550 lines
16 KiB
C
550 lines
16 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* Vortex PCM ALSA driver.
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*
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* Supports ADB and WT DMA. Unfortunately, WT channels do not run yet.
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* It remains stuck,and DMA transfers do not happen.
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*/
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#include <sound/asoundef.h>
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#include <linux/time.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include "au88x0.h"
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#define VORTEX_PCM_TYPE(x) (x->name[40])
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/* hardware definition */
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static struct snd_pcm_hardware snd_vortex_playback_hw_adb = {
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.info =
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(SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
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SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_MMAP_VALID),
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.formats =
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SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
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SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW,
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.rates = SNDRV_PCM_RATE_CONTINUOUS,
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.rate_min = 5000,
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.rate_max = 48000,
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.channels_min = 1,
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#ifdef CHIP_AU8830
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.channels_max = 4,
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#else
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.channels_max = 2,
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#endif
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.buffer_bytes_max = 0x10000,
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.period_bytes_min = 0x1,
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.period_bytes_max = 0x1000,
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.periods_min = 2,
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.periods_max = 32,
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};
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#ifndef CHIP_AU8820
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static struct snd_pcm_hardware snd_vortex_playback_hw_a3d = {
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.info =
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(SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
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SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_MMAP_VALID),
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.formats =
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SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
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SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW,
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.rates = SNDRV_PCM_RATE_CONTINUOUS,
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.rate_min = 5000,
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.rate_max = 48000,
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.channels_min = 1,
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.channels_max = 1,
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.buffer_bytes_max = 0x10000,
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.period_bytes_min = 0x100,
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.period_bytes_max = 0x1000,
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.periods_min = 2,
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.periods_max = 64,
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};
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#endif
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static struct snd_pcm_hardware snd_vortex_playback_hw_spdif = {
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.info =
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(SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
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SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_MMAP_VALID),
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.formats =
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SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
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SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | SNDRV_PCM_FMTBIT_MU_LAW |
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SNDRV_PCM_FMTBIT_A_LAW,
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.rates =
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SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
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.rate_min = 32000,
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.rate_max = 48000,
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.channels_min = 1,
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.channels_max = 2,
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.buffer_bytes_max = 0x10000,
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.period_bytes_min = 0x100,
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.period_bytes_max = 0x1000,
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.periods_min = 2,
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.periods_max = 64,
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};
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#ifndef CHIP_AU8810
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static struct snd_pcm_hardware snd_vortex_playback_hw_wt = {
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.info = (SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS, // SNDRV_PCM_RATE_48000,
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.rate_min = 8000,
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.rate_max = 48000,
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.channels_min = 1,
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.channels_max = 2,
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.buffer_bytes_max = 0x10000,
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.period_bytes_min = 0x0400,
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.period_bytes_max = 0x1000,
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.periods_min = 2,
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.periods_max = 64,
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};
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#endif
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/* open callback */
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static int snd_vortex_pcm_open(struct snd_pcm_substream *substream)
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{
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vortex_t *vortex = snd_pcm_substream_chip(substream);
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struct snd_pcm_runtime *runtime = substream->runtime;
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int err;
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/* Force equal size periods */
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if ((err =
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snd_pcm_hw_constraint_integer(runtime,
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SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
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return err;
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/* Avoid PAGE_SIZE boundary to fall inside of a period. */
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if ((err =
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snd_pcm_hw_constraint_pow2(runtime, 0,
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SNDRV_PCM_HW_PARAM_PERIOD_BYTES)) < 0)
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return err;
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
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#ifndef CHIP_AU8820
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if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_A3D) {
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runtime->hw = snd_vortex_playback_hw_a3d;
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}
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#endif
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if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_SPDIF) {
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runtime->hw = snd_vortex_playback_hw_spdif;
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switch (vortex->spdif_sr) {
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case 32000:
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runtime->hw.rates = SNDRV_PCM_RATE_32000;
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break;
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case 44100:
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runtime->hw.rates = SNDRV_PCM_RATE_44100;
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break;
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case 48000:
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runtime->hw.rates = SNDRV_PCM_RATE_48000;
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break;
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}
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}
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if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB
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|| VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_I2S)
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runtime->hw = snd_vortex_playback_hw_adb;
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substream->runtime->private_data = NULL;
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}
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#ifndef CHIP_AU8810
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else {
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runtime->hw = snd_vortex_playback_hw_wt;
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substream->runtime->private_data = NULL;
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}
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#endif
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return 0;
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}
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/* close callback */
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static int snd_vortex_pcm_close(struct snd_pcm_substream *substream)
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{
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//vortex_t *chip = snd_pcm_substream_chip(substream);
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stream_t *stream = (stream_t *) substream->runtime->private_data;
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// the hardware-specific codes will be here
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if (stream != NULL) {
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stream->substream = NULL;
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stream->nr_ch = 0;
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}
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substream->runtime->private_data = NULL;
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return 0;
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}
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/* hw_params callback */
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static int
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snd_vortex_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params)
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{
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vortex_t *chip = snd_pcm_substream_chip(substream);
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stream_t *stream = (stream_t *) (substream->runtime->private_data);
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struct snd_sg_buf *sgbuf;
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int err;
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// Alloc buffer memory.
