void snd_msnd_dsp_halt(struct snd_msnd *chip, struct file *file)
{
if ((file ? file->f_mode : chip->mode) & FMODE_READ) {
clear_bit(F_READING, &chip->flags);
snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP);
snd_msnd_disable_irq(chip);
if (file) {
snd_printd(KERN_INFO LOGNAME
": Stopping read for %p\n", file);
chip->mode &= ~FMODE_READ;
}
clear_bit(F_AUDIO_READ_INUSE, &chip->flags);
}
if ((file ? file->f_mode : chip->mode) & FMODE_WRITE) {
if (test_bit(F_WRITING, &chip->flags)) {
snd_msnd_dsp_write_flush(chip);
snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP);
}
snd_msnd_disable_irq(chip);
if (file) {
snd_printd(KERN_INFO
LOGNAME ": Stopping write for %p\n", file);
chip->mode &= ~FMODE_WRITE;
}
clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags);
}
}
static int snd_msnd_send_dsp_cmd_chk(struct snd_msnd *chip, u8 cmd)
{
if (snd_msnd_send_dsp_cmd(chip, cmd) == 0)
return 0;
snd_msnd_dsp_full_reset(chip->card);
return snd_msnd_send_dsp_cmd(chip, cmd);
}
static int snd_msndmix_set_mux(struct snd_msnd *chip, int val)
{
unsigned newrecsrc;
int change;
unsigned char msndbyte;
switch (val) {
case 0:
newrecsrc = MSND_MASK_IMIX;
msndbyte = HDEXAR_SET_ANA_IN;
break;
case 1:
newrecsrc = MSND_MASK_SYNTH;
msndbyte = HDEXAR_SET_SYNTH_IN;
break;
case 2:
newrecsrc = MSND_MASK_DIGITAL;
msndbyte = HDEXAR_SET_DAT_IN;
break;
default:
return -EINVAL;
}
change = newrecsrc != chip->recsrc;
if (change) {
change = 0;
if (!snd_msnd_send_word(chip, 0, 0, msndbyte))
if (!snd_msnd_send_dsp_cmd(chip, HDEX_AUX_REQ)) {
chip->recsrc = newrecsrc;
change = 1;
}
}
return change;
}
int snd_msnd_DAPQ(struct snd_msnd *chip, int start)
{
u16 DAPQ_tail;
int protect = start, nbanks = 0;
void *DAQD;
static int play_banks_submitted;
/* unsigned long flags;
spin_lock_irqsave(&chip->lock, flags); not necessary */
DAPQ_tail = readw(chip->DAPQ + JQS_wTail);
while (DAPQ_tail != readw(chip->DAPQ + JQS_wHead) || start) {
int bank_num = DAPQ_tail / PCTODSP_OFFSET(DAQDS__size);
if (start) {
start = 0;
play_banks_submitted = 0;
}
/* Get our digital audio queue struct */
DAQD = bank_num * DAQDS__size + chip->mappedbase +
DAPQ_DATA_BUFF;
/* Write size of this bank */
writew(chip->play_period_bytes, DAQD + DAQDS_wSize);
if (play_banks_submitted < 3)
++play_banks_submitted;
else if (chip->playPeriods == 2) {
unsigned short offset = chip->play_period_bytes;
if (readw(DAQD + DAQDS_wStart) != PCTODSP_BASED(0x0))
offset = 0;
writew(PCTODSP_BASED(offset), DAQD + DAQDS_wStart);
}
++nbanks;
/* Then advance the tail */
/*
if (protect)
snd_printd(KERN_INFO "B %X %lX\n",
bank_num, xtime.tv_usec);
*/
DAPQ_tail = (++bank_num % 3) * PCTODSP_OFFSET(DAQDS__size);
writew(DAPQ_tail, chip->DAPQ + JQS_wTail);
/* Tell the DSP to play the bank */
snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_START);
if (protect)
if (2 == bank_num)
break;
}
/*
if (protect)
snd_printd(KERN_INFO "%lX\n", xtime.tv_usec);
*/
/* spin_unlock_irqrestore(&chip->lock, flags); not necessary */
return nbanks;
}
static int snd_msnd_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_msnd *chip = snd_pcm_substream_chip(substream);
if (cmd == SNDRV_PCM_TRIGGER_START) {
chip->last_recbank = -1;
set_bit(F_READING, &chip->flags);
if (snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_START) == 0)
return 0;
clear_bit(F_READING, &chip->flags);
} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
clear_bit(F_READING, &chip->flags);
snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP);
return 0;
}
return -EINVAL;
}
static int snd_msndmidi_input_close(struct snd_rawmidi_substream *substream)
{
