Setup LCD ourselves; move LCD buffer and TTB to free up 1.7MB of memory

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11994 a1c6a512-1295-4272-9138-f99709370657

9 files changed, 67 insertions, 39 deletions

diff --git a/firmware/app.lds b/firmware/app.lds
index 1053437106..02c204a2a8 100644
--- a/firmware/app.lds
+++ b/firmware/app.lds
@@ -26,8 +26,9 @@ INPUT(target/sh/crt0.o)
 #define STUBOFFSET 0
 #endif
 
+#if CONFIG_CPU!=S3C2440
 #define DRAMSIZE (MEMORYSIZE * 0x100000) - PLUGINSIZE - STUBOFFSET - CODECSIZE
-
+#endif
 #if defined(IRIVER_H100_SERIES) || defined(IRIVER_H300)
 #define DRAMORIG 0x31000000 + STUBOFFSET
 #define IRAMORIG 0x10000000
@@ -45,7 +46,9 @@ INPUT(target/sh/crt0.o)
 #define IRAMORIG 0x400000
 #define IRAMSIZE 0x7000
 #elif CONFIG_CPU==S3C2440
-#define DRAMORIG 0x100 + STUBOFFSET
+#include "s3c2440.h"
+#define DRAMORIG (0x100 + STUBOFFSET)
+#define DRAMSIZE (MEMORYSIZE * 0x100000) - 0x100 - STUBOFFSET - LCD_BUFFER_SIZE - TTB_SIZE - PLUGINSIZE - CODECSIZE
 #define IRAMORIG DRAMORIG
 #define IRAMSIZE 4K
 #define IRAM DRAM
@@ -126,7 +129,7 @@ SECTIONS
         _dataend  = .;
     } > DRAM
 
-    /DISCARD/ : 
+    /DISCARD/ :
     {
         *(.eh_frame)
     }
@@ -163,7 +166,7 @@ SECTIONS
     } > IRAM AT> DRAM
 
     _iramcopy = LOADADDR(.iram);
-    
+
     .ibss (NOLOAD) :
     {
         _iedata = .;
@@ -180,7 +183,7 @@ SECTIONS
        . += 0x2000;
        stackend = .;
     } > IRAM
-    
+
 #ifdef CPU_PP
     .cop_stack :
     {
diff --git a/firmware/export/config-gigabeat.h b/firmware/export/config-gigabeat.h
index 4a1d11d43a..3dbdadf621 100644
--- a/firmware/export/config-gigabeat.h
+++ b/firmware/export/config-gigabeat.h
@@ -86,7 +86,7 @@
 #define BATTERY_TYPES_COUNT  1          /* only one type */
 
 /* ADC[0] is (530) at discharge and 625 at full charge */
-#define BATTERY_SCALE_FACTOR 6450 
+#define BATTERY_SCALE_FACTOR 6450
 
 /* Hardware controlled charging with monitoring */
 #define CONFIG_CHARGING CHARGING_MONITOR
@@ -132,5 +132,5 @@
 #define BOOTFILE_EXT "gigabeat"
 #define BOOTFILE "rockbox." BOOTFILE_EXT
 
- 
+
 #endif
diff --git a/firmware/export/lcd.h b/firmware/export/lcd.h
index 8a65d09fa3..37ad2b0cc2 100644
--- a/firmware/export/lcd.h
+++ b/firmware/export/lcd.h
@@ -347,8 +347,10 @@ extern void     lcd_set_drawinfo(int mode, unsigned foreground,
 void lcd_set_backdrop(fb_data* backdrop);
 #if defined(TOSHIBA_GIGABEAT_F) && !defined(SIMULATOR)
 void lcd_device_prepare_backdrop(fb_data* backdrop);
+bool lcd_enabled(void);
 #else
 #define lcd_device_prepare_backdrop(x) ;
+#define lcd_enabled() true
 #endif
 
 fb_data* lcd_get_backdrop(void);
diff --git a/firmware/export/s3c2440.h b/firmware/export/s3c2440.h
index 3c7075acd6..4a799da3e2 100644
--- a/firmware/export/s3c2440.h
+++ b/firmware/export/s3c2440.h
@@ -143,9 +143,12 @@
 #define LCDINTMSK (*(volatile int *)0x4D00005C) /* LCD interrupt mask */
 #define TCONSEL (*(volatile int *)0x4D000060) /* TCON(LPC3600/LCC3600) control */
 
