// SPDX-License-Identifier: GPL-2.0+ /* * 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). */ #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 … #define WIDTH … #define HEIGHT … #define BPP … #define FPS … #ifdef GAMMA_ADJ #define GAMMA_LEN … #define GAMMA_NUM … #define DEFAULT_GAMMA … #endif /* ILI9163C commands */ #define CMD_FRMCTR1 … /* (In normal mode/Full colors) */ #define CMD_FRMCTR2 … #define CMD_FRMCTR3 … /* (In Partial mode/full colors) */ #define CMD_DINVCTR … #define CMD_RGBBLK … #define CMD_DFUNCTR … #define CMD_SDRVDIR … #define CMD_GDRVDIR … #define CMD_PWCTR1 … #define CMD_PWCTR2 … #define CMD_PWCTR3 … #define CMD_PWCTR4 … #define CMD_PWCTR5 … #define CMD_VCOMCTR1 … #define CMD_VCOMCTR2 … #define CMD_VCOMOFFS … #define CMD_PGAMMAC … #define CMD_NGAMMAC … #define CMD_GAMRSEL … /* * 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 … #else #define __OFFSET … #endif static int init_display(struct fbtft_par *par) { … } static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye) { … } /* * 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) { … } #ifdef GAMMA_ADJ #define CURVE … static int gamma_adj(struct fbtft_par *par, u32 *curves) { static const unsigned long mask[] = { 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1f, 0x3f, 0x0f, 0x0f, 0x7f, 0x1f, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F}; int i, j; 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 Data to GRAM mode */ write_reg(par, MIPI_DCS_WRITE_MEMORY_START); return 0; } #undef CURVE #endif static struct fbtft_display display = …; FBTFT_REGISTER_DRIVER(…); MODULE_ALIAS(…) …; MODULE_ALIAS(…) …; MODULE_ALIAS(…) …; MODULE_ALIAS(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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