| /* -*- linux-c -*- * |
| * |
| * ALSA driver for the digigram lx6464es interface |
| * |
| * Copyright (c) 2008, 2009 Tim Blechmann <tim@klingt.org> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; see the file COPYING. If not, write to |
| * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/pci.h> |
| #include <linux/delay.h> |
| #include <linux/slab.h> |
| |
| #include <sound/initval.h> |
| #include <sound/control.h> |
| #include <sound/info.h> |
| |
| #include "lx6464es.h" |
| |
| MODULE_AUTHOR("Tim Blechmann"); |
| MODULE_LICENSE("GPL"); |
| MODULE_DESCRIPTION("digigram lx6464es"); |
| MODULE_SUPPORTED_DEVICE("{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(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES), |
| .subvendor = PCI_VENDOR_ID_DIGIGRAM, |
| .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM |
| }, /* LX6464ES */ |
| { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES), |
| .subvendor = PCI_VENDOR_ID_DIGIGRAM, |
| .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM |
| }, /* LX6464ES-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 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"); |
| mutex_lock(&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"); |
| goto exit; |
| } |
| #endif |
| |
| /* the clock rate cannot be changed */ |
| board_rate = chip->board_sample_rate; |
| err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, |
| board_rate, board_rate); |
| |
| if (err < 0) { |
| dev_warn(chip->card->dev, "could not constrain periods\n"); |
| goto exit; |
| } |
| |
| /* 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"); |
| goto exit; |
| } |
| |
| snd_pcm_hw_constraint_step(runtime, 0, |
| SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); |
| |
| snd_pcm_set_sync(substream); |
| err = 0; |
| |
| exit: |
| runtime->private_data = chip; |
| |
| mutex_unlock(&chip->setup_mutex); |
| dev_dbg(chip->card->dev, "<-lx_pcm_open, %d\n", err); |
| return err; |
| } |
| |
| static int lx_pcm_close(struct snd_pcm_substream *substream) |
| { |
| int err = 0; |
| dev_dbg(substream->pcm->card->dev, "->lx_pcm_close\n"); |
| return err; |
| } |
| |
| 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"); |
| |
| mutex_lock(&chip->lock); |
| pos = lx_stream->frame_pos * substream->runtime->period_size; |
| mutex_unlock(&chip->lock); |
| |
| 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"); |
| |
| 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; |
| } |
| } |
| |
| 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); |
| goto exit; |
| } |
| |
| err = lx_hardware_start(chip, substream); |
| if (err < 0) { |
| dev_err(chip->card->dev, "failed to start hardware. " |
| "Error code %d\n", err); |
| goto exit; |
| } |
| |
| chip->hardware_running[is_capture] = 1; |
| |
| if (chip->board_sample_rate != substream->runtime->rate) { |
| if (!err) |
| chip->board_sample_rate = substream->runtime->rate; |
| } |
| |
| exit: |
| mutex_unlock(&chip->setup_mutex); |
| 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); |
| int err = 0; |
| |
| dev_dbg(chip->card->dev, "->lx_pcm_hw_params\n"); |
| |
| mutex_lock(&chip->setup_mutex); |
| |
| /* set dma buffer */ |
| err = snd_pcm_lib_malloc_pages(substream, |
| params_buffer_bytes(hw_params)); |
| |
| if (is_capture) |
| chip->capture_stream.stream = substream; |
| else |
| chip->playback_stream.stream = substream; |
| |
| mutex_unlock(&chip->setup_mutex); |
| return err; |
| } |
| |
| 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"); |
| 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; |
| } |
| |
| 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) |
| { |
| int err = 0; |
| |
| mutex_lock(&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: |
| err = -EINVAL; |
| goto exit; |
| } |
| |
| lx_trigger_dispatch_stream(chip, &chip->capture_stream); |
| lx_trigger_dispatch_stream(chip, &chip->playback_stream); |
| |
| exit: |
| mutex_unlock(&chip->lock); |
| return err; |
| } |
| |
| |
| 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 int snd_lx6464es_free(struct lx6464es *chip) |
