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-rw-r--r--sound/soc/soc-topology.c2674
1 files changed, 2674 insertions, 0 deletions
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
new file mode 100644
index 000000000..d68c48555
--- /dev/null
+++ b/sound/soc/soc-topology.c
@@ -0,0 +1,2674 @@
+// 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>
+
+#define SOC_TPLG_MAGIC_BIG_ENDIAN 0x436F5341 /* ASoC in reverse */
+
+/*
+ * 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_CONTROL 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 position */
+ 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 */
+
+ /* 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 int soc_tplg_complete(struct soc_tplg *tplg);
+
+/* 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 bool soc_tplg_is_eof(struct soc_tplg *tplg)
+{
+ const u8 *end = tplg->hdr_pos;
+
+ if (end >= tplg->fw->data + tplg->fw->size)
+ return true;
+ return false;
+}
+
+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 (le32_to_cpu(chan[i].id) == map)
+ return le32_to_cpu(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 (le32_to_cpu(chan[i].id) == map)
+ return le32_to_cpu(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 control 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->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;
+}
+
+/* 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->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->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->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->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 int soc_tplg_complete(struct soc_tplg *tplg)
+{
+ if (tplg->ops && tplg->ops->complete)
+ return tplg->ops->complete(tplg->comp);
+
+ return 0;
+}
+
+/* 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,
+ tplg->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;
+
+ if (pass != SOC_TPLG_PASS_CONTROL)
+ return;
+
+ if (dobj->ops && dobj->ops->control_unload)
+ dobj->ops->control_unload(comp, dobj);
+
+ snd_ctl_remove(card, dobj->control.kcontrol);
+ list_del(&dobj->list);
+}
+
+/* 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;
+
+ if (pass != SOC_TPLG_PASS_CONTROL)
+ return;
+
+ if (dobj->ops && dobj->ops->control_unload)
+ dobj->ops->control_unload(comp, dobj);
+
+ snd_ctl_remove(card, dobj->control.kcontrol);
+ list_del(&dobj->list);
+}
+
+/* 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;
+
+ if (pass != SOC_TPLG_PASS_CONTROL)
+ return;
+
+ if (dobj->ops && dobj->ops->control_unload)
+ dobj->ops->control_unload(comp, dobj);
+
+ snd_ctl_remove(card, dobj->control.kcontrol);
+ list_del(&dobj->list);
+}
+
+/* remove a route */
+static void remove_route(struct snd_soc_component *comp,
+ struct snd_soc_dobj *dobj, int pass)
+{
+ if (pass != SOC_TPLG_PASS_GRAPH)
+ return;
+
+ if (dobj->ops && dobj->ops->dapm_route_unload)
+ dobj->ops->dapm_route_unload(comp, dobj);
+
+ list_del(&dobj->list);
+}
+
+/* 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;
+
+ for (i = 0; w->kcontrols && i < w->num_kcontrols; i++)
+ snd_ctl_remove(card, w->kcontrols[i]);
+
+free_news:
+
+ list_del(&dobj->list);
+
+ /* 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);
+ struct snd_soc_dai *dai, *_dai;
+
+ if (pass != SOC_TPLG_PASS_PCM_DAI)
+ return;
+
+ if (dobj->ops && dobj->ops->dai_unload)
+ dobj->ops->dai_unload(comp, dobj);
+
+ for_each_component_dais_safe(comp, dai, _dai)
+ if (dai->driver == dai_drv)
+ snd_soc_unregister_dai(dai);
+
+ list_del(&dobj->list);
+}
+
+/* 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_pcm_runtime(comp->card,
+ snd_soc_get_pcm_runtime(comp->card, link));
+}
+
+/* unload dai link */
+static void remove_backend_link(struct snd_soc_component *comp,
+ struct snd_soc_dobj *dobj, int pass)
+{
+ if (pass != SOC_TPLG_PASS_LINK)
+ return;
+
+ if (dobj->ops && dobj->ops->link_unload)
+ dobj->ops->link_unload(comp, dobj);
+
+ /*
+ * We don't free the link here as what remove_link() do since BE
+ * links are not allocated by topology.
+ * We however need to reset the dobj type to its initial values
+ */
+ dobj->type = SND_SOC_DOBJ_NONE;
+ list_del(&dobj->list);
+}
+
+/* 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 (le32_to_cpu(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;
+
+ /*
+ * When a topology-based implementation abuses the
+ * control interface and uses bytes_ext controls of
+ * more than 512 bytes, we need to disable the size
+ * checks, otherwise accesses to such controls will
+ * return an -EINVAL error and prevent the card from
+ * being configured.
