uint32_t hdmi_out_get_sample_rate(const struct audio_stream *stream)
{
hdmi_out_t *out = (hdmi_out_t*)stream;
struct pcm_config *config = &out->config;
TRACEM("stream=%p returning %d", stream, config->rate);
return config->rate;
}
static int hdmi_adev_set_parameters(audio_hw_device_t *dev, const char *kv_pairs)
{
TRACEM("dev=%p kv_pairss='%s'", dev, kv_pairs);
struct str_parms *params;
char *str;
char value[HDMI_MAX_CHANNELS];
int ret, x, val, numMatch = 0;
struct hdmi_device_t *adev = (struct hdmi_device_t *)dev;
params = str_parms_create_str(kv_pairs);
//Handle maximum of 8 channels
ret = str_parms_get_str(params, "channel_map", value, HDMI_MAX_CHANNELS);
if (ret >= 0) {
val = strtol(value, NULL, 10);
for(x = 0; x < HDMI_MAX_CHANNELS; x++) {
adev->map[x] = (val & (0xF << x*4)) >> x*4;
if (adev->map[x] == cea_channel_map[x])
numMatch += 1;
}
if (numMatch >= 5)
adev->CEAMap = true;
else
adev->CEAMap = false;
}
static int hdmi_out_open_pcm(hdmi_out_t *out)
{
int card = hdmi_out_find_card();
int dev = HDMI_PCM_DEV;
int ret;
TRACEM("out=%p", out);
/* out->up must be 0 (down) */
if (out->up) {
ALOGE("Trying to open a PCM that's already up. "
"This will probably deadlock... so aborting");
return 0;
}
out->pcm = pcm_open(card, dev, PCM_OUT, &out->config);
if(out->pcm && pcm_is_ready(out->pcm)) {
out->up = 1;
ret = 0;
} else {
ALOGE("cannot open HDMI pcm card %d dev %d error: %s",
card, dev, pcm_get_error(out->pcm));
pcm_close(out->pcm);
out->pcm = 0;
out->up = 0;
ret = 1;
}
return ret;
}
/* returns milliseconds */
uint32_t hdmi_out_get_latency(const struct audio_stream_out *stream)
{
uint32_t latency;
hdmi_out_t *out = (hdmi_out_t*)stream;
struct pcm_config *config = &out->config;
TRACEM("stream=%p", stream);
return (1000 * config->period_size * config->period_count) / config->rate;
}
local void walktree(nodeptr *aptr, nodeptr *nptr, cellptr cptr, cellptr bptr,
nodeptr p, real psize, vector pmid)
{
nodeptr *np, *ap, q;
int actsafe;
matrix trQM;
if (Update(p)) { // new forces needed in node?
np = nptr; // start new active list
actsafe = actmax - NSUB; // leave room for NSUB more
for (ap = aptr; ap < nptr; ap++) { // loop over active nodes
if (Type(*ap) == CELL) { // is this node a cell?
if (accept(*ap, psize, pmid)) { // does it pass the test?
if (Mass(*ap) > 0.0) { // and contribute to field?
Mass(cptr) = Mass(*ap); // copy to interaction list
SETV(Pos(cptr), Pos(*ap));
#if defined(SOFTCORR)
TRACEM(Trace(cptr), Quad(*ap)); // save trace in copy
SETMI(trQM);
MULMS(trQM, trQM, Trace(cptr)/3);
SUBM(Quad(cptr), Quad(*ap), trQM); // store traceless moment
#else
SETM(Quad(cptr), Quad(*ap)); // copy traceless moment
#endif
cptr++; // and bump cell array ptr
}
} else { // this cell fails the test
if (np - active >= actsafe) // make sure list has room
fatal("%s.walktree: active list overflow\n", getprog());
for (q = More(*ap); q != Next(*ap); q = Next(q))
// loop over all subcells
*np++= q; // put them on active list
}
} else // else this node is a body
if (*ap != p && Mass(*ap) > 0.0) { // not self-interaction?