-/* The following should be computed but for now, we cheat. */
-#define FRAME   ( (short *) 0x31E00000  ) /* LCD Frame buffer */
-
+#define LCD_BUFFER_SIZE ((320*240*2))
+#define TTB_SIZE (0x4000)
+/*#define FRAME   ( (short *) 0x31E00000  ) */ /* LCD Frame buffer - Firmware Address */
+/* must be 16Kb (0x4000) aligned */
+#define TTB_BASE   (0x30000000 + (32*1024*1024) - TTB_SIZE) /* End of memory */
+#define FRAME   ((short *) (TTB_BASE - LCD_BUFFER_SIZE))  /* Right before TTB */
 /* NAND Flash */
 
 #define NFCONF (*(volatile int *)0x4E000000) /* NAND flash configuration */
diff --git a/firmware/target/arm/gigabeat/meg-fx/ata-meg-fx.c b/firmware/target/arm/gigabeat/meg-fx/ata-meg-fx.c
index 8e246045e6..00b5e09ed3 100644
--- a/firmware/target/arm/gigabeat/meg-fx/ata-meg-fx.c
+++ b/firmware/target/arm/gigabeat/meg-fx/ata-meg-fx.c
@@ -53,10 +53,11 @@ void ata_device_init(void)
 {
 }
 
+#if !defined(BOOTLOADER)
 void copy_read_sectors(unsigned char* buf, int wordcount)
 {
     __buttonlight_trigger();
-    
+
     /* Unaligned transfer - slow copy */
     if ( (unsigned long)buf & 1)
     {   /* not 16-bit aligned, copy byte by byte */
@@ -94,7 +95,9 @@ void copy_read_sectors(unsigned char* buf, int wordcount)
     DISRC0 = (int) 0x18000000;
     DISRCC0 = 0x1;
     /* Dest mapped to physical address, on AHB bus, increment */
-    DIDST0 = (int) (buf + 0x30000000);
+    DIDST0 = (int) buf;
+	if(DIDST0 < 0x30000000)
+		DIDST0 += 0x30000000;
     DIDSTC0 = 0;
 
     /* DACK/DREQ Sync to AHB, Int on Transfer complete, Whole service, No reload, 16-bit transfers */
@@ -112,10 +115,10 @@ void copy_read_sectors(unsigned char* buf, int wordcount)
 
     /* Wait for transfer to complete */
     while((DSTAT0 & 0x000fffff))
-        CLKCON |= (1 << 2); /* set IDLE bit */
+        yield();
     /* Dump cache for the buffer  */
 }
-
+#endif
 void dma0(void)
 {
 }
diff --git a/firmware/target/arm/gigabeat/meg-fx/backlight-meg-fx.c b/firmware/target/arm/gigabeat/meg-fx/backlight-meg-fx.c
index f6a8d31c7b..2f96584515 100644
--- a/firmware/target/arm/gigabeat/meg-fx/backlight-meg-fx.c
+++ b/firmware/target/arm/gigabeat/meg-fx/backlight-meg-fx.c
@@ -123,8 +123,8 @@ bool __backlight_init(void)
 
     buttonlight_selected = 0x04;
 
-	/* delay 2 seconds before any fading */
-	initial_tick_delay = 2000;
+    /* delay 4 seconds before any fading */
+    initial_tick_delay = 400;
     /* put the led control on the tick list */
     tick_add_task(led_control_service);
     