+ */
+ if (sbe->max > 512)
+ k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK;
+
+ 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 == le32_to_cpu(be->ext_ops.put))
+ sbe->put = ext_ops[i].put;
+ if (!sbe->get &&
+ ext_ops[i].id == le32_to_cpu(be->ext_ops.get))
+ sbe->get = ext_ops[i].get;
+ }
+
+ if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get)
+ return -EINVAL;
+ if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put)
+ return -EINVAL;
+ return 0;
+ }
+
+ /* 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 == le32_to_cpu(hdr->ops.put))
+ k->put = ops[i].put;
+ if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
+ k->get = ops[i].get;
+ if (k->info == NULL && ops[i].id == le32_to_cpu(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 == le32_to_cpu(hdr->ops.put))
+ k->put = ops[i].put;
+ if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
+ k->get = ops[i].get;
+ if (k->info == NULL && ops[i].id == le32_to_cpu(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_control_load(struct soc_tplg *tplg,
+ struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
+{
+ if (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 = devm_kzalloc(tplg->dev, 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] = le32_to_cpu(scale->min);
+ p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
+ | (le32_to_cpu(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;
+ u32 access = le32_to_cpu(tc->access);
+
+ if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
+ return 0;
+
+ if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
+ tplg_tlv = &tc->tlv;
+ switch (le32_to_cpu(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 int soc_tplg_dbytes_create(struct soc_tplg *tplg, size_t size)
+{
+ struct snd_soc_tplg_bytes_control *be;
+ struct soc_bytes_ext *sbe;
+ struct snd_kcontrol_new kc;
+ int ret = 0;
+
+ if (soc_tplg_check_elem_count(tplg,
+ sizeof(struct snd_soc_tplg_bytes_control),
+ 1, size, "mixer bytes"))
+ return -EINVAL;
+
+ 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 = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
+ if (sbe == NULL)
+ return -ENOMEM;
+
+ tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
+ le32_to_cpu(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 = le32_to_cpu(be->hdr.access);
+
+ sbe->max = le32_to_cpu(be->max);
+ sbe->dobj.type = SND_SOC_DOBJ_BYTES;
+ sbe->dobj.ops = tplg->ops;
+ INIT_LIST_HEAD(&sbe->dobj.list);
+
+ /* map io handlers */
+ ret = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
+ if (ret) {
+ soc_control_err(tplg, &be->hdr, be->hdr.name);
+ goto err;
+ }
+
+ /* pass control to driver for optional further init */
+ ret = soc_tplg_control_load(tplg, &kc, (struct snd_soc_tplg_ctl_hdr *)be);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: failed to init %s\n", be->hdr.name);
+ goto err;
+ }
+
+ /* register control here */
+ ret = soc_tplg_add_kcontrol(tplg, &kc, &sbe->dobj.control.kcontrol);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: failed to add %s\n", be->hdr.name);
+ goto err;
+ }
+
+ list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
+
+err:
+ return ret;
+}
+
+static int soc_tplg_dmixer_create(struct soc_tplg *tplg, size_t size)
+{
+ struct snd_soc_tplg_mixer_control *mc;
+ struct soc_mixer_control *sm;
+ struct snd_kcontrol_new kc;
+ int ret = 0;
+
+ if (soc_tplg_check_elem_count(tplg,
+ sizeof(struct snd_soc_tplg_mixer_control),
+ 1, size, "mixers"))
+ return -EINVAL;
+
+ 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 = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
+ if (sm == NULL)
+ return -ENOMEM;
+ tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
+ le32_to_cpu(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 = le32_to_cpu(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 = le32_to_cpu(mc->max);
+ sm->min = le32_to_cpu(mc->min);
+ sm->invert = le32_to_cpu(mc->invert);
+ sm->platform_max = le32_to_cpu(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 */
+ ret = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
+ if (ret) {
+ soc_control_err(tplg, &mc->hdr, mc->hdr.name);
+ goto err;
+ }
+
+ /* create any TLV data */
+ ret = soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", mc->hdr.name);
+ goto err;
+ }
+
+ /* pass control to driver for optional further init */
+ ret = soc_tplg_control_load(tplg, &kc, (struct snd_soc_tplg_ctl_hdr *)mc);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: failed to init %s\n", mc->hdr.name);
+ goto err;
+ }
+
+ /* register control here */
+ ret = soc_tplg_add_kcontrol(tplg, &kc, &sm->dobj.control.kcontrol);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: failed to add %s\n", mc->hdr.name);
+ goto err;
+ }
+
+ list_add(&sm->dobj.list, &tplg->comp->dobj_list);
+
+err:
+ return ret;
+}
+
+static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se,
+ struct snd_soc_tplg_enum_control *ec)
+{
+ int i, ret;
+
+ if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts))
+ return -EINVAL;
+
+ se->dobj.control.dtexts =
+ devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
+ if (se->dobj.control.dtexts == NULL)
+ return -ENOMEM;
+
+ for (i = 0; i < le32_to_cpu(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] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL);
+ if (!se->dobj.control.dtexts[i]) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ }
+
+ se->items = le32_to_cpu(ec->items);
+ se->texts = (const char * const *)se->dobj.control.dtexts;
+ return 0;
+
+err:
+ return ret;
+}
+
+static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se,
+ struct snd_soc_tplg_enum_control *ec)
+{
+ int i;
+
+ /*
+ * Following "if" checks if we have at most SND_SOC_TPLG_NUM_TEXTS
+ * values instead of using ARRAY_SIZE(ec->values) due to the fact that
+ * it is oversized for its purpose. Additionally it is done so because
+ * it is defined in UAPI header where it can't be easily changed.
