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kevin / gru: Add BC1.2 charge ramp

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BUG=chrome-os-partner:54099
BRANCH=reef, gru
TEST=Verify charge_ramp success with a variety of BC1.2 chargers.

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I0e8bbd063e0933893a4a7f48a15a391c0ad9898a
Reviewed-on: https://chromium-review.googlesource.com/435562
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
This commit is contained in:
Shawn Nematbakhsh
2017-01-31 14:39:32 -08:00
committed by chrome-bot
parent fb063a39b3
commit df2f085c16
4 changed files with 61 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
board/kevin/board.h
View File

@@ -116,6 +116,7 @@
/* USB PD config */
#define CONFIG_CASE_CLOSED_DEBUG_EXTERNAL
#define CONFIG_CHARGE_MANAGER
#define CONFIG_CHARGE_RAMP
#define CONFIG_USB_POWER_DELIVERY
#define CONFIG_USB_PD_ALT_MODE
#define CONFIG_USB_PD_ALT_MODE_DFP
@@ -184,6 +185,7 @@
/* Modules we want to exclude */
#undef CONFIG_CMD_BATTFAKE
#undef CONFIG_CMD_CHARGER_PSYS
#undef CONFIG_CMD_FLASH
#undef CONFIG_CMD_HASH
#undef CONFIG_CMD_I2C_SCAN

2
board/kevin/build.mk
View File

@@ -10,6 +10,6 @@
CHIP:=npcx
CHIP_VARIANT:=npcx5m5g
board-y=battery.o board.o usb_pd_policy.o
board-y=battery.o board.o charge_ramp.o usb_pd_policy.o
board-$(BOARD_GRU)+=led_gru.o
board-$(BOARD_KEVIN)+=led_kevin.o

56
board/kevin/charge_ramp.c Normal file
View File

@@ -0,0 +1,56 @@
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Board-specific charge ramp callbacks. */
#include "common.h"
#include "bd9995x.h"
#include "charge_manager.h"
#include "charge_ramp.h"
#include "charge_state.h"
#include "system.h"
/**
* Return true if ramping is allowed for given supplier
*/
int board_is_ramp_allowed(int supplier)
{
/* Don't allow ramping in RO when write protected */
if (system_get_image_copy() != SYSTEM_IMAGE_RW
&& system_is_locked())
return 0;
else
return supplier == CHARGE_SUPPLIER_BC12_DCP ||
supplier == CHARGE_SUPPLIER_BC12_SDP ||
supplier == CHARGE_SUPPLIER_BC12_CDP ||
supplier == CHARGE_SUPPLIER_PROPRIETARY;
}
/**
* Return true if VBUS is sagging too low
*/
int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
{
return charger_get_vbus_voltage(port) < BD9995X_BC12_MIN_VOLTAGE;
}
/**
* Return the maximum allowed input current
*/
int board_get_ramp_current_limit(int supplier, int sup_curr)
{
return bd9995x_get_bc12_ilim(supplier);
}
/**
* Return if board is consuming full amount of input current
*/
int board_is_consuming_full_charge(void)
{
int chg_pct = charge_get_percent();
return chg_pct > 2 && chg_pct < 95;
}

2
board/kevin/ec.tasklist
View File

@@ -19,6 +19,7 @@
#ifdef BOARD_KEVIN
#define CONFIG_TASK_LIST \
TASK_ALWAYS(HOOKS, hook_task, NULL, LARGER_TASK_STACK_SIZE) \
TASK_ALWAYS(CHG_RAMP, chg_ramp_task, NULL, TASK_STACK_SIZE) \
TASK_ALWAYS(USB_CHG, usb_charger_task, NULL, TASK_STACK_SIZE) \
TASK_ALWAYS(CHARGER, charger_task, NULL, LARGER_TASK_STACK_SIZE) \
TASK_NOTEST(CHIPSET, chipset_task, NULL, LARGER_TASK_STACK_SIZE) \
@@ -33,6 +34,7 @@
#define CONFIG_TASK_LIST \
TASK_ALWAYS(HOOKS, hook_task, NULL, LARGER_TASK_STACK_SIZE) \
TASK_ALWAYS(ALS, als_task, NULL, TASK_STACK_SIZE) \
TASK_ALWAYS(CHG_RAMP, chg_ramp_task, NULL, TASK_STACK_SIZE) \
TASK_ALWAYS(USB_CHG, usb_charger_task, NULL, TASK_STACK_SIZE) \
TASK_ALWAYS(CHARGER, charger_task, NULL, LARGER_TASK_STACK_SIZE) \
TASK_NOTEST(CHIPSET, chipset_task, NULL, LARGER_TASK_STACK_SIZE) \