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Old 11-19-2010, 06:16 PM
Colin King
 
Default UBUNTU: SAUCE: Add WMI hotkeys support for Dell All-In-One series

From: Colin Ian King <colin.king@canonical.com>

Enable WMI hotkeys on event GUID 284A0E6B-380E-472A-921F-E52786257FB4. This driver
enables the volume up and down keys.

BugLink: http://bugs.launchpad.net/bugs/676997

Signed-off-by: Eric Miao <eric.miao@canonical.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/platform/x86/Kconfig | 12 ++
drivers/platform/x86/Makefile | 1 +
drivers/platform/x86/dell-wmi-aio.c | 221 +++++++++++++++++++++++++++++++++++
3 files changed, 234 insertions(+), 0 deletions(-)
create mode 100644 drivers/platform/x86/dell-wmi-aio.c

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 3c02cf2..7730b4d 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -97,6 +97,18 @@ config DELL_WMI
To compile this driver as a module, choose M here: the module will
be called dell-wmi.

+config DELL_WMI_AIO
+ tristate "WMI Hotkeys for Dell All-In-One series"
+ depends on ACPI_WMI
+ depends on INPUT
+ ---help---
+ Say Y here if you want to support WMI-based hotkeys on Dell
+ All-In-One machines.
+
+ To compile this driver as a module, choose M here: the module will
+ be called dell-wmi.
+
+
config FUJITSU_LAPTOP
tristate "Fujitsu Laptop Extras"
depends on ACPI
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 7318fc2..590a8ba 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_ACPI_CMPC) += classmate-laptop.o
obj-$(CONFIG_COMPAL_LAPTOP) += compal-laptop.o
obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o
obj-$(CONFIG_DELL_WMI) += dell-wmi.o
+obj-$(CONFIG_DELL_WMI_AIO) += dell-wmi-aio.o
obj-$(CONFIG_ACER_WMI) += acer-wmi.o
obj-$(CONFIG_ACERHDF) += acerhdf.o
obj-$(CONFIG_HP_WMI) += hp-wmi.o
diff --git a/drivers/platform/x86/dell-wmi-aio.c b/drivers/platform/x86/dell-wmi-aio.c
new file mode 100644
index 0000000..5e2bc18
--- /dev/null
+++ b/drivers/platform/x86/dell-wmi-aio.c
@@ -0,0 +1,221 @@
+/*
+ * WMI hotkeys support for Dell All-In-One series
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <acpi/acpi_drivers.h>
+#include <linux/acpi.h>
+#include <linux/string.h>
+
+#define AIO_PREFIX "dell-wmi-aio: "
+
+MODULE_DESCRIPTION("WMI hotkeys driver for Dell All-In-One series");
+MODULE_LICENSE("GPL");
+
+#define EVENT_GUID "284A0E6B-380E-472A-921F-E52786257FB4"
+
+MODULE_ALIAS("wmi:"EVENT_GUID);
+
+/* Temporary workaround until the WMI sysfs interface goes in.
+ Borrowed from acer-wmi */
+MODULE_ALIAS("dmi:*:*Dell*:*:");
+
+struct key_entry {
+ char type; /* See KE_* below */
+ u16 code;
+ u16 keycode;
+};
+
+enum { KE_KEY, KE_SW, KE_IGNORE, KE_END };
+
+/*
+ * Certain keys are flagged as KE_IGNORE. All of these are either
+ * notifications (rather than requests for change) or are also sent
+ * via the keyboard controller so should not be sent again.
+ */
+
+static struct key_entry dell_wmi_aio_keymap[] = {
+ { KE_KEY, 0xc0, KEY_VOLUMEUP },
+ { KE_KEY, 0xc1, KEY_VOLUMEDOWN },
+ { KE_END, 0 }
+};
+
+static struct input_dev *dell_wmi_aio_input_dev;
+
+static struct key_entry *dell_wmi_aio_get_entry_by_scancode(int code)
+{
+ struct key_entry *key;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++)
+ if (code == key->code)
+ return key;
+
+ return NULL;
+}
+
+static struct key_entry *dell_wmi_aio_get_entry_by_keycode(int keycode)
+{
+ struct key_entry *key;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++)
