diff options
Diffstat (limited to 'sound/soc/soc-topology.c')
| -rw-r--r-- | sound/soc/soc-topology.c | 2618 |
1 files changed, 2618 insertions, 0 deletions
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c new file mode 100644 index 000000000..776250feb --- /dev/null +++ b/sound/soc/soc-topology.c @@ -0,0 +1,2618 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// soc-topology.c -- ALSA SoC Topology +// +// Copyright (C) 2012 Texas Instruments Inc. +// Copyright (C) 2015 Intel Corporation. +// +// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> +// K, Mythri P <mythri.p.k@intel.com> +// Prusty, Subhransu S <subhransu.s.prusty@intel.com> +// B, Jayachandran <jayachandran.b@intel.com> +// Abdullah, Omair M <omair.m.abdullah@intel.com> +// Jin, Yao <yao.jin@intel.com> +// Lin, Mengdong <mengdong.lin@intel.com> +// +// Add support to read audio firmware topology alongside firmware text. The +// topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links, +// equalizers, firmware, coefficients etc. +// +// This file only manages the core ALSA and ASoC components, all other bespoke +// firmware topology data is passed to component drivers for bespoke handling. + +#include <linux/kernel.h> +#include <linux/export.h> +#include <linux/list.h> +#include <linux/firmware.h> +#include <linux/slab.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/soc-topology.h> +#include <sound/tlv.h> + +/* + * We make several passes over the data (since it wont necessarily be ordered) + * and process objects in the following order. This guarantees the component + * drivers will be ready with any vendor data before the mixers and DAPM objects + * are loaded (that may make use of the vendor data). + */ +#define SOC_TPLG_PASS_MANIFEST 0 +#define SOC_TPLG_PASS_VENDOR 1 +#define SOC_TPLG_PASS_MIXER 2 +#define SOC_TPLG_PASS_WIDGET 3 +#define SOC_TPLG_PASS_PCM_DAI 4 +#define SOC_TPLG_PASS_GRAPH 5 +#define SOC_TPLG_PASS_PINS 6 +#define SOC_TPLG_PASS_BE_DAI 7 +#define SOC_TPLG_PASS_LINK 8 + +#define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST +#define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK + +/* topology context */ +struct soc_tplg { + const struct firmware *fw; + + /* runtime FW parsing */ + const u8 *pos; /* read postion */ + const u8 *hdr_pos; /* header position */ + unsigned int pass; /* pass number */ + + /* component caller */ + struct device *dev; + struct snd_soc_component *comp; + u32 index; /* current block index */ + u32 req_index; /* required index, only loaded/free matching blocks */ + + /* vendor specific kcontrol operations */ + const struct snd_soc_tplg_kcontrol_ops *io_ops; + int io_ops_count; + + /* vendor specific bytes ext handlers, for TLV bytes controls */ + const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; + int bytes_ext_ops_count; + + /* optional fw loading callbacks to component drivers */ + struct snd_soc_tplg_ops *ops; +}; + +static int soc_tplg_process_headers(struct soc_tplg *tplg); +static void soc_tplg_complete(struct soc_tplg *tplg); +struct snd_soc_dapm_widget * +snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_widget *widget); +struct snd_soc_dapm_widget * +snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_widget *widget); + +/* check we dont overflow the data for this control chunk */ +static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, + unsigned int count, size_t bytes, const char *elem_type) +{ + const u8 *end = tplg->pos + elem_size * count; + + if (end > tplg->fw->data + tplg->fw->size) { + dev_err(tplg->dev, "ASoC: %s overflow end of data\n", + elem_type); + return -EINVAL; + } + + /* check there is enough room in chunk for control. + extra bytes at the end of control are for vendor data here */ + if (elem_size * count > bytes) { + dev_err(tplg->dev, + "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", + elem_type, count, elem_size, bytes); + return -EINVAL; + } + + return 0; +} + +static inline int soc_tplg_is_eof(struct soc_tplg *tplg) +{ + const u8 *end = tplg->hdr_pos; + + if (end >= tplg->fw->data + tplg->fw->size) + return 1; + return 0; +} + +static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) +{ + return (unsigned long)(tplg->hdr_pos - tplg->fw->data); +} + +static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) +{ + return (unsigned long)(tplg->pos - tplg->fw->data); +} + +/* mapping of Kcontrol types and associated operations. */ +static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { + {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, + snd_soc_put_volsw, snd_soc_info_volsw}, + {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, + snd_soc_put_volsw_sx, NULL}, + {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, + snd_soc_put_enum_double, snd_soc_info_enum_double}, + {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, + snd_soc_put_enum_double, NULL}, + {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, + snd_soc_bytes_put, snd_soc_bytes_info}, + {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, + snd_soc_put_volsw_range, snd_soc_info_volsw_range}, + {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, + snd_soc_put_xr_sx, snd_soc_info_xr_sx}, + {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, + snd_soc_put_strobe, NULL}, + {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, + snd_soc_dapm_put_volsw, snd_soc_info_volsw}, + {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, + snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, + {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, + snd_soc_dapm_put_enum_double, NULL}, + {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, + snd_soc_dapm_put_enum_double, NULL}, + {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, + snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, +}; + +struct soc_tplg_map { + int uid; + int kid; +}; + +/* mapping of widget types from UAPI IDs to kernel IDs */ +static const struct soc_tplg_map dapm_map[] = { + {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, + {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, + {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, + {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, + {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, + {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, + {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, + {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, + {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, + {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, + {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, + {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, + {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, + {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, + {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, + {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, + {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, + {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, + {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, + {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, + {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, + {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, + {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, + {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, +}; + +static int tplc_chan_get_reg(struct soc_tplg *tplg, + struct snd_soc_tplg_channel *chan, int map) +{ + int i; + + for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { + if (chan[i].id == map) + return chan[i].reg; + } + + return -EINVAL; +} + +static int tplc_chan_get_shift(struct soc_tplg *tplg, + struct snd_soc_tplg_channel *chan, int map) +{ + int i; + + for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { + if (chan[i].id == map) + return chan[i].shift; + } + + return -EINVAL; +} + +static int get_widget_id(int tplg_type) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { + if (tplg_type == dapm_map[i].uid) + return dapm_map[i].kid; + } + + return -EINVAL; +} + +static inline void soc_bind_err(struct soc_tplg *tplg, + struct snd_soc_tplg_ctl_hdr *hdr, int index) +{ + dev_err(tplg->dev, + "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", + hdr->ops.get, hdr->ops.put, hdr->ops.info, index, + soc_tplg_get_offset(tplg)); +} + +static inline void soc_control_err(struct soc_tplg *tplg, + struct snd_soc_tplg_ctl_hdr *hdr, const char *name) +{ + dev_err(tplg->dev, + "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", + name, hdr->ops.get, hdr->ops.put, hdr->ops.info, + soc_tplg_get_offset(tplg)); +} + +/* pass vendor data to component driver for processing */ +static int soc_tplg_vendor_load_(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + int ret = 0; + + if (tplg->comp && tplg->ops && tplg->ops->vendor_load) + ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); + else { + dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", + hdr->vendor_type); + return -EINVAL; + } + + if (ret < 0) + dev_err(tplg->dev, + "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", + soc_tplg_get_hdr_offset(tplg), + soc_tplg_get_hdr_offset(tplg), + hdr->type, hdr->vendor_type); + return ret; +} + +/* pass vendor data to component driver for processing */ +static int soc_tplg_vendor_load(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + if (tplg->pass != SOC_TPLG_PASS_VENDOR) + return 0; + + return soc_tplg_vendor_load_(tplg, hdr); +} + +/* optionally pass new dynamic widget to component driver. This is mainly for + * external widgets where we can assign private data/ops */ +static int soc_tplg_widget_load(struct soc_tplg *tplg, + struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) +{ + if (tplg->comp && tplg->ops && tplg->ops->widget_load) + return tplg->ops->widget_load(tplg->comp, tplg->index, w, + tplg_w); + + return 0; +} + +/* optionally pass new dynamic widget to component driver. This is mainly for + * external widgets where we can assign private data/ops */ +static int soc_tplg_widget_ready(struct soc_tplg *tplg, + struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) +{ + if (tplg->comp && tplg->ops && tplg->ops->widget_ready) + return tplg->ops->widget_ready(tplg->comp, tplg->index, w, + tplg_w); + + return 0; +} + +/* pass DAI configurations to component driver for extra initialization */ +static int soc_tplg_dai_load(struct soc_tplg *tplg, + struct snd_soc_dai_driver *dai_drv, + struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) +{ + if (tplg->comp && tplg->ops && tplg->ops->dai_load) + return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, + pcm, dai); + + return 0; +} + +/* pass link configurations to component driver for extra initialization */ +static int soc_tplg_dai_link_load(struct soc_tplg *tplg, + struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) +{ + if (tplg->comp && tplg->ops && tplg->ops->link_load) + return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); + + return 0; +} + +/* tell the component driver that all firmware has been loaded in this request */ +static void soc_tplg_complete(struct soc_tplg *tplg) +{ + if (tplg->comp && tplg->ops && tplg->ops->complete) + tplg->ops->complete(tplg->comp); +} + +/* add a dynamic kcontrol */ +static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, + const struct snd_kcontrol_new *control_new, const char *prefix, + void *data, struct snd_kcontrol **kcontrol) +{ + int err; + + *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); + if (*kcontrol == NULL) { + dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", + control_new->name); + return -ENOMEM; + } + + err = snd_ctl_add(card, *kcontrol); + if (err < 0) { + dev_err(dev, "ASoC: Failed to add %s: %d\n", + control_new->name, err); + return err; + } + + return 0; +} + +/* add a dynamic kcontrol for component driver */ +static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, + struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) +{ + struct snd_soc_component *comp = tplg->comp; + + return soc_tplg_add_dcontrol(comp->card->snd_card, + comp->dev, k, comp->name_prefix, comp, kcontrol); +} + +/* remove a mixer kcontrol */ +static void remove_mixer(struct snd_soc_component *comp, + struct snd_soc_dobj *dobj, int pass) +{ + struct snd_card *card = comp->card->snd_card; + struct soc_mixer_control *sm = + container_of(dobj, struct soc_mixer_control, dobj); + const unsigned int *p = NULL; + + if (pass != SOC_TPLG_PASS_MIXER) + return; + + if (dobj->ops && dobj->ops->control_unload) + dobj->ops->control_unload(comp, dobj); + + if (sm->dobj.control.kcontrol->tlv.p) + p = sm->dobj.control.kcontrol->tlv.p; + snd_ctl_remove(card, sm->dobj.control.kcontrol); + list_del(&sm->dobj.list); + kfree(sm); + kfree(p); +} + +/* remove an enum kcontrol */ +static void remove_enum(struct snd_soc_component *comp, + struct snd_soc_dobj *dobj, int pass) +{ + struct snd_card *card = comp->card->snd_card; + struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); + int i; + + if (pass != SOC_TPLG_PASS_MIXER) + return; + + if (dobj->ops && dobj->ops->control_unload) + dobj->ops->control_unload(comp, dobj); + + snd_ctl_remove(card, se->dobj.control.kcontrol); + list_del(&se->dobj.list); + + kfree(se->dobj.control.dvalues); + for (i = 0; i < se->items; i++) + kfree(se->dobj.control.dtexts[i]); + kfree(se); +} + +/* remove a byte kcontrol */ +static void remove_bytes(struct snd_soc_component *comp, + struct snd_soc_dobj *dobj, int pass) +{ + struct snd_card *card = comp->card->snd_card; + struct soc_bytes_ext *sb = + container_of(dobj, struct soc_bytes_ext, dobj); + + if (pass != SOC_TPLG_PASS_MIXER) + return; + + if (dobj->ops && dobj->ops->control_unload) + dobj->ops->control_unload(comp, dobj); + + snd_ctl_remove(card, sb->dobj.control.kcontrol); + list_del(&sb->dobj.list); + kfree(sb); +} + +/* remove a widget and it's kcontrols - routes must be removed first */ +static void remove_widget(struct snd_soc_component *comp, + struct snd_soc_dobj *dobj, int pass) +{ + struct snd_card *card = comp->card->snd_card; + struct snd_soc_dapm_widget *w = + container_of(dobj, struct snd_soc_dapm_widget, dobj); + int i; + + if (pass != SOC_TPLG_PASS_WIDGET) + return; + + if (dobj->ops && dobj->ops->widget_unload) + dobj->ops->widget_unload(comp, dobj); + + if (!w->kcontrols) + goto free_news; + + /* + * Dynamic Widgets either have 1..N enum kcontrols or mixers. + * The enum may either have an array of values or strings. + */ + if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { + /* enumerated widget mixer */ + for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { + struct snd_kcontrol *kcontrol = w->kcontrols[i]; + struct soc_enum *se = + (struct soc_enum *)kcontrol->private_value; + int j; + + snd_ctl_remove(card, kcontrol); + + kfree(se->dobj.control.dvalues); + for (j = 0; j < se->items; j++) + kfree(se->dobj.control.dtexts[j]); + + kfree(se); + kfree(w->kcontrol_news[i].name); + } + } else { + /* volume mixer or bytes controls */ + for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { + struct snd_kcontrol *kcontrol = w->kcontrols[i]; + + if (dobj->widget.kcontrol_type + == SND_SOC_TPLG_TYPE_MIXER) + kfree(kcontrol->tlv.p); + + /* Private value is used as struct soc_mixer_control + * for volume mixers or soc_bytes_ext for bytes + * controls. + */ + kfree((void *)kcontrol->private_value); + snd_ctl_remove(card, kcontrol); + kfree(w->kcontrol_news[i].name); + } + } + +free_news: + kfree(w->kcontrol_news); + + /* widget w is freed by soc-dapm.c */ +} + +/* remove DAI configurations */ +static void remove_dai(struct snd_soc_component *comp, + struct snd_soc_dobj *dobj, int pass) +{ + struct snd_soc_dai_driver *dai_drv = + container_of(dobj, struct snd_soc_dai_driver, dobj); + + if (pass != SOC_TPLG_PASS_PCM_DAI) + return; + + if (dobj->ops && dobj->ops->dai_unload) + dobj->ops->dai_unload(comp, dobj); + + kfree(dai_drv->name); + list_del(&dobj->list); + kfree(dai_drv); +} + +/* remove link configurations */ +static void remove_link(struct snd_soc_component *comp, + struct snd_soc_dobj *dobj, int pass) +{ + struct snd_soc_dai_link *link = + container_of(dobj, struct snd_soc_dai_link, dobj); + + if (pass != SOC_TPLG_PASS_PCM_DAI) + return; + + if (dobj->ops && dobj->ops->link_unload) + dobj->ops->link_unload(comp, dobj); + + kfree(link->name); + kfree(link->stream_name); + kfree(link->cpu_dai_name); + + list_del(&dobj->list); + snd_soc_remove_dai_link(comp->card, link); + kfree(link); +} + +/* bind a kcontrol to it's IO handlers */ +static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, + struct snd_kcontrol_new *k, + const struct soc_tplg *tplg) +{ + const struct snd_soc_tplg_kcontrol_ops *ops; + const struct snd_soc_tplg_bytes_ext_ops *ext_ops; + int num_ops, i; + + if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES + && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER + && (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ + || k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) + && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { + struct soc_bytes_ext *sbe; + struct snd_soc_tplg_bytes_control *be; + + sbe = (struct soc_bytes_ext *)k->private_value; + be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); + + /* TLV bytes controls need standard kcontrol info handler, + * TLV callback and extended put/get handlers. + */ + k->info = snd_soc_bytes_info_ext; + k->tlv.c = snd_soc_bytes_tlv_callback; + + ext_ops = tplg->bytes_ext_ops; + num_ops = tplg->bytes_ext_ops_count; + for (i = 0; i < num_ops; i++) { + if (!sbe->put && ext_ops[i].id == be->ext_ops.put) + sbe->put = ext_ops[i].put; + if (!sbe->get && ext_ops[i].id == be->ext_ops.get) + sbe->get = ext_ops[i].get; + } + + if (sbe->put && sbe->get) + return 0; + else + return -EINVAL; + } + + /* try and map vendor specific kcontrol handlers first */ + ops = tplg->io_ops; + num_ops = tplg->io_ops_count; + for (i = 0; i < num_ops; i++) { + + if (k->put == NULL && ops[i].id == hdr->ops.put) + k->put = ops[i].put; + if (k->get == NULL && ops[i].id == hdr->ops.get) + k->get = ops[i].get; + if (k->info == NULL && ops[i].id == hdr->ops.info) + k->info = ops[i].info; + } + + /* vendor specific handlers found ? */ + if (k->put && k->get && k->info) + return 0; + + /* none found so try standard kcontrol handlers */ + ops = io_ops; + num_ops = ARRAY_SIZE(io_ops); + for (i = 0; i < num_ops; i++) { + + if (k->put == NULL && ops[i].id == hdr->ops.put) + k->put = ops[i].put; + if (k->get == NULL && ops[i].id == hdr->ops.get) + k->get = ops[i].get; + if (k->info == NULL && ops[i].id == hdr->ops.info) + k->info = ops[i].info; + } + + /* standard handlers found ? */ + if (k->put && k->get && k->info) + return 0; + + /* nothing to bind */ + return -EINVAL; +} + +/* bind a widgets to it's evnt handlers */ +int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, + const struct snd_soc_tplg_widget_events *events, + int num_events, u16 event_type) +{ + int i; + + w->event = NULL; + + for (i = 0; i < num_events; i++) { + if (event_type == events[i].type) { + + /* found - so assign event */ + w->event = events[i].event_handler; + return 0; + } + } + + /* not found */ + return -EINVAL; +} +EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); + +/* optionally pass new dynamic kcontrol to component driver. */ +static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, + struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) +{ + if (tplg->comp && tplg->ops && tplg->ops->control_load) + return tplg->ops->control_load(tplg->comp, tplg->index, k, + hdr); + + return 0; +} + + +static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, + struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) +{ + unsigned int item_len = 2 * sizeof(unsigned int); + unsigned int *p; + + p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); + if (!p) + return -ENOMEM; + + p[0] = SNDRV_CTL_TLVT_DB_SCALE; + p[1] = item_len; + p[2] = scale->min; + p[3] = (scale->step & TLV_DB_SCALE_MASK) + | (scale->mute ? TLV_DB_SCALE_MUTE : 0); + + kc->tlv.p = (void *)p; + return 0; +} + +static int soc_tplg_create_tlv(struct soc_tplg *tplg, + struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) +{ + struct snd_soc_tplg_ctl_tlv *tplg_tlv; + + if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) + return 0; + + if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { + tplg_tlv = &tc->tlv; + switch (tplg_tlv->type) { + case SNDRV_CTL_TLVT_DB_SCALE: + return soc_tplg_create_tlv_db_scale(tplg, kc, + &tplg_tlv->scale); + + /* TODO: add support for other TLV types */ + default: + dev_dbg(tplg->dev, "Unsupported TLV type %d\n", + tplg_tlv->type); + return -EINVAL; + } + } + + return 0; +} + +static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, + struct snd_kcontrol_new *kc) +{ + kfree(kc->tlv.p); +} + +static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, + size_t size) +{ + struct snd_soc_tplg_bytes_control *be; + struct soc_bytes_ext *sbe; + struct snd_kcontrol_new kc; + int i, err; + + if (soc_tplg_check_elem_count(tplg, + sizeof(struct snd_soc_tplg_bytes_control), count, + size, "mixer bytes")) { + dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", + count); + return -EINVAL; + } + + for (i = 0; i < count; i++) { + be = (struct snd_soc_tplg_bytes_control *)tplg->pos; + + /* validate kcontrol */ + if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + + sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); + if (sbe == NULL) + return -ENOMEM; + + tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + + be->priv.size); + + dev_dbg(tplg->dev, + "ASoC: adding bytes kcontrol %s with access 0x%x\n", + be->hdr.name, be->hdr.access); + + memset(&kc, 0, sizeof(kc)); + kc.name = be->hdr.name; + kc.private_value = (long)sbe; + kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + kc.access = be->hdr.access; + + sbe->max = be->max; + sbe->dobj.type = SND_SOC_DOBJ_BYTES; + sbe->dobj.ops = tplg->ops; + INIT_LIST_HEAD(&sbe->dobj.list); + + /* map io handlers */ + err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); + if (err) { + soc_control_err(tplg, &be->hdr, be->hdr.name); + kfree(sbe); + continue; + } + + /* pass control to driver for optional further init */ + err = soc_tplg_init_kcontrol(tplg, &kc, + (struct snd_soc_tplg_ctl_hdr *)be); + if (err < 0) { + dev_err(tplg->dev, "ASoC: failed to init %s\n", + be->hdr.name); + kfree(sbe); + continue; + } + + /* register control here */ + err = soc_tplg_add_kcontrol(tplg, &kc, + &sbe->dobj.control.kcontrol); + if (err < 0) { + dev_err(tplg->dev, "ASoC: failed to add %s\n", + be->hdr.name); + kfree(sbe); + continue; + } + + list_add(&sbe->dobj.list, &tplg->comp->dobj_list); + } + return 0; + +} + +static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, + size_t size) +{ + struct snd_soc_tplg_mixer_control *mc; + struct soc_mixer_control *sm; + struct snd_kcontrol_new kc; + int i, err; + + if (soc_tplg_check_elem_count(tplg, + sizeof(struct snd_soc_tplg_mixer_control), + count, size, "mixers")) { + + dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", + count); + return -EINVAL; + } + + for (i = 0; i < count; i++) { + mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; + + /* validate kcontrol */ + if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + + sm = kzalloc(sizeof(*sm), GFP_KERNEL); + if (sm == NULL) + return -ENOMEM; + tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + + mc->priv.size); + + dev_dbg(tplg->dev, + "ASoC: adding mixer kcontrol %s with access 0x%x\n", + mc->hdr.name, mc->hdr.access); + + memset(&kc, 0, sizeof(kc)); + kc.name = mc->hdr.name; + kc.private_value = (long)sm; + kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + kc.access = mc->hdr.access; + + /* we only support FL/FR channel mapping atm */ + sm->reg = tplc_chan_get_reg(tplg, mc->channel, + SNDRV_CHMAP_FL); + sm->rreg = tplc_chan_get_reg(tplg, mc->channel, + SNDRV_CHMAP_FR); + sm->shift = tplc_chan_get_shift(tplg, mc->channel, + SNDRV_CHMAP_FL); + sm->rshift = tplc_chan_get_shift(tplg, mc->channel, + SNDRV_CHMAP_FR); + + sm->max = mc->max; + sm->min = mc->min; + sm->invert = mc->invert; + sm->platform_max = mc->platform_max; + sm->dobj.index = tplg->index; + sm->dobj.ops = tplg->ops; + sm->dobj.type = SND_SOC_DOBJ_MIXER; + INIT_LIST_HEAD(&sm->dobj.list); + + /* map io handlers */ + err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); + if (err) { + soc_control_err(tplg, &mc->hdr, mc->hdr.name); + kfree(sm); + continue; + } + + /* pass control to driver for optional further init */ + err = soc_tplg_init_kcontrol(tplg, &kc, + (struct snd_soc_tplg_ctl_hdr *) mc); + if (err < 0) { + dev_err(tplg->dev, "ASoC: failed to init %s\n", + mc->hdr.name); + kfree(sm); + continue; + } + + /* create any TLV data */ + soc_tplg_create_tlv(tplg, &kc, &mc->hdr); + + /* register control here */ + err = soc_tplg_add_kcontrol(tplg, &kc, + &sm->dobj.control.kcontrol); + if (err < 0) { + dev_err(tplg->dev, "ASoC: failed to add %s\n", + mc->hdr.name); + soc_tplg_free_tlv(tplg, &kc); + kfree(sm); + continue; + } + + list_add(&sm->dobj.list, &tplg->comp->dobj_list); + } + + return 0; +} + +static int soc_tplg_denum_create_texts(struct soc_enum *se, + struct snd_soc_tplg_enum_control *ec) +{ + int i, ret; + + se->dobj.control.dtexts = + kcalloc(ec->items, sizeof(char *), GFP_KERNEL); + if (se->dobj.control.dtexts == NULL) + return -ENOMEM; + + for (i = 0; i < ec->items; i++) { + + if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { + ret = -EINVAL; + goto err; + } + + se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); + if (!se->dobj.control.dtexts[i]) { + ret = -ENOMEM; + goto err; + } + } + + se->texts = (const char * const *)se->dobj.control.dtexts; + return 0; + +err: + for (--i; i >= 0; i--) + kfree(se->dobj.control.dtexts[i]); + kfree(se->dobj.control.dtexts); + return ret; +} + +static int soc_tplg_denum_create_values(struct soc_enum *se, + struct snd_soc_tplg_enum_control *ec) +{ + if (ec->items > sizeof(*ec->values)) + return -EINVAL; + + se->dobj.control.dvalues = kmemdup(ec->values, + ec->items * sizeof(u32), + GFP_KERNEL); + if (!se->dobj.control.dvalues) + return -ENOMEM; + + return 0; +} + +static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, + size_t size) +{ + struct snd_soc_tplg_enum_control *ec; + struct soc_enum *se; + struct snd_kcontrol_new kc; + int i, ret, err; + + if (soc_tplg_check_elem_count(tplg, + sizeof(struct snd_soc_tplg_enum_control), + count, size, "enums")) { + + dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", + count); + return -EINVAL; + } + + for (i = 0; i < count; i++) { + ec = (struct snd_soc_tplg_enum_control *)tplg->pos; + tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + + ec->priv.size); + + /* validate kcontrol */ + if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + + se = kzalloc((sizeof(*se)), GFP_KERNEL); + if (se == NULL) + return -ENOMEM; + + dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", + ec->hdr.name, ec->items); + + memset(&kc, 0, sizeof(kc)); + kc.name = ec->hdr.name; + kc.private_value = (long)se; + kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + kc.access = ec->hdr.access; + + se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); + se->shift_l = tplc_chan_get_shift(tplg, ec->channel, + SNDRV_CHMAP_FL); + se->shift_r = tplc_chan_get_shift(tplg, ec->channel, + SNDRV_CHMAP_FL); + + se->items = ec->items; + se->mask = ec->mask; + se->dobj.index = tplg->index; + se->dobj.type = SND_SOC_DOBJ_ENUM; + se->dobj.ops = tplg->ops; + INIT_LIST_HEAD(&se->dobj.list); + + switch (ec->hdr.ops.info) { + case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: + case SND_SOC_TPLG_CTL_ENUM_VALUE: + err = soc_tplg_denum_create_values(se, ec); + if (err < 0) { + dev_err(tplg->dev, + "ASoC: could not create values for %s\n", + ec->hdr.name); + kfree(se); + continue; + } + /* fall through and create texts */ + case SND_SOC_TPLG_CTL_ENUM: + case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: + case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: + err = soc_tplg_denum_create_texts(se, ec); + if (err < 0) { + dev_err(tplg->dev, + "ASoC: could not create texts for %s\n", + ec->hdr.name); + kfree(se); + continue; + } + break; + default: + dev_err(tplg->dev, + "ASoC: invalid enum control type %d for %s\n", + ec->hdr.ops.info, ec->hdr.name); + kfree(se); + continue; + } + + /* map io handlers */ + err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); + if (err) { + soc_control_err(tplg, &ec->hdr, ec->hdr.name); + kfree(se); + continue; + } + + /* pass control to driver for optional further init */ + err = soc_tplg_init_kcontrol(tplg, &kc, + (struct snd_soc_tplg_ctl_hdr *) ec); + if (err < 0) { + dev_err(tplg->dev, "ASoC: failed to init %s\n", + ec->hdr.name); + kfree(se); + continue; + } + + /* register control here */ + ret = soc_tplg_add_kcontrol(tplg, + &kc, &se->dobj.control.kcontrol); + if (ret < 0) { + dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", + ec->hdr.name); + kfree(se); + continue; + } + + list_add(&se->dobj.list, &tplg->comp->dobj_list); + } + + return 0; +} + +static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + struct snd_soc_tplg_ctl_hdr *control_hdr; + int i; + + if (tplg->pass != SOC_TPLG_PASS_MIXER) { + tplg->pos += hdr->size + hdr->payload_size; + return 0; + } + + dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, + soc_tplg_get_offset(tplg)); + + for (i = 0; i < hdr->count; i++) { + + control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; + + if (control_hdr->size != sizeof(*control_hdr)) { + dev_err(tplg->dev, "ASoC: invalid control size\n"); + return -EINVAL; + } + + switch (control_hdr->ops.info) { + case SND_SOC_TPLG_CTL_VOLSW: + case SND_SOC_TPLG_CTL_STROBE: + case SND_SOC_TPLG_CTL_VOLSW_SX: + case SND_SOC_TPLG_CTL_VOLSW_XR_SX: + case SND_SOC_TPLG_CTL_RANGE: + case SND_SOC_TPLG_DAPM_CTL_VOLSW: + case SND_SOC_TPLG_DAPM_CTL_PIN: + soc_tplg_dmixer_create(tplg, 1, hdr->payload_size); + break; + case SND_SOC_TPLG_CTL_ENUM: + case SND_SOC_TPLG_CTL_ENUM_VALUE: + case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: + case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: + case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: + soc_tplg_denum_create(tplg, 1, hdr->payload_size); + break; + case SND_SOC_TPLG_CTL_BYTES: + soc_tplg_dbytes_create(tplg, 1, hdr->payload_size); + break; + default: + soc_bind_err(tplg, control_hdr, i); + return -EINVAL; + } + } + + return 0; +} + +/* optionally pass new dynamic kcontrol to component driver. */ +static int soc_tplg_add_route(struct soc_tplg *tplg, + struct snd_soc_dapm_route *route) +{ + if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load) + return tplg->ops->dapm_route_load(tplg->comp, tplg->index, + route); + + return 0; +} + +static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; + struct snd_soc_dapm_route route; + struct snd_soc_tplg_dapm_graph_elem *elem; + int count = hdr->count, i; + + if (tplg->pass != SOC_TPLG_PASS_GRAPH) { + tplg->pos += hdr->size + hdr->payload_size; + return 0; + } + + if (soc_tplg_check_elem_count(tplg, + sizeof(struct snd_soc_tplg_dapm_graph_elem), + count, hdr->payload_size, "graph")) { + + dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", + count); + return -EINVAL; + } + + dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, + hdr->index); + + for (i = 0; i < count; i++) { + elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; + tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); + + /* validate routes */ + if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + + route.source = elem->source; + route.sink = elem->sink; + route.connected = NULL; /* set to NULL atm for tplg users */ + if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) + route.control = NULL; + else + route.control = elem->control; + + soc_tplg_add_route(tplg, &route); + + /* add route, but keep going if some fail */ + snd_soc_dapm_add_routes(dapm, &route, 1); + } + + return 0; +} + +static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( + struct soc_tplg *tplg, int num_kcontrols) +{ + struct snd_kcontrol_new *kc; + struct soc_mixer_control *sm; + struct snd_soc_tplg_mixer_control *mc; + int i, err; + + kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); + if (kc == NULL) + return NULL; + + for (i = 0; i < num_kcontrols; i++) { + mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; + sm = kzalloc(sizeof(*sm), GFP_KERNEL); + if (sm == NULL) + goto err; + + tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + + mc->priv.size); + + /* validate kcontrol */ + if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + goto err_str; + + dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", + mc->hdr.name, i); + + kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL); + if (kc[i].name == NULL) + goto err_str; + kc[i].private_value = (long)sm; + kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; + kc[i].access = mc->hdr.access; + + /* we only support FL/FR channel mapping atm */ + sm->reg = tplc_chan_get_reg(tplg, mc->channel, + SNDRV_CHMAP_FL); + sm->rreg = tplc_chan_get_reg(tplg, mc->channel, + SNDRV_CHMAP_FR); + sm->shift = tplc_chan_get_shift(tplg, mc->channel, + SNDRV_CHMAP_FL); + sm->rshift = tplc_chan_get_shift(tplg, mc->channel, + SNDRV_CHMAP_FR); + + sm->max = mc->max; + sm->min = mc->min; + sm->invert = mc->invert; + sm->platform_max = mc->platform_max; + sm->dobj.index = tplg->index; + INIT_LIST_HEAD(&sm->dobj.list); + + /* map io handlers */ + err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); + if (err) { + soc_control_err(tplg, &mc->hdr, mc->hdr.name); + kfree(sm); + continue; + } + + /* pass control to driver for optional further init */ + err = soc_tplg_init_kcontrol(tplg, &kc[i], + (struct snd_soc_tplg_ctl_hdr *)mc); + if (err < 0) { + dev_err(tplg->dev, "ASoC: failed to init %s\n", + mc->hdr.name); + kfree(sm); + continue; + } + + /* create any TLV data */ + soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr); + } + return kc; + +err_str: + kfree(sm); +err: + for (--i; i >= 0; i--) { + kfree((void *)kc[i].private_value); + kfree(kc[i].name); + } + kfree(kc); + return NULL; +} + +static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( + struct soc_tplg *tplg, int num_kcontrols) +{ + struct snd_kcontrol_new *kc; + struct snd_soc_tplg_enum_control *ec; + struct soc_enum *se; + int i, j, err; + + kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); + if (kc == NULL) + return NULL; + + for (i = 0; i < num_kcontrols; i++) { + ec = (struct snd_soc_tplg_enum_control *)tplg->pos; + /* validate kcontrol */ + if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + goto err; + + se = kzalloc(sizeof(*se), GFP_KERNEL); + if (se == NULL) + goto err; + + dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", + ec->hdr.name); + + kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL); + if (kc[i].name == NULL) { + kfree(se); + goto err_se; + } + kc[i].private_value = (long)se; + kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; + kc[i].access = ec->hdr.access; + + /* we