/* * Copyright (c) 2006-2024, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2007-01-10 Bernard the first version * 2008-07-12 Bernard remove all rt_int8, rt_uint32_t etc typedef * 2010-10-26 yi.qiu add module support * 2010-11-10 Bernard add cleanup callback function in thread exit. * 2011-05-09 Bernard use builtin va_arg in GCC 4.x * 2012-11-16 Bernard change RT_NULL from ((void*)0) to 0. * 2012-12-29 Bernard change the RT_USING_MEMPOOL location and add * RT_USING_MEMHEAP condition. * 2012-12-30 Bernard add more control command for graphic. * 2013-01-09 Bernard change version number. * 2015-02-01 Bernard change version number to v2.1.0 * 2017-08-31 Bernard change version number to v3.0.0 * 2017-11-30 Bernard change version number to v3.0.1 * 2017-12-27 Bernard change version number to v3.0.2 * 2018-02-24 Bernard change version number to v3.0.3 * 2018-04-25 Bernard change version number to v3.0.4 * 2018-05-31 Bernard change version number to v3.1.0 * 2018-09-04 Bernard change version number to v3.1.1 * 2018-09-14 Bernard apply Apache License v2.0 to RT-Thread Kernel * 2018-10-13 Bernard change version number to v4.0.0 * 2018-10-02 Bernard add 64bit arch support * 2018-11-22 Jesven add smp member to struct rt_thread * add struct rt_cpu * add smp relevant macros * 2019-01-27 Bernard change version number to v4.0.1 * 2019-05-17 Bernard change version number to v4.0.2 * 2019-12-20 Bernard change version number to v4.0.3 * 2020-08-10 Meco Man add macro for struct rt_device_ops * 2020-10-23 Meco Man define maximum value of ipc type * 2021-03-19 Meco Man add security devices * 2021-05-10 armink change version number to v4.0.4 * 2021-11-19 Meco Man change version number to v4.1.0 * 2021-12-21 Meco Man re-implement RT_UNUSED * 2022-01-01 Gabriel improve hooking method * 2022-01-07 Gabriel move some __on_rt_xxxxx_hook to dedicated c source files * 2022-01-12 Meco Man remove RT_THREAD_BLOCK * 2022-04-20 Meco Man change version number to v4.1.1 * 2022-04-21 THEWON add macro RT_VERSION_CHECK * 2022-06-29 Meco Man add RT_USING_LIBC and standard libc headers * 2022-08-16 Meco Man change version number to v5.0.0 * 2022-09-12 Meco Man define rt_ssize_t * 2022-12-20 Meco Man add const name for rt_object * 2023-04-01 Chushicheng change version number to v5.0.1 * 2023-05-20 Bernard add stdc atomic detection. * 2023-09-15 xqyjlj perf rt_hw_interrupt_disable/enable * 2023-10-10 Chushicheng change version number to v5.1.0 * 2023-10-11 zmshahaha move specific devices related and driver to components/drivers * 2023-11-21 Meco Man add RT_USING_NANO macro * 2023-11-17 xqyjlj add process group and session support * 2023-12-01 Shell Support of dynamic device * 2023-12-18 xqyjlj add rt_always_inline * 2023-12-22 Shell Support hook list * 2024-01-18 Shell Seperate basical types to a rttypes.h * Seperate the compiler portings to rtcompiler.h * 2024-03-30 Meco Man update version number to v5.2.0 */ #ifndef __RT_DEF_H__ #define __RT_DEF_H__ #include "rtsched.h" #include "rttypes.h" #ifdef __cplusplus extern "C" { #endif /** * @addtogroup BasicDef */ /**@{*/ /* RT-Thread version information */ #define RT_VERSION_MAJOR 5 /**< Major version number (X.x.x) */ #define RT_VERSION_MINOR 2 /**< Minor version number (x.X.x) */ #define RT_VERSION_PATCH 0 /**< Patch version number (x.x.X) */ /* e.g. #if (RTTHREAD_VERSION >= RT_VERSION_CHECK(4, 1, 0) */ #define RT_VERSION_CHECK(major, minor, revise) ((major * 10000) + (minor * 100) + revise) /* RT-Thread version */ #define RTTHREAD_VERSION RT_VERSION_CHECK(RT_VERSION_MAJOR, RT_VERSION_MINOR, RT_VERSION_PATCH) /**@}*/ /* maximum value of base type */ #ifdef RT_USING_LIBC #define RT_UINT8_MAX UINT8_MAX /**< Maximum number of UINT8 */ #define RT_UINT16_MAX UINT16_MAX /**< Maximum number of UINT16 */ #define RT_UINT32_MAX UINT32_MAX /**< Maximum number of UINT32 */ #define RT_UINT64_MAX UINT64_MAX /**< Maximum number of UINT64 */ #else #define RT_UINT8_MAX 0xff /**< Maximum number of UINT8 */ #define RT_UINT16_MAX 0xffff /**< Maximum number of UINT16 */ #define RT_UINT32_MAX 0xffffffff /**< Maximum number of UINT32 */ #define RT_UINT64_MAX 0xffffffffffffffff #endif /* RT_USING_LIBC */ #define RT_TICK_MAX RT_UINT32_MAX /**< Maximum number of tick */ /* maximum value of ipc type */ #define RT_SEM_VALUE_MAX RT_UINT16_MAX /**< Maximum number of semaphore .value */ #define RT_MUTEX_VALUE_MAX RT_UINT16_MAX /**< Maximum number of mutex .value */ #define RT_MUTEX_HOLD_MAX RT_UINT8_MAX /**< Maximum number of mutex .hold */ #define RT_MB_ENTRY_MAX RT_UINT16_MAX /**< Maximum number of mailbox .entry */ #define RT_MQ_ENTRY_MAX RT_UINT16_MAX /**< Maximum number of message queue .entry */ /* Common Utilities */ #define RT_UNUSED(x) ((void)x) /* compile time assertion */ #define RT_STATIC_ASSERT(name, expn) typedef char _static_assert_##name[(expn)?1:-1] /* Compiler Related Definitions */ #include "rtcompiler.h" /* initialization export */ #ifdef RT_USING_COMPONENTS_INIT typedef int (*init_fn_t)(void); #ifdef _MSC_VER #pragma section("rti_fn$f",read) #ifdef RT_DEBUGING_AUTO_INIT struct rt_init_desc { const char* level; const init_fn_t