blob: 7eb34cd6b5791afd3e68ba9e508ea378857cd952 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * USB ConnectTech WhiteHEAT driver
3 *
4 * Copyright (C) 2002
5 * Connect Tech Inc.
6 *
7 * Copyright (C) 1999 - 2001
8 * Greg Kroah-Hartman (greg@kroah.com)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
Alan Cox80359a92008-07-22 11:09:16 +010015 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
18
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#include <linux/kernel.h>
20#include <linux/errno.h>
21#include <linux/init.h>
22#include <linux/slab.h>
23#include <linux/tty.h>
24#include <linux/tty_driver.h>
25#include <linux/tty_flip.h>
26#include <linux/module.h>
27#include <linux/spinlock.h>
Oliver Neukum08a2b3b2007-05-24 13:52:51 +020028#include <linux/mutex.h>
Alan Cox80359a92008-07-22 11:09:16 +010029#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include <asm/termbits.h>
31#include <linux/usb.h>
32#include <linux/serial_reg.h>
33#include <linux/serial.h>
Greg Kroah-Hartmana9698882006-07-11 21:22:58 -070034#include <linux/usb/serial.h>
Rene Buergelcc183e22012-09-18 09:00:41 +020035#include <linux/usb/ezusb.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036#include "whiteheat.h" /* WhiteHEAT specific commands */
37
Linus Torvalds1da177e2005-04-16 15:20:36 -070038#ifndef CMSPAR
39#define CMSPAR 0
40#endif
41
42/*
43 * Version Information
44 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Stuart MacDonald <stuartm@connecttech.com>"
46#define DRIVER_DESC "USB ConnectTech WhiteHEAT driver"
47
48#define CONNECT_TECH_VENDOR_ID 0x0710
49#define CONNECT_TECH_FAKE_WHITE_HEAT_ID 0x0001
50#define CONNECT_TECH_WHITE_HEAT_ID 0x8001
51
52/*
53 ID tables for whiteheat are unusual, because we want to different
54 things for different versions of the device. Eventually, this
55 will be doable from a single table. But, for now, we define two
56 separate ID tables, and then a third table that combines them
57 just for the purpose of exporting the autoloading information.
58*/
Németh Márton7d40d7e2010-01-10 15:34:24 +010059static const struct usb_device_id id_table_std[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070060 { USB_DEVICE(CONNECT_TECH_VENDOR_ID, CONNECT_TECH_WHITE_HEAT_ID) },
61 { } /* Terminating entry */
62};
63
Németh Márton7d40d7e2010-01-10 15:34:24 +010064static const struct usb_device_id id_table_prerenumeration[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 { USB_DEVICE(CONNECT_TECH_VENDOR_ID, CONNECT_TECH_FAKE_WHITE_HEAT_ID) },
66 { } /* Terminating entry */
67};
68
Németh Márton7d40d7e2010-01-10 15:34:24 +010069static const struct usb_device_id id_table_combined[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 { USB_DEVICE(CONNECT_TECH_VENDOR_ID, CONNECT_TECH_WHITE_HEAT_ID) },
71 { USB_DEVICE(CONNECT_TECH_VENDOR_ID, CONNECT_TECH_FAKE_WHITE_HEAT_ID) },
72 { } /* Terminating entry */
73};
74
Alan Cox80359a92008-07-22 11:09:16 +010075MODULE_DEVICE_TABLE(usb, id_table_combined);
Linus Torvalds1da177e2005-04-16 15:20:36 -070076
Linus Torvalds1da177e2005-04-16 15:20:36 -070077
78/* function prototypes for the Connect Tech WhiteHEAT prerenumeration device */
Alan Cox80359a92008-07-22 11:09:16 +010079static int whiteheat_firmware_download(struct usb_serial *serial,
80 const struct usb_device_id *id);
81static int whiteheat_firmware_attach(struct usb_serial *serial);
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
83/* function prototypes for the Connect Tech WhiteHEAT serial converter */
Alan Cox80359a92008-07-22 11:09:16 +010084static int whiteheat_attach(struct usb_serial *serial);
Alan Sternf9c99bb2009-06-02 11:53:55 -040085static void whiteheat_release(struct usb_serial *serial);
Johan Hovoldc4672062012-10-25 10:29:02 +020086static int whiteheat_port_probe(struct usb_serial_port *port);
87static int whiteheat_port_remove(struct usb_serial_port *port);
Alan Cox80359a92008-07-22 11:09:16 +010088static int whiteheat_open(struct tty_struct *tty,
Alan Coxa509a7e2009-09-19 13:13:26 -070089 struct usb_serial_port *port);
Alan Cox335f8512009-06-11 12:26:29 +010090static void whiteheat_close(struct usb_serial_port *port);
Alan Cox00a0d0d2011-02-14 16:27:06 +000091static int whiteheat_ioctl(struct tty_struct *tty,
Alan Cox80359a92008-07-22 11:09:16 +010092 unsigned int cmd, unsigned long arg);
93static void whiteheat_set_termios(struct tty_struct *tty,
94 struct usb_serial_port *port, struct ktermios *old);
Alan Cox60b33c12011-02-14 16:26:14 +000095static int whiteheat_tiocmget(struct tty_struct *tty);
Alan Cox20b9d172011-02-14 16:26:50 +000096static int whiteheat_tiocmset(struct tty_struct *tty,
Alan Cox80359a92008-07-22 11:09:16 +010097 unsigned int set, unsigned int clear);
98static void whiteheat_break_ctl(struct tty_struct *tty, int break_state);
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
Greg Kroah-Hartmanea653702005-06-20 21:15:16 -0700100static struct usb_serial_driver whiteheat_fake_device = {
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700101 .driver = {
102 .owner = THIS_MODULE,
