xref: /openbmc/qemu/include/hw/display/xlnx_dp.h (revision 2b74dd91)
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 #include "qom/object.h"
38 #include "hw/ptimer.h"
39 
40 #define AUD_CHBUF_MAX_DEPTH                 (32 * KiB)
41 #define MAX_QEMU_BUFFER_SIZE                (4 * KiB)
42 
43 #define DP_CORE_REG_OFFSET                  (0x0000)
44 #define DP_CORE_REG_ARRAY_SIZE              (0x3B0 >> 2)
45 #define DP_AVBUF_REG_OFFSET                 (0xB000)
46 #define DP_AVBUF_REG_ARRAY_SIZE             (0x238 >> 2)
47 #define DP_VBLEND_REG_OFFSET                (0xA000)
48 #define DP_VBLEND_REG_ARRAY_SIZE            (0x1E0 >> 2)
49 #define DP_AUDIO_REG_OFFSET                 (0xC000)
50 #define DP_AUDIO_REG_ARRAY_SIZE             (0x50 >> 2)
51 #define DP_CONTAINER_SIZE                   (0xC050)
52 
53 struct PixmanPlane {
54     pixman_format_code_t format;
55     DisplaySurface *surface;
56 };
57 
58 struct XlnxDPState {
59     /*< private >*/
60     SysBusDevice parent_obj;
61 
62     /* < public >*/
63     MemoryRegion container;
64 
65     uint32_t core_registers[DP_CORE_REG_ARRAY_SIZE];
66     MemoryRegion core_iomem;
67 
68     uint32_t avbufm_registers[DP_AVBUF_REG_ARRAY_SIZE];
69     MemoryRegion avbufm_iomem;
70 
71     uint32_t vblend_registers[DP_VBLEND_REG_ARRAY_SIZE];
72     MemoryRegion vblend_iomem;
73 
74     uint32_t audio_registers[DP_AUDIO_REG_ARRAY_SIZE];
75     MemoryRegion audio_iomem;
76 
77     QemuConsole *console;
78 
79     /*
80      * This is the planes used to display in console. When the blending is
81      * enabled bout_plane is displayed in console else it's g_plane.
82      */
83     struct PixmanPlane g_plane;
84     struct PixmanPlane v_plane;
85     struct PixmanPlane bout_plane;
86 
87     QEMUSoundCard aud_card;
88     SWVoiceOut *amixer_output_stream;
89     int16_t audio_buffer_0[AUD_CHBUF_MAX_DEPTH];
90     int16_t audio_buffer_1[AUD_CHBUF_MAX_DEPTH];
91     size_t audio_data_available[2];
92     int64_t temp_buffer[AUD_CHBUF_MAX_DEPTH];
93     int16_t out_buffer[AUD_CHBUF_MAX_DEPTH];
94     size_t byte_left; /* byte available in out_buffer. */
95     size_t data_ptr;  /* next byte to be sent to QEMU. */
96 
97     /* Associated DPDMA controller. */
98     XlnxDPDMAState *dpdma;
99 
100     qemu_irq irq;
101 
102     AUXBus *aux_bus;
103     Fifo8 rx_fifo;
104     Fifo8 tx_fifo;
105 
106     /*
107      * XXX: This should be in an other module.
108      */
109     DPCDState *dpcd;
110     I2CDDCState *edid;
111 
112     ptimer_state *vblank;
113 };
114 
115 #define TYPE_XLNX_DP "xlnx.v-dp"
116 OBJECT_DECLARE_SIMPLE_TYPE(XlnxDPState, XLNX_DP)
117 
118 #endif
119