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Diffstat (limited to 'sound/soc/sdca/sdca_functions.c')
-rw-r--r--sound/soc/sdca/sdca_functions.c165
1 files changed, 163 insertions, 2 deletions
diff --git a/sound/soc/sdca/sdca_functions.c b/sound/soc/sdca/sdca_functions.c
index de213a69e0da..93767e73bc5f 100644
--- a/sound/soc/sdca/sdca_functions.c
+++ b/sound/soc/sdca/sdca_functions.c
@@ -19,6 +19,7 @@
#include <linux/types.h>
#include <sound/sdca.h>
#include <sound/sdca_function.h>
+#include <sound/sdca_hid.h>
/*
* Should be long enough to encompass all the MIPI DisCo properties.
@@ -880,7 +881,8 @@ static int find_sdca_entity_control(struct device *dev, struct sdca_entity *enti
control->value = tmp;
control->has_fixed = true;
}
-
+ fallthrough;
+ case SDCA_ACCESS_MODE_RO:
control->deferrable = fwnode_property_read_bool(control_node,
"mipi-sdca-control-deferrable");
break;
@@ -911,6 +913,8 @@ static int find_sdca_entity_control(struct device *dev, struct sdca_entity *enti
&tmp);
if (!ret)
control->interrupt_position = tmp;
+ else
+ control->interrupt_position = SDCA_NO_INTERRUPT;
control->label = find_sdca_control_label(dev, entity, control);
if (!control->label)
@@ -1220,6 +1224,93 @@ bad_list:
return -EINVAL;
}
+static int
+find_sdca_entity_hide(struct device *dev, struct fwnode_handle *function_node,
+ struct fwnode_handle *entity_node, struct sdca_entity *entity)
+{
+ struct sdca_entity_hide *hide = &entity->hide;
+ unsigned int delay, *af_list = hide->af_number_list;
+ int nval, ret;
+ unsigned char *report_desc = NULL;
+
+ ret = fwnode_property_read_u32(entity_node,
+ "mipi-sdca-RxUMP-ownership-transition-maxdelay", &delay);
+ if (!ret)
+ hide->max_delay = delay;
+
+ nval = fwnode_property_count_u32(entity_node, "mipi-sdca-HIDTx-supported-report-ids");
+ if (nval > 0) {
+ hide->num_hidtx_ids = nval;
+ hide->hidtx_ids = devm_kcalloc(dev, hide->num_hidtx_ids,
+ sizeof(*hide->hidtx_ids), GFP_KERNEL);
+ if (!hide->hidtx_ids)
+ return -ENOMEM;
+
+ ret = fwnode_property_read_u32_array(entity_node,
+ "mipi-sdca-HIDTx-supported-report-ids",
+ hide->hidtx_ids,
+ hide->num_hidtx_ids);
+ if (ret < 0)
+ return ret;
+ }
+
+ nval = fwnode_property_count_u32(entity_node, "mipi-sdca-HIDRx-supported-report-ids");
+ if (nval > 0) {
+ hide->num_hidrx_ids = nval;
+ hide->hidrx_ids = devm_kcalloc(dev, hide->num_hidrx_ids,
+ sizeof(*hide->hidrx_ids), GFP_KERNEL);
+ if (!hide->hidrx_ids)
+ return -ENOMEM;
+
+ ret = fwnode_property_read_u32_array(entity_node,
+ "mipi-sdca-HIDRx-supported-report-ids",
+ hide->hidrx_ids,
+ hide->num_hidrx_ids);
+ if (ret < 0)
+ return ret;
+ }
+
+ nval = fwnode_property_count_u32(entity_node, "mipi-sdca-hide-related-audio-function-list");
+ if (nval <= 0) {
+ dev_err(dev, "%pfwP: audio function numbers list missing: %d\n",
+ entity_node, nval);
+ return -EINVAL;
+ } else if (nval > SDCA_MAX_FUNCTION_COUNT) {
+ dev_err(dev, "%pfwP: maximum number of audio function exceeded\n", entity_node);
+ return -EINVAL;
+ }
+
+ hide->hide_reside_function_num = nval;
+ fwnode_property_read_u32_array(entity_node,
+ "mipi-sdca-hide-related-audio-function-list", af_list, nval);
+
+ nval = fwnode_property_count_u8(function_node, "mipi-sdca-hid-descriptor");
+ if (nval)
+ fwnode_property_read_u8_array(function_node, "mipi-sdca-hid-descriptor",
+ (u8 *)&hide->hid_desc, nval);
+
+ if (hide->hid_desc.bNumDescriptors) {
