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Fix "lcd driver speed up" on e200v2

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Flyspray: FS#10272
Author: Michael Chicoine

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22859 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2009-09-30 18:54:42 +00:00
parent 619ffcb0e6
commit 6bd92a74d3
1 changed files with 11 additions and 9 deletions
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20
firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
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@ -98,12 +98,11 @@ static unsigned short r_entry_mode = R_ENTRY_MODE_HORZ_NORMAL;
#define R_DISP_CONTROL_REV 0x0000
static unsigned short r_disp_control_rev = R_DISP_CONTROL_NORMAL;
/* TODO: Implement this function */
static void lcd_delay(int x)
static inline void lcd_delay(int x)
{
/* This is just arbitrary - the OF does something more complex */
x *= 1024;
while (x--);
do {
asm volatile ("nop\n");
} while (x--);
}
/* DBOP initialisation, do what OF does */
@ -130,10 +129,13 @@ static void ams3525_dbop_init(void)
/* TODO: The OF calls some other functions here, but maybe not important */
}
#define lcd_write_single_data16(value) do {\
DBOP_CTRL &= ~(1<<14|1<<13); \
DBOP_DOUT16 = (fb_data)(value); \
} while(0)
static void lcd_write_single_data16(unsigned short value)
{
DBOP_CTRL &= ~(1<<14|1<<13);
lcd_delay(10);
DBOP_DOUT16 = value;
while ((DBOP_STAT & (1<<10)) == 0);
}
static void lcd_write_cmd(int cmd)
{