fn; const char* fn_name; }; #define INIT_EXPORT(fn, level) \ const char __rti_level_##fn[] = ".rti_fn." level; \ const char __rti_##fn##_name[] = #fn; \ __declspec(allocate("rti_fn$f")) \ rt_used const struct rt_init_desc __rt_init_msc_##fn = \ {__rti_level_##fn, fn, __rti_##fn##_name}; #else struct rt_init_desc { const char* level; const init_fn_t fn; }; #define INIT_EXPORT(fn, level) \ const char __rti_level_##fn[] = ".rti_fn." level; \ __declspec(allocate("rti_fn$f")) \ rt_used const struct rt_init_desc __rt_init_msc_##fn = \ {__rti_level_##fn, fn }; #endif /* RT_DEBUGING_AUTO_INIT */ #else #ifdef RT_DEBUGING_AUTO_INIT struct rt_init_desc { const char* fn_name; const init_fn_t fn; }; #define INIT_EXPORT(fn, level) \ const char __rti_##fn##_name[] = #fn; \ rt_used const struct rt_init_desc __rt_init_desc_##fn rt_section(".rti_fn." level) = \ { __rti_##fn##_name, fn}; #else #define INIT_EXPORT(fn, level) \ rt_used const init_fn_t __rt_init_##fn rt_section(".rti_fn." level) = fn #endif /* RT_DEBUGING_AUTO_INIT */ #endif /* _MSC_VER */ #else #define INIT_EXPORT(fn, level) #endif /* RT_USING_COMPONENTS_INIT */ /* board init routines will be called in board_init() function */ #define INIT_BOARD_EXPORT(fn) INIT_EXPORT(fn, "1") /* init cpu, memory, interrupt-controller, bus... */ #define INIT_CORE_EXPORT(fn) INIT_EXPORT(fn, "1.0") /* init pci/pcie, usb platform driver... */ #define INIT_FRAMEWORK_EXPORT(fn) INIT_EXPORT(fn, "1.1") /* init platform, user code... */ #define INIT_PLATFORM_EXPORT(fn) INIT_EXPORT(fn, "1.2") /* init sys-timer, clk, pinctrl... */ #define INIT_SUBSYS_EARLY_EXPORT(fn) INIT_EXPORT(fn, "1.3.0") #define INIT_SUBSYS_EXPORT(fn) INIT_EXPORT(fn, "1.3.1") /* init early drivers */ #define INIT_DRIVER_EARLY_EXPORT(fn) INIT_EXPORT(fn, "1.4") /* pre/device/component/env/app init routines will be called in init_thread */ /* components pre-initialization (pure software initialization) */ #define INIT_PREV_EXPORT(fn) INIT_EXPORT(fn, "2") /* device initialization */ #define INIT_DEVICE_EXPORT(fn) INIT_EXPORT(fn, "3") /* components initialization (dfs, lwip, ...) */ #define INIT_COMPONENT_EXPORT(fn) INIT_EXPORT(fn, "4") /* environment initialization (mount disk, ...) */ #define INIT_ENV_EXPORT(fn) INIT_EXPORT(fn, "5") /* application initialization (rtgui application etc ...) */ #define INIT_APP_EXPORT(fn) INIT_EXPORT(fn, "6") /* init after mount fs */ #define INIT_FS_EXPORT(fn) INIT_EXPORT(fn, "6.0") /* init in secondary_cpu_c_start */ #define INIT_SECONDARY_CPU_EXPORT(fn) INIT_EXPORT(fn, "7") #if !defined(RT_USING_FINSH) /* define these to empty, even if not include finsh.h file */ #define FINSH_FUNCTION_EXPORT(name, desc) #define FINSH_FUNCTION_EXPORT_ALIAS(name, alias, desc) #define MSH_CMD_EXPORT(command, desc) #define MSH_CMD_EXPORT_ALIAS(command, alias, desc) #elif !defined(FINSH_USING_SYMTAB) #define FINSH_FUNCTION_EXPORT_CMD(name, cmd, desc) #endif /* event length */ #define RT_EVENT_LENGTH 32 /* memory management option */ #define RT_MM_PAGE_SIZE 4096 #define RT_MM_PAGE_MASK (RT_MM_PAGE_SIZE - 1) #define RT_MM_PAGE_BITS 12 /* kernel malloc definitions */ #ifndef RT_KERNEL_MALLOC #define RT_KERNEL_MALLOC(sz) rt_malloc(sz) #endif /* RT_KERNEL_MALLOC */ #ifndef RT_KERNEL_FREE #define RT_KERNEL_FREE(ptr) rt_free(ptr) #endif /* RT_KERNEL_FREE */ #ifndef RT_KERNEL_REALLOC #define RT_KERNEL_REALLOC(ptr, size) rt_realloc(ptr, size) #endif /* RT_KERNEL_REALLOC */ /** * @addtogroup Error */ /**@{*/ /* RT-Thread error code definitions */ #if defined(RT_USING_LIBC) && !defined(RT_USING_NANO) /* POSIX error code compatible */ #define RT_EOK 0 /**< There is no error */ #define RT_ERROR 255 /**< A generic/unknown error happens */ #define RT_ETIMEOUT ETIMEDOUT /**< Timed out */ #define RT_EFULL ENOSPC /**< The resource is full */ #define RT_EEMPTY ENODATA /**< The resource is empty */ #define RT_ENOMEM ENOMEM /**< No memory */ #define RT_ENOSYS ENOSYS /**< Function not implemented */ #define RT_EBUSY EBUSY /**< Busy */ #define RT_EIO EIO /**< IO error */ #define RT_EINTR EINTR /**< Interrupted system call */ #define RT_EINVAL EINVAL /**< Invalid argument */ #define RT_ENOENT ENOENT /**< No entry */ #define RT_ENOSPC ENOSPC /**< No space left */ #define RT_EPERM EPERM /**< Operation not permitted */ #define RT_EFAULT EFAULT /**< Bad address */ #define RT_ENOBUFS ENOBUFS /**< No buffer space is available */ #define RT_ESCHEDISR 253 /**< scheduler failure in isr context */ #define RT_ESCHEDLOCKED 252 /**< scheduler failure in critical region */ #define RT_ETRAP 254 /**< Trap event */ #else #define RT_EOK 0 /**< There is no error */ #define RT_ERROR 1 /**< A generic/unknown error happens */ #define RT_ETIMEOUT 2 /**< Timed out */ #define RT_EFULL 3 /**< The resource is full */ #define RT_EEMPTY 4 /**< The resource is empty */ #define RT_ENOMEM 5 /**< No memory */ #define RT_ENOSYS 6 /**< Function not implemented */ #define RT_EBUSY 7 /**< Busy */ #define RT_EIO 8 /**< IO error */ #define RT_EINTR 9 /**< Interrupted system call */ #define RT_EINVAL 10 /**< Invalid argument */ #define RT_ENOENT 11 /**< No entry */ #define RT_ENOSPC 12 /**< No space left */ #define RT_EPERM 13 /**< Operation not permitted */ #define RT_ETRAP 14 /**< Trap event */ #define RT_EFAULT 15 /**< Bad address */ #define RT_ENOBUFS 16 /**< No buffer space is available */ #define RT_ESCHEDISR 17 /**< scheduler failure in isr context */ #define RT_ESCHEDLOCKED 18 /**< scheduler failure in critical region */ #endif /* defined(RT_USING_LIBC) && !defined(RT_USING_NANO) */ /**@}*/ /** * @ingroup BasicDef * * @def RT_IS_ALIGN(addr, align) * Return true(1) or false(0). * RT_IS_ALIGN(128, 4) is judging whether 128 aligns with 4. * The result is 1, which means 128 aligns with 4. * @note If the address is NULL, false(0) will be returned */ #define RT_IS_ALIGN(addr, align) ((!