static int lx_pcm_hw_free(struct snd_pcm_substream *substream) { struct lx6464es *chip = snd_pcm_substream_chip(substream); int err = 0; int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); dev_dbg(chip->card->dev, "->lx_pcm_hw_free\n"); mutex_lock(&chip->setup_mutex); if (chip->hardware_running[is_capture]) { err = lx_hardware_stop(chip, substream); if (err < 0) { dev_err(chip->card->dev, "failed to stop hardware. " "Error code %d\n", err); goto exit; } err = lx_hardware_close(chip, substream); if (err < 0) { dev_err(chip->card->dev, "failed to close hardware. " "Error code %d\n", err); goto exit; } chip->hardware_running[is_capture] = 0; } err = snd_pcm_lib_free_pages(substream); if (is_capture) chip->capture_stream.stream = 0; else chip->playback_stream.stream = 0; exit: mutex_unlock(&chip->setup_mutex); return err; }
/* hw_free callback */ static int snd_vortex_pcm_hw_free(struct snd_pcm_substream *substream) { vortex_t *chip = snd_pcm_substream_chip(substream); stream_t *stream = (stream_t *) (substream->runtime->private_data); spin_lock_irq(&chip->lock); // Delete audio routes. if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) { if (stream != NULL) vortex_adb_allocroute(chip, stream->dma, stream->nr_ch, stream->dir, stream->type); } #ifndef CHIP_AU8810 else { if (stream != NULL) vortex_wt_allocroute(chip, stream->dma, 0); } #endif substream->runtime->private_data = NULL; spin_unlock_irq(&chip->lock); return snd_pcm_lib_free_pages(substream); }
static int skl_substream_free_pages(struct hdac_bus *bus, struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); }
static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); }
static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream) { snd_pcm_lib_free_pages(substream); return 0; }
/* hw_free callback */ static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); }
static int snd_ice1712_hw_free(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); }
static int substream_free_pages(struct azx *chip, struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); }
static int sst_platform_pcm_hw_free(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); }
static int nuc900_dma_hw_free(struct snd_pcm_substream *substream) { snd_pcm_lib_free_pages(substream); return 0; }
static int snd_intelmad_hw_free(struct snd_pcm_substream *substream) { pr_debug("snd_intelmad_hw_free called\n"); return snd_pcm_lib_free_pages(substream); }
/* hw_free callback */ static int snd_bcm2835_pcm_hw_free(struct snd_pcm_substream *substream) { audio_info(" .. IN\n"); return snd_pcm_lib_free_pages(substream); }
/** * snd_intelhad_init_audio_ctrl - to initialize audio channel status * registers and confgiuration registers * * @substream:substream for which the prepare function is called * @intelhaddata:substream private data * * This function is called in the prepare callback */ int snd_intelhad_init_audio_ctrl(struct snd_pcm_substream *substream, struct snd_intelhad *intelhaddata, int flag_silence) { union aud_cfg cfg_val = {.cfg_regval = 0}; union aud_ch_status_0 ch_stat0 = {.status_0_regval = 0}; union aud_ch_status_1 ch_stat1 = {.status_1_regval = 0}; union aud_buf_config buf_cfg = {.buf_cfgval = 0}; u8 channels; int format, retval; u32 data; ch_stat0.status_0_regx.lpcm_id = (intelhaddata->aes_bits & IEC958_AES0_NONAUDIO)>>1; ch_stat0.status_0_regx.clk_acc = (intelhaddata->aes_bits & IEC958_AES3_CON_CLOCK)>>4; switch (substream->runtime->rate) { case AUD_SAMPLE_RATE_32: ch_stat0.status_0_regx.samp_freq = CH_STATUS_MAP_32KHZ; break; case AUD_SAMPLE_RATE_44_1: case AUD_SAMPLE_RATE_88_2: case AUD_SAMPLE_RATE_176_4: ch_stat0.status_0_regx.samp_freq = CH_STATUS_MAP_44KHZ; break; case AUD_SAMPLE_RATE_48: case AUD_SAMPLE_RATE_96: case HAD_MAX_RATE: ch_stat0.status_0_regx.samp_freq = CH_STATUS_MAP_48KHZ; break; default: return -EINVAL; break; } had_write_register(AUD_CH_STATUS_0, ch_stat0.status_0_regval); format = substream->runtime->format; if (format == SNDRV_PCM_FORMAT_S16_LE) { ch_stat1.status_1_regx.max_wrd_len = MAX_SMPL_WIDTH_20; ch_stat1.status_1_regx.wrd_len = SMPL_WIDTH_16BITS; } else if (format == SNDRV_PCM_FORMAT_S24_LE) { ch_stat1.status_1_regx.max_wrd_len = MAX_SMPL_WIDTH_24; ch_stat1.status_1_regx.wrd_len = SMPL_WIDTH_24BITS; } else { ch_stat1.status_1_regx.max_wrd_len = 0; ch_stat1.status_1_regx.wrd_len = 0; } had_write_register(AUD_CH_STATUS_1, ch_stat1.status_1_regval); buf_cfg.buf_cfg_regx.fifo_width = FIFO_THRESHOLD; buf_cfg.buf_cfg_regx.aud_delay = 0; had_write_register(AUD_BUF_CONFIG, buf_cfg.buf_cfgval); channels = substream->runtime->channels; switch (channels) { case 1: case 2: cfg_val.cfg_regx.num_ch = CH_STEREO; cfg_val.cfg_regx.layout = LAYOUT0; break; case 3: case 4: cfg_val.cfg_regx.num_ch = CH_THREE_FOUR; cfg_val.cfg_regx.layout = LAYOUT1; break; case 5: