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/* Copyright 2023 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Myst board-specific USB-C mux configuration */
#include "console.h"
#include "cros_board_info.h"
#include "cros_cbi.h"
#include "hooks.h"
#include "usb_mux.h"
#include "usbc/ppc.h"
#include "usbc/tcpci.h"
#include "usbc/usb_muxes.h"
#include "usbc_config.h"
#include <zephyr/drivers/gpio.h>
#include <zephyr/logging/log.h>
LOG_MODULE_DECLARE(myst, CONFIG_MYST_LOG_LEVEL);
uint32_t get_io_db_type_from_cached_cbi(void)
{
uint32_t io_db_type;
int ret = cros_cbi_get_fw_config(FW_IO_DB, &io_db_type);
if (ret != 0) {
io_db_type = FW_IO_DB_NONE;
LOG_ERR("Failed to get IO_DB value: %d", ret);
}
return io_db_type;
}
__override uint8_t board_get_usb_pd_port_count(void)
{
if (get_io_db_type_from_cached_cbi() == FW_IO_DB_NONE)
return CONFIG_USB_PD_PORT_MAX_COUNT - 1;
else
return CONFIG_USB_PD_PORT_MAX_COUNT;
}
void ppc_interrupt(enum gpio_signal signal)
{
uint32_t io_db_type = get_io_db_type_from_cached_cbi();
switch (signal) {
case GPIO_USB_C0_PPC_INT_ODL:
ktu1125_interrupt(USBC_PORT_C0);
break;
case GPIO_USB_C1_PPC_INT_ODL:
if (io_db_type == FW_IO_DB_SKU_A) {
nx20p348x_interrupt(USBC_PORT_C1);
}
if (io_db_type == FW_IO_DB_SKU_B) {
ktu1125_interrupt(USBC_PORT_C1);
}
break;
default:
break;
}
}
static void setup_mux(void)
{
switch (get_io_db_type_from_cached_cbi()) {
default:
case FW_IO_DB_NONE:
LOG_INF("USB DB: not connected");
break;
case FW_IO_DB_SKU_A:
LOG_INF("USB DB: Setting SKU_A DB");
TCPC_ENABLE_ALTERNATE_BY_NODELABEL(USBC_PORT_C1,
tcpc_rt1718_port1);
PPC_ENABLE_ALTERNATE_BY_NODELABEL(USBC_PORT_C1,
ppc_nx20p_port1);
break;
case FW_IO_DB_SKU_B:
LOG_INF("USB DB: Setting SKU_B DB");
TCPC_ENABLE_ALTERNATE_BY_NODELABEL(USBC_PORT_C1,
tcpc_ps8815_port1);
PPC_ENABLE_ALTERNATE_BY_NODELABEL(USBC_PORT_C1,
ppc_ktu1125_port1);
break;
}
}
DECLARE_HOOK(HOOK_INIT, setup_mux, HOOK_PRIO_INIT_I2C);
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