xref: /openbmc/linux/drivers/usb/serial/ftdi_sio.c (revision 77d84ff8)
1 /*
2  * USB FTDI SIO driver
3  *
4  *	Copyright (C) 2009 - 2013
5  *	    Johan Hovold (jhovold@gmail.com)
6  *	Copyright (C) 1999 - 2001
7  *	    Greg Kroah-Hartman (greg@kroah.com)
8  *          Bill Ryder (bryder@sgi.com)
9  *	Copyright (C) 2002
10  *	    Kuba Ober (kuba@mareimbrium.org)
11  *
12  *	This program is free software; you can redistribute it and/or modify
13  *	it under the terms of the GNU General Public License as published by
14  *	the Free Software Foundation; either version 2 of the License, or
15  *	(at your option) any later version.
16  *
17  * See Documentation/usb/usb-serial.txt for more information on using this
18  * driver
19  *
20  * See http://ftdi-usb-sio.sourceforge.net for up to date testing info
21  *	and extra documentation
22  *
23  * Change entries from 2004 and earlier can be found in versions of this
24  * file in kernel versions prior to the 2.6.24 release.
25  *
26  */
27 
28 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
29 /* Thanx to FTDI for so kindly providing details of the protocol required */
30 /*   to talk to the device */
31 /* Thanx to gkh and the rest of the usb dev group for all code I have
32    assimilated :-) */
33 
34 #include <linux/kernel.h>
35 #include <linux/errno.h>
36 #include <linux/init.h>
37 #include <linux/slab.h>
38 #include <linux/tty.h>
39 #include <linux/tty_driver.h>
40 #include <linux/tty_flip.h>
41 #include <linux/module.h>
42 #include <linux/spinlock.h>
43 #include <linux/mutex.h>
44 #include <linux/uaccess.h>
45 #include <linux/usb.h>
46 #include <linux/serial.h>
47 #include <linux/usb/serial.h>
48 #include "ftdi_sio.h"
49 #include "ftdi_sio_ids.h"
50 
51 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr, Johan Hovold <jhovold@gmail.com>"
52 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
53 
54 
55 struct ftdi_private {
56 	enum ftdi_chip_type chip_type;
57 				/* type of device, either SIO or FT8U232AM */
58 	int baud_base;		/* baud base clock for divisor setting */
59 	int custom_divisor;	/* custom_divisor kludge, this is for
60 				   baud_base (different from what goes to the
61 				   chip!) */
62 	__u16 last_set_data_urb_value ;
63 				/* the last data state set - needed for doing
64 				 * a break
65 				 */
66 	int flags;		/* some ASYNC_xxxx flags are supported */
67 	unsigned long last_dtr_rts;	/* saved modem control outputs */
68 	char prev_status;        /* Used for TIOCMIWAIT */
69 	char transmit_empty;	/* If transmitter is empty or not */
70 	__u16 interface;	/* FT2232C, FT2232H or FT4232H port interface
71 				   (0 for FT232/245) */
72 
73 	speed_t force_baud;	/* if non-zero, force the baud rate to
74 				   this value */
75 	int force_rtscts;	/* if non-zero, force RTS-CTS to always
76 				   be enabled */
77 
78 	unsigned int latency;		/* latency setting in use */
79 	unsigned short max_packet_size;
80 	struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() and change_speed() */
81 };
82 
83 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
84 struct ftdi_sio_quirk {
85 	int (*probe)(struct usb_serial *);
86 	/* Special settings for probed ports. */
87 	void (*port_probe)(struct ftdi_private *);
88 };
89 
90 static int   ftdi_jtag_probe(struct usb_serial *serial);
91 static int   ftdi_mtxorb_hack_setup(struct usb_serial *serial);
92 static int   ftdi_NDI_device_setup(struct usb_serial *serial);
93 static int   ftdi_stmclite_probe(struct usb_serial *serial);
94 static int   ftdi_8u2232c_probe(struct usb_serial *serial);
95 static void  ftdi_USB_UIRT_setup(struct ftdi_private *priv);
96 static void  ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
97 
98 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
99 	.probe	= ftdi_jtag_probe,
100 };
101 
102 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
103 	.probe  = ftdi_mtxorb_hack_setup,
104 };
105 
106 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
107 	.probe	= ftdi_NDI_device_setup,
108 };
109 
110 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
111 	.port_probe = ftdi_USB_UIRT_setup,
112 };
113 
114 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
115 	.port_probe = ftdi_HE_TIRA1_setup,
116 };
117 
118 static struct ftdi_sio_quirk ftdi_stmclite_quirk = {
119 	.probe	= ftdi_stmclite_probe,
120 };
121 
122 static struct ftdi_sio_quirk ftdi_8u2232c_quirk = {
123 	.probe	= ftdi_8u2232c_probe,
124 };
125 
126 /*
127  * The 8U232AM has the same API as the sio except for:
128  * - it can support MUCH higher baudrates; up to:
129  *   o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
130  *   o 230400 at 12MHz
131  *   so .. 8U232AM's baudrate setting codes are different
132  * - it has a two byte status code.
133  * - it returns characters every 16ms (the FTDI does it every 40ms)
134  *
135  * the bcdDevice value is used to differentiate FT232BM and FT245BM from
136  * the earlier FT8U232AM and FT8U232BM.  For now, include all known VID/PID
137  * combinations in both tables.
138  * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
139  * but I don't know if those ever went into mass production. [Ian Abbott]
140  */
141 
142 
143 
144 /*
145  * Device ID not listed? Test it using
146  * /sys/bus/usb-serial/drivers/ftdi_sio/new_id and send a patch or report.
147  */
148 static struct usb_device_id id_table_combined [] = {
149 	{ USB_DEVICE(FTDI_VID, FTDI_ZEITCONTROL_TAGTRACE_MIFARE_PID) },
150 	{ USB_DEVICE(FTDI_VID, FTDI_CTI_MINI_PID) },
151 	{ USB_DEVICE(FTDI_VID, FTDI_CTI_NANO_PID) },
152 	{ USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
153 	{ USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
154 	{ USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
155 	{ USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
156 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
157 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
158 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
159 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
160 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
161 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
162 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
163 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
164 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_CAT_PID) },
165 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_WKEY_PID) },
166 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_RS232_PID) },
167 	{ USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
168 	{ USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
169 	{ USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
170 	{ USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
171 	{ USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
172 	{ USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
173 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
174 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
175 	{ USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
176 	{ USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) ,
177 		.driver_info = (kernel_ulong_t)&ftdi_8u2232c_quirk },
178 	{ USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
179 	{ USB_DEVICE(FTDI_VID, FTDI_232H_PID) },
180 	{ USB_DEVICE(FTDI_VID, FTDI_FTX_PID) },
181 	{ USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
182 	{ USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
183 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
184 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
185 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
186 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
187 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) },
188 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) },
189 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) },
190 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_CC_PID) },
191 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_AGP_PID) },
192 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
193 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
194 	{ USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
195 	{ USB_DEVICE(FTDI_VID, FTDI_LENZ_LIUSB_PID) },
196 	{ USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
197 	{ USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
198 	{ USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
199 	{ USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
200 	{ USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
201 	{ USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
202 	{ USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
203 	{ USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
204 	{ USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
205 	{ USB_DEVICE(FTDI_VID, FTDI_URBAN_0_PID) },
206 	{ USB_DEVICE(FTDI_VID, FTDI_URBAN_1_PID) },
207 	{ USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
208 	{ USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
209 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
210 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
211 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
212 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
213 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
214 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
215 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
216 	{ USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
217 	{ USB_DEVICE(FTDI_VID, FTDI_VARDAAN_PID) },
218 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
219 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
220 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
221 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
222 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
223 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
224 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
225 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
226 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
227 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
228 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
229 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
230 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
231 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
232 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
233 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
234 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
235 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
236 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
237 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
238 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
239 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
240 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
241 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
242 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
243 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
244 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
245 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
246 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
247 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
248 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
249 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
250 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
251 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
252 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
253 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
254 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
255 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
256 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
257 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
258 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
259 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
260 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
261 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
262 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
263 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
264 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
265 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
266 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
267 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
268 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
269 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
270 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
271 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
272 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
273 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
274 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
275 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
276 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
277 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
278 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
279 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
280 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
281 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
282 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
283 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
284 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
285 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
286 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
287 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
288 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
289 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
290 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
291 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
292 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
293 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
294 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
295 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
296 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
297 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
298 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
299 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
300 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
301 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
302 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
303 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
304 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
305 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
306 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
307 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
308 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
309 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
310 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
311 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
312 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
313 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
314 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
315 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
316 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
317 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
318 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
319 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
320 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
321 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
322 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
323 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
324 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
325 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
326 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
327 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
328 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
329 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
330 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
331 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
332 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
333 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
334 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
335 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
336 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
337 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
338 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
339 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
340 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
341 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
342 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
343 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
344 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
345 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
346 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
347 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
348 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
349 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
350 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
351 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
352 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
353 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
354 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
355 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
356 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
357 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
358 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
359 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
360 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
361 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
362 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
363 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
364 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
365 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
366 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
367 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
368 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
369 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
370 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
371 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
372 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
373 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
374 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
375 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
376 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
377 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
378 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
379 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
380 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
381 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
382 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
383 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
384 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
385 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
386 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
387 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
388 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
