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m200v4: make buttons work again (added a small delay). make m200 keymap better. Add button mappings for the sim. Remove some config defines temporary to make building work again.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19104 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dominik Wenger 2008-11-14 21:57:43 +00:00
parent 9a0224fd28
commit 83dc89f751
4 changed files with 81 additions and 40 deletions
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14
firmware/target/arm/as3525/sansa-m200v4/button-m200v4.c
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@ -30,17 +30,20 @@ void button_init_device(void)
GPIOA_DIR |= ((1<<6) | (1<<5) | (1<<4)); /* A4-A6 row outputs */
}
/* short delay is needed between raising a colum pin, and reading the row pin. values is arbitraty */
static inline void btn_delay(void) { int i = 5; while(i--) ; }
int button_read_device(void)
{
int result = BUTTON_NONE;
/* direct GPIO connections */
if (GPIOA_PIN(3))
result |= BUTTON_MENU;
/* This is a keypad using A4-A6 as columns and A0-A2 as rows */
GPIOA_PIN(4) = (1<<4);
btn_delay();
/* A4A0 is unused */
if (GPIOA_PIN(1))
@ -52,7 +55,8 @@ int button_read_device(void)
GPIOA_PIN(4) = 0x00;
GPIOA_PIN(5) = (1<<5);
btn_delay();
if (GPIOA_PIN(0))
result |= BUTTON_LEFT;
@ -66,7 +70,8 @@ int button_read_device(void)
GPIOA_PIN(6) = (1<<6);
btn_delay();
if (GPIOA_PIN(0))
result |= BUTTON_REPEATAB;
@ -75,6 +80,7 @@ int button_read_device(void)
if (GPIOA_PIN(2))
result |= BUTTON_HOLD;
GPIOA_PIN(6) = 0x00;
return result;