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:
snd_printk(KERN_ERR "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) {
snd_printk(KERN_ERR "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) {
snd_printk(KERN_ERR "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) {
snd_printk(KERN_ERR "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) {
snd_printk(KERN_ERR "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 {
snd_printk(KERN_ERR "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;
snd_printdd("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) {
snd_printk(KERN_ERR "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;
snd_printdd("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)) {
snd_printk(KERN_ERR "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;
}
static int mixart_set_pipe_state(mixart_mgr_t *mgr, mixart_pipe_t* pipe, int start)
{
mixart_group_state_req_t group_state;
mixart_group_state_resp_t group_state_resp;
mixart_msg_t 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:
snd_printk(KERN_ERR "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 = (mixart_uid_t){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) {
snd_printk(KERN_ERR "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; /*(mixart_uid_t){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) {
snd_printk(KERN_ERR "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) {
snd_printk(KERN_ERR "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 = (mixart_uid_t){0,0};
request.data = NULL;
request.size = 0;
err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
if (err < 0 || stat != 0) {
snd_printk(KERN_ERR "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;
}
