1 // SPDX-License-Identifier: GPL-2.0
121 /*-------------------------------------------------------------------------*/
123 	__raw_readl(aspeed_udc->udc_base + (offset))
125 	__raw_writel((u32)val, aspeed_udc->udc_base + (offset))
131 /*-------------------------------------------------------------------------*/
148 		ep_reg = aspeed_udc->udc_base + AST_EP_BASE +  in udc_stall_ep()
149 			 (AST_EP_OFFSET * (ep_num - 1));  in udc_stall_ep()
162 	struct urb *urb = endpoint->tx_urb;  in udc_endpoint_write()
171 		return -1;  in udc_endpoint_write()
174 	ep_num = endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;  in udc_endpoint_write()
175 	ep_reg = aspeed_udc->udc_base + AST_EP_BASE + (AST_EP_OFFSET * (ep_num - 1));  in udc_endpoint_write()
176 	remaining_packet = urb->actual_length - endpoint->sent;  in udc_endpoint_write()
178 	if (endpoint->tx_packetSize < remaining_packet)  in udc_endpoint_write()
179 		length = endpoint->tx_packetSize;  in udc_endpoint_write()
184 //		ep_num, length, endpoint->sent, urb->actual_length);  in udc_endpoint_write()
186 	data = (u8 *)urb->buffer;  in udc_endpoint_write()
187 	data += endpoint->sent;  in udc_endpoint_write()
189 	// tx trigger  in udc_endpoint_write()
195 	endpoint->last = length;  in udc_endpoint_write()
197 	// wait for tx complete  in udc_endpoint_write()
199 		if (timeout-- == 0)  in udc_endpoint_write()
200 			return -1;  in udc_endpoint_write()
214 	ep_isout = (endpoint->endpoint_address & USB_ENDPOINT_DIR_MASK) ==  in aspeed_udc_ep_handle()
216 	ep_num = endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;  in aspeed_udc_ep_handle()
218 	ep_reg = aspeed_udc->udc_base + AST_EP_BASE + (AST_EP_OFFSET * (ep_num - 1));  in aspeed_udc_ep_handle()
242 	urb = endpoint->rcv_urb;  in aspeed_udc_ep0_rx()
248 	buff = urb->buffer;  in aspeed_udc_ep0_rx()
260 	if ((ep0_urb->device_request.bmRequestType & USB_REQ_DIRECTION_MASK) ==  in aspeed_udc_ep0_out()
266 		usbdbg("EP0 OUT packet ACK, sent zero-length packet");  in aspeed_udc_ep0_out()
281 	urb = endpoint->tx_urb;  in aspeed_udc_ep0_tx()
287 	usbdbg("urb->buffer: %p, buffer_length: %d, actual_length: %d, sent:%d",  in aspeed_udc_ep0_tx()
288 	       urb->buffer, urb->buffer_length,  in aspeed_udc_ep0_tx()
289 	       urb->actual_length, endpoint->sent);  in aspeed_udc_ep0_tx()
291 	last = min((int)(urb->actual_length - endpoint->sent),  in aspeed_udc_ep0_tx()
292 		   (int)endpoint->tx_packetSize);  in aspeed_udc_ep0_tx()
295 		u8 *cp = urb->buffer + endpoint->sent;  in aspeed_udc_ep0_tx()
300 		 * This ensures that USBD packet fifo is accessed  in aspeed_udc_ep0_tx()
301 		 * - through word aligned pointer or  in aspeed_udc_ep0_tx()
302 		 * - through non word aligned pointer but only  in aspeed_udc_ep0_tx()
303 		 *   with a max length to make the next packet  in aspeed_udc_ep0_tx()
308 		       endpoint->sent, endpoint->tx_packetSize, last);  in aspeed_udc_ep0_tx()
312 		// trigger tx  in aspeed_udc_ep0_tx()
317 	endpoint->last = last;  in aspeed_udc_ep0_tx()
322 	struct usb_device_request *request = &ep0_urb->device_request;  in aspeed_udc_ep0_in()
327 	if ((request->bmRequestType & USB_REQ_DIRECTION_MASK) ==  in aspeed_udc_ep0_in()
330 		 * This tx interrupt must be for a control write status  in aspeed_udc_ep0_in()
336 		 * This tx interrupt must be for a control read data  in aspeed_udc_ep0_in()
339 		int wLength = le16_to_cpu(request->wLength);  in aspeed_udc_ep0_in()
