AMiRo-OS

/*

AMiRo-OS is an operating system designed for the Autonomous Mini Robot (AMiRo) platform.

Copyright (C) 2016..2018  Thomas Schöpping et al.

This program 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.

This program 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    aos_system.h

 * @brief   System macros and structures.

 *

 * @addtogroup aos_system

 * @{

 */

#ifndef _AMIROOS_SYSTEM_H_

#define _AMIROOS_SYSTEM_H_

#include <aos_iostream.h>

#include <amiro-lld.h>

#include <aos_shell.h>

#include <aos_time.h>

#include <chprintf.h>

/**

 * @brief   Resolution of the system time measurement.

 */

#define AOS_SYSTEM_TIME_RESOLUTION              ((MICROSECONDS_PER_SECOND + CH_CFG_ST_FREQUENCY - 1) / CH_CFG_ST_FREQUENCY)

/**

 * @brief   System event flag which is emitted when a shutdown was initiated.

 */

#define AOS_SYSTEM_EVENTFLAGS_SHUTDOWN          (eventflags_t)(1 << 0)

/**

 * @brief   System event flag which is emitted when a shutdown to transportation mode was initiated.

 */

#define AOS_SYSTEM_EVENTFLAGS_TRANSPORTATION    (AOS_SYSTEM_EVENTFLAGS_SHUTDOWN | (eventflags_t)(1 << 1))

/**

 * @brief   System event flag which is emitted when a shutdown to deepsleep mode was initiated.

 */

#define AOS_SYSTEM_EVENTFLAGS_DEEPSLEEP         (AOS_SYSTEM_EVENTFLAGS_SHUTDOWN | (eventflags_t)(1 << 2))

/**

 * @brief   System event flag which is emitted when a shutdown to hibernate mode was initiated.

 */

#define AOS_SYSTEM_EVENTFLAGS_HIBERNATE         (AOS_SYSTEM_EVENTFLAGS_SHUTDOWN | (eventflags_t)(1 << 3))

/**

 * @brief   System event flag which is emitted when a system restart was initiated.

 */

#define AOS_SYSTEM_EVENTFLAGS_RESTART           (AOS_SYSTEM_EVENTFLAGS_SHUTDOWN | (eventflags_t)(1 << 4))

/**

 * @brief   Major version of the implemented SSSP.

 */

#define AOS_SYSTEM_SSSP_VERSION_MAJOR           1

/**

 * @brief   Minor version of the implemented SSSP.

 */

#define AOS_SYSTEM_SSSP_VERSION_MINOR           4

/**

 * @brief   Timeout delay according to SSSP.

 * @details SSSP defines timeouts to be ten times longer than the signal delay time.

 */

#define AOS_SYSTEM_SSSP_TIMEOUT                 (10 * AMIROOS_CFG_SSSP_SIGNALDELAY)

/**

 * @brief   Enumerator to identify shutdown types.

 */

typedef enum aos_shutdown {

  AOS_SHUTDOWN_NONE,            /**< Default value if no shutdown action was initiated */

  AOS_SHUTDOWN_PASSIVE,         /**< Passive shutdown (initiated by another module). */

  AOS_SHUTDOWN_HIBERNATE,       /**< Active shutdown to hibernate mode. */

  AOS_SHUTDOWN_DEEPSLEEP,       /**< Active shutdown to deepsleep mode. */

  AOS_SHUTDOWN_TRANSPORTATION,  /**< Active shutdown to transportation mode. */

  AOS_SHUTDOWN_RESTART,         /**< Active saystem restart request. */

} aos_shutdown_t;

/**

 * @brief   Enumerator of the several stages of SSSP.