case 6: cfg_val.cfg_regx.num_ch = CH_FIVE_SIX; cfg_val.cfg_regx.layout = LAYOUT1; break; case 7: case 8: cfg_val.cfg_regx.num_ch = CH_SEVEN_EIGHT; cfg_val.cfg_regx.layout = LAYOUT1; break; } cfg_val.cfg_regx.val_bit = 1; had_write_register(AUD_CONFIG, cfg_val.cfg_regval); return 0; } /** * snd_intelhad_prog_dip - to initialize Data Island Packets registers * * @substream:substream for which the prepare function is called * @intelhaddata:substream private data * * This function is called in the prepare callback */ static void snd_intelhad_prog_dip(struct snd_pcm_substream *substream, struct snd_intelhad *intelhaddata, int flag_silence) { int i; union aud_ctrl_st ctrl_state = {.ctrl_val = 0}; union aud_info_frame2 frame2 = {.fr2_val = 0}; union aud_info_frame3 frame3 = {.fr3_val = 0}; u8 checksum = 0; had_write_register(AUD_CNTL_ST, ctrl_state.ctrl_val); frame2.fr2_regx.chnl_cnt = substream->runtime->channels - 1; /*TODO: Read from intelhaddata->eeld.speaker_allocation_block;*/ frame3.fr3_regx.chnl_alloc = CHANNEL_ALLOCATION; /*Calculte the byte wide checksum for all valid DIP words*/ for (i = 0; i < BYTES_PER_WORD; i++) checksum += (INFO_FRAME_WORD1 >> i*BITS_PER_BYTE) & MASK_BYTE0; for (i = 0; i < BYTES_PER_WORD; i++) checksum += (frame2.fr2_val >> i*BITS_PER_BYTE) & MASK_BYTE0; for (i = 0; i < BYTES_PER_WORD; i++) checksum += (frame3.fr3_val >> i*BITS_PER_BYTE) & MASK_BYTE0; frame2.fr2_regx.chksum = -(checksum); had_write_register(AUD_HDMIW_INFOFR, INFO_FRAME_WORD1); had_write_register(AUD_HDMIW_INFOFR, frame2.fr2_val); had_write_register(AUD_HDMIW_INFOFR, frame3.fr3_val); /* program remaining DIP words with zero */ for (i = 0; i < HAD_MAX_DIP_WORDS-VALID_DIP_WORDS; i++) had_write_register(AUD_HDMIW_INFOFR, 0x0); ctrl_state.ctrl_regx.dip_freq = 1; ctrl_state.ctrl_regx.dip_en_sta = 1; had_write_register(AUD_CNTL_ST, ctrl_state.ctrl_val); } /** * snd_intelhad_prog_buffer - programs buffer * address and length registers * * @substream:substream for which the prepare function is called * @intelhaddata:substream private data * * This function programs ring buffer address and length into registers. */ int snd_intelhad_prog_buffer(struct snd_intelhad *intelhaddata, int start, int end) { u32 ring_buf_addr, ring_buf_size, period_bytes; u8 i, num_periods; struct snd_pcm_substream *substream; substream = intelhaddata->stream_info.had_substream; if (!substream) { pr_err("substream is NULL\n"); dump_stack(); return 0; } ring_buf_addr = substream->runtime->dma_addr; ring_buf_size = snd_pcm_lib_buffer_bytes(substream); intelhaddata->stream_info.ring_buf_size = ring_buf_size; period_bytes = frames_to_bytes(substream->runtime, substream->runtime->period_size); num_periods = substream->runtime->periods; /* buffer addr should be 64 byte aligned, period bytes will be used to calculate addr offset*/ period_bytes &= ~0x3F; /* Hardware supports MAX_PERIODS buffers */ if (end >= HAD_MAX_PERIODS) return -EINVAL; for (i = start; i <= end; i++) { /* Program the buf registers with addr and len */ intelhaddata->buf_info[i].buf_addr = ring_buf_addr + (i * period_bytes); if (i < num_periods-1) intelhaddata->buf_info[i].buf_size = period_bytes; else intelhaddata->buf_info[i].buf_size = ring_buf_size - (period_bytes*i); had_write_register(AUD_BUF_A_ADDR + (i * HAD_REG_WIDTH), intelhaddata->buf_info[i].buf_addr | BIT(0) | BIT(1)); had_write_register(AUD_BUF_A_LENGTH + (i * HAD_REG_WIDTH), period_bytes); intelhaddata->buf_info[i].is_valid = true; } pr_debug("%s:buf[%d-%d] addr=%#x and size=%d\n", __func__, start, end, intelhaddata->buf_info[start].buf_addr, intelhaddata->buf_info[start].buf_size); intelhaddata->valid_buf_cnt = num_periods; return 0; } inline int snd_intelhad_read_len(struct snd_intelhad *intelhaddata) { int i, retval = 0; u32 len[4]; for (i = 0; i < 4 ; i++) { had_read_register(AUD_BUF_A_LENGTH + (i * HAD_REG_WIDTH), &len[i]); if (!len[i]) retval++; } if (retval != 1) { for (i = 0; i < 4 ; i++) pr_debug("buf[%d] size=%d\n", i, len[i]); } return retval; } /** * snd_intelhad_prog_cts - Program HDMI audio CTS value * * @aud_samp_freq: sampling frequency of audio data * @tmds: sampling frequency of the display data * @n_param: N value, depends on aud_samp_freq * @intelhaddata:substream private data * * Program CTS register based on the audio and display sampling frequency */ static void snd_intelhad_prog_cts(u32 aud_samp_freq, u32 tmds, u32 n_param, struct snd_intelhad *intelhaddata) { u32 cts_val; u64 dividend, divisor; /* Calculate CTS according to HDMI 1.3a spec*/ dividend = (u64)tmds * n_param*1000; divisor = 128 * aud_samp_freq; cts_val = div64_u64(dividend, divisor); pr_debug("TMDS value=%d, N value=%d, CTS Value=%d\n", tmds, n_param, cts_val); had_write_register(AUD_HDMI_CTS, (BIT(20) | cts_val)); } /** * snd_intelhad_prog_n - Program HDMI audio