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Groups > linux.kernel > #1221590 > unrolled thread

[PATCH 1/1] toshiba_acpi: Remove unneeded u32 variables from *setup_keyboard

Started byAzael Avalos <coproscefalo@gmail.com>
First post2015-09-09 19:40 +0200
Last post2015-09-18 23:50 +0200
Articles 6 — 3 participants

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Contents

  [PATCH 1/1] toshiba_acpi: Remove unneeded u32 variables from *setup_keyboard Azael Avalos <coproscefalo@gmail.com> - 2015-09-09 19:40 +0200
    [PATCH] platform/x86: Toshiba WMI Hotkey Driver Azael Avalos <coproscefalo@gmail.com> - 2015-09-09 19:40 +0200
      Re: [PATCH] platform/x86: Toshiba WMI Hotkey Driver Darren Hart <dvhart@infradead.org> - 2015-09-19 00:00 +0200
        Re: [PATCH] platform/x86: Toshiba WMI Hotkey Driver Azael Avalos <coproscefalo@gmail.com> - 2015-09-19 06:30 +0200
        Re: [PATCH] platform/x86: Toshiba WMI Hotkey Driver Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-09-19 18:50 +0200
    Re: [PATCH 1/1] toshiba_acpi: Remove unneeded u32 variables from  *setup_keyboard Darren Hart <dvhart@infradead.org> - 2015-09-18 23:50 +0200

#1221590 — [PATCH 1/1] toshiba_acpi: Remove unneeded u32 variables from *setup_keyboard

FromAzael Avalos <coproscefalo@gmail.com>
Date2015-09-09 19:40 +0200
Subject[PATCH 1/1] toshiba_acpi: Remove unneeded u32 variables from *setup_keyboard
Message-ID<q6RvI-1rs-11@gated-at.bofh.it>
The function toshiba_acpi_setup_keyboard currently has two u32 variables
used to store the Hotkey Event Type and the result of the HCI_SYSTEM_EVENT
query.

This patch removes those two variables, as we already have a global
variable named "hotkey_event_type" and the result of the HCI_SYSTEM_EVENT
query can be checked directly from the function.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
---
 drivers/platform/x86/toshiba_acpi.c | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 803e967..9f7ced1 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -2381,8 +2381,6 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
 {
 	const struct key_entry *keymap = toshiba_acpi_keymap;
 	acpi_handle ec_handle;
-	u32 events_type;
-	u32 hci_result;
 	int error;
 
 	if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
@@ -2394,11 +2392,9 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
 	if (error)
 		return error;
 
-	if (toshiba_hotkey_event_type_get(dev, &events_type))
+	if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
 		pr_notice("Unable to query Hotkey Event Type\n");
 
-	dev->hotkey_event_type = events_type;
-
 	dev->hotkey_dev = input_allocate_device();
 	if (!dev->hotkey_dev)
 		return -ENOMEM;
@@ -2407,14 +2403,15 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
 	dev->hotkey_dev->phys = "toshiba_acpi/input0";
 	dev->hotkey_dev->id.bustype = BUS_HOST;
 
-	if (events_type == HCI_SYSTEM_TYPE1 ||
+	if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
 	    !dev->kbd_function_keys_supported)
 		keymap = toshiba_acpi_keymap;
-	else if (events_type == HCI_SYSTEM_TYPE2 ||
+	else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
 		 dev->kbd_function_keys_supported)
 		keymap = toshiba_acpi_alt_keymap;
 	else
-		pr_info("Unknown event type received %x\n", events_type);
+		pr_info("Unknown event type received %x\n",
+			dev->hotkey_event_type);
 	error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
 	if (error)
 		goto err_free_dev;
@@ -2443,12 +2440,10 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
 	 * Determine hotkey query interface. Prefer using the INFO
 	 * method when it is available.
 	 */
-	if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
+	if (acpi_has_method(dev->acpi_dev->handle, "INFO")) {
 		dev->info_supported = 1;
-	else {
-		hci_result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
-		if (hci_result == TOS_SUCCESS)
-			dev->system_event_supported = 1;
+	} else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
+		dev->system_event_supported = 1;
 	}
 
 	if (!dev->info_supported && !dev->system_event_supported) {
-- 
2.5.1

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#1221593 — [PATCH] platform/x86: Toshiba WMI Hotkey Driver

FromAzael Avalos <coproscefalo@gmail.com>
Date2015-09-09 19:40 +0200
Subject[PATCH] platform/x86: Toshiba WMI Hotkey Driver
Message-ID<q6RvI-1rs-25@gated-at.bofh.it>
In reply to#1221590
Toshiba laptops that feature WMI events for hotkeys were left unsupported
by the toshiba_acpi driver, however, commit a88bc06e5aec ("toshiba_acpi:
Avoid registering input device on WMI event laptops") added hardware
support for such laptops, but the hotkeys are not handled there.