+ */
+ if (le32_to_cpu(ec->items) > SND_SOC_TPLG_NUM_TEXTS)
+ return -EINVAL;
+
+ se->dobj.control.dvalues = devm_kcalloc(tplg->dev, le32_to_cpu(ec->items),
+ sizeof(*se->dobj.control.dvalues),
+ GFP_KERNEL);
+ if (!se->dobj.control.dvalues)
+ return -ENOMEM;
+
+ /* convert from little-endian */
+ for (i = 0; i < le32_to_cpu(ec->items); i++) {
+ se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
+ }
+
+ return 0;
+}
+
+static int soc_tplg_denum_create(struct soc_tplg *tplg, size_t size)
+{
+ struct snd_soc_tplg_enum_control *ec;
+ struct soc_enum *se;
+ struct snd_kcontrol_new kc;
+ int ret = 0;
+
+ if (soc_tplg_check_elem_count(tplg,
+ sizeof(struct snd_soc_tplg_enum_control),
+ 1, size, "enums"))
+ return -EINVAL;
+
+ 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)
+ return -EINVAL;
+
+ se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL);
+ if (se == NULL)
+ return -ENOMEM;
+
+ tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
+ le32_to_cpu(ec->priv.size));
+
+ 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 = le32_to_cpu(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->mask = le32_to_cpu(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 (le32_to_cpu(ec->hdr.ops.info)) {
+ case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
+ case SND_SOC_TPLG_CTL_ENUM_VALUE:
+ ret = soc_tplg_denum_create_values(tplg, se, ec);
+ if (ret < 0) {
+ dev_err(tplg->dev,
+ "ASoC: could not create values for %s\n",
+ ec->hdr.name);
+ goto err;
+ }
+ fallthrough;
+ case SND_SOC_TPLG_CTL_ENUM:
+ case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
+ case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
+ ret = soc_tplg_denum_create_texts(tplg, se, ec);
+ if (ret < 0) {
+ dev_err(tplg->dev,
+ "ASoC: could not create texts for %s\n",
+ ec->hdr.name);
+ goto err;
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ dev_err(tplg->dev,
+ "ASoC: invalid enum control type %d for %s\n",
+ ec->hdr.ops.info, ec->hdr.name);
+ goto err;
+ }
+
+ /* map io handlers */
+ ret = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
+ if (ret) {
+ soc_control_err(tplg, &ec->hdr, ec->hdr.name);
+ goto err;
+ }
+
+ /* pass control to driver for optional further init */
+ ret = soc_tplg_control_load(tplg, &kc, (struct snd_soc_tplg_ctl_hdr *)ec);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: failed to init %s\n", ec->hdr.name);
+ goto err;
+ }
+
+ /* 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);
+ goto err;
+ }
+
+ list_add(&se->dobj.list, &tplg->comp->dobj_list);
+
+err:
+ return ret;
+}
+
+static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
+ struct snd_soc_tplg_hdr *hdr)
+{
+ int ret;
+ int i;
+
+ dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
+ soc_tplg_get_offset(tplg));
+
+ for (i = 0; i < le32_to_cpu(hdr->count); i++) {
+ struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
+
+ if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
+ dev_err(tplg->dev, "ASoC: invalid control size\n");
+ return -EINVAL;
+ }
+
+ switch (le32_to_cpu(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:
+ ret = soc_tplg_dmixer_create(tplg, le32_to_cpu(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:
+ ret = soc_tplg_denum_create(tplg, le32_to_cpu(hdr->payload_size));
+ break;
+ case SND_SOC_TPLG_CTL_BYTES:
+ ret = soc_tplg_dbytes_create(tplg, le32_to_cpu(hdr->payload_size));
+ break;
+ default:
+ soc_bind_err(tplg, control_hdr, i);
+ return -EINVAL;
+ }
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: invalid control\n");
+ return ret;
+ }
+
+ }
+
+ 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->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_tplg_dapm_graph_elem *elem;
+ struct snd_soc_dapm_route *route;
+ int count, i;
+ int ret = 0;
+
+ count = le32_to_cpu(hdr->count);
+
+ if (soc_tplg_check_elem_count(tplg,
+ sizeof(struct snd_soc_tplg_dapm_graph_elem),
+ count, le32_to_cpu(hdr->payload_size), "graph"))
+ return -EINVAL;
+
+ dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
+ hdr->index);
+
+ for (i = 0; i < count; i++) {
+ route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL);
+ if (!route)
+ return -ENOMEM;
+ 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) {
+ ret = -EINVAL;
+ break;
+ }
+ if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+ SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
+ ret = -EINVAL;
+ break;
+ }
+ if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+ SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
+ ret = -EINVAL;
+ break;
+ }
+
+ route->source = elem->source;
+ route->sink = elem->sink;
+
+ /* set to NULL atm for tplg users */
+ route->connected = NULL;
+ if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
+ route->control = NULL;
+ else
+ route->control = elem->control;
+
+ /* add route dobj to dobj_list */
+ route->dobj.type = SND_SOC_DOBJ_GRAPH;
+ route->dobj.ops = tplg->ops;
+ route->dobj.index = tplg->index;
+ list_add(&route->dobj.list, &tplg->comp->dobj_list);
+
