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fuzev2: remove some delays from button driver

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25638 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-04-13 19:34:47 +00:00
parent e6934b86fd
commit 5521717958
1 changed files with 4 additions and 7 deletions
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11
firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c
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@ -30,13 +30,12 @@ extern void scrollwheel(unsigned wheel_value);
static bool hold_button = false; static bool hold_button = false;
#endif #endif
void button_init_device(void) void button_init_device(void)
{ /* activate the wheel */ {
volatile int i;
GPIOA_DIR &= ~(1<<6|1<<7); GPIOA_DIR &= ~(1<<6|1<<7);
GPIOC_DIR = 0; GPIOC_DIR = 0;
GPIOB_DIR |= (1<<4)|(1<<3)|(1<<0); GPIOB_DIR |= (1<<4)|(1<<0);
for(i = 20; i; i--) nop;
GPIOB_PIN(4) = 1<<4; GPIOB_PIN(4) = 1<<4; /* activate the wheel */
} }
unsigned read_GPIOA_67(void) unsigned read_GPIOA_67(void)
@ -82,8 +81,6 @@ int button_read_device(void)
CCU_IO &= ~(1<<12); CCU_IO &= ~(1<<12);
for(delay=8;delay;delay--) nop;
GPIOB_PIN(0) = 1<<0; GPIOB_PIN(0) = 1<<0;
for(delay = 500; delay; delay--) for(delay = 500; delay; delay--)
nop; nop;