/* * 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> * * 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. * * 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_START SOC_TPLG_PASS_MANIFEST #define SOC_TPLG_PASS_END SOC_TPLG_PASS_PINS 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}, }; 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, 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, w, tplg_w); return 0; } /* pass DAI configurations to component driver for extra intialization */ static int soc_tplg_dai_load(struct soc_tplg *tplg, struct snd_soc_dai_driver *dai_drv) { if (tplg->comp && tplg->ops && tplg->ops->dai_load) return tplg->ops->dai_load(tplg->comp, dai_drv); return 0; } /* pass link configurations to component driver for extra intialization */ static int soc_tplg_dai_link_load(struct soc_tplg *tplg, struct snd_soc_dai_link *link) { if (tplg->comp && tplg->ops && tplg->ops->link_load) return tplg->ops->link_load(tplg->comp, link); 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, NULL, 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); /* * Dynamic Widgets either have 1 enum kcontrol or 1..N mixers. * The enum may either have an array of values or strings. */ if (dobj->widget.kcontrol_enum) { /* enumerated widget mixer */ struct soc_enum *se = (struct soc_enum *)w->kcontrols[0]->private_value; snd_ctl_remove(card, w->kcontrols[0]); kfree(se->dobj.control.dvalues); for (i = 0; i < se->items; i++) kfree(se->dobj.control.dtexts[i]); kfree(se); kfree(w->kcontrol_news); } else { /* non enumerated widget mixer */ for (i = 0; i < w->num_kcontrols; i++) { struct snd_kcontrol *kcontrol = w->kcontrols[i]; struct soc_mixer_control *sm = (struct soc_mixer_control *) kcontrol->private_value; kfree(w->kcontrols[i]->tlv.p); snd_ctl_remove(card, w->kcontrols[i]); kfree(sm); } 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); 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); 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_READWRITE && 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, 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 = kzalloc(sizeof(char *) * ec->items, 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; } } 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; 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; } 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\n", count); 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; /* 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 = mc->hdr.name; 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; } } return kc; err_str: kfree(sm); err: for (--i; i >= 0; i--) kfree((void *)kc[i].private_value); kfree(kc); return NULL; } static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( struct soc_tplg *tplg) { struct snd_kcontrol_new *kc; struct snd_soc_tplg_enum_control *ec; struct soc_enum *se; int i, err; 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 NULL; kc = kzalloc(sizeof(*kc), GFP_KERNEL); if (kc == NULL) return NULL; 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->name = ec->hdr.name; kc->private_value = (long)se; kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; kc->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, 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, (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; } return kc; err_se: /* free values and texts */ kfree(se->dobj.control.dvalues); for (i = 0; i < ec->items; i++) kfree(se->dobj.control.dtexts[i]); kfree(se); 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 = be->hdr.name; 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); 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; 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; 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) { 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: 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: template.dobj.widget.kcontrol_enum = 1; template.num_kcontrols = 1; template.kcontrol_news = soc_tplg_dapm_widget_denum_create(tplg); if (!template.kcontrol_news) { ret = -ENOMEM; goto hdr_err; } break; case SND_SOC_TPLG_CTL_BYTES: 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 (widget == NULL) { dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", w->name); goto hdr_err; } widget->dobj.type = SND_SOC_DOBJ_WIDGET; widget->dobj.ops = tplg->ops; widget->dobj.index = tplg->index; list_add(&widget->dobj.list, &tplg->comp->dobj_list); return 0; 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; 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 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," "Do not add new widgets now\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; } 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; dai_drv->name = pcm->dai_name; 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); } /* pass control to component driver for optional further init */ ret = soc_tplg_dai_load(tplg, dai_drv); 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 int soc_tplg_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; link->name = pcm->pcm_name; link->stream_name = pcm->pcm_name; /* pass control to component driver for optional further init */ ret = soc_tplg_dai_link_load(tplg, link); 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_link_create(tplg, pcm); } static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, struct snd_soc_tplg_hdr *hdr) { struct snd_soc_tplg_pcm *pcm; int count = hdr->count; int i; if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) return 0; pcm = (struct snd_soc_tplg_pcm *)tplg->pos; if (soc_tplg_check_elem_count(tplg, sizeof(struct snd_soc_tplg_pcm), count, hdr->payload_size, "PCM DAI")) { dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", count); return -EINVAL; } /* create the FE DAIs and DAI links */ for (i = 0; i < count; i++) { soc_tplg_pcm_create(tplg, pcm); pcm++; } dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); tplg->pos += sizeof(struct snd_soc_tplg_pcm) * count; return 0; } static int soc_tplg_manifest_load(struct soc_tplg *tplg, struct snd_soc_tplg_hdr *hdr) { struct snd_soc_tplg_manifest *manifest; if (tplg->pass != SOC_TPLG_PASS_MANIFEST) return 0; manifest = (struct snd_soc_tplg_manifest *)tplg->pos; tplg->pos += sizeof(struct snd_soc_tplg_manifest); if (tplg->comp && tplg->ops && tplg->ops->manifest) return tplg->ops->manifest(tplg->comp, manifest); dev_err(tplg->dev, "ASoC: Firmware manifest not supported\n"); return 0; } /* 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; /* 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; } if (hdr->abi != SND_SOC_TPLG_ABI_VERSION) { 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 && hdr->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_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; /* 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; return soc_tplg_load(&tplg); } 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_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 */ list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, list) { /* match index */ if (dobj->index != index && dobj->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; } } 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);