+ ret = soc_tplg_add_route(tplg, route);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret);
+ break;
+ }
+
+ /* add route, but keep going if some fail */
+ snd_soc_dapm_add_routes(dapm, route, 1);
+ }
+
+ return ret;
+}
+
+static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
+{
+ struct soc_mixer_control *sm;
+ struct snd_soc_tplg_mixer_control *mc;
+ int err;
+
+ 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 = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
+ if (!sm)
+ return -ENOMEM;
+
+ tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) +
+ le32_to_cpu(mc->priv.size);
+
+ dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n",
+ mc->hdr.name);
+
+ kc->private_value = (long)sm;
+ kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL);
+ if (!kc->name)
+ return -ENOMEM;
+ kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ kc->access = le32_to_cpu(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 = le32_to_cpu(mc->max);
+ sm->min = le32_to_cpu(mc->min);
+ sm->invert = le32_to_cpu(mc->invert);
+ sm->platform_max = le32_to_cpu(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, tplg);
+ if (err) {
+ soc_control_err(tplg, &mc->hdr, mc->hdr.name);
+ return err;
+ }
+
+ /* create any TLV data */
+ err = soc_tplg_create_tlv(tplg, kc, &mc->hdr);
+ if (err < 0) {
+ dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
+ mc->hdr.name);
+ return err;
+ }
+
+ /* pass control to driver for optional further init */
+ err = soc_tplg_control_load(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);
+ return err;
+ }
+
+ return 0;
+}
+
+static int 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 err;
+
+ 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)
+ return -EINVAL;
+
+ se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL);
+ if (!se)
+ return -ENOMEM;
+
+ tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
+ le32_to_cpu(ec->priv.size));
+
+ dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
+ ec->hdr.name);
+
+ kc->private_value = (long)se;
+ kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL);
+ if (!kc->name)
+ return -ENOMEM;
+ kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ kc->access = le32_to_cpu(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 = le32_to_cpu(ec->items);
+ se->mask = le32_to_cpu(ec->mask);
+ se->dobj.index = tplg->index;
+
+ switch (le32_to_cpu(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(tplg, se, ec);
+ if (err < 0) {
+ dev_err(tplg->dev, "ASoC: could not create values for %s\n",
+ ec->hdr.name);
+ return err;
+ }
+ fallthrough;
+ 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(tplg, se, ec);
+ if (err < 0) {
+ dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
+ ec->hdr.name);
+ return err;
+ }
+ break;
+ default:
+ dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
+ ec->hdr.ops.info, ec->hdr.name);
+ return -EINVAL;
+ }
+
+ /* map io handlers */
+ err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg);
+ if (err) {
+ soc_control_err(tplg, &ec->hdr, ec->hdr.name);
+ return err;
+ }
+
+ /* pass control to driver for optional further init */
+ err = soc_tplg_control_load(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);
+ return err;
+ }
+
+ return 0;
+}
+
+static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
+{
+ struct snd_soc_tplg_bytes_control *be;
+ struct soc_bytes_ext *sbe;
+ int err;
+
+ 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 = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
+ if (!sbe)
+ return -ENOMEM;
+
+ tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
+ le32_to_cpu(be->priv.size));
+
+ dev_dbg(tplg->dev,
+ "ASoC: adding bytes kcontrol %s with access 0x%x\n",
+ be->hdr.name, be->hdr.access);
+
+ kc->private_value = (long)sbe;
+ kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL);
+ if (!kc->name)
+ return -ENOMEM;
+ kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ kc->access = le32_to_cpu(be->hdr.access);
+
+ sbe->max = le32_to_cpu(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, tplg);
+ if (err) {
+ soc_control_err(tplg, &be->hdr, be->hdr.name);
+ return err;
+ }
+
+ /* pass control to driver for optional further init */
+ err = soc_tplg_control_load(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);
+ return err;
+ }
+
+ return 0;
+}
+
+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 = NULL;
+ struct snd_kcontrol_new *kc;
+ int mixer_count = 0;
+ int bytes_count = 0;
+ int enum_count = 0;
+ int ret = 0;
+ int i;
+
+ 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(le32_to_cpu(w->id));
+ if ((int)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 = le32_to_cpu(w->reg);
+ template.shift = le32_to_cpu(w->shift);
+ template.mask = le32_to_cpu(w->mask);
+ template.subseq = le32_to_cpu(w->subseq);
+ template.on_val = w->invert ? 0 : 1;
+ template.off_val = w->invert ? 1 : 0;
+ template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
+ template.event_flags = le16_to_cpu(w->event_flags);
+ template.dobj.index = tplg->index;
+
