xref: /openbmc/linux/drivers/usb/serial/ftdi_sio.c (revision afc98d90)
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/slab.h>
37 #include <linux/tty.h>
38 #include <linux/tty_driver.h>
39 #include <linux/tty_flip.h>
40 #include <linux/module.h>
41 #include <linux/spinlock.h>
42 #include <linux/mutex.h>
43 #include <linux/uaccess.h>
44 #include <linux/usb.h>
45 #include <linux/serial.h>
46 #include <linux/usb/serial.h>
47 #include "ftdi_sio.h"
48 #include "ftdi_sio_ids.h"
49 
50 #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>"
51 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
52 
53 
54 struct ftdi_private {
55 	enum ftdi_chip_type chip_type;
56 				/* type of device, either SIO or FT8U232AM */
57 	int baud_base;		/* baud base clock for divisor setting */
58 	int custom_divisor;	/* custom_divisor kludge, this is for
59 				   baud_base (different from what goes to the
60 				   chip!) */
61 	__u16 last_set_data_urb_value ;
62 				/* the last data state set - needed for doing
63 				 * a break
64 				 */
65 	int flags;		/* some ASYNC_xxxx flags are supported */
66 	unsigned long last_dtr_rts;	/* saved modem control outputs */
67 	char prev_status;        /* Used for TIOCMIWAIT */
68 	char transmit_empty;	/* If transmitter is empty or not */
69 	__u16 interface;	/* FT2232C, FT2232H or FT4232H port interface
70 				   (0 for FT232/245) */
71 
72 	speed_t force_baud;	/* if non-zero, force the baud rate to
73 				   this value */
74 	int force_rtscts;	/* if non-zero, force RTS-CTS to always
75 				   be enabled */
76 
77 	unsigned int latency;		/* latency setting in use */
78 	unsigned short max_packet_size;
79 	struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() and change_speed() */
80 };
81 
82 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
83 struct ftdi_sio_quirk {
84 	int (*probe)(struct usb_serial *);
85 	/* Special settings for probed ports. */
86 	void (*port_probe)(struct ftdi_private *);
87 };
88 
89 static int   ftdi_jtag_probe(struct usb_serial *serial);
90 static int   ftdi_mtxorb_hack_setup(struct usb_serial *serial);
91 static int   ftdi_NDI_device_setup(struct usb_serial *serial);
92 static int   ftdi_stmclite_probe(struct usb_serial *serial);
93 static int   ftdi_8u2232c_probe(struct usb_serial *serial);
94 static void  ftdi_USB_UIRT_setup(struct ftdi_private *priv);
95 static void  ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
96 
97 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
98 	.probe	= ftdi_jtag_probe,
99 };
100 
101 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
102 	.probe  = ftdi_mtxorb_hack_setup,
103 };
104 
105 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
106 	.probe	= ftdi_NDI_device_setup,
107 };
108 
109 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
110 	.port_probe = ftdi_USB_UIRT_setup,
111 };
112 
113 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
114 	.port_probe = ftdi_HE_TIRA1_setup,
115 };
116 
117 static struct ftdi_sio_quirk ftdi_stmclite_quirk = {
118 	.probe	= ftdi_stmclite_probe,
119 };
120 
121 static struct ftdi_sio_quirk ftdi_8u2232c_quirk = {
122 	.probe	= ftdi_8u2232c_probe,
123 };
124 
125 /*
126  * The 8U232AM has the same API as the sio except for:
127  * - it can support MUCH higher baudrates; up to:
128  *   o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
129  *   o 230400 at 12MHz
130  *   so .. 8U232AM's baudrate setting codes are different
131  * - it has a two byte status code.
132  * - it returns characters every 16ms (the FTDI does it every 40ms)
133  *
134  * the bcdDevice value is used to differentiate FT232BM and FT245BM from
135  * the earlier FT8U232AM and FT8U232BM.  For now, include all known VID/PID
136  * combinations in both tables.
137  * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
138  * but I don't know if those ever went into mass production. [Ian Abbott]
139  */
140 
141 
142 
143 /*
144  * Device ID not listed? Test it using
145  * /sys/bus/usb-serial/drivers/ftdi_sio/new_id and send a patch or report.
