mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-27 02:04:55 +00:00
95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/* Copyright 2016 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 module for Chrome EC */
|
|
|
|
#ifndef __CROS_EC_ESPI_H
|
|
#define __CROS_EC_ESPI_H
|
|
|
|
#include "gpio_signal.h"
|
|
|
|
/* Signal through VW */
|
|
enum espi_vw_signal {
|
|
VW_SIGNAL_BASE = GPIO_COUNT,
|
|
VW_SLP_S3_L, /* index 02h (In) */
|
|
VW_SLP_S4_L,
|
|
VW_SLP_S5_L,
|
|
VW_SUS_STAT_L, /* index 03h (In) */
|
|
VW_PLTRST_L,
|
|
VW_OOB_RST_WARN,
|
|
VW_OOB_RST_ACK, /* index 04h (Out) */
|
|
VW_WAKE_L,
|
|
VW_PME_L,
|
|
VW_ERROR_FATAL, /* index 05h (Out) */
|
|
VW_ERROR_NON_FATAL,
|
|
/* Merge bit 3/0 into one signal. Need to set them simultaneously */
|
|
VW_SLAVE_BTLD_STATUS_DONE,
|
|
VW_SCI_L, /* index 06h (Out) */
|
|
VW_SMI_L,
|
|
VW_RCIN_L,
|
|
VW_HOST_RST_ACK,
|
|
VW_HOST_RST_WARN, /* index 07h (In) */
|
|
VW_SUS_ACK, /* index 40h (Out) */
|
|
VW_SUS_WARN_L, /* index 41h (In) */
|
|
VW_SUS_PWRDN_ACK_L,
|
|
VW_SLP_A_L,
|
|
VW_SLP_LAN, /* index 42h (In) */
|
|
VW_SLP_WLAN,
|
|
VW_SIGNAL_BASE_END,
|
|
};
|
|
|
|
#define VW_SIGNAL_COUNT (VW_SIGNAL_BASE_END - VW_SIGNAL_BASE - 1)
|
|
|
|
/**
|
|
* Set eSPI Virtual-Wire signal to Host
|
|
*
|
|
* @param signal vw signal needs to set
|
|
* @param level level of vw signal
|
|
* @return EC_SUCCESS, or non-zero if error.
|
|
*/
|
|
int espi_vw_set_wire(enum espi_vw_signal signal, uint8_t level);
|
|
|
|
/**
|
|
* Get eSPI Virtual-Wire signal from host
|
|
*
|
|
* @param signal vw signal needs to get
|
|
* @return 1: set by host, otherwise: no signal
|
|
*/
|
|
int espi_vw_get_wire(enum espi_vw_signal signal);
|
|
|
|
/**
|
|
* Enable VW interrupt of power sequence signal
|
|
*
|
|
* @param signal vw signal needs to enable interrupt
|
|
* @return EC_SUCCESS, or non-zero if error.
|
|
*/
|
|
int espi_vw_enable_wire_int(enum espi_vw_signal signal);
|
|
|
|
/**
|
|
* Disable VW interrupt of power sequence signal
|
|
*
|
|
* @param signal vw signal needs to disable interrupt
|
|
* @return EC_SUCCESS, or non-zero if error.
|
|
*/
|
|
int espi_vw_disable_wire_int(enum espi_vw_signal signal);
|
|
|
|
/**
|
|
* Return pointer to constant eSPI virtual wire signal name
|
|
*
|
|
* @param signal virtual wire enum
|
|
* @return pointer to string or NULL if signal out of range
|
|
*/
|
|
const char *espi_vw_get_wire_name(enum espi_vw_signal signal);
|
|
|
|
/**
|
|
* Check if signal is an eSPI virtual wire
|
|
* @param signal is gpio_signal or espi_vw_signal enum casted to int
|
|
* @return 1 if signal is virtual wire else returns 0.
|
|
*/
|
|
int espi_signal_is_vw(int signal);
|
|
|
|
|
|
#endif /* __CROS_EC_ESPI_H */
|