This driver adds support for hotkey monitoring on certain Toshiba laptops
that manage the hotkeys via WMI events instead of the Toshiba
Configuration Interface (TCI).

The toshiba_acpi driver and this one can co-exist, as this only takes
care of hotkeys, while the propper takes care of hardware related stuff.

Currently the driver is under the EXPERIMENTAL flag, as the keymap
and the notify function are incomplete (due to lack of hardware to test).

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
---
 MAINTAINERS                        |   6 ++
 drivers/platform/x86/Kconfig       |  18 +++++
 drivers/platform/x86/Makefile      |   1 +
 drivers/platform/x86/toshiba-wmi.c | 138 +++++++++++++++++++++++++++++++++++++
 4 files changed, 163 insertions(+)
 create mode 100644 drivers/platform/x86/toshiba-wmi.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 884d398..07f4446 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10318,6 +10318,12 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/toshiba_haps.c
 
+TOSHIBA WMI HOTKEYS DRIVER
+M:	Azael Avalos <coproscefalo@gmail.com>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+F:	drivers/platform/x86/toshiba-wmi.c
+
 TOSHIBA SMM DRIVER
 M:	Jonathan Buzzard <jonathan@buzzard.org.uk>
 W:	http://www.buzzard.org.uk/toshiba/
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index c69bb70..9ae1e89 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -700,6 +700,24 @@ config TOSHIBA_HAPS
 	  If you have a recent Toshiba laptop with a built-in accelerometer
 	  device, say Y.
 
+config TOSHIBA_WMI
+	tristate "Toshiba WMI Hotkeys Driver (EXPERIMENTAL)"
+	default n
+	depends on ACPI_WMI
+	depends on INPUT
+	select INPUT_SPARSEKMAP
+	---help---
+	  This driver adds hotkey monitoring support to some Toshiba models
+	  that manage the hotkeys via WMI events.
+
+	  WARNING: This driver is incomplete as it lacks a propper keymap and the
+	  *notify function only prints the ACPI event type value. Be warned that
+	  you will need to provide some information if you have a Toshiba model
+	  with WMI event hotkeys and want to help with the develpment of this
+	  driver.
+
+	  If you have a WMI-based hotkeys Toshiba laptop, say Y or M here.
+
 config ACPI_CMPC
 	tristate "CMPC Laptop Extras"
 	depends on X86 && ACPI
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index ada5128..8f077cb 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -40,6 +40,7 @@ obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
 
 obj-$(CONFIG_TOSHIBA_BT_RFKILL)	+= toshiba_bluetooth.o
 obj-$(CONFIG_TOSHIBA_HAPS)	+= toshiba_haps.o
+obj-$(CONFIG_TOSHIBA_HAPS)	+= toshiba-wmi.o
 obj-$(CONFIG_INTEL_SCU_IPC)	+= intel_scu_ipc.o
 obj-$(CONFIG_INTEL_SCU_IPC_UTIL) += intel_scu_ipcutil.o
 obj-$(CONFIG_INTEL_MFLD_THERMAL) += intel_mid_thermal.o
diff --git a/drivers/platform/x86/toshiba-wmi.c b/drivers/platform/x86/toshiba-wmi.c
new file mode 100644
index 0000000..8cf62a1
--- /dev/null
+++ b/drivers/platform/x86/toshiba-wmi.c
@@ -0,0 +1,138 @@
+/*
+ * toshiba_wmi.c - Toshiba WMI Hotkey Driver
+ *
+ * Copyright (C) 2015 Azael Avalos <coproscefalo@gmail.com>
+ *
+ * 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.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/acpi.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+
+MODULE_AUTHOR("Azael Avalos");
+MODULE_DESCRIPTION("Toshiba WMI Hotkey Driver");
+MODULE_LICENSE("GPL");
+
+#define TOSHIBA_WMI_EVENT_GUID	"59142400-C6A3-40FA-BADB-8A2652834100"
+
+MODULE_ALIAS("wmi:"TOSHIBA_WMI_EVENT_GUID);
+
+struct input_dev *toshiba_wmi_input_dev;
+
+static const struct key_entry toshiba_wmi_keymap[] __initconst = {
+	/* TODO: Add keymap values once found... */
+	/*{ KE_KEY, 0x00, { KEY_ } },*/
+	{ KE_END, 0 }
+};
+
+static void toshiba_wmi_notify(u32 value, void *context)
+{
+	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+	acpi_status status;
+
+	status = wmi_get_event_data(value, &response);
+	if (ACPI_FAILURE(status)) {
+		pr_err("Bad event status 0x%x\n", status);
+		return;
+	}
+
+	obj = (union acpi_object *)response.pointer;
+	if (!obj)
+		return;
+
+	/* TODO: Add propper checks once we have data */
+	pr_info("Unknown event received, obj type %x\n", obj->type);
+
+	kfree(response.pointer);
+}
+
+static int __init toshiba_wmi_input_setup(void)
+{
+	acpi_status status;
+	int err;
+
+	toshiba_wmi_input_dev = input_allocate_device();
+	if (!toshiba_wmi_input_dev)
+		return -ENOMEM;
+
+	toshiba_wmi_input_dev->name = "Toshiba WMI hotkeys";
+	toshiba_wmi_input_dev->phys = "wmi/input0";
+	toshiba_wmi_input_dev->id.bustype = BUS_HOST;
+
+	err = sparse_keymap_setup(toshiba_wmi_input_dev,
+				  toshiba_wmi_keymap, NULL);
+	if (err)
+		goto err_free_dev;
+
+	status = wmi_install_notify_handler(TOSHIBA_WMI_EVENT_GUID,
+					    toshiba_wmi_notify, NULL);
+	if (ACPI_FAILURE(status)) {
+		err = -EIO;
+		goto err_free_keymap;
+	}
+
+	err = input_register_device(toshiba_wmi_input_dev);
+	if (err)
+		goto err_remove_notifier;
+
+	return 0;
+
+ err_remove_notifier:
+	wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
+ err_free_keymap:
+	sparse_keymap_free(toshiba_wmi_input_dev);
+ err_free_dev:
+	input_free_device(toshiba_wmi_input_dev);
+	return err;
+}
+
+static void toshiba_wmi_input_destroy(void)
+{
+	wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
+	sparse_keymap_free(toshiba_wmi_input_dev);
+	input_unregister_device(toshiba_wmi_input_dev);
+}
+
+static int __init toshiba_wmi_init(void)
+{
+	int ret;
+
+	if (!wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
+		return -ENODEV;
+
+	ret = toshiba_wmi_input_setup();
+	if (ret) {
+		pr_err("Failed to setup input device\n");
+		return ret;
+	}
+
+	pr_info("Toshiba WMI Hotkey Driver\n");
+
+	return 0;
+}
+
+static void __exit toshiba_wmi_exit(void)
+{
+	if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
+		toshiba_wmi_input_destroy();
+}
+
+module_init(toshiba_wmi_init);
+module_exit(toshiba_wmi_exit);
-- 
2.5.1