+ nval = fwnode_property_count_u8(function_node, "mipi-sdca-report-descriptor");
+ if (nval) {
+ report_desc = devm_kzalloc(dev, nval, GFP_KERNEL);
+ if (!report_desc)
+ return -ENOMEM;
+ hide->hid_report_desc = report_desc;
+ fwnode_property_read_u8_array(function_node, "mipi-sdca-report-descriptor",
+ report_desc, nval);
+
+ /* add HID device */
+ ret = sdca_add_hid_device(dev, entity);
+ if (ret) {
+ dev_err(dev, "%pfwP: failed to add HID device: %d\n", entity_node, ret);
+ return ret;
+ }
+ }
+ }
+
+ return 0;
+}
+
static int find_sdca_entity(struct device *dev,
struct fwnode_handle *function_node,
struct fwnode_handle *entity_node,
@@ -1261,6 +1352,9 @@ static int find_sdca_entity(struct device *dev,
case SDCA_ENTITY_TYPE_GE:
ret = find_sdca_entity_ge(dev, entity_node, entity);
break;
+ case SDCA_ENTITY_TYPE_HIDE:
+ ret = find_sdca_entity_hide(dev, function_node, entity_node, entity);
+ break;
default:
break;
}
@@ -1541,7 +1635,6 @@ static int find_sdca_entity_connection(struct device *dev,
ret = fwnode_property_read_u64(entity_node, "mipi-sdca-input-pin-list", &pin_list);
if (ret == -EINVAL) {
/* Allow missing pin lists, assume no pins. */
- dev_warn(dev, "%s: missing pin list\n", entity->label);
return 0;
} else if (ret) {
dev_err(dev, "%s: failed to read pin list: %d\n", entity->label, ret);
@@ -1848,5 +1941,73 @@ int sdca_parse_function(struct device *dev,
}
EXPORT_SYMBOL_NS(sdca_parse_function, "SND_SOC_SDCA");
+struct sdca_control *sdca_selector_find_control(struct device *dev,
+ struct sdca_entity *entity,
+ const int sel)
+{
+ int i;
+
+ for (i = 0; i < entity->num_controls; i++) {
+ struct sdca_control *control = &entity->controls[i];
+
+ if (control->sel == sel)
+ return control;
+ }
+
+ dev_err(dev, "%s: control %#x: missing\n", entity->label, sel);
+ return NULL;
+}
+EXPORT_SYMBOL_NS(sdca_selector_find_control, "SND_SOC_SDCA");
+
+struct sdca_control_range *sdca_control_find_range(struct device *dev,
+ struct sdca_entity *entity,
+ struct sdca_control *control,
+ int cols, int rows)
+{
+ struct sdca_control_range *range = &control->range;
+
+ if ((cols && range->cols != cols) || (rows && range->rows != rows) ||
+ !range->data) {
+ dev_err(dev, "%s: control %#x: ranges invalid (%d,%d)\n",
+ entity->label, control->sel, range->cols, range->rows);
+ return NULL;
+ }
+
+ return range;
+}
+EXPORT_SYMBOL_NS(sdca_control_find_range, "SND_SOC_SDCA");
+
+struct sdca_control_range *sdca_selector_find_range(struct device *dev,
+ struct sdca_entity *entity,
+ int sel, int cols, int rows)
+{
+ struct sdca_control *control;
+
+ control = sdca_selector_find_control(dev, entity, sel);
+ if (!control)
+ return NULL;
+
+ return sdca_control_find_range(dev, entity, control, cols, rows);
+}
+EXPORT_SYMBOL_NS(sdca_selector_find_range, "SND_SOC_SDCA");
+
+struct sdca_cluster *sdca_id_find_cluster(struct device *dev,
+ struct sdca_function_data *function,
+ const int id)
+{
+ int i;
+
+ for (i = 0; i < function->num_clusters; i++) {
+ struct sdca_cluster *cluster = &function->clusters[i];
+
+ if (cluster->id == id)
+ return cluster;
+ }
+
+ dev_err(dev, "%s: cluster %#x: missing\n", function->desc->name, id);
+ return NULL;
+}
+EXPORT_SYMBOL_NS(sdca_id_find_cluster, "SND_SOC_SDCA");
+
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("SDCA library");
generated by cgit (git 2.34.1) at 2025-07-29 13:52:24 +0000