diff options
Diffstat (limited to 'drivers/platform/x86/ideapad-laptop.c')
-rw-r--r-- | drivers/platform/x86/ideapad-laptop.c | 292 |
1 files changed, 262 insertions, 30 deletions
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 88eefccb6e..490815917a 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -125,6 +125,7 @@ struct ideapad_rfk_priv { struct ideapad_private { struct acpi_device *adev; + struct mutex vpc_mutex; /* protects the VPC calls */ struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM]; struct ideapad_rfk_priv rfk_priv[IDEAPAD_RFKILL_DEV_NUM]; struct platform_device *platform_device; @@ -145,6 +146,7 @@ struct ideapad_private { bool touchpad_ctrl_via_ec : 1; bool ctrl_ps2_aux_port : 1; bool usb_charging : 1; + bool ymc_ec_trigger : 1; } features; struct { bool initialized; @@ -152,6 +154,11 @@ struct ideapad_private { struct led_classdev led; unsigned int last_brightness; } kbd_bl; + struct { + bool initialized; + struct led_classdev led; + unsigned int last_brightness; + } fn_lock; }; static bool no_bt_rfkill; @@ -188,6 +195,12 @@ 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."); +static bool ymc_ec_trigger __read_mostly; +module_param(ymc_ec_trigger, bool, 0444); +MODULE_PARM_DESC(ymc_ec_trigger, + "Enable EC triggering work-around to force emitting tablet mode events. " + "If you need this please report this to: platform-driver-x86@vger.kernel.org"); + /* * shared data */ @@ -292,6 +305,8 @@ static int debugfs_status_show(struct seq_file *s, void *data) struct ideapad_private *priv = s->private; unsigned long value; + guard(mutex)(&priv->vpc_mutex); + 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)) @@ -410,7 +425,8 @@ static ssize_t camera_power_show(struct device *dev, unsigned long result; int err; - err = read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &result); + scoped_guard(mutex, &priv->vpc_mutex) + err = read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &result); if (err) return err; @@ -429,7 +445,8 @@ static ssize_t camera_power_store(struct device *dev, if (err) return err; - err = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state); + scoped_guard(mutex, &priv->vpc_mutex) + err = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state); if (err) return err; @@ -482,7 +499,8 @@ static ssize_t fan_mode_show(struct device *dev, unsigned long result; int err; - err = read_ec_data(priv->adev->handle, VPCCMD_R_FAN, &result); + scoped_guard(mutex, &priv->vpc_mutex) + err = read_ec_data(priv->adev->handle, VPCCMD_R_FAN, &result); if (err) return err; @@ -504,7 +522,8 @@ static ssize_t fan_mode_store(struct device *dev, if (state > 4 || state == 3) return -EINVAL; - err = write_ec_cmd(priv->adev->handle, VPCCMD_W_FAN, state); + scoped_guard(mutex, &priv->vpc_mutex) + err = write_ec_cmd(priv->adev->handle, VPCCMD_W_FAN, state); if (err) return err; @@ -513,11 +532,8 @@ static ssize_t fan_mode_store(struct device *dev, static DEVICE_ATTR_RW(fan_mode); -static ssize_t fn_lock_show(struct device *dev, - struct device_attribute *attr, - char *buf) +static int ideapad_fn_lock_get(struct ideapad_private *priv) { - struct ideapad_private *priv = dev_get_drvdata(dev); unsigned long hals; int err; @@ -525,7 +541,40 @@ static ssize_t fn_lock_show(struct device *dev, if (err) return err; - return sysfs_emit(buf, "%d\n", !!test_bit(HALS_FNLOCK_STATE_BIT, &hals)); + return !!test_bit(HALS_FNLOCK_STATE_BIT, &hals); +} + +static int ideapad_fn_lock_set(struct ideapad_private *priv, bool state) +{ + return exec_sals(priv->adev->handle, + state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF); +} + +static void ideapad_fn_lock_led_notify(struct ideapad_private *priv, int brightness) +{ + if (!priv->fn_lock.initialized) + return; + + if (brightness == priv->fn_lock.last_brightness) + return; + + priv->fn_lock.last_brightness = brightness; + + led_classdev_notify_brightness_hw_changed(&priv->fn_lock.led, brightness); +} + +static ssize_t fn_lock_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ideapad_private *priv = dev_get_drvdata(dev); + int brightness; + + brightness = ideapad_fn_lock_get(priv); + if (brightness < 0) + return brightness; + + return sysfs_emit(buf, "%d\n", brightness); } static ssize_t fn_lock_store(struct device *dev, @@ -540,10 +589,12 @@ static ssize_t fn_lock_store(struct device *dev, if (err) return err; - err = exec_sals(priv->adev->handle, state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF); + err = ideapad_fn_lock_set(priv, state); if (err) return err; + ideapad_fn_lock_led_notify(priv, state); + return count; } @@ -557,7 +608,8 @@ static ssize_t touchpad_show(struct device *dev, unsigned long result; int err; - err = read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &result); + scoped_guard(mutex, &priv->vpc_mutex) + err = read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &result); if (err) return err; @@ -578,7 +630,8 @@ static ssize_t touchpad_store(struct device *dev, if (err) return err; - err = write_ec_cmd(priv->adev->handle, VPCCMD_W_TOUCHPAD, state); + scoped_guard(mutex, &priv->vpc_mutex) + err = write_ec_cmd(priv->adev->handle, VPCCMD_W_TOUCHPAD, state); if (err) return err; @@ -975,6 +1028,8 @@ static int ideapad_rfk_set(void *data, bool blocked) struct ideapad_rfk_priv *priv = data; int opcode = ideapad_rfk_data[priv->dev].opcode; + guard(mutex)(&priv->priv->vpc_mutex); + return write_ec_cmd(priv->priv->adev->handle, opcode, !blocked); } @@ -988,6 +1043,8 @@ static void ideapad_sync_rfk_state(struct ideapad_private *priv) int i; if (priv->features.hw_rfkill_switch) { + guard(mutex)(&priv->vpc_mutex); + if (read_ec_data(priv->adev->handle, VPCCMD_R_RF, &hw_blocked)) return; hw_blocked = !hw_blocked; @@ -1091,6 +1148,8 @@ static const struct key_entry ideapad_keymap[] = { { KE_KEY, 0x07 | IDEAPAD_WMI_KEY, { KEY_HELP } }, { KE_KEY, 0x0e | IDEAPAD_WMI_KEY, { KEY_PICKUP_PHONE } }, { KE_KEY, 0x0f | IDEAPAD_WMI_KEY, { KEY_HANGUP_PHONE } }, + /* Refresh Rate Toggle (Fn+R) */ + { KE_KEY, 0x10 | IDEAPAD_WMI_KEY, { KEY_REFRESH_RATE_TOGGLE } }, /* Dark mode toggle */ { KE_KEY, 0x13 | IDEAPAD_WMI_KEY, { KEY_PROG1 } }, /* Sound profile switch */ @@ -1100,7 +1159,7 @@ static const struct key_entry ideapad_keymap[] = { /* Lenovo Support */ { KE_KEY, 0x27 | IDEAPAD_WMI_KEY, { KEY_HELP } }, /* Refresh Rate Toggle */ - { KE_KEY, 0x0a | IDEAPAD_WMI_KEY, { KEY_DISPLAYTOGGLE } }, + { KE_KEY, 0x0a | IDEAPAD_WMI_KEY, { KEY_REFRESH_RATE_TOGGLE } }, { KE_END }, }; @@ -1159,8 +1218,9 @@ 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; + scoped_guard(mutex, &priv->vpc_mutex) + if (read_ec_data(priv->adev->handle, VPCCMD_R_NOVO, &long_pressed)) + return; if (long_pressed) ideapad_input_report(priv, 17); @@ -1172,15 +1232,19 @@ 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; + scoped_guard(mutex, &priv->vpc_mutex) + 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); + /* Thermal Management / Performance Mode button */ + if (priv->dytc) + platform_profile_cycle(); + else + ideapad_input_report(priv, 65); break; case 1: /* OneKey Theater button */ @@ -1203,6 +1267,8 @@ static int ideapad_backlight_get_brightness(struct backlight_device *blightdev) unsigned long now; int err; + guard(mutex)(&priv->vpc_mutex); + err = read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now); if (err) return err; @@ -1215,6 +1281,8 @@ static int ideapad_backlight_update_status(struct backlight_device *blightdev) struct ideapad_private *priv = bl_get_data(blightdev); int err; + guard(mutex)(&priv->vpc_mutex); + err = write_ec_cmd(priv->adev->handle, VPCCMD_W_BL, blightdev->props.brightness); if (err) @@ -1292,6 +1360,8 @@ static void ideapad_backlight_notify_power(struct ideapad_private *priv) if (!blightdev) return; + guard(mutex)(&priv->vpc_mutex); + if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power)) return; @@ -1304,7 +1374,8 @@ static void ideapad_backlight_notify_brightness(struct ideapad_private *priv) /* if we control brightness via acpi video driver */ if (!priv->blightdev) - read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now); + scoped_guard(mutex, &priv->vpc_mutex) + read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now); else backlight_force_update(priv->blightdev, BACKLIGHT_UPDATE_HOTKEY); } @@ -1461,6 +1532,65 @@ static void ideapad_kbd_bl_exit(struct ideapad_private *priv) } /* + * FnLock LED + */ +static enum led_brightness ideapad_fn_lock_led_cdev_get(struct led_classdev *led_cdev) +{ + struct ideapad_private *priv = container_of(led_cdev, struct ideapad_private, fn_lock.led); + + return ideapad_fn_lock_get(priv); +} + +static int ideapad_fn_lock_led_cdev_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct ideapad_private *priv = container_of(led_cdev, struct ideapad_private, fn_lock.led); + + return ideapad_fn_lock_set(priv, brightness); +} + +static int ideapad_fn_lock_led_init(struct ideapad_private *priv) +{ + int brightness, err; + + if (!priv->features.fn_lock) + return -ENODEV; + + if (WARN_ON(priv->fn_lock.initialized)) + return -EEXIST; + + priv->fn_lock.led.max_brightness = 1; + + brightness = ideapad_fn_lock_get(priv); + if (brightness < 0) + return brightness; + + priv->fn_lock.last_brightness = brightness; + priv->fn_lock.led.name = "platform::" LED_FUNCTION_FNLOCK; + priv->fn_lock.led.brightness_get = ideapad_fn_lock_led_cdev_get; + priv->fn_lock.led.brightness_set_blocking = ideapad_fn_lock_led_cdev_set; + priv->fn_lock.led.flags = LED_BRIGHT_HW_CHANGED; + + err = led_classdev_register(&priv->platform_device->dev, &priv->fn_lock.led); + if (err) + return err; + + priv->fn_lock.initialized = true; + + return 0; +} + +static void ideapad_fn_lock_led_exit(struct ideapad_private *priv) +{ + if (!priv->fn_lock.initialized) + return; + + priv->fn_lock.initialized = false; + + led_classdev_unregister(&priv->fn_lock.led); +} + +/* * module init/exit */ static void ideapad_sync_touchpad_state(struct ideapad_private *priv, bool send_events) @@ -1470,7 +1600,8 @@ static void ideapad_sync_touchpad_state(struct ideapad_private *priv, bool send_ int ret; /* Without reading from EC touchpad LED doesn't switch state */ - ret = read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value); + scoped_guard(mutex, &priv->vpc_mutex) + ret = read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value); if (ret) return; @@ -1498,16 +1629,92 @@ static void ideapad_sync_touchpad_state(struct ideapad_private *priv, bool send_ priv->r_touchpad_val = value; } +static const struct dmi_system_id ymc_ec_trigger_quirk_dmi_table[] = { + { + /* Lenovo Yoga 7 14ARB7 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "82QF"), + }, + }, + { + /* Lenovo Yoga 7 14ACN6 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "82N7"), + }, + }, + { } +}; + +static void ideapad_laptop_trigger_ec(void) +{ + struct ideapad_private *priv; + int ret; + + guard(mutex)(&ideapad_shared_mutex); + + priv = ideapad_shared; + if (!priv) + return; + + if (!priv->features.ymc_ec_trigger) + return; + + scoped_guard(mutex, &priv->vpc_mutex) + ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_YMC, 1); + if (ret) + dev_warn(&priv->platform_device->dev, "Could not write YMC: %d\n", ret); +} + +static int ideapad_laptop_nb_notify(struct notifier_block *nb, + unsigned long action, void *data) +{ + switch (action) { + case IDEAPAD_LAPTOP_YMC_EVENT: + ideapad_laptop_trigger_ec(); + break; + } + + return 0; +} + +static struct notifier_block ideapad_laptop_notifier = { + .notifier_call = ideapad_laptop_nb_notify, +}; + +static BLOCKING_NOTIFIER_HEAD(ideapad_laptop_chain_head); + +int