389 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
390 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
391 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
392 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
393 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
394 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
395 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
396 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
397 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
398 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
399 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
400 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
401 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
402 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
403 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
404 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
405 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
406 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
407 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
408 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
409 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
410 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
411 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
412 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
413 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
414 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
415 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
416 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
417 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
418 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
419 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
420 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
421 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
422 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
423 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
424 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
425 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
426 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
427 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
428 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
429 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
430 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
431 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
432 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
433 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
434 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
435 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
436 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
437 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
438 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
439 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
440 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
441 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
442 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
443 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
444 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
445 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
446 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
447 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
448 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
449 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
450 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
451 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
452 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
453 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
454 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
455 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
456 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
457 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
458 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
459 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
460 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
461 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
462 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
463 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
464 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
465 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
466 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
467 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
468 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
469 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
470 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
471 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
472 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
473 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
474 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
475 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
476 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
477 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
478 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
479 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
480 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
481 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
482 	{ USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
483 	{ USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
484 	{ USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
485 	{ USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
486 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
487 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
488 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
489 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
490 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
491 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
492 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
493 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
494 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
495 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
496 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
497 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
498 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
499 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
500 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
501 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
502 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
503 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
504 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
505 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
506 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
507 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
508 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
509 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
510 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
511 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
512 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
513 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
514 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
515 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
516 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
517 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
518 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
519 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
520 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
521 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
522 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
523 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
524 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
525 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
526 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
527 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
528 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
529 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
530 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
531 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
532 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
533 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_1_PID) },
534 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_2_PID) },
535 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_3_PID) },
536 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_4_PID) },
537 	{ USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
538 	{ USB_DEVICE(OCT_VID, OCT_US101_PID) },
539 	{ USB_DEVICE(OCT_VID, OCT_DK201_PID) },
540 	{ USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
541 		.driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
542 	{ USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
543 		.driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
544 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
545 	{ USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
546 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
547 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
548 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
549 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
550 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
551 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
552 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
553 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
554 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
555 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
556 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
557 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
558 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
559 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
560 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
561 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
562 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
563 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
564 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
565 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
566 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
567 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
568 	{ USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
569 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
570 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
571 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
572 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
573 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
574 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
575 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
576 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
577 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
578 	{ USB_DEVICE(FTDI_VID, FTDI_TAVIR_STK500_PID) },
579 	{ USB_DEVICE(FTDI_VID, FTDI_TIAO_UMPA_PID),
580 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
581 	/*
582 	 * ELV devices:
583 	 */
584 	{ USB_DEVICE(FTDI_ELV_VID, FTDI_ELV_WS300_PID) },
585 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
586 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
587 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
588 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
589 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
590 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
591 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
592 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
593 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
594 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
595 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
596 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
597 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
598 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
599 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
600 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
601 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
602 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
603 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
604 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
605 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
606 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
607 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
608 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
609 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
610 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
611 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
612 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
613 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
614 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
615 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
616 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
617 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
618 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
619 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
620 	{ USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
621 	{ USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
622 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
623 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
624 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
625 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
626 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
627 	{ USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
628 	{ USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
629 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
630 	{ USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
631 	{ USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
632 	{ USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
633 	{ USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
634 	{ USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
635 	{ USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
636 	{ USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
637 	{ USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
638 	{ USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
639 	{ USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
640 	{ USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) },
641 	{ USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
642 	{ USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) },
643 	{ USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
644 	{ USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
645 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
646 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
647 	{ USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
648 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
649 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
650 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
651 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
652 	{ USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
653 	{ USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
654 	{ USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
655 	{ USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
656 	{ USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
657 	{ USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
658 	{ USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
659 	{ USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
660 	{ USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
661 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
662 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
663 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_3_PID) },
664 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
665 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
666 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
667 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
668 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
669 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
670 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
671 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
672 	{ USB_DEVICE(FTDI_VID, FTDI_OMNI1509) },
673 	{ USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
674 	{ USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
675 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
676 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
677 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
678 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
679 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
680 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
681 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
682 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
683 	{ USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
684 	{ USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
685 	{ USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
686 	{ USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
687 	{ USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
688 	{ USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
689 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
690 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
691 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
692 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
693 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
694 	{ USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
695 	{ USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
696 	{ USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
697 	{ USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
698 	{ USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
699 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
700 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
701 	{ USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
702 	{ USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
703 	{ USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
704 	{ USB_DEVICE(FTDI_VID, FTDI_NZR_SEM_USB_PID) },
705 	{ USB_DEVICE(ICOM_VID, ICOM_ID_1_PID) },
706 	{ USB_DEVICE(ICOM_VID, ICOM_OPC_U_UC_PID) },
707 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C1_PID) },
708 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C2_PID) },
709 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2D_PID) },
710 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2VT_PID) },
711 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2VR_PID) },
712 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVT_PID) },
713 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVR_PID) },
714 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVT_PID) },
715 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVR_PID) },
716 	{ USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
717 	{ USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
718 	{ USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
719 	{ USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