(addr & (align - 1))) && (addr != RT_NULL)) /** * @ingroup BasicDef * * @def RT_ALIGN(size, align) * Return the most contiguous size aligned at specified width. RT_ALIGN(13, 4) * would return 16. */ #define RT_ALIGN(size, align) (((size) + (align) - 1) & ~((align) - 1)) /** * @ingroup BasicDef * * @def RT_ALIGN_DOWN(size, align) * Return the down number of aligned at specified width. RT_ALIGN_DOWN(13, 4) * would return 12. */ #define RT_ALIGN_DOWN(size, align) ((size) & ~((align) - 1)) /** * @addtogroup KernelObject */ /**@{*/ /* * kernel object macros */ #define RT_OBJECT_FLAG_MODULE 0x80 /**< is module object. */ /** * Base structure of Kernel object */ struct rt_object { #if RT_NAME_MAX > 0 char name[RT_NAME_MAX]; /**< dynamic name of kernel object */ #else const char *name; /**< static name of kernel object */ #endif /* RT_NAME_MAX > 0 */ rt_uint8_t type; /**< type of kernel object */ rt_uint8_t flag; /**< flag of kernel object */ #ifdef RT_USING_MODULE void * module_id; /**< id of application module */ #endif /* RT_USING_MODULE */ #ifdef RT_USING_SMART rt_atomic_t lwp_ref_count; /**< ref count for lwp */ #endif /* RT_USING_SMART */ rt_list_t list; /**< list node of kernel object */ }; typedef struct rt_object *rt_object_t; /**< Type for kernel objects. */ /** * The object type can be one of the follows with specific * macros enabled: * - Thread * - Semaphore * - Mutex * - Event * - MailBox * - MessageQueue * - MemHeap * - MemPool * - Device * - Timer * - Module * - Unknown * - Static */ enum rt_object_class_type { RT_Object_Class_Null = 0x00, /**< The object is not used. */ RT_Object_Class_Thread = 0x01, /**< The object is a thread. */ RT_Object_Class_Semaphore = 0x02, /**< The object is a semaphore. */ RT_Object_Class_Mutex = 0x03, /**< The object is a mutex. */ RT_Object_Class_Event = 0x04, /**< The object is a event. */ RT_Object_Class_MailBox = 0x05, /**< The object is a mail box. */ RT_Object_Class_MessageQueue = 0x06, /**< The object is a message queue. */ RT_Object_Class_MemHeap = 0x07, /**< The object is a memory heap. */ RT_Object_Class_MemPool = 0x08, /**< The object is a memory pool. */ RT_Object_Class_Device = 0x09, /**< The object is a device. */ RT_Object_Class_Timer = 0x0a, /**< The object is a timer. */ RT_Object_Class_Module = 0x0b, /**< The object is a module. */ RT_Object_Class_Memory = 0x0c, /**< The object is a memory. */ RT_Object_Class_Channel = 0x0d, /**< The object is a channel */ RT_Object_Class_ProcessGroup = 0x0e, /**< The object is a process group */ RT_Object_Class_Session = 0x0f, /**< The object is a session */ RT_Object_Class_Custom = 0x10, /**< The object is a custom object */ RT_Object_Class_Unknown = 0x11, /**< The object is unknown. */ RT_Object_Class_Static = 0x80 /**< The object is a static object. */ }; /** * The information of the kernel object */ struct rt_object_information { enum rt_object_class_type type; /**< object class type */ rt_list_t object_list; /**< object list */ rt_size_t object_size; /**< object size */ struct rt_spinlock spinlock; }; /** * The hook function call macro */ #ifndef RT_USING_HOOK #define RT_OBJECT_HOOK_CALL(func, argv) #else /** * @brief Add hook point in the routines * @note Usage: * void foo() { * do_something(); * * RT_OBJECT_HOOK_CALL(foo); * * do_other_things(); * } */ #define _RT_OBJECT_HOOK_CALL(func, argv) __ON_HOOK_ARGS(func, argv) #define RT_OBJECT_HOOK_CALL(func, argv) _RT_OBJECT_HOOK_CALL(func, argv) #ifdef RT_HOOK_USING_FUNC_PTR #define __ON_HOOK_ARGS(__hook, argv) do {if ((__hook) != RT_NULL) __hook argv; } while (0) #else #define __ON_HOOK_ARGS(__hook, argv) #endif /* RT_HOOK_USING_FUNC_PTR */ #endif /* RT_USING_HOOK */ #ifdef RT_USING_HOOKLIST /** * @brief Add declaration for hook list types. * * @note Usage: * This is typically used in your header. In foo.h using this like: * * ```foo.h * typedef void (*bar_hook_proto_t)(arguments...); * RT_OBJECT_HOOKLIST_DECLARE(bar_hook_proto_t, bar_myhook); * ``` */ #define RT_OBJECT_HOOKLIST_DECLARE(handler_type, name) \ typedef struct name##_hooklistnode \ { \ handler_type handler; \ rt_list_t list_node; \ } *name##_hooklistnode_t; \ extern volatile rt_ubase_t name##_nested; \ void name##_sethook(name##_hooklistnode_t node); \ void name##_rmhook(name##_hooklistnode_t node) /** * @brief Add declaration for hook list node. * * @note Usage * You can add a hook like this. * * ```addhook.c * void