+ if (key->type == KE_KEY && keycode == key->keycode)
+ return key;
+
+ return NULL;
+}
+
+static int dell_wmi_aio_getkeycode(struct input_dev *dev, int scancode,
+ int *keycode)
+{
+ struct key_entry *key = dell_wmi_aio_get_entry_by_scancode(scancode);
+
+ if (key && key->type == KE_KEY) {
+ *keycode = key->keycode;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int dell_wmi_aio_setkeycode(struct input_dev *dev, int scancode, int keycode)
+{
+ struct key_entry *key;
+ int old_keycode;
+
+ if (keycode < 0 || keycode > KEY_MAX)
+ return -EINVAL;
+
+ key = dell_wmi_aio_get_entry_by_scancode(scancode);
+ if (key && key->type == KE_KEY) {
+ old_keycode = key->keycode;
+ key->keycode = keycode;
+ set_bit(keycode, dev->keybit);
+ if (!dell_wmi_aio_get_entry_by_keycode(old_keycode))
+ clear_bit(old_keycode, dev->keybit);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static void dell_wmi_aio_notify(u32 value, void *context)
+{
+ struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+ static struct key_entry *key;
+ union acpi_object *obj;
+ acpi_status status;
+
+ status = wmi_get_event_data(value, &response);
+ if (status != AE_OK) {
+ pr_info(AIO_PREFIX "bad event status 0x%x
", status);
+ return;
+ }
+
+ obj = (union acpi_object *)response.pointer;
+
+ if (obj && obj->type == ACPI_TYPE_INTEGER) {
+ int scancode = obj->integer.value;
+
+ key = dell_wmi_aio_get_entry_by_scancode(scancode);
+ if (key) {
+ input_report_key(dell_wmi_aio_input_dev, key->keycode, 1);
+ input_sync(dell_wmi_aio_input_dev);
+ input_report_key(dell_wmi_aio_input_dev, key->keycode, 0);
+ input_sync(dell_wmi_aio_input_dev);
+ } else if (scancode)
+ pr_info(AIO_PREFIX "Unknown key %x pressed
", scancode);
+ }
+ kfree(obj);
+}
+
+static int __init dell_wmi_aio_input_setup(void)
+{
+ struct key_entry *key;
+ int err;
+
+ dell_wmi_aio_input_dev = input_allocate_device();
+
+ if (!dell_wmi_aio_input_dev)
+ return -ENOMEM;
+
+ dell_wmi_aio_input_dev->name = "Dell AIO WMI hotkeys";
+ dell_wmi_aio_input_dev->phys = "wmi/input0";
+ dell_wmi_aio_input_dev->id.bustype = BUS_HOST;
+ dell_wmi_aio_input_dev->getkeycode = dell_wmi_aio_getkeycode;
+ dell_wmi_aio_input_dev->setkeycode = dell_wmi_aio_setkeycode;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++) {
+ switch (key->type) {
+ case KE_KEY:
+ set_bit(EV_KEY, dell_wmi_aio_input_dev->evbit);
+ set_bit(key->keycode, dell_wmi_aio_input_dev->keybit);
+ break;
+ case KE_SW:
+ set_bit(EV_SW, dell_wmi_aio_input_dev->evbit);
+ set_bit(key->keycode, dell_wmi_aio_input_dev->swbit);
+ break;
+ }
+ }
+
+ err = input_register_device(dell_wmi_aio_input_dev);
+
+ if (err) {
+ input_free_device(dell_wmi_aio_input_dev);
+ return err;
+ }
+
+ return 0;
+}
+
+static int __init dell_wmi_aio_init(void)
+{
+ int err;
+
+ if (wmi_has_guid(EVENT_GUID)) {
+ err = dell_wmi_aio_input_setup();
+
+ if (err)
+ return err;
+
+ err = wmi_install_notify_handler(EVENT_GUID,
+ dell_wmi_aio_notify, NULL);
+ if (err) {
+ input_unregister_device(dell_wmi_aio_input_dev);
+ pr_err(AIO_PREFIX "Unable to register"
+ " notify handler - %d
", err);
+ return err;
+ }
+
+ } else
+ pr_warning(AIO_PREFIX "No known WMI GUID found
");
+
+ return 0;
+}
+
+static void __exit dell_wmi_aio_exit(void)
+{
+ if (wmi_has_guid(EVENT_GUID)) {
+ wmi_remove_notify_handler(EVENT_GUID);
+ input_unregister_device(dell_wmi_aio_input_dev);
+ }
+}
+
+module_init(dell_wmi_aio_init);
+module_exit(dell_wmi_aio_exit);
--
1.7.0.4


