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H10 button driver: Use atomic GPIO bit manipulation.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15839 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2007-11-27 20:23:12 +00:00
parent db5206742e
commit 05784b52ab
1 changed files with 7 additions and 7 deletions
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14
firmware/target/arm/iriver/h10/button-h10.c
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@ -34,15 +34,15 @@
void button_init_device(void)
{
/* Enable REW, FF, Play, Left, Right, Hold buttons */
GPIOA_ENABLE |= 0xfc;
GPIO_SET_BITWISE(GPIOA_ENABLE, 0xfc);
/* Enable POWER button */
GPIOB_ENABLE |= 0x1;
GPIO_SET_BITWISE(GPIOB_ENABLE, 0x01);
/* We need to output to pin 6 of GPIOD when reading the scroll pad value */
GPIOD_ENABLE |= 0x40;
GPIOD_OUTPUT_EN |= 0x40;
GPIOD_OUTPUT_VAL |= 0x40;
GPIO_SET_BITWISE(GPIOD_ENABLE, 0x40);
GPIO_SET_BITWISE(GPIOD_OUTPUT_EN, 0x40);
GPIO_SET_BITWISE(GPIOD_OUTPUT_VAL, 0x40);
}
bool button_hold(void)
@ -97,10 +97,10 @@ int button_read_device(void)
/* Read scroller */
if ( GPIOD_INPUT_VAL & 0x20 )
{
GPIOD_OUTPUT_VAL &=~ 0x40;
GPIO_CLEAR_BITWISE(GPIOD_OUTPUT_VAL, 0x40);
udelay(250);
data = adc_scan(ADC_SCROLLPAD);
GPIOD_OUTPUT_VAL |= 0x40;
GPIO_SET_BITWISE(GPIOD_OUTPUT_VAL, 0x40);
if(data < 0x224)
{