1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
| // SPDX-License-Identifier: GPL-2.0+
| /*
| * FB driver for the ILI9486 LCD Controller
| *
| * Copyright (C) 2014 Noralf Tronnes
| */
|
| #include <linux/module.h>
| #include <linux/kernel.h>
| #include <linux/init.h>
| #include <video/mipi_display.h>
|
| #include "fbtft.h"
|
| #define DRVNAME "fb_ili9486"
| #define WIDTH 320
| #define HEIGHT 480
|
| /* this init sequence matches PiScreen */
| static const s16 default_init_sequence[] = {
| /* Interface Mode Control */
| -1, 0xb0, 0x0,
| -1, MIPI_DCS_EXIT_SLEEP_MODE,
| -2, 250,
| /* Interface Pixel Format */
| -1, MIPI_DCS_SET_PIXEL_FORMAT, 0x55,
| /* Power Control 3 */
| -1, 0xC2, 0x44,
| /* VCOM Control 1 */
| -1, 0xC5, 0x00, 0x00, 0x00, 0x00,
| /* PGAMCTRL(Positive Gamma Control) */
| -1, 0xE0, 0x0F, 0x1F, 0x1C, 0x0C, 0x0F, 0x08, 0x48, 0x98,
| 0x37, 0x0A, 0x13, 0x04, 0x11, 0x0D, 0x00,
| /* NGAMCTRL(Negative Gamma Control) */
| -1, 0xE1, 0x0F, 0x32, 0x2E, 0x0B, 0x0D, 0x05, 0x47, 0x75,
| 0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00,
| /* Digital Gamma Control 1 */
| -1, 0xE2, 0x0F, 0x32, 0x2E, 0x0B, 0x0D, 0x05, 0x47, 0x75,
| 0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00,
| -1, MIPI_DCS_EXIT_SLEEP_MODE,
| -1, MIPI_DCS_SET_DISPLAY_ON,
| /* end marker */
| -3
| };
|
| static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
| {
| write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
| xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
|
| write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
| ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
|
| write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
| }
|
| static int set_var(struct fbtft_par *par)
| {
| switch (par->info->var.rotate) {
| case 0:
| write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
| 0x80 | (par->bgr << 3));
| break;
| case 90:
| write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
| 0x20 | (par->bgr << 3));
| break;
| case 180:
| write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
| 0x40 | (par->bgr << 3));
| break;
| case 270:
| write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
| 0xE0 | (par->bgr << 3));
| break;
| default:
| break;
| }
|
| return 0;
| }
|
| static struct fbtft_display display = {
| .regwidth = 8,
| .width = WIDTH,
| .height = HEIGHT,
| .init_sequence = default_init_sequence,
| .fbtftops = {
| .set_addr_win = set_addr_win,
| .set_var = set_var,
| },
| };
|
| FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9486", &display);
|
| MODULE_ALIAS("spi:" DRVNAME);
| MODULE_ALIAS("platform:" DRVNAME);
| MODULE_ALIAS("spi:ili9486");
| MODULE_ALIAS("platform:ili9486");
|
| MODULE_DESCRIPTION("FB driver for the ILI9486 LCD Controller");
| MODULE_AUTHOR("Noralf Tronnes");
| MODULE_LICENSE("GPL");
|
|
