--- /dev/null
+/*
+ * Driver for Digigram miXart soundcards
+ *
+ * main file with alsa callbacks
+ *
+ * Copyright (c) 2003 by Digigram <alsa@digigram.com>
+ *
+ * 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/info.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include "mixart.h"
+#include "mixart_hwdep.h"
+#include "mixart_core.h"
+#include "mixart_mixer.h"
+
+#define CARD_NAME "miXart"
+
+MODULE_AUTHOR("Digigram <alsa@digigram.com>");
+MODULE_DESCRIPTION("Digigram " CARD_NAME);
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
+
+/*
+ */
+
+static const struct pci_device_id snd_mixart_ids[] = {
+ { PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
+
+
+static int mixart_set_pipe_state(struct mixart_mgr *mgr,
+ struct mixart_pipe *pipe, int start)
+{
+ struct mixart_group_state_req group_state;
+ struct mixart_group_state_resp group_state_resp;
+ struct mixart_msg request;
+ int err;
+ u32 system_msg_uid;
+
+ switch(pipe->status) {
+ case PIPE_RUNNING:
+ case PIPE_CLOCK_SET:
+ if(start) return 0; /* already started */
+ break;
+ case PIPE_STOPPED:
+ if(!start) return 0; /* already stopped */
+ break;
+ default:
+ dev_err(&mgr->pci->dev,
+ "error mixart_set_pipe_state called with wrong pipe->status!\n");
+ return -EINVAL; /* function called with wrong pipe status */
+ }
+
+ system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
+
+ /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
+
+ request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
+ request.uid = (struct mixart_uid){0,0};
+ request.data = &system_msg_uid;
+ request.size = sizeof(system_msg_uid);
+
+ err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
+ if(err) {
+ dev_err(&mgr->pci->dev,
+ "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
+ return err;
+ }
+
+ /* start or stop the pipe (1 pipe) */
+
+ memset(&group_state, 0, sizeof(group_state));
+ group_state.pipe_count = 1;
+ group_state.pipe_uid[0] = pipe->group_uid;
+
+ if(start)
+ request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
+ else
+ request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
+
+ request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
+ request.data = &group_state;
+ request.size = sizeof(group_state);
+
+ err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
+ if (err < 0 || group_state_resp.txx_status != 0) {
+ dev_err(&mgr->pci->dev,
+ "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n",
+ err, group_state_resp.txx_status);
+ return -EINVAL;
+ }
+
+ if(start) {
+ u32 stat;
+
+ group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
+
+ err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
+ if (err < 0 || group_state_resp.txx_status != 0) {
+ dev_err(&mgr->pci->dev,
+ "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n",
+ err, group_state_resp.txx_status);
+ return -EINVAL;
+ }
+
+ /* in case of start send a synchro top */
+
+ request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
+ request.uid = (struct mixart_uid){0,0};
+ request.data = NULL;
+ request.size = 0;
+
+ err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
+ if (err < 0 || stat != 0) {
+ dev_err(&mgr->pci->dev,
+ "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n",
+ err, stat);
+ return -EINVAL;
+ }
+
+ pipe->status = PIPE_RUNNING;
+ }
+ else /* !start */
+ pipe->status = PIPE_STOPPED;
+
+ return 0;
+}
+
+
+static int mixart_set_clock(struct mixart_mgr *mgr,
+ struct mixart_pipe *pipe, unsigned int rate)
+{
+ struct mixart_msg request;
+ struct mixart_clock_properties clock_properties;
+ struct mixart_clock_properties_resp clock_prop_resp;
+ int err;
+
+ switch(pipe->status) {
+ case PIPE_CLOCK_SET:
+ break;
+ case PIPE_RUNNING:
+ if(rate != 0)
+ break;
+ default:
+ if(rate == 0)
+ return 0; /* nothing to do */
+ else {
+ dev_err(&mgr->pci->dev,
+ "error mixart_set_clock(%d) called with wrong pipe->status !\n",
+ rate);
+ return -EINVAL;
+ }
+ }
+
+ memset(&clock_properties, 0, sizeof(clock_properties));
+ clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
+ clock_properties.clock_mode = CM_STANDALONE;
+ clock_properties.frequency = rate;
+ clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
+ clock_properties.uid_caller[0] = pipe->group_uid;
+
+ dev_dbg(&mgr->pci->dev, "mixart_set_clock to %d kHz\n", rate);
+
+ request.message_id = MSG_CLOCK_SET_PROPERTIES;
+ request.uid = mgr->uid_console_manager;
+ request.data = &clock_properties;
+ request.size = sizeof(clock_properties);