720 	{ USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
721 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
722 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
723 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
724 	{ USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
725 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
726 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
727 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
728 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
729 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
730 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
731 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
732 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
733 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
734 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
735 	{ USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
736 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S03_PID) },
737 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_59_PID) },
738 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57A_PID) },
739 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57B_PID) },
740 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29A_PID) },
741 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29B_PID) },
742 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29F_PID) },
743 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62B_PID) },
744 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S01_PID) },
745 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63_PID) },
746 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29C_PID) },
747 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_81B_PID) },
748 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_82B_PID) },
749 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5D_PID) },
750 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K4Y_PID) },
751 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5G_PID) },
752 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S05_PID) },
753 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_60_PID) },
754 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_61_PID) },
755 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62_PID) },
756 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63B_PID) },
757 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_64_PID) },
758 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_65_PID) },
759 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92_PID) },
760 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92D_PID) },
761 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_W5R_PID) },
762 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_A5R_PID) },
763 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_PW1_PID) },
764 	{ USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
765 	{ USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
766 	{ USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
767 	{ USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
768 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
769 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) },
770 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
771 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
772 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID),
773 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
774 	{ USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
775 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
776 	{ USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
777 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
778 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
779 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
780 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
781 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
782 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_ICDI_BOARD_PID),
783 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
784 	{ USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
785 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
786 	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
787 	{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
788 
789 	/* Papouch devices based on FTDI chip */
790 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_PID) },
791 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_PID) },
792 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_PID) },
793 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_2_PID) },
794 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_2_PID) },
795 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_2_PID) },
796 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485S_PID) },
797 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485C_PID) },
798 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_LEC_PID) },
799 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB232_PID) },
800 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
801 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_IRAMP_PID) },
802 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK5_PID) },
803 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO8x8_PID) },
804 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
805 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x2_PID) },
806 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO10x1_PID) },
807 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO30x3_PID) },
808 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO60x3_PID) },
809 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x16_PID) },
810 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO3x32_PID) },
811 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK6_PID) },
812 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_UPSUSB_PID) },
813 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_MU_PID) },
814 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SIMUKEY_PID) },
815 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
816 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMUX_PID) },
817 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMSR_PID) },
818 
819 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
820 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
821 	{ USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
822 	{ USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
823 	{ USB_DEVICE(ATMEL_VID, STK541_PID) },
824 	{ USB_DEVICE(DE_VID, STB_PID) },
825 	{ USB_DEVICE(DE_VID, WHT_PID) },
826 	{ USB_DEVICE(ADI_VID, ADI_GNICE_PID),
827 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
828 	{ USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
829 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
830 	{ USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID,
831 					USB_CLASS_VENDOR_SPEC,
832 					USB_SUBCLASS_VENDOR_SPEC, 0x00) },
833 	{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
834 	{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
835 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
836 	{ USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
837 	{ USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
838 	{ USB_DEVICE(FTDI_VID, PI_C865_PID) },
839 	{ USB_DEVICE(FTDI_VID, PI_C857_PID) },
840 	{ USB_DEVICE(PI_VID, PI_C866_PID) },
841 	{ USB_DEVICE(PI_VID, PI_C663_PID) },
842 	{ USB_DEVICE(PI_VID, PI_C725_PID) },
843 	{ USB_DEVICE(PI_VID, PI_E517_PID) },
844 	{ USB_DEVICE(PI_VID, PI_C863_PID) },
845 	{ USB_DEVICE(PI_VID, PI_E861_PID) },
846 	{ USB_DEVICE(PI_VID, PI_C867_PID) },
847 	{ USB_DEVICE(PI_VID, PI_E609_PID) },
848 	{ USB_DEVICE(PI_VID, PI_E709_PID) },
849 	{ USB_DEVICE(PI_VID, PI_100F_PID) },
850 	{ USB_DEVICE(PI_VID, PI_1011_PID) },
851 	{ USB_DEVICE(PI_VID, PI_1012_PID) },
852 	{ USB_DEVICE(PI_VID, PI_1013_PID) },
853 	{ USB_DEVICE(PI_VID, PI_1014_PID) },
854 	{ USB_DEVICE(PI_VID, PI_1015_PID) },
855 	{ USB_DEVICE(PI_VID, PI_1016_PID) },
856 	{ USB_DEVICE(KONDO_VID, KONDO_USB_SERIAL_PID) },
857 	{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
858 	{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
859 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
860 	{ USB_DEVICE(FTDI_VID, TI_XDS100V2_PID),
861 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
862 	{ USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
863 	{ USB_DEVICE(FTDI_VID, HAMEG_HO720_PID) },
864 	{ USB_DEVICE(FTDI_VID, HAMEG_HO730_PID) },
865 	{ USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
866 	{ USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
867 	{ USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
868 	{ USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
869 	{ USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
870 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_ST_PID),
871 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
872 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SLITE_PID),
873 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
874 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH2_PID),
875 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
876 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH4_PID),
877 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
878 	{ USB_DEVICE(FTDI_VID, SEGWAY_RMP200_PID) },
879 	{ USB_DEVICE(FTDI_VID, ACCESIO_COM4SM_PID) },
880 	{ USB_DEVICE(IONICS_VID, IONICS_PLUGCOMPUTER_PID),
881 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
882 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_24_MASTER_WING_PID) },
883 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_PC_WING_PID) },
884 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_USB_DMX_PID) },
885 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MIDI_TIMECODE_PID) },
886 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MINI_WING_PID) },
887 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MAXI_WING_PID) },
888 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MEDIA_WING_PID) },
889 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_WING_PID) },
890 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LOGBOOKML_PID) },
891 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) },
892 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) },
893 	{ USB_DEVICE(FTDI_VID, FTDI_CINTERION_MC55I_PID) },
894 	{ USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
895 	{ USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
896 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
897 	{ USB_DEVICE(ST_VID, ST_STMCLT_2232_PID),
898 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
899 	{ USB_DEVICE(ST_VID, ST_STMCLT_4232_PID),
900 		.driver_info = (kernel_ulong_t)&ftdi_stmclite_quirk },
901 	{ USB_DEVICE(FTDI_VID, FTDI_RF_R106) },
902 	{ USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID),
903 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
904 	{ USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) },
905 	/* Crucible Devices */
906 	{ USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) },
907 	{ USB_DEVICE(FTDI_VID, FTDI_Z3X_PID) },
908 	{ }					/* Terminating entry */
909 };
910 
911 MODULE_DEVICE_TABLE(usb, id_table_combined);
912 
913 static const char *ftdi_chip_name[] = {
914 	[SIO] = "SIO",	/* the serial part of FT8U100AX */
915 	[FT8U232AM] = "FT8U232AM",
916 	[FT232BM] = "FT232BM",
917 	[FT2232C] = "FT2232C",
918 	[FT232RL] = "FT232RL",
919 	[FT2232H] = "FT2232H",
920 	[FT4232H] = "FT4232H",
921 	[FT232H]  = "FT232H",
922 	[FTX]     = "FT-X"
923 };
924 
925 
926 /* Used for TIOCMIWAIT */
927 #define FTDI_STATUS_B0_MASK	(FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
928 #define FTDI_STATUS_B1_MASK	(FTDI_RS_BI)
929 /* End TIOCMIWAIT */
930 
931 /* function prototypes for a FTDI serial converter */
932 static int  ftdi_sio_probe(struct usb_serial *serial,
933 					const struct usb_device_id *id);
934 static int  ftdi_sio_port_probe(struct usb_serial_port *port);
935 static int  ftdi_sio_port_remove(struct usb_serial_port *port);
936 static int  ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
937 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
938 static void ftdi_process_read_urb(struct urb *urb);
939 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
940 						void *dest, size_t size);
941 static void ftdi_set_termios(struct tty_struct *tty,
942 			struct usb_serial_port *port, struct ktermios *old);
943 static int  ftdi_tiocmget(struct tty_struct *tty);
944 static int  ftdi_tiocmset(struct tty_struct *tty,
945 			unsigned int set, unsigned int clear);
946 static int  ftdi_ioctl(struct tty_struct *tty,
947 			unsigned int cmd, unsigned long arg);
948 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
949 static bool ftdi_tx_empty(struct usb_serial_port *port);
950 static int ftdi_get_modem_status(struct usb_serial_port *port,
951 						unsigned char status[2]);
952 
953 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
954 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
955 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
956 static __u32 ftdi_232bm_baud_to_divisor(int baud);
957 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
958 static __u32 ftdi_2232h_baud_to_divisor(int baud);
959 
960 static struct usb_serial_driver ftdi_sio_device = {
961 	.driver = {
962 		.owner =	THIS_MODULE,
963 		.name =		"ftdi_sio",
964 	},
965 	.description =		"FTDI USB Serial Device",
966 	.id_table =		id_table_combined,
967 	.num_ports =		1,
968 	.bulk_in_size =		512,
969 	.bulk_out_size =	256,
970 	.probe =		ftdi_sio_probe,
971 	.port_probe =		ftdi_sio_port_probe,
972 	.port_remove =		ftdi_sio_port_remove,
973 	.open =			ftdi_open,
974 	.dtr_rts =		ftdi_dtr_rts,
975 	.throttle =		usb_serial_generic_throttle,
976 	.unthrottle =		usb_serial_generic_unthrottle,
977 	.process_read_urb =	ftdi_process_read_urb,
978 	.prepare_write_buffer =	ftdi_prepare_write_buffer,
979 	.tiocmget =		ftdi_tiocmget,
980 	.tiocmset =		ftdi_tiocmset,
981 	.tiocmiwait =		usb_serial_generic_tiocmiwait,
982 	.get_icount =           usb_serial_generic_get_icount,
983 	.ioctl =		ftdi_ioctl,
984 	.set_termios =		ftdi_set_termios,
985 	.break_ctl =		ftdi_break_ctl,
986 	.tx_empty =		ftdi_tx_empty,
987 };
988 
989 static struct usb_serial_driver * const serial_drivers[] = {
990 	&ftdi_sio_device, NULL
991 };
992 
993 
994 #define WDR_TIMEOUT 5000 /* default urb timeout */
995 #define WDR_SHORT_TIMEOUT 1000	/* shorter urb timeout */
996 
997 /*
998  * ***************************************************************************
999  * Utility functions
1000  * ***************************************************************************
1001  */
1002 
1003 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
1004 {
1005 	unsigned short int divisor;
1006 	/* divisor shifted 3 bits to the left */
1007 	int divisor3 = base / 2 / baud;
1008 	if ((divisor3 & 0x7) == 7)
1009 		divisor3++; /* round x.7/8 up to x+1 */
1010 	divisor = divisor3 >> 3;
1011 	divisor3 &= 0x7;
1012 	if (divisor3 == 1)
1013 		divisor |= 0xc000;
1014 	else if (divisor3 >= 4)
1015 		divisor |= 0x4000;
1016 	else if (divisor3 != 0)
1017 		divisor |= 0x8000;
1018 	else if (divisor == 1)
1019 		divisor = 0;	/* special case for maximum baud rate */
1020 	return divisor;
1021 }
1022 
1023 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
1024 {
1025 	 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1026 }
1027 
1028 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
1029 {
1030 	static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
1031 	__u32 divisor;
1032 	/* divisor shifted 3 bits to the left */
1033 	int divisor3 = base / 2 / baud;
1034 	divisor = divisor3 >> 3;
1035 	divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
1036 	/* Deal with special cases for highest baud rates. */
1037 	if (divisor == 1)
1038 		divisor = 0;
1039 	else if (divisor == 0x4001)
1040 		divisor = 1;
1041 	return divisor;
1042 }
1043 
1044 static __u32 ftdi_232bm_baud_to_divisor(int baud)
1045 {
1046 	 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1047 }
1048 
1049 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
1050 {
1051 	static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
1052 	__u32 divisor;
1053 	int divisor3;
1054 
1055 	/* hi-speed baud rate is 10-bit sampling instead of 16-bit */
1056 	divisor3 = base * 8 / (baud * 10);
1057 
1058 	divisor = divisor3 >> 3;
1059 	divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
1060 	/* Deal with special cases for highest baud rates. */
1061 	if (divisor == 1)
1062 		divisor = 0;
1063 	else if (divisor == 0x4001)
1064 		divisor = 1;
1065 	/*
1066 	 * Set this bit to turn off a divide by 2.5 on baud rate generator
1067 	 * This enables baud rates up to 12Mbaud but cannot reach below 1200
1068 	 * baud with this bit set
1069 	 */
1070 	divisor |= 0x00020000;
1071 	return divisor;
1072 }
1073 
1074 static __u32 ftdi_2232h_baud_to_divisor(int baud)
1075 {
1076 	 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
1077 }
1078 
1079 #define set_mctrl(port, set)		update_mctrl((port), (set), 0)
1080 #define clear_mctrl(port, clear)	update_mctrl((port), 0, (clear))
1081 
1082 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
1083 							unsigned int clear)
1084 {
1085 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1086 	struct device *dev = &port->dev;
1087 	unsigned urb_value;
1088 	int rv;
1089 
1090 	if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
1091 		dev_dbg(dev, "%s - DTR|RTS not being set|cleared\n", __func__);
1092 		return 0;	/* no change */
1093 	}
1094 
1095 	clear &= ~set;	/* 'set' takes precedence over 'clear' */
1096 	urb_value = 0;
1097 	if (clear & TIOCM_DTR)
1098 		urb_value |= FTDI_SIO_SET_DTR_LOW;
1099 	if (clear & TIOCM_RTS)
1100 		urb_value |= FTDI_SIO_SET_RTS_LOW;
1101 	if (set & TIOCM_DTR)
1102 		urb_value |= FTDI_SIO_SET_DTR_HIGH;
1103 	if (set & TIOCM_RTS)
1104 		urb_value |= FTDI_SIO_SET_RTS_HIGH;
1105 	rv = usb_control_msg(port->serial->dev,
1106 			       usb_sndctrlpipe(port->serial->dev, 0),
1107 			       FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1108 			       FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
1109 			       urb_value, priv->interface,
1110 			       NULL, 0, WDR_TIMEOUT);
1111 	if (rv < 0) {
1112 		dev_dbg(dev, "%s Error from MODEM_CTRL urb: DTR %s, RTS %s\n",
1113 			__func__,
1114 			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
1115 			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
1116 		rv = usb_translate_errors(rv);
1117 	} else {
1118 		dev_dbg(dev, "%s - DTR %s, RTS %s\n", __func__,
1119 			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
1120 			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
1121 		/* FIXME: locking on last_dtr_rts */
1122 		priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
1123 	}
1124 	return rv;
1125 }
1126 
1127 
1128 static __u32 get_ftdi_divisor(struct tty_struct *tty,
1129 						struct usb_serial_port *port)
1130 {
1131 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1132 	struct device *dev = &port->dev;
1133 	__u32 div_value = 0;
1134 	int div_okay = 1;
1135 	int baud;
1136 
1137 	/*
1138 	 * The logic involved in setting the baudrate can be cleanly split into
1139 	 * 3 steps.
