[linux-2.6-block.git] / drivers / pinctrl / pinmux.h

/*
 * Internal interface between the core pin control system and the
 * pinmux portions
 *
 * Copyright (C) 2011 ST-Ericsson SA
 * Written on behalf of Linaro for ST-Ericsson
 * Based on bits of regulator core, gpio core and clk core
 *
 * Author: Linus Walleij <linus.walleij@linaro.org>
 *
 * License terms: GNU General Public License (GPL) version 2
 */
#ifdef CONFIG_PINMUX

int pinmux_check_ops(struct pinctrl_dev *pctldev);

int pinmux_validate_map(const struct pinctrl_map *map, int i);

int pinmux_request_gpio(struct pinctrl_dev *pctldev,
			struct pinctrl_gpio_range *range,
			unsigned pin, unsigned gpio);
void pinmux_free_gpio(struct pinctrl_dev *pctldev, unsigned pin,
		      struct pinctrl_gpio_range *range);
int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
			  struct pinctrl_gpio_range *range,
			  unsigned pin, bool input);

int pinmux_map_to_setting(const struct pinctrl_map *map,
			  struct pinctrl_setting *setting);
void pinmux_free_setting(const struct pinctrl_setting *setting);
int pinmux_enable_setting(const struct pinctrl_setting *setting);
void pinmux_disable_setting(const struct pinctrl_setting *setting);

#else

static inline int pinmux_check_ops(struct pinctrl_dev *pctldev)
{
	return 0;
}

static inline int pinmux_validate_map(const struct pinctrl_map *map, int i)
{
	return 0;
}

static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev,
			struct pinctrl_gpio_range *range,
			unsigned pin, unsigned gpio)
{
	return 0;
}

static inline void pinmux_free_gpio(struct pinctrl_dev *pctldev,
				    unsigned pin,
				    struct pinctrl_gpio_range *range)
{
}

static inline int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
					struct pinctrl_gpio_range *range,
					unsigned pin, bool input)
{
	return 0;
}

static inline int pinmux_map_to_setting(const struct pinctrl_map *map,
			  struct pinctrl_setting *setting)
{
	return 0;
}

static inline void pinmux_free_setting(const struct pinctrl_setting *setting)
{
}

static inline int pinmux_enable_setting(const struct pinctrl_setting *setting)
{
	return 0;
}

static inline void pinmux_disable_setting(const struct pinctrl_setting *setting)
{
}

#endif

#if defined(CONFIG_PINMUX) && defined(CONFIG_DEBUG_FS)

void pinmux_show_map(struct seq_file *s, const struct pinctrl_map *map);
void pinmux_show_setting(struct seq_file *s,
			 const struct pinctrl_setting *setting);
void pinmux_init_device_debugfs(struct dentry *devroot,
				struct pinctrl_dev *pctldev);

#else

static inline void pinmux_show_map(struct seq_file *s,
				   const struct pinctrl_map *map)
{
}

static inline void pinmux_show_setting(struct seq_file *s,
				       const struct pinctrl_setting *setting)
{
}

static inline void pinmux_init_device_debugfs(struct dentry *devroot,
					      struct pinctrl_dev *pctldev)
{
}

#endif

#ifdef CONFIG_GENERIC_PINMUX_FUNCTIONS

/**
 * struct function_desc - generic function descriptor
 * @name: name of the function
 * @group_names: array of pin group names
 * @num_group_names: number of pin group names
 * @data: pin controller driver specific data
 */
struct function_desc {
	const char *name;
	const char **group_names;
	int num_group_names;
	void *data;
};

int pinmux_generic_get_function_count(struct pinctrl_dev *pctldev);

const char *
pinmux_generic_get_function_name(struct pinctrl_dev *pctldev,
				 unsigned int selector);

int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
				       unsigned int selector,
				       const char * const **groups,
				       unsigned * const num_groups);

struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev,
						  unsigned int selector);

int pinmux_generic_add_function(struct pinctrl_dev *pctldev,
				const char *name,
				const char **groups,
				unsigned const num_groups,
				void *data);

int pinmux_generic_remove_function(struct pinctrl_dev *pctldev,
				   unsigned int selector);

void pinmux_generic_free_functions(struct pinctrl_dev *pctldev);

#else

static inline void pinmux_generic_free_functions(struct pinctrl_dev *pctldev)
{
}