only support FL/FR channel mapping atm */ + se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); + se->shift_l = tplc_chan_get_shift(tplg, ec->channel, + SNDRV_CHMAP_FL); + se->shift_r = tplc_chan_get_shift(tplg, ec->channel, + SNDRV_CHMAP_FR); + + se->items = ec->items; + se->mask = ec->mask; + se->dobj.index = tplg->index; + + switch (ec->hdr.ops.info) { + case SND_SOC_TPLG_CTL_ENUM_VALUE: + case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: + err = soc_tplg_denum_create_values(se, ec); + if (err < 0) { + dev_err(tplg->dev, "ASoC: could not create values for %s\n", + ec->hdr.name); + goto err_se; + } + /* fall through to create texts */ + case SND_SOC_TPLG_CTL_ENUM: + case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: + case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: + err = soc_tplg_denum_create_texts(se, ec); + if (err < 0) { + dev_err(tplg->dev, "ASoC: could not create texts for %s\n", + ec->hdr.name); + goto err_se; + } + break; + default: + dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", + ec->hdr.ops.info, ec->hdr.name); + goto err_se; + } + + /* map io handlers */ + err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); + if (err) { + soc_control_err(tplg, &ec->hdr, ec->hdr.name); + goto err_se; + } + + /* pass control to driver for optional further init */ + err = soc_tplg_init_kcontrol(tplg, &kc[i], + (struct snd_soc_tplg_ctl_hdr *)ec); + if (err < 0) { + dev_err(tplg->dev, "ASoC: failed to init %s\n", + ec->hdr.name); + goto err_se; + } + + tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + + ec->priv.size); + } + + return kc; + +err_se: + for (; i >= 0; i--) { + /* free values and texts */ + se = (struct soc_enum *)kc[i].private_value; + if (!se) + continue; + + kfree(se->dobj.control.dvalues); + for (j = 0; j < ec->items; j++) + kfree(se->dobj.control.dtexts[j]); + + kfree(se); + kfree(kc[i].name); + } +err: + kfree(kc); + + return NULL; +} + +static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( + struct soc_tplg *tplg, int count) +{ + struct snd_soc_tplg_bytes_control *be; + struct soc_bytes_ext *sbe; + struct snd_kcontrol_new *kc; + int i, err; + + kc = kcalloc(count, sizeof(*kc), GFP_KERNEL); + if (!kc) + return NULL; + + for (i = 0; i < count; i++) { + be = (struct snd_soc_tplg_bytes_control *)tplg->pos; + + /* validate kcontrol */ + if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + goto err; + + sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); + if (sbe == NULL) + goto err; + + tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + + be->priv.size); + + dev_dbg(tplg->dev, + "ASoC: adding bytes kcontrol %s with access 0x%x\n", + be->hdr.name, be->hdr.access); + + kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL); + if (kc[i].name == NULL) { + kfree(sbe); + goto err; + } + kc[i].private_value = (long)sbe; + kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; + kc[i].access = be->hdr.access; + + sbe->max = be->max; + INIT_LIST_HEAD(&sbe->dobj.list); + + /* map standard io handlers and check for external handlers */ + err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); + if (err) { + soc_control_err(tplg, &be->hdr, be->hdr.name); + kfree(sbe); + continue; + } + + /* pass control to driver for optional further init */ + err = soc_tplg_init_kcontrol(tplg, &kc[i], + (struct snd_soc_tplg_ctl_hdr *)be); + if (err < 0) { + dev_err(tplg->dev, "ASoC: failed to init %s\n", + be->hdr.name); + kfree(sbe); + continue; + } + } + + return kc; + +err: + for (--i; i >= 0; i--) { + kfree((void *)kc[i].private_value); + kfree(kc[i].name); + } + + kfree(kc); + return NULL; +} + +static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, + struct snd_soc_tplg_dapm_widget *w) +{ + struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; + struct snd_soc_dapm_widget template, *widget; + struct snd_soc_tplg_ctl_hdr *control_hdr; + struct snd_soc_card *card = tplg->comp->card; + unsigned int kcontrol_type; + int ret = 0; + + if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == + SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + + dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", + w->name, w->id); + + memset(&template, 0, sizeof(template)); + + /* map user to kernel widget ID */ + template.id = get_widget_id(w->id); + if (template.id < 0) + return template.id; + + /* strings are allocated here, but used and freed by the widget */ + template.name = kstrdup(w->name, GFP_KERNEL); + if (!template.name) + return -ENOMEM; + template.sname = kstrdup(w->sname, GFP_KERNEL); + if (!template.sname) { + ret = -ENOMEM; + goto err; + } + template.reg = w->reg; + template.shift = w->shift; + template.mask = w->mask; + template.subseq = w->subseq; + template.on_val = w->invert ? 0 : 1; + template.off_val = w->invert ? 1 : 0; + template.ignore_suspend = w->ignore_suspend; + template.event_flags = w->event_flags; + template.dobj.index = tplg->index; + + tplg->pos += + (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size); + if (w->num_kcontrols == 0) { + kcontrol_type = 0; + template.num_kcontrols = 0; + goto widget; + } + + control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; + dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", + w->name, w->num_kcontrols, control_hdr->type); + + switch (control_hdr->ops.info) { + case SND_SOC_TPLG_CTL_VOLSW: + case SND_SOC_TPLG_CTL_STROBE: + case SND_SOC_TPLG_CTL_VOLSW_SX: + case SND_SOC_TPLG_CTL_VOLSW_XR_SX: + case SND_SOC_TPLG_CTL_RANGE: + case SND_SOC_TPLG_DAPM_CTL_VOLSW: + kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ + template.num_kcontrols = w->num_kcontrols; + template.kcontrol_news = + soc_tplg_dapm_widget_dmixer_create(tplg, + template.num_kcontrols); + if (!template.kcontrol_news) { + ret = -ENOMEM; + goto hdr_err; + } + break; + case SND_SOC_TPLG_CTL_ENUM: + case SND_SOC_TPLG_CTL_ENUM_VALUE: + case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: + case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: + case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: + kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ + template.num_kcontrols = w->num_kcontrols; + template.kcontrol_news = + soc_tplg_dapm_widget_denum_create(tplg, + template.num_kcontrols); + if (!template.kcontrol_news) { + ret = -ENOMEM; + goto hdr_err; + } + break; + case SND_SOC_TPLG_CTL_BYTES: + kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ + template.num_kcontrols = w->num_kcontrols; + template.kcontrol_news = + soc_tplg_dapm_widget_dbytes_create(tplg, + template.num_kcontrols); + if (!template.kcontrol_news) { + ret = -ENOMEM; + goto hdr_err; + } + break; + default: + dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", + control_hdr->ops.get, control_hdr->ops.put, + control_hdr->ops.info); + ret = -EINVAL; + goto hdr_err; + } + +widget: + ret = soc_tplg_widget_load(tplg, &template, w); + if (ret < 0) + goto hdr_err; + + /* card dapm mutex is held by the core if we are loading topology + * data during sound card init. */ + if (card->instantiated) + widget = snd_soc_dapm_new_control(dapm, &template); + else + widget = snd_soc_dapm_new_control_unlocked(dapm, &template); + if (IS_ERR(widget)) { + ret = PTR_ERR(widget); + /* Do not nag about probe deferrals */ + if (ret != -EPROBE_DEFER) + dev_err(tplg->dev, + "ASoC: failed to create widget %s controls (%d)\n", + w->name, ret); + goto hdr_err; + } + if (widget == NULL) { + dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", + w->name); + ret = -ENOMEM; + goto hdr_err; + } + + widget->dobj.type = SND_SOC_DOBJ_WIDGET; + widget->dobj.widget.kcontrol_type = kcontrol_type; + widget->dobj.ops = tplg->ops; + widget->dobj.index = tplg->index; + list_add(&widget->dobj.list, &tplg->comp->dobj_list); + + ret = soc_tplg_widget_ready(tplg, widget, w); + if (ret < 0) + goto ready_err; + + return 0; + +ready_err: + snd_soc_tplg_widget_remove(widget); + snd_soc_dapm_free_widget(widget); +hdr_err: + kfree(template.sname); +err: + kfree(template.name); + return ret; +} + +static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + struct snd_soc_tplg_dapm_widget *widget; + int ret, count = hdr->count, i; + + if (tplg->pass != SOC_TPLG_PASS_WIDGET) + return 0; + + dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); + + for (i = 0; i < count; i++) { + widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; + if (widget->size != sizeof(*widget)) { + dev_err(tplg->dev, "ASoC: invalid widget size\n"); + return -EINVAL; + } + + ret = soc_tplg_dapm_widget_create(tplg, widget); + if (ret < 0) { + dev_err(tplg->dev, "ASoC: failed to load widget %s\n", + widget->name); + return ret; + } + } + + return 0; +} + +static int soc_tplg_dapm_complete(struct soc_tplg *tplg) +{ + struct snd_soc_card *card = tplg->comp->card; + int ret; + + /* Card