146  */
147 static const struct usb_device_id id_table_combined[] = {
148 	{ USB_DEVICE(FTDI_VID, FTDI_ZEITCONTROL_TAGTRACE_MIFARE_PID) },
149 	{ USB_DEVICE(FTDI_VID, FTDI_CTI_MINI_PID) },
150 	{ USB_DEVICE(FTDI_VID, FTDI_CTI_NANO_PID) },
151 	{ USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
152 	{ USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
153 	{ USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
154 	{ USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
155 	{ USB_DEVICE(FTDI_VID, FTDI_EV3CON_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_TAGSYS_LP101_PID) },
196 	{ USB_DEVICE(FTDI_VID, FTDI_TAGSYS_P200X_PID) },
197 	{ USB_DEVICE(FTDI_VID, FTDI_LENZ_LIUSB_PID) },
198 	{ USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
199 	{ USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
200 	{ USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
201 	{ USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
202 	{ USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
203 	{ USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
204 	{ USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
205 	{ USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
206 	{ USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
207 	{ USB_DEVICE(FTDI_VID, FTDI_URBAN_0_PID) },
208 	{ USB_DEVICE(FTDI_VID, FTDI_URBAN_1_PID) },
209 	{ USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
210 	{ USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
211 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
212 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
213 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
214 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
215 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
216 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
217 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
218 	{ USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
219 	{ USB_DEVICE(FTDI_VID, FTDI_VARDAAN_PID) },
220 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
221 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
222 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
223 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
224 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
225 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
226 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
227 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
228 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
229 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
230 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
231 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
232 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
233 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
234 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
235 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
236 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
237 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
238 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
239 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
240 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
241 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
242 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
243 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
244 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
245 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
246 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
247 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
248 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
249 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
250 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
251 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
252 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
253 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
254 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
255 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
256 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
257 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
258 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
259 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
260 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
261 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
262 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
263 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
264 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
265 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
266 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
267 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
268 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
269 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
270 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
271 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
272 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
273 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
274 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
275 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
276 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
277 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
278 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
279 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
280 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
281 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
282 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
283 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
284 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
285 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
286 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
287 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
288 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
289 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
290 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
291 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
292 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
293 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
294 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
295 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
296 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
297 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
298 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
299 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
300 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
301 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
302 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
303 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
304 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
305 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
306 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
307 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
308 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
309 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
310 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
311 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
312 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
313 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
314 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
315 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
316 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
317 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
318 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
319 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
320 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
321 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
322 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
323 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
324 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
325 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
326 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
327 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
328 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
329 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
330 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
331 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
332 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
333 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
334 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
335 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
336 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
337 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
338 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
339 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
340 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
341 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
342 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
343 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
344 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
345 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
346 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
347 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
348 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
349 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
350 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
351 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
352 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
353 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
354 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