myhook(arguments...) { do_something(); } * RT_OBJECT_HOOKLIST_DEFINE_NODE(bar_myhook, myhook_node, myhook); * * void addhook(void) * { * bar_myhook_sethook(myhook); * } * ``` * * BTW, you can also find examples codes under * `examples/utest/testcases/kernel/hooklist_tc.c`. */ #define RT_OBJECT_HOOKLIST_DEFINE_NODE(hookname, nodename, hooker_handler) \ struct hookname##_hooklistnode nodename = { \ .handler = hooker_handler, \ .list_node = RT_LIST_OBJECT_INIT(nodename.list_node), \ }; /** * @note Usage * Add this macro to the source file where your hook point is inserted. */ #define RT_OBJECT_HOOKLIST_DEFINE(name) \ static rt_list_t name##_hooklist = RT_LIST_OBJECT_INIT(name##_hooklist); \ static struct rt_spinlock name##lock = RT_SPINLOCK_INIT; \ volatile rt_ubase_t name##_nested = 0; \ void name##_sethook(name##_hooklistnode_t node) \ { \ rt_ubase_t level = rt_spin_lock_irqsave(&name##lock); \ while (name##_nested) \ { \ rt_spin_unlock_irqrestore(&name##lock, level); \ level = rt_spin_lock_irqsave(&name##lock); \ } \ rt_list_insert_before(&name##_hooklist, &node->list_node); \ rt_spin_unlock_irqrestore(&name##lock, level); \ } \ void name##_rmhook(name##_hooklistnode_t node) \ { \ rt_ubase_t level = rt_spin_lock_irqsave(&name##lock); \ while (name##_nested) \ { \ rt_spin_unlock_irqrestore(&name##lock, level); \ level = rt_spin_lock_irqsave(&name##lock); \ } \ rt_list_remove(&node->list_node); \ rt_spin_unlock_irqrestore(&name##lock, level); \ } /** * @brief Add hook list point in the routines. Multiple hookers in the list will * be called one by one starting from head node. * * @note Usage: * void foo() { * do_something(); * * RT_OBJECT_HOOKLIST_CALL(foo); * * do_other_things(); * } */ #define _RT_OBJECT_HOOKLIST_CALL(nodetype, nested, list, lock, argv) \ do \ { \ nodetype iter, next; \ rt_ubase_t level = rt_spin_lock_irqsave(&lock); \ nested += 1; \ rt_spin_unlock_irqrestore(&lock, level); \ if (!rt_list_isempty(&list)) \ { \ rt_list_for_each_entry_safe(iter, next, &list, list_node) \ { \ iter->handler argv; \ } \ } \ level = rt_spin_lock_irqsave(&lock); \ nested -= 1; \ rt_spin_unlock_irqrestore(&lock, level); \ } while (0) #define RT_OBJECT_HOOKLIST_CALL(name, argv) \ _RT_OBJECT_HOOKLIST_CALL(name##_hooklistnode_t, name##_nested, \ name##_hooklist, name##lock, argv) #else #define RT_OBJECT_HOOKLIST_DECLARE(handler_type, name) #define RT_OBJECT_HOOKLIST_DEFINE_NODE(hookname, nodename, hooker_handler) #define RT_OBJECT_HOOKLIST_DEFINE(name) #define RT_OBJECT_HOOKLIST_CALL(name, argv) #endif /* RT_USING_HOOKLIST */ /**@}*/ /** * @addtogroup Clock */ /**@{*/ /** * clock & timer macros */ #define RT_TIMER_FLAG_DEACTIVATED 0x0 /**< timer is deactive */ #define RT_TIMER_FLAG_ACTIVATED 0x1 /**< timer is active */ #define RT_TIMER_FLAG_PROCESSING 0x2 /**< timer's timeout fuction is processing */ #define RT_TIMER_FLAG_ONE_SHOT 0x0 /**< one shot timer */ #define RT_TIMER_FLAG_PERIODIC 0x4 /**< periodic timer */ #define RT_TIMER_FLAG_HARD_TIMER 0x0 /**< hard timer,the timer's callback function will be called in tick isr. */ #define RT_TIMER_FLAG_SOFT_TIMER 0x8 /**< soft timer,the timer's callback function will be called in timer thread. */ #define RT_TIMER_FLAG_THREAD_TIMER \ (0x10 | RT_TIMER_FLAG_HARD_TIMER) /**< thread timer that cooperates with scheduler directly */ #define RT_TIMER_CTRL_SET_TIME 0x0 /**< set timer control command */ #define RT_TIMER_CTRL_GET_TIME 0x1 /**< get timer control command */ #define RT_TIMER_CTRL_SET_ONESHOT 0x2 /**< change timer to one shot */ #define RT_TIMER_CTRL_SET_PERIODIC 0x3 /**< change timer to periodic */ #define RT_TIMER_CTRL_GET_STATE 0x4 /**< get timer run state active or deactive*/ #define RT_TIMER_CTRL_GET_REMAIN_TIME 0x5 /**< get the remaining hang time */ #define RT_TIMER_CTRL_GET_FUNC 0x6 /**< get timer timeout func */ #define RT_TIMER_CTRL_SET_FUNC 0x7 /**< set timer timeout func */ #define RT_TIMER_CTRL_GET_PARM 0x8 /**< get timer parameter */ #define RT_TIMER_CTRL_SET_PARM 0x9 /**< get timer parameter */ #ifndef RT_TIMER_SKIP_LIST_LEVEL #define RT_TIMER_SKIP_LIST_LEVEL 1 #endif /* 1 or 3 */ #ifndef RT_TIMER_SKIP_LIST_MASK #define RT_TIMER_SKIP_LIST_MASK 0x3 /**< Timer skips the list mask */ #endif /** * timeout handler of rt_timer */ typedef void (*rt_timer_func_t)(void *parameter); /** * timer structure */ struct rt_timer { struct rt_object parent; /**< inherit from rt_object */ rt_list_t row[RT_TIMER_SKIP_LIST_LEVEL]; rt_timer_func_t timeout_func; /**< timeout function */ void *parameter; /**< timeout function's parameter */ rt_tick_t init_tick; /**< timer timeout tick */ rt_tick_t timeout_tick; /**< timeout tick */ }; typedef struct rt_timer *rt_timer_t; /**@}*/ /** * @addtogroup Signal */ /**@{*/ #ifdef RT_USING_SIGNALS #define RT_SIG_MAX 32 typedef unsigned long rt_sigset_t; typedef siginfo_t rt_siginfo_t; typedef void (*rt_sighandler_t)(int signo); #endif /* RT_USING_SIGNALS */ /**@}*/ /** * @addtogroup Thread */ /**@{*/ /* * Thread */ /* * thread state definitions */ #define RT_THREAD_INIT 0x00 /**< Initialized status */ #define RT_THREAD_CLOSE 0x01 /**< Closed status */ #define RT_THREAD_READY 