500 lines
12 KiB
C
500 lines
12 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: lcd-nano2g.c 28868 2010-12-21 06:59:17Z Buschel $
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*
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* Copyright (C) 2009 by Dave Chapman
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "hwcompat.h"
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#include "kernel.h"
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#include "lcd.h"
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#include "system.h"
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#include "cpu.h"
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#include "pmu-target.h"
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#include "power.h"
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#include "string.h"
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#define R_HORIZ_GRAM_ADDR_SET 0x200
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#define R_VERT_GRAM_ADDR_SET 0x201
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#define R_WRITE_DATA_TO_GRAM 0x202
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#define R_HORIZ_ADDR_START_POS 0x210
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#define R_HORIZ_ADDR_END_POS 0x211
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#define R_VERT_ADDR_START_POS 0x212
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#define R_VERT_ADDR_END_POS 0x213
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/* LCD type 1 register defines */
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#define R_COLUMN_ADDR_SET 0x2a
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#define R_ROW_ADDR_SET 0x2b
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#define R_MEMORY_WRITE 0x2c
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/** globals **/
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int lcd_type; /* also needed in debug-s5l8702.c */
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static struct dma_lli lcd_lli[(LCD_WIDTH * LCD_HEIGHT - 1) / 0xfff] CACHEALIGN_ATTR;
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static struct semaphore lcd_wakeup;
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static struct mutex lcd_mutex;
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static uint16_t lcd_dblbuf[LCD_HEIGHT][LCD_WIDTH];
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static bool lcd_ispowered;
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#define SLEEP 0
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#define CMD16 1
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#define DATA16 2
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#define REG15 3
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#define END 0xff
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/* powersave sequences */
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static const unsigned short lcd_sleep_sequence_01[] =
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{
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CMD16, 0x028, /* Display Off */
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SLEEP, 0x005, /* 50 ms */
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CMD16, 0x010, /* Sleep In Mode */
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SLEEP, 0x005, /* 50 ms */
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END
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};
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static const unsigned short lcd_deep_stby_sequence_23[] =
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{
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/* Display Off */
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REG15, 0x007, 0x0172,
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REG15, 0x030, 0x03ff,
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SLEEP, 0x00a,
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REG15, 0x007, 0x0120,
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REG15, 0x030, 0x0000,
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REG15, 0x100, 0x0780,
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REG15, 0x007, 0x0000,
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REG15, 0x101, 0x0260,
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REG15, 0x102, 0x00a9,
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SLEEP, 0x003,
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REG15, 0x100, 0x0700,
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/* Deep Standby Mode */
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REG15, 0x100, 0x0704,
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SLEEP, 0x005,
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END
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};
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#ifdef HAVE_LCD_SLEEP
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/* init sequences */
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static const unsigned short lcd_init_sequence_01[] =
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{
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CMD16, 0x011, /* Sleep Out Mode */
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SLEEP, 0x006, /* 60 ms */
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CMD16, 0x029, /* Display On */
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END
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};
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static const unsigned short lcd_init_sequence_23[] =
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{
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/* Display settings */
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REG15, 0x008, 0x0808,
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REG15, 0x010, 0x0013,
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REG15, 0x011, 0x0300,
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REG15, 0x012, 0x0101,
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REG15, 0x013, 0x0a03,
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REG15, 0x014, 0x0a0e,
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REG15, 0x015, 0x0a19,
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REG15, 0x016, 0x2402,
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REG15, 0x018, 0x0001,
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REG15, 0x090, 0x0021,
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/* Gamma settings */
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REG15, 0x300, 0x0307,
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REG15, 0x301, 0x0003,
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REG15, 0x302, 0x0402,
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REG15, 0x303, 0x0303,
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REG15, 0x304, 0x0300,
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REG15, 0x305, 0x0407,
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REG15, 0x306, 0x1c04,
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REG15, 0x307, 0x0307,
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REG15, 0x308, 0x0003,
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REG15, 0x309, 0x0402,
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REG15, 0x30a, 0x0303,
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REG15, 0x30b, 0x0300,
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REG15, 0x30c, 0x0407,
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REG15, 0x30d, 0x1c04,
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REG15, 0x310, 0x0707,
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REG15, 0x311, 0x0407,
