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authorDave Chapman <dave@dchapman.com>2008-10-19 14:11:01 +0000
committerDave Chapman <dave@dchapman.com>2008-10-19 14:11:01 +0000
commit08c41d42bb699a1be99c9696b4d4fb7b40e8723a (patch)
tree2834231979d52b81a7860fd4a5e19ed79b3ffee7 /firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
parent14ee31865e366dc19fb87caf4877a8d93305a01b (diff)
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Add e200v2 and m200v2 targets. Move the telechips lcd-ssd1815.c (currently used by Logik DAX and m200v1 ports) driver up in the target tree and share with the m200v2 - as2525 parts contributed by Rafael Carre. Includes the start (but is still very incomplete) of an LCD driver for the e200v2. m200v2 is not yet fully supported by mkamsboot - that will come soon. Also some minor cleanups for the Clip.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18836 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c')
-rw-r--r--firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c385
1 files changed, 385 insertions, 0 deletions
diff --git a/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c b/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
new file mode 100644
index 0000000000..e14ad21681
--- /dev/null
+++ b/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
@@ -0,0 +1,385 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2004 by Linus Nielsen Feltzing
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+
+#include "cpu.h"
+#include "lcd.h"
+#include "kernel.h"
+#include "thread.h"
+#include <string.h>
+#include <stdlib.h>
+#include "file.h"
+#include "debug.h"
+#include "system.h"
+#include "font.h"
+#include "bidi.h"
+
+static bool display_on = false; /* is the display turned on? */
+static bool display_flipped = false;
+static int xoffset = 0; /* needed for flip */
+
+/* register defines */
+#define R_START_OSC 0x00
+#define R_DRV_OUTPUT_CONTROL 0x01
+#define R_DRV_WAVEFORM_CONTROL 0x02
+#define R_ENTRY_MODE 0x03
+#define R_COMPARE_REG1 0x04
+#define R_COMPARE_REG2 0x05
+
+#define R_DISP_CONTROL1 0x07
+#define R_DISP_CONTROL2 0x08
+#define R_DISP_CONTROL3 0x09
+
+#define R_FRAME_CYCLE_CONTROL 0x0b
+#define R_EXT_DISP_IF_CONTROL 0x0c
+
+#define R_POWER_CONTROL1 0x10
+#define R_POWER_CONTROL2 0x11
+#define R_POWER_CONTROL3 0x12
+#define R_POWER_CONTROL4 0x13
+
+#define R_RAM_ADDR_SET 0x21
+#define R_WRITE_DATA_2_GRAM 0x22
+
+#define R_GAMMA_FINE_ADJ_POS1 0x30
+#define R_GAMMA_FINE_ADJ_POS2 0x31
+#define R_GAMMA_FINE_ADJ_POS3 0x32
+#define R_GAMMA_GRAD_ADJ_POS 0x33
+
+#define R_GAMMA_FINE_ADJ_NEG1 0x34
+#define R_GAMMA_FINE_ADJ_NEG2 0x35
+#define R_GAMMA_FINE_ADJ_NEG3 0x36
+#define R_GAMMA_GRAD_ADJ_NEG 0x37
+
+#define R_GAMMA_AMP_ADJ_RES_POS 0x38
+#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39
+
+#define R_GATE_SCAN_POS 0x40
+#define R_VERT_SCROLL_CONTROL 0x41
+#define R_1ST_SCR_DRV_POS 0x42
+#define R_2ND_SCR_DRV_POS 0x43
+#define R_HORIZ_RAM_ADDR_POS 0x44
+#define R_VERT_RAM_ADDR_POS 0x45
+
+#define LCD_CMD (*(volatile unsigned short *)0xf0000000)
+#define LCD_DATA (*(volatile unsigned short *)0xf0000002)
+
+#define R_ENTRY_MODE_HORZ 0x7030