+
+ err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
+ if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
+ dev_err(&mgr->pci->dev,
+ "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n",
+ err, clock_prop_resp.status, clock_prop_resp.clock_mode);
+ return -EINVAL;
+ }
+
+ if(rate) pipe->status = PIPE_CLOCK_SET;
+ else pipe->status = PIPE_RUNNING;
+
+ return 0;
+}
+
+
+/*
+ * Allocate or reference output pipe for analog IOs (pcmp0/1)
+ */
+struct mixart_pipe *
+snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
+ int monitoring)
+{
+ int stream_count;
+ struct mixart_pipe *pipe;
+ struct mixart_msg request;
+
+ if(capture) {
+ if (pcm_number == MIXART_PCM_ANALOG) {
+ pipe = &(chip->pipe_in_ana); /* analog inputs */
+ } else {
+ pipe = &(chip->pipe_in_dig); /* digital inputs */
+ }
+ request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
+ stream_count = MIXART_CAPTURE_STREAMS;
+ } else {
+ if (pcm_number == MIXART_PCM_ANALOG) {
+ pipe = &(chip->pipe_out_ana); /* analog outputs */
+ } else {
+ pipe = &(chip->pipe_out_dig); /* digital outputs */
+ }
+ request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
+ stream_count = MIXART_PLAYBACK_STREAMS;
+ }
+
+ /* a new stream is opened and there are already all streams in use */
+ if( (monitoring == 0) && (pipe->references >= stream_count) ) {
+ return NULL;
+ }
+
+ /* pipe is not yet defined */
+ if( pipe->status == PIPE_UNDEFINED ) {
+ int err, i;
+ struct {
+ struct mixart_streaming_group_req sgroup_req;
+ struct mixart_streaming_group sgroup_resp;
+ } *buf;
+
+ dev_dbg(chip->card->dev,
+ "add_ref_pipe audio chip(%d) pcm(%d)\n",
+ chip->chip_idx, pcm_number);
+
+ buf = kmalloc(sizeof(*buf), GFP_KERNEL);
+ if (!buf)
+ return NULL;
+
+ request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */
+ request.data = &buf->sgroup_req;
+ request.size = sizeof(buf->sgroup_req);
+
+ memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
+
+ buf->sgroup_req.stream_count = stream_count;
+ buf->sgroup_req.channel_count = 2;
+ buf->sgroup_req.latency = 256;
+ buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */
+
+ for (i=0; i<stream_count; i++) {
+ int j;
+ struct mixart_flowinfo *flowinfo;
+ struct mixart_bufferinfo *bufferinfo;
+
+ /* we don't yet know the format, so config 16 bit pcm audio for instance */
+ buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
+ buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
+ buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
+
+ /* find the right bufferinfo_array */
+ j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
+ if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
+
+ buf->sgroup_req.flow_entry[i] = j;
+
+ flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
+ flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
+ flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */
+
+ bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
+ bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */
+ bufferinfo[j].available_length = 0; /* buffer is not yet allocated */
+
+ /* construct the identifier of the stream buffer received in the interrupts ! */
+ bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
+ if(capture) {
+ bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
+ }
+ }
+
+ err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
+ if((err < 0) || (buf->sgroup_resp.status != 0)) {
+ dev_err(chip->card->dev,
+ "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n",
+ err, buf->sgroup_resp.status);
+ kfree(buf);
+ return NULL;
+ }
+
+ pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */
+ pipe->stream_count = buf->sgroup_resp.stream_count;
+ /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
+
+ pipe->status = PIPE_STOPPED;
+ kfree(buf);
+ }
+
+ if(monitoring) pipe->monitoring = 1;
+ else pipe->references++;
+
+ return pipe;
+}
+
+
+int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
+ struct mixart_pipe *pipe, int monitoring)
+{
+ int err = 0;
+
+ if(pipe->status == PIPE_UNDEFINED)
+ return 0;
+
+ if(monitoring)
+ pipe->monitoring = 0;
+ else
+ pipe->references--;
+
+ if((pipe->references <= 0) && (pipe->monitoring == 0)) {
+
+ struct mixart_msg request;
+ struct mixart_delete_group_resp delete_resp;
+
+ /* release the clock */
+ err = mixart_set_clock( mgr, pipe, 0);
+ if( err < 0 ) {
+ dev_err(&mgr->pci->dev,
+ "mixart_set_clock(0) return error!\n");
+ }
+
+ /* stop the pipe */
