1759 lines
42 KiB
C
1759 lines
42 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* ideapad-laptop.c - Lenovo IdeaPad ACPI Extras
|
|
*
|
|
* Copyright © 2010 Intel Corporation
|
|
* Copyright © 2010 David Woodhouse <dwmw2@infradead.org>
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/acpi.h>
|
|
#include <linux/backlight.h>
|
|
#include <linux/bitops.h>
|
|
#include <linux/bug.h>
|
|
#include <linux/debugfs.h>
|
|
#include <linux/device.h>
|
|
#include <linux/dmi.h>
|
|
#include <linux/fb.h>
|
|
#include <linux/i8042.h>
|
|
#include <linux/init.h>
|
|
#include <linux/input.h>
|
|
#include <linux/input/sparse-keymap.h>
|
|
#include <linux/jiffies.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/leds.h>
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/platform_profile.h>
|
|
#include <linux/rfkill.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/sysfs.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <acpi/video.h>
|
|
|
|
#include <dt-bindings/leds/common.h>
|
|
|
|
#define IDEAPAD_RFKILL_DEV_NUM 3
|
|
|
|
#if IS_ENABLED(CONFIG_ACPI_WMI)
|
|
static const char *const ideapad_wmi_fnesc_events[] = {
|
|
"26CAB2E5-5CF1-46AE-AAC3-4A12B6BA50E6", /* Yoga 3 */
|
|
"56322276-8493-4CE8-A783-98C991274F5E", /* Yoga 700 */
|
|
"8FC0DE0C-B4E4-43FD-B0F3-8871711C1294", /* Legion 5 */
|
|
};
|
|
#endif
|
|
|
|
enum {
|
|
CFG_CAP_BT_BIT = 16,
|
|
CFG_CAP_3G_BIT = 17,
|
|
CFG_CAP_WIFI_BIT = 18,
|
|
CFG_CAP_CAM_BIT = 19,
|
|
CFG_CAP_TOUCHPAD_BIT = 30,
|
|
};
|
|
|
|
enum {
|
|
GBMD_CONSERVATION_STATE_BIT = 5,
|
|
};
|
|
|
|
enum {
|
|
SBMC_CONSERVATION_ON = 3,
|
|
SBMC_CONSERVATION_OFF = 5,
|
|
};
|
|
|
|
enum {
|
|
HALS_KBD_BL_SUPPORT_BIT = 4,
|
|
HALS_KBD_BL_STATE_BIT = 5,
|
|
HALS_USB_CHARGING_SUPPORT_BIT = 6,
|
|
HALS_USB_CHARGING_STATE_BIT = 7,
|
|
HALS_FNLOCK_SUPPORT_BIT = 9,
|
|
HALS_FNLOCK_STATE_BIT = 10,
|
|
HALS_HOTKEYS_PRIMARY_BIT = 11,
|
|
};
|
|
|
|
enum {
|
|
SALS_KBD_BL_ON = 0x8,
|
|
SALS_KBD_BL_OFF = 0x9,
|
|
SALS_USB_CHARGING_ON = 0xa,
|
|
SALS_USB_CHARGING_OFF = 0xb,
|
|
SALS_FNLOCK_ON = 0xe,
|
|
SALS_FNLOCK_OFF = 0xf,
|
|
};
|
|
|
|
enum {
|
|
VPCCMD_R_VPC1 = 0x10,
|
|
VPCCMD_R_BL_MAX,
|
|
VPCCMD_R_BL,
|
|
VPCCMD_W_BL,
|
|
VPCCMD_R_WIFI,
|
|
VPCCMD_W_WIFI,
|
|
VPCCMD_R_BT,
|
|
VPCCMD_W_BT,
|
|
VPCCMD_R_BL_POWER,
|
|
VPCCMD_R_NOVO,
|
|
VPCCMD_R_VPC2,
|
|
VPCCMD_R_TOUCHPAD,
|
|
VPCCMD_W_TOUCHPAD,
|
|
VPCCMD_R_CAMERA,
|
|
VPCCMD_W_CAMERA,
|
|
VPCCMD_R_3G,
|
|
VPCCMD_W_3G,
|
|
VPCCMD_R_ODD, /* 0x21 */
|
|
VPCCMD_W_FAN,
|
|
VPCCMD_R_RF,
|
|
VPCCMD_W_RF,
|
|
VPCCMD_R_FAN = 0x2B,
|
|
VPCCMD_R_SPECIAL_BUTTONS = 0x31,
|
|
VPCCMD_W_BL_POWER = 0x33,
|
|
};
|
|
|
|
struct ideapad_dytc_priv {
|
|
enum platform_profile_option current_profile;
|
|
struct platform_profile_handler pprof;
|
|
struct mutex mutex; /* protects the DYTC interface */
|
|
struct ideapad_private *priv;
|
|
};
|
|
|
|
struct ideapad_rfk_priv {
|
|
int dev;
|
|
struct ideapad_private *priv;
|
|
};
|
|
|
|
struct ideapad_private {
|
|
struct acpi_device *adev;
|
|
struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM];
|
|
struct ideapad_rfk_priv rfk_priv[IDEAPAD_RFKILL_DEV_NUM];
|
|
struct platform_device *platform_device;
|
|
struct input_dev *inputdev;
|
|
struct backlight_device *blightdev;
|
|
struct ideapad_dytc_priv *dytc;
|
|
struct dentry *debug;
|
|
unsigned long cfg;
|
|
const char *fnesc_guid;
|
|
struct {
|
|
bool conservation_mode : 1;
|
|
bool dytc : 1;
|
|
bool fan_mode : 1;
|
|
bool fn_lock : 1;
|
|
bool hw_rfkill_switch : 1;
|
|
bool kbd_bl : 1;
|
|
bool touchpad_ctrl_via_ec : 1;
|
|
bool usb_charging : 1;
|
|
} features;
|
|
struct {
|
|
bool initialized;
|
|
struct led_classdev led;
|
|
unsigned int last_brightness;
|
|
} kbd_bl;
|
|
};
|
|
|
|
static bool no_bt_rfkill;
|
|
module_param(no_bt_rfkill, bool, 0444);
|
|
MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth.");
|
|
|
|
static bool allow_v4_dytc;
|
|
module_param(allow_v4_dytc, bool, 0444);
|
|
MODULE_PARM_DESC(allow_v4_dytc, "Enable DYTC version 4 platform-profile support.");
|
|
|
|
/*
|
|
* ACPI Helpers
|
|
*/
|
|
#define IDEAPAD_EC_TIMEOUT 200 /* in ms */
|
|
|
|
static int eval_int(acpi_handle handle, const char *name, unsigned long *res)
|
|
{
|
|
unsigned long long result;
|
|
acpi_status status;
|
|
|
|
status = acpi_evaluate_integer(handle, (char *)name, NULL, &result);
|
|
if (ACPI_FAILURE(status))
|
|
return -EIO;
|
|
|
|
*res = result;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int exec_simple_method(acpi_handle handle, const char *name, unsigned long arg)
|
|
{
|
|
acpi_status status = acpi_execute_simple_method(handle, (char *)name, arg);
|
|
|
|
return ACPI_FAILURE(status) ? -EIO : 0;
|
|
}
|
|
|
|
static int eval_gbmd(acpi_handle handle, unsigned long *res)
|
|
{
|
|
return eval_int(handle, "GBMD", res);
|
|
}
|
|
|
|
static int exec_sbmc(acpi_handle handle, unsigned long arg)
|
|
{
|
|
return exec_simple_method(handle, "SBMC", arg);
|
|
}
|
|
|
|
static int eval_hals(acpi_handle handle, unsigned long *res)
|
|
{
|
|
return eval_int(handle, "HALS", res);
|
|
}
|
|
|
|
static int exec_sals(acpi_handle handle, unsigned long arg)
|
|
{
|
|
return exec_simple_method(handle, "SALS", arg);
|
|
}
|
|
|
|
static int eval_int_with_arg(acpi_handle handle, const char *name, unsigned long arg, unsigned long *res)
|
|
{
|
|
struct acpi_object_list params;
|
|
unsigned long long result;
|
|
union acpi_object in_obj;
|
|
acpi_status status;
|
|
|
|
params.count = 1;
|
|
params.pointer = &in_obj;
|
|
in_obj.type = ACPI_TYPE_INTEGER;
|
|
in_obj.integer.value = arg;
|
|
|
|
status = acpi_evaluate_integer(handle, (char *)name, ¶ms, &result);
|
|
if (ACPI_FAILURE(status))
|
|
return -EIO;
|
|
|
|
if (res)
|
|