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REG15, 0x312, 0x0306,
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REG15, 0x313, 0x0303,
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REG15, 0x314, 0x0300,
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REG15, 0x315, 0x0407,
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REG15, 0x316, 0x1c01,
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REG15, 0x317, 0x0707,
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REG15, 0x318, 0x0407,
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REG15, 0x319, 0x0306,
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REG15, 0x31a, 0x0303,
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REG15, 0x31b, 0x0300,
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REG15, 0x31c, 0x0407,
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REG15, 0x31d, 0x1c01,
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REG15, 0x320, 0x0206,
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REG15, 0x321, 0x0102,
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REG15, 0x322, 0x0404,
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REG15, 0x323, 0x0303,
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REG15, 0x324, 0x0300,
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REG15, 0x325, 0x0407,
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REG15, 0x326, 0x1c1f,
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REG15, 0x327, 0x0206,
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REG15, 0x328, 0x0102,
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REG15, 0x329, 0x0404,
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REG15, 0x32a, 0x0303,
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REG15, 0x32b, 0x0300,
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REG15, 0x32c, 0x0407,
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REG15, 0x32d, 0x1c1f,
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/* GRAM and Base Imagen settings (ili9326ds) */
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REG15, 0x400, 0x001d,
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REG15, 0x401, 0x0001,
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REG15, 0x205, 0x0060,
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/* Power settings */
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REG15, 0x007, 0x0001,
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REG15, 0x031, 0x0071,
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REG15, 0x110, 0x0001,
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REG15, 0x100, 0x17b0,
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REG15, 0x101, 0x0220,
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REG15, 0x102, 0x00bd,
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REG15, 0x103, 0x1500,
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REG15, 0x105, 0x0103,
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REG15, 0x106, 0x0105,
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/* Display On */
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REG15, 0x007, 0x0021,
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REG15, 0x001, 0x0110,
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REG15, 0x003, 0x0230,
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REG15, 0x002, 0x0500,
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REG15, 0x007, 0x0031,
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REG15, 0x030, 0x0007,
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SLEEP, 0x003,
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REG15, 0x030, 0x03ff,
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SLEEP, 0x006,
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REG15, 0x007, 0x0072,
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SLEEP, 0x00f,
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REG15, 0x007, 0x0173,
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END
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};
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#endif
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static inline void s5l_lcd_write_reg(int cmd, unsigned int data)
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{
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while (LCD_STATUS & 0x10);
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LCD_WCMD = cmd;
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while (LCD_STATUS & 0x10);
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/* 16-bit/1-transfer data format (ili9320ds s7.2.2) */
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LCD_WDATA = (data & 0x78ff) |
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((data & 0x0300) << 1) | ((data & 0x0400) << 5);
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}
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static inline void s5l_lcd_write_cmd(unsigned short cmd)
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{
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while (LCD_STATUS & 0x10);
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LCD_WCMD = cmd;
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}
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static inline void s5l_lcd_write_data(unsigned short data)
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{
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while (LCD_STATUS & 0x10);
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LCD_WDATA = data;
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}
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static void lcd_run_sequence(const unsigned short *seq)
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{
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unsigned short tmp;
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while (1) switch (*seq++)
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{
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case SLEEP:
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sleep(*seq++);
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break;
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case CMD16:
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s5l_lcd_write_cmd(*seq++);
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break;
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case DATA16:
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s5l_lcd_write_data(*seq++);
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break;
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case REG15:
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tmp = *seq++; /* avoid compiler warning */
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s5l_lcd_write_reg(tmp, *seq++);
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break;
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case END:
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default:
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/* bye */
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return;
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}
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}
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/*** hardware configuration ***/
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int lcd_default_contrast(void)
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{
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return 0x1f;
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}
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void lcd_set_contrast(int val)
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{
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(void)val;