+ err = mixart_set_pipe_state(mgr, pipe, 0);
+ if( err < 0 ) {
+ dev_err(&mgr->pci->dev, "error stopping pipe!\n");
+ }
+
+ request.message_id = MSG_STREAM_DELETE_GROUP;
+ request.uid = (struct mixart_uid){0,0};
+ request.data = &pipe->group_uid; /* the streaming group ! */
+ request.size = sizeof(pipe->group_uid);
+
+ /* delete the pipe */
+ err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
+ if ((err < 0) || (delete_resp.status != 0)) {
+ dev_err(&mgr->pci->dev,
+ "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n",
+ err, delete_resp.status);
+ }
+
+ pipe->group_uid = (struct mixart_uid){0,0};
+ pipe->stream_count = 0;
+ pipe->status = PIPE_UNDEFINED;
+ }
+
+ return err;
+}
+
+static int mixart_set_stream_state(struct mixart_stream *stream, int start)
+{
+ struct snd_mixart *chip;
+ struct mixart_stream_state_req stream_state_req;
+ struct mixart_msg request;
+
+ if(!stream->substream)
+ return -EINVAL;
+
+ memset(&stream_state_req, 0, sizeof(stream_state_req));
+ stream_state_req.stream_count = 1;
+ stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
+ stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
+
+ if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
+ else
+ request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
+
+ request.uid = (struct mixart_uid){0,0};
+ request.data = &stream_state_req;
+ request.size = sizeof(stream_state_req);
+
+ stream->abs_period_elapsed = 0; /* reset stream pos */
+ stream->buf_periods = 0;
+ stream->buf_period_frag = 0;
+
+ chip = snd_pcm_substream_chip(stream->substream);
+
+ return snd_mixart_send_msg_nonblock(chip->mgr, &request);
+}
+
+/*
+ * Trigger callback
+ */
+
+static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
+{
+ struct mixart_stream *stream = subs->runtime->private_data;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+
+ dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_START\n");
+
+ /* START_STREAM */
+ if( mixart_set_stream_state(stream, 1) )
+ return -EINVAL;
+
+ stream->status = MIXART_STREAM_STATUS_RUNNING;
+
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+
+ /* STOP_STREAM */
+ if( mixart_set_stream_state(stream, 0) )
+ return -EINVAL;
+
+ stream->status = MIXART_STREAM_STATUS_OPEN;
+
+ dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_STOP\n");
+
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ /* TODO */
+ stream->status = MIXART_STREAM_STATUS_PAUSE;
+ dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_PUSH\n");
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ /* TODO */
+ stream->status = MIXART_STREAM_STATUS_RUNNING;
+ dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_RELEASE\n");
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
+{
+ unsigned long timeout = jiffies + HZ;
+ while (atomic_read(&mgr->msg_processed) > 0) {
+ if (time_after(jiffies, timeout)) {
+ dev_err(&mgr->pci->dev,
+ "mixart: cannot process nonblock events!\n");
+ return -EBUSY;
+ }
+ schedule_timeout_uninterruptible(1);
+ }
+ return 0;
+}
+
+/*
+ * prepare callback for all pcms
+ */
+static int snd_mixart_prepare(struct snd_pcm_substream *subs)
+{
+ struct snd_mixart *chip = snd_pcm_substream_chip(subs);
+ struct mixart_stream *stream = subs->runtime->private_data;
+
+ /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
+
+ dev_dbg(chip->card->dev, "snd_mixart_prepare\n");
+
+ mixart_sync_nonblock_events(chip->mgr);
+
+ /* only the first stream can choose the sample rate */
+ /* the further opened streams will be limited to its frequency (see open) */
+ if(chip->mgr->ref_count_rate == 1)
+ chip->mgr->sample_rate = subs->runtime->rate;
+
+ /* set the clock only once (first stream) on the same pipe */
+ if(stream->pipe->references == 1) {
+ if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+
+static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
+{
+ int err;
+ struct snd_mixart *chip;
+ struct mixart_msg request;
+ struct mixart_stream_param_desc stream_param;
+ struct mixart_return_uid resp;
+
+ chip = snd_pcm_substream_chip(stream->substream);
+
+ memset(&stream_param, 0, sizeof(stream_param));
+
+ stream_param.coding_type = CT_LINEAR;
+ stream_param.number_of_channel = stream->channels;
+
+ stream_param.sampling_freq = chip->mgr->sample_rate;
+ if(stream_param.sampling_freq == 0)
+ stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
+
+ switch(format){
+ case SNDRV_PCM_FORMAT_U8:
+ stream_param.sample_type = ST_INTEGER_8;
+ stream_param.sample_size = 8;
