[ALSA] virtuoso: monitor external power on D2X
On the Xonar D2X, monitor the GPIO pin that indicates whether external
power is present.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
index 540e56b..6eb36dd 100644
--- a/sound/pci/oxygen/oxygen_lib.c
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -85,7 +85,7 @@
}
if (status & OXYGEN_INT_GPIO)
- ;
+ schedule_work(&chip->gpio_work);
if ((status & OXYGEN_INT_MIDI) && chip->midi)
snd_mpu401_uart_interrupt(0, chip->midi->private_data);
@@ -157,6 +157,14 @@
}
}
+static void oxygen_gpio_changed(struct work_struct *work)
+{
+ struct oxygen *chip = container_of(work, struct oxygen, gpio_work);
+
+ if (chip->model->gpio_changed)
+ chip->model->gpio_changed(chip);
+}
+
#ifdef CONFIG_PROC_FS
static void oxygen_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
@@ -413,6 +421,7 @@
mutex_init(&chip->mutex);
INIT_WORK(&chip->spdif_input_bits_work,
oxygen_spdif_input_bits_changed);
+ INIT_WORK(&chip->gpio_work, oxygen_gpio_changed);
init_waitqueue_head(&chip->ac97_waitqueue);
err = pci_enable_device(pci);