--- /dev/null
+/*
+ * ALSA driver for Echoaudio soundcards.
+ * Copyright (C) 2003-2004 Giuliano Pochini <pochini@shiny.it>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+MODULE_AUTHOR("Giuliano Pochini <pochini@shiny.it>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Echoaudio " ECHOCARD_NAME " soundcards driver");
+MODULE_SUPPORTED_DEVICE("{{Echoaudio," ECHOCARD_NAME "}}");
+MODULE_DEVICE_TABLE(pci, snd_echo_ids);
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for " ECHOCARD_NAME " soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for " ECHOCARD_NAME " soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable " ECHOCARD_NAME " soundcard.");
+
+static unsigned int channels_list[10] = {1, 2, 4, 6, 8, 10, 12, 14, 16, 999999};
+
+static int get_firmware(const struct firmware **fw_entry,
+ const struct firmware *frm, struct echoaudio *chip)
+{
+ int err;
+ char name[30];
+ DE_ACT(("firmware requested: %s\n", frm->data));
+ snprintf(name, sizeof(name), "ea/%s", frm->data);
+ if ((err = request_firmware(fw_entry, name, pci_device(chip))) < 0)
+ snd_printk(KERN_ERR "get_firmware(): Firmware not available (%d)\n", err);
+ return err;
+}
+
+static void free_firmware(const struct firmware *fw_entry)
+{
+ release_firmware(fw_entry);
+ DE_ACT(("firmware released\n"));
+}
+
+
+
+/******************************************************************************
+ PCM interface
+******************************************************************************/
+
+static void audiopipe_free(struct snd_pcm_runtime *runtime)
+{
+ struct audiopipe *pipe = runtime->private_data;
+
+ if (pipe->sgpage.area)
+ snd_dma_free_pages(&pipe->sgpage);
+ kfree(pipe);
+}
+
+
+
+static int hw_rule_capture_format_by_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_interval *c = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_mask *f = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+ struct snd_mask fmt;
+
+ snd_mask_any(&fmt);
+
+#ifndef ECHOCARD_HAS_STEREO_BIG_ENDIAN32
+ /* >=2 channels cannot be S32_BE */
+ if (c->min == 2) {
+ fmt.bits[0] &= ~SNDRV_PCM_FMTBIT_S32_BE;
+ return snd_mask_refine(f, &fmt);
+ }
+#endif
+ /* > 2 channels cannot be U8 and S32_BE */
+ if (c->min > 2) {
+ fmt.bits[0] &= ~(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_BE);
+ return snd_mask_refine(f, &fmt);
+ }
+ /* Mono is ok with any format */
+ return 0;
+}
+
+
+
+static int hw_rule_capture_channels_by_format(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_interval *c = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_mask *f = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+ struct snd_interval ch;
+
+ snd_interval_any(&ch);
+
+ /* S32_BE is mono (and stereo) only */
+ if (f->bits[0] == SNDRV_PCM_FMTBIT_S32_BE) {
+ ch.min = 1;
+#ifdef ECHOCARD_HAS_STEREO_BIG_ENDIAN32
+ ch.max = 2;
+#else
+ ch.max = 1;
+#endif
+ ch.integer = 1;
+ return snd_interval_refine(c, &ch);
+ }
+ /* U8 can be only mono or stereo */
+ if (f->bits[0] == SNDRV_PCM_FMTBIT_U8) {
+ ch.min = 1;
+ ch.max = 2;
+ ch.integer = 1;
+ return snd_interval_refine(c, &ch);
+ }
+ /* S16_LE, S24_3LE and S32_LE support any number of channels. */
+ return 0;
+}
+
+
+
+static int hw_rule_playback_format_by_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_interval *c = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_mask *f = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+ struct snd_mask fmt;
+ u64 fmask;
+ snd_mask_any(&fmt);
+
+ fmask = fmt.bits[0] + ((u64)fmt.bits[1] << 32);
+
+ /* >2 channels must be S16_LE, S24_3LE or S32_LE */
+ if (c->min > 2) {
+ fmask &= SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_3LE |
+ SNDRV_PCM_FMTBIT_S32_LE;
+ /* 1 channel must be S32_BE or S32_LE */
+ } else if (c->max == 1)
+ fmask &= SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE;
+#ifndef ECHOCARD_HAS_STEREO_BIG_ENDIAN32
+ /* 2 channels cannot be S32_BE */
+ else if (c->min == 2 && c->max == 2)
+ fmask &= ~SNDRV_PCM_FMTBIT_S32_BE;
+#endif
+ else
+ return 0;
+
+ fmt.bits[0] &= (u32)fmask;
+ fmt.bits[1] &= (u32)(fmask >> 32);
+ return snd_mask_refine(f, &fmt);
+}
+
+
+
+static int hw_rule_playback_channels_by_format(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_interval *c = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_mask *f = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+ struct snd_interval ch;
+ u64 fmask;
+
+ snd_interval_any(&ch);
+ ch.integer = 1;
+ fmask = f->bits[0] + ((u64)f->bits[1] << 32);
+
+ /* S32_BE is mono (and stereo) only */
+ if (fmask == SNDRV_PCM_FMTBIT_S32_BE) {
+ ch.min = 1;
+#ifdef ECHOCARD_HAS_STEREO_BIG_ENDIAN32
+ ch.max = 2;
+#else
+ ch.max = 1;
+#endif
+ /* U8 is stereo only */
+ } else if (fmask == SNDRV_PCM_FMTBIT_U8)
+ ch.min = ch.max = 2;
+ /* S16_LE and S24_3LE must be at least stereo */
+ else if (!(fmask & ~(SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_3LE)))
+ ch.min = 2;
+ else
+ return 0;
+
+ return snd_interval_refine(c, &ch);
+}
+
+
+
+/* Since the sample rate is a global setting, do allow the user to change the
+sample rate only if there is only one pcm device open. */
+static int hw_rule_sample_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_interval *rate = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_RATE);
+ struct echoaudio *chip = rule->private;
+ struct snd_interval fixed;
+
+ if (!chip->can_set_rate) {
+ snd_interval_any(&fixed);
+ fixed.min = fixed.max = chip->sample_rate;
+ return snd_interval_refine(rate, &fixed);
+ }
+ return 0;
+}
+
+
+static int pcm_open(struct snd_pcm_substream *substream,
+ signed char max_channels)
+{
+ struct echoaudio *chip;
+ struct snd_pcm_runtime *runtime;
+ struct audiopipe *pipe;
+ int err, i;
+
+ if (max_channels <= 0)
+ return -EAGAIN;
+
+ chip = snd_pcm_substream_chip(substream);
+ runtime = substream->runtime;
+
+ pipe = kzalloc(sizeof(struct audiopipe), GFP_KERNEL);
+ if (!pipe)
+ return -ENOMEM;
+ pipe->index = -1; /* Not configured yet */
+
+ /* Set up hw capabilities and contraints */
+ memcpy(&pipe->hw, &pcm_hardware_skel, sizeof(struct snd_pcm_hardware));
+ DE_HWP(("max_channels=%d\n", max_channels));
+ pipe->constr.list = channels_list;
+ pipe->constr.mask = 0;
+ for (i = 0; channels_list[i] <= max_channels; i++);
+ pipe->constr.count = i;
+ if (pipe->hw.channels_max > max_channels)
+ pipe->hw.channels_max = max_channels;
+ if (chip->digital_mode == DIGITAL_MODE_ADAT) {
+ pipe->hw.rate_max = 48000;
+ pipe->hw.rates &= SNDRV_PCM_RATE_8000_48000;
+ }
+
+ runtime->hw = pipe->hw;
+ runtime->private_data = pipe;
+ runtime->private_free = audiopipe_free;
+ snd_pcm_set_sync(substream);
+
+ /* Only mono and any even number of channels are allowed */
+ if ((err = snd_pcm_hw_constraint_list(runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ &pipe->constr)) < 0)
+ return err;
+
+ /* All periods should have the same size */
