88 lines
1.7 KiB
C
88 lines
1.7 KiB
C
#ifndef __BCM947XX_GPIO_H
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#define __BCM947XX_GPIO_H
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#include <linux/ssb/ssb.h>
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#include <linux/ssb/ssb_driver_chipcommon.h>
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#include <linux/ssb/ssb_driver_extif.h>
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extern struct ssb_bus ssb;
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static inline int gpio_request(unsigned gpio, const char *label)
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{
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return 0;
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}
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static inline void gpio_free(unsigned gpio)
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{
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}
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static inline int gpio_direction_input(unsigned gpio)
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{
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if (ssb.chipco.dev)
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ssb_chipco_gpio_outen(&ssb.chipco, 1 << gpio, 0);
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else if (ssb.extif.dev)
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ssb_extif_gpio_outen(&ssb.extif, 1 << gpio, 0);
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else
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return -EINVAL;
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return 0;
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}
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static inline int gpio_direction_output(unsigned gpio, int value)
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{
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if (ssb.chipco.dev)
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ssb_chipco_gpio_outen(&ssb.chipco, 1 << gpio, value << gpio);
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else if (ssb.extif.dev)
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ssb_extif_gpio_outen(&ssb.extif, 1 << gpio, value << gpio);
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else
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return -EINVAL;
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return 0;
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}
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static inline int gpio_to_irq(unsigned gpio)
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{
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struct ssb_device *dev;
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dev = ssb.chipco.dev;
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if (!dev)
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dev = ssb.extif.dev;
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if (!dev)
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return -EINVAL;
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return ssb_mips_irq(dev) + 2;
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}
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static inline int irq_to_gpio(unsigned gpio)
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{
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return -EINVAL;
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}
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static inline int gpio_get_value(unsigned gpio)
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{
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if (ssb.chipco.dev)
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return ssb_chipco_gpio_in(&ssb.chipco, 1 << gpio) ? 1 : 0;
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else if (ssb.extif.dev)
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return ssb_extif_gpio_in(&ssb.extif, 1 << gpio) ? 1 : 0;
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else
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return 0;
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}
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static inline int gpio_set_value(unsigned gpio, int value)
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{
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if (ssb.chipco.dev)
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ssb_chipco_gpio_out(&ssb.chipco, 1 << gpio, (value ? 1 << gpio : 0));
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else if (ssb.extif.dev)
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ssb_extif_gpio_out(&ssb.extif, 1 << gpio, (value ? 1 << gpio : 0));
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return 0;
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}
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/* cansleep wrappers */
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#include <asm-generic/gpio.h>
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#endif /* __BCM947XX_GPIO_H */
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