Lindar: Lindar's lightbar support in S0ix/S3

1. Lid is closed, lightbar keep off
2. Lid is opened, its behavior follow below.
   AC+Battery < 20%, lightbar solid 2 amber led on.
   AC+Battery < 40%, lightbar solid 4 amber led on.
   AC+Battery < 60%, lightbar solid 6 amber led on.
   AC+Battery < 80%, lightbar solid 8 amber led on.
   AC+Battery < 97%, lightbar solid 10 amber led on.
   AC+Battery >= 97%, lightbar solid 10 green led on.
   Battery only >= 15%, lightbar keep off.
   Battery low < 15%, lightbar blink amber color, 1s on, 5s off.
3. Some SKU un-support lightbar, and shouldn't run lightbar task.
4. Lightbar is powered by PP3300_A, and shouldn't run it in S4/S5/G3.
5. Add debounce time for lightbar state change.

BUG=b:174133147
BRANCH=volteer
TEST=make buildall, test lightbar behavior in S0ix/S3.

Signed-off-by: reno.wang <reno.wang@lcfc.corp-partner.google.com>
Change-Id: Ibbdc17627f7b2d1b2abbbad23b6c06024455e66b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2739008
Reviewed-by: Keith Short <keithshort@chromium.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/board/lindar/board.c b/board/lindar/board.c
index c65421b08b..57d9fdeb14 100644
--- a/board/lindar/board.c
+++ b/board/lindar/board.c
@@ -91,6 +91,18 @@ static void board_init(void)
 }
 DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
 
+int board_is_i2c_port_powered(int port)
+{
+	if (port != I2C_PORT_LIGHTBAR)
+		return 1;
+
+	/*
+	 * Lightbar rails are off in S5/G3
+	 * Refer CL-2739008.
+	 */
+	return chipset_in_state(CHIPSET_STATE_ANY_OFF) ? 0 : 1;
+}
+
 int board_is_lid_angle_tablet_mode(void)
 {
 	return ec_cfg_has_tabletmode();