9664f863eb
Verify backend API is functional with the emulator subsystem. Signed-off-by: Keith Short <keithshort@google.com>
83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/*
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* Copyright 2023 Google LLC
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "emul_tester.h"
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#include <zephyr/device.h>
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#include <zephyr/drivers/emul.h>
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#include <zephyr/drivers/emul_stub_device.h>
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#include <zephyr/drivers/i2c.h>
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#include <zephyr/drivers/i2c_emul.h>
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#define DT_DRV_COMPAT vnd_emul_tester
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struct emul_tester_cfg {
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int scale;
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};
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struct emul_tester_data {
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int action;
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};
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static int emul_tester_set_action(const struct emul *target, int action)
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{
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const struct emul_tester_cfg *cfg = target->cfg;
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struct emul_tester_data *data = target->data;
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data->action = action * cfg->scale;
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return 0;
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}
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static int emul_tester_get_action(const struct emul *target, int *action)
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{
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struct emul_tester_data *data = target->data;
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*action = data->action;
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return 0;
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}
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static int emul_tester_transfer(const struct emul *target, struct i2c_msg *msgs, int num_msgs,
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int addr)
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{
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ARG_UNUSED(target);
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ARG_UNUSED(msgs);
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ARG_UNUSED(num_msgs);
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ARG_UNUSED(addr);
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return -ENOTSUP;
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}
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static struct i2c_emul_api bus_api = {
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.transfer = emul_tester_transfer,
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};
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static const struct emul_tester_backend_api emul_tester_backend_api = {
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.set_action = emul_tester_set_action,
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.get_action = emul_tester_get_action,
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};
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static int emul_tester_init(const struct emul *target, const struct device *parent)
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{
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ARG_UNUSED(target);
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ARG_UNUSED(parent);
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return 0;
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}
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#define EMUL_TESTER(n) \
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static struct emul_tester_data emul_tester_data_##n; \
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static const struct emul_tester_cfg emul_tester_cfg_##n = { \
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.scale = DT_INST_PROP(n, scale), \
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}; \
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EMUL_DT_INST_DEFINE(n, emul_tester_init, &emul_tester_data_##n, &emul_tester_cfg_##n, \
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&bus_api, &emul_tester_backend_api);
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DT_INST_FOREACH_STATUS_OKAY(EMUL_TESTER)
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DT_INST_FOREACH_STATUS_OKAY(EMUL_STUB_DEVICE)
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