From mboxrd@z Thu Jan 1 00:00:00 1970 From: Corentin Chary Subject: [PATCH 03/16] eeepc-wmi: Add support for T101MT Home/Express Gate key Date: Fri, 1 Jul 2011 11:34:28 +0200 Message-ID: <1309512881-2901-4-git-send-email-corentin.chary@gmail.com> References: <1309512881-2901-1-git-send-email-corentin.chary@gmail.com> Return-path: In-Reply-To: <1309512881-2901-1-git-send-email-corentin.chary@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: platform-driver-x86@vger.kernel.org Cc: Seth Forshee , Corentin Chary , Corentin Chary , Matthew Garrett , "open list:ASUS NOTEBOOKS AN..." , open list List-Id: platform-driver-x86.vger.kernel.org From: Seth Forshee This key is different than other hotkeys, having seperate scan codes for press, release, and hold, so it requires some special filtering. Press and release events are passed on, and hold events are ignored since sparse-keymap does not support hardware autorepeat. Note that "Home" in the context of this button doesn't mean the same thing as the usual Home key, and it really isn't clear at all what is meant by "Home". The manufacurer's description of the button indicates that it should launch some sort of touch screen settings interface on short press and apply a desktop rotation on long press. Signed-off-by: Seth Forshee Signed-off-by: Corentin Chary --- drivers/platform/x86/eeepc-wmi.c | 26 ++++++++++++++++++++++++++ 1 files changed, 26 insertions(+), 0 deletions(-) diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c index 4aa867a..f41a977 100644 --- a/drivers/platform/x86/eeepc-wmi.c +++ b/drivers/platform/x86/eeepc-wmi.c @@ -56,6 +56,11 @@ MODULE_PARM_DESC(hotplug_wireless, "If your laptop needs that, please report to " "acpi4asus-user@lists.sourceforge.net."); +/* Values for T101MT "Home" key */ +#define HOME_PRESS 0xe4 +#define HOME_HOLD 0xea +#define HOME_RELEASE 0xe5 + static const struct key_entry eeepc_wmi_keymap[] = { /* Sleep already handled via generic ACPI code */ { KE_KEY, 0x30, { KEY_VOLUMEUP } }, @@ -71,6 +76,7 @@ static const struct key_entry eeepc_wmi_keymap[] = { { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } }, { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */ { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */ + { KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */ { KE_KEY, 0xe8, { KEY_SCREENLOCK } }, { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } }, { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } }, @@ -81,6 +87,25 @@ static const struct key_entry eeepc_wmi_keymap[] = { { KE_END, 0}, }; +static void eeepc_wmi_key_filter(struct asus_wmi_driver *asus_wmi, int *code, + unsigned int *value, bool *autorelease) +{ + switch (*code) { + case HOME_PRESS: + *value = 1; + *autorelease = 0; + break; + case HOME_HOLD: + *code = ASUS_WMI_KEY_IGNORE; + break; + case HOME_RELEASE: + *code = HOME_PRESS; + *value = 0; + *autorelease = 0; + break; + } +} + static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level, void *context, void **retval) { @@ -151,6 +176,7 @@ static struct asus_wmi_driver asus_wmi_driver = { .keymap = eeepc_wmi_keymap, .input_name = "Eee PC WMI hotkeys", .input_phys = EEEPC_WMI_FILE "/input0", + .key_filter = eeepc_wmi_key_filter, .probe = eeepc_wmi_probe, .quirks = eeepc_wmi_quirks, }; -- 1.7.3.4