From 3f6e2f137c5b83c3c2d48fae971e845c3450cc7c Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 2 Sep 2008 14:36:00 -0700 Subject: 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: Matthew Garrett Acked-by: Henrique de Moraes Holschuh Cc: Ivo van Doorn Cc: Dave Young Cc: Marcel Holtmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/hp-wmi.c | 81 +++++++++++++++++++++++++++++---------------------- 1 file changed, 46 insertions(+), 35 deletions(-) (limited to 'drivers/misc') diff --git a/drivers/misc/hp-wmi.c b/drivers/misc/hp-wmi.c index 1dbcbcb323a..c6c6d09b376 100644 --- a/drivers/misc/hp-wmi.c +++ b/drivers/misc/hp-wmi.c @@ -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; - 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; - - 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; - - wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WIMAX); - 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); + 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); + } + + 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(wwan_rfkill); + } return 0; add_sysfs_error: @@ -445,9 +453,12 @@ static int __exit hp_wmi_bios_remove(struct platform_device *device) { cleanup_sysfs(device); - rfkill_unregister(wifi_rfkill); - rfkill_unregister(bluetooth_rfkill); - rfkill_unregister(wwan_rfkill); + if (wifi_rfkill) + rfkill_unregister(wifi_rfkill); + if (bluetooth_rfkill) + rfkill_unregister(bluetooth_rfkill); + if (wwan_rfkill) + rfkill_unregister(wwan_rfkill); return 0; } -- cgit v1.2.3