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700103 .name = "whiteheatnofirm",
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700104 },
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700105 .description = "Connect Tech - WhiteHEAT - (prerenumeration)",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 .id_table = id_table_prerenumeration,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 .num_ports = 1,
108 .probe = whiteheat_firmware_download,
109 .attach = whiteheat_firmware_attach,
110};
111
Greg Kroah-Hartmanea653702005-06-20 21:15:16 -0700112static struct usb_serial_driver whiteheat_device = {
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700113 .driver = {
114 .owner = THIS_MODULE,
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700115 .name = "whiteheat",
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700116 },
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700117 .description = "Connect Tech - WhiteHEAT",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 .id_table = id_table_std,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119 .num_ports = 4,
120 .attach = whiteheat_attach,
Alan Sternf9c99bb2009-06-02 11:53:55 -0400121 .release = whiteheat_release,
Johan Hovoldc4672062012-10-25 10:29:02 +0200122 .port_probe = whiteheat_port_probe,
123 .port_remove = whiteheat_port_remove,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 .open = whiteheat_open,
125 .close = whiteheat_close,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126 .ioctl = whiteheat_ioctl,
127 .set_termios = whiteheat_set_termios,
128 .break_ctl = whiteheat_break_ctl,
129 .tiocmget = whiteheat_tiocmget,
130 .tiocmset = whiteheat_tiocmset,
Johan Hovold5c0c7582012-03-22 16:50:55 +0100131 .throttle = usb_serial_generic_throttle,
132 .unthrottle = usb_serial_generic_unthrottle,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133};
134
Alan Stern29618e92012-02-23 14:57:32 -0500135static struct usb_serial_driver * const serial_drivers[] = {
136 &whiteheat_fake_device, &whiteheat_device, NULL
137};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138
139struct whiteheat_command_private {
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200140 struct mutex mutex;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 __u8 port_running;
142 __u8 command_finished;
Alan Cox80359a92008-07-22 11:09:16 +0100143 wait_queue_head_t wait_command; /* for handling sleeping whilst
144 waiting for a command to
145 finish */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 __u8 result_buffer[64];
147};
148
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149struct whiteheat_private {
Alan Coxa5b6f602008-04-08 17:16:06 +0100150 __u8 mcr; /* FIXME: no locking on mcr */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151};
152
153
154/* local function prototypes */
155static int start_command_port(struct usb_serial *serial);
156static void stop_command_port(struct usb_serial *serial);
David Howells7d12e782006-10-05 14:55:46 +0100157static void command_port_write_callback(struct urb *urb);
158static void command_port_read_callback(struct urb *urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
Alan Cox80359a92008-07-22 11:09:16 +0100160static int firm_send_command(struct usb_serial_port *port, __u8 command,
161 __u8 *data, __u8 datasize);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162static int firm_open(struct usb_serial_port *port);
163static int firm_close(struct usb_serial_port *port);
Alan Coxfe1ae7f2009-09-19 13:13:33 -0700164static void firm_setup_port(struct tty_struct *tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165static int firm_set_rts(struct usb_serial_port *port, __u8 onoff);
166static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff);
167static int firm_set_break(struct usb_serial_port *port, __u8 onoff);
168static int firm_purge(struct usb_serial_port *port, __u8 rxtx);
169static int firm_get_dtr_rts(struct usb_serial_port *port);
170static int firm_report_tx_done(struct usb_serial_port *port);
171
172
173#define COMMAND_PORT 4
174#define COMMAND_TIMEOUT (2*HZ) /* 2 second timeout for a command */
175#define COMMAND_TIMEOUT_MS 2000
176#define CLOSING_DELAY (30 * HZ)
177
178
179/*****************************************************************************
180 * Connect Tech's White Heat prerenumeration driver functions
181 *****************************************************************************/
182
183/* steps to download the firmware to the WhiteHEAT device:
184 - hold the reset (by writing to the reset bit of the CPUCS register)
185 - download the VEND_AX.HEX file to the chip using VENDOR_REQUEST-ANCHOR_LOAD
186 - release the reset (by writing to the CPUCS register)
187 - download the WH.HEX file for all addresses greater than 0x1b3f using
188 VENDOR_REQUEST-ANCHOR_EXTERNAL_RAM_LOAD
189 - hold the reset
190 - download the WH.HEX file for all addresses less than 0x1b40 using
191 VENDOR_REQUEST_ANCHOR_LOAD
192 - release the reset
193 - device renumerated itself and comes up as new device id with all
194 firmware download completed.
195*/
Alan Cox80359a92008-07-22 11:09:16 +0100196static int whiteheat_firmware_download(struct usb_serial *serial,
197 const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198{
Rene Buergel8d733e22012-09-18 09:02:01 +0200199 int response;
David Woodhouseec6752f2008-05-31 01:35:29 +0300200
Rene Buergel8d733e22012-09-18 09:02:01 +0200201 response = ezusb_fx1_ihex_firmware_download(serial->dev, "whiteheat_loader.fw");
202 if (response >= 0) {
203 response = ezusb_fx1_ihex_firmware_download(serial->dev, "whiteheat.fw");
204 if (response >= 0)
205 return 0;
David Woodhouseec6752f2008-05-31 01:35:29 +0300206 }
Rene Buergel8d733e22012-09-18 09:02:01 +0200207 return -ENOENT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208}
209
210
Alan Cox80359a92008-07-22 11:09:16 +0100211static int whiteheat_firmware_attach(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212{
213 /* We want this device to fail to have a driver assigned to it */
214 return 1;
215}
216
217
218/*****************************************************************************
219 * Connect Tech's White Heat serial driver functions
220 *****************************************************************************/
Alan Cox80359a92008-07-22 11:09:16 +0100221static int whiteheat_attach(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222{
223 struct usb_serial_port *command_port;
224 struct whiteheat_command_private *command_info;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 struct whiteheat_hw_info *hw_info;
226 int pipe;
227 int ret;
228 int alen;
229 __u8 *command;
230 __u8 *result;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231
232 command_port = serial->port[COMMAND_PORT];
233
Alan Cox80359a92008-07-22 11:09:16 +0100234 pipe = usb_sndbulkpipe(serial->dev,
235 command_port->bulk_out_endpointAddress);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 command = kmalloc(2, GFP_KERNEL);
237 if (!command)
238 goto no_command_buffer;
239 command[0] = WHITEHEAT_GET_HW_INFO;
240 command[1] = 0;
Alan Cox80359a92008-07-22 11:09:16 +0100241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 result = kmalloc(sizeof(*hw_info) + 1, GFP_KERNEL);
243 if (!result)
244 goto no_result_buffer;
245 /*
246 * When the module is reloaded the firmware is still there and
247 * the endpoints are still in the usb core unchanged. This is the
Alan Cox80359a92008-07-22 11:09:16 +0100248 * unlinking bug in disguise. Same for the call below.
249 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 usb_clear_halt(serial->dev, pipe);
Alan Cox80359a92008-07-22 11:09:16 +0100251 ret = usb_bulk_msg(serial->dev, pipe, command, 2,
252 &alen, COMMAND_TIMEOUT_MS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 if (ret) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700254 dev_err(&serial->dev->dev, "%s: Couldn't send command [%d]\n",
255 serial->type->description, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 goto no_firmware;
Stuart MacDonald09fd6bc2006-05-31 13:28:40 -0400257 } else if (alen != 2) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700258 dev_err(&serial->dev->dev, "%s: Send command incomplete [%d]\n",
259 serial->type->description, alen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 goto no_firmware;
261 }
262
Alan Cox80359a92008-07-22 11:09:16 +0100263 pipe = usb_rcvbulkpipe(serial->dev,
264 command_port->bulk_in_endpointAddress);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 /* See the comment on the usb_clear_halt() above */
266 usb_clear_halt(serial->dev, pipe);
Alan Cox80359a92008-07-22 11:09:16 +0100267 ret = usb_bulk_msg(serial->dev, pipe, result,
268 sizeof(*hw_info) + 1, &alen, COMMAND_TIMEOUT_MS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 if (ret) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700270 dev_err(&serial->dev->dev, "%s: Couldn't get results [%d]\n",
271 serial->type->description, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272 goto no_firmware;
Stuart MacDonald09fd6bc2006-05-31 13:28:40 -0400273 } else if (alen != sizeof(*hw_info) + 1) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700274 dev_err(&serial->dev->dev, "%s: Get results incomplete [%d]\n",
275 serial->type->description, alen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 goto no_firmware;
277 } else if (result[0] != command[0]) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700278 dev_err(&serial->dev->dev, "%s: Command failed [%d]\n",
279 serial->type->description, result[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 goto no_firmware;
281 }
282
283 hw_info = (struct whiteheat_hw_info *)&result[1];
284
Johan Hovolda6765cb2012-03-22 16:50:54 +0100285 dev_info(&serial->dev->dev, "%s: Firmware v%d.%02d\n",
286 serial->type->description,
Greg Kroah-Hartmanc197a8d2008-08-18 13:21:04 -0700287 hw_info->sw_major_rev, hw_info->sw_minor_rev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
Alan Cox80359a92008-07-22 11:09:16 +0100289 command_info = kmalloc(sizeof(struct whiteheat_command_private),
290 GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 if (command_info == NULL) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700292 dev_err(&serial->dev->dev,
293 "%s: Out of memory for port structures\n",
294 serial->type->description);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 goto no_command_private;
296 }
297
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200298 mutex_init(&command_info->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 command_info->port_running = 0;