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err =
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snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
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if (err < 0) {
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printk(KERN_ERR "Vortex: pcm page alloc failed!\n");
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return err;
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}
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//sgbuf = (struct snd_sg_buf *) substream->runtime->dma_private;
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sgbuf = snd_pcm_substream_sgbuf(substream);
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/*
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printk(KERN_INFO "Vortex: periods %d, period_bytes %d, channels = %d\n", params_periods(hw_params),
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params_period_bytes(hw_params), params_channels(hw_params));
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*/
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spin_lock_irq(&chip->lock);
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// Make audio routes and config buffer DMA.
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
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int dma, type = VORTEX_PCM_TYPE(substream->pcm);
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/* Dealloc any routes. */
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if (stream != NULL)
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vortex_adb_allocroute(chip, stream->dma,
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stream->nr_ch, stream->dir,
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stream->type);
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/* Alloc routes. */
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dma =
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vortex_adb_allocroute(chip, -1,
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params_channels(hw_params),
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substream->stream, type);
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if (dma < 0) {
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spin_unlock_irq(&chip->lock);
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return dma;
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}
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stream = substream->runtime->private_data = &chip->dma_adb[dma];
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stream->substream = substream;
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/* Setup Buffers. */
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vortex_adbdma_setbuffers(chip, dma, sgbuf,
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params_period_bytes(hw_params),
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params_periods(hw_params));
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}
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#ifndef CHIP_AU8810
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else {
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/* if (stream != NULL)
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vortex_wt_allocroute(chip, substream->number, 0); */
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vortex_wt_allocroute(chip, substream->number,
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params_channels(hw_params));
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stream = substream->runtime->private_data =
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&chip->dma_wt[substream->number];
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stream->dma = substream->number;
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stream->substream = substream;
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vortex_wtdma_setbuffers(chip, substream->number, sgbuf,
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params_period_bytes(hw_params),
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params_periods(hw_params));
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}
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#endif
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spin_unlock_irq(&chip->lock);
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return 0;
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}
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/* hw_free callback */
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static int snd_vortex_pcm_hw_free(struct snd_pcm_substream *substream)
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{
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vortex_t *chip = snd_pcm_substream_chip(substream);
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stream_t *stream = (stream_t *) (substream->runtime->private_data);
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spin_lock_irq(&chip->lock);
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// Delete audio routes.
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
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if (stream != NULL)
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vortex_adb_allocroute(chip, stream->dma,
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stream->nr_ch, stream->dir,
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stream->type);
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}
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#ifndef CHIP_AU8810
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else {
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if (stream != NULL)
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vortex_wt_allocroute(chip, stream->dma, 0);
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}
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#endif
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substream->runtime->private_data = NULL;
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spin_unlock_irq(&chip->lock);
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return snd_pcm_lib_free_pages(substream);
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}
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/* prepare callback */
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static int snd_vortex_pcm_prepare(struct snd_pcm_substream *substream)
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{
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vortex_t *chip = snd_pcm_substream_chip(substream);
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struct snd_pcm_runtime *runtime = substream->runtime;
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stream_t *stream = (stream_t *) substream->runtime->private_data;
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int dma = stream->dma, fmt, dir;
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// set up the hardware with the current configuration.
