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@ -0,0 +1,952 @@
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/*
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* soc-ops.c -- Generic ASoC operations
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*
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* Copyright 2005 Wolfson Microelectronics PLC.
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* Copyright 2005 Openedhand Ltd.
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* Copyright (C) 2010 Slimlogic Ltd.
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* Copyright (C) 2010 Texas Instruments Inc.
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*
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* Author: Liam Girdwood <lrg@slimlogic.co.uk>
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* with code, comments and ideas from :-
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* Richard Purdie <richard@openedhand.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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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/bitops.h>
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#include <linux/ctype.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dpcm.h>
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#include <sound/initval.h>
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/**
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* snd_soc_info_enum_double - enumerated double mixer info callback
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* @kcontrol: mixer control
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* @uinfo: control element information
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*
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* Callback to provide information about a double enumerated
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* mixer control.
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*
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* Returns 0 for success.
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*/
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int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
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return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2,
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e->items, e->texts);
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}
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EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
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/**
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* snd_soc_get_enum_double - enumerated double mixer get callback
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* @kcontrol: mixer control
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* @ucontrol: control element information
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*
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* Callback to get the value of a double enumerated mixer.
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*
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* Returns 0 for success.
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*/
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int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
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struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
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unsigned int val, item;
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unsigned int reg_val;
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int ret;
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ret = snd_soc_component_read(component, e->reg, ®_val);
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if (ret)
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return ret;
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val = (reg_val >> e->shift_l) & e->mask;
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item = snd_soc_enum_val_to_item(e, val);
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ucontrol->value.enumerated.item[0] = item;
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if (e->shift_l != e->shift_r) {
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val = (reg_val >> e->shift_l) & e->mask;
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item = snd_soc_enum_val_to_item(e, val);
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ucontrol->value.enumerated.item[1] = item;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
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/**
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* snd_soc_put_enum_double - enumerated double mixer put callback
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* @kcontrol: mixer control
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* @ucontrol: control element information
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*
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* Callback to set the value of a double enumerated mixer.
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*
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* Returns 0 for success.
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*/
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int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
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struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
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unsigned int *item = ucontrol->value.enumerated.item;
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unsigned int val;
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unsigned int mask;
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if (item[0] >= e->items)
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return -EINVAL;
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val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
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mask = e->mask << e->shift_l;
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if (e->shift_l != e->shift_r) {
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if (item[1] >= e->items)
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return -EINVAL;
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val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r;
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mask |= e->mask << e->shift_r;
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}
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return snd_soc_component_update_bits(component, e->reg, mask, val);
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}
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EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
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/**
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* snd_soc_read_signed - Read a codec register and interprete as signed value
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* @component: component
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* @reg: Register to read
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* @mask: Mask to use after shifting the register value
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* @shift: Right shift of register value
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* @sign_bit: Bit that describes if a number is negative or not.
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* @signed_val: Pointer to where the read value should be stored
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*
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* This functions reads a codec register. The register value is shifted right
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* by 'shift' bits and masked with the given 'mask'. Afterwards it translates
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* the given registervalue into a signed integer if sign_bit is non-zero.
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*
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* Returns 0 on sucess, otherwise an error value
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*/
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static int snd_soc_read_signed(struct snd_soc_component *component,
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unsigned int reg, unsigned int mask, unsigned int shift,
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unsigned int sign_bit, int *signed_val)
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{
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int ret;
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unsigned int val;
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ret = snd_soc_component_read(component, reg, &val);
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if (ret < 0)
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return ret;
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val = (val >> shift) & mask;
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if (!sign_bit) {
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*signed_val = val;
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return 0;
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}
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/* non-negative number */
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if (!(val & BIT(sign_bit))) {
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*signed_val = val;
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return 0;
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}
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ret = val;
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/*
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* The register most probably does not contain a full-sized int.
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* Instead we have an arbitrary number of bits in a signed
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* representation which has to be translated into a full-sized int.
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* This is done by filling up all bits above the sign-bit.
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*/
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ret |= ~((int)(BIT(sign_bit) - 1));
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*signed_val = ret;
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return 0;
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}
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/**
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* snd_soc_info_volsw - single mixer info callback
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* @kcontrol: mixer control
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* @uinfo: control element information
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*
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* Callback to provide information about a single mixer control, or a double
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* mixer control that spans 2 registers.
