cec-follower: add --standby and --toggle-power-status

Add the --standby option to start the follower with the device
in Standby status.

Add the --toggle-power-status <secs> option to let the follower
toggle the emulated power status every <secs> seconds. This helps
testing power status transtions.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

4 files changed, 34 insertions, 1 deletions

diff --git a/utils/cec-follower/cec-follower.1.in b/utils/cec-follower/cec-follower.1.in
index 61c591b3..281651ea 100644
--- a/utils/cec-follower/cec-follower.1.in
+++ b/utils/cec-follower/cec-follower.1.in
@@ -85,6 +85,13 @@ Show state changes from the emulated device.
 \fB\-\-service\-by\-dig\-id\fR
 Report digital services by digital ID instead of by channel.
 .TP
+\fB\-\-standby\fR
+Start the follower in the Standby status.
+.TP
+\fB\-\-toggle\-power\-status\fR \fI<secs>\fR
+Toggle the power status every <secs> seconds. Only supported if the follower
+is emulating a TV.
+.TP
 \fB\-i\fR, \fB\-\-ignore\fR \fI<la>,<opcode>\fR
 Ignore messages from logical address \fI<la>\fR and opcode
 \fI<opcode>\fR. 'all' can be used for \fI<la>\fR or \fI<opcode>\fR to match
diff --git a/utils/cec-follower/cec-follower.cpp b/utils/cec-follower/cec-follower.cpp
index 673c6e31..9e049ef1 100644
--- a/utils/cec-follower/cec-follower.cpp
+++ b/utils/cec-follower/cec-follower.cpp
@@ -43,6 +43,8 @@ enum Option {
 	OptShowState = 's',
 	OptWallClock = 'w',
 	OptServiceByDigID = 128,
+	OptStandby,
+	OptTogglePowerStatus,
 	OptVersion,
 	OptLast = 256
 };
@@ -67,6 +69,8 @@ static struct option long_options[] = {
 	{ "show-state", no_argument, 0, OptShowState },
 	{ "wall-clock", no_argument, 0, OptWallClock },
 	{ "service-by-dig-id", no_argument, 0, OptServiceByDigID },
+	{ "standby", no_argument, 0, OptStandby },
+	{ "toggle-power-status", required_argument, 0, OptTogglePowerStatus },
 	{ "ignore", required_argument, 0, OptIgnore },
 	{ "version", no_argument, 0, OptVersion },
 
@@ -91,6 +95,9 @@ static void usage()
 	       "  -m, --show-msgs     Show received messages\n"
 	       "  -s, --show-state    Show state changes from the emulated device\n"
 	       "  --service-by-dig-id Report digital services by digital ID instead of by channel\n"
+	       "  --standby           Start in Standby state\n"
+	       "  --toggle-power-status <secs>\n"
+	       "                      Toggle the power status every <secs> seconds\n"
 	       "  -i, --ignore <la>,<opcode>\n"
 	       "                      Ignore messages from logical address <la> and opcode\n"
 	       "                      <opcode>. 'all' can be used for <la> or <opcode> to match\n"
@@ -300,7 +307,10 @@ int cec_named_ioctl(int fd, const char *name,
 
 void state_init(struct node &node)
 {
-	node.state.power_status = CEC_OP_POWER_STATUS_ON;
+	if (options[OptStandby])
+		node.state.power_status = CEC_OP_POWER_STATUS_STANDBY;
+	else
+		node.state.power_status = CEC_OP_POWER_STATUS_ON;
 	node.state.old_power_status = CEC_OP_POWER_STATUS_ON;
 	node.state.power_status_changed_time = 0;
 	strcpy(node.state.menu_language, "eng");
@@ -321,6 +331,7 @@ int main(int argc, char **argv)
 	struct node node = { };
 	const char *driver = NULL;
 	const char *adapter = NULL;
+	unsigned toggle_power_status = 0;
 	char short_options[26 * 2 * 2 + 1];
 	int idx = 0;
 	int fd = -1;
@@ -388,6 +399,9 @@ int main(int argc, char **argv)
 		case OptShowState:
 			show_state = true;
 			break;
+		case OptTogglePowerStatus:
+			toggle_power_status = strtoul(optarg, NULL, 0);
+			break;
 		case OptIgnore: {
 			bool all_la = !strncmp(optarg, "all", 3);
 			bool all_opcodes = true;
@@ -480,6 +494,7 @@ int main(int argc, char **argv)
 	node.caps = caps.capabilities;
 	node.available_log_addrs = caps.available_log_addrs;
 	node.state.service_by_dig_id = options[OptServiceByDigID];
+	node.state.toggle_power_status = toggle_power_status;
 	state_init(node);
 
 	printf("cec-follower SHA                   : %s\n", STRING(GIT_SHA));
diff --git a/utils/cec-follower/cec-follower.h b/utils/cec-follower/cec-follower.h
index 222342e7..380bd480 100644
--- a/utils/cec-follower/cec-follower.h
+++ b/utils/cec-follower/cec-follower.h
@@ -57,6 +57,7 @@ struct state {
 	bool service_by_dig_id;
 	bool tuner_report_changes;
 	bool deck_report_changes;
+	unsigned toggle_power_status;
 };
 
 struct node {
diff --git a/utils/cec-follower/cec-processing.cpp b/utils/cec-follower/cec-processing.cpp
index 074e245d..e5021aa3 100644
--- a/utils/cec-follower/cec-processing.cpp
+++ b/utils/cec-follower/cec-processing.cpp
@@ -871,6 +871,7 @@ void testProcessing(struct node *node, bool wallclock)
 	unsigned me;
 	unsigned last_poll_la = 15;
 	__u8 last_pwr_state = current_power_state(node);
+	time_t last_pwr_status_toggle = time(NULL);
 
 	clock_gettime(CLOCK_MONOTONIC, &start_monotonic);
 	gettimeofday(&start_timeofday, NULL);
@@ -972,6 +973,15 @@ void testProcessing(struct node *node, bool wallclock)
 			last_pwr_state = pwr_state;
 		}
 
+		if (node->state.toggle_power_status && cec_has_tv(1 << me) &&
+		    (time(NULL) - last_pwr_status_toggle > node->state.toggle_power_status)) {
+			last_pwr_status_toggle = time(NULL);
+			if (pwr_state & 1) // standby or to-standby
+				exit_standby(node);
+			else
+				enter_standby(node);
+		}
+
 		__u64 ts_now = get_ts();
 		unsigned poll_la = ts_to_s(ts_now) % 16;