--
kernel-team mailing list
kernel-team@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/kernel-team
 
Old 11-21-2010, 11:31 AM
Eric Miao
 
Default UBUNTU: SAUCE: Add WMI hotkeys support for Dell All-In-One series

On Sat, Nov 20, 2010 at 3:16 AM, Colin King <colin.king@canonical.com> wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> Enable WMI hotkeys on event GUID 284A0E6B-380E-472A-921F-E52786257FB4. This driver
> enables the volume up and down keys.
>
> BugLink: http://bugs.launchpad.net/bugs/676997
>
> Signed-off-by: Eric Miao <eric.miao@canonical.com>
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Looks good. Acked.

> ---
> *drivers/platform/x86/Kconfig * * * *| * 12 ++
> *drivers/platform/x86/Makefile * * * | * *1 +
> *drivers/platform/x86/dell-wmi-aio.c | *221 +++++++++++++++++++++++++++++++++++
> *3 files changed, 234 insertions(+), 0 deletions(-)
> *create mode 100644 drivers/platform/x86/dell-wmi-aio.c
>
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index 3c02cf2..7730b4d 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -97,6 +97,18 @@ config DELL_WMI
> * * * * *To compile this driver as a module, choose M here: the module will
> * * * * *be called dell-wmi.
>
> +config DELL_WMI_AIO
> + * * * tristate "WMI Hotkeys for Dell All-In-One series"
> + * * * depends on ACPI_WMI
> + * * * depends on INPUT
> + * * * ---help---
> + * * * * Say Y here if you want to support WMI-based hotkeys on Dell
> + * * * * All-In-One machines.
> +
> + * * * * To compile this driver as a module, choose M here: the module will
> + * * * * be called dell-wmi.
> +
> +
> *config FUJITSU_LAPTOP
> * * * *tristate "Fujitsu Laptop Extras"
> * * * *depends on ACPI
> diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
> index 7318fc2..590a8ba 100644
> --- a/drivers/platform/x86/Makefile
> +++ b/drivers/platform/x86/Makefile
> @@ -10,6 +10,7 @@ obj-$(CONFIG_ACPI_CMPC) * * * * * * * += classmate-laptop.o
> *obj-$(CONFIG_COMPAL_LAPTOP) * *+= compal-laptop.o
> *obj-$(CONFIG_DELL_LAPTOP) * * *+= dell-laptop.o
> *obj-$(CONFIG_DELL_WMI) * * * * += dell-wmi.o
> +obj-$(CONFIG_DELL_WMI_AIO) * * += dell-wmi-aio.o
> *obj-$(CONFIG_ACER_WMI) * * * * += acer-wmi.o
> *obj-$(CONFIG_ACERHDF) * * * * *+= acerhdf.o
> *obj-$(CONFIG_HP_WMI) * * * * * += hp-wmi.o
> diff --git a/drivers/platform/x86/dell-wmi-aio.c b/drivers/platform/x86/dell-wmi-aio.c
> new file mode 100644
> index 0000000..5e2bc18
> --- /dev/null
> +++ b/drivers/platform/x86/dell-wmi-aio.c
> @@ -0,0 +1,221 @@
> +/*
> + * *WMI hotkeys support for Dell All-In-One series
> + *
> + * *This program is free software; you can redistribute it and/or modify
> + * *it under the terms of the GNU General Public License as published by
> + * *the Free Software Foundation; either version 2 of the License, or
> + * *(at your option) any later version.
> + *
> + * *This program is distributed in the hope that it will be useful,
> + * *but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * *MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *See the
> + * *GNU General Public License for more details.
> + *
> + * *You should have received a copy of the GNU General Public License
> + * *along with this program; if not, write to the Free Software
> + * *Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA *02111-1307 *USA
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/init.h>
> +#include <linux/types.h>
> +#include <linux/input.h>
> +#include <acpi/acpi_drivers.h>
> +#include <linux/acpi.h>
> +#include <linux/string.h>
> +
> +#define AIO_PREFIX * * "dell-wmi-aio: "
> +
> +MODULE_DESCRIPTION("WMI hotkeys driver for Dell All-In-One series");
> +MODULE_LICENSE("GPL");
> +
> +#define EVENT_GUID * * "284A0E6B-380E-472A-921F-E52786257FB4"
> +
> +MODULE_ALIAS("wmi:"EVENT_GUID);
> +
> +/* Temporary workaround until the WMI sysfs interface goes in.
> + * Borrowed from acer-wmi */
> +MODULE_ALIAS("dmi:*:*Dell*:*:");
> +
> +struct key_entry {
> + * * * char type; * * * * * * */* See KE_* below */
> + * * * u16 code;
> + * * * u16 keycode;
> +};
> +
> +enum { KE_KEY, KE_SW, KE_IGNORE, KE_END };
> +
> +/*
> + * Certain keys are flagged as KE_IGNORE. All of these are either
> + * notifications (rather than requests for change) or are also sent
> + * via the keyboard controller so should not be sent again.
> + */
> +
> +static struct key_entry dell_wmi_aio_keymap[] = {
> + * * * { KE_KEY, 0xc0, KEY_VOLUMEUP },
> + * * * { KE_KEY, 0xc1, KEY_VOLUMEDOWN },
> + * * * { KE_END, 0 }
> +};
> +
> +static struct input_dev *dell_wmi_aio_input_dev;
> +
> +static struct key_entry *dell_wmi_aio_get_entry_by_scancode(int code)
> +{
> + * * * struct key_entry *key;
> +
> + * * * for (key = dell_wmi_aio_keymap; key->type != KE_END; key++)
> + * * * * * * * if (code == key->code)
> + * * * * * * * * * * * return key;
> +
> + * * * return NULL;
> +}
> +
> +static struct key_entry *dell_wmi_aio_get_entry_by_keycode(int keycode)
> +{
> + * * * struct key_entry *key;
> +
> + * * * for (key = dell_wmi_aio_keymap; key->type != KE_END; key++)
