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-rw-r--r--net/bluetooth/hidp/core.c116
-rw-r--r--net/bluetooth/hidp/hidp.h4
2 files changed, 61 insertions, 59 deletions
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 292e619db896..8181ea4bc2f2 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -223,51 +223,6 @@ static void hidp_input_report(struct hidp_session *session, struct sk_buff *skb)
input_sync(dev);
}
-static int hidp_send_report(struct hidp_session *session, struct hid_report *report)
-{
- unsigned char hdr;
- u8 *buf;
- int rsize, ret;
-
- buf = hid_alloc_report_buf(report, GFP_ATOMIC);
- if (!buf)
- return -EIO;
-
- hid_output_report(report, buf);
- hdr = HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT;
-
- rsize = ((report->size - 1) >> 3) + 1 + (report->id > 0);
- ret = hidp_send_intr_message(session, hdr, buf, rsize);
-
- kfree(buf);
- return ret;
-}
-
-static int hidp_hidinput_event(struct input_dev *dev, unsigned int type,
- unsigned int code, int value)
-{
- struct hid_device *hid = input_get_drvdata(dev);
- struct hidp_session *session = hid->driver_data;
- struct hid_field *field;
- int offset;
-
- BT_DBG("session %p type %d code %d value %d",
- session, type, code, value);
-
- if (type != EV_LED)
- return -1;
-
- offset = hidinput_find_field(hid, type, code, &field);
- if (offset == -1) {
- hid_warn(dev, "event field not found\n");
- return -1;
- }
-
- hid_set_field(field, offset, value);
-
- return hidp_send_report(session, field->report);
-}
-
static int hidp_get_raw_report(struct hid_device *hid,
unsigned char report_number,
unsigned char *data, size_t count,
@@ -353,17 +308,24 @@ err:
return ret;
}
-static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, size_t count,
- unsigned char report_type)
+static int hidp_set_raw_report(struct hid_device *hid, unsigned char reportnum,
+ unsigned char *data, size_t count,
+ unsigned char report_type)
{
struct hidp_session *session = hid->driver_data;
int ret;
- if (report_type == HID_OUTPUT_REPORT) {
- report_type = HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT;
- return hidp_send_intr_message(session, report_type,
- data, count);
- } else if (report_type != HID_FEATURE_REPORT) {
+ switch (report_type) {
+ case HID_FEATURE_REPORT:
+ report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE;
+ break;
+ case HID_INPUT_REPORT:
+ report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_INPUT;
+ break;
+ case HID_OUTPUT_REPORT:
+ report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_OUPUT;
+ break;
+ default:
return -EINVAL;
}
@@ -371,8 +333,8 @@ static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, s
return -ERESTARTSYS;
/* Set up our wait, and send the report request to the device. */
+ data[0] = reportnum;
set_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags);
- report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE;
ret = hidp_send_ctrl_message(session, report_type, data, count);
if (ret)
goto err;
@@ -411,6 +373,29 @@ err:
return ret;
}
+static int hidp_output_report(struct hid_device *hid, __u8 *data, size_t count)
+{
+ struct hidp_session *session = hid->driver_data;
+
+ return hidp_send_intr_message(session,
+ HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT,
+ data, count);
+}
+
+static int hidp_raw_request(struct hid_device *hid, unsigned char reportnum,
+ __u8 *buf, size_t len, unsigned char rtype,
+ int reqtype)
+{
+ switch (reqtype) {
+ case HID_REQ_GET_REPORT:
+ return hidp_get_raw_report(hid, reportnum, buf, len, rtype);
+ case HID_REQ_SET_REPORT:
+ return hidp_set_raw_report(hid, reportnum, buf, len, rtype);
+ default:
+ return -EIO;
+ }
+}
+
static void hidp_idle_timeout(unsigned long arg)
{
struct hidp_session *session = (struct hidp_session *) arg;
@@ -430,6 +415,16 @@ static void hidp_del_timer(struct hidp_session *session)
del_timer(&session->timer);
}
+static void hidp_process_report(struct hidp_session *session,
+ int type, const u8 *data, int len, int intr)
+{
+ if (len > HID_MAX_BUFFER_SIZE)
+ len = HID_MAX_BUFFER_SIZE;
+
+ memcpy(session->input_buf, data, len);
+ hid_input_report(session->hid, type, session->input_buf, len, intr);
+}
+
static void hidp_process_handshake(struct hidp_session *session,
unsigned char param)
{
@@ -502,7 +497,8 @@ static int hidp_process_data(struct hidp_session *session, struct sk_buff *skb,
hidp_input_report(session, skb);
if (session->hid)
- hid_input_report(session->hid, HID_INPUT_REPORT, skb->data, skb->len, 0);
+ hidp_process_report(session, HID_INPUT_REPORT,
+ skb->data, skb->len, 0);
break;
case HIDP_DATA_RTYPE_OTHER:
@@ -584,7 +580,8 @@ static void hidp_recv_intr_frame(struct hidp_session *session,
hidp_input_report(session, skb);
if (session->hid) {
- hid_input_report(session->hid, HID_INPUT_REPORT, skb->data, skb->len, 1);
+ hidp_process_report(session, HID_INPUT_REPORT,
+ skb->data, skb->len, 1);
BT_DBG("report len %d", skb->len);
}
} else {
@@ -727,7 +724,8 @@ static struct hid_ll_driver hidp_hid_driver = {
.stop = hidp_stop,
.open = hidp_open,
.close = hidp_close,
- .hidinput_input_event = hidp_hidinput_event,
+ .raw_request = hidp_raw_request,
+ .output_report = hidp_output_report,
};
/* This function sets up the hid device. It does not add it
@@ -769,15 +767,15 @@ static int hidp_setup_hid(struct hidp_session *session,
snprintf(hid->phys, sizeof(hid->phys), "%pMR",
&l2cap_pi(session->ctrl_sock->sk)->chan->src);
+ /* NOTE: Some device modules depend on the dst address being stored in
+ * uniq. Please be aware of this before making changes to this behavior.
+ */
snprintf(hid->uniq, sizeof(hid->uniq), "%pMR",
&l2cap_pi(session->ctrl_sock->sk)->chan->dst);
hid->dev.parent = &session->conn->hcon->dev;
hid->ll_driver = &hidp_hid_driver;
- hid->hid_get_raw_report = hidp_get_raw_report;
- hid->hid_output_raw_report = hidp_output_raw_report;
-
/* True if device is blacklisted in drivers/hid/hid-core.c */
if (hid_ignore(hid)) {
hid_destroy_device(session->hid);
diff --git a/net/bluetooth/hidp/hidp.h b/net/bluetooth/hidp/hidp.h
index ab5241400cf7..8798492a6e99 100644
--- a/net/bluetooth/hidp/hidp.h
+++ b/net/bluetooth/hidp/hidp.h
@@ -24,6 +24,7 @@
#define __HIDP_H
#include <linux/types.h>
+#include <linux/hid.h>
#include <linux/kref.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/l2cap.h>
@@ -179,6 +180,9 @@ struct hidp_session {
/* Used in hidp_output_raw_report() */
int output_report_success; /* boolean */
+
+ /* temporary input buffer */
+ u8 input_buf[HID_MAX_BUFFER_SIZE];
};
/* HIDP init defines */
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-23 03:01:53 +0300