// SPDX-License-Identifier: GPL-2.0-or-later /* -*- linux-c -*- * * * ALSA driver for the digigram lx6464es interface * * Copyright (c) 2008, 2009 Tim Blechmann */ #include #include #include #include #include #include #include #include #include "lx6464es.h" MODULE_AUTHOR("Tim Blechmann"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("digigram lx6464es"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for Digigram LX6464ES interface."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for Digigram LX6464ES interface."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable/disable specific Digigram LX6464ES soundcards."); static const char card_name[] = "LX6464ES"; #define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056 static const struct pci_device_id snd_lx6464es_ids[] = { { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, PCI_VENDOR_ID_DIGIGRAM, PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM), }, /* LX6464ES */ { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, PCI_VENDOR_ID_DIGIGRAM, PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM), }, /* LX6464ES-CAE */ { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, PCI_VENDOR_ID_DIGIGRAM, PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_SERIAL_SUBSYSTEM), }, /* LX6464ESe */ { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, PCI_VENDOR_ID_DIGIGRAM, PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_CAE_SERIAL_SUBSYSTEM), }, /* LX6464ESe-CAE */ { 0, }, }; MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids); /* PGO pour USERo dans le registre pci_0x06/loc_0xEC */ #define CHIPSC_RESET_XILINX (1L<<16) /* alsa callbacks */ static const struct snd_pcm_hardware lx_caps = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START), .formats = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE), .rates = (SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_192000), .rate_min = 8000, .rate_max = 192000, .channels_min = 2, .channels_max = 64, .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER, .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2), .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER), .periods_min = 2, .periods_max = MAX_STREAM_BUFFER, }; static int lx_set_granularity(struct lx6464es *chip, u32 gran); static int lx_hardware_open(struct lx6464es *chip, struct snd_pcm_substream *substream) { int err = 0; struct snd_pcm_runtime *runtime = substream->runtime; int channels = runtime->channels; int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); snd_pcm_uframes_t period_size = runtime->period_size; dev_dbg(chip->card->dev, "allocating pipe for %d channels\n", channels); err = lx_pipe_allocate(chip, 0, is_capture, channels); if (err < 0) { dev_err(chip->card->dev, LXP "allocating pipe failed\n"); return err; } err = lx_set_granularity(chip, period_size); if (err < 0) { dev_err(chip->card->dev, "setting granularity to %ld failed\n", period_size); return err; } return 0; } static int lx_hardware_start(struct lx6464es *chip, struct snd_pcm_substream *substream) { int err = 0; struct snd_pcm_runtime *runtime = substream->runtime; int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); dev_dbg(chip->card->dev, "setting stream format\n"); err = lx_stream_set_format(chip, runtime, 0, is_capture); if (err < 0) { dev_err(chip->card->dev, "setting stream format failed\n"); return err; } dev_dbg(chip->card->dev, "starting pipe\n"); err = lx_pipe_start(chip, 0, is_capture); if (err < 0) { dev_err(chip->card->dev, "starting pipe failed\n"); return err; } dev_dbg(chip->card->dev, "waiting for pipe to start\n"); err = lx_pipe_wait_for_start(chip, 0, is_capture); if (err < 0) { dev_err(chip->card->dev, "waiting for pipe failed\n"); return err; } return err; } static int lx_hardware_stop(struct lx6464es *chip, struct snd_pcm_substream *substream) { int err = 0; int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); dev_dbg(chip->card->dev, "pausing pipe\n"); err = lx_pipe_pause(chip, 0, is_capture); if (err < 0) { dev_err(chip->card->dev, "pausing pipe failed\n"); return err; } dev_dbg(chip->card->dev, "waiting for pipe to become idle\n"); err = lx_pipe_wait_for_idle(chip, 0, is_capture); if (err < 0) { dev_err(chip->card->dev, "waiting for pipe failed\n"); return err; } dev_dbg(chip->card->dev, "stopping pipe\n"); err = lx_pipe_stop(chip, 0, is_capture); if (err < 0) { dev_err(chip->card->dev, "stopping pipe failed\n"); return err; } return err; } static int lx_hardware_close(struct lx6464es *chip, struct snd_pcm_substream *substream) { int err = 0; int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); dev_dbg(chip->card->dev, "releasing pipe\n"); err = lx_pipe_release(chip, 0, is_capture); if (err < 0) { dev_err(chip->card->dev, "releasing pipe failed\n"); return err; } return err; } static int lx_pcm_open(struct snd_pcm_substream *substream) { struct lx6464es *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; int err = 0; int board_rate; dev_dbg(chip->card->dev, "->lx_pcm_open\n"); guard(mutex)(&chip->setup_mutex); /* copy the struct snd_pcm_hardware struct */ runtime->hw = lx_caps; #if 0 /* buffer-size should better be multiple of period-size */ err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (err < 0) { dev_warn(chip->card->dev, "could not constrain periods\n"); return err; } #endif /* the clock rate cannot be changed */ board_rate = chip->board_sample_rate; err = snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_RATE, board_rate); if (err < 0) { dev_warn(chip->card->dev, "could not constrain periods\n"); return err; } /* constrain period size */ err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, MICROBLAZE_IBL_MIN, MICROBLAZE_IBL_MAX); if (err < 0) { dev_warn(chip->card->dev, "could not constrain period size\n"); return err; } snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); snd_pcm_set_sync(substream); err = 0; runtime->private_data = chip; dev_dbg(chip->card->dev, "<-lx_pcm_open, %d\n", err); return err; } static int lx_pcm_close(struct snd_pcm_substream *substream) { dev_dbg(substream->pcm->card->dev, "->lx_pcm_close\n"); return 0; } static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream *substream) { struct lx6464es *chip = snd_pcm_substream_chip(substream); snd_pcm_uframes_t pos; int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); struct lx_stream *lx_stream = is_capture ? &chip->capture_stream : &chip->playback_stream; dev_dbg(chip->card->dev, "->lx_pcm_stream_pointer\n"); guard(mutex)(&chip->lock); pos = lx_stream->frame_pos * substream->runtime->period_size; dev_dbg(chip->card->dev, "stream_pointer at %ld\n", pos); return pos; } static int lx_pcm_prepare(struct snd_pcm_substream *substream) { struct lx6464es *chip = snd_pcm_substream_chip(substream); int err = 0; const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); dev_dbg(chip->card->dev, "->lx_pcm_prepare\n"); guard(mutex)(&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); return err; } err = lx_hardware_close(chip, substream); if (err < 0) { dev_err(chip->card->dev, "failed to close hardware. " "Error code %d\n", err); return err; } } dev_dbg(chip->card->dev, "opening hardware\n"); err = lx_hardware_open(chip, substream); if (err < 0) { dev_err(chip->card->dev, "failed to open hardware. " "Error code %d\n", err); return err; } err = lx_hardware_start(chip, substream); if (err < 0) { dev_err(chip->card->dev, "failed to start hardware. " "Error code %d\n", err); return err; } chip->hardware_running[is_capture] = 1; if (chip->board_sample_rate != substream->runtime->rate) { if (!err) chip->board_sample_rate = substream->runtime->rate; } return err; } static