- usb_transfer_descriptor *td;
- u8 runloop = 1;
- u16 restlength = irp->len;
- char *td_buf_ptr = irp->buffer;
-
- //u8 togl=irp->dev->epTogl[(irp->endpoint & 0x7F)];
- u8 togl = irp->dev->epTogl[(irp->endpoint & 0x7F)];
- //u8 togl=0;
-
- switch (irp->type) {
- case USB_CTRL:
-
- /* alle requests mit dem gleichen algorithmus zerteilen
- * das einzige ist der spezielle get_Device_descriptor request
- * bei dem eine laenge von 64 angegeben ist.
- * wenn man an adresse 0 einen get_device_desciptor schickt
- * dann reichen die ersten 8 byte.
- */
-
- /***************** Setup Stage ***********************/
- td = usb_create_transfer_descriptor(irp);
- td->pid = USB_PID_SETUP;
- td->buffer = irp->buffer;
- td->actlen = 8; /* control message are always 8 bytes */
-
- togl = 0;
- td->togl = togl; /* start with data0 */
- if (togl == 0)
- togl = 1;
- else
- togl = 0;
- /**** send token ****/
- hcdi_enqueue(td);
-
- /***************** Data Stage ***********************/
- /**
- * You can see at bit 7 of bmRequestType if this stage is used,
- * default requests are always 8 byte greate, from
- * host to device. Stage 3 is only neccessary if the request
- * expected datas from the device.
- * bit7 - 1 = from device to host -> yes we need data stage
- * bit7 - 0 = from host to device -> no send zero packet
- *
- * nach einem setup token kann nur ein IN token in stage 3 folgen
- * nie aber ein OUT. Ein Zero OUT wird nur als Bestaetigung benoetigt.
- *
- *
- * bit7 = 1
- * Device to Host
- * - es kommen noch Daten mit PID_IN an
- * - host beendet mit PID_OUT DATA1 Zero
- * bit7 - 0
- * Host zu Device (wie set address)
- * - device sendet ein PID_IN DATA1 Zero Packet als bestaetigung
- */
- usb_device_request *setup = (usb_device_request *) irp->buffer;
- u8 bmRequestType = setup->bmRequestType;
-
- if (bmRequestType & 0x80) { /* check bit 7 of bmRequestType */
-
- /* schleife die die tds generiert */
- while (runloop) {
- td = usb_create_transfer_descriptor(irp);
- td->actlen = irp->epsize;
- /* stop loop if all bytes are send */
- if (restlength <= irp->epsize) {
- runloop = 0;
- td->actlen = restlength;
- }
-
- td->buffer = td_buf_ptr;
- /* move pointer for next packet */
- td_buf_ptr = td_buf_ptr + irp->epsize;
-
- td->pid = USB_PID_IN;
- td->togl = togl;
- if (togl == 0)
- togl = 1;
- else
- togl = 0;
-
- /* wenn device descriptor von adresse 0 angefragt wird werden nur
- * die ersten 8 byte abgefragt
- */
- if (setup->bRequest == GET_DESCRIPTOR && (setup->wValue >> 8) == 1
- && td->devaddress == 0) {
- runloop = 0; /* stop loop */
- }
-
- /**** send token ****/
- hcdi_enqueue(td);
-
- /* pruefe ob noch weitere Pakete vom Device abgeholt werden muessen */
- restlength = restlength - irp->epsize;
- }
- }
-
-
- /***************** Status Stage ***********************/
- /* Zero packet for end */
- td = usb_create_transfer_descriptor(irp);
- td->togl = 1; /* zero data packet = always DATA1 packet */
- td->actlen = 0;
- td->buffer = NULL;
-
- /**
- * bit7 = 1, host beendet mit PID_OUT DATA1 Zero
- * bit7 = 0, device sendet ein PID_IN DATA1 Zero Packet als bestaetigung
- */
- if (bmRequestType & 0x80) { /* check bit 7 of bmRequestType */
- td->pid = USB_PID_OUT;
- } else {
- td->pid = USB_PID_IN;
- }
- /**** send token ****/
- hcdi_enqueue(td);
- free(td);
-
-
- break;
- case USB_BULK:
-
- core.stdout("bulk\r\n");
- //u8 runloop=1;
- //u16 restlength = irp->len;
- //char * td_buf_ptr=irp->buffer;
-
- /* schleife die die tds generiert */
- while (runloop) {
-
- td = usb_create_transfer_descriptor(irp);
- td->endpoint = td->endpoint & 0x7F; /* clear direction bit */
-
- /* max packet size for given endpoint */
- td->actlen = irp->epsize;
-
- /* Generate In Packet */
- if (irp->endpoint & 0x80)
- td->pid = USB_PID_IN;
- else
- /* Generate Out Packet */
- td->pid = USB_PID_OUT;
-
- /* stop loop if all bytes are send */
- if (restlength <= irp->epsize) {
- runloop = 0;
- td->actlen = restlength;
- }
-
- td->buffer = td_buf_ptr;
- /* move pointer for next packet */
- td_buf_ptr = td_buf_ptr + irp->epsize;
-
- td->togl = togl;
- if (togl == 0)
- togl = 1;
- else
- togl = 0;
- /**** send token ****/
- hcdi_enqueue(td);
- free(td);
- }
- /* next togl */
- //if(td->pid == USB_PID_OUT) {
- //if(togl==0) togl=1; else togl=0;
- //}
- irp->dev->epTogl[(irp->endpoint & 0x7F)] = togl;
-
- break;
- }
-
- return 1;
+ usb_transfer_descriptor *td;
+ u8 runloop = 1;
+ u16 restlength = irp->len;
+ char *td_buf_ptr = irp->buffer;
+
+ //u8 togl=irp->dev->epTogl[(irp->endpoint & 0x7F)];
+ u8 togl = irp->dev->epTogl[(irp->endpoint & 0x7F)];
+ //u8 togl=0;
+
+ switch (irp->type) {
+ case USB_CTRL:
+
+ /* alle requests mit dem gleichen algorithmus zerteilen
+ * das einzige ist der spezielle get_Device_descriptor request
+ * bei dem eine laenge von 64 angegeben ist.