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#1228308 — Re: [PATCH] platform/x86: Toshiba WMI Hotkey Driver

FromDarren Hart <dvhart@infradead.org>
Date2015-09-19 00:00 +0200
SubjectRe: [PATCH] platform/x86: Toshiba WMI Hotkey Driver
Message-ID<qabRg-6KO-15@gated-at.bofh.it>
In reply to#1221593
On Wed, Sep 09, 2015 at 11:30:10AM -0600, Azael Avalos wrote:
> Toshiba laptops that feature WMI events for hotkeys were left unsupported
> by the toshiba_acpi driver, however, commit a88bc06e5aec ("toshiba_acpi:
> Avoid registering input device on WMI event laptops") added hardware
> support for such laptops, but the hotkeys are not handled there.
> 
> This driver adds support for hotkey monitoring on certain Toshiba laptops
> that manage the hotkeys via WMI events instead of the Toshiba
> Configuration Interface (TCI).
> 
> The toshiba_acpi driver and this one can co-exist, as this only takes
> care of hotkeys, while the propper takes care of hardware related stuff.
> 
> Currently the driver is under the EXPERIMENTAL flag, as the keymap
> and the notify function are incomplete (due to lack of hardware to test).
> 
> Signed-off-by: Azael Avalos <coproscefalo@gmail.com>

+Dmitry - Are you interested in being Cc'd on new users of input outside
drivers/input ?