*res = result;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int eval_dytc(acpi_handle handle, unsigned long cmd, unsigned long *res)
|
|
{
|
|
return eval_int_with_arg(handle, "DYTC", cmd, res);
|
|
}
|
|
|
|
static int eval_vpcr(acpi_handle handle, unsigned long cmd, unsigned long *res)
|
|
{
|
|
return eval_int_with_arg(handle, "VPCR", cmd, res);
|
|
}
|
|
|
|
static int eval_vpcw(acpi_handle handle, unsigned long cmd, unsigned long data)
|
|
{
|
|
struct acpi_object_list params;
|
|
union acpi_object in_obj[2];
|
|
acpi_status status;
|
|
|
|
params.count = 2;
|
|
params.pointer = in_obj;
|
|
in_obj[0].type = ACPI_TYPE_INTEGER;
|
|
in_obj[0].integer.value = cmd;
|
|
in_obj[1].type = ACPI_TYPE_INTEGER;
|
|
in_obj[1].integer.value = data;
|
|
|
|
status = acpi_evaluate_object(handle, "VPCW", ¶ms, NULL);
|
|
if (ACPI_FAILURE(status))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int read_ec_data(acpi_handle handle, unsigned long cmd, unsigned long *data)
|
|
{
|
|
unsigned long end_jiffies, val;
|
|
int err;
|
|
|
|
err = eval_vpcw(handle, 1, cmd);
|
|
if (err)
|
|
return err;
|
|
|
|
end_jiffies = jiffies + msecs_to_jiffies(IDEAPAD_EC_TIMEOUT) + 1;
|
|
|
|
while (time_before(jiffies, end_jiffies)) {
|
|
schedule();
|
|
|
|
err = eval_vpcr(handle, 1, &val);
|
|
if (err)
|
|
return err;
|
|
|
|
if (val == 0)
|
|
return eval_vpcr(handle, 0, data);
|
|
}
|
|
|
|
acpi_handle_err(handle, "timeout in %s\n", __func__);
|
|
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
static int write_ec_cmd(acpi_handle handle, unsigned long cmd, unsigned long data)
|
|
{
|
|
unsigned long end_jiffies, val;
|
|
int err;
|
|
|
|
err = eval_vpcw(handle, 0, data);
|
|
if (err)
|
|
return err;
|
|
|
|
err = eval_vpcw(handle, 1, cmd);
|
|
if (err)
|
|
return err;
|
|
|
|
end_jiffies = jiffies + msecs_to_jiffies(IDEAPAD_EC_TIMEOUT) + 1;
|
|
|
|
while (time_before(jiffies, end_jiffies)) {
|
|
schedule();
|
|
|
|
err = eval_vpcr(handle, 1, &val);
|
|
if (err)
|
|
return err;
|
|
|
|
if (val == 0)
|
|
return 0;
|
|
}
|
|
|
|
acpi_handle_err(handle, "timeout in %s\n", __func__);
|
|
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
/*
|
|
* debugfs
|
|
*/
|
|
static int debugfs_status_show(struct seq_file *s, void *data)
|
|
{
|
|
struct ideapad_private *priv = s->private;
|
|
unsigned long value;
|
|
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &value))
|
|
seq_printf(s, "Backlight max: %lu\n", value);
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL, &value))
|
|
seq_printf(s, "Backlight now: %lu\n", value);
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &value))
|
|
seq_printf(s, "BL power value: %s (%lu)\n", value ? "on" : "off", value);
|
|
|
|
seq_puts(s, "=====================\n");
|
|
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_RF, &value))
|
|
seq_printf(s, "Radio status: %s (%lu)\n", value ? "on" : "off", value);
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_WIFI, &value))
|
|
seq_printf(s, "Wifi status: %s (%lu)\n", value ? "on" : "off", value);
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_BT, &value))
|
|
seq_printf(s, "BT status: %s (%lu)\n", value ? "on" : "off", value);
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_3G, &value))
|
|
seq_printf(s, "3G status: %s (%lu)\n", value ? "on" : "off", value);
|
|
|
|
seq_puts(s, "=====================\n");
|
|
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value))
|
|
seq_printf(s, "Touchpad status: %s (%lu)\n", value ? "on" : "off", value);
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &value))
|
|
seq_printf(s, "Camera status: %s (%lu)\n", value ? "on" : "off", value);
|
|
|
|
seq_puts(s, "=====================\n");
|
|
|
|
if (!eval_gbmd(priv->adev->handle, &value))
|
|
seq_printf(s, "GBMD: %#010lx\n", value);
|
|
if (!eval_hals(priv->adev->handle, &value))
|
|
seq_printf(s, "HALS: %#010lx\n", value);
|
|
|
|
return 0;
|
|
}
|
|
DEFINE_SHOW_ATTRIBUTE(debugfs_status);
|
|
|
|
static int debugfs_cfg_show(struct seq_file *s, void *data)
|
|
{
|
|
struct ideapad_private *priv = s->private;
|
|
|
|
seq_printf(s, "_CFG: %#010lx\n\n", priv->cfg);
|
|
|
|
seq_puts(s, "Capabilities:");
|
|
if (test_bit(CFG_CAP_BT_BIT, &priv->cfg))
|
|
seq_puts(s, " bluetooth");
|
|
if (test_bit(CFG_CAP_3G_BIT, &priv->cfg))
|
|
seq_puts(s, " 3G");
|
|
if (test_bit(CFG_CAP_WIFI_BIT, &priv->cfg))
|
|
seq_puts(s, " wifi");
|
|
if (test_bit(CFG_CAP_CAM_BIT, &priv->cfg))
|
|
seq_puts(s, " camera");
|
|
if (test_bit(CFG_CAP_TOUCHPAD_BIT, &priv->cfg))
|
|
seq_puts(s, " touchpad");
|
|
seq_puts(s, "\n");
|
|
|
|
seq_puts(s, "Graphics: ");
|
|
switch (priv->cfg & 0x700) {
|
|
case 0x100:
|
|
seq_puts(s, "Intel");
|
|
break;
|
|
case 0x200:
|
|
seq_puts(s, "ATI");
|
|
break;
|
|
case 0x300:
|
|
seq_puts(s, "Nvidia");
|
|
break;
|
|
case 0x400:
|
|
seq_puts(s, "Intel and ATI");
|
|
break;
|
|
case 0x500:
|
|
seq_puts(s, "Intel and Nvidia");
|
|
break;
|
|
}
|
|
seq_puts(s, "\n");
|
|
|
|
return 0;
|
|
}
|
|
DEFINE_SHOW_ATTRIBUTE(debugfs_cfg);
|
|
|
|
static void ideapad_debugfs_init(struct ideapad_private *priv)
|
|
{
|
|
struct dentry *dir;
|
|
|
|
dir = debugfs_create_dir("ideapad", NULL);
|
|
priv->debug = dir;
|
|
|
|
debugfs_create_file("cfg", 0444, dir, priv, &debugfs_cfg_fops);
|
|
debugfs_create_file("status", 0444, dir, priv, &debugfs_status_fops);
|
|
}
|
|
|
|
static void ideapad_debugfs_exit(struct ideapad_private *priv)
|
|
{
|
|
debugfs_remove_recursive(priv->debug);
|
|
priv->debug = NULL;
|
|
}
|
|
|
|
/*
|
|
* sysfs
|
|
*/
|
|
static ssize_t camera_power_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
unsigned long result;
|
|
int err;
|
|
|
|
err = read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &result);
|
|
if (err)
|
|
return err;
|
|
|
|