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*
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* Returns 0 for success.
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*/
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int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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int platform_max;
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if (!mc->platform_max)
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mc->platform_max = mc->max;
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platform_max = mc->platform_max;
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if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
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uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
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else
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = platform_max - mc->min;
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return 0;
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}
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EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
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/**
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* snd_soc_get_volsw - single mixer get callback
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* @kcontrol: mixer control
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* @ucontrol: control element information
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*
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* Callback to get the value of a single mixer control, or a double mixer
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* control that spans 2 registers.
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*
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* Returns 0 for success.
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*/
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int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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unsigned int reg = mc->reg;
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unsigned int reg2 = mc->rreg;
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unsigned int shift = mc->shift;
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unsigned int rshift = mc->rshift;
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int max = mc->max;
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int min = mc->min;
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int sign_bit = mc->sign_bit;
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unsigned int mask = (1 << fls(max)) - 1;
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unsigned int invert = mc->invert;
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int val;
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int ret;
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if (sign_bit)
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mask = BIT(sign_bit + 1) - 1;
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ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val);
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if (ret)
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return ret;
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ucontrol->value.integer.value[0] = val - min;
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if (invert)
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ucontrol->value.integer.value[0] =
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max - ucontrol->value.integer.value[0];
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if (snd_soc_volsw_is_stereo(mc)) {
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if (reg == reg2)
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ret = snd_soc_read_signed(component, reg, mask, rshift,
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sign_bit, &val);
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else
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ret = snd_soc_read_signed(component, reg2, mask, shift,
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sign_bit, &val);
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if (ret)
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return ret;
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ucontrol->value.integer.value[1] = val - min;
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if (invert)
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ucontrol->value.integer.value[1] =
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max - ucontrol->value.integer.value[1];
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
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/**
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* snd_soc_put_volsw - single mixer put callback
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* @kcontrol: mixer control
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* @ucontrol: control element information
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*
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* Callback to set the value of a single mixer control, or a double mixer
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* control that spans 2 registers.
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*
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* Returns 0 for success.
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*/
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int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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unsigned int reg = mc->reg;
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unsigned int reg2 = mc->rreg;
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unsigned int shift = mc->shift;
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unsigned int rshift = mc->rshift;
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int max = mc->max;
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int min = mc->min;
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unsigned int sign_bit = mc->sign_bit;
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unsigned int mask = (1 << fls(max)) - 1;
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unsigned int invert = mc->invert;
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int err;
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bool type_2r = false;
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unsigned int val2 = 0;
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unsigned int val, val_mask;
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if (sign_bit)
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mask = BIT(sign_bit + 1) - 1;
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val = ((ucontrol->value.integer.value[0] + min) & mask);
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if (invert)
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val = max - val;
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val_mask = mask << shift;
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val = val << shift;
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if (snd_soc_volsw_is_stereo(mc)) {
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val2 = ((ucontrol->value.integer.value[1] + min) & mask);
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if (invert)
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val2 = max - val2;
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if (reg == reg2) {
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val_mask |= mask << rshift;
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val |= val2 << rshift;
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} else {
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val2 = val2 << shift;
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type_2r = true;
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}
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}
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err = snd_soc_component_update_bits(component, reg, val_mask, val);
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if (err < 0)
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return err;
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if (type_2r)
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err = snd_soc_component_update_bits(component, reg2, val_mask,
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val2);
|
|
|
|
|
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_get_volsw_sx - single mixer get callback
|
|
|
|
|
* @kcontrol: mixer control
|
|
|
|
|
* @ucontrol: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback to get the value of a single mixer control, or a double mixer
|
|
|
|
|
* control that spans 2 registers.