> ---
>  MAINTAINERS                        |   6 ++
>  drivers/platform/x86/Kconfig       |  18 +++++
>  drivers/platform/x86/Makefile      |   1 +
>  drivers/platform/x86/toshiba-wmi.c | 138 +++++++++++++++++++++++++++++++++++++
>  4 files changed, 163 insertions(+)
>  create mode 100644 drivers/platform/x86/toshiba-wmi.c
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 884d398..07f4446 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10318,6 +10318,12 @@ L:	platform-driver-x86@vger.kernel.org
>  S:	Maintained
>  F:	drivers/platform/x86/toshiba_haps.c
>  
> +TOSHIBA WMI HOTKEYS DRIVER
> +M:	Azael Avalos <coproscefalo@gmail.com>
> +L:	platform-driver-x86@vger.kernel.org
> +S:	Maintained
> +F:	drivers/platform/x86/toshiba-wmi.c
> +
>  TOSHIBA SMM DRIVER
>  M:	Jonathan Buzzard <jonathan@buzzard.org.uk>
>  W:	http://www.buzzard.org.uk/toshiba/
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index c69bb70..9ae1e89 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -700,6 +700,24 @@ config TOSHIBA_HAPS
>  	  If you have a recent Toshiba laptop with a built-in accelerometer
>  	  device, say Y.
>  
> +config TOSHIBA_WMI
> +	tristate "Toshiba WMI Hotkeys Driver (EXPERIMENTAL)"
> +	default n
> +	depends on ACPI_WMI
> +	depends on INPUT
> +	select INPUT_SPARSEKMAP
> +	---help---
> +	  This driver adds hotkey monitoring support to some Toshiba models
> +	  that manage the hotkeys via WMI events.
> +
> +	  WARNING: This driver is incomplete as it lacks a propper keymap and the
> +	  *notify function only prints the ACPI event type value. Be warned that
> +	  you will need to provide some information if you have a Toshiba model
> +	  with WMI event hotkeys and want to help with the develpment of this
> +	  driver.
> +
> +	  If you have a WMI-based hotkeys Toshiba laptop, say Y or M here.
> +
>  config ACPI_CMPC
>  	tristate "CMPC Laptop Extras"
>  	depends on X86 && ACPI
> diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
> index ada5128..8f077cb 100644
> --- a/drivers/platform/x86/Makefile
> +++ b/drivers/platform/x86/Makefile
> @@ -40,6 +40,7 @@ obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
>  
>  obj-$(CONFIG_TOSHIBA_BT_RFKILL)	+= toshiba_bluetooth.o
>  obj-$(CONFIG_TOSHIBA_HAPS)	+= toshiba_haps.o
> +obj-$(CONFIG_TOSHIBA_HAPS)	+= toshiba-wmi.o
>  obj-$(CONFIG_INTEL_SCU_IPC)	+= intel_scu_ipc.o
>  obj-$(CONFIG_INTEL_SCU_IPC_UTIL) += intel_scu_ipcutil.o
>  obj-$(CONFIG_INTEL_MFLD_THERMAL) += intel_mid_thermal.o
> diff --git a/drivers/platform/x86/toshiba-wmi.c b/drivers/platform/x86/toshiba-wmi.c
> new file mode 100644
> index 0000000..8cf62a1
> --- /dev/null
> +++ b/drivers/platform/x86/toshiba-wmi.c
> @@ -0,0 +1,138 @@
> +/*
> + * toshiba_wmi.c - Toshiba WMI Hotkey Driver
> + *
> + * Copyright (C) 2015 Azael Avalos <coproscefalo@gmail.com>
> + *
> + * 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.
> + *
> + */
> +
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/init.h>
> +#include <linux/types.h>
> +#include <linux/acpi.h>
> +#include <linux/input.h>
> +#include <linux/input/sparse-keymap.h>
> +
> +MODULE_AUTHOR("Azael Avalos");
> +MODULE_DESCRIPTION("Toshiba WMI Hotkey Driver");
> +MODULE_LICENSE("GPL");
> +
> +#define TOSHIBA_WMI_EVENT_GUID	"59142400-C6A3-40FA-BADB-8A2652834100"
> +
> +MODULE_ALIAS("wmi:"TOSHIBA_WMI_EVENT_GUID);
> +
> +struct input_dev *toshiba_wmi_input_dev;
> +
> +static const struct key_entry toshiba_wmi_keymap[] __initconst = {
> +	/* TODO: Add keymap values once found... */
> +	/*{ KE_KEY, 0x00, { KEY_ } },*/
> +	{ KE_END, 0 }
> +};
> +
> +static void toshiba_wmi_notify(u32 value, void *context)
> +{
> +	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
> +	union acpi_object *obj;
> +	acpi_status status;
> +
> +	status = wmi_get_event_data(value, &response);
> +	if (ACPI_FAILURE(status)) {
> +		pr_err("Bad event status 0x%x\n", status);
> +		return;
> +	}
> +
> +	obj = (union acpi_object *)response.pointer;
> +	if (!obj)
> +		return;
> +
> +	/* TODO: Add propper checks once we have data */
> +	pr_info("Unknown event received, obj type %x\n", obj->type);

Since this will print all the time, perhaps a pr_dbg is more appropraite here...


