introduce xlnx-dp

This is the implementation of the DisplayPort.
It has an aux-bus to access dpcd and edid.

Graphic plane is connected to the channel 3.
Video plane is connected to the channel 0.
Audio stream are connected to the channels 4 and 5.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-By: Hyun Kwon <hyun.kwon@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1465833014-21982-9-git-send-email-fred.konrad@greensocs.com
[PMM: fixed format strings]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
KONRAD Frederic 2016-06-14 15:59:15 +01:00 committed by Peter Maydell
parent d3c6369a96
commit 58ac482a66
3 changed files with 1446 additions and 0 deletions

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@ -44,3 +44,4 @@ virtio-gpu.o-libs += $(VIRGL_LIBS)
virtio-gpu-3d.o-cflags := $(VIRGL_CFLAGS)
virtio-gpu-3d.o-libs += $(VIRGL_LIBS)
obj-$(CONFIG_DPCD) += dpcd.o
obj-$(CONFIG_XLNX_ZYNQMP) += xlnx_dp.o

1336
hw/display/xlnx_dp.c Normal file

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@ -0,0 +1,109 @@
/*
* xlnx_dp.h
*
* Copyright (C) 2015 : GreenSocs Ltd
* http://www.greensocs.com/ , email: info@greensocs.com
*
* Developed by :
* Frederic Konrad <fred.konrad@greensocs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "hw/sysbus.h"
#include "ui/console.h"
#include "hw/misc/aux.h"
#include "hw/i2c/i2c.h"
#include "hw/display/dpcd.h"
#include "hw/i2c/i2c-ddc.h"
#include "qemu/fifo8.h"
#include "hw/dma/xlnx_dpdma.h"
#include "audio/audio.h"
#ifndef XLNX_DP_H
#define XLNX_DP_H
#define AUD_CHBUF_MAX_DEPTH 32768
#define MAX_QEMU_BUFFER_SIZE 4096
#define DP_CORE_REG_ARRAY_SIZE (0x3AF >> 2)
#define DP_AVBUF_REG_ARRAY_SIZE (0x238 >> 2)
#define DP_VBLEND_REG_ARRAY_SIZE (0x1DF >> 2)
#define DP_AUDIO_REG_ARRAY_SIZE (0x50 >> 2)
struct PixmanPlane {
pixman_format_code_t format;
DisplaySurface *surface;
};
typedef struct XlnxDPState {
/*< private >*/
SysBusDevice parent_obj;
/* < public >*/
MemoryRegion container;
uint32_t core_registers[DP_CORE_REG_ARRAY_SIZE];
MemoryRegion core_iomem;
uint32_t avbufm_registers[DP_AVBUF_REG_ARRAY_SIZE];
MemoryRegion avbufm_iomem;
uint32_t vblend_registers[DP_VBLEND_REG_ARRAY_SIZE];
MemoryRegion vblend_iomem;
uint32_t audio_registers[DP_AUDIO_REG_ARRAY_SIZE];
MemoryRegion audio_iomem;
QemuConsole *console;
/*
* This is the planes used to display in console. When the blending is
* enabled bout_plane is displayed in console else it's g_plane.
*/
struct PixmanPlane g_plane;
struct PixmanPlane v_plane;
struct PixmanPlane bout_plane;
QEMUSoundCard aud_card;
SWVoiceOut *amixer_output_stream;
int16_t audio_buffer_0[AUD_CHBUF_MAX_DEPTH];
int16_t audio_buffer_1[AUD_CHBUF_MAX_DEPTH];
size_t audio_data_available[2];
int64_t temp_buffer[AUD_CHBUF_MAX_DEPTH];
int16_t out_buffer[AUD_CHBUF_MAX_DEPTH];
size_t byte_left; /* byte available in out_buffer. */
size_t data_ptr; /* next byte to be sent to QEMU. */
/* Associated DPDMA controller. */
XlnxDPDMAState *dpdma;
qemu_irq irq;
AUXBus *aux_bus;
Fifo8 rx_fifo;
Fifo8 tx_fifo;
/*
* XXX: This should be in an other module.
*/
DPCDState *dpcd;
I2CDDCState *edid;
} XlnxDPState;
#define TYPE_XLNX_DP "xlnx.v-dp"
#define XLNX_DP(obj) OBJECT_CHECK(XlnxDPState, (obj), TYPE_XLNX_DP)
#endif /* !XLNX_DP_H */