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-rw-r--r--drivers/hid/hid-sensor-hub.c188
-rw-r--r--include/linux/hid-sensor-hub.h6
2 files changed, 106 insertions, 88 deletions
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index ad2b8692ad77..5ab93cb18b88 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -56,9 +56,9 @@ struct sensor_hub_pending {
* @dyn_callback_lock: spin lock to protect callback list
* @hid_sensor_hub_client_devs: Stores all MFD cells for a hub instance.
* @hid_sensor_client_cnt: Number of MFD cells, (no of sensors attached).
+ * @ref_cnt: Number of MFD clients have opened this device
*/
struct sensor_hub_data {
- struct hid_sensor_hub_device *hsdev;
struct mutex mutex;
spinlock_t lock;
struct sensor_hub_pending pending;
@@ -67,6 +67,7 @@ struct sensor_hub_data {
struct mfd_cell *hid_sensor_hub_client_devs;
int hid_sensor_client_cnt;
unsigned long quirks;
+ int ref_cnt;
};
/**
@@ -79,6 +80,7 @@ struct sensor_hub_data {
struct hid_sensor_hub_callbacks_list {
struct list_head list;
u32 usage_id;
+ struct hid_sensor_hub_device *hsdev;
struct hid_sensor_hub_callbacks *usage_callback;
void *priv;
};
@@ -97,20 +99,18 @@ static struct hid_report *sensor_hub_report(int id, struct hid_device *hdev,
return NULL;
}
-static int sensor_hub_get_physical_device_count(
- struct hid_report_enum *report_enum)
+static int sensor_hub_get_physical_device_count(struct hid_device *hdev)
{
- struct hid_report *report;
- struct hid_field *field;
- int cnt = 0;
+ int i;
+ int count = 0;
- list_for_each_entry(report, &report_enum->report_list, list) {
- field = report->field[0];
- if (report->maxfield && field && field->physical)
- cnt++;
+ for (i = 0; i < hdev->maxcollection; ++i) {
+ struct hid_collection *collection = &hdev->collection[i];
+ if (collection->type == HID_COLLECTION_PHYSICAL)
+ ++count;
}
- return cnt;
+ return count;
}
static void sensor_hub_fill_attr_info(
@@ -128,15 +128,23 @@ static void sensor_hub_fill_attr_info(
static struct hid_sensor_hub_callbacks *sensor_hub_get_callback(
struct hid_device *hdev,
- u32 usage_id, void **priv)
+ u32 usage_id,
+ int collection_index,
+ struct hid_sensor_hub_device **hsdev,
+ void **priv)
{
struct hid_sensor_hub_callbacks_list *callback;
struct sensor_hub_data *pdata = hid_get_drvdata(hdev);
spin_lock(&pdata->dyn_callback_lock);
list_for_each_entry(callback, &pdata->dyn_callback_list, list)
- if (callback->usage_id == usage_id) {
+ if (callback->usage_id == usage_id &&
+ (collection_index >=
+ callback->hsdev->start_collection_index) &&
+ (collection_index <
+ callback->hsdev->end_collection_index)) {
*priv = callback->priv;
+ *hsdev = callback->hsdev;
spin_unlock(&pdata->dyn_callback_lock);
return callback->usage_callback;
}
@@ -154,7 +162,8 @@ int sensor_hub_register_callback(struct hid_sensor_hub_device *hsdev,
spin_lock(&pdata->dyn_callback_lock);
list_for_each_entry(callback, &pdata->dyn_callback_list, list)
- if (callback->usage_id == usage_id) {
+ if (callback->usage_id == usage_id &&
+ callback->hsdev == hsdev) {
spin_unlock(&pdata->dyn_callback_lock);
return -EINVAL;
}
@@ -163,6 +172,7 @@ int sensor_hub_register_callback(struct hid_sensor_hub_device *hsdev,
spin_unlock(&pdata->dyn_callback_lock);