> +
> +	kfree(response.pointer);
> +}
> +
> +static int __init toshiba_wmi_input_setup(void)
> +{
> +	acpi_status status;
> +	int err;
> +
> +	toshiba_wmi_input_dev = input_allocate_device();
> +	if (!toshiba_wmi_input_dev)
> +		return -ENOMEM;
> +
> +	toshiba_wmi_input_dev->name = "Toshiba WMI hotkeys";
> +	toshiba_wmi_input_dev->phys = "wmi/input0";
> +	toshiba_wmi_input_dev->id.bustype = BUS_HOST;
> +
> +	err = sparse_keymap_setup(toshiba_wmi_input_dev,
> +				  toshiba_wmi_keymap, NULL);
> +	if (err)
> +		goto err_free_dev;
> +
> +	status = wmi_install_notify_handler(TOSHIBA_WMI_EVENT_GUID,
> +					    toshiba_wmi_notify, NULL);
> +	if (ACPI_FAILURE(status)) {
> +		err = -EIO;
> +		goto err_free_keymap;
> +	}
> +
> +	err = input_register_device(toshiba_wmi_input_dev);
> +	if (err)
> +		goto err_remove_notifier;
> +
> +	return 0;
> +
> + err_remove_notifier:
> +	wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
> + err_free_keymap:
> +	sparse_keymap_free(toshiba_wmi_input_dev);
> + err_free_dev:
> +	input_free_device(toshiba_wmi_input_dev);
> +	return err;
> +}
> +
> +static void toshiba_wmi_input_destroy(void)
> +{
> +	wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
> +	sparse_keymap_free(toshiba_wmi_input_dev);
> +	input_unregister_device(toshiba_wmi_input_dev);
> +}
> +
> +static int __init toshiba_wmi_init(void)
> +{
> +	int ret;
> +
> +	if (!wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
> +		return -ENODEV;
> +
> +	ret = toshiba_wmi_input_setup();
> +	if (ret) {
> +		pr_err("Failed to setup input device\n");
> +		return ret;
> +	}
> +
> +	pr_info("Toshiba WMI Hotkey Driver\n");
> +
> +	return 0;
> +}
> +
> +static void __exit toshiba_wmi_exit(void)
> +{
> +	if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
> +		toshiba_wmi_input_destroy();
> +}
> +
> +module_init(toshiba_wmi_init);
> +module_exit(toshiba_wmi_exit);
> -- 
> 2.5.1
> 
> 

-- 
Darren Hart
Intel Open Source Technology Center
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#1228380 — Re: [PATCH] platform/x86: Toshiba WMI Hotkey Driver

FromAzael Avalos <coproscefalo@gmail.com>
Date2015-09-19 06:30 +0200
SubjectRe: [PATCH] platform/x86: Toshiba WMI Hotkey Driver
Message-ID<qahWF-7og-5@gated-at.bofh.it>
In reply to#1228308
Hi Darren,