return sysfs_emit(buf, "%d\n", !!result);
|
|
}
|
|
|
|
static ssize_t camera_power_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
bool state;
|
|
int err;
|
|
|
|
err = kstrtobool(buf, &state);
|
|
if (err)
|
|
return err;
|
|
|
|
err = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state);
|
|
if (err)
|
|
return err;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(camera_power);
|
|
|
|
static ssize_t conservation_mode_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
unsigned long result;
|
|
int err;
|
|
|
|
err = eval_gbmd(priv->adev->handle, &result);
|
|
if (err)
|
|
return err;
|
|
|
|
return sysfs_emit(buf, "%d\n", !!test_bit(GBMD_CONSERVATION_STATE_BIT, &result));
|
|
}
|
|
|
|
static ssize_t conservation_mode_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
bool state;
|
|
int err;
|
|
|
|
err = kstrtobool(buf, &state);
|
|
if (err)
|
|
return err;
|
|
|
|
err = exec_sbmc(priv->adev->handle, state ? SBMC_CONSERVATION_ON : SBMC_CONSERVATION_OFF);
|
|
if (err)
|
|
return err;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(conservation_mode);
|
|
|
|
static ssize_t fan_mode_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
unsigned long result;
|
|
int err;
|
|
|
|
err = read_ec_data(priv->adev->handle, VPCCMD_R_FAN, &result);
|
|
if (err)
|
|
return err;
|
|
|
|
return sysfs_emit(buf, "%lu\n", result);
|
|
}
|
|
|
|
static ssize_t fan_mode_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
unsigned int state;
|
|
int err;
|
|
|
|
err = kstrtouint(buf, 0, &state);
|
|
if (err)
|
|
return err;
|
|
|
|
if (state > 4 || state == 3)
|
|
return -EINVAL;
|
|
|
|
err = write_ec_cmd(priv->adev->handle, VPCCMD_W_FAN, state);
|
|
if (err)
|
|
return err;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(fan_mode);
|
|
|
|
static ssize_t fn_lock_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
unsigned long hals;
|
|
int err;
|
|
|
|
err = eval_hals(priv->adev->handle, &hals);
|
|
if (err)
|
|
return err;
|
|
|
|
return sysfs_emit(buf, "%d\n", !!test_bit(HALS_FNLOCK_STATE_BIT, &hals));
|
|
}
|
|
|
|
static ssize_t fn_lock_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
bool state;
|
|
int err;
|
|
|
|
err = kstrtobool(buf, &state);
|
|
if (err)
|
|
return err;
|
|
|
|
err = exec_sals(priv->adev->handle, state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF);
|
|
if (err)
|
|
return err;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(fn_lock);
|
|
|
|
static ssize_t touchpad_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
unsigned long result;
|
|
int err;
|
|
|
|
err = read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &result);
|
|
if (err)
|
|
return err;
|
|
|
|
return sysfs_emit(buf, "%d\n", !!result);
|
|
}
|
|
|
|
static ssize_t touchpad_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
bool state;
|
|
int err;
|
|
|
|
err = kstrtobool(buf, &state);
|
|
if (err)
|
|
return err;
|
|
|
|
err = write_ec_cmd(priv->adev->handle, VPCCMD_W_TOUCHPAD, state);
|
|
if (err)
|
|
return err;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(touchpad);
|
|
|
|
static ssize_t usb_charging_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
unsigned long hals;
|
|
int err;
|
|
|
|
err = eval_hals(priv->adev->handle, &hals);
|
|
if (err)
|
|
return err;
|
|
|
|
return sysfs_emit(buf, "%d\n", !!test_bit(HALS_USB_CHARGING_STATE_BIT, &hals));
|
|
}
|
|
|
|
static ssize_t usb_charging_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
bool state;
|
|
int err;
|
|
|
|
err = kstrtobool(buf, &state);
|
|
if (err)
|
|
return err;
|
|
|
|
err = exec_sals(priv->adev->handle, state ? SALS_USB_CHARGING_ON : SALS_USB_CHARGING_OFF);
|
|
if (err)
|
|
return err;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(usb_charging);
|
|
|
|
static struct attribute *ideapad_attributes[] = {
|
|
&dev_attr_camera_power.attr,
|
|
&dev_attr_conservation_mode.attr,
|
|
&dev_attr_fan_mode.attr,
|
|
&dev_attr_fn_lock.attr,
|
|
&dev_attr_touchpad.attr,
|
|
&dev_attr_usb_charging.attr,
|
|
NULL
|
|
};
|
|
|
|
static umode_t ideapad_is_visible(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
int idx)
|
|
{
|
|
struct device *dev = kobj_to_dev(kobj);
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
bool supported = true;
|
|
|
|
if (attr == &dev_attr_camera_power.attr)
|
|
supported = test_bit(CFG_CAP_CAM_BIT, &priv->cfg);
|
|
else if (attr == &dev_attr_conservation_mode.attr)
|
|
supported = priv->features.conservation_mode;
|
|
else if (attr == &dev_attr_fan_mode.attr)
|
|
supported = priv->features.fan_mode;
|
|
else if (attr == &dev_attr_fn_lock.attr)
|
|
supported = priv->features.fn_lock;
|
|
else if (attr == &dev_attr_touchpad.attr)
|
|
supported = priv->features.touchpad_ctrl_via_ec &&
|
|
test_bit(CFG_CAP_TOUCHPAD_BIT, &priv->cfg);
|
|
else if (attr == &dev_attr_usb_charging.attr)
|
|
supported = priv->features.usb_charging;
|
|
|
|
return supported ? attr->mode : 0;
|
|
}
|
|
|
|
static const struct attribute_group ideapad_attribute_group = {
|
|
.is_visible = ideapad_is_visible,
|
|
.attrs = ideapad_attributes
|
|
};
|
|
|
|
/*
|
|
* DYTC Platform profile
|
|
*/
|
|
#define DYTC_CMD_QUERY 0 /* To get DYTC status - enable/revision */
|
|
#define DYTC_CMD_SET 1 /* To enable/disable IC function mode */
|
|
#define DYTC_CMD_GET 2 /* To get current IC function and mode */
|
|
#define DYTC_CMD_RESET 0x1ff /* To reset back to default */
|
|
|
|
#define DYTC_QUERY_ENABLE_BIT 8 /* Bit 8 - 0 = disabled, 1 = enabled */
|
|
#define DYTC_QUERY_SUBREV_BIT 16 /* Bits 16 - 27 - sub revision */
|
|
#define DYTC_QUERY_REV_BIT 28 /* Bits 28 - 31 - revision */
|
|
|
|
#define DYTC_GET_FUNCTION_BIT 8 /* Bits 8-11 - function setting */
|
|
#define DYTC_GET_MODE_BIT 12 /* Bits 12-15 - mode setting */
