/**
* hp3a_stream_on - Perform stream on specific tasks.
*
* No return value.
**/
void hp3a_stream_on(void)
{
g_tc.frame_count = 0;
memset(&g_tc.sensor_current, 0, sizeof(struct hp3a_sensor_param));
memset(&g_tc.sensor_requested, 0, sizeof(struct hp3a_sensor_param));
memset(&g_tc.sensor_stats, 0, sizeof(struct hp3a_sensor_param));
hp3a_flush_queue_irqsave(&g_tc.ready_stats_queue);
hp3a_flush_queue_irqsave(&g_tc.hist_hw_queue);
g_tc.raw_cap_sched_count = 0;
g_tc.v4l2_streaming = 1;
hp3a_enable_histogram();
hp3a_update_hardpipe();
}
/**
* hp3a_update_framework- execute tasks between frames.
*
* No return value.
**/
void hp3a_update_stats_readout_done(void)
{
int i;
bool allow_exp_update = true;
bool allow_gain_update = true;
struct hp3a_internal_buffer *ibuffer;
struct hp3a_sensor_param_internal sensor_param;
if (unlikely(g_tc.v4l2_streaming == 0)) {
hp3a_disable_histogram();
hp3a_disable_af();
return;
}
/* Reuse stats buffers. */
if (g_tc.histogram_buffer != NULL) {
g_tc.hist_done = 0;
hp3a_enqueue(&g_tc.hist_stat_queue,
&g_tc.histogram_buffer);
g_tc.histogram_buffer = NULL;
}
if (g_tc.af_buffer != NULL) {
hp3a_enqueue(&g_tc.af_stat_queue,
&g_tc.af_buffer);
g_tc.af_buffer = NULL;
}
if (g_tc.raw_buffer != NULL) {
hp3a_enqueue(&g_tc.raw_frame_queue,
&g_tc.raw_buffer);
g_tc.raw_buffer = NULL;
}
/* Process ready stats. */
for (i = MAX_STAT_BUFFERS_PER_FRAME; i--;) {
ibuffer = NULL;
if (hp3a_dequeue(&g_tc.ready_stats_queue, &ibuffer) == 0) {
if (ibuffer->type == HISTOGRAM &&
g_tc.histogram_buffer == NULL)
g_tc.histogram_buffer = ibuffer;
else if (ibuffer->type == PAXEL &&
g_tc.af_buffer == NULL)
g_tc.af_buffer = ibuffer;
else if (ibuffer->type == BAYER &&
g_tc.raw_buffer == NULL)
g_tc.raw_buffer = ibuffer;
else {
printk(KERN_ERR "hp3a: Error unknown "
"buffer type(%d)\n", ibuffer->type);
}
} else {
break;
}
}
for (i = QUEUE_COUNT(g_tc.sensor_read_queue); i--;) {
if (hp3a_dequeue(&g_tc.sensor_read_queue, &sensor_param) == 0) {
if (sensor_param.frame_id == g_tc.frame_count) {
if (sensor_param.exposure == (u32)-1) {
g_tc.sensor_stats.exposure = 0;
allow_exp_update = false;
} else if (sensor_param.exposure && allow_exp_update) {
g_tc.sensor_stats.exposure = sensor_param.exposure;
}
if (sensor_param.gain == (u16)-1) {
g_tc.sensor_stats.gain = 0;
allow_gain_update = false;
} else if (sensor_param.gain && allow_gain_update) {
g_tc.sensor_stats.gain = sensor_param.gain;
}
if (sensor_param.fps) {
g_tc.sensor_stats.fps = \
sensor_param.fps;
}
} else if (sensor_param.frame_id > g_tc.frame_count) {
hp3a_enqueue(&g_tc.sensor_read_queue,
&sensor_param);
}
} else {
break;
}
}
/* Histogram buffer processing and HW configuration. */
hp3a_enable_histogram();
/* AF stat buffer processing and HW configuration. */
hp3a_enable_af();
/* Notify threads waiting for stats. */
complete(&g_tc.frame_done);
}
