and the
* radio should be blocked.
*/
state = !rt2x00dev->ops->lib->rfkill_poll(rt2x00dev) ?
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
rfkill_force_state(rt2x00dev->rfkill, state);
queue_delayed_work(rt2x00dev->hw->workqueue,
&rt2x00dev->rfkill_work, RFKILL_POLL_INTERVAL);
}
void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
@@ -83,12 +102,6 @@ void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
return;
}
if (input_register_polled_device(rt2x00dev->poll_dev)) {
ERROR(rt2x00dev, "Failed to register polled device.\n");
rfkill_unregister(rt2x00dev->rfkill);
return;
}
__set_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state);
/*
@@ -96,7 +109,7 @@ void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
* and correctly sends the signal to the rfkill layer about this
* state.
*/
rt2x00rfkill_poll(rt2x00dev->poll_dev);
rt2x00rfkill_poll(&rt2x00dev->rfkill_work.work);
}
void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
@@ -105,38 +118,13 @@ void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
return;
input_unregister_polled_device(rt2x00dev->poll_dev);
cancel_delayed_work_sync(&rt2x00dev->rfkill_work);
rfkill_unregister(rt2x00dev->rfkill);
__clear_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state);
}
static struct input_polled_dev *
rt2x00rfkill_allocate_polldev(struct rt2x00_dev *rt2x00dev)
{
struct input_polled_dev *poll_dev;
poll_dev = input_allocate_polled_device();
if (!poll_dev)
return NULL;
poll_dev->private = rt2x00dev;
poll_dev->poll = rt2x00rfkill_poll;
poll_dev->poll_interval = RFKILL_POLL_INTERVAL;
poll_dev->input->name = rt2x00dev->ops->name;
poll_dev->input->phys = wiphy_name(rt2x00dev->hw->wiphy);
poll_dev->input->id.bustype = BUS_HOST;
poll_dev->input->id.vendor = 0x1814;
poll_dev->input->id.product = rt2x00dev->chip.rt;
poll_dev->input->id.version = rt2x00dev->chip.rev;
poll_dev->input->dev.parent = wiphy_dev(rt2x00dev->hw->wiphy);
poll_dev->input->evbit[0] = BIT(EV_KEY);
set_bit(KEY_WLAN, poll_dev->input->keybit);
return poll_dev;
}
void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
{
if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
@@ -153,14 +141,9 @@ void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
rt2x00dev->rfkill->data = rt2x00dev;
rt2x00dev->rfkill->state = -1;
rt2x00dev->rfkill->toggle_radio = rt2x00rfkill_toggle_radio;
rt2x00dev->rfkill->get_state = rt2x00rfkill_get_state;
rt2x00dev->poll_dev = rt2x00rfkill_allocate_polldev(rt2x00dev);
if (!rt2x00dev->poll_dev) {
ERROR(rt2x00dev, "Failed to allocate polled device.\n");
rfkill_free(rt2x00dev->rfkill);
rt2x00dev->rfkill = NULL;
return;
}
INIT_DELAYED_WORK(&rt2x00dev->rfkill_work, rt2x00rfkill_poll);
return;
}
@@ -171,32 +154,8 @@ void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev)
!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
return;
input_free_polled_device(rt2x00dev->poll_dev);
rt2x00dev->poll_dev = NULL;
cancel_delayed_work_sync(&rt2x00dev->rfkill_work);
rfkill_free(rt2x00dev->rfkill);
rt2x00dev->rfkill = NULL;
}
void rt2x00rfkill_suspend(struct rt2x00_dev *rt2x00dev)
{
if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
return;
input_free_polled_device(rt2x00dev->poll_dev);
rt2x00dev->poll_dev = NULL;
}
void rt2x00rfkill_resume(struct rt2x00_dev *rt2x00dev)
{
if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
return;
rt2x00dev->poll_dev = rt2x00rfkill_allocate_polldev(rt2x00dev);
if (!rt2x00dev->poll_dev) {
ERROR(rt2x00dev, "Failed to allocate polled device.\n");
return;
}
}