diff options
Diffstat (limited to 'include/asm-arm/arch-pxa/gpio.h')
-rw-r--r-- | include/asm-arm/arch-pxa/gpio.h | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/include/asm-arm/arch-pxa/gpio.h b/include/asm-arm/arch-pxa/gpio.h index e67c23821017..aeba24347f8e 100644 --- a/include/asm-arm/arch-pxa/gpio.h +++ b/include/asm-arm/arch-pxa/gpio.h | |||
@@ -25,10 +25,8 @@ | |||
25 | #define __ASM_ARCH_PXA_GPIO_H | 25 | #define __ASM_ARCH_PXA_GPIO_H |
26 | 26 | ||
27 | #include <asm/arch/pxa-regs.h> | 27 | #include <asm/arch/pxa-regs.h> |
28 | #include <asm/arch/irqs.h> | 28 | #include <asm/irq.h> |
29 | #include <asm/arch/hardware.h> | 29 | #include <asm/hardware.h> |
30 | |||
31 | #include <asm/errno.h> | ||
32 | 30 | ||
33 | static inline int gpio_request(unsigned gpio, const char *label) | 31 | static inline int gpio_request(unsigned gpio, const char *label) |
34 | { | 32 | { |
@@ -42,26 +40,36 @@ static inline void gpio_free(unsigned gpio) | |||
42 | 40 | ||
43 | static inline int gpio_direction_input(unsigned gpio) | 41 | static inline int gpio_direction_input(unsigned gpio) |
44 | { | 42 | { |
45 | if (gpio > PXA_LAST_GPIO) | 43 | return pxa_gpio_mode(gpio | GPIO_IN); |
46 | return -EINVAL; | ||
47 | pxa_gpio_mode(gpio | GPIO_IN); | ||
48 | } | 44 | } |
49 | 45 | ||
50 | static inline int gpio_direction_output(unsigned gpio) | 46 | static inline int gpio_direction_output(unsigned gpio, int value) |
51 | { | 47 | { |
52 | if (gpio > PXA_LAST_GPIO) | 48 | return pxa_gpio_mode(gpio | GPIO_OUT | (value ? 0 : GPIO_DFLT_LOW)); |
53 | return -EINVAL; | ||
54 | pxa_gpio_mode(gpio | GPIO_OUT); | ||
55 | } | 49 | } |
56 | 50 | ||
57 | /* REVISIT these macros are correct, but suffer code explosion | 51 | static inline int __gpio_get_value(unsigned gpio) |
58 | * for non-constant parameters. Provide out-line versions too. | 52 | { |
59 | */ | 53 | return GPLR(gpio) & GPIO_bit(gpio); |
60 | #define gpio_get_value(gpio) \ | 54 | } |
61 | (GPLR(gpio) & GPIO_bit(gpio)) | 55 | |
56 | #define gpio_get_value(gpio) \ | ||
57 | (__builtin_constant_p(gpio) ? \ | ||
58 | __gpio_get_value(gpio) : \ | ||
59 | pxa_gpio_get_value(gpio)) | ||
60 | |||
61 | static inline void __gpio_set_value(unsigned gpio, int value) | ||
62 | { | ||
63 | if (value) | ||
64 | GPSR(gpio) = GPIO_bit(gpio); | ||
65 | else | ||
66 | GPCR(gpio) = GPIO_bit(gpio); | ||
67 | } | ||
62 | 68 | ||
63 | #define gpio_set_value(gpio,value) \ | 69 | #define gpio_set_value(gpio,value) \ |
64 | ((value) ? (GPSR(gpio) = GPIO_bit(gpio)):(GPCR(gpio) = GPIO_bit(gpio))) | 70 | (__builtin_constant_p(gpio) ? \ |
71 | __gpio_set_value(gpio, value) : \ | ||
72 | pxa_gpio_set_value(gpio, value)) | ||
65 | 73 | ||
66 | #include <asm-generic/gpio.h> /* cansleep wrappers */ | 74 | #include <asm-generic/gpio.h> /* cansleep wrappers */ |
67 | 75 | ||