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/*
ChibiOS - Copyright (C) 2006..2018 Isidoro Orabona.
This file is part of ChibiOS.
ChibiOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file chtssi.h
* @brief tssi module macros and structures.
*
* @addtogroup TSSI
* @{
*/
#ifndef CHTSSI_H
#define CHTSSI_H
#include "ch.h"
#include "ccportab.h"
/*===========================================================================*/
/* Module constants. */
/*===========================================================================*/
/* TSSI interface version. This code is returned also at run time by
calling the internal service TS_HND_VERSION.*/
#define TSSI_VERSION 0x01000000 /* 00 major, 000 minor, 000 build.*/
/* Service registry errors as returned by smc.*/
#define SMC_SVC_OK (int32_t)0 /* No error.*/
#define SMC_SVC_INTR (int32_t)-4 /* Service interrupted.*/
#define SMC_SVC_NOENT (int32_t)-2 /* No existent service.*/
#define SMC_SVC_INVALID (int32_t)-22 /* Invalid service
parameter(s).*/
#define SMC_SVC_BADH (int32_t)-9 /* Invalid service handle.*/
#define SMC_SVC_EXIST (int32_t)-17 /* Service already exists.*/
#define SMC_SVC_NHND (int32_t)-23 /* No more services or
service resources.*/
#define SMC_SVC_BUSY (int32_t)-16 /* Service busy.*/
/* Special trusted service handles.*/
#define TS_HND_TRAMP ((ts_state_t *)0) /* Trampoline service handle.*/
#define TS_HND_DISCOVERY ((ts_state_t *)1) /* Discovery service handle.*/
#define TS_HND_STQRY ((ts_state_t *)2) /* Query status service handle.*/
#define TS_HND_IDLE ((ts_state_t *)3) /* Idle service handle.*/
#define TS_HND_VERSION ((ts_state_t *)4) /* Get version service handle.*/
/* Fast call service bitmask.
Service handles that contain this mask access to
the fast call table.*/
#define TS_FASTCALL_MASK 0xFFFF0000
/* Services events event mask.*/
#define EVT_DAEMON_REQ_ATN EVENT_MASK(0)
/*===========================================================================*/
/* Module pre-compile time settings. */
/*===========================================================================*/
/**
* @name TSSI module settings.
* @{
*/
/**
* @brief Max number of services.
*/
#define TS_MAX_SVCS 64
/**
* @brief Max smc call timeout, in microseconds.
*/
#define TS_MAX_TMO 10000
/**
* @brief Secure and non secure memory address spaces.
*/
#if !defined(NSEC_MEMORY_START_ADDR)
#define NSEC_MEMORY_START_ADDR ((uint8_t *)0x20000000)
#endif
#if !defined(NSEC_MEMORY_EXE_OFFSET)
#define NSEC_MEMORY_EXE_OFFSET ((uint32_t) 0x00000000)
#endif
#if !defined(NSEC_MEMORY_END_ADDR)
#define NSEC_MEMORY_END_ADDR ((uint8_t *)0x27000000)
#endif
#if !defined(SEC_MEMORY_START_ADDR)
#define SEC_MEMORY_START_ADDR ((uint8_t *)0x27000000)
#endif
#if !defined(SEC_MEMORY_SIZE)
#define SEC_MEMORY_SIZE ((size_t)0x1000000)
#endif
/** @} */
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Module data structures and types. */
/*===========================================================================*/
typedef uint8_t * ts_params_area_t;
typedef struct tssi_service_state {
uint32_t ts_status;
thread_reference_t ts_thdp;
ts_params_area_t ts_datap;
uint32_t ts_datalen;
} ts_state_t;
/**
* @brief Fast call function.
*/
typedef msg_t (*fcfunc_t)(ts_params_area_t ts_datap, uint32_t ts_datalen);
/**
* @brief Type of a fast call descriptor.
*/
typedef struct {
/**
* @brief Fast call service name.