|
|
|
|
#define DYTC_SET_FUNCTION_BIT 12 /* Bits 12-15 - function setting */
|
|
#define DYTC_SET_MODE_BIT 16 /* Bits 16-19 - mode setting */
|
|
#define DYTC_SET_VALID_BIT 20 /* Bit 20 - 1 = on, 0 = off */
|
|
|
|
#define DYTC_FUNCTION_STD 0 /* Function = 0, standard mode */
|
|
#define DYTC_FUNCTION_CQL 1 /* Function = 1, lap mode */
|
|
#define DYTC_FUNCTION_MMC 11 /* Function = 11, desk mode */
|
|
|
|
#define DYTC_MODE_PERFORM 2 /* High power mode aka performance */
|
|
#define DYTC_MODE_LOW_POWER 3 /* Low power mode aka quiet */
|
|
#define DYTC_MODE_BALANCE 0xF /* Default mode aka balanced */
|
|
|
|
#define DYTC_SET_COMMAND(function, mode, on) \
|
|
(DYTC_CMD_SET | (function) << DYTC_SET_FUNCTION_BIT | \
|
|
(mode) << DYTC_SET_MODE_BIT | \
|
|
(on) << DYTC_SET_VALID_BIT)
|
|
|
|
#define DYTC_DISABLE_CQL DYTC_SET_COMMAND(DYTC_FUNCTION_CQL, DYTC_MODE_BALANCE, 0)
|
|
|
|
#define DYTC_ENABLE_CQL DYTC_SET_COMMAND(DYTC_FUNCTION_CQL, DYTC_MODE_BALANCE, 1)
|
|
|
|
static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *profile)
|
|
{
|
|
switch (dytcmode) {
|
|
case DYTC_MODE_LOW_POWER:
|
|
*profile = PLATFORM_PROFILE_LOW_POWER;
|
|
break;
|
|
case DYTC_MODE_BALANCE:
|
|
*profile = PLATFORM_PROFILE_BALANCED;
|
|
break;
|
|
case DYTC_MODE_PERFORM:
|
|
*profile = PLATFORM_PROFILE_PERFORMANCE;
|
|
break;
|
|
default: /* Unknown mode */
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int convert_profile_to_dytc(enum platform_profile_option profile, int *perfmode)
|
|
{
|
|
switch (profile) {
|
|
case PLATFORM_PROFILE_LOW_POWER:
|
|
*perfmode = DYTC_MODE_LOW_POWER;
|
|
break;
|
|
case PLATFORM_PROFILE_BALANCED:
|
|
*perfmode = DYTC_MODE_BALANCE;
|
|
break;
|
|
case PLATFORM_PROFILE_PERFORMANCE:
|
|
*perfmode = DYTC_MODE_PERFORM;
|
|
break;
|
|
default: /* Unknown profile */
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* dytc_profile_get: Function to register with platform_profile
|
|
* handler. Returns current platform profile.
|
|
*/
|
|
static int dytc_profile_get(struct platform_profile_handler *pprof,
|
|
enum platform_profile_option *profile)
|
|
{
|
|
struct ideapad_dytc_priv *dytc = container_of(pprof, struct ideapad_dytc_priv, pprof);
|
|
|
|
*profile = dytc->current_profile;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Helper function - check if we are in CQL mode and if we are
|
|
* - disable CQL,
|
|
* - run the command
|
|
* - enable CQL
|
|
* If not in CQL mode, just run the command
|
|
*/
|
|
static int dytc_cql_command(struct ideapad_private *priv, unsigned long cmd,
|
|
unsigned long *output)
|
|
{
|
|
int err, cmd_err, cur_funcmode;
|
|
|
|
/* Determine if we are in CQL mode. This alters the commands we do */
|
|
err = eval_dytc(priv->adev->handle, DYTC_CMD_GET, output);
|
|
if (err)
|
|
return err;
|
|
|
|
cur_funcmode = (*output >> DYTC_GET_FUNCTION_BIT) & 0xF;
|
|
/* Check if we're OK to return immediately */
|
|
if (cmd == DYTC_CMD_GET && cur_funcmode != DYTC_FUNCTION_CQL)
|
|
return 0;
|
|
|
|
if (cur_funcmode == DYTC_FUNCTION_CQL) {
|
|
err = eval_dytc(priv->adev->handle, DYTC_DISABLE_CQL, NULL);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
cmd_err = eval_dytc(priv->adev->handle, cmd, output);
|
|
/* Check return condition after we've restored CQL state */
|
|
|
|
if (cur_funcmode == DYTC_FUNCTION_CQL) {
|
|
err = eval_dytc(priv->adev->handle, DYTC_ENABLE_CQL, NULL);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return cmd_err;
|
|
}
|
|
|
|
/*
|
|
* dytc_profile_set: Function to register with platform_profile
|
|
* handler. Sets current platform profile.
|
|
*/
|
|
static int dytc_profile_set(struct platform_profile_handler *pprof,
|
|
enum platform_profile_option profile)
|
|
{
|
|
struct ideapad_dytc_priv *dytc = container_of(pprof, struct ideapad_dytc_priv, pprof);
|
|
struct ideapad_private *priv = dytc->priv;
|
|
unsigned long output;
|
|
int err;
|
|
|
|
err = mutex_lock_interruptible(&dytc->mutex);
|
|
if (err)
|
|
return err;
|
|
|
|
if (profile == PLATFORM_PROFILE_BALANCED) {
|
|
/* To get back to balanced mode we just issue a reset command */
|
|
err = eval_dytc(priv->adev->handle, DYTC_CMD_RESET, NULL);
|
|
if (err)
|
|
goto unlock;
|
|
} else {
|
|
int perfmode;
|
|
|
|
err = convert_profile_to_dytc(profile, &perfmode);
|
|
if (err)
|
|
goto unlock;
|
|
|
|
/* Determine if we are in CQL mode. This alters the commands we do */
|
|
err = dytc_cql_command(priv, DYTC_SET_COMMAND(DYTC_FUNCTION_MMC, perfmode, 1),
|
|
&output);
|
|
if (err)
|
|
goto unlock;
|
|
}
|
|
|
|
/* Success - update current profile */
|
|
dytc->current_profile = profile;
|
|
|
|
unlock:
|
|
mutex_unlock(&dytc->mutex);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void dytc_profile_refresh(struct ideapad_private *priv)
|
|
{
|
|
enum platform_profile_option profile;
|
|
unsigned long output;
|
|
int err, perfmode;
|
|
|
|
mutex_lock(&priv->dytc->mutex);
|
|
err = dytc_cql_command(priv, DYTC_CMD_GET, &output);
|
|
mutex_unlock(&priv->dytc->mutex);
|
|
if (err)
|
|
return;
|
|
|
|
perfmode = (output >> DYTC_GET_MODE_BIT) & 0xF;
|
|
|
|
if (convert_dytc_to_profile(perfmode, &profile))
|
|
return;
|
|
|
|
if (profile != priv->dytc->current_profile) {
|
|
priv->dytc->current_profile = profile;
|
|
platform_profile_notify();
|
|
}
|
|
}
|
|
|
|
static const struct dmi_system_id ideapad_dytc_v4_allow_table[] = {
|
|
{
|
|
/* Ideapad 5 Pro 16ACH6 */
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "82L5")
|
|
}
|
|
},
|
|
{
|
|
/* Ideapad 5 15ITL05 */
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
|
DMI_MATCH(DMI_PRODUCT_VERSION, "IdeaPad 5 15ITL05")
|
|
}
|
|
},
|
|
{}
|
|
};
|
|
|
|
static int ideapad_dytc_profile_init(struct ideapad_private *priv)
|
|
{
|
|