1140 	 * 1. Standard baud rates are set in tty->termios->c_cflag
1141 	 * 2. If these are not enough, you can set any speed using alt_speed as
1142 	 * follows:
1143 	 *    - set tty->termios->c_cflag speed to B38400
1144 	 *    - set your real speed in tty->alt_speed; it gets ignored when
1145 	 *      alt_speed==0, (or)
1146 	 *    - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1147 	 *	follows:
1148 	 *      flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1149 	 *	this just sets alt_speed to (HI: 57600, VHI: 115200,
1150 	 *	SHI: 230400, WARP: 460800)
1151 	 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1152 	 * 3. You can also set baud rate by setting custom divisor as follows
1153 	 *    - set tty->termios->c_cflag speed to B38400
1154 	 *    - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1155 	 *	follows:
1156 	 *      o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1157 	 *      o custom_divisor set to baud_base / your_new_baudrate
1158 	 * ** Step 3 is done courtesy of code borrowed from serial.c
1159 	 *    I should really spend some time and separate + move this common
1160 	 *    code to serial.c, it is replicated in nearly every serial driver
1161 	 *    you see.
1162 	 */
1163 
1164 	/* 1. Get the baud rate from the tty settings, this observes
1165 	      alt_speed hack */
1166 
1167 	baud = tty_get_baud_rate(tty);
1168 	dev_dbg(dev, "%s - tty_get_baud_rate reports speed %d\n", __func__, baud);
1169 
1170 	/* 2. Observe async-compatible custom_divisor hack, update baudrate
1171 	   if needed */
1172 
1173 	if (baud == 38400 &&
1174 	    ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1175 	     (priv->custom_divisor)) {
1176 		baud = priv->baud_base / priv->custom_divisor;
1177 		dev_dbg(dev, "%s - custom divisor %d sets baud rate to %d\n",
1178 			__func__, priv->custom_divisor, baud);
1179 	}
1180 
1181 	/* 3. Convert baudrate to device-specific divisor */
1182 
1183 	if (!baud)
1184 		baud = 9600;
1185 	switch (priv->chip_type) {
1186 	case SIO: /* SIO chip */
1187 		switch (baud) {
1188 		case 300: div_value = ftdi_sio_b300; break;
1189 		case 600: div_value = ftdi_sio_b600; break;
1190 		case 1200: div_value = ftdi_sio_b1200; break;
1191 		case 2400: div_value = ftdi_sio_b2400; break;
1192 		case 4800: div_value = ftdi_sio_b4800; break;
1193 		case 9600: div_value = ftdi_sio_b9600; break;
1194 		case 19200: div_value = ftdi_sio_b19200; break;
1195 		case 38400: div_value = ftdi_sio_b38400; break;
1196 		case 57600: div_value = ftdi_sio_b57600;  break;
1197 		case 115200: div_value = ftdi_sio_b115200; break;
1198 		} /* baud */
1199 		if (div_value == 0) {
1200 			dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n",
1201 				__func__,  baud);
1202 			div_value = ftdi_sio_b9600;
1203 			baud = 9600;
1204 			div_okay = 0;
1205 		}
1206 		break;
1207 	case FT8U232AM: /* 8U232AM chip */
1208 		if (baud <= 3000000) {
1209 			div_value = ftdi_232am_baud_to_divisor(baud);
1210 		} else {
1211 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1212 			baud = 9600;
1213 			div_value = ftdi_232am_baud_to_divisor(9600);
1214 			div_okay = 0;
1215 		}
1216 		break;
1217 	case FT232BM: /* FT232BM chip */
1218 	case FT2232C: /* FT2232C chip */
1219 	case FT232RL: /* FT232RL chip */
1220 	case FTX:     /* FT-X series */
1221 		if (baud <= 3000000) {
1222 			__u16 product_id = le16_to_cpu(
1223 				port->serial->dev->descriptor.idProduct);
1224 			if (((FTDI_NDI_HUC_PID == product_id) ||
1225 			     (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1226 			     (FTDI_NDI_FUTURE_2_PID == product_id) ||
1227 			     (FTDI_NDI_FUTURE_3_PID == product_id) ||
1228 			     (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1229 			    (baud == 19200)) {
1230 				baud = 1200000;
1231 			}
1232 			div_value = ftdi_232bm_baud_to_divisor(baud);
1233 		} else {
1234 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1235 			div_value = ftdi_232bm_baud_to_divisor(9600);
1236 			div_okay = 0;
1237 			baud = 9600;
1238 		}
1239 		break;
1240 	case FT2232H: /* FT2232H chip */
1241 	case FT4232H: /* FT4232H chip */
1242 	case FT232H:  /* FT232H chip */
1243 		if ((baud <= 12000000) && (baud >= 1200)) {
1244 			div_value = ftdi_2232h_baud_to_divisor(baud);
1245 		} else if (baud < 1200) {
1246 			div_value = ftdi_232bm_baud_to_divisor(baud);
1247 		} else {
1248 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1249 			div_value = ftdi_232bm_baud_to_divisor(9600);
1250 			div_okay = 0;
1251 			baud = 9600;
1252 		}
1253 		break;
1254 	} /* priv->chip_type */
1255 
1256 	if (div_okay) {
1257 		dev_dbg(dev, "%s - Baud rate set to %d (divisor 0x%lX) on chip %s\n",
1258 			__func__, baud, (unsigned long)div_value,
1259 			ftdi_chip_name[priv->chip_type]);
1260 	}
1261 
1262 	tty_encode_baud_rate(tty, baud, baud);
1263 	return div_value;
1264 }
1265 
1266 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1267 {
1268 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1269 	__u16 urb_value;
1270 	__u16 urb_index;
1271 	__u32 urb_index_value;
1272 	int rv;
1273 
1274 	urb_index_value = get_ftdi_divisor(tty, port);
1275 	urb_value = (__u16)urb_index_value;
1276 	urb_index = (__u16)(urb_index_value >> 16);
1277 	if ((priv->chip_type == FT2232C) || (priv->chip_type == FT2232H) ||
1278 		(priv->chip_type == FT4232H) || (priv->chip_type == FT232H)) {
1279 		/* Probably the BM type needs the MSB of the encoded fractional
1280 		 * divider also moved like for the chips above. Any infos? */
1281 		urb_index = (__u16)((urb_index << 8) | priv->interface);
1282 	}
1283 
1284 	rv = usb_control_msg(port->serial->dev,
1285 			    usb_sndctrlpipe(port->serial->dev, 0),
1286 			    FTDI_SIO_SET_BAUDRATE_REQUEST,
1287 			    FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1288 			    urb_value, urb_index,
1289 			    NULL, 0, WDR_SHORT_TIMEOUT);
1290 	return rv;
1291 }
1292 
1293 static int write_latency_timer(struct usb_serial_port *port)
1294 {
1295 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1296 	struct usb_device *udev = port->serial->dev;
1297 	int rv;
1298 	int l = priv->latency;
1299 
1300 	if (priv->flags & ASYNC_LOW_LATENCY)
1301 		l = 1;
1302 
1303 	dev_dbg(&port->dev, "%s: setting latency timer = %i\n", __func__, l);
1304 
1305 	rv = usb_control_msg(udev,
1306 			     usb_sndctrlpipe(udev, 0),
1307 			     FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1308 			     FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1309 			     l, priv->interface,
1310 			     NULL, 0, WDR_TIMEOUT);
1311 	if (rv < 0)
1312 		dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1313 	return rv;
1314 }
1315 
1316 static int read_latency_timer(struct usb_serial_port *port)
1317 {
1318 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1319 	struct usb_device *udev = port->serial->dev;
1320 	unsigned char *buf;
1321 	int rv;
1322 
1323 	buf = kmalloc(1, GFP_KERNEL);
1324 	if (!buf)
1325 		return -ENOMEM;
1326 
1327 	rv = usb_control_msg(udev,
1328 			     usb_rcvctrlpipe(udev, 0),
1329 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1330 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1331 			     0, priv->interface,
1332 			     buf, 1, WDR_TIMEOUT);
1333 	if (rv < 0)
1334 		dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1335 	else
1336 		priv->latency = buf[0];
1337 
1338 	kfree(buf);
1339 
1340 	return rv;
1341 }
1342 
1343 static int get_serial_info(struct usb_serial_port *port,
1344 				struct serial_struct __user *retinfo)
1345 {
1346 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1347 	struct serial_struct tmp;
1348 
1349 	if (!retinfo)
1350 		return -EFAULT;
1351 	memset(&tmp, 0, sizeof(tmp));
1352 	tmp.flags = priv->flags;
1353 	tmp.baud_base = priv->baud_base;
1354 	tmp.custom_divisor = priv->custom_divisor;
1355 	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1356 		return -EFAULT;
1357 	return 0;
1358 }
1359 
1360 static int set_serial_info(struct tty_struct *tty,
1361 	struct usb_serial_port *port, struct serial_struct __user *newinfo)
1362 {
1363 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1364 	struct serial_struct new_serial;
1365 	struct ftdi_private old_priv;
1366 
1367 	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1368 		return -EFAULT;
1369 
1370 	mutex_lock(&priv->cfg_lock);
1371 	old_priv = *priv;
1372 
1373 	/* Do error checking and permission checking */
1374 
1375 	if (!capable(CAP_SYS_ADMIN)) {
