*
* Event library (kernel space part)
*
- * @copyright Copyright (c) 2016-2019 TOYOTA MOTOR CORPORATION.
+ * @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License published
- * by the Free Software Foundation.
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* 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/>.
- *
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
-#include <generated/autoconf.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/version.h>
#include <linux/device.h>
#include <linux/cdev.h>
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
#ifndef STANDARD_INT_DEFINITIONS
#define STANDARD_INT_DEFINITIONS
typedef __u8 UINT8;
#define ENABLE_PROC_FS 1
-#include <agldd/evk_lib.h>
+#define EVK_NAME "evk"
+#define EVK_DEV_NAME "/dev/agl/"EVK_NAME
+#define EVK_DEV_MAJOR (1033 % 256)
+#define EVK_IOC_MAGIC 0xE7
+
+#define EVK_IOC_CREATE_FLAG _IO(EVK_IOC_MAGIC, 0x00)
+#define EVK_IOC_CREATE_FLAG64 _IO(EVK_IOC_MAGIC, 0x01)
+#define EVK_IOC_CREATE_MESSAGE_QUEUE _IO(EVK_IOC_MAGIC, 0x02)
+#define EVK_IOC_ALLOC_FLAG_ID _IO(EVK_IOC_MAGIC, 0x03)
+#define EVK_IOC_ALLOC_FLAG64_ID _IO(EVK_IOC_MAGIC, 0x04)
+#define EVK_IOC_ALLOC_QUEUE_ID _IO(EVK_IOC_MAGIC, 0x05)
+#define EVK_IOC_DESTROY_QUEUE _IO(EVK_IOC_MAGIC, 0x06)
+#define EVK_IOC_STORE_FLAG _IO(EVK_IOC_MAGIC, 0x07)
+#define EVK_IOC_STORE_FLAG64 _IO(EVK_IOC_MAGIC, 0x08)
+#define EVK_IOC_STORE_MESSAGE _IO(EVK_IOC_MAGIC, 0x09)
+#define EVK_IOC_SET_POLL _IO(EVK_IOC_MAGIC, 0x0a)
+#define EVK_IOC_GET_EVENT _IO(EVK_IOC_MAGIC, 0x0b)
+#define EVK_IOC_PEEK_EVENT _IO(EVK_IOC_MAGIC, 0x0c)
+#define EVK_IOC_WAIT_EVENT _IO(EVK_IOC_MAGIC, 0x0d)
+#define EVK_IOC_GET_NEXT_EVENT _IO(EVK_IOC_MAGIC, 0x0e)
+#define EVK_IOC_PEEK_NEXT_EVENT _IO(EVK_IOC_MAGIC, 0x0f)
+#define EVK_IOC_DEBUG_LIST _IO(EVK_IOC_MAGIC, 0x10)
+
+/** @brief Flag ID and queue ID types used when sending and receiving events
+ *
+ * Assign a 32-bit value as follows
+ *
+ * - Most significant 8 bits: Reserved
+ * - Next 16 bits: Modue ID
+ * - Lower 8 bits: Define in module
+ *
+ * Where module is the modules that creates the queue.
+ * The modules define ID according to the above assignments using EV_Flag_ID_Base and EV_Queue_ID_Base macros.
+ * @see EV_Flag_ID_Base
+ * @see EV_Queue_ID_Base
+ */
+typedef UINT32 EV_ID;
+
+#define EV_ID_BIT 0x80000000UL
+#define EV_FLAG64_BIT 0x40000000UL
+#define EV_FLAG_BIT 0x20000000UL
+#define EV_QUEUE_BIT 0x10000000UL
+#define EV_AUTO_ID_BIT 0x08000000UL
+#define EV_RESERVED_BIT 0xff000000UL
+#define EV_INVALID_ID EV_ID_BIT
+#define EV_NO_ID EV_INVALID_ID
+
+#define EV_ID_IS_FLAG(queueID) \
+ (((queueID) & (EV_ID_BIT|EV_FLAG_BIT)) == (EV_ID_BIT|EV_FLAG_BIT))
+#define EV_ID_IS_FLAG64(queueID) \
+ (((queueID) & (EV_ID_BIT|EV_FLAG64_BIT)) == (EV_ID_BIT|EV_FLAG64_BIT))
+#define EV_ID_IS_QUEUE(queueID) \
+ (((queueID) & (EV_ID_BIT|EV_QUEUE_BIT)) == (EV_ID_BIT|EV_QUEUE_BIT))
+#define EV_ID_IS_AUTO_ID(queueID) \
+ (((queueID) & (EV_ID_BIT|EV_AUTO_ID_BIT)) == (EV_ID_BIT|EV_AUTO_ID_BIT))
+#define EV_ID_IS_VALID(queueID) \
+ (EV_ID_IS_FLAG(queueID) || EV_ID_IS_FLAG64(queueID) || EV_ID_IS_QUEUE(queueID))
+
+/** @brief Macros for defining flag ID
+ *
+ * Define the module ID as an argument as follows.