struct snd_msndmidi *mpu;
mpu = substream->rmidi->private_data;
snd_msnd_send_dsp_cmd(mpu->dev, HDEX_MIDI_IN_STOP);
clear_bit(MSNDMIDI_MODE_BIT_INPUT, &mpu->mode);
mpu->substream_input = NULL;
snd_msnd_disable_irq(mpu->dev);
return 0;
}
/*
* input/output open/close - protected by open_mutex in rawmidi.c
*/
static int snd_msndmidi_input_open(struct snd_rawmidi_substream *substream)
{
struct snd_msndmidi *mpu;
snd_printdd("snd_msndmidi_input_open()\n");
mpu = substream->rmidi->private_data;
mpu->substream_input = substream;
snd_msnd_enable_irq(mpu->dev);
snd_msnd_send_dsp_cmd(mpu->dev, HDEX_MIDI_IN_START);
set_bit(MSNDMIDI_MODE_BIT_INPUT, &mpu->mode);
return 0;
}
static int snd_msnd_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_msnd *chip = snd_pcm_substream_chip(substream);
int result = 0;
if (cmd == SNDRV_PCM_TRIGGER_START) {
snd_printdd("snd_msnd_playback_trigger(START)\n");
chip->banksPlayed = 0;
set_bit(F_WRITING, &chip->flags);
snd_msnd_DAPQ(chip, 1);
} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
snd_printdd("snd_msnd_playback_trigger(STop)\n");
/* interrupt diagnostic, comment this out later */
clear_bit(F_WRITING, &chip->flags);
snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP);
} else {
snd_printd(KERN_ERR "snd_msnd_playback_trigger(?????)\n");
result = -EINVAL;
}
snd_printdd("snd_msnd_playback_trigger() ENDE\n");
return result;
}
static void snd_msnd_mpu401_close(struct snd_mpu401 *mpu)
{
snd_msnd_send_dsp_cmd(mpu->private_data, HDEX_MIDI_IN_STOP);
snd_msnd_disable_irq(mpu->private_data);
}
/*
* ALSA callback function, called when attempting to open the MIDI device.
*/
static int snd_msnd_mpu401_open(struct snd_mpu401 *mpu)
{
snd_msnd_enable_irq(mpu->private_data);
snd_msnd_send_dsp_cmd(mpu->private_data, HDEX_MIDI_IN_START);
return 0;
}
static int snd_msndmix_set(struct snd_msnd *dev, int d, int left, int right)
{
int bLeft, bRight;
int wLeft, wRight;
int updatemaster = 0;
if (d >= LEVEL_ENTRIES)
return -EINVAL;
bLeft = left * 0xff / 100;
wLeft = left * 0xffff / 100;
bRight = right * 0xff / 100;
wRight = right * 0xffff / 100;
dev->left_levels[d] = wLeft;
dev->right_levels[d] = wRight;
switch (d) {
/* master volume unscaled controls */
case MSND_MIXER_LINE: /* line pot control */
/* scaled by IMIX in digital mix */
writeb(bLeft, dev->SMA + SMA_bInPotPosLeft);
writeb(bRight, dev->SMA + SMA_bInPotPosRight);
if (snd_msnd_send_word(dev, 0, 0, HDEXAR_IN_SET_POTS) == 0)
snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
break;
case MSND_MIXER_MIC: /* mic pot control */
if (dev->type == msndClassic)
return -EINVAL;
/* scaled by IMIX in digital mix */
writeb(bLeft, dev->SMA + SMA_bMicPotPosLeft);
writeb(bRight, dev->SMA + SMA_bMicPotPosRight);
if (snd_msnd_send_word(dev, 0, 0, HDEXAR_MIC_SET_POTS) == 0)
snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
break;
case MSND_MIXER_VOLUME: /* master volume */
writew(wLeft, dev->SMA + SMA_wCurrMastVolLeft);
writew(wRight, dev->SMA + SMA_wCurrMastVolRight);
/* fall through */
case MSND_MIXER_AUX: /* aux pot control */
/* scaled by master volume */
/* fall through */
/* digital controls */
case MSND_MIXER_SYNTH: /* synth vol (dsp mix) */
case MSND_MIXER_PCM: /* pcm vol (dsp mix) */
case MSND_MIXER_IMIX: /* input monitor (dsp mix) */
/* scaled by master volume */
updatemaster = 1;
break;
default:
return -EINVAL;
}
if (updatemaster) {
/* update master volume scaled controls */
update_volm(MSND_MIXER_PCM, wCurrPlayVol);
update_volm(MSND_MIXER_IMIX, wCurrInVol);
if (dev->type == msndPinnacle)
update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
}
return 0;
}
