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Add features for automotive usecases.

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1. Add clock to metadata - If the CAR does not have a clock (no network
or bad clock) then Radio RDS could be used as a proxy.
2. Add support for emergency announcement - If the CAR wants to make an
emergency announcement.
    2.1 Add support for callbacks.

Bug: b/24807501
Bug: b/22701655

Change-Id: Ie5ada889bb6dfc4a2c1b02fc1db2d48d6899bcde
(cherry picked from commit 5768372922fbdfa47afef5bb414c69d606e7c1d2)
This commit is contained in:
Sanket Agarwal 2015-10-07 17:15:08 -07:00
parent 698dbd76b9
commit a83e0a84d5
1 changed files with 45 additions and 6 deletions
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51
modules/radio/radio_hw.c
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@ -58,6 +58,7 @@ static const radio_hal_properties_t hw_properties = {
.rds = RADIO_RDS_US,
.ta = false,
.af = false,
.ea = true,
}
},
{
@ -74,6 +75,11 @@ static const radio_hal_properties_t hw_properties = {
}
};
static const radio_metadata_clock_t hw_clock = {
.utc_seconds_since_epoch = 1234567890,
.timezone_offset_in_minutes = (-8 * 60),
};
struct stub_radio_tuner {
struct radio_tuner interface;
struct stub_radio_device *dev;
@ -103,6 +109,7 @@ typedef enum {
CMD_TUNE,
CMD_CANCEL,
CMD_METADATA,
CMD_ANNOUNCEMENTS,
} thread_cmd_type_t;
struct thread_command {
@ -215,6 +222,9 @@ static int prepare_metadata(struct stub_radio_tuner *tuner,
ret = add_bitmap_metadata(metadata, RADIO_METADATA_KEY_ICON, BITMAP_FILE_PATH);
if (ret != 0)
goto exit;
ret = radio_metadata_add_clock(metadata, RADIO_METADATA_KEY_CLOCK, &hw_clock);
if (ret != 0)
goto exit;
} else {
ret = add_bitmap_metadata(metadata, RADIO_METADATA_KEY_ART, BITMAP_FILE_PATH);
if (ret != 0)
@ -251,6 +261,10 @@ static void *callback_thread_loop(void *context)
pthread_mutex_lock(&tuner->lock);
// Fields which are used to toggle the state of traffic announcements and
// ea announcements at random. They are access protected by tuner->lock.
bool ea_state = false;
while (true) {
struct thread_command *cmd = NULL;
struct listnode *item;
@ -278,7 +292,8 @@ static void *callback_thread_loop(void *context)
cmd = node_to_item(item, struct thread_command, node);
if (got_cancel && (cmd->type == CMD_STEP || cmd->type == CMD_SCAN ||
cmd->type == CMD_TUNE || cmd->type == CMD_METADATA)) {
cmd->type == CMD_TUNE || cmd->type == CMD_METADATA ||
cmd->type == CMD_ANNOUNCEMENTS)) {
list_remove(item);
free(cmd);
continue;
@ -309,9 +324,11 @@ static void *callback_thread_loop(void *context)
__func__, tuner->config.type,
tuner->config.lower_limit, tuner->config.upper_limit);
if (tuner->config.type == RADIO_BAND_FM) {
ALOGV(" - stereo %d\n - rds %d\n - ta %d\n - af %d",
ALOGV(" - stereo %d\n - rds %d\n - ta %d\n - af %d\n"
" - ea %d\n",
tuner->config.fm.stereo, tuner->config.fm.rds,
tuner->config.fm.ta, tuner->config.fm.af);
tuner->config.fm.ta, tuner->config.fm.af,
tuner->config.fm.ea);
} else {
ALOGV(" - stereo %d", tuner->config.am.stereo);
}
@ -377,7 +394,7 @@ static void *callback_thread_loop(void *context)
if (tuner->program.tuned) {
prepare_metadata(tuner, &tuner->program.metadata, true);
send_command_l(tuner, CMD_METADATA, 5000, NULL);
send_command_l(tuner, CMD_ANNOUNCEMENTS, 1000, NULL);
} else {
if (tuner->program.metadata != NULL)
radio_metadata_deallocate(tuner->program.metadata);
@ -408,6 +425,28 @@ static void *callback_thread_loop(void *context)
got_cancel = true;
} break;
// Fire emergency announcements if they are enabled in the config. Stub
// implementation simply fires an announcement for 5 second
// duration with a gap of 5 seconds.
case CMD_ANNOUNCEMENTS: {
ALOGV("In annoucements. %d %d %d\n",
ea_state, tuner->config.type, tuner->config.fm.ea);
if (tuner->config.type == RADIO_BAND_FM ||
tuner->config.type == RADIO_BAND_FM_HD) {
if (ea_state) {
ea_state = false;
event.type = RADIO_EVENT_EA;
} else if (tuner->config.fm.ea) {
ea_state = true;
event.type = RADIO_EVENT_EA;
}
event.on = ea_state;
if (tuner->config.fm.ea) {
send_command_l(tuner, CMD_ANNOUNCEMENTS, 5000, NULL);
}
}
} break;
}
if (event.type != RADIO_EVENT_HW_FAILURE && tuner->callback != NULL) {
pthread_mutex_unlock(&tuner->lock);
@ -438,7 +477,7 @@ static void *callback_thread_loop(void *context)
free(cmd);
}
}
send_command_l(tuner, CMD_METADATA, 100, NULL);
send_command_l(tuner, CMD_METADATA, 1000, NULL);
}
}
@ -472,7 +511,7 @@ exit:
}
static int tuner_get_configuration(const struct radio_tuner *tuner,
radio_hal_band_config_t *config)
radio_hal_band_config_t *config)
{
struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
int status = 0;