--bptr; // bump body array ptr
Mass(bptr) = Mass(*ap); // and copy data to array
SETV(Pos(bptr), Pos(*ap));
}
}
acttot = MAX(acttot, np - active); // keep track of max active
if (np != nptr) { // if new actives were added
walksub(nptr, np, cptr, bptr, p, psize, pmid);
// then visit next level
} else { // else no actives left
if (Type(p) != BODY) // make sure we got a body
fatal("%s.walktree: recursion terminated with cell\n"
" p = 0x%x psize = %.8f Mass(p) = %g\n"
" pmid = (%.8f,%.8f,%.8f)\n Pos(p) = (%.8f,%.8f,%.8f)\n",
getprog(), (int) p, psize, Mass(p),
pmid[0], pmid[1], pmid[2], Pos(p)[0], Pos(p)[1], Pos(p)[2]);
gravsum((bodyptr) p, cptr, bptr); // sum force on this body
}
}
}
/* Returns bytes for ONE PERIOD */
size_t hdmi_out_get_buffer_size(const struct audio_stream *stream)
{
hdmi_out_t *out = (hdmi_out_t*)stream;
struct pcm_config *config = &out->config;
size_t ans;
ans = audio_stream_frame_size((struct audio_stream*)stream) * config->period_size;
TRACEM("stream=%p returning %u", stream, ans);
return ans;
}
int hdmi_out_standby(struct audio_stream *stream)
{
hdmi_out_t *out = (hdmi_out_t*)stream;
TRACEM("stream=%p", stream);
if (out->up && out->pcm) {
out->up = 0;
pcm_close(out->pcm);
out->pcm = 0;
}
return 0;
}
ssize_t hdmi_out_write(struct audio_stream_out *stream, const void* buffer,
size_t bytes)
{
hdmi_out_t *out = (hdmi_out_t*)stream;
struct hdmi_device_t *adev = (struct hdmi_device_t *)out->dev;
ssize_t ret;
TRACEM("stream=%p buffer=%p bytes=%d", stream, buffer, bytes);
if (!out->up) {
if(hdmi_out_open_pcm(out)) {
ret = -ENOSYS;
goto exit;
}
}
if (out->config.channels > 2 && !adev->CEAMap){
channel_remap(stream, buffer, bytes);
ret = pcm_write(out->pcm, out->buffcpy, bytes);
} else {
ret = pcm_write(out->pcm, buffer, bytes);
}
exit:
if (ret != 0) {
ALOGE("Error writing to HDMI pcm: %s", pcm_get_error(out->pcm));
hdmi_out_standby((struct audio_stream*)stream);
unsigned int usecs = bytes * 1000000 /
audio_stream_frame_size((struct audio_stream*)stream) /
hdmi_out_get_sample_rate((struct audio_stream*)stream);
if (usecs >= 1000000L) {
usecs = 999999L;
}
usleep(usecs);
}
return bytes;
}
char * hdmi_out_get_parameters(const struct audio_stream *stream,
const char *keys)
{
struct str_parms *query = str_parms_create_str(keys);
char *str;
char value[256];
struct str_parms *reply = str_parms_create();
int status;
hdmi_audio_caps_t caps;
TRACEM("stream=%p keys='%s'", stream, keys);
if (hdmi_query_audio_caps(HDMI_EDID_PATH, &caps)) {
ALOGE("Unable to get the HDMI audio capabilities");
str = calloc(1, 1);
goto end;
}
status = str_parms_get_str(query, AUDIO_PARAMETER_STREAM_SUP_CHANNELS,
value, sizeof(value));
if (status >= 0) {
unsigned sa = caps.speaker_alloc;
bool first = true;
/* STEREO is intentionally skipped. This code is only
* executed for the 'DIRECT' interface, and we don't
* want stereo on a DIRECT thread.
*/
value[0] = '\0';
if (SUPPORTS_ARR(sa, MASK_CEA_QUAD)) {
if (!first) {
strcat(value, "|");
}
first = false;
strcat(value, "AUDIO_CHANNEL_OUT_QUAD");
}
if (SUPPORTS_ARR(sa, MASK_CEA_SURROUND)) {
if (!first) {
strcat(value, "|");
}
first = false;
strcat(value, "AUDIO_CHANNEL_OUT_SURROUND");
}
if (SUPPORTS_ARR(sa, MASK_CEA_5POINT1)) {
if (!first) {
strcat(value, "|");
}
first = false;
strcat(value, "AUDIO_CHANNEL_OUT_5POINT1");
}
if (SUPPORTS_ARR(sa, MASK_CEA_7POINT1)) {
if (!first) {
strcat(value, "|");
}
first = false;
strcat(value, "AUDIO_CHANNEL_OUT_7POINT1");
}
str_parms_add_str(reply, AUDIO_PARAMETER_STREAM_SUP_CHANNELS, value);
str = strdup(str_parms_to_str(reply));
} else {
str = strdup(keys);
}
ALOGV("%s() reply: '%s'", __func__, str);
end:
str_parms_destroy(query);
str_parms_destroy(reply);
return str;
}
int hdmi_out_set_parameters(struct audio_stream *stream, const char *kv_pairs)
{
TRACEM("stream=%p kv_pairs='%s'", stream, kv_pairs);
return 0;
}
audio_devices_t hdmi_out_get_device(const struct audio_stream *stream)
{
TRACEM("stream=%p", stream);
return AUDIO_DEVICE_OUT_AUX_DIGITAL;
}
audio_format_t hdmi_out_get_format(const struct audio_stream *stream)
{
hdmi_out_t *out = (hdmi_out_t*)stream;
TRACEM("stream=%p returning %x", stream, out->android_config.format);
return out->android_config.format;
}
audio_channel_mask_t hdmi_out_get_channels(const struct audio_stream *stream)
{
hdmi_out_t *out = (hdmi_out_t*)stream;
TRACEM("stream=%p returning %x", stream, out->android_config.channel_mask);
return out->android_config.channel_mask;
}