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ stream_param.sample_type = ST_INTEGER_16LE;
+ stream_param.sample_size = 16;
+ break;
+ case SNDRV_PCM_FORMAT_S16_BE:
+ stream_param.sample_type = ST_INTEGER_16BE;
+ stream_param.sample_size = 16;
+ break;
+ case SNDRV_PCM_FORMAT_S24_3LE:
+ stream_param.sample_type = ST_INTEGER_24LE;
+ stream_param.sample_size = 24;
+ break;
+ case SNDRV_PCM_FORMAT_S24_3BE:
+ stream_param.sample_type = ST_INTEGER_24BE;
+ stream_param.sample_size = 24;
+ break;
+ case SNDRV_PCM_FORMAT_FLOAT_LE:
+ stream_param.sample_type = ST_FLOATING_POINT_32LE;
+ stream_param.sample_size = 32;
+ break;
+ case SNDRV_PCM_FORMAT_FLOAT_BE:
+ stream_param.sample_type = ST_FLOATING_POINT_32BE;
+ stream_param.sample_size = 32;
+ break;
+ default:
+ dev_err(chip->card->dev,
+ "error mixart_set_format() : unknown format\n");
+ return -EINVAL;
+ }
+
+ dev_dbg(chip->card->dev,
+ "set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
+ stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
+
+ /* TODO: what else to configure ? */
+ /* stream_param.samples_per_frame = 2; */
+ /* stream_param.bytes_per_frame = 4; */
+ /* stream_param.bytes_per_sample = 2; */
+
+ stream_param.pipe_count = 1; /* set to 1 */
+ stream_param.stream_count = 1; /* set to 1 */
+ stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
+ stream_param.stream_desc[0].stream_idx = stream->substream->number;
+
+ request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
+ request.uid = (struct mixart_uid){0,0};
+ request.data = &stream_param;
+ request.size = sizeof(stream_param);
+
+ err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
+ if((err < 0) || resp.error_code) {
+ dev_err(chip->card->dev,
+ "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n",
+ err, resp.error_code);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+
+/*
+ * HW_PARAMS callback for all pcms
+ */
+static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
+ struct snd_pcm_hw_params *hw)
+{
+ struct snd_mixart *chip = snd_pcm_substream_chip(subs);
+ struct mixart_mgr *mgr = chip->mgr;
+ struct mixart_stream *stream = subs->runtime->private_data;
+ snd_pcm_format_t format;
+ int err;
+ int channels;
+
+ /* set up channels */
+ channels = params_channels(hw);
+
+ /* set up format for the stream */
+ format = params_format(hw);
+
+ mutex_lock(&mgr->setup_mutex);
+
+ /* update the stream levels */
+ if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
+ int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
+ if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
+ mixart_update_playback_stream_level(chip, is_aes, subs->number);
+ else
+ mixart_update_capture_stream_level( chip, is_aes);
+ }
+
+ stream->channels = channels;
+
+ /* set the format to the board */
+ err = mixart_set_format(stream, format);
+ if(err < 0) {
+ mutex_unlock(&mgr->setup_mutex);
+ return err;
+ }
+
+ /* allocate buffer */
+ err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
+
+ if (err > 0) {
+ struct mixart_bufferinfo *bufferinfo;
+ int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
+ if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
+ i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
+ }
+
+ bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
+ bufferinfo[i].buffer_address = subs->runtime->dma_addr;
+ bufferinfo[i].available_length = subs->runtime->dma_bytes;
+ /* bufferinfo[i].buffer_id is already defined */
+
+ dev_dbg(chip->card->dev,
+ "snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n",
+ i, bufferinfo[i].buffer_address,
+ bufferinfo[i].available_length,
+ subs->number);
+ }
+ mutex_unlock(&mgr->setup_mutex);
+
+ return err;
+}
+
+static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
+{
+ struct snd_mixart *chip = snd_pcm_substream_chip(subs);
+ snd_pcm_lib_free_pages(subs);
+ mixart_sync_nonblock_events(chip->mgr);
+ return 0;
+}
+
+
+
+/*
+ * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
+ */
+static struct snd_pcm_hardware snd_mixart_analog_caps =
+{
+ .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE),
+ .formats = ( SNDRV_PCM_FMTBIT_U8 |
+ SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
+ SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
+ SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
+ .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+ .rate_min = 8000,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = (32*1024),