345 		endpoint->sent += endpoint->last;  in aspeed_udc_ep0_in()
349 		 * all of the bytes in our tx urb (urb->actual_length)  in aspeed_udc_ep0_in()
350 		 * unless we need a zero-length terminating packet.  We  in aspeed_udc_ep0_in()
351 		 * need a zero-length terminating packet if we returned  in aspeed_udc_ep0_in()
354 		 * multiple of the packet size endpoint->tx_packetSize.  in aspeed_udc_ep0_in()
356 		if (endpoint->sent == ep0_urb->actual_length &&  in aspeed_udc_ep0_in()
357 		    (ep0_urb->actual_length == wLength ||  in aspeed_udc_ep0_in()
358 		     endpoint->last != endpoint->tx_packetSize)) {  in aspeed_udc_ep0_in()
362 			endpoint->rcv_urb = ep0_urb;  in aspeed_udc_ep0_in()
363 			endpoint->sent = 0;  in aspeed_udc_ep0_in()
370 			 * need a zero-length terminating packet.  in aspeed_udc_ep0_in()
381 	u32 *setup = (u32 *)(aspeed_udc->udc_base + AST_VHUB_SETUP_DATA0);  in aspeed_udc_setup_handle()
382 	u8 *datap = (u8 *)&ep0_urb->device_request;  in aspeed_udc_setup_handle()
384 	usbdbg("-> Entering device setup");  in aspeed_udc_setup_handle()
398 	if ((ep0_urb->device_request.bmRequestType & USB_REQ_DIRECTION_MASK) ==  in aspeed_udc_setup_handle()
400 		switch (ep0_urb->device_request.bRequest) {  in aspeed_udc_setup_handle()
402 			usbdbg("set addr: %x", ep0_urb->device_request.wValue);  in aspeed_udc_setup_handle()
403 			ast_udc_write(ep0_urb->device_request.wValue,  in aspeed_udc_setup_handle()
418 			if (ep0_urb->device_request.wLength) {  in aspeed_udc_setup_handle()
419 				endpoint->rcv_urb = ep0_urb;  in aspeed_udc_setup_handle()
420 				endpoint->sent = 0;  in aspeed_udc_setup_handle()
424 				// send zero-length IN packet  in aspeed_udc_setup_handle()
435 		 * packet data in ep0_urb->buffer and the packet length in  in aspeed_udc_setup_handle()
436 		 * ep0_urb->actual_length.  in aspeed_udc_setup_handle()
438 		endpoint->tx_urb = ep0_urb;  in aspeed_udc_setup_handle()
439 		endpoint->sent = 0;  in aspeed_udc_setup_handle()
443 	usbdbg("<- Leaving device setup");  in aspeed_udc_setup_handle()
476 		aspeed_udc_ep0_in(udc_device->bus->endpoint_array);  in udc_irq()
482 		aspeed_udc_ep0_out(udc_device->bus->endpoint_array);  in udc_irq()
498 		aspeed_udc_setup_handle(udc_device->bus->endpoint_array);  in udc_irq()
535 				aspeed_udc_ep_handle(udc_device->bus->endpoint_array + i + 1);  in udc_irq()
582 	ep_num = endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;  in udc_setup_ep()
584 		usberr("Error: ep num is out-of-range %d", ep_num);  in udc_setup_ep()
593 	ep_addr = endpoint->endpoint_address;  in udc_setup_ep()
595 	ep_type = ep_isout ? endpoint->rcv_attributes : endpoint->tx_attributes;  in udc_setup_ep()
596 	ep_size = ep_isout ? endpoint->rcv_packetSize : endpoint->tx_packetSize;  in udc_setup_ep()
598 	usbdbg("addr %x, num %d, dir %s, type %s, packet size %d",  in udc_setup_ep()
635 	ep_reg = aspeed_udc->udc_base + AST_EP_BASE + (AST_EP_OFFSET * (ep_num - 1));  in udc_setup_ep()
643 		ast_ep_write(ep_reg, endpoint->rcv_urb->buffer, AST_EP_DMA_BUFF);  in udc_setup_ep()
647 		ast_ep_write(ep_reg, endpoint->tx_urb->buffer, AST_EP_DMA_BUFF);  in udc_setup_ep()
674 					 udc_device->bus->endpoint_array);  in udc_enable()
715 		return -1;  in udc_init()
760 	aspeed_udc->udc_base = (u32)devfdt_get_addr_index(dev, 0);  in aspeed_udc_ofdata_to_platdata()
766 	{ .compatible = "aspeed,ast2600-usb-vhub" },