+ if ((err = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
+ return err;
+
+ /* The hw accesses memory in chunks 32 frames long and they should be
+ 32-bytes-aligned. It's not a requirement, but it seems that IRQs are
+ generated with a resolution of 32 frames. Thus we need the following */
+ if ((err = snd_pcm_hw_constraint_step(runtime, 0,
+ SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
+ 32)) < 0)
+ return err;
+ if ((err = snd_pcm_hw_constraint_step(runtime, 0,
+ SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+ 32)) < 0)
+ return err;
+
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ hw_rule_sample_rate, chip,
+ SNDRV_PCM_HW_PARAM_RATE, -1)) < 0)
+ return err;
+
+ /* Finally allocate a page for the scatter-gather list */
+ if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(chip->pci),
+ PAGE_SIZE, &pipe->sgpage)) < 0) {
+ DE_HWP(("s-g list allocation failed\n"));
+ return err;
+ }
+
+ return 0;
+}
+
+
+
+static int pcm_analog_in_open(struct snd_pcm_substream *substream)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+ int err;
+
+ DE_ACT(("pcm_analog_in_open\n"));
+ if ((err = pcm_open(substream, num_analog_busses_in(chip) -
+ substream->number)) < 0)
+ return err;
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_capture_channels_by_format, NULL,
+ SNDRV_PCM_HW_PARAM_FORMAT, -1)) < 0)
+ return err;
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ hw_rule_capture_format_by_channels, NULL,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1)) < 0)
+ return err;
+ atomic_inc(&chip->opencount);
+ if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
+ chip->can_set_rate=0;
+ DE_HWP(("pcm_analog_in_open cs=%d oc=%d r=%d\n",
+ chip->can_set_rate, atomic_read(&chip->opencount),
+ chip->sample_rate));
+ return 0;
+}
+
+
+
+static int pcm_analog_out_open(struct snd_pcm_substream *substream)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+ int max_channels, err;
+
+#ifdef ECHOCARD_HAS_VMIXER
+ max_channels = num_pipes_out(chip);
+#else
+ max_channels = num_analog_busses_out(chip);
+#endif
+ DE_ACT(("pcm_analog_out_open\n"));
+ if ((err = pcm_open(substream, max_channels - substream->number)) < 0)
+ return err;
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_playback_channels_by_format,
+ NULL,
+ SNDRV_PCM_HW_PARAM_FORMAT, -1)) < 0)
+ return err;
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ hw_rule_playback_format_by_channels,
+ NULL,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1)) < 0)
+ return err;
+ atomic_inc(&chip->opencount);
+ if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
+ chip->can_set_rate=0;
+ DE_HWP(("pcm_analog_out_open cs=%d oc=%d r=%d\n",
+ chip->can_set_rate, atomic_read(&chip->opencount),
+ chip->sample_rate));
+ return 0;
+}
+
+
+
+#ifdef ECHOCARD_HAS_DIGITAL_IO
+
+static int pcm_digital_in_open(struct snd_pcm_substream *substream)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+ int err, max_channels;
+
+ DE_ACT(("pcm_digital_in_open\n"));
+ max_channels = num_digital_busses_in(chip) - substream->number;
+ down(&chip->mode_mutex);
+ if (chip->digital_mode == DIGITAL_MODE_ADAT)
+ err = pcm_open(substream, max_channels);
+ else /* If the card has ADAT, subtract the 6 channels
+ * that S/PDIF doesn't have
+ */
+ err = pcm_open(substream, max_channels - ECHOCARD_HAS_ADAT);
+
+ if (err < 0)
+ goto din_exit;
+
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_capture_channels_by_format, NULL,
+ SNDRV_PCM_HW_PARAM_FORMAT, -1)) < 0)
+ goto din_exit;
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ hw_rule_capture_format_by_channels, NULL,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1)) < 0)
+ goto din_exit;
+
+ atomic_inc(&chip->opencount);
+ if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
+ chip->can_set_rate=0;
+
+din_exit:
+ up(&chip->mode_mutex);
+ return err;
+}
+
+
+
+#ifndef ECHOCARD_HAS_VMIXER /* See the note in snd_echo_new_pcm() */
+
+static int pcm_digital_out_open(struct snd_pcm_substream *substream)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+ int err, max_channels;
+
+ DE_ACT(("pcm_digital_out_open\n"));
+ max_channels = num_digital_busses_out(chip) - substream->number;
+ down(&chip->mode_mutex);
+ if (chip->digital_mode == DIGITAL_MODE_ADAT)
+ err = pcm_open(substream, max_channels);
+ else /* If the card has ADAT, subtract the 6 channels
+ * that S/PDIF doesn't have
+ */
+ err = pcm_open(substream, max_channels - ECHOCARD_HAS_ADAT);
+
+ if (err < 0)
+ goto dout_exit;
+
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_playback_channels_by_format,
+ NULL, SNDRV_PCM_HW_PARAM_FORMAT,
+ -1)) < 0)
+ goto dout_exit;
+ if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ hw_rule_playback_format_by_channels,
+ NULL, SNDRV_PCM_HW_PARAM_CHANNELS,
+ -1)) < 0)
+ goto dout_exit;
+ atomic_inc(&chip->opencount);
+ if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
+ chip->can_set_rate=0;
+dout_exit:
+ up(&chip->mode_mutex);
+ return err;
+}
+
+#endif /* !ECHOCARD_HAS_VMIXER */
+
+#endif /* ECHOCARD_HAS_DIGITAL_IO */
+
+
+
+static int pcm_close(struct snd_pcm_substream *substream)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+ int oc;
+
+ /* Nothing to do here. Audio is already off and pipe will be
+ * freed by its callback
+ */
+ DE_ACT(("pcm_close\n"));
+
+ atomic_dec(&chip->opencount);
+ oc = atomic_read(&chip->opencount);
+ DE_ACT(("pcm_close oc=%d cs=%d rs=%d\n", oc,
+ chip->can_set_rate, chip->rate_set));
+ if (oc < 2)
+ chip->can_set_rate = 1;
+ if (oc == 0)
+ chip->rate_set = 0;
+ DE_ACT(("pcm_close2 oc=%d cs=%d rs=%d\n", oc,
+ chip->can_set_rate,chip->rate_set));
+
+ return 0;
+}
+
+
+
+/* Channel allocation and scatter-gather list setup */
+static int init_engine(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params,
+ int pipe_index, int interleave)
+{
+ struct echoaudio *chip;
+ int err, per, rest, page, edge, offs;
+ struct snd_sg_buf *sgbuf;
+ struct audiopipe *pipe;
+
+ chip = snd_pcm_substream_chip(substream);
+ pipe = (struct audiopipe *) substream->runtime->private_data;
+
+ /* Sets up che hardware. If it's already initialized, reset and
+ * redo with the new parameters
+ */
+ spin_lock_irq(&chip->lock);
+ if (pipe->index >= 0) {
+ DE_HWP(("hwp_ie free(%d)\n", pipe->index));
+ err = free_pipes(chip, pipe);
+ snd_assert(!err);
+ chip->substream[pipe->index] = NULL;
+ }
+
+ err = allocate_pipes(chip, pipe, pipe_index, interleave);
+ if (err < 0) {
+ spin_unlock_irq(&chip->lock);
+ DE_ACT((KERN_NOTICE "allocate_pipes(%d) err=%d\n",
+ pipe_index, err));
+ return err;
+ }
+ spin_unlock_irq(&chip->lock);
+ DE_ACT((KERN_NOTICE "allocate_pipes()=%d\n", pipe_index));
+
+ DE_HWP(("pcm_hw_params (bufsize=%dB periods=%d persize=%dB)\n",
+ params_buffer_bytes(hw_params), params_periods(hw_params),
+ params_period_bytes(hw_params)));
