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/* Copyright 2021 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "common.h"
#include "charge_manager.h"
#include "charge_state_v2.h"
#include "charger.h"
#include "compile_time_macros.h"
#include "console.h"
#include "driver/charger/isl9241.h"
#include "hooks.h"
#include "usbc_ppc.h"
#include "usb_pd.h"
#include "util.h"
#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ##args)
#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ##args)
/* Charger Chip Configuration */
const struct charger_config_t chg_chips[] = {
{
.i2c_port = I2C_PORT_CHARGER,
.i2c_addr_flags = ISL9241_ADDR_FLAGS,
.drv = &isl9241_drv,
},
};
BUILD_ASSERT(ARRAY_SIZE(chg_chips) == CHARGER_NUM);
int board_set_active_charge_port(int port)
{
int is_valid_port = board_is_usb_pd_port_present(port);
int i;
if (port == CHARGE_PORT_NONE) {
CPRINTSUSB("Disabling all charger ports");
/* Disable all ports. */
for (i = 0; i < ppc_cnt; i++) {
/*
* Do not return early if one fails otherwise we can
* get into a boot loop assertion failure.
*/
if (ppc_vbus_sink_enable(i, 0))
CPRINTSUSB("Disabling C%d as sink failed.", i);
}
return EC_SUCCESS;
} else if (!is_valid_port) {
return EC_ERROR_INVAL;
}
/* Check if the port is sourcing VBUS. */
if (ppc_is_sourcing_vbus(port)) {
CPRINTFUSB("Skip enable C%d", port);
return EC_ERROR_INVAL;
}
CPRINTSUSB("New charge port: C%d", port);
/*
* Turn off the other ports' sink path FETs, before enabling the
* requested charge port.
*/
for (i = 0; i < ppc_cnt; i++) {
if (i == port)
continue;
if (ppc_vbus_sink_enable(i, 0))
CPRINTSUSB("C%d: sink path disable failed.", i);
}
/* Enable requested charge port. */
if (ppc_vbus_sink_enable(port, 1)) {
CPRINTSUSB("C%d: sink path enable failed.", port);
return EC_ERROR_UNKNOWN;
}
return EC_SUCCESS;
}
void board_set_charge_limit(int port, int supplier, int charge_ma, int max_ma,
int charge_mv)
{
/*
* Limit the input current to 96% negotiated limit,
* to account for the charger chip margin.
*/
charge_ma = charge_ma * 96 / 100;
charge_set_input_current_limit(
MAX(charge_ma, CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
}
static void set_ac_prochot(void)
{
isl9241_set_ac_prochot(CHARGER_SOLO, PD_MAX_CURRENT_MA);
}
DECLARE_HOOK(HOOK_INIT, set_ac_prochot, HOOK_PRIO_DEFAULT);
/* Set the DCPROCHOT base on battery over discharging current 10.5A */
static void set_dc_prochot(void)
{
isl9241_set_dc_prochot(CHARGER_SOLO, 10500);
}
DECLARE_HOOK(HOOK_INIT, set_dc_prochot, HOOK_PRIO_DEFAULT);
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