Ejemplo n.º 1
0
static int snd_opl4_detect(struct snd_opl4 *opl4)
{
	u8 id1, id2;

	snd_opl4_enable_opl4(opl4);

	id1 = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION);
	snd_printdd("OPL4[02]=%02x\n", id1);
	switch (id1 & OPL4_DEVICE_ID_MASK) {
	case 0x20:
		opl4->hardware = OPL3_HW_OPL4;
		break;
	case 0x40:
		opl4->hardware = OPL3_HW_OPL4_ML;
		break;
	default:
		return -ENODEV;
	}

	snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_FM, 0x00);
	snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_PCM, 0xff);
	id1 = snd_opl4_read(opl4, OPL4_REG_MIX_CONTROL_FM);
	id2 = snd_opl4_read(opl4, OPL4_REG_MIX_CONTROL_PCM);
	snd_printdd("OPL4 id1=%02x id2=%02x\n", id1, id2);
       	if (id1 != 0x00 || id2 != 0xff)
		return -ENODEV;

	snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_FM, 0x3f);
	snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_PCM, 0x3f);
	snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, 0x00);
	return 0;
}
Ejemplo n.º 2
0
void snd_opl4_read_memory(opl4_t *opl4, char *buf, int offset, int size)
{
	u8 memcfg = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION);
	snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg | OPL4_MODE_BIT);

	snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_HIGH, offset >> 16);
	snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_MID, offset >> 8);
	snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_LOW, offset);
	for (; size > 0; size--)
		*buf++ = snd_opl4_read(opl4, OPL4_REG_MEMORY_DATA);

	snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg);
}
Ejemplo n.º 3
0
static int snd_opl4_ctl_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
    opl4_t *opl4 = snd_kcontrol_chip(kcontrol);
    u8 reg = kcontrol->private_value;
    u8 value;

    value = snd_opl4_read(opl4, reg);
    ucontrol->value.integer.value[0] = 7 - (value & 7);
    ucontrol->value.integer.value[1] = 7 - ((value >> 3) & 7);
    return 0;
}
Ejemplo n.º 4
0
static int snd_opl4_ctl_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
    opl4_t *opl4 = snd_kcontrol_chip(kcontrol);
    u8 reg = kcontrol->private_value;
    u8 value, old_value;

    value = (7 - (ucontrol->value.integer.value[0] & 7)) |
            ((7 - (ucontrol->value.integer.value[1] & 7)) << 3);
    old_value = snd_opl4_read(opl4, reg);
    snd_opl4_write(opl4, reg, value);
    return value != old_value;
}
Ejemplo n.º 5
0
static int snd_opl4_ctl_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	opl4_t *opl4 = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	u8 reg = kcontrol->private_value;
	u8 value;

	spin_lock_irqsave(&opl4->reg_lock, flags);
	value = snd_opl4_read(opl4, reg);
	spin_unlock_irqrestore(&opl4->reg_lock, flags);
	ucontrol->value.integer.value[0] = 7 - (value & 7);
	ucontrol->value.integer.value[1] = 7 - ((value >> 3) & 7);
	return 0;
}
Ejemplo n.º 6
0
static int snd_opl4_ctl_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	opl4_t *opl4 = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	u8 reg = kcontrol->private_value;
	u8 value, old_value;

	value = (7 - (ucontrol->value.integer.value[0] & 7)) |
		((7 - (ucontrol->value.integer.value[1] & 7)) << 3);
	spin_lock_irqsave(&opl4->reg_lock, flags);
	old_value = snd_opl4_read(opl4, reg);
	snd_opl4_write(opl4, reg, value);
	spin_unlock_irqrestore(&opl4->reg_lock, flags);
	return value != old_value;
}
Ejemplo n.º 7
0
void snd_opl4_write_memory(struct snd_opl4 *opl4, const char *buf, int offset, int size)
{
	unsigned long flags;
	u8 memcfg;

	spin_lock_irqsave(&opl4->reg_lock, flags);

	memcfg = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION);
	snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg | OPL4_MODE_BIT);

	snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_HIGH, offset >> 16);
	snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_MID, offset >> 8);
	snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_LOW, offset);

	snd_opl4_wait(opl4);
	outb(OPL4_REG_MEMORY_DATA, opl4->pcm_port);
	snd_opl4_wait(opl4);
	outsb(opl4->pcm_port + 1, buf, size);

	snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg);

	spin_unlock_irqrestore(&opl4->reg_lock, flags);
}