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tigertail: LED control

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Added GPIOs for LED2, and updated mux control so that LEDs indicate
current mux state.

BRANCH=none
BUG=b:37570358
TEST=make buildall -j
TEST=check that LEDs change on tigertail as expected

Change-Id: Ibdd3a667316ea64b319562f7a975b09eca08b2a6
Signed-off-by: Andrew Lin <aclin@google.com>
Reviewed-on: https://chromium-review.googlesource.com/484727
Commit-Ready: Nick Sanders <nsanders@chromium.org>
Tested-by: Nick Sanders <nsanders@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
This commit is contained in:
Andrew Lin
2017-04-20 17:01:18 -07:00
committed by chrome-bot
parent 7fb0338cbd
commit da0f011995
2 changed files with 32 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
board/tigertail/board.c
View File

@@ -295,6 +295,21 @@ DECLARE_CONSOLE_COMMAND(uart, command_uart,
"[off|on|flip|auto]",
"Get/set the flip and enable state of the SBU UART");
static void set_led_a(int r, int g, int b)
{
/* LEDs are active low */
gpio_set_level(GPIO_LED_R_L, !r);
gpio_set_level(GPIO_LED_G_L, !g);
gpio_set_level(GPIO_LED_B_L, !b);
}
static void set_led_b(int r, int g, int b)
{
gpio_set_level(GPIO_LED2_R_L, !r);
gpio_set_level(GPIO_LED2_G_L, !g);
gpio_set_level(GPIO_LED2_B_L, !b);
}
/* State we intend the mux GPIOs to be set. */
static int mux_state = MUX_OFF;
@@ -327,6 +342,16 @@ void set_mux_state(int state)
mux_state = MUX_OFF;
else
mux_state = state;
if (state == MUX_A)
set_led_a(0, 1, 0);
else
set_led_a(1, 0, 0);
if (state == MUX_B)
set_led_b(0, 1, 0);
else
set_led_b(1, 0, 0);
}
static int command_mux(int argc, char **argv)
@@ -378,4 +403,3 @@ static void board_init(void)
ina2xx_init(4, 0x8000, INA2XX_CALIB_1MA(15 /*mOhm*/));
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);

10
board/tigertail/gpio.inc
View File

@@ -19,9 +19,13 @@ GPIO(ST_UART_LVL_DIS, PIN(B, 10), GPIO_OUT_HIGH)
GPIO(ST_UART_TX_DIR, PIN(B, 12), GPIO_OUT_HIGH)
GPIO(ST_UART_TX_DIR_N, PIN(B, 15), GPIO_OUT_LOW)
GPIO(LED_G, PIN(B, 11), GPIO_OUT_HIGH)
GPIO(LED_R, PIN(B, 13), GPIO_OUT_LOW)
GPIO(LED_B, PIN(B, 14), GPIO_OUT_HIGH)
GPIO(LED2_G_L, PIN(A, 5), GPIO_OUT_HIGH)
GPIO(LED2_B_L, PIN(A, 8), GPIO_OUT_HIGH)
GPIO(LED2_R_L, PIN(A, 13), GPIO_OUT_LOW)
GPIO(LED_G_L, PIN(B, 11), GPIO_OUT_HIGH)
GPIO(LED_R_L, PIN(B, 13), GPIO_OUT_LOW)
GPIO(LED_B_L, PIN(B, 14), GPIO_OUT_HIGH)
/* Inputs */
GPIO(USB_C_SBU1_DET, PIN(A, 6), GPIO_INPUT)