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iPod 5G: Split lcd_bcm_finishup() function into two halves, and incorporate into the start and end of lcd_update_rect.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8712 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2006-02-16 23:17:49 +00:00
parent 4c63ab6a6e
commit bd203e02cb
1 changed files with 21 additions and 16 deletions
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37
firmware/drivers/lcd-ipodvideo.c
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@ -131,21 +131,7 @@ static unsigned lcd_bcm_read32(unsigned address) {
return inw(0x30000000) | inw(0x30000000) << 16;
}
static inline void lcd_bcm_finishup(void) {
unsigned data;
outw(0x31, 0x30030000);
lcd_bcm_read32(0x1FC);
do {
/* This function takes about 14ms to execute - so we yield() */
yield();
data = lcd_bcm_read32(0x1F8);
} while (data == 0xFFFA0005 || data == 0xFFFF);
lcd_bcm_read32(0x1FC);
}
extern void _HD_ARM_Update5G (fb_data *fb, int x, int y, int w, int h);
/* Update a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height) ICODE_ATTR;
@ -155,7 +141,9 @@ void lcd_update_rect(int x, int y, int width, int height)
int newx,newwidth;
int count;
int c, r;
unsigned int data;
unsigned short *src;
static int finishup_needed = 0;
/* Ensure x and width are both even - so we can read 32-bit aligned
data from lcd_framebuffer */
@ -170,6 +158,18 @@ void lcd_update_rect(int x, int y, int width, int height)
rect3 = (x + width) - 1; /* max horiz */
rect4 = (y + height) - 1; /* max vert */
if (finishup_needed) {
/* Bottom-half of original lcd_bcm_finishup() function */
do {
/* This function takes about 14ms to execute - so we yield() */
yield();
data = lcd_bcm_read32(0x1F8);
} while (data == 0xFFFA0005 || data == 0xFFFF);
}
lcd_bcm_read32(0x1FC);
/* setup the drawing region */
count=(width * height) << 1;
lcd_bcm_setup_rect(0x34, rect1, rect2, rect3, rect4, count);
@ -193,7 +193,12 @@ void lcd_update_rect(int x, int y, int width, int height)
src += (LCD_WIDTH - width);
}
lcd_bcm_finishup();
/* Top-half of original lcd_bcm_finishup() function */
outw(0x31, 0x30030000);
lcd_bcm_read32(0x1FC);
finishup_needed = 1;
}
/* Update the display.