int lx_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params, int is_capture) { struct lx6464es *chip = snd_pcm_substream_chip(substream); dev_dbg(chip->card->dev, "->lx_pcm_hw_params\n"); guard(mutex)(&chip->setup_mutex); if (is_capture) chip->capture_stream.stream = substream; else chip->playback_stream.stream = substream; return 0; } static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { return lx_pcm_hw_params(substream, hw_params, 0); } static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { return lx_pcm_hw_params(substream, hw_params, 1); } 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"); guard(mutex)(&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); return err; } err = lx_hardware_close(chip, substream); if (err < 0) { dev_err(chip->card->dev, "failed to close hardware. " "Error code %d\n", err); return err; } chip->hardware_running[is_capture] = 0; } if (is_capture) chip->capture_stream.stream = NULL; else chip->playback_stream.stream = NULL; return 0; } static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream) { struct snd_pcm_substream *substream = lx_stream->stream; const unsigned int is_capture = lx_stream->is_capture; int err; const u32 channels = substream->runtime->channels; const u32 bytes_per_frame = channels * 3; const u32 period_size = substream->runtime->period_size; const u32 periods = substream->runtime->periods; const u32 period_bytes = period_size * bytes_per_frame; dma_addr_t buf = substream->dma_buffer.addr; int i; u32 needed, freed; u32 size_array[5]; for (i = 0; i != periods; ++i) { u32 buffer_index = 0; err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array); dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", needed, freed); err = lx_buffer_give(chip, 0, is_capture, period_bytes, lower_32_bits(buf), upper_32_bits(buf), &buffer_index); dev_dbg(chip->card->dev, "starting: buffer index %x on 0x%lx (%d bytes)\n", buffer_index, (unsigned long)buf, period_bytes); buf += period_bytes; } err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array); dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", needed, freed); dev_dbg(chip->card->dev, "starting: starting stream\n"); err = lx_stream_start(chip, 0, is_capture); if (err < 0) dev_err(chip->card->dev, "couldn't start stream\n"); else lx_stream->status = LX_STREAM_STATUS_RUNNING; lx_stream->frame_pos = 0; } static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream) { const unsigned int is_capture = lx_stream->is_capture; int err; dev_dbg(chip->card->dev, "stopping: stopping stream\n"); err = lx_stream_stop(chip, 0, is_capture); if (err < 0) dev_err(chip->card->dev, "couldn't stop stream\n"); else lx_stream->status = LX_STREAM_STATUS_FREE; } static void lx_trigger_dispatch_stream(struct lx6464es *chip, struct lx_stream *lx_stream) { switch (lx_stream->status) { case LX_STREAM_STATUS_SCHEDULE_RUN: lx_trigger_start(chip, lx_stream); break; case LX_STREAM_STATUS_SCHEDULE_STOP: lx_trigger_stop(chip, lx_stream); break; default: break; } } static int lx_pcm_trigger_dispatch(struct lx6464es *chip, struct lx_stream *lx_stream, int cmd) { guard(mutex)(&chip->lock); switch (cmd) { case SNDRV_PCM_TRIGGER_START: lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN; break; case SNDRV_PCM_TRIGGER_STOP: lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP; break; default: return -EINVAL; } lx_trigger_dispatch_stream(chip, &chip->capture_stream); lx_trigger_dispatch_stream(chip, &chip->playback_stream); return 0; } static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { struct lx6464es *chip = snd_pcm_substream_chip(substream); const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); struct lx_stream *stream = is_capture ? &chip->capture_stream : &chip->playback_stream; dev_dbg(chip->card->dev, "->lx_pcm_trigger\n"); return