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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dir = 1;
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else
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dir = 0;
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fmt = vortex_alsafmt_aspfmt(runtime->format);
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spin_lock_irq(&chip->lock);
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
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vortex_adbdma_setmode(chip, dma, 1, dir, fmt, 0 /*? */ ,
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0);
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vortex_adbdma_setstartbuffer(chip, dma, 0);
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_SPDIF)
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vortex_adb_setsrc(chip, dma, runtime->rate, dir);
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}
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#ifndef CHIP_AU8810
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else {
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vortex_wtdma_setmode(chip, dma, 1, fmt, 0, 0);
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// FIXME: Set rate (i guess using vortex_wt_writereg() somehow).
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vortex_wtdma_setstartbuffer(chip, dma, 0);
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}
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#endif
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spin_unlock_irq(&chip->lock);
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return 0;
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}
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/* trigger callback */
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static int snd_vortex_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
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{
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vortex_t *chip = snd_pcm_substream_chip(substream);
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stream_t *stream = (stream_t *) substream->runtime->private_data;
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int dma = stream->dma;
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spin_lock(&chip->lock);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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// do something to start the PCM engine
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//printk(KERN_INFO "vortex: start %d\n", dma);
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stream->fifo_enabled = 1;
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
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vortex_adbdma_resetup(chip, dma);
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vortex_adbdma_startfifo(chip, dma);
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}
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#ifndef CHIP_AU8810
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else {
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printk(KERN_INFO "vortex: wt start %d\n", dma);
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vortex_wtdma_startfifo(chip, dma);
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}
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#endif
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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// do something to stop the PCM engine
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//printk(KERN_INFO "vortex: stop %d\n", dma);
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stream->fifo_enabled = 0;
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
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vortex_adbdma_pausefifo(chip, dma);
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//vortex_adbdma_stopfifo(chip, dma);
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#ifndef CHIP_AU8810
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else {
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printk(KERN_INFO "vortex: wt stop %d\n", dma);
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vortex_wtdma_stopfifo(chip, dma);
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}
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#endif
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break;
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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//printk(KERN_INFO "vortex: pause %d\n", dma);
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
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vortex_adbdma_pausefifo(chip, dma);
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#ifndef CHIP_AU8810
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else
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vortex_wtdma_pausefifo(chip, dma);
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#endif
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break;
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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//printk(KERN_INFO "vortex: resume %d\n", dma);
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
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vortex_adbdma_resumefifo(chip, dma);
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#ifndef CHIP_AU8810
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else
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vortex_wtdma_resumefifo(chip, dma);
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#endif
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break;
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default:
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spin_unlock(&chip->lock);
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return -EINVAL;
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}
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spin_unlock(&chip->lock);
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return 0;
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}
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/* pointer callback */
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static snd_pcm_uframes_t snd_vortex_pcm_pointer(struct snd_pcm_substream *substream)
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{
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vortex_t *chip = snd_pcm_substream_chip(substream);
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stream_t *stream = (stream_t *) substream->runtime->private_data;
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int dma = stream->dma;
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snd_pcm_uframes_t current_ptr = 0;
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spin_lock(&chip->lock);
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if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
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current_ptr = vortex_adbdma_getlinearpos(chip, dma);
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#ifndef CHIP_AU8810
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else
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current_ptr = vortex_wtdma_getlinearpos(chip, dma);
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#endif
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//printk(KERN_INFO "vortex: pointer = 0x%x\n", current_ptr);
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spin_unlock(&chip->lock);
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return (bytes_to_frames(substream->runtime, current_ptr));
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}
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/* Page callback. */
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/*
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static struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigned long offset) {
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}
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*/
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/* operators */
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static struct snd_pcm_ops snd_vortex_playback_ops = {
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.open = snd_vortex_pcm_open,
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.close = snd_vortex_pcm_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = snd_vortex_pcm_hw_params,
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.hw_free = snd_vortex_pcm_hw_free,
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.prepare = snd_vortex_pcm_prepare,
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.trigger = snd_vortex_pcm_trigger,
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.pointer = snd_vortex_pcm_pointer,
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.page = snd_pcm_sgbuf_ops_page,
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};
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/*
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* definitions of capture are omitted here...
