blob: 15299381a385b41fee500450ddf70b80b29787fa [file] [log] [blame]
/*
* Copyright 2020 Google LLC
* Copyright (c) 2020 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#define LOG_LEVEL CONFIG_EMUL_LOG_LEVEL
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(emul);
#include <zephyr/device.h>
#include <zephyr/drivers/emul.h>
#include <zephyr/sys/iterable_sections.h>
#include <string.h>
const struct emul *emul_get_binding(const char *name)
{
STRUCT_SECTION_FOREACH(emul, emul_it) {
if (strcmp(emul_it->dev->name, name) == 0) {
return emul_it;
}
}
return NULL;
}
int emul_init_for_bus(const struct device *dev)
{
const struct emul_list_for_bus *cfg = dev->config;
/*
* Walk the list of children, find the corresponding emulator and
* initialise it.
*/
const struct emul_link_for_bus *elp;
const struct emul_link_for_bus *const end = cfg->children + cfg->num_children;
LOG_INF("Registering %d emulator(s) for %s", cfg->num_children, dev->name);
for (elp = cfg->children; elp < end; elp++) {
const struct emul *emul = emul_get_binding(elp->dev->name);
__ASSERT(emul, "Cannot find emulator for '%s'", elp->dev->name);
switch (emul->bus_type) {
case EMUL_BUS_TYPE_I2C:
emul->bus.i2c->target = emul;
break;
case EMUL_BUS_TYPE_ESPI:
emul->bus.espi->target = emul;
break;
case EMUL_BUS_TYPE_SPI:
emul->bus.spi->target = emul;
break;
}
int rc = emul->init(emul, dev);
if (rc != 0) {
LOG_WRN("Init %s emulator failed: %d",
elp->dev->name, rc);
}
switch (emul->bus_type) {
#ifdef CONFIG_I2C_EMUL
case EMUL_BUS_TYPE_I2C:
rc = i2c_emul_register(dev, emul->bus.i2c);
break;
#endif /* CONFIG_I2C_EMUL */
#ifdef CONFIG_ESPI_EMUL
case EMUL_BUS_TYPE_ESPI:
rc = espi_emul_register(dev, emul->bus.espi);
break;
#endif /* CONFIG_ESPI_EMUL */
#ifdef CONFIG_SPI_EMUL
case EMUL_BUS_TYPE_SPI:
rc = spi_emul_register(dev, emul->bus.spi);
break;
#endif /* CONFIG_SPI_EMUL */
default:
rc = -EINVAL;
LOG_WRN("Found no emulated bus enabled to register emulator %s",
elp->dev->name);
}
if (rc != 0) {
LOG_WRN("Failed to register emulator for %s: %d", elp->dev->name, rc);
}
}
return 0;
}