|
|
|
|
|
*
|
|
|
|
|
* Returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_mixer_control *mc =
|
|
|
|
|
(struct soc_mixer_control *)kcontrol->private_value;
|
|
|
|
|
unsigned int reg = mc->reg;
|
|
|
|
|
unsigned int reg2 = mc->rreg;
|
|
|
|
|
unsigned int shift = mc->shift;
|
|
|
|
|
unsigned int rshift = mc->rshift;
|
|
|
|
|
int max = mc->max;
|
|
|
|
|
int min = mc->min;
|
|
|
|
|
int mask = (1 << (fls(min + max) - 1)) - 1;
|
|
|
|
|
unsigned int val;
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_component_read(component, reg, &val);
|
|
|
|
|
if (ret < 0)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask;
|
|
|
|
|
|
|
|
|
|
if (snd_soc_volsw_is_stereo(mc)) {
|
|
|
|
|
ret = snd_soc_component_read(component, reg2, &val);
|
|
|
|
|
if (ret < 0)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
val = ((val >> rshift) - min) & mask;
|
|
|
|
|
ucontrol->value.integer.value[1] = val;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_put_volsw_sx - double mixer set callback
|
|
|
|
|
* @kcontrol: mixer control
|
|
|
|
|
* @uinfo: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback to set the value of a double mixer control that spans 2 registers.
|
|
|
|
|
*
|
|
|
|
|
* Returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_mixer_control *mc =
|
|
|
|
|
(struct soc_mixer_control *)kcontrol->private_value;
|
|
|
|
|
|
|
|
|
|
unsigned int reg = mc->reg;
|
|
|
|
|
unsigned int reg2 = mc->rreg;
|
|
|
|
|
unsigned int shift = mc->shift;
|
|
|
|
|
unsigned int rshift = mc->rshift;
|
|
|
|
|
int max = mc->max;
|
|
|
|
|
int min = mc->min;
|
|
|
|
|
int mask = (1 << (fls(min + max) - 1)) - 1;
|
|
|
|
|
int err = 0;
|
|
|
|
|
unsigned int val, val_mask, val2 = 0;
|
|
|
|
|
|
|
|
|
|
val_mask = mask << shift;
|
|
|
|
|
val = (ucontrol->value.integer.value[0] + min) & mask;
|
|
|
|
|
val = val << shift;
|
|
|
|
|
|
|
|
|
|
err = snd_soc_component_update_bits(component, reg, val_mask, val);
|
|
|
|
|
if (err < 0)
|
|
|
|
|
return err;
|
|
|
|
|
|
|
|
|
|
if (snd_soc_volsw_is_stereo(mc)) {
|
|
|
|
|
val_mask = mask << rshift;
|
|
|
|
|
val2 = (ucontrol->value.integer.value[1] + min) & mask;
|
|
|
|
|
val2 = val2 << rshift;
|
|
|
|
|
|
|
|
|
|
err = snd_soc_component_update_bits(component, reg2, val_mask,
|
|
|
|
|
val2);
|
|
|
|
|
}
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_info_volsw_range - single mixer info callback with range.
|
|
|
|
|
* @kcontrol: mixer control
|
|
|
|
|
* @uinfo: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback to provide information, within a range, about a single
|
|
|
|
|
* mixer control.
|
|
|
|
|
*
|
|
|
|
|
* returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_info *uinfo)
|
|
|
|
|
{
|
|
|
|
|
struct soc_mixer_control *mc =
|
|
|
|
|
(struct soc_mixer_control *)kcontrol->private_value;
|
|
|
|
|
int platform_max;
|
|
|
|
|
int min = mc->min;
|
|
|
|
|
|
|
|
|
|
if (!mc->platform_max)
|
|
|
|
|
mc->platform_max = mc->max;
|
|
|
|
|
platform_max = mc->platform_max;
|
|
|
|
|
|
|
|
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
|
|
|
uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
|
|
|
|
|
uinfo->value.integer.min = 0;
|
|
|
|
|
uinfo->value.integer.max = platform_max - min;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_put_volsw_range - single mixer put value callback with range.
|
|
|
|
|
* @kcontrol: mixer control
|
|
|
|
|
* @ucontrol: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback to set the value, within a range, for a single mixer control.