+ .period_bytes_min = 256, /* 256 frames U8 mono*/
+ .period_bytes_max = (16*1024),
+ .periods_min = 2,
+ .periods_max = (32*1024/256),
+};
+
+static struct snd_pcm_hardware snd_mixart_digital_caps =
+{
+ .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE),
+ .formats = ( SNDRV_PCM_FMTBIT_U8 |
+ SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
+ SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
+ SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
+ .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
+ .rate_min = 32000,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = (32*1024),
+ .period_bytes_min = 256, /* 256 frames U8 mono*/
+ .period_bytes_max = (16*1024),
+ .periods_min = 2,
+ .periods_max = (32*1024/256),
+};
+
+
+static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
+{
+ struct snd_mixart *chip = snd_pcm_substream_chip(subs);
+ struct mixart_mgr *mgr = chip->mgr;
+ struct snd_pcm_runtime *runtime = subs->runtime;
+ struct snd_pcm *pcm = subs->pcm;
+ struct mixart_stream *stream;
+ struct mixart_pipe *pipe;
+ int err = 0;
+ int pcm_number;
+
+ mutex_lock(&mgr->setup_mutex);
+
+ if ( pcm == chip->pcm ) {
+ pcm_number = MIXART_PCM_ANALOG;
+ runtime->hw = snd_mixart_analog_caps;
+ } else {
+ snd_BUG_ON(pcm != chip->pcm_dig);
+ pcm_number = MIXART_PCM_DIGITAL;
+ runtime->hw = snd_mixart_digital_caps;
+ }
+ dev_dbg(chip->card->dev,
+ "snd_mixart_playback_open C%d/P%d/Sub%d\n",
+ chip->chip_idx, pcm_number, subs->number);
+
+ /* get stream info */
+ stream = &(chip->playback_stream[pcm_number][subs->number]);
+
+ if (stream->status != MIXART_STREAM_STATUS_FREE){
+ /* streams in use */
+ dev_err(chip->card->dev,
+ "snd_mixart_playback_open C%d/P%d/Sub%d in use\n",
+ chip->chip_idx, pcm_number, subs->number);
+ err = -EBUSY;
+ goto _exit_open;
+ }
+
+ /* get pipe pointer (out pipe) */
+ pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
+
+ if (pipe == NULL) {
+ err = -EINVAL;
+ goto _exit_open;
+ }
+
+ /* start the pipe if necessary */
+ err = mixart_set_pipe_state(chip->mgr, pipe, 1);
+ if( err < 0 ) {
+ dev_err(chip->card->dev, "error starting pipe!\n");
+ snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
+ err = -EINVAL;
+ goto _exit_open;
+ }
+
+ stream->pipe = pipe;
+ stream->pcm_number = pcm_number;
+ stream->status = MIXART_STREAM_STATUS_OPEN;
+ stream->substream = subs;
+ stream->channels = 0; /* not configured yet */
+
+ runtime->private_data = stream;
+
+ snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
+ snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
+
+ /* if a sample rate is already used, another stream cannot change */
+ if(mgr->ref_count_rate++) {
+ if(mgr->sample_rate) {
+ runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
+ }
+ }
+
+ _exit_open:
+ mutex_unlock(&mgr->setup_mutex);
+
+ return err;
+}
+
+
+static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
+{
+ struct snd_mixart *chip = snd_pcm_substream_chip(subs);
+ struct mixart_mgr *mgr = chip->mgr;
+ struct snd_pcm_runtime *runtime = subs->runtime;
+ struct snd_pcm *pcm = subs->pcm;
+ struct mixart_stream *stream;
+ struct mixart_pipe *pipe;
+ int err = 0;
+ int pcm_number;
+
+ mutex_lock(&mgr->setup_mutex);
+
+ if ( pcm == chip->pcm ) {
+ pcm_number = MIXART_PCM_ANALOG;
+ runtime->hw = snd_mixart_analog_caps;
+ } else {
+ snd_BUG_ON(pcm != chip->pcm_dig);
+ pcm_number = MIXART_PCM_DIGITAL;
+ runtime->hw = snd_mixart_digital_caps;
+ }
+
+ runtime->hw.channels_min = 2; /* for instance, no mono */
+
+ dev_dbg(chip->card->dev, "snd_mixart_capture_open C%d/P%d/Sub%d\n",
+ chip->chip_idx, pcm_number, subs->number);
+
+ /* get stream info */
+ stream = &(chip->capture_stream[pcm_number]);
+
+ if (stream->status != MIXART_STREAM_STATUS_FREE){
+ /* streams in use */
+ dev_err(chip->card->dev,
+ "snd_mixart_capture_open C%d/P%d/Sub%d in use\n",
+ chip->chip_idx, pcm_number, subs->number);
+ err = -EBUSY;
+ goto _exit_open;
+ }
+
+ /* get pipe pointer (in pipe) */
+ pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
+
+ if (pipe == NULL) {
+ err = -EINVAL;
+ goto _exit_open;
+ }
+
+ /* start the pipe if necessary */
+ err = mixart_set_pipe_state(chip->mgr, pipe, 1);
+ if( err < 0 ) {
+ dev_err(chip->card->dev, "error starting pipe!\n");
+ snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
+ err = -EINVAL;
+ goto _exit_open;
+ }
+
+ stream->pipe = pipe;
+ stream->pcm_number = pcm_number;
+ stream->status = MIXART_STREAM_STATUS_OPEN;