return -ENOMEM;
}
+ callback->hsdev = hsdev;
callback->usage_callback = usage_callback;
callback->usage_id = usage_id;
callback->priv = NULL;
@@ -181,7 +191,8 @@ int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev,
spin_lock(&pdata->dyn_callback_lock);
list_for_each_entry(callback, &pdata->dyn_callback_list, list)
- if (callback->usage_id == usage_id) {
+ if (callback->usage_id == usage_id &&
+ callback->hsdev == hsdev) {
list_del(&callback->list);
kfree(callback);
break;
@@ -320,8 +331,7 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
struct hid_sensor_hub_attribute_info *info)
{
int ret = -1;
- int i, j;
- int collection_index = -1;
+ int i;
struct hid_report *report;
struct hid_field *field;
struct hid_report_enum *report_enum;
@@ -335,44 +345,31 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
info->units = -1;
info->unit_expo = -1;
- for (i = 0; i < hdev->maxcollection; ++i) {
- struct hid_collection *collection = &hdev->collection[i];
- if (usage_id == collection->usage) {
- collection_index = i;
- break;
- }
- }
- if (collection_index == -1)
- goto err_ret;
-
report_enum = &hdev->report_enum[type];
list_for_each_entry(report, &report_enum->report_list, list) {
for (i = 0; i < report->maxfield; ++i) {
field = report->field[i];
- if (field->physical == usage_id &&
- field->logical == attr_usage_id) {
- sensor_hub_fill_attr_info(info, i, report->id,
- field);
- ret = 0;
- } else {
- for (j = 0; j < field->maxusage; ++j) {
- if (field->usage[j].hid ==
- attr_usage_id &&
- field->usage[j].collection_index ==
- collection_index) {
- sensor_hub_fill_attr_info(info,
- i, report->id, field);
- ret = 0;
- break;
- }
+ if (field->maxusage) {
+ if (field->physical == usage_id &&
+ (field->logical == attr_usage_id ||
+ field->usage[0].hid ==
+ attr_usage_id) &&
+ (field->usage[0].collection_index >=
+ hsdev->start_collection_index) &&
+ (field->usage[0].collection_index <
+ hsdev->end_collection_index)) {
+
+ sensor_hub_fill_attr_info(info, i,
+ report->id,
+ field);
+ ret = 0;
+ break;
}
}
- if (ret == 0)
- break;
}
+
}
-err_ret:
return ret;
}
EXPORT_SYMBOL_GPL(sensor_hub_input_get_attribute_info);
@@ -388,7 +385,7 @@ static int sensor_hub_suspend(struct hid_device *hdev, pm_message_t message)
list_for_each_entry(callback, &pdata->dyn_callback_list, list) {
if (callback->usage_callback->suspend)
callback->usage_callback->suspend(
- pdata->hsdev, callback->priv);
+ callback->hsdev, callback->priv);
}
spin_unlock(&pdata->dyn_callback_lock);
@@ -405,7 +402,7 @@ static int sensor_hub_resume(struct hid_device *hdev)
list_for_each_entry(callback, &pdata->dyn_callback_list, list) {
if (callback->usage_callback->resume)
callback->usage_callback->resume(
- pdata->hsdev, callback->priv);
+ callback->hsdev, callback->priv);
}
spin_unlock(&pdata->dyn_callback_lock);
@@ -432,6 +429,7 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
struct hid_sensor_hub_callbacks *callback = NULL;
struct hid_collection *collection = NULL;
void *priv = NULL;
+ struct hid_sensor_hub_device *hsdev = NULL;
hid_dbg(hdev, "sensor_hub_raw_event report id:0x%x size:%d type:%d\n",
report->id, size, report->type);
@@ -466,23 +464,26 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
