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iPod Nano 2G: Implement LCD sleep (FS#11604 by Franz-Josef Haider), adds up to 5 hours of battery life
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28591 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sparmann
parent
bbebaa406f
commit
a5ad3f8a72
3 changed files with 478 additions and 34 deletions
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@ -21,10 +21,15 @@
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#include <stdbool.h>
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#include "config.h"
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#include "kernel.h"
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#include "backlight.h"
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#include "backlight-target.h"
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#include "pmu-target.h"
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#ifdef HAVE_LCD_SLEEP
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void lcd_awake(void);
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void lcd_update(void);
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#endif
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void _backlight_set_brightness(int brightness)
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{
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@ -33,6 +38,12 @@ void _backlight_set_brightness(int brightness)
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void _backlight_on(void)
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{
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if(pmu_read(0x29) == 1) return;
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#ifdef HAVE_LCD_SLEEP
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lcd_awake();
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lcd_update();
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sleep(HZ/10);
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#endif
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pmu_write(0x29, 1);
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}
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@ -57,13 +57,341 @@
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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-s5l8700.c */
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static int xoffset; /* needed for flip */
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static bool lcd_ispowered;
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/** hardware access functions */
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#ifdef HAVE_LCD_SLEEP
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#define SLEEP 0
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#define CMD8 1
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#define CMD16 2
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#define DATA8 3
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#define DATA16 4
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unsigned short lcd_init_sequence_0[] = {
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CMD16, 0x00a4,
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DATA16, 0x0001,
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SLEEP, 0x0000,
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CMD16, 0x0001,
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DATA16, 0x0100,
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CMD16, 0x0002,
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DATA16, 0x0300,
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CMD16, 0x0003,
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DATA16, 0x1230,
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CMD16, 0x0008,
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DATA16, 0x0404,
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CMD16, 0x0008,
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DATA16, 0x0404,
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CMD16, 0x000e,
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DATA16, 0x0010,
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CMD16, 0x0070,
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DATA16, 0x1000,
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CMD16, 0x0071,
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DATA16, 0x0001,
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CMD16, 0x0030,
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DATA16, 0x0002,
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CMD16, 0x0031,
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DATA16, 0x0400,
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CMD16, 0x0032,
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DATA16, 0x0007,
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CMD16, 0x0033,
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DATA16, 0x0500,
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CMD16, 0x0034,
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DATA16, 0x0007,
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CMD16, 0x0035,
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DATA16, 0x0703,
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CMD16, 0x0036,
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DATA16, 0x0507,
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CMD16, 0x0037,
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DATA16, 0x0005,
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CMD16, 0x0038,
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DATA16, 0x0407,
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CMD16, 0x0039,
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DATA16, 0x000e,
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CMD16, 0x0040,
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DATA16, 0x0202,
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CMD16, 0x0041,
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DATA16, 0x0003,
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CMD16, 0x0042,
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DATA16, 0x0000,
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CMD16, 0x0043,
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DATA16, 0x0200,
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CMD16, 0x0044,
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DATA16, 0x0707,
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CMD16, 0x0045,
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DATA16, 0x0407,
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CMD16, 0x0046,
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DATA16, 0x0505,
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CMD16, 0x0047,
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DATA16, 0x0002,
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CMD16, 0x0048,
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DATA16, 0x0004,
