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Diffstat (limited to 'firmware/target/arm/iriver/h10/lcd-h10_5gb.c')
-rw-r--r--firmware/target/arm/iriver/h10/lcd-h10_5gb.c114
1 files changed, 39 insertions, 75 deletions
diff --git a/firmware/target/arm/iriver/h10/lcd-h10_5gb.c b/firmware/target/arm/iriver/h10/lcd-h10_5gb.c
index 5b022e09c5..669654f5c3 100644
--- a/firmware/target/arm/iriver/h10/lcd-h10_5gb.c
+++ b/firmware/target/arm/iriver/h10/lcd-h10_5gb.c
@@ -108,6 +108,7 @@ void lcd_init_device(void)
{
CLCD_CLOCK_SRC |= 0xc0000000; /* Set LCD interface clock to PLL */
/* H10 LCD is initialised by the bootloader */
+ lcd_write_reg(R_ENTRY_MODE, 0x1030); /* BGR =1, ID1 = 1, ID0 = 1 */
}
/*** update functions ***/
@@ -275,88 +276,51 @@ void lcd_blit_yuv(unsigned char * const src[3],
/* Update a fraction of the display. */
-void lcd_update_rect(int x0, int y0, int width, int height)
+void lcd_update_rect(int x, int y, int width, int height)
{
- int x1, y1;
- int newx,newwidth;
- unsigned long *addr;
+ const fb_data *addr;
+ int bytes_to_write;
+
+ if (x + width >= LCD_WIDTH)
+ width = LCD_WIDTH - x;
+ if (y + height >= LCD_HEIGHT)
+ height = LCD_HEIGHT - y;
+
+ if ((width <= 0) || (height <= 0))
+ return; /* Nothing left to do. 0 would hang the transfer. */
+
+ /* Ensure x and width are both even, so we can read
+ * 32-bit aligned data from the framebuffer */
+ width = (width + (x & 1) + 1) & ~1;
+ x &= ~1;
+
+ lcd_write_reg(R_VERT_RAM_ADDR_POS, (LCD_HEIGHT-1) << 8);
+ lcd_write_reg(R_HORIZ_RAM_ADDR_POS, ((x + width - 1) << 8) | x);
+ lcd_write_reg(R_RAM_ADDR_SET, (y << 8) | x);
- /* Ensure x and width are both even - so we can read 32-bit aligned
- data from lcd_framebuffer */
- newx=x0&~1;
- newwidth=width&~1;
- if (newx+newwidth < x0+width) { newwidth+=2; }
- x0=newx; width=newwidth;
-
- /* calculate the drawing region */
- y1 = (y0 + height) - 1; /* max vert */
- x1 = (x0 + width) - 1; /* max horiz */
-
-
- /* swap max horiz < start horiz */
- if (y1 < y0) {
- int t;
- t = y0;
- y0 = y1;
- y1 = t;
- }
-
- /* swap max vert < start vert */
- if (x1 < x0) {
- int t;
- t = x0;
- x0 = x1;
- x1 = t;
- }
-
- /* max horiz << 8 | start horiz */
- lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (x1 << 8) | x0);
-
- /* max vert << 8 | start vert */
- lcd_write_reg(R_VERT_RAM_ADDR_POS, (y1 << 8) | y0);
-
- /* start vert << 8 | start horiz */
- lcd_write_reg(R_RAM_ADDR_SET, (y0 << 8) | x0);
-
- /* start drawing */
lcd_send_cmd(R_WRITE_DATA_2_GRAM);
- addr = (unsigned long*)&lcd_framebuffer[y0][x0];
-
- while (height > 0) {
- int c, r;
- int h, pixels_to_write;
-
- pixels_to_write = (width * height) * 2;
- h = height;
-
- /* calculate how much we can do in one go */
- if (pixels_to_write > 0x10000) {
- h = (0x10000/2) / width;
- pixels_to_write = (width * h) * 2;
- }
-
- LCD2_BLOCK_CTRL = 0x10000080;
- LCD2_BLOCK_CONFIG = 0xc0010000 | (pixels_to_write - 1);
- LCD2_BLOCK_CTRL = 0x34000000;
+ addr = &lcd_framebuffer[y][x];
+ bytes_to_write = width * height * sizeof(fb_data);
+ /* must be <= 0x10000, but that's guaranteed on H10. */
- /* for each row */
- for (r = 0; r < h; r++) {
- /* for each column */
- for (c = 0; c < width; c += 2) {
- while (!(LCD2_BLOCK_CTRL & LCD2_BLOCK_TXOK));
-
- /* output 2 pixels */
- LCD2_BLOCK_DATA = *addr++;
- }
- addr += (LCD_WIDTH - width)/2;
+ LCD2_BLOCK_CTRL = 0x10000080;
+ LCD2_BLOCK_CONFIG = 0xc0010000 | (bytes_to_write - 1);
+ LCD2_BLOCK_CTRL = 0x34000000;
+
+ do
+ {
+ int w = width >> 1;
+ do
+ {
+ while (!(LCD2_BLOCK_CTRL & LCD2_BLOCK_TXOK));
+ LCD2_BLOCK_DATA = *(unsigned long*)addr; /* output 2 pixels */
+ addr += 2;
}
-
- while (!(LCD2_BLOCK_CTRL & LCD2_BLOCK_READY));
- LCD2_BLOCK_CONFIG = 0;
-
- height -= h;
+ while (--w > 0);
+ addr += LCD_WIDTH - width;
}
+ while (--height > 0);
}
/* Update the display.