Commit 3b143b55 authored by Kozhevnikov Anatoly's avatar Kozhevnikov Anatoly Committed by Greg Kroah-Hartman
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staging: fbtft: Add support for ili9163 controller



Driver for ili9163-based displays (for example: Nokia 5110)
Signed-off-by: default avatarKozhevnikov Anatoly <shilo.xyz@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent cb422f3b
......@@ -38,6 +38,12 @@ config FB_TFT_HX8353D
help
Generic Framebuffer support for HX8353D
config FB_TFT_ILI9163
tristate "FB driver for the ILI9163 LCD Controller"
depends on FB_TFT
help
Generic Framebuffer support for ILI9163
config FB_TFT_ILI9320
tristate "FB driver for the ILI9320 LCD Controller"
depends on FB_TFT
......
......@@ -8,6 +8,7 @@ obj-$(CONFIG_FB_TFT_BD663474) += fb_bd663474.o
obj-$(CONFIG_FB_TFT_HX8340BN) += fb_hx8340bn.o
obj-$(CONFIG_FB_TFT_HX8347D) += fb_hx8347d.o
obj-$(CONFIG_FB_TFT_HX8353D) += fb_hx8353d.o
obj-$(CONFIG_FB_TFT_ILI9163) += fb_ili9163.o
obj-$(CONFIG_FB_TFT_ILI9320) += fb_ili9320.o
obj-$(CONFIG_FB_TFT_ILI9325) += fb_ili9325.o
obj-$(CONFIG_FB_TFT_ILI9340) += fb_ili9340.o
......
/*
* FB driver for the ILI9163 LCD Controller
*
* Copyright (C) 2015 Kozhevnikov Anatoly
*
* Based on ili9325.c by Noralf Tronnes and
* .S.U.M.O.T.O.Y. by Max MC Costa (https://github.com/sumotoy/TFT_ILI9163C).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include "fbtft.h"
#define DRVNAME "fb_ili9163"
#define WIDTH 128
#define HEIGHT 128
#define BPP 16
#define FPS 30
#ifdef GAMMA_ADJ
#define GAMMA_LEN 15
#define GAMMA_NUM 1
#define DEFAULT_GAMMA "36 29 12 22 1C 15 42 B7 2F 13 12 0A 11 0B 06\n"
#endif
/* ILI9163C commands */
#define CMD_NOP 0x00 /* Non operation*/
#define CMD_SWRESET 0x01 /* Soft Reset */
#define CMD_SLPIN 0x10 /* Sleep ON */
#define CMD_SLPOUT 0x11 /* Sleep OFF */
#define CMD_PTLON 0x12 /* Partial Mode ON */
#define CMD_NORML 0x13 /* Normal Display ON */
#define CMD_DINVOF 0x20 /* Display Inversion OFF */
#define CMD_DINVON 0x21 /* Display Inversion ON */
#define CMD_GAMMASET 0x26 /* Gamma Set (0x01[1],0x02[2],0x04[3],0x08[4]) */
#define CMD_DISPOFF 0x28 /* Display OFF */
#define CMD_DISPON 0x29 /* Display ON */
#define CMD_IDLEON 0x39 /* Idle Mode ON */
#define CMD_IDLEOF 0x38 /* Idle Mode OFF */
#define CMD_CLMADRS 0x2A /* Column Address Set */
#define CMD_PGEADRS 0x2B /* Page Address Set */
#define CMD_RAMWR 0x2C /* Memory Write */
#define CMD_RAMRD 0x2E /* Memory Read */
#define CMD_CLRSPACE 0x2D /* Color Space : 4K/65K/262K */
#define CMD_PARTAREA 0x30 /* Partial Area */
#define CMD_VSCLLDEF 0x33 /* Vertical Scroll Definition */
#define CMD_TEFXLON 0x34 /* Tearing Effect Line ON */
#define CMD_TEFXLOF 0x35 /* Tearing Effect Line OFF */
#define CMD_MADCTL 0x36 /* Memory Access Control */
#define CMD_PIXFMT 0x3A /* Interface Pixel Format */
#define CMD_FRMCTR1 0xB1 /* Frame Rate Control
(In normal mode/Full colors) */
#define CMD_FRMCTR2 0xB2 /* Frame Rate Control (In Idle mode/8-colors) */
#define CMD_FRMCTR3 0xB3 /* Frame Rate Control
(In Partial mode/full colors) */
#define CMD_DINVCTR 0xB4 /* Display Inversion Control */
#define CMD_RGBBLK 0xB5 /* RGB Interface Blanking Porch setting */
#define CMD_DFUNCTR 0xB6 /* Display Function set 5 */
#define CMD_SDRVDIR 0xB7 /* Source Driver Direction Control */
#define CMD_GDRVDIR 0xB8 /* Gate Driver Direction Control */
#define CMD_PWCTR1 0xC0 /* Power_Control1 */
