]>
Commit | Line | Data |
---|---|---|
fee531ee MF |
1 | /* |
2 | * BF533-STAMP splash driver | |
3 | * | |
4 | * Copyright (c) 2006-2008 Analog Devices Inc. | |
5 | * (C) Copyright 2000 | |
6 | * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it | |
7 | * (C) Copyright 2002 | |
8 | * Wolfgang Denk, wd@denx.de | |
9 | * | |
10 | * Licensed under the GPL-2 or later. | |
11 | */ | |
12 | ||
13 | #include <stdarg.h> | |
14 | #include <common.h> | |
15 | #include <config.h> | |
16 | #include <malloc.h> | |
17 | #include <asm/blackfin.h> | |
18 | #include <asm/mach-common/bits/dma.h> | |
19 | #include <i2c.h> | |
20 | #include <linux/types.h> | |
21 | #include <devices.h> | |
22 | ||
23 | int gunzip(void *, int, unsigned char *, unsigned long *); | |
24 | ||
25 | #define DMA_SIZE16 2 | |
26 | ||
27 | #include <asm/mach-common/bits/ppi.h> | |
28 | ||
29 | #define NTSC_FRAME_ADDR 0x06000000 | |
30 | #include "video.h" | |
31 | ||
32 | /* NTSC OUTPUT SIZE 720 * 240 */ | |
33 | #define VERTICAL 2 | |
34 | #define HORIZONTAL 4 | |
35 | ||
36 | int is_vblank_line(const int line) | |
37 | { | |
38 | /* | |
39 | * This array contains a single bit for each line in | |
40 | * an NTSC frame. | |
41 | */ | |
42 | if ((line <= 18) || (line >= 264 && line <= 281) || (line == 528)) | |
43 | return true; | |
44 | ||
45 | return false; | |
46 | } | |
47 | ||
48 | int NTSC_framebuffer_init(char *base_address) | |
49 | { | |
50 | const int NTSC_frames = 1; | |
51 | const int NTSC_lines = 525; | |
52 | char *dest = base_address; | |
53 | int frame_num, line_num; | |
54 | ||
55 | for (frame_num = 0; frame_num < NTSC_frames; ++frame_num) { | |
56 | for (line_num = 1; line_num <= NTSC_lines; ++line_num) { | |
57 | unsigned int code; | |
58 | int offset = 0; | |
59 | int i; | |
60 | ||
61 | if (is_vblank_line(line_num)) | |
62 | offset++; | |
63 | ||
64 | if (line_num > 266 || line_num < 3) | |
65 | offset += 2; | |
66 | ||
67 | /* Output EAV code */ | |
68 | code = system_code_map[offset].eav; | |
69 | write_dest_byte((char)(code >> 24) & 0xff); | |
70 | write_dest_byte((char)(code >> 16) & 0xff); | |
71 | write_dest_byte((char)(code >> 8) & 0xff); | |
72 | write_dest_byte((char)(code) & 0xff); | |
73 | ||
74 | /* Output horizontal blanking */ | |
75 | for (i = 0; i < 67 * 2; ++i) { | |
76 | write_dest_byte(0x80); | |
77 | write_dest_byte(0x10); | |
78 | } | |
79 | ||
80 | /* Output SAV */ | |
81 | code = system_code_map[offset].sav; | |
82 | write_dest_byte((char)(code >> 24) & 0xff); | |
83 | write_dest_byte((char)(code >> 16) & 0xff); | |
84 | write_dest_byte((char)(code >> 8) & 0xff); | |
85 | write_dest_byte((char)(code) & 0xff); | |
86 | ||
87 | /* Output empty horizontal data */ | |
88 | for (i = 0; i < 360 * 2; ++i) { | |
89 | write_dest_byte(0x80); | |
90 | write_dest_byte(0x10); | |
91 | } | |
92 | } | |
93 | } | |
94 | ||
95 | return dest - base_address; | |
96 | } | |
97 | ||
98 | void fill_frame(char *Frame, int Value) | |
99 | { | |
100 | int *OddPtr32; | |
101 | int OddLine; | |
102 | int *EvenPtr32; | |
103 | int EvenLine; | |
104 | int i; | |
105 | int *data; | |
106 | int m, n; | |
107 | ||
108 | /* fill odd and even frames */ | |
109 | for (OddLine = 22, EvenLine = 285; OddLine < 263; OddLine++, EvenLine++) { | |
110 | OddPtr32 = (int *)((Frame + (OddLine * 1716)) + 276); | |
111 | EvenPtr32 = (int *)((Frame + (EvenLine * 1716)) + 276); | |
112 | for (i = 0; i < 360; i++, OddPtr32++, EvenPtr32++) { | |
113 | *OddPtr32 = Value; | |
114 | *EvenPtr32 = Value; | |
115 | } | |
116 | } | |
117 | ||
118 | for (m = 0; m < VERTICAL; m++) { | |
119 | data = (int *)u_boot_logo.data; | |
120 | for (OddLine = (22 + m), EvenLine = (285 + m); | |
121 | OddLine < (u_boot_logo.height * VERTICAL) + (22 + m); | |
122 | OddLine += VERTICAL, EvenLine += VERTICAL) { | |
123 | OddPtr32 = (int *)((Frame + ((OddLine) * 1716)) + 276); | |
124 | EvenPtr32 = | |
125 | (int *)((Frame + ((EvenLine) * 1716)) + 276); | |
126 | for (i = 0; i < u_boot_logo.width / 2; i++) { | |
127 | /* enlarge one pixel to m x n */ | |
128 | for (n = 0; n < HORIZONTAL; n++) { | |
129 | *OddPtr32++ = *data; | |
130 | *EvenPtr32++ = *data; | |
131 | } | |
132 | data++; | |
133 | } | |
134 | } | |
135 | } | |
136 | } | |
137 | ||
138 | static void video_init(char *NTSCFrame) | |
139 | { | |
140 | NTSC_framebuffer_init(NTSCFrame); | |
141 | fill_frame(NTSCFrame, BLUE); | |
142 | ||
143 | bfin_write_PPI_CONTROL(0x0082); | |
144 | bfin_write_PPI_FRAME(0x020D); | |
145 | ||
146 | bfin_write_DMA0_START_ADDR(NTSCFrame); | |
147 | bfin_write_DMA0_X_COUNT(0x035A); | |
148 | bfin_write_DMA0_X_MODIFY(0x0002); | |
149 | bfin_write_DMA0_Y_COUNT(0x020D); | |
150 | bfin_write_DMA0_Y_MODIFY(0x0002); | |
151 | bfin_write_DMA0_CONFIG(0x1015); | |
152 | bfin_write_PPI_CONTROL(0x0083); | |
153 | } | |
154 | ||
155 | int drv_video_init(void) | |
156 | { | |
157 | device_t videodev; | |
158 | ||
159 | video_init((void *)NTSC_FRAME_ADDR); | |
160 | ||
161 | memset(&videodev, 0, sizeof(videodev)); | |
162 | strcpy(videodev.name, "video"); | |
163 | videodev.ext = DEV_EXT_VIDEO; | |
164 | videodev.flags = DEV_FLAGS_SYSTEM; | |
165 | ||
166 | return device_register(&videodev); | |
167 | } |