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}
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void lcd_set_invert_display(bool yesno)
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{
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(void)yesno;
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}
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void lcd_set_flip(bool yesno)
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{
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(void)yesno;
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}
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bool lcd_active(void)
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{
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return lcd_ispowered;
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}
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void lcd_shutdown(void)
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{
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pmu_write(0x2b, 0); /* Kill the backlight, instantly. */
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pmu_write(0x29, 0);
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lcd_sleep();
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}
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void lcd_sleep(void)
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{
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mutex_lock(&lcd_mutex);
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lcd_run_sequence((lcd_type & 2) ? lcd_deep_stby_sequence_23
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: lcd_sleep_sequence_01);
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/* mask lcd controller clock gate */
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PWRCON(0) |= (1 << 1);
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lcd_ispowered = false;
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mutex_unlock(&lcd_mutex);
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}
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#ifdef HAVE_LCD_SLEEP
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void lcd_awake(void)
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{
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mutex_lock(&lcd_mutex);
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/* unmask lcd controller clock gate */
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PWRCON(0) &= ~(1 << 1);
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if (lcd_type & 2) {
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/* release from deep standby mode (ili9320ds s12.3) */
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for (int i = 0; i < 6; i++) {
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s5l_lcd_write_cmd(0x000);
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udelay(1000);
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}
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lcd_run_sequence(lcd_init_sequence_23);
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}
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else
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lcd_run_sequence(lcd_init_sequence_01);
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lcd_ispowered = true;
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mutex_unlock(&lcd_mutex);
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send_event(LCD_EVENT_ACTIVATION, NULL);
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}
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#endif
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/* LCD init */
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void lcd_init_device(void)
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{
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/* Detect lcd type */
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semaphore_init(&lcd_wakeup, 1, 0);
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mutex_init(&lcd_mutex);
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lcd_type = (PDAT6 & 0x30) >> 4;
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while (!(LCD_STATUS & 0x2));
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LCD_CONFIG = 0x80100db0;
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lcd_ispowered = true;
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}
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/*** Update functions ***/
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static inline void lcd_write_pixel(fb_data pixel)
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{
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mutex_lock(&lcd_mutex);
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LCD_WDATA = pixel;
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mutex_unlock(&lcd_mutex);
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}
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/* Update the display.
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This must be called after all other LCD functions that change the display. */
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void lcd_update(void) ICODE_ATTR;
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void lcd_update(void)
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{
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lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
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}
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/* Line write helper function. */
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extern void lcd_write_line(const fb_data *addr,
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int pixelcount,
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const unsigned int lcd_base_addr);
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static void displaylcd_setup(int x, int y, int width, int height) ICODE_ATTR;
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static void displaylcd_setup(int x, int y, int width, int height)
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{
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mutex_lock(&lcd_mutex);
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while (DMAC0C4CONFIG & 1) semaphore_wait(&lcd_wakeup, HZ / 10);
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int xe = (x + width) - 1; /* max horiz */
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int ye = (y + height) - 1; /* max vert */
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if (lcd_type & 2) {
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s5l_lcd_write_reg(R_HORIZ_ADDR_START_POS, x);
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s5l_lcd_write_reg(R_HORIZ_ADDR_END_POS, xe);
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s5l_lcd_write_reg(R_VERT_ADDR_START_POS, y);
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s5l_lcd_write_reg(R_VERT_ADDR_END_POS, ye);
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s5l_lcd_write_reg(R_HORIZ_GRAM_ADDR_SET, x);
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s5l_lcd_write_reg(R_VERT_GRAM_ADDR_SET, y);
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s5l_lcd_write_cmd(R_WRITE_DATA_TO_GRAM);
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} else {
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s5l_lcd_write_cmd(R_COLUMN_ADDR_SET);
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s5l_lcd_write_data(x >> 8);
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s5l_lcd_write_data(x & 0xff);
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s5l_lcd_write_data(xe >> 8);
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s5l_lcd_write_data(xe & 0xff);