+ * - #define XXX_Module_ID 1
+ * - #define XXX_Flag_ID_Base EV_Flag_ID_Base(XXX_Module_ID)
+ * -
+ * - #define XXX_Flag_foo (XXX_Flag_ID_Base + 1)
+ * - #define XXX_Flag_bar (XXX_Flag_ID_Base + 2)
+ *
+ * The module ID is 16 bits and 0 to 65535 can be specified.
+ * In addition, 0 to 255 added to Base can be defined as ID.
+ */
+#define EV_Flag_ID_Base(mod) (EV_ID_BIT|EV_FLAG_BIT|((mod)<<8))
+
+/** @brief Macros for defining 64 bits flag ID
+ *
+ * Define the module ID as an argument as follows.
+ * - #define XXX_Module_ID 1
+ * - #define XXX_Flag64_ID_Base EV_Flag64_ID_Base(XXX_Module_ID)
+ * -
+ * - #define XXX_Flag64_foo (XXX_Flag64_ID_Base + 1)
+ * - #define XXX_Flag64_bar (XXX_Flag64_ID_Base + 2)
+ *
+ * The module ID is 16 bits and 0 to 65535 can be specified.
+ * In addition, 0 to 255 added to Base can be defined as ID.
+ */
+#define EV_Flag64_ID_Base(mod) (EV_ID_BIT|EV_FLAG64_BIT|((mod)<<8))
+
+/** @brief Macros for defining mesage queue ID
+ *
+ * Define the module ID as an argument as follows.
+ * - #define XXX_Module_ID 1
+ * - #define XXX_Queue_ID_Base EV_Queue_ID_Base(XXX_Module_ID)
+ * -
+ * - #define XXX_Queue_foo (XXX_Queue_ID_Base + 1)
+ * - #define XXX_Queue_bar (XXX_Queue_ID_Base + 2)
+ *
+ * The module ID is 16 bits and 0 to 65535 can be specified.
+ * In addition, 0 to 255 added to Base can be defined as ID.
