2 * include/asm-sh/gpio.h
4 * Generic GPIO API and pinmux table support for SuperH.
6 * Copyright (c) 2008 Magnus Damm
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
12 #ifndef __ASM_SH_GPIO_H
13 #define __ASM_SH_GPIO_H
15 #include <linux/kernel.h>
16 #include <linux/errno.h>
18 #if defined(CONFIG_CPU_SH3)
22 #define ARCH_NR_GPIOS 512
23 #include <asm-generic/gpio.h>
27 static inline int gpio_get_value(unsigned gpio)
29 return __gpio_get_value(gpio);
32 static inline void gpio_set_value(unsigned gpio, int value)
34 __gpio_set_value(gpio, value);
37 static inline int gpio_cansleep(unsigned gpio)
39 return __gpio_cansleep(gpio);
42 static inline int gpio_to_irq(unsigned gpio)
48 static inline int irq_to_gpio(unsigned int irq)
54 #endif /* CONFIG_GPIOLIB */
56 typedef unsigned short pinmux_enum_t;
57 typedef unsigned short pinmux_flag_t;
59 #define PINMUX_TYPE_NONE 0
60 #define PINMUX_TYPE_FUNCTION 1
61 #define PINMUX_TYPE_GPIO 2
62 #define PINMUX_TYPE_OUTPUT 3
63 #define PINMUX_TYPE_INPUT 4
64 #define PINMUX_TYPE_INPUT_PULLUP 5
65 #define PINMUX_TYPE_INPUT_PULLDOWN 6
67 #define PINMUX_FLAG_TYPE (0x7)
68 #define PINMUX_FLAG_WANT_PULLUP (1 << 3)
69 #define PINMUX_FLAG_WANT_PULLDOWN (1 << 4)
71 #define PINMUX_FLAG_DBIT_SHIFT 5
72 #define PINMUX_FLAG_DBIT (0x1f << PINMUX_FLAG_DBIT_SHIFT)
73 #define PINMUX_FLAG_DREG_SHIFT 10
74 #define PINMUX_FLAG_DREG (0x3f << PINMUX_FLAG_DREG_SHIFT)
77 pinmux_enum_t enum_id;
81 #define PINMUX_GPIO(gpio, data_or_mark) [gpio] = { data_or_mark }
82 #define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0
84 struct pinmux_cfg_reg {
85 unsigned long reg, reg_width, field_width;
87 pinmux_enum_t *enum_ids;
90 #define PINMUX_CFG_REG(name, r, r_width, f_width) \
91 .reg = r, .reg_width = r_width, .field_width = f_width, \
92 .cnt = (unsigned long [r_width / f_width]) {}, \
93 .enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) \
95 struct pinmux_data_reg {
96 unsigned long reg, reg_width, reg_shadow;
97 pinmux_enum_t *enum_ids;
100 #define PINMUX_DATA_REG(name, r, r_width) \
101 .reg = r, .reg_width = r_width, \
102 .enum_ids = (pinmux_enum_t [r_width]) \
104 struct pinmux_range {
112 pinmux_enum_t reserved_id;
113 struct pinmux_range data;
114 struct pinmux_range input;
115 struct pinmux_range input_pd;
116 struct pinmux_range input_pu;
117 struct pinmux_range output;
118 struct pinmux_range mark;
119 struct pinmux_range function;
121 unsigned first_gpio, last_gpio;
123 struct pinmux_gpio *gpios;
124 struct pinmux_cfg_reg *cfg_regs;
125 struct pinmux_data_reg *data_regs;
127 pinmux_enum_t *gpio_data;
128 unsigned int gpio_data_size;
130 unsigned long *gpio_in_use;
131 struct gpio_chip chip;
134 int register_pinmux(struct pinmux_info *pip);
136 #endif /* __ASM_SH_GPIO_H */