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CMD16, 0x0049,
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DATA16, 0x0004,
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CMD16, 0x0060,
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DATA16, 0x0202,
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CMD16, 0x0061,
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DATA16, 0x0003,
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CMD16, 0x0062,
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DATA16, 0x0000,
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CMD16, 0x0063,
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DATA16, 0x0200,
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CMD16, 0x0064,
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DATA16, 0x0707,
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CMD16, 0x0065,
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DATA16, 0x0407,
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CMD16, 0x0066,
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DATA16, 0x0505,
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CMD16, 0x0068,
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DATA16, 0x0004,
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CMD16, 0x0069,
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DATA16, 0x0004,
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CMD16, 0x0007,
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DATA16, 0x0001,
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CMD16, 0x0018,
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DATA16, 0x0001,
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CMD16, 0x0010,
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DATA16, 0x1690,
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CMD16, 0x0011,
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DATA16, 0x0100,
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CMD16, 0x0012,
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DATA16, 0x0117,
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CMD16, 0x0013,
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DATA16, 0x0f80,
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CMD16, 0x0012,
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DATA16, 0x0137,
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CMD16, 0x0020,
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DATA16, 0x0000,
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CMD16, 0x0021,
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DATA16, 0x0000,
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CMD16, 0x0050,
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DATA16, 0x0000,
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CMD16, 0x0051,
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DATA16, 0x00af,
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CMD16, 0x0052,
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DATA16, 0x0000,
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CMD16, 0x0053,
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DATA16, 0x0083,
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CMD16, 0x0090,
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DATA16, 0x0003,
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CMD16, 0x0091,
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DATA16, 0x0000,
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CMD16, 0x0092,
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DATA16, 0x0101,
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CMD16, 0x0098,
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DATA16, 0x0400,
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CMD16, 0x0099,
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DATA16, 0x1302,
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CMD16, 0x009a,
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DATA16, 0x0202,
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CMD16, 0x009b,
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DATA16, 0x0200,
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SLEEP, 0x0000,
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CMD16, 0x0007,
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DATA16, 0x0021,
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CMD16, 0x0012,
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DATA16, 0x0137,
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SLEEP, 0x0000,
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CMD16, 0x0007,
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DATA16, 0x0021,
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CMD16, 0x0012,
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DATA16, 0x1137,
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SLEEP, 0x0000,
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CMD16, 0x0007,
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DATA16, 0x0233,
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};
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unsigned short lcd_init_sequence_1[] = {
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CMD8, 0x01,
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DATA8, 0x00,
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SLEEP, 0,
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CMD8, 0xB1,
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DATA8, 0x16,
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DATA8, 0x03,
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CMD8, 0xB2,
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DATA8, 0x17,
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DATA8, 0x03,
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CMD8, 0xB4,
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DATA8, 0x00,
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CMD8, 0xB6,
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DATA8, 0x01,
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CMD8, 0xB7,
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DATA8, 0x00,
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DATA8, 0x00,
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DATA8, 0x02,
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DATA8, 0x00,
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DATA8, 0x06,
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DATA8, 0x26,
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DATA8, 0x2D,
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DATA8, 0x27,
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DATA8, 0x55,
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DATA8, 0x27,
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CMD8, 0xB8,
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DATA8, 0x10,
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CMD8, 0xB9,
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DATA8, 0x52,
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DATA8, 0x12,
