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Fuzev2: Reduce code duplication by reusing Fuzev1 code.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25481 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-04-05 12:01:44 +00:00
parent 95b03d2974
commit 446a67698f
5 changed files with 25 additions and 1098 deletions
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65
firmware/target/arm/as3525/sansa-fuzev2/lcd-fuzev2.c
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@ -29,6 +29,7 @@
#include "debug.h"
#include "system.h"
#include "clock-target.h"
#include "dbop-as3525.h"
/* The controller is unknown, but some registers appear to be the same as the
HD66789R */
@ -113,67 +114,13 @@ static void as3525_dbop_init(void)
DBOP_TIMPOL_23 = 0xA12FE037;
}
static inline void dbop_set_mode(int mode)
{
unsigned long ctrl = DBOP_CTRL;
int words = (ctrl >> 13) & 3; // bits 14:13
if (mode == 32 && words != 2)
DBOP_CTRL = (ctrl & ~(1<<13)) | (1<<14); // 4 serial words
else if (mode == 16 && words != 1)
DBOP_CTRL = (ctrl & ~(1<<14)) | (1<<13); // 2 serial words
else
return;
lcd_delay(10);
}
static void dbop_write_data(const int16_t* p_bytes, int count)
{
const int32_t *data;
if ((intptr_t)p_bytes & 0x3 || count == 1)
{ /* need to do a single 16bit write beforehand if the address is
* not word aligned or count is 1, switch to 16bit mode if needed */
dbop_set_mode(16);
DBOP_DOUT16 = *p_bytes++;
if (!(--count))
return;
}
/* from here, 32bit transfers are save
* set it to transfer 4*(outputwidth) units at a time,
* if bit 12 is set it only does 2 halfwords though (we never set it)
* switch to 32bit output if needed */
dbop_set_mode(32);
data = (int32_t*)p_bytes;
while (count > 1)
{
DBOP_DOUT32 = *data++;
count -= 2;
/* Wait if push fifo is full */
while ((DBOP_STAT & (1<<6)) != 0);
}
/* While push fifo is not empty */
while ((DBOP_STAT & (1<<10)) == 0);
/* due to the 32bit alignment requirement or uneven count,
* we possibly need to do a 16bit transfer at the end also */
if (count > 0)
dbop_write_data((int16_t*)data, 1);
}
static void lcd_write_cmd(unsigned short cmd)
{
volatile int i;
lcd_delay(0x20);
DBOP_CTRL |= 1<<13;
DBOP_CTRL &= ~(1<<14); // 2 serial words
DBOP_CTRL &= ~(1<<12); // 8 bit data width
unsigned short data = swap16(cmd);
DBOP_TIMPOL_23 = 0xA12F0036;
DBOP_DOUT = swap16(cmd);
while ((DBOP_STAT & (1<<10)) == 0);
for(i=0;i<0x20;i++) asm volatile ("nop\n");
dbop_write_data(&data, 1);
lcd_delay(32);
DBOP_TIMPOL_23 = 0xA12FE037;
}
@ -403,8 +350,6 @@ void lcd_blit_yuv(unsigned char * const src[3],
lcd_window_y(y, y + 1);
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
dbop_set_mode(32);
lcd_write_yuv420_lines_odither(yuv_src, width, stride, x, y);
yuv_src[0] += stride << 1; /* Skip down two luma lines */
yuv_src[1] += stride >> 1; /* Skip down one chroma line */
@ -420,8 +365,6 @@ void lcd_blit_yuv(unsigned char * const src[3],
lcd_window_y(y, y + 1);
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
dbop_set_mode(32);
lcd_write_yuv420_lines(yuv_src, width, stride);
yuv_src[0] += stride << 1; /* Skip down two luma lines */
yuv_src[1] += stride >> 1; /* Skip down one chroma line */