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Commit 7c014159 authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Jaroslav Kysela
Browse files

[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: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 5f7b9b45

sound/pci/oxygen/oxygen.h

+2 −0
Original line number Diff line number Diff line
@@ -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;

sound/pci/oxygen/oxygen_lib.c

+10 −1
Original line number Diff line number Diff line
@@ -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);

sound/pci/oxygen/virtuoso.c

+40 −0
Original line number Diff line number Diff line
@@ -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 |