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author | Felix Fietkau <nbd@openwrt.org> | 2006-11-09 07:35:27 +0000 |
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committer | Felix Fietkau <nbd@openwrt.org> | 2006-11-09 07:35:27 +0000 |
commit | d829e355d402af5441de4ed64746f97dc740eca7 (patch) | |
tree | 11ae31a190428532871fd216a1c9f70dd736fda1 /package/broadcom-diag/src/gpio.h | |
parent | a8e53159b9f3f8387dc613259abcfc03b4cebf9b (diff) | |
download | master-187ad058-d829e355d402af5441de4ed64746f97dc740eca7.tar.gz master-187ad058-d829e355d402af5441de4ed64746f97dc740eca7.tar.bz2 master-187ad058-d829e355d402af5441de4ed64746f97dc740eca7.zip |
forward port diag changes from whiterussian, add extra abstraction for the gpio stuff
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5478 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/broadcom-diag/src/gpio.h')
-rw-r--r-- | package/broadcom-diag/src/gpio.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/package/broadcom-diag/src/gpio.h b/package/broadcom-diag/src/gpio.h new file mode 100644 index 0000000000..c6f34bdea2 --- /dev/null +++ b/package/broadcom-diag/src/gpio.h @@ -0,0 +1,78 @@ +#ifndef __DIAG_GPIO_H +#define __DIAG_GPIO_H + +#include <typedefs.h> +#include <osl.h> +#include <bcmdevs.h> +#include <sbutils.h> +#include <sbconfig.h> +#include <sbchipc.h> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) +#include <sbmips.h> +#else +#include <hndcpu.h> +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) +#define sbh bcm947xx_sbh +#define sbh_lock bcm947xx_sbh_lock +#endif + +#define EXTIF_ADDR 0x1f000000 +#define EXTIF_UART (EXTIF_ADDR + 0x00800000) + +#define GPIO_TYPE_NORMAL (0x0 << 24) +#define GPIO_TYPE_EXTIF (0x1 << 24) +#define GPIO_TYPE_MASK (0xf << 24) + +extern void *sbh; +extern spinlock_t sbh_lock; + +#define gpio_in() sb_gpioin(sbh) +#define gpio_out(mask, value) sb_gpioout(sbh, mask, ((value) & (mask)), GPIO_DRV_PRIORITY) +#define gpio_outen(mask, value) sb_gpioouten(sbh, mask, value, GPIO_DRV_PRIORITY) +#define gpio_control(mask, value) sb_gpiocontrol(sbh, mask, value, GPIO_DRV_PRIORITY) +#define gpio_intmask(mask, value) sb_gpiointmask(sbh, mask, value, GPIO_DRV_PRIORITY) +#define gpio_intpolarity(mask, value) sb_gpiointpolarity(sbh, mask, value, GPIO_DRV_PRIORITY) + +static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *, struct pt_regs *)) +{ + unsigned int coreidx; + unsigned long flags; + chipcregs_t *cc; + int irq; + + spin_lock_irqsave(sbh_lock, flags); + coreidx = sb_coreidx(sbh); + + irq = sb_irq(sbh) + 2; + if (enabled) + request_irq(irq, handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", handler); + else + free_irq(irq, handler); + + if ((cc = sb_setcore(sbh, SB_CC, 0))) { + int intmask; + + intmask = readl(&cc->intmask); + if (enabled) + intmask |= CI_GPIO; + else + intmask &= ~CI_GPIO; + writel(intmask, &cc->intmask); + } + sb_setcoreidx(sbh, coreidx); + spin_unlock_irqrestore(sbh_lock, flags); +} + +static inline void gpio_set_extif(int gpio, int value) +{ + volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (gpio & ~GPIO_TYPE_MASK); + if (value) + *addr = 0xFF; + else + *addr; +} + + +#endif |