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https://git.rwth-aachen.de/acs/public/villas/node/
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92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
/** AXI-PCIe Interrupt controller
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*
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* @file
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @author Daniel Krebs <github@daniel-krebs.net>
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* @copyright 2017, Steffen Vogel
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* @license GNU General Public License (version 3)
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*
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* VILLASfpga
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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/** @addtogroup fpga VILLASfpga
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* @{
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*/
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#pragma once
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#include "fpga/ip.hpp"
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#include <xilinx/xintc.h>
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namespace villas {
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class InterruptController : public FpgaIp
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{
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public:
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using IrqMaskType = uint32_t;
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static constexpr int maxIrqs = 32;
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~InterruptController();
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bool start();
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int enableInterrupt(IrqMaskType mask, bool polling);
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int disableInterrupt(IrqMaskType mask);
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uint64_t waitForInterrupt(int irq);
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private:
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struct Interrupt {
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int eventFd; /**< Event file descriptor */
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int number; /**< Interrupt number from /proc/interrupts */
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bool polling; /**< Polled or not */
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};
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int num_irqs; /**< Number of available MSI vectors */
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int efds[maxIrqs];
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int nos[maxIrqs];
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bool polling[maxIrqs];
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// Interrupt irqs[maxIrqs]; /**< State of available interrupts */
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};
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class InterruptControllerFactory : public FpgaIpFactory {
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public:
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InterruptControllerFactory() :
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FpgaIpFactory(getName())
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{}
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FpgaIp* create()
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{ return new InterruptController; }
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std::string
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getName() const
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{ return "InterruptController"; }
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std::string
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getDescription() const
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{ return "Xilinx's programmable interrupt controller"; }
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FpgaVlnv getCompatibleVlnv() const
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{ return FpgaVlnv("acs.eonerc.rwth-aachen.de:user:axi_pcie_intc:"); }
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bool configureJson(FpgaIp* ip, json_t *json);
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};
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} // namespace villas
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/** @} */
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