1 /*
2 * Copyright (c) 2021 Hubert Miś <hubert.mis@gmail.com>
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/kernel.h>
8
9 #include <zephyr/drivers/misc/ft8xx/ft8xx.h>
10 #include <zephyr/drivers/misc/ft8xx/ft8xx_copro.h>
11 #include <zephyr/drivers/misc/ft8xx/ft8xx_dl.h>
12
13 /**
14 * @file Display a counter using FT800.
15 */
16
17 /* sleep time in msec */
18 #define SLEEPTIME 100
19
20 /* touch tags */
21 #define TAG_PLUS 1
22 #define TAG_MINUS 2
23
24 static volatile bool process_touch;
25
touch_irq(void)26 static void touch_irq(void)
27 {
28 process_touch = true;
29 }
30
main(void)31 int main(void)
32 {
33 int cnt;
34 int val;
35 struct ft8xx_touch_transform tt;
36
37 /* To get touch events calibrate the display */
38 ft8xx_calibrate(&tt);
39
40 /* Get interrupts on touch event */
41 ft8xx_register_int(touch_irq);
42
43 /* Starting counting */
44 val = 0;
45 cnt = 0;
46
47 while (1) {
48 /* Start Display List */
49 ft8xx_copro_cmd_dlstart();
50 ft8xx_copro_cmd(FT8XX_CLEAR_COLOR_RGB(0x00, 0x00, 0x00));
51 ft8xx_copro_cmd(FT8XX_CLEAR(1, 1, 1));
52
53 /* Set color */
54 ft8xx_copro_cmd(FT8XX_COLOR_RGB(0xf0, 0xf0, 0xf0));
55
56 /* Display the counter */
57 ft8xx_copro_cmd_number(20, 20, 29, FT8XX_OPT_SIGNED, cnt);
58 cnt++;
59
60 /* Display the hello message */
61 ft8xx_copro_cmd_text(20, 70, 30, 0, "Hello,");
62 /* Set Zephyr color */
63 ft8xx_copro_cmd(FT8XX_COLOR_RGB(0x78, 0x29, 0xd2));
64 ft8xx_copro_cmd_text(20, 105, 30, 0, "Zephyr!");
65
66 /* Display value set with buttons */
67 ft8xx_copro_cmd(FT8XX_COLOR_RGB(0xff, 0xff, 0xff));
68 ft8xx_copro_cmd_number(80, 170, 29,
69 FT8XX_OPT_SIGNED | FT8XX_OPT_RIGHTX,
70 val);
71 ft8xx_copro_cmd(FT8XX_TAG(TAG_PLUS));
72 ft8xx_copro_cmd_text(90, 160, 31, 0, "+");
73 ft8xx_copro_cmd(FT8XX_TAG(TAG_MINUS));
74 ft8xx_copro_cmd_text(20, 160, 31, 0, "-");
75
76 /* Finish Display List */
77 ft8xx_copro_cmd(FT8XX_DISPLAY());
78 /* Display created frame */
79 ft8xx_copro_cmd_swap();
80
81 if (process_touch) {
82 int tag = ft8xx_get_touch_tag();
83
84 if (tag == TAG_PLUS) {
85 val++;
86 } else if (tag == TAG_MINUS) {
87 val--;
88 }
89
90 process_touch = false;
91 }
92
93 /* Wait a while */
94 k_msleep(SLEEPTIME);
95 }
96 return 0;
97 }
98