@@ -272,10 +272,10 @@ void __buttonlight_mode(enum buttonlight_mode mode,
  */
 static void led_control_service(void)
 {
-	if(initial_tick_delay) {
-		initial_tick_delay--;
-		return;
-	}
+    if(initial_tick_delay) {
+        initial_tick_delay--;
+        return;
+    }
     switch (backlight_control)
     {
         case BACKLIGHT_CONTROL_IDLE:
diff --git a/firmware/target/arm/gigabeat/meg-fx/lcd-meg-fx.c b/firmware/target/arm/gigabeat/meg-fx/lcd-meg-fx.c
index 778e049dd5..c3a17e16cb 100644
--- a/firmware/target/arm/gigabeat/meg-fx/lcd-meg-fx.c
+++ b/firmware/target/arm/gigabeat/meg-fx/lcd-meg-fx.c
@@ -29,21 +29,37 @@ bool lcd_enabled()
     return lcd_on;
 }
 
+unsigned int LCDBANK(unsigned int address)
+{
+    return ((address >> 22) & 0xff);
+}
+
+unsigned int LCDBASEU(unsigned int address)
+{
+    return (address & ((1 << 22)-1)) >> 1;
+}
+
+unsigned int LCDBASEL(unsigned int address)
+{
+    address += 320*240*2;
+    return (address & ((1 << 22)-1)) >> 1;
+}
+
+
 /* LCD init */
 void lcd_init_device(void)
 {
-    memset16(fg_pattern_blit, fg_pattern, sizeof(fg_pattern_blit)/2);
-    memset16(bg_pattern_blit, bg_pattern, sizeof(bg_pattern_blit)/2);
-    clean_dcache_range((void *)fg_pattern_blit, sizeof(fg_pattern_blit));
-    clean_dcache_range((void *)bg_pattern_blit, sizeof(bg_pattern_blit));
-
-    LCDSADDR1 = 0x18F00000; /* These values are pulled from an F40  */
-    LCDSADDR2 = 0x00112C00; /* They should move FRAME to the correct location */
-    LCDSADDR3 = 0x000000F0; /* TODO: Move FRAME to where we want it */
+    LCDSADDR1 = (LCDBANK((unsigned)FRAME) << 21) | (LCDBASEU((unsigned)FRAME));
+    LCDSADDR2 = LCDBASEL((unsigned)FRAME);
+    LCDSADDR3 = 0x000000F0;
 
     LCDCON5 |= 1 << 11;     /* Switch from 555I mode to 565 mode */
 
 #if !defined(BOOTLOADER)
+    memset16(fg_pattern_blit, fg_pattern, sizeof(fg_pattern_blit)/2);
+    memset16(bg_pattern_blit, bg_pattern, sizeof(bg_pattern_blit)/2);
+    clean_dcache_range((void *)fg_pattern_blit, sizeof(fg_pattern_blit));
+    clean_dcache_range((void *)bg_pattern_blit, sizeof(bg_pattern_blit));
     use_dma_blit = true;
     lcd_poweroff = true;
 #endif
@@ -66,7 +82,7 @@ void lcd_update_rect(int x, int y, int width, int height)
     {
         /* Wait for this controller to stop pending transfer */
         while((DSTAT1 & 0x000fffff))
-            CLKCON |= (1 << 2); /* set IDLE bit */
+            yield();
 
         /* Flush DCache */
         invalidate_dcache_range((void *)(((int) &lcd_framebuffer)+(y * sizeof(fb_data) * LCD_WIDTH)), (height * sizeof(fb_data) * LCD_WIDTH));
@@ -92,7 +108,7 @@ void lcd_update_rect(int x, int y, int width, int height)
 
         /* Wait for transfer to complete */
         while((DSTAT1 & 0x000fffff))
-            CLKCON |= (1 << 2); /* set IDLE bit */
+            yield();
     }
     else
         memcpy(((char*)FRAME) + (y * sizeof(fb_data) * LCD_WIDTH), ((char *)&lcd_framebuffer) + (y * sizeof(fb_data) * LCD_WIDTH), ((height * sizeof(fb_data) * LCD_WIDTH)));
@@ -143,9 +159,8 @@ void lcd_clear_display_dma(void)
     void *src;
     bool inc = false;
 
