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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 <zephyr/devicetree.h>
#include <zephyr/sys/util_macro.h>
#include "usb_mux.h"
#include "usbc/usb_muxes.h"
/**
* @brief Macro that can be used in USB_MUX_FOREACH_USBC_PORT as filter
* argument. It allows to evaluate to "1 ||" for each named USBC port
* that has usb-muxes property.
*/
#define USB_MUX_PORT_HAS_MUX(unused1, unused2) 1 ||
/**
* Check if there is any named USBC port with usb-muxes property. It evaluates
* to "1 || 1 || ... 1 || 0" when there are multiple named USBC ports with
* usb-muxes property and to "0" when any named USBC port has usb-muxes
* property.
*
* This prevents creating struct usb_mux usb_muxes[] for platforms that didn't
* migrate USB mux configuration to DTS yet.
*/
#if USB_MUX_FOREACH_USBC_PORT(USB_MUX_PORT_HAS_MUX, _) 0
/**
* Define root of each USB muxes chain e.g.
* [0] = {
* .usb_port = 0,
* .next_mux = &USB_MUX_NODE_DT_N_S_usbc_S_port0_0_S_it5205_mux_0,
* .board_init = &board_init,
* .board_set = NULL,
* .flags = 0,
* .driver = &virtual_usb_mux_driver,
* .hpd_update = &virtual_hpd_update,
* },
* [1] = { ... },
*/
MAYBE_CONST struct usb_mux usb_muxes[] = {
USB_MUX_FOREACH_USBC_PORT(USB_MUX_FIRST, USB_MUX_ARRAY)
};
/**
* Define all USB muxes except roots e.g.
* MAYBE_CONST struct usb_mux USB_MUX_NODE_DT_N_S_usbc_S_port0_0_S_mux_0 = {
* .usb_port = 0,
* .next_mux = NULL,
* .board_init = NULL,
* .board_set = NULL,
* .flags = 0,
* .driver = &virtual_usb_mux_driver,
* .hpd_update = &virtual_hpd_update,
* };
* MAYBE_CONST struct usb_mux USB_MUX_NODE_<node_id> = { ... };
*/
USB_MUX_FOREACH_USBC_PORT(USB_MUX_NO_FIRST, USB_MUX_DEFINE)
/* Create bb_controls only if BB retimer driver is enabled */
#ifdef CONFIG_PLATFORM_EC_USBC_RETIMER_INTEL_BB
/**
* @brief bb_controls array should be constant only if configuration cannot
* change in runtime
*/
#define BB_CONTROLS_CONST \
COND_CODE_1( \
CONFIG_PLATFORM_EC_USBC_RETIMER_INTEL_BB_RUNTIME_CONFIG,\
(), (const))
/**
* Define bb_controls for BB retimers in USB muxes chain e.g.
* [0] = {
* .retimer_rst_gpio = IOEX_USB_C0_BB_RETIMER_RST,
* .usb_ls_en_gpio = IOEX_USB_C0_BB_RETIMER_LS_EN,
* },
* [1] = { ... },
*/
BB_CONTROLS_CONST struct bb_usb_control bb_controls[] = {
USB_MUX_FOREACH_USBC_PORT(USB_MUX_BB_RETIMERS, USB_MUX_ARRAY)
};
#endif /* CONFIG_PLATFORM_EC_USBC_RETIMER_INTEL_BB */
#endif /* #if USB_MUX_FOREACH_USBC_PORT(USB_MUX_PORT_HAS_MUX, _) */
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