1 files changed, 107 insertions, 3 deletions

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 17f6dfd8dbfb..dae7abe1d711 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -36,6 +36,7 @@
 #include <linux/fb.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
+#include <linux/i8042.h>
 
 #define IDEAPAD_RFKILL_DEV_NUM  (3)
 
@@ -63,8 +64,11 @@ enum {
         VPCCMD_R_3G,
         VPCCMD_W_3G,
         VPCCMD_R_ODD, /* 0x21 */
-        VPCCMD_R_RF = 0x23,
+        VPCCMD_W_FAN,
+        VPCCMD_R_RF,
         VPCCMD_W_RF,
+        VPCCMD_R_FAN = 0x2B,
+        VPCCMD_R_SPECIAL_BUTTONS = 0x31,
         VPCCMD_W_BL_POWER = 0x33,
 };
 
@@ -356,14 +360,46 @@ static ssize_t store_ideapad_cam(struct device *dev,
                 return -EINVAL;
         ret = write_ec_cmd(ideapad_handle, VPCCMD_W_CAMERA, state);
         if (ret < 0)
-                return ret;
+                return -EIO;
         return count;
 }
 
 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;
+        if (state < 0 || state > 4 || state == 3)
+                return -EINVAL;
+        ret = write_ec_cmd(ideapad_handle, VPCCMD_W_FAN, state);
+        if (ret < 0)
+                return -EIO;
+        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
 };
 
@@ -377,7 +413,10 @@ static umode_t ideapad_is_visible(struct kobject *kobj,
 
         if (attr == &dev_attr_camera_power.attr)
                 supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
-        else
+        else if (attr == &dev_attr_fan_mode.attr) {
+                unsigned long value;
+                supported = !read_ec_data(ideapad_handle, VPCCMD_R_FAN, &value);
+        } else
                 supported = true;
 
         return supported ? attr->mode : 0;
@@ -518,9 +557,15 @@ static void ideapad_platform_exit(struct ideapad_private *priv)
  */
 static const struct key_entry ideapad_keymap[] = {
         { KE_KEY, 6,  { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 7,  { KEY_CAMERA } },
+        { KE_KEY, 11, { KEY_F16 } },
         { 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 },
 };
 
@@ -587,6 +632,28 @@ static void ideapad_input_novokey(struct ideapad_private *priv)
                 ideapad_input_report(priv, 16);
 }
 
+static void ideapad_check_special_buttons(struct ideapad_private *priv)
+{
+        unsigned long bit, value;
+
+        read_ec_data(ideapad_handle, VPCCMD_R_SPECIAL_BUTTONS, &value);
+
+        for (bit = 0; bit < 16; bit++) {
+                if (test_bit(bit, &value)) {
+                        switch (bit) {
+                        case 6:
+                                /* Thermal Management button */
+                                ideapad_input_report(priv, 65);
+                                break;
+                        case 1:
+                                /* OneKey Theater button */
+                                ideapad_input_report(priv, 64);
+                                break;
+                        }
+                }
+        }
+}
+
 /*
  * backlight
  */
@@ -691,6 +758,24 @@ static const struct acpi_device_id ideapad_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
 
+static void ideapad_sync_touchpad_state(struct acpi_device *adevice)
+{
+        struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+        unsigned long value;
+
+        /* Without reading from EC touchpad LED doesn't switch state */
+        if (!read_ec_data(adevice->handle, VPCCMD_R_TOUCHPAD, &value)) {
+                /* Some IdeaPads don't really turn off touchpad - they only
+                 * switch the LED state. We (de)activate KBC AUX port to turn
+                 * touchpad off and on. We send KEY_TOUCHPAD_OFF and
+                 * KEY_TOUCHPAD_ON to not to get out of sync with LED */
+                unsigned char param;
+                i8042_command(&param, value ? I8042_CMD_AUX_ENABLE :
+                              I8042_CMD_AUX_DISABLE);
+                ideapad_input_report(priv, value ? 67 : 66);
+        }
+}
+
 static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
 {
         int ret, i;
@@ -727,6 +812,7 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
                         priv->rfk[i] = NULL;
         }
         ideapad_sync_rfk_state(priv);
+        ideapad_sync_touchpad_state(adevice);
 
         if (!acpi_video_backlight_support()) {
                 ret = ideapad_backlight_init(priv);
@@ -785,9 +871,14 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
                                 ideapad_sync_rfk_state(priv);
                                 break;
                         case 13:
+                        case 11:
+                        case 7:
                         case 6:
                                 ideapad_input_report(priv, vpc_bit);
                                 break;
+                        case 5:
+                                ideapad_sync_touchpad_state(adevice);
+                                break;
                         case 4:
                                 ideapad_backlight_notify_brightness(priv);
                                 break;
@@ -797,6 +888,9 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
                         case 2:
                                 ideapad_backlight_notify_power(priv);
                                 break;
+                        case 0:
+                                ideapad_check_special_buttons(priv);
+                                break;
                         default:
                                 pr_info("Unknown event: %lu\n", vpc_bit);
                         }
@@ -804,6 +898,15 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
         }
 }
 
+static int ideapad_acpi_resume(struct device *device)
+{
+        ideapad_sync_rfk_state(ideapad_priv);
+        ideapad_sync_touchpad_state(to_acpi_device(device));
+        return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume);
+
 static struct acpi_driver ideapad_acpi_driver = {
         .name = "ideapad_acpi",
         .class = "IdeaPad",
@@ -811,6 +914,7 @@ static struct acpi_driver ideapad_acpi_driver = {
         .ops.add = ideapad_acpi_add,
         .ops.remove = ideapad_acpi_remove,
         .ops.notify = ideapad_acpi_notify,
+        .drv.pm = &ideapad_pm,
         .owner = THIS_MODULE,
 };