300 init_waitqueue_head(&command_info->wait_command);
301 usb_set_serial_port_data(command_port, command_info);
302 command_port->write_urb->complete = command_port_write_callback;
303 command_port->read_urb->complete = command_port_read_callback;
304 kfree(result);
305 kfree(command);
306
307 return 0;
308
309no_firmware:
310 /* Firmware likely not running */
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700311 dev_err(&serial->dev->dev,
312 "%s: Unable to retrieve firmware version, try replugging\n",
313 serial->type->description);
314 dev_err(&serial->dev->dev,
315 "%s: If the firmware is not running (status led not blinking)\n",
316 serial->type->description);
317 dev_err(&serial->dev->dev,
318 "%s: please contact support@connecttech.com\n",
319 serial->type->description);
Jesper Juhl67ca0282006-04-23 19:59:23 +0200320 kfree(result);
Johan Hovoldc1291972012-10-25 10:29:01 +0200321 kfree(command);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 return -ENODEV;
323
324no_command_private:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 kfree(result);
326no_result_buffer:
327 kfree(command);
328no_command_buffer:
329 return -ENOMEM;
330}
331
Alan Sternf9c99bb2009-06-02 11:53:55 -0400332static void whiteheat_release(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333{
334 struct usb_serial_port *command_port;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 /* free up our private data for our command port */
337 command_port = serial->port[COMMAND_PORT];
Alan Cox80359a92008-07-22 11:09:16 +0100338 kfree(usb_get_serial_port_data(command_port));
Johan Hovoldc4672062012-10-25 10:29:02 +0200339}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
Johan Hovoldc4672062012-10-25 10:29:02 +0200341static int whiteheat_port_probe(struct usb_serial_port *port)
342{
343 struct whiteheat_private *info;
344
345 info = kzalloc(sizeof(*info), GFP_KERNEL);
346 if (!info)
347 return -ENOMEM;
348
349 usb_set_serial_port_data(port, info);
350
351 return 0;
352}
353
354static int whiteheat_port_remove(struct usb_serial_port *port)
355{
356 struct whiteheat_private *info;
357
358 info = usb_get_serial_port_data(port);
359 kfree(info);
360
361 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362}
363
Alan Coxa509a7e2009-09-19 13:13:26 -0700364static int whiteheat_open(struct tty_struct *tty, struct usb_serial_port *port)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365{
Johan Hovold5c0c7582012-03-22 16:50:55 +0100366 int retval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 retval = start_command_port(port->serial);
369 if (retval)
370 goto exit;
371
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 /* send an open port command */
373 retval = firm_open(port);
374 if (retval) {
375 stop_command_port(port->serial);
376 goto exit;
377 }
378
379 retval = firm_purge(port, WHITEHEAT_PURGE_RX | WHITEHEAT_PURGE_TX);
380 if (retval) {
381 firm_close(port);
382 stop_command_port(port->serial);
383 goto exit;
384 }
385
Alan Cox72e27412008-07-22 11:09:29 +0100386 if (tty)
387 firm_setup_port(tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388
389 /* Work around HCD bugs */
390 usb_clear_halt(port->serial->dev, port->read_urb->pipe);
391 usb_clear_halt(port->serial->dev, port->write_urb->pipe);
392
Johan Hovold5c0c7582012-03-22 16:50:55 +0100393 retval = usb_serial_generic_open(tty, port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 if (retval) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 firm_close(port);
396 stop_command_port(port->serial);
397 goto exit;
398 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399exit:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 return retval;
401}
402
403
Alan Cox335f8512009-06-11 12:26:29 +0100404static void whiteheat_close(struct usb_serial_port *port)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 firm_report_tx_done(port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 firm_close(port);
408
Johan Hovold5c0c7582012-03-22 16:50:55 +0100409 usb_serial_generic_close(port);
410
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 stop_command_port(port->serial);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412}
413
Alan Cox60b33c12011-02-14 16:26:14 +0000414static int whiteheat_tiocmget(struct tty_struct *tty)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415{
Alan Cox95da3102008-07-22 11:09:07 +0100416 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 struct whiteheat_private *info = usb_get_serial_port_data(port);
418 unsigned int modem_signals = 0;
419
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420 firm_get_dtr_rts(port);
421 if (info->mcr & UART_MCR_DTR)
422 modem_signals |= TIOCM_DTR;
423 if (info->mcr & UART_MCR_RTS)
424 modem_signals |= TIOCM_RTS;
425
426 return modem_signals;
427}
428
Alan Cox20b9d172011-02-14 16:26:50 +0000429static int whiteheat_tiocmset(struct tty_struct *tty,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 unsigned int set, unsigned int clear)
431{
Alan Cox95da3102008-07-22 11:09:07 +0100432 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 struct whiteheat_private *info = usb_get_serial_port_data(port);
434
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 if (set & TIOCM_RTS)
436 info->mcr |= UART_MCR_RTS;
437 if (set & TIOCM_DTR)
438 info->mcr |= UART_MCR_DTR;
439
440 if (clear & TIOCM_RTS)
441 info->mcr &= ~UART_MCR_RTS;
442 if (clear & TIOCM_DTR)
443 info->mcr &= ~UART_MCR_DTR;
444
445 firm_set_dtr(port, info->mcr & UART_MCR_DTR);
