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Meizu M6SP: initial LCD driver (compiles but is untested)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22500 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken
parent
1747a33fcc
commit
400cd026f3
1 changed files with 417 additions and 105 deletions
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@ -7,7 +7,7 @@
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Alan Korr
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* Copyright (C) 2009 Bertrik Sikken
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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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@ -18,118 +18,430 @@
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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 <inttypes.h>
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#include "config.h"
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#include "s5l8700.h"
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#include "lcd.h"
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/* LCD driver for the Meizu M6 SP using the CLCD controller in the S5L8700
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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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The Meizu M6 SP can have two different LCDs, the S6D0139 and another
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(yet unknown) type, the exact type is detected at run-time.
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/*** definitions ***/
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Open issues:
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* untested on actual hardware
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* use 16-bit pixel format, currently pixels are converted to a 32-bit pixel
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format in lcd_update_rect, that is not natively supported yet in Rockbox.
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*/
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/* LCD SPI connections */
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#define LCD_SPI_SSn (1<<1) /* on PDAT7 */
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#define LCD_SPI_MISO (1<<2) /* on PDAT3 */
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#define LCD_SPI_MOSI (1<<6) /* on PDAT3 */
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#define LCD_SPI_SCLK (1<<7) /* on PDAT3 */
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#define LCD_TYPE1_ID 0x139 /* id for LCD type S6D0139 */
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static int lcd_type = 0;
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/** globals **/
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static int xoffset; /* needed for flip */
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/*** hardware configuration ***/
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int lcd_default_contrast(void)
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/* local frame buffer, keeps pixels in 32-bit words in format 0x00RRGGBB */
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static uint32_t lcd_local_fb[LCD_HEIGHT][LCD_WIDTH];
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/* simple and crude delay */
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static void lcd_delay(int count)
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{
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volatile int i;
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for (i = 0; i < count; i++);
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}
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/* write 'data_out' of length 'bits' over SPI and return received data */
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static unsigned int lcd_spi_transfer(int bits, unsigned int data_out)
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{
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unsigned int data_in = 0;
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/* SSn active */
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PDAT7 &= ~LCD_SPI_SSn;
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lcd_delay(10);
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/* send and receive data */
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while (bits--) {
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/* CLK low */
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PDAT3 &= ~LCD_SPI_SCLK;
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/* set MOSI */
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if (data_out & (1 << bits)) {
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PDAT3 |= LCD_SPI_MOSI;
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}
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else {
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PDAT3 &= ~LCD_SPI_MOSI;
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}
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/* delay */
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lcd_delay(10);
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/* sample MISO */
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data_in <<= 1;
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if (PDAT3 & LCD_SPI_MISO) {
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data_in |= 1;
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}
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/* CLK high */
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PDAT3 |= LCD_SPI_SCLK;
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/* delay */
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lcd_delay(10);
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}
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/* SSn inactive */
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PDAT7 |= LCD_SPI_SSn;
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lcd_delay(10);
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return data_in;
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}
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/* initialize the lcd SPI port interface */
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static void lcd_spi_init(void)
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{
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/* configure SSn (P7.1) as output */
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PCON7 = (PCON7 & ~0x000000F0) | 0x00000010;
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/* configure MISO (P3.2) input, MOSI (P3.6) output, SCLK (P3.7) output */
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PCON3 = (PCON3 & ~0xFF000F00) | 0x11000000;
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/* set all outputs high */
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PDAT7 |= LCD_SPI_SSn;
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PDAT3 |= (LCD_SPI_MOSI | LCD_SPI_SCLK);
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}
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/* read LCD identification word over SPI */
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static unsigned int lcd_read_reg(unsigned reg)
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{
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unsigned int data;
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lcd_spi_transfer(24, (0x74 << 16) | reg); //0111.0100
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data = lcd_spi_transfer(24, (0x77 << 16)); //0111.0111
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return data & 0xFFFF;
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}
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/* write LCD register over SPI */
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static void lcd_write_reg(unsigned char reg, unsigned int data)