+ stream->substream = subs;
+ stream->channels = 0; /* not configured yet */
+
+ runtime->private_data = stream;
+
+ snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
+ snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
+
+ /* if a sample rate is already used, another stream cannot change */
+ if(mgr->ref_count_rate++) {
+ if(mgr->sample_rate) {
+ runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
+ }
+ }
+
+ _exit_open:
+ mutex_unlock(&mgr->setup_mutex);
+
+ return err;
+}
+
+
+
+static int snd_mixart_close(struct snd_pcm_substream *subs)
+{
+ struct snd_mixart *chip = snd_pcm_substream_chip(subs);
+ struct mixart_mgr *mgr = chip->mgr;
+ struct mixart_stream *stream = subs->runtime->private_data;
+
+ mutex_lock(&mgr->setup_mutex);
+
+ dev_dbg(chip->card->dev, "snd_mixart_close C%d/P%d/Sub%d\n",
+ chip->chip_idx, stream->pcm_number, subs->number);
+
+ /* sample rate released */
+ if(--mgr->ref_count_rate == 0) {
+ mgr->sample_rate = 0;
+ }
+
+ /* delete pipe */
+ if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
+
+ dev_err(chip->card->dev,
+ "error snd_mixart_kill_ref_pipe C%dP%d\n",
+ chip->chip_idx, stream->pcm_number);
+ }
+
+ stream->pipe = NULL;
+ stream->status = MIXART_STREAM_STATUS_FREE;
+ stream->substream = NULL;
+
+ mutex_unlock(&mgr->setup_mutex);
+ return 0;
+}
+
+
+static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
+{
+ struct snd_pcm_runtime *runtime = subs->runtime;
+ struct mixart_stream *stream = runtime->private_data;
+
+ return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
+}
+
+
+
+static struct snd_pcm_ops snd_mixart_playback_ops = {
+ .open = snd_mixart_playback_open,
+ .close = snd_mixart_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .prepare = snd_mixart_prepare,
+ .hw_params = snd_mixart_hw_params,
+ .hw_free = snd_mixart_hw_free,
+ .trigger = snd_mixart_trigger,
+ .pointer = snd_mixart_stream_pointer,
+};
+
+static struct snd_pcm_ops snd_mixart_capture_ops = {
+ .open = snd_mixart_capture_open,
+ .close = snd_mixart_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .prepare = snd_mixart_prepare,
+ .hw_params = snd_mixart_hw_params,
+ .hw_free = snd_mixart_hw_free,
+ .trigger = snd_mixart_trigger,
+ .pointer = snd_mixart_stream_pointer,
+};
+
+static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
+{
+#if 0
+ struct snd_pcm_substream *subs;
+ int stream;
+
+ for (stream = 0; stream < 2; stream++) {
+ int idx = 0;
+ for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
+ /* set up the unique device id with the chip index */
+ subs->dma_device.id = subs->pcm->device << 16 |
+ subs->stream << 8 | (subs->number + 1) |
+ (chip->chip_idx + 1) << 24;
+ }
+#endif
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024);
+}
+
+/*
+ */
+static int snd_mixart_pcm_analog(struct snd_mixart *chip)
+{
+ int err;
+ struct snd_pcm *pcm;
+ char name[32];
+
+ sprintf(name, "miXart analog %d", chip->chip_idx);
+ if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
+ MIXART_PLAYBACK_STREAMS,
+ MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
+ dev_err(chip->card->dev,
+ "cannot create the analog pcm %d\n", chip->chip_idx);
+ return err;
+ }
+
+ pcm->private_data = chip;
+
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
+
+ pcm->info_flags = 0;
+ pcm->nonatomic = true;
+ strcpy(pcm->name, name);
+
+ preallocate_buffers(chip, pcm);
+
+ chip->pcm = pcm;
+ return 0;
+}
+
+
+/*
+ */
+static int snd_mixart_pcm_digital(struct snd_mixart *chip)
+{
+ int err;
+ struct snd_pcm *pcm;
+ char name[32];
+
+ sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
+ if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
+ MIXART_PLAYBACK_STREAMS,
+ MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
+ dev_err(chip->card->dev,
+ "cannot create the digital pcm %d\n", chip->chip_idx);
+ return err;
+ }
+
+ pcm->private_data = chip;
+
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
+
+ pcm->info_flags = 0;
+ pcm->nonatomic = true;
+ strcpy(pcm->name, name);
+
+ preallocate_buffers(chip, pcm);
+
+ chip->pcm_dig = pcm;
+ return 0;
+}
+
+static int snd_mixart_chip_free(struct snd_mixart *chip)
+{
+ kfree(chip);
+ return 0;
+}
+
+static int snd_mixart_chip_dev_free(struct snd_device *device)
+{
+ struct snd_mixart *chip = device->device_data;
+ return snd_mixart_chip_free(chip);
+}
+
+
+/*
+ */
+static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
+{
+ int err;
+ struct snd_mixart *chip;
+ static struct snd_device_ops ops = {