+ err = snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(hw_params));
+ if (err < 0) {
+ snd_printk(KERN_ERR "malloc_pages err=%d\n", err);
+ spin_lock_irq(&chip->lock);
+ free_pipes(chip, pipe);
+ spin_unlock_irq(&chip->lock);
+ pipe->index = -1;
+ return err;
+ }
+
+ sgbuf = snd_pcm_substream_sgbuf(substream);
+
+ DE_HWP(("pcm_hw_params table size=%d pages=%d\n",
+ sgbuf->size, sgbuf->pages));
+ sglist_init(chip, pipe);
+ edge = PAGE_SIZE;
+ for (offs = page = per = 0; offs < params_buffer_bytes(hw_params);
+ per++) {
+ rest = params_period_bytes(hw_params);
+ if (offs + rest > params_buffer_bytes(hw_params))
+ rest = params_buffer_bytes(hw_params) - offs;
+ while (rest) {
+ if (rest <= edge - offs) {
+ sglist_add_mapping(chip, pipe,
+ snd_sgbuf_get_addr(sgbuf, offs),
+ rest);
+ sglist_add_irq(chip, pipe);
+ offs += rest;
+ rest = 0;
+ } else {
+ sglist_add_mapping(chip, pipe,
+ snd_sgbuf_get_addr(sgbuf, offs),
+ edge - offs);
+ rest -= edge - offs;
+ offs = edge;
+ }
+ if (offs == edge) {
+ edge += PAGE_SIZE;
+ page++;
+ }
+ }
+ }
+
+ /* Close the ring buffer */
+ sglist_wrap(chip, pipe);
+
+ /* This stuff is used by the irq handler, so it must be
+ * initialized before chip->substream
+ */
+ chip->last_period[pipe_index] = 0;
+ pipe->last_counter = 0;
+ pipe->position = 0;
+ smp_wmb();
+ chip->substream[pipe_index] = substream;
+ chip->rate_set = 1;
+ spin_lock_irq(&chip->lock);
+ set_sample_rate(chip, hw_params->rate_num / hw_params->rate_den);
+ spin_unlock_irq(&chip->lock);
+ DE_HWP(("pcm_hw_params ok\n"));
+ return 0;
+}
+
+
+
+static int pcm_analog_in_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+
+ return init_engine(substream, hw_params, px_analog_in(chip) +
+ substream->number, params_channels(hw_params));
+}
+
+
+
+static int pcm_analog_out_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ return init_engine(substream, hw_params, substream->number,
+ params_channels(hw_params));
+}
+
+
+
+#ifdef ECHOCARD_HAS_DIGITAL_IO
+
+static int pcm_digital_in_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+
+ return init_engine(substream, hw_params, px_digital_in(chip) +
+ substream->number, params_channels(hw_params));
+}
+
+
+
+#ifndef ECHOCARD_HAS_VMIXER /* See the note in snd_echo_new_pcm() */
+static int pcm_digital_out_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+
+ return init_engine(substream, hw_params, px_digital_out(chip) +
+ substream->number, params_channels(hw_params));
+}
+#endif /* !ECHOCARD_HAS_VMIXER */
+
+#endif /* ECHOCARD_HAS_DIGITAL_IO */
+
+
+
+static int pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct echoaudio *chip;
+ struct audiopipe *pipe;
+
+ chip = snd_pcm_substream_chip(substream);
+ pipe = (struct audiopipe *) substream->runtime->private_data;
+
+ spin_lock_irq(&chip->lock);
+ if (pipe->index >= 0) {
+ DE_HWP(("pcm_hw_free(%d)\n", pipe->index));
+ free_pipes(chip, pipe);
+ chip->substream[pipe->index] = NULL;
+ pipe->index = -1;
+ }
+ spin_unlock_irq(&chip->lock);
+
+ DE_HWP(("pcm_hw_freed\n"));
+ snd_pcm_lib_free_pages(substream);
+ return 0;
+}
+
+
+
+static int pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct audioformat format;
+ int pipe_index = ((struct audiopipe *)runtime->private_data)->index;
+
+ DE_HWP(("Prepare rate=%d format=%d channels=%d\n",
+ runtime->rate, runtime->format, runtime->channels));
+ format.interleave = runtime->channels;
+ format.data_are_bigendian = 0;
+ format.mono_to_stereo = 0;
+ switch (runtime->format) {
+ case SNDRV_PCM_FORMAT_U8:
+ format.bits_per_sample = 8;
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ format.bits_per_sample = 16;
+ break;
+ case SNDRV_PCM_FORMAT_S24_3LE:
+ format.bits_per_sample = 24;
+ break;
+ case SNDRV_PCM_FORMAT_S32_BE:
+ format.data_are_bigendian = 1;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ format.bits_per_sample = 32;
+ break;
+ default:
+ DE_HWP(("Prepare error: unsupported format %d\n",
+ runtime->format));
+ return -EINVAL;
+ }
+
+ snd_assert(pipe_index < px_num(chip), return -EINVAL);
+ snd_assert(is_pipe_allocated(chip, pipe_index), return -EINVAL);
+ set_audio_format(chip, pipe_index, &format);
+ return 0;
+}
+
+
+
+static int pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct echoaudio *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct audiopipe *pipe = runtime->private_data;
+ int i, err;
+ u32 channelmask = 0;
+ struct list_head *pos;
+ struct snd_pcm_substream *s;
+
+ snd_pcm_group_for_each(pos, substream) {
+ s = snd_pcm_group_substream_entry(pos);
+ for (i = 0; i < DSP_MAXPIPES; i++) {
+ if (s == chip->substream[i]) {
+ channelmask |= 1 << i;
+ snd_pcm_trigger_done(s, substream);
+ }
+ }
+ }
+
+ spin_lock(&chip->lock);
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ DE_ACT(("pcm_trigger start\n"));
+ for (i = 0; i < DSP_MAXPIPES; i++) {
+ if (channelmask & (1 << i)) {
+ pipe = chip->substream[i]->runtime->private_data;
+ switch (pipe->state) {
+ case PIPE_STATE_STOPPED:
+ chip->last_period[i] = 0;
+ pipe->last_counter = 0;
+ pipe->position = 0;
+ *pipe->dma_counter = 0;
+ case PIPE_STATE_PAUSED:
+ pipe->state = PIPE_STATE_STARTED;
+ break;
+ case PIPE_STATE_STARTED:
+ break;
+ }
+ }
+ }
+ err = start_transport(chip, channelmask,
+ chip->pipe_cyclic_mask);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ DE_ACT(("pcm_trigger stop\n"));
+ for (i = 0; i < DSP_MAXPIPES; i++) {
+ if (channelmask & (1 << i)) {
+ pipe = chip->substream[i]->runtime->private_data;
+ pipe->state = PIPE_STATE_STOPPED;
+ }
+ }
+ err = stop_transport(chip, channelmask);
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ DE_ACT(("pcm_trigger pause\n"));
+ for (i = 0; i < DSP_MAXPIPES; i++) {
+ if (channelmask & (1 << i)) {
+ pipe = chip->substream[i]->runtime->private_data;
+ pipe->state = PIPE_STATE_PAUSED;
+ }
+ }
+ err = pause_transport(chip, channelmask);
+ break;
+ default:
+ err = -EINVAL;
+ }
+ spin_unlock(&chip->lock);
+ return err;
+}
+
+
+
+static snd_pcm_uframes_t pcm_pointer(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct audiopipe *pipe = runtime->private_data;
+ size_t cnt, bufsize, pos;
+
+ cnt = le32_to_cpu(*pipe->dma_counter);
+ pipe->position += cnt - pipe->last_counter;
+ pipe->last_counter = cnt;
+ bufsize = substream->runtime->buffer_size;
+ pos = bytes_to_frames(substream->runtime, pipe->position);
+
+ while (pos >= bufsize) {
+ pipe->position -= frames_to_bytes(substream->runtime, bufsize);
+ pos -= bufsize;
+ }
+ return pos;
+}
+
+
+
+/* pcm *_ops structures */
+static struct snd_pcm_ops analog_playback_ops = {
+ .open = pcm_analog_out_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_analog_out_hw_params,
+ .hw_free = pcm_hw_free,
+ .prepare = pcm_prepare,
+ .trigger = pcm_trigger,
+ .pointer = pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+static struct snd_pcm_ops analog_capture_ops = {
+ .open = pcm_analog_in_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_analog_in_hw_params,
