Hi Joey,
acer-wmi is indiscriminately using the device state from hotkey events
to update the various rfkill states. On the Aspire 1830 this can result
in a soft block on the wlan when the touchpad hotkey is pressed, as it
is reporting a non-zero device state that does not reflect the wireless
status.
I beleive the following (untested) patch is a roughly correct fix for
this issue. It changes acer-wmi to only update the rfkill states when
the appropriate hotkeys are pressed, but I'm a little unsure about the
way I've split out the rfkill updates acording to the hotkeys. I don't
see any support in the driver for a 3G hotkey, so I've grouped it with
the wlan key, and I have split out bluetooth to be handled separately
from these. Does this patch look correct?
Thanks,
Seth
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 005417b..592328d 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -1445,6 +1445,8 @@ static void acer_wmi_notify(u32 value, void *context)
union acpi_object *obj;
struct event_return_value return_value;
acpi_status status;
+ u16 device_state;
+ const struct key_entry *key;
status = wmi_get_event_data(value, &response);
if (status != AE_OK) {
@@ -1472,23 +1474,33 @@ static void acer_wmi_notify(u32 value, void *context)
switch (return_value.function) {
case WMID_HOTKEY_EVENT:
- if (return_value.device_state) {
- u16 device_state = return_value.device_state;
- pr_debug("device state: 0x%x\n", device_state);
- if (has_cap(ACER_CAP_WIRELESS))
- rfkill_set_sw_state(wireless_rfkill,
- !(device_state & ACER_WMID3_GDS_WIRELESS));
- if (has_cap(ACER_CAP_BLUETOOTH))
- rfkill_set_sw_state(bluetooth_rfkill,
- !(device_state & ACER_WMID3_GDS_BLUETOOTH));
- if (has_cap(ACER_CAP_THREEG))
- rfkill_set_sw_state(threeg_rfkill,
- !(device_state & ACER_WMID3_GDS_THREEG));
- }
- if (!sparse_keymap_report_event(acer_wmi_input_dev,
- return_value.key_num, 1, true))
+ device_state = return_value.device_state;
+ pr_debug("device state: 0x%x\n", device_state);
+
+ key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
+ return_value.key_num);
+ if (!key) {
pr_warn("Unknown key number - 0x%x\n",
return_value.key_num);
+ } else {
+ switch (key->keycode) {
+ case KEY_WLAN:
+ if (has_cap(ACER_CAP_WIRELESS))
+ rfkill_set_sw_state(wireless_rfkill,
+ !(device_state & ACER_WMID3_GDS_WIRELESS));
+ if (has_cap(ACER_CAP_THREEG))
+ rfkill_set_sw_state(threeg_rfkill,
+ !(device_state & ACER_WMID3_GDS_THREEG));
+ break;
+ case KEY_BLUETOOTH:
+ if (has_cap(ACER_CAP_BLUETOOTH))
+ rfkill_set_sw_state(bluetooth_rfkill,
+ !(device_state & ACER_WMID3_GDS_BLUETOOTH));
+ break;
+ }
+ sparse_keymap_report_entry(acer_wmi_input_dev, key,
+ 1, true);
+ }
break;
default:
pr_warn("Unknown function number - %d - %d\n",
--
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