[deliverable/linux.git] / include / linux / mfd / wm8994 / core.h

/*
 * include/linux/mfd/wm8994/core.h -- Core interface for WM8994
 *
 * Copyright 2009 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.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.
 *
 */

#ifndef __MFD_WM8994_CORE_H__
#define __MFD_WM8994_CORE_H__

#include <linux/interrupt.h>

enum wm8994_type {
	WM8994 = 0,
	WM8958 = 1,
};

struct regulator_dev;
struct regulator_bulk_data;

#define WM8994_NUM_GPIO_REGS 11
#define WM8994_NUM_LDO_REGS   2
#define WM8994_NUM_IRQ_REGS   2

#define WM8994_IRQ_TEMP_SHUT		0
#define WM8994_IRQ_MIC1_DET		1
#define WM8994_IRQ_MIC1_SHRT		2
#define WM8994_IRQ_MIC2_DET		3
#define WM8994_IRQ_MIC2_SHRT		4
#define WM8994_IRQ_FLL1_LOCK		5
#define WM8994_IRQ_FLL2_LOCK		6
#define WM8994_IRQ_SRC1_LOCK		7
#define WM8994_IRQ_SRC2_LOCK		8
#define WM8994_IRQ_AIF1DRC1_SIG_DET	9
#define WM8994_IRQ_AIF1DRC2_SIG_DET	10
#define WM8994_IRQ_AIF2DRC_SIG_DET	11
#define WM8994_IRQ_FIFOS_ERR		12
#define WM8994_IRQ_WSEQ_DONE		13
#define WM8994_IRQ_DCS_DONE		14
#define WM8994_IRQ_TEMP_WARN		15

/* GPIOs in the chip are numbered from 1-11 */
#define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN)

struct wm8994 {
	struct mutex io_lock;
	struct mutex irq_lock;

	enum wm8994_type type;

	struct device *dev;
	int (*read_dev)(struct wm8994 *wm8994, unsigned short reg,
			int bytes, void *dest);
	int (*write_dev)(struct wm8994 *wm8994, unsigned short reg,
			 int bytes, void *src);

	void *control_data;

	int gpio_base;
	int irq_base;

	int irq;
	u16 irq_masks_cur[WM8994_NUM_IRQ_REGS];
	u16 irq_masks_cache[WM8994_NUM_IRQ_REGS];

	/* Used over suspend/resume */
	bool suspended;
	u16 ldo_regs[WM8994_NUM_LDO_REGS];
	u16 gpio_regs[WM8994_NUM_GPIO_REGS];

	struct regulator_dev *dbvdd;
	int num_supplies;
	struct regulator_bulk_data *supplies;
};

/* Device I/O API */
int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg);
int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
		 unsigned short val);
int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
		    unsigned short mask, unsigned short val);
int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
		     int count, u16 *buf);


/* Helper to save on boilerplate */
static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq,
				     irq_handler_t handler, const char *name,
				     void *data)
{
	if (!wm8994->irq_base)
		return -EINVAL;
	return request_threaded_irq(wm8994->irq_base + irq, NULL, handler,
				    IRQF_TRIGGER_RISING, name,
				    data);
}
static inline void wm8994_free_irq(struct wm8994 *wm8994, int irq, void *data)
{
	if (!wm8994->irq_base)
		return;
	free_irq(wm8994->irq_base + irq, data);
}

int wm8994_irq_init(struct wm8994 *wm8994);
void wm8994_irq_exit(struct wm8994 *wm8994);

