mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
984 lines
26 KiB
984 lines
26 KiB
// SPDX-License-Identifier: GPL-2.0+ |
|
// |
|
// 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 <[email protected]> |
|
// with code, comments and ideas from :- |
|
// Richard Purdie <[email protected]> |
|
|
|
#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; |
|
|
|
reg_val = snd_soc_component_read(component, e->reg); |
|
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_r) & 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 interpret 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; |
|
|
|
val = snd_soc_component_read(component, reg); |
|
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_info_volsw_sx - Mixer info callback for SX TLV controls |
|
* @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 of the SX TLV type. SX TLV controls |
|
* have a range that represents both positive and negative values either side |
|
* of zero but without a sign bit. |
|
* |
|
* Returns 0 for success. |
|
*/ |
|
int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol, |
|
struct snd_ctl_elem_info *uinfo) |
|
{ |
|
struct soc_mixer_control *mc = |
|
(struct soc_mixer_control *)kcontrol->private_value; |
|
|
|
snd_soc_info_volsw(kcontrol, uinfo); |
|
/* Max represents the number of levels in an SX control not the |
|
* maximum value, so add the minimum value back on |
|
*/ |
|
uinfo->value.integer.max += mc->min; |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL_GPL(snd_soc_info_volsw_sx); |
|
|
|
/** |
|
* 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, ret; |
|
bool type_2r = false; |
|
unsigned int val2 = 0; |
|
unsigned int val, val_mask; |
|
|
|
if (sign_bit) |
|
mask = BIT(sign_bit + 1) - 1; |
|
|
|
if (ucontrol->value.integer.value[0] < 0) |
|
return -EINVAL; |
|
val = ucontrol->value.integer.value[0]; |
|
if (mc->platform_max && ((int)val + min) > mc->platform_max) |
|
return -EINVAL; |
|
if (val > max - min) |
|
return -EINVAL; |
|
val = (val + min) & mask; |
|
if (invert) |
|
val = max - val; |
|
val_mask = mask << shift; |
|
val = val << shift; |
|
if (snd_soc_volsw_is_stereo(mc)) { |
|
if (ucontrol->value.integer.value[1] < 0) |
|
return -EINVAL; |
|
val2 = ucontrol->value.integer.value[1]; |
|
if (mc->platform_max && ((int)val2 + min) > mc->platform_max) |
|
return -EINVAL; |
|
if (val2 > max - min) |
|
return -EINVAL; |
|
val2 = (val2 + 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; |
|
ret = err; |
|
|
|
if (type_2r) { |
|
err = snd_soc_component_update_bits(component, reg2, val_mask, |
|
val2); |
|
/* Don't discard any error code or drop change flag */ |
|
if (ret == 0 || err < 0) { |
|
ret = err; |
|
} |
|
} |
|
|
|
return ret; |
|
} |
|
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; |
|
unsigned int mask = (1U << (fls(min + max) - 1)) - 1; |
|
unsigned int val; |
|
|
|
val = snd_soc_component_read(component, reg); |
|
ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask; |
|
|
|
if (snd_soc_volsw_is_stereo(mc)) { |
|
val = snd_soc_component_read(component, reg2); |
|
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 |
|
* @ucontrol: 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; |
|
unsigned int mask = (1U << (fls(min + max) - 1)) - 1; |
|
int err = 0; |
|
int ret; |
|
unsigned int val, val_mask; |
|
|
|
if (ucontrol->value.integer.value[0] < 0) |
|
return -EINVAL; |
|
val = ucontrol->value.integer.value[0]; |
|
if (mc->platform_max && val > mc->platform_max) |
|
return -EINVAL; |
|
if (val > max - min) |
|
return -EINVAL; |
|
val_mask = mask << shift; |
|
val = (val + min) & mask; |
|
val = val << shift; |
|
|
|
err = snd_soc_component_update_bits(component, reg, val_mask, val); |
|
if (err < 0) |
|
return err; |
|
ret = err; |
|
|
|
if (snd_soc_volsw_is_stereo(mc)) { |
|
unsigned int val2; |
|
|
|
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); |
|
|
|
/* Don't discard any error code or drop change flag */ |
|
if (ret == 0 || err < 0) { |
|
ret = err; |
|
} |
|
} |
|
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 err, 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; |
|
|
|
err = snd_soc_component_update_bits(component, reg, val_mask, val); |
|
if (err < 0) |
|
return err; |
|
ret = err; |
|
|
|
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; |
|
|
|
err = snd_soc_component_update_bits(component, rreg, val_mask, |
|
val); |
|
/* Don't discard any error code or drop change flag */ |
|
if (ret == 0 || err < 0) { |
|
ret = err; |
|
} |
|
} |
|
|
|
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; |
|
|
|
val = snd_soc_component_read(component, reg); |
|
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)) { |
|
val = snd_soc_component_read(component, rreg); |
|
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. |
|
* |
|
* @card: 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_card *card, |
|
const char *name, int max) |
|
{ |
|
struct snd_kcontrol *kctl; |
|
int ret = -EINVAL; |
|
|
|
/* Sanity check for name and max */ |
|
if (unlikely(!name || max <= 0)) |
|
return -EINVAL; |
|
|
|
kctl = snd_soc_card_get_kcontrol(card, name); |
|
if (kctl) { |
|
struct soc_mixer_control *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(kcontrol, tlv, count); |
|
break; |
|
case SNDRV_CTL_TLV_OP_WRITE: |
|
if (params->put) |
|
ret = params->put(kcontrol, 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 = (1UL<<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 i; |
|
|
|
for (i = 0; i < regcount; i++) { |
|
unsigned int regval = snd_soc_component_read(component, regbase+i); |
|
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 = (1UL<<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]; |
|
int ret = 0; |
|
unsigned int i; |
|
|
|
if (val < mc->min || val > mc->max) |
|
return -EINVAL; |
|
if (invert) |
|
val = max - val; |
|
val &= mask; |
|
for (i = 0; i < regcount; i++) { |
|
unsigned int regval = (val >> (regwshift*(regcount-i-1))) & regwmask; |
|
unsigned int regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; |
|
int err = snd_soc_component_update_bits(component, regbase+i, |
|
regmask, regval); |
|
if (err < 0) |
|
return err; |
|
if (err > 0) |
|
ret = err; |
|
} |
|
|
|
return ret; |
|
} |
|
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; |
|
|
|
val = snd_soc_component_read(component, reg); |
|
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);
|
|
|