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comparison target-utils/lunadrv/lcdout.c @ 700:db9a8e88e63f

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target-utils lunadrv program written, compiles
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 07 May 2020 02:19:51 +0000
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699:c354c261f635 700:db9a8e88e63f
1 /*
2 * Generic LCD output operations are implemented here. All of the basic
3 * LCD controller registers needed for these operations are the same
4 * between ILI9225, ILI9225G and ST7775R controllers.
5 */
6
7 #include <sys/types.h>
8 #include "types.h"
9 #include "luna.h"
10
11 set_lcd_addr_region(xstart, xend, ystart, yend)
12 {
13 /* set window area */
14 LCD_REG_WR(0x36, xend);
15 LCD_REG_WR(0x37, xstart);
16 LCD_REG_WR(0x38, yend);
17 LCD_REG_WR(0x39, ystart);
18 /* set current write address */
19 LCD_REG_WR(0x20, xstart);
20 LCD_REG_WR(0x21, ystart);
21 /* set up for GRAM write */
22 LCD_IR = 0x22;
23 }
24
25 void
26 cmd_fill(argbulk)
27 char *argbulk;
28 {
29 char *argv[2];
30 u_long pixval;
31 unsigned n;
32
33 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
34 return;
35 if (parse_hexarg(argv[0], 4, &pixval) < 0) {
36 printf("ERROR: arg must be a valid 16-bit hex value\n");
37 return;
38 }
39 set_lcd_addr_region(0, 175, 0, 219);
40 for (n = 0; n < 176 * 220; n++)
41 LCD_DR = pixval;
42 }
43
44 void
45 cmd_rect(argbulk)
46 char *argbulk;
47 {
48 char *argv[6];
49 u_long pixval;
50 int xstart, xend, ystart, yend;
51 int npix;
52
53 if (parse_args(argbulk, 5, 5, argv, 0) < 0)
54 return;
55 xstart = atoi(argv[0]);
56 if (xstart < 0 || xstart > 175) {
57 range_err: printf("ERROR: coordinate arg out of range\n");
58 return;
59 }
60 xend = atoi(argv[1]);
61 if (xend < 0 || xend > 175)
62 goto range_err;
63 ystart = atoi(argv[2]);
64 if (ystart < 0 || ystart > 219)
65 goto range_err;
66 yend = atoi(argv[3]);
67 if (yend < 0 || yend > 219)
68 goto range_err;
69 if (xend < xstart || yend < ystart) {
70 printf("ERROR: negative range\n");
71 return;
72 }
73 if (parse_hexarg(argv[4], 4, &pixval) < 0) {
74 printf("ERROR: pixel arg must be a valid 16-bit hex value\n");
75 return;
76 }
77 set_lcd_addr_region(xstart, xend, ystart, yend);
78 npix = (xend + 1 - xstart) * (yend + 1 - ystart);
79 while (npix--)
80 LCD_DR = pixval;
81 }
82
83 void
84 cmd_mem2lcd(argbulk)
85 char *argbulk;
86 {
87 char *argv[2];
88 u_long addr;
89 const u16 *rdmem;
90 unsigned n;
91
92 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
93 return;
94 if (parse_hexarg(argv[0], 8, &addr) < 0) {
95 printf("ERROR: argument must be a valid 32-bit hex address\n");
96 return;
97 }
98 if (addr & 1) {
99 printf("ERROR: unaligned address\n");
100 return;
101 }
102 rdmem = (const u16 *) addr;
103 set_lcd_addr_region(0, 175, 0, 219);
104 for (n = 0; n < 176 * 220; n++)
105 LCD_DR = *rdmem++;
106 }