lx_pcm_trigger_dispatch(chip, stream, cmd); } static void snd_lx6464es_free(struct snd_card *card) { struct lx6464es *chip = card->private_data; lx_irq_disable(chip); } /* reset the dsp during initialization */ static int lx_init_xilinx_reset(struct lx6464es *chip) { int i; u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC); dev_dbg(chip->card->dev, "->lx_init_xilinx_reset\n"); /* activate reset of xilinx */ plx_reg &= ~CHIPSC_RESET_XILINX; lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); msleep(1); lx_plx_reg_write(chip, ePLX_MBOX3, 0); msleep(1); plx_reg |= CHIPSC_RESET_XILINX; lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); /* deactivate reset of xilinx */ for (i = 0; i != 100; ++i) { u32 reg_mbox3; msleep(10); reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3); if (reg_mbox3) { dev_dbg(chip->card->dev, "xilinx reset done\n"); dev_dbg(chip->card->dev, "xilinx took %d loops\n", i); break; } } /* todo: add some error handling? */ /* clear mr */ lx_dsp_reg_write(chip, eReg_CSM, 0); /* le xilinx ES peut ne pas etre encore pret, on attend. */ msleep(600); return 0; } static int lx_init_xilinx_test(struct lx6464es *chip) { u32 reg; dev_dbg(chip->card->dev, "->lx_init_xilinx_test\n"); /* TEST if we have access to Xilinx/MicroBlaze */ lx_dsp_reg_write(chip, eReg_CSM, 0); reg = lx_dsp_reg_read(chip, eReg_CSM); if (reg) { dev_err(chip->card->dev, "Problem: Reg_CSM %x.\n", reg); /* PCI9056_SPACE0_REMAP */ lx_plx_reg_write(chip, ePLX_PCICR, 1); reg = lx_dsp_reg_read(chip, eReg_CSM); if (reg) { dev_err(chip->card->dev, "Error: Reg_CSM %x.\n", reg); return -EAGAIN; /* seems to be appropriate */ } } dev_dbg(chip->card->dev, "Xilinx/MicroBlaze access test successful\n"); return 0; } /* initialize ethersound */ static int lx_init_ethersound_config(struct lx6464es *chip) { int i; u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES); /* configure 64 io channels */ u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) | (64 << IOCR_INPUTS_OFFSET) | (64 << IOCR_OUTPUTS_OFFSET) | (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET); dev_dbg(chip->card->dev, "->lx_init_ethersound\n"); chip->freq_ratio = FREQ_RATIO_SINGLE_MODE; /* * write it to the card ! * this actually kicks the ES xilinx, the first time since poweron. * the MAC address in the Reg_ADMACESMSB Reg_ADMACESLSB registers * is not ready before this is done, and the bit 2 in Reg_CSES is set. * */ lx_dsp_reg_write(chip, eReg_CONFES, conf_es); for (i = 0; i != 1000; ++i) { if (lx_dsp_reg_read(chip, eReg_CSES) & 4) { dev_dbg(chip->card->dev, "ethersound initialized after %dms\n", i); goto ethersound_initialized; } msleep(1); } dev_warn(chip->card->dev, "ethersound could not be initialized after %dms\n", i); return -ETIMEDOUT; ethersound_initialized: dev_dbg(chip->card->dev, "ethersound initialized\n"); return 0; } static int lx_init_get_version_features(struct lx6464es *chip) { u32 dsp_version; int err; dev_dbg(chip->card->dev, "->lx_init_get_version_features\n"); err = lx_dsp_get_version(chip, &dsp_version); if (err == 0) { u32 freq; dev_info(chip->card->dev, "DSP version: V%02d.%02d #%d\n", (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff, dsp_version & 0xff); /* later: what firmware version do we expect? */ /* retrieve Play/Rec features */ /* done here because we may have to handle alternate * DSP files. */ /* later */ /* init the EtherSound sample rate */ err = lx_dsp_get_clock_frequency(chip, &freq); if (err == 0) chip->board_sample_rate = freq; dev_dbg(chip->card->dev, "actual clock frequency %d\n", freq); } else { dev_err(chip->card->dev, "DSP corrupted \n"); err = -EAGAIN; } return err; } static int lx_set_granularity(struct lx6464es *chip, u32 gran) { int err = 0; u32 snapped_gran = MICROBLAZE_IBL_MIN; dev_dbg(chip->card->dev, "->lx_set_granularity\n"); /* blocksize