From dcff838bb2bb2cf867079c742c27143c5c5652d8 Mon Sep 17 00:00:00 2001 From: aleph Date: Sun, 27 Feb 2011 15:06:44 +0000 Subject: [PATCH] Add driver for Himax HX8347 LCD controller. git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4731 38d2e660-2303-0410-9eaa-f027e97ec537 --- bertos/drv/lcd_hx8347.c | 318 ++++++++++++++++++++++++++++++++++++++++ bertos/drv/lcd_hx8347.h | 58 ++++++++ bertos/hw/hw_hx8347.h | 81 ++++++++++ 3 files changed, 457 insertions(+) create mode 100644 bertos/drv/lcd_hx8347.c create mode 100644 bertos/drv/lcd_hx8347.h create mode 100644 bertos/hw/hw_hx8347.h diff --git a/bertos/drv/lcd_hx8347.c b/bertos/drv/lcd_hx8347.c new file mode 100644 index 00000000..e0d99458 --- /dev/null +++ b/bertos/drv/lcd_hx8347.c @@ -0,0 +1,318 @@ +/** + * \file + * + * + * \brief Himax HX8347 graphic driver + * + * \author Stefano Fedrigo + * + * Display initialization sequence is based on Atmel's softpack library + * implementation, see license below. + */ + +/* ---------------------------------------------------------------------------- + * ATMEL Microcontroller Software Support + * ---------------------------------------------------------------------------- + * Copyright (c) 2010, Atmel Corporation + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the disclaimer below. + * + * Atmel's name may not be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * ---------------------------------------------------------------------------- + */ + +#include "lcd_hx8347.h" + +#include "hw/hw_hx8347.h" +#include +#include + +// Himax HX8347 chip id +#define HX8347_ID_HIMAX 0x47 + + +static uint16_t lcd_row[LCD_WIDTH]; + + +struct lcd_hx8347_reg +{ + uint8_t cmd; // Register index, if 0xFF wait for value ms + uint8_t data; // Register value +}; + +static const struct lcd_hx8347_reg init_seq[] = +{ + // Start internal OSC + { 0x19, 0x49 }, // OSCADJ=10 0000, OSD_EN=1 //60Hz + { 0x93, 0x0C }, // RADJ=1100 + + // Power on flow + { 0x44, 0x4D }, // VCM=100 1101 + { 0x45, 0x11 }, // VDV=1 0001 + { 0x20, 0x40 }, // BT=0100 + { 0x1D, 0x07 }, // VC1=111 + { 0x1E, 0x00 }, // VC3=000 + { 0x1F, 0x04 }, // VRH=0100 + + { 0x1C, 0x04 }, // AP=100 + { 0x1B, 0x10 }, // GASENB=0, PON=1, DK=0, XDK=0, DDVDH_TRI=0, STB=0 + { 0xFF, 50 }, // 50 ms delay + + { 0x43, 0x80 }, // Set VCOMG=1 + { 0xFF, 50 }, // 50 ms delay + +#if 0 + // Gamma for CMO 2.8 + { 0x46, 0x95 }, + { 0x47, 0x51 }, + { 0x48, 0x00 }, + { 0x49, 0x36 }, + { 0x4A, 0x11 }, + { 0x4B, 0x66 }, + { 0x4C, 0x14 }, + { 0x4D, 0x77 }, + { 0x4E, 0x13 }, + { 0x4F, 0x4C }, + { 0x50, 0x46 }, + { 0x51, 0x46 }, +#endif + + // 240x320 window setting + { 0x02, 0x00 }, // Column address start2 + { 0x03, 0x00 }, // Column address start1 + { 0x04, 0x00 }, // Column address end2 + { 0x05, 0xEF }, // Column address end1 + { 0x06, 0x00 }, // Row address start2 + { 0x07, 0x00 }, // Row address start1 + { 0x08, 0x01 }, // Row address end2 + { 0x09, 0x3F }, // Row address end1 + + // Display