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DATA8, 0x03,
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CMD8, 0xC0,
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DATA8, 0x0A,
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DATA8, 0x10,
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DATA8, 0x10,
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CMD8, 0xC2,
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DATA8, 0x14,
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DATA8, 0x23,
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CMD8, 0xC3,
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DATA8, 0x12,
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DATA8, 0x23,
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CMD8, 0xC6,
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DATA8, 0x48,
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CMD8, 0xE0,
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DATA8, 0x20,
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DATA8, 0x71,
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DATA8, 0x17,
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DATA8, 0x09,
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DATA8, 0x70,
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DATA8, 0x0C,
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DATA8, 0x13,
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DATA8, 0x25,
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CMD8, 0xE1,
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DATA8, 0x37,
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DATA8, 0x00,
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DATA8, 0x63,
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DATA8, 0x11,
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DATA8, 0xD9,
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DATA8, 0x00,
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DATA8, 0x12,
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DATA8, 0x01,
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CMD8, 0xE2,
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DATA8, 0x42,
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DATA8, 0x42,
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DATA8, 0x60,
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DATA8, 0x08,
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DATA8, 0xB4,
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DATA8, 0x07,
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DATA8, 0x0E,
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DATA8, 0x90,
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CMD8, 0xE3,
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DATA8, 0x47,
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DATA8, 0x60,
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DATA8, 0x66,
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DATA8, 0x09,
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DATA8, 0x6A,
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DATA8, 0x02,
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DATA8, 0x0E,
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DATA8, 0x09,
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CMD8, 0xE4,
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DATA8, 0x11,
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DATA8, 0x40,
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DATA8, 0x03,
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DATA8, 0x0A,
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DATA8, 0xC1,
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DATA8, 0x0D,
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DATA8, 0x17,
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DATA8, 0x30,
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CMD8, 0xE5,
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DATA8, 0x00,
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DATA8, 0x30,
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DATA8, 0x77,
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DATA8, 0x1C,
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DATA8, 0xFB,
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DATA8, 0x00,
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DATA8, 0x13,
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DATA8, 0x07,
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CMD8, 0xE6,
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DATA8, 0x01,
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CMD8, 0x35,
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DATA8, 0x00,
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CMD8, 0x36,
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DATA8, 0x00,
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CMD8, 0xF2,
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DATA8, 0x40,
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CMD8, 0xF3,
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DATA8, 0x50,
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CMD8, 0xFB,
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DATA8, 0x01,
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CMD8, 0x11,
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DATA8, 0x00,
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SLEEP, 0,
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CMD8, 0x3A,
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DATA8, 0x65,
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CMD8, 0x29,
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DATA8, 0x00,
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};
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unsigned short lcd_init_sequence_2[] = {
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CMD8, 0x01,
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SLEEP, 0,
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CMD8, 0x11,
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SLEEP, 0,
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CMD8, 0x3a,
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DATA8, 0x65,
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CMD8, 0xab,
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CMD8, 0x35,
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DATA8, 0x00,
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CMD8, 0xf2,
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DATA8, 0x01,
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CMD8, 0xe0,
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DATA8, 0x71,
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DATA8, 0x76,
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DATA8, 0x25,
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DATA8, 0x01,
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DATA8, 0xa5,
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DATA8, 0x09,