+ .hw_free = pcm_hw_free,
+ .prepare = pcm_prepare,
+ .trigger = pcm_trigger,
+ .pointer = pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+#ifdef ECHOCARD_HAS_DIGITAL_IO
+#ifndef ECHOCARD_HAS_VMIXER
+static struct snd_pcm_ops digital_playback_ops = {
+ .open = pcm_digital_out_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_digital_out_hw_params,
+ .hw_free = pcm_hw_free,
+ .prepare = pcm_prepare,
+ .trigger = pcm_trigger,
+ .pointer = pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+#endif /* !ECHOCARD_HAS_VMIXER */
+static struct snd_pcm_ops digital_capture_ops = {
+ .open = pcm_digital_in_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_digital_in_hw_params,
+ .hw_free = pcm_hw_free,
+ .prepare = pcm_prepare,
+ .trigger = pcm_trigger,
+ .pointer = pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+#endif /* ECHOCARD_HAS_DIGITAL_IO */
+
+
+
+/* Preallocate memory only for the first substream because it's the most
+ * used one
+ */
+static int snd_echo_preallocate_pages(struct snd_pcm *pcm, struct device *dev)
+{
+ struct snd_pcm_substream *ss;
+ int stream, err;
+
+ for (stream = 0; stream < 2; stream++)
+ for (ss = pcm->streams[stream].substream; ss; ss = ss->next) {
+ err = snd_pcm_lib_preallocate_pages(ss, SNDRV_DMA_TYPE_DEV_SG,
+ dev,
+ ss->number ? 0 : 128<<10,
+ 256<<10);
+ if (err < 0)
+ return err;
+ }
+ return 0;
+}
+
+
+
+/*<--snd_echo_probe() */
+static int __devinit snd_echo_new_pcm(struct echoaudio *chip)
+{
+ struct snd_pcm *pcm;
+ int err;
+
+#ifdef ECHOCARD_HAS_VMIXER
+ /* This card has a Vmixer, that is there is no direct mapping from PCM
+ streams to physical outputs. The user can mix the streams as he wishes
+ via control interface and it's possible to send any stream to any
+ output, thus it makes no sense to keep analog and digital outputs
+ separated */
+
+ /* PCM#0 Virtual outputs and analog inputs */
+ if ((err = snd_pcm_new(chip->card, "PCM", 0, num_pipes_out(chip),
+ num_analog_busses_in(chip), &pcm)) < 0)
+ return err;
+ pcm->private_data = chip;
+ chip->analog_pcm = pcm;
+ strcpy(pcm->name, chip->card->shortname);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &analog_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &analog_capture_ops);
+ if ((err = snd_echo_preallocate_pages(pcm, snd_dma_pci_data(chip->pci))) < 0)
+ return err;
+ DE_INIT(("Analog PCM ok\n"));
+
+#ifdef ECHOCARD_HAS_DIGITAL_IO
+ /* PCM#1 Digital inputs, no outputs */
+ if ((err = snd_pcm_new(chip->card, "Digital PCM", 1, 0,
+ num_digital_busses_in(chip), &pcm)) < 0)
+ return err;
+ pcm->private_data = chip;
+ chip->digital_pcm = pcm;
+ strcpy(pcm->name, chip->card->shortname);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &digital_capture_ops);
+ if ((err = snd_echo_preallocate_pages(pcm, snd_dma_pci_data(chip->pci))) < 0)
+ return err;
+ DE_INIT(("Digital PCM ok\n"));
+#endif /* ECHOCARD_HAS_DIGITAL_IO */
+
+#else /* ECHOCARD_HAS_VMIXER */
+
+ /* The card can manage substreams formed by analog and digital channels
+ at the same time, but I prefer to keep analog and digital channels
+ separated, because that mixed thing is confusing and useless. So we
+ register two PCM devices: */
+
+ /* PCM#0 Analog i/o */
+ if ((err = snd_pcm_new(chip->card, "Analog PCM", 0,
+ num_analog_busses_out(chip),
+ num_analog_busses_in(chip), &pcm)) < 0)
+ return err;
+ pcm->private_data = chip;
+ chip->analog_pcm = pcm;
+ strcpy(pcm->name, chip->card->shortname);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &analog_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &analog_capture_ops);
+ if ((err = snd_echo_preallocate_pages(pcm, snd_dma_pci_data(chip->pci))) < 0)
+ return err;
+ DE_INIT(("Analog PCM ok\n"));
+
+#ifdef ECHOCARD_HAS_DIGITAL_IO
+ /* PCM#1 Digital i/o */
+ if ((err = snd_pcm_new(chip->card, "Digital PCM", 1,
+ num_digital_busses_out(chip),
+ num_digital_busses_in(chip), &pcm)) < 0)
+ return err;
+ pcm->private_data = chip;
+ chip->digital_pcm = pcm;
+ strcpy(pcm->name, chip->card->shortname);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &digital_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &digital_capture_ops);
+ if ((err = snd_echo_preallocate_pages(pcm, snd_dma_pci_data(chip->pci))) < 0)
+ return err;
+ DE_INIT(("Digital PCM ok\n"));
+#endif /* ECHOCARD_HAS_DIGITAL_IO */
+
+#endif /* ECHOCARD_HAS_VMIXER */
+
+ return 0;
+}
+
+
+
+
+/******************************************************************************
+ Control interface
+******************************************************************************/
+
+/******************* PCM output volume *******************/
+static int snd_echo_output_gain_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = num_busses_out(chip);
+ uinfo->value.integer.min = ECHOGAIN_MINOUT;
+ uinfo->value.integer.max = ECHOGAIN_MAXOUT;
+ return 0;
+}
+
+static int snd_echo_output_gain_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int c;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ for (c = 0; c < num_busses_out(chip); c++)
+ ucontrol->value.integer.value[c] = chip->output_gain[c];
+ return 0;
+}
+
+static int snd_echo_output_gain_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int c, changed, gain;
+
+ changed = 0;
+ chip = snd_kcontrol_chip(kcontrol);
+ spin_lock_irq(&chip->lock);
+ for (c = 0; c < num_busses_out(chip); c++) {
+ gain = ucontrol->value.integer.value[c];
+ /* Ignore out of range values */
+ if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
+ continue;
+ if (chip->output_gain[c] != gain) {
+ set_output_gain(chip, c, gain);
+ changed = 1;
+ }
+ }
+ if (changed)
+ update_output_line_level(chip);
+ spin_unlock_irq(&chip->lock);
+ return changed;
+}
+
+#ifdef ECHOCARD_HAS_VMIXER
+/* On Vmixer cards this one controls the line-out volume */
+static struct snd_kcontrol_new snd_echo_line_output_gain __devinitdata = {
+ .name = "Line Playback Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_echo_output_gain_info,
+ .get = snd_echo_output_gain_get,
+ .put = snd_echo_output_gain_put,
+};
+#else
+static struct snd_kcontrol_new snd_echo_pcm_output_gain __devinitdata = {
+ .name = "PCM Playback Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_echo_output_gain_info,
+ .get = snd_echo_output_gain_get,
+ .put = snd_echo_output_gain_put,
+};
+#endif
+
+
+
+#ifdef ECHOCARD_HAS_INPUT_GAIN
+
+/******************* Analog input volume *******************/
+static int snd_echo_input_gain_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = num_analog_busses_in(chip);
+ uinfo->value.integer.min = ECHOGAIN_MININP;
+ uinfo->value.integer.max = ECHOGAIN_MAXINP;
+ return 0;
+}
+
+static int snd_echo_input_gain_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int c;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ for (c = 0; c < num_analog_busses_in(chip); c++)