is a power of 2 */ while ((snapped_gran < gran) && (snapped_gran < MICROBLAZE_IBL_MAX)) { snapped_gran *= 2; } if (snapped_gran == chip->pcm_granularity) return 0; err = lx_dsp_set_granularity(chip, snapped_gran); if (err < 0) { dev_warn(chip->card->dev, "could not set granularity\n"); err = -EAGAIN; } if (snapped_gran != gran) dev_err(chip->card->dev, "snapped blocksize to %d\n", snapped_gran); dev_dbg(chip->card->dev, "set blocksize on board %d\n", snapped_gran); chip->pcm_granularity = snapped_gran; return err; } /* initialize and test the xilinx dsp chip */ static int lx_init_dsp(struct lx6464es *chip) { int err; int i; dev_dbg(chip->card->dev, "->lx_init_dsp\n"); dev_dbg(chip->card->dev, "initialize board\n"); err = lx_init_xilinx_reset(chip); if (err) return err; dev_dbg(chip->card->dev, "testing board\n"); err = lx_init_xilinx_test(chip); if (err) return err; dev_dbg(chip->card->dev, "initialize ethersound configuration\n"); err = lx_init_ethersound_config(chip); if (err) return err; lx_irq_enable(chip); /** \todo the mac address should be ready by not, but it isn't, * so we wait for it */ for (i = 0; i != 1000; ++i) { err = lx_dsp_get_mac(chip); if (err) return err; if (chip->mac_address[0] || chip->mac_address[1] || chip->mac_address[2] || chip->mac_address[3] || chip->mac_address[4] || chip->mac_address[5]) goto mac_ready; msleep(1); } return -ETIMEDOUT; mac_ready: dev_dbg(chip->card->dev, "mac address ready read after: %dms\n", i); dev_info(chip->card->dev, "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n", chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); err = lx_init_get_version_features(chip); if (err) return err; lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT); chip->playback_mute = 0; return err; } static const struct snd_pcm_ops lx_ops_playback = { .open = lx_pcm_open, .close = lx_pcm_close, .prepare = lx_pcm_prepare, .hw_params = lx_pcm_hw_params_playback, .hw_free = lx_pcm_hw_free, .trigger = lx_pcm_trigger, .pointer = lx_pcm_stream_pointer, }; static const struct snd_pcm_ops lx_ops_capture = { .open = lx_pcm_open, .close = lx_pcm_close, .prepare = lx_pcm_prepare, .hw_params = lx_pcm_hw_params_capture, .hw_free = lx_pcm_hw_free, .trigger = lx_pcm_trigger, .pointer = lx_pcm_stream_pointer, }; static int lx_pcm_create(struct lx6464es *chip) { int err; struct snd_pcm *pcm; u32 size = 64 * /* channels */ 3 * /* 24 bit samples */ MAX_STREAM_BUFFER * /* periods */ MICROBLAZE_IBL_MAX * /* frames per period */ 2; /* duplex */ size = PAGE_ALIGN(size); /* hardcoded device name & channel count */ err = snd_pcm_new(chip->card, (char *)card_name, 0, 1, 1, &pcm); if (err < 0) return err; pcm->private_data = chip; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture); pcm->info_flags = 0; pcm->nonatomic = true; strscpy(pcm->name, card_name); snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, size, size); chip->pcm = pcm; chip->capture_stream.is_capture = 1; return 0; } static int lx_control_playback_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = 1; return 0; } static int lx_control_playback_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct lx6464es *chip = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = chip->playback_mute; return 0; } static int lx_control_playback_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct lx6464es *chip = snd_kcontrol_chip(kcontrol); int changed = 0; int current_value = chip->playback_mute; if (current_value != ucontrol->value.integer.value[0]) { lx_level_unmute(chip, 0, !current_value); chip->playback_mute = !current_value; changed = 1; } return changed; } static const struct snd_kcontrol_new lx_control_playback_switch = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "PCM Playback Switch", .index = 0, .