opti92x-ad1848.c

是关于linux2.5.1的完全源码

		snd_opti93x_free(codec);
		return error;
	}

	*rcodec = codec;
	return 0;
}

static snd_pcm_ops_t snd_opti93x_playback_ops = {
	open:		snd_opti93x_playback_open,
	close:		snd_opti93x_playback_close,
	ioctl:		snd_pcm_lib_ioctl,
	hw_params:	snd_opti93x_hw_params,
	hw_free:	snd_opti93x_hw_free,
	prepare:	snd_opti93x_playback_prepare,
	trigger:	snd_opti93x_playback_trigger,
	pointer:	snd_opti93x_playback_pointer,
};

static snd_pcm_ops_t snd_opti93x_capture_ops = {
	open:		snd_opti93x_capture_open,
	close:		snd_opti93x_capture_close,
	ioctl:		snd_pcm_lib_ioctl,
	hw_params:	snd_opti93x_hw_params,
	hw_free:	snd_opti93x_hw_free,
	prepare:	snd_opti93x_capture_prepare,
	trigger:	snd_opti93x_capture_trigger,
	pointer:	snd_opti93x_capture_pointer,
};

static void snd_opti93x_pcm_free(snd_pcm_t *pcm)
{
	opti93x_t *codec = snd_magic_cast(opti93x_t, pcm->private_data, return);
	codec->pcm = NULL;
	snd_pcm_lib_preallocate_free_for_all(pcm);
}

int snd_opti93x_pcm(opti93x_t *codec, int device, snd_pcm_t **rpcm)
{
	int error;
	snd_pcm_t *pcm;

	if ((error = snd_pcm_new(codec->card, "OPTi 82C93X", device, 1, 1, &pcm)))
		return error;

	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_opti93x_playback_ops);
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_opti93x_capture_ops);

	pcm->private_data = codec;
	pcm->private_free = snd_opti93x_pcm_free;
	pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;

	strcpy(pcm->name, snd_opti93x_chip_id(codec));

	snd_pcm_lib_preallocate_isa_pages_for_all(pcm, 64*1024, codec->dma1 > 3 || codec->dma2 > 3 ? 128*1024 : 64*1024);

	codec->pcm = pcm;
	if (rpcm)
		*rpcm = pcm;
	return 0;
}

/*
 *  MIXER part
 */

static int snd_opti93x_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	static char *texts[4] = {
		"Line1", "Aux", "Mic", "Mix"
	};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 2;
	uinfo->value.enumerated.items = 4;
	if (uinfo->value.enumerated.item > 3)
		uinfo->value.enumerated.item = 3;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_opti93x_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	opti93x_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	
	spin_lock_irqsave(&chip->lock, flags);
	ucontrol->value.enumerated.item[0] = (chip->image[OPTi93X_MIXOUT_LEFT] & OPTi93X_MIXOUT_MIXER) >> 6;
	ucontrol->value.enumerated.item[1] = (chip->image[OPTi93X_MIXOUT_RIGHT] & OPTi93X_MIXOUT_MIXER) >> 6;
	spin_unlock_irqrestore(&chip->lock, flags);
	return 0;
}

static int snd_opti93x_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	opti93x_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	unsigned short left, right;
	int change;
	
	if (ucontrol->value.enumerated.item[0] > 3 ||
	    ucontrol->value.enumerated.item[1] > 3)
		return -EINVAL;
	left = ucontrol->value.enumerated.item[0] << 6;
	right = ucontrol->value.enumerated.item[1] << 6;
	spin_lock_irqsave(&chip->lock, flags);
	left = (chip->image[OPTi93X_MIXOUT_LEFT] & ~OPTi93X_MIXOUT_MIXER) | left;
	right = (chip->image[OPTi93X_MIXOUT_RIGHT] & ~OPTi93X_MIXOUT_MIXER) | right;
	change = left != chip->image[OPTi93X_MIXOUT_LEFT] ||
	         right != chip->image[OPTi93X_MIXOUT_RIGHT];
	snd_opti93x_out(chip, OPTi93X_MIXOUT_LEFT, left);
	snd_opti93x_out(chip, OPTi93X_MIXOUT_RIGHT, right);
	spin_unlock_irqrestore(&chip->lock, flags);
	return change;
}

#if 0

#define OPTi93X_SINGLE(xname, xindex, reg, shift, mask, invert) \
{ iface: SNDRV_CTL_ELEM_IFACE_MIXER, name: xname, index: xindex, \
  info: snd_opti93x_info_single, \
  get: snd_opti93x_get_single, put: snd_opti93x_put_single, \
  private_value: reg | (shift << 8) | (mask << 16) | (invert << 24) }

static int snd_opti93x_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	int mask = (kcontrol->private_value >> 16) & 0xff;

