miro.c

linux 内核源代码

		return right_old;
	}

	if ((getreg_right >= ACI_GET_EQ1) && (getreg_right <= ACI_GET_EQ7)) {

		/* equalizer elements */

		if (left_old > 0x80) 
			left_old = 0x80 - left_old;
		if (right_old > 0x80) 
			right_old = 0x80 - right_old;

		if (left >= 0) {
			if ((error = aci_setvalue(miro, setreg_left, left)) < 0) {
				snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
					   left, error);
				return error;
			}
		} else {
			if ((error = aci_setvalue(miro, setreg_left, 0x80 - left)) < 0) {
				snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
					   0x80 - left, error);
				return error;
			}
		}

		if (right >= 0) {
			if ((error = aci_setvalue(miro, setreg_right, right)) < 0) {
				snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
					   right, error);
				return error;
			}
		} else {
			if ((error = aci_setvalue(miro, setreg_right, 0x80 - right)) < 0) {
				snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
					   0x80 - right, error);
				return error;
			}
		}

	} else {

		/* non-equalizer elements */

		left_old = 0x20 - left_old;
		right_old = 0x20 - right_old;

		if ((error = aci_setvalue(miro, setreg_left, 0x20 - left)) < 0) {
			snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
				   0x20 - left, error);
			return error;
		}
		if ((error = aci_setvalue(miro, setreg_right, 0x20 - right)) < 0) {
			snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
				   0x20 - right, error);
			return error;
		}
	}

	change = (left != left_old) || (right != right_old);

	return change;
}

static struct snd_kcontrol_new snd_miro_controls[] __devinitdata = {
MIRO_DOUBLE("Master Playback Volume", 0, ACI_GET_MASTER, ACI_SET_MASTER),
MIRO_DOUBLE("Mic Playback Volume", 1, ACI_GET_MIC, ACI_SET_MIC),
MIRO_DOUBLE("Line Playback Volume", 1, ACI_GET_LINE, ACI_SET_LINE),
MIRO_DOUBLE("CD Playback Volume", 0, ACI_GET_CD, ACI_SET_CD),
MIRO_DOUBLE("Synth Playback Volume", 0, ACI_GET_SYNTH, ACI_SET_SYNTH),
MIRO_DOUBLE("PCM Playback Volume", 1, ACI_GET_PCM, ACI_SET_PCM),
MIRO_DOUBLE("Aux Playback Volume", 2, ACI_GET_LINE2, ACI_SET_LINE2),
};

/* Equalizer with seven bands (only PCM20) 
   from -12dB up to +12dB on each band */
static struct snd_kcontrol_new snd_miro_eq_controls[] __devinitdata = {
MIRO_DOUBLE("Tone Control - 28 Hz", 0, ACI_GET_EQ1, ACI_SET_EQ1),
MIRO_DOUBLE("Tone Control - 160 Hz", 0, ACI_GET_EQ2, ACI_SET_EQ2),
MIRO_DOUBLE("Tone Control - 400 Hz", 0, ACI_GET_EQ3, ACI_SET_EQ3),
MIRO_DOUBLE("Tone Control - 1 kHz", 0, ACI_GET_EQ4, ACI_SET_EQ4),
MIRO_DOUBLE("Tone Control - 2.5 kHz", 0, ACI_GET_EQ5, ACI_SET_EQ5),
MIRO_DOUBLE("Tone Control - 6.3 kHz", 0, ACI_GET_EQ6, ACI_SET_EQ6),
MIRO_DOUBLE("Tone Control - 16 kHz", 0, ACI_GET_EQ7, ACI_SET_EQ7),
};

static struct snd_kcontrol_new snd_miro_radio_control[] __devinitdata = {
MIRO_DOUBLE("Radio Playback Volume", 0, ACI_GET_LINE1, ACI_SET_LINE1),
};

static struct snd_kcontrol_new snd_miro_line_control[] __devinitdata = {
MIRO_DOUBLE("Line Playback Volume", 2, ACI_GET_LINE1, ACI_SET_LINE1),
};

