--- /dev/null
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction. Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License. This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2011 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief Himax HX8347 graphic driver
+ *
+ * \author Stefano Fedrigo <aleph@develer.com>
+ *
+ * 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 <cfg/debug.h>
+#include <drv/timer.h>
+
+// 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();
+}
--- /dev/null
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction. Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License. This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \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 <aleph@develer.com>
+ */
+
+#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 */
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