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DATA8, 0x15,
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DATA8, 0x11,
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CMD8, 0xe1,
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DATA8, 0x40,
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DATA8, 0x21,
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DATA8, 0x64,
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DATA8, 0x13,
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DATA8, 0xf3,
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DATA8, 0x0b,
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DATA8, 0x00,
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DATA8, 0x00,
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CMD8, 0xe2,
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DATA8, 0x71,
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DATA8, 0x65,
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DATA8, 0x24,
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DATA8, 0x08,
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DATA8, 0x97,
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DATA8, 0x01,
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DATA8, 0x15,
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DATA8, 0x11,
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CMD8, 0xe3,
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DATA8, 0x51,
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DATA8, 0x01,
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DATA8, 0x62,
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DATA8, 0x13,
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DATA8, 0xf3,
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DATA8, 0x0b,
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DATA8, 0x00,
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DATA8, 0x00,
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CMD8, 0xe4,
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DATA8, 0x71,
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DATA8, 0x57,
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DATA8, 0x31,
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DATA8, 0x01,
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DATA8, 0x82,
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DATA8, 0x04,
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DATA8, 0x1f,
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DATA8, 0x11,
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CMD8, 0xe5,
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DATA8, 0x64,
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DATA8, 0x41,
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DATA8, 0x64,
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DATA8, 0x19,
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DATA8, 0xb3,
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DATA8, 0x09,
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DATA8, 0x00,
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DATA8, 0x00,
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CMD8, 0x29,
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};
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#endif /* HAVE_LCD_SLEEP */
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static inline void s5l_lcd_write_cmd_data(int cmd, int data)
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{
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@ -84,7 +412,21 @@ static inline void s5l_lcd_write_cmd(unsigned short cmd)
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LCD_WCMD = cmd;
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}
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static inline void s5l_lcd_write_data(int data)
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static inline void s5l_lcd_write_wcmd(unsigned short cmd)
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{
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while (LCD_STATUS & 0x10);
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LCD_WCMD = cmd >> 8;
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while (LCD_STATUS & 0x10);
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LCD_WCMD = cmd & 0xff;
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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 & 0xff;
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}
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static inline void s5l_lcd_write_wdata(unsigned short data)
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{
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while (LCD_STATUS & 0x10);
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LCD_WDATA = data >> 8;
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@ -125,6 +467,89 @@ void lcd_set_flip(bool yesno)
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}
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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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#ifdef HAVE_LCD_SLEEP
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void lcd_wakeup(void)
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{
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unsigned short *lcd_init_sequence;
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unsigned int lcd_init_sequence_length;
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int type = lcd_type;
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pmu_ldo_set_voltage(2, 17);
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PWRCONEXT &= ~0x80;
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PCON2 = 0x33333333;
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PCON3 = 0x11113333;
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PCON4 = 0x33333333;
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PCON13 &= ~0xf; /* Set pin 0 to input */
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PCON14 &= ~0xf0; /* Set pin 1 to input */
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if((((PDAT13 & 1) == 1) && ((PDAT14 & 2) == 2))||
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(((PDAT13 & 1) == 0) && ((PDAT14 & 2) == 0)))
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{
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type = 2; /* there is a third lcd type which behaves like type 7 (LDS176) but needs to be initialized differently */
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}
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if(type == 0)
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{
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lcd_init_sequence = lcd_init_sequence_0;
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lcd_init_sequence_length = (sizeof(lcd_init_sequence_0) - 1)/sizeof(unsigned short);
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}
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else if(type == 1)