 */

typedef enum aos_ssspstage {

  AOS_SSSP_STARTUP_1_1  = 0x10, /**< Identifier of SSSP startup phase stage 1-1. */

  AOS_SSSP_STARTUP_1_2  = 0x11, /**< Identifier of SSSP startup phase stage 1-2. */

  AOS_SSSP_STARTUP_1_3  = 0x12, /**< Identifier of SSSP startup phase stage 1-3. */

  AOS_SSSP_STARTUP_2_1  = 0x14, /**< Identifier of SSSP startup phase stage 2-1. */

  AOS_SSSP_STARTUP_2_2  = 0x15, /**< Identifier of SSSP startup phase stage 2-2. */

  AOS_SSSP_STARTUP_3_1  = 0x18, /**< Identifier of SSSP startup phase stage 3-1. */

  AOS_SSSP_STARTUP_3_2  = 0x19, /**< Identifier of SSSP startup phase stage 3-2. */

  AOS_SSSP_STARTUP_3_3  = 0x1A, /**< Identifier of SSSP startup phase stage 3-3. */

  AOS_SSSP_STARTUP_3_4  = 0x1B, /**< Identifier of SSSP startup phase stage 3-4. */

  AOS_SSSP_OPERATION    = 0x20, /**< Identifier of SSSP operation pahse. */

  AOS_SSSP_SHUTDOWN_1_1 = 0x30, /**< Identifier of SSSP shutdown phase stage 1-1. */

  AOS_SSSP_SHUTDOWN_1_2 = 0x31, /**< Identifier of SSSP shutdown phase stage 1-2. */

  AOS_SSSP_SHUTDOWN_1_3 = 0x32, /**< Identifier of SSSP shutdown phase stage 1-3. */

  AOS_SSSP_SHUTDOWN_2_1 = 0x34, /**< Identifier of SSSP shutdown phase stage 2-1. */

  AOS_SSSP_SHUTDOWN_2_2 = 0x35, /**< Identifier of SSSP shutdown phase stage 2-2. */

  AOS_SSSP_SHUTDOWN_3   = 0x38, /**< Identifier of SSSP shutdown phase stage 3. */

} aos_ssspstage_t;

/**

 * @brief   Type to represent module IDs.

 */

typedef uint16_t aos_ssspmoduleid_t;

/**

 * @brief   AMiRo-OS base system structure.

 */

typedef struct aos_system {

  /**

   * @brief   SSSP relevant data.

   */

  struct {

    /**

     * @brief   Current SSSP stage of the system.

     */

    aos_ssspstage_t stage;

    /**

     * @brief   Module identifier.

     * @details A value of 0 indicates an uninitialized ID.

     *          The vlaues 0 and ~0 are reserved und must not be set.

     */

    aos_ssspmoduleid_t moduleId;

  } sssp;

  /**

   * @brief   System I/O stream.

   */

  AosIOStream iostream;

  /**

   * @brief   Event structure.

   */

  struct {

    /**

     * @brief   I/O event source.

     */

    event_source_t io;

    /**

     * @brief   OS event source.

     */

    event_source_t os;

  } events;

#if (AMIROOS_CFG_SHELL_ENABLE == true) || defined(__DOXYGEN__)

  /**

   * @brief   Pointer to the shell object.

   */

  aos_shell_t shell;

#endif

} aos_system_t;

/**

 * @brief   Global system object.

 */

extern aos_system_t aos;

/**

 * @brief   Printf function that uses the default system I/O stream.

 *

 * @param[in] fmt   Formatted string to print.

 */

#define aosprintf(fmt, ...)                     chprintf((BaseSequentialStream*)&aos.iostream, fmt, ##__VA_ARGS__)

#ifdef __cplusplus

extern "C" {

#endif

#if (AMIROOS_CFG_SHELL_ENABLE == true)

  void aosSysInit(const char* shellPrompt);

#else

  void aosSysInit(void);

#endif

  void aosSysStart(void);

  eventmask_t aosSysSsspStartupOsInitSyncCheck(event_listener_t* syncEvtListener);

  void aosSysGetUptimeX(aos_timestamp_t* ut);

  void aosSysGetDateTime(struct tm* dt);

  void aosSysSetDateTime(struct tm* dt);

  void aosSysShutdownInit(aos_shutdown_t shutdown);

  void aosSysStop(void);

  void aosSysDeinit(void);

  void aosSysShutdownFinal(aos_shutdown_t shutdown);

#ifdef __cplusplus

}

#endif

/**

 * @brief   Retrieves the system uptime.

 *

 * @param[out] ut   Pointer to the system uptime.

 */

static inline void aosSysGetUptime(aos_timestamp_t* ut)

{

  chSysLock();

  aosSysGetUptimeX(ut);

  chSysUnlock();

}

#endif /* _AMIROOS_SYSTEM_H_ */

/** @} */