/* * set sampling rate according to the substream */ static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream) { struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream); struct snd_ps3_avsetting_info avs; avs = card->avs; pr_debug("%s: called freq=%d width=%d\n", __func__, substream->runtime->rate, snd_pcm_format_width(substream->runtime->format)); pr_debug("%s: before freq=%d width=%d\n", __func__, card->avs.avs_audio_rate, card->avs.avs_audio_width); /* sample rate */ switch (substream->runtime->rate) { case 44100: avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K; break; case 48000: avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K; break; case 88200: avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K; break; case 96000: avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K; break; default: pr_info("%s: invalid rate %d\n", __func__, substream->runtime->rate); return 1; } /* width */ switch (snd_pcm_format_width(substream->runtime->format)) { case 16: avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16; break; case 24: avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24; break; default: pr_info("%s: invalid width %d\n", __func__, snd_pcm_format_width(substream->runtime->format)); return 1; } if ((card->avs.avs_audio_width != avs.avs_audio_width) || (card->avs.avs_audio_rate != avs.avs_audio_rate)) { card->avs = avs; snd_ps3_change_avsetting(card); pr_debug("%s: after freq=%d width=%d\n", __func__, card->avs.avs_audio_rate, card->avs.avs_audio_width); return 0; } else return 1; }
static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card) { int ret; pr_debug("%s: start\n", __func__); card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2; card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K; card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16; card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM; card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL; ret = snd_ps3_change_avsetting(card); snd_ps3_audio_fixup(card); /* to start to generate SPDIF signal, fill data */ snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL); snd_ps3_kick_dma(card); pr_debug("%s: end\n", __func__); return ret; }
/* * set sampling rate according to the substream */ static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream) { struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream); struct snd_ps3_avsetting_info avs; int ret; avs = card->avs; pr_debug("%s: called freq=%d width=%d\n", __func__, substream->runtime->rate, snd_pcm_format_width(substream->runtime->format)); pr_debug("%s: before freq=%d width=%d\n", __func__, card->avs.avs_audio_rate, card->avs.avs_audio_width); /* sample rate */ switch (substream->runtime->rate) { case 44100: avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K; break; case 48000: avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K; break; case 88200: avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K; break; case 96000: avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K; break; default: pr_info("%s: invalid rate %d\n", __func__, substream->runtime->rate); return 1; } /* width */ switch (snd_pcm_format_width(substream->runtime->format)) { case 16: avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16; break; case 24: avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24; break; default: pr_info("%s: invalid width %d\n", __func__, snd_pcm_format_width(substream->runtime->format)); return 1; } memcpy(avs.avs_cs_info, ps3av_mode_cs_info, 8); if (memcmp(&card->avs, &avs, sizeof(avs))) { pr_debug("%s: after freq=%d width=%d\n", __func__, card->avs.avs_audio_rate, card->avs.avs_audio_width); card->avs = avs; snd_ps3_change_avsetting(card); ret = 0; } else ret = 1; /* check CS non-audio bit and mute accordingly */ if (avs.avs_cs_info[0] & 0x02) ps3av_audio_mute_analog(1); /* mute if non-audio */ else ps3av_audio_mute_analog(0); return ret; }