Upgrade rb532 to .23, provide generic GPIO API to this board

[openwrt/openwrt.git] / target / linux / rb532 / files / include / asm-mips / rc32434 / gpio.h

diff --git a/target/linux/rb532/files/include/asm-mips/rc32434/gpio.h b/target/linux/rb532/files/include/asm-mips/rc32434/gpio.h
index 1638cfeacc57f8fd268e2d40deb1d86051c576fd..393259342d17560a1006bb25cc8316b00b261f34 100644 (file)
--- a/target/linux/rb532/files/include/asm-mips/rc32434/gpio.h
+++ b/target/linux/rb532/files/include/asm-mips/rc32434/gpio.h
@@ -1,39 +1,21 @@
-#ifndef __IDT_GPIO_H__
-#define __IDT_GPIO_H__
-
-/*******************************************************************************
- *
+/*
  * Copyright 2002 Integrated Device Technology, Inc.
- *             All rights reserved.
+ *     All rights reserved.
  *
  * GPIO register definition.
  *
- * File   : $Id: gpio.h,v 1.2 2002/06/06 18:34:04 astichte Exp $
- *
  * Author : ryan.holmQVist@idt.com
  * Date   : 20011005
- * Update :
- *         $Log: gpio.h,v $
- *         Revision 1.2  2002/06/06 18:34:04  astichte
- *         Added XXX_PhysicalAddress and XXX_VirtualAddress
- *     
- *         Revision 1.1  2002/05/29 17:33:22  sysarch
- *         jba File moved from vcode/include/idt/acacia
- *     
- *
- ******************************************************************************/
+ * Copyright (C) 2001, 2002 Ryan Holm <ryan.holmQVist@idt.com>
+ * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
+ */
 
-enum
-{
-       GPIO0_PhysicalAddress   = 0x18050000,
-       GPIO_PhysicalAddress    = GPIO0_PhysicalAddress,        // Default
+#ifndef _RC32434_GPIO_H_
+#define _RC32434_GPIO_H_
 
-       GPIO0_VirtualAddress    = 0xb8050000,
-       GPIO_VirtualAddress     = GPIO0_VirtualAddress,         // Default
-} ;
+#include <linux/types.h>
 
-typedef struct
-{
+struct rb500_gpio_reg {
        u32   gpiofunc;   /* GPIO Function Register
                           * gpiofunc[x]==0 bit = gpio
                           * func[x]==1  bit = altfunc
@@ -53,9 +35,9 @@ typedef struct
                           * cleared in ISR (STICKY bits)
                           */
        u32   gpionmien;  /* GPIO Non-maskable Interrupt Enable Register */
-} volatile * GPIO_t ;
+};
 
-typedef enum
+enum gpio_regs
 {
        GPIO_gpio_v             = 0,            // gpiofunc use pin as GPIO.
        GPIO_alt_v              = 1,            // gpiofunc use pin as alt.
@@ -175,7 +157,58 @@ typedef enum
        GPIO_pcimuintn_m        = GPIO_pin13_m,
                GPIO_pcimuintn_cfg_v    = GPIO_output_v,
 
-} GPIO_DEFS_t;
+};
+
+extern int rb500_gpio_get_value(unsigned gpio);
+extern void rb500_gpio_set_value(unsigned gpio, int value);
+extern int rb500_gpio_direction_input(unsigned gpio);
+extern int rb500_gpio_direction_output(unsigned gpio, int value);
+
+
+/* Wrappers for the arch-neutral GPIO API */
+
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+       /* Not yet implemented */
+       return 0;
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+       /* Not yet implemented */
+}
+
+static inline int gpio_direction_input(unsigned gpio)
+{
+       return rb500_gpio_direction_input(gpio);
+}
+
+static inline int gpio_direction_output(unsigned gpio, int value)
+{
+       return rb500_gpio_direction_output(gpio, value);
+}
+
+static inline int gpio_get_value(unsigned gpio)
+{
+       return rb500_gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+       rb500_gpio_set_value(gpio, value);
+}
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+       return gpio;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+       return irq;
+}
 
-#endif // __IDT_GPIO_H__
+/* For cansleep */
+#include <asm-generic/gpio.h>
 
+#endif /* _RC32434_GPIO_H_ */