target/linux/brcm47xx/files/include/asm-mips/mach-bcm947xx/gpio.h

   1 #ifndef __BCM947XX_GPIO_H
   2 #define __BCM947XX_GPIO_H
   3
   4 #include <linux/ssb/ssb_embedded.h>
   5
   6 extern struct ssb_bus ssb;
   7
   8 static inline int gpio_request(unsigned gpio, const char *label)
   9 {
  10         return 0;
  11 }
  12
  13 static inline void gpio_free(unsigned gpio)
  14 {
  15 }
  16
  17 static inline int gpio_direction_input(unsigned gpio)
  18 {
  19         ssb_gpio_outen(&ssb, 1 << gpio, 0);
  20         return 0;
  21 }
  22
  23 static inline int gpio_direction_output(unsigned gpio, int value)
  24 {
  25         ssb_gpio_outen(&ssb, 1 << gpio, value << gpio);
  26         return 0;
  27 }
  28
  29
  30 static inline int gpio_to_irq(unsigned gpio)
  31 {
  32         struct ssb_device *dev;
  33
  34         dev = ssb.chipco.dev;
  35         if (!dev)
  36                 dev = ssb.extif.dev;
  37         if (!dev)
  38                 return -EINVAL;
  39
  40         return ssb_mips_irq(dev) + 2;
  41 }
  42
  43 static inline int irq_to_gpio(unsigned gpio)
  44 {
  45         return -EINVAL;
  46 }
  47
  48
  49 static inline int gpio_get_value(unsigned gpio)
  50 {
  51         return !!ssb_gpio_in(&ssb, 1 << gpio);
  52 }
  53
  54 static inline int gpio_set_value(unsigned gpio, int value)
  55 {
  56         ssb_gpio_out(&ssb, 1 << gpio, (value ? 1 << gpio : 0));
  57         return 0;
  58 }
  59
  60
  61 /* cansleep wrappers */
  62 #include <asm-generic/gpio.h>
  63
  64
  65 #endif /* __BCM947XX_GPIO_H */
  66