> + * * * * * * * if (key->type == KE_KEY && keycode == key->keycode)
> + * * * * * * * * * * * return key;
> +
> + * * * return NULL;
> +}
> +
> +static int dell_wmi_aio_getkeycode(struct input_dev *dev, int scancode,
> + * * * * * * * * * * * * * * *int *keycode)
> +{
> + * * * struct key_entry *key = dell_wmi_aio_get_entry_by_scancode(scancode);
> +
> + * * * if (key && key->type == KE_KEY) {
> + * * * * * * * *keycode = key->keycode;
> + * * * * * * * return 0;
> + * * * }
> +
> + * * * return -EINVAL;
> +}
> +
> +static int dell_wmi_aio_setkeycode(struct input_dev *dev, int scancode, int keycode)
> +{
> + * * * struct key_entry *key;
> + * * * int old_keycode;
> +
> + * * * if (keycode < 0 || keycode > KEY_MAX)
> + * * * * * * * return -EINVAL;
> +
> + * * * key = dell_wmi_aio_get_entry_by_scancode(scancode);
> + * * * if (key && key->type == KE_KEY) {
> + * * * * * * * old_keycode = key->keycode;
> + * * * * * * * key->keycode = keycode;
> + * * * * * * * set_bit(keycode, dev->keybit);
> + * * * * * * * if (!dell_wmi_aio_get_entry_by_keycode(old_keycode))
> + * * * * * * * * * * * clear_bit(old_keycode, dev->keybit);
> + * * * * * * * return 0;
> + * * * }
> + * * * return -EINVAL;
> +}
> +
> +static void dell_wmi_aio_notify(u32 value, void *context)
> +{
> + * * * struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
> + * * * static struct key_entry *key;
> + * * * union acpi_object *obj;
> + * * * acpi_status status;
> +
> + * * * status = wmi_get_event_data(value, &response);
> + * * * if (status != AE_OK) {
> + * * * * * * * pr_info(AIO_PREFIX "bad event status 0x%x
", status);
> + * * * * * * * return;
> + * * * }
> +
> + * * * obj = (union acpi_object *)response.pointer;
> +
> + * * * if (obj && obj->type == ACPI_TYPE_INTEGER) {
> + * * * * * * * int scancode = obj->integer.value;
> +
> + * * * * * * * key = dell_wmi_aio_get_entry_by_scancode(scancode);
> + * * * * * * * if (key) {
> + * * * * * * * * * * * input_report_key(dell_wmi_aio_input_dev, key->keycode, 1);
> + * * * * * * * * * * * input_sync(dell_wmi_aio_input_dev);
> + * * * * * * * * * * * input_report_key(dell_wmi_aio_input_dev, key->keycode, 0);
> + * * * * * * * * * * * input_sync(dell_wmi_aio_input_dev);
> + * * * * * * * } else if (scancode)
> + * * * * * * * * * * * pr_info(AIO_PREFIX "Unknown key %x pressed
", scancode);
> + * * * }
> + * * * kfree(obj);
> +}
> +
> +static int __init dell_wmi_aio_input_setup(void)
> +{
> + * * * struct key_entry *key;
> + * * * int err;
> +
> + * * * dell_wmi_aio_input_dev = input_allocate_device();
> +
> + * * * if (!dell_wmi_aio_input_dev)
> + * * * * * * * return -ENOMEM;
> +
> + * * * dell_wmi_aio_input_dev->name = "Dell AIO WMI hotkeys";
> + * * * dell_wmi_aio_input_dev->phys = "wmi/input0";
> + * * * dell_wmi_aio_input_dev->id.bustype = BUS_HOST;
> + * * * dell_wmi_aio_input_dev->getkeycode = dell_wmi_aio_getkeycode;
> + * * * dell_wmi_aio_input_dev->setkeycode = dell_wmi_aio_setkeycode;
> +
> + * * * for (key = dell_wmi_aio_keymap; key->type != KE_END; key++) {
> + * * * * * * * switch (key->type) {
> + * * * * * * * case KE_KEY:
> + * * * * * * * * * * * set_bit(EV_KEY, dell_wmi_aio_input_dev->evbit);
> + * * * * * * * * * * * set_bit(key->keycode, dell_wmi_aio_input_dev->keybit);
> + * * * * * * * * * * * break;
> + * * * * * * * case KE_SW:
> + * * * * * * * * * * * set_bit(EV_SW, dell_wmi_aio_input_dev->evbit);
> + * * * * * * * * * * * set_bit(key->keycode, dell_wmi_aio_input_dev->swbit);
> + * * * * * * * * * * * break;
> + * * * * * * * }
> + * * * }
> +
> + * * * err = input_register_device(dell_wmi_aio_input_dev);
> +
> + * * * if (err) {
> + * * * * * * * input_free_device(dell_wmi_aio_input_dev);
> + * * * * * * * return err;
> + * * * }
> +
> + * * * return 0;
> +}
> +
> +static int __init dell_wmi_aio_init(void)
> +{
> + * * * int err;
> +
> + * * * if (wmi_has_guid(EVENT_GUID)) {
> + * * * * * * * err = dell_wmi_aio_input_setup();
> +
> + * * * * * * * if (err)
> + * * * * * * * * * * * return err;
> +
> + * * * * * * * err = wmi_install_notify_handler(EVENT_GUID,
> + * * * * * * * * * * * * * * * * * * * * * * * *dell_wmi_aio_notify, NULL);
> + * * * * * * * if (err) {
> + * * * * * * * * * * * input_unregister_device(dell_wmi_aio_input_dev);
> + * * * * * * * * * * * pr_err(AIO_PREFIX "Unable to register"
> + * * * * * * * * * * * * * * *" notify handler - %d
", err);
> + * * * * * * * * * * * return err;
> + * * * * * * * }
> +
> + * * * } else
> + * * * * * * * pr_warning(AIO_PREFIX "No known WMI GUID found
");
> +
> + * * * return 0;
> +}
> +
> +static void __exit dell_wmi_aio_exit(void)
> +{
> + * * * if (wmi_has_guid(EVENT_GUID)) {
> + * * * * * * * wmi_remove_notify_handler(EVENT_GUID);
> + * * * * * * * input_unregister_device(dell_wmi_aio_input_dev);
> + * * * }
> +}
> +
> +module_init(dell_wmi_aio_init);
> +module_exit(dell_wmi_aio_exit);
> --
> 1.7.0.4
>
>
> --
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> kernel-team@lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
>