N value * * @aud_samp_freq: sampling frequency of audio data * @n_param: N value, depends on aud_samp_freq * @intelhaddata:substream private data * * This function is called in the prepare callback. * It programs based on the audio and display sampling frequency */ static int snd_intelhad_prog_n(u32 aud_samp_freq, u32 *n_param, struct snd_intelhad *intelhaddata) { u32 n_val; int retval = 0; /* Select N according to HDMI 1.3a spec*/ switch (aud_samp_freq) { case AUD_SAMPLE_RATE_32: n_val = 4096; break; case AUD_SAMPLE_RATE_44_1: n_val = 6272; break; case AUD_SAMPLE_RATE_48: n_val = 6144; break; case AUD_SAMPLE_RATE_88_2: n_val = 12544; break; case AUD_SAMPLE_RATE_96: n_val = 12288; break; case AUD_SAMPLE_RATE_176_4: n_val = 25088; break; case HAD_MAX_RATE: n_val = 24576; break; default: retval = -EINVAL; break; } if (retval) return retval; had_write_register(AUD_N_ENABLE, (BIT(20) | n_val)); *n_param = n_val; return retval; } /** * snd_intelhad_open - stream initializations are done here * @substream:substream for which the stream function is called * * This function is called whenever a PCM stream is opened */ static int snd_intelhad_open(struct snd_pcm_substream *substream) { struct snd_intelhad *intelhaddata; struct snd_pcm_runtime *runtime; struct had_stream_pvt *stream; struct had_pvt_data *had_stream; int retval; pr_debug("snd_intelhad_open called\n"); intelhaddata = snd_pcm_substream_chip(substream); had_stream = intelhaddata->private_data; /* * HDMI driver might suspend the device already, * so we return it on */ if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, OSPM_UHB_FORCE_POWER_ON)) { pr_err("HDMI device can't be turned on\n"); return -ENODEV; } if (had_get_hwstate(intelhaddata)) { pr_err("%s: HDMI cable plugged-out\n", __func__); ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND); return -ENODEV; } runtime = substream->runtime; /* Check, if device already in use */ if (runtime->private_data) { pr_err("Device already in use\n"); ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND); return -EBUSY; } ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND); /* set the runtime hw parameter with local snd_pcm_hardware struct */ runtime->hw = snd_intel_hadstream; stream = kzalloc(sizeof(*stream), GFP_KERNEL); if (!stream) { retval = -ENOMEM; goto exit_err; } stream->stream_status = STREAM_INIT; runtime->private_data = stream; retval = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (retval < 0) { kfree(stream); goto exit_err; } /* Make sure, that the period size is always aligned * 64byte boundary */ retval = snd_pcm_hw_constraint_step(substream->runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64); if (retval < 0) { pr_err("%s:step_size=64 failed,err=%d\n", __func__, retval); kfree(stream); goto exit_err; } return retval; exit_err: runtime->private_data = NULL; return retval; } /** * had_period_elapsed - updates the hardware pointer status * @had_substream:substream for which the stream function is called * */ static void had_period_elapsed(void *had_substream) { struct snd_pcm_substream *substream = had_substream; struct had_stream_pvt *stream; if (!substream || !substream->runtime) return; stream = substream->runtime->private_data; if (!stream) return; if (stream->stream_status != STREAM_RUNNING) return; snd_pcm_period_elapsed(substream); return; } /** * snd_intelhad_init_stream - internal function to initialize stream info * @substream:substream for which the stream function is called * */ static int snd_intelhad_init_stream(struct snd_pcm_substream *substream) { struct snd_intelhad *intelhaddata = snd_pcm_substream_chip(substream); pr_debug("setting buffer ptr param\n"); intelhaddata->stream_info.period_elapsed = had_period_elapsed; intelhaddata->stream_info.had_substream = substream; intelhaddata->stream_info.buffer_ptr = 0; intelhaddata->stream_info.buffer_rendered = 0; intelhaddata->stream_info.sfreq = substream->runtime->rate; return 0; } /** * snd_intelhad_close- to free parameteres when stream is stopped * * @substream: substream for which the function is called * * This function is called by ALSA framework when stream is stopped */ static int snd_intelhad_close(struct snd_pcm_substream *substream) { struct snd_intelhad *intelhaddata; struct snd_pcm_runtime *runtime; pr_debug("snd_intelhad_close called\n"); intelhaddata = snd_pcm_substream_chip(substream); runtime = substream->runtime; intelhaddata->stream_info.buffer_rendered = 0; intelhaddata->stream_info.buffer_ptr = 0; intelhaddata->stream_info.str_id = 0; intelhaddata->stream_info.had_substream = NULL; /* Check if following drv_status modification is required - VA */ if (intelhaddata->drv_status != HAD_DRV_DISCONNECTED) intelhaddata->drv_status = HAD_DRV_CONNECTED; kfree(runtime->private_data); runtime->private_data = NULL; return 