forward port diag changes from whiterussian, add extra abstraction for the gpio stuff

[openwrt/openwrt.git] / package / broadcom-diag / src / gpio.h

diff --git a/package/broadcom-diag/src/gpio.h b/package/broadcom-diag/src/gpio.h
new file mode 100644 (file)
index 0000000..c6f34bd
--- /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