1 // SPDX-License-Identifier: GPL-2.0-or-later
14 #include "midi.h"
25 	urb->transfer_buffer = buffer;  in usb6fire_comm_init_urb()
26 	urb->pipe = usb_sndintpipe(rt->chip->dev, COMM_EP);  in usb6fire_comm_init_urb()
27 	urb->complete = handler;  in usb6fire_comm_init_urb()
28 	urb->context = context;  in usb6fire_comm_init_urb()
29 	urb->interval = 1;  in usb6fire_comm_init_urb()
30 	urb->dev = rt->chip->dev;  in usb6fire_comm_init_urb()
35 	struct comm_runtime *rt = urb->context;  in usb6fire_comm_receiver_handler()
36 	struct midi_runtime *midi_rt = rt->chip->midi;  in usb6fire_comm_receiver_handler()
38 	if (!urb->status) {  in usb6fire_comm_receiver_handler()
39 		if (rt->receiver_buffer[0] == 0x10) /* midi in event */  in usb6fire_comm_receiver_handler()
41 				midi_rt->in_received(midi_rt,  in usb6fire_comm_receiver_handler()
42 						rt->receiver_buffer + 2,  in usb6fire_comm_receiver_handler()
43 						rt->receiver_buffer[1]);  in usb6fire_comm_receiver_handler()
46 	if (!rt->chip->shutdown) {  in usb6fire_comm_receiver_handler()
47 		urb->status = 0;  in usb6fire_comm_receiver_handler()
48 		urb->actual_length = 0;  in usb6fire_comm_receiver_handler()
50 			dev_warn(&urb->dev->dev,  in usb6fire_comm_receiver_handler()
102 		return -EIO;  in usb6fire_comm_send_buffer()
115 		return -ENOMEM;  in usb6fire_comm_write8()
118 	ret = usb6fire_comm_send_buffer(buffer, rt->chip->dev);  in usb6fire_comm_write8()
133 		return -ENOMEM;  in usb6fire_comm_write16()
136 	ret = usb6fire_comm_send_buffer(buffer, rt->chip->dev);  in usb6fire_comm_write16()
150 		return -ENOMEM;  in usb6fire_comm_init()
152 	rt->receiver_buffer = kzalloc(COMM_RECEIVER_BUFSIZE, GFP_KERNEL);  in usb6fire_comm_init()
153 	if (!rt->receiver_buffer) {  in usb6fire_comm_init()
155 		return -ENOMEM;  in usb6fire_comm_init()
158 	urb = &rt->receiver;  in usb6fire_comm_init()
159 	rt->serial = 1;  in usb6fire_comm_init()
160 	rt->chip = chip;  in usb6fire_comm_init()
162 	rt->init_urb = usb6fire_comm_init_urb;  in usb6fire_comm_init()
163 	rt->write8 = usb6fire_comm_write8;  in usb6fire_comm_init()
164 	rt->write16 = usb6fire_comm_write16;  in usb6fire_comm_init()
167 	urb->transfer_buffer = rt->receiver_buffer;  in usb6fire_comm_init()
168 	urb->transfer_buffer_length = COMM_RECEIVER_BUFSIZE;  in usb6fire_comm_init()
169 	urb->pipe = usb_rcvintpipe(chip->dev, COMM_EP);  in usb6fire_comm_init()
170 	urb->dev = chip->dev;  in usb6fire_comm_init()
171 	urb->complete = usb6fire_comm_receiver_handler;  in usb6fire_comm_init()
172 	urb->context = rt;  in usb6fire_comm_init()
173 	urb->interval = 1;  in usb6fire_comm_init()
176 		kfree(rt->receiver_buffer);  in usb6fire_comm_init()
178 		dev_err(&chip->dev->dev, "cannot create comm data receiver.");  in usb6fire_comm_init()
181 	chip->comm = rt;  in usb6fire_comm_init()
187 	struct comm_runtime *rt = chip->comm;  in usb6fire_comm_abort()
190 		usb_poison_urb(&rt->receiver);  in usb6fire_comm_abort()
195 	struct comm_runtime *rt = chip->comm;  in usb6fire_comm_destroy()
197 	kfree(rt->receiver_buffer);  in usb6fire_comm_destroy()
199 	chip->comm = NULL;  in usb6fire_comm_destroy()