0; } /** * snd_intelhad_hw_params- to setup the hardware parameters * like allocating the buffers * * @substream: substream for which the function is called * @hw_params: hardware parameters * * This function is called by ALSA framework when hardware params are set */ static int snd_intelhad_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { unsigned long addr; int pages, buf_size, retval; BUG_ON(!hw_params); buf_size = params_buffer_bytes(hw_params); retval = snd_pcm_lib_malloc_pages(substream, buf_size); if (retval < 0) return retval; pr_debug("%s:allocated memory = %d\n", __func__, buf_size); /* mark the pages as uncached region */ addr = (unsigned long) substream->runtime->dma_area; pages = (substream->runtime->dma_bytes + PAGE_SIZE - 1) / PAGE_SIZE; retval = set_memory_uc(addr, pages); if (retval) { pr_err("set_memory_uc failed.Error:%d\n", retval); return retval; } memset(substream->runtime->dma_area, 0, buf_size); return retval; } /** * snd_intelhad_hw_free- to release the resources allocated during * hardware params setup * * @substream: substream for which the function is called * * This function is called by ALSA framework before close callback. * */ static int snd_intelhad_hw_free(struct snd_pcm_substream *substream) { unsigned long addr; u32 pages; pr_debug("snd_intelhad_hw_free called\n"); /* mark back the pages as cached/writeback region before the free */ addr = (unsigned long) substream->runtime->dma_area; pages = (substream->runtime->dma_bytes + PAGE_SIZE - 1) / PAGE_SIZE; set_memory_wb(addr, pages); return snd_pcm_lib_free_pages(substream); }
static int minivosc_hw_free(struct snd_pcm_substream *ss) { dbg("%s", __func__); return snd_pcm_lib_free_pages(ss); }
static int mtk_uldlloopback_pcm_hw_free(struct snd_pcm_substream *substream) { PRINTK_AUDDRV("mtk_uldlloopback_pcm_hw_free \n"); return snd_pcm_lib_free_pages(substream); }
int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr, struct mixart_pipe *pipe, int monitoring) { int err = 0; if(pipe->status == PIPE_UNDEFINED) return 0; if(monitoring) pipe->monitoring = 0; else pipe->references--; if((pipe->references <= 0) && (pipe->monitoring == 0)) { struct mixart_msg request; struct mixart_delete_group_resp delete_resp; /* release the clock */ err = mixart_set_clock( mgr, pipe, 0); if( err < 0 ) { snd_printk(KERN_ERR "mixart_set_clock(0) return error!\n"); } /* stop the pipe */ err = mixart_set_pipe_state(mgr, pipe, 0); if( err < 0 ) { snd_printk(KERN_ERR "error stopping pipe!\n"); } request.message_id = MSG_STREAM_DELETE_GROUP; request.uid = (struct mixart_uid){0,0}; request.data = &pipe->group_uid; /* the streaming group ! */ request.size = sizeof(pipe->group_uid); /* delete the pipe */ err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp); if ((err < 0) || (delete_resp.status != 0)) { snd_printk(KERN_ERR "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n", err, delete_resp.status); } pipe->group_uid = (struct mixart_uid){0,0}; pipe->stream_count = 0; pipe->status = PIPE_UNDEFINED; } return err; } static int mixart_set_stream_state(struct mixart_stream *stream, int start) { struct snd_mixart *chip; struct mixart_stream_state_req stream_state_req; struct mixart_msg request; if(!stream->substream) return -EINVAL; memset(&stream_state_req, 0, sizeof(stream_state_req)); stream_state_req.stream_count = 1; stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid; stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number; if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET; else request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET; request.uid = (struct mixart_uid){0,0}; request.data = &stream_state_req; request.size = sizeof(stream_state_req); stream->abs_period_elapsed = 0; /* reset stream pos */ stream->buf_periods = 0; stream->buf_period_frag = 0; chip = snd_pcm_substream_chip(stream->substream); return snd_mixart_send_msg_nonblock(chip->mgr, &request); } /* * Trigger callback */ static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd) { struct mixart_stream *stream = subs->runtime->private_data; switch (cmd) { case SNDRV_PCM_TRIGGER_START: snd_printdd("SNDRV_PCM_TRIGGER_START\n"); /* START_STREAM */ if( mixart_set_stream_state(stream, 1) ) return -EINVAL; stream->status = MIXART_STREAM_STATUS_RUNNING; break; case SNDRV_PCM_TRIGGER_STOP: /* STOP_STREAM */ if( mixart_set_stream_state(stream, 0) ) return -EINVAL; stream->status = MIXART_STREAM_STATUS_OPEN; snd_printdd("SNDRV_PCM_TRIGGER_STOP\n"); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* TODO */ stream->status = MIXART_STREAM_STATUS_PAUSE; snd_printdd("SNDRV_PCM_PAUSE_PUSH\n"); break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* TODO */ stream->status = MIXART_STREAM_STATUS_RUNNING; snd_printdd("SNDRV_PCM_PAUSE_RELEASE\n"); break; default: return -EINVAL; } return 0; } static int mixart_sync_nonblock_events(struct mixart_mgr *mgr) { unsigned long timeout = jiffies + HZ; while (atomic_read(&mgr->msg_processed) > 0) { if (time_after(jiffies, timeout)) { snd_printk(KERN_ERR "mixart: cannot process nonblock events!