| /* |
| * 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. |
| * |
| * @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_card *snd_card = 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, &snd_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); |