diff options
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/sof/sof-audio.h | 21 | ||||
| -rw-r--r-- | sound/soc/sof/topology.c | 139 |
2 files changed, 156 insertions, 4 deletions
diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h index dfca713f00df..efc80a5febc3 100644 --- a/sound/soc/sof/sof-audio.h +++ b/sound/soc/sof/sof-audio.h @@ -30,6 +30,10 @@ */ #define SOF_WIDGET_MAX_NUM_PINS 8 +/* The type of a widget pin is either sink or source */ +#define SOF_PIN_TYPE_SINK 0 +#define SOF_PIN_TYPE_SOURCE 1 + /* max number of FE PCMs before BEs */ #define SOF_BE_PCM_BASE 16 @@ -402,6 +406,22 @@ struct snd_sof_widget { u32 num_sink_pins; u32 num_source_pins; + /* + * The sink/source pin binding array, it takes the form of + * [widget_name_connected_to_pin0, widget_name_connected_to_pin1, ...], + * with the index as the queue ID. + * + * The array is used for special pin binding. Note that even if there + * is only one sink/source pin requires special pin binding, pin binding + * should be defined for all sink/source pins in topology, for pin(s) that + * are not used, give the value "NotConnected". + * + * If pin binding is not defined in topology, nothing to parse in the kernel, + * sink_pin_binding and src_pin_binding shall be NULL. + */ + char **sink_pin_binding; + char **src_pin_binding; + void *private; /* core does not touch this */ }; @@ -546,6 +566,7 @@ int get_token_u16(void *elem, void *object, u32 offset); int get_token_comp_format(void *elem, void *object, u32 offset); int get_token_dai_type(void *elem, void *object, u32 offset); int get_token_uuid(void *elem, void *object, u32 offset); +int get_token_string(void *elem, void *object, u32 offset); int sof_update_ipc_object(struct snd_soc_component *scomp, void *object, enum sof_tokens token_id, struct snd_sof_tuple *tuples, int num_tuples, size_t object_size, int token_instance_num); diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index e839fcdc938b..3b1290d34131 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -360,6 +360,21 @@ int get_token_uuid(void *elem, void *object, u32 offset) return 0; } +/* + * The string gets from topology will be stored in heap, the owner only + * holds a char* member point to the heap. + */ +int get_token_string(void *elem, void *object, u32 offset) +{ + /* "dst" here points to the char* member of the owner */ + char **dst = (char **)((u8 *)object + offset); + + *dst = kstrdup(elem, GFP_KERNEL); + if (!*dst) + return -ENOMEM; + return 0; +}; + int get_token_comp_format(void *elem, void *object, u32 offset) { u32 *val = (u32 *)((u8 *)object + offset); @@ -399,6 +414,16 @@ static const struct sof_topology_token comp_pin_tokens[] = { offsetof(struct snd_sof_widget, num_source_pins)}, }; +static const struct sof_topology_token comp_sink_pin_binding_tokens[] = { + {SOF_TKN_COMP_SINK_PIN_BINDING_WNAME, SND_SOC_TPLG_TUPLE_TYPE_STRING, + get_token_string, 0}, +}; + +static const struct sof_topology_token comp_src_pin_binding_tokens[] = { + {SOF_TKN_COMP_SRC_PIN_BINDING_WNAME, SND_SOC_TPLG_TUPLE_TYPE_STRING, + get_token_string, 0}, +}; + /** * sof_parse_uuid_tokens - Parse multiple sets of UUID tokens * @scomp: pointer to soc component @@ -579,7 +604,7 @@ static int sof_parse_string_tokens(struct snd_soc_component *scomp, { struct snd_soc_tplg_vendor_string_elem *elem; int found = 0; - int i, j; + int i, j, ret; /* parse element by element */ for (i = 0; i < le32_to_cpu(array->num_elems); i++) { @@ -596,7 +621,9 @@ static int sof_parse_string_tokens(struct snd_soc_component *scomp, continue; /* matched - now load token */ - tokens[j].get_token(elem->string, object, offset + tokens[j].offset); + ret = tokens[j].get_token(elem->string, object, offset + tokens[j].offset); + if (ret < 0) + return ret; found++; } @@ -676,6 +703,7 @@ static int