-    if(!lcd_on) {
-        sleep(200);
-    }
+    if(!lcd_on)
+        yield();
     if (lcd_get_drawmode() & DRMODE_INVERSEVID)
         src = fg_pattern_blit;
     else
@@ -162,7 +177,7 @@ void lcd_clear_display_dma(void)
     }
     /* Wait for any pending transfer to complete */
     while((DSTAT3 & 0x000fffff))
-        CLKCON |= (1 << 2); /* set IDLE bit */
+        yield();
     DMASKTRIG3 |= 0x4; /* Stop controller */
     DIDST3 = ((int) lcd_framebuffer) + 0x30000000; /* set DMA dest, physical address */
     DIDSTC3 = 0; /* Dest on AHB, increment */
@@ -182,7 +197,7 @@ void lcd_clear_display_dma(void)
 
     /* Wait for transfer to complete */
     while((DSTAT3 & 0x000fffff))
-        CLKCON |= (1 << 2); /* set IDLE bit */
+        yield();
 }
 
 void lcd_clear_display(void)
diff --git a/firmware/target/arm/gigabeat/meg-fx/mmu-meg-fx.c b/firmware/target/arm/gigabeat/meg-fx/mmu-meg-fx.c
index 47abb9d46a..8094ff828f 100644
--- a/firmware/target/arm/gigabeat/meg-fx/mmu-meg-fx.c
+++ b/firmware/target/arm/gigabeat/meg-fx/mmu-meg-fx.c
@@ -1,6 +1,7 @@
 #include <string.h>
 #include "s3c2440.h"
 #include "mmu-meg-fx.h"
+#include "panic.h"
 
 void map_memory(void);
 static void enable_mmu(void);
@@ -20,7 +21,7 @@ void map_memory(void) {
     enable_mmu();
 }
 
-unsigned int* ttb_base;
+unsigned int* ttb_base = (unsigned int *) TTB_BASE;
 const int ttb_size = 4096;
 
 void set_ttb() {
@@ -29,7 +30,7 @@ void set_ttb() {
     int domain_access;
 
     /* must be 16Kb (0x4000) aligned */
-    ttb_base = (int*)0x31F00000;
+    ttb_base = (int*) TTB_BASE;
     for (i=0; i<ttb_size; i++,ttbPtr++)
     ttbPtr = 0;
     asm volatile("mcr p15, 0, %0, c2, c0, 0" : : "r" (ttb_base));
@@ -47,8 +48,8 @@ void set_page_tables() {
 
     map_section(0x30000000, 0, 32, CACHE_NONE); /* map RAM to 0 */
 
-    map_section(0x30000000, 0, 30, CACHE_ALL); /* cache the first 30 MB or RAM */
-    map_section(0x31E00000, 0x31E00000, 1, BUFFERED); /* enable buffered writing for the framebuffer */
+    map_section(0x30000000, 0, 32, CACHE_ALL); /* cache the first 31 MB or RAM */
+    map_section((int)FRAME, (int)FRAME, 1, BUFFERED); /* enable buffered writing for the framebuffer */
 }
 
 void map_section(unsigned int pa, unsigned int va, int mb, int cache_flags) {
diff --git a/firmware/target/arm/gigabeat/meg-fx/system-meg-fx.c b/firmware/target/arm/gigabeat/meg-fx/system-meg-fx.c
index b2b4a6207b..6f48a76452 100644
--- a/firmware/target/arm/gigabeat/meg-fx/system-meg-fx.c
+++ b/firmware/target/arm/gigabeat/meg-fx/system-meg-fx.c
@@ -59,6 +59,7 @@ void system_init(void)
 
     /* Turn off AC97 and Camera */
     CLKCON &= ~( (1<<19) | (1<<20) );
+
 }