#define CMD_PWCTR2 0xC1 /* Power_Control2 */
#define CMD_PWCTR3 0xC2 /* Power_Control3 */
#define CMD_PWCTR4 0xC3 /* Power_Control4 */
#define CMD_PWCTR5 0xC4 /* Power_Control5 */
#define CMD_VCOMCTR1 0xC5 /* VCOM_Control 1 */
#define CMD_VCOMCTR2 0xC6 /* VCOM_Control 2 */
#define CMD_VCOMOFFS 0xC7 /* VCOM Offset Control */
#define CMD_PGAMMAC 0xE0 /* Positive Gamma Correction Setting */
#define CMD_NGAMMAC 0xE1 /* Negative Gamma Correction Setting */
#define CMD_GAMRSEL 0xF2 /* GAM_R_SEL */
/*
This display:
http://www.ebay.com/itm/Replace-Nokia-5110-LCD-1-44-Red-Serial-128X128-SPI-Color-TFT-LCD-Display-Module-/271422122271
This particular display has a design error! The controller has 3 pins to
configure to constrain the memory and resolution to a fixed dimension (in
that case 128x128) but they leaved those pins configured for 128x160 so
there was several pixel memory addressing problems.
I solved by setup several parameters that dinamically fix the resolution as
needit so below the parameters for this display. If you have a strain or a
correct display (can happen with chinese) you can copy those parameters and
create setup for different displays.
*/
#ifdef RED
#define __OFFSET 32 /*see note 2 - this is the red version */
#else
#define __OFFSET 0 /*see note 2 - this is the black version */
#endif
static int init_display(struct fbtft_par *par)
{
fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
par->fbtftops.reset(par);
if (par->gpio.cs != -1)
gpio_set_value(par->gpio.cs, 0); /* Activate chip */
write_reg(par, CMD_SWRESET); /* software reset */
mdelay(500);
write_reg(par, CMD_SLPOUT); /* exit sleep */
mdelay(5);
write_reg(par, CMD_PIXFMT, 0x05); /* Set Color Format 16bit */
write_reg(par, CMD_GAMMASET, 0x02); /* default gamma curve 3 */
#ifdef GAMMA_ADJ
write_reg(par, CMD_GAMRSEL, 0x01); /* Enable Gamma adj */
#endif
write_reg(par, CMD_NORML);
write_reg(par, CMD_DFUNCTR, 0xff, 0x06);
/* Frame Rate Control (In normal mode/Full colors) */
write_reg(par, CMD_FRMCTR1, 0x08, 0x02);
write_reg(par, CMD_DINVCTR, 0x07); /* display inversion */
/* Set VRH1[4:0] & VC[2:0] for VCI1 & GVDD */
write_reg(par, CMD_PWCTR1, 0x0A, 0x02);
/* Set BT[2:0] for AVDD & VCL & VGH & VGL */
write_reg(par, CMD_PWCTR2, 0x02);
/* Set VMH[6:0] & VML[6:0] for VOMH & VCOML */
write_reg(par, CMD_VCOMCTR1, 0x50, 0x63);
write_reg(par, CMD_VCOMOFFS, 0);
write_reg(par, CMD_CLMADRS, 0, 0, 0, WIDTH); /* Set Column Address */
write_reg(par, CMD_PGEADRS, 0, 0, 0, HEIGHT); /* Set Page Address */
write_reg(par, CMD_DISPON); /* display ON */
write_reg(par, CMD_RAMWR); /* Memory Write */
return 0;
}
static void set_addr_win(struct fbtft_par *par, int xs, int ys,
int xe, int ye)
{
fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
switch (par->info->var.rotate) {
case 0:
write_reg(par, CMD_CLMADRS, xs >> 8, xs & 0xff, xe >> 8,
xe & 0xff);
write_reg(par, CMD_PGEADRS,
(ys + __OFFSET) >> 8, (ys + __OFFSET) & 0xff,
(ye + __OFFSET) >> 8, (ye + __OFFSET) & 0xff);
break;
case 90:
write_reg(par, CMD_CLMADRS,
(xs + __OFFSET) >> 8, (xs + __OFFSET) & 0xff,
(xe + __OFFSET) >> 8, (xe + __OFFSET) & 0xff);
write_reg(par, CMD_PGEADRS, ys >> 8, ys & 0xff, ye >> 8,
ye & 0xff);
break;
case 180:
case 270:
write_reg(par, CMD_CLMADRS, xs >> 8, xs & 0xff, xe >> 8,
xe & 0xff);
write_reg(par, CMD_PGEADRS, ys >> 8, ys & 0xff, ye >> 8,
ye & 0xff);
break;
default:
par->info->var.rotate = 0; /* Fix incorrect setting */
}
