或者占用者是当前进程的时候,说明可以占用了,退出break;spin_unlock_irqrestore(&host->lock,flags);schedule();// 否则,进行调度进入休眠spin_lock_irqsave(&host->lock,flags);}set_current_state(TASK_RUNNING);// 设置进程为运行状态if(!stop){host->claimed=1;// 设置占用标志claimed...
{///只考虑abort为NULL的情况,在mmc core中的mmc_claim_host也是将其设置为NULLDECLARE_WAITQUEUE(wait, current); unsigned long flags; int stop;might_sleep();// 说明这个函数可能导致进程休眠add_wait_queue(&host->wq, &wait);// 把当前进程加入到等待队列中spin_lock_irqsave(&host->lock, flags);...
Return IRQ_HANDLED; } 底半部函数:void Demo_do_tasklet (unsigned long)。 在使用tasklet之前,首先需使用DECLARE_TASKLET(Demo_tasklet, Demo_do_tasklet, data)申明tasklet,但也可以使用struct work_queue Demo_wq申明work queue(工作队列);申明之后需要将后半部处理函数Demo_do_tasklet ( )放入工作队列中,可以...
features. Some of them are used by default by the Arduino API: I2C, SPI, TIM, U(S)ART, ... and take over IRQ Handlers (ex:TIMx_IRQHandler) and other HAL weaked functions (ex:HAL_XXX_MspInit()). For advanced user applications, it could be useful to take control of those IRQ ...
check_hw_layout(pio_hw_t, ints1, PIO_IRQ1_INTS_OFFSET); static_assert(NUM_PIO_STATE_MACHINES * NUM_PIOS <= 8, ""); static uint8_t claimed; void pio_sm_claim(PIO pio, uint sm) { check_sm_param(sm); uint which = pio_get_index(pio); if (which) { hw_claim_or_assert(&...
Filescan_cfg.hfile_config.hnet_config.hrtl.hrtx_can.hrtx_config.hstdio.hReference_alloc_box_calloc_box_declare_box_declare_box8_free_box_init_box_init_box8acceptADC_IF_GetRequestADC_IF_SetRequestarp_cache_iparp_cache_macarp_get_infobindCAN_initCAN_receiveCAN_requestCAN_rx_objectCAN_send...
Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other low-level projects in C/C++ (bootloaders, C libraries...)
c0beff4e35af drm/amdgpu: implement IRQ_STATE_ENABLE for SDMA v4.4.2 1e2c28e74a82 drm/amdgpu: Refine IB schedule error logging 037e72e7d7d2 tools/power/turbostat: Fix uncore frequency file string f91955da8117 MIPS: scall: Save thread_info.syscall unconditionally on entry ...
Declare the LEDs as outputs: pinMode(led1,OUTPUT);pinMode(led2,OUTPUT); Then, create Task1 using thexTaskCreatePinnedToCore()function: xTaskCreatePinnedToCore(Task1code,/* Task function. */"Task1",/* name of task. */10000,/* Stack size of task */NULL,/* parameter of the task */...
host->claimed || host->claimer == current) // 当host的占用标志claimed为0,或者占用者是当前进程的时候,说明可以占用了,退出 break; spin_unlock_irqrestore(&host->lock, flags); schedule(); // 否则,进行调度进入休眠 spin_lock_irqsave(&host->lock, flags); } set_current_state(TASK_RUNNING);...