2015-09-18 15:59 GMT-06:00 Darren Hart <dvhart@infradead.org>:
> On Wed, Sep 09, 2015 at 11:30:10AM -0600, Azael Avalos wrote:
>> Toshiba laptops that feature WMI events for hotkeys were left unsupported
>> by the toshiba_acpi driver, however, commit a88bc06e5aec ("toshiba_acpi:
>> Avoid registering input device on WMI event laptops") added hardware
>> support for such laptops, but the hotkeys are not handled there.
>>
>> This driver adds support for hotkey monitoring on certain Toshiba laptops
>> that manage the hotkeys via WMI events instead of the Toshiba
>> Configuration Interface (TCI).
>>
>> The toshiba_acpi driver and this one can co-exist, as this only takes
>> care of hotkeys, while the propper takes care of hardware related stuff.
>>
>> Currently the driver is under the EXPERIMENTAL flag, as the keymap
>> and the notify function are incomplete (due to lack of hardware to test).
>>
>> Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
>
> +Dmitry - Are you interested in being Cc'd on new users of input outside
> drivers/input ?
>
>> ---
>>  MAINTAINERS                        |   6 ++
>>  drivers/platform/x86/Kconfig       |  18 +++++
>>  drivers/platform/x86/Makefile      |   1 +
>>  drivers/platform/x86/toshiba-wmi.c | 138 +++++++++++++++++++++++++++++++++++++
>>  4 files changed, 163 insertions(+)
>>  create mode 100644 drivers/platform/x86/toshiba-wmi.c
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 884d398..07f4446 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -10318,6 +10318,12 @@ L:   platform-driver-x86@vger.kernel.org
>>  S:   Maintained
>>  F:   drivers/platform/x86/toshiba_haps.c
>>
>> +TOSHIBA WMI HOTKEYS DRIVER
>> +M:   Azael Avalos <coproscefalo@gmail.com>
>> +L:   platform-driver-x86@vger.kernel.org
>> +S:   Maintained
>> +F:   drivers/platform/x86/toshiba-wmi.c
>> +
>>  TOSHIBA SMM DRIVER
>>  M:   Jonathan Buzzard <jonathan@buzzard.org.uk>
>>  W:   http://www.buzzard.org.uk/toshiba/
>> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
>> index c69bb70..9ae1e89 100644
>> --- a/drivers/platform/x86/Kconfig
>> +++ b/drivers/platform/x86/Kconfig
>> @@ -700,6 +700,24 @@ config TOSHIBA_HAPS
>>         If you have a recent Toshiba laptop with a built-in accelerometer
>>         device, say Y.
>>
>> +config TOSHIBA_WMI
>> +     tristate "Toshiba WMI Hotkeys Driver (EXPERIMENTAL)"
>> +     default n
>> +     depends on ACPI_WMI
>> +     depends on INPUT
>> +     select INPUT_SPARSEKMAP
>> +     ---help---
>> +       This driver adds hotkey monitoring support to some Toshiba models
>> +       that manage the hotkeys via WMI events.
>> +
>> +       WARNING: This driver is incomplete as it lacks a propper keymap and the
>> +       *notify function only prints the ACPI event type value. Be warned that
>> +       you will need to provide some information if you have a Toshiba model
>> +       with WMI event hotkeys and want to help with the develpment of this
>> +       driver.
>> +
>> +       If you have a WMI-based hotkeys Toshiba laptop, say Y or M here.
>> +
>>  config ACPI_CMPC
>>       tristate "CMPC Laptop Extras"
>>       depends on X86 && ACPI
>> diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
>> index ada5128..8f077cb 100644
>> --- a/drivers/platform/x86/Makefile
>> +++ b/drivers/platform/x86/Makefile
>> @@ -40,6 +40,7 @@ obj-$(CONFIG_ACPI_TOSHIBA)  += toshiba_acpi.o
>>
>>  obj-$(CONFIG_TOSHIBA_BT_RFKILL)      += toshiba_bluetooth.o
>>  obj-$(CONFIG_TOSHIBA_HAPS)   += toshiba_haps.o
>> +obj-$(CONFIG_TOSHIBA_HAPS)   += toshiba-wmi.o
>>  obj-$(CONFIG_INTEL_SCU_IPC)  += intel_scu_ipc.o
>>  obj-$(CONFIG_INTEL_SCU_IPC_UTIL) += intel_scu_ipcutil.o
>>  obj-$(CONFIG_INTEL_MFLD_THERMAL) += intel_mid_thermal.o
>> diff --git a/drivers/platform/x86/toshiba-wmi.c b/drivers/platform/x86/toshiba-wmi.c
>> new file mode 100644
>> index 0000000..8cf62a1
>> --- /dev/null
>> +++ b/drivers/platform/x86/toshiba-wmi.c
>> @@ -0,0 +1,138 @@
>> +/*
>> + * toshiba_wmi.c - Toshiba WMI Hotkey Driver
>> + *
>> + * Copyright (C) 2015 Azael Avalos <coproscefalo@gmail.com>
>> + *
>> + * 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.
>> + *
>> + */
>> +
>> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
>> +
>> +#include <linux/kernel.h>
>> +#include <linux/module.h>
>> +#include <linux/init.h>
>> +#include <linux/types.h>
>> +#include <linux/acpi.h>
>> +#include <linux/input.h>
>> +#include <linux/input/sparse-keymap.h>
>> +
>> +MODULE_AUTHOR("Azael Avalos");
>> +MODULE_DESCRIPTION("Toshiba WMI Hotkey Driver");
>> +MODULE_LICENSE("GPL");
>> +
>> +#define TOSHIBA_WMI_EVENT_GUID       "59142400-C6A3-40FA-BADB-8A2652834100"
>> +
>> +MODULE_ALIAS("wmi:"TOSHIBA_WMI_EVENT_GUID);
>> +
>> +struct input_dev *toshiba_wmi_input_dev;
>> +
>> +static const struct key_entry toshiba_wmi_keymap[] __initconst = {
>> +     /* TODO: Add keymap values once found... */
>> +     /*{ KE_KEY, 0x00, { KEY_ } },*/
>> +     { KE_END, 0 }
>> +};
>> +
>> +static void toshiba_wmi_notify(u32 value, void *context)
>> +{
>> +     struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
>> +     union acpi_object *obj;
>> +     acpi_status status;
>> +
>> +     status = wmi_get_event_data(value, &response);
>> +     if (ACPI_FAILURE(status)) {
>> +             pr_err("Bad event status 0x%x\n", status);
>> +             return;
>> +     }
>> +
>> +     obj = (union acpi_object *)response.pointer;
>> +     if (!obj)
>> +             return;
>> +
>> +     /* TODO: Add propper checks once we have data */
>> +     pr_info("Unknown event received, obj type %x\n", obj->type);
>
> Since this will print all the time, perhaps a pr_dbg is more appropraite here...

OK, will change in v2, along with a static warning caught by the build test.

