| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ike Panhc | 2120 | 25.19% | 21 | 21.00% |
| Barnabás Pőcze | 1820 | 21.62% | 24 | 24.00% |
| Jiaxun Yang | 1050 | 12.47% | 3 | 3.00% |
| David Woodhouse | 798 | 9.48% | 2 | 2.00% |
| Philipp Jungkamp | 726 | 8.63% | 1 | 1.00% |
| Rui Zhang | 599 | 7.12% | 5 | 5.00% |
| Hans de Goede | 322 | 3.83% | 14 | 14.00% |
| Maxim Mikityanskiy | 319 | 3.79% | 4 | 4.00% |
| Hao Wei Tee | 144 | 1.71% | 1 | 1.00% |
| Eray Orçunus | 130 | 1.54% | 1 | 1.00% |
| Oleg Keri | 86 | 1.02% | 1 | 1.00% |
| Ritesh Raj Sarraf | 76 | 0.90% | 1 | 1.00% |
| Kelly Anderson | 68 | 0.81% | 1 | 1.00% |
| Arnav Rawat | 44 | 0.52% | 1 | 1.00% |
| Arnd Bergmann | 31 | 0.37% | 2 | 2.00% |
| Alex Hung | 13 | 0.15% | 1 | 1.00% |
| Himangi Saraogi | 10 | 0.12% | 1 | 1.00% |
| Rafael J. Wysocki | 9 | 0.11% | 1 | 1.00% |
| Greg Kroah-Hartman | 7 | 0.08% | 1 | 1.00% |
| Joe Perches | 7 | 0.08% | 1 | 1.00% |
| Qiu Wenbo | 6 | 0.07% | 1 | 1.00% |
| Andy Shevchenko | 6 | 0.07% | 1 | 1.00% |
| René Bolldorf | 6 | 0.07% | 1 | 1.00% |
| Axel Lin | 5 | 0.06% | 1 | 1.00% |
| Zhang Xianwei | 3 | 0.04% | 1 | 1.00% |
| Mathias Krause | 3 | 0.04% | 2 | 2.00% |
| ManYi Li | 2 | 0.02% | 1 | 1.00% |
| Thomas Gleixner | 2 | 0.02% | 1 | 1.00% |
| Dan Carpenter | 2 | 0.02% | 1 | 1.00% |
| Al Viro | 1 | 0.01% | 1 | 1.00% |
| Bhumika Goyal | 1 | 0.01% | 1 | 1.00% |
| Michał Kępień | 1 | 0.01% | 1 | 1.00% |
| Total | 8417 | 100 |
// 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 <linux/wmi.h> #include <acpi/video.h> #include <dt-bindings/leds/common.h> #define IDEAPAD_RFKILL_DEV_NUM 3 enum { CFG_CAP_BT_BIT = 16, CFG_CAP_3G_BIT = 17, CFG_CAP_WIFI_BIT = 18, CFG_CAP_CAM_BIT = 19, /* * These are OnScreenDisplay support bits that can be useful to determine * whether a hotkey exists/should show OSD. But they aren't particularly * meaningful since they were introduced later, i.e. 2010 IdeaPads * don't have these, but they still have had OSD for hotkeys. */ CFG_OSD_NUMLK_BIT = 27, CFG_OSD_CAPSLK_BIT = 28, CFG_OSD_MICMUTE_BIT = 29, CFG_OSD_TOUCHPAD_BIT = 30, CFG_OSD_CAM_BIT = 31, }; 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; unsigned long r_touchpad_val; struct { bool conservation_mode : 1; bool dytc : 1; bool fan_mode : 1; bool fn_lock : 1; bool set_fn_lock_led : 1; bool hw_rfkill_switch : 1; bool kbd_bl : 1; bool touchpad_ctrl_via_ec : 1; bool ctrl_ps2_aux_port : 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. " "If you need this please report this to: platform-driver-x86@vger.kernel.org"); static bool hw_rfkill_switch; module_param(hw_rfkill_switch, bool, 0444); MODULE_PARM_DESC(hw_rfkill_switch, "Enable rfkill support for laptops with a hw on/off wifi switch/slider. " "If you need this please report this to: platform-driver-x86@vger.kernel.org"); static bool set_fn_lock_led; module_param(set_fn_lock_led, bool, 0444); MODULE_PARM_DESC(set_fn_lock_led, "Enable driver based updates of the fn-lock LED on fn-lock changes. " "If you need this please report this to: platform-driver-x86@vger.kernel.org"); static bool ctrl_ps2_aux_port; module_param(ctrl_ps2_aux_port, bool, 0444); MODULE_PARM_DESC(ctrl_ps2_aux_port, "Enable driver based PS/2 aux port en-/dis-abling on touchpad on/off toggle. " "If you need this please report this to: platform-driver-x86@vger.kernel.org"); static bool touchpad_ctrl_via_ec; module_param(touchpad_ctrl_via_ec, bool, 0444); MODULE_PARM_DESC(touchpad_ctrl_via_ec, "Enable registering a 'touchpad' sysfs-attribute which can be used to manually " "tell the EC to enable/disable the touchpad. This may not work on all models."); /* * shared data */ static struct ideapad_private *ideapad_shared; static DEFINE_MUTEX(ideapad_shared_mutex); static int ideapad_shared_init(struct ideapad_private *priv) { int ret; mutex_lock(&ideapad_shared_mutex); if (!ideapad_shared) { ideapad_shared = priv; ret = 0; } else { dev_warn(&priv->adev->dev, "found multiple