int err, dytc_version;
|
|
unsigned long output;
|
|
|
|
if (!priv->features.dytc)
|
|
return -ENODEV;
|
|
|
|
err = eval_dytc(priv->adev->handle, DYTC_CMD_QUERY, &output);
|
|
/* For all other errors we can flag the failure */
|
|
if (err)
|
|
return err;
|
|
|
|
/* Check DYTC is enabled and supports mode setting */
|
|
if (!test_bit(DYTC_QUERY_ENABLE_BIT, &output)) {
|
|
dev_info(&priv->platform_device->dev, "DYTC_QUERY_ENABLE_BIT returned false\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
dytc_version = (output >> DYTC_QUERY_REV_BIT) & 0xF;
|
|
|
|
if (dytc_version < 4) {
|
|
dev_info(&priv->platform_device->dev, "DYTC_VERSION < 4 is not supported\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (dytc_version < 5 &&
|
|
!(allow_v4_dytc || dmi_check_system(ideapad_dytc_v4_allow_table))) {
|
|
dev_info(&priv->platform_device->dev,
|
|
"DYTC_VERSION 4 support may not work. Pass ideapad_laptop.allow_v4_dytc=Y on the kernel commandline to enable\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
priv->dytc = kzalloc(sizeof(*priv->dytc), GFP_KERNEL);
|
|
if (!priv->dytc)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&priv->dytc->mutex);
|
|
|
|
priv->dytc->priv = priv;
|
|
priv->dytc->pprof.profile_get = dytc_profile_get;
|
|
priv->dytc->pprof.profile_set = dytc_profile_set;
|
|
|
|
/* Setup supported modes */
|
|
set_bit(PLATFORM_PROFILE_LOW_POWER, priv->dytc->pprof.choices);
|
|
set_bit(PLATFORM_PROFILE_BALANCED, priv->dytc->pprof.choices);
|
|
set_bit(PLATFORM_PROFILE_PERFORMANCE, priv->dytc->pprof.choices);
|
|
|
|
/* Create platform_profile structure and register */
|
|
err = platform_profile_register(&priv->dytc->pprof);
|
|
if (err)
|
|
goto pp_reg_failed;
|
|
|
|
/* Ensure initial values are correct */
|
|
dytc_profile_refresh(priv);
|
|
|
|
return 0;
|
|
|
|
pp_reg_failed:
|
|
mutex_destroy(&priv->dytc->mutex);
|
|
kfree(priv->dytc);
|
|
priv->dytc = NULL;
|
|
|
|
return err;
|
|
}
|
|
|
|
static void ideapad_dytc_profile_exit(struct ideapad_private *priv)
|
|
{
|
|
if (!priv->dytc)
|
|
return;
|
|
|
|
platform_profile_remove();
|
|
mutex_destroy(&priv->dytc->mutex);
|
|
kfree(priv->dytc);
|
|
|
|
priv->dytc = NULL;
|
|
}
|
|
|
|
/*
|
|
* Rfkill
|
|
*/
|
|
struct ideapad_rfk_data {
|
|
char *name;
|
|
int cfgbit;
|
|
int opcode;
|
|
int type;
|
|
};
|
|
|
|
static const struct ideapad_rfk_data ideapad_rfk_data[] = {
|
|
{ "ideapad_wlan", CFG_CAP_WIFI_BIT, VPCCMD_W_WIFI, RFKILL_TYPE_WLAN },
|
|
{ "ideapad_bluetooth", CFG_CAP_BT_BIT, VPCCMD_W_BT, RFKILL_TYPE_BLUETOOTH },
|
|
{ "ideapad_3g", CFG_CAP_3G_BIT, VPCCMD_W_3G, RFKILL_TYPE_WWAN },
|
|
};
|
|
|
|
static int ideapad_rfk_set(void *data, bool blocked)
|
|
{
|
|
struct ideapad_rfk_priv *priv = data;
|
|
int opcode = ideapad_rfk_data[priv->dev].opcode;
|
|
|
|
return write_ec_cmd(priv->priv->adev->handle, opcode, !blocked);
|
|
}
|
|
|
|
static const struct rfkill_ops ideapad_rfk_ops = {
|
|
.set_block = ideapad_rfk_set,
|
|
};
|
|
|
|
static void ideapad_sync_rfk_state(struct ideapad_private *priv)
|
|
{
|
|
unsigned long hw_blocked = 0;
|
|
int i;
|
|
|
|
if (priv->features.hw_rfkill_switch) {
|
|
if (read_ec_data(priv->adev->handle, VPCCMD_R_RF, &hw_blocked))
|
|
return;
|
|
hw_blocked = !hw_blocked;
|
|
}
|
|
|
|
for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
|
|
if (priv->rfk[i])
|
|
rfkill_set_hw_state(priv->rfk[i], hw_blocked);
|
|
}
|
|
|
|
static int ideapad_register_rfkill(struct ideapad_private *priv, int dev)
|
|
{
|
|
unsigned long rf_enabled;
|
|
int err;
|
|
|
|
if (no_bt_rfkill && ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH) {
|
|
/* Force to enable bluetooth when no_bt_rfkill=1 */
|
|
write_ec_cmd(priv->adev->handle, ideapad_rfk_data[dev].opcode, 1);
|
|
return 0;
|
|
}
|
|
|
|
priv->rfk_priv[dev].dev = dev;
|
|
priv->rfk_priv[dev].priv = priv;
|
|
|
|
priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name,
|
|
&priv->platform_device->dev,
|
|
ideapad_rfk_data[dev].type,
|
|
&ideapad_rfk_ops,
|
|
&priv->rfk_priv[dev]);
|
|
if (!priv->rfk[dev])
|
|
return -ENOMEM;
|
|
|
|
err = read_ec_data(priv->adev->handle, ideapad_rfk_data[dev].opcode - 1, &rf_enabled);
|
|
if (err)
|
|
rf_enabled = 1;
|
|
|
|
rfkill_init_sw_state(priv->rfk[dev], !rf_enabled);
|
|
|
|
err = rfkill_register(priv->rfk[dev]);
|
|
if (err)
|
|
rfkill_destroy(priv->rfk[dev]);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void ideapad_unregister_rfkill(struct ideapad_private *priv, int dev)
|
|
{
|
|
if (!priv->rfk[dev])
|
|
return;
|
|
|
|
rfkill_unregister(priv->rfk[dev]);
|
|
rfkill_destroy(priv->rfk[dev]);
|
|
}
|
|
|
|
/*
|
|
* Platform device
|
|
*/
|
|
static int ideapad_sysfs_init(struct ideapad_private *priv)
|
|
{
|
|
return device_add_group(&priv->platform_device->dev,
|
|
&ideapad_attribute_group);
|
|
}
|
|
|
|
static void ideapad_sysfs_exit(struct ideapad_private *priv)
|
|
{
|
|
device_remove_group(&priv->platform_device->dev,
|
|
&ideapad_attribute_group);
|
|
}
|
|
|
|
/*
|
|
* input device
|
|
*/
|
|
static const struct key_entry ideapad_keymap[] = {
|
|
{ KE_KEY, 6, { KEY_SWITCHVIDEOMODE } },
|
|
{ KE_KEY, 7, { KEY_CAMERA } },
|
|
{ KE_KEY, 8, { KEY_MICMUTE } },
|
|
{ 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_KEY, 128, { KEY_ESC } },
|
|
{ KE_END },
|
|
};
|
|
|
|
static int ideapad_input_init(struct ideapad_private *priv)
|
|
{
|
|
struct input_dev *inputdev;
|
|
int err;
|
|
|
|
inputdev = input_allocate_device();
|
|
if (!inputdev)
|
|
return -ENOMEM;
|
|
|
|
inputdev->name = "Ideapad extra buttons";
|
|
inputdev->phys = "ideapad/input0";
|
|
inputdev->id.bustype = BUS_HOST;
|
|
inputdev->dev.parent = &priv->platform_device->dev;
|
|
|
|
err = sparse_keymap_setup(inputdev, ideapad_keymap, NULL);
|
|
