static int __devinit jazz16_detect_board(unsigned long port,
unsigned long mpu_port)
{
int err;
int val;
struct snd_sb chip;
if (!request_region(port, 0x10, "jazz16")) {
snd_printk(KERN_ERR "I/O port region is already in use.\n");
return -EBUSY;
}
/* just to call snd_sbdsp_command/reset/get_byte() */
chip.port = port;
err = snd_sbdsp_reset(&chip);
if (err < 0)
for (val = 0; val < 4; val++) {
err = jazz16_configure_ports(port, mpu_port, val);
if (err < 0)
break;
err = snd_sbdsp_reset(&chip);
if (!err)
break;
}
if (err < 0) {
err = -ENODEV;
goto err_unmap;
}
if (!snd_sbdsp_command(&chip, SB_DSP_GET_JAZZ_BRD_REV)) {
err = -EBUSY;
goto err_unmap;
}
val = snd_sbdsp_get_byte(&chip);
if (val >= 0x30)
snd_sbdsp_get_byte(&chip);
if ((val & 0xf0) != 0x10) {
err = -ENODEV;
goto err_unmap;
}
if (!snd_sbdsp_command(&chip, SB_DSP_GET_JAZZ_MODEL)) {
err = -EBUSY;
goto err_unmap;
}
snd_sbdsp_get_byte(&chip);
err = snd_sbdsp_get_byte(&chip);
snd_printd("Media Vision Jazz16 board detected: rev 0x%x, model 0x%x\n",
val, err);
err = 0;
err_unmap:
release_region(port, 0x10);
return err;
}
static int snd_sb8dsp_midi_output_open(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
struct snd_sb *chip;
unsigned int valid_open_flags;
chip = substream->rmidi->private_data;
valid_open_flags = chip->hardware >= SB_HW_20
? SB_OPEN_MIDI_INPUT | SB_OPEN_MIDI_INPUT_TRIGGER : 0;
spin_lock_irqsave(&chip->open_lock, flags);
if (chip->open & ~valid_open_flags) {
spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
}
chip->open |= SB_OPEN_MIDI_OUTPUT;
chip->midi_substream_output = substream;
if (!(chip->open & SB_OPEN_MIDI_INPUT)) {
spin_unlock_irqrestore(&chip->open_lock, flags);
snd_sbdsp_reset(chip); /* reset DSP */
if (chip->hardware >= SB_HW_20)
snd_sbdsp_command(chip, SB_DSP_MIDI_UART_IRQ);
} else {
spin_unlock_irqrestore(&chip->open_lock, flags);
}
return 0;
}
static int snd_sb8_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
unsigned int count;
spin_lock_irqsave(&chip->reg_lock, flags);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
snd_sbdsp_command(chip, chip->playback_format);
if (chip->playback_format == SB_DSP_OUTPUT) {
count = chip->p_period_size - 1;
snd_sbdsp_command(chip, count & 0xff);
snd_sbdsp_command(chip, count >> 8);
}
break;
case SNDRV_PCM_TRIGGER_STOP:
if (chip->playback_format == SB_DSP_HI_OUTPUT_AUTO) {
struct snd_pcm_runtime *runtime = substream->runtime;
snd_sbdsp_reset(chip);
if (runtime->channels > 1) {
spin_lock(&chip->mixer_lock);
/* restore output filter and set hardware to mono mode */
snd_sbmixer_write(chip, SB_DSP_STEREO_SW, chip->force_mode16 & ~0x02);
spin_unlock(&chip->mixer_lock);
}
} else {
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
}
snd_sbdsp_command(chip, SB_DSP_SPEAKER_OFF);
}
static int snd_jazz16_resume(struct device *pdev, unsigned int n)
{
struct snd_card *card = dev_get_drvdata(pdev);
struct snd_card_jazz16 *acard = card->private_data;
struct snd_sb *chip = acard->chip;
snd_sbdsp_reset(chip);
snd_sbmixer_resume(chip);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
static int snd_sb8_resume(struct platform_device *dev)
{
struct snd_card *card = platform_get_drvdata(dev);
struct snd_sb8 *acard = card->private_data;
struct snd_sb *chip = acard->chip;
snd_sbdsp_reset(chip);
snd_sbmixer_resume(chip);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
static int snd_sb8dsp_midi_output_close(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
struct snd_sb *chip;
chip = substream->rmidi->private_data;
spin_lock_irqsave(&chip->open_lock, flags);
chip->open &= ~(SB_OPEN_MIDI_OUTPUT | SB_OPEN_MIDI_OUTPUT_TRIGGER);
chip->midi_substream_output = NULL;
if (!(chip->open & SB_OPEN_MIDI_INPUT)) {
spin_unlock_irqrestore(&chip->open_lock, flags);
snd_sbdsp_reset(chip); /* reset DSP */
} else {
spin_unlock_irqrestore(&chip->open_lock, flags);
}
return 0;
}
static int snd_sbdsp_probe(struct snd_sb * chip)
{
int version;
int major, minor;
char *str;
unsigned long flags;
/*
* initialization sequence
*/
spin_lock_irqsave(&chip->reg_lock, flags);
if (snd_sbdsp_reset(chip) < 0) {
spin_unlock_irqrestore(&chip->reg_lock, flags);
return -ENODEV;
}
version = snd_sbdsp_version(chip);
if (version < 0) {
spin_unlock_irqrestore(&chip->reg_lock, flags);
return -ENODEV;
}
spin_unlock_irqrestore(&chip->reg_lock, flags);
major = version >> 8;
minor = version & 0xff;
snd_printdd("SB [0x%lx]: DSP chip found, version = %i.%i\n",
chip->port, major, minor);
switch (chip->hardware) {
case SB_HW_AUTO:
switch (major) {
case 1:
chip->hardware = SB_HW_10;
str = "1.0";
break;
case 2:
if (minor) {
chip->hardware = SB_HW_201;
str = "2.01+";
} else {
chip->hardware = SB_HW_20;
str = "2.0";
}
break;
case 3:
chip->hardware = SB_HW_PRO;
str = "Pro";
break;
case 4:
chip->hardware = SB_HW_16;
str = "16";
break;
default:
snd_printk(KERN_INFO "SB [0x%lx]: unknown DSP chip version %i.%i\n",
chip->port, major, minor);
return -ENODEV;
}
break;
case SB_HW_ALS100:
str = "16 (ALS-100)";
break;
case SB_HW_ALS4000:
str = "16 (ALS-4000)";
break;
case SB_HW_DT019X:
str = "(DT019X/ALS007)";
break;
default:
return -ENODEV;
}
sprintf(chip->name, "Sound Blaster %s", str);
chip->version = (major << 8) | minor;
return 0;
}