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bsp/lpc24xx: Evaluate LPC17XX pin type

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New pin type LPC17XX_PIN_TYPE_OPEN_DRAIN.
This commit is contained in:
Sebastian Huber
2012-10-12 10:04:28 +02:00
parent 4275124e9b
commit e9e5b92d36
2 changed files with 20 additions and 4 deletions
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9
c/src/lib/libbsp/arm/lpc24xx/include/io.h
View File

@@ -240,7 +240,8 @@ typedef enum {
LPC17XX_PIN_TYPE_ADC,
LPC17XX_PIN_TYPE_DAC,
LPC17XX_PIN_TYPE_I2C,
LPC17XX_PIN_TYPE_I2C_FAST_PLUS
LPC17XX_PIN_TYPE_I2C_FAST_PLUS,
LPC17XX_PIN_TYPE_OPEN_DRAIN
} lpc17xx_pin_type;
#ifdef ARM_MULTILIB_ARCH_V4
@@ -1102,8 +1103,10 @@ rtems_status_code lpc24xx_pin_config(
LPC24XX_PIN(1, 27, LPC24XX_PIN_FUNCTION_10, 2)
#define LPC24XX_PIN_USB_SCL_1\
LPC24XX_PIN(1, 28, LPC24XX_PIN_FUNCTION_01, 1)
#define LPC24XX_PIN_USB_SDA_1\
LPC24XX_PIN(1, 29, LPC24XX_PIN_FUNCTION_01, 1)
#define LPC24XX_PIN_USB_SDA_1 \
LPC24XX_PIN_WITH_TYPE( \
1, 29, LPC24XX_PIN_FUNCTION_01, 1, LPC17XX_PIN_TYPE_OPEN_DRAIN \
)
#define LPC24XX_PIN_USB_CONNECT_1\
LPC24XX_PIN(2, 9, LPC24XX_PIN_FUNCTION_01, 1)

15
c/src/lib/libbsp/arm/lpc24xx/misc/io.c
View File

@@ -394,8 +394,21 @@ lpc24xx_pin_set_function(
*pinsel = (*pinsel & ~pinsel_mask) | pinsel_value;
rtems_interrupt_enable(level);
#else
uint32_t iocon_extra = 0;
/* TODO */
*iocon = IOCON_FUNC(pin_range.fields.function);
switch (pin_range.fields.type) {
case LPC17XX_PIN_TYPE_I2C_FAST_PLUS:
iocon_extra |= IOCON_HS;
break;
case LPC17XX_PIN_TYPE_OPEN_DRAIN:
iocon_extra |= IOCON_OD;
break;
default:
break;
}
*iocon = IOCON_FUNC(pin_range.fields.function) | iocon_extra;
#endif
return RTEMS_SUCCESSFUL;