diff options
| author | Rob Purchase <shotofadds@rockbox.org> | 2008-12-01 20:55:33 +0000 |
|---|---|---|
| committer | Rob Purchase <shotofadds@rockbox.org> | 2008-12-01 20:55:33 +0000 |
| commit | 8da8159f74f4c9373b25197e6155c753a00e1f4b (patch) | |
| tree | ab52573f5f543a23df57e93779f3149738fff616 | |
| parent | e5bf5beaee46e7012ef921bfe73f5a5db75f1dac (diff) | |
| download | rockbox-8da8159f74f4c9373b25197e6155c753a00e1f4b.zip rockbox-8da8159f74f4c9373b25197e6155c753a00e1f4b.tar.gz rockbox-8da8159f74f4c9373b25197e6155c753a00e1f4b.tar.bz2 rockbox-8da8159f74f4c9373b25197e6155c753a00e1f4b.tar.xz | |
D2: Disable IRQs when writing to the LCD 3-wire interface, and re-instate the previous delay value.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19292 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c b/firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c index fcb2e7a..d6ee5f3 100644 --- a/firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c +++ b/firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c @@ -77,7 +77,7 @@ void lcd_set_contrast(int val) static void delay_loop(void) { unsigned long x; - for (x = (unsigned)(FREQ>>24); x; x--); + for (x = (unsigned)(FREQ>>23); x; x--); } #define DELAY delay_loop() @@ -108,8 +108,12 @@ static void ltv250qv_write(unsigned int command) static void lcd_write_reg(unsigned char reg, unsigned short val) { + int level = disable_irq_save(); + ltv250qv_write(0x740000 | reg); ltv250qv_write(0x760000 | val); + + restore_irq(level); } |