c9fbf7e070
The WM8994 has an interrupt controller which supports interrupts for both CODEC and GPIO portions of the chip. Support this using genirq, while allowing for systems that do not have an interrupt hooked up. Wrapper functions are provided for the IRQ request and free to simplify the code in consumer drivers when handling cases where IRQs are not set up. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
99 lines
2.7 KiB
C
99 lines
2.7 KiB
C
/*
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* include/linux/mfd/wm8994/pdata.h -- Platform data for WM8994
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*
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* Copyright 2009 Wolfson Microelectronics PLC.
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#ifndef __MFD_WM8994_PDATA_H__
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#define __MFD_WM8994_PDATA_H__
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#define WM8994_NUM_LDO 2
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#define WM8994_NUM_GPIO 11
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struct wm8994_ldo_pdata {
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/** GPIOs to enable regulator, 0 or less if not available */
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int enable;
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const char *supply;
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struct regulator_init_data *init_data;
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};
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#define WM8994_CONFIGURE_GPIO 0x8000
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#define WM8994_DRC_REGS 5
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#define WM8994_EQ_REGS 19
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/**
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* DRC configurations are specified with a label and a set of register
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* values to write (the enable bits will be ignored). At runtime an
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* enumerated control will be presented for each DRC block allowing
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* the user to choose the configration to use.
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*
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* Configurations may be generated by hand or by using the DRC control
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* panel provided by the WISCE - see http://www.wolfsonmicro.com/wisce/
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* for details.
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*/
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struct wm8994_drc_cfg {
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const char *name;
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u16 regs[WM8994_DRC_REGS];
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};
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/**
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* ReTune Mobile configurations are specified with a label, sample
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* rate and set of values to write (the enable bits will be ignored).
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*
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* Configurations are expected to be generated using the ReTune Mobile
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* control panel in WISCE - see http://www.wolfsonmicro.com/wisce/
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*/
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struct wm8994_retune_mobile_cfg {
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const char *name;
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unsigned int rate;
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u16 regs[WM8994_EQ_REGS];
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};
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struct wm8994_pdata {
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int gpio_base;
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/**
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* Default values for GPIOs if non-zero, WM8994_CONFIGURE_GPIO
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* can be used for all zero values.
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*/
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int gpio_defaults[WM8994_NUM_GPIO];
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struct wm8994_ldo_pdata ldo[WM8994_NUM_LDO];
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int irq_base; /** Base IRQ number for WM8994, required for IRQs */
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int num_drc_cfgs;
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struct wm8994_drc_cfg *drc_cfgs;
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int num_retune_mobile_cfgs;
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struct wm8994_retune_mobile_cfg *retune_mobile_cfgs;
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/* LINEOUT can be differential or single ended */
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unsigned int lineout1_diff:1;
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unsigned int lineout2_diff:1;
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/* Common mode feedback */
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unsigned int lineout1fb:1;
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unsigned int lineout2fb:1;
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/* Microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
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unsigned int micbias1_lvl:1;
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unsigned int micbias2_lvl:1;
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/* Jack detect threashold levels, see datasheet for values */
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unsigned int jd_scthr:2;
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unsigned int jd_thr:2;
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};
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#endif
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