+ ucontrol->value.integer.value[c] = chip->input_gain[c];
+ return 0;
+}
+
+static int snd_echo_input_gain_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int c, gain, changed;
+
+ changed = 0;
+ chip = snd_kcontrol_chip(kcontrol);
+ spin_lock_irq(&chip->lock);
+ for (c = 0; c < num_analog_busses_in(chip); c++) {
+ gain = ucontrol->value.integer.value[c];
+ /* Ignore out of range values */
+ if (gain < ECHOGAIN_MININP || gain > ECHOGAIN_MAXINP)
+ continue;
+ if (chip->input_gain[c] != gain) {
+ set_input_gain(chip, c, gain);
+ changed = 1;
+ }
+ }
+ if (changed)
+ update_input_line_level(chip);
+ spin_unlock_irq(&chip->lock);
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_line_input_gain __devinitdata = {
+ .name = "Line Capture Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_echo_input_gain_info,
+ .get = snd_echo_input_gain_get,
+ .put = snd_echo_input_gain_put,
+};
+
+#endif /* ECHOCARD_HAS_INPUT_GAIN */
+
+
+
+#ifdef ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL
+
+/************ Analog output nominal level (+4dBu / -10dBV) ***************/
+static int snd_echo_output_nominal_info (struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = num_analog_busses_out(chip);
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int snd_echo_output_nominal_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int c;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ for (c = 0; c < num_analog_busses_out(chip); c++)
+ ucontrol->value.integer.value[c] = chip->nominal_level[c];
+ return 0;
+}
+
+static int snd_echo_output_nominal_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int c, changed;
+
+ changed = 0;
+ chip = snd_kcontrol_chip(kcontrol);
+ spin_lock_irq(&chip->lock);
+ for (c = 0; c < num_analog_busses_out(chip); c++) {
+ if (chip->nominal_level[c] != ucontrol->value.integer.value[c]) {
+ set_nominal_level(chip, c,
+ ucontrol->value.integer.value[c]);
+ changed = 1;
+ }
+ }
+ if (changed)
+ update_output_line_level(chip);
+ spin_unlock_irq(&chip->lock);
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_output_nominal_level __devinitdata = {
+ .name = "Line Playback Switch (-10dBV)",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_echo_output_nominal_info,
+ .get = snd_echo_output_nominal_get,
+ .put = snd_echo_output_nominal_put,
+};
+
+#endif /* ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL */
+
+
+
+#ifdef ECHOCARD_HAS_INPUT_NOMINAL_LEVEL
+
+/*************** Analog input nominal level (+4dBu / -10dBV) ***************/
+static int snd_echo_input_nominal_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = num_analog_busses_in(chip);
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int snd_echo_input_nominal_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int c;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ for (c = 0; c < num_analog_busses_in(chip); c++)
+ ucontrol->value.integer.value[c] =
+ chip->nominal_level[bx_analog_in(chip) + c];
+ return 0;
+}
+
+static int snd_echo_input_nominal_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int c, changed;
+
+ changed = 0;
+ chip = snd_kcontrol_chip(kcontrol);
+ spin_lock_irq(&chip->lock);
+ for (c = 0; c < num_analog_busses_in(chip); c++) {
+ if (chip->nominal_level[bx_analog_in(chip) + c] !=
+ ucontrol->value.integer.value[c]) {
+ set_nominal_level(chip, bx_analog_in(chip) + c,
+ ucontrol->value.integer.value[c]);
+ changed = 1;
+ }
+ }
+ if (changed)
+ update_output_line_level(chip); /* "Output" is not a mistake
+ * here.
+ */
+ spin_unlock_irq(&chip->lock);
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_intput_nominal_level __devinitdata = {
+ .name = "Line Capture Switch (-10dBV)",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_echo_input_nominal_info,
+ .get = snd_echo_input_nominal_get,
+ .put = snd_echo_input_nominal_put,
+};
+
+#endif /* ECHOCARD_HAS_INPUT_NOMINAL_LEVEL */
+
+
+
+#ifdef ECHOCARD_HAS_MONITOR
+
+/******************* Monitor mixer *******************/
+static int snd_echo_mixer_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = ECHOGAIN_MINOUT;
+ uinfo->value.integer.max = ECHOGAIN_MAXOUT;
+ uinfo->dimen.d[0] = num_busses_out(chip);
+ uinfo->dimen.d[1] = num_busses_in(chip);
+ return 0;
+}
+
+static int snd_echo_mixer_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] =
+ chip->monitor_gain[ucontrol->id.index / num_busses_in(chip)]
+ [ucontrol->id.index % num_busses_in(chip)];
+ return 0;
+}
+
+static int snd_echo_mixer_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int changed, gain;
+ short out, in;
+
+ changed = 0;
+ chip = snd_kcontrol_chip(kcontrol);
+ out = ucontrol->id.index / num_busses_in(chip);
+ in = ucontrol->id.index % num_busses_in(chip);
+ gain = ucontrol->value.integer.value[0];
+ if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
+ return -EINVAL;
+ if (chip->monitor_gain[out][in] != gain) {
+ spin_lock_irq(&chip->lock);
+ set_monitor_gain(chip, out, in, gain);
+ update_output_line_level(chip);
+ spin_unlock_irq(&chip->lock);
+ changed = 1;
+ }
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_monitor_mixer __devinitdata = {
+ .name = "Monitor Mixer Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_echo_mixer_info,
+ .get = snd_echo_mixer_get,
+ .put = snd_echo_mixer_put,
+};
+
+#endif /* ECHOCARD_HAS_MONITOR */
+
+
+
+#ifdef ECHOCARD_HAS_VMIXER
+
+/******************* Vmixer *******************/
+static int snd_echo_vmixer_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = ECHOGAIN_MINOUT;
+ uinfo->value.integer.max = ECHOGAIN_MAXOUT;
+ uinfo->dimen.d[0] = num_busses_out(chip);
+ uinfo->dimen.d[1] = num_pipes_out(chip);
+ return 0;
+}
+
+static int snd_echo_vmixer_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] =
+ chip->vmixer_gain[ucontrol->id.index / num_pipes_out(chip)]
+ [ucontrol->id.index % num_pipes_out(chip)];
+ return 0;
+}
+
+static int snd_echo_vmixer_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int gain, changed;
+ short vch, out;
+
+ changed = 0;
+ chip = snd_kcontrol_chip(kcontrol);
+ out = ucontrol->id.index / num_pipes_out(chip);
+ vch = ucontrol->id.index % num_pipes_out(chip);
+ gain = ucontrol->value.integer.value[0];
+ if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
+ return -EINVAL;
+ if (chip->vmixer_gain[out][vch] != ucontrol->value.integer.value[0]) {
+ spin_lock_irq(&chip->lock);
+ set_vmixer_gain(chip, out, vch, ucontrol->value.integer.value[0]);
+ update_vmixer_level(chip);
+ spin_unlock_irq(&chip->lock);
+ changed = 1;
+ }
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_vmixer __devinitdata = {
+ .name = "VMixer Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_echo_vmixer_info,
+ .get = snd_echo_vmixer_get,
+ .put = snd_echo_vmixer_put,
+};
+
+#endif /* ECHOCARD_HAS_VMIXER */
+
+
+
+#ifdef ECHOCARD_HAS_DIGITAL_MODE_SWITCH
+
+/******************* Digital mode switch *******************/