+ tplg->pos +=
+ (sizeof(struct snd_soc_tplg_dapm_widget) +
+ le32_to_cpu(w->priv.size));
+
+ if (w->num_kcontrols == 0) {
+ template.num_kcontrols = 0;
+ goto widget;
+ }
+
+ template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
+ kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL);
+ if (!kc) {
+ ret = -ENOMEM;
+ goto hdr_err;
+ }
+
+ kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int),
+ GFP_KERNEL);
+ if (!kcontrol_type) {
+ ret = -ENOMEM;
+ goto hdr_err;
+ }
+
+ for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) {
+ control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
+ switch (le32_to_cpu(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:
+ /* volume mixer */
+ kc[i].index = mixer_count;
+ kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER;
+ mixer_count++;
+ ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]);
+ if (ret < 0)
+ 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:
+ /* enumerated mixer */
+ kc[i].index = enum_count;
+ kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM;
+ enum_count++;
+ ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]);
+ if (ret < 0)
+ goto hdr_err;
+ break;
+ case SND_SOC_TPLG_CTL_BYTES:
+ /* bytes control */
+ kc[i].index = bytes_count;
+ kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES;
+ bytes_count++;
+ ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]);
+ if (ret < 0)
+ 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,
+ le32_to_cpu(control_hdr->ops.info));
+ ret = -EINVAL;
+ goto hdr_err;
+ }
+ }
+
+ template.kcontrol_news = kc;
+ dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n",
+ w->name, mixer_count, enum_count, bytes_count);
+
+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);
+ 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;
+
+ kfree(template.sname);
+ kfree(template.name);
+
+ return 0;
+
+ready_err:
+ remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_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)
+{
+ int count, i;
+
+ count = le32_to_cpu(hdr->count);
+
+ dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
+
+ for (i = 0; i < count; i++) {
+ struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
+ int ret;
+
+ /*
+ * check if widget itself fits within topology file
+ * use sizeof instead of widget->size, as we can't be sure
+ * it is set properly yet (file may end before it is present)
+ */
+ if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) {
+ dev_err(tplg->dev, "ASoC: invalid widget data size\n");
+ return -EINVAL;
+ }
+
+ /* check if widget has proper size */
+ if (le32_to_cpu(widget->size) != sizeof(*widget)) {
+ dev_err(tplg->dev, "ASoC: invalid widget size\n");
+ return -EINVAL;
+ }
+
+ /* check if widget private data fits within topology file */
+ if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) {
+ dev_err(tplg->dev, "ASoC: invalid widget private data 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 int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream,
+ struct snd_soc_tplg_stream_caps *caps)
+{
+ stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL);
+ if (!stream->stream_name)
+ return -ENOMEM;
+
+ stream->channels_min = le32_to_cpu(caps->channels_min);
+ stream->channels_max = le32_to_cpu(caps->channels_max);
+ stream->rates = le32_to_cpu(caps->rates);
+ stream->rate_min = le32_to_cpu(caps->rate_min);
+ stream->rate_max = le32_to_cpu(caps->rate_max);
+ stream->formats = le64_to_cpu(caps->formats);
+ stream->sig_bits = le32_to_cpu(caps->sig_bits);
+
+ return 0;
+}
+
+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_rate =
+ (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_sample_bits =
+ (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;
+ struct snd_soc_dai *dai;
+ struct snd_soc_dapm_context *dapm =
+ snd_soc_component_get_dapm(tplg->comp);
+ int ret;
+
+ dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
+ if (dai_drv == NULL)
+ return -ENOMEM;
+
+ if (strlen(pcm->dai_name)) {
+ dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
+ if (!dai_drv->name) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ }
+ dai_drv->id = le32_to_cpu(pcm->dai_id);
+
+ if (pcm->playback) {
+ stream = &dai_drv->playback;
+ caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
+ ret = set_stream_info(tplg, stream, caps);
+ if (ret < 0)
+ goto err;
+ }
+
+ if (pcm->capture) {
+ stream = &dai_drv->capture;
+ caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
+ ret = set_stream_info(tplg, stream, caps);
+ if (ret < 0)
+ goto err;
+ }
+
+ 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->dev, "ASoC: DAI loading failed\n");
+ goto err;
+ }
+
+ 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 */
+ dai = snd_soc_register_dai(tplg->comp, dai_drv, false);
+ if (!dai)
+ return -ENOMEM;
+
+ /* Create the DAI widgets here */
+ ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
+ if (ret != 0) {
+ dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
+ snd_soc_unregister_dai(dai);
+ return ret;
+ }
+
