sh: asm/gpio.h needs linux/kernel.h for might_sleep()/WARN_ON().

[linux-2.6-omap-h63xx.git] / arch / sh / include / asm / gpio.h

diff --git a/arch/sh/include/asm/gpio.h b/arch/sh/include/asm/gpio.h
index cf32bd2df88187d7efa0a63684220a72c38e80c8..90673658eb14c19e5506ebcda7c3024084fbd036 100644 (file)
--- a/arch/sh/include/asm/gpio.h
+++ b/arch/sh/include/asm/gpio.h
@@ -1,9 +1,9 @@
 /*
  *  include/asm-sh/gpio.h
  *
- *  Copyright (C) 2007 Markus Brunner, Mark Jonas
+ * Generic GPIO API and pinmux table support for SuperH.
  *
- *  Addresses for the Pin Function Controller
+ * Copyright (c) 2008 Magnus Damm
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
@@ -12,8 +12,111 @@
 #ifndef __ASM_SH_GPIO_H
 #define __ASM_SH_GPIO_H
 
+#include <linux/kernel.h>
+#include <linux/errno.h>
+
 #if defined(CONFIG_CPU_SH3)
 #include <cpu/gpio.h>
 #endif
 
+typedef unsigned short pinmux_enum_t;
+typedef unsigned char pinmux_flag_t;
+
+#define PINMUX_TYPE_NONE            0
+#define PINMUX_TYPE_FUNCTION        1
+#define PINMUX_TYPE_GPIO            2
+#define PINMUX_TYPE_OUTPUT          3
+#define PINMUX_TYPE_INPUT           4
+#define PINMUX_TYPE_INPUT_PULLUP    5
+#define PINMUX_TYPE_INPUT_PULLDOWN  6
+
+#define PINMUX_FLAG_TYPE            (0x7)
+#define PINMUX_FLAG_WANT_PULLUP     (1 << 3)
+#define PINMUX_FLAG_WANT_PULLDOWN   (1 << 4)
+
+struct pinmux_gpio {
+       pinmux_enum_t enum_id;
+       pinmux_flag_t flags;
+};
+
+#define PINMUX_GPIO(gpio, data_or_mark) [gpio] = { data_or_mark }
+#define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0
+
+struct pinmux_cfg_reg {
+       unsigned long reg, reg_width, field_width;
+       unsigned long *cnt;
+       pinmux_enum_t *enum_ids;
+};
+
+#define PINMUX_CFG_REG(name, r, r_width, f_width) \
+       .reg = r, .reg_width = r_width, .field_width = f_width,         \
+       .cnt = (unsigned long [r_width / f_width]) {}, \
+       .enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) \
+
+struct pinmux_data_reg {
+       unsigned long reg, reg_width;
+       pinmux_enum_t *enum_ids;
+};
+
+#define PINMUX_DATA_REG(name, r, r_width) \
+       .reg = r, .reg_width = r_width, \
+       .enum_ids = (pinmux_enum_t [r_width]) \
+
+struct pinmux_range {
+       pinmux_enum_t begin;
+       pinmux_enum_t end;
+       pinmux_enum_t force;
+};
+
+struct pinmux_info {
+       char *name;
+       pinmux_enum_t reserved_id;
+       struct pinmux_range data;
+       struct pinmux_range input;
+       struct pinmux_range input_pd;
+       struct pinmux_range input_pu;
+       struct pinmux_range output;
+       struct pinmux_range mark;
+       struct pinmux_range function;
+
+       unsigned first_gpio, last_gpio;
+
+       struct pinmux_gpio *gpios;
+       struct pinmux_cfg_reg *cfg_regs;
+       struct pinmux_data_reg *data_regs;
+
+       pinmux_enum_t *gpio_data;
+       unsigned int gpio_data_size;
+
+       unsigned long *gpio_in_use;
+};
+
+int register_pinmux(struct pinmux_info *pip);
+
+int __gpio_request(unsigned gpio);
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+       return __gpio_request(gpio);
+}
+void gpio_free(unsigned gpio);
+int gpio_direction_input(unsigned gpio);
+int gpio_direction_output(unsigned gpio, int value);
+int gpio_get_value(unsigned gpio);
+void gpio_set_value(unsigned gpio, int value);
+
+/* IRQ modes are unspported */
+static inline int gpio_to_irq(unsigned gpio)
+{
+       WARN_ON(1);
+       return -EINVAL;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+       WARN_ON(1);
+       return -EINVAL;
+}
+
+#include <asm-generic/gpio.h>
+
 #endif /* __ASM_SH_GPIO_H */