|
|
|
|
|
*
|
|
|
|
|
* Returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct soc_mixer_control *mc =
|
|
|
|
|
(struct soc_mixer_control *)kcontrol->private_value;
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
unsigned int reg = mc->reg;
|
|
|
|
|
unsigned int rreg = mc->rreg;
|
|
|
|
|
unsigned int shift = mc->shift;
|
|
|
|
|
int min = mc->min;
|
|
|
|
|
int max = mc->max;
|
|
|
|
|
unsigned int mask = (1 << fls(max)) - 1;
|
|
|
|
|
unsigned int invert = mc->invert;
|
|
|
|
|
unsigned int val, val_mask;
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
|
|
if (invert)
|
|
|
|
|
val = (max - ucontrol->value.integer.value[0]) & mask;
|
|
|
|
|
else
|
|
|
|
|
val = ((ucontrol->value.integer.value[0] + min) & mask);
|
|
|
|
|
val_mask = mask << shift;
|
|
|
|
|
val = val << shift;
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_component_update_bits(component, reg, val_mask, val);
|
|
|
|
|
if (ret < 0)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
if (snd_soc_volsw_is_stereo(mc)) {
|
|
|
|
|
if (invert)
|
|
|
|
|
val = (max - ucontrol->value.integer.value[1]) & mask;
|
|
|
|
|
else
|
|
|
|
|
val = ((ucontrol->value.integer.value[1] + min) & mask);
|
|
|
|
|
val_mask = mask << shift;
|
|
|
|
|
val = val << shift;
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_component_update_bits(component, rreg, val_mask,
|
|
|
|
|
val);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_get_volsw_range - single mixer get callback with range
|
|
|
|
|
* @kcontrol: mixer control
|
|
|
|
|
* @ucontrol: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback to get the value, within a range, of a single mixer control.
|
|
|
|
|
*
|
|
|
|
|
* Returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_mixer_control *mc =
|
|
|
|
|
(struct soc_mixer_control *)kcontrol->private_value;
|
|
|
|
|
unsigned int reg = mc->reg;
|
|
|
|
|
unsigned int rreg = mc->rreg;
|
|
|
|
|
unsigned int shift = mc->shift;
|
|
|
|
|
int min = mc->min;
|
|
|
|
|
int max = mc->max;
|
|
|
|
|
unsigned int mask = (1 << fls(max)) - 1;
|
|
|
|
|
unsigned int invert = mc->invert;
|
|
|
|
|
unsigned int val;
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_component_read(component, reg, &val);
|
|
|
|
|
if (ret)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
ucontrol->value.integer.value[0] = (val >> shift) & mask;
|
|
|
|
|
if (invert)
|
|
|
|
|
ucontrol->value.integer.value[0] =
|
|
|
|
|
max - ucontrol->value.integer.value[0];
|
|
|
|
|
else
|
|
|
|
|
ucontrol->value.integer.value[0] =
|
|
|
|
|
ucontrol->value.integer.value[0] - min;
|
|
|
|
|
|
|
|
|
|
if (snd_soc_volsw_is_stereo(mc)) {
|
|
|
|
|
ret = snd_soc_component_read(component, rreg, &val);
|
|
|
|
|
if (ret)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
ucontrol->value.integer.value[1] = (val >> shift) & mask;
|
|
|
|
|
if (invert)
|
|
|
|
|
ucontrol->value.integer.value[1] =
|
|
|
|
|
max - ucontrol->value.integer.value[1];
|
|
|
|
|
else
|
|
|
|
|
ucontrol->value.integer.value[1] =
|
|
|
|
|
ucontrol->value.integer.value[1] - min;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_limit_volume - Set new limit to an existing volume control.
|
|
|
|
|
*
|
|
|
|
|
* @codec: where to look for the control
|
|
|
|
|
* @name: Name of the control
|
|
|
|
|
* @max: new maximum limit
|
|
|
|
|
*
|
|
|
|
|
* Return 0 for success, else error.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_limit_volume(struct snd_soc_codec *codec,
|
|
|
|
|
const char *name, int max)
|
|
|
|
|
{
|
|
|
|
|
struct snd_card *card = codec->component.card->snd_card;
|
|
|
|
|
struct snd_kcontrol *kctl;
|
|
|
|
|
struct soc_mixer_control *mc;
|
|
|
|
|
int found = 0;
|
|
|
|
|
int ret = -EINVAL;
|
|
|
|
|
|
|
|
|
|
/* Sanity check for name and max */
|
|
|
|
|
if (unlikely(!name || max <= 0))
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
list_for_each_entry(kctl, &card->controls, list) {
|
|
|
|
|
if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
|
|
|
|
|
found = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (found) {
|
|
|
|
|
mc = (struct soc_mixer_control *)kctl->private_value;
|
|
|
|
|
if (max <= mc->max) {
|
|
|
|
|
mc->platform_max = max;
|
|
|
|
|
ret = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
|
|
|
|
|
|
|
|
|
|
int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_info *uinfo)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_bytes *params = (void *)kcontrol->private_value;
|
|
|
|
|
|
|
|
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
|
|
|
|
|
uinfo->count = params->num_regs * component->val_bytes;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
|
|
|
|
|
|
|
|
|
|
int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_bytes *params = (void *)kcontrol->private_value;
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
|
|
if (component->regmap)
|
|
|
|
|
ret = regmap_raw_read(component->regmap, params->base,
|
|
|
|
|
ucontrol->value.bytes.data,
|
|
|
|
|
params->num_regs * component->val_bytes);
|
|
|
|
|
else
|
|
|
|
|
ret = -EINVAL;
|
|
|
|
|
|
|
|
|
|
/* Hide any masked bytes to ensure consistent data reporting */
|
|
|
|
|
if (ret == 0 && params->mask) {
|
|
|
|
|
switch (component->val_bytes) {
|
|
|
|
|
case 1:
|
|
|
|
|
ucontrol->value.bytes.data[0] &= ~params->mask;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
((u16 *)(&ucontrol->value.bytes.data))[0]
|
|
|
|
|
&= cpu_to_be16(~params->mask);
|
|
|
|
|
break;
|
|
|
|
|
case 4:
|
|
|
|
|
((u32 *)(&ucontrol->value.bytes.data))[0]
|
|
|
|
|
&= cpu_to_be32(~params->mask);
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
|
|
|
|
|
|
|
|
|
|
int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_bytes *params = (void *)kcontrol->private_value;
|
|
|
|
|
int ret, len;
|
|
|
|
|
unsigned int val, mask;
|
|
|
|
|
void *data;
|
|
|
|
|
|
|
|
|
|
if (!component->regmap || !params->num_regs)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
len = params->num_regs * component->val_bytes;
|
|
|
|
|
|
|
|
|
|
data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
|
|
|
|
|
if (!data)
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* If we've got a mask then we need to preserve the register
|
|
|
|
|
* bits. We shouldn't modify the incoming data so take a
|
|
|
|
|
* copy.
|
|
|
|
|
*/
|
|
|
|
|
if (params->mask) {
|
|
|
|
|
ret = regmap_read(component->regmap, params->base, &val);
|
|
|
|
|
if (ret != 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
val &= params->mask;
|
|
|
|
|
|
|
|
|
|
switch (component->val_bytes) {
|
|
|
|
|
case 1:
|
|
|
|
|
((u8 *)data)[0] &= ~params->mask;
|
|
|
|
|
((u8 *)data)[0] |= val;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
mask = ~params->mask;
|
|
|
|
|
ret = regmap_parse_val(component->regmap,
|
|
|
|
|
&mask, &mask);
|
|
|
|
|
if (ret != 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
((u16 *)data)[0] &= mask;
|
|
|
|
|
|
|
|
|
|
ret = regmap_parse_val(component->regmap,
|
|
|
|
|
&val, &val);
|
|
|
|
|
if (ret != 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
((u16 *)data)[0] |= val;
|
|
|
|
|
break;
|
|
|
|
|
case 4:
|
|
|
|
|
mask = ~params->mask;
|
|
|
|
|
ret = regmap_parse_val(component->regmap,
|
|
|
|
|
&mask, &mask);
|
|
|
|
|
if (ret != 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
((u32 *)data)[0] &= mask;
|
|
|
|
|
|
|
|
|
|
ret = regmap_parse_val(component->regmap,
|
|
|
|
|
&val, &val);
|