+#define R_ENTRY_MODE_VERT 0x7038
+
+/* TODO: Implement this function */
+static void lcd_delay(int x)
+{
+ (void)x;
+}
+
+/* DBOP initialisation, do what OF does */
+static void ams3525_dbop_init(void)
+{
+
+ /* TODO: More... */
+
+ DBOP_TIMPOL_01 = 0xe167e167;
+ DBOP_TIMPOL_23 = 0xe167006e;
+ DBOP_CTRL = 0x41008;
+
+ GPIOB_AFSEL = 0xfc;
+ GPIOC_AFSEL = 0xff;
+
+ DBOP_TIMPOL_23 = 0x6000e;
+ DBOP_CTRL = 0x51008;
+ DBOP_TIMPOL_01 = 0x6e167;
+ DBOP_TIMPOL_23 = 0xa167e06f;
+
+ /* TODO: More... */
+}
+
+static void lcd_write_reg(int reg, int value)
+{
+ DBOP_CTRL &= ~(1<<14);
+
+ DBOP_TIMPOL_23 = 0xa167006e;
+
+ DBOP_DOUT = reg;
+
+ /* Wait for fifo to empty */
+ while ((DBOP_STAT & (1<<10)) == 0);
+
+ DBOP_TIMPOL_23 = 0xa167e06f;
+
+
+ DBOP_DOUT = value;
+
+ /* Wait for fifo to empty */
+ while ((DBOP_STAT & (1<<10)) == 0);
+}
+
+void lcd_write_data(const fb_data* p_bytes, int count)
+{
+ (void)p_bytes;
+ (void)count;
+}
+
+
+/*** hardware configuration ***/
+
+void lcd_set_contrast(int val)
+{
+ (void)val;
+}
+
+void lcd_set_invert_display(bool yesno)
+{
+ (void)yesno;
+}
+
+static void flip_lcd(bool yesno)
+{
+ (void)yesno;
+}
+
+
+/* turn the display upside down (call lcd_update() afterwards) */
+void lcd_set_flip(bool yesno)
+{
+ display_flipped = yesno;
+ xoffset = yesno ? 4 : 0;
+
+ if (display_on)
+ flip_lcd(yesno);
+}
+
+static void _display_on(void)
+{
+ /* Initialisation the display the same way as the original firmware */
+
+ lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscilation */
+
+ lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x011b); /* 220 lines, GS=0, SS=1 */
+
+ /* B/C = 1: n-line inversion form
+ * EOR = 1: polarity inversion occurs by applying an EOR to odd/even
+ * frame select signal and an n-line inversion signal.
+ * FLD = 01b: 1 field interlaced scan, external display iface */
+ lcd_write_reg(R_DRV_WAVEFORM_CONTROL, 0x0700);
+
+ /* Address counter updated in horizontal direction; left to right;
+ * vertical increment horizontal increment.
+ * data format for 8bit transfer or spi = 65k (5,6,5) */
+ lcd_write_reg(R_ENTRY_MODE, 0x0030);
+
+ /* Replace data on writing to GRAM */
+ lcd_write_reg(R_COMPARE_REG1, 0);
+ lcd_write_reg(R_COMPARE_REG2, 0);
+
+ lcd_write_reg(R_DISP_CONTROL1, 0x0000); /* GON = 0, DTE = 0, D1-0 = 00b */
+
+ /* Front porch lines: 2; Back porch lines: 2; */
+ lcd_write_reg(R_DISP_CONTROL2, 0x0203);
+
+ /* Scan cycle = 0 frames */
+ lcd_write_reg(R_DISP_CONTROL3, 0x0000);
+
+ /* 16 clocks */
+ lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0000);
+
+ /* 18-bit RGB interface (one transfer/pixel)
+ * internal clock operation;
+ * System interface/VSYNC interface */
+ lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0x0000);
+
+
+ /* zero everything*/
+ lcd_write_reg(R_POWER_CONTROL1, 0x0000); /* STB = 0, SLP = 0 */
+
+ lcd_delay(10);
+
+ /* initialise power supply */
+
+ /* DC12-10 = 000b: Step-up1 = clock/8,
+ * DC02-00 = 000b: Step-up2 = clock/16,
+ * VC2-0 = 010b: VciOUT = 0.87 * VciLVL */
+ lcd_write_reg(R_POWER_CONTROL2, 0x0002);
+
+ /* VRH3-0 = 1000b: Vreg1OUT = REGP * 1.90 */
+ lcd_write_reg(R_POWER_CONTROL3, 0x0008);
