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

SVN-Revision: 5478

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