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Thu, 09 Sep 2021 13:35:04 +1000 From: Troy Rollo To: Matthew Garrett , =?UTF-8?q?Pali=20Roh=C3=A1r?= , Hans de Goede , Mark Gross Cc: Troy Rollo , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] Process tablet mode events on Dell Inspiron 2n1 Date: Thu, 9 Sep 2021 13:35:01 +1000 Message-Id: <20210909033502.1994749-1-linux2021@troy.rollo.name> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --- drivers/platform/x86/dell/dell-wmi-base.c | 36 ++++++++++++++++------- 1 file changed, 26 insertions(+), 10 deletions(-) diff --git a/drivers/platform/x86/dell/dell-wmi-base.c b/drivers/platform/x86/dell/dell-wmi-base.c index 089c125e18f7..474ca05055ab 100644 --- a/drivers/platform/x86/dell/dell-wmi-base.c +++ b/drivers/platform/x86/dell/dell-wmi-base.c @@ -309,6 +309,9 @@ static const struct key_entry dell_wmi_keymap_type_0010[] = { * Keymap for WMI events of type 0x0011 */ static const struct key_entry dell_wmi_keymap_type_0011[] = { + /* Reflex keyboard switch on 2n1 devices */ + { KE_VSW, 0xe070, { .sw = { SW_TABLET_MODE } } }, + /* Battery unplugged */ { KE_IGNORE, 0xfff0, { KEY_RESERVED } }, @@ -344,17 +347,19 @@ static const struct key_entry dell_wmi_keymap_type_0012[] = { { KE_IGNORE, 0xe035, { KEY_RESERVED } }, }; -static void dell_wmi_process_key(struct wmi_device *wdev, int type, int code) +static int dell_wmi_process_key(struct wmi_device *wdev, int type, int code, u16 *buffer, int remaining) { struct dell_wmi_priv *priv = dev_get_drvdata(&wdev->dev); const struct key_entry *key; + int used = 0; + int value = 1; key = sparse_keymap_entry_from_scancode(priv->input_dev, (type << 16) | code); if (!key) { pr_info("Unknown key with type 0x%04x and code 0x%04x pressed\n", type, code); - return; + return 0; } pr_debug("Key with type 0x%04x and code 0x%04x pressed\n", type, code); @@ -363,16 +368,22 @@ static void dell_wmi_process_key(struct wmi_device *wdev, int type, int code) if ((key->keycode == KEY_BRIGHTNESSUP || key->keycode == KEY_BRIGHTNESSDOWN) && acpi_video_handles_brightness_key_presses()) - return; + return 0; if (type == 0x0000 && code == 0xe025 && !wmi_requires_smbios_request) - return; + return 0; - if (key->keycode == KEY_KBDILLUMTOGGLE) + if (key->keycode == KEY_KBDILLUMTOGGLE) { dell_laptop_call_notifier( DELL_LAPTOP_KBD_BACKLIGHT_BRIGHTNESS_CHANGED, NULL); + } else if (type == 0x0011 && code == 0xe070 && remaining > 0) { + value = !buffer[0]; + used = 1; + } + + sparse_keymap_report_entry(priv->input_dev, key, value, true); - sparse_keymap_report_entry(priv->input_dev, key, 1, true); + return used; } static void dell_wmi_notify(struct wmi_device *wdev, @@ -430,21 +441,26 @@ static void dell_wmi_notify(struct wmi_device *wdev, case 0x0000: /* One key pressed or event occurred */ if (len > 2) dell_wmi_process_key(wdev, buffer_entry[1], - buffer_entry[2]); + buffer_entry[2], + buffer_entry + 3, + len - 3); /* Extended data is currently ignored */ break; case 0x0010: /* Sequence of keys pressed */ case 0x0011: /* Sequence of events occurred */ for (i = 2; i < len; ++i) - dell_wmi_process_key(wdev, buffer_entry[1], - buffer_entry[i]); + i += dell_wmi_process_key(wdev, buffer_entry[1], + buffer_entry[i], + buffer_entry + i, + len - i - 1); break; case 0x0012: if ((len > 4) && dell_privacy_process_event(buffer_entry[1], buffer_entry[3], buffer_entry[4])) /* dell_privacy_process_event has handled the event */; else if (len > 2) - dell_wmi_process_key(wdev, buffer_entry[1], buffer_entry[2]); + dell_wmi_process_key(wdev, buffer_entry[1], buffer_entry[2], + buffer_entry + 3, len - 3); break; default: /* Unknown event */ pr_info("Unknown WMI event type 0x%x\n", -- 2.30.2