355 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
356 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
357 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
358 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
359 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
360 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
361 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
362 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
363 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
364 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
365 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
366 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
367 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
368 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
369 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
370 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
371 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
372 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
373 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
374 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
375 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
376 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
377 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
378 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
379 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
380 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
381 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
382 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
383 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
384 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
385 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
386 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
387 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
388 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
389 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
390 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
391 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
392 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
393 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
394 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
395 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
396 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
397 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
398 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
399 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
400 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
401 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
402 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
403 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
404 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
405 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
406 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
407 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
408 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
409 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
410 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
411 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
412 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
413 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
414 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
415 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
416 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
417 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
418 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
419 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
420 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
421 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
422 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
423 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
424 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
425 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
426 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
427 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
428 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
429 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
430 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
431 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
432 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
433 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
434 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
435 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
436 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
437 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
438 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
439 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
440 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
441 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
442 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
443 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
444 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
445 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
446 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
447 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
448 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
449 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
450 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
451 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
452 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
453 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
454 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
455 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
456 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
457 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
458 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
459 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
460 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
461 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
462 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
463 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
464 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
465 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
466 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
467 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
468 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
469 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
470 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
471 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
472 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
473 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
474 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
475 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
476 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
477 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
478 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
479 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
480 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
481 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
482 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
483 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
484 	{ USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
485 	{ USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
486 	{ USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
487 	{ USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
488 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
489 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
490 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
491 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
492 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
493 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
494 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
495 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
496 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
497 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
498 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
499 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
500 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
501 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
502 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
503 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
504 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
505 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
506 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
507 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
508 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
509 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
510 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
511 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
512 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
513 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
514 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
515 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
516 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
517 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
518 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
519 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
520 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
521 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
522 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
523 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
524 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
