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new interface for dealing with GPIO banks

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This commit is contained in:
Mariano Alvira 2010-03-16 22:01:34 -04:00
parent c4f438616a
commit 716f166dd3
2 changed files with 65 additions and 0 deletions
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56
lib/gpio.c Normal file
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@ -0,0 +1,56 @@
#include <mc1322x.h>
#include <types.h>
inline void gpio_pad_dir(uint64_t data)
{
*GPIO_PAD_DIR0 = (data & 0xffffffff);
*GPIO_PAD_DIR1 = (data >> 32);
}
inline void gpio_data(uint64_t data)
{
*GPIO_DATA0 = (data & 0xffffffff);
*GPIO_DATA1 = (data >> 32);
}
inline void gpio_pad_pu_en(uint64_t data)
{
*GPIO_PAD_PU_EN0 = (data & 0xffffffff);
*GPIO_PAD_PU_EN1 = (data >> 32);
}
inline void gpio_data_sel(uint64_t data)
{
*GPIO_DATA_SEL0 = (data & 0xffffffff);
*GPIO_DATA_SEL1 = (data >> 32);
}
inline void gpio_pad_pu_sel(uint64_t data)
{
*GPIO_PAD_PU_SEL0 = (data & 0xffffffff);
*GPIO_PAD_PU_SEL1 = (data >> 32);
}
inline void gpio_data_set(uint64_t data)
{
*GPIO_DATA_SET0 = (data & 0xffffffff);
*GPIO_DATA_SET1 = (data >> 32);
}
inline void gpio_data_reset(uint64_t data)
{
*GPIO_DATA_RESET0 = (data & 0xffffffff);
*GPIO_DATA_RESET1 = (data >> 32);
}
inline void gpio_pad_dir_set(uint64_t data)
{
*GPIO_PAD_DIR_SET0 = (data & 0xffffffff);
*GPIO_PAD_DIR_SET1 = (data >> 32);
}
inline void gpio_pad_dir_reset(uint64_t data)
{
*GPIO_PAD_DIR_RESET0 = (data & 0xffffffff);
*GPIO_PAD_DIR_RESET1 = (data >> 32);
}

9
lib/include/gpio.h
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@ -25,6 +25,15 @@
#define GPIO_PAD_DIR_RESET0 ((volatile uint32_t *) 0x80000060) #define GPIO_PAD_DIR_RESET0 ((volatile uint32_t *) 0x80000060)
#define GPIO_PAD_DIR_RESET1 ((volatile uint32_t *) 0x80000064) #define GPIO_PAD_DIR_RESET1 ((volatile uint32_t *) 0x80000064)
inline void gpio_pad_dir(uint64_t data);
inline void gpio_data(uint64_t data);
inline void gpio_pad_pu_en(uint64_t data);
inline void gpio_data_sel(uint64_t data);
inline void gpio_data_pu_sel(uint64_t data);
inline void gpio_data_set(uint64_t data);
inline void gpio_data_reset(uint64_t data);
inline void gpio_pad_dir_set(uint64_t data);
inline void gpio_pad_dir_reset(uint64_t data);
/* select pullup or pulldown for GPIO 0-31 (b=0-31) */ /* select pullup or pulldown for GPIO 0-31 (b=0-31) */
#define gpio_sel0_pullup(b) (set_bit(reg32(GPIO_PAD_PU_SEL0),b)) #define gpio_sel0_pullup(b) (set_bit(reg32(GPIO_PAD_PU_SEL0),b))