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Commit 3f6e2f13 authored by Matthew Garrett's avatar Matthew Garrett Committed by Linus Torvalds
Browse files

hp-wmi: update to match current rfkill semantics 



hp-wmi currently changes the RFKill state by altering the struct members
rather than using the dedicated interface, meaning that update events
won't be pushed to userspace.  This patch fixes that, along with fixing
the declared type of the WWAN kill switch.  It also ensures that rfkill
interfaces are only registered for hardware that exists.

Signed-off-by: default avatarMatthew Garrett <mjg@redhat.com>
Acked-by: default avatarHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Ivo van Doorn <ivdoorn@gmail.com>
Cc: Dave Young <hidave.darkstar@gmail.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 61e55d05

drivers/misc/hp-wmi.c

+46 −35
Original line number Diff line number Diff line
@@ -177,9 +177,9 @@ static int hp_wmi_wifi_state(void) 
	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);



	if (wireless & 0x100)

		return 1;

		return RFKILL_STATE_UNBLOCKED;

	else

		return 0;

		return RFKILL_STATE_SOFT_BLOCKED;

}



static int hp_wmi_bluetooth_state(void)
@@ -187,9 +187,9 @@ static int hp_wmi_bluetooth_state(void) 
	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);



	if (wireless & 0x10000)

		return 1;

		return RFKILL_STATE_UNBLOCKED;

	else

		return 0;

		return RFKILL_STATE_SOFT_BLOCKED;

}



static int hp_wmi_wwan_state(void)
@@ -197,9 +197,9 @@ static int hp_wmi_wwan_state(void) 
	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);



	if (wireless & 0x1000000)

		return 1;

		return RFKILL_STATE_UNBLOCKED;

	else

		return 0;

		return RFKILL_STATE_SOFT_BLOCKED;

}



static ssize_t show_display(struct device *dev, struct device_attribute *attr,
@@ -338,12 +338,14 @@ void hp_wmi_notify(u32 value, void *context) 
			}

		} else if (eventcode == 0x5) {

			if (wifi_rfkill)

				wifi_rfkill->state = hp_wmi_wifi_state();

				rfkill_force_state(wifi_rfkill,

						   hp_wmi_wifi_state());

			if (bluetooth_rfkill)

				bluetooth_rfkill->state =

				    hp_wmi_bluetooth_state();

				rfkill_force_state(bluetooth_rfkill,

						   hp_wmi_bluetooth_state());

			if (wwan_rfkill)

				wwan_rfkill->state = hp_wmi_wwan_state();

				rfkill_force_state(wwan_rfkill,

						   hp_wmi_wwan_state());

		} else

			printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n",

			       eventcode);
@@ -398,6 +400,7 @@ static void cleanup_sysfs(struct platform_device *device) 
static int __init hp_wmi_bios_setup(struct platform_device *device)

{

	int err;

	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);



	err = device_create_file(&device->dev, &dev_attr_display);

	if (err)
@@ -412,28 +415,33 @@ static int __init hp_wmi_bios_setup(struct platform_device *device) 
	if (err)

		goto add_sysfs_error;



	if (wireless & 0x1) {

		wifi_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WLAN);

		wifi_rfkill->name = "hp-wifi";

		wifi_rfkill->state = hp_wmi_wifi_state();

		wifi_rfkill->toggle_radio = hp_wmi_wifi_set;

		wifi_rfkill->user_claim_unsupported = 1;

		rfkill_register(wifi_rfkill);

	}



	if (wireless & 0x2) {

		bluetooth_rfkill = rfkill_allocate(&device->dev,

						   RFKILL_TYPE_BLUETOOTH);

		bluetooth_rfkill->name = "hp-bluetooth";

		bluetooth_rfkill->state = hp_wmi_bluetooth_state();

		bluetooth_rfkill->toggle_radio = hp_wmi_bluetooth_set;

		bluetooth_rfkill->user_claim_unsupported = 1;

		rfkill_register(bluetooth_rfkill);

	}



	wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WIMAX);

	if (wireless & 0x4) {

		wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WWAN);

		wwan_rfkill->name = "hp-wwan";

		wwan_rfkill->state = hp_wmi_wwan_state();

		wwan_rfkill->toggle_radio = hp_wmi_wwan_set;

		wwan_rfkill->user_claim_unsupported = 1;



	rfkill_register(wifi_rfkill);

	rfkill_register(bluetooth_rfkill);

		rfkill_register(wwan_rfkill);

	}



	return 0;

add_sysfs_error:
@@ -445,8 +453,11 @@ static int __exit hp_wmi_bios_remove(struct platform_device *device) 
{

	cleanup_sysfs(device);



	if (wifi_rfkill)

		rfkill_unregister(wifi_rfkill);

	if (bluetooth_rfkill)

		rfkill_unregister(bluetooth_rfkill);

	if (wwan_rfkill)

		rfkill_unregister(wwan_rfkill);



	return 0;