\n"); return -EBUSY; } schedule_timeout_uninterruptible(1); } return 0; } /* * prepare callback for all pcms */ static int snd_mixart_prepare(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_stream *stream = subs->runtime->private_data; /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */ snd_printdd("snd_mixart_prepare\n"); mixart_sync_nonblock_events(chip->mgr); /* only the first stream can choose the sample rate */ /* the further opened streams will be limited to its frequency (see open) */ if(chip->mgr->ref_count_rate == 1) chip->mgr->sample_rate = subs->runtime->rate; /* set the clock only once (first stream) on the same pipe */ if(stream->pipe->references == 1) { if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) ) return -EINVAL; } return 0; } static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format) { int err; struct snd_mixart *chip; struct mixart_msg request; struct mixart_stream_param_desc stream_param; struct mixart_return_uid resp; chip = snd_pcm_substream_chip(stream->substream); memset(&stream_param, 0, sizeof(stream_param)); stream_param.coding_type = CT_LINEAR; stream_param.number_of_channel = stream->channels; stream_param.sampling_freq = chip->mgr->sample_rate; if(stream_param.sampling_freq == 0) stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */ switch(format){ case SNDRV_PCM_FORMAT_U8: stream_param.sample_type = ST_INTEGER_8; stream_param.sample_size = 8; break; case SNDRV_PCM_FORMAT_S16_LE: stream_param.sample_type = ST_INTEGER_16LE; stream_param.sample_size = 16; break; case SNDRV_PCM_FORMAT_S16_BE: stream_param.sample_type = ST_INTEGER_16BE; stream_param.sample_size = 16; break; case SNDRV_PCM_FORMAT_S24_3LE: stream_param.sample_type = ST_INTEGER_24LE; stream_param.sample_size = 24; break; case SNDRV_PCM_FORMAT_S24_3BE: stream_param.sample_type = ST_INTEGER_24BE; stream_param.sample_size = 24; break; case SNDRV_PCM_FORMAT_FLOAT_LE: stream_param.sample_type = ST_FLOATING_POINT_32LE; stream_param.sample_size = 32; break; case SNDRV_PCM_FORMAT_FLOAT_BE: stream_param.sample_type = ST_FLOATING_POINT_32BE; stream_param.sample_size = 32; break; default: snd_printk(KERN_ERR "error mixart_set_format() : unknown format\n"); return -EINVAL; } snd_printdd("set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n", stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels); /* TODO: what else to configure ? */ /* stream_param.samples_per_frame = 2; */ /* stream_param.bytes_per_frame = 4; */ /* stream_param.bytes_per_sample = 2; */ stream_param.pipe_count = 1; /* set to 1 */ stream_param.stream_count = 1; /* set to 1 */ stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid; stream_param.stream_desc[0].stream_idx = stream->substream->number; request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM; request.uid = (struct mixart_uid){0,0}; request.data = &stream_param; request.size = sizeof(stream_param); err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp); if((err < 0) || resp.error_code) { snd_printk(KERN_ERR "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n", err, resp.error_code); return -EINVAL; } return 0; } /* * HW_PARAMS callback for all pcms */ static int snd_mixart_hw_params(struct snd_pcm_substream *subs, struct snd_pcm_hw_params *hw) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_mgr *mgr = chip->mgr; struct mixart_stream *stream = subs->runtime->private_data; snd_pcm_format_t format; int err; int channels; /* set up channels */ channels = params_channels(hw); /* set up format for the stream */ format = params_format(hw); mutex_lock(&mgr->setup_mutex); /* update the stream levels */ if( stream->pcm_number <= MIXART_PCM_DIGITAL ) { int is_aes = stream->pcm_number > MIXART_PCM_ANALOG; if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK ) mixart_update_playback_stream_level(chip, is_aes, subs->number); else mixart_update_capture_stream_level( chip, is_aes); } stream->channels = channels; /* set the format to the board */ err = mixart_set_format(stream, format); if(err < 0) { mutex_unlock(&mgr->setup_mutex); return err; } /* allocate buffer */ err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw)); if (err > 0) { struct mixart_bufferinfo *bufferinfo; int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number; if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) { i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */ } bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area; bufferinfo[i].buffer_address = subs->runtime->dma_addr; bufferinfo[i].available_length = subs->runtime->dma_bytes; /* bufferinfo[i].buffer_id is already defined */ snd_printdd("snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n", i, bufferinfo[i].buffer_address, bufferinfo[i].available_length, subs->number); } mutex_unlock(&mgr->setup_mutex); return err; } static int snd_mixart_hw_free(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); snd_pcm_lib_free_pages(subs); mixart_sync_nonblock_events(chip->mgr); return 0; } /* * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max */ static struct snd_pcm_hardware snd_mixart_analog_caps = { .