1 // SPDX-License-Identifier: GPL-2.0+
5  *   (c) 2006 Bob Copeland <me@bobcopeland.com>
6  *   (c) 2006 Keith Bennett <keith@mcs.st-and.ac.uk>
21 #define DRV_NAME "ums-karma"
24 MODULE_AUTHOR("Bob Copeland <me@bobcopeland.com>, Keith Bennett <keith@mcs.st-and.ac.uk>");
89  * with a 512-byte packet with the high four bits set and everything
98 	static unsigned char seq = 1;  in rio_karma_send_command()  local
99 	struct karma_data *data = (struct karma_data *) us->extra;  in rio_karma_send_command()
102 	memset(us->iobuf, 0, RIO_SEND_LEN);  in rio_karma_send_command()
103 	memcpy(us->iobuf, RIO_PREFIX, RIO_PREFIX_LEN);  in rio_karma_send_command()
104 	us->iobuf[5] = cmd;  in rio_karma_send_command()
105 	us->iobuf[6] = seq;  in rio_karma_send_command()
109 		result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,  in rio_karma_send_command()
110 			us->iobuf, RIO_SEND_LEN, NULL);  in rio_karma_send_command()
114 		result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,  in rio_karma_send_command()
115 			data->recv, RIO_RECV_LEN, NULL);  in rio_karma_send_command()
119 		if (data->recv[5] == seq)  in rio_karma_send_command()
125 		us->iobuf[4] = 0x80;  in rio_karma_send_command()
126 		us->iobuf[5] = 0;  in rio_karma_send_command()
130 	seq++;  in rio_karma_send_command()
131 	if (seq == 0)  in rio_karma_send_command()
132 		seq = 1;  in rio_karma_send_command()
142  * Trap START_STOP and READ_10 to leave/re-enter storage mode.
148 	struct karma_data *data = (struct karma_data *) us->extra;  in rio_karma_transport()
150 	if (srb->cmnd[0] == READ_10 && !data->in_storage) {  in rio_karma_transport()
155 		data->in_storage = 1;  in rio_karma_transport()
157 	} else if (srb->cmnd[0] == START_STOP) {  in rio_karma_transport()
162 		data->in_storage = 0;  in rio_karma_transport()
172 	kfree(data->recv);  in rio_karma_destructor()
180 		return -ENOMEM;  in rio_karma_init()
182 	data->recv = kmalloc(RIO_RECV_LEN, GFP_NOIO);  in rio_karma_init()
183 	if (!data->recv) {  in rio_karma_init()
185 		return -ENOMEM;  in rio_karma_init()
188 	us->extra = data;  in rio_karma_init()
189 	us->extra_destructor = rio_karma_destructor;  in rio_karma_init()
191 		return -EIO;  in rio_karma_init()
193 	data->in_storage = 1;  in rio_karma_init()
207 			(id - karma_usb_ids) + karma_unusual_dev_list,  in karma_probe()
212 	us->transport_name = "Rio Karma/Bulk";  in karma_probe()
213 	us->transport = rio_karma_transport;  in karma_probe()
214 	us->transport_reset = usb_stor_Bulk_reset;  in karma_probe()