446 firm_set_rts(port, info->mcr & UART_MCR_RTS);
447 return 0;
448}
449
450
Alan Cox00a0d0d2011-02-14 16:27:06 +0000451static int whiteheat_ioctl(struct tty_struct *tty,
Alan Cox80359a92008-07-22 11:09:16 +0100452 unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453{
Alan Cox95da3102008-07-22 11:09:07 +0100454 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 struct serial_struct serstruct;
456 void __user *user_arg = (void __user *)arg;
457
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700458 dev_dbg(&port->dev, "%s - cmd 0x%.4x\n", __func__, cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459
460 switch (cmd) {
Alan Cox80359a92008-07-22 11:09:16 +0100461 case TIOCGSERIAL:
462 memset(&serstruct, 0, sizeof(serstruct));
463 serstruct.type = PORT_16654;
464 serstruct.line = port->serial->minor;
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700465 serstruct.port = port->port_number;
Alan Cox80359a92008-07-22 11:09:16 +0100466 serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
Johan Hovold5c0c7582012-03-22 16:50:55 +0100467 serstruct.xmit_fifo_size = kfifo_size(&port->write_fifo);
Alan Cox80359a92008-07-22 11:09:16 +0100468 serstruct.custom_divisor = 0;
469 serstruct.baud_base = 460800;
470 serstruct.close_delay = CLOSING_DELAY;
471 serstruct.closing_wait = CLOSING_DELAY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472
Alan Cox80359a92008-07-22 11:09:16 +0100473 if (copy_to_user(user_arg, &serstruct, sizeof(serstruct)))
474 return -EFAULT;
475 break;
476 default:
477 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 }
479
480 return -ENOIOCTLCMD;
481}
482
483
Alan Cox80359a92008-07-22 11:09:16 +0100484static void whiteheat_set_termios(struct tty_struct *tty,
485 struct usb_serial_port *port, struct ktermios *old_termios)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486{
Alan Cox95da3102008-07-22 11:09:07 +0100487 firm_setup_port(tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488}
489
Alan Cox80359a92008-07-22 11:09:16 +0100490static void whiteheat_break_ctl(struct tty_struct *tty, int break_state)
491{
Alan Cox95da3102008-07-22 11:09:07 +0100492 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 firm_set_break(port, break_state);
494}
495
496
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497/*****************************************************************************
498 * Connect Tech's White Heat callback routines
499 *****************************************************************************/
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200500static void command_port_write_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501{
Greg Kroah-Hartman05400012007-06-15 15:44:13 -0700502 int status = urb->status;
503
Greg Kroah-Hartman05400012007-06-15 15:44:13 -0700504 if (status) {
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700505 dev_dbg(&urb->dev->dev, "nonzero urb status: %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 return;
507 }
508}
509
510
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200511static void command_port_read_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512{
Ming Leicdc97792008-02-24 18:41:47 +0800513 struct usb_serial_port *command_port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 struct whiteheat_command_private *command_info;
Greg Kroah-Hartman05400012007-06-15 15:44:13 -0700515 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 unsigned char *data = urb->transfer_buffer;
517 int result;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 command_info = usb_get_serial_port_data(command_port);
520 if (!command_info) {
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700521 dev_dbg(&urb->dev->dev, "%s - command_info is NULL, exiting.\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 return;
523 }
Greg Kroah-Hartman05400012007-06-15 15:44:13 -0700524 if (status) {
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700525 dev_dbg(&urb->dev->dev, "%s - nonzero urb status: %d\n", __func__, status);
Greg Kroah-Hartman05400012007-06-15 15:44:13 -0700526 if (status != -ENOENT)
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200527 command_info->command_finished = WHITEHEAT_CMD_FAILURE;
528 wake_up(&command_info->wait_command);
529 return;
530 }
531
Greg Kroah-Hartman59d33f22012-09-18 09:58:57 +0100532 usb_serial_debug_data(&command_port->dev, __func__, urb->actual_length, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
534 if (data[0] == WHITEHEAT_CMD_COMPLETE) {
535 command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200536 wake_up(&command_info->wait_command);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537 } else if (data[0] == WHITEHEAT_CMD_FAILURE) {
538 command_info->command_finished = WHITEHEAT_CMD_FAILURE;
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200539 wake_up(&command_info->wait_command);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540 } else if (data[0] == WHITEHEAT_EVENT) {
Alan Cox80359a92008-07-22 11:09:16 +0100541 /* These are unsolicited reports from the firmware, hence no
542 waiting command to wakeup */
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700543 dev_dbg(&urb->dev->dev, "%s - event received\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544 } else if (data[0] == WHITEHEAT_GET_DTR_RTS) {
Alan Cox80359a92008-07-22 11:09:16 +0100545 memcpy(command_info->result_buffer, &data[1],
546 urb->actual_length - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547 command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200548 wake_up(&command_info->wait_command);
