static int snd_pcsp_playback_hw_free(struct snd_pcm_substream *substream)
{
struct snd_pcsp *chip = snd_pcm_substream_chip(substream);
#if PCSP_DEBUG
printk(KERN_INFO "PCSP: hw_free called\n");
#endif
pcsp_sync_stop(chip);
return snd_pcm_lib_free_pages(substream);
}
static int snd_pcsp_playback_close(struct snd_pcm_substream *substream)
{
struct snd_pcsp *chip = snd_pcm_substream_chip(substream);
#if PCSP_DEBUG
printk(KERN_INFO "PCSP: close called\n");
#endif
pcsp_sync_stop(chip);
chip->playback_substream = NULL;
return 0;
}
static int snd_pcsp_playback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_pcsp *chip = snd_pcm_substream_chip(substream);
int err;
pcsp_sync_stop(chip);
err = snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
if (err < 0)
return err;
return 0;
}
static int snd_pcsp_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcsp *chip = snd_pcm_substream_chip(substream);
#if PCSP_DEBUG
printk(KERN_INFO "PCSP: prepare called, "
"size=%zi psize=%zi f=%zi f1=%i\n",
snd_pcm_lib_buffer_bytes(substream),
snd_pcm_lib_period_bytes(substream),
snd_pcm_lib_buffer_bytes(substream) /
snd_pcm_lib_period_bytes(substream),
substream->runtime->periods);
#endif
pcsp_sync_stop(chip);
chip->playback_ptr = 0;
chip->period_ptr = 0;
chip->fmt_size =
snd_pcm_format_physical_width(substream->runtime->format) >> 3;
chip->is_signed = snd_pcm_format_signed(substream->runtime->format);
return 0;
}
static void pcsp_stop_beep(struct snd_pcsp *chip)
{
pcsp_sync_stop(chip);
pcspkr_stop_sound();
}