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*/
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static char *vortex_pcm_prettyname[VORTEX_PCM_LAST] = {
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"AU88x0 ADB",
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"AU88x0 SPDIF",
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"AU88x0 A3D",
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"AU88x0 WT",
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"AU88x0 I2S",
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};
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static char *vortex_pcm_name[VORTEX_PCM_LAST] = {
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"adb",
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"spdif",
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"a3d",
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"wt",
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"i2s",
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};
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/* SPDIF kcontrol */
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static int snd_vortex_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
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uinfo->count = 1;
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return 0;
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}
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static int snd_vortex_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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ucontrol->value.iec958.status[0] = 0xff;
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ucontrol->value.iec958.status[1] = 0xff;
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ucontrol->value.iec958.status[2] = 0xff;
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ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
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return 0;
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}
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static int snd_vortex_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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vortex_t *vortex = snd_kcontrol_chip(kcontrol);
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ucontrol->value.iec958.status[0] = 0x00;
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ucontrol->value.iec958.status[1] = IEC958_AES1_CON_ORIGINAL|IEC958_AES1_CON_DIGDIGCONV_ID;
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ucontrol->value.iec958.status[2] = 0x00;
|
|
switch (vortex->spdif_sr) {
|
|
case 32000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_32000; break;
|
|
case 44100: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_44100; break;
|
|
case 48000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_48000; break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int snd_vortex_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
vortex_t *vortex = snd_kcontrol_chip(kcontrol);
|
|
int spdif_sr = 48000;
|
|
switch (ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) {
|
|
case IEC958_AES3_CON_FS_32000: spdif_sr = 32000; break;
|
|
case IEC958_AES3_CON_FS_44100: spdif_sr = 44100; break;
|
|
case IEC958_AES3_CON_FS_48000: spdif_sr = 48000; break;
|
|
}
|
|
if (spdif_sr == vortex->spdif_sr)
|
|
return 0;
|
|
vortex->spdif_sr = spdif_sr;
|
|
vortex_spdif_init(vortex, vortex->spdif_sr, 1);
|
|
return 1;
|
|
}
|
|
|
|
/* spdif controls */
|
|
static struct snd_kcontrol_new snd_vortex_mixer_spdif[] __devinitdata = {
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
|
|
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
|
|
.info = snd_vortex_spdif_info,
|
|
.get = snd_vortex_spdif_get,
|
|
.put = snd_vortex_spdif_put,
|
|
},
|
|
{
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ,
|
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
|
|
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
|
|
.info = snd_vortex_spdif_info,
|
|
.get = snd_vortex_spdif_mask_get
|
|
},
|
|
};
|
|
|
|
/* create a pcm device */
|
|
static int __devinit snd_vortex_new_pcm(vortex_t * chip, int idx, int nr)
|
|
{
|
|
struct snd_pcm *pcm;
|
|
struct snd_kcontrol *kctl;
|
|
int i;
|
|
int err, nr_capt;
|
|
|
|
if ((chip == 0) || (idx < 0) || (idx >= VORTEX_PCM_LAST))
|
|
return -ENODEV;
|
|
|
|
/* idx indicates which kind of PCM device. ADB, SPDIF, I2S and A3D share the
|
|
* same dma engine. WT uses it own separate dma engine whcih cant capture. */
|
|
if (idx == VORTEX_PCM_ADB)
|
|
nr_capt = nr;
|
|
else
|
|
nr_capt = 0;
|
|
if ((err =
|
|
snd_pcm_new(chip->card, vortex_pcm_prettyname[idx], idx, nr,
|
|
nr_capt, &pcm)) < 0)
|
|
return err;
|
|
strcpy(pcm->name, vortex_pcm_name[idx]);
|
|
chip->pcm[idx] = pcm;
|
|
// This is an evil hack, but it saves a lot of duplicated code.
|
|
VORTEX_PCM_TYPE(pcm) = idx;
|
|
pcm->private_data = chip;
|
|
/* set operators */
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
|
|
&snd_vortex_playback_ops);
|
|
if (idx == VORTEX_PCM_ADB)
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
|
|
&snd_vortex_playback_ops);
|
|
|
|
/* pre-allocation of Scatter-Gather buffers */
|
|
|
|
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
|
|
snd_dma_pci_data(chip->pci_dev),
|
|
0x10000, 0x10000);
|
|
|
|
if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_SPDIF) {
|
|
for (i = 0; i < ARRAY_SIZE(snd_vortex_mixer_spdif); i++) {
|
|
kctl = snd_ctl_new1(&snd_vortex_mixer_spdif[i], chip);
|
|
if (!kctl)
|
|
return -ENOMEM;
|
|
if ((err = snd_ctl_add(chip->card, kctl)) < 0)
|
|
return err;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|