1 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h
new file mode 100644
index 0000000..2c538d8
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/gpio.h
@@ -0,0 +1,65 @@
+/*
+ * arch/arm/mach-pxa/include/mach/gpio.h
+ *
+ * PXA GPIO wrappers for arch-neutral GPIO calls
+ *
+ * Written by Philipp Zabel <philipp.zabel@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef __ASM_ARCH_PXA_GPIO_H
+#define __ASM_ARCH_PXA_GPIO_H
+
+#include <mach/pxa-regs.h>
+#include <asm/irq.h>
+#include <mach/hardware.h>
+
+#include <asm-generic/gpio.h>
+
+
+/* NOTE: some PXAs have fewer on-chip GPIOs (like PXA255, with 85).
+ * Those cases currently cause holes in the GPIO number space.
+ */
+#define NR_BUILTIN_GPIO 128
+
+static inline int gpio_get_value(unsigned gpio)
+{
+	if (__builtin_constant_p(gpio) && (gpio < NR_BUILTIN_GPIO))
+		return GPLR(gpio) & GPIO_bit(gpio);
+	else
+		return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+	if (__builtin_constant_p(gpio) && (gpio < NR_BUILTIN_GPIO)) {
+		if (value)
+			GPSR(gpio) = GPIO_bit(gpio);
+		else
+			GPCR(gpio) = GPIO_bit(gpio);
+	} else {
+		__gpio_set_value(gpio, value);
+	}
+}
+
+#define gpio_cansleep __gpio_cansleep
+
+#define gpio_to_irq(gpio)	IRQ_GPIO(gpio)
+#define irq_to_gpio(irq)	IRQ_TO_GPIO(irq)
+
+
+#endif