525 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
526 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
527 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
528 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
529 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
530 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
531 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
532 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
533 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
534 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
535 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_1_PID) },
536 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_2_PID) },
537 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_3_PID) },
538 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_4_PID) },
539 	{ USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
540 	{ USB_DEVICE(OCT_VID, OCT_US101_PID) },
541 	{ USB_DEVICE(OCT_VID, OCT_DK201_PID) },
542 	{ USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
543 		.driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
544 	{ USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
545 		.driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
546 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
547 	{ USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
548 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
549 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
550 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
551 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
552 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
553 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
554 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
555 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
556 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
557 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
558 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
559 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
560 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
561 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
562 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
563 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
564 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
565 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
566 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
567 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
568 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
569 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
570 	{ USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
571 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
572 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
573 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
574 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
575 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
576 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
577 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
578 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
579 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
580 	{ USB_DEVICE(FTDI_VID, FTDI_TAVIR_STK500_PID) },
581 	{ USB_DEVICE(FTDI_VID, FTDI_TIAO_UMPA_PID),
582 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
583 	/*
584 	 * ELV devices:
585 	 */
586 	{ USB_DEVICE(FTDI_ELV_VID, FTDI_ELV_WS300_PID) },
587 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
588 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
589 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
590 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
591 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
592 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
593 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
594 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
595 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
596 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
597 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
598 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
599 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
600 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
601 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
602 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
603 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
604 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
605 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
606 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
607 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
608 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
609 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
610 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
611 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
612 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
613 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
614 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
615 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
616 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
617 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
618 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
619 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
620 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
621 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
622 	{ USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
623 	{ USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
624 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
625 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
626 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
627 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
628 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
629 	{ USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
630 	{ USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
631 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
632 	{ USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
633 	{ USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
634 	{ USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
635 	{ USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
636 	{ USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
637 	{ USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
638 	{ USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
639 	{ USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
640 	{ USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
641 	{ USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
642 	{ USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) },
643 	{ USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
644 	{ USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) },
645 	{ USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
646 	{ USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
647 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
648 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
649 	{ USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
650 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
651 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
652 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
653 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
654 	{ USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
655 	{ USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
656 	{ USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
657 	{ USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
658 	{ USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
659 	{ USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
660 	{ USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
661 	{ USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
662 	{ USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
663 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
664 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
665 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_3_PID) },
666 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
667 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
668 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
669 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
670 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
671 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
672 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
673 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
674 	{ USB_DEVICE(FTDI_VID, FTDI_OMNI1509) },
675 	{ USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
676 	{ USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
677 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
678 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
679 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
680 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
681 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
682 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
683 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
684 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
685 	{ USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
686 	{ USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
687 	{ USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
688 	{ USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
689 	{ USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
690 	{ USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
691 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
692 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