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Old 11-24-2010, 05:53 PM
Colin Ian King
 
Default UBUNTU: SAUCE: Add WMI hotkeys support for Dell All-In-One series

Enable WMI hotkeys on event GUID 284A0E6B-380E-472A-921F-E52786257FB4. This driver
enables the volume up and down keys.

BugLink: http://bugs.launchpad.net/bugs/676997

Signed-off-by: Eric Miao <eric.miao@canonical.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/platform/x86/Kconfig | 12 ++
drivers/platform/x86/Makefile | 1 +
drivers/platform/x86/dell-wmi-aio.c | 225 +++++++++++++++++++++++++++++++++++
3 files changed, 238 insertions(+), 0 deletions(-)
create mode 100644 drivers/platform/x86/dell-wmi-aio.c

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 3c02cf2..7730b4d 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -97,6 +97,18 @@ config DELL_WMI
To compile this driver as a module, choose M here: the module will
be called dell-wmi.

+config DELL_WMI_AIO
+ tristate "WMI Hotkeys for Dell All-In-One series"
+ depends on ACPI_WMI
+ depends on INPUT
+ ---help---
+ Say Y here if you want to support WMI-based hotkeys on Dell
+ All-In-One machines.
+
+ To compile this driver as a module, choose M here: the module will
+ be called dell-wmi.
+
+
config FUJITSU_LAPTOP
tristate "Fujitsu Laptop Extras"
depends on ACPI
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 7318fc2..590a8ba 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_ACPI_CMPC) += classmate-laptop.o
obj-$(CONFIG_COMPAL_LAPTOP) += compal-laptop.o
obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o
obj-$(CONFIG_DELL_WMI) += dell-wmi.o
+obj-$(CONFIG_DELL_WMI_AIO) += dell-wmi-aio.o
obj-$(CONFIG_ACER_WMI) += acer-wmi.o
obj-$(CONFIG_ACERHDF) += acerhdf.o
obj-$(CONFIG_HP_WMI) += hp-wmi.o
diff --git a/drivers/platform/x86/dell-wmi-aio.c b/drivers/platform/x86/dell-wmi-aio.c
new file mode 100644
index 0000000..c693473
--- /dev/null
+++ b/drivers/platform/x86/dell-wmi-aio.c
@@ -0,0 +1,225 @@
+/*
+ * WMI hotkeys support for Dell All-In-One series
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <acpi/acpi_drivers.h>
+#include <linux/acpi.h>
+#include <linux/string.h>
+
+#define AIO_PREFIX "dell-wmi-aio: "
+
+MODULE_DESCRIPTION("WMI hotkeys driver for Dell All-In-One series");
+MODULE_LICENSE("GPL");
+
+#define EVENT_GUID "284A0E6B-380E-472A-921F-E52786257FB4"
+
+MODULE_ALIAS("wmi:"EVENT_GUID);
+
+/* Temporary workaround until the WMI sysfs interface goes in.
+ Borrowed from acer-wmi */
+MODULE_ALIAS("dmi:*:*Dell*:*:");
+
+struct key_entry {
+ char type; /* See KE_* below */
+ u16 code;
+ u16 keycode;
+};
+
+enum { KE_KEY, KE_SW, KE_IGNORE, KE_END };
+
+/*
+ * Certain keys are flagged as KE_IGNORE. All of these are either
+ * notifications (rather than requests for change) or are also sent
+ * via the keyboard controller so should not be sent again.
+ */
+
+static struct key_entry dell_wmi_aio_keymap[] = {
+ { KE_KEY, 0xc0, KEY_VOLUMEUP },
+ { KE_KEY, 0xc1, KEY_VOLUMEDOWN },
+ { KE_END, 0 }
+};
+
+static struct input_dev *dell_wmi_aio_input_dev;
+
+static struct key_entry *dell_wmi_aio_get_entry_by_scancode(int code)
+{
+ struct key_entry *key;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++)
+ if (code == key->code)
+ return key;
+
+ return NULL;
+}
+
+static struct key_entry *dell_wmi_aio_get_entry_by_keycode(int keycode)
+{
+ struct key_entry *key;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++)
+ if (key->type == KE_KEY && keycode == key->keycode)
+ return key;
+
+ return NULL;
+}
+
+static int dell_wmi_aio_getkeycode(struct input_dev *dev, int scancode,
+ int *keycode)
+{
+ struct key_entry *key = dell_wmi_aio_get_entry_by_scancode(scancode);
+
+ if (key && key->type == KE_KEY) {
+ *keycode = key->keycode;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int dell_wmi_aio_setkeycode(struct input_dev *dev, int scancode,
+ int keycode)
+{
+ struct key_entry *key;
+ int old_keycode;
+
+ if (keycode < 0 || keycode > KEY_MAX)
+ return -EINVAL;
+
+ key = dell_wmi_aio_get_entry_by_scancode(scancode);
+ if (key && key->type == KE_KEY) {
+ old_keycode = key->keycode;
+ key->keycode = keycode;
+ set_bit(keycode, dev->keybit);
+ if (!dell_wmi_aio_get_entry_by_keycode(old_keycode))
+ clear_bit(old_keycode, dev->keybit);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static void dell_wmi_aio_notify(u32 value, void *context)
+{
+ struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+ static struct key_entry *key;
+ union acpi_object *obj;
+ acpi_status status;
+
+ status = wmi_get_event_data(value, &response);
+ if (status != AE_OK) {
+ pr_info(AIO_PREFIX "bad event status 0x%x
", status);
+ return;
+ }
+
+ obj = (union acpi_object *)response.pointer;
+
+ if (obj && obj->type == ACPI_TYPE_INTEGER) {
+ int scancode = obj->integer.value;
+
+ key = dell_wmi_aio_get_entry_by_scancode(scancode);
+ if (key) {
+ input_report_key(dell_wmi_aio_input_dev,
+ key->keycode, 1);
+ input_sync(dell_wmi_aio_input_dev);
+ input_report_key(dell_wmi_aio_input_dev,
+ key->keycode, 0);
+ input_sync(dell_wmi_aio_input_dev);
+ } else if (scancode)
+ pr_info(AIO_PREFIX "Unknown key %x pressed
",
+ scancode);
+ }
+ kfree(obj);
+}
+
+static int __init dell_wmi_aio_input_setup(void)
+{
+ struct key_entry *key;
+ int err;
+
+ dell_wmi_aio_input_dev = input_allocate_device();
+
+ if (!dell_wmi_aio_input_dev)
+ return -ENOMEM;
+
+ dell_wmi_aio_input_dev->name = "Dell AIO WMI hotkeys";
+ dell_wmi_aio_input_dev->phys = "wmi/input0";
+ dell_wmi_aio_input_dev->id.bustype = BUS_HOST;
+ dell_wmi_aio_input_dev->getkeycode = dell_wmi_aio_getkeycode;
+ dell_wmi_aio_input_dev->setkeycode = dell_wmi_aio_setkeycode;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++) {
+ switch (key->type) {
+ case KE_KEY:
+ set_bit(EV_KEY, dell_wmi_aio_input_dev->evbit);
+ set_bit(key->keycode, dell_wmi_aio_input_dev->keybit);
+ break;
+ case KE_SW:
+ set_bit(EV_SW, dell_wmi_aio_input_dev->evbit);
+ set_bit(key->keycode, dell_wmi_aio_input_dev->swbit);
+ break;
+ }
+ }
+
+ err = input_register_device(dell_wmi_aio_input_dev);
+
+ if (err) {
+ input_free_device(dell_wmi_aio_input_dev);
+ return err;
+ }
+
+ return 0;
+}
+
+static int __init dell_wmi_aio_init(void)
+{
+ int err;
+
+ if (wmi_has_guid(EVENT_GUID)) {
+ err = dell_wmi_aio_input_setup();
+
+ if (err)
+ return err;
+
+ err = wmi_install_notify_handler(EVENT_GUID,
+ dell_wmi_aio_notify, NULL);
+ if (err) {
+ input_unregister_device(dell_wmi_aio_input_dev);
+ pr_err(AIO_PREFIX "Unable to register"
+ " notify handler - %d
", err);
+ return err;
+ }
+
+ } else
+ pr_warning(AIO_PREFIX "No known WMI GUID found
");
+
+ return 0;
+}
+
+static void __exit dell_wmi_aio_exit(void)
+{
+ if (wmi_has_guid(EVENT_GUID)) {
+ wmi_remove_notify_handler(EVENT_GUID);
+ input_unregister_device(dell_wmi_aio_input_dev);
+ }
+}
+
+module_init(dell_wmi_aio_init);
+module_exit(dell_wmi_aio_exit);
--
1.7.0.4