if (err) {
|
|
dev_err(&priv->platform_device->dev,
|
|
"Could not set up input device keymap: %d\n", err);
|
|
goto err_free_dev;
|
|
}
|
|
|
|
err = input_register_device(inputdev);
|
|
if (err) {
|
|
dev_err(&priv->platform_device->dev,
|
|
"Could not register input device: %d\n", err);
|
|
goto err_free_dev;
|
|
}
|
|
|
|
priv->inputdev = inputdev;
|
|
|
|
return 0;
|
|
|
|
err_free_dev:
|
|
input_free_device(inputdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void ideapad_input_exit(struct ideapad_private *priv)
|
|
{
|
|
input_unregister_device(priv->inputdev);
|
|
priv->inputdev = NULL;
|
|
}
|
|
|
|
static void ideapad_input_report(struct ideapad_private *priv,
|
|
unsigned long scancode)
|
|
{
|
|
sparse_keymap_report_event(priv->inputdev, scancode, 1, true);
|
|
}
|
|
|
|
static void ideapad_input_novokey(struct ideapad_private *priv)
|
|
{
|
|
unsigned long long_pressed;
|
|
|
|
if (read_ec_data(priv->adev->handle, VPCCMD_R_NOVO, &long_pressed))
|
|
return;
|
|
|
|
if (long_pressed)
|
|
ideapad_input_report(priv, 17);
|
|
else
|
|
ideapad_input_report(priv, 16);
|
|
}
|
|
|
|
static void ideapad_check_special_buttons(struct ideapad_private *priv)
|
|
{
|
|
unsigned long bit, value;
|
|
|
|
if (read_ec_data(priv->adev->handle, VPCCMD_R_SPECIAL_BUTTONS, &value))
|
|
return;
|
|
|
|
for_each_set_bit (bit, &value, 16) {
|
|
switch (bit) {
|
|
case 6: /* Z570 */
|
|
case 0: /* Z580 */
|
|
/* Thermal Management button */
|
|
ideapad_input_report(priv, 65);
|
|
break;
|
|
case 1:
|
|
/* OneKey Theater button */
|
|
ideapad_input_report(priv, 64);
|
|
break;
|
|
default:
|
|
dev_info(&priv->platform_device->dev,
|
|
"Unknown special button: %lu\n", bit);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* backlight
|
|
*/
|
|
static int ideapad_backlight_get_brightness(struct backlight_device *blightdev)
|
|
{
|
|
struct ideapad_private *priv = bl_get_data(blightdev);
|
|
unsigned long now;
|
|
int err;
|
|
|
|
err = read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now);
|
|
if (err)
|
|
return err;
|
|
|
|
return now;
|
|
}
|
|
|
|
static int ideapad_backlight_update_status(struct backlight_device *blightdev)
|
|
{
|
|
struct ideapad_private *priv = bl_get_data(blightdev);
|
|
int err;
|
|
|
|
err = write_ec_cmd(priv->adev->handle, VPCCMD_W_BL,
|
|
blightdev->props.brightness);
|
|
if (err)
|
|
return err;
|
|
|
|
err = write_ec_cmd(priv->adev->handle, VPCCMD_W_BL_POWER,
|
|
blightdev->props.power != FB_BLANK_POWERDOWN);
|
|
if (err)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct backlight_ops ideapad_backlight_ops = {
|
|
.get_brightness = ideapad_backlight_get_brightness,
|
|
.update_status = ideapad_backlight_update_status,
|
|
};
|
|
|
|
static int ideapad_backlight_init(struct ideapad_private *priv)
|
|
{
|
|
struct backlight_device *blightdev;
|
|
struct backlight_properties props;
|
|
unsigned long max, now, power;
|
|
int err;
|
|
|
|
err = read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &max);
|
|
if (err)
|
|
return err;
|
|
|
|
err = read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now);
|
|
if (err)
|
|
return err;
|
|
|
|
err = read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power);
|
|
if (err)
|
|
return err;
|
|
|
|
memset(&props, 0, sizeof(props));
|
|
|
|
props.max_brightness = max;
|
|
props.type = BACKLIGHT_PLATFORM;
|
|
|
|
blightdev = backlight_device_register("ideapad",
|
|
&priv->platform_device->dev,
|
|
priv,
|
|
&ideapad_backlight_ops,
|
|
&props);
|
|
if (IS_ERR(blightdev)) {
|
|
err = PTR_ERR(blightdev);
|
|
dev_err(&priv->platform_device->dev,
|
|
"Could not register backlight device: %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
priv->blightdev = blightdev;
|
|
blightdev->props.brightness = now;
|
|
blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
|
|
|
|
backlight_update_status(blightdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ideapad_backlight_exit(struct ideapad_private *priv)
|
|
{
|
|
backlight_device_unregister(priv->blightdev);
|
|
priv->blightdev = NULL;
|
|
}
|
|
|
|
static void ideapad_backlight_notify_power(struct ideapad_private *priv)
|
|
{
|
|
struct backlight_device *blightdev = priv->blightdev;
|
|
unsigned long power;
|
|
|
|
if (!blightdev)
|
|
return;
|
|
|
|
if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power))
|
|
return;
|
|
|
|
blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
|
|
}
|
|
|
|
static void ideapad_backlight_notify_brightness(struct ideapad_private *priv)
|
|
{
|
|
unsigned long now;
|
|
|
|
/* if we control brightness via acpi video driver */
|
|
if (!priv->blightdev)
|
|
read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now);
|
|
else
|
|
backlight_force_update(priv->blightdev, BACKLIGHT_UPDATE_HOTKEY);
|
|
}
|
|
|
|
/*
|
|
* keyboard backlight
|
|
*/
|
|
static int ideapad_kbd_bl_brightness_get(struct ideapad_private *priv)
|
|
{
|
|
unsigned long hals;
|
|
int err;
|
|
|
|
err = eval_hals(priv->adev->handle, &hals);
|
|
if (err)
|
|
return err;
|
|
|
|
return !!test_bit(HALS_KBD_BL_STATE_BIT, &hals);
|
|
}
|
|
|
|
static enum led_brightness ideapad_kbd_bl_led_cdev_brightness_get(struct led_classdev *led_cdev)
|
|
{
|
|
struct ideapad_private *priv = container_of(led_cdev, struct ideapad_private, kbd_bl.led);
|
|
|
|
return ideapad_kbd_bl_brightness_get(priv);
|
|
}
|
|
|
|
static int ideapad_kbd_bl_brightness_set(struct ideapad_private *priv, unsigned int brightness)
|
|
{
|
|
int err = exec_sals(priv->adev->handle, brightness ? SALS_KBD_BL_ON : SALS_KBD_BL_OFF);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
priv->kbd_bl.last_brightness = brightness;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ideapad_kbd_bl_led_cdev_brightness_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
