ideapad: rewrite the sw rfkill set

Control power of rf modules by ec commands

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 12 insertions, 25 deletions

diff --git a/drivers/platform/x86/ideapad_acpi.c b/drivers/platform/x86/ideapad_acpi.c
index 09f6ce6b378..e9f7395efc3 100644
--- a/drivers/platform/x86/ideapad_acpi.c
+++ b/drivers/platform/x86/ideapad_acpi.c
@@ -37,18 +37,19 @@
 struct ideapad_private {
         acpi_handle handle;
         struct rfkill *rfk[5];
-};
+} *ideapad_priv;
 
 static struct {
         char *name;
         int cfgbit;
+        int opcode;
         int type;
 } ideapad_rfk_data[] = {
-        { "ideapad_camera",     19, NUM_RFKILL_TYPES },
-        { "ideapad_wlan",       18, RFKILL_TYPE_WLAN },
-        { "ideapad_bluetooth",  16, RFKILL_TYPE_BLUETOOTH },
-        { "ideapad_3g",         17, RFKILL_TYPE_WWAN },
-        { "ideapad_killsw",     0, RFKILL_TYPE_WLAN }
+        { "ideapad_camera",     19, 0x1E, NUM_RFKILL_TYPES },
+        { "ideapad_wlan",       18, 0x15, RFKILL_TYPE_WLAN },
+        { "ideapad_bluetooth",  16, 0x17, RFKILL_TYPE_BLUETOOTH },
+        { "ideapad_3g",         17, 0x20, RFKILL_TYPE_WWAN },
+        { "ideapad_killsw",     0,  0,    RFKILL_TYPE_WLAN }
 };
 
 /*
@@ -160,24 +161,6 @@ static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
 }
 /* the above is ACPI helpers */
 
-static int ideapad_dev_set_state(int device, int state)
-{
-        acpi_status status;
-        union acpi_object in_params[2];
-        struct acpi_object_list input = { 2, in_params };
-
-        in_params[0].type = ACPI_TYPE_INTEGER;
-        in_params[0].integer.value = device + 1;
-        in_params[1].type = ACPI_TYPE_INTEGER;
-        in_params[1].integer.value = state;
-
-        status = acpi_evaluate_object(NULL, "\\_SB_.SECN", &input, NULL);
-        if (ACPI_FAILURE(status)) {
-                printk(KERN_WARNING "IdeaPAD \\_SB_.SECN method failed %d\n", status);
-                return -ENODEV;
-        }
-        return 0;
-}
 static ssize_t show_ideapad_cam(struct device *dev,
                                 struct device_attribute *attr,
                                 char *buf)
@@ -217,7 +200,10 @@ static int ideapad_rfk_set(void *data, bool blocked)
 
         if (device == IDEAPAD_DEV_KILLSW)
                 return -EINVAL;
-        return ideapad_dev_set_state(device, !blocked);
+
+        return write_ec_cmd(ideapad_priv->handle,
+                            ideapad_rfk_data[device].opcode,
+                            !blocked);
 }
 
 static struct rfkill_ops ideapad_rfk_ops = {
@@ -318,6 +304,7 @@ static int ideapad_acpi_add(struct acpi_device *adevice)
 
         priv->handle = adevice->handle;
         dev_set_drvdata(&adevice->dev, priv);
+        ideapad_priv = priv;
         for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++) {
                 if (!devs_present[i])
                         continue;