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authorKONRAD Frederic <fred.konrad@greensocs.com>2016-06-14 15:59:15 +0100
committerPeter Maydell <peter.maydell@linaro.org>2016-06-14 16:01:03 +0100
commit58ac482a66de09a7590f705e53fc6a3fb8a055e8 (patch)
tree1246e69aaf7e636f58a1beb3429c46d6f3d886e7 /include/hw/display
parentd3c6369a96a8741523a617295306665773ca02e5 (diff)
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>
Diffstat (limited to 'include/hw/display')
-rw-r--r--include/hw/display/xlnx_dp.h109
1 files changed, 109 insertions, 0 deletions
diff --git a/include/hw/display/xlnx_dp.h b/include/hw/display/xlnx_dp.h
new file mode 100644
index 0000000000..d3a03f118c
--- /dev/null
+++ b/include/hw/display/xlnx_dp.h
@@ -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 */