|
|
|
|
if (ret != 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
((u32 *)data)[0] |= val;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
ret = -EINVAL;
|
|
|
|
|
goto out;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ret = regmap_raw_write(component->regmap, params->base,
|
|
|
|
|
data, len);
|
|
|
|
|
|
|
|
|
|
out:
|
|
|
|
|
kfree(data);
|
|
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
|
|
|
|
|
|
|
|
|
|
int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_info *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct soc_bytes_ext *params = (void *)kcontrol->private_value;
|
|
|
|
|
|
|
|
|
|
ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES;
|
|
|
|
|
ucontrol->count = params->max;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext);
|
|
|
|
|
|
|
|
|
|
int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag,
|
|
|
|
|
unsigned int size, unsigned int __user *tlv)
|
|
|
|
|
{
|
|
|
|
|
struct soc_bytes_ext *params = (void *)kcontrol->private_value;
|
|
|
|
|
unsigned int count = size < params->max ? size : params->max;
|
|
|
|
|
int ret = -ENXIO;
|
|
|
|
|
|
|
|
|
|
switch (op_flag) {
|
|
|
|
|
case SNDRV_CTL_TLV_OP_READ:
|
|
|
|
|
if (params->get)
|
|
|
|
|
ret = params->get(tlv, count);
|
|
|
|
|
break;
|
|
|
|
|
case SNDRV_CTL_TLV_OP_WRITE:
|
|
|
|
|
if (params->put)
|
|
|
|
|
ret = params->put(tlv, count);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_info_xr_sx - signed multi register info callback
|
|
|
|
|
* @kcontrol: mreg control
|
|
|
|
|
* @uinfo: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback to provide information of a control that can
|
|
|
|
|
* span multiple codec registers which together
|
|
|
|
|
* forms a single signed value in a MSB/LSB manner.
|
|
|
|
|
*
|
|
|
|
|
* Returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_info *uinfo)
|
|
|
|
|
{
|
|
|
|
|
struct soc_mreg_control *mc =
|
|
|
|
|
(struct soc_mreg_control *)kcontrol->private_value;
|
|
|
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
|
|
|
uinfo->count = 1;
|
|
|
|
|
uinfo->value.integer.min = mc->min;
|
|
|
|
|
uinfo->value.integer.max = mc->max;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_get_xr_sx - signed multi register get callback
|
|
|
|
|
* @kcontrol: mreg control
|
|
|
|
|
* @ucontrol: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback to get the value of a control that can span
|
|
|
|
|
* multiple codec registers which together forms a single
|
|
|
|
|
* signed value in a MSB/LSB manner. The control supports
|
|
|
|
|
* specifying total no of bits used to allow for bitfields
|
|
|
|
|
* across the multiple codec registers.
|
|
|
|
|
*
|
|
|
|
|
* Returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_mreg_control *mc =
|
|
|
|
|
(struct soc_mreg_control *)kcontrol->private_value;
|
|
|
|
|
unsigned int regbase = mc->regbase;
|
|
|
|
|
unsigned int regcount = mc->regcount;
|
|
|
|
|
unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
|
|
|
|
|
unsigned int regwmask = (1<<regwshift)-1;
|
|
|
|
|
unsigned int invert = mc->invert;
|
|
|
|
|
unsigned long mask = (1UL<<mc->nbits)-1;
|
|
|
|
|
long min = mc->min;
|
|
|
|
|
long max = mc->max;
|
|
|
|
|
long val = 0;
|
|
|
|
|
unsigned int regval;
|
|
|
|
|
unsigned int i;
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < regcount; i++) {
|
|
|
|
|
ret = snd_soc_component_read(component, regbase+i, ®val);
|
|
|
|
|
if (ret)
|
|
|
|
|
return ret;
|
|
|
|
|
val |= (regval & regwmask) << (regwshift*(regcount-i-1));
|
|
|
|
|
}
|
|
|
|
|
val &= mask;
|
|
|
|
|
if (min < 0 && val > max)
|
|
|
|
|
val |= ~mask;
|
|
|
|
|
if (invert)
|
|
|
|
|
val = max - val;
|
|
|
|
|
ucontrol->value.integer.value[0] = val;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_put_xr_sx - signed multi register get callback
|
|
|
|
|
* @kcontrol: mreg control
|
|
|
|
|
* @ucontrol: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback to set the value of a control that can span
|
|
|
|
|
* multiple codec registers which together forms a single
|
|
|
|
|
* signed value in a MSB/LSB manner. The control supports
|
|
|
|
|
* specifying total no of bits used to allow for bitfields
|
|
|
|
|
* across the multiple codec registers.