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Old 11-27-2010, 06:27 PM
Matthew Garrett
 
Default UBUNTU: SAUCE: Add WMI hotkeys support for Dell All-In-One series

On Fri, Nov 19, 2010 at 07:16:46PM +0000, Colin King wrote:
> +#define EVENT_GUID "284A0E6B-380E-472A-921F-E52786257FB4"
> +
> +MODULE_ALIAS("wmi:"EVENT_GUID);
> +
> +/* Temporary workaround until the WMI sysfs interface goes in.
> + Borrowed from acer-wmi */
> +MODULE_ALIAS("dmi:*:*Dell*:*:");

The WMI sysfs interface is present. Do you really need this?

> +struct key_entry {
> + char type; /* See KE_* below */
> + u16 code;
> + u16 keycode;
> +};
> +
> +enum { KE_KEY, KE_SW, KE_IGNORE, KE_END };
>
> +/*
> + * Certain keys are flagged as KE_IGNORE. All of these are either
> + * notifications (rather than requests for change) or are also sent
> + * via the keyboard controller so should not be sent again.
> + */

No they're not

> +static struct key_entry dell_wmi_aio_keymap[] = {
> + { KE_KEY, 0xc0, KEY_VOLUMEUP },
> + { KE_KEY, 0xc1, KEY_VOLUMEDOWN },
> + { KE_END, 0 }
> +};

You ought to use sparse keymaps here. They'll let you get rid of a lot
of this boilerplate.

> + case KE_SW:
> + set_bit(EV_SW, dell_wmi_aio_input_dev->evbit);
> + set_bit(key->keycode, dell_wmi_aio_input_dev->swbit);
> + break;

There aren't any switches, and there's no interface to add one.

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Old 02-09-2011, 05:17 PM
Colin King
 
Default UBUNTU: SAUCE: Add WMI hotkeys support for Dell All-In-One series

From: Colin Ian King <colin.king@canonical.com>

Enable WMI hotkeys on event GUID 284A0E6B-380E-472A-921F-E52786257FB4. This driver
enables the volume up and down keys.

