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path: root/drivers/hid/hid-roccat-common.c
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Diffstat (limited to 'drivers/hid/hid-roccat-common.c')
-rw-r--r--drivers/hid/hid-roccat-common.c72
1 files changed, 65 insertions, 7 deletions
diff --git a/drivers/hid/hid-roccat-common.c b/drivers/hid/hid-roccat-common.c
index a6d93992c75..74f70403262 100644
--- a/drivers/hid/hid-roccat-common.c
+++ b/drivers/hid/hid-roccat-common.c
@@ -16,12 +16,12 @@
#include <linux/module.h>
#include "hid-roccat-common.h"
-static inline uint16_t roccat_common_feature_report(uint8_t report_id)
+static inline uint16_t roccat_common2_feature_report(uint8_t report_id)
{
return 0x300 | report_id;
}
-int roccat_common_receive(struct usb_device *usb_dev, uint report_id,
+int roccat_common2_receive(struct usb_device *usb_dev, uint report_id,
void *data, uint size)
{
char *buf;
@@ -34,16 +34,16 @@ int roccat_common_receive(struct usb_device *usb_dev, uint report_id,
len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
HID_REQ_GET_REPORT,
USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
- roccat_common_feature_report(report_id),
+ roccat_common2_feature_report(report_id),
0, buf, size, USB_CTRL_SET_TIMEOUT);
memcpy(data, buf, size);
kfree(buf);
return ((len < 0) ? len : ((len != size) ? -EIO : 0));
}
-EXPORT_SYMBOL_GPL(roccat_common_receive);
+EXPORT_SYMBOL_GPL(roccat_common2_receive);
-int roccat_common_send(struct usb_device *usb_dev, uint report_id,
+int roccat_common2_send(struct usb_device *usb_dev, uint report_id,
void const *data, uint size)
{
char *buf;
@@ -56,13 +56,71 @@ int roccat_common_send(struct usb_device *usb_dev, uint report_id,
len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
HID_REQ_SET_REPORT,
USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
- roccat_common_feature_report(report_id),
+ roccat_common2_feature_report(report_id),
0, buf, size, USB_CTRL_SET_TIMEOUT);
kfree(buf);
return ((len < 0) ? len : ((len != size) ? -EIO : 0));
}
-EXPORT_SYMBOL_GPL(roccat_common_send);
+EXPORT_SYMBOL_GPL(roccat_common2_send);
+
+enum roccat_common2_control_states {
+ ROCCAT_COMMON_CONTROL_STATUS_OVERLOAD = 0,
+ ROCCAT_COMMON_CONTROL_STATUS_OK = 1,
+ ROCCAT_COMMON_CONTROL_STATUS_INVALID = 2,
+ ROCCAT_COMMON_CONTROL_STATUS_WAIT = 3,
+};
+
+static int roccat_common2_receive_control_status(struct usb_device *usb_dev)
+{
+ int retval;
+ struct roccat_common2_control control;
+
+ do {
+ msleep(50);
+ retval = roccat_common2_receive(usb_dev,
+ ROCCAT_COMMON_COMMAND_CONTROL,
+ &control, sizeof(struct roccat_common2_control));
+
+ if (retval)
+ return retval;
+
+ switch (control.value) {
+ case ROCCAT_COMMON_CONTROL_STATUS_OK:
+ return 0;
+ case ROCCAT_COMMON_CONTROL_STATUS_WAIT:
+ msleep(500);
+ continue;
+ case ROCCAT_COMMON_CONTROL_STATUS_INVALID:
+
+ case ROCCAT_COMMON_CONTROL_STATUS_OVERLOAD:
+ /* seems to be critical - replug necessary */
+ return -EINVAL;
+ default:
+ dev_err(&usb_dev->dev,
+ "roccat_common2_receive_control_status: "
+ "unknown response value 0x%x\n",
+ control.value);
+ return -EINVAL;
+ }
+
+ } while (1);
+}
+
+int roccat_common2_send_with_status(struct usb_device *usb_dev,
+ uint command, void const *buf, uint size)
+{
+ int retval;
+
+ retval = roccat_common2_send(usb_dev, command, buf, size);
+ if (retval)
+ return retval;
+
+ msleep(100);
+
+ return roccat_common2_receive_control_status(usb_dev);
+}
+EXPORT_SYMBOL_GPL(roccat_common2_send_with_status);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat common driver");