+ return 0;
+
+err:
+ return ret;
+}
+
+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_rate =
+ (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_sample_bits =
+ (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;
+ struct snd_soc_dai_link_component *dlc;
+ int ret;
+
+ /* link + cpu + codec + platform */
+ link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
+ if (link == NULL)
+ return -ENOMEM;
+
+ dlc = (struct snd_soc_dai_link_component *)(link + 1);
+
+ link->cpus = &dlc[0];
+ link->codecs = &dlc[1];
+ link->platforms = &dlc[2];
+
+ link->num_cpus = 1;
+ link->num_codecs = 1;
+ link->num_platforms = 1;
+
+ link->dobj.index = tplg->index;
+ link->dobj.ops = tplg->ops;
+ link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
+
+ if (strlen(pcm->pcm_name)) {
+ link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
+ link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
+ if (!link->name || !link->stream_name) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ }
+ link->id = le32_to_cpu(pcm->pcm_id);
+
+ if (strlen(pcm->dai_name)) {
+ link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
+ if (!link->cpus->dai_name) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ }
+
+ link->codecs->name = "snd-soc-dummy";
+ link->codecs->dai_name = "snd-soc-dummy-dai";
+
+ link->platforms->name = "snd-soc-dummy";
+
+ /* enable DPCM */
+ link->dynamic = 1;
+ link->ignore_pmdown_time = 1;
+ link->dpcm_playback = le32_to_cpu(pcm->playback);
+ link->dpcm_capture = le32_to_cpu(pcm->capture);
+ if (pcm->flag_mask)
+ set_link_flags(link,
+ le32_to_cpu(pcm->flag_mask),
+ le32_to_cpu(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->dev, "ASoC: FE link loading failed\n");
+ goto err;
+ }
+
+ ret = snd_soc_add_pcm_runtime(tplg->comp->card, link);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: adding FE link failed\n");
+ goto err;
+ }
+
+ list_add(&link->dobj.list, &tplg->comp->dobj_list);
+
+ return 0;
+err:
+ return ret;
+}
+
+/* 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 = cpu_to_le32(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 version 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 (le32_to_cpu(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 = cpu_to_le32(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 < le32_to_cpu(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;
+ int size;
+ int i;
+ bool abi_match;
+ int ret;
+
+ count = le32_to_cpu(hdr->count);
+
+ /* check the element size and count */
+ pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
+ size = le32_to_cpu(pcm->size);
+ if (size > sizeof(struct snd_soc_tplg_pcm)
+ || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
+ dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
+ size);
+ return -EINVAL;
+ }
+
+ if (soc_tplg_check_elem_count(tplg,
+ size, count,
+ le32_to_cpu(hdr->payload_size),
+ "PCM DAI"))
+ return -EINVAL;
+
+ for (i = 0; i < count; i++) {
+ pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
+ size = le32_to_cpu(pcm->size);
+
+ /* check ABI version by size, create a new version of pcm
+ * if abi not match.
+ */
+ if (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 += size + le32_to_cpu(_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_provider, fsync_provider;
+ unsigned char invert_bclk, invert_fsync;
+ int i;
+
+ for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
+ hw_config = &cfg->hw_config[i];
+ if (hw_config->id != cfg->default_hw_config_id)
+ continue;
+
+ link->dai_fmt = le32_to_cpu(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_provider = (hw_config->bclk_provider ==
+ SND_SOC_TPLG_BCLK_CP);
+ fsync_provider = (hw_config->fsync_provider ==
+ SND_SOC_TPLG_FSYNC_CP);
+ if (bclk_provider && fsync_provider)
+ link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
+ else if (!bclk_provider && fsync_provider)
+ link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP;
+ else if (bclk_provider && !fsync_provider)
+ link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC;
+ else
+ link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
+ }
+}
+
+/**
+ * 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 version 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 (le32_to_cpu(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 = cpu_to_le32(sizeof(*dest));
+ dest->id = src_v4->id;
+ dest->num_streams = src_v4->num_streams;
+ for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
+ memcpy(&dest->stream[i], &src_v4->stream[i],
+ sizeof(struct snd_soc_tplg_stream));
+
+ *link = dest;
+ return 0;
+}
+
+/**
+ * snd_soc_find_dai_link - Find a DAI link
+ *
+ * @card: soc card
+ * @id: DAI link ID to match
+ * @name: DAI link name to match, optional
+ * @stream_name: DAI link stream name to match, optional
+ *
+ * This function will search all existing DAI links of the soc card to
+ * find the link of the same ID. Since DAI links may not have their
+ * unique ID, so name and stream name should also match if being
+ * specified.
