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ssb: Fix the GPIO API

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This fixes the GPIO API to be usable.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch
2008-02-19 14:53:35 +01:00
committed by John W. Linville
parent 42bfad4f71
commit c2bcbe65fc
4 changed files with 60 additions and 18 deletions
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drivers/ssb/driver_extif.c
+20 -4
View File
@@ -27,12 +27,14 @@ static inline void extif_write32(struct ssb_extif *extif, u16 offset, u32 value)
ssb_write32(extif->dev, offset, value);
}
static inline void extif_write32_masked(struct ssb_extif *extif, u16 offset,
u32 mask, u32 value)
static inline u32 extif_write32_masked(struct ssb_extif *extif, u16 offset,
u32 mask, u32 value)
{
value &= mask;
value |= extif_read32(extif, offset) & ~mask;
extif_write32(extif, offset, value);
return value;
}
#ifdef CONFIG_SSB_SERIAL
@@ -120,16 +122,30 @@ u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask)
{
return extif_read32(extif, SSB_EXTIF_GPIO_IN) & mask;
}
EXPORT_SYMBOL(ssb_extif_gpio_in);
void ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value)
u32 ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value)
{
return extif_write32_masked(extif, SSB_EXTIF_GPIO_OUT(0),
mask, value);
}
EXPORT_SYMBOL(ssb_extif_gpio_out);
void ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value)
u32 ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value)
{
return extif_write32_masked(extif, SSB_EXTIF_GPIO_OUTEN(0),
mask, value);
}
EXPORT_SYMBOL(ssb_extif_gpio_outen);
u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, u32 mask, u32 value)
{
return extif_write32_masked(extif, SSB_EXTIF_GPIO_INTPOL, mask, value);
}
EXPORT_SYMBOL(ssb_extif_gpio_polarity);
u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, u32 mask, u32 value)
{
return extif_write32_masked(extif, SSB_EXTIF_GPIO_INTMASK, mask, value);
}
EXPORT_SYMBOL(ssb_extif_gpio_intmask);