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comparison target-utils/lunadrv/regcmd.c @ 702:36e6a1ff9608

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lunadrv: rd and wr commands added
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 07 May 2020 02:40:13 +0000
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701:39e7b3001946 702:36e6a1ff9608
1 /*
2 * Handy commands for reading and writing LCD controller registers.
3 */
4
5 #include <sys/types.h>
6 #include "types.h"
7 #include "luna.h"
8
9 void
10 cmd_rd(argbulk)
11 char *argbulk;
12 {
13 char *argv[2];
14 u_long regno;
15
16 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
17 return;
18 if (parse_hexarg(argv[0], 4, &regno) < 0) {
19 printf("ERROR: regno argument must be a valid 16-bit hex word\n");
20 return;
21 }
22 LCD_IR = regno;
23 printf("%04X\n", LCD_DR);
24 }
25
26 void
27 cmd_wr(argbulk)
28 char *argbulk;
29 {
30 char *argv[3];
31 u_long regno, value;
32
33 if (parse_args(argbulk, 2, 2, argv, 0) < 0)
34 return;
35 if (parse_hexarg(argv[0], 4, &regno) < 0) {
36 printf("ERROR: regno argument must be a valid 16-bit hex word\n");
37 return;
38 }
39 if (parse_hexarg(argv[1], 4, &value) < 0) {
40 printf("ERROR: value argument must be a valid 16-bit hex word\n");
41 return;
42 }
43 LCD_IR = regno;
44 LCD_DR = value;
45 }