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{
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lcd_spi_transfer(24, (0x74 << 16) | reg); //0111.0100
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lcd_spi_transfer(24, (0x76 << 16) | data); //0111.0110
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}
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/* enable/disable clock signals towards the lcd */
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static void lcd_controller_power(bool on)
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{
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return 0x1f;
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}
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if (on) {
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LCDCON1 |= 0x80003;
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}
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else {
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LCDCON1 &= ~0x80003;
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}
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}
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/* lcd init configuration for lcd type 1 */
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static void lcd_init1(void)
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{
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lcd_write_reg(0x07, 0x0000); /* display control */
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lcd_write_reg(0x13, 0x0000); /* power control 3 */
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lcd_delay(166670);
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lcd_write_reg(0x11, 0x3304); /* power control 2 */
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lcd_write_reg(0x14, 0x1300); /* power control 4 */
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lcd_write_reg(0x10, 0x1A20); /* power control 1 */
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lcd_write_reg(0x13, 0x0040); /* power control 3 */
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lcd_delay(833350);
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lcd_write_reg(0x13, 0x0060); /* power control 3 */
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lcd_write_reg(0x13, 0x0070); /* power control 3 */
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lcd_delay(3333400);
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lcd_write_reg(0x01, 0x0127); /* driver output control */
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lcd_write_reg(0x02, 0x0700); /* lcd driving waveform control */
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lcd_write_reg(0x03, 0x1030); /* entry mode */
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lcd_write_reg(0x08, 0x0208); /* blank period control 1 */
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lcd_write_reg(0x0B, 0x0620); /* frame cycle control */
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lcd_write_reg(0x0C, 0x0110); /* external interface control */
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lcd_write_reg(0x30, 0x0120); /* gamma control 1 */
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lcd_write_reg(0x31, 0x0117); /* gamma control 2 */
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lcd_write_reg(0x32, 0x0000); /* gamma control 3 */
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lcd_write_reg(0x33, 0x0305); /* gamma control 4 */
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lcd_write_reg(0x34, 0x0717); /* gamma control 5 */
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lcd_write_reg(0x35, 0x0124); /* gamma control 6 */
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lcd_write_reg(0x36, 0x0706); /* gamma control 7 */
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lcd_write_reg(0x37, 0x0503); /* gamma control 8 */
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lcd_write_reg(0x38, 0x1F03); /* gamma control 9 */
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lcd_write_reg(0x39, 0x0009); /* gamma control 10 */
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lcd_write_reg(0x40, 0x0000); /* gate scan position */
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lcd_write_reg(0x41, 0x0000); /* vertical scroll control */
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lcd_write_reg(0x42, 0x013F); /* 1st screen driving position (end) */
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lcd_write_reg(0x43, 0x0000); /* 1st screen driving position (start) */
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lcd_write_reg(0x44, 0x013F); /* 2nd screen driving position (end) */
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lcd_write_reg(0x45, 0x0000); /* 2nd screen driving position (start) */
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lcd_write_reg(0x46, 0xEF00); /* horizontal window address */
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lcd_write_reg(0x47, 0x013F); /* vertical window address (end) */
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lcd_write_reg(0x48, 0x0000); /* vertical window address (start) */
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lcd_write_reg(0x07, 0x0015); /* display control */
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lcd_delay(500000);
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lcd_write_reg(0x07, 0x0017); /* display control */
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lcd_write_reg(0x20, 0x0000); /* RAM address set (low part) */
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lcd_write_reg(0x21, 0x0000); /* RAM address set (high part) */
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lcd_write_reg(0x22, 0x0000); /* write data to GRAM */
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}
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/* lcd init configuration for lcd type 2 */
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static void lcd_init2(void)
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{
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lcd_write_reg(0x07, 0x0000);
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lcd_write_reg(0x12, 0x0000);
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lcd_delay(166670);
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lcd_write_reg(0x11, 0x000C);
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lcd_write_reg(0x12, 0x0A1C);
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lcd_write_reg(0x13, 0x0022);
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lcd_write_reg(0x14, 0x0000);
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lcd_write_reg(0x10, 0x7404);
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lcd_write_reg(0x11, 0x0738);
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lcd_write_reg(0x10, 0x7404);
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lcd_delay(833350);
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lcd_write_reg(0x07, 0x0009);
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lcd_write_reg(0x12, 0x065C);
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lcd_delay(3333400);
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lcd_write_reg(0x01, 0xE127);
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lcd_write_reg(0x02, 0x0300);
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lcd_write_reg(0x03, 0x1100);
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lcd_write_reg(0x08, 0x0008);
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lcd_write_reg(0x0B, 0x0000);
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lcd_write_reg(0x0C, 0x0000);
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lcd_write_reg(0x0D, 0x0007);
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lcd_write_reg(0x15, 0x0003);
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lcd_write_reg(0x16, 0x0014);