+static int snd_echo_digital_mode_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static char *names[4] = {
+ "S/PDIF Coaxial", "S/PDIF Optical", "ADAT Optical",
+ "S/PDIF Cdrom"
+ };
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->value.enumerated.items = chip->num_digital_modes;
+ uinfo->count = 1;
+ if (uinfo->value.enumerated.item >= chip->num_digital_modes)
+ uinfo->value.enumerated.item = chip->num_digital_modes - 1;
+ strcpy(uinfo->value.enumerated.name, names[
+ chip->digital_mode_list[uinfo->value.enumerated.item]]);
+ return 0;
+}
+
+static int snd_echo_digital_mode_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int i, mode;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ mode = chip->digital_mode;
+ for (i = chip->num_digital_modes - 1; i >= 0; i--)
+ if (mode == chip->digital_mode_list[i]) {
+ ucontrol->value.enumerated.item[0] = i;
+ break;
+ }
+ return 0;
+}
+
+static int snd_echo_digital_mode_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int changed;
+ unsigned short emode, dmode;
+
+ changed = 0;
+ chip = snd_kcontrol_chip(kcontrol);
+
+ emode = ucontrol->value.enumerated.item[0];
+ if (emode >= chip->num_digital_modes)
+ return -EINVAL;
+ dmode = chip->digital_mode_list[emode];
+
+ if (dmode != chip->digital_mode) {
+ /* mode_mutex is required to make this operation atomic wrt
+ pcm_digital_*_open() and set_input_clock() functions. */
+ down(&chip->mode_mutex);
+
+ /* Do not allow the user to change the digital mode when a pcm
+ device is open because it also changes the number of channels
+ and the allowed sample rates */
+ if (atomic_read(&chip->opencount)) {
+ changed = -EAGAIN;
+ } else {
+ changed = set_digital_mode(chip, dmode);
+ /* If we had to change the clock source, report it */
+ if (changed > 0 && chip->clock_src_ctl) {
+ snd_ctl_notify(chip->card,
+ SNDRV_CTL_EVENT_MASK_VALUE,
+ &chip->clock_src_ctl->id);
+ DE_ACT(("SDM() =%d\n", changed));
+ }
+ if (changed >= 0)
+ changed = 1; /* No errors */
+ }
+ up(&chip->mode_mutex);
+ }
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_digital_mode_switch __devinitdata = {
+ .name = "Digital mode Switch",
+ .iface = SNDRV_CTL_ELEM_IFACE_CARD,
+ .info = snd_echo_digital_mode_info,
+ .get = snd_echo_digital_mode_get,
+ .put = snd_echo_digital_mode_put,
+};
+
+#endif /* ECHOCARD_HAS_DIGITAL_MODE_SWITCH */
+
+
+
+#ifdef ECHOCARD_HAS_DIGITAL_IO
+
+/******************* S/PDIF mode switch *******************/
+static int snd_echo_spdif_mode_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static char *names[2] = {"Consumer", "Professional"};
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->value.enumerated.items = 2;
+ uinfo->count = 1;
+ if (uinfo->value.enumerated.item)
+ uinfo->value.enumerated.item = 1;
+ strcpy(uinfo->value.enumerated.name,
+ names[uinfo->value.enumerated.item]);
+ return 0;
+}
+
+static int snd_echo_spdif_mode_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.enumerated.item[0] = !!chip->professional_spdif;
+ return 0;
+}
+
+static int snd_echo_spdif_mode_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int mode;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ mode = !!ucontrol->value.enumerated.item[0];
+ if (mode != chip->professional_spdif) {
+ spin_lock_irq(&chip->lock);
+ set_professional_spdif(chip, mode);
+ spin_unlock_irq(&chip->lock);
+ return 1;
+ }
+ return 0;
+}
+
+static struct snd_kcontrol_new snd_echo_spdif_mode_switch __devinitdata = {
+ .name = "S/PDIF mode Switch",
+ .iface = SNDRV_CTL_ELEM_IFACE_CARD,
+ .info = snd_echo_spdif_mode_info,
+ .get = snd_echo_spdif_mode_get,
+ .put = snd_echo_spdif_mode_put,
+};
+
+#endif /* ECHOCARD_HAS_DIGITAL_IO */
+
+
+
+#ifdef ECHOCARD_HAS_EXTERNAL_CLOCK
+
+/******************* Select input clock source *******************/
+static int snd_echo_clock_source_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static char *names[8] = {
+ "Internal", "Word", "Super", "S/PDIF", "ADAT", "ESync",
+ "ESync96", "MTC"
+ };
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->value.enumerated.items = chip->num_clock_sources;
+ uinfo->count = 1;
+ if (uinfo->value.enumerated.item >= chip->num_clock_sources)
+ uinfo->value.enumerated.item = chip->num_clock_sources - 1;
+ strcpy(uinfo->value.enumerated.name, names[
+ chip->clock_source_list[uinfo->value.enumerated.item]]);
+ return 0;
+}
+
+static int snd_echo_clock_source_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int i, clock;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ clock = chip->input_clock;
+
+ for (i = 0; i < chip->num_clock_sources; i++)
+ if (clock == chip->clock_source_list[i])
+ ucontrol->value.enumerated.item[0] = i;
+
+ return 0;
+}
+
+static int snd_echo_clock_source_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int changed;
+ unsigned int eclock, dclock;
+
+ changed = 0;
+ chip = snd_kcontrol_chip(kcontrol);
+ eclock = ucontrol->value.enumerated.item[0];
+ if (eclock >= chip->input_clock_types)
+ return -EINVAL;
+ dclock = chip->clock_source_list[eclock];
+ if (chip->input_clock != dclock) {
+ down(&chip->mode_mutex);
+ spin_lock_irq(&chip->lock);
+ if ((changed = set_input_clock(chip, dclock)) == 0)
+ changed = 1; /* no errors */
+ spin_unlock_irq(&chip->lock);
+ up(&chip->mode_mutex);
+ }
+
+ if (changed < 0)
+ DE_ACT(("seticlk val%d err 0x%x\n", dclock, changed));
+
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_clock_source_switch __devinitdata = {
+ .name = "Sample Clock Source",
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .info = snd_echo_clock_source_info,
+ .get = snd_echo_clock_source_get,
+ .put = snd_echo_clock_source_put,
+};
+
+#endif /* ECHOCARD_HAS_EXTERNAL_CLOCK */
+
+
+
+#ifdef ECHOCARD_HAS_PHANTOM_POWER
+
+/******************* Phantom power switch *******************/
+static int snd_echo_phantom_power_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 snd_echo_phantom_power_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] = chip->phantom_power;
+ return 0;
+}
+
+static int snd_echo_phantom_power_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
+ int power, changed = 0;
+
+ power = !!ucontrol->value.integer.value[0];
+ if (chip->phantom_power != power) {
+ spin_lock_irq(&chip->lock);
+ changed = set_phantom_power(chip, power);
+ spin_unlock_irq(&chip->lock);
+ if (changed == 0)
+ changed = 1; /* no errors */
+ }
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_phantom_power_switch __devinitdata = {
+ .name = "Phantom power Switch",
+ .iface = SNDRV_CTL_ELEM_IFACE_CARD,
+ .info = snd_echo_phantom_power_info,
+ .get = snd_echo_phantom_power_get,
+ .put = snd_echo_phantom_power_put,
+};
+
+#endif /* ECHOCARD_HAS_PHANTOM_POWER */
+
+
+
+#ifdef ECHOCARD_HAS_DIGITAL_IN_AUTOMUTE
+
+/******************* Digital input automute switch *******************/
+static int snd_echo_automute_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 snd_echo_automute_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] = chip->digital_in_automute;
+ return 0;
+}
+
+static int snd_echo_automute_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
+ int automute, changed = 0;
+
+ automute = !!ucontrol->value.integer.value[0];
+ if (chip->digital_in_automute != automute) {
+ spin_lock_irq(&chip->lock);
+ changed = set_input_auto_mute(chip, automute);
+ spin_unlock_irq(&chip->lock);
+ if (changed == 0)
+ changed = 1; /* no errors */
+ }
+ return changed;
+}
+
+static struct snd_kcontrol_new snd_echo_automute_switch __devinitdata = {
+ .name = "Digital Capture Switch (automute)",
+ .iface = SNDRV_CTL_ELEM_IFACE_CARD,
+ .info = snd_echo_automute_info,
+ .get = snd_echo_automute_get,
+ .put = snd_echo_automute_put,
+};
+
+#endif /* ECHOCARD_HAS_DIGITAL_IN_AUTOMUTE */
+
+
+
+/******************* VU-meters switch *******************/
+static int snd_echo_vumeters_switch_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int snd_echo_vumeters_switch_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ spin_lock_irq(&chip->lock);
+ set_meters_on(chip, ucontrol->value.integer.value[0]);
+ spin_unlock_irq(&chip->lock);
+ return 1;
+}
+
+static struct snd_kcontrol_new snd_echo_vumeters_switch __devinitdata = {
+ .name = "VU-meters Switch",
+ .iface = SNDRV_CTL_ELEM_IFACE_CARD,
+ .access = SNDRV_CTL_ELEM_ACCESS_WRITE,
+ .info = snd_echo_vumeters_switch_info,
+ .put = snd_echo_vumeters_switch_put,
+};
+
+
+
+/***** Read VU-meters (input, output, analog and digital together) *****/
+static int snd_echo_vumeters_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 96;
+ uinfo->value.integer.min = ECHOGAIN_MINOUT;
+ uinfo->value.integer.max = 0;
+#ifdef ECHOCARD_HAS_VMIXER
+ uinfo->dimen.d[0] = 3; /* Out, In, Virt */
+#else
+ uinfo->dimen.d[0] = 2; /* Out, In */
+#endif
+ uinfo->dimen.d[1] = 16; /* 16 channels */
+ uinfo->dimen.d[2] = 2; /* 0=level, 1=peak */
+ return 0;
+}
+
+static int snd_echo_vumeters_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ get_audio_meters(chip, ucontrol->value.integer.value);
+ return 0;
+}
+
+static struct snd_kcontrol_new snd_echo_vumeters __devinitdata = {
+ .name = "VU-meters",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = snd_echo_vumeters_info,
+ .get = snd_echo_vumeters_get,
+};
+
+
+
+/*** Channels info - it exports informations about the number of channels ***/
+static int snd_echo_channels_info_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct echoaudio *chip;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 6;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1 << ECHO_CLOCK_NUMBER;
+ return 0;
+}
+
+static int snd_echo_channels_info_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct echoaudio *chip;
+ int detected, clocks, bit, src;
+
+ chip = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] = num_busses_in(chip);
+ ucontrol->value.integer.value[1] = num_analog_busses_in(chip);
+ ucontrol->value.integer.value[2] = num_busses_out(chip);
+ ucontrol->value.integer.value[3] = num_analog_busses_out(chip);
+ ucontrol->value.integer.value[4] = num_pipes_out(chip);
+
+ /* Compute the bitmask of the currently valid input clocks */
+ detected = detect_input_clocks(chip);
+ clocks = 0;
+ src = chip->num_clock_sources - 1;
+ for (bit = ECHO_CLOCK_NUMBER - 1; bit >= 0; bit--)
+ if (detected & (1 << bit))
+ for (; src >= 0; src--)
+ if (bit == chip->clock_source_list[src]) {
+ clocks |= 1 << src;
+ break;
+ }
+ ucontrol->value.integer.value[5] = clocks;
+
+ return 0;
+}
+
+static struct snd_kcontrol_new snd_echo_channels_info __devinitdata = {
+ .name = "Channels info",
+ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = snd_echo_channels_info_info,
+ .get = snd_echo_channels_info_get,
+};
+
+
+
+
+/******************************************************************************
+ IRQ Handler
+******************************************************************************/
+
+static irqreturn_t snd_echo_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs)
+{
+ struct echoaudio *chip = dev_id;
+ struct snd_pcm_substream *substream;
+ int period, ss, st;
+
+ spin_lock(&chip->lock);
+ st = service_irq(chip);
+ if (st < 0) {
+ spin_unlock(&chip->lock);
+ return IRQ_NONE;
+ }
+ /* The hardware doesn't tell us which substream caused the irq,
+ thus we have to check all running substreams. */
+ for (ss = 0; ss < DSP_MAXPIPES; ss++) {
+ if ((substream = chip->substream[ss])) {
+ period = pcm_pointer(substream) /
+ substream->runtime->period_size;
+ if (period != chip->last_period[ss]) {
+ chip->last_period[ss] = period;
+ spin_unlock(&chip->lock);
+ snd_pcm_period_elapsed(substream);
+ spin_lock(&chip->lock);
+ }
+ }
+ }
+ spin_unlock(&chip->lock);
+
+#ifdef ECHOCARD_HAS_MIDI
+ if (st > 0 && chip->midi_in) {
+ snd_rawmidi_receive(chip->midi_in, chip->midi_buffer, st);
+ DE_MID(("rawmidi_iread=%d\n", st));
+ }
+#endif
+ return IRQ_HANDLED;
+}
+
+
+
+
+/******************************************************************************
+ Module construction / destruction
+******************************************************************************/
+
+static int snd_echo_free(struct echoaudio *chip)
+{
+ DE_INIT(("Stop DSP...\n"));
+ if (chip->comm_page) {
+ rest_in_peace(chip);
+ snd_dma_free_pages(&chip->commpage_dma_buf);
+ }
+ DE_INIT(("Stopped.\n"));
+
+ if (chip->irq >= 0)
+ free_irq(chip->irq, (void *)chip);
+
+ if (chip->dsp_registers)
+ iounmap(chip->dsp_registers);
+
+ if (chip->iores)
+ release_and_free_resource(chip->iores);
+
+ DE_INIT(("MMIO freed.\n"));
+
+ pci_disable_device(chip->pci);
+
+ /* release chip data */
+ kfree(chip);
+ DE_INIT(("Chip freed.\n"));
+ return 0;
+}
+
+
+
+static int snd_echo_dev_free(struct snd_device *device)
+{
+ struct echoaudio *chip = device->device_data;
+
+ DE_INIT(("snd_echo_dev_free()...\n"));
+ return snd_echo_free(chip);
+}
+
+
+
+/* <--snd_echo_probe() */
+static __devinit int snd_echo_create(struct snd_card *card,
+ struct pci_dev *pci,
+ struct echoaudio **rchip)
+{
+ struct echoaudio *chip;
+ int err;
+ size_t sz;
+ static struct snd_device_ops ops = {
+ .dev_free = snd_echo_dev_free,
+ };
+
+ *rchip = NULL;
+
+ pci_write_config_byte(pci, PCI_LATENCY_TIMER, 0xC0);
+
+ if ((err = pci_enable_device(pci)) < 0)
+ return err;
+ pci_set_master(pci);
+
+ /* allocate a chip-specific data */
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (!chip) {
+ pci_disable_device(pci);
+ return -ENOMEM;
+ }
+ DE_INIT(("chip=%p\n", chip));
+
+ spin_lock_init(&chip->lock);
+ chip->card = card;
+ chip->pci = pci;
+ chip->irq = -1;
+
+ /* PCI resource allocation */
+ chip->dsp_registers_phys = pci_resource_start(pci, 0);
+ sz = pci_resource_len(pci, 0);
+ if (sz > PAGE_SIZE)
+ sz = PAGE_SIZE; /* We map only the required part */
+
