Move battery LED code on spring to common

It's not board-specific, so move it out of board.c.

No functional changes; this is just moving code and renaming a few functions.

BUG=chrome-os-partner:18256
BRANCH=none
TEST=build spring

Change-Id: Ib004066aed93745cb0c96d3cb45d70b728545492
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/45918

2 files changed, 0 insertions, 127 deletions

diff --git a/board/spring/board.c b/board/spring/board.c
index 82be07121f..cdb7abe3d7 100644
--- a/board/spring/board.c
+++ b/board/spring/board.c
@@ -16,10 +16,8 @@
 #include "host_command.h"
 #include "i2c.h"
 #include "keyboard_scan.h"
-#include "lp5562.h"
 #include "pmu_tpschrome.h"
 #include "registers.h"
-#include "smart_battery.h"
 #include "stm32_adc.h"
 #include "timer.h"
 #include "util.h"
@@ -32,21 +30,6 @@
 
 #define HARD_RESET_TIMEOUT_MS 5
 
-/* We use yellow LED instead of blue LED. Re-map colors here. */
-#define LED_COLOR_NONE   LP5562_COLOR_NONE
-#define LED_COLOR_GREEN  LP5562_COLOR_GREEN
-#define LED_COLOR_YELLOW LP5562_COLOR_BLUE
-#define LED_COLOR_RED    LP5562_COLOR_RED
-
-/* LED breathing program */
-uint8_t breathing_prog[] = {0x41, 0xff,  /* 0x80 -> 0x0 */
-			    0x41, 0x7f,  /* 0x0 -> 0x80 */
-			    0x7f, 0x00,  /* Wait ~4s */
-			    0x7f, 0x00,
-			    0x7f, 0x00,
-			    0x7f, 0x00,
-			    0x00, 0x00}; /* Repeat */
-
 void usb_charge_interrupt(enum gpio_signal signal);
 
 /* GPIO signal list.  Must match order from enum gpio_signal. */
@@ -311,115 +294,6 @@ int extpower_is_present(void)
 
 	return vbus_good;
 }
-
-int board_led_breathing(int enabled)
-{
-	int ret = 0;
-
-	if (enabled) {
-		ret |= lp5562_engine_load(LP5562_ENG_SEL_1,
-					  breathing_prog,
-					  sizeof(breathing_prog));
-		ret |= lp5562_engine_control(LP5562_ENG_RUN,
-					     LP5562_ENG_HOLD,
-					     LP5562_ENG_HOLD);
-		ret |= lp5562_set_engine(LP5562_ENG_SEL_NONE,
-					 LP5562_ENG_SEL_NONE,
-					 LP5562_ENG_SEL_1);
-	} else {
-		ret |= lp5562_engine_control(LP5562_ENG_HOLD,
-					     LP5562_ENG_HOLD,
-					     LP5562_ENG_HOLD);
-		ret |= lp5562_set_engine(LP5562_ENG_SEL_NONE,
-					 LP5562_ENG_SEL_NONE,
-					 LP5562_ENG_SEL_NONE);
-	}
-
-	return ret;
-}
-
-static void board_battery_led_update(void)
-{
-	int current;
-	int desired_current;
-
-	/* Current states and next states */
-	static uint32_t color = LED_COLOR_RED;
-	static int breathing;
-	static int led_power;
-	int new_color = LED_COLOR_RED;
-	int new_breathing = 0;
-	int new_led_power;
-
-	/* Determine LED power */
-	new_led_power = extpower_is_present();
-	if (new_led_power != led_power) {
-		led_power = new_led_power;
-		if (new_led_power) {
-			lp5562_poweron();
-		} else {
-			color = LED_COLOR_NONE;
-			if (breathing) {
-				board_led_breathing(0);
-				breathing = 0;
-			}
-			lp5562_poweroff();
-		}
-	}
-	if (!new_led_power)
-		return;
-
-	/*
-	 * LED power is controlled by accessory detection. We only
-	 * set color here.
-	 */
-	switch (charge_get_state()) {
-	case ST_IDLE:
-		new_color = LED_COLOR_GREEN;
-		break;
-	case ST_DISCHARGING:
-		/* Discharging with AC, must be battery assist */
-		new_color = LED_COLOR_YELLOW;
-		new_breathing = 1;
-		break;
-	case ST_PRE_CHARGING:
-		new_color = LED_COLOR_YELLOW;
-		break;
-	case ST_CHARGING:
-		if (battery_current(&current) ||
-		    battery_desired_current(&desired_current)) {
-			/* Cannot talk to the battery. Set LED to red. */
-			new_color = LED_COLOR_RED;
-			break;
-		}
-
-		if (current < 0 && desired_current > 0) { /* Battery assist */
-			new_breathing = 1;
-			new_color = LED_COLOR_YELLOW;
-			break;
-		}
-
-		if (current && desired_current)
-			new_color = LED_COLOR_YELLOW;
-		else
-			new_color = LED_COLOR_GREEN;
-		break;
-	case ST_CHARGING_ERROR:
-		new_color = LED_COLOR_RED;
-		break;
-	}
-
-	if (new_color != color) {
-		lp5562_set_color(new_color);
-		color = new_color;
-	}
-	if (new_breathing != breathing) {
-		board_led_breathing(new_breathing);
-		breathing = new_breathing;
-	}
-}
-DECLARE_HOOK(HOOK_SECOND, board_battery_led_update, HOOK_PRIO_DEFAULT);
-
 /*****************************************************************************/
 /* Host commands */
 
diff --git a/board/spring/usb_charging.c b/board/spring/usb_charging.c
index 1818b4a489..7d9d5e168f 100644
--- a/board/spring/usb_charging.c
+++ b/board/spring/usb_charging.c
@@ -10,7 +10,6 @@
 #include "console.h"
 #include "hooks.h"
 #include "gpio.h"
-#include "lp5562.h"
 #include "keyboard_scan.h"
 #include "pmu_tpschrome.h"
 #include "registers.h"