>
>
>> +
>> +     kfree(response.pointer);
>> +}
>> +
>> +static int __init toshiba_wmi_input_setup(void)
>> +{
>> +     acpi_status status;
>> +     int err;
>> +
>> +     toshiba_wmi_input_dev = input_allocate_device();
>> +     if (!toshiba_wmi_input_dev)
>> +             return -ENOMEM;
>> +
>> +     toshiba_wmi_input_dev->name = "Toshiba WMI hotkeys";
>> +     toshiba_wmi_input_dev->phys = "wmi/input0";
>> +     toshiba_wmi_input_dev->id.bustype = BUS_HOST;
>> +
>> +     err = sparse_keymap_setup(toshiba_wmi_input_dev,
>> +                               toshiba_wmi_keymap, NULL);
>> +     if (err)
>> +             goto err_free_dev;
>> +
>> +     status = wmi_install_notify_handler(TOSHIBA_WMI_EVENT_GUID,
>> +                                         toshiba_wmi_notify, NULL);
>> +     if (ACPI_FAILURE(status)) {
>> +             err = -EIO;
>> +             goto err_free_keymap;
>> +     }
>> +
>> +     err = input_register_device(toshiba_wmi_input_dev);
>> +     if (err)
>> +             goto err_remove_notifier;
>> +
>> +     return 0;
>> +
>> + err_remove_notifier:
>> +     wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
>> + err_free_keymap:
>> +     sparse_keymap_free(toshiba_wmi_input_dev);
>> + err_free_dev:
>> +     input_free_device(toshiba_wmi_input_dev);
>> +     return err;
>> +}
>> +
>> +static void toshiba_wmi_input_destroy(void)
>> +{
>> +     wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
>> +     sparse_keymap_free(toshiba_wmi_input_dev);
>> +     input_unregister_device(toshiba_wmi_input_dev);
>> +}
>> +
>> +static int __init toshiba_wmi_init(void)
>> +{
>> +     int ret;
>> +
>> +     if (!wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
>> +             return -ENODEV;
>> +
>> +     ret = toshiba_wmi_input_setup();
>> +     if (ret) {
>> +             pr_err("Failed to setup input device\n");
>> +             return ret;
>> +     }
>> +
>> +     pr_info("Toshiba WMI Hotkey Driver\n");
>> +
>> +     return 0;
>> +}
>> +
>> +static void __exit toshiba_wmi_exit(void)
>> +{
>> +     if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
>> +             toshiba_wmi_input_destroy();
>> +}
>> +
>> +module_init(toshiba_wmi_init);
>> +module_exit(toshiba_wmi_exit);
>> --
>> 2.5.1
>>
>>
>
> --
> Darren Hart
> Intel Open Source Technology Center


Cheers
Azael


-- 
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#1228474 — Re: [PATCH] platform/x86: Toshiba WMI Hotkey Driver

FromDmitry Torokhov <dmitry.torokhov@gmail.com>
Date2015-09-19 18:50 +0200
SubjectRe: [PATCH] platform/x86: Toshiba WMI Hotkey Driver
Message-ID<qatuN-6ZZ-3@gated-at.bofh.it>
In reply to#1228308
On Fri, Sep 18, 2015 at 2:59 PM, Darren Hart <dvhart@infradead.org> wrote:
> On Wed, Sep 09, 2015 at 11:30:10AM -0600, Azael Avalos wrote:
>> Toshiba laptops that feature WMI events for hotkeys were left unsupported
>> by the toshiba_acpi driver, however, commit a88bc06e5aec ("toshiba_acpi:
>> Avoid registering input device on WMI event laptops") added hardware
>> support for such laptops, but the hotkeys are not handled there.
>>
>> This driver adds support for hotkey monitoring on certain Toshiba laptops
>> that manage the hotkeys via WMI events instead of the Toshiba
>> Configuration Interface (TCI).
>>
>> The toshiba_acpi driver and this one can co-exist, as this only takes
>> care of hotkeys, while the propper takes care of hardware related stuff.
>>
>> Currently the driver is under the EXPERIMENTAL flag, as the keymap
>> and the notify function are incomplete (due to lack of hardware to test).
>>
>> Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
>
> +Dmitry - Are you interested in being Cc'd on new users of input outside
> drivers/input ?

Yes, please.

>
>> ---
>>  MAINTAINERS                        |   6 ++
>>  drivers/platform/x86/Kconfig       |  18 +++++
>>  drivers/platform/x86/Makefile      |   1 +
>>  drivers/platform/x86/toshiba-wmi.c | 138 +++++++++++++++++++++++++++++++++++++
>>  4 files changed, 163 insertions(+)
>>  create mode 100644 drivers/platform/x86/toshiba-wmi.c
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 884d398..07f4446 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -10318,6 +10318,12 @@ L:   platform-driver-x86@vger.kernel.org
>>  S:   Maintained
>>  F:   drivers/platform/x86/toshiba_haps.c
>>
>> +TOSHIBA WMI HOTKEYS DRIVER
>> +M:   Azael Avalos <coproscefalo@gmail.com>
>> +L:   platform-driver-x86@vger.kernel.org
>> +S:   Maintained
>> +F:   drivers/platform/x86/toshiba-wmi.c
>> +
>>  TOSHIBA SMM DRIVER
>>  M:   Jonathan Buzzard <jonathan@buzzard.org.uk>
>>  W:   http://www.buzzard.org.uk/toshiba/
>> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
>> index c69bb70..9ae1e89 100644
>> --- a/drivers/platform/x86/Kconfig
>> +++ b/drivers/platform/x86/Kconfig
>> @@ -700,6 +700,24 @@ config TOSHIBA_HAPS
>>         If you have a recent Toshiba laptop with a built-in accelerometer
>>         device, say Y.
>>
>> +config TOSHIBA_WMI
>> +     tristate "Toshiba WMI Hotkeys Driver (EXPERIMENTAL)"
>> +     default n
>> +     depends on ACPI_WMI
>> +     depends on INPUT
>> +     select INPUT_SPARSEKMAP
>> +     ---help---
>> +       This driver adds hotkey monitoring support to some Toshiba models
>> +       that manage the hotkeys via WMI events.
>> +
>> +       WARNING: This driver is incomplete as it lacks a propper keymap and the