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{
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lcd_init_sequence = lcd_init_sequence_1;
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lcd_init_sequence_length = (sizeof(lcd_init_sequence_1) - 1)/sizeof(unsigned short);
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}
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else
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{
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lcd_init_sequence = lcd_init_sequence_2;
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lcd_init_sequence_length = (sizeof(lcd_init_sequence_2) - 1)/sizeof(unsigned short);
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}
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/* reset the lcd chip */
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LCD_RST_TIME = 0x7FFF;
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LCD_DRV_RST = 0;
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sleep(0);
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LCD_DRV_RST = 1;
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sleep(HZ / 100);
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for(unsigned int i=0;i<lcd_init_sequence_length;i+=2)
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{
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switch(lcd_init_sequence[i])
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{
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case CMD8:
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s5l_lcd_write_cmd(lcd_init_sequence[i+1]);
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break;
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case DATA8:
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s5l_lcd_write_data(lcd_init_sequence[i+1]);
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break;
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case CMD16:
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s5l_lcd_write_wcmd(lcd_init_sequence[i+1]);
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break;
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case DATA16:
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s5l_lcd_write_wdata(lcd_init_sequence[i+1]);
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break;
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case SLEEP:
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sleep(lcd_init_sequence[i+1]);
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break;
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default:
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break;
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}
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}
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lcd_ispowered = true;
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}
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void lcd_awake(void)
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{
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if(!lcd_active()) lcd_wakeup();
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}
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#endif
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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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@ -145,12 +570,26 @@ void lcd_shutdown(void)
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else
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{
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s5l_lcd_write_cmd(R_DISPLAY_OFF);
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s5l_lcd_write_data(0);
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s5l_lcd_write_data(0);
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||||
s5l_lcd_write_wdata(0);
|
||||
s5l_lcd_write_wdata(0);
|
||||
s5l_lcd_write_cmd(R_SLEEP_IN);
|
||||
s5l_lcd_write_data(0);
|
||||
s5l_lcd_write_data(0);
|
||||
s5l_lcd_write_wdata(0);
|
||||
s5l_lcd_write_wdata(0);
|
||||
}
|
||||
|
||||
PCON2 = 0;
|
||||
PCON3 = 0;
|
||||
PCON4 = 0;
|
||||
PWRCONEXT |= 0x80;
|
||||
sleep(HZ / 20);
|
||||
pmu_ldo_set_voltage(2, 1);
|
||||
|
||||
lcd_ispowered = false;
|
||||
}
|
||||
|
||||
void lcd_sleep(void)
|
||||
{
|
||||
lcd_shutdown();
|
||||
}
|
||||
|
||||
/* LCD init */
|
||||
|
|
@ -166,18 +605,9 @@ void lcd_init_device(void)
|
|||
else
|
||||
lcd_type = 1; /* Similar to LDS176 - aka "type 7" */
|
||||
|
||||
/* Now init according to lcd type */
|
||||
if (lcd_type == 0) {
|
||||
/* TODO */
|
||||
|
||||
/* Entry Mode: AM=0, I/D1=1, I/D0=1, ORG=0, HWM=1, BGR=1 */
|
||||
s5l_lcd_write_cmd_data(R_ENTRY_MODE, 0x1230);
|
||||
} else {
|
||||
/* TODO */
|
||||
}
|
||||
lcd_ispowered = true;
|
||||
}
|
||||
|
||||
|
||||
/*** Update functions ***/
|
||||
|
||||
static inline void lcd_write_pixel(fb_data pixel)
|
||||
|
|
@ -209,12 +639,12 @@ void lcd_update(void)
|
|||
s5l_lcd_write_cmd(R_WRITE_DATA_TO_GRAM);
|
||||
} else {
|
||||
s5l_lcd_write_cmd(R_COLUMN_ADDR_SET);
|
||||
s5l_lcd_write_data(0); /* Start column */
|
||||
s5l_lcd_write_data(LCD_WIDTH-1); /* End column */
|
||||
s5l_lcd_write_wdata(0); /* Start column */
|
||||
s5l_lcd_write_wdata(LCD_WIDTH-1); /* End column */
|
||||
|
||||
s5l_lcd_write_cmd(R_ROW_ADDR_SET);
|
||||
s5l_lcd_write_data(0); /* Start row */
|
||||
s5l_lcd_write_data(LCD_HEIGHT-1); /* End row */
|
||||
s5l_lcd_write_wdata(0); /* Start row */
|
||||
s5l_lcd_write_wdata(LCD_HEIGHT-1); /* End row */
|
||||
|
||||
s5l_lcd_write_cmd(R_MEMORY_WRITE);
|
||||
}
|
||||
|
|
@ -254,12 +684,12 @@ void lcd_update_rect(int x, int y, int width, int height)
|
|||
s5l_lcd_write_cmd(R_WRITE_DATA_TO_GRAM);
|
||||
} else {
|
||||
s5l_lcd_write_cmd(R_COLUMN_ADDR_SET);
|
||||
s5l_lcd_write_data(x0); /* Start column */
|
||||
s5l_lcd_write_data(x1); /* End column */
|
||||
s5l_lcd_write_wdata(x0); /* Start column */
|
||||
s5l_lcd_write_wdata(x1); /* End column */
|
||||
|
||||
s5l_lcd_write_cmd(R_ROW_ADDR_SET);
|
||||
s5l_lcd_write_data(y0); /* Start row */
|
||||
s5l_lcd_write_data(y1); /* End row */
|
||||
s5l_lcd_write_wdata(y0); /* Start row */
|
||||
s5l_lcd_write_wdata(y1); /* End row */
|
||||
|
||||
s5l_lcd_write_cmd(R_MEMORY_WRITE);
|
||||
}
|
||||
|
|
@ -337,12 +767,12 @@ void lcd_blit_yuv(unsigned char * const src[3],
|
|||
s5l_lcd_write_cmd(R_WRITE_DATA_TO_GRAM);
|
||||
} else {
|
||||
s5l_lcd_write_cmd(R_COLUMN_ADDR_SET);
|
||||
s5l_lcd_write_data(x0); /* Start column */
|
||||
s5l_lcd_write_data(x1); /* End column */
|
||||
s5l_lcd_write_wdata(x0); /* Start column */
|
||||
s5l_lcd_write_wdata(x1); /* End column */
|
||||
|
||||
s5l_lcd_write_cmd(R_ROW_ADDR_SET);
|
||||
s5l_lcd_write_data(y0); /* Start row */
|
||||
s5l_lcd_write_data(y1); /* End row */
|
||||
s5l_lcd_write_wdata(y0); /* Start row */
|
||||
s5l_lcd_write_wdata(y1); /* End row */
|
||||
|
||||
s5l_lcd_write_cmd(R_MEMORY_WRITE);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue