|
|
@@ -0,0 +1,952 @@
|
|
|
+/*
|
|
|
+ * soc-ops.c -- Generic ASoC operations
|
|
|
+ *
|
|
|
+ * Copyright 2005 Wolfson Microelectronics PLC.
|
|
|
+ * Copyright 2005 Openedhand Ltd.
|
|
|
+ * Copyright (C) 2010 Slimlogic Ltd.
|
|
|
+ * Copyright (C) 2010 Texas Instruments Inc.
|
|
|
+ *
|
|
|
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
|
|
|
+ * with code, comments and ideas from :-
|
|
|
+ * Richard Purdie <richard@openedhand.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.
|
|
|
+ */
|
|
|
+
|
|
|
+#include <linux/module.h>
|
|
|
+#include <linux/moduleparam.h>
|
|
|
+#include <linux/init.h>
|
|
|
+#include <linux/delay.h>
|
|
|
+#include <linux/pm.h>
|
|
|
+#include <linux/bitops.h>
|
|
|
+#include <linux/ctype.h>
|
|
|
+#include <linux/slab.h>
|
|
|
+#include <sound/core.h>
|
|
|
+#include <sound/jack.h>
|
|
|
+#include <sound/pcm.h>
|
|
|
+#include <sound/pcm_params.h>
|
|
|
+#include <sound/soc.h>
|
|
|
+#include <sound/soc-dpcm.h>
|
|
|
+#include <sound/initval.h>
|
|
|
+
|
|
|
+/**
|
|
|
+ * snd_soc_info_enum_double - enumerated double mixer info callback
|
|
|
+ * @kcontrol: mixer control
|
|
|
+ * @uinfo: control element information
|
|
|
+ *
|
|
|
+ * Callback to provide information about a double enumerated
|
|
|
+ * mixer control.
|
|
|
+ *
|
|
|
+ * Returns 0 for success.
|
|
|
+ */
|
|
|
+int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
|
|
|
+ struct snd_ctl_elem_info *uinfo)
|
|
|
+{
|
|
|
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
|
|
+
|
|
|
+ return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2,
|
|
|
+ e->items, e->texts);
|
|
|
+}
|
|
|
+EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
|
|
|
+
|
|
|
+/**
|
|
|
+ * snd_soc_get_enum_double - enumerated double mixer get callback
|
|
|
+ * @kcontrol: mixer control
|
|
|
+ * @ucontrol: control element information
|
|
|
+ *
|
|
|
+ * Callback to get the value of a double enumerated mixer.
|
|
|
+ *
|
|
|
+ * Returns 0 for success.
|
|
|
+ */
|
|
|
+int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
|
|
|
+ struct snd_ctl_elem_value *ucontrol)
|
|
|
+{
|
|
|
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
|
|
+ unsigned int val, item;
|
|
|
+ unsigned int reg_val;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ ret = snd_soc_component_read(component, e->reg, ®_val);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+ val = (reg_val >> e->shift_l) & e->mask;
|
|
|
+ item = snd_soc_enum_val_to_item(e, val);
|
|
|
+ ucontrol->value.enumerated.item[0] = item;
|
|
|
+ if (e->shift_l != e->shift_r) {
|
|
|
+ val = (reg_val >> e->shift_l) & e->mask;
|
|
|
+ item = snd_soc_enum_val_to_item(e, val);
|
|
|
+ ucontrol->value.enumerated.item[1] = item;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
|
|
|
+
|
|
|
+/**
|
|
|
+ * snd_soc_put_enum_double - enumerated double mixer put callback
|
|
|
+ * @kcontrol: mixer control
|
|
|
+ * @ucontrol: control element information
|
|
|
+ *
|
|
|
+ * Callback to set the value of a double enumerated mixer.
|
|
|
+ *
|
|
|
+ * Returns 0 for success.
|
|
|
+ */
|
|
|
+int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
|
|
|
+ struct snd_ctl_elem_value *ucontrol)
|
|
|
+{
|
|
|
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
|
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
|
|
+ unsigned int *item = ucontrol->value.enumerated.item;
|
|
|
+ unsigned int val;
|
|
|
+ unsigned int mask;
|
|
|
+
|
|
|
+ if (item[0] >= e->items)
|
|
|
+ return -EINVAL;
|
|
|
+ val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
|
|
|
+ mask = e->mask << e->shift_l;
|
|
|
+ if (e->shift_l != e->shift_r) {
|
|
|
+ if (item[1] >= e->items)
|
|
|
+ return -EINVAL;
|
|
|
+ val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r;
|
|
|
+ mask |= e->mask << e->shift_r;
|
|
|
+ }
|
|
|
+
|
|
|
+ return snd_soc_component_update_bits(component, e->reg, mask, val);
|
|
|
+}
|
|
|
+EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
|
|
|
+
|
|
|
+/**
|
|
|
+ * snd_soc_read_signed - Read a codec register and interprete as signed value
|
|
|
+ * @component: component
|
|
|
+ * @reg: Register to read
|
|
|
+ * @mask: Mask to use after shifting the register value
|
|
|
+ * @shift: Right shift of register value
|
|
|
+ * @sign_bit: Bit that describes if a number is negative or not.
|
|
|
+ * @signed_val: Pointer to where the read value should be stored
|
|
|
+ *
|
|
|
+ * This functions reads a codec register. The register value is shifted right
|
|
|
+ * by 'shift' bits and masked with the given 'mask'. Afterwards it translates
|
|
|
+ * the given registervalue into a signed integer if sign_bit is non-zero.
|
|
|
+ *
|
|
|
+ * Returns 0 on sucess, otherwise an error value
|
|
|
+ */
|
|
|
+static int snd_soc_read_signed(struct snd_soc_component *component,
|
|
|
+ unsigned int reg, unsigned int mask, unsigned int shift,
|
|
|
+ unsigned int sign_bit, int *signed_val)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+ unsigned int val;
|
|
|
+
|
|
|
+ ret = snd_soc_component_read(component, reg, &val);
|
|
|
+ if (ret < 0)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ val = (val >> shift) & mask;
|
|
|
+
|
|
|
+ if (!sign_bit) {
|
|
|
+ *signed_val = val;
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* non-negative number */
|
|
|
+ if (!(val & BIT(sign_bit))) {
|
|
|
+ *signed_val = val;
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ ret = val;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * The register most probably does not contain a full-sized int.
|
|
|
+ * Instead we have an arbitrary number of bits in a signed
|
|
|
+ * representation which has to be translated into a full-sized int.
|
|
|
+ * This is done by filling up all bits above the sign-bit.
|
|
|
+ */
|
|
|
+ ret |= ~((int)(BIT(sign_bit) - 1));
|
|
|
+
|
|
|
+ *signed_val = ret;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * snd_soc_info_volsw - single mixer info callback
|
|
|
+ * @kcontrol: mixer control
|
|
|
+ * @uinfo: control element information
|
|
|
+ *
|
|
|
+ * Callback to provide information about a single mixer control, or a double
|
|
|
+ * mixer control that spans 2 registers.
|
|
|
+ *
|
|
|
+ * Returns 0 for success.
|
|
|
+ */
|
|
|
+int snd_soc_info_volsw(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;
|
|
|
+
|
|
|
+ if (!mc->platform_max)
|
|
|
+ mc->platform_max = mc->max;
|
|
|
+ platform_max = mc->platform_max;
|
|
|
+
|
|
|
+ if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
|
|
|
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
|
|
|
+ else
|
|
|
+ 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 - mc->min;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
|
|
|
+
|
|
|
+/**
|
|
|
+ * snd_soc_get_volsw - 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(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 sign_bit = mc->sign_bit;
|
|
|
+ unsigned int mask = (1 << fls(max)) - 1;
|
|
|
+ unsigned int invert = mc->invert;
|
|
|
+ int val;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ if (sign_bit)
|
|
|
+ mask = BIT(sign_bit + 1) - 1;
|
|
|
+
|
|
|
+ ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ ucontrol->value.integer.value[0] = val - min;
|
|
|
+ if (invert)
|
|
|
+ ucontrol->value.integer.value[0] =
|
|
|
+ max - ucontrol->value.integer.value[0];
|
|
|
+
|
|
|
+ if (snd_soc_volsw_is_stereo(mc)) {
|
|
|
+ if (reg == reg2)
|
|
|
+ ret = snd_soc_read_signed(component, reg, mask, rshift,
|
|
|
+ sign_bit, &val);
|
|
|
+ else
|
|
|
+ ret = snd_soc_read_signed(component, reg2, mask, shift,
|
|
|
+ sign_bit, &val);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ ucontrol->value.integer.value[1] = val - min;
|
|
|
+ if (invert)
|
|
|
+ ucontrol->value.integer.value[1] =
|
|
|
+ max - ucontrol->value.integer.value[1];
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
|
|
|
+
|
|
|
+/**
|
|
|
+ * snd_soc_put_volsw - single mixer put callback
|
|
|
+ * @kcontrol: mixer control
|
|
|
+ * @ucontrol: control element information
|
|
|
+ *
|
|
|
+ * Callback to set the value of a single mixer control, or a double mixer
|
|
|
+ * control that spans 2 registers.
|
|
|
+ *
|
|
|
+ * Returns 0 for success.
|
|
|
+ */
|
|
|
+int snd_soc_put_volsw(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;
|
|
|
+ unsigned int sign_bit = mc->sign_bit;
|
|
|
+ unsigned int mask = (1 << fls(max)) - 1;
|
|
|
+ unsigned int invert = mc->invert;
|
|
|
+ int err;
|
|
|
+ bool type_2r = false;
|
|
|
+ unsigned int val2 = 0;
|
|
|
+ unsigned int val, val_mask;
|
|
|
+
|
|
|
+ if (sign_bit)
|
|
|
+ mask = BIT(sign_bit + 1) - 1;
|
|
|
+
|
|
|
+ val = ((ucontrol->value.integer.value[0] + min) & mask);
|
|
|
+ if (invert)
|
|
|
+ val = max - val;
|
|
|
+ val_mask = mask << shift;
|
|
|
+ val = val << shift;
|
|
|
+ if (snd_soc_volsw_is_stereo(mc)) {
|
|
|
+ val2 = ((ucontrol->value.integer.value[1] + min) & mask);
|
|
|
+ if (invert)
|
|
|
+ val2 = max - val2;
|
|
|
+ if (reg == reg2) {
|
|
|
+ val_mask |= mask << rshift;
|
|
|
+ val |= val2 << rshift;
|
|
|
+ } else {
|
|
|
+ val2 = val2 << shift;
|
|
|
+ type_2r = true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ err = snd_soc_component_update_bits(component, reg, val_mask, val);
|
|
|
+ if (err < 0)
|
|
|
+ return err;
|
|
|
+
|
|
|
+ if (type_2r)
|
|
|
+ err = snd_soc_component_update_bits(component, reg2, val_mask,
|
|
|
+ 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