	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_opti93x_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	opti93x_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int reg = kcontrol->private_value & 0xff;
	int shift = (kcontrol->private_value >> 8) & 0xff;
	int mask = (kcontrol->private_value >> 16) & 0xff;
	int invert = (kcontrol->private_value >> 24) & 0xff;
	
	spin_lock_irqsave(&chip->lock, flags);
	ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
	spin_unlock_irqrestore(&chip->lock, flags);
	if (invert)
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
	return 0;
}

static int snd_opti93x_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	opti93x_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int reg = kcontrol->private_value & 0xff;
	int shift = (kcontrol->private_value >> 8) & 0xff;
	int mask = (kcontrol->private_value >> 16) & 0xff;
	int invert = (kcontrol->private_value >> 24) & 0xff;
	int change;
	unsigned short val;
	
	val = (ucontrol->value.integer.value[0] & mask);
	if (invert)
		val = mask - val;
	val <<= shift;
	spin_lock_irqsave(&chip->lock, flags);
	val = (chip->image[reg] & ~(mask << shift)) | val;
	change = val != chip->image[reg];
	snd_opti93x_out(chip, reg, val);
	spin_unlock_irqrestore(&chip->lock, flags);
	return change;
}

#endif /* single */

#define OPTi93X_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
{ iface: SNDRV_CTL_ELEM_IFACE_MIXER, name: xname, index: xindex, \
  info: snd_opti93x_info_double, \
  get: snd_opti93x_get_double, put: snd_opti93x_put_double, \
  private_value: left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }

#define OPTi93X_DOUBLE_INVERT_INVERT(xctl) \
	do { xctl.private_value ^= 22; } while (0)
#define OPTi93X_DOUBLE_CHANGE_REGS(xctl, left_reg, right_reg) \
	do { xctl.private_value &= ~0x0000ffff; \
	     xctl.private_value |= left_reg | (right_reg << 8); } while (0)

static int snd_opti93x_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	int mask = (kcontrol->private_value >> 16) & 0xff;

	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_opti93x_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	opti93x_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int left_reg = kcontrol->private_value & 0xff;
	int right_reg = (kcontrol->private_value >> 8) & 0xff;
	int shift_left = (kcontrol->private_value >> 16) & 0x07;
	int shift_right = (kcontrol->private_value >> 19) & 0x07;
	int mask = (kcontrol->private_value >> 24) & 0xff;
	int invert = (kcontrol->private_value >> 22) & 1;
	
	spin_lock_irqsave(&chip->lock, flags);
	ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
	ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
	spin_unlock_irqrestore(&chip->lock, flags);
	if (invert) {
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
	}
	return 0;
}

static int snd_opti93x_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	opti93x_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int left_reg = kcontrol->private_value & 0xff;
	int right_reg = (kcontrol->private_value >> 8) & 0xff;
	int shift_left = (kcontrol->private_value >> 16) & 0x07;
	int shift_right = (kcontrol->private_value >> 19) & 0x07;
	int mask = (kcontrol->private_value >> 24) & 0xff;
	int invert = (kcontrol->private_value >> 22) & 1;
	int change;
	unsigned short val1, val2;
	
	val1 = ucontrol->value.integer.value[0] & mask;
	val2 = ucontrol->value.integer.value[1] & mask;
	if (invert) {
		val1 = mask - val1;
		val2 = mask - val2;
	}
	val1 <<= shift_left;
	val2 <<= shift_right;
	spin_lock_irqsave(&chip->lock, flags);
	val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
	val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
	change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
	snd_opti93x_out(chip, left_reg, val1);
	snd_opti93x_out(chip, right_reg, val1);
	spin_unlock_irqrestore(&chip->lock, flags);
	return change;
}

#define OPTi93X_CONTROLS (sizeof(snd_opti93x_controls)/sizeof(snd_kcontrol_new_t))

static snd_kcontrol_new_t snd_opti93x_controls[] = {
OPTi93X_DOUBLE("Master Playback Switch", 0, OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 7, 7, 1, 1),
OPTi93X_DOUBLE("Master Playback Volume", 0, OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 0, 0, 31, 1),
OPTi93X_DOUBLE("PCM Playback Switch", 0, OPTi93X_DAC_LEFT, OPTi93X_DAC_RIGHT, 7, 7, 1, 1),
OPTi93X_DOUBLE("PCM Playback Volume", 0, OPTi93X_DAC_LEFT, OPTi93X_DAC_RIGHT, 0, 0, 31, 0),
OPTi93X_DOUBLE("FM Playback Switch", 0, OPTi931_FM_LEFT_INPUT, OPTi931_FM_RIGHT_INPUT, 7, 7, 1, 1),
OPTi93X_DOUBLE("FM Playback Volume", 0, OPTi931_FM_LEFT_INPUT, OPTi931_FM_RIGHT_INPUT, 0, 0, 15, 1),
OPTi93X_DOUBLE("Line Playback Switch", 0, OPTi93X_LINE_LEFT_INPUT, OPTi93X_LINE_RIGHT_INPUT, 7, 7, 1, 1),
OPTi93X_DOUBLE("Line Playback Volume", 0, OPTi93X_LINE_LEFT_INPUT, OPTi93X_LINE_RIGHT_INPUT, 0, 0, 15, 1),
OPTi93X_DOUBLE("Mic Playback Switch", 0, OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 7, 7, 1, 1),
OPTi93X_DOUBLE("Mic Playback Volume", 0, OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 0, 0, 15, 1),
OPTi93X_DOUBLE("Mic Boost", 0, OPTi93X_MIXOUT_LEFT, OPTi93X_MIXOUT_RIGHT, 5, 5, 1, 1),
OPTi93X_DOUBLE("CD Playback Switch", 0, OPTi93X_CD_LEFT_INPUT, OPTi93X_CD_RIGHT_INPUT, 7, 7, 1, 1),
OPTi93X_DOUBLE("CD Playback Volume", 0, OPTi93X_CD_LEFT_INPUT, OPTi93X_CD_RIGHT_INPUT, 0, 0, 15, 1),
OPTi93X_DOUBLE("Aux Playback Switch", 0, OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 7, 7, 1, 1),
OPTi93X_DOUBLE("Aux Playback Volume", 0, OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 0, 0, 15, 1),
OPTi93X_DOUBLE("Capture Volume", 0, OPTi93X_MIXOUT_LEFT, OPTi93X_MIXOUT_RIGHT, 0, 0, 15, 0),
{
	iface: SNDRV_CTL_ELEM_IFACE_MIXER,
	name: "Capture Source",
	info: snd_opti93x_info_mux,
	get: snd_opti93x_get_mux,
	put: snd_opti93x_put_mux,
}
};
                                        
int snd_opti93x_mixer(opti93x_t *chip)
{
	snd_card_t *card;
	snd_kcontrol_new_t knew;
	int err, idx;

	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);

	card = chip->card;

	strcpy(card->mixername, snd_opti93x_chip_id(chip));

	for (idx = 0; idx < OPTi93X_CONTROLS; idx++) {
		knew = snd_opti93x_controls[idx];
		if (chip->hardware == OPTi9XX_HW_82C930) {
			if (strstr(knew.name, "FM"))	/* skip FM controls */
				continue;
			else if (strcmp(knew.name, "Mic Playback Volume"))
				OPTi93X_DOUBLE_INVERT_INVERT(knew);
			else if (strstr(knew.name, "Aux"))
				OPTi93X_DOUBLE_CHANGE_REGS(knew, OPTi930_AUX_LEFT_INPUT, OPTi930_AUX_RIGHT_INPUT);
			else if (strcmp(knew.name, "PCM Playback Volume"))
				OPTi93X_DOUBLE_INVERT_INVERT(knew);
			else if (strcmp(knew.name, "Master Playback Volume"))
				OPTi93X_DOUBLE_INVERT_INVERT(knew);
		}
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_opti93x_controls[idx], chip))) < 0)
			return err;
	}
	return 0;
}

#endif /* OPTi93X */

static int __init snd_card_opti9xx_detect(snd_card_t *card, opti9xx_t *chip)
{
	int i, err;
	static int opti9xx_mc_size[] = {7, 7, 10, 10, 2, 2, 2};

#ifndef OPTi93X
	for (i = OPTi9XX_HW_82C928; i < OPTi9XX_HW_82C930; i++) {
		unsigned char value;

		if ((err = snd_opti9xx_init(chip, i)) < 0)
			return err;
		chip->mc_base_size = opti9xx_mc_size[i];
		if (check_region(chip->mc_base, chip->mc_base_size))
			continue;

		value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(1));
		if ((value != 0xff) && (value != inb(chip->mc_base + 1)))
			if (value == snd_opti9xx_read(chip, OPTi9XX_MC_REG(1)))
				return 1;
	}
#else	/* OPTi93X */
	for (i = OPTi9XX_HW_82C931; i >= OPTi9XX_HW_82C930; i--) {
		unsigned long flags;
		unsigned char value;

