From 6d85d037d6247b06e1060b5e5ad0e4854a7d1e3b Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Thu, 31 Jan 2013 17:22:23 +0100 Subject: [PATCH] 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 Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 4 ++++ include/linux/hid.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index eb2ee11b6412..754098a7dd47 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 7330a0fef0c0..9f56e9040f66 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); -- 2.34.1