xref: /openbmc/qemu/include/hw/display/xlnx_dp.h (revision 3d9569b8)
1 /*
2  * xlnx_dp.h
3  *
4  *  Copyright (C) 2015 : GreenSocs Ltd
5  *      http://www.greensocs.com/ , email: info@greensocs.com
6  *
7  *  Developed by :
8  *  Frederic Konrad   <fred.konrad@greensocs.com>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation, either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License along
21  * with this program; if not, see <http://www.gnu.org/licenses/>.
22  */
23 
24 #ifndef XLNX_DP_H
25 #define XLNX_DP_H
26 
27 #include "hw/sysbus.h"
28 #include "ui/console.h"
29 #include "hw/misc/auxbus.h"
30 #include "hw/i2c/i2c.h"
31 #include "hw/display/dpcd.h"
32 #include "hw/display/i2c-ddc.h"
33 #include "qemu/fifo8.h"
34 #include "qemu/units.h"
35 #include "hw/dma/xlnx_dpdma.h"
36 #include "audio/audio.h"
37 
38 #define AUD_CHBUF_MAX_DEPTH                 (32 * KiB)
39 #define MAX_QEMU_BUFFER_SIZE                (4 * KiB)
40 
41 #define DP_CORE_REG_ARRAY_SIZE              (0x3AF >> 2)
42 #define DP_AVBUF_REG_ARRAY_SIZE             (0x238 >> 2)
43 #define DP_VBLEND_REG_ARRAY_SIZE            (0x1DF >> 2)
44 #define DP_AUDIO_REG_ARRAY_SIZE             (0x50 >> 2)
45 
46 struct PixmanPlane {
47     pixman_format_code_t format;
48     DisplaySurface *surface;
49 };
50 
51 typedef struct XlnxDPState {
52     /*< private >*/
53     SysBusDevice parent_obj;
54 
55     /* < public >*/
56     MemoryRegion container;
57 
58     uint32_t core_registers[DP_CORE_REG_ARRAY_SIZE];
59     MemoryRegion core_iomem;
60 
61     uint32_t avbufm_registers[DP_AVBUF_REG_ARRAY_SIZE];
62     MemoryRegion avbufm_iomem;
63 
64     uint32_t vblend_registers[DP_VBLEND_REG_ARRAY_SIZE];
65     MemoryRegion vblend_iomem;
66 
67     uint32_t audio_registers[DP_AUDIO_REG_ARRAY_SIZE];
68     MemoryRegion audio_iomem;
69 
70     QemuConsole *console;
71 
72     /*
73      * This is the planes used to display in console. When the blending is
74      * enabled bout_plane is displayed in console else it's g_plane.
75      */
76     struct PixmanPlane g_plane;
77     struct PixmanPlane v_plane;
78     struct PixmanPlane bout_plane;
79 
80     QEMUSoundCard aud_card;
81     SWVoiceOut *amixer_output_stream;
82     int16_t audio_buffer_0[AUD_CHBUF_MAX_DEPTH];
83     int16_t audio_buffer_1[AUD_CHBUF_MAX_DEPTH];
84     size_t audio_data_available[2];
85     int64_t temp_buffer[AUD_CHBUF_MAX_DEPTH];
86     int16_t out_buffer[AUD_CHBUF_MAX_DEPTH];
87     size_t byte_left; /* byte available in out_buffer. */
88     size_t data_ptr;  /* next byte to be sent to QEMU. */
89 
90     /* Associated DPDMA controller. */
91     XlnxDPDMAState *dpdma;
92 
93     qemu_irq irq;
94 
95     AUXBus *aux_bus;
96     Fifo8 rx_fifo;
97     Fifo8 tx_fifo;
98 
99     /*
100      * XXX: This should be in an other module.
101      */
102     DPCDState *dpcd;
103     I2CDDCState *edid;
104 } XlnxDPState;
105 
106 #define TYPE_XLNX_DP "xlnx.v-dp"
107 #define XLNX_DP(obj) OBJECT_CHECK(XlnxDPState, (obj), TYPE_XLNX_DP)
108 
109 #endif
110