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Sansa Clip: grey lib support (not calibrated yet)

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Declare HAVE_LCD_INVERT
Put the framebuffer into IRAM

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19249 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2008-11-27 21:07:54 +00:00
parent 6d34e33b94
commit 81fe625a62
5 changed files with 142 additions and 12 deletions
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28
firmware/target/arm/as3525/sansa-clip/lcd-ssd1303.c
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@ -88,6 +88,7 @@ void lcd_write_command(int byte)
GPIOA_PIN(5) = 0;
/* Write command */
/* Only bits 15:12 and 3:0 of DBOP_DOUT are meaningful */
DBOP_DOUT = (byte << 8) | byte;
/* While push fifo is not empty */
@ -103,6 +104,7 @@ void lcd_write_data(const fb_data* p_bytes, int count)
while (count--)
{
/* Write pixels */
/* Only bits 15:12 and 3:0 of DBOP_DOUT are meaningful */
DBOP_DOUT = (*p_bytes << 8) | *p_bytes;
p_bytes++; /* next packed pixels */
@ -266,26 +268,30 @@ void lcd_blit_mono(const unsigned char *data, int x, int by, int width,
}
}
/* Helper function for lcd_grey_phase_blit(). */
void lcd_grey_data(unsigned char *values, unsigned char *phases, int count);
/* Performance function that works with an external buffer
note that by and bheight are in 8-pixel units! */
void lcd_blit_grey_phase(unsigned char *values, unsigned char *phases,
int x, int by, int width, int bheight, int stride)
{
/* TODO */
#if 0
if(!display_on)
return;
#endif
(void)values;
(void)phases;
(void)x;
(void)by;
(void)width;
(void)bheight;
(void)stride;
stride <<= 3; /* 8 pixels per block */
/* Copy display bitmap to hardware */
while (bheight--)
{
lcd_write_command (LCD_CNTL_PAGE | (by++ & 0xf));
lcd_write_command (LCD_CNTL_HIGHCOL | (((x+2+xoffset)>>4) & 0xf));
lcd_write_command (LCD_CNTL_LOWCOL | ((x+2+xoffset) & 0xf));
lcd_grey_data(values, phases, width);
values += stride;
phases += stride;
}
}
/* Update the display.