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path: root/drivers/hid/hid-logitech-dj.c
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Diffstat (limited to 'drivers/hid/hid-logitech-dj.c')
-rw-r--r--drivers/hid/hid-logitech-dj.c48
1 files changed, 3 insertions, 45 deletions
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index d9043434ddb3..5207591a598c 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -192,7 +192,6 @@ static struct hid_ll_driver logi_dj_ll_driver;
static int logi_dj_output_hidraw_report(struct hid_device *hid, u8 * buf,
size_t count,
unsigned char report_type);
-static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
@@ -233,7 +232,6 @@ static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] &
SPFUNCTION_DEVICE_LIST_EMPTY) {
dbg_hid("%s: device list is empty\n", __func__);
- djrcv_dev->querying_devices = false;
return;
}
@@ -244,12 +242,6 @@ static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
return;
}
- if (djrcv_dev->paired_dj_devices[dj_report->device_index]) {
- /* The device is already known. No need to reallocate it. */
- dbg_hid("%s: device is already known\n", __func__);
- return;
- }
-
dj_hiddev = hid_allocate_device();
if (IS_ERR(dj_hiddev)) {
dev_err(&djrcv_hdev->dev, "%s: hid_allocate_device failed\n",
@@ -313,7 +305,6 @@ static void delayedwork_callback(struct work_struct *work)
struct dj_report dj_report;
unsigned long flags;
int count;
- int retval;
dbg_hid("%s\n", __func__);
@@ -346,25 +337,6 @@ static void delayedwork_callback(struct work_struct *work)
logi_dj_recv_destroy_djhid_device(djrcv_dev, &dj_report);
break;
default:
- /* A normal report (i. e. not belonging to a pair/unpair notification)
- * arriving here, means that the report arrived but we did not have a
- * paired dj_device associated to the report's device_index, this
- * means that the original "device paired" notification corresponding
- * to this dj_device never arrived to this driver. The reason is that
- * hid-core discards all packets coming from a device while probe() is
- * executing. */
- if (!djrcv_dev->paired_dj_devices[dj_report.device_index]) {
- /* ok, we don't know the device, just re-ask the
- * receiver for the list of connected devices. */
- retval = logi_dj_recv_query_paired_devices(djrcv_dev);
- if (!retval) {
- /* everything went fine, so just leave */
- break;
- }
- dev_err(&djrcv_dev->hdev->dev,
- "%s:logi_dj_recv_query_paired_devices "
- "error:%d\n", __func__, retval);
- }
dbg_hid("%s: unexpected report type\n", __func__);
}
}
@@ -395,12 +367,6 @@ static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
if (!djdev) {
dbg_hid("djrcv_dev->paired_dj_devices[dj_report->device_index]"
" is NULL, index %d\n", dj_report->device_index);
- kfifo_in(&djrcv_dev->notif_fifo, dj_report, sizeof(struct dj_report));
-
- if (schedule_work(&djrcv_dev->work) == 0) {
- dbg_hid("%s: did not schedule the work item, was already "
- "queued\n", __func__);
- }
return;
}
@@ -431,12 +397,6 @@ static void logi_dj_recv_forward_report(struct dj_receiver_dev *djrcv_dev,
if (dj_device == NULL) {
dbg_hid("djrcv_dev->paired_dj_devices[dj_report->device_index]"
" is NULL, index %d\n", dj_report->device_index);
- kfifo_in(&djrcv_dev->notif_fifo, dj_report, sizeof(struct dj_report));
-
- if (schedule_work(&djrcv_dev->work) == 0) {
- dbg_hid("%s: did not schedule the work item, was already "
- "queued\n", __func__);
- }
return;
}
@@ -484,10 +444,6 @@ static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
struct dj_report *dj_report;
int retval;
- /* no need to protect djrcv_dev->querying_devices */
- if (djrcv_dev->querying_devices)
- return 0;
-
dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
if (!dj_report)
return -ENOMEM;
@@ -499,7 +455,6 @@ static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
return retval;
}
-
static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
unsigned timeout)
{
@@ -808,6 +763,9 @@ static int logi_dj_probe(struct hid_device *hdev,
goto llopen_failed;
}
+ /* Allow incoming packets to arrive: */
+ hid_device_io_start(hdev);
+
retval = logi_dj_recv_query_paired_devices(djrcv_dev);
if (retval < 0) {
dev_err(&hdev->dev, "%s:logi_dj_recv_query_paired_devices "