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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 <zephyr/devicetree.h>
#ifdef __REQUIRE_ZEPHYR_GPIOS__
#undef __REQUIRE_ZEPHYR_GPIOS__
#endif
#include "gpio.h"
#include "util.h"
#define IS_BOARD_COMPATIBLE DT_NODE_HAS_COMPAT(DT_PATH(board), cros_ec_gpio_id)
#define IS_SKU_COMPATIBLE DT_NODE_HAS_COMPAT(DT_PATH(sku), cros_ec_gpio_id)
#define CONVERT_NUMERAL_SYSTEM_EVAL(system, bits, nbits) \
system##_from_bits(bits, nbits)
#define CONVERT_NUMERAL_SYSTEM(system, bits, nbits) \
CONVERT_NUMERAL_SYSTEM_EVAL(system, bits, nbits)
/* TODO: b/218904113: Convert to using Zephyr GPIOs */
#define READ_PIN_FROM_PHANDLE(node_id, prop, idx) \
gpio_get_ternary(GPIO_SIGNAL(DT_PHANDLE_BY_IDX(node_id, prop, idx))),
#if DT_NODE_EXISTS(DT_PATH(sku)) && IS_SKU_COMPATIBLE
__override uint32_t board_get_sku_id(void)
{
static uint32_t sku_id = (uint32_t)-1;
if (sku_id == (uint32_t)-1) {
int bits[] = { DT_FOREACH_PROP_ELEM(DT_PATH(sku), bits,
READ_PIN_FROM_PHANDLE) };
if (sizeof(bits) == 0)
return (uint32_t)-1;
sku_id = CONVERT_NUMERAL_SYSTEM(DT_STRING_TOKEN(DT_PATH(sku),
system),
bits, ARRAY_SIZE(bits));
}
return sku_id;
}
#endif
#if DT_NODE_EXISTS(DT_PATH(board)) && IS_BOARD_COMPATIBLE
__override int board_get_version(void)
{
static int board_version = -1;
if (board_version == -1) {
int bits[] = { DT_FOREACH_PROP_ELEM(DT_PATH(board), bits,
READ_PIN_FROM_PHANDLE) };
if (sizeof(bits) == 0)
return -1;
board_version = CONVERT_NUMERAL_SYSTEM(
DT_STRING_TOKEN(DT_PATH(board), system), bits,
ARRAY_SIZE(bits));
}
return board_version;
}
#endif
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