struct ideapad_private *priv = container_of(led_cdev, struct ideapad_private, kbd_bl.led);
|
|
|
|
return ideapad_kbd_bl_brightness_set(priv, brightness);
|
|
}
|
|
|
|
static void ideapad_kbd_bl_notify(struct ideapad_private *priv)
|
|
{
|
|
int brightness;
|
|
|
|
if (!priv->kbd_bl.initialized)
|
|
return;
|
|
|
|
brightness = ideapad_kbd_bl_brightness_get(priv);
|
|
if (brightness < 0)
|
|
return;
|
|
|
|
if (brightness == priv->kbd_bl.last_brightness)
|
|
return;
|
|
|
|
priv->kbd_bl.last_brightness = brightness;
|
|
|
|
led_classdev_notify_brightness_hw_changed(&priv->kbd_bl.led, brightness);
|
|
}
|
|
|
|
static int ideapad_kbd_bl_init(struct ideapad_private *priv)
|
|
{
|
|
int brightness, err;
|
|
|
|
if (!priv->features.kbd_bl)
|
|
return -ENODEV;
|
|
|
|
if (WARN_ON(priv->kbd_bl.initialized))
|
|
return -EEXIST;
|
|
|
|
brightness = ideapad_kbd_bl_brightness_get(priv);
|
|
if (brightness < 0)
|
|
return brightness;
|
|
|
|
priv->kbd_bl.last_brightness = brightness;
|
|
|
|
priv->kbd_bl.led.name = "platform::" LED_FUNCTION_KBD_BACKLIGHT;
|
|
priv->kbd_bl.led.max_brightness = 1;
|
|
priv->kbd_bl.led.brightness_get = ideapad_kbd_bl_led_cdev_brightness_get;
|
|
priv->kbd_bl.led.brightness_set_blocking = ideapad_kbd_bl_led_cdev_brightness_set;
|
|
priv->kbd_bl.led.flags = LED_BRIGHT_HW_CHANGED;
|
|
|
|
err = led_classdev_register(&priv->platform_device->dev, &priv->kbd_bl.led);
|
|
if (err)
|
|
return err;
|
|
|
|
priv->kbd_bl.initialized = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ideapad_kbd_bl_exit(struct ideapad_private *priv)
|
|
{
|
|
if (!priv->kbd_bl.initialized)
|
|
return;
|
|
|
|
priv->kbd_bl.initialized = false;
|
|
|
|
led_classdev_unregister(&priv->kbd_bl.led);
|
|
}
|
|
|
|
/*
|
|
* module init/exit
|
|
*/
|
|
static void ideapad_sync_touchpad_state(struct ideapad_private *priv)
|
|
{
|
|
unsigned long value;
|
|
|
|
if (!priv->features.touchpad_ctrl_via_ec)
|
|
return;
|
|
|
|
/* Without reading from EC touchpad LED doesn't switch state */
|
|
if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) {
|
|
unsigned char param;
|
|
/*
|
|
* 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
|
|
*/
|
|
i8042_command(¶m, value ? I8042_CMD_AUX_ENABLE : I8042_CMD_AUX_DISABLE);
|
|
ideapad_input_report(priv, value ? 67 : 66);
|
|
sysfs_notify(&priv->platform_device->dev.kobj, NULL, "touchpad");
|
|
}
|
|
}
|
|
|
|
static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data)
|
|
{
|
|
struct ideapad_private *priv = data;
|
|
unsigned long vpc1, vpc2, bit;
|
|
|
|
if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1))
|
|
return;
|
|
|
|
if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2))
|
|
return;
|
|
|
|
vpc1 = (vpc2 << 8) | vpc1;
|
|
|
|
for_each_set_bit (bit, &vpc1, 16) {
|
|
switch (bit) {
|
|
case 13:
|
|
case 11:
|
|
case 8:
|
|
case 7:
|
|
case 6:
|
|
ideapad_input_report(priv, bit);
|
|
break;
|
|
case 10:
|
|
/*
|
|
* This event gets send on a Yoga 300-11IBR when the EC
|
|
* believes that the device has changed between laptop/
|
|
* tent/stand/tablet mode. The EC relies on getting
|
|
* angle info from 2 accelerometers through a special
|
|
* windows service calling a DSM on the DUAL250E ACPI-
|
|
* device. Linux does not do this, making the laptop/
|
|
* tent/stand/tablet mode info unreliable, so we simply
|
|
* ignore these events.
|
|
*/
|
|
break;
|
|
case 9:
|
|
ideapad_sync_rfk_state(priv);
|
|
break;
|
|
case 5:
|
|
ideapad_sync_touchpad_state(priv);
|
|
break;
|
|
case 4:
|
|
ideapad_backlight_notify_brightness(priv);
|
|
break;
|
|
case 3:
|
|
ideapad_input_novokey(priv);
|
|
break;
|
|
case 2:
|
|
ideapad_backlight_notify_power(priv);
|
|
break;
|
|
case 1:
|
|
/*
|
|
* Some IdeaPads report event 1 every ~20
|
|
* seconds while on battery power; some
|
|
* report this when changing to/from tablet
|
|
* mode; some report this when the keyboard
|
|
* backlight has changed.
|
|
*/
|
|
ideapad_kbd_bl_notify(priv);
|
|
break;
|
|
case 0:
|
|
ideapad_check_special_buttons(priv);
|
|
break;
|
|
default:
|
|
dev_info(&priv->platform_device->dev,
|
|
"Unknown event: %lu\n", bit);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_ACPI_WMI)
|
|
static void ideapad_wmi_notify(u32 value, void *context)
|
|
{
|
|
struct ideapad_private *priv = context;
|
|
unsigned long result;
|
|
|
|
switch (value) {
|
|
case 128:
|
|
ideapad_input_report(priv, value);
|
|
break;
|
|
case 208:
|
|
if (!eval_hals(priv->adev->handle, &result)) {
|
|
bool state = test_bit(HALS_FNLOCK_STATE_BIT, &result);
|
|
|
|
exec_sals(priv->adev->handle, state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF);
|
|
}
|
|
break;
|
|
default:
|
|
dev_info(&priv->platform_device->dev,
|
|
"Unknown WMI event: %u\n", value);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Some ideapads have a hardware rfkill switch, but most do not have one.
|
|
* Reading VPCCMD_R_RF always results in 0 on models without a hardware rfkill,
|
|
* switch causing ideapad_laptop to wrongly report all radios as hw-blocked.
|
|
* There used to be a long list of DMI ids for models without a hw rfkill
|
|
* switch here, but that resulted in playing whack a mole.
|
|
* More importantly wrongly reporting the wifi radio as hw-blocked, results in
|
|
* non working wifi. Whereas not reporting it hw-blocked, when it actually is
|
|
* hw-blocked results in an empty SSID list, which is a much more benign
|
|
* failure mode.
|
|
* So the default now is the much safer option of assuming there is no
|
|
* hardware rfkill switch. This default also actually matches most hardware,
|
|
* since having a hw rfkill switch is quite rare on modern hardware, so this
|
|
* also leads to a much shorter list.