Alan Cox80359a92008-07-22 11:09:16 +0100549 } else
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700550 dev_dbg(&urb->dev->dev, "%s - bad reply from firmware\n", __func__);
Alan Cox80359a92008-07-22 11:09:16 +0100551
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552 /* Continue trying to always read */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 result = usb_submit_urb(command_port->read_urb, GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554 if (result)
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700555 dev_dbg(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n",
Alan Cox80359a92008-07-22 11:09:16 +0100556 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557}
558
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560/*****************************************************************************
561 * Connect Tech's White Heat firmware interface
562 *****************************************************************************/
Alan Cox80359a92008-07-22 11:09:16 +0100563static int firm_send_command(struct usb_serial_port *port, __u8 command,
564 __u8 *data, __u8 datasize)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565{
566 struct usb_serial_port *command_port;
567 struct whiteheat_command_private *command_info;
568 struct whiteheat_private *info;
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700569 struct device *dev = &port->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570 __u8 *transfer_buffer;
571 int retval = 0;
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200572 int t;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700574 dev_dbg(dev, "%s - command %d\n", __func__, command);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575
576 command_port = port->serial->port[COMMAND_PORT];
577 command_info = usb_get_serial_port_data(command_port);
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200578 mutex_lock(&command_info->mutex);
Richard Knutsson38c3cb52007-03-26 22:00:28 -0800579 command_info->command_finished = false;
Alan Cox80359a92008-07-22 11:09:16 +0100580
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 transfer_buffer = (__u8 *)command_port->write_urb->transfer_buffer;
582 transfer_buffer[0] = command;
Alan Cox80359a92008-07-22 11:09:16 +0100583 memcpy(&transfer_buffer[1], data, datasize);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 command_port->write_urb->transfer_buffer_length = datasize + 1;
Alan Cox80359a92008-07-22 11:09:16 +0100585 retval = usb_submit_urb(command_port->write_urb, GFP_NOIO);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 if (retval) {
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700587 dev_dbg(dev, "%s - submit urb failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588 goto exit;
589 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590
591 /* wait for the command to complete */
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200592 t = wait_event_timeout(command_info->wait_command,
Richard Knutsson38c3cb52007-03-26 22:00:28 -0800593 (bool)command_info->command_finished, COMMAND_TIMEOUT);
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200594 if (!t)
595 usb_kill_urb(command_port->write_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596
Richard Knutsson38c3cb52007-03-26 22:00:28 -0800597 if (command_info->command_finished == false) {
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700598 dev_dbg(dev, "%s - command timed out.\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599 retval = -ETIMEDOUT;
600 goto exit;
601 }
602
603 if (command_info->command_finished == WHITEHEAT_CMD_FAILURE) {
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700604 dev_dbg(dev, "%s - command failed.\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605 retval = -EIO;
606 goto exit;
607 }
608
609 if (command_info->command_finished == WHITEHEAT_CMD_COMPLETE) {
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700610 dev_dbg(dev, "%s - command completed.\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611 switch (command) {
Alan Cox80359a92008-07-22 11:09:16 +0100612 case WHITEHEAT_GET_DTR_RTS:
613 info = usb_get_serial_port_data(port);
614 memcpy(&info->mcr, command_info->result_buffer,
615 sizeof(struct whiteheat_dr_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616 break;
617 }
618 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619exit:
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200620 mutex_unlock(&command_info->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621 return retval;
622}
623
624
Alan Cox80359a92008-07-22 11:09:16 +0100625static int firm_open(struct usb_serial_port *port)
626{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 struct whiteheat_simple open_command;
628
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700629 open_command.port = port->port_number + 1;
Alan Cox80359a92008-07-22 11:09:16 +0100630 return firm_send_command(port, WHITEHEAT_OPEN,
631 (__u8 *)&open_command, sizeof(open_command));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632}
633
634
Alan Cox80359a92008-07-22 11:09:16 +0100635static int firm_close(struct usb_serial_port *port)
636{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 struct whiteheat_simple close_command;
638
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700639 close_command.port = port->port_number + 1;
Alan Cox80359a92008-07-22 11:09:16 +0100640 return firm_send_command(port, WHITEHEAT_CLOSE,