+ *
+ * Return: pointer of DAI link, or NULL if not found.
+ */
+static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
+ int id, const char *name,
+ const char *stream_name)
+{
+ struct snd_soc_pcm_runtime *rtd;
+
+ for_each_card_rtds(card, rtd) {
+ struct snd_soc_dai_link *link = rtd->dai_link;
+
+ if (link->id != id)
+ continue;
+
+ if (name && (!link->name || strcmp(name, link->name)))
+ continue;
+
+ if (stream_name && (!link->stream_name
+ || strcmp(stream_name, link->stream_name)))
+ continue;
+
+ return link;
+ }
+
+ return NULL;
+}
+
+/* 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, le32_to_cpu(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,
+ le32_to_cpu(cfg->flag_mask),
+ le32_to_cpu(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;
+ }
+
+ /* for unloading it in snd_soc_tplg_component_remove */
+ link->dobj.index = tplg->index;
+ link->dobj.ops = tplg->ops;
+ link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
+ list_add(&link->dobj.list, &tplg->comp->dobj_list);
+
+ 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;
+ int size;
+ int i, ret;
+ bool abi_match;
+
+ count = le32_to_cpu(hdr->count);
+
+ /* check the element size and count */
+ link = (struct snd_soc_tplg_link_config *)tplg->pos;
+ size = le32_to_cpu(link->size);
+ if (size > sizeof(struct snd_soc_tplg_link_config)
+ || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
+ dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
+ size);
+ return -EINVAL;
+ }
+
+ if (soc_tplg_check_elem_count(tplg, size, count,
+ le32_to_cpu(hdr->payload_size),
+ "physical link config"))
+ return -EINVAL;
+
+ /* config physical DAI links */
+ for (i = 0; i < count; i++) {
+ link = (struct snd_soc_tplg_link_config *)tplg->pos;
+ size = le32_to_cpu(link->size);
+ if (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 += size + le32_to_cpu(_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;
+ 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;
+
+ memset(&dai_component, 0, sizeof(dai_component));
+
+ 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 (le32_to_cpu(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];
+ ret = set_stream_info(tplg, stream, caps);
+ if (ret < 0)
+ goto err;
+ }
+
+ if (d->capture) {
+ stream = &dai_drv->capture;
+ caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
+ ret = set_stream_info(tplg, stream, caps);
+ if (ret < 0)
+ goto err;
+ }
+
+ if (d->flag_mask)
+ set_dai_flags(dai_drv,
+ le32_to_cpu(d->flag_mask),
+ le32_to_cpu(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->dev, "ASoC: DAI loading failed\n");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ return ret;
+}
+
+/* load physical DAI elements */
+static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
+ struct snd_soc_tplg_hdr *hdr)
+{
+ int count;
+ int i;
+
+ count = le32_to_cpu(hdr->count);
+
+ /* config the existing BE DAIs */
+ for (i = 0; i < count; i++) {
+ struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos;
+ int ret;
+
+ if (le32_to_cpu(dai->size) != sizeof(*dai)) {
+ dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
+ return -EINVAL;
+ }
+
+ ret = soc_tplg_dai_config(tplg, dai);
+ if (ret < 0) {
+ dev_err(tplg->dev, "ASoC: failed to configure DAI\n");
+ return ret;
+ }
+
+ tplg->pos += (sizeof(*dai) + le32_to_cpu(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 version 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;
+ int size;
+
+ *manifest = NULL;
+
+ size = le32_to_cpu(src->size);
+ if (size != sizeof(*src_v4)) {
+ dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
+ size);
+ if (size)
+ return -EINVAL;
+ src->size = cpu_to_le32(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) + le32_to_cpu(src_v4->priv.size),
+ GFP_KERNEL);
+ if (!dest)
+ return -ENOMEM;
+
+ dest->size = cpu_to_le32(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,
+ le32_to_cpu(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;
+
+ manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
+
+ /* check ABI version by size, create a new manifest if abi not match */
+ if (le32_to_cpu(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->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 (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
+ dev_err(tplg->dev,
+ "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
+ le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
+ tplg->fw->size);
+ return -EINVAL;
+ }
+
+ if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) {
+ dev_err(tplg->dev,
+ "ASoC: invalid header of type %d at offset %ld payload_size %d\n",