0x02 /**< Ready status */ #define RT_THREAD_RUNNING 0x03 /**< Running status */ /* * for rt_thread_suspend_with_flag() */ enum { RT_INTERRUPTIBLE = 0, RT_KILLABLE, RT_UNINTERRUPTIBLE, }; #define RT_THREAD_SUSPEND_MASK 0x04 #define RT_SIGNAL_COMMON_WAKEUP_MASK 0x02 #define RT_SIGNAL_KILL_WAKEUP_MASK 0x01 #define RT_THREAD_SUSPEND_INTERRUPTIBLE (RT_THREAD_SUSPEND_MASK) /**< Suspend interruptable 0x4 */ #define RT_THREAD_SUSPEND RT_THREAD_SUSPEND_INTERRUPTIBLE #define RT_THREAD_SUSPEND_KILLABLE (RT_THREAD_SUSPEND_MASK | RT_SIGNAL_COMMON_WAKEUP_MASK) /**< Suspend with killable 0x6 */ #define RT_THREAD_SUSPEND_UNINTERRUPTIBLE (RT_THREAD_SUSPEND_MASK | RT_SIGNAL_COMMON_WAKEUP_MASK | RT_SIGNAL_KILL_WAKEUP_MASK) /**< Suspend with uninterruptable 0x7 */ #define RT_THREAD_STAT_MASK 0x07 #define RT_THREAD_STAT_YIELD 0x08 /**< indicate whether remaining_tick has been reloaded since last schedule */ #define RT_THREAD_STAT_YIELD_MASK RT_THREAD_STAT_YIELD #define RT_THREAD_STAT_SIGNAL 0x10 /**< task hold signals */ #define RT_THREAD_STAT_SIGNAL_READY (RT_THREAD_STAT_SIGNAL | RT_THREAD_READY) #define RT_THREAD_STAT_SIGNAL_WAIT 0x20 /**< task is waiting for signals */ #define RT_THREAD_STAT_SIGNAL_PENDING 0x40 /**< signals is held and it has not been procressed */ #define RT_THREAD_STAT_SIGNAL_MASK 0xf0 /** * thread control command definitions */ #define RT_THREAD_CTRL_STARTUP 0x00 /**< Startup thread. */ #define RT_THREAD_CTRL_CLOSE 0x01 /**< Close thread. */ #define RT_THREAD_CTRL_CHANGE_PRIORITY 0x02 /**< Change thread priority. */ #define RT_THREAD_CTRL_INFO 0x03 /**< Get thread information. */ #define RT_THREAD_CTRL_BIND_CPU 0x04 /**< Set thread bind cpu. */ #ifdef RT_USING_SMP #define RT_CPU_DETACHED RT_CPUS_NR /**< The thread not running on cpu. */ #define RT_CPU_MASK ((1 << RT_CPUS_NR) - 1) /**< All CPUs mask bit. */ #ifndef RT_SCHEDULE_IPI #define RT_SCHEDULE_IPI 0 #endif /* RT_SCHEDULE_IPI */ #ifndef RT_STOP_IPI #define RT_STOP_IPI 1 #endif /* RT_STOP_IPI */ struct rt_cpu_usage_stats { rt_uint64_t user; rt_uint64_t system; rt_uint64_t irq; rt_uint64_t idle; }; typedef struct rt_cpu_usage_stats *rt_cpu_usage_stats_t; #define _SCHEDULER_CONTEXT(fileds) fileds /** * CPUs definitions * */ struct rt_cpu { /** * protected by: * - other cores: accessing from other coress is undefined behaviour * - local core: rt_enter_critical()/rt_exit_critical() */ _SCHEDULER_CONTEXT( struct rt_thread *current_thread; rt_uint8_t irq_switch_flag:1; rt_uint8_t critical_switch_flag:1; rt_uint8_t sched_lock_flag:1; rt_uint8_t current_priority; rt_list_t priority_table[RT_THREAD_PRIORITY_MAX]; #if RT_THREAD_PRIORITY_MAX > 32 rt_uint32_t priority_group; rt_uint8_t ready_table[32]; #else rt_uint32_t priority_group; #endif /* RT_THREAD_PRIORITY_MAX > 32 */ rt_atomic_t tick; /**< Passing tickes on this core */ ); struct rt_thread *idle_thread; rt_atomic_t irq_nest; #ifdef RT_USING_SMART struct rt_spinlock spinlock; struct rt_cpu_usage_stats cpu_stat; #endif }; typedef struct rt_cpu *rt_cpu_t; #endif /* RT_USING_SMP */ struct rt_thread; #ifdef RT_USING_SMART typedef rt_err_t (*rt_wakeup_func_t)(void *object, struct rt_thread *thread); struct rt_wakeup { rt_wakeup_func_t func; void *user_data; }; #define _LWP_NSIG 64 #ifdef ARCH_CPU_64BIT #define _LWP_NSIG_BPW 64 #else #define _LWP_NSIG_BPW 32 #endif #define _LWP_NSIG_WORDS (RT_ALIGN(_LWP_NSIG, _LWP_NSIG_BPW) / _LWP_NSIG_BPW) typedef void (*lwp_sighandler_t)(int); typedef void (*lwp_sigaction_t)(int signo, siginfo_t *info, void *context); typedef struct { unsigned long sig[_LWP_NSIG_WORDS]; } lwp_sigset_t; #if _LWP_NSIG <= 64 #define lwp_sigmask(signo) ((lwp_sigset_t){.sig = {[0] = ((long)(1u << ((signo)-1)))}}) #define lwp_sigset_init(mask) ((lwp_sigset_t){.sig = {[0] = (long)(mask)}}) #endif /* _LWP_NSIG <= 64 */ struct lwp_sigaction { union { void (*_sa_handler)(int); void (*_sa_sigaction)(int, siginfo_t *, void *); } __sa_handler; lwp_sigset_t sa_mask; int sa_flags; void (*sa_restorer)(void); }; typedef struct lwp_siginfo_ext { union { /* for SIGCHLD */ struct { int status; clock_t utime; clock_t stime; } sigchld; }; } *lwp_siginfo_ext_t; typedef struct lwp_siginfo { rt_list_t node; struct { int signo; int code; int from_tid; pid_t from_pid; } ksiginfo; /* the signal specified extension field */ struct lwp_siginfo_ext *ext; } *lwp_siginfo_t; typedef struct lwp_sigqueue { rt_list_t siginfo_list; lwp_sigset_t sigset_pending; } *lwp_sigqueue_t; struct lwp_thread_signal { lwp_sigset_t sigset_mask; struct lwp_sigqueue sig_queue; }; struct rt_user_context { void *sp; void *pc; void *flag; void *ctx; }; #endif /* RT_USING_SMART */ typedef void (*rt_thread_cleanup_t)(struct rt_thread *tid); /** * Thread structure */ struct rt_thread { struct rt_object parent; /* stack point and entry */ void *sp; /**< stack point */ void *entry; /**< entry */ void *parameter; /**< parameter */ void *stack_addr; /**< stack address */ rt_uint32_t stack_size; /**< stack size */ /* error code */ rt_err_t error; /**< error code */ #ifdef RT_USING_SMP rt_atomic_t cpus_lock_nest; /**< cpus lock count */ #endif RT_SCHED_THREAD_CTX struct rt_timer