ec/lenovo/h8: Add panic method

Add two additional LED IDs.
Add Kconfig menu entries to allow selecting the action
to execute on death.
Overwrite weak die_notify method to notify user on death.
Flash all LEDs and play beep code 10 depending on Kconfig
options.

Successfully tested on:
Tested on Lenovo T500.
Tested on Lenovo X200.

Tested on Lenovo T430, but only LEDs are flashing.

Change-Id: Id34d399f154952a48c1f4ccb0c41a238b2d7ccb8
Signed-off-by: Patrick Rudolph <siro@das-labor.org
Reviewed-on: https://review.coreboot.org/19695
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/ec/lenovo/h8/Kconfig

@@ -9,6 +9,18 @@ config SEABIOS_PS2_TIMEOUT
 	depends on PAYLOAD_SEABIOS
 	default 3000
 
+config H8_BEEP_ON_DEATH
+	bool "Beep on fatal error"
+	default y
+	help
+	  Beep when encountered a fatal error.
+
+config H8_FLASH_LEDS_ON_DEATH
+	bool "Flash LEDs on fatal error"
+	default y
+	help
+	  Flash all LEDs when encountered a fatal error.
+
 endif
 
 config H8_DOCK_EARLY_INIT

src/ec/lenovo/h8/Makefile.inc

@@ -1,5 +1,10 @@
 ifeq ($(CONFIG_EC_LENOVO_H8),y)
 
+ifneq ($(filter y,$(CONFIG_H8_BEEP_ON_DEATH) $(CONFIG_H8_FLASH_LEDS_ON_DEATH)),)
+romstage-y += panic.c
+ramstage-y += panic.c
+endif
+
 ramstage-y += h8.c
 smm-y += smm.c
 

src/ec/lenovo/h8/h8.h

@@ -71,6 +71,8 @@ void h8_mainboard_init_dock (void);
 #define H8_LED_CONTROL_SUSPEND_LED	0x07
 #define H8_LED_CONTROL_DOCK_LED1	0x08
 #define H8_LED_CONTROL_DOCK_LED2	0x09
+#define H8_LED_CONTROL_ACDC_LED		0x0c
+#define H8_LED_CONTROL_MUTE_LED		0x0e
 
 #define H8_USB_ALWAYS_ON		0x0d
 #define H8_USB_ALWAYS_ON_ENABLE		0x01

src/ec/lenovo/h8/panic.c

@@ -0,0 +1,51 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Patrick Rudolph <siro@das-labor.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <console/console.h>
+#include <ec/acpi/ec.h>
+
+#include "h8.h"
+
+static void h8_panic(void)
+{
+	if (IS_ENABLED(CONFIG_H8_FLASH_LEDS_ON_DEATH)) {
+		static const u8 leds[] = {
+			H8_LED_CONTROL_POWER_LED,
+			H8_LED_CONTROL_BAT0_LED,
+			H8_LED_CONTROL_BAT1_LED,
+			H8_LED_CONTROL_UBAY_LED,
+			H8_LED_CONTROL_SUSPEND_LED,
+			H8_LED_CONTROL_DOCK_LED1,
+			H8_LED_CONTROL_DOCK_LED2,
+			H8_LED_CONTROL_ACDC_LED,
+			H8_LED_CONTROL_MUTE_LED
+		};
+
+		/* Flash all LEDs */
+		for (size_t i = 0; i < ARRAY_SIZE(leds); i++)
+			ec_write(H8_LED_CONTROL,
+				 H8_LED_CONTROL_BLINK | leds[i]);
+	}
+	if (IS_ENABLED(CONFIG_H8_BEEP_ON_DEATH)) {
+		/* Beep 4 Sec. 1250 Hz */
+		ec_write(H8_SOUND_ENABLE1, 4);
+		ec_write(H8_SOUND_REPEAT, 1);
+		ec_write(H8_SOUND_REG, 10);
+	}
+}
+
+void die_notify(void)
+{
+	h8_panic();
+}