+ */
+#define EV_Queue_ID_Base(mod) (EV_ID_BIT|EV_QUEUE_BIT|((mod)<<8))
+
+/** @brief Maximum number of bytes for message event */
+#define EV_MAX_MESSAGE_LENGTH 2048
+
+/** @brief -Maximum number of flag queue that can be created within a thread */
+#define EV_MAX_IDS_IN_THREAD 24
+
+/** @brief -Muximum number of threads that can be registered to the EV in a process */
+#define EV_MAX_THREADS_IN_PROCESS 16
+
+/** @brief -Maximum number of flag queue that can be creat within a process
+ */
+#define EV_MAX_IDS_IN_PROCESS \
+ (EV_MAX_IDS_IN_THREAD * EV_MAX_THREADS_IN_PROCESS)
+
+/** @brief Return values for even library function
+ *
+ * @see EV_ERR
+ */
+enum ev_err
+{
+ EV_OK = 0, /**< Normal completion */
+ EV_ERR_Exist, /**< The specified flag message queue does exist */
+ EV_ERR_Invalid_ID, /**< The specified flag message queue does not exist */
+ EV_ERR_Busy, /**< Message queue full failed to send */
+ EV_ERR_Interrupted, /**< Waiting function was interrupted by an interrupt */
+ EV_ERR_Thread_Over, /**< Exceeding the number of threads in the process */
+ EV_ERR_Invalid_Thread, /**< Invalid thread ID */
+ EV_ERR_Fatal, /**< Fatal error */
+};
+/** @brief Return values type for even library function
+ *
+ * @see ev_err
+ */
+typedef INT32 EV_ERR;
+
+/** @brief Event type
+ *
+ * Use in the type of EV_Event structs
+ * @see ev_type
+ */
+typedef UINT32 EV_Type;
+
+/** @brief Bit value representing the type of event */
+enum ev_type {
+ EV_EVENT_None = 0x00000000,
+
+ /** Flag event: Judged by EV_EVENT_IS_FLAG() */
+ EV_EVENT_Flag = 0x0001,
+#define EV_EVENT_IS_FLAG(tp) (((tp) & EV_EVENT_Flag) != 0)
+
+ /** Message event: Judged by EV_EVENT_IS_MESSAGE() */
+ EV_EVENT_Message = 0x0002,
+#define EV_EVENT_IS_MESSAGE(tp) (((tp) & EV_EVENT_Message) != 0)
+
+ /** 64bit flag event: Judged by EV_EVENT_IS_FLAG64() */
+ EV_EVENT_Flag64 = 0x0003,
+#define EV_EVENT_IS_FLAG64(tp) (((tp) & EV_EVENT_Flag64) != 0)
+
+};
+
+/** @brief Flag event structure */
+typedef struct {
+ EV_ID flagID;/**< Flag ID */
+ UINT32 bits;/**< Bit pattern */
+} EV_Flag;
+
+/** @brief 64bit flag event structure */
+typedef struct {
+ EV_ID flagID;/**< Flag ID */
+ UINT64 bits;/**< Bit pattern */
+} EV_Flag64;
+
+/** @brief Message event structure */
+typedef struct {
+ EV_ID queueID;/**< queue ID */
+ UINT32 senderInfo;/**< Source information */
+ UINT32 length;/**< Number of bytes in the message */
+ UINT32 dummy;/** dummy for pading */
+ UINT8 message[EV_MAX_MESSAGE_LENGTH];/**< Message */
+} EV_Message;
+
+/** @brief Event structure */
+typedef struct {
+ EV_Type type; /**< Event type */
+ union {
+ EV_Flag flag; /**< Flag event structure */
+ EV_Flag64 flag64; /**< Flag event structure */
+ EV_Message message; /**< Message event structure */
+ } u; /**< Union of structures per eventtype */
+} EV_Event;
+
+/** @brief Message event queue type
+ *
+ * Specify the action to be taken when the queue overflows (more events are received when the queue is full).
+ */
+enum ev_message_queue_type {
+ EV_MESSAGE_QUEUE_TYPE_BUSY,/**< Return a BUSY to the source */
+ EV_MESSAGE_QUEUE_TYPE_FIFO,/**< Delete the oldest event */
+ EV_MESSAGE_QUEUE_TYPE_REPLACE,/**< Replace the most recent event */
+};
+
+/** @brief Messge event queue type
+ *
+ * @see ev_message_queue_type
+ */
+typedef UINT8 EV_Message_Queue_Type;
/** @addtogroup EV_in */
/** @{ */
/** @brief Number to be assigned in order of occurrence of the event */
static UINT32 sequence_number = 0;
+typedef struct {
+ EV_ID queueID;/**< Queue ID */
+ UINT32 max_bytes;/**< Maximum number of bytes for an event */
+ UINT8 length;/**< Queue length */
+ EV_Message_Queue_Type type;/**< Type */
+} EVK_Message_Queue_Request;
+
+typedef struct {
+ INT32 num; /**< Number of queue ID of search */
+ EV_ID ids[EV_MAX_IDS_IN_PROCESS]; /**< Queue ID of search */
+ EV_Event ev; /**< [OUT] First event that occured */
+} EVK_Next_Event_Query;
+
unsigned int
evk_get_queue_entry(struct list_head **entries)
{
Code Review / staging / basesystem.git / blobdiff