+ .dev_free = snd_mixart_chip_dev_free,
+ };
+
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (! chip) {
+ dev_err(card->dev, "cannot allocate chip\n");
+ return -ENOMEM;
+ }
+
+ chip->card = card;
+ chip->chip_idx = idx;
+ chip->mgr = mgr;
+
+ if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+ snd_mixart_chip_free(chip);
+ return err;
+ }
+
+ mgr->chip[idx] = chip;
+ return 0;
+}
+
+int snd_mixart_create_pcm(struct snd_mixart* chip)
+{
+ int err;
+
+ err = snd_mixart_pcm_analog(chip);
+ if (err < 0)
+ return err;
+
+ if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
+
+ err = snd_mixart_pcm_digital(chip);
+ if (err < 0)
+ return err;
+ }
+ return err;
+}
+
+
+/*
+ * release all the cards assigned to a manager instance
+ */
+static int snd_mixart_free(struct mixart_mgr *mgr)
+{
+ unsigned int i;
+
+ for (i = 0; i < mgr->num_cards; i++) {
+ if (mgr->chip[i])
+ snd_card_free(mgr->chip[i]->card);
+ }
+
+ /* stop mailbox */
+ snd_mixart_exit_mailbox(mgr);
+
+ /* release irq */
+ if (mgr->irq >= 0)
+ free_irq(mgr->irq, mgr);
+
+ /* reset board if some firmware was loaded */
+ if(mgr->dsp_loaded) {
+ snd_mixart_reset_board(mgr);
+ dev_dbg(&mgr->pci->dev, "reset miXart !\n");
+ }
+
+ /* release the i/o ports */
+ for (i = 0; i < 2; ++i)
+ iounmap(mgr->mem[i].virt);
+
+ pci_release_regions(mgr->pci);
+
+ /* free flowarray */
+ if(mgr->flowinfo.area) {
+ snd_dma_free_pages(&mgr->flowinfo);
+ mgr->flowinfo.area = NULL;
+ }
+ /* free bufferarray */
+ if(mgr->bufferinfo.area) {
+ snd_dma_free_pages(&mgr->bufferinfo);
+ mgr->bufferinfo.area = NULL;
+ }
+
+ pci_disable_device(mgr->pci);
+ kfree(mgr);
+ return 0;
+}
+
+/*
+ * proc interface
+ */
+
+/*
+ mixart_BA0 proc interface for BAR 0 - read callback
+ */
+static ssize_t snd_mixart_BA0_read(struct snd_info_entry *entry,
+ void *file_private_data,
+ struct file *file, char __user *buf,
+ size_t count, loff_t pos)
+{
+ struct mixart_mgr *mgr = entry->private_data;
+
+ count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
+ if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count))
+ return -EFAULT;
+ return count;
+}
+
+/*
+ mixart_BA1 proc interface for BAR 1 - read callback
+ */
+static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry,
+ void *file_private_data,
+ struct file *file, char __user *buf,
+ size_t count, loff_t pos)
+{
+ struct mixart_mgr *mgr = entry->private_data;
+
+ count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
+ if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count))
+ return -EFAULT;
+ return count;
+}
+
+static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
+ .read = snd_mixart_BA0_read,
+};
+
+static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
+ .read = snd_mixart_BA1_read,
+};
+
+
+static void snd_mixart_proc_read(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_mixart *chip = entry->private_data;
+ u32 ref;
+
+ snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
+
+ /* stats available when embedded OS is running */
+ if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
+ snd_iprintf(buffer, "- hardware -\n");
+ switch (chip->mgr->board_type ) {
+ case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
+ case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
+ case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
+ default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
+ }
+
+ snd_iprintf(buffer, "- system load -\n");
+
+ /* get perf reference */
+
+ ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
+
+ if (ref) {
+ u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
+ u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
+ u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
+
+ snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
+ snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
+ snd_iprintf(buffer, "\tinterrupts handling : %d\n\n", interr);
+ }
+ } /* endif elf loaded */
+}
+
+static void snd_mixart_proc_init(struct snd_mixart *chip)
+{
+ struct snd_info_entry *entry;
+
+ /* text interface to read perf and temp meters */
+ if (! snd_card_proc_new(chip->card, "board_info", &entry)) {
+ entry->private_data = chip;
+ entry->c.text.read = snd_mixart_proc_read;
+ }
+
+ if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
+ entry->content = SNDRV_INFO_CONTENT_DATA;
+ entry->private_data = chip->mgr;
+ entry->c.ops = &snd_mixart_proc_ops_BA0;
+ entry->size = MIXART_BA0_SIZE;
+ }