ideapad_laptop_register_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&ideapad_laptop_chain_head, nb); +} +EXPORT_SYMBOL_NS_GPL(ideapad_laptop_register_notifier, IDEAPAD_LAPTOP); + +int ideapad_laptop_unregister_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_unregister(&ideapad_laptop_chain_head, nb); +} +EXPORT_SYMBOL_NS_GPL(ideapad_laptop_unregister_notifier, IDEAPAD_LAPTOP); + +void ideapad_laptop_call_notifier(unsigned long action, void *data) +{ + blocking_notifier_call_chain(&ideapad_laptop_chain_head, action, data); +} +EXPORT_SYMBOL_NS_GPL(ideapad_laptop_call_notifier, IDEAPAD_LAPTOP); + 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; + scoped_guard(mutex, &priv->vpc_mutex) { + if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1)) + return; - if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2)) - return; + if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2)) + return; + } vpc1 = (vpc2 << 8) | vpc1; @@ -1634,6 +1841,8 @@ static void ideapad_check_features(struct ideapad_private *priv) 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; + priv->features.ymc_ec_trigger = + ymc_ec_trigger || dmi_check_system(ymc_ec_trigger_quirk_dmi_table); if (!read_ec_data(handle, VPCCMD_R_FAN, &val)) priv->features.fan_mode = true; @@ -1707,7 +1916,6 @@ 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); @@ -1720,11 +1928,13 @@ static void ideapad_wmi_notify(struct wmi_device *wdev, union acpi_object *data) 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); + if (priv->features.set_fn_lock_led) { + int brightness = ideapad_fn_lock_get(priv); - exec_sals(priv->adev->handle, state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF); + if (brightness >= 0) { + ideapad_fn_lock_set(priv, brightness); + ideapad_fn_lock_led_notify(priv, brightness); + } } if (data->type != ACPI_TYPE_INTEGER) { @@ -1736,6 +1946,10 @@ static void ideapad_wmi_notify(struct wmi_device *wdev, union acpi_object *data) dev_dbg(&wdev->dev, "WMI fn-key event: 0x%llx\n", data->integer.value); + /* 0x02 FnLock, 0x03 Esc */ + if (data->integer.value == 0x02 || data->integer.value == 0x03) + ideapad_fn_lock_led_notify(priv, data->integer.value == 0x02); + ideapad_input_report(priv, data->integer.value | IDEAPAD_WMI_KEY); @@ -1809,6 +2023,10 @@ static int ideapad_acpi_add(struct platform_device *pdev) priv->adev = adev; priv->platform_device = pdev; + err = devm_mutex_init(&pdev->dev, &priv->vpc_mutex); + if (err) + return err; + ideapad_check_features(priv); err = ideapad_sysfs_init(priv); @@ -1829,6 +2047,14 @@ static int ideapad_acpi_add(struct platform_device *pdev) dev_info(&pdev->dev, "Keyboard backlight control not available\n"); } + err = ideapad_fn_lock_led_init(priv); + if (err) { + if (err != -ENODEV) + dev_warn(&pdev->dev, "Could not set up FnLock LED: %d\n", err); + else + dev_info(&pdev->dev, "FnLock 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. @@ -1869,6 +2095,8 @@ static int ideapad_acpi_add(struct platform_device *pdev) if (err) goto shared_init_failed; + ideapad_laptop_register_notifier(&ideapad_laptop_notifier); + return 0; shared_init_failed: @@ -1885,6 +2113,7 @@ backlight_failed: for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) ideapad_unregister_rfkill(priv, i); + ideapad_fn_lock_led_exit(priv); ideapad_kbd_bl_exit(priv); ideapad_input_exit(priv); @@ -1900,6 +2129,8 @@ static void ideapad_acpi_remove(struct platform_device *pdev) struct ideapad_private *priv = dev_get_drvdata(&pdev->dev); int i; + ideapad_laptop_unregister_notifier(&ideapad_laptop_notifier); + ideapad_shared_exit(priv); acpi_remove_notify_handler(priv->adev->handle, @@ -1912,6 +2143,7 @@ static void ideapad_acpi_remove(struct platform_device *pdev) for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) ideapad_unregister_rfkill(priv, i); + ideapad_fn_lock_led_exit(priv); ideapad_kbd_bl_exit(priv); ideapad_input_exit(priv); ideapad_debugfs_exit(priv); |