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authorBenjamin Tissoires <benjamin.tissoires@gmail.com>2013-01-31 17:22:23 +0100
committerJiri Kosina <jkosina@suse.cz>2013-02-05 12:07:39 +0100
commit6d85d037d6247b06e1060b5e5ad0e4854a7d1e3b (patch)
treed2340762020aa4c8512a21d74f564d73d3f9fde8
parentcf5425bfcd6909f9831a00bc06ccb9a5b163766a (diff)
HID: core: add "report" hook, called once the report has been parsed
This callback is called when the parsing of the report has been done by hid-core (so after the calls to .event). The hid drivers can now have access to the whole report by relying on the values stored in the different fields. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
-rw-r--r--drivers/hid/hid-core.c4
-rw-r--r--include/linux/hid.h2
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index eb2ee11b641..754098a7dd4 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1195,6 +1195,7 @@ int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
{
struct hid_report_enum *report_enum = hid->report_enum + type;
struct hid_report *report;
+ struct hid_driver *hdrv;
unsigned int a;
int rsize, csize = size;
u8 *cdata = data;
@@ -1231,6 +1232,9 @@ int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
if (hid->claimed != HID_CLAIMED_HIDRAW) {
for (a = 0; a < report->maxfield; a++)
hid_input_field(hid, report->field[a], cdata, interrupt);
+ hdrv = hid->driver;
+ if (hdrv && hdrv->report)
+ hdrv->report(hid, report);
}
if (hid->claimed & HID_CLAIMED_INPUT)
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 7330a0fef0c..9f56e9040f6 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -589,6 +589,7 @@ struct hid_usage_id {
* @raw_event: if report in report_table, this hook is called (NULL means nop)
* @usage_table: on which events to call event (NULL means all)
* @event: if usage in usage_table, this hook is called (NULL means nop)
+ * @report: this hook is called after parsing a report (NULL means nop)
* @report_fixup: called before report descriptor parsing (NULL means nop)
* @input_mapping: invoked on input registering before mapping an usage
* @input_mapped: invoked on input registering after mapping an usage
@@ -627,6 +628,7 @@ struct hid_driver {
const struct hid_usage_id *usage_table;
int (*event)(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value);
+ void (*report)(struct hid_device *hdev, struct hid_report *report);
__u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
unsigned int *size);