693 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
694 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
695 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
696 	{ USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
697 	{ USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
698 	{ USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
699 	{ USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
700 	{ USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
701 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
702 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
703 	{ USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
704 	{ USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
705 	{ USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
706 	{ USB_DEVICE(FTDI_VID, FTDI_NZR_SEM_USB_PID) },
707 	{ USB_DEVICE(ICOM_VID, ICOM_ID_1_PID) },
708 	{ USB_DEVICE(ICOM_VID, ICOM_OPC_U_UC_PID) },
709 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C1_PID) },
710 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C2_PID) },
711 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2D_PID) },
712 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2VT_PID) },
713 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2VR_PID) },
714 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVT_PID) },
715 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVR_PID) },
716 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVT_PID) },
717 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVR_PID) },
718 	{ USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
719 	{ USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
720 	{ USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
721 	{ USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
722 	{ USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
723 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
724 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
725 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
726 	{ USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
727 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
728 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
729 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
730 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
731 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
732 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
733 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
734 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
735 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
736 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
737 	{ USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
738 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S03_PID) },
739 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_59_PID) },
740 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57A_PID) },
741 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57B_PID) },
742 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29A_PID) },
743 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29B_PID) },
744 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29F_PID) },
745 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62B_PID) },
746 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S01_PID) },
747 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63_PID) },
748 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29C_PID) },
749 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_81B_PID) },
750 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_82B_PID) },
751 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5D_PID) },
752 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K4Y_PID) },
753 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5G_PID) },
754 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S05_PID) },
755 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_60_PID) },
756 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_61_PID) },
757 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62_PID) },
758 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63B_PID) },
759 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_64_PID) },
760 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_65_PID) },
761 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92_PID) },
762 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92D_PID) },
763 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_W5R_PID) },
764 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_A5R_PID) },
765 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_PW1_PID) },
766 	{ USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
767 	{ USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
768 	{ USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
769 	{ USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
770 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
771 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) },
772 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
773 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
774 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID),
775 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
776 	{ USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
777 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
778 	{ USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
779 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
780 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
781 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
782 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
783 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
784 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_ICDI_BOARD_PID),
785 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
786 	{ USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
787 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
788 	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
789 	{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
790 
791 	/* Papouch devices based on FTDI chip */
792 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_PID) },
793 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_PID) },
794 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_PID) },
795 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_2_PID) },
796 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_2_PID) },
797 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_2_PID) },
798 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485S_PID) },
799 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485C_PID) },
800 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_LEC_PID) },
801 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB232_PID) },
802 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
803 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_IRAMP_PID) },
804 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK5_PID) },
805 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO8x8_PID) },
806 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
807 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x2_PID) },
808 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO10x1_PID) },
809 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO30x3_PID) },
810 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO60x3_PID) },
811 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x16_PID) },
812 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO3x32_PID) },
813 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK6_PID) },
814 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_UPSUSB_PID) },
815 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_MU_PID) },
816 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SIMUKEY_PID) },
817 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
818 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMUX_PID) },
819 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMSR_PID) },
820 
821 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
822 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
823 	{ USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
824 	{ USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
825 	{ USB_DEVICE(ATMEL_VID, STK541_PID) },
826 	{ USB_DEVICE(DE_VID, STB_PID) },
827 	{ USB_DEVICE(DE_VID, WHT_PID) },
828 	{ USB_DEVICE(ADI_VID, ADI_GNICE_PID),
829 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
830 	{ USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
831 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
832 	{ USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID,
833 					USB_CLASS_VENDOR_SPEC,
834 					USB_SUBCLASS_VENDOR_SPEC, 0x00) },
835 	{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
836 	{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
837 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
838 	{ USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
839 	{ USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
840 	{ USB_DEVICE(FTDI_VID, PI_C865_PID) },
841 	{ USB_DEVICE(FTDI_VID, PI_C857_PID) },
842 	{ USB_DEVICE(PI_VID, PI_C866_PID) },
843 	{ USB_DEVICE(PI_VID, PI_C663_PID) },
844 	{ USB_DEVICE(PI_VID, PI_C725_PID) },
845 	{ USB_DEVICE(PI_VID, PI_E517_PID) },
846 	{ USB_DEVICE(PI_VID, PI_C863_PID) },
847 	{ USB_DEVICE(PI_VID, PI_E861_PID) },
848 	{ USB_DEVICE(PI_VID, PI_C867_PID) },
849 	{ USB_DEVICE(PI_VID, PI_E609_PID) },
850 	{ USB_DEVICE(PI_VID, PI_E709_PID) },
851 	{ USB_DEVICE(PI_VID, PI_100F_PID) },
852 	{ USB_DEVICE(PI_VID, PI_1011_PID) },
853 	{ USB_DEVICE(PI_VID, PI_1012_PID) },
854 	{ USB_DEVICE(PI_VID, PI_1013_PID) },
855 	{ USB_DEVICE(PI_VID, PI_1014_PID) },
856 	{ USB_DEVICE(PI_VID, PI_1015_PID) },
857 	{ USB_DEVICE(PI_VID, PI_1016_PID) },
