C++ (Cpp) snd_opl4_writeの例

コード例 #1

ファイル: opl4_lib.c プロジェクト: xricson/knoppix

void snd_opl4_write_memory(opl4_t *opl4, const 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--)
		snd_opl4_write(opl4, OPL4_REG_MEMORY_DATA, *buf++);

	snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg);
}

コード例 #2

ファイル: opl4_mixer.c プロジェクト: iPodLinux/linux-2.6.7-ipod

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;
}

コード例 #3

ファイル: opl4_lib.c プロジェクト: 020gzh/linux

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);
}

コード例 #4

ファイル: opl4_mixer.c プロジェクト: Antonio-Zhou/Linux-2.6.11

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;
}