1376 		if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1377 		     (priv->flags & ~ASYNC_USR_MASK))) {
1378 			mutex_unlock(&priv->cfg_lock);
1379 			return -EPERM;
1380 		}
1381 		priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1382 			       (new_serial.flags & ASYNC_USR_MASK));
1383 		priv->custom_divisor = new_serial.custom_divisor;
1384 		goto check_and_exit;
1385 	}
1386 
1387 	if (new_serial.baud_base != priv->baud_base) {
1388 		mutex_unlock(&priv->cfg_lock);
1389 		return -EINVAL;
1390 	}
1391 
1392 	/* Make the changes - these are privileged changes! */
1393 
1394 	priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1395 					(new_serial.flags & ASYNC_FLAGS));
1396 	priv->custom_divisor = new_serial.custom_divisor;
1397 
1398 	write_latency_timer(port);
1399 
1400 check_and_exit:
1401 	if ((old_priv.flags & ASYNC_SPD_MASK) !=
1402 	     (priv->flags & ASYNC_SPD_MASK)) {
1403 		if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1404 			tty->alt_speed = 57600;
1405 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1406 			tty->alt_speed = 115200;
1407 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1408 			tty->alt_speed = 230400;
1409 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1410 			tty->alt_speed = 460800;
1411 		else
1412 			tty->alt_speed = 0;
1413 	}
1414 	if (((old_priv.flags & ASYNC_SPD_MASK) !=
1415 	     (priv->flags & ASYNC_SPD_MASK)) ||
1416 	    (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1417 	     (old_priv.custom_divisor != priv->custom_divisor))) {
1418 		change_speed(tty, port);
1419 		mutex_unlock(&priv->cfg_lock);
1420 	}
1421 	else
1422 		mutex_unlock(&priv->cfg_lock);
1423 	return 0;
1424 }
1425 
1426 static int get_lsr_info(struct usb_serial_port *port,
1427 			struct serial_struct __user *retinfo)
1428 {
1429 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1430 	unsigned int result = 0;
1431 
1432 	if (!retinfo)
1433 		return -EFAULT;
1434 
1435 	if (priv->transmit_empty)
1436 		result = TIOCSER_TEMT;
1437 
1438 	if (copy_to_user(retinfo, &result, sizeof(unsigned int)))
1439 		return -EFAULT;
1440 	return 0;
1441 }
1442 
1443 
1444 /* Determine type of FTDI chip based on USB config and descriptor. */
1445 static void ftdi_determine_type(struct usb_serial_port *port)
1446 {
1447 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1448 	struct usb_serial *serial = port->serial;
1449 	struct usb_device *udev = serial->dev;
1450 	unsigned version;
1451 	unsigned interfaces;
1452 
1453 	/* Assume it is not the original SIO device for now. */
1454 	priv->baud_base = 48000000 / 2;
1455 
1456 	version = le16_to_cpu(udev->descriptor.bcdDevice);
1457 	interfaces = udev->actconfig->desc.bNumInterfaces;
1458 	dev_dbg(&port->dev, "%s: bcdDevice = 0x%x, bNumInterfaces = %u\n", __func__,
1459 		version, interfaces);
1460 	if (interfaces > 1) {
1461 		int inter;
1462 
1463 		/* Multiple interfaces.*/
1464 		if (version == 0x0800) {
1465 			priv->chip_type = FT4232H;
1466 			/* Hi-speed - baud clock runs at 120MHz */
1467 			priv->baud_base = 120000000 / 2;
1468 		} else if (version == 0x0700) {
1469 			priv->chip_type = FT2232H;
1470 			/* Hi-speed - baud clock runs at 120MHz */
1471 			priv->baud_base = 120000000 / 2;
1472 		} else
1473 			priv->chip_type = FT2232C;
1474 
1475 		/* Determine interface code. */
1476 		inter = serial->interface->altsetting->desc.bInterfaceNumber;
1477 		if (inter == 0) {
1478 			priv->interface = INTERFACE_A;
1479 		} else  if (inter == 1) {
1480 			priv->interface = INTERFACE_B;
1481 		} else  if (inter == 2) {
1482 			priv->interface = INTERFACE_C;
1483 		} else  if (inter == 3) {
1484 			priv->interface = INTERFACE_D;
1485 		}
1486 		/* BM-type devices have a bug where bcdDevice gets set
1487 		 * to 0x200 when iSerialNumber is 0.  */
1488 		if (version < 0x500) {
1489 			dev_dbg(&port->dev,
1490 				"%s: something fishy - bcdDevice too low for multi-interface device\n",
1491 				__func__);
1492 		}
1493 	} else if (version < 0x200) {
1494 		/* Old device.  Assume it's the original SIO. */
1495 		priv->chip_type = SIO;
1496 		priv->baud_base = 12000000 / 16;
1497 	} else if (version < 0x400) {
1498 		/* Assume it's an FT8U232AM (or FT8U245AM) */
1499 		/* (It might be a BM because of the iSerialNumber bug,
1500 		 * but it will still work as an AM device.) */
1501 		priv->chip_type = FT8U232AM;
1502 	} else if (version < 0x600) {
1503 		/* Assume it's an FT232BM (or FT245BM) */
1504 		priv->chip_type = FT232BM;
1505 	} else if (version < 0x900) {
1506 		/* Assume it's an FT232RL */
1507 		priv->chip_type = FT232RL;
1508 	} else if (version < 0x1000) {
1509 		/* Assume it's an FT232H */
1510 		priv->chip_type = FT232H;
1511 	} else {
1512 		/* Assume it's an FT-X series device */
1513 		priv->chip_type = FTX;
1514 	}
1515 
1516 	dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1517 }
1518 
1519 
1520 /* Determine the maximum packet size for the device.  This depends on the chip
1521  * type and the USB host capabilities.  The value should be obtained from the
1522  * device descriptor as the chip will use the appropriate values for the host.*/
1523 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1524 {
1525 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1526 	struct usb_serial *serial = port->serial;
1527 	struct usb_device *udev = serial->dev;
1528 
1529 	struct usb_interface *interface = serial->interface;
1530 	struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1531 
1532 	unsigned num_endpoints;
1533 	int i;
1534 
1535 	num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1536 	dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1537 
1538 	/* NOTE: some customers have programmed FT232R/FT245R devices
1539 	 * with an endpoint size of 0 - not good.  In this case, we
1540 	 * want to override the endpoint descriptor setting and use a
1541 	 * value of 64 for wMaxPacketSize */
1542 	for (i = 0; i < num_endpoints; i++) {
1543 		dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1544 			interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1545 		ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1546 		if (ep_desc->wMaxPacketSize == 0) {
1547 			ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1548 			dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1549 		}
1550 	}
1551 
1552 	/* set max packet size based on descriptor */
1553 	priv->max_packet_size = usb_endpoint_maxp(ep_desc);
1554 
1555 	dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1556 }
1557 
1558 
1559 /*
1560  * ***************************************************************************
1561  * Sysfs Attribute
1562  * ***************************************************************************
1563  */
1564 
1565 static ssize_t latency_timer_show(struct device *dev,
1566 				  struct device_attribute *attr, char *buf)
1567 {
1568 	struct usb_serial_port *port = to_usb_serial_port(dev);
1569 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1570 	if (priv->flags & ASYNC_LOW_LATENCY)
1571 		return sprintf(buf, "1\n");
1572 	else
1573 		return sprintf(buf, "%i\n", priv->latency);
1574 }
1575 
1576 /* Write a new value of the latency timer, in units of milliseconds. */
1577 static ssize_t latency_timer_store(struct device *dev,
1578 				   struct device_attribute *attr,
1579 				   const char *valbuf, size_t count)
1580 {
1581 	struct usb_serial_port *port = to_usb_serial_port(dev);
1582 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1583 	int v = simple_strtoul(valbuf, NULL, 10);
1584 	int rv;
1585 
1586 	priv->latency = v;
1587 	rv = write_latency_timer(port);
1588 	if (rv < 0)
1589 		return -EIO;
1590 	return count;
1591 }
1592 static DEVICE_ATTR_RW(latency_timer);
1593 
1594 /* Write an event character directly to the FTDI register.  The ASCII
1595    value is in the low 8 bits, with the enable bit in the 9th bit. */
1596 static ssize_t store_event_char(struct device *dev,
1597 	struct device_attribute *attr, const char *valbuf, size_t count)
1598 {
1599 	struct usb_serial_port *port = to_usb_serial_port(dev);
1600 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1601 	struct usb_device *udev = port->serial->dev;
1602 	int v = simple_strtoul(valbuf, NULL, 10);
1603 	int rv;
1604 
1605 	dev_dbg(&port->dev, "%s: setting event char = %i\n", __func__, v);
1606 
1607 	rv = usb_control_msg(udev,
1608 			     usb_sndctrlpipe(udev, 0),