thread_timer; /**< built-in thread timer */ rt_thread_cleanup_t cleanup; /**< cleanup function when thread exit */ #ifdef RT_USING_MUTEX /* object for IPC */ rt_list_t taken_object_list; rt_object_t pending_object; #endif /* RT_USING_MUTEX */ #ifdef RT_USING_EVENT /* thread event */ rt_uint32_t event_set; rt_uint8_t event_info; #endif /* RT_USING_EVENT */ #ifdef RT_USING_SIGNALS rt_sigset_t sig_pending; /**< the pending signals */ rt_sigset_t sig_mask; /**< the mask bits of signal */ #ifndef RT_USING_SMP void *sig_ret; /**< the return stack pointer from signal */ #endif /* RT_USING_SMP */ rt_sighandler_t *sig_vectors; /**< vectors of signal handler */ void *si_list; /**< the signal infor list */ #endif /* RT_USING_SIGNALS */ #ifdef RT_USING_CPU_USAGE rt_uint64_t duration_tick; /**< cpu usage tick */ #endif /* RT_USING_CPU_USAGE */ #ifdef RT_USING_PTHREADS void *pthread_data; /**< the handle of pthread data, adapt 32/64bit */ #endif /* RT_USING_PTHREADS */ /* light weight process if present */ #ifdef RT_USING_SMART void *msg_ret; /**< the return msg */ void *lwp; /**< the lwp reference */ /* for user create */ void *user_entry; void *user_stack; rt_uint32_t user_stack_size; rt_uint32_t *kernel_sp; /**< kernel stack point */ rt_list_t sibling; /**< next thread of same process */ struct lwp_thread_signal signal; /**< lwp signal for user-space thread */ struct rt_user_context user_ctx; /**< user space context */ struct rt_wakeup wakeup_handle; /**< wakeup handle for IPC */ rt_atomic_t exit_request; /**< pending exit request of thread */ int tid; /**< thread ID used by process */ int tid_ref_count; /**< reference of tid */ void *susp_recycler; /**< suspended recycler on this thread */ void *robust_list; /**< pi lock, very carefully, it's a userspace list!*/ rt_uint64_t user_time; rt_uint64_t system_time; #ifndef ARCH_MM_MMU lwp_sighandler_t signal_handler[32]; #else int step_exec; int debug_attach_req; int debug_ret_user; int debug_suspend; struct rt_hw_exp_stack *regs; void *thread_idr; /** lwp thread indicator */ int *clear_child_tid; #endif /* ARCH_MM_MMU */ #endif /* RT_USING_SMART */ #ifdef RT_USING_MEM_PROTECTION void *mem_regions; #ifdef RT_USING_HW_STACK_GUARD void *stack_buf; #endif /* RT_USING_HW_STACK_GUARD */ #endif /* RT_USING_MEM_PROTECTION */ struct rt_spinlock spinlock; rt_ubase_t user_data; /**< private user data beyond this thread */ }; typedef struct rt_thread *rt_thread_t; #ifdef RT_USING_SMART #define IS_USER_MODE(t) ((t)->user_ctx.ctx == RT_NULL) #endif /* RT_USING_SMART */ /**@}*/ /** * @addtogroup IPC */ /**@{*/ /** * IPC flags and control command definitions */ #define RT_IPC_FLAG_FIFO 0x00 /**< FIFOed IPC. @ref IPC. */ #define RT_IPC_FLAG_PRIO 0x01 /**< PRIOed IPC. @ref IPC. */ #define RT_IPC_CMD_UNKNOWN 0x00 /**< unknown IPC command */ #define RT_IPC_CMD_RESET 0x01 /**< reset IPC object */ #define RT_IPC_CMD_GET_STATE 0x02 /**< get the state of IPC object */ #define RT_IPC_CMD_SET_VLIMIT 0x03 /**< set max limit value of IPC value */ #define RT_WAITING_FOREVER -1 /**< Block forever until get resource. */ #define RT_WAITING_NO 0 /**< Non-block. */ /** * Base structure of IPC object */ struct rt_ipc_object { struct rt_object parent; /**< inherit from rt_object */ rt_list_t suspend_thread; /**< threads pended on this resource */ }; #ifdef RT_USING_SEMAPHORE /** * Semaphore structure */ struct rt_semaphore { struct rt_ipc_object parent; /**< inherit from ipc_object */ rt_uint16_t value; /**< value of semaphore. */ rt_uint16_t max_value; struct rt_spinlock spinlock; }; typedef struct rt_semaphore *rt_sem_t; #endif /* RT_USING_SEMAPHORE */ #ifdef RT_USING_MUTEX /** * Mutual exclusion (mutex) structure */ struct rt_mutex { struct rt_ipc_object parent; /**< inherit from ipc_object */ rt_uint8_t ceiling_priority; /**< the priority ceiling of mutexe */ rt_uint8_t priority; /**< the maximal priority for pending thread */ rt_uint8_t hold; /**< numbers of thread hold the mutex */ rt_uint8_t reserved; /**< reserved field */ struct rt_thread *owner; /**< current owner of mutex */ rt_list_t taken_list; /**< the object list taken by thread */ struct rt_spinlock spinlock; }; typedef struct rt_mutex *rt_mutex_t; #endif /* RT_USING_MUTEX */ #ifdef RT_USING_EVENT /** * flag definitions in event */ #define RT_EVENT_FLAG_AND 0x01 /**< logic and */ #define RT_EVENT_FLAG_OR 0x02 /**< logic or */ #define RT_EVENT_FLAG_CLEAR 0x04 /**< clear flag */ /* * event structure */ struct rt_event { struct rt_ipc_object parent; /**< inherit from ipc_object */ rt_uint32_t set; /**< event set */ struct rt_spinlock spinlock; }; typedef struct rt_event *rt_event_t; #endif /* RT_USING_EVENT */ #ifdef RT_USING_MAILBOX /** * mailbox structure */ struct rt_mailbox { struct rt_ipc_object parent; /**< inherit from ipc_object */ rt_ubase_t *msg_pool; /**< start address of message buffer */ rt_uint16_t size; /**< size of message pool */ rt_uint16_t entry; /**< index of messages in msg_pool */ rt_uint16_t in_offset; /**< input offset of the message buffer */ rt_uint16_t out_offset; /**< output offset of the message buffer */ rt_list_t suspend_sender_thread; /**< sender