*/
const char *name;
/* The code identifying the service.
Used for checking purpose, it must correspond to the
order that the service lists in the descriptor table.*/
uint32_t code;
/**
* @brief Fast call function pointer.
*/
fcfunc_t funcp;
} fc_descriptor_t;
/*===========================================================================*/
/* Module macros. */
/*===========================================================================*/
/**
* @name Services tables definition macros.
* @{
*/
/**
* @brief Table of the runtime state of the services.
*/
#define TS_STATE_TABLE \
ts_state_t ts_state[TS_MAX_SVCS] = {0};
/**
* @brief Accessor to the runtime state of service i.
*/
#define TS_STATE(i) (&ts_state[i])
/**
* @brief Start of user service table.
*/
#define TS_CONF_TABLE_BEGIN \
const thread_descriptor_t ts_configs[TS_MAX_SVCS] = {
/**
* @brief Entry of user services table.
*/
#define TS_CONF_TABLE_ENTRY(name, wap, prio, funcp, tsstatep) \
{name, wap, ((stkalign_t *)(wap)) + (sizeof (wap) / sizeof(stkalign_t)), \
prio, funcp, tsstatep},
/**
* @brief End of user services table.
*/
#define TS_CONF_TABLE_END \
};
/**
* @brief Accessor to the service table entry i.
*/
#define TS_CONF_TABLE(i) (&ts_configs[i])
/**
* @brief Trusted services base prio.
*/
#define TS_BASE_PRIO (NORMALPRIO+1)
/**
* @brief Set the service status.
* @note The service sets the status at a value representing the status
* of the completion of the request. This value is
* service dependent.
*/
#define TS_SET_STATUS(svcp, newst) (((ts_state_t *)svcp)->ts_status = newst)
/**
* @brief Get the pointer to the client shared memory.
* @note The client sets the data field at the start address
* of a shared memory allocated from the non secure memory space.
*/
#define TS_GET_DATA(svcp) ((char *)((ts_state_t *)svcp)->ts_datap)
/**
* @brief Get the size of the client shared memory.
* @note The client sets the datalen field to the size
* of a shared memory allocated from the non secure memory space.
*/
#define TS_GET_DATALEN(svcp) (((ts_state_t *)svcp)->ts_datalen)
/** @} */
/**
* @name Fast call table definition macros.
* @note Fast call services run at max priority level, so it is
* mandatory that they last less time as possible.
* @note Fast call services should be invoked using
* the tsInvoke0 function in order to optimize the
* performances.
* @note Fast call services don't have a runtime state, so
* the response management is in charge to the higher levels.
* @{
*/
/**
* @brief Start of user fast call service table.
*/
#define TS_FC_CONF_TABLE_BEGIN \
const fc_descriptor_t ts_fc_configs[] = {
/**
* @brief Entry of user fast call services table.
*/
#define TS_FC_CONF_TABLE_ENTRY(name, code, funcp) \
{name, code, funcp},
/**
* @brief End of user fast call services table.
*/
#define TS_FC_CONF_TABLE_END \
};
/**
* @brief Accessor to the fast call service table entry i.
*/
#define TS_FC_CONF_TABLE(i) (&ts_fc_configs[i])
/**
* @brief Number of entries in the fast call service table.
*/
#define TS_FC_CONF_TABLE_N (sizeof ts_fc_configs / sizeof ts_fc_configs[0])
/** @} */
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
extern event_source_t tsEventSource;
extern ts_state_t ts_state[];
extern const thread_descriptor_t ts_configs[];
extern thread_reference_t _ns_thread;
CC_NO_RETURN void _ns_trampoline(uint8_t *addr);
CC_NO_RETURN void tssiInit(void);
msg_t tssiWaitRequest(ts_state_t *svcp);
bool tsIsAddrSpaceValid(void *addr, size_t size);
#ifdef __cplusplus
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#endif /* CHTSSI_H */
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