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s5l_lcd_write_cmd(R_ROW_ADDR_SET);
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s5l_lcd_write_data(y >> 8);
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s5l_lcd_write_data(y & 0xff);
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s5l_lcd_write_data(ye >> 8);
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s5l_lcd_write_data(ye & 0xff);
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s5l_lcd_write_cmd(R_MEMORY_WRITE);
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}
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}
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static void displaylcd_dma(int pixels) ICODE_ATTR;
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static void displaylcd_dma(int pixels)
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{
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int i;
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void* data = lcd_dblbuf;
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for (i = -1; i < (int)ARRAYLEN(lcd_lli) && pixels > 0; i++, pixels -= 0xfff)
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{
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bool last = i + 1 >= (int)ARRAYLEN(lcd_lli) || pixels <= 0xfff;
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struct dma_lli* lli = i < 0 ? (struct dma_lli*)((int)&DMAC0C4LLI) : &lcd_lli[i];
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lli->srcaddr = data;
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lli->dstaddr = (void*)((int)&LCD_WDATA);
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lli->nextlli = last ? NULL : &lcd_lli[i + 1];
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lli->control = 0x70240000 | (last ? pixels : 0xfff)
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| (last ? 0x80000000 : 0) | 0x4000000;
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data += 0x1ffe;
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}
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commit_dcache();
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DMAC0C4CONFIG = 0x88c1;
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mutex_unlock(&lcd_mutex);
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}
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void INT_DMAC0C4(void) ICODE_ATTR;
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void INT_DMAC0C4(void)
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{
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DMAC0INTTCCLR = 0x10;
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semaphore_release(&lcd_wakeup);
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}
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/* Update a fraction of the display. */
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void lcd_update_rect(int, int, int, int) ICODE_ATTR;
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void lcd_update_rect(int x, int y, int width, int height)
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{
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int pixels = width * height;
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fb_data* p = &lcd_framebuffer[y][x];
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uint16_t* out = lcd_dblbuf[0];
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#ifdef HAVE_LCD_SLEEP
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if (!lcd_active()) return;
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#endif
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displaylcd_setup(x, y, width, height);
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/* Copy display bitmap to hardware */
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if (LCD_WIDTH == width) {
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/* Write all lines at once */
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memcpy(out, p, pixels * 2);
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} else {
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do {
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/* Write a single line */
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memcpy(out, p, width * 2);
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p += LCD_WIDTH;
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out += width;
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} while (--height);
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}
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displaylcd_dma(pixels);
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}
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/* Line write helper function for lcd_yuv_blit. Writes two lines of yuv420. */
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extern void lcd_write_yuv420_lines(unsigned char const * const src[3],
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uint16_t* outbuf,
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int width,
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int stride);
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/* Blit a YUV bitmap directly to the LCD */
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void lcd_blit_yuv(unsigned char * const src[3],
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int src_x, int src_y, int stride,
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int x, int y, int width, int height) ICODE_ATTR;
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void lcd_blit_yuv(unsigned char * const src[3],
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int src_x, int src_y, int stride,
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int x, int y, int width, int height)
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{
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unsigned int z;
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unsigned char const * yuv_src[3];
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#ifdef HAVE_LCD_SLEEP
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if (!lcd_active()) return;
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#endif
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width = (width + 1) & ~1; /* ensure width is even */
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int pixels = width * height;
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uint16_t* out = lcd_dblbuf[0];
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z = stride * src_y;
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yuv_src[0] = src[0] + z + src_x;
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yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
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yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
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displaylcd_setup(x, y, width, height);
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height >>= 1;
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do {
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lcd_write_yuv420_lines(yuv_src, out, width, stride);
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yuv_src[0] += stride << 1;
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yuv_src[1] += stride >> 1; /* Skip down one chroma line */
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yuv_src[2] += stride >> 1;
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out += width << 1;
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} while (--height);
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displaylcd_dma(pixels);
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}
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