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), .formats = ( SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ), .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, .rate_min = 8000, .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = (32*1024), .period_bytes_min = 256, /* 256 frames U8 mono*/ .period_bytes_max = (16*1024), .periods_min = 2, .periods_max = (32*1024/256), }; static struct snd_pcm_hardware snd_mixart_digital_caps = { .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), .formats = ( SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ), .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, .rate_min = 32000, .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = (32*1024), .period_bytes_min = 256, /* 256 frames U8 mono*/ .period_bytes_max = (16*1024), .periods_min = 2, .periods_max = (32*1024/256), }; static int snd_mixart_playback_open(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_mgr *mgr = chip->mgr; struct snd_pcm_runtime *runtime = subs->runtime; struct snd_pcm *pcm = subs->pcm; struct mixart_stream *stream; struct mixart_pipe *pipe; int err = 0; int pcm_number; mutex_lock(&mgr->setup_mutex); if ( pcm == chip->pcm ) { pcm_number = MIXART_PCM_ANALOG; runtime->hw = snd_mixart_analog_caps; } else { snd_BUG_ON(pcm != chip->pcm_dig); pcm_number = MIXART_PCM_DIGITAL; runtime->hw = snd_mixart_digital_caps; } snd_printdd("snd_mixart_playback_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number); /* get stream info */ stream = &(chip->playback_stream[pcm_number][subs->number]); if (stream->status != MIXART_STREAM_STATUS_FREE){ /* streams in use */ snd_printk(KERN_ERR "snd_mixart_playback_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number); err = -EBUSY; goto _exit_open; } /* get pipe pointer (out pipe) */ pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0); if (pipe == NULL) { err = -EINVAL; goto _exit_open; } /* start the pipe if necessary */ err = mixart_set_pipe_state(chip->mgr, pipe, 1); if( err < 0 ) { snd_printk(KERN_ERR "error starting pipe!\n"); snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0); err = -EINVAL; goto _exit_open; } stream->pipe = pipe; stream->pcm_number = pcm_number; stream->status = MIXART_STREAM_STATUS_OPEN; stream->substream = subs; stream->channels = 0; /* not configured yet */ runtime->private_data = stream; snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64); /* if a sample rate is already used, another stream cannot change */ if(mgr->ref_count_rate++) { if(mgr->sample_rate) { runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate; } } _exit_open: mutex_unlock(&mgr->setup_mutex); return err; } static int snd_mixart_capture_open(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_mgr *mgr = chip->mgr; struct snd_pcm_runtime *runtime = subs->runtime; struct snd_pcm *pcm = subs->pcm; struct mixart_stream *stream; struct mixart_pipe *pipe; int err = 0; int pcm_number; mutex_lock(&mgr->setup_mutex); if ( pcm == chip->pcm ) { pcm_number = MIXART_PCM_ANALOG; runtime->hw = snd_mixart_analog_caps; } else { snd_BUG_ON(pcm != chip->pcm_dig); pcm_number = MIXART_PCM_DIGITAL; runtime->hw = snd_mixart_digital_caps; } runtime->hw.channels_min = 2; /* for instance, no mono */ snd_printdd("snd_mixart_capture_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number); /* get stream info */ stream = &(chip->capture_stream[pcm_number]); if (stream->status != MIXART_STREAM_STATUS_FREE){ /* streams in use */ snd_printk(KERN_ERR "snd_mixart_capture_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number); err = -EBUSY; goto _exit_open; } /* get pipe pointer (in pipe) */ pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0); if (pipe == NULL) { err = -EINVAL; goto _exit_open; } /* start the pipe if necessary */ err = mixart_set_pipe_state(chip->mgr, pipe, 1); if( err < 0 ) { snd_printk(KERN_ERR "error starting pipe!