641 (__u8 *)&close_command, sizeof(close_command));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642}
643
644
Alan Coxfe1ae7f2009-09-19 13:13:33 -0700645static void firm_setup_port(struct tty_struct *tty)
Alan Cox80359a92008-07-22 11:09:16 +0100646{
Alan Cox95da3102008-07-22 11:09:07 +0100647 struct usb_serial_port *port = tty->driver_data;
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700648 struct device *dev = &port->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649 struct whiteheat_port_settings port_settings;
Alan Coxadc8d742012-07-14 15:31:47 +0100650 unsigned int cflag = tty->termios.c_cflag;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700652 port_settings.port = port->port_number + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653
654 /* get the byte size */
655 switch (cflag & CSIZE) {
Alan Cox80359a92008-07-22 11:09:16 +0100656 case CS5: port_settings.bits = 5; break;
657 case CS6: port_settings.bits = 6; break;
658 case CS7: port_settings.bits = 7; break;
659 default:
660 case CS8: port_settings.bits = 8; break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661 }
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700662 dev_dbg(dev, "%s - data bits = %d\n", __func__, port_settings.bits);
Alan Cox80359a92008-07-22 11:09:16 +0100663
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 /* determine the parity */
665 if (cflag & PARENB)
666 if (cflag & CMSPAR)
667 if (cflag & PARODD)
668 port_settings.parity = WHITEHEAT_PAR_MARK;
669 else
670 port_settings.parity = WHITEHEAT_PAR_SPACE;
671 else
672 if (cflag & PARODD)
673 port_settings.parity = WHITEHEAT_PAR_ODD;
674 else
675 port_settings.parity = WHITEHEAT_PAR_EVEN;
676 else
677 port_settings.parity = WHITEHEAT_PAR_NONE;
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700678 dev_dbg(dev, "%s - parity = %c\n", __func__, port_settings.parity);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679
680 /* figure out the stop bits requested */
681 if (cflag & CSTOPB)
682 port_settings.stop = 2;
683 else
684 port_settings.stop = 1;
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700685 dev_dbg(dev, "%s - stop bits = %d\n", __func__, port_settings.stop);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
687 /* figure out the flow control settings */
688 if (cflag & CRTSCTS)
Alan Cox80359a92008-07-22 11:09:16 +0100689 port_settings.hflow = (WHITEHEAT_HFLOW_CTS |
690 WHITEHEAT_HFLOW_RTS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691 else
692 port_settings.hflow = WHITEHEAT_HFLOW_NONE;
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700693 dev_dbg(dev, "%s - hardware flow control = %s %s %s %s\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694 (port_settings.hflow & WHITEHEAT_HFLOW_CTS) ? "CTS" : "",
695 (port_settings.hflow & WHITEHEAT_HFLOW_RTS) ? "RTS" : "",
696 (port_settings.hflow & WHITEHEAT_HFLOW_DSR) ? "DSR" : "",
697 (port_settings.hflow & WHITEHEAT_HFLOW_DTR) ? "DTR" : "");
Alan Cox80359a92008-07-22 11:09:16 +0100698
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699 /* determine software flow control */
Alan Cox95da3102008-07-22 11:09:07 +0100700 if (I_IXOFF(tty))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 port_settings.sflow = WHITEHEAT_SFLOW_RXTX;
702 else
703 port_settings.sflow = WHITEHEAT_SFLOW_NONE;
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700704 dev_dbg(dev, "%s - software flow control = %c\n", __func__, port_settings.sflow);
Alan Cox80359a92008-07-22 11:09:16 +0100705
Alan Cox95da3102008-07-22 11:09:07 +0100706 port_settings.xon = START_CHAR(tty);
707 port_settings.xoff = STOP_CHAR(tty);
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700708 dev_dbg(dev, "%s - XON = %2x, XOFF = %2x\n", __func__, port_settings.xon, port_settings.xoff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709
710 /* get the baud rate wanted */
Alan Cox95da3102008-07-22 11:09:07 +0100711 port_settings.baud = tty_get_baud_rate(tty);
Greg Kroah-Hartman255b7032012-09-14 11:50:35 -0700712 dev_dbg(dev, "%s - baud rate = %d\n", __func__, port_settings.baud);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713
Alan Cox01d1df22007-10-18 01:24:23 -0700714 /* fixme: should set validated settings */
Alan Cox95da3102008-07-22 11:09:07 +0100715 tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 /* handle any settings that aren't specified in the tty structure */
717 port_settings.lloop = 0;
Alan Cox80359a92008-07-22 11:09:16 +0100718
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719 /* now send the message to the device */
Alan Coxfe1ae7f2009-09-19 13:13:33 -0700720 firm_send_command(port, WHITEHEAT_SETUP_PORT,
Alan Cox80359a92008-07-22 11:09:16 +0100721 (__u8 *)&port_settings, sizeof(port_settings));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722}
723
724
Alan Cox80359a92008-07-22 11:09:16 +0100725static int firm_set_rts(struct usb_serial_port *port, __u8 onoff)
726{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 struct whiteheat_set_rdb rts_command;
728
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700729 rts_command.port = port->port_number + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 rts_command.state = onoff;
Alan Cox80359a92008-07-22 11:09:16 +0100731 return firm_send_command(port, WHITEHEAT_SET_RTS,
732 (__u8 *)&rts_command, sizeof(rts_command));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733}
734
735
Alan Cox80359a92008-07-22 11:09:16 +0100736static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff)
