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/* Copyright 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Test host command.
*/
#include "common.h"
#include "console.h"
#include "host_command.h"
#include "task.h"
#include "test_util.h"
#include "timer.h"
#include "util.h"
/* Request/response buffer size (and maximum command length) */
#define BUFFER_SIZE 128
struct host_packet pkt;
static char resp_buf[BUFFER_SIZE];
static char req_buf[BUFFER_SIZE + 4];
struct ec_host_request *req = (struct ec_host_request *)req_buf;
struct ec_params_hello *p = (struct ec_params_hello *)(req_buf + sizeof(*req));
struct ec_host_response *resp = (struct ec_host_response *)resp_buf;
struct ec_response_hello *r =
(struct ec_response_hello *)(resp_buf + sizeof(*resp));
static void hostcmd_respond(struct host_packet *pkt)
{
task_wake(TASK_ID_TEST_RUNNER);
}
static char calculate_checksum(const char *buf, int size)
{
int c = 0;
int i;
for (i = 0; i < size; ++i)
c += buf[i];
return -c;
}
static void hostcmd_send(void)
{
req->checksum = calculate_checksum(req_buf, pkt.request_size);
host_packet_receive(&pkt);
task_wait_event(-1);
}
static void hostcmd_fill_in_default(void)
{
req->struct_version = 3;
req->checksum = 0;
req->command = EC_CMD_HELLO;
req->command_version = 0;
req->reserved = 0;
req->data_len = 4;
p->in_data = 0x11223344;
pkt.request_size = 0;
pkt.send_response = hostcmd_respond;
pkt.request = (const void *)req_buf;
pkt.request_max = BUFFER_SIZE;
pkt.request_size = sizeof(*req) + sizeof(*p);
pkt.response = (void *)resp_buf;
pkt.response_max = BUFFER_SIZE;
pkt.driver_result = 0;
}
static int test_hostcmd_ok(void)
{
hostcmd_fill_in_default();
hostcmd_send();
TEST_ASSERT(calculate_checksum(resp_buf,
sizeof(*resp) + resp->data_len) == 0);
TEST_ASSERT(resp->result == EC_RES_SUCCESS);
TEST_ASSERT(r->out_data == 0x12243648);
return EC_SUCCESS;
}
static int test_hostcmd_too_short(void)
{
hostcmd_fill_in_default();
/* Smaller than header */
pkt.request_size = sizeof(*req) - 4;
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_REQUEST_TRUNCATED);
/* Smaller than expected data size */
pkt.request_size = sizeof(*req);
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_REQUEST_TRUNCATED);
return EC_SUCCESS;
}
static int test_hostcmd_too_long(void)
{
hostcmd_fill_in_default();
/* Larger than request buffer */
pkt.request_size = BUFFER_SIZE + 4;
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_REQUEST_TRUNCATED);
return EC_SUCCESS;
}
static int test_hostcmd_driver_error(void)
{
hostcmd_fill_in_default();
pkt.driver_result = EC_RES_ERROR;
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_ERROR);
return EC_SUCCESS;
}
static int test_hostcmd_invalid_command(void)
{
hostcmd_fill_in_default();
req->command = 0xff;
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_INVALID_COMMAND);
return EC_SUCCESS;
}
static int test_hostcmd_wrong_command_version(void)
{
hostcmd_fill_in_default();
req->command_version = 1;
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_INVALID_VERSION);
return EC_SUCCESS;
}
static int test_hostcmd_wrong_struct_version(void)
{
hostcmd_fill_in_default();
req->struct_version = 4;
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_INVALID_HEADER);
req->struct_version = 2;
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_INVALID_HEADER);
return EC_SUCCESS;
}
static int test_hostcmd_invalid_checksum(void)
{
hostcmd_fill_in_default();
req->checksum++;
hostcmd_send();
TEST_ASSERT(resp->result == EC_RES_INVALID_CHECKSUM);
return EC_SUCCESS;
}
void run_test(void)
{
wait_for_task_started();
test_reset();
RUN_TEST(test_hostcmd_ok);
RUN_TEST(test_hostcmd_too_short);
RUN_TEST(test_hostcmd_too_long);
RUN_TEST(test_hostcmd_driver_error);
RUN_TEST(test_hostcmd_invalid_command);
RUN_TEST(test_hostcmd_wrong_command_version);
RUN_TEST(test_hostcmd_wrong_struct_version);
RUN_TEST(test_hostcmd_invalid_checksum);
test_print_result();
}
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