1609 			     FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1610 			     FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1611 			     v, priv->interface,
1612 			     NULL, 0, WDR_TIMEOUT);
1613 	if (rv < 0) {
1614 		dev_dbg(&port->dev, "Unable to write event character: %i\n", rv);
1615 		return -EIO;
1616 	}
1617 
1618 	return count;
1619 }
1620 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1621 
1622 static int create_sysfs_attrs(struct usb_serial_port *port)
1623 {
1624 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1625 	int retval = 0;
1626 
1627 	/* XXX I've no idea if the original SIO supports the event_char
1628 	 * sysfs parameter, so I'm playing it safe.  */
1629 	if (priv->chip_type != SIO) {
1630 		dev_dbg(&port->dev, "sysfs attributes for %s\n", ftdi_chip_name[priv->chip_type]);
1631 		retval = device_create_file(&port->dev, &dev_attr_event_char);
1632 		if ((!retval) &&
1633 		    (priv->chip_type == FT232BM ||
1634 		     priv->chip_type == FT2232C ||
1635 		     priv->chip_type == FT232RL ||
1636 		     priv->chip_type == FT2232H ||
1637 		     priv->chip_type == FT4232H ||
1638 		     priv->chip_type == FT232H ||
1639 		     priv->chip_type == FTX)) {
1640 			retval = device_create_file(&port->dev,
1641 						    &dev_attr_latency_timer);
1642 		}
1643 	}
1644 	return retval;
1645 }
1646 
1647 static void remove_sysfs_attrs(struct usb_serial_port *port)
1648 {
1649 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1650 
1651 	/* XXX see create_sysfs_attrs */
1652 	if (priv->chip_type != SIO) {
1653 		device_remove_file(&port->dev, &dev_attr_event_char);
1654 		if (priv->chip_type == FT232BM ||
1655 		    priv->chip_type == FT2232C ||
1656 		    priv->chip_type == FT232RL ||
1657 		    priv->chip_type == FT2232H ||
1658 		    priv->chip_type == FT4232H ||
1659 		    priv->chip_type == FT232H ||
1660 		    priv->chip_type == FTX) {
1661 			device_remove_file(&port->dev, &dev_attr_latency_timer);
1662 		}
1663 	}
1664 
1665 }
1666 
1667 /*
1668  * ***************************************************************************
1669  * FTDI driver specific functions
1670  * ***************************************************************************
1671  */
1672 
1673 /* Probe function to check for special devices */
1674 static int ftdi_sio_probe(struct usb_serial *serial,
1675 					const struct usb_device_id *id)
1676 {
1677 	struct ftdi_sio_quirk *quirk =
1678 				(struct ftdi_sio_quirk *)id->driver_info;
1679 
1680 	if (quirk && quirk->probe) {
1681 		int ret = quirk->probe(serial);
1682 		if (ret != 0)
1683 			return ret;
1684 	}
1685 
1686 	usb_set_serial_data(serial, (void *)id->driver_info);
1687 
1688 	return 0;
1689 }
1690 
1691 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1692 {
1693 	struct ftdi_private *priv;
1694 	struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1695 
1696 
1697 	priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1698 	if (!priv) {
1699 		dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1700 					sizeof(struct ftdi_private));
1701 		return -ENOMEM;
1702 	}
1703 
1704 	mutex_init(&priv->cfg_lock);
1705 
1706 	priv->flags = ASYNC_LOW_LATENCY;
1707 
1708 	if (quirk && quirk->port_probe)
1709 		quirk->port_probe(priv);
1710 
1711 	usb_set_serial_port_data(port, priv);
1712 
1713 	ftdi_determine_type(port);
1714 	ftdi_set_max_packet_size(port);
1715 	if (read_latency_timer(port) < 0)
1716 		priv->latency = 16;
1717 	write_latency_timer(port);
1718 	create_sysfs_attrs(port);
1719 	return 0;
1720 }
1721 
1722 /* Setup for the USB-UIRT device, which requires hardwired
1723  * baudrate (38400 gets mapped to 312500) */
1724 /* Called from usbserial:serial_probe */
1725 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1726 {
1727 	priv->flags |= ASYNC_SPD_CUST;
1728 	priv->custom_divisor = 77;
1729 	priv->force_baud = 38400;
1730 }
1731 
1732 /* Setup for the HE-TIRA1 device, which requires hardwired
1733  * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled.  */
1734 
1735 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1736 {
1737 	priv->flags |= ASYNC_SPD_CUST;
1738 	priv->custom_divisor = 240;
1739 	priv->force_baud = 38400;
1740 	priv->force_rtscts = 1;
1741 }
1742 
1743 /*
1744  * Module parameter to control latency timer for NDI FTDI-based USB devices.
1745  * If this value is not set in /etc/modprobe.d/ its value will be set
1746  * to 1ms.
1747  */
1748 static int ndi_latency_timer = 1;
1749 
1750 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1751  * baudrate (19200 gets mapped to 1200000).
1752  *
1753  * Called from usbserial:serial_probe.
1754  */
1755 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1756 {
1757 	struct usb_device *udev = serial->dev;
1758 	int latency = ndi_latency_timer;
1759 
1760 	if (latency == 0)
1761 		latency = 1;
1762 	if (latency > 99)
1763 		latency = 99;
1764 
1765 	dev_dbg(&udev->dev, "%s setting NDI device latency to %d\n", __func__, latency);
1766 	dev_info(&udev->dev, "NDI device with a latency value of %d\n", latency);
1767 
1768 	/* FIXME: errors are not returned */
1769 	usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1770 				FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1771 				FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1772 				latency, 0, NULL, 0, WDR_TIMEOUT);
1773 	return 0;
1774 }
1775 
1776 /*
1777  * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1778  * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1779  * userspace using openocd.
1780  */
1781 static int ftdi_jtag_probe(struct usb_serial *serial)
1782 {
1783 	struct usb_device *udev = serial->dev;
1784 	struct usb_interface *interface = serial->interface;
1785 
1786 	if (interface == udev->actconfig->interface[0]) {
1787 		dev_info(&udev->dev,
1788 			 "Ignoring serial port reserved for JTAG\n");
1789 		return -ENODEV;
1790 	}
1791 
1792 	return 0;
1793 }
1794 
1795 static int ftdi_8u2232c_probe(struct usb_serial *serial)
1796 {
1797 	struct usb_device *udev = serial->dev;
1798 
1799 	if ((udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems")) ||
1800 	    (udev->product && !strcmp(udev->product, "BeagleBone/XDS100V2")))
1801 		return ftdi_jtag_probe(serial);
1802 
1803 	return 0;
1804 }
1805 
1806 /*
1807  * First two ports on JTAG adaptors using an FT4232 such as STMicroelectronics's
1808  * ST Micro Connect Lite are reserved for JTAG or other non-UART interfaces and
1809  * can be accessed from userspace.
1810  * The next two ports are enabled as UARTs by default, where port 2 is
1811  * a conventional RS-232 UART.
1812  */
1813 static int ftdi_stmclite_probe(struct usb_serial *serial)
1814 {
1815 	struct usb_device *udev = serial->dev;
1816 	struct usb_interface *interface = serial->interface;
1817 
1818 	if (interface == udev->actconfig->interface[0] ||
1819 	    interface == udev->actconfig->interface[1]) {
1820 		dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n");
1821 		return -ENODEV;
1822 	}
1823 
1824 	return 0;
1825 }
1826 
1827 /*
1828  * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1829  * We have to correct it if we want to read from it.
1830  */
1831 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1832 {
1833 	struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1834 	struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1835 
1836 	if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1837 		ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1838 		dev_info(&serial->dev->dev,
1839 			 "Fixing invalid wMaxPacketSize on read pipe\n");
1840 	}
1841 
1842 	return 0;
1843 }
1844 
1845 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1846 {
1847 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1848 
1849 	remove_sysfs_attrs(port);
1850 
1851 	kfree(priv);
1852 
1853 	return 0;
1854 }
1855 
1856 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1857 {
1858 	struct usb_device *dev = port->serial->dev;
1859 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1860 
1861 	/* No error checking for this (will get errors later anyway) */
1862 	/* See ftdi_sio.h for description of what is reset */
1863 	usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1864 			FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1865 			FTDI_SIO_RESET_SIO,
1866 			priv->interface, NULL, 0, WDR_TIMEOUT);
1867 
1868 	/* Termios defaults are set by usb_serial_init. We don't change
1869 	   port->tty->termios - this would lose speed settings, etc.