+ le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
+ hdr->payload_size);
+ return -EINVAL;
+ }
+
+ /* big endian firmware objects not supported atm */
+ if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) {
+ 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 (le32_to_cpu(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 (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
+ le32_to_cpu(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;
+ }
+
+ 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)
+{
+ int (*elem_load)(struct soc_tplg *tplg,
+ struct snd_soc_tplg_hdr *hdr);
+ unsigned int hdr_pass;
+
+ tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
+
+ tplg->index = le32_to_cpu(hdr->index);
+
+ switch (le32_to_cpu(hdr->type)) {
+ case SND_SOC_TPLG_TYPE_MIXER:
+ case SND_SOC_TPLG_TYPE_ENUM:
+ case SND_SOC_TPLG_TYPE_BYTES:
+ hdr_pass = SOC_TPLG_PASS_CONTROL;
+ elem_load = soc_tplg_kcontrol_elems_load;
+ break;
+ case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
+ hdr_pass = SOC_TPLG_PASS_GRAPH;
+ elem_load = soc_tplg_dapm_graph_elems_load;
+ break;
+ case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
+ hdr_pass = SOC_TPLG_PASS_WIDGET;
+ elem_load = soc_tplg_dapm_widget_elems_load;
+ break;
+ case SND_SOC_TPLG_TYPE_PCM:
+ hdr_pass = SOC_TPLG_PASS_PCM_DAI;
+ elem_load = soc_tplg_pcm_elems_load;
+ break;
+ case SND_SOC_TPLG_TYPE_DAI:
+ hdr_pass = SOC_TPLG_PASS_BE_DAI;
+ elem_load = soc_tplg_dai_elems_load;
+ break;
+ case SND_SOC_TPLG_TYPE_DAI_LINK:
+ case SND_SOC_TPLG_TYPE_BACKEND_LINK:
+ /* physical link configurations */
+ hdr_pass = SOC_TPLG_PASS_LINK;
+ elem_load = soc_tplg_link_elems_load;
+ break;
+ case SND_SOC_TPLG_TYPE_MANIFEST:
+ hdr_pass = SOC_TPLG_PASS_MANIFEST;
+ elem_load = soc_tplg_manifest_load;
+ break;
+ default:
+ /* bespoke vendor data object */
+ hdr_pass = SOC_TPLG_PASS_VENDOR;
+ elem_load = soc_tplg_vendor_load;
+ break;
+ }
+
+ if (tplg->pass == hdr_pass) {
+ 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 elem_load(tplg, hdr);
+ }
+
+ return 0;
+}
+
+/* process the topology file headers */
+static int soc_tplg_process_headers(struct soc_tplg *tplg)
+{
+ int ret;
+
+ /* process the header types from start to end */
+ for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) {
+ struct snd_soc_tplg_hdr *hdr;
+
+ 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) {
+ dev_err(tplg->dev,
+ "ASoC: topology: invalid header: %d\n", ret);
+ return ret;
+ } else if (ret == 0) {
+ break;
+ }
+
+ /* load the header object */
+ ret = soc_tplg_load_header(tplg, hdr);
+ if (ret < 0) {
+ dev_err(tplg->dev,
+ "ASoC: topology: could not load header: %d\n", ret);
+ return ret;
+ }
+
+ /* goto next header */
+ tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
+ sizeof(struct snd_soc_tplg_hdr);
+ hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
+ }
+
+ }
+
+ /* 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)
+ return 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)
+{
+ struct soc_tplg tplg;
+ int ret;
+
+ /*
+ * check if we have sane parameters:
+ * comp - needs to exist to keep and reference data while parsing
+ * comp->card - used for setting card related parameters
+ * comp->card->dev - used for resource management and prints
+ * fw - we need it, as it is the very thing we parse
+ */
+ if (!comp || !comp->card || !comp->card->dev || !fw)
+ return -EINVAL;
+
+ /* setup parsing context */
+ memset(&tplg, 0, sizeof(tplg));
+ tplg.fw = fw;
+ tplg.dev = comp->card->dev;
+ tplg.comp = comp;
+ if (ops) {
+ tplg.ops = ops;
+ 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);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
+
+/* remove dynamic controls from the component driver */
+int snd_soc_tplg_component_remove(struct snd_soc_component *comp)
+{
+ struct snd_card *card = comp->card->snd_card;
+ struct snd_soc_dobj *dobj, *next_dobj;
+ int pass;
+
+ /* process the header types from end to start */
+ for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) {
+
+ /* remove mixer controls */
+ down_write(&card->controls_rwsem);
+ list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
+ list) {
+
+ 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_GRAPH:
+ remove_route(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;
+ case SND_SOC_DOBJ_BACKEND_LINK:
+ /*
+ * call link_unload ops if extra
+ * deinitialization is needed.
+ */
+ remove_backend_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);
+ }
+
+ /* 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);