+ if ((chip->iores = request_mem_region(chip->dsp_registers_phys, sz,
+ ECHOCARD_NAME)) == NULL) {
+ snd_echo_free(chip);
+ snd_printk(KERN_ERR "cannot get memory region\n");
+ return -EBUSY;
+ }
+ chip->dsp_registers = (volatile u32 __iomem *)
+ ioremap_nocache(chip->dsp_registers_phys, sz);
+
+ if (request_irq(pci->irq, snd_echo_interrupt, IRQF_DISABLED | IRQF_SHARED,
+ ECHOCARD_NAME, (void *)chip)) {
+ snd_echo_free(chip);
+ snd_printk(KERN_ERR "cannot grab irq\n");
+ return -EBUSY;
+ }
+ chip->irq = pci->irq;
+ DE_INIT(("pci=%p irq=%d subdev=%04x Init hardware...\n",
+ chip->pci, chip->irq, chip->pci->subsystem_device));
+
+ /* Create the DSP comm page - this is the area of memory used for most
+ of the communication with the DSP, which accesses it via bus mastering */
+ if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
+ sizeof(struct comm_page),
+ &chip->commpage_dma_buf) < 0) {
+ snd_echo_free(chip);
+ snd_printk(KERN_ERR "cannot allocate the comm page\n");
+ return -ENOMEM;
+ }
+ chip->comm_page_phys = chip->commpage_dma_buf.addr;
+ chip->comm_page = (struct comm_page *)chip->commpage_dma_buf.area;
+
+ err = init_hw(chip, chip->pci->device, chip->pci->subsystem_device);
+ if (err) {
+ DE_INIT(("init_hw err=%d\n", err));
+ snd_echo_free(chip);
+ return err;
+ }
+ DE_INIT(("Card init OK\n"));
+
+ if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+ snd_echo_free(chip);
+ return err;
+ }
+ atomic_set(&chip->opencount, 0);
+ init_MUTEX(&chip->mode_mutex);
+ chip->can_set_rate = 1;
+ *rchip = chip;
+ /* Init done ! */
+ return 0;
+}
+
+
+
+/* constructor */
+static int __devinit snd_echo_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ static int dev;
+ struct snd_card *card;
+ struct echoaudio *chip;
+ char *dsp;
+ int i, err;
+
+ if (dev >= SNDRV_CARDS)
+ return -ENODEV;
+ if (!enable[dev]) {
+ dev++;
+ return -ENOENT;
+ }
+
+ DE_INIT(("Echoaudio driver starting...\n"));
+ i = 0;
+ card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+ if (card == NULL)
+ return -ENOMEM;
+
+ if ((err = snd_echo_create(card, pci, &chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ strcpy(card->driver, "Echo_" ECHOCARD_NAME);
+ strcpy(card->shortname, chip->card_name);
+
+ dsp = "56301";
+ if (pci_id->device == 0x3410)
+ dsp = "56361";
+
+ sprintf(card->longname, "%s rev.%d (DSP%s) at 0x%lx irq %i",
+ card->shortname, pci_id->subdevice & 0x000f, dsp,
+ chip->dsp_registers_phys, chip->irq);
+
+ if ((err = snd_echo_new_pcm(chip)) < 0) {
+ snd_printk(KERN_ERR "new pcm error %d\n", err);
+ snd_card_free(card);
+ return err;
+ }
+
+#ifdef ECHOCARD_HAS_MIDI
+ if (chip->has_midi) { /* Some Mia's do not have midi */
+ if ((err = snd_echo_midi_create(card, chip)) < 0) {
+ snd_printk(KERN_ERR "new midi error %d\n", err);
+ snd_card_free(card);
+ return err;
+ }
+ }
+#endif
+
+#ifdef ECHOCARD_HAS_VMIXER
+ snd_echo_vmixer.count = num_pipes_out(chip) * num_busses_out(chip);
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_line_output_gain, chip))) < 0)
+ goto ctl_error;
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_vmixer, chip))) < 0)
+ goto ctl_error;
+#else
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_pcm_output_gain, chip))) < 0)
+ goto ctl_error;
+#endif
+
+#ifdef ECHOCARD_HAS_INPUT_GAIN
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_line_input_gain, chip))) < 0)
+ goto ctl_error;
+#endif
+
+#ifdef ECHOCARD_HAS_INPUT_NOMINAL_LEVEL
+ if (!chip->hasnt_input_nominal_level)
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_intput_nominal_level, chip))) < 0)
+ goto ctl_error;
+#endif
+
+#ifdef ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_output_nominal_level, chip))) < 0)
+ goto ctl_error;
+#endif
+
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_vumeters_switch, chip))) < 0)
+ goto ctl_error;
+
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_vumeters, chip))) < 0)
+ goto ctl_error;
+
+#ifdef ECHOCARD_HAS_MONITOR
+ snd_echo_monitor_mixer.count = num_busses_in(chip) * num_busses_out(chip);
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_monitor_mixer, chip))) < 0)
+ goto ctl_error;
+#endif
+
+#ifdef ECHOCARD_HAS_DIGITAL_IN_AUTOMUTE
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_automute_switch, chip))) < 0)
+ goto ctl_error;
+#endif
+
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_channels_info, chip))) < 0)
+ goto ctl_error;
+
+#ifdef ECHOCARD_HAS_DIGITAL_MODE_SWITCH
+ /* Creates a list of available digital modes */
+ chip->num_digital_modes = 0;
+ for (i = 0; i < 6; i++)
+ if (chip->digital_modes & (1 << i))
+ chip->digital_mode_list[chip->num_digital_modes++] = i;
+
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_digital_mode_switch, chip))) < 0)
+ goto ctl_error;
+#endif /* ECHOCARD_HAS_DIGITAL_MODE_SWITCH */
+
+#ifdef ECHOCARD_HAS_EXTERNAL_CLOCK
+ /* Creates a list of available clock sources */
+ chip->num_clock_sources = 0;
+ for (i = 0; i < 10; i++)
+ if (chip->input_clock_types & (1 << i))
+ chip->clock_source_list[chip->num_clock_sources++] = i;
+
+ if (chip->num_clock_sources > 1) {
+ chip->clock_src_ctl = snd_ctl_new1(&snd_echo_clock_source_switch, chip);
+ if ((err = snd_ctl_add(chip->card, chip->clock_src_ctl)) < 0)
+ goto ctl_error;
+ }
+#endif /* ECHOCARD_HAS_EXTERNAL_CLOCK */
+
+#ifdef ECHOCARD_HAS_DIGITAL_IO
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_spdif_mode_switch, chip))) < 0)
+ goto ctl_error;
+#endif
+
+#ifdef ECHOCARD_HAS_PHANTOM_POWER
+ if (chip->has_phantom_power)
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_phantom_power_switch, chip))) < 0)
+ goto ctl_error;
+#endif
+
+ if ((err = snd_card_register(card)) < 0) {
+ snd_card_free(card);
+ goto ctl_error;
+ }
+ snd_printk(KERN_INFO "Card registered: %s\n", card->longname);
+
+ pci_set_drvdata(pci, chip);
+ dev++;
+ return 0;
+
+ctl_error:
+ snd_printk(KERN_ERR "new control error %d\n", err);
+ snd_card_free(card);
+ return err;
+}
+
+
+
+static void __devexit snd_echo_remove(struct pci_dev *pci)
+{
+ struct echoaudio *chip;
+
+ chip = pci_get_drvdata(pci);
+ if (chip)
+ snd_card_free(chip->card);
+ pci_set_drvdata(pci, NULL);
+}
+
+
+
+/******************************************************************************
+ Everything starts and ends here
+******************************************************************************/
+
+/* pci_driver definition */
+static struct pci_driver driver = {
+ .name = "Echoaudio " ECHOCARD_NAME,
+ .id_table = snd_echo_ids,
+ .probe = snd_echo_probe,
+ .remove = __devexit_p(snd_echo_remove),
+};
+
+
+
+/* initialization of the module */
+static int __init alsa_card_echo_init(void)
+{
+ return pci_register_driver(&driver);
+}
+
+
+
+/* clean up the module */
+static void __exit alsa_card_echo_exit(void)
+{
+ pci_unregister_driver(&driver);
+}
+
+
+module_init(alsa_card_echo_init)
+module_exit(alsa_card_echo_exit)
git://git.onelab.eu / linux-2.6.git / blobdiff