might not have been registered at this point. + * If so, just return success. + */ + if (!card || !card->instantiated) { + dev_warn(tplg->dev, "ASoC: Parent card not yet available," + " widget card binding deferred\n"); + return 0; + } + + ret = snd_soc_dapm_new_widgets(card); + if (ret < 0) + dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", + ret); + + return 0; +} + +static void set_stream_info(struct snd_soc_pcm_stream *stream, + struct snd_soc_tplg_stream_caps *caps) +{ + stream->stream_name = kstrdup(caps->name, GFP_KERNEL); + stream->channels_min = caps->channels_min; + stream->channels_max = caps->channels_max; + stream->rates = caps->rates; + stream->rate_min = caps->rate_min; + stream->rate_max = caps->rate_max; + stream->formats = caps->formats; + stream->sig_bits = caps->sig_bits; +} + +static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, + unsigned int flag_mask, unsigned int flags) +{ + if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) + dai_drv->symmetric_rates = + flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; + + if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) + dai_drv->symmetric_channels = + flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? + 1 : 0; + + if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) + dai_drv->symmetric_samplebits = + flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? + 1 : 0; +} + +static int soc_tplg_dai_create(struct soc_tplg *tplg, + struct snd_soc_tplg_pcm *pcm) +{ + struct snd_soc_dai_driver *dai_drv; + struct snd_soc_pcm_stream *stream; + struct snd_soc_tplg_stream_caps *caps; + int ret; + + dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); + if (dai_drv == NULL) + return -ENOMEM; + + if (strlen(pcm->dai_name)) + dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); + dai_drv->id = pcm->dai_id; + + if (pcm->playback) { + stream = &dai_drv->playback; + caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; + set_stream_info(stream, caps); + } + + if (pcm->capture) { + stream = &dai_drv->capture; + caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; + set_stream_info(stream, caps); + } + + if (pcm->compress) + dai_drv->compress_new = snd_soc_new_compress; + + /* pass control to component driver for optional further init */ + ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); + if (ret < 0) { + dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); + kfree(dai_drv); + return ret; + } + + dai_drv->dobj.index = tplg->index; + dai_drv->dobj.ops = tplg->ops; + dai_drv->dobj.type = SND_SOC_DOBJ_PCM; + list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); + + /* register the DAI to the component */ + return snd_soc_register_dai(tplg->comp, dai_drv); +} + +static void set_link_flags(struct snd_soc_dai_link *link, + unsigned int flag_mask, unsigned int flags) +{ + if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) + link->symmetric_rates = + flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; + + if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) + link->symmetric_channels = + flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? + 1 : 0; + + if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) + link->symmetric_samplebits = + flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? + 1 : 0; + + if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) + link->ignore_suspend = + flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? + 1 : 0; +} + +/* create the FE DAI link */ +static int soc_tplg_fe_link_create(struct soc_tplg *tplg, + struct snd_soc_tplg_pcm *pcm) +{ + struct snd_soc_dai_link *link; + int ret; + + link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL); + if (link == NULL) + return -ENOMEM; + + if (strlen(pcm->pcm_name)) { + link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); + link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); + } + link->id = pcm->pcm_id; + + if (strlen(pcm->dai_name)) + link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); + + link->codec_name = "snd-soc-dummy"; + link->codec_dai_name = "snd-soc-dummy-dai"; + + /* enable DPCM */ + link->dynamic = 1; + link->dpcm_playback = pcm->playback; + link->dpcm_capture = pcm->capture; + if (pcm->flag_mask) + set_link_flags(link, pcm->flag_mask, pcm->flags); + + /* pass control to component driver for optional further init */ + ret = soc_tplg_dai_link_load(tplg, link, NULL); + if (ret < 0) { + dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); + kfree(link); + return ret; + } + + link->dobj.index = tplg->index; + link->dobj.ops = tplg->ops; + link->dobj.type = SND_SOC_DOBJ_DAI_LINK; + list_add(&link->dobj.list, &tplg->comp->dobj_list); + + snd_soc_add_dai_link(tplg->comp->card, link); + return 0; +} + +/* create a FE DAI and DAI link from the PCM object */ +static int soc_tplg_pcm_create(struct soc_tplg *tplg, + struct snd_soc_tplg_pcm *pcm) +{ + int ret; + + ret = soc_tplg_dai_create(tplg, pcm); + if (ret < 0) + return ret; + + return soc_tplg_fe_link_create(tplg, pcm); +} + +/* copy stream caps from the old version 4 of source */ +static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, + struct snd_soc_tplg_stream_caps_v4 *src) +{ + dest->size = sizeof(*dest); + memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); + dest->formats = src->formats; + dest->rates = src->rates; + dest->rate_min = src->rate_min; + dest->rate_max = src->rate_max; + dest->channels_min = src->channels_min; + dest->channels_max = src->channels_max; + dest->periods_min = src->periods_min; + dest->periods_max = src->periods_max; + dest->period_size_min = src->period_size_min; + dest->period_size_max = src->period_size_max; + dest->buffer_size_min = src->buffer_size_min; + dest->buffer_size_max = src->buffer_size_max; +} + +/** + * pcm_new_ver - Create the new version of PCM from the old version. + * @tplg: topology context + * @src: older version of pcm as a source + * @pcm: latest version of pcm created from the source + * + * Support from vesion 4. User should free the returned pcm manually. + */ +static int pcm_new_ver(struct soc_tplg *tplg, + struct snd_soc_tplg_pcm *src, + struct snd_soc_tplg_pcm **pcm) +{ + struct snd_soc_tplg_pcm *dest; + struct snd_soc_tplg_pcm_v4 *src_v4; + int i; + + *pcm = NULL; + + if (src->size != sizeof(*src_v4)) { + dev_err(tplg->dev, "ASoC: invalid PCM size\n"); + return -EINVAL; + } + + dev_warn(tplg->dev, "ASoC: old version of PCM\n"); + src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; + dest = kzalloc(sizeof(*dest), GFP_KERNEL); + if (!dest) + return -ENOMEM; + + dest->size = sizeof(*dest); /* size of latest abi version */ + memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); + memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); + dest->pcm_id = src_v4->pcm_id; + dest->dai_id = src_v4->dai_id; + dest->playback = src_v4->playback; + dest->capture = src_v4->capture; + dest->compress = src_v4->compress; + dest->num_streams = src_v4->num_streams; + for (i = 0; i < dest->num_streams; i++) + memcpy(&dest->stream[i], &src_v4->stream[i], + sizeof(struct snd_soc_tplg_stream)); + + for (i = 0; i < 2; i++) + stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); + + *pcm = dest; + return 0; +} + +static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + struct snd_soc_tplg_pcm *pcm, *_pcm; + int count = hdr->count; + int i; + bool abi_match; + int ret; + + if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) + return 0; + + /* check the element size and count */ + pcm = (struct snd_soc_tplg_pcm *)tplg->pos; + if (pcm->size > sizeof(struct snd_soc_tplg_pcm) + || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) { + dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", + pcm->size); + return -EINVAL; + } + + if (soc_tplg_check_elem_count(tplg, + pcm->size, count, + hdr->payload_size, "PCM DAI")) { + dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", + count); + return -EINVAL; + } + + for (i = 0; i < count; i++) { + pcm = (struct snd_soc_tplg_pcm *)tplg->pos; + + /* check ABI version by size, create a new version of pcm + * if abi not match. + */ + if (pcm->size == sizeof(*pcm)) { + abi_match = true; + _pcm = pcm; + } else { + abi_match = false; + ret = pcm_new_ver(tplg, pcm, &_pcm); + if (ret < 0) + return ret; + } + + /* create the FE DAIs and DAI links */ + ret = soc_tplg_pcm_create(tplg, _pcm); + if (ret < 0) { + if (!abi_match) + kfree(_pcm); + return ret; + } + + /* offset by version-specific struct size and + * real priv data size + */ + tplg->pos += pcm->size + _pcm->priv.size; + + if (!abi_match) + kfree(_pcm); /* free the duplicated one */ + } + + dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); + + return 0; +} + +/** + * set_link_hw_format - Set the HW audio format of the physical DAI