+
+ lcd_delay(40);
+
+ lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG = 0 */
+
+ /* This register is unknown */
+ lcd_write_reg(0x56, 0x80f);
+
+
+ lcd_write_reg(R_POWER_CONTROL1, 0x4140);
+
+ lcd_delay(10);
+
+ lcd_write_reg(R_POWER_CONTROL2, 0x0000);
+ lcd_write_reg(R_POWER_CONTROL3, 0x0013);
+
+ lcd_delay(20);
+
+ lcd_write_reg(R_POWER_CONTROL4, 0x6d0e);
+
+ lcd_delay(20);
+
+ lcd_write_reg(R_POWER_CONTROL4, 0x6d0e);
+
+ lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0002);
+ lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0707);
+ lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0182);
+ lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0203);
+ lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0706);
+ lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0006);
+ lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0706);
+ lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0000);
+ lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0x030f);
+ lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0x0f08);
+
+
+ lcd_write_reg(R_RAM_ADDR_SET, 0);
+ lcd_write_reg(R_GATE_SCAN_POS, 0);
+ lcd_write_reg(R_VERT_SCROLL_CONTROL, 0);
+
+ lcd_write_reg(R_1ST_SCR_DRV_POS, 219 << 8);
+ lcd_write_reg(R_2ND_SCR_DRV_POS, 219 << 8);
+
+ lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 175 << 8);
+ lcd_write_reg(R_VERT_RAM_ADDR_POS, 219 << 8);
+
+
+ lcd_write_reg(R_DISP_CONTROL1, 0x0037);
+
+ display_on=true; /* must be done before calling lcd_update() */
+ lcd_update();
+}
+
+/* LCD init */
+void lcd_init_device(void)
+{
+ ams3525_dbop_init();
+
+ /* Init GPIOs the same as the OF */
+
+ GPIOA_DIR |= (1<<5);
+ GPIOA_PIN(5) = 0;
+
+ GPIOA_PIN(3) = (1<<3);
+
+ GPIOA_DIR |= (3<<3);
+
+ GPIOA_PIN(3) = (1<<3);
+
+ GPIOA_PIN(4) = 0; //c80b0040 := 0;
+
+ GPIOA_DIR |= (1<<7);
+ GPIOA_PIN(7) = 0;
+
+ CCU_IO &= ~(1<<2);
+ CCU_IO &= ~(1<<3);
+
+ GPIOD_DIR |= (1<<7);
+
+#if 0
+ /* TODO: This code is conditional on a variable in the OF init, we need to
+ work out what it means */
+
+ GPIOD_PIN(7) = (1<<7);
+ GPIOD_DIR |= (1<<7);
+#endif
+
+ lcd_delay(1);
+
+ GPIOA_PIN(5) = (1<<5);
+
+ lcd_delay(1);
+
+ _display_on();
+}
+
+void lcd_enable(bool on)
+{
+ if(display_on!=on)
+ {
+ if(on)
+ {
+ _display_on();
+ lcd_call_enable_hook();
+ }
+ else
+ {
+ /* TODO: Implement off sequence */
+ display_on=false;
+ }
+ }
+}
+
+bool lcd_enabled(void)
+{
+ return display_on;
+}
+
+/*** update functions ***/
+
+/* Performance function to blit a YUV bitmap directly to the LCD
+ * src_x, src_y, width and height should be even
+ * x, y, width and height have to be within LCD bounds
+ */
+void lcd_blit_yuv(unsigned char * const src[3],
+ int src_x, int src_y, int stride,
+ int x, int y, int width, int height)
+{
+ (void)src;
+ (void)src_x;
+ (void)src_y;
+ (void)stride;
+ (void)x;
+ (void)y;
+ (void)width;
+ (void)height;
+}
+
+/* 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)
+{
+ if(display_on){
+ /* TODO */
+ }
+}
+
+
+/* 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)
+{
+ (void)x;
+ (void)y;
+ (void)width;
+ (void)height;
+
+ if(display_on) {
+ /* TODO */
+ }
+}