		if ((err = snd_opti9xx_init(chip, i)) < 0)
			return err;
		chip->mc_base_size = opti9xx_mc_size[i];
		if (check_region(chip->mc_base, chip->mc_base_size))
			continue;

		spin_lock_irqsave(&chip->lock, flags);
		outb(chip->password, chip->mc_base + chip->pwd_reg);
		outb(((chip->mc_indir_index & (1 << 8)) >> 4) |
			((chip->mc_indir_index & 0xf0) >> 4), chip->mc_base);
		spin_unlock_irqrestore(&chip->lock, flags);

		value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(7));
		snd_opti9xx_write(chip, OPTi9XX_MC_REG(7), 0xff - value);
		if (snd_opti9xx_read(chip, OPTi9XX_MC_REG(7)) == 0xff - value)
			return 1;
	}
#endif	/* OPTi93X */

	return -ENODEV;
}

#ifdef __ISAPNP__
static int __init snd_card_opti9xx_isapnp(opti9xx_t *chip)
{
	struct isapnp_dev *pdev = NULL;
	const struct isapnp_card_id *pid = snd_card_opti9xx_pnpids-1;
	static struct isapnp_card *card = NULL;

      __again:
	while (1) {
		pid++;
		if (pid->card_vendor == 0)
			return -ENODEV;
		if ((card = isapnp_find_card(pid->card_vendor, pid->card_device, card)))
			break;
	}
	if (card == NULL)
		return -ENODEV;

	chip->dev = isapnp_find_dev(card, pid->devs[0].vendor, pid->devs[0].function, NULL);
	if (chip->dev == NULL)
		goto __again;

	chip->devmpu = isapnp_find_dev(card, pid->devs[1].vendor, pid->devs[1].function, NULL);

	pdev = chip->dev;
	if (pdev->prepare(pdev) < 0)
		return -EAGAIN;

#ifdef OPTi93X
	if (snd_port != SNDRV_AUTO_PORT)
		isapnp_resource_change(&pdev->resource[0], snd_port + 4, 4);
#else
	if ((pid->card_device != ISAPNP_DEVICE(0x0924)) && (snd_port != SNDRV_AUTO_PORT))
		isapnp_resource_change(&pdev->resource[1], snd_port, 4);
#endif	/* OPTi93X */
	if (snd_irq != SNDRV_AUTO_IRQ)
		isapnp_resource_change(&pdev->irq_resource[0], snd_irq, 1);
	if (snd_dma1 != SNDRV_AUTO_DMA)
		isapnp_resource_change(&pdev->dma_resource[0], snd_dma1, 1);
#if defined(CS4231) || defined(OPTi93X)
	if (snd_dma2 != SNDRV_AUTO_DMA)
		isapnp_resource_change(&pdev->dma_resource[1], snd_dma2, 1);
#endif	/* CS4231 || OPTi93X */
	if (snd_fm_port != SNDRV_AUTO_PORT)
		isapnp_resource_change(&pdev->resource[1], snd_fm_port, 4);

	if (pdev->activate(pdev) < 0) {
		snd_printk("AUDIO isapnp configure failure\n");
		return -EBUSY;
	}

#ifdef OPTi93X
	snd_port = pdev->resource[0].start - 4;
	snd_fm_port = pdev->resource[1].start;
#else
	if (pid->card_device != ISAPNP_DEVICE(0x0924))
		snd_port = pdev->resource[1].start;
	snd_fm_port = pdev->resource[2].start;
#endif	/* OPTi93X */
	snd_irq = pdev->irq_resource[0].start;
	snd_dma1 = pdev->dma_resource[0].start;
#if defined(CS4231) || defined(OPTi93X)
	snd_dma2 = pdev->dma_resource[1].start;
#endif	/* CS4231 || OPTi93X */

	pdev = chip->devmpu;
	if (pdev == NULL || pdev->prepare(pdev) < 0) {
		snd_mpu_port = -1;
		chip->devmpu = NULL;
		return pid->card_device;
	}

	if (snd_mpu_port != SNDRV_AUTO_PORT)
		isapnp_resource_change(&pdev->resource[0], snd_mpu_port, 2);
	if (snd_mpu_irq != SNDRV_AUTO_IRQ)
		isapnp_resource_change(&pdev->irq_resource[0], snd_mpu_irq, 1);

	if (pdev->activate(pdev) < 0) {
		snd_printk("MPU-401 isapnp configure failure\n");
		snd_mpu_port = -1;
		chip->devmpu = NULL;
	} else {