- 根目录:
- sound
- soc
- soc-topology.c
/*
* 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 enum snd_soc_dobj_type get_dobj_mixer_type(
struct snd_soc_tplg_ctl_hdr *control_hdr)
{
if (control_hdr == NULL)
return SND_SOC_DOBJ_NONE;
switch (control_hdr->ops.info) {
case SND_SOC_TPLG_CTL_VOLSW:
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_CTL_STROBE:
return SND_SOC_DOBJ_MIXER;
case SND_SOC_TPLG_CTL_ENUM:
case SND_SOC_TPLG_CTL_ENUM_VALUE:
return SND_SOC_DOBJ_ENUM;
case SND_SOC_TPLG_CTL_BYTES:
return SND_SOC_DOBJ_BYTES;
default:
return SND_SOC_DOBJ_NONE;
}
}
static enum snd_soc_dobj_type get_dobj_type(struct snd_soc_tplg_hdr *hdr,
struct snd_soc_tplg_ctl_hdr *control_hdr)
{
switch (hdr->type) {
case SND_SOC_TPLG_TYPE_MIXER:
return get_dobj_mixer_type(control_hdr);
case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
case SND_SOC_TPLG_TYPE_MANIFEST:
return SND_SOC_DOBJ_NONE;
case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
return SND_SOC_DOBJ_WIDGET;
case SND_SOC_TPLG_TYPE_DAI_LINK:
return SND_SOC_DOBJ_DAI_LINK;
case SND_SOC_TPLG_TYPE_PCM:
return SND_SOC_DOBJ_PCM;
case SND_SOC_TPLG_TYPE_CODEC_LINK:
return SND_SOC_DOBJ_CODEC_LINK;
default:
return SND_SOC_DOBJ_NONE;
}
}
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 dynamic FEs configurations to component driver */
static int soc_tplg_pcm_dai_load(struct soc_tplg *tplg,
struct snd_soc_tplg_pcm_dai *pcm_dai, int num_pcm_dai)
{
if (tplg->comp && tplg->ops && tplg->ops->pcm_dai_load)
return tplg->ops->pcm_dai_load(tplg->comp, pcm_dai, num_pcm_dai);
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 PCM DAI configurations */
static void remove_pcm_dai(struct snd_soc_component *comp,
struct snd_soc_dobj *dobj, int pass)
{
if (pass != SOC_TPLG_PASS_PCM_DAI)
return;
if (dobj->ops && dobj->ops->pcm_dai_unload)
dobj->ops->pcm_dai_unload(comp, dobj);
list_del(&dobj->list);
kfree(dobj);
}
/* 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 int soc_tplg_pcm_dai_elems_load(struct soc_tplg *tplg,
struct snd_soc_tplg_hdr *hdr)
{
struct snd_soc_tplg_pcm_dai *pcm_dai;
struct snd_soc_dobj *dobj;
int count = hdr->count;
int ret;
if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
return 0;
pcm_dai = (struct snd_soc_tplg_pcm_dai *)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;
}
dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
tplg->pos += sizeof(struct snd_soc_tplg_pcm) * count;
dobj = kzalloc(sizeof(struct snd_soc_dobj), GFP_KERNEL);
if (dobj == NULL)
return -ENOMEM;
/* Call the platform driver call back to register the dais */
ret = soc_tplg_pcm_dai_load(tplg, pcm_dai, count);
if (ret < 0) {
dev_err(tplg->comp->dev, "ASoC: PCM DAI loading failed\n");
goto err;
}
dobj->type = get_dobj_type(hdr, NULL);
dobj->pcm_dai.count = count;
dobj->pcm_dai.pd = pcm_dai;
dobj->ops = tplg->ops;
dobj->index = tplg->index;
list_add(&dobj->list, &tplg->comp->dobj_list);
return 0;
err:
kfree(dobj);
return ret;
}
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:
case SND_SOC_TPLG_TYPE_DAI_LINK:
case SND_SOC_TPLG_TYPE_CODEC_LINK:
return soc_tplg_pcm_dai_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:
case SND_SOC_DOBJ_DAI_LINK:
case SND_SOC_DOBJ_CODEC_LINK:
remove_pcm_dai(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);