2 * include/linux/mfd/wm8994/core.h -- Core interface for WM8994
4 * Copyright 2009 Wolfson Microelectronics PLC.
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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.
15 #ifndef __MFD_WM8994_CORE_H__
16 #define __MFD_WM8994_CORE_H__
18 #include <linux/interrupt.h>
21 struct regulator_bulk_data;
23 #define WM8994_NUM_GPIO_REGS 11
24 #define WM8994_NUM_LDO_REGS 2
25 #define WM8994_NUM_IRQ_REGS 2
27 #define WM8994_IRQ_TEMP_SHUT 0
28 #define WM8994_IRQ_MIC1_DET 1
29 #define WM8994_IRQ_MIC1_SHRT 2
30 #define WM8994_IRQ_MIC2_DET 3
31 #define WM8994_IRQ_MIC2_SHRT 4
32 #define WM8994_IRQ_FLL1_LOCK 5
33 #define WM8994_IRQ_FLL2_LOCK 6
34 #define WM8994_IRQ_SRC1_LOCK 7
35 #define WM8994_IRQ_SRC2_LOCK 8
36 #define WM8994_IRQ_AIF1DRC1_SIG_DET 9
37 #define WM8994_IRQ_AIF1DRC2_SIG_DET 10
38 #define WM8994_IRQ_AIF2DRC_SIG_DET 11
39 #define WM8994_IRQ_FIFOS_ERR 12
40 #define WM8994_IRQ_WSEQ_DONE 13
41 #define WM8994_IRQ_DCS_DONE 14
42 #define WM8994_IRQ_TEMP_WARN 15
44 /* GPIOs in the chip are numbered from 1-11 */
45 #define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN)
49 struct mutex irq_lock;
52 int (*read_dev)(struct wm8994 *wm8994, unsigned short reg,
53 int bytes, void *dest);
54 int (*write_dev)(struct wm8994 *wm8994, unsigned short reg,
55 int bytes, void *src);
63 u16 irq_masks_cur[WM8994_NUM_IRQ_REGS];
64 u16 irq_masks_cache[WM8994_NUM_IRQ_REGS];
66 /* Used over suspend/resume */
67 u16 ldo_regs[WM8994_NUM_LDO_REGS];
68 u16 gpio_regs[WM8994_NUM_GPIO_REGS];
70 struct regulator_dev *dbvdd;
71 struct regulator_bulk_data *supplies;
75 int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg);
76 int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
78 int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
79 unsigned short mask, unsigned short val);
80 int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
84 /* Helper to save on boilerplate */
85 static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq,
86 irq_handler_t handler, const char *name,
89 if (!wm8994->irq_base)
91 return request_threaded_irq(wm8994->irq_base + irq, NULL, handler,
92 IRQF_TRIGGER_RISING, name,
95 static inline void wm8994_free_irq(struct wm8994 *wm8994, int irq, void *data)
97 if (!wm8994->irq_base)
99 free_irq(wm8994->irq_base + irq, data);
102 int wm8994_irq_init(struct wm8994 *wm8994);
103 void wm8994_irq_exit(struct wm8994 *wm8994);