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, .private_value = 0, .info = lx_control_playback_info, .get = lx_control_playback_get, .put = lx_control_playback_put }; static void lx_proc_levels_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { u32 levels[64]; int err; int i, j; struct lx6464es *chip = entry->private_data; snd_iprintf(buffer, "capture levels:\n"); err = lx_level_peaks(chip, 1, 64, levels); if (err < 0) return; for (i = 0; i != 8; ++i) { for (j = 0; j != 8; ++j) snd_iprintf(buffer, "%08x ", levels[i*8+j]); snd_iprintf(buffer, "\n"); } snd_iprintf(buffer, "\nplayback levels:\n"); err = lx_level_peaks(chip, 0, 64, levels); if (err < 0) return; for (i = 0; i != 8; ++i) { for (j = 0; j != 8; ++j) snd_iprintf(buffer, "%08x ", levels[i*8+j]); snd_iprintf(buffer, "\n"); } snd_iprintf(buffer, "\n"); } static int lx_proc_create(struct snd_card *card, struct lx6464es *chip) { return snd_card_ro_proc_new(card, "levels", chip, lx_proc_levels_read); } static int snd_lx6464es_create(struct snd_card *card, struct pci_dev *pci) { struct lx6464es *chip = card->private_data; int err; dev_dbg(card->dev, "->snd_lx6464es_create\n"); /* enable PCI device */ err = pcim_enable_device(pci); if (err < 0) return err; pci_set_master(pci); /* check if we can restrict PCI DMA transfers to 32 bits */ err = dma_set_mask(&pci->dev, DMA_BIT_MASK(32)); if (err < 0) { dev_err(card->dev, "architecture does not support 32bit PCI busmaster DMA\n"); return -ENXIO; } chip->card = card; chip->pci = pci; chip->irq = -1; /* initialize synchronization structs */ mutex_init(&chip->lock); mutex_init(&chip->msg_lock); mutex_init(&chip->setup_mutex); /* request resources */ err = pcim_request_all_regions(pci, card_name); if (err < 0) return err; /* plx port */ chip->port_plx = pci_resource_start(pci, 1); chip->port_plx_remapped = devm_ioport_map(&pci->dev, chip->port_plx, pci_resource_len(pci, 1)); if (!chip->port_plx_remapped) return -ENOMEM; /* dsp port */ chip->port_dsp_bar = pcim_iomap(pci, 2, 0); if (!chip->port_dsp_bar) return -ENOMEM; err = devm_request_threaded_irq(&pci->dev, pci->irq, lx_interrupt, lx_threaded_irq, IRQF_SHARED, KBUILD_MODNAME, chip); if (err) { dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); return err; } chip->irq = pci->irq; card->sync_irq = chip->irq; card->private_free = snd_lx6464es_free; err = lx_init_dsp(chip); if (err < 0) { dev_err(card->dev, "error during DSP initialization\n"); return err; } err = lx_pcm_create(chip); if (err < 0) return err; err = lx_proc_create(card, chip); if (err < 0) return err; err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch, chip)); if (err < 0) return err; return 0; } static int snd_lx6464es_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; struct snd_card *card; struct lx6464es *chip; int err; dev_dbg(&pci->dev, "->snd_lx6464es_probe\n"); if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { dev++; return -ENOENT; } err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, sizeof(*chip), &card); if (err < 0) return err; chip = card->private_data; err = snd_lx6464es_create(card, pci); if (err < 0) { dev_err(card->dev, "error during snd_lx6464es_create\n"); goto error; } strscpy(card->driver, "LX6464ES"); sprintf(card->id, "LX6464ES_%02X%02X%02X", chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); sprintf(card->shortname, "LX6464ES %02X.%02X.%02X.%02X.%02X.%02X", chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i", card->shortname, chip->port_plx, chip->port_dsp_bar, chip->irq); err = snd_card_register(card); if (err < 0) goto error; dev_dbg(chip->card->dev, "initialization successful\n"); pci_set_drvdata(pci, card); dev++; return 0; error: snd_card_free(card); return err; } static struct pci_driver lx6464es_driver = { .name = KBUILD_MODNAME, .id_table = snd_lx6464es_ids, .probe = snd_lx6464es_probe, }; module_pci_driver(lx6464es_driver);