#endif /* CONFIG_GENERIC_PINMUX_FUNCTIONS */
Commit	Line	Data
2744e8af LW	1	/*
	2	* Internal interface between the core pin control system and the
	3	* pinmux portions
	4	*
	5	* Copyright (C) 2011 ST-Ericsson SA
	6	* Written on behalf of Linaro for ST-Ericsson
	7	* Based on bits of regulator core, gpio core and clk core
	8	*
	9	* Author: Linus Walleij <linus.walleij@linaro.org>
	10	*
	11	* License terms: GNU General Public License (GPL) version 2
	12	*/
	13	#ifdef CONFIG_PINMUX
	14
b9130b77	15	int pinmux_check_ops(struct pinctrl_dev *pctldev);
7ecdb16f	16
3f713b7c	17	int pinmux_validate_map(const struct pinctrl_map *map, int i);
1e2082b5	18
befe5bdf LW	19	int pinmux_request_gpio(struct pinctrl_dev *pctldev,
	20	struct pinctrl_gpio_range *range,
	21	unsigned pin, unsigned gpio);
	22	void pinmux_free_gpio(struct pinctrl_dev *pctldev, unsigned pin,
	23	struct pinctrl_gpio_range *range);
	24	int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
	25	struct pinctrl_gpio_range *range,
	26	unsigned pin, bool input);
7ecdb16f	27
3f713b7c	28	int pinmux_map_to_setting(const struct pinctrl_map *map,
7ecdb16f	29	struct pinctrl_setting *setting);
3f713b7c MY	30	void pinmux_free_setting(const struct pinctrl_setting *setting);
	31	int pinmux_enable_setting(const struct pinctrl_setting *setting);
	32	void pinmux_disable_setting(const struct pinctrl_setting *setting);
7ecdb16f	33
2744e8af LW	34	#else
2744e8af LW	35
b9130b77	36	static inline int pinmux_check_ops(struct pinctrl_dev *pctldev)
2744e8af LW	37	{
	38	return 0;
	39	}
	40
3f713b7c	41	static inline int pinmux_validate_map(const struct pinctrl_map *map, int i)
1e2082b5 SW	42	{
	43	return 0;
	44	}
	45
befe5bdf LW	46	static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev,
	47	struct pinctrl_gpio_range *range,
	48	unsigned pin, unsigned gpio)
	49	{
	50	return 0;
	51	}
	52
	53	static inline void pinmux_free_gpio(struct pinctrl_dev *pctldev,
	54	unsigned pin,
	55	struct pinctrl_gpio_range *range)
	56	{
	57	}
	58
	59	static inline int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
	60	struct pinctrl_gpio_range *range,
	61	unsigned pin, bool input)
	62	{
	63	return 0;
	64	}
	65
3f713b7c	66	static inline int pinmux_map_to_setting(const struct pinctrl_map *map,
7ecdb16f	67	struct pinctrl_setting *setting)
2744e8af LW	68	{
	69	return 0;
	70	}
	71
3f713b7c	72	static inline void pinmux_free_setting(const struct pinctrl_setting *setting)
befe5bdf LW	73	{
	74	}
	75
3f713b7c	76	static inline int pinmux_enable_setting(const struct pinctrl_setting *setting)
befe5bdf	77	{
7ecdb16f	78	return 0;
befe5bdf LW	79	}
befe5bdf LW	80
3f713b7c	81	static inline void pinmux_disable_setting(const struct pinctrl_setting *setting)
befe5bdf LW	82	{
	83	}
	84
c736d73c SW	85	#endif
	86
	87	#if defined(CONFIG_PINMUX) && defined(CONFIG_DEBUG_FS)
	88
3f713b7c	89	void pinmux_show_map(struct seq_file s, const struct pinctrl_map map);
c736d73c	90	void pinmux_show_setting(struct seq_file *s,
3f713b7c	91	const struct pinctrl_setting *setting);
c736d73c SW	92	void pinmux_init_device_debugfs(struct dentry *devroot,
	93	struct pinctrl_dev *pctldev);
	94
	95	#else
	96
1e2082b5	97	static inline void pinmux_show_map(struct seq_file *s,
3f713b7c	98	const struct pinctrl_map *map)
1e2082b5 SW	99	{
	100	}
	101
	102	static inline void pinmux_show_setting(struct seq_file *s,
3f713b7c	103	const struct pinctrl_setting *setting)
03665e0f SW	104	{
	105	}
	106
1e2082b5 SW	107	static inline void pinmux_init_device_debugfs(struct dentry *devroot,
1e2082b5 SW	108	struct pinctrl_dev *pctldev)
2744e8af LW	109	{
	110	}
	111
	112	#endif
a76edc89 TL	113
	114	#ifdef CONFIG_GENERIC_PINMUX_FUNCTIONS
	115
	116	/**
	117	* struct function_desc - generic function descriptor
	118	* @name: name of the function
	119	* @group_names: array of pin group names
	120	* @num_group_names: number of pin group names
	121	* @data: pin controller driver specific data
	122	*/
	123	struct function_desc {
	124	const char *name;
	125	const char **group_names;
	126	int num_group_names;
	127	void *data;
	128	};
	129
	130	int pinmux_generic_get_function_count(struct pinctrl_dev *pctldev);
	131
	132	const char *
	133	pinmux_generic_get_function_name(struct pinctrl_dev *pctldev,
	134	unsigned int selector);
	135
	136	int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
	137	unsigned int selector,
	138	const char * const **groups,
	139	unsigned * const num_groups);
	140
	141	struct function_desc pinmux_generic_get_function(struct pinctrl_dev pctldev,
	142	unsigned int selector);
	143
	144	int pinmux_generic_add_function(struct pinctrl_dev *pctldev,
	145	const char *name,
	146	const char **groups,
	147	unsigned const num_groups,
	148	void *data);
	149
	150	int pinmux_generic_remove_function(struct pinctrl_dev *pctldev,
	151	unsigned int selector);
	152
a76edc89 TL	153	void pinmux_generic_free_functions(struct pinctrl_dev *pctldev);
	154
	155	#else
	156
	157	static inline void pinmux_generic_free_functions(struct pinctrl_dev *pctldev)
	158	{
	159	}
	160
	161	#endif /* CONFIG_GENERIC_PINMUX_FUNCTIONS */