static struct snd_kcontrol_new snd_miro_preamp_control[] __devinitdata = {
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Mic Boost",
	.index = 1,
	.info = snd_miro_info_preamp,
	.get = snd_miro_get_preamp,
	.put = snd_miro_put_preamp,
}};

static struct snd_kcontrol_new snd_miro_amp_control[] __devinitdata = {
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Line Boost",
	.index = 0,
	.info = snd_miro_info_amp,
	.get = snd_miro_get_amp,
	.put = snd_miro_put_amp,
}};

static struct snd_kcontrol_new snd_miro_capture_control[] __devinitdata = {
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "PCM Capture Switch",
	.index = 0,
	.info = snd_miro_info_capture,
	.get = snd_miro_get_capture,
	.put = snd_miro_put_capture,
}};

static unsigned char aci_init_values[][2] __devinitdata = {
	{ ACI_SET_MUTE, 0x00 },
	{ ACI_SET_POWERAMP, 0x00 },
	{ ACI_SET_PREAMP, 0x00 },
	{ ACI_SET_SOLOMODE, 0x00 },
	{ ACI_SET_MIC + 0, 0x20 },
	{ ACI_SET_MIC + 8, 0x20 },
	{ ACI_SET_LINE + 0, 0x20 },
	{ ACI_SET_LINE + 8, 0x20 },
	{ ACI_SET_CD + 0, 0x20 },
	{ ACI_SET_CD + 8, 0x20 },
	{ ACI_SET_PCM + 0, 0x20 },
	{ ACI_SET_PCM + 8, 0x20 },
	{ ACI_SET_LINE1 + 0, 0x20 },
	{ ACI_SET_LINE1 + 8, 0x20 },
	{ ACI_SET_LINE2 + 0, 0x20 },
	{ ACI_SET_LINE2 + 8, 0x20 },
	{ ACI_SET_SYNTH + 0, 0x20 },
	{ ACI_SET_SYNTH + 8, 0x20 },
	{ ACI_SET_MASTER + 0, 0x20 },
	{ ACI_SET_MASTER + 1, 0x20 },
};

static int __devinit snd_set_aci_init_values(struct snd_miro *miro)
{
	int idx, error;

	/* enable WSS on PCM1 */

	if ((miro->aci_product == 'A') && wss) {
		if ((error = aci_setvalue(miro, ACI_SET_WSS, wss)) < 0) {
			snd_printk(KERN_ERR "enabling WSS mode failed\n");
			return error;
		}
	}

	/* enable IDE port */

	if (ide) {
		if ((error = aci_setvalue(miro, ACI_SET_IDE, ide)) < 0) {
			snd_printk(KERN_ERR "enabling IDE port failed\n");
			return error;
		}
	}

	/* set common aci values */

	for (idx = 0; idx < ARRAY_SIZE(aci_init_values); idx++)
                if ((error = aci_setvalue(miro, aci_init_values[idx][0], 
					  aci_init_values[idx][1])) < 0) {
			snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n", 
				   aci_init_values[idx][0], error);
                        return error;
                }

	miro->aci_amp = 0;
	miro->aci_preamp = 0;
	miro->aci_solomode = 1;

	return 0;
}

static int snd_miro_mixer(struct snd_miro *miro)
{
	struct snd_card *card;
	unsigned int idx;
	int err;

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

	card = miro->card;

	switch (miro->hardware) {
	case OPTi9XX_HW_82C924:
		strcpy(card->mixername, "ACI & OPTi924");
		break;
	case OPTi9XX_HW_82C929:
		strcpy(card->mixername, "ACI & OPTi929");
		break;
	default:
		snd_BUG();
		break;
	}

	for (idx = 0; idx < ARRAY_SIZE(snd_miro_controls); idx++) {
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_controls[idx], miro))) < 0)
			return err;
	}

	if ((miro->aci_product == 'A') || (miro->aci_product == 'B')) {
		/* PCM1/PCM12 with power-amp and Line 2 */
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_line_control[0], miro))) < 0)
			return err;
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_amp_control[0], miro))) < 0)
			return err;
	}

