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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.
*/
#ifndef ZEPHYR_CHROME_USBC_PPC_H
#define ZEPHYR_CHROME_USBC_PPC_H
#include "usbc/ppc_aoz1380.h"
#include "usbc/ppc_nx20p348x.h"
#include "usbc/ppc_rt1739.h"
#include "usbc/ppc_sn5s330.h"
#include "usbc/ppc_syv682x.h"
#include "usbc/utils.h"
#include "usbc_ppc.h"
#include <zephyr/device.h>
#include <zephyr/devicetree.h>
/**
* @brief Create a unique name based on a PPC altnernate node.
*
* ppc_syv682x_alt: syv682x@43 {
* compatible = "silergy,syv682x";
* status = "okay";
* reg = <0x43>;
* frs_en_gpio = <&ioex_usb_c0_frs_en>;
* is-alt;
* };
*
* Usage:
* PPC_ALT_NAME_GET(DT_NODELABEL(ppc_syv682x_alt))
*
* expands to "ppc_alt_DT_N_S_i2c_100_S_syv682x_43"
*/
#define PPC_ALT_NAME_GET(node_id) DT_CAT(ppc_alt_, node_id)
/**
* @brief Get the PPC alternate entry based on a nodelabel.
*
* Usage:
* PPC_ALT_FROM_NODELABEL(ppc_syv682x_alt))
*
* expands to "ppc_alt_DT_N_S_i2c_100_S_syv682x_43"
*/
#define PPC_ALT_FROM_NODELABEL(lbl) (PPC_ALT_NAME_GET(DT_NODELABEL(lbl)))
/**
* @brief - Forward declare a global struct ppc_config_t entry based on
* a single PPC altnerate from the devicetree.
*/
#define PPC_ALT_DECLARATION(node_id) \
extern const struct ppc_config_t PPC_ALT_NAME_GET(node_id)
#define PPC_ALT_DECLARE(node_id) \
COND_CODE_1(DT_PROP_OR(node_id, is_alt, 0), \
(PPC_ALT_DECLARATION(node_id);), ())
/*
* Forward declare a struct ppc_config_t for every PPC node in the tree with the
* "is-alt" property set.
*/
DT_FOREACH_STATUS_OKAY(AOZ1380_COMPAT, PPC_ALT_DECLARE)
DT_FOREACH_STATUS_OKAY(NX20P348X_COMPAT, PPC_ALT_DECLARE)
DT_FOREACH_STATUS_OKAY(RT1739_PPC_COMPAT, PPC_ALT_DECLARE)
DT_FOREACH_STATUS_OKAY(SN5S330_COMPAT, PPC_ALT_DECLARE)
DT_FOREACH_STATUS_OKAY(SN5S330_EMUL_COMPAT, PPC_ALT_DECLARE)
DT_FOREACH_STATUS_OKAY(SYV682X_COMPAT, PPC_ALT_DECLARE)
DT_FOREACH_STATUS_OKAY(SYV682X_EMUL_COMPAT, PPC_ALT_DECLARE)
extern struct ppc_config_t ppc_chips_alt[];
#define ALT_PPC_CHIP_CHK(usbc_id, usb_port_num) \
COND_CODE_1(DT_REG_HAS_IDX(usbc_id, usb_port_num), \
(COND_CODE_1(DT_NODE_HAS_PROP(usbc_id, ppc_alt), (|| 1), \
(|| 0))), \
(|| 0))
#define PPC_ENABLE_ALTERNATE(usb_port_num) \
do { \
BUILD_ASSERT( \
(0 DT_FOREACH_STATUS_OKAY_VARGS(named_usbc_port, \
ALT_PPC_CHIP_CHK, \
usb_port_num)), \
"Selected USB node does not exist or does not specify a PPC " \
"alternate chip"); \
memcpy(&ppc_chips[usb_port_num], &ppc_chips_alt[usb_port_num], \
sizeof(struct ppc_config_t)); \
} while (0)
#define PPC_ENABLE_ALTERNATE_BY_NODELABEL(usb_port_num, nodelabel) \
memcpy(&ppc_chips[usb_port_num], &PPC_ALT_FROM_NODELABEL(nodelabel), \
sizeof(struct ppc_config_t))
#endif /* ZEPHYR_CHROME_USBC_PPC_H */
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