platform devices\n"); ret = -EINVAL; } mutex_unlock(&ideapad_shared_mutex); return ret; } static void ideapad_shared_exit(struct ideapad_private *priv) { mutex_lock(&ideapad_shared_mutex); if (ideapad_shared == priv) ideapad_shared = NULL; mutex_unlock(&ideapad_shared_mutex); } /* * 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"); seq_puts(s, "\n"); seq_puts(s, "OSD support:"); if (test_bit(CFG_OSD_NUMLK_BIT, &priv->cfg)) seq_puts(s, " num-lock"); if (test_bit(CFG_OSD_CAPSLK_BIT, &priv->cfg)) seq_puts(s, " caps-lock"); if (test_bit(CFG_OSD_MICMUTE_BIT, &priv->cfg)) seq_puts(s, " mic-mute"); if (test_bit(CFG_OSD_TOUCHPAD_BIT, &priv->cfg)) seq_puts(s, " touchpad"); if (test_bit(CFG_OSD_CAM_BIT, &priv->cfg)) seq_puts(s, " camera"); 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; priv->r_touchpad_val = result; 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; priv->r_touchpad_val = state; 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; 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 */ #define IDEAPAD_WMI_KEY 0x100 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, 68, { KEY_TOUCHPAD_TOGGLE } }, { KE_KEY, 128, { KEY_ESC } }, /* * WMI keys */ /* FnLock (handled by the firmware) */ { KE_IGNORE, 0x02 | IDEAPAD_WMI_KEY }, /* Esc (handled by the firmware) */ { KE_IGNORE, 0x03 | IDEAPAD_WMI_KEY }, /* Customizable Lenovo Hotkey ("star" with 'S' inside) */ { KE_KEY, 0x01 | IDEAPAD_WMI_KEY, { KEY_FAVORITES } }, /* Dark mode toggle */ { KE_KEY, 0x13 | IDEAPAD_WMI_KEY, { KEY_PROG1 } }, /* Sound profile switch */ { KE_KEY, 0x12 | IDEAPAD_WMI_KEY, { KEY_PROG2 } }, /* Lenovo Virtual Background application */ { KE_KEY, 0x28 | IDEAPAD_WMI_KEY, { KEY_PROG3 } }, /* Lenovo Support */ { KE_KEY, 0x27 | IDEAPAD_WMI_KEY, { KEY_HELP } }, /* Refresh Rate Toggle */ { KE_KEY, 0x0a | IDEAPAD_WMI_KEY, { KEY_DISPLAYTOGGLE } }, { 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, bool send_events) { unsigned long value; unsigned char param; int ret; /* Without reading from EC touchpad LED doesn't switch state */ ret = read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value); if (ret) return; /* * 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 */ if (priv->features.ctrl_ps2_aux_port) i8042_command(¶m, value ? I8042_CMD_AUX_ENABLE : I8042_CMD_AUX_DISABLE); if (send_events) { /* * On older models the EC controls the touchpad and toggles it * on/off itself, in this case we report KEY_TOUCHPAD_ON/_OFF. * If the EC did not toggle, report KEY_TOUCHPAD_TOGGLE. */ if (value != priv->r_touchpad_val) { ideapad_input_report(priv, value ? 67 : 66); sysfs_notify(&priv->platform_device->dev.kobj, NULL, "touchpad"); } else { ideapad_input_report(priv, 68); } } priv->r_touchpad_val = value; } 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, true); 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); } } } /* On some models we need to call exec_sals(SALS_FNLOCK_ON/OFF) to set the LED */ static const struct dmi_system_id set_fn_lock_led_list[] = { { /* https://bugzilla.kernel.org/show_bug.cgi?id=212671 */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Legion R7000P2020H"), } }, { .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Legion 5 15ARH05"), } }, {} }; /* * 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[] = { {} }; /* * On some models the EC toggles the touchpad muted LED on touchpad toggle * hotkey presses, but the EC does not actually disable the touchpad itself. * On these models the driver needs to explicitly enable/disable the i8042 * (PS/2) aux port. */ static const struct dmi_system_id ctrl_ps2_aux_port_list[] = { { /* Lenovo Ideapad Z570 */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_MATCH(DMI_PRODUCT_VERSION, "Ideapad Z570"), }, }, {} }; static void ideapad_check_features(struct ideapad_private *priv) { acpi_handle handle = priv->adev->handle; unsigned long val; priv->features.set_fn_lock_led = set_fn_lock_led || dmi_check_system(set_fn_lock_led_list); priv->features.hw_rfkill_switch = hw_rfkill_switch || dmi_check_system(hw_rfkill_list); priv->features.ctrl_ps2_aux_port = ctrl_ps2_aux_port || dmi_check_system(ctrl_ps2_aux_port_list); priv->features.touchpad_ctrl_via_ec = touchpad_ctrl_via_ec; 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; } } } #if IS_ENABLED(CONFIG_ACPI_WMI) /* * WMI driver */ enum ideapad_wmi_event_type { IDEAPAD_WMI_EVENT_ESC, IDEAPAD_WMI_EVENT_FN_KEYS, }; struct ideapad_wmi_private { enum ideapad_wmi_event_type event; }; static int ideapad_wmi_probe(struct wmi_device *wdev, const void *context) { struct ideapad_wmi_private *wpriv; wpriv = devm_kzalloc(&wdev->dev, sizeof(*wpriv), GFP_KERNEL); if (!wpriv) return -ENOMEM; *wpriv = *(const struct ideapad_wmi_private *)context; dev_set_drvdata(&wdev->dev, wpriv); return 0; } static void ideapad_wmi_notify(struct wmi_device *wdev, union acpi_object *data) { struct ideapad_wmi_private *wpriv = dev_get_drvdata(&wdev->dev); struct ideapad_private *priv; unsigned long result; mutex_lock(&ideapad_shared_mutex); priv = ideapad_shared; if (!priv) goto unlock; switch (wpriv->event) { case IDEAPAD_WMI_EVENT_ESC: ideapad_input_report(priv, 128); break; case IDEAPAD_WMI_EVENT_FN_KEYS: if (priv->features.set_fn_lock_led && !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); } if (data->type != ACPI_TYPE_INTEGER) { dev_warn(&wdev->dev, "WMI event data is not an integer\n"); break; } dev_dbg(&wdev->dev, "WMI fn-key event: 0x%llx\n", data->integer.value); ideapad_input_report(priv, data->integer.value | IDEAPAD_WMI_KEY); break; } unlock: mutex_unlock(&ideapad_shared_mutex); } static const struct ideapad_wmi_private ideapad_wmi_context_esc = { .event = IDEAPAD_WMI_EVENT_ESC }; static const struct ideapad_wmi_private ideapad_wmi_context_fn_keys = { .event = IDEAPAD_WMI_EVENT_FN_KEYS }; static const struct wmi_device_id ideapad_wmi_ids[] = { { "26CAB2E5-5CF1-46AE-AAC3-4A12B6BA50E6", &ideapad_wmi_context_esc }, /* Yoga 3 */ { "56322276-8493-4CE8-A783-98C991274F5E", &ideapad_wmi_context_esc }, /* Yoga 700 */ { "8FC0DE0C-B4E4-43FD-B0F3-8871711C1294", &ideapad_wmi_context_fn_keys }, /* Legion 5 */ {}, }; MODULE_DEVICE_TABLE(wmi, ideapad_wmi_ids); static struct wmi_driver ideapad_wmi_driver = { .driver = { .name = "ideapad_wmi", }, .id_table = ideapad_wmi_ids, .probe = ideapad_wmi_probe, .notify = ideapad_wmi_notify, }; static int ideapad_wmi_driver_register(void) { return wmi_driver_register(&ideapad_wmi_driver); } static void ideapad_wmi_driver_unregister(void) { return wmi_driver_unregister(&ideapad_wmi_driver); } #else static inline int ideapad_wmi_driver_register(void) { return 0; } static inline void ideapad_wmi_driver_unregister(void) { } #endif /* * ACPI driver */ 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); 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, false); 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; } err = ideapad_shared_init(priv); if (err) goto shared_init_failed; return 0; shared_init_failed: acpi_remove_notify_handler(priv->adev->handle, ACPI_DEVICE_NOTIFY, ideapad_acpi_notify); 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; ideapad_shared_exit(priv); 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, false); 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), }, }; static int __init ideapad_laptop_init(void) { int err; err = ideapad_wmi_driver_register(); if (err) return err; err = platform_driver_register(&ideapad_acpi_driver); if (err) { ideapad_wmi_driver_unregister(); return err; } return 0; } module_init(ideapad_laptop_init) static void __exit ideapad_laptop_exit(void) { ideapad_wmi_driver_unregister(); platform_driver_unregister(&ideapad_acpi_driver); } module_exit(ideapad_laptop_exit) MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); MODULE_DESCRIPTION("IdeaPad ACPI Extras"); MODULE_LICENSE("GPL");
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