	if ((miro->aci_product == 'B') || (miro->aci_product == 'C')) {
		/* PCM12/PCM20 with mic-preamp */
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_preamp_control[0], miro))) < 0)
			return err;
		if (miro->aci_version >= 176)
			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_capture_control[0], miro))) < 0)
				return err;
	}

	if (miro->aci_product == 'C') {
		/* PCM20 with radio and 7 band equalizer */
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_radio_control[0], miro))) < 0)
			return err;
		for (idx = 0; idx < ARRAY_SIZE(snd_miro_eq_controls); idx++) {
			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_eq_controls[idx], miro))) < 0)
				return err;
		}
	}

	return 0;
}

static long snd_legacy_find_free_ioport(long *port_table, long size)
{
	while (*port_table != -1) {
		struct resource *res;
		if ((res = request_region(*port_table, size, 
					  "ALSA test")) != NULL) {
			release_and_free_resource(res);
			return *port_table;
		}
		port_table++;
	}
	return -1;
}

static int __devinit snd_miro_init(struct snd_miro *chip,
				   unsigned short hardware)
{
	static int opti9xx_mc_size[] = {7, 7, 10, 10, 2, 2, 2};

	chip->hardware = hardware;
	strcpy(chip->name, snd_opti9xx_names[hardware]);

	chip->mc_base_size = opti9xx_mc_size[hardware];  

	spin_lock_init(&chip->lock);

	chip->wss_base = -1;
	chip->irq = -1;
	chip->dma1 = -1;
	chip->dma2 = -1;
	chip->fm_port = -1;
	chip->mpu_port = -1;
	chip->mpu_irq = -1;

	switch (hardware) {
	case OPTi9XX_HW_82C929:
		chip->mc_base = 0xf8c;
		chip->password = 0xe3;
		chip->pwd_reg = 3;
		break;

	case OPTi9XX_HW_82C924:
		chip->mc_base = 0xf8c;
		chip->password = 0xe5;
		chip->pwd_reg = 3;
		break;

	default:
		snd_printk(KERN_ERR "sorry, no support for %d\n", hardware);
		return -ENODEV;
	}

	return 0;
}

static unsigned char snd_miro_read(struct snd_miro *chip,
				   unsigned char reg)
{
	unsigned long flags;
	unsigned char retval = 0xff;

	spin_lock_irqsave(&chip->lock, flags);
	outb(chip->password, chip->mc_base + chip->pwd_reg);

	switch (chip->hardware) {
	case OPTi9XX_HW_82C924:
		if (reg > 7) {
			outb(reg, chip->mc_base + 8);
			outb(chip->password, chip->mc_base + chip->pwd_reg);
			retval = inb(chip->mc_base + 9);
			break;
		}

	case OPTi9XX_HW_82C929:
		retval = inb(chip->mc_base + reg);
		break;

	default:
		snd_printk(KERN_ERR "sorry, no support for %d\n", chip->hardware);
	}

	spin_unlock_irqrestore(&chip->lock, flags);
	return retval;
}

static void snd_miro_write(struct snd_miro *chip, unsigned char reg,
			   unsigned char value)
{
	unsigned long flags;

	spin_lock_irqsave(&chip->lock, flags);
	outb(chip->password, chip->mc_base + chip->pwd_reg);

	switch (chip->hardware) {
	case OPTi9XX_HW_82C924:
		if (reg > 7) {
			outb(reg, chip->mc_base + 8);
			outb(chip->password, chip->mc_base + chip->pwd_reg);
			outb(value, chip->mc_base + 9);
			break;
		}

	case OPTi9XX_HW_82C929:
		outb(value, chip->mc_base + reg);
		break;

	default:
		snd_printk(KERN_ERR "sorry, no support for %d\n", chip->hardware);
	}

	spin_unlock_irqrestore(&chip->lock, flags);
}


#define snd_miro_write_mask(chip, reg, value, mask)	\
	snd_miro_write(chip, reg,			\
		(snd_miro_read(chip, reg) & ~(mask)) | ((value) & (mask)))

/*
 *  Proc Interface
 */

static void snd_miro_proc_read(struct snd_info_entry * entry, 
			       struct snd_info_buffer *buffer)
{
	struct snd_miro *miro = (struct snd_miro *) entry->private_data;
	char* model = "unknown";

