在第一个IRQ的ISR处理程序正在运行时,可能同时有第二个IRQ请求发送过来,那么IRQ_PENDING置位,因此循环将从头开始。但是在这种情况下,IRQ已经被屏蔽,因而chip->unmask接触IRQ的屏蔽,并清除IRQ_MASKED标志。这确保在handle_IRQ_event执行期间只能发生一个中断。 我们首先来看pending信号的问题。 如果一个中断请求队列的服...
handle_IRQ_event(); status &=~IRQ_INPROGRESS; unmask( irq ); } 由于irq在整个处理过程中都被屏蔽,所以需要handle_level_irq里的action要尽量简短 handle_edge_irq * Interrupt occures on the falling and/or rising edge of a hardware * signal. The occurence is latched into the irq controller hard...
handle_level_irq() { mask( irq ); ack( irq ); status |=IRQ_INPROGRESS; handle_IRQ_event(); status &=~IRQ_INPROGRESS; unmask( irq ); } 由于irq在整个处理过程中都被屏蔽,所以需要handle_level_irq里的action要尽量简短 handle_edge_irq * Interrupt occures on the falling and/or rising edge...
handle_IRQ_event(); status &=~IRQ_INPROGRESS; unmask( irq ); } 由于irq在整个处理过程中都被屏蔽,所以需要handle_level_irq里的action要尽量简短 handle_edge_irq * Interrupt occures on the falling and/or rising edge of a hardware * signal. The occurence is latched into the irq controller hard...
staticintgp_libusb1_check_int(GPPort *port,char*bytes,intsize,inttimeout){intret;structtimevaltv;C_PARAMS (port && port->pl->dh && timeout >=0);if(port->pl->nrofirqs)gotohandleirq; tv.tv_sec = timeout/1000; tv.tv_usec = (timeout%1000)*1000; ...
status = widgets[i]->HandleEvent(event); } }break;/* Ignore unhandled events */default: status = GUI_PASS;break; }HandleStatus(status); } 开发者ID:bazilio-ua,项目名称:Atari800MacX,代码行数:35,代码来源:GUI.cpp 示例3: HandleStatus ...
lan78xx_defer_kevent(dev,EVENT_LINK_RESET); if(dev->domain_data.phyirq>0) if(dev->domain_data.phyirq>0) { local_irq_disable(); generic_handle_irq(dev->domain_data.phyirq); local_irq_enable(); } }else netdev_warn(dev->net, ...
I have controlled msgDMA to write the descriptor and read data from SDRAM successfully but I don't know how to register and handle the interrupt of event completing a transfer in linux application. In my qsys design, the csr_iq of msgDMA is connected with f2h_irq0 ...
Wherever possible, replace constructs that match either generic_handle_irq(irq_find_mapping()) or generic_handle_irq(irq_linear_revmap()) to a single call to generic_handle_domain_irq(). Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowsk...
Функция IoWMIWriteEvent Функция IoWriteErrorLogEntry Функция IoWriteKsrPersistentMemory Структура IRP Перечисление IRQ_DEVICE_POLICY Перечисление IRQ_PRIORITY Функция IsListEmpty структура KBUGCHECK_A...