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Fuzev2: fix LCD

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25368 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-03-28 04:10:36 +00:00
parent 839c73a8c5
commit a8adcf36f1
1 changed files with 19 additions and 19 deletions
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38
firmware/target/arm/as3525/sansa-fuzev2/lcd-fuzev2.c
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@ -116,10 +116,12 @@ static void as3525_dbop_init(void)
static inline void dbop_set_mode(int mode)
{
int delay = 10;
if (mode == 32 && (!(DBOP_CTRL & (1<<13|1<<14))))
DBOP_CTRL |= (1<<13|1<<14);
else if (mode == 16 && (DBOP_CTRL & (1<<13|1<<14)))
DBOP_CTRL &= ~(1<<14|1<<13);
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;
while(delay--) asm volatile("nop");
@ -127,13 +129,12 @@ static inline void dbop_set_mode(int mode)
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++;
DBOP_DOUT16 = swap16(*p_bytes++);
if (!(--count))
return;
}
@ -145,7 +146,9 @@ static void dbop_write_data(const int16_t* p_bytes, int count)
data = (int32_t*)p_bytes;
while (count > 1)
{
DBOP_DOUT32 = *data++;
int pixels = *data++;
pixels = (swap16(pixels >> 16) << 16) | (swap16(pixels & 0xffff));
DBOP_DOUT32 = pixels;
count -= 2;
/* Wait if push fifo is full */
@ -160,23 +163,19 @@ static void dbop_write_data(const int16_t* p_bytes, int count)
dbop_write_data((int16_t*)data, 1);
}
static void lcd_write_cmd(short cmd)
static void lcd_write_cmd(unsigned short cmd)
{
volatile int i;
for(i=0;i<20;i++) nop;
for(i=0;i<0x20;i++) asm volatile ("nop\n");
int r3 = 0x2000;
DBOP_CTRL |= r3;
r3 >>= 1;
DBOP_CTRL &= ~r3;
r3 <<= 2;
DBOP_CTRL &= ~r3;
DBOP_CTRL |= 1<<13;
DBOP_CTRL &= ~(1<<14); // 2 serial words
DBOP_CTRL &= ~(1<<12); // 8 bit data width
DBOP_TIMPOL_23 = 0xA12F0036;
cmd = swap16(cmd);
DBOP_DOUT16 = cmd;
DBOP_DOUT = swap16(cmd);
while ((DBOP_STAT & (1<<10)) == 0);
for(i=0;i<20;i++) nop;
for(i=0;i<0x20;i++) asm volatile ("nop\n");
DBOP_TIMPOL_23 = 0xA12FE037;
}
@ -277,11 +276,12 @@ void lcd_init_device(void)
GPIOA_PIN(0) = 1;
GPIOA_PIN(4) = 0;
GPIOB_DIR |= 0x2f;
GPIOB_DIR |= 0xf;
GPIOB_PIN(0) = 1<<0;
GPIOB_PIN(1) = 1<<1;
GPIOB_PIN(2) = 1<<2;
GPIOB_PIN(3) = 1<<3;
GPIOA_PIN(4) = 1<<4;
GPIOA_PIN(5) = 1<<5;