1870 	   This is same behaviour as serial.c/rs_open() - Kuba */
1871 
1872 	/* ftdi_set_termios  will send usb control messages */
1873 	if (tty)
1874 		ftdi_set_termios(tty, port, NULL);
1875 
1876 	return usb_serial_generic_open(tty, port);
1877 }
1878 
1879 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1880 {
1881 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1882 
1883 	/* Disable flow control */
1884 	if (!on) {
1885 		if (usb_control_msg(port->serial->dev,
1886 			    usb_sndctrlpipe(port->serial->dev, 0),
1887 			    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1888 			    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1889 			    0, priv->interface, NULL, 0,
1890 			    WDR_TIMEOUT) < 0) {
1891 			dev_err(&port->dev, "error from flowcontrol urb\n");
1892 		}
1893 	}
1894 	/* drop RTS and DTR */
1895 	if (on)
1896 		set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1897 	else
1898 		clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1899 }
1900 
1901 /* The SIO requires the first byte to have:
1902  *  B0 1
1903  *  B1 0
1904  *  B2..7 length of message excluding byte 0
1905  *
1906  * The new devices do not require this byte
1907  */
1908 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
1909 						void *dest, size_t size)
1910 {
1911 	struct ftdi_private *priv;
1912 	int count;
1913 	unsigned long flags;
1914 
1915 	priv = usb_get_serial_port_data(port);
1916 
1917 	if (priv->chip_type == SIO) {
1918 		unsigned char *buffer = dest;
1919 		int i, len, c;
1920 
1921 		count = 0;
1922 		spin_lock_irqsave(&port->lock, flags);
1923 		for (i = 0; i < size - 1; i += priv->max_packet_size) {
1924 			len = min_t(int, size - i, priv->max_packet_size) - 1;
1925 			c = kfifo_out(&port->write_fifo, &buffer[i + 1], len);
1926 			if (!c)
1927 				break;
1928 			port->icount.tx += c;
1929 			buffer[i] = (c << 2) + 1;
1930 			count += c + 1;
1931 		}
1932 		spin_unlock_irqrestore(&port->lock, flags);
1933 	} else {
1934 		count = kfifo_out_locked(&port->write_fifo, dest, size,
1935 								&port->lock);
1936 		port->icount.tx += count;
1937 	}
1938 
1939 	return count;
1940 }
1941 
1942 #define FTDI_RS_ERR_MASK (FTDI_RS_BI | FTDI_RS_PE | FTDI_RS_FE | FTDI_RS_OE)
1943 
1944 static int ftdi_process_packet(struct usb_serial_port *port,
1945 		struct ftdi_private *priv, char *packet, int len)
1946 {
1947 	int i;
1948 	char status;
1949 	char flag;
1950 	char *ch;
1951 
1952 	if (len < 2) {
1953 		dev_dbg(&port->dev, "malformed packet\n");
1954 		return 0;
1955 	}
1956 
1957 	/* Compare new line status to the old one, signal if different/
1958 	   N.B. packet may be processed more than once, but differences
1959 	   are only processed once.  */
1960 	status = packet[0] & FTDI_STATUS_B0_MASK;
1961 	if (status != priv->prev_status) {
1962 		char diff_status = status ^ priv->prev_status;
1963 
1964 		if (diff_status & FTDI_RS0_CTS)
1965 			port->icount.cts++;
1966 		if (diff_status & FTDI_RS0_DSR)
1967 			port->icount.dsr++;
1968 		if (diff_status & FTDI_RS0_RI)
1969 			port->icount.rng++;
1970 		if (diff_status & FTDI_RS0_RLSD) {
1971 			struct tty_struct *tty;
1972 
1973 			port->icount.dcd++;
1974 			tty = tty_port_tty_get(&port->port);
1975 			if (tty)
1976 				usb_serial_handle_dcd_change(port, tty,
1977 						status & FTDI_RS0_RLSD);
1978 			tty_kref_put(tty);
1979 		}
1980 
1981 		wake_up_interruptible(&port->port.delta_msr_wait);
1982 		priv->prev_status = status;
1983 	}
1984 
1985 	flag = TTY_NORMAL;
1986 	if (packet[1] & FTDI_RS_ERR_MASK) {
1987 		/* Break takes precedence over parity, which takes precedence
1988 		 * over framing errors */
1989 		if (packet[1] & FTDI_RS_BI) {
1990 			flag = TTY_BREAK;
1991 			port->icount.brk++;
1992 			usb_serial_handle_break(port);
1993 		} else if (packet[1] & FTDI_RS_PE) {
1994 			flag = TTY_PARITY;
1995 			port->icount.parity++;
1996 		} else if (packet[1] & FTDI_RS_FE) {
1997 			flag = TTY_FRAME;
1998 			port->icount.frame++;
1999 		}
2000 		/* Overrun is special, not associated with a char */
2001 		if (packet[1] & FTDI_RS_OE) {
2002 			port->icount.overrun++;
2003 			tty_insert_flip_char(&port->port, 0, TTY_OVERRUN);
2004 		}
2005 	}
2006 
2007 	/* save if the transmitter is empty or not */
2008 	if (packet[1] & FTDI_RS_TEMT)
2009 		priv->transmit_empty = 1;
2010 	else
2011 		priv->transmit_empty = 0;
2012 
2013 	len -= 2;
2014 	if (!len)
2015 		return 0;	/* status only */
2016 	port->icount.rx += len;
2017 	ch = packet + 2;
2018 
2019 	if (port->port.console && port->sysrq) {
2020 		for (i = 0; i < len; i++, ch++) {
2021 			if (!usb_serial_handle_sysrq_char(port, *ch))
2022 				tty_insert_flip_char(&port->port, *ch, flag);
2023 		}
2024 	} else {
2025 		tty_insert_flip_string_fixed_flag(&port->port, ch, flag, len);
2026 	}
2027 
2028 	return len;
2029 }
2030 
2031 static void ftdi_process_read_urb(struct urb *urb)
2032 {
2033 	struct usb_serial_port *port = urb->context;
2034 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2035 	char *data = (char *)urb->transfer_buffer;
2036 	int i;
2037 	int len;
2038 	int count = 0;
2039 
2040 	for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2041 		len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2042 		count += ftdi_process_packet(port, priv, &data[i], len);
2043 	}
2044 
2045 	if (count)
2046 		tty_flip_buffer_push(&port->port);
2047 }
2048 
2049 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2050 {
2051 	struct usb_serial_port *port = tty->driver_data;
2052 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2053 	__u16 urb_value;
2054 
2055 	/* break_state = -1 to turn on break, and 0 to turn off break */
2056 	/* see drivers/char/tty_io.c to see it used */
2057 	/* last_set_data_urb_value NEVER has the break bit set in it */
2058 
2059 	if (break_state)
2060 		urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2061 	else
2062 		urb_value = priv->last_set_data_urb_value;
2063 
2064 	if (usb_control_msg(port->serial->dev,
2065 			usb_sndctrlpipe(port->serial->dev, 0),
2066 			FTDI_SIO_SET_DATA_REQUEST,
2067 			FTDI_SIO_SET_DATA_REQUEST_TYPE,
2068 			urb_value , priv->interface,
2069 			NULL, 0, WDR_TIMEOUT) < 0) {
2070 		dev_err(&port->dev, "%s FAILED to enable/disable break state (state was %d)\n",
2071 			__func__, break_state);
2072 	}
2073 
2074 	dev_dbg(&port->dev, "%s break state is %d - urb is %d\n", __func__,
2075 		break_state, urb_value);
2076 
2077 }
2078 
2079 static bool ftdi_tx_empty(struct usb_serial_port *port)
2080 {
2081 	unsigned char buf[2];
2082 	int ret;
2083 
2084 	ret = ftdi_get_modem_status(port, buf);
2085 	if (ret == 2) {
2086 		if (!(buf[1] & FTDI_RS_TEMT))
2087 			return false;
2088 	}
2089 
2090 	return true;
2091 }
2092 
2093 /* old_termios contains the original termios settings and tty->termios contains
2094  * the new setting to be used
2095  * WARNING: set_termios calls this with old_termios in kernel space
2096  */
2097 static void ftdi_set_termios(struct tty_struct *tty,
2098 		struct usb_serial_port *port, struct ktermios *old_termios)
2099 {
2100 	struct usb_device *dev = port->serial->dev;
2101 	struct device *ddev = &port->dev;
2102 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2103 	struct ktermios *termios = &tty->termios;
2104 	unsigned int cflag = termios->c_cflag;
2105 	__u16 urb_value; /* will hold the new flags */
2106 
2107 	/* Added for xon/xoff support */
2108 	unsigned int iflag = termios->c_iflag;
2109 	unsigned char vstop;
2110 	unsigned char vstart;
2111 
2112 	/* Force baud rate if this device requires it, unless it is set to
2113 	   B0. */
2114 	if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2115 		dev_dbg(ddev, "%s: forcing baud rate for this device\n", __func__);
2116 		tty_encode_baud_rate(tty, priv->force_baud,
2117 					priv->force_baud);
2118 	}
2119 
2120 	/* Force RTS-CTS if this device requires it. */
2121 	if (priv->force_rtscts) {
2122 		dev_dbg(ddev, "%s: forcing rtscts for this device\n", __func__);
2123 		termios->c_cflag |= CRTSCTS;
2124 	}
2125 
2126 	/*
2127 	 * All FTDI UART chips are limited to CS7/8. We won't pretend to
2128 	 * support CS5/6 and revert the CSIZE setting instead.
2129 	 */
2130 	if ((C_CSIZE(tty) != CS8) && (C_CSIZE(tty) != CS7)) {
2131 		dev_warn(ddev, "requested CSIZE setting not supported\n");
2132 
2133 		termios->c_cflag &= ~CSIZE;
2134 		if (old_termios)
2135 			termios->c_cflag |= old_termios->c_cflag & CSIZE;
2136 		else
2137 			termios->c_cflag |= CS8;
2138 	}
2139 
2140 	cflag = termios->c_cflag;
2141 
2142 	if (!old_termios)
2143 		goto no_skip;
2144 
2145 	if (old_termios->c_cflag == termios->c_cflag
2146 	    && old_termios->c_ispeed == termios->c_ispeed
2147 	    && old_termios->c_ospeed == termios->c_ospeed)
2148 		goto no_c_cflag_changes;
2149 
2150 	/* NOTE These routines can get interrupted by
2151 	   ftdi_sio_read_bulk_callback  - need to examine what this means -
2152 	   don't see any problems yet */
2153 
2154 	if ((old_termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)) ==
2155 	    (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)))
2156 		goto no_data_parity_stop_changes;
2157 
2158 no_skip:
2159 	/* Set number of data bits, parity, stop bits */
2160 
2161 	urb_value = 0;
2162 	urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2163 		      FTDI_SIO_SET_DATA_STOP_BITS_1);
2164 	if (cflag & PARENB) {
2165 		if (cflag & CMSPAR)
2166 			urb_value |= cflag & PARODD ?