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lcd_write_reg(0x17, 0x0000);
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lcd_write_reg(0x30, 0x0503);
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lcd_write_reg(0x31, 0x0303);
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lcd_write_reg(0x32, 0x0305);
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lcd_write_reg(0x33, 0x0202);
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lcd_write_reg(0x34, 0x0204);
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lcd_write_reg(0x35, 0x0404);
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lcd_write_reg(0x36, 0x0402);
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lcd_write_reg(0x37, 0x0202);
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lcd_write_reg(0x38, 0x1000);
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lcd_write_reg(0x39, 0x1000);
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lcd_write_reg(0x07, 0x0009);
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lcd_delay(666680);
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lcd_write_reg(0x07, 0x0109);
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lcd_delay(666680);
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lcd_write_reg(0x07, 0x010B);
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}
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/* lcd enable for lcd type 1 */
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static void lcd_enable1(bool on)
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{
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if (on) {
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lcd_write_reg(0x00, 0x0001); /* start oscillation */
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lcd_delay(166670);
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lcd_write_reg(0x10, 0x0000); /* power control 1 */
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lcd_delay(166670);
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lcd_write_reg(0x11, 0x3304); /* power control 2 */
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lcd_write_reg(0x14, 0x1300); /* power control 4 */
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lcd_write_reg(0x10, 0x1A20); /* power control 1 */
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lcd_write_reg(0x07, 0x0015); /* display control */
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lcd_delay(500000);
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lcd_write_reg(0x20, 0x0000); /* RAM address set (low part) */
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lcd_write_reg(0x21, 0x0000); /* RAM address set (high part) */
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lcd_write_reg(0x22, 0x0000); /* write data to GRAM */
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}
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else {
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lcd_write_reg(0x07, 0x0016); /* display control */
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lcd_delay(166670 * 4);
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lcd_write_reg(0x07, 0x0004); /* display control */
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lcd_delay(166670 * 4);
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lcd_write_reg(0x10, 0x1E21); /* power control 1 */
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lcd_delay(166670);
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}
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}
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/* lcd enable for lcd type 2 */
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static void lcd_enable2(bool on)
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{
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if (on) {
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lcd_write_reg(0x10, 0x0400);
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lcd_delay(666680);
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lcd_write_reg(0x07, 0x0000);
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lcd_write_reg(0x12, 0x0000);
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lcd_delay(166670);
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lcd_write_reg(0x11, 0x000C);
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lcd_write_reg(0x12, 0x0A1C);
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lcd_write_reg(0x13, 0x0022);
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lcd_write_reg(0x14, 0x0000);
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lcd_write_reg(0x10, 0x7404);
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lcd_delay(833350);
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lcd_write_reg(0x07, 0x0009);
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lcd_write_reg(0x12, 0x065C);
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lcd_delay(3333400);
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lcd_write_reg(0x0B, 0x0000);
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lcd_write_reg(0x07, 0x0009);
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lcd_delay(666680);
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lcd_write_reg(0x07, 0x0109);
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lcd_delay(666680);
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lcd_write_reg(0x07, 0x010B);
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}
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else {
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lcd_write_reg(0x0B, 0x0000);
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lcd_write_reg(0x07, 0x0009);
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lcd_delay(666680);
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lcd_write_reg(0x07, 0x0008);
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lcd_delay(666680);
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lcd_write_reg(0x10, 0x0400);
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lcd_write_reg(0x10, 0x0401);
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lcd_delay(166670);
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}
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}
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/* turn both the lcd controller and the lcd itself on or off */
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void lcd_enable(bool on)
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{
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if (on) {
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/* enable controller clock */
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PWRCON &= ~(1 << 18);
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lcd_controller_power(true);
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lcd_delay(166670);
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}
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/* call type specific power function */
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if (lcd_type == 1) {
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lcd_enable1(on);
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}
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else {
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lcd_enable2(on);
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}
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if (!on) {
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lcd_controller_power(false);
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/* disable controller clock */
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PWRCON |= (1 << 18);
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}
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}
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void lcd_set_contrast(int val)
