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Message-Id: <1393633237-26496-4-git-send-email-benjamin.tissoires@redhat.com>
Date: Fri, 28 Feb 2014 19:20:36 -0500
From: Benjamin Tissoires <benjamin.tissoires@...hat.com>
To: Benjamin Tissoires <benjamin.tissoires@...il.com>,
Jiri Kosina <jkosina@...e.cz>,
David Herrmann <dh.herrmann@...il.com>,
David Barksdale <dbarksdale@...ogix.com>,
linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] HID: sony: do not rely on hid_output_raw_report
hid_out_raw_report is going to be obsoleted as it is not part of the
unified HID low level transport documentation
(Documentation/hid/hid-transport.txt)
To do so, we need to introduce two new quirks:
* HID_QUIRK_NO_OUTPUT_REPORTS: this quirks prevents the transport
driver to use the interrupt channel to send output report (and thus
force to use HID_REQ_SET_REPORT command)
* HID_QUIRK_SKIP_OUTPUT_REPORT_ID: this one forces usbhid to not
include the report ID in the buffer it sends to the device through
HID_REQ_SET_REPORT in case of an output report
This also fixes a regression introduced in commit 3a75b24949a8
(HID: hidraw: replace hid_output_raw_report() calls by appropriates ones).
The hidraw API was not able to communicate with the PS3 SixAxis
controllers in USB mode.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
---
drivers/hid/hid-sony.c | 59 ++++++++++---------------------------------
drivers/hid/hidraw.c | 3 ++-
drivers/hid/usbhid/hid-core.c | 7 ++++-
include/linux/hid.h | 2 ++
4 files changed, 24 insertions(+), 47 deletions(-)
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index b5fe65e..08eac71 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -1007,45 +1007,6 @@ static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
}
/*
- * The Sony Sixaxis does not handle HID Output Reports on the Interrupt EP
- * like it should according to usbhid/hid-core.c::usbhid_output_raw_report()
- * so we need to override that forcing HID Output Reports on the Control EP.
- *
- * There is also another issue about HID Output Reports via USB, the Sixaxis
- * does not want the report_id as part of the data packet, so we have to
- * discard buf[0] when sending the actual control message, even for numbered
- * reports, humpf!
- */
-static int sixaxis_usb_output_raw_report(struct hid_device *hid, __u8 *buf,
- size_t count, unsigned char report_type)
-{
- struct usb_interface *intf = to_usb_interface(hid->dev.parent);
- struct usb_device *dev = interface_to_usbdev(intf);
- struct usb_host_interface *interface = intf->cur_altsetting;
- int report_id = buf[0];
- int ret;
-
- if (report_type == HID_OUTPUT_REPORT) {
- /* Don't send the Report ID */
- buf++;
- count--;
- }
-
- ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- HID_REQ_SET_REPORT,
- USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- ((report_type + 1) << 8) | report_id,
- interface->desc.bInterfaceNumber, buf, count,
- USB_CTRL_SET_TIMEOUT);
-
- /* Count also the Report ID, in case of an Output report. */
- if (ret > 0 && report_type == HID_OUTPUT_REPORT)
- ret++;
-
- return ret;
-}
-
-/*
* Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
* to "operational". Without this, the ps3 controller will not report any
* events.
@@ -1305,11 +1266,8 @@ static void sixaxis_state_worker(struct work_struct *work)
buf[10] |= sc->led_state[2] << 3;
buf[10] |= sc->led_state[3] << 4;
- if (sc->quirks & SIXAXIS_CONTROLLER_USB)
- hid_output_raw_report(sc->hdev, buf, sizeof(buf), HID_OUTPUT_REPORT);
- else
- hid_hw_raw_request(sc->hdev, 0x01, buf, sizeof(buf),
- HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
+ hid_hw_raw_request(sc->hdev, 0x01, buf, sizeof(buf), HID_OUTPUT_REPORT,
+ HID_REQ_SET_REPORT);
}
static void dualshock4_state_worker(struct work_struct *work)
@@ -1659,7 +1617,18 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
}
if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
- hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
+ /*
+ * The Sony Sixaxis does not handle HID Output Reports on the
+ * Interrupt EP like it could, so we need to forcing HID Output
+ * Reports to use HID_REQ_SET_REPORT on the Control EP.
+ *
+ * There is also another issue about HID Output Reports via USB,
+ * the Sixaxis does not want the report_id as part of the data
+ * packet, so we have to discard buf[0] when sending the actual
+ * control message, even for numbered reports, humpf!
+ */
+ hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS;
+ hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
ret = sixaxis_set_operational_usb(hdev);
sc->worker_initialized = 1;
INIT_WORK(&sc->state_worker, sixaxis_state_worker);
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 2cc484c..6537e58 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -149,7 +149,8 @@ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer,
goto out_free;
}
- if (report_type == HID_OUTPUT_REPORT) {
+ if ((report_type == HID_OUTPUT_REPORT) &&
+ !(dev->quirks & HID_QUIRK_NO_OUTPUT_REPORTS)) {
ret = hid_hw_output_report(dev, buf, count);
/*
* compatibility with old implementation of USB-HID and I2C-HID:
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 0d1d875..3bc7cad 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -894,7 +894,12 @@ static int usbhid_set_raw_report(struct hid_device *hid, unsigned int reportnum,
int ret, skipped_report_id = 0;
/* Byte 0 is the report number. Report data starts at byte 1.*/
- buf[0] = reportnum;
+ if ((rtype == HID_OUTPUT_REPORT) &&
+ (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORT_ID))
+ buf[0] = 0;
+ else
+ buf[0] = reportnum;
+
if (buf[0] == 0x0) {
/* Don't send the Report ID */
buf++;
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 5eb282e..2baf834 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -287,6 +287,8 @@ struct hid_item {
#define HID_QUIRK_NO_EMPTY_INPUT 0x00000100
#define HID_QUIRK_NO_INIT_INPUT_REPORTS 0x00000200
#define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00010000
+#define HID_QUIRK_SKIP_OUTPUT_REPORT_ID 0x00020000
+#define HID_QUIRK_NO_OUTPUT_REPORTS 0x00040000
#define HID_QUIRK_FULLSPEED_INTERVAL 0x10000000
#define HID_QUIRK_NO_INIT_REPORTS 0x20000000
#define HID_QUIRK_NO_IGNORE 0x40000000
--
1.8.5.3
--
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