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Move delay a bit in dbop_read_input for ams sansa targets using the DBOP port for button readout

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26585 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken 2010-06-05 15:57:32 +00:00
parent 797abbed54
commit 20856e1c10
1 changed files with 3 additions and 2 deletions
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5
firmware/target/arm/as3525/dbop-as3525.c
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@ -83,10 +83,11 @@ unsigned short dbop_read_input(void)
/* make sure that the DBOP FIFO is empty */ /* make sure that the DBOP FIFO is empty */
while ((DBOP_STAT & (1<<10)) == 0); while ((DBOP_STAT & (1<<10)) == 0);
/* write DBOP_DOUT to pre-charge DBOP data lines with a defined level */
DBOP_TIMPOL_23 = 0xe007e007; /* no strobe towards lcd */
int delay = 10; int delay = 10;
while (delay--) asm volatile ("nop\n"); while (delay--) asm volatile ("nop\n");
/* write DBOP_DOUT to pre-charge DBOP data lines with a defined level */
DBOP_TIMPOL_23 = 0xe007e007; /* no strobe towards lcd */
DBOP_CTRL = (1 << 19) | /* tri-state output */ DBOP_CTRL = (1 << 19) | /* tri-state output */
(1 << 16) | /* enw=1 (enable write) */ (1 << 16) | /* enw=1 (enable write) */
(1 << 12); /* ow=1 (16-bit data width) */ (1 << 12); /* ow=1 (16-bit data width) */