coreboot-libre-fam15h-rdimm/3rdparty/chromeec/common/espi.c

68 lines
1.3 KiB
C

/* Copyright 2017 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.
*/
/* eSPI common functionality for Chrome EC */
#include "common.h"
#include "gpio.h"
#include "registers.h"
#include "espi.h"
#include "timer.h"
#include "util.h"
const char *espi_vw_names[] = {
"VW_SLP_S3_L",
"VW_SLP_S4_L",
"VW_SLP_S5_L",
"VW_SUS_STAT_L",
"VW_PLTRST_L",
"VW_OOB_RST_WARN",
"VW_OOB_RST_ACK",
"VW_WAKE_L",
"VW_PME_L",
"VW_ERROR_FATAL",
"VW_ERROR_NON_FATAL",
/* Merge bit 3/0 into one signal. Need to set them simultaneously */
"VW_SLAVE_BTLD_STATUS_DONE",
"VW_SCI_L",
"VW_SMI_L",
"VW_RCIN_L",
"VW_HOST_RST_ACK",
"VW_HOST_RST_WARN",
"VW_SUS_ACK",
"VW_SUS_WARN_L",
"VW_SUS_PWRDN_ACK_L",
"VW_SLP_A_L",
"VW_SLP_LAN",
"VW_SLP_WLAN",
};
BUILD_ASSERT(ARRAY_SIZE(espi_vw_names) == VW_SIGNAL_COUNT);
const char *espi_vw_get_wire_name(enum espi_vw_signal signal)
{
int idx;
if ((uint32_t)signal > VW_SIGNAL_BASE) {
idx = (uint32_t)signal - (VW_SIGNAL_BASE + 1);
if (idx < ARRAY_SIZE(espi_vw_names))
return espi_vw_names[idx];
}
return NULL;
}
int espi_signal_is_vw(int signal)
{
enum espi_vw_signal sig = (enum espi_vw_signal)signal;
if ((sig > VW_SIGNAL_BASE) && (sig < VW_SIGNAL_BASE_END))
return 1;
return 0;
}