report->field[i]->usage->collection_index];
hid_dbg(hdev, "collection->usage %x\n",
collection->usage);
- callback = sensor_hub_get_callback(pdata->hsdev->hdev,
- report->field[i]->physical,
- &priv);
+
+ callback = sensor_hub_get_callback(hdev,
+ report->field[i]->physical,
+ report->field[i]->usage[0].collection_index,
+ &hsdev, &priv);
+
if (callback && callback->capture_sample) {
if (report->field[i]->logical)
- callback->capture_sample(pdata->hsdev,
+ callback->capture_sample(hsdev,
report->field[i]->logical, sz, ptr,
callback->pdev);
else
- callback->capture_sample(pdata->hsdev,
+ callback->capture_sample(hsdev,
report->field[i]->usage->hid, sz, ptr,
callback->pdev);
}
ptr += sz;
}
if (callback && collection && callback->send_event)
- callback->send_event(pdata->hsdev, collection->usage,
+ callback->send_event(hsdev, collection->usage,
callback->pdev);
spin_unlock_irqrestore(&pdata->lock, flags);
@@ -495,7 +496,7 @@ int sensor_hub_device_open(struct hid_sensor_hub_device *hsdev)
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
mutex_lock(&data->mutex);
- if (!hsdev->ref_cnt) {
+ if (!data->ref_cnt) {
ret = hid_hw_open(hsdev->hdev);
if (ret) {
hid_err(hsdev->hdev, "failed to open hid device\n");
@@ -503,7 +504,7 @@ int sensor_hub_device_open(struct hid_sensor_hub_device *hsdev)
return ret;
}
}
- hsdev->ref_cnt++;
+ data->ref_cnt++;
mutex_unlock(&data->mutex);
return ret;
@@ -515,8 +516,8 @@ void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev)
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
mutex_lock(&data->mutex);
- hsdev->ref_cnt--;
- if (!hsdev->ref_cnt)
+ data->ref_cnt--;
+ if (!data->ref_cnt)
hid_hw_close(hsdev->hdev);
mutex_unlock(&data->mutex);
}
@@ -563,26 +564,19 @@ static int sensor_hub_probe(struct hid_device *hdev,
struct sensor_hub_data *sd;
int i;
char *name;
- struct hid_report *report;
- struct hid_report_enum *report_enum;
- struct hid_field *field;
int dev_cnt;
+ struct hid_sensor_hub_device *hsdev;
+ struct hid_sensor_hub_device *last_hsdev = NULL;
sd = devm_kzalloc(&hdev->dev, sizeof(*sd), GFP_KERNEL);
if (!sd) {
hid_err(hdev, "cannot allocate Sensor data\n");
return -ENOMEM;
}
- sd->hsdev = devm_kzalloc(&hdev->dev, sizeof(*sd->hsdev), GFP_KERNEL);
- if (!sd->hsdev) {
- hid_err(hdev, "cannot allocate hid_sensor_hub_device\n");
- return -ENOMEM;
- }
+
hid_set_drvdata(hdev, sd);
sd->quirks = id->driver_data;
- sd->hsdev->hdev = hdev;
- sd->hsdev->vendor_id = hdev->vendor;
- sd->hsdev->product_id = hdev->product;
+
spin_lock_init(&sd->lock);
spin_lock_init(&sd->dyn_callback_lock);
mutex_init(&sd->mutex);
@@ -600,9 +594,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
}
INIT_LIST_HEAD(&sd->dyn_callback_list);
sd->hid_sensor_client_cnt = 0;
- report_enum = &hdev->report_enum[HID_INPUT_REPORT];
- dev_cnt = sensor_hub_get_physical_device_count(report_enum);
+ dev_cnt = sensor_hub_get_physical_device_count(hdev);
if (dev_cnt > HID_MAX_PHY_DEVICES) {
hid_err(hdev, "Invalid Physical device count\n");
ret = -EINVAL;
@@ -616,42 +609,63 @@ static int sensor_hub_probe(struct hid_device *hdev,
ret = -ENOMEM;
goto err_stop_hw;
}
- list_for_each_entry(report, &report_enum->report_list, list) {
- hid_dbg(hdev, "Report id:%x\n", report->id);