BugLink: http://bugs.launchpad.net/bugs/676997

Signed-off-by: Eric Miao <eric.miao@canonical.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
---
drivers/platform/x86/Kconfig | 12 ++
drivers/platform/x86/Makefile | 1 +
drivers/platform/x86/dell-wmi-aio.c | 225 +++++++++++++++++++++++++++++++++++
3 files changed, 238 insertions(+), 0 deletions(-)
create mode 100644 drivers/platform/x86/dell-wmi-aio.c

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index d163bc2..b6fbb0c 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -101,6 +101,18 @@ config DELL_WMI
To compile this driver as a module, choose M here: the module will
be called dell-wmi.

+config DELL_WMI_AIO
+ tristate "WMI Hotkeys for Dell All-In-One series"
+ depends on ACPI_WMI
+ depends on INPUT
+ ---help---
+ Say Y here if you want to support WMI-based hotkeys on Dell
+ All-In-One machines.
+
+ To compile this driver as a module, choose M here: the module will
+ be called dell-wmi.
+
+
config FUJITSU_LAPTOP
tristate "Fujitsu Laptop Extras"
depends on ACPI
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 4ec4ff8..26c6a57 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_ACPI_CMPC) += classmate-laptop.o
obj-$(CONFIG_COMPAL_LAPTOP) += compal-laptop.o
obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o
obj-$(CONFIG_DELL_WMI) += dell-wmi.o
+obj-$(CONFIG_DELL_WMI_AIO) += dell-wmi-aio.o
obj-$(CONFIG_ACER_WMI) += acer-wmi.o
obj-$(CONFIG_ACERHDF) += acerhdf.o
obj-$(CONFIG_HP_WMI) += hp-wmi.o
diff --git a/drivers/platform/x86/dell-wmi-aio.c b/drivers/platform/x86/dell-wmi-aio.c
new file mode 100644
index 0000000..c693473
--- /dev/null
+++ b/drivers/platform/x86/dell-wmi-aio.c
@@ -0,0 +1,225 @@
+/*
+ * WMI hotkeys support for Dell All-In-One series
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <acpi/acpi_drivers.h>
+#include <linux/acpi.h>
+#include <linux/string.h>
+
+#define AIO_PREFIX "dell-wmi-aio: "
+
+MODULE_DESCRIPTION("WMI hotkeys driver for Dell All-In-One series");
+MODULE_LICENSE("GPL");
+
+#define EVENT_GUID "284A0E6B-380E-472A-921F-E52786257FB4"
+
+MODULE_ALIAS("wmi:"EVENT_GUID);
+
+/* Temporary workaround until the WMI sysfs interface goes in.
+ Borrowed from acer-wmi */
+MODULE_ALIAS("dmi:*:*Dell*:*:");
+
+struct key_entry {
+ char type; /* See KE_* below */
+ u16 code;
+ u16 keycode;
+};
+
+enum { KE_KEY, KE_SW, KE_IGNORE, KE_END };
+
+/*
+ * Certain keys are flagged as KE_IGNORE. All of these are either
+ * notifications (rather than requests for change) or are also sent
+ * via the keyboard controller so should not be sent again.
+ */
+
+static struct key_entry dell_wmi_aio_keymap[] = {
+ { KE_KEY, 0xc0, KEY_VOLUMEUP },
+ { KE_KEY, 0xc1, KEY_VOLUMEDOWN },
+ { KE_END, 0 }
+};
+
+static struct input_dev *dell_wmi_aio_input_dev;
+
+static struct key_entry *dell_wmi_aio_get_entry_by_scancode(int code)
+{
+ struct key_entry *key;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++)
+ if (code == key->code)
+ return key;
+
+ return NULL;
+}
+
+static struct key_entry *dell_wmi_aio_get_entry_by_keycode(int keycode)
+{
+ struct key_entry *key;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++)
+ if (key->type == KE_KEY && keycode == key->keycode)
+ return key;
+
+ return NULL;
+}
+
+static int dell_wmi_aio_getkeycode(struct input_dev *dev, int scancode,
+ int *keycode)
+{
+ struct key_entry *key = dell_wmi_aio_get_entry_by_scancode(scancode);
+
+ if (key && key->type == KE_KEY) {
+ *keycode = key->keycode;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int dell_wmi_aio_setkeycode(struct input_dev *dev, int scancode,
+ int keycode)
+{
+ struct key_entry *key;
+ int old_keycode;
+
+ if (keycode < 0 || keycode > KEY_MAX)
+ return -EINVAL;
+
+ key = dell_wmi_aio_get_entry_by_scancode(scancode);
+ if (key && key->type == KE_KEY) {
+ old_keycode = key->keycode;
+ key->keycode = keycode;
+ set_bit(keycode, dev->keybit);
+ if (!dell_wmi_aio_get_entry_by_keycode(old_keycode))
+ clear_bit(old_keycode, dev->keybit);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static void dell_wmi_aio_notify(u32 value, void *context)
+{
+ struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+ static struct key_entry *key;
+ union acpi_object *obj;
+ acpi_status status;
+
+ status = wmi_get_event_data(value, &response);
+ if (status != AE_OK) {
+ pr_info(AIO_PREFIX "bad event status 0x%x
", status);
+ return;
+ }
+
+ obj = (union acpi_object *)response.pointer;
+
+ if (obj && obj->type == ACPI_TYPE_INTEGER) {
+ int scancode = obj->integer.value;
+
+ key = dell_wmi_aio_get_entry_by_scancode(scancode);
+ if (key) {
+ input_report_key(dell_wmi_aio_input_dev,
+ key->keycode, 1);
+ input_sync(dell_wmi_aio_input_dev);
+ input_report_key(dell_wmi_aio_input_dev,
+ key->keycode, 0);
+ input_sync(dell_wmi_aio_input_dev);
+ } else if (scancode)
+ pr_info(AIO_PREFIX "Unknown key %x pressed
",
+ scancode);
+ }
+ kfree(obj);
+}
+
+static int __init dell_wmi_aio_input_setup(void)
+{
+ struct key_entry *key;
+ int err;
+
+ dell_wmi_aio_input_dev = input_allocate_device();
+
+ if (!dell_wmi_aio_input_dev)
+ return -ENOMEM;
+
+ dell_wmi_aio_input_dev->name = "Dell AIO WMI hotkeys";
+ dell_wmi_aio_input_dev->phys = "wmi/input0";
+ dell_wmi_aio_input_dev->id.bustype = BUS_HOST;
+ dell_wmi_aio_input_dev->getkeycode = dell_wmi_aio_getkeycode;
+ dell_wmi_aio_input_dev->setkeycode = dell_wmi_aio_setkeycode;
+
+ for (key = dell_wmi_aio_keymap; key->type != KE_END; key++) {
+ switch (key->type) {
+ case KE_KEY:
+ set_bit(EV_KEY, dell_wmi_aio_input_dev->evbit);
+ set_bit(key->keycode, dell_wmi_aio_input_dev->keybit);
+ break;
+ case KE_SW:
+ set_bit(EV_SW, dell_wmi_aio_input_dev->evbit);
+ set_bit(key->keycode, dell_wmi_aio_input_dev->swbit);
+ break;
+ }
+ }
+
+ err = input_register_device(dell_wmi_aio_input_dev);
+
+ if (err) {
+ input_free_device(dell_wmi_aio_input_dev);
+ return err;
+ }
+
+ return 0;
+}
+
+static int __init dell_wmi_aio_init(void)
+{
+ int err;
+
+ if (wmi_has_guid(EVENT_GUID)) {
+ err = dell_wmi_aio_input_setup();
+
+ if (err)
+ return err;
+
+ err = wmi_install_notify_handler(EVENT_GUID,
+ dell_wmi_aio_notify, NULL);
+ if (err) {
+ input_unregister_device(dell_wmi_aio_input_dev);
+ pr_err(AIO_PREFIX "Unable to register"
+ " notify handler - %d
", err);
+ return err;
+ }
+
+ } else
+ pr_warning(AIO_PREFIX "No known WMI GUID found
");
+
+ return 0;
+}
+
+static void __exit dell_wmi_aio_exit(void)
+{
+ if (wmi_has_guid(EVENT_GUID)) {
+ wmi_remove_notify_handler(EVENT_GUID);
+ input_unregister_device(dell_wmi_aio_input_dev);
+ }
+}
+
+module_init(dell_wmi_aio_init);
+module_exit(dell_wmi_aio_exit);
--
1.7.2.3


