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[ALSA] virtuoso: monitor external power on D2X

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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>
This commit is contained in:
Clemens Ladisch 2008-01-28 08:36:55 +01:00 committed by Jaroslav Kysela
parent 5f7b9b4577
commit 7c0141591f
3 changed files with 52 additions and 1 deletions
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2
sound/pci/oxygen/oxygen.h
View file

@ -66,6 +66,7 @@ struct oxygen {
struct snd_pcm_substream *streams[PCM_COUNT];
struct snd_kcontrol *controls[CONTROL_COUNT];
struct work_struct spdif_input_bits_work;
struct work_struct gpio_work;
wait_queue_head_t ac97_waitqueue;
};
@ -88,6 +89,7 @@ struct oxygen_model {
void (*update_dac_mute)(struct oxygen *chip);
void (*ac97_switch_hook)(struct oxygen *chip, unsigned int codec,
unsigned int reg, int mute);
void (*gpio_changed)(struct oxygen *chip);
size_t model_data_size;
u8 dac_channels;
u8 used_channels;

11
sound/pci/oxygen/oxygen_lib.c
View file

@ -85,7 +85,7 @@ static irqreturn_t oxygen_interrupt(int dummy, void *dev_id)
}
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_spdif_input_bits_changed(struct work_struct *work)
}
}
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 @@ int __devinit oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
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);

40
sound/pci/oxygen/virtuoso.c
View file

@ -136,6 +136,11 @@ MODULE_DEVICE_TABLE(pci, xonar_ids);
/* 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 pcm1796_write(struct oxygen *chip, unsigned int codec,
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 @@ static void xonar_init(struct oxygen *chip)
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 @@ static void set_cs5381_params(struct oxygen *chip,
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 @@ static const struct oxygen_model model_xonar = {
.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 |