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{
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}
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/* initialise the lcd controller inside the s5l8700 */
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static void lcd_controller_init(void)
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{
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PWRCON &= ~(1 << 18);
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LCDCON1 = 0x991DC;
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LCDCON2 = 0xE8;
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LCDTCON1 = (lcd_type == 1) ? 0x70103 : 0x30303;
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LCDTCON2 = (lcd_type == 1) ? 0x70103 : 0x30703;
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LCDTCON3 = 0x9F8EF;
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LCDOSD1 = 0;
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LCDOSD2 = 0;
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LCDOSD3 = 0;
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LCDB1SADDR1 = 0;
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LCDB2SADDR1 = 0;
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LCDF1SADDR1 = 0;
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LCDF2SADDR1 = 0;
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LCDB1SADDR2 = 0;
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LCDB2SADDR2 = 0;
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LCDF1SADDR2 = 0;
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LCDF2SADDR2 = 0;
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LCDB1SADDR3 = 0;
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LCDB2SADDR3 = 0;
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LCDF1SADDR3 = 0;
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LCDF2SADDR3 = 0;
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LCDKEYCON = 0;
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LCDCOLVAL = 0;
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LCDBGCON = 0;
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LCDFGCON = 0;
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LCDDITHMODE = 0;
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LCDINTCON = 0;
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}
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void lcd_init_device(void)
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{
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unsigned int lcd_id;
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/* configure LCD SPI pins */
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lcd_spi_init();
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/* identify display through SPI */
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lcd_id = lcd_read_reg(0);
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lcd_type = (lcd_id == LCD_TYPE1_ID) ? 1 : 2;
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/* configure LCD pins */
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PCON_ASRAM = 1;
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/* init LCD controller */
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lcd_controller_init();
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/* display specific init sequence */
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if (lcd_type == 1) {
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lcd_init1();
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}
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else {
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lcd_init2();
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}
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/* set active background buffer */
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LCDCON1 &= ~(1 << 21); /* clear BDBCON */
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/* set background buffer address */
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LCDB1SADDR1 = (uint32_t) &lcd_local_fb[0][0];
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LCDB1SADDR2 = (uint32_t) &lcd_local_fb[LCD_HEIGHT][0];
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lcd_enable(true);
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}
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void lcd_set_invert_display(bool yesno)
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{
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}
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/* turn the display upside down (call lcd_update() afterwards) */
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void lcd_set_flip(bool yesno)
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{
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/* TODO: flip mode isn't working. The commands in the else part of
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this function are how the original firmware inits the LCD */
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if (yesno)
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{
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xoffset = 132 - LCD_WIDTH; /* 132 colums minus the 128 we have */
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}
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else
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{
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xoffset = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* LCD init */
|
||||
void lcd_init_device(void)
|
||||
{
|
||||
}
|
||||
|
||||
/*** Update functions ***/
|
||||
|
||||
/* Performance function that works with an external buffer
|
||||
note that by and bheight are in 8-pixel units! */
|
||||
void lcd_blit_mono(const unsigned char *data, int x, int by, int width,
|
||||
int bheight, int stride)
|
||||
{
|
||||
/* Copy display bitmap to hardware */
|
||||
while (bheight--)
|
||||
{
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Performance function that works with an external buffer
|
||||
note that by and bheight are in 8-pixel units! */
|
||||
void lcd_blit_grey_phase_blit(unsigned char *values, unsigned char *phases,
|
||||
int x, int by, int width, int bheight, int stride)
|
||||
{
|
||||
(void)values;
|
||||
(void)phases;
|
||||
(void)x;
|
||||
(void)by;
|
||||
(void)width;
|
||||
(void)bheight;
|
||||
(void)stride;
|
||||
}
|
||||
|
||||
/* Update the display.
|
||||
This must be called after all other LCD functions that change the display. */
|
||||
void lcd_update(void) ICODE_ATTR;
|
||||
void lcd_update(void)
|
||||
{
|
||||
int y;
|
||||
|
||||
/* Copy display bitmap to hardware */
|
||||
for (y = 0; y < LCD_FBHEIGHT; y++)
|
||||
{
|
||||
}
|
||||
}
|
||||
|
||||
/* Update a fraction of the display. */
|
||||
void lcd_update_rect(int, int, int, int) ICODE_ATTR;
|
||||
void lcd_update_rect(int x, int y, int width, int height)
|
||||
{
|
||||
int ymax;
|
||||
|
||||
/* The Y coordinates have to work on even 8 pixel rows */
|
||||
ymax = (y + height-1) >> 3;
|
||||
y >>= 3;
|
||||
|
||||
if(x + width > LCD_WIDTH)
|
||||
width = LCD_WIDTH - x;
|
||||
if (width <= 0)
|
||||
return; /* nothing left to do, 0 is harmful to lcd_write_data() */
|
||||
if(ymax >= LCD_FBHEIGHT)
|
||||
ymax = LCD_FBHEIGHT-1;
|
||||
|
||||
/* Copy specified rectange bitmap to hardware */
|
||||
for (; y <= ymax; y++)
|
||||
{
|
||||
fb_data *src;
|
||||
uint32_t *dst;
|
||||
fb_data pixel;
|
||||
int h, w;
|
||||
|
||||
for (h = 0; h < height; h++) {
|
||||
src = &lcd_framebuffer[y][x];
|
||||
dst = &lcd_local_fb[y][x];
|
||||
for (w = 0; w < width; w++) {
|
||||
pixel = src[w];
|
||||
dst[w] = (RGB_UNPACK_RED(pixel) << 16) |
|
||||
(RGB_UNPACK_GREEN(pixel) << 8) |
|
||||
(RGB_UNPACK_BLUE(pixel) << 0);
|
||||
}
|
||||
y++;
|
||||
}
|
||||
}
|
||||
|
||||
void lcd_update(void)
|
||||
{
|
||||
lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue