Driver for ili9163-based displays (for example: Nokia 5110) Signed-off-by: Kozhevnikov Anatoly <shilo.xyz@xxxxxxxxx> --- drivers/staging/fbtft/Kconfig | 6 + drivers/staging/fbtft/Makefile | 1 + drivers/staging/fbtft/fb_ili9163.c | 303 +++++++++++++++++++++++++++++++++++ drivers/staging/fbtft/fbtft_device.c | 18 +++ 4 files changed, 328 insertions(+) create mode 100644 drivers/staging/fbtft/fb_ili9163.c diff --git a/drivers/staging/fbtft/Kconfig b/drivers/staging/fbtft/Kconfig index 995a910..6cf0c58 100644 --- a/drivers/staging/fbtft/Kconfig +++ b/drivers/staging/fbtft/Kconfig @@ -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 diff --git a/drivers/staging/fbtft/Makefile b/drivers/staging/fbtft/Makefile index e773f0f..9e73bee 100644 --- a/drivers/staging/fbtft/Makefile +++ b/drivers/staging/fbtft/Makefile @@ -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 diff --git a/drivers/staging/fbtft/fb_ili9163.c b/drivers/staging/fbtft/fb_ili9163.c new file mode 100644 index 0000000..ed92a64 --- /dev/null +++ b/drivers/staging/fbtft/fb_ili9163.c @@ -0,0 +1,303 @@ +/* + * 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"); diff --git a/drivers/staging/fbtft/fbtft_device.c b/drivers/staging/fbtft/fbtft_device.c index b9f4c30..58a8302 100644 --- a/drivers/staging/fbtft/fbtft_device.c +++ b/drivers/staging/fbtft/fbtft_device.c @@ -676,6 +676,24 @@ 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", -- 2.3.3 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