#endif
Commit	Line	Data
9e501086 MB	1	/*
	2	* include/linux/mfd/wm8994/core.h -- Core interface for WM8994
	3	*
	4	* Copyright 2009 Wolfson Microelectronics PLC.
	5	*
	6	* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
	12	*
	13	*/
	14
	15	#ifndef __MFD_WM8994_CORE_H__
	16	#define __MFD_WM8994_CORE_H__
	17
c9fbf7e0 MB	18	#include <linux/interrupt.h>
c9fbf7e0 MB	19
559e0df6 MB	20	enum wm8994_type {
	21	WM8994 = 0,
	22	WM8958 = 1,
	23	};
	24
9e501086 MB	25	struct regulator_dev;
	26	struct regulator_bulk_data;
	27
	28	#define WM8994_NUM_GPIO_REGS 11
c9fbf7e0 MB	29	#define WM8994_NUM_LDO_REGS 2
	30	#define WM8994_NUM_IRQ_REGS 2
	31
	32	#define WM8994_IRQ_TEMP_SHUT 0
	33	#define WM8994_IRQ_MIC1_DET 1
	34	#define WM8994_IRQ_MIC1_SHRT 2
	35	#define WM8994_IRQ_MIC2_DET 3
	36	#define WM8994_IRQ_MIC2_SHRT 4
	37	#define WM8994_IRQ_FLL1_LOCK 5
	38	#define WM8994_IRQ_FLL2_LOCK 6
	39	#define WM8994_IRQ_SRC1_LOCK 7
	40	#define WM8994_IRQ_SRC2_LOCK 8
	41	#define WM8994_IRQ_AIF1DRC1_SIG_DET 9
	42	#define WM8994_IRQ_AIF1DRC2_SIG_DET 10
	43	#define WM8994_IRQ_AIF2DRC_SIG_DET 11
	44	#define WM8994_IRQ_FIFOS_ERR 12
	45	#define WM8994_IRQ_WSEQ_DONE 13
	46	#define WM8994_IRQ_DCS_DONE 14
	47	#define WM8994_IRQ_TEMP_WARN 15
	48
	49	/* GPIOs in the chip are numbered from 1-11 */
	50	#define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN)
9e501086 MB	51
	52	struct wm8994 {
	53	struct mutex io_lock;
c9fbf7e0	54	struct mutex irq_lock;
9e501086	55
559e0df6 MB	56	enum wm8994_type type;
559e0df6 MB	57
9e501086 MB	58	struct device *dev;
	59	int (read_dev)(struct wm8994 wm8994, unsigned short reg,
	60	int bytes, void *dest);
	61	int (write_dev)(struct wm8994 wm8994, unsigned short reg,
	62	int bytes, void *src);
	63
	64	void *control_data;
	65
	66	int gpio_base;
c9fbf7e0 MB	67	int irq_base;
	68
	69	int irq;
	70	u16 irq_masks_cur[WM8994_NUM_IRQ_REGS];
	71	u16 irq_masks_cache[WM8994_NUM_IRQ_REGS];
9e501086 MB	72
9e501086 MB	73	/* Used over suspend/resume */
77bd70e9	74	bool suspended;
9e501086 MB	75	u16 ldo_regs[WM8994_NUM_LDO_REGS];
	76	u16 gpio_regs[WM8994_NUM_GPIO_REGS];
	77
	78	struct regulator_dev *dbvdd;
559e0df6	79	int num_supplies;
9e501086 MB	80	struct regulator_bulk_data *supplies;
	81	};
	82
	83	/* Device I/O API */
	84	int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg);
	85	int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
	86	unsigned short val);
	87	int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
	88	unsigned short mask, unsigned short val);
	89	int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
	90	int count, u16 *buf);
	91
c9fbf7e0 MB	92
	93	/* Helper to save on boilerplate */
	94	static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq,
	95	irq_handler_t handler, const char *name,
	96	void *data)
	97	{
	98	if (!wm8994->irq_base)
	99	return -EINVAL;
	100	return request_threaded_irq(wm8994->irq_base + irq, NULL, handler,
	101	IRQF_TRIGGER_RISING, name,
	102	data);
	103	}
	104	static inline void wm8994_free_irq(struct wm8994 wm8994, int irq, void data)
	105	{
	106	if (!wm8994->irq_base)
	107	return;
	108	free_irq(wm8994->irq_base + irq, data);
	109	}
	110
	111	int wm8994_irq_init(struct wm8994 *wm8994);
	112	void wm8994_irq_exit(struct wm8994 *wm8994);
	113
9e501086	114	#endif