sof_parse_token_sets(struct snd_soc_component *scomp, int found = 0; int total = 0; int asize; + int ret; while (array_size > 0 && total < count * token_instance_num) { asize = le32_to_cpu(array->size); @@ -702,8 +730,15 @@ static int sof_parse_token_sets(struct snd_soc_component *scomp, array); break; case SND_SOC_TPLG_TUPLE_TYPE_STRING: - found += sof_parse_string_tokens(scomp, object, offset, tokens, count, - array); + + ret = sof_parse_string_tokens(scomp, object, offset, tokens, count, + array); + if (ret < 0) { + dev_err(scomp->dev, "error: no memory to copy string token\n"); + return ret; + } + + found += ret; break; case SND_SOC_TPLG_TUPLE_TYPE_BOOL: case SND_SOC_TPLG_TUPLE_TYPE_BYTE: @@ -1258,6 +1293,79 @@ err: return ret; } +static void sof_free_pin_binding(struct snd_sof_widget *swidget, + bool pin_type) +{ + char **pin_binding; + u32 num_pins; + int i; + + if (pin_type == SOF_PIN_TYPE_SINK) { + pin_binding = swidget->sink_pin_binding; + num_pins = swidget->num_sink_pins; + } else { + pin_binding = swidget->src_pin_binding; + num_pins = swidget->num_source_pins; + } + + if (pin_binding) { + for (i = 0; i < num_pins; i++) + kfree(pin_binding[i]); + } + + kfree(pin_binding); +} + +static int sof_parse_pin_binding(struct snd_sof_widget *swidget, + struct snd_soc_tplg_private *priv, bool pin_type) +{ + const struct sof_topology_token *pin_binding_token; + char *pin_binding[SOF_WIDGET_MAX_NUM_PINS]; + int token_count; + u32 num_pins; + char **pb; + int ret; + int i; + + if (pin_type == SOF_PIN_TYPE_SINK) { + num_pins = swidget->num_sink_pins; + pin_binding_token = comp_sink_pin_binding_tokens; + token_count = ARRAY_SIZE(comp_sink_pin_binding_tokens); + } else { + num_pins = swidget->num_source_pins; + pin_binding_token = comp_src_pin_binding_tokens; + token_count = ARRAY_SIZE(comp_src_pin_binding_tokens); + } + + memset(pin_binding, 0, SOF_WIDGET_MAX_NUM_PINS * sizeof(char *)); + ret = sof_parse_token_sets(swidget->scomp, pin_binding, pin_binding_token, + token_count, priv->array, le32_to_cpu(priv->size), + num_pins, sizeof(char *)); + if (ret < 0) + goto err; + + /* copy pin binding array to swidget only if it is defined in topology */ + if (pin_binding[0]) { + pb = kmemdup(pin_binding, num_pins * sizeof(char *), GFP_KERNEL); + if (!pb) { + ret = -ENOMEM; + goto err; + } + if (pin_type == SOF_PIN_TYPE_SINK) + swidget->sink_pin_binding = pb; + else + swidget->src_pin_binding = pb; + } + + return 0; + +err: + for (i = 0; i < num_pins; i++) + kfree(pin_binding[i]); + + return ret; +} + /* external widget init - used for any driver specific init */ static int sof_widget_ready(struct snd_soc_component *scomp, int index, struct snd_soc_dapm_widget *w, @@ -1301,6 +1409,26 @@ static int sof_widget_ready(struct snd_soc_component *scomp, int index, return -EINVAL; } + if (swidget->num_sink_pins > 1) { + ret = sof_parse_pin_binding(swidget, priv, SOF_PIN_TYPE_SINK); + /* on parsing error, pin binding is not allocated, nothing to free. */ + if (ret < 0) { + dev_err(scomp->dev, "failed to parse sink pin binding for %s\n", + w->name); + return ret; + } + } + + if (swidget->num_source_pins > 1) { + ret = sof_parse_pin_binding(swidget, priv, SOF_PIN_TYPE_SOURCE); + /* on parsing error, pin binding is not allocated, nothing to free. */ + if (ret < 0) { + dev_err(scomp->dev, "failed to parse source pin binding for %s\n", + w->name); + return ret; + } + } + dev_dbg(scomp->dev, "tplg: widget %d (%s) is ready [type: %d, pipe: %d, pins: %d / %d, stream: %s]\n", swidget->comp_id, w->name, swidget->id, index, @@ -1496,6 +1624,9 @@ out: if (widget_ops[swidget->id].ipc_free) widget_ops[swidget->id].ipc_free(swidget); + sof_free_pin_binding(swidget, SOF_PIN_TYPE_SINK); + sof_free_pin_binding(swidget, SOF_PIN_TYPE_SOURCE); + kfree(swidget->tuples); /* remove and free swidget object */ |