Hello,
On Sun, 2009-09-20 at 14:09 -0300, Henrique de Moraes Holschuh wrote:
> Add an internal API to the driver, to allow subdrivers to request and
> receive HKEY 0x1000 events. This API will be used by the backlight
> (brightness up/down) and upcoming ALSA mixer (volume up/down/mute)
> subdrivers.
>
> Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
> ---
> drivers/platform/x86/thinkpad_acpi.c | 48 ++++++++++++++++++++++++++++++++++
> 1 files changed, 48 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> index 50aa4c1..ffd584c 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/thinkpad_acpi.c
> @@ -2014,6 +2014,9 @@ static u16 *hotkey_keycode_map;
>
> static struct attribute_set *hotkey_dev_attributes;
>
> +static void tpacpi_driver_event(const unsigned int hkey_event);
> +static void hotkey_driver_event(const unsigned int scancode);
> +
> /* HKEY.MHKG() return bits */
> #define TP_HOTKEY_TABLET_MASK (1 << 3)
>
> @@ -2168,6 +2171,35 @@ static int hotkey_user_mask_set(const u32 mask)
> return rc;
> }
>
> +/*
> + * Sets the driver hotkey mask.
> + *
> + * Can be called even if the hotkey subdriver is inactive
> + */
> +static int tpacpi_hotkey_driver_mask_set(const u32 mask)
CC [M] drivers/platform/x86/thinkpad_acpi.o
drivers/platform/x86/thinkpad_acpi.c:2225: warning: ‘tpacpi_hotkey_driver_mask_set’ defined but not used
Thanks,
--
JSR
> +{
> + int rc;
> +
> + /* Do the right thing if hotkey_init has not been called yet */
> + if (!tp_features.hotkey) {
> + hotkey_driver_mask = mask;
> + return 0;
> + }
> +
> + mutex_lock(&hotkey_mutex);
> +
> + HOTKEY_CONFIG_CRITICAL_START
> + hotkey_driver_mask = mask;
> + hotkey_source_mask |= (mask & ~hotkey_all_mask);
> + HOTKEY_CONFIG_CRITICAL_END
> +
> + rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) &
> + ~hotkey_source_mask);
> + mutex_unlock(&hotkey_mutex);
> +
> + return rc;
> +}
> +
> static int hotkey_status_get(int *status)
> {
> if (!acpi_evalf(hkey_handle, status, "DHKC", "d"))
> @@ -2227,6 +2259,7 @@ static void tpacpi_input_send_key(const unsigned int scancode)
> /* Do NOT call without validating scancode first */
> static void tpacpi_input_send_key_masked(const unsigned int scancode)
> {
> + hotkey_driver_event(scancode);
> if (hotkey_user_mask & (1 << scancode))
> tpacpi_input_send_key(scancode);
> }
> @@ -7625,6 +7658,21 @@ static struct ibm_struct fan_driver_data = {
> ****************************************************************************
> ****************************************************************************/
>
> +/*
> + * HKEY event callout for other subdrivers go here
> + * (yes, it is ugly, but it is quick, safe, and gets the job done
> + */
> +static void tpacpi_driver_event(const unsigned int hkey_event)
> +{
> +}
> +
> +
> +
> +static void hotkey_driver_event(const unsigned int scancode)
> +{
> + tpacpi_driver_event(0x1001 + scancode);
> +}
> +
> /* sysfs name ---------------------------------------------------------- */
> static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev,
> struct device_attribute *attr,
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