From: Maxim Mikityanskiy <[email protected]>
The patch adds support for Lenovo IdeaPad Z570 laptop. It makes all special
keys working, adds possibility to control fan like Windows does and controls
Touchpad Disabled LED.
Signed-off-by: Maxim Mikityanskiy <[email protected]>
---
--- linux-source-3.2.0/drivers/platform/x86/ideapad-laptop.c.orig
2012-01-05
01:55:44.000000000 +0200
+++ linux-source-3.2.0/drivers/platform/x86/ideapad-laptop.c 2012-05-20
14:59:45.192052303 +0300
@@ -62,9 +62,12 @@ enum {
VPCCMD_W_CAMERA,
VPCCMD_R_3G,
VPCCMD_W_3G,
- VPCCMD_R_ODD, /* 0x21 */
- VPCCMD_R_RF = 0x23,
- VPCCMD_W_RF,
+ VPCCMD_R_ODD,
+ VPCCMD_W_FAN,
+ VPCCMD_R_RF,
+ VPCCMD_W_RF, /* 0x24 */
+ VPCCMD_R_FAN = 0x2B,
+ VPCCMD_R_SPECIAL_BUTTONS = 0x31,
VPCCMD_W_BL_POWER = 0x33,
};
@@ -363,8 +366,47 @@ static ssize_t store_ideapad_cam(struct
static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam);
+static ssize_t show_ideapad_fan(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long result;
+
+ if (read_ec_data(ideapad_handle, VPCCMD_R_FAN, &result))
+ return sprintf(buf, "-1\n");
+ return sprintf(buf, "%lu\n", result);
+}
+
+static ssize_t store_ideapad_fan(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int ret, state;
+
+ if (!count)
+ return 0;
+ if (sscanf(buf, "%i", &state) != 1)
+ return -EINVAL;
+ /* WARNING: these fan states are not speed
+ * so it isn't cooling_device interface
+ * 0 = super silent mode
+ * 1 = standard mode
+ * 2 = dust cleaning
+ * 4 = efficient thermal dissipation mode
+ */
+ if (state < 0 || state > 4 || state == 3)
+ return -EINVAL;
+ ret = write_ec_cmd(ideapad_handle, VPCCMD_W_FAN, state);
+ if (ret < 0)
+ return ret;
+ return count;
+}
+
+static DEVICE_ATTR(fan_mode, 0644, show_ideapad_fan, store_ideapad_fan);
+
static struct attribute *ideapad_attributes[] = {
&dev_attr_camera_power.attr,
+ &dev_attr_fan_mode.attr,
NULL
};
@@ -379,6 +421,12 @@ static mode_t ideapad_is_visible(struct
if (attr == &dev_attr_camera_power.attr)
supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
else
+ if (attr == &dev_attr_fan_mode.attr)
+ /* I don't know a way to determine is there fan control
+ * on the device or not. For now suppose it is always
+ */
+ supported = true;
+ else
supported = true;
return supported ? attr->mode : 0;
@@ -519,9 +567,15 @@ static void ideapad_platform_exit(struct
*/
static const struct key_entry ideapad_keymap[] = {
{ KE_KEY, 6, { KEY_SWITCHVIDEOMODE } },
+ { KE_KEY, 7, { KEY_CAMERA } },
+ { KE_KEY, 11, { KEY_SWITCHVIDEOMODE } },
{ KE_KEY, 13, { KEY_WLAN } },
{ KE_KEY, 16, { KEY_PROG1 } },
{ KE_KEY, 17, { KEY_PROG2 } },
+ { KE_KEY, 64, { KEY_PROG3 } },
+ { KE_KEY, 65, { KEY_PROG4 } },
+ { KE_KEY, 66, { KEY_TOUCHPAD_OFF } },
+ { KE_KEY, 67, { KEY_TOUCHPAD_ON } },
{ KE_END, 0 },
};
@@ -767,6 +821,25 @@ static int __devexit ideapad_acpi_remove
return 0;
}
+static void ideapad_check_special_buttons(struct ideapad_private
*priv, unsigned long state)
+{
+ unsigned long bit;
+ for (bit = 0; bit < 16; bit++) {
+ if (test_bit(bit, &state)) {
+ switch (bit) {
+ case 6:
+ /* Thermal Management button */
+ ideapad_input_report(priv, 65);
+ break;
+ case 1:
+ /* OneKey Theater button */
+ ideapad_input_report(priv, 64);
+ break;
+ }
+ }
+ }
+}
+
static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
{
struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
@@ -785,6 +858,19 @@ static void ideapad_acpi_notify(struct a
case 9:
ideapad_sync_rfk_state(priv);
break;
+ case 5:
+ {
+ unsigned long value;
+ /* DO NOT DELETE: Without reading from EC
touchpad LED doesn't
switch state */
+ if (!read_ec_data(handle, VPCCMD_R_TOUCHPAD,
&value)) {
+ /* WARNING: IdeaPad doesn't really turn
off touchpad -
+ * it only switches the LED state.
Userspace should
+ * turn touchpad off and on. We send
KEY_TOUCHPAD_OFF and
+ * KEY_TOUCHPAD_ON to not to get out of
sync with LED */
+ ideapad_input_report(priv, value ? 67 :
66);
+ }
+ }
+ break;
case 4:
ideapad_backlight_notify_brightness(priv);
break;
@@ -794,6 +880,13 @@ static void ideapad_acpi_notify(struct a
case 2:
ideapad_backlight_notify_power(priv);
break;
+ case 0:
+ {
+ unsigned long value;
+ read_ec_data(handle, VPCCMD_R_SPECIAL_BUTTONS,
&value);
+ ideapad_check_special_buttons(priv, value);
+ }
+ break;
default:
ideapad_input_report(priv, vpc_bit);
}
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