Setting + { 0x01, 0x06 }, // IDMON=0, INVON=1, NORON=1, PTLON=0 +// { 0x16, 0xC8 }, // MY=1, MX=1, MV=0, BGR=1 + { 0x16, 0x68 }, // MY=0, MX=1, MV=1, RGB XY exchange X mirror + { 0x23, 0x95 }, // N_DC=1001 0101 + { 0x24, 0x95 }, // P_DC=1001 0101 + { 0x25, 0xFF }, // I_DC=1111 1111 + { 0x27, 0x06 }, // N_BP=0000 0110 + { 0x28, 0x06 }, // N_FP=0000 0110 + { 0x29, 0x06 }, // P_BP=0000 0110 + { 0x2A, 0x06 }, // P_FP=0000 0110 + { 0x2C, 0x06 }, // I_BP=0000 0110 + { 0x2D, 0x06 }, // I_FP=0000 0110 + { 0x3A, 0x01 }, // N_RTN=0000, N_NW=001 + { 0x3B, 0x01 }, // P_RTN=0000, P_NW=001 + { 0x3C, 0xF0 }, // I_RTN=1111, I_NW=000 + { 0x3D, 0x00 }, // DIV=00 + { 0x3E, 0x38 }, // SON=38h + { 0x40, 0x0F }, // GDON=0Fh + { 0x41, 0xF0 }, // GDOF=F0h +}; + +/* + * Write to an LCD register. + */ +static void regWrite(uint8_t reg, uint16_t val) +{ + hx8347_cmd(reg); + hx8347_write(val); +} + +/* + * Read data from a LCD register. + */ +static uint16_t regRead(uint8_t reg) +{ + hx8347_cmd(reg); + return hx8347_read(); +} + +/* + * Write data in a buffer to the LCD controller. + */ +static void bufferWrite(const uint16_t *buf, uint16_t size) +{ + uint16_t i; + for (i = 0 ; i < size; ++i) + hx8347_write(buf[i]); +} + +static void lcd_startBlit(uint16_t x, uint16_t y, uint16_t width, uint16_t height) +{ + ASSERT((x + width) <= LCD_WIDTH); + ASSERT((y + height) <= LCD_HEIGHT); + + regWrite(0x02, x >> 8); + regWrite(0x03, x & 0xff); + regWrite(0x06, y >> 8); + regWrite(0x07, y & 0xff); + + regWrite(0x04, (x + width) >> 8); + regWrite(0x05, (x + width) & 0xff); + regWrite(0x08, (y + height) >> 8); + regWrite(0x09, (y + height) & 0xff); +} + +/* + * Refresh a bitmap on screen + */ +void lcd_hx8347_blitBitmap(const Bitmap *bm) +{ + uint8_t mask; + int i, l, r; + + lcd_startBlit(0, 0, bm->width, bm->height); + + for (l = 0; l < bm->height / 8; l++) + { + for (mask = 1; mask; mask <<= 1) + { + for (i = 0; i < bm->width; i++) + { + if (bm->raster[l * bm->width + i] & mask) + lcd_row[i] = 0x0000; + else + lcd_row[i] = 0xFFFF; + } + hx8347_cmd(0x22); + bufferWrite(lcd_row, bm->width); + } + } + + for (r = 0, mask = 1; r < bm->height % 8; r++, mask <<= 1) + { + for (i = 0; i < bm->width; i++) + { + if (bm->raster[l * bm->width + i] & mask) + lcd_row[i] = 0x0000; + else + lcd_row[i] = 0xFFFF; + } + hx8347_cmd(0x22); + bufferWrite(lcd_row, bm->width); + } +} +#if 0 +/* + * Blit a 24 bit color raw raster directly on screen + */ +void lcd_hx8347_blitBitmap24(int x, int y, int width, int height, const char *bmp) +{ + int l, r; + + lcd_startBlit(x, y, width, height); + + for (l = 0; l < height; l++) + { + for (r = 0; r < width; r++) + { + lcd_row[r] = + (((uint16_t)bmp[1] << 11) & 0xE000) | + (((uint16_t)bmp[2] << 5) & 0x1F00) | + (((uint16_t)bmp[0] << 0) & 0x00F8) | + (((uint16_t)bmp[1] >> 5) & 0x0007); + bmp += 3; + } + + lcd_cmd(0x22); + lcd_data(lcd_row, width); + } +} +#endif +/** + * Turn off display. + */ +void lcd_hx8347_off(void) +{ + regWrite(0x90, 0); // SAP=0000 0000 + regWrite(0x26, 0); // GON=0, DTE=0, D=00 +} + +/** + * Turn on display. + */ +void lcd_hx8347_on(void) +{ + regWrite(0x90, 0x7F); // SAP=0111 1111 + regWrite(0x26, 0x04); // GON=0, DTE=0, D=01 + timer_delay(100); + regWrite(0x26, 0x24); // GON=1, DTE=0, D=01 + regWrite(0x26, 0x2C); // GON=1, DTE=0, D=11 + timer_delay(100); + regWrite(0x26, 0x3C); // GON=1, DTE=1, D=11 +} + +/** + * Display initialization. + */ +void lcd_hx8347_init(void) +{ + unsigned i; + uint16_t chip_id; + + hx8347_busInit(); + lcd_hx8347_off(); + + // Check chip id + if ((chip_id = regRead(0x67)) != HX8347_ID_HIMAX) + { + kprintf("HX8347 chip id read error or wrong id (0x%x), skipping initialization.\n", chip_id); + return; + } + + for (i = 0; i < countof(init_seq); i++) + { + if (init_seq[i].cmd != 0xFF) + regWrite(init_seq[i].cmd, init_seq[i].data); + else + timer_delay(init_seq[i].data); + } + + lcd_hx8347_on(); +} diff --git a/bertos/drv/lcd_hx8347.h b/bertos/drv/lcd_hx8347.h new file mode 100644 index 00000000..78b57de3 --- /dev/null +++ b/bertos/drv/lcd_hx8347.h @@ -0,0 +1,58 @@ +/** + * \file + * + * + * \brief Himax HX8347 graphic driver + * + * \author Stefano Fedrigo + * + * $WIZ$ module_name = "lcd_hx8347" + * $WIZ$ module_hw = "bertos/hw/hw_hx8347.h" + * $WIZ$ module_depends = "timer" + */ + +#ifndef LCD_HX8347_H +#define LCD_HX8347_H + +#include /* Bitmap */ + +#include + +#define LCD_WIDTH 320 +#define LCD_HEIGHT 240 + +void lcd_hx8347_init(void); +void lcd_hx8347_on(void); +void lcd_hx8347_off(void); +void lcd_hx8347_blitBitmap(const Bitmap *bm); +void lcd_hx8347_blitBitmap24(int x, int y, int width, int height, const char *bmp); + +#endif /* LCD_HX8347_H */ diff --git a/bertos/hw/hw_hx8347.h b/bertos/hw/hw_hx8347.h new file mode 100644 index 00000000..8f60a881 --- /dev/null +++ b/bertos/hw/hw_hx8347.h @@ -0,0 +1,81 @@ +/** + * \file + * + * + * \brief HX8347 low-level hardware macros for Atmel SAM3X-EK board. + * + * The LCD controller is connected to the cpu static memory controller. + * LCD has 16 data lines and usual RS/WR/RD lines. The data lines + * are connected to the SMC data bus (D0-15), while the SCM address bus + * (A1 only) is used to drive the RS pin. WR/RD are connected to SMC's + * NWE and NRD respectively. + * + * \author Stefano Fedrigo + */ + +#ifndef HW_HX8347_H +#define HW_HX8347_H + +#warning TODO: This is an example implementation, you must implement it! + +/** + * Send a command to LCD controller. + */ +INLINE void hx8347_cmd(uint8_t cmd) +{ + /* Implement me */ +} + +/** + * Send data to LCD controller. + */ +INLINE void hx8347_write(uint16_t data) +{ + /* Implement me */ +} + +/** + * Read data from LCD controller. + */ +INLINE uint16_t hx8347_read(void) +{ + /* Implement me */ +} + +/** + * Bus initialization: setup hardware where LCD is connected. + */ +INLINE void hx8347_busInit(void) +{ + /* Implement me */ +} + +#endif /* HW_HX8347_H */ -- 2.25.1