Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Thomas Petazzoni |
546 |
97.15% |
1 |
25.00% |
| Priit Laes |
14 |
2.49% |
1 |
25.00% |
| Greg Kroah-Hartman |
2 |
0.36% |
2 |
50.00% |
| Total |
562 |
|
4 |
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Custom FB driver for tinylcd.com display
*
* Copyright (C) 2013 Noralf Tronnes
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <video/mipi_display.h>
#include "fbtft.h"
#define DRVNAME "fb_tinylcd"
#define WIDTH 320
#define HEIGHT 480
static int init_display(struct fbtft_par *par)
{
par->fbtftops.reset(par);
write_reg(par, 0xB0, 0x80);
write_reg(par, 0xC0, 0x0A, 0x0A);
write_reg(par, 0xC1, 0x45, 0x07);
write_reg(par, 0xC2, 0x33);
write_reg(par, 0xC5, 0x00, 0x42, 0x80);
write_reg(par, 0xB1, 0xD0, 0x11);
write_reg(par, 0xB4, 0x02);
write_reg(par, 0xB6, 0x00, 0x22, 0x3B);
write_reg(par, 0xB7, 0x07);
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x58);
write_reg(par, 0xF0, 0x36, 0xA5, 0xD3);
write_reg(par, 0xE5, 0x80);
write_reg(par, 0xE5, 0x01);
write_reg(par, 0xB3, 0x00);
write_reg(par, 0xE5, 0x00);
write_reg(par, 0xF0, 0x36, 0xA5, 0x53);
write_reg(par, 0xE0, 0x00, 0x35, 0x33, 0x00, 0x00, 0x00,
0x00, 0x35, 0x33, 0x00, 0x00, 0x00);
write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);
write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
udelay(250);
write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
return 0;
}
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 270:
write_reg(par, 0xB6, 0x00, 0x02, 0x3B);
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x28);
break;
case 180:
write_reg(par, 0xB6, 0x00, 0x22, 0x3B);
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x58);
break;
case 90:
write_reg(par, 0xB6, 0x00, 0x22, 0x3B);
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x38);
break;
default:
write_reg(par, 0xB6, 0x00, 0x22, 0x3B);
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x08);
break;
}
return 0;
}
static struct fbtft_display display = {
.regwidth = 8,
.width = WIDTH,
.height = HEIGHT,
.fbtftops = {
.init_display = init_display,
.set_addr_win = set_addr_win,
.set_var = set_var,
},
};
FBTFT_REGISTER_DRIVER(DRVNAME, "neosec,tinylcd", &display);
MODULE_ALIAS("spi:" DRVNAME);
MODULE_ALIAS("spi:tinylcd");
MODULE_DESCRIPTION("Custom FB driver for tinylcd.com display");
MODULE_AUTHOR("Noralf Tronnes");
MODULE_LICENSE("GPL");