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/* Copyright 2022 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.
*/
#include "builtin/assert.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_state_v2.h"
#include "common.h"
#include "compile_time_macros.h"
#include "console.h"
#include "cros_board_info.h"
#include "gpio.h"
#include "gpio_signal.h"
#include "power_button.h"
#include "hooks.h"
#include "power.h"
#include "switch.h"
#include "throttle_ap.h"
#include "usbc_config.h"
#include "fw_config.h"
#include "gpio_list.h" /* Must come after other header files. */
/* Console output macros */
#define CPRINTF(format, args...) cprintf(CC_CHARGER, format, ##args)
#define CPRINTS(format, args...) cprints(CC_CHARGER, format, ##args)
/******************************************************************************/
/* USB-A charging control */
const int usb_port_enable[USB_PORT_COUNT] = {
GPIO_EN_PP5000_USBA,
};
BUILD_ASSERT(ARRAY_SIZE(usb_port_enable) == USB_PORT_COUNT);
/******************************************************************************/
int board_set_active_charge_port(int port)
{
CPRINTS("Requested charge port change to %d", port);
/*
* The charge manager may ask us to switch to no charger if we're
* running off USB-C only but upstream doesn't support PD. It requires
* that we accept this switch otherwise it triggers an assert and EC
* reset; it's not possible to boot the AP anyway, but we want to avoid
* resetting the EC so we can continue to do the "low power" LED blink.
*/
if (port == CHARGE_PORT_NONE)
return EC_SUCCESS;
if (port < 0 || CHARGE_PORT_COUNT <= port)
return EC_ERROR_INVAL;
if (port == charge_manager_get_active_charge_port())
return EC_SUCCESS;
/* Don't charge from a source port */
if (board_vbus_source_enabled(port))
return EC_ERROR_INVAL;
if (!chipset_in_state(CHIPSET_STATE_ANY_OFF)) {
int bj_active, bj_requested;
if (charge_manager_get_active_charge_port() != CHARGE_PORT_NONE)
/* Change is only permitted while the system is off */
return EC_ERROR_INVAL;
/*
* Current setting is no charge port but the AP is on, so the
* charge manager is out of sync (probably because we're
* reinitializing after sysjump). Reject requests that aren't
* in sync with our outputs.
*/
bj_active = !gpio_get_level(GPIO_EN_PPVAR_BJ_ADP_L);
bj_requested = port == CHARGE_PORT_BARRELJACK;
if (bj_active != bj_requested)
return EC_ERROR_INVAL;
}
CPRINTS("New charger p%d", port);
switch (port) {
case CHARGE_PORT_TYPEC0:
gpio_set_level(GPIO_EN_PPVAR_BJ_ADP_L, 1);
break;
case CHARGE_PORT_BARRELJACK:
/* Make sure BJ adapter is sourcing power */
if (gpio_get_level(GPIO_BJ_ADP_PRESENT_ODL))
return EC_ERROR_INVAL;
gpio_set_level(GPIO_EN_PPVAR_BJ_ADP_L, 0);
break;
default:
return EC_ERROR_INVAL;
}
return EC_SUCCESS;
}
void board_set_charge_limit(int port, int supplier, int charge_ma, int max_ma,
int charge_mv)
{
}
static void adp_state_init(void)
{
ASSERT(CHARGE_PORT_ENUM_COUNT == CHARGE_PORT_COUNT);
/*
* Initialize all charge suppliers to 0. The charge manager waits until
* all ports have reported in before doing anything.
*/
for (int i = 0; i < CHARGE_PORT_COUNT; i++) {
for (int j = 0; j < CHARGE_SUPPLIER_COUNT; j++)
charge_manager_update_charge(j, i, NULL);
}
}
DECLARE_HOOK(HOOK_INIT, adp_state_init, HOOK_PRIO_INIT_CHARGE_MANAGER + 1);
static void board_init(void)
{
gpio_enable_interrupt(GPIO_BJ_ADP_PRESENT_ODL);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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