[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/virtuoso.c b/sound/pci/oxygen/virtuoso.c
index 2e1a699..40e92f5 100644
--- a/sound/pci/oxygen/virtuoso.c
+++ b/sound/pci/oxygen/virtuoso.c
@@ -136,6 +136,11 @@
/* register 23 */
#define PCM1796_ID_MASK 0x1f
+struct xonar_data {
+ u8 is_d2x;
+ u8 has_power;
+};
+
static void pcm1796_write(struct oxygen *chip, unsigned int codec,
u8 reg, u8 value)
{
@@ -153,8 +158,11 @@
static void xonar_init(struct oxygen *chip)
{
+ struct xonar_data *data = chip->model_data;
unsigned int i;
+ data->is_d2x = chip->pci->subsystem_device == 0x82b7;
+
for (i = 0; i < 4; ++i) {
pcm1796_write(chip, i, 18, PCM1796_FMT_24_LJUST | PCM1796_ATLD);
pcm1796_write(chip, i, 19, PCM1796_FLT_SHARP | PCM1796_ATS_1);
@@ -169,6 +177,15 @@
oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
GPIO_CS5381_M_SINGLE,
GPIO_CS5381_M_MASK | GPIO_ALT);
+ if (data->is_d2x) {
+ oxygen_clear_bits16(chip, OXYGEN_GPIO_CONTROL,
+ GPIO_EXT_POWER);
+ oxygen_set_bits16(chip, OXYGEN_GPIO_INTERRUPT_MASK,
+ GPIO_EXT_POWER);
+ chip->interrupt_mask |= OXYGEN_INT_GPIO;
+ data->has_power = !!(oxygen_read16(chip, OXYGEN_GPIO_DATA)
+ & GPIO_EXT_POWER);
+ }
oxygen_ac97_set_bits(chip, 0, CM9780_JACK, CM9780_FMIC2MIC);
oxygen_ac97_clear_bits(chip, 0, CM9780_GPIO_STATUS, GPIO_LINE_MUTE);
msleep(300);
@@ -234,6 +251,27 @@
value, GPIO_CS5381_M_MASK);
}
+static void xonar_gpio_changed(struct oxygen *chip)
+{
+ struct xonar_data *data = chip->model_data;
+ u8 has_power;
+
+ if (!data->is_d2x)
+ return;
+ has_power = !!(oxygen_read16(chip, OXYGEN_GPIO_DATA)
+ & GPIO_EXT_POWER);
+ if (has_power != data->has_power) {
+ data->has_power = has_power;
+ if (has_power) {
+ snd_printk(KERN_NOTICE "power restored\n");
+ } else {
+ snd_printk(KERN_CRIT
+ "Hey! Don't unplug the power cable!\n");
+ /* TODO: stop PCMs */
+ }
+ }
+}
+
static void mute_ac97_ctl(struct oxygen *chip, unsigned int control)
{
unsigned int index = chip->controls[control]->private_value & 0xff;
@@ -360,6 +398,8 @@
.update_dac_volume = update_pcm1796_volume,
.update_dac_mute = update_pcm1796_mute,
.ac97_switch_hook = xonar_ac97_switch_hook,
+ .gpio_changed = xonar_gpio_changed,
+ .model_data_size = sizeof(struct xonar_data),
.dac_channels = 8,
.used_channels = OXYGEN_CHANNEL_B |
OXYGEN_CHANNEL_C |