From 0c7bbeb9f1373cea9e8efb43221118be2102a01c Mon Sep 17 00:00:00 2001 From: Maxim Mikityanskiy Date: Fri, 6 Jul 2012 16:08:11 +0800 Subject: [PATCH] ideapad: add Lenovo IdeaPad Z570 support (part 3) The patch adds support for Lenovo IdeaPad Z570 laptop. It makes all special keys working, adds possibility to control fan like Windows does, controls Touchpad Disabled LED, toggles touchpad state via keyboard controller and corrects touchpad behavior on resume from suspend. It is new, modified version of patch. Now it does not depend on psmouse and does not need patching of input subsystem. Signed-off-by: Maxim Mikityanskiy This is the part 3 for fan control Signed-off-by: Ike Panhc Signed-off-by: Matthew Garrett --- .../ABI/testing/sysfs-platform-ideapad-laptop | 11 +++++ drivers/platform/x86/ideapad-laptop.c | 43 +++++++++++++++++-- 2 files changed, 51 insertions(+), 3 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop index 814b01354c41..b31e782bd985 100644 --- a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop +++ b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop @@ -5,4 +5,15 @@ Contact: "Ike Panhc " Description: Control the power of camera module. 1 means on, 0 means off. +What: /sys/devices/platform/ideapad/fan_mode +Date: June 2012 +KernelVersion: 3.6 +Contact: "Maxim Mikityanskiy " +Description: + Change fan mode + There are four available modes: + * 0 -> Super Silent Mode + * 1 -> Standard Mode + * 2 -> Dust Cleaning + * 4 -> Efficient Thermal Dissipation Mode diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 7bc1b6c60e56..dae7abe1d711 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -64,8 +64,10 @@ 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, }; @@ -358,14 +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 }; @@ -379,7 +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; -- GitLab