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Subject[PATCH 2/2] ideapad-laptop: Handle the App-controlled RF event
Date
Notification with VPC2 bit 5 set is generated when the wireless
hotkey is pressed. BIOS fires this to notify a Windows
application to handle the RF switch.

On Linux, there is no such application. This patch implements
a toggle for all RF devices through accessing the EC I/O ports.

Without the explicit EC commands, the wifi LED is always on.

Signed-off-by: Keng-Yu Lin <kengyu@canonical.com>
---
drivers/platform/x86/ideapad-laptop.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 820f013..5e1e971 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -461,7 +461,11 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
if (test_bit(vpc_bit, &vpc1)) {
if (vpc_bit == 9)
ideapad_sync_rfk_state(adevice);
- else if (vpc_bit == 4)
+ else if (vpc_bit == 13) {
+ read_ec_data(handle, 0x23, &vpc2);
+ write_ec_cmd(handle, 0x24, !vpc2);
+ ideapad_sync_rfk_state(adevice);
+ } else if (vpc_bit == 4)
read_ec_data(handle, 0x12, &vpc2);
else if (vpc_bit == 1) {
} else
--
1.7.4.1


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