On 06/20/2012 03:23 AM, Maxim Mikityanskiy wrote:
> 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, controls
> Touchpad Disabled LED, toggles touchpad state via psmouse with previous
> patch and corrects touchpad behavior on resume from suspend. It is new,
> modified version of patch.
>
> Signed-off-by: Maxim Mikityanskiy <[email protected]>
> --- linux/drivers/platform/x86/ideapad-laptop.c.orig
> +++ linux/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/input/psmouse.h>
let IDEAPAD_LAPTOP depends on MOUSE_PS2 in Kconfig. Other build will fail
without MOUSE_PS2 selected. Of course I know the chance is rare.
>
> #define IDEAPAD_RFKILL_DEV_NUM (3)
>
> @@ -62,9 +63,12 @@ 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 +367,47 @@ 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
> + */
I think the file in Documentation is doing good, no need to comment here.
> + 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 -EIO is better, write_ec_cmd only return -1.
> + 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 +422,10 @@ static umode_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) {
> + unsigned long value;
> + supported = !read_ec_data(ideapad_handle, VPCCMD_R_FAN, &value);
I will test this with my ideapads.
> + } else
> supported = true;
>
> return supported ? attr->mode : 0;
> @@ -519,9 +566,15 @@ 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_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 },
> };
>
> @@ -692,6 +745,25 @@ static const struct acpi_device_id ideap
> };
> 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 psmouse to turn
> + * touchpad off and on. We send KEY_TOUCHPAD_OFF and
> + * KEY_TOUCHPAD_ON to not to get out of sync with LED */
> + if (value)
> + psmouse_enable();
> + else
> + psmouse_disable();
> + ideapad_input_report(priv, value ? 67 : 66);
> + }
> +}
> +
> static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
> {
> int ret, i;
> @@ -728,6 +800,7 @@ static int __devinit ideapad_acpi_add(st
> priv->rfk[i] = NULL;
> }
> ideapad_sync_rfk_state(priv);
> + ideapad_sync_touchpad_state(adevice);
>
> if (!acpi_video_backlight_support()) {
> ret = ideapad_backlight_init(priv);
> @@ -767,6 +840,26 @@ 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 +878,9 @@ static void ideapad_acpi_notify(struct a
> case 9:
> ideapad_sync_rfk_state(priv);
> break;
> + case 5:
> + ideapad_sync_touchpad_state(adevice);
> + break;
> case 4:
> ideapad_backlight_notify_brightness(priv);
> break;
> @@ -794,6 +890,14 @@ 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);
> }
> @@ -801,6 +905,12 @@ static void ideapad_acpi_notify(struct a
> }
> }
>
> +static int ideapad_acpi_resume(struct acpi_device *adevice)
> +{
> + ideapad_sync_touchpad_state(adevice);
Good idea, I will see if we need ideapad_sync_rfk_state() also.
> + return 0;
> +}
> +
> static struct acpi_driver ideapad_acpi_driver = {
> .name = "ideapad_acpi",
> .class = "IdeaPad",
> @@ -808,6 +918,7 @@ static struct acpi_driver ideapad_acpi_d
> .ops.add = ideapad_acpi_add,
> .ops.remove = ideapad_acpi_remove,
> .ops.notify = ideapad_acpi_notify,
> + .ops.resume = ideapad_acpi_resume,
> .owner = THIS_MODULE,
> };
>
> --- linux/Documentation/ABI/testing/sysfs-platform-ideapad-laptop.orig
> +++ linux/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
> @@ -5,4 +5,14 @@ Contact: "Ike Panhc <[email protected]
> Description:
> Control the power of camera module. 1 means on, 0 means off.
>
> -
> +What: /sys/devices/platform/ideapad/fan_mode
> +Date: June 2012
> +KernelVersion: 3.5
Shall be 3.6
> +Contact: "Maxim Mikityanskiy <[email protected]>"
> +Description:
> + Change fan mode
> + There are four available modes:
> + * 0 -> Super Silent Mode
> + * 1 -> Standard Mode
> + * 2 -> Dust Cleaning
> + * 4 -> Efficient Thermal Dissipation Mode
>
>
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