87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*
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* VMM Bus Driver
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*
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* COPYRIGHT (C) 2015, Shanghai Real-Thread Technology Co., Ltd
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* http://www.rt-thread.com
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*
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* This file is part of RT-Thread (http://www.rt-thread.org)
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*
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* All rights reserved.
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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 2 of the License, or
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* (at your option) 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2015-01-07 Grissiom add comment
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*/
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#include <rtthread.h>
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#ifdef RT_USING_VBUS
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#include <rtdevice.h>
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#include <vbus.h>
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#include <board.h>
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struct rt_vbus_ring rt_vbus_rings[2] SECTION("vbus_ring");
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int rt_vbus_do_init(void)
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{
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return rt_vbus_init(&rt_vbus_rings[0], &rt_vbus_rings[1]);
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}
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INIT_COMPONENT_EXPORT(rt_vbus_do_init);
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int rt_vbus_hw_init(void)
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{
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NVIC_ClearPendingIRQ(M0CORE_IRQn);
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NVIC_EnableIRQ(M0CORE_IRQn);
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return 0;
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}
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void M0CORE_IRQHandler(void)
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{
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LPC_CREG->M0TXEVENT = 0;
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rt_vbus_isr(M0CORE_IRQn, RT_NULL);
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}
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int rt_vbus_hw_eoi(int irqnr, void *param)
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{
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/* Nothing to do here as we cleared the interrupt in IRQHandler. */
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return 0;
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}
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struct rt_vbus_dev rt_vbus_chn_devx[] = {
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{
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.req =
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{
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.prio = 30,
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.name = "vecho",
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.is_server = 1,
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.recv_wm.low = RT_VMM_RB_BLK_NR / 3,
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.recv_wm.high = RT_VMM_RB_BLK_NR * 2 / 3,
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.post_wm.low = RT_VMM_RB_BLK_NR / 3,
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.post_wm.high = RT_VMM_RB_BLK_NR * 2 / 3,
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}
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},
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{
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.req =
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{
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.name = RT_NULL,
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}
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},
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};
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#endif /* RT_USING_VBUS */
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