|
|
|
|
|
*
|
|
|
|
|
* Returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_mreg_control *mc =
|
|
|
|
|
(struct soc_mreg_control *)kcontrol->private_value;
|
|
|
|
|
unsigned int regbase = mc->regbase;
|
|
|
|
|
unsigned int regcount = mc->regcount;
|
|
|
|
|
unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
|
|
|
|
|
unsigned int regwmask = (1<<regwshift)-1;
|
|
|
|
|
unsigned int invert = mc->invert;
|
|
|
|
|
unsigned long mask = (1UL<<mc->nbits)-1;
|
|
|
|
|
long max = mc->max;
|
|
|
|
|
long val = ucontrol->value.integer.value[0];
|
|
|
|
|
unsigned int i, regval, regmask;
|
|
|
|
|
int err;
|
|
|
|
|
|
|
|
|
|
if (invert)
|
|
|
|
|
val = max - val;
|
|
|
|
|
val &= mask;
|
|
|
|
|
for (i = 0; i < regcount; i++) {
|
|
|
|
|
regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
|
|
|
|
|
regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
|
|
|
|
|
err = snd_soc_component_update_bits(component, regbase+i,
|
|
|
|
|
regmask, regval);
|
|
|
|
|
if (err < 0)
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_get_strobe - strobe get callback
|
|
|
|
|
* @kcontrol: mixer control
|
|
|
|
|
* @ucontrol: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback get the value of a strobe mixer control.
|
|
|
|
|
*
|
|
|
|
|
* Returns 0 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_mixer_control *mc =
|
|
|
|
|
(struct soc_mixer_control *)kcontrol->private_value;
|
|
|
|
|
unsigned int reg = mc->reg;
|
|
|
|
|
unsigned int shift = mc->shift;
|
|
|
|
|
unsigned int mask = 1 << shift;
|
|
|
|
|
unsigned int invert = mc->invert != 0;
|
|
|
|
|
unsigned int val;
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_component_read(component, reg, &val);
|
|
|
|
|
if (ret)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
val &= mask;
|
|
|
|
|
|
|
|
|
|
if (shift != 0 && val != 0)
|
|
|
|
|
val = val >> shift;
|
|
|
|
|
ucontrol->value.enumerated.item[0] = val ^ invert;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* snd_soc_put_strobe - strobe put callback
|
|
|
|
|
* @kcontrol: mixer control
|
|
|
|
|
* @ucontrol: control element information
|
|
|
|
|
*
|
|
|
|
|
* Callback strobe a register bit to high then low (or the inverse)
|
|
|
|
|
* in one pass of a single mixer enum control.
|
|
|
|
|
*
|
|
|
|
|
* Returns 1 for success.
|
|
|
|
|
*/
|
|
|
|
|
int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
|
|
|
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
|
|
struct soc_mixer_control *mc =
|
|
|
|
|
(struct soc_mixer_control *)kcontrol->private_value;
|
|
|
|
|
unsigned int reg = mc->reg;
|
|
|
|
|
unsigned int shift = mc->shift;
|
|
|
|
|
unsigned int mask = 1 << shift;
|
|
|
|
|
unsigned int invert = mc->invert != 0;
|
|
|
|
|
unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
|
|
|
|
|
unsigned int val1 = (strobe ^ invert) ? mask : 0;
|
|
|
|
|
unsigned int val2 = (strobe ^ invert) ? 0 : mask;
|
|
|
|
|
int err;
|
|
|
|
|
|
|
|
|
|
err = snd_soc_component_update_bits(component, reg, mask, val1);
|
|
|
|
|
if (err < 0)
|
|
|
|
|
return err;
|
|
|
|
|
|
|
|
|
|
return snd_soc_component_update_bits(component, reg, mask, val2);
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL_GPL(snd_soc_put_strobe);
|
Mark Brown