write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
}
/*
7) MY: 1(bottom to top), 0(top to bottom) Row Address Order
6) MX: 1(R to L), 0(L to R) Column Address Order
5) MV: 1(Exchanged), 0(normal) Row/Column exchange
4) ML: 1(bottom to top), 0(top to bottom) Vertical Refresh Order
3) RGB: 1(BGR), 0(RGB) Color Space
2) MH: 1(R to L), 0(L to R) Horizontal Refresh Order
1)
0)
MY, MX, MV, ML,RGB, MH, D1, D0
0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 //normal
1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 //Y-Mirror
0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 //X-Mirror
1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 //X-Y-Mirror
0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 //X-Y Exchange
1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 //X-Y Exchange, Y-Mirror
0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 //XY exchange
1 | 1 | 1 | 0 | 1 | 0 | 0 | 0
*/
static int set_var(struct fbtft_par *par)
{
u8 mactrl_data = 0; /* Avoid compiler warning */
fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
switch (par->info->var.rotate) {
case 0:
mactrl_data = 0x08;
break;
case 180:
mactrl_data = 0xC8;
break;
case 270:
mactrl_data = 0xA8;
break;
case 90:
mactrl_data = 0x68;
break;
}
/* Colorspcae */
if (par->bgr)
mactrl_data |= (1 << 2);
write_reg(par, CMD_MADCTL, mactrl_data);
write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
return 0;
}
#ifdef GAMMA_ADJ
#define CURVE(num, idx) curves[num*par->gamma.num_values + idx]
static int gamma_adj(struct fbtft_par *par, unsigned long *curves)
{
unsigned long mask[] = {
0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
0x1f, 0x3f, 0x0f, 0x0f, 0x7f, 0x1f,
0x3F, 0x3F, 0x3F, 0x3F, 0x3F};
int i, j;
fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
for (i = 0; i < GAMMA_NUM; i++)
for (j = 0; j < GAMMA_LEN; j++)
CURVE(i, j) &= mask[i*par->gamma.num_values + j];
write_reg(par, CMD_PGAMMAC,
CURVE(0, 0),
CURVE(0, 1),
CURVE(0, 2),
CURVE(0, 3),
CURVE(0, 4),
CURVE(0, 5),
CURVE(0, 6),
(CURVE(0, 7) << 4) | CURVE(0, 8),
CURVE(0, 9),
CURVE(0, 10),
CURVE(0, 11),
CURVE(0, 12),
CURVE(0, 13),
CURVE(0, 14),
CURVE(0, 15)
);
write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
return 0;
}
#undef CURVE
#endif
static struct fbtft_display display = {
.regwidth = 8,
.width = WIDTH,
.height = HEIGHT,
.bpp = BPP,
.fps = FPS,
#ifdef GAMMA_ADJ
.gamma_num = GAMMA_NUM,
.gamma_len = GAMMA_LEN,
.gamma = DEFAULT_GAMMA,
#endif
.fbtftops = {
.init_display = init_display,
.set_addr_win = set_addr_win,
.set_var = set_var,
#ifdef GAMMA_ADJ
.set_gamma = gamma_adj,
#endif
},
};
FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9163", &display);
MODULE_ALIAS("spi:" DRVNAME);
MODULE_ALIAS("platform:" DRVNAME);
MODULE_ALIAS("spi:ili9163");
MODULE_ALIAS("platform:ili9163");
MODULE_DESCRIPTION("FB driver for the ILI9163 LCD Controller");
MODULE_AUTHOR("Kozhevnikov Anatoly");
MODULE_LICENSE("GPL");
......@@ -702,6 +702,24 @@ static struct fbtft_device_display displays[] = {
}
}
}, {
.name = "nokia5110",
.spi = &(struct spi_board_info) {
.modalias = "fb_ili9163",
.max_speed_hz = 12000000,
.mode = SPI_MODE_0,
.platform_data = &(struct fbtft_platform_data) {
.display = {
.buswidth = 8,
.backlight = 1,
},
.bgr = true,
.gpios = (const struct fbtft_gpio []) {
{},
},
}
}
}, {
.name = "piscreen",
.spi = &(struct spi_board_info) {
.modalias = "fb_ili9486",
......
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