}
EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
-/**
- * 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);
-
/**
* snd_soc_dai_set_sysclk - configure DAI system or master clock.
* @dai: DAI
--- /dev/null
+/*
+ * 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);
projects / cascardo / linux.git / commitdiff