+ if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
+ entry->content = SNDRV_INFO_CONTENT_DATA;
+ entry->private_data = chip->mgr;
+ entry->c.ops = &snd_mixart_proc_ops_BA1;
+ entry->size = MIXART_BA1_SIZE;
+ }
+}
+/* end of proc interface */
+
+
+/*
+ * probe function - creates the card manager
+ */
+static int snd_mixart_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ static int dev;
+ struct mixart_mgr *mgr;
+ unsigned int i;
+ int err;
+ size_t size;
+
+ /*
+ */
+ if (dev >= SNDRV_CARDS)
+ return -ENODEV;
+ if (! enable[dev]) {
+ dev++;
+ return -ENOENT;
+ }
+
+ /* enable PCI device */
+ if ((err = pci_enable_device(pci)) < 0)
+ return err;
+ pci_set_master(pci);
+
+ /* check if we can restrict PCI DMA transfers to 32 bits */
+ if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
+ dev_err(&pci->dev,
+ "architecture does not support 32bit PCI busmaster DMA\n");
+ pci_disable_device(pci);
+ return -ENXIO;
+ }
+
+ /*
+ */
+ mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
+ if (! mgr) {
+ pci_disable_device(pci);
+ return -ENOMEM;
+ }
+
+ mgr->pci = pci;
+ mgr->irq = -1;
+
+ /* resource assignment */
+ if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
+ kfree(mgr);
+ pci_disable_device(pci);
+ return err;
+ }
+ for (i = 0; i < 2; i++) {
+ mgr->mem[i].phys = pci_resource_start(pci, i);
+ mgr->mem[i].virt = pci_ioremap_bar(pci, i);
+ if (!mgr->mem[i].virt) {
+ dev_err(&pci->dev, "unable to remap resource 0x%lx\n",
+ mgr->mem[i].phys);
+ snd_mixart_free(mgr);
+ return -EBUSY;
+ }
+ }
+
+ if (request_threaded_irq(pci->irq, snd_mixart_interrupt,
+ snd_mixart_threaded_irq, IRQF_SHARED,
+ KBUILD_MODNAME, mgr)) {
+ dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
+ snd_mixart_free(mgr);
+ return -EBUSY;
+ }
+ mgr->irq = pci->irq;
+
+ sprintf(mgr->shortname, "Digigram miXart");
+ sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq);
+
+ /* init mailbox */
+ mgr->msg_fifo_readptr = 0;
+ mgr->msg_fifo_writeptr = 0;
+
+ mutex_init(&mgr->lock);
+ mutex_init(&mgr->msg_lock);
+ init_waitqueue_head(&mgr->msg_sleep);
+ atomic_set(&mgr->msg_processed, 0);
+
+ /* init setup mutex*/
+ mutex_init(&mgr->setup_mutex);
+
+ /* card assignment */
+ mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
+ for (i = 0; i < mgr->num_cards; i++) {
+ struct snd_card *card;
+ char tmpid[16];
+ int idx;
+
+ if (index[dev] < 0)
+ idx = index[dev];
+ else
+ idx = index[dev] + i;
+ snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
+ err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
+ 0, &card);
+
+ if (err < 0) {
+ dev_err(&pci->dev, "cannot allocate the card %d\n", i);
+ snd_mixart_free(mgr);
+ return err;
+ }
+
+ strcpy(card->driver, CARD_NAME);
+ sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
+ sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
+
+ if ((err = snd_mixart_create(mgr, card, i)) < 0) {
+ snd_card_free(card);
+ snd_mixart_free(mgr);
+ return err;
+ }
+
+ if(i==0) {
+ /* init proc interface only for chip0 */
+ snd_mixart_proc_init(mgr->chip[i]);
+ }
+
+ if ((err = snd_card_register(card)) < 0) {
+ snd_mixart_free(mgr);
+ return err;
+ }
+ }
+
+ /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
+ mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
+
+ /* create array of streaminfo */
+ size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
+ sizeof(struct mixart_flowinfo)) );
+ if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
+ size, &mgr->flowinfo) < 0) {
+ snd_mixart_free(mgr);
+ return -ENOMEM;
+ }
+ /* init streaminfo_array */
+ memset(mgr->flowinfo.area, 0, size);
+
+ /* create array of bufferinfo */
+ size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
+ sizeof(struct mixart_bufferinfo)) );
+ if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
+ size, &mgr->bufferinfo) < 0) {
+ snd_mixart_free(mgr);
+ return -ENOMEM;
+ }
+ /* init bufferinfo_array */
+ memset(mgr->bufferinfo.area, 0, size);
+
+ /* set up firmware */
+ err = snd_mixart_setup_firmware(mgr);
+ if (err < 0) {
+ snd_mixart_free(mgr);
+ return err;
+ }
+
+ pci_set_drvdata(pci, mgr);
+ dev++;
+ return 0;
+}
+
+static void snd_mixart_remove(struct pci_dev *pci)
+{
+ snd_mixart_free(pci_get_drvdata(pci));
+}
+
+static struct pci_driver mixart_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = snd_mixart_ids,
+ .probe = snd_mixart_probe,
+ .remove = snd_mixart_remove,
+};
+
+module_pci_driver(mixart_driver);
Code Review / kvmfornfv.git / blobdiff