diff options
Diffstat (limited to 'baseboard/brask/charger.c')
-rw-r--r-- | baseboard/brask/charger.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/baseboard/brask/charger.c b/baseboard/brask/charger.c new file mode 100644 index 0000000000..04be67147d --- /dev/null +++ b/baseboard/brask/charger.c @@ -0,0 +1,90 @@ +/* Copyright 2021 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 "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/bq25710.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 = BQ25710_SMBUS_ADDR1_FLAGS, + .drv = &bq25710_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; +} + +__overridable void board_set_charge_limit(int port, int supplier, int charge_ma, + int max_ma, int charge_mv) +{ + charge_set_input_current_limit(MAX(charge_ma, + CONFIG_CHARGER_INPUT_CURRENT), + charge_mv); +} |