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Old 02-10-2011, 10:04 PM
Matthew Garrett
 
Default UBUNTU: SAUCE: Add WMI hotkeys support for Dell All-In-One series

On Wed, Feb 09, 2011 at 06:17:53PM +0000, Colin King wrote:
> +/* Temporary workaround until the WMI sysfs interface goes in.
> + Borrowed from acer-wmi */
> +MODULE_ALIAS("dmi:*:*Dell*:*:");

Has been in for some time. I think the followup patches take care of the
other issues.

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Old 02-11-2011, 08:30 AM
Colin Ian King
 
Default UBUNTU: SAUCE: Add WMI hotkeys support for Dell All-In-One series

On Thu, 2011-02-10 at 23:04 +0000, Matthew Garrett wrote:
> On Wed, Feb 09, 2011 at 06:17:53PM +0000, Colin King wrote:
> > +/* Temporary workaround until the WMI sysfs interface goes in.
> > + Borrowed from acer-wmi */
> > +MODULE_ALIAS("dmi:*:*Dell*:*:");
>
> Has been in for some time. I think the followup patches take care of the
> other issues.

Thanks Matthew, any pointers to how this was fixed/taken care of?

Colin
>
> --
> Matthew Garrett | mjg59@srcf.ucam.org
>



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Old 02-11-2011, 01:06 PM
Matthew Garrett
 
Default UBUNTU: SAUCE: Add WMI hotkeys support for Dell All-In-One series

On Fri, Feb 11, 2011 at 09:30:46AM +0000, Colin Ian King wrote:
> On Thu, 2011-02-10 at 23:04 +0000, Matthew Garrett wrote:
> > On Wed, Feb 09, 2011 at 06:17:53PM +0000, Colin King wrote:
> > > +/* Temporary workaround until the WMI sysfs interface goes in.
> > > + Borrowed from acer-wmi */
> > > +MODULE_ALIAS("dmi:*:*Dell*:*:");
> >
> > Has been in for some time. I think the followup patches take care of the
> > other issues.
>
> Thanks Matthew, any pointers to how this was fixed/taken care of?

I think the sysfs code landed in .31 or so? WMI modaliases should Just
Work assuming the capitalisation is correct.

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