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make gpio conformant to generic gpio spec.

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8911 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
ejka
2007-09-21 12:37:50 +00:00
parent 9fb66acf63
commit 35a0fb9185
5 changed files with 33 additions and 33 deletions
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55
target/linux/ar7/files/include/asm-mips/ar7/gpio.h
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@@ -22,36 +22,10 @@
#define AR7_GPIO_MAX 32
extern int gpio_request(unsigned gpio, char *label);
extern int gpio_request(unsigned gpio, const char *label);
extern void gpio_free(unsigned gpio);
/* Common GPIO layer */
static inline int gpio_direction_input(unsigned gpio)
{
void __iomem *gpio_dir =
(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_DIR);
if (gpio >= AR7_GPIO_MAX)
return -EINVAL;
writel(readl(gpio_dir) | (1 << gpio), gpio_dir);
return 0;
}
static inline int gpio_direction_output(unsigned gpio)
{
void __iomem *gpio_dir =
(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_DIR);
if (gpio >= AR7_GPIO_MAX)
return -EINVAL;
writel(readl(gpio_dir) & ~(1 << gpio), gpio_dir);
return 0;
}
static inline int gpio_get_value(unsigned gpio)
{
void __iomem *gpio_in =
@@ -78,6 +52,33 @@ static inline void gpio_set_value(unsigned gpio, int value)
writel(tmp, gpio_out);
}
static inline int gpio_direction_input(unsigned gpio)
{
void __iomem *gpio_dir =
(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_DIR);
if (gpio >= AR7_GPIO_MAX)
return -EINVAL;
writel(readl(gpio_dir) | (1 << gpio), gpio_dir);
return 0;
}
static inline int gpio_direction_output(unsigned gpio, int value)
{
void __iomem *gpio_dir =
(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_DIR);
if (gpio >= AR7_GPIO_MAX)
return -EINVAL;
gpio_set_value(gpio, value);
writel(readl(gpio_dir) & ~(1 << gpio), gpio_dir);
return 0;
}
static inline int gpio_to_irq(unsigned gpio)
{
return -EINVAL;