2167 				     FTDI_SIO_SET_DATA_PARITY_MARK :
2168 				     FTDI_SIO_SET_DATA_PARITY_SPACE;
2169 		else
2170 			urb_value |= cflag & PARODD ?
2171 				     FTDI_SIO_SET_DATA_PARITY_ODD :
2172 				     FTDI_SIO_SET_DATA_PARITY_EVEN;
2173 	} else {
2174 		urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2175 	}
2176 	switch (cflag & CSIZE) {
2177 	case CS7:
2178 		urb_value |= 7;
2179 		dev_dbg(ddev, "Setting CS7\n");
2180 		break;
2181 	default:
2182 	case CS8:
2183 		urb_value |= 8;
2184 		dev_dbg(ddev, "Setting CS8\n");
2185 		break;
2186 	}
2187 
2188 	/* This is needed by the break command since it uses the same command
2189 	   - but is or'ed with this value  */
2190 	priv->last_set_data_urb_value = urb_value;
2191 
2192 	if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2193 			    FTDI_SIO_SET_DATA_REQUEST,
2194 			    FTDI_SIO_SET_DATA_REQUEST_TYPE,
2195 			    urb_value , priv->interface,
2196 			    NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
2197 		dev_err(ddev, "%s FAILED to set databits/stopbits/parity\n",
2198 			__func__);
2199 	}
2200 
2201 	/* Now do the baudrate */
2202 no_data_parity_stop_changes:
2203 	if ((cflag & CBAUD) == B0) {
2204 		/* Disable flow control */
2205 		if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2206 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2207 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2208 				    0, priv->interface,
2209 				    NULL, 0, WDR_TIMEOUT) < 0) {
2210 			dev_err(ddev, "%s error from disable flowcontrol urb\n",
2211 				__func__);
2212 		}
2213 		/* Drop RTS and DTR */
2214 		clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2215 	} else {
2216 		/* set the baudrate determined before */
2217 		mutex_lock(&priv->cfg_lock);
2218 		if (change_speed(tty, port))
2219 			dev_err(ddev, "%s urb failed to set baudrate\n", __func__);
2220 		mutex_unlock(&priv->cfg_lock);
2221 		/* Ensure RTS and DTR are raised when baudrate changed from 0 */
2222 		if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
2223 			set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2224 	}
2225 
2226 	/* Set flow control */
2227 	/* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2228 no_c_cflag_changes:
2229 	if (cflag & CRTSCTS) {
2230 		dev_dbg(ddev, "%s Setting to CRTSCTS flow control\n", __func__);
2231 		if (usb_control_msg(dev,
2232 				    usb_sndctrlpipe(dev, 0),
2233 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2234 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2235 				    0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2236 				    NULL, 0, WDR_TIMEOUT) < 0) {
2237 			dev_err(ddev, "urb failed to set to rts/cts flow control\n");
2238 		}
2239 	} else {
2240 		/*
2241 		 * Xon/Xoff code
2242 		 *
2243 		 * Check the IXOFF status in the iflag component of the
2244 		 * termios structure. If IXOFF is not set, the pre-xon/xoff
2245 		 * code is executed.
2246 		 */
2247 		if (iflag & IXOFF) {
2248 			dev_dbg(ddev, "%s  request to enable xonxoff iflag=%04x\n",
2249 				__func__, iflag);
2250 			/* Try to enable the XON/XOFF on the ftdi_sio
2251 			 * Set the vstart and vstop -- could have been done up
2252 			 * above where a lot of other dereferencing is done but
2253 			 * that would be very inefficient as vstart and vstop
2254 			 * are not always needed.
2255 			 */
2256 			vstart = termios->c_cc[VSTART];
2257 			vstop = termios->c_cc[VSTOP];
2258 			urb_value = (vstop << 8) | (vstart);
2259 
2260 			if (usb_control_msg(dev,
2261 					    usb_sndctrlpipe(dev, 0),
2262 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2263 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2264 					    urb_value , (FTDI_SIO_XON_XOFF_HS
2265 							 | priv->interface),
2266 					    NULL, 0, WDR_TIMEOUT) < 0) {
2267 				dev_err(&port->dev, "urb failed to set to "
2268 					"xon/xoff flow control\n");
2269 			}
2270 		} else {
2271 			/* else clause to only run if cflag ! CRTSCTS and iflag
2272 			 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2273 			 * stack - not by device */
2274 			dev_dbg(ddev, "%s Turning off hardware flow control\n", __func__);
2275 			if (usb_control_msg(dev,
2276 					    usb_sndctrlpipe(dev, 0),
2277 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2278 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2279 					    0, priv->interface,
2280 					    NULL, 0, WDR_TIMEOUT) < 0) {
2281 				dev_err(ddev, "urb failed to clear flow control\n");
2282 			}
2283 		}
2284 	}
2285 }
2286 
2287 /*
2288  * Get modem-control status.
2289  *
2290  * Returns the number of status bytes retrieved (device dependant), or
2291  * negative error code.
2292  */
2293 static int ftdi_get_modem_status(struct usb_serial_port *port,
2294 						unsigned char status[2])
2295 {
2296 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2297 	unsigned char *buf;
2298 	int len;
2299 	int ret;
2300 
2301 	buf = kmalloc(2, GFP_KERNEL);
2302 	if (!buf)
2303 		return -ENOMEM;
2304 	/*
2305 	 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2306 	 * the same format as the data returned from the in point.
2307 	 */
2308 	switch (priv->chip_type) {
2309 	case SIO:
2310 		len = 1;
2311 		break;
2312 	case FT8U232AM:
2313 	case FT232BM:
2314 	case FT2232C:
2315 	case FT232RL:
2316 	case FT2232H:
2317 	case FT4232H:
2318 	case FT232H:
2319 	case FTX:
2320 		len = 2;
2321 		break;
2322 	default:
2323 		ret = -EFAULT;
2324 		goto out;
2325 	}
2326 
2327 	ret = usb_control_msg(port->serial->dev,
2328 			usb_rcvctrlpipe(port->serial->dev, 0),
2329 			FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2330 			FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2331 			0, priv->interface,
2332 			buf, len, WDR_TIMEOUT);
2333 	if (ret < 0) {
2334 		dev_err(&port->dev, "failed to get modem status: %d\n", ret);
2335 		ret = usb_translate_errors(ret);
2336 		goto out;
2337 	}
2338 
2339 	status[0] = buf[0];
2340 	if (ret > 1)
2341 		status[1] = buf[1];
2342 	else
2343 		status[1] = 0;
2344 
2345 	dev_dbg(&port->dev, "%s - 0x%02x%02x\n", __func__, status[0],
2346 								status[1]);
2347 out:
2348 	kfree(buf);
2349 
2350 	return ret;
2351 }
2352 
2353 static int ftdi_tiocmget(struct tty_struct *tty)
2354 {
2355 	struct usb_serial_port *port = tty->driver_data;
2356 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2357 	unsigned char buf[2];
2358 	int ret;
2359 
2360 	ret = ftdi_get_modem_status(port, buf);
2361 	if (ret < 0)
2362 		return ret;
2363 
2364 	ret =	(buf[0] & FTDI_SIO_DSR_MASK  ? TIOCM_DSR : 0) |
2365 		(buf[0] & FTDI_SIO_CTS_MASK  ? TIOCM_CTS : 0) |
2366 		(buf[0] & FTDI_SIO_RI_MASK   ? TIOCM_RI  : 0) |
2367 		(buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD  : 0) |
2368 		priv->last_dtr_rts;
2369 
2370 	return ret;
2371 }
2372 
2373 static int ftdi_tiocmset(struct tty_struct *tty,
2374 			unsigned int set, unsigned int clear)
2375 {
2376 	struct usb_serial_port *port = tty->driver_data;
2377 
2378 	return update_mctrl(port, set, clear);
2379 }
2380 
2381 static int ftdi_ioctl(struct tty_struct *tty,
2382 					unsigned int cmd, unsigned long arg)
2383 {
2384 	struct usb_serial_port *port = tty->driver_data;
2385 
2386 	dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
2387 
2388 	/* Based on code from acm.c and others */
2389 	switch (cmd) {
2390 
2391 	case TIOCGSERIAL: /* gets serial port data */
2392 		return get_serial_info(port,
2393 					(struct serial_struct __user *) arg);
2394 
2395 	case TIOCSSERIAL: /* sets serial port data */
2396 		return set_serial_info(tty, port,
2397 					(struct serial_struct __user *) arg);
2398 	case TIOCSERGETLSR:
2399 		return get_lsr_info(port, (struct serial_struct __user *)arg);
2400 		break;
2401 	default:
2402 		break;
2403 	}
2404 	/* This is not necessarily an error - turns out the higher layers
2405 	 * will do some ioctls themselves (see comment above)
2406 	 */
2407 	dev_dbg(&port->dev, "%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h\n",
2408 		__func__, cmd);
2409 	return -ENOIOCTLCMD;
2410 }
2411 
2412 module_usb_serial_driver(serial_drivers, id_table_combined);
2413 
2414 MODULE_AUTHOR(DRIVER_AUTHOR);
2415 MODULE_DESCRIPTION(DRIVER_DESC);
2416 MODULE_LICENSE("GPL");
2417 
2418 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2419 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
2420