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// SPDX-License-Identifier: GPL-2.0
/*
* CrOS Kunit tests utilities.
*/
#include <kunit/test.h>
#include <linux/list.h>
#include <linux/minmax.h>
#include <linux/platform_data/cros_ec_commands.h>
#include <linux/platform_data/cros_ec_proto.h>
#include "cros_ec.h"
#include "cros_kunit_util.h"
int cros_kunit_ec_xfer_mock_default_result;
int cros_kunit_ec_xfer_mock_default_ret;
int cros_kunit_ec_cmd_xfer_mock_called;
int cros_kunit_ec_pkt_xfer_mock_called;
static struct list_head cros_kunit_ec_xfer_mock_in;
static struct list_head cros_kunit_ec_xfer_mock_out;
int cros_kunit_ec_xfer_mock(struct cros_ec_device *ec_dev, struct cros_ec_command *msg)
{
struct ec_xfer_mock *mock;
mock = list_first_entry_or_null(&cros_kunit_ec_xfer_mock_in, struct ec_xfer_mock, list);
if (!mock) {
msg->result = cros_kunit_ec_xfer_mock_default_result;
return cros_kunit_ec_xfer_mock_default_ret;
}
list_del(&mock->list);
memcpy(&mock->msg, msg, sizeof(*msg));
if (msg->outsize) {
mock->i_data = kunit_kzalloc(mock->test, msg->outsize, GFP_KERNEL);
if (mock->i_data)
memcpy(mock->i_data, msg->data, msg->outsize);
}
msg->result = mock->result;
if (msg->insize)
memcpy(msg->data, mock->o_data, min(msg->insize, mock->o_data_len));
list_add_tail(&mock->list, &cros_kunit_ec_xfer_mock_out);
return mock->ret;
}
int cros_kunit_ec_cmd_xfer_mock(struct cros_ec_device *ec_dev, struct cros_ec_command *msg)
{
++cros_kunit_ec_cmd_xfer_mock_called;
return cros_kunit_ec_xfer_mock(ec_dev, msg);
}
int cros_kunit_ec_pkt_xfer_mock(struct cros_ec_device *ec_dev, struct cros_ec_command *msg)
{
++cros_kunit_ec_pkt_xfer_mock_called;
return cros_kunit_ec_xfer_mock(ec_dev, msg);
}
struct ec_xfer_mock *cros_kunit_ec_xfer_mock_add(struct kunit *test, size_t size)
{
return cros_kunit_ec_xfer_mock_addx(test, size, EC_RES_SUCCESS, size);
}
struct ec_xfer_mock *cros_kunit_ec_xfer_mock_addx(struct kunit *test,
int ret, int result, size_t size)
{
struct ec_xfer_mock *mock;
mock = kunit_kzalloc(test, sizeof(*mock), GFP_KERNEL);
if (!mock)
return NULL;
list_add_tail(&mock->list, &cros_kunit_ec_xfer_mock_in);
mock->test = test;
mock->ret = ret;
mock->result = result;
mock->o_data = kunit_kzalloc(test, size, GFP_KERNEL);
if (!mock->o_data)
return NULL;
mock->o_data_len = size;
return mock;
}
struct ec_xfer_mock *cros_kunit_ec_xfer_mock_next(void)
{
struct ec_xfer_mock *mock;
mock = list_first_entry_or_null(&cros_kunit_ec_xfer_mock_out, struct ec_xfer_mock, list);
if (mock)
list_del(&mock->list);
return mock;
}
int cros_kunit_readmem_mock_offset;
u8 *cros_kunit_readmem_mock_data;
int cros_kunit_readmem_mock_ret;
int cros_kunit_readmem_mock(struct cros_ec_device *ec_dev, unsigned int offset,
unsigned int bytes, void *dest)
{
cros_kunit_readmem_mock_offset = offset;
memcpy(dest, cros_kunit_readmem_mock_data, bytes);
return cros_kunit_readmem_mock_ret;
}
void cros_kunit_mock_reset(void)
{
cros_kunit_ec_xfer_mock_default_result = 0;
cros_kunit_ec_xfer_mock_default_ret = 0;
cros_kunit_ec_cmd_xfer_mock_called = 0;
cros_kunit_ec_pkt_xfer_mock_called = 0;
INIT_LIST_HEAD(&cros_kunit_ec_xfer_mock_in);
INIT_LIST_HEAD(&cros_kunit_ec_xfer_mock_out);
cros_kunit_readmem_mock_offset = 0;
cros_kunit_readmem_mock_data = NULL;
cros_kunit_readmem_mock_ret = 0;
}
MODULE_LICENSE("GPL");
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