link. + * @link: &snd_soc_dai_link which should be updated + * @cfg: physical link configs. + * + * Topology context contains a list of supported HW formats (configs) and + * a default format ID for the physical link. This function will use this + * default ID to choose the HW format to set the link's DAI format for init. + */ +static void set_link_hw_format(struct snd_soc_dai_link *link, + struct snd_soc_tplg_link_config *cfg) +{ + struct snd_soc_tplg_hw_config *hw_config; + unsigned char bclk_master, fsync_master; + unsigned char invert_bclk, invert_fsync; + int i; + + for (i = 0; i < cfg->num_hw_configs; i++) { + hw_config = &cfg->hw_config[i]; + if (hw_config->id != cfg->default_hw_config_id) + continue; + + link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK; + + /* clock gating */ + switch (hw_config->clock_gated) { + case SND_SOC_TPLG_DAI_CLK_GATE_GATED: + link->dai_fmt |= SND_SOC_DAIFMT_GATED; + break; + + case SND_SOC_TPLG_DAI_CLK_GATE_CONT: + link->dai_fmt |= SND_SOC_DAIFMT_CONT; + break; + + default: + /* ignore the value */ + break; + } + + /* clock signal polarity */ + invert_bclk = hw_config->invert_bclk; + invert_fsync = hw_config->invert_fsync; + if (!invert_bclk && !invert_fsync) + link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; + else if (!invert_bclk && invert_fsync) + link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; + else if (invert_bclk && !invert_fsync) + link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; + else + link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; + + /* clock masters */ + bclk_master = (hw_config->bclk_master == + SND_SOC_TPLG_BCLK_CM); + fsync_master = (hw_config->fsync_master == + SND_SOC_TPLG_FSYNC_CM); + if (bclk_master && fsync_master) + link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; + else if (!bclk_master && fsync_master) + link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; + else if (bclk_master && !fsync_master) + link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; + else + link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; + } +} + +/** + * link_new_ver - Create a new physical link config from the old + * version of source. + * @tplg: topology context + * @src: old version of phyical link config as a source + * @link: latest version of physical link config created from the source + * + * Support from vesion 4. User need free the returned link config manually. + */ +static int link_new_ver(struct soc_tplg *tplg, + struct snd_soc_tplg_link_config *src, + struct snd_soc_tplg_link_config **link) +{ + struct snd_soc_tplg_link_config *dest; + struct snd_soc_tplg_link_config_v4 *src_v4; + int i; + + *link = NULL; + + if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) { + dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); + return -EINVAL; + } + + dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); + + src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; + dest = kzalloc(sizeof(*dest), GFP_KERNEL); + if (!dest) + return -ENOMEM; + + dest->size = sizeof(*dest); + dest->id = src_v4->id; + dest->num_streams = src_v4->num_streams; + for (i = 0; i < dest->num_streams; i++) + memcpy(&dest->stream[i], &src_v4->stream[i], + sizeof(struct snd_soc_tplg_stream)); + + *link = dest; + return 0; +} + +/* Find and configure an existing physical DAI link */ +static int soc_tplg_link_config(struct soc_tplg *tplg, + struct snd_soc_tplg_link_config *cfg) +{ + struct snd_soc_dai_link *link; + const char *name, *stream_name; + size_t len; + int ret; + + len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); + if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + else if (len) + name = cfg->name; + else + name = NULL; + + len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); + if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) + return -EINVAL; + else if (len) + stream_name = cfg->stream_name; + else + stream_name = NULL; + + link = snd_soc_find_dai_link(tplg->comp->card, cfg->id, + name, stream_name); + if (!link) { + dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", + name, cfg->id); + return -EINVAL; + } + + /* hw format */ + if (cfg->num_hw_configs) + set_link_hw_format(link, cfg); + + /* flags */ + if (cfg->flag_mask) + set_link_flags(link, cfg->flag_mask, cfg->flags); + + /* pass control to component driver for optional further init */ + ret = soc_tplg_dai_link_load(tplg, link, cfg); + if (ret < 0) { + dev_err(tplg->dev, "ASoC: physical link loading failed\n"); + return ret; + } + + return 0; +} + + +/* Load physical link config elements from the topology context */ +static int soc_tplg_link_elems_load(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + struct snd_soc_tplg_link_config *link, *_link; + int count = hdr->count; + int i, ret; + bool abi_match; + + if (tplg->pass != SOC_TPLG_PASS_LINK) { + tplg->pos += hdr->size + hdr->payload_size; + return 0; + }; + + /* check the element size and count */ + link = (struct snd_soc_tplg_link_config *)tplg->pos; + if (link->size > sizeof(struct snd_soc_tplg_link_config) + || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) { + dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", + link->size); + return -EINVAL; + } + + if (soc_tplg_check_elem_count(tplg, + link->size, count, + hdr->payload_size, "physical link config")) { + dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", + count); + return -EINVAL; + } + + /* config physical DAI links */ + for (i = 0; i < count; i++) { + link = (struct snd_soc_tplg_link_config *)tplg->pos; + if (link->size == sizeof(*link)) { + abi_match = true; + _link = link; + } else { + abi_match = false; + ret = link_new_ver(tplg, link, &_link); + if (ret < 0) + return ret; + } + + ret = soc_tplg_link_config(tplg, _link); + if (ret < 0) { + if (!abi_match) + kfree(_link); + return ret; + } + + /* offset by version-specific struct size and + * real priv data size + */ + tplg->pos += link->size + _link->priv.size; + + if (!abi_match) + kfree(_link); /* free the duplicated one */ + } + + return 0; +} + +/** + * soc_tplg_dai_config - Find and configure an existing physical DAI. + * @tplg: topology context + * @d: physical DAI configs. + * + * The physical dai should already be registered by the platform driver. + * The platform driver should specify the DAI name and ID for matching. + */ +static int soc_tplg_dai_config(struct soc_tplg *tplg, + struct snd_soc_tplg_dai *d) +{ + struct snd_soc_dai_link_component dai_component = {0}; + struct snd_soc_dai *dai; + struct snd_soc_dai_driver *dai_drv; + struct snd_soc_pcm_stream *stream; + struct snd_soc_tplg_stream_caps *caps; + int ret; + + dai_component.dai_name = d->dai_name; + dai = snd_soc_find_dai(&dai_component); + if (!dai) { + dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", + d->dai_name); + return -EINVAL; + } + + if (d->dai_id != dai->id) { + dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", + d->dai_name); + return -EINVAL; + } + + dai_drv = dai->driver; + if (!dai_drv) + return -EINVAL; + + if (d->playback) { + stream = &dai_drv->playback; + caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; + set_stream_info(stream, caps); + } + + if (d->capture) { + stream = &dai_drv->capture; + caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; + set_stream_info(stream, caps); + } + + if (d->flag_mask) + set_dai_flags(dai_drv, d->flag_mask, d->flags); + + /* pass control to component driver for optional further init */ + ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); + if (ret < 0) { + dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); + return ret; + } + + return 0; +} + +/* load physical DAI elements */ +static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + struct snd_soc_tplg_dai *dai; + int count = hdr->count; + int i; + + if (tplg->pass != SOC_TPLG_PASS_BE_DAI) + return 0; + + /* config the existing BE DAIs */ + for (i = 0; i < count; i++) { + dai = (struct snd_soc_tplg_dai *)tplg->pos; + if (dai->size != sizeof(*dai)) { + dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); + return -EINVAL; + } + + soc_tplg_dai_config(tplg, dai); + tplg->pos += (sizeof(*dai) + dai->priv.size); + } + + dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); + return 0; +} + +/** + * manifest_new_ver - Create a new version of manifest from the old version + * of source. + * @tplg: topology context + * @src: old version of manifest as a source + * @manifest: latest version of manifest created from the source + * + * Support from vesion 4. Users need free the returned manifest manually. + */ +static int manifest_new_ver(struct soc_tplg *tplg, + struct snd_soc_tplg_manifest *src, + struct snd_soc_tplg_manifest **manifest) +{ + struct snd_soc_tplg_manifest *dest; + struct snd_soc_tplg_manifest_v4 *src_v4; + + *manifest = NULL; + + if (src->size != sizeof(*src_v4)) { + dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", + src->size); + if (src->size) + return -EINVAL; + src->size = sizeof(*src_v4); + } + + dev_warn(tplg->dev, "ASoC: old version of manifest\n"); + + src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; + dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL); + if (!dest) + return -ENOMEM; + + dest->size = sizeof(*dest); /* size of latest abi version */ + dest->control_elems = src_v4->control_elems; + dest->widget_elems = src_v4->widget_elems; + dest->graph_elems = src_v4->graph_elems; + dest->pcm_elems = src_v4->pcm_elems; + dest->dai_link_elems = src_v4->dai_link_elems; + dest->priv.size = src_v4->priv.size; + if (dest->priv.size) + memcpy(dest->priv.data, src_v4->priv.data, + src_v4->priv.size); + + *manifest = dest; + return 0; +} + +static int soc_tplg_manifest_load(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + struct snd_soc_tplg_manifest *manifest, *_manifest; + bool abi_match; + int ret = 0; + + if (tplg->pass != SOC_TPLG_PASS_MANIFEST) + return 0; + + manifest = (struct snd_soc_tplg_manifest *)tplg->pos; + + /* check ABI version by size, create a new manifest if abi not match */ + if (manifest->size == sizeof(*manifest)) { + abi_match = true; + _manifest = manifest; + } else { + abi_match = false; + ret = manifest_new_ver(tplg, manifest, &_manifest); + if (ret < 0) + return ret; + } + + /* pass control to component driver for optional further init */ + if (tplg->comp && tplg->ops && tplg->ops->manifest) + ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); + + if (!abi_match) /* free the duplicated one */ + kfree(_manifest); + + return ret; +} + +/* validate header magic, size and type */ +static int soc_valid_header(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) + return 0; + + if (hdr->size != sizeof(*hdr)) { + dev_err(tplg->dev, + "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", + hdr->type, soc_tplg_get_hdr_offset(tplg), + tplg->fw->size); + return -EINVAL; + } + + /* big endian firmware objects not supported atm */ + if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) { + dev_err(tplg->dev, + "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", + tplg->pass, hdr->magic, + soc_tplg_get_hdr_offset(tplg), tplg->fw->size); + return -EINVAL; + } + + if (hdr->magic != SND_SOC_TPLG_MAGIC) { + dev_err(tplg->dev, + "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", + tplg->pass, hdr->magic, + soc_tplg_get_hdr_offset(tplg), tplg->fw->size); + return -EINVAL; + } + + /* Support ABI from version 4 */ + if (hdr->abi > SND_SOC_TPLG_ABI_VERSION + || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) { + dev_err(tplg->dev, + "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", + tplg->pass, hdr->abi, + SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), + tplg->fw->size); + return -EINVAL; + } + + if (hdr->payload_size == 0) { + dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", + soc_tplg_get_hdr_offset(tplg)); + return -EINVAL; + } + + if (tplg->pass == hdr->type) + dev_dbg(tplg->dev, + "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", + hdr->payload_size, hdr->type, hdr->version, + hdr->vendor_type, tplg->pass); + + return 1; +} + +/* check header type and call appropriate handler */ +static int soc_tplg_load_header(struct soc_tplg *tplg, + struct snd_soc_tplg_hdr *hdr) +{ + tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); + + /* check for matching ID */ + if (hdr->index != tplg->req_index && + tplg->req_index != SND_SOC_TPLG_INDEX_ALL) + return 0; + + tplg->index = hdr->index; + + switch (hdr->type) { + case SND_SOC_TPLG_TYPE_MIXER: + case SND_SOC_TPLG_TYPE_ENUM: + case SND_SOC_TPLG_TYPE_BYTES: + return soc_tplg_kcontrol_elems_load(tplg, hdr); + case SND_SOC_TPLG_TYPE_DAPM_GRAPH: + return soc_tplg_dapm_graph_elems_load(tplg, hdr); + case SND_SOC_TPLG_TYPE_DAPM_WIDGET: + return soc_tplg_dapm_widget_elems_load(tplg, hdr); + case SND_SOC_TPLG_TYPE_PCM: + return soc_tplg_pcm_elems_load(tplg, hdr); + case SND_SOC_TPLG_TYPE_DAI: + return soc_tplg_dai_elems_load(tplg, hdr); + case SND_SOC_TPLG_TYPE_DAI_LINK: + case SND_SOC_TPLG_TYPE_BACKEND_LINK: + /* physical link configurations */ + return soc_tplg_link_elems_load(tplg, hdr); + case SND_SOC_TPLG_TYPE_MANIFEST: + return soc_tplg_manifest_load(tplg, hdr); + default: + /* bespoke vendor data object */ + return soc_tplg_vendor_load(tplg, hdr); + } + + return 0; +} + +/* process the topology file headers */ +static int soc_tplg_process_headers(struct soc_tplg *tplg) +{ + struct snd_soc_tplg_hdr *hdr; + int ret; + + tplg->pass = SOC_TPLG_PASS_START; + + /* process the header types from start to end */ + while (tplg->pass <= SOC_TPLG_PASS_END) { + + tplg->hdr_pos = tplg->fw->data; + hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; + + while (!soc_tplg_is_eof(tplg)) { + + /* make sure header is valid before loading */ + ret = soc_valid_header(tplg, hdr); + if (ret < 0) + return ret; + else if (ret == 0) + break; + + /* load the header object */ + ret = soc_tplg_load_header(tplg, hdr); + if (ret < 0) + return ret; + + /* goto next header */ + tplg->hdr_pos += hdr->payload_size + + sizeof(struct snd_soc_tplg_hdr); + hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; + } + + /* next data type pass */ + tplg->pass++; + } + + /* signal DAPM we are complete */ + ret = soc_tplg_dapm_complete(tplg); + if (ret < 0) + dev_err(tplg->dev, + "ASoC: failed to initialise DAPM from Firmware\n"); + + return ret; +} + +static int soc_tplg_load(struct soc_tplg *tplg) +{ + int ret; + + ret = soc_tplg_process_headers(tplg); + if (ret == 0) + soc_tplg_complete(tplg); + + return ret; +} + +/* load audio component topology from "firmware" file */ +int snd_soc_tplg_component_load(struct snd_soc_component *comp, + struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) +{ + struct soc_tplg tplg; + int ret; + + /* setup parsing context */ + memset(&tplg, 0, sizeof(tplg)); + tplg.fw = fw; + tplg.dev = comp->dev; + tplg.comp = comp; + tplg.ops = ops; + tplg.req_index = id; + tplg.io_ops = ops->io_ops; + tplg.io_ops_count = ops->io_ops_count; + tplg.bytes_ext_ops = ops->bytes_ext_ops; + tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; + + ret = soc_tplg_load(&tplg); + /* free the created components if fail to load topology */ + if (ret) + snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); + +/* remove this dynamic widget */ +void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) +{ + /* make sure we are a widget */ + if (w->dobj.type != SND_SOC_DOBJ_WIDGET) + return; + + remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); +} +EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); + +/* remove all dynamic widgets from this DAPM context */ +void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, + u32 index) +{ + struct snd_soc_dapm_widget *w, *next_w; + + list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { + + /* make sure we are a widget with correct context */ + if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) + continue; + + /* match ID */ + if (w->dobj.index != index && + w->dobj.index != SND_SOC_TPLG_INDEX_ALL) + continue; + /* check and free and dynamic widget kcontrols */ + snd_soc_tplg_widget_remove(w); + snd_soc_dapm_free_widget(w); + } + snd_soc_dapm_reset_cache(dapm); +} +EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); + +/* remove dynamic controls from the component driver */ +int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) +{ + struct snd_card *card = comp->card->snd_card; + struct snd_soc_dobj *dobj, *next_dobj; + int pass = SOC_TPLG_PASS_END; + + /* process the header types from end to start */ + while (pass >= SOC_TPLG_PASS_START) { + + /* remove mixer controls */ + down_write(&card->controls_rwsem); + list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, + list) { + + /* match index */ + if (dobj->index != index && + index != SND_SOC_TPLG_INDEX_ALL) + continue; + + switch (dobj->type) { + case SND_SOC_DOBJ_MIXER: + remove_mixer(comp, dobj, pass); + break; + case SND_SOC_DOBJ_ENUM: + remove_enum(comp, dobj, pass); + break; + case SND_SOC_DOBJ_BYTES: + remove_bytes(comp, dobj, pass); + break; + case SND_SOC_DOBJ_WIDGET: + remove_widget(comp, dobj, pass); + break; + case SND_SOC_DOBJ_PCM: + remove_dai(comp, dobj, pass); + break; + case SND_SOC_DOBJ_DAI_LINK: + remove_link(comp, dobj, pass); + break; + default: + dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", + dobj->type); + break; + } + } + up_write(&card->controls_rwsem); + pass--; + } + + /* let caller know if FW can be freed when no objects are left */ + return !list_empty(&comp->dobj_list); +} +EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); |