|
|
*/
|
|
static const struct dmi_system_id hw_rfkill_list[] = {
|
|
{}
|
|
};
|
|
|
|
static void ideapad_check_features(struct ideapad_private *priv)
|
|
{
|
|
acpi_handle handle = priv->adev->handle;
|
|
unsigned long val;
|
|
|
|
priv->features.hw_rfkill_switch = dmi_check_system(hw_rfkill_list);
|
|
|
|
/* Most ideapads with ELAN0634 touchpad don't use EC touchpad switch */
|
|
priv->features.touchpad_ctrl_via_ec = !acpi_dev_present("ELAN0634", NULL, -1);
|
|
|
|
if (!read_ec_data(handle, VPCCMD_R_FAN, &val))
|
|
priv->features.fan_mode = true;
|
|
|
|
if (acpi_has_method(handle, "GBMD") && acpi_has_method(handle, "SBMC"))
|
|
priv->features.conservation_mode = true;
|
|
|
|
if (acpi_has_method(handle, "DYTC"))
|
|
priv->features.dytc = true;
|
|
|
|
if (acpi_has_method(handle, "HALS") && acpi_has_method(handle, "SALS")) {
|
|
if (!eval_hals(handle, &val)) {
|
|
if (test_bit(HALS_FNLOCK_SUPPORT_BIT, &val))
|
|
priv->features.fn_lock = true;
|
|
|
|
if (test_bit(HALS_KBD_BL_SUPPORT_BIT, &val))
|
|
priv->features.kbd_bl = true;
|
|
|
|
if (test_bit(HALS_USB_CHARGING_SUPPORT_BIT, &val))
|
|
priv->features.usb_charging = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int ideapad_acpi_add(struct platform_device *pdev)
|
|
{
|
|
struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
|
|
struct ideapad_private *priv;
|
|
acpi_status status;
|
|
unsigned long cfg;
|
|
int err, i;
|
|
|
|
if (!adev || eval_int(adev->handle, "_CFG", &cfg))
|
|
return -ENODEV;
|
|
|
|
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
dev_set_drvdata(&pdev->dev, priv);
|
|
|
|
priv->cfg = cfg;
|
|
priv->adev = adev;
|
|
priv->platform_device = pdev;
|
|
|
|
ideapad_check_features(priv);
|
|
|
|
err = ideapad_sysfs_init(priv);
|
|
if (err)
|
|
return err;
|
|
|
|
ideapad_debugfs_init(priv);
|
|
|
|
err = ideapad_input_init(priv);
|
|
if (err)
|
|
goto input_failed;
|
|
|
|
err = ideapad_kbd_bl_init(priv);
|
|
if (err) {
|
|
if (err != -ENODEV)
|
|
dev_warn(&pdev->dev, "Could not set up keyboard backlight LED: %d\n", err);
|
|
else
|
|
dev_info(&pdev->dev, "Keyboard backlight control not available\n");
|
|
}
|
|
|
|
/*
|
|
* On some models without a hw-switch (the yoga 2 13 at least)
|
|
* VPCCMD_W_RF must be explicitly set to 1 for the wifi to work.
|
|
*/
|
|
if (!priv->features.hw_rfkill_switch)
|
|
write_ec_cmd(priv->adev->handle, VPCCMD_W_RF, 1);
|
|
|
|
/* The same for Touchpad */
|
|
if (!priv->features.touchpad_ctrl_via_ec)
|
|
write_ec_cmd(priv->adev->handle, VPCCMD_W_TOUCHPAD, 1);
|
|
|
|
for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
|
|
if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg))
|
|
ideapad_register_rfkill(priv, i);
|
|
|
|
ideapad_sync_rfk_state(priv);
|
|
ideapad_sync_touchpad_state(priv);
|
|
|
|
err = ideapad_dytc_profile_init(priv);
|
|
if (err) {
|
|
if (err != -ENODEV)
|
|
dev_warn(&pdev->dev, "Could not set up DYTC interface: %d\n", err);
|
|
else
|
|
dev_info(&pdev->dev, "DYTC interface is not available\n");
|
|
}
|
|
|
|
if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
|
|
err = ideapad_backlight_init(priv);
|
|
if (err && err != -ENODEV)
|
|
goto backlight_failed;
|
|
}
|
|
|
|
status = acpi_install_notify_handler(adev->handle,
|
|
ACPI_DEVICE_NOTIFY,
|
|
ideapad_acpi_notify, priv);
|
|
if (ACPI_FAILURE(status)) {
|
|
err = -EIO;
|
|
goto notification_failed;
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_ACPI_WMI)
|
|
for (i = 0; i < ARRAY_SIZE(ideapad_wmi_fnesc_events); i++) {
|
|
status = wmi_install_notify_handler(ideapad_wmi_fnesc_events[i],
|
|
ideapad_wmi_notify, priv);
|
|
if (ACPI_SUCCESS(status)) {
|
|
priv->fnesc_guid = ideapad_wmi_fnesc_events[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_EXIST) {
|
|
err = -EIO;
|
|
goto notification_failed_wmi;
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
#if IS_ENABLED(CONFIG_ACPI_WMI)
|
|
notification_failed_wmi:
|
|
acpi_remove_notify_handler(priv->adev->handle,
|
|
ACPI_DEVICE_NOTIFY,
|
|
ideapad_acpi_notify);
|
|
#endif
|
|
|
|
notification_failed:
|
|
ideapad_backlight_exit(priv);
|
|
|
|
backlight_failed:
|
|
ideapad_dytc_profile_exit(priv);
|
|
|
|
for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
|
|
ideapad_unregister_rfkill(priv, i);
|
|
|
|
ideapad_kbd_bl_exit(priv);
|
|
ideapad_input_exit(priv);
|
|
|
|
input_failed:
|
|
ideapad_debugfs_exit(priv);
|
|
ideapad_sysfs_exit(priv);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int ideapad_acpi_remove(struct platform_device *pdev)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(&pdev->dev);
|
|
int i;
|
|
|
|
#if IS_ENABLED(CONFIG_ACPI_WMI)
|
|
if (priv->fnesc_guid)
|
|
wmi_remove_notify_handler(priv->fnesc_guid);
|
|
#endif
|
|
|
|
acpi_remove_notify_handler(priv->adev->handle,
|
|
ACPI_DEVICE_NOTIFY,
|
|
ideapad_acpi_notify);
|
|
|
|
ideapad_backlight_exit(priv);
|
|
ideapad_dytc_profile_exit(priv);
|
|
|
|
for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
|
|
ideapad_unregister_rfkill(priv, i);
|
|
|
|
ideapad_kbd_bl_exit(priv);
|
|
ideapad_input_exit(priv);
|
|
ideapad_debugfs_exit(priv);
|
|
ideapad_sysfs_exit(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int ideapad_acpi_resume(struct device *dev)
|
|
{
|
|
struct ideapad_private *priv = dev_get_drvdata(dev);
|
|
|
|
ideapad_sync_rfk_state(priv);
|
|
ideapad_sync_touchpad_state(priv);
|
|
|
|
if (priv->dytc)
|
|
dytc_profile_refresh(priv);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume);
|
|
|
|
static const struct acpi_device_id ideapad_device_ids[] = {
|
|
{"VPC2004", 0},
|
|
{"", 0},
|
|
};
|
|
MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
|
|
|
|
static struct platform_driver ideapad_acpi_driver = {
|
|
.probe = ideapad_acpi_add,
|
|
.remove = ideapad_acpi_remove,
|
|
.driver = {
|
|
.name = "ideapad_acpi",
|
|
.pm = &ideapad_pm,
|
|
.acpi_match_table = ACPI_PTR(ideapad_device_ids),
|
|
},
|
|
};
|
|
|
|
module_platform_driver(ideapad_acpi_driver);
|
|
|
|
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
|
|
MODULE_DESCRIPTION("IdeaPad ACPI Extras");
|
|
MODULE_LICENSE("GPL");
|