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authorCarlos Corbacho <carlos@strangeworlds.co.uk>2008-08-06 19:13:56 +0100
committerAndi Kleen <ak@linux.intel.com>2008-08-15 02:27:01 +0200
commit5c742b45dd5fbbb6cf74d3378341704f4b23c5e8 (patch)
treeb689248d952f8e9c408895f5cd21cfbb095b1b6f /drivers
parentdab36ad8d50dc9424dfc4926f62aaf9bd52dcf13 (diff)
acer-wmi: Fix wireless and bluetooth on early AMW0 v2 laptops
In the old acer_acpi, I discovered that on some of the newer AMW0 laptops that supported the WMID methods, they don't work properly for setting the wireless and bluetooth values. So for the AMW0 V2 laptops, we want to use both the 'old' AMW0 and the 'new' WMID methods for setting wireless & bluetooth to guarantee we always enable it. This was fixed in acer_acpi some time ago, but I forgot to port the patch over to acer-wmi when it was merged. (Without this patch, early AMW0 V2 laptops such as the Aspire 5040 won't work with acer-wmi, where-as they did with the old acer_acpi). AK: fix compilation Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk> CC: stable@kernel.org Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/misc/acer-wmi.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c
index e7a3fe508df..b2d9878dc3f 100644
--- a/drivers/misc/acer-wmi.c
+++ b/drivers/misc/acer-wmi.c
@@ -803,11 +803,30 @@ static acpi_status get_u32(u32 *value, u32 cap)
static acpi_status set_u32(u32 value, u32 cap)
{
+ acpi_status status;
+
if (interface->capability & cap) {
switch (interface->type) {
case ACER_AMW0:
return AMW0_set_u32(value, cap, interface);
case ACER_AMW0_V2:
+ if (cap == ACER_CAP_MAILLED)
+ return AMW0_set_u32(value, cap, interface);
+
+ /*
+ * On some models, some WMID methods don't toggle
+ * properly. For those cases, we want to run the AMW0
+ * method afterwards to be certain we've really toggled
+ * the device state.
+ */
+ if (cap == ACER_CAP_WIRELESS ||
+ cap == ACER_CAP_BLUETOOTH) {
+ status = WMID_set_u32(value, cap, interface);
+ if (ACPI_FAILURE(status))
+ return status;
+
+ return AMW0_set_u32(value, cap, interface);
+ }
case ACER_WMID:
return WMID_set_u32(value, cap, interface);
default: