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6ea7a5762a
console.h brings a dependency on the <epoxy/opengl.h> and the pixman header file (if available), so we should avoid to include this file if it is not really necessary. console.h does not seem to be necessary for the xlnx_dpdma code, so drop the include here. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-ID: <20250508144120.163009-2-thuth@redhat.com>
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/*
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* xlnx_dpdma.h
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*
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* Copyright (C) 2015 : GreenSocs Ltd
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* http://www.greensocs.com/ , email: info@greensocs.com
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*
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* Developed by :
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* Frederic Konrad <fred.konrad@greensocs.com>
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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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef XLNX_DPDMA_H
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#define XLNX_DPDMA_H
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#include "hw/sysbus.h"
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#include "system/dma.h"
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#include "qom/object.h"
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#define XLNX_DPDMA_REG_ARRAY_SIZE (0x1000 >> 2)
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struct XlnxDPDMAState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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MemoryRegion iomem;
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uint32_t registers[XLNX_DPDMA_REG_ARRAY_SIZE];
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uint8_t *data[6];
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bool operation_finished[6];
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qemu_irq irq;
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};
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#define TYPE_XLNX_DPDMA "xlnx.dpdma"
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OBJECT_DECLARE_SIMPLE_TYPE(XlnxDPDMAState, XLNX_DPDMA)
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/*
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* xlnx_dpdma_start_operation: Start the operation on the specified channel. The
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* DPDMA gets the current descriptor and retrieves
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* data to the buffer specified by
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* dpdma_set_host_data_location().
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*
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* Returns The number of bytes transferred by the DPDMA
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* or 0 if an error occurred.
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*
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* @s The DPDMA state.
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* @channel The channel to start.
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*/
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size_t xlnx_dpdma_start_operation(XlnxDPDMAState *s, uint8_t channel,
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bool one_desc);
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/*
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* xlnx_dpdma_set_host_data_location: Set the location in the host memory where
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* to store the data out from the dma
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* channel.
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*
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* @s The DPDMA state.
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* @channel The channel associated to the pointer.
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* @p The buffer where to store the data.
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*/
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/* XXX: add a maximum size arg and send an interrupt in case of overflow. */
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void xlnx_dpdma_set_host_data_location(XlnxDPDMAState *s, uint8_t channel,
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void *p);
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/*
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* xlnx_dpdma_trigger_vsync_irq: Trigger a VSYNC IRQ when the display is
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* updated.
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*
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* @s The DPDMA state.
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*/
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void xlnx_dpdma_trigger_vsync_irq(XlnxDPDMAState *s);
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#endif /* XLNX_DPDMA_H */
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