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- /* -*- 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_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 */
- { 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_single(runtime, SNDRV_PCM_HW_PARAM_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 = NULL;
- else
- chip->playback_stream.stream = NULL;
- 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);
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