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/* Copyright (c) 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.
*
* Tests for keyboard MKBP protocol
*/
#include "common.h"
#include "console.h"
#include "ec_commands.h"
#include "gpio.h"
#include "host_command.h"
#include "keyboard_mkbp.h"
#include "keyboard_protocol.h"
#include "keyboard_scan.h"
#include "test_util.h"
#include "util.h"
static uint8_t state[KEYBOARD_COLS];
static int ec_int_level;
static const char *action[2] = {"release", "press"};
/*****************************************************************************/
/* Mock functions */
void host_send_response(struct host_cmd_handler_args *args)
{
/* Do nothing */
}
void gpio_set_level(enum gpio_signal signal, int level)
{
if (signal == GPIO_EC_INT)
ec_int_level = !!level;
}
int lid_is_open(void)
{
return 1;
}
/*****************************************************************************/
/* Test utilities */
#define FIFO_EMPTY() (ec_int_level == 1)
#define FIFO_NOT_EMPTY() (ec_int_level == 0)
void clear_state(void)
{
memset(state, 0xff, KEYBOARD_COLS);
}
void set_state(int c, int r, int pressed)
{
uint8_t mask = (1 << r);
if (pressed)
state[c] &= ~mask;
else
state[c] |= mask;
}
int press_key(int c, int r, int pressed)
{
ccprintf("Input %s (%d, %d)\n", action[pressed], c, r);
set_state(c, r, pressed);
return keyboard_fifo_add(state);
}
int verify_key(int c, int r, int pressed)
{
struct host_cmd_handler_args args;
uint8_t mkbp_out[KEYBOARD_COLS];
int i;
if (c >= 0 && r >= 0) {
ccprintf("Verify %s (%d, %d)\n", action[pressed], c, r);
set_state(c, r, pressed);
} else {
ccprintf("Verify last state\n");
}
args.version = 0;
args.command = EC_CMD_MKBP_STATE;
args.params = NULL;
args.params_size = 0;
args.response = mkbp_out;
args.response_max = sizeof(mkbp_out);
args.response_size = 0;
if (host_command_process(&args) != EC_RES_SUCCESS)
return 0;
for (i = 0; i < KEYBOARD_COLS; ++i)
if (mkbp_out[i] != state[i])
return 0;
return 1;
}
int mkbp_config(struct ec_params_mkbp_set_config params)
{
struct host_cmd_handler_args args;
args.version = 0;
args.command = EC_CMD_MKBP_SET_CONFIG;
args.params = ¶ms;
args.params_size = sizeof(params);
args.response = NULL;
args.response_max = 0;
args.response_size = 0;
return host_command_process(&args) == EC_RES_SUCCESS;
}
int set_fifo_size(int sz)
{
struct ec_params_mkbp_set_config params;
params.config.valid_mask = EC_MKBP_VALID_FIFO_MAX_DEPTH;
params.config.valid_flags = 0;
params.config.fifo_max_depth = sz;
return mkbp_config(params);
}
int set_kb_scan_enabled(int enabled)
{
struct ec_params_mkbp_set_config params;
params.config.valid_mask = 0;
params.config.valid_flags = EC_MKBP_FLAGS_ENABLE;
params.config.flags = (enabled ? EC_MKBP_FLAGS_ENABLE : 0);
return mkbp_config(params);
}
/*****************************************************************************/
/* Tests */
int single_key_press(void)
{
keyboard_clear_buffer();
clear_state();
TEST_ASSERT(press_key(0, 0, 1) == EC_SUCCESS);
TEST_ASSERT(FIFO_NOT_EMPTY());
TEST_ASSERT(press_key(0, 0, 0) == EC_SUCCESS);
TEST_ASSERT(FIFO_NOT_EMPTY());
clear_state();
TEST_ASSERT(verify_key(0, 0, 1));
TEST_ASSERT(FIFO_NOT_EMPTY());
TEST_ASSERT(verify_key(0, 0, 0));
TEST_ASSERT(FIFO_EMPTY());
return EC_SUCCESS;
}
int test_fifo_size(void)
{
keyboard_clear_buffer();
clear_state();
TEST_ASSERT(set_fifo_size(1));
TEST_ASSERT(press_key(0, 0, 1) == EC_SUCCESS);
TEST_ASSERT(press_key(0, 0, 0) == EC_ERROR_OVERFLOW);
clear_state();
TEST_ASSERT(verify_key(0, 0, 1));
TEST_ASSERT(FIFO_EMPTY());
/* Restore FIFO size */
TEST_ASSERT(set_fifo_size(100));
return EC_SUCCESS;
}
int test_enable(void)
{
keyboard_clear_buffer();
clear_state();
TEST_ASSERT(set_kb_scan_enabled(0));
TEST_ASSERT(press_key(0, 0, 1) == EC_SUCCESS);
TEST_ASSERT(FIFO_EMPTY());
TEST_ASSERT(set_kb_scan_enabled(1));
TEST_ASSERT(press_key(0, 0, 1) == EC_SUCCESS);
TEST_ASSERT(FIFO_NOT_EMPTY());
TEST_ASSERT(verify_key(0, 0, 1));
return EC_SUCCESS;
}
int fifo_underrun(void)
{
keyboard_clear_buffer();
clear_state();
TEST_ASSERT(press_key(0, 0, 1) == EC_SUCCESS);
clear_state();
TEST_ASSERT(verify_key(0, 0, 1));
/* When FIFO under run, host command reutns last known state */
TEST_ASSERT(verify_key(-1, -1, -1));
return EC_SUCCESS;
}
void run_test(void)
{
ec_int_level = 1;
test_reset();
RUN_TEST(single_key_press);
RUN_TEST(test_fifo_size);
RUN_TEST(test_enable);
RUN_TEST(fifo_underrun);
test_print_result();
}
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