1 files changed, 130 insertions, 0 deletions
diff --git a/ar5312/ar5315_gpio.c b/ar5312/ar5315_gpio.c
new file mode 100644
index 0000000..2aca97a
--- /dev/null
+++ b/ar5312/ar5315_gpio.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
+ * Copyright (c) 2002-2008 Atheros Communications, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * $Id: ar5315_gpio.c,v 1.3 2008/11/10 04:08:04 sam Exp $
+ */
+#include "opt_ah.h"
+
+#if (AH_SUPPORT_2316 || AH_SUPPORT_2317)
+
+#include "ah.h"
+#include "ah_internal.h"
+#include "ah_devid.h"
+
+#include "ar5312/ar5312.h"
+#include "ar5312/ar5312reg.h"
+#include "ar5312/ar5312phy.h"
+
+#define	AR_NUM_GPIO	7		/* 6 GPIO pins */
+#define	AR5315_GPIOD_MASK	0x0000007F	/* GPIO data reg r/w mask */
+
+/*
+ * Configure GPIO Output lines
+ */
+HAL_BOOL
+ar5315GpioCfgOutput(struct ath_hal *ah, uint32_t gpio)
+{
+	uint32_t gpioOffset = (AR5315_GPIO_BASE - ((uint32_t) ah->ah_sh));
+
+	HALASSERT(gpio < AR_NUM_GPIO);
+
+	OS_REG_WRITE(ah, gpioOffset+AR5315_GPIODIR,
+		  (OS_REG_READ(ah, gpioOffset+AR5315_GPIODIR) &~ AR5315_GPIODIR_M(gpio))
+		| AR5315_GPIODIR_O(gpio));
+
+	return AH_TRUE;
+}
+
+/*
+ * Configure GPIO Input lines
+ */
+HAL_BOOL
+ar5315GpioCfgInput(struct ath_hal *ah, uint32_t gpio)
+{
+	uint32_t gpioOffset = (AR5315_GPIO_BASE - ((uint32_t) ah->ah_sh));
+
+	HALASSERT(gpio < AR_NUM_GPIO);
+
+	OS_REG_WRITE(ah, gpioOffset+AR5315_GPIODIR,
+		  (OS_REG_READ(ah, gpioOffset+AR5315_GPIODIR) &~ AR5315_GPIODIR_M(gpio))
+		| AR5315_GPIODIR_I(gpio));
+
+	return AH_TRUE;
+}
+
+/*
+ * Once configured for I/O - set output lines
+ */
+HAL_BOOL
+ar5315GpioSet(struct ath_hal *ah, uint32_t gpio, uint32_t val)
+{
+	uint32_t reg;
+        uint32_t gpioOffset = (AR5315_GPIO_BASE - ((uint32_t) ah->ah_sh));
+
+	HALASSERT(gpio < AR_NUM_GPIO);
+
+	reg =  OS_REG_READ(ah, gpioOffset+AR5315_GPIODO);
+	reg &= ~(1 << gpio);
+	reg |= (val&1) << gpio;
+
+	OS_REG_WRITE(ah, gpioOffset+AR5315_GPIODO, reg);
+	return AH_TRUE;
+}
+
+/*
+ * Once configured for I/O - get input lines
+ */
+uint32_t
+ar5315GpioGet(struct ath_hal *ah, uint32_t gpio)
+{
+	uint32_t gpioOffset = (AR5315_GPIO_BASE - ((uint32_t) ah->ah_sh));
+
+	if (gpio < AR_NUM_GPIO) {
+		uint32_t val = OS_REG_READ(ah, gpioOffset+AR5315_GPIODI);
+		val = ((val & AR5315_GPIOD_MASK) >> gpio) & 0x1;
+		return val;
+	} else  {
+		return 0xffffffff;
+	}
+}
+
+/*
+ * Set the GPIO Interrupt
+ */
+void
+ar5315GpioSetIntr(struct ath_hal *ah, u_int gpio, uint32_t ilevel)
+{
+	uint32_t val;
+	uint32_t gpioOffset = (AR5315_GPIO_BASE - ((uint32_t) ah->ah_sh));
+
+	/* XXX bounds check gpio */
+	val = OS_REG_READ(ah, gpioOffset+AR5315_GPIOINT);
+	val &= ~(AR5315_GPIOINT_M | AR5315_GPIOINTLVL_M);
+	val |= gpio << AR5315_GPIOINT_S;
+	if (ilevel)
+		val |= 2 << AR5315_GPIOINTLVL_S;	/* interrupt on pin high */
+	else
+		val |= 1 << AR5315_GPIOINTLVL_S;	/* interrupt on pin low */
+
+	/* Don't need to change anything for low level interrupt. */
+	OS_REG_WRITE(ah, gpioOffset+AR5315_GPIOINT, val);
+
+	/* Change the interrupt mask. */
+	(void) ar5212SetInterrupts(ah, AH5212(ah)->ah_maskReg | HAL_INT_GPIO);
+}
+
+
+#endif /* AH_SUPPORT_2316 || AH_SUPPORT_2317 */