	/* miroSOUND PCM1 pro, early PCM12 */

	if ((miro->hardware == OPTi9XX_HW_82C929) &&
	    (miro->aci_vendor == 'm') && 
	    (miro->aci_product == 'A')) {
		switch(miro->aci_version) {
		case 3:
			model = "miroSOUND PCM1 pro";
			break;
		default:
			model = "miroSOUND PCM1 pro / (early) PCM12";
			break;
		}
	}

	/* miroSOUND PCM12, PCM12 (Rev. E), PCM12 pnp */

	if ((miro->hardware == OPTi9XX_HW_82C924) &&
	    (miro->aci_vendor == 'm') && 
	    (miro->aci_product == 'B')) {
		switch(miro->aci_version) {
		case 4:
			model = "miroSOUND PCM12";
			break;
		case 176:
			model = "miroSOUND PCM12 (Rev. E)";
			break;
		default:
			model = "miroSOUND PCM12 / PCM12 pnp";
			break;
		}
	}

	/* miroSOUND PCM20 radio */

	if ((miro->hardware == OPTi9XX_HW_82C924) &&
	    (miro->aci_vendor == 'm') && 
	    (miro->aci_product == 'C')) {
		switch(miro->aci_version) {
		case 7:
			model = "miroSOUND PCM20 radio (Rev. E)";
			break;
		default:
			model = "miroSOUND PCM20 radio";
			break;
		}
	}

	snd_iprintf(buffer, "\nGeneral information:\n");
	snd_iprintf(buffer, "  model   : %s\n", model);
	snd_iprintf(buffer, "  opti    : %s\n", miro->name);
	snd_iprintf(buffer, "  codec   : %s\n", miro->pcm->name);
	snd_iprintf(buffer, "  port    : 0x%lx\n", miro->wss_base);
	snd_iprintf(buffer, "  irq     : %d\n", miro->irq);
	snd_iprintf(buffer, "  dma     : %d,%d\n\n", miro->dma1, miro->dma2);

	snd_iprintf(buffer, "MPU-401:\n");
	snd_iprintf(buffer, "  port    : 0x%lx\n", miro->mpu_port);
	snd_iprintf(buffer, "  irq     : %d\n\n", miro->mpu_irq);

	snd_iprintf(buffer, "ACI information:\n");
	snd_iprintf(buffer, "  vendor  : ");
	switch(miro->aci_vendor) {
	case 'm':
		snd_iprintf(buffer, "Miro\n");
		break;
	default:
		snd_iprintf(buffer, "unknown (0x%x)\n", miro->aci_vendor);
		break;
	}

	snd_iprintf(buffer, "  product : ");
	switch(miro->aci_product) {
	case 'A':
		snd_iprintf(buffer, "miroSOUND PCM1 pro / (early) PCM12\n");
		break;
	case 'B':
		snd_iprintf(buffer, "miroSOUND PCM12\n");
		break;
	case 'C':
		snd_iprintf(buffer, "miroSOUND PCM20 radio\n");
		break;
	default:
		snd_iprintf(buffer, "unknown (0x%x)\n", miro->aci_product);
		break;
	}

	snd_iprintf(buffer, "  firmware: %d (0x%x)\n",
		    miro->aci_version, miro->aci_version);
	snd_iprintf(buffer, "  port    : 0x%lx-0x%lx\n", 
		    miro->aci_port, miro->aci_port+2);
	snd_iprintf(buffer, "  wss     : 0x%x\n", wss);
	snd_iprintf(buffer, "  ide     : 0x%x\n", ide);
	snd_iprintf(buffer, "  solomode: 0x%x\n", miro->aci_solomode);
	snd_iprintf(buffer, "  amp     : 0x%x\n", miro->aci_amp);
	snd_iprintf(buffer, "  preamp  : 0x%x\n", miro->aci_preamp);
}

static void __devinit snd_miro_proc_init(struct snd_miro * miro)
{
	struct snd_info_entry *entry;

	if (! snd_card_proc_new(miro->card, "miro", &entry))
		snd_info_set_text_ops(entry, miro, snd_miro_proc_read);
}

/*