\n"); snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0); err = -EINVAL; goto _exit_open; } stream->pipe = pipe; stream->pcm_number = pcm_number; stream->status = MIXART_STREAM_STATUS_OPEN; stream->substream = subs; stream->channels = 0; /* not configured yet */ runtime->private_data = stream; snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64); /* if a sample rate is already used, another stream cannot change */ if(mgr->ref_count_rate++) { if(mgr->sample_rate) { runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate; } } _exit_open: mutex_unlock(&mgr->setup_mutex); return err; } static int snd_mixart_close(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_mgr *mgr = chip->mgr; struct mixart_stream *stream = subs->runtime->private_data; mutex_lock(&mgr->setup_mutex); snd_printdd("snd_mixart_close C%d/P%d/Sub%d\n", chip->chip_idx, stream->pcm_number, subs->number); /* sample rate released */ if(--mgr->ref_count_rate == 0) { mgr->sample_rate = 0; } /* delete pipe */ if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) { snd_printk(KERN_ERR "error snd_mixart_kill_ref_pipe C%dP%d\n", chip->chip_idx, stream->pcm_number); } stream->pipe = NULL; stream->status = MIXART_STREAM_STATUS_FREE; stream->substream = NULL; mutex_unlock(&mgr->setup_mutex); return 0; } static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs) { struct snd_pcm_runtime *runtime = subs->runtime; struct mixart_stream *stream = runtime->private_data; return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag); } static struct snd_pcm_ops snd_mixart_playback_ops = { .open = snd_mixart_playback_open, .close = snd_mixart_close, .ioctl = snd_pcm_lib_ioctl, .prepare = snd_mixart_prepare, .hw_params = snd_mixart_hw_params, .hw_free = snd_mixart_hw_free, .trigger = snd_mixart_trigger, .pointer = snd_mixart_stream_pointer, }; static struct snd_pcm_ops snd_mixart_capture_ops = { .open = snd_mixart_capture_open, .close = snd_mixart_close, .ioctl = snd_pcm_lib_ioctl, .prepare = snd_mixart_prepare, .hw_params = snd_mixart_hw_params, .hw_free = snd_mixart_hw_free, .trigger = snd_mixart_trigger, .pointer = snd_mixart_stream_pointer, }; static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm) { #if 0 struct snd_pcm_substream *subs; int stream; for (stream = 0; stream < 2; stream++) { int idx = 0; for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++) /* set up the unique device id with the chip index */ subs->dma_device.id = subs->pcm->device << 16 | subs->stream << 8 | (subs->number + 1) | (chip->chip_idx + 1) << 24; } #endif snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024); } /* */ static int snd_mixart_pcm_analog(struct snd_mixart *chip) { int err; struct snd_pcm *pcm; char name[32]; sprintf(name, "miXart analog %d", chip->chip_idx); if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG, MIXART_PLAYBACK_STREAMS, MIXART_CAPTURE_STREAMS, &pcm)) < 0) { snd_printk(KERN_ERR "cannot create the analog pcm %d\n", chip->chip_idx); return err; } pcm->private_data = chip; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops); pcm->info_flags = 0; strcpy(pcm->name, name); preallocate_buffers(chip, pcm); chip->pcm = pcm; return 0; } /* */ static int snd_mixart_pcm_digital(struct snd_mixart *chip) { int err; struct snd_pcm *pcm; char name[32]; sprintf(name, "miXart AES/EBU %d", chip->chip_idx); if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL, MIXART_PLAYBACK_STREAMS, MIXART_CAPTURE_STREAMS, &pcm)) < 0) { snd_printk(KERN_ERR "cannot create the digital pcm %d\n", chip->chip_idx); return err; } pcm->private_data = chip; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops); pcm->info_flags = 0; strcpy(pcm->name, name); preallocate_buffers(chip, pcm); chip->pcm_dig = pcm; return 0; } static int snd_mixart_chip_free(struct snd_mixart *chip) { kfree(chip); return 0; } static int snd_mixart_chip_dev_free(struct snd_device *device) { struct snd_mixart *chip = device->device_data; return snd_mixart_chip_free(chip); } /* */ static int __devinit snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx) { int err; struct snd_mixart *chip; static struct snd_device_ops ops = { .dev_free = snd_mixart_chip_dev_free, }; chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (! chip) { snd_printk(KERN_ERR "cannot allocate chip\n"); return -ENOMEM; } chip->card = card; chip->chip_idx = idx; chip->mgr = mgr; if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { snd_mixart_chip_free(chip); return err; } mgr->chip[idx] = chip; snd_card_set_dev(card, &mgr->pci->dev); return 0; }
/* hw_free callback */ static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream) { int result; result = snd_pcm_lib_free_pages(substream); return result; }
static int sst_media_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { return snd_pcm_lib_free_pages(substream); }
/* * release buffers */ static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs) { snd_pcm_lib_free_pages(subs); return 0; }
static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream) { int ret; ret = snd_pcm_lib_free_pages(substream); return ret; };
static int dummy_pcm_hw_free(struct snd_pcm_substream *substream) { if (fake_buffer) return 0; return snd_pcm_lib_free_pages(substream); }