- field = report->field[0];
- if (report->maxfield && field &&
- field->physical) {
+
+ for (i = 0; i < hdev->maxcollection; ++i) {
+ struct hid_collection *collection = &hdev->collection[i];
+
+ if (collection->type == HID_COLLECTION_PHYSICAL) {
+
+ hsdev = kzalloc(sizeof(*hsdev), GFP_KERNEL);
+ if (!hsdev) {
+ hid_err(hdev, "cannot allocate hid_sensor_hub_device\n");
+ ret = -ENOMEM;
+ goto err_no_mem;
+ }
+ hsdev->hdev = hdev;
+ hsdev->vendor_id = hdev->vendor;
+ hsdev->product_id = hdev->product;
+ hsdev->start_collection_index = i;
+ if (last_hsdev)
+ last_hsdev->end_collection_index = i;
+ last_hsdev = hsdev;
name = kasprintf(GFP_KERNEL, "HID-SENSOR-%x",
- field->physical);
+ collection->usage);
if (name == NULL) {
hid_err(hdev, "Failed MFD device name\n");
ret = -ENOMEM;
- goto err_free_names;
+ goto err_no_mem;
}
sd->hid_sensor_hub_client_devs[
- sd->hid_sensor_client_cnt].id = PLATFORM_DEVID_AUTO;
+ sd->hid_sensor_client_cnt].id =
+ PLATFORM_DEVID_AUTO;
sd->hid_sensor_hub_client_devs[
sd->hid_sensor_client_cnt].name = name;
sd->hid_sensor_hub_client_devs[
sd->hid_sensor_client_cnt].platform_data =
- sd->hsdev;
+ hsdev;
sd->hid_sensor_hub_client_devs[
sd->hid_sensor_client_cnt].pdata_size =
- sizeof(*sd->hsdev);
- hid_dbg(hdev, "Adding %s:%p\n", name, sd);
+ sizeof(*hsdev);
+ hid_dbg(hdev, "Adding %s:%d\n", name,
+ hsdev->start_collection_index);
sd->hid_sensor_client_cnt++;
}
}
+ if (last_hsdev)
+ last_hsdev->end_collection_index = i;
+
ret = mfd_add_devices(&hdev->dev, 0, sd->hid_sensor_hub_client_devs,
sd->hid_sensor_client_cnt, NULL, 0, NULL);
if (ret < 0)
- goto err_free_names;
+ goto err_no_mem;
return ret;
-err_free_names:
- for (i = 0; i < sd->hid_sensor_client_cnt ; ++i)
+err_no_mem:
+ for (i = 0; i < sd->hid_sensor_client_cnt; ++i) {
kfree(sd->hid_sensor_hub_client_devs[i].name);
+ kfree(sd->hid_sensor_hub_client_devs[i].platform_data);
+ }
kfree(sd->hid_sensor_hub_client_devs);
err_stop_hw:
hid_hw_stop(hdev);
@@ -673,8 +687,10 @@ static void sensor_hub_remove(struct hid_device *hdev)
complete(&data->pending.ready);
spin_unlock_irqrestore(&data->lock, flags);
mfd_remove_devices(&hdev->dev);
- for (i = 0; i < data->hid_sensor_client_cnt ; ++i)
+ for (i = 0; i < data->hid_sensor_client_cnt; ++i) {
kfree(data->hid_sensor_hub_client_devs[i].name);
+ kfree(data->hid_sensor_hub_client_devs[i].platform_data);
+ }
kfree(data->hid_sensor_hub_client_devs);
hid_set_drvdata(hdev, NULL);
mutex_destroy(&data->mutex);
diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
index 205eba0326af..b70cfd7ff29c 100644
--- a/include/linux/hid-sensor-hub.h
+++ b/include/linux/hid-sensor-hub.h
@@ -51,13 +51,15 @@ struct hid_sensor_hub_attribute_info {
* @hdev: Stores the hid instance.
* @vendor_id: Vendor id of hub device.
* @product_id: Product id of hub device.
- * @ref_cnt: Number of MFD clients have opened this device
+ * @start_collection_index: Starting index for a phy type collection
+ * @end_collection_index: Last index for a phy type collection
*/
struct hid_sensor_hub_device {
struct hid_device *hdev;
u32 vendor_id;
u32 product_id;
- int ref_cnt;
+ int start_collection_index;
+ int end_collection_index;
};
/**
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 12:50:56 +0000