thread suspended on this mailbox */ struct rt_spinlock spinlock; }; typedef struct rt_mailbox *rt_mailbox_t; #endif /* RT_USING_MAILBOX */ #ifdef RT_USING_MESSAGEQUEUE /** * message queue structure */ struct rt_messagequeue { struct rt_ipc_object parent; /**< inherit from ipc_object */ void *msg_pool; /**< start address of message queue */ rt_uint16_t msg_size; /**< message size of each message */ rt_uint16_t max_msgs; /**< max number of messages */ rt_uint16_t entry; /**< index of messages in the queue */ void *msg_queue_head; /**< list head */ void *msg_queue_tail; /**< list tail */ void *msg_queue_free; /**< pointer indicated the free node of queue */ rt_list_t suspend_sender_thread; /**< sender thread suspended on this message queue */ struct rt_spinlock spinlock; }; typedef struct rt_messagequeue *rt_mq_t; #endif /* RT_USING_MESSAGEQUEUE */ /**@}*/ /** * @addtogroup MM */ /**@{*/ #ifdef RT_USING_HEAP /* * memory structure */ struct rt_memory { struct rt_object parent; /**< inherit from rt_object */ const char * algorithm; /**< Memory management algorithm name */ rt_ubase_t address; /**< memory start address */ rt_size_t total; /**< memory size */ rt_size_t used; /**< size used */ rt_size_t max; /**< maximum usage */ }; typedef struct rt_memory *rt_mem_t; #endif /* RT_USING_HEAP */ /* * memory management * heap & partition */ #ifdef RT_USING_SMALL_MEM typedef rt_mem_t rt_smem_t; #endif /* RT_USING_SMALL_MEM */ #ifdef RT_USING_SLAB typedef rt_mem_t rt_slab_t; #endif /* RT_USING_SLAB */ #ifdef RT_USING_MEMHEAP /** * memory item on the heap */ struct rt_memheap_item { rt_uint32_t magic; /**< magic number for memheap */ struct rt_memheap *pool_ptr; /**< point of pool */ struct rt_memheap_item *next; /**< next memheap item */ struct rt_memheap_item *prev; /**< prev memheap item */ struct rt_memheap_item *next_free; /**< next free memheap item */ struct rt_memheap_item *prev_free; /**< prev free memheap item */ #ifdef RT_USING_MEMTRACE rt_uint8_t owner_thread_name[4]; /**< owner thread name */ #endif /* RT_USING_MEMTRACE */ }; /** * Base structure of memory heap object */ struct rt_memheap { struct rt_object parent; /**< inherit from rt_object */ void *start_addr; /**< pool start address and size */ rt_size_t pool_size; /**< pool size */ rt_size_t available_size; /**< available size */ rt_size_t max_used_size; /**< maximum allocated size */ struct rt_memheap_item *block_list; /**< used block list */ struct rt_memheap_item *free_list; /**< free block list */ struct rt_memheap_item free_header; /**< free block list header */ struct rt_semaphore lock; /**< semaphore lock */ rt_bool_t locked; /**< External lock mark */ }; #endif /* RT_USING_MEMHEAP */ #ifdef RT_USING_MEMPOOL /** * Base structure of Memory pool object */ struct rt_mempool { struct rt_object parent; /**< inherit from rt_object */ void *start_address; /**< memory pool start */ rt_size_t size; /**< size of memory pool */ rt_size_t block_size; /**< size of memory blocks */ rt_uint8_t *block_list; /**< memory blocks list */ rt_size_t block_total_count; /**< numbers of memory block */ rt_size_t block_free_count; /**< numbers of free memory block */ rt_list_t suspend_thread; /**< threads pended on this resource */ struct rt_spinlock spinlock; }; typedef struct rt_mempool *rt_mp_t; #endif /* RT_USING_MEMPOOL */ /**@}*/ #ifdef RT_USING_DEVICE /** * @addtogroup Device */ /**@{*/ /** * device (I/O) class type */ enum rt_device_class_type { RT_Device_Class_Char = 0, /**< character device */ RT_Device_Class_Block, /**< block device */ RT_Device_Class_NetIf, /**< net interface */ RT_Device_Class_MTD, /**< memory device */ RT_Device_Class_CAN, /**< CAN device */ RT_Device_Class_RTC, /**< RTC device */ RT_Device_Class_Sound, /**< Sound device */ RT_Device_Class_Graphic, /**< Graphic device */ RT_Device_Class_I2CBUS, /**< I2C bus device */ RT_Device_Class_USBDevice, /**< USB slave device */ RT_Device_Class_USBHost, /**< USB host bus */ RT_Device_Class_USBOTG, /**< USB OTG bus */ RT_Device_Class_SPIBUS, /**< SPI bus device */ RT_Device_Class_SPIDevice, /**< SPI device */ RT_Device_Class_SDIO, /**< SDIO bus device */ RT_Device_Class_PM, /**< PM pseudo device */ RT_Device_Class_Pipe, /**< Pipe device */ RT_Device_Class_Portal, /**< Portal device */ RT_Device_Class_Timer, /**< Timer device */ RT_Device_Class_Miscellaneous, /**< Miscellaneous device */ RT_Device_Class_Sensor, /**< Sensor device */ RT_Device_Class_Touch, /**< Touch device */ RT_Device_Class_PHY, /**< PHY device */ RT_Device_Class_Security, /**< Security device */ RT_Device_Class_WLAN, /**< WLAN device */ RT_Device_Class_Pin, /**< Pin device */ RT_Device_Class_ADC, /**< ADC device */ RT_Device_Class_DAC, /**< DAC device */ RT_Device_Class_WDT, /**< WDT device */ RT_Device_Class_PWM, /**< PWM device */ RT_Device_Class_Bus, /**< Bus device */ RT_Device_Class_Unknown /**< unknown device */ }; /** * device flags definitions */ #define RT_DEVICE_FLAG_DEACTIVATE 0x000 /**< device is not not initialized */ #define RT_DEVICE_FLAG_RDONLY 0x001 /**< read only */ #define RT_DEVICE_FLAG_WRONLY 0x002 /**< write only */ #define RT_DEVICE_FLAG_RDWR 0x003 /**< read and write */ #define RT_DEVICE_FLAG_REMOVABLE 0x004 /**< removable device */ #define RT_DEVICE_FLAG_STANDALONE 0x008 /**< standalone device */ #define RT_DEVICE_FLAG_ACTIVATED 0x010 /**< device is activated */ #define RT_DEVICE_FLAG_SUSPENDED 0x020 /**< device is suspended */ #define RT_DEVICE_FLAG_STREAM 0x040 /**< stream mode */ #define RT_DEVICE_FLAG_DYNAMIC 0x080 /**< device is determined when open() */ #define RT_DEVICE_FLAG_INT_RX 0x100 /**< INT mode on Rx */ #define RT_DEVICE_FLAG_DMA_RX 0x200 /**< DMA mode on Rx */ #define RT_DEVICE_FLAG_INT_TX 0x400 /**< INT mode on Tx */ #define RT_DEVICE_FLAG_DMA_TX 0x800 /**< DMA mode on Tx */ #define RT_DEVICE_OFLAG_CLOSE 0x000 /**< device is closed */ #define RT_DEVICE_OFLAG_RDONLY 0x001 /**< read only access */ #define RT_DEVICE_OFLAG_WRONLY 0x002 /**< write only access */ #define RT_DEVICE_OFLAG_RDWR 0x003 /**< read and write */ #define RT_DEVICE_OFLAG_OPEN 0x008 /**< device is opened */ #define RT_DEVICE_OFLAG_MASK 0xf0f /**< mask of open flag */ /** * general device commands * 0x01 - 0x1F general device control commands * 0x20 - 0x3F udevice control commands * 0x40 - special device control commands */ #define RT_DEVICE_CTRL_RESUME 0x01 /**< resume device */ #define RT_DEVICE_CTRL_SUSPEND 0x02 /**< suspend device */ #define RT_DEVICE_CTRL_CONFIG 0x03 /**< configure device */ #define RT_DEVICE_CTRL_CLOSE 0x04 /**< close device */ #define RT_DEVICE_CTRL_NOTIFY_SET 0x05 /**< set notify func */ #define RT_DEVICE_CTRL_SET_INT 0x06 /**< set interrupt */ #define RT_DEVICE_CTRL_CLR_INT 0x07 /**< clear interrupt */ #define RT_DEVICE_CTRL_GET_INT 0x08 /**< get interrupt status */ #define RT_DEVICE_CTRL_CONSOLE_OFLAG 0x09 /**< get console open flag */ #define RT_DEVICE_CTRL_MASK 0x1f /**< mask for contrl commands */ /** * device control */ #define RT_DEVICE_CTRL_BASE(Type) ((RT_Device_Class_##Type + 1) * 0x100) typedef struct rt_driver *rt_driver_t; typedef struct rt_device *rt_device_t; #ifdef RT_USING_DEVICE_OPS /** * operations set for device object */ struct rt_device_ops { /* common device interface */ rt_err_t (*init) (rt_device_t dev); rt_err_t (*open) (rt_device_t dev, rt_uint16_t oflag); rt_err_t (*close) (rt_device_t dev); rt_ssize_t (*read) (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size); rt_ssize_t (*write) (rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size); rt_err_t (*control)(rt_device_t dev, int cmd, void *args); }; #endif /* RT_USING_DEVICE_OPS */ /** * WaitQueue structure */ struct rt_wqueue { rt_uint32_t flag; rt_list_t waiting_list; struct rt_spinlock spinlock; }; typedef struct rt_wqueue rt_wqueue_t; #ifdef RT_USING_DM struct rt_driver; struct rt_bus; #endif /* RT_USING_DM */ /** * Device structure */ struct rt_device { struct rt_object parent; /**< inherit from rt_object */ #ifdef RT_USING_DM struct rt_bus *bus; /**< the bus mounting to */ rt_list_t node; /**< to mount on bus */ struct rt_driver *drv; /**< driver for powering the device */ #ifdef RT_USING_OFW void *ofw_node; /**< ofw node get from device tree */ #endif /* RT_USING_OFW */ #endif /* RT_USING_DM */ enum rt_device_class_type type; /**< device type */ rt_uint16_t flag; /**< device flag */ rt_uint16_t open_flag; /**< device open flag */ rt_uint8_t ref_count; /**< reference count */ rt_uint8_t device_id; /**< 0 - 255 */ /* device call back */ rt_err_t (*rx_indicate)(rt_device_t dev, rt_size_t size); rt_err_t (*tx_complete)(rt_device_t dev, void *buffer); #ifdef RT_USING_DEVICE_OPS const struct rt_device_ops *ops; #else /* common device interface */ rt_err_t (*init) (rt_device_t dev); rt_err_t (*open) (rt_device_t dev, rt_uint16_t oflag); rt_err_t (*close) (rt_device_t dev); rt_ssize_t (*read) (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size); rt_ssize_t (*write) (rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size); rt_err_t (*control)(rt_device_t dev, int cmd, void *args); #endif /* RT_USING_DEVICE_OPS */ #ifdef RT_USING_POSIX_DEVIO const struct dfs_file_ops *fops; struct rt_wqueue wait_queue; #endif /* RT_USING_POSIX_DEVIO */ rt_err_t (*readlink) (rt_device_t dev, char *buf, int len); /**< for dynamic device */ void *user_data; /**< device private data */ }; /** * Notify structure */ struct rt_device_notify { void (*notify)(rt_device_t dev); struct rt_device *dev; }; #ifdef RT_USING_SMART struct rt_channel { struct rt_ipc_object parent; /**< inherit from object */ struct rt_thread *reply; /**< the thread will be reply */ struct rt_spinlock slock; /**< spinlock of this channel */ rt_list_t wait_msg; /**< the wait queue of sender msg */ rt_list_t wait_thread; /**< the wait queue of sender thread */ rt_wqueue_t reader_queue; /**< channel poll queue */ rt_uint8_t stat; /**< the status of this channel */ rt_ubase_t ref; }; typedef struct rt_channel *rt_channel_t; #endif /* RT_USING_SMART */ /**@}*/ #endif /* RT_USING_DEVICE */ #ifdef __cplusplus } #endif #ifdef __cplusplus /* RT-Thread definitions for C++ */ namespace rtthread { enum TICK_WAIT { WAIT_NONE = 0, WAIT_FOREVER = -1, }; } #endif /* __cplusplus */ #endif /* __RT_DEF_H__ */