static int snd_card_dummy_hw_free(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); }
static int snd_aicapcm_pcm_hw_free(struct snd_pcm_substream *substream) { /* Free the DMA buffer */ return snd_pcm_lib_free_pages(substream); }
static int snd_em8300_pcm_hw_free(struct snd_pcm_substream *substream) { // printk("em8300-%d: snd_em8300_pcm_hw_free called.\n", em->instance); return snd_pcm_lib_free_pages(substream); }
static int davinci_pcm_hw_free(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); }
/* hw_free callback */ static int snd_p16v_pcm_hw_free_playback(snd_pcm_substream_t *substream) { int result; result = snd_pcm_lib_free_pages(substream); return result; }
static int mtk_voice_bt_hw_free(struct snd_pcm_substream *substream) { PRINTK_AUDDRV("mtk_voice_bt_hw_free\n"); return snd_pcm_lib_free_pages(substream); }
static int hi3630_srcup_normal_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct hi3630_srcup_runtime_data *prtd = substream->runtime->private_data; struct hi3630_srcup_data *pdata = prtd->pdata; unsigned long bytes = params_buffer_bytes(params); unsigned int params_value = 0; unsigned int channels = 0; unsigned int format = 0; int ret = 0; if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { ret = snd_pcm_lib_malloc_pages(substream, bytes); if (0 > ret) { loge("snd_pcm_lib_malloc_pages ret is %d", ret); return ret; } /* CHECK SUPPORT CHANNELS : mono or stereo */ params_value = params_channels(params); if (2 == params_value || 1 == params_value) { channels = params_value; } else { loge("DAC not support %d channels\n", params_value); ret = -EINVAL; goto err_out; } params_value = params_format(params); /* check formats */ switch (params_value) { case SNDRV_PCM_FORMAT_S16_BE : format |= SRCUP_BIG_DIAN_BIT; /* fallthrough */ case SNDRV_PCM_FORMAT_S16_LE : if (2 == channels) format |= STEREO_16BIT; else format |= MONO_16BIT; break; default : loge("format err : %d, not support\n", params_value); ret = -EINVAL; goto err_out; } format |= SRCUP_CH0_HLC; mutex_lock(&prtd->mutex); prtd->period_size = params_period_bytes(params); mutex_unlock(&prtd->mutex); /*output format 24bit, single req mode*/ hi3630_srcup_reg_write(pdata, HI3630_SRCUP_SINGLE_REQ_MODE_REG, SRCUP_OUT_FORMT_24BIT | SRCUP_STEREO_DATA | SRCUP_SINGLE_REQ_MODE); /*channel ctrl*/ hi3630_srcup_reg_write(pdata, HI3630_SRCUP_CH0_CTRL_REG, format); err_out: if (0 > ret) { loge("hw params error, ret : %d\n", ret); snd_pcm_lib_free_pages(substream); } } return ret; }
static int mtk_pcm_mrgrx_hw_free(struct snd_pcm_substream *substream) { printk("mtk_pcm_mrgrx_hw_free \n"); return snd_pcm_lib_free_pages(substream); }
static int hi3630_pcm_hdmi_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct hi3630_hdmi_runtime_data *prtd = substream->runtime->private_data; struct hi3630_hdmi_data *pdata = prtd->pdata; unsigned long bytes = params_buffer_bytes(params); unsigned int params_value = 0; unsigned int channels = 0; unsigned int infreq_index = 0; unsigned int outfreq_index = 0; unsigned int width = 0; unsigned int format = 0; int txValue = 0; int ret = 0; if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { ret = snd_pcm_lib_malloc_pages(substream, bytes); if (0 > ret) { loge("snd_pcm_lib_malloc_pages ret is %d", ret); return ret; } /* CHECK SUPPORT CHANNELS : mono or stereo */ params_value = params_channels(params); if (2 == params_value || 1 == params_value) { channels = params_value; } else { loge("DAC not support %d channels\n", params_value); ret = -EINVAL; goto err_out; } params_value = params_rate(params); logd("set rate = %d \n", params_value); for (infreq_index = 0; infreq_index < ARRAY_SIZE(freq); infreq_index++) { if(params_value == freq[infreq_index]) break; } if ( ARRAY_SIZE(freq) <= infreq_index) { loge("set rate = %d error\n", params_value); return -EINVAL; } hi3630_get_afrequency(infreq_index, &outfreq_index, channels); params_value = params_format(params); /* check formats */ switch (params_value) { case SNDRV_PCM_FORMAT_S16_BE : format = HDMI_BIG_DIAN_BIT; /* fallthrough */ case SNDRV_PCM_FORMAT_S16_LE : if (2 == channels) width = STEREO_16BIT; break; default : loge("format err : %d, not support\n", params_value); ret = -EINVAL; goto err_out; } mutex_lock(&prtd->mutex); prtd->period_size = params_period_bytes(params); mutex_unlock(&prtd->mutex); txValue = hi3630_hdmi_reg_read(pdata, HI3630_ASP_TX3); txValue |= (width << 3) | (1 << 6) | ((channels-1) << 7) |format; hi3630_hdmi_reg_write(pdata, HI3630_ASP_TX3, txValue); logi("hdmi params.freq:%d, channel:%d\n", freq[outfreq_index], channels); k3_hdmi_audio_set_param(freq[outfreq_index], HDMI_SAMPLE_16BITS, true, 0, 1, channels); err_out: if (0 > ret) { loge("hw params error, ret : %d\n", ret); snd_pcm_lib_free_pages(substream); } } return ret; }