+ * wenn man an adresse 0 einen get_device_desciptor schickt
+ * dann reichen die ersten 8 byte.
+ */
+
+ /***************** Setup Stage ***********************/
+ td = usb_create_transfer_descriptor(irp);
+ td->pid = USB_PID_SETUP;
+ td->buffer = irp->buffer;
+ td->actlen = 8; /* control message are always 8 bytes */
+
+ togl = 0;
+ td->togl = togl; /* start with data0 */
+ if (togl == 0)
+ togl = 1;
+ else
+ togl = 0;
+ /**** send token ****/
+ hcdi_enqueue(td);
+
+ /***************** Data Stage ***********************/
+ /**
+ * You can see at bit 7 of bmRequestType if this stage is used,
+ * default requests are always 8 byte greate, from
+ * host to device. Stage 3 is only neccessary if the request
+ * expected datas from the device.
+ * bit7 - 1 = from device to host -> yes we need data stage
+ * bit7 - 0 = from host to device -> no send zero packet
+ *
+ * nach einem setup token kann nur ein IN token in stage 3 folgen
+ * nie aber ein OUT. Ein Zero OUT wird nur als Bestaetigung benoetigt.
+ *
+ *
+ * bit7 = 1
+ * Device to Host
+ * - es kommen noch Daten mit PID_IN an
+ * - host beendet mit PID_OUT DATA1 Zero
+ * bit7 - 0
+ * Host zu Device (wie set address)
+ * - device sendet ein PID_IN DATA1 Zero Packet als bestaetigung
+ */
+ usb_device_request *setup = (usb_device_request *) irp->buffer;
+ u8 bmRequestType = setup->bmRequestType;
+
+ if (bmRequestType & 0x80) { /* check bit 7 of bmRequestType */
+
+ /* schleife die die tds generiert */
+ while (runloop) {
+ td = usb_create_transfer_descriptor(irp);
+ td->actlen = irp->epsize;
+ /* stop loop if all bytes are send */
+ if (restlength <= irp->epsize) {
+ runloop = 0;
+ td->actlen = restlength;
+ }
+
+ td->buffer = td_buf_ptr;
+ /* move pointer for next packet */
+ td_buf_ptr = td_buf_ptr + irp->epsize;
+
+ td->pid = USB_PID_IN;
+ td->togl = togl;
+ if (togl == 0)
+ togl = 1;
+ else
+ togl = 0;
+
+ /* wenn device descriptor von adresse 0 angefragt wird werden nur
+ * die ersten 8 byte abgefragt
+ */
+ if (setup->bRequest == GET_DESCRIPTOR && (setup->wValue >> 8) == 1
+ && td->devaddress == 0) {
+ runloop = 0; /* stop loop */
+ }
+
+ /**** send token ****/
+ hcdi_enqueue(td);
+
+ /* pruefe ob noch weitere Pakete vom Device abgeholt werden muessen */
+ restlength = restlength - irp->epsize;
+ }
+ }
+
+
+ /***************** Status Stage ***********************/
+ /* Zero packet for end */
+ td = usb_create_transfer_descriptor(irp);
+ td->togl = 1; /* zero data packet = always DATA1 packet */
+ td->actlen = 0;
+ td->buffer = NULL;
+
+ /**
+ * bit7 = 1, host beendet mit PID_OUT DATA1 Zero
+ * bit7 = 0, device sendet ein PID_IN DATA1 Zero Packet als bestaetigung
+ */
+ if (bmRequestType & 0x80) { /* check bit 7 of bmRequestType */
+ td->pid = USB_PID_OUT;
+ } else {
+ td->pid = USB_PID_IN;
+ }
+ /**** send token ****/
+ hcdi_enqueue(td);
+ free(td);
+
+
+ break;
+ case USB_BULK:
+
+ core.stdout("bulk\r\n");
+ //u8 runloop=1;
+ //u16 restlength = irp->len;
+ //char * td_buf_ptr=irp->buffer;
+
+ /* schleife die die tds generiert */
+ while (runloop) {
+
+ td = usb_create_transfer_descriptor(irp);
+ td->endpoint = td->endpoint & 0x7F; /* clear direction bit */
+
+ /* max packet size for given endpoint */
+ td->actlen = irp->epsize;
+
+ /* Generate In Packet */
+ if (irp->endpoint & 0x80)
+ td->pid = USB_PID_IN;
+ else
+ /* Generate Out Packet */
+ td->pid = USB_PID_OUT;
+
+ /* stop loop if all bytes are send */
+ if (restlength <= irp->epsize) {
+ runloop = 0;
+ td->actlen = restlength;
+ }
+
+ td->buffer = td_buf_ptr;
+ /* move pointer for next packet */
+ td_buf_ptr = td_buf_ptr + irp->epsize;
+
+ td->togl = togl;
+ if (togl == 0)
+ togl = 1;
+ else
+ togl = 0;
+ /**** send token ****/
+ hcdi_enqueue(td);
+ free(td);
+ }
+ /* next togl */
+ //if(td->pid == USB_PID_OUT) {
+ //if(togl==0) togl=1; else togl=0;
+ //}
+ irp->dev->epTogl[(irp->endpoint & 0x7F)] = togl;
+
+ break;
+ }
+
+ return 1;