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/* Copyright 2021 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.
*/
/* MKBP info host command */
#include "common.h"
#include "console.h"
#include "ec_commands.h"
#include "host_command.h"
#include "keyboard_config.h"
#include "keyboard_mkbp.h"
#include "keyboard_scan.h"
#include "mkbp_input_devices.h"
#include "util.h"
static uint32_t get_supported_buttons(void)
{
uint32_t val = 0;
#ifdef CONFIG_VOLUME_BUTTONS
val |= BIT(EC_MKBP_VOL_UP) | BIT(EC_MKBP_VOL_DOWN);
#endif /* defined(CONFIG_VOLUME_BUTTONS) */
#ifdef CONFIG_DEDICATED_RECOVERY_BUTTON
val |= BIT(EC_MKBP_RECOVERY);
#endif /* defined(CONFIG_DEDICATED_RECOVERY_BUTTON) */
#ifdef CONFIG_POWER_BUTTON
val |= BIT(EC_MKBP_POWER_BUTTON);
#endif /* defined(CONFIG_POWER_BUTTON) */
return val;
}
static uint32_t get_supported_switches(void)
{
uint32_t val = 0;
#ifdef CONFIG_LID_SWITCH
val |= BIT(EC_MKBP_LID_OPEN);
#endif
#ifdef CONFIG_TABLET_MODE_SWITCH
val |= BIT(EC_MKBP_TABLET_MODE);
#endif
#ifdef CONFIG_BASE_ATTACHED_SWITCH
val |= BIT(EC_MKBP_BASE_ATTACHED);
#endif
#ifdef CONFIG_FRONT_PROXIMITY_SWITCH
val |= BIT(EC_MKBP_FRONT_PROXIMITY);
#endif
return val;
}
static enum ec_status mkbp_get_info(struct host_cmd_handler_args *args)
{
const struct ec_params_mkbp_info *p = args->params;
if (args->params_size == 0 || p->info_type == EC_MKBP_INFO_KBD) {
struct ec_response_mkbp_info *r = args->response;
#ifdef CONFIG_KEYBOARD_PROTOCOL_MKBP
/* Version 0 just returns info about the keyboard. */
r->rows = KEYBOARD_ROWS;
r->cols = KEYBOARD_COLS_MAX;
#else
r->rows = 0;
r->cols = 0;
#endif /* CONFIG_KEYBOARD_PROTOCOL_MKBP */
/* This used to be "switches" which was previously 0. */
r->reserved = 0;
args->response_size = sizeof(struct ec_response_mkbp_info);
} else {
union ec_response_get_next_data *r = args->response;
/* Version 1 (other than EC_MKBP_INFO_KBD) */
switch (p->info_type) {
case EC_MKBP_INFO_SUPPORTED:
switch (p->event_type) {
case EC_MKBP_EVENT_BUTTON:
r->buttons = get_supported_buttons();
args->response_size = sizeof(r->buttons);
break;
case EC_MKBP_EVENT_SWITCH:
r->switches = get_supported_switches();
args->response_size = sizeof(r->switches);
break;
default:
/* Don't care for now for other types. */
return EC_RES_INVALID_PARAM;
}
break;
case EC_MKBP_INFO_CURRENT:
switch (p->event_type) {
#ifdef HAS_TASK_KEYSCAN
case EC_MKBP_EVENT_KEY_MATRIX:
memcpy(r->key_matrix, keyboard_scan_get_state(),
sizeof(r->key_matrix));
args->response_size = sizeof(r->key_matrix);
break;
#endif
case EC_MKBP_EVENT_HOST_EVENT:
r->host_event = (uint32_t)host_get_events();
args->response_size = sizeof(r->host_event);
break;
#ifdef CONFIG_HOST_EVENT64
case EC_MKBP_EVENT_HOST_EVENT64:
r->host_event64 = host_get_events();
args->response_size = sizeof(r->host_event64);
break;
#endif
#ifdef CONFIG_MKBP_INPUT_DEVICES
case EC_MKBP_EVENT_BUTTON:
r->buttons = mkbp_get_button_state();
args->response_size = sizeof(r->buttons);
break;
case EC_MKBP_EVENT_SWITCH:
r->switches = mkbp_get_switch_state();
args->response_size = sizeof(r->switches);
break;
#endif /* CONFIG_MKBP_INPUT_DEVICES */
default:
/* Doesn't make sense for other event types. */
return EC_RES_INVALID_PARAM;
}
break;
default:
/* Unsupported query. */
return EC_RES_ERROR;
}
}
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_MKBP_INFO, mkbp_get_info,
EC_VER_MASK(0) | EC_VER_MASK(1));
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