| { |
| dev_dbg(chip->card->dev, "->snd_lx6464es_free\n"); |
| |
| lx_irq_disable(chip); |
| |
| if (chip->irq >= 0) |
| free_irq(chip->irq, chip); |
| |
| iounmap(chip->port_dsp_bar); |
| ioport_unmap(chip->port_plx_remapped); |
| |
| pci_release_regions(chip->pci); |
| pci_disable_device(chip->pci); |
| |
| kfree(chip); |
| |
| return 0; |
| } |
| |
| static int snd_lx6464es_dev_free(struct snd_device *device) |
| { |
| return snd_lx6464es_free(device->device_data); |
| } |
| |
| /* 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 struct snd_pcm_ops lx_ops_playback = { |
| .open = lx_pcm_open, |
| .close = lx_pcm_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .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 struct snd_pcm_ops lx_ops_capture = { |
| .open = lx_pcm_open, |
| .close = lx_pcm_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .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; |
| strcpy(pcm->name, card_name); |
| |
| err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
| snd_dma_pci_data(chip->pci), |
| size, size); |
| if (err < 0) |
| return err; |
| |
| 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 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) |
| { |
| struct snd_info_entry *entry; |
| int err = snd_card_proc_new(card, "levels", &entry); |
| if (err < 0) |
| return err; |
| |
| snd_info_set_text_ops(entry, chip, lx_proc_levels_read); |
| return 0; |
| } |
| |
| |
| static int snd_lx6464es_create(struct snd_card *card, |
| struct pci_dev *pci, |
| struct lx6464es **rchip) |
| { |
| struct lx6464es *chip; |
| int err; |
| |
| static struct snd_device_ops ops = { |
| .dev_free = snd_lx6464es_dev_free, |
| }; |
| |
| dev_dbg(card->dev, "->snd_lx6464es_create\n"); |
| |
| *rchip = NULL; |
| |
| /* enable PCI device */ |
| err = pci_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"); |
| pci_disable_device(pci); |
| return -ENXIO; |
| } |
| |
| chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
| if (chip == NULL) { |
| err = -ENOMEM; |
| goto alloc_failed; |
| } |
| |
| 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 = pci_request_regions(pci, card_name); |
| if (err < 0) |
| goto request_regions_failed; |
| |
| /* plx port */ |
| chip->port_plx = pci_resource_start(pci, 1); |
| chip->port_plx_remapped = ioport_map(chip->port_plx, |
| pci_resource_len(pci, 1)); |
| |
| /* dsp port */ |
| chip->port_dsp_bar = pci_ioremap_bar(pci, 2); |
| |
| err = request_threaded_irq(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); |
| goto request_irq_failed; |
| } |
| chip->irq = pci->irq; |
| |
| err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); |
| if (err < 0) |
| goto device_new_failed; |
| |
| 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; |
| |
| *rchip = chip; |
| return 0; |
| |
| device_new_failed: |
| free_irq(pci->irq, chip); |
| |
| request_irq_failed: |
| pci_release_regions(pci); |
| |
| request_regions_failed: |
| kfree(chip); |
| |
| alloc_failed: |
| pci_disable_device(pci); |
| |
| return err; |
| } |
| |
| 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_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, |
| 0, &card); |
| if (err < 0) |
| return err; |
| |
| err = snd_lx6464es_create(card, pci, &chip); |
| if (err < 0) { |
| dev_err(card->dev, "error during snd_lx6464es_create\n"); |
| goto out_free; |
| } |
| |
| strcpy(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 out_free; |
| |
| dev_dbg(chip->card->dev, "initialization successful\n"); |
| pci_set_drvdata(pci, card); |
| dev++; |
| return 0; |
| |
| out_free: |
| snd_card_free(card); |
| return err; |
| |
| } |
| |
| static void snd_lx6464es_remove(struct pci_dev *pci) |
| { |
| snd_card_free(pci_get_drvdata(pci)); |
| } |
| |
| |
| static struct pci_driver lx6464es_driver = { |
| .name = KBUILD_MODNAME, |
| .id_table = snd_lx6464es_ids, |
| .probe = snd_lx6464es_probe, |
| .remove = snd_lx6464es_remove, |
| }; |
| |
| module_pci_driver(lx6464es_driver); |