737{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 struct whiteheat_set_rdb dtr_command;
739
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700740 dtr_command.port = port->port_number + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 dtr_command.state = onoff;
Alan Cox72e27412008-07-22 11:09:29 +0100742 return firm_send_command(port, WHITEHEAT_SET_DTR,
Alan Cox80359a92008-07-22 11:09:16 +0100743 (__u8 *)&dtr_command, sizeof(dtr_command));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744}
745
746
Alan Cox80359a92008-07-22 11:09:16 +0100747static int firm_set_break(struct usb_serial_port *port, __u8 onoff)
748{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 struct whiteheat_set_rdb break_command;
750
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700751 break_command.port = port->port_number + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 break_command.state = onoff;
Alan Cox72e27412008-07-22 11:09:29 +0100753 return firm_send_command(port, WHITEHEAT_SET_BREAK,
Alan Cox80359a92008-07-22 11:09:16 +0100754 (__u8 *)&break_command, sizeof(break_command));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755}
756
757
Alan Cox80359a92008-07-22 11:09:16 +0100758static int firm_purge(struct usb_serial_port *port, __u8 rxtx)
759{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 struct whiteheat_purge purge_command;
761
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700762 purge_command.port = port->port_number + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 purge_command.what = rxtx;
Alan Cox80359a92008-07-22 11:09:16 +0100764 return firm_send_command(port, WHITEHEAT_PURGE,
765 (__u8 *)&purge_command, sizeof(purge_command));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766}
767
768
Alan Cox80359a92008-07-22 11:09:16 +0100769static int firm_get_dtr_rts(struct usb_serial_port *port)
770{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771 struct whiteheat_simple get_dr_command;
772
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700773 get_dr_command.port = port->port_number + 1;
Alan Cox80359a92008-07-22 11:09:16 +0100774 return firm_send_command(port, WHITEHEAT_GET_DTR_RTS,
775 (__u8 *)&get_dr_command, sizeof(get_dr_command));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776}
777
778
Alan Cox80359a92008-07-22 11:09:16 +0100779static int firm_report_tx_done(struct usb_serial_port *port)
780{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781 struct whiteheat_simple close_command;
782
Greg Kroah-Hartman11438322013-06-06 10:32:00 -0700783 close_command.port = port->port_number + 1;
Alan Cox80359a92008-07-22 11:09:16 +0100784 return firm_send_command(port, WHITEHEAT_REPORT_TX_DONE,
785 (__u8 *)&close_command, sizeof(close_command));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786}
787
788
789/*****************************************************************************
790 * Connect Tech's White Heat utility functions
791 *****************************************************************************/
792static int start_command_port(struct usb_serial *serial)
793{
794 struct usb_serial_port *command_port;
795 struct whiteheat_command_private *command_info;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 int retval = 0;
Alan Cox80359a92008-07-22 11:09:16 +0100797
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 command_port = serial->port[COMMAND_PORT];
799 command_info = usb_get_serial_port_data(command_port);
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200800 mutex_lock(&command_info->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801 if (!command_info->port_running) {
802 /* Work around HCD bugs */
803 usb_clear_halt(serial->dev, command_port->read_urb->pipe);
804
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805 retval = usb_submit_urb(command_port->read_urb, GFP_KERNEL);
806 if (retval) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700807 dev_err(&serial->dev->dev,
808 "%s - failed submitting read urb, error %d\n",
809 __func__, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810 goto exit;
811 }
812 }
813 command_info->port_running++;
814
815exit:
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200816 mutex_unlock(&command_info->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817 return retval;
818}
819
820
821static void stop_command_port(struct usb_serial *serial)
822{
823 struct usb_serial_port *command_port;
824 struct whiteheat_command_private *command_info;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825
826 command_port = serial->port[COMMAND_PORT];
827 command_info = usb_get_serial_port_data(command_port);
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200828 mutex_lock(&command_info->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700829 command_info->port_running--;
830 if (!command_info->port_running)
831 usb_kill_urb(command_port->read_urb);
Oliver Neukum08a2b3b2007-05-24 13:52:51 +0200832 mutex_unlock(&command_info->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833}
834
Greg Kroah-Hartman68e24112012-05-08 15:46:14 -0700835module_usb_serial_driver(serial_drivers, id_table_combined);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836
Alan Cox80359a92008-07-22 11:09:16 +0100837MODULE_AUTHOR(DRIVER_AUTHOR);
838MODULE_DESCRIPTION(DRIVER_DESC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839MODULE_LICENSE("GPL");
840
David Woodhouseec6752f2008-05-31 01:35:29 +0300841MODULE_FIRMWARE("whiteheat.fw");
842MODULE_FIRMWARE("whiteheat_loader.fw");