s/propper/proper/

>> +       *notify function only prints the ACPI event type value. Be warned that
>> +       you will need to provide some information if you have a Toshiba model
>> +       with WMI event hotkeys and want to help with the develpment of this
>> +       driver.
>> +
>> +       If you have a WMI-based hotkeys Toshiba laptop, say Y or M here.
>> +
>>  config ACPI_CMPC
>>       tristate "CMPC Laptop Extras"
>>       depends on X86 && ACPI
>> diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
>> index ada5128..8f077cb 100644
>> --- a/drivers/platform/x86/Makefile
>> +++ b/drivers/platform/x86/Makefile
>> @@ -40,6 +40,7 @@ obj-$(CONFIG_ACPI_TOSHIBA)  += toshiba_acpi.o
>>
>>  obj-$(CONFIG_TOSHIBA_BT_RFKILL)      += toshiba_bluetooth.o
>>  obj-$(CONFIG_TOSHIBA_HAPS)   += toshiba_haps.o
>> +obj-$(CONFIG_TOSHIBA_HAPS)   += toshiba-wmi.o
>>  obj-$(CONFIG_INTEL_SCU_IPC)  += intel_scu_ipc.o
>>  obj-$(CONFIG_INTEL_SCU_IPC_UTIL) += intel_scu_ipcutil.o
>>  obj-$(CONFIG_INTEL_MFLD_THERMAL) += intel_mid_thermal.o
>> diff --git a/drivers/platform/x86/toshiba-wmi.c b/drivers/platform/x86/toshiba-wmi.c
>> new file mode 100644
>> index 0000000..8cf62a1
>> --- /dev/null
>> +++ b/drivers/platform/x86/toshiba-wmi.c
>> @@ -0,0 +1,138 @@
>> +/*
>> + * toshiba_wmi.c - Toshiba WMI Hotkey Driver
>> + *
>> + * Copyright (C) 2015 Azael Avalos <coproscefalo@gmail.com>
>> + *
>> + * 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.
>> + *
>> + */
>> +
>> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
>> +
>> +#include <linux/kernel.h>
>> +#include <linux/module.h>
>> +#include <linux/init.h>
>> +#include <linux/types.h>
>> +#include <linux/acpi.h>
>> +#include <linux/input.h>
>> +#include <linux/input/sparse-keymap.h>
>> +
>> +MODULE_AUTHOR("Azael Avalos");
>> +MODULE_DESCRIPTION("Toshiba WMI Hotkey Driver");
>> +MODULE_LICENSE("GPL");
>> +
>> +#define TOSHIBA_WMI_EVENT_GUID       "59142400-C6A3-40FA-BADB-8A2652834100"
>> +
>> +MODULE_ALIAS("wmi:"TOSHIBA_WMI_EVENT_GUID);
>> +
>> +struct input_dev *toshiba_wmi_input_dev;

static?

Thanks.

-- 
Dmitry
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#1228302 — Re: [PATCH 1/1] toshiba_acpi: Remove unneeded u32 variables from *setup_keyboard

FromDarren Hart <dvhart@infradead.org>
Date2015-09-18 23:50 +0200
SubjectRe: [PATCH 1/1] toshiba_acpi: Remove unneeded u32 variables from *setup_keyboard
Message-ID<qabHz-6x4-9@gated-at.bofh.it>
In reply to#1221590
On Wed, Sep 09, 2015 at 11:30:08AM -0600, Azael Avalos wrote:
> The function toshiba_acpi_setup_keyboard currently has two u32 variables
> used to store the Hotkey Event Type and the result of the HCI_SYSTEM_EVENT
> query.
> 
> This patch removes those two variables, as we already have a global
> variable named "hotkey_event_type" and the result of the HCI_SYSTEM_EVENT
> query can be checked directly from the function.
> 
> Signed-off-by: Azael Avalos <coproscefalo@gmail.com>

...

>  		goto err_free_dev;
> @@ -2443,12 +2440,10 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
>  	 * Determine hotkey query interface. Prefer using the INFO
>  	 * method when it is available.
>  	 */
> -	if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
> +	if (acpi_has_method(dev->acpi_dev->handle, "INFO")) {
>  		dev->info_supported = 1;
> -	else {
> -		hci_result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
> -		if (hci_result == TOS_SUCCESS)
> -			dev->system_event_supported = 1;
> +	} else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)

Ahem.

Missing the brace at the end and wreaking havoc on the poor compiler!

-- 
Darren Hart
Intel Open Source Technology Center
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