858 	{ USB_DEVICE(KONDO_VID, KONDO_USB_SERIAL_PID) },
859 	{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
860 	{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
861 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
862 	{ USB_DEVICE(FTDI_VID, TI_XDS100V2_PID),
863 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
864 	{ USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
865 	{ USB_DEVICE(FTDI_VID, HAMEG_HO720_PID) },
866 	{ USB_DEVICE(FTDI_VID, HAMEG_HO730_PID) },
867 	{ USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
868 	{ USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
869 	{ USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
870 	{ USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
871 	{ USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
872 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_ST_PID),
873 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
874 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SLITE_PID),
875 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
876 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH2_PID),
877 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
878 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH4_PID),
879 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
880 	{ USB_DEVICE(FTDI_VID, SEGWAY_RMP200_PID) },
881 	{ USB_DEVICE(FTDI_VID, ACCESIO_COM4SM_PID) },
882 	{ USB_DEVICE(IONICS_VID, IONICS_PLUGCOMPUTER_PID),
883 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
884 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_24_MASTER_WING_PID) },
885 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_PC_WING_PID) },
886 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_USB_DMX_PID) },
887 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MIDI_TIMECODE_PID) },
888 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MINI_WING_PID) },
889 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MAXI_WING_PID) },
890 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MEDIA_WING_PID) },
891 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_WING_PID) },
892 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LOGBOOKML_PID) },
893 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) },
894 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) },
895 	{ USB_DEVICE(FTDI_VID, FTDI_CINTERION_MC55I_PID) },
896 	{ USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
897 	{ USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
898 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
899 	{ USB_DEVICE(ST_VID, ST_STMCLT_2232_PID),
900 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
901 	{ USB_DEVICE(ST_VID, ST_STMCLT_4232_PID),
902 		.driver_info = (kernel_ulong_t)&ftdi_stmclite_quirk },
903 	{ USB_DEVICE(FTDI_VID, FTDI_RF_R106) },
904 	{ USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID),
905 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
906 	{ USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) },
907 	/* Crucible Devices */
908 	{ USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) },
909 	{ USB_DEVICE(FTDI_VID, FTDI_Z3X_PID) },
910 	{ }					/* Terminating entry */
911 };
912 
913 MODULE_DEVICE_TABLE(usb, id_table_combined);
914 
915 static const char *ftdi_chip_name[] = {
916 	[SIO] = "SIO",	/* the serial part of FT8U100AX */
917 	[FT8U232AM] = "FT8U232AM",
918 	[FT232BM] = "FT232BM",
919 	[FT2232C] = "FT2232C",
920 	[FT232RL] = "FT232RL",
921 	[FT2232H] = "FT2232H",
922 	[FT4232H] = "FT4232H",
923 	[FT232H]  = "FT232H",
924 	[FTX]     = "FT-X"
925 };
926 
927 
928 /* Used for TIOCMIWAIT */
929 #define FTDI_STATUS_B0_MASK	(FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
930 #define FTDI_STATUS_B1_MASK	(FTDI_RS_BI)
931 /* End TIOCMIWAIT */
932 
933 /* function prototypes for a FTDI serial converter */
934 static int  ftdi_sio_probe(struct usb_serial *serial,
935 					const struct usb_device_id *id);
936 static int  ftdi_sio_port_probe(struct usb_serial_port *port);
937 static int  ftdi_sio_port_remove(struct usb_serial_port *port);
938 static int  ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
939 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
940 static void ftdi_process_read_urb(struct urb *urb);
941 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
942 						void *dest, size_t size);
943 static void ftdi_set_termios(struct tty_struct *tty,
944 			struct usb_serial_port *port, struct ktermios *old);
945 static int  ftdi_tiocmget(struct tty_struct *tty);
946 static int  ftdi_tiocmset(struct tty_struct *tty,
947 			unsigned int set, unsigned int clear);
948 static int  ftdi_ioctl(struct tty_struct *tty,
949 			unsigned int cmd, unsigned long arg);
950 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
951 static bool ftdi_tx_empty(struct usb_serial_port *port);
952 static int ftdi_get_modem_status(struct usb_serial_port *port,
953 						unsigned char status[2]);
954 
955 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
956 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
957 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
958 static __u32 ftdi_232bm_baud_to_divisor(int baud);
959 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
960 static __u32 ftdi_2232h_baud_to_divisor(int baud);
961 
962 static struct usb_serial_driver ftdi_sio_device = {
963 	.driver = {
964 		.owner =	THIS_MODULE,
965 		.name =		"ftdi_sio",
966 	},
967 	.description =		"FTDI USB Serial Device",
968 	.id_table =		id_table_combined,
969 	.num_ports =		1,
970 	.bulk_in_size =		512,
971 	.bulk_out_size =	256,
972 	.probe =		ftdi_sio_probe,
973 	.port_probe =		ftdi_sio_port_probe,
974 	.port_remove =		ftdi_sio_port_remove,
975 	.open =			ftdi_open,
976 	.dtr_rts =		ftdi_dtr_rts,
977 	.throttle =		usb_serial_generic_throttle,
978 	.unthrottle =		usb_serial_generic_unthrottle,
979 	.process_read_urb =	ftdi_process_read_urb,
980 	.prepare_write_buffer =	ftdi_prepare_write_buffer,
981 	.tiocmget =		ftdi_tiocmget,
982 	.tiocmset =		ftdi_tiocmset,
983 	.tiocmiwait =		usb_serial_generic_tiocmiwait,
984 	.get_icount =           usb_serial_generic_get_icount,
985 	.ioctl =		ftdi_ioctl,
986 	.set_termios =		ftdi_set_termios,
987 	.break_ctl =		ftdi_break_ctl,
988 	.tx_empty =		ftdi_tx_empty,
989 };
990 
991 static struct usb_serial_driver * const serial_drivers[] = {
992 	&ftdi_sio_device, NULL
993 };
994 
995 
996 #define WDR_TIMEOUT 5000 /* default urb timeout */
997 #define WDR_SHORT_TIMEOUT 1000	/* shorter urb timeout */
998 
999 /*
1000  * ***************************************************************************
1001  * Utility functions
1002  * ***************************************************************************
1003  */
1004 
1005 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
1006 {
1007 	unsigned short int divisor;
1008 	/* divisor shifted 3 bits to the left */
1009 	int divisor3 = base / 2 / baud;
1010 	if ((divisor3 & 0x7) == 7)
1011 		divisor3++; /* round x.7/8 up to x+1 */
1012 	divisor = divisor3 >> 3;
1013 	divisor3 &= 0x7;
1014 	if (divisor3 == 1)
1015 		divisor |= 0xc000;
1016 	else if (divisor3 >= 4)
1017 		divisor |= 0x4000;
1018 	else if (divisor3 != 0)
1019 		divisor |= 0x8000;
1020 	else if (divisor == 1)
1021 		divisor = 0;	/* special case for maximum baud rate */
1022 	return divisor;
1023 }
1024 
1025 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
1026 {
1027 	 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1028 }
1029 
1030 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
1031 {
1032 	static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
1033 	__u32 divisor;
1034 	/* divisor shifted 3 bits to the left */
1035 	int divisor3 = base / 2 / baud;
1036 	divisor = divisor3 >> 3;
1037 	divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
1038 	/* Deal with special cases for highest baud rates. */
1039 	if (divisor == 1)
1040 		divisor = 0;
1041 	else if (divisor == 0x4001)
1042 		divisor = 1;
1043 	return divisor;
1044 }
1045 
1046 static __u32 ftdi_232bm_baud_to_divisor(int baud)
1047 {
1048 	 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1049 }
1050 
1051 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
1052 {
1053 	static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
1054 	__u32 divisor;
1055 	int divisor3;
1056 
1057 	/* hi-speed baud rate is 10-bit sampling instead of 16-bit */
1058 	divisor3 = base * 8 / (baud * 10);
1059 
1060 	divisor = divisor3 >> 3;
1061 	divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
1062 	/* Deal with special cases for highest baud rates. */
1063 	if (divisor == 1)
1064 		divisor = 0;
1065 	else if (divisor == 0x4001)
1066 		divisor = 1;
1067 	/*
1068 	 * Set this bit to turn off a divide by 2.5 on baud rate generator
1069 	 * This enables baud rates up to 12Mbaud but cannot reach below 1200
1070 	 * baud with this bit set
1071 	 */
1072 	divisor |= 0x00020000;
1073 	return divisor;
1074 }
1075 
1076 static __u32 ftdi_2232h_baud_to_divisor(int baud)
1077 {
1078 	 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
1079 }
1080 
1081 #define set_mctrl(port, set)		update_mctrl((port), (set), 0)
1082 #define clear_mctrl(port, clear)	update_mctrl((port), 0, (clear))
1083 
1084 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
1085 							unsigned int clear)
1086 {
1087 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1088 	struct device *dev = &port->dev;
1089 	unsigned urb_value;
1090 	int rv;
1091 
1092 	if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
1093 		dev_dbg(dev, "%s - DTR|RTS not being set|cleared\n", __func__);
1094 		return 0;	/* no change */
1095 	}
1096 
1097 	clear &= ~set;	/* 'set' takes precedence over 'clear' */
1098 	urb_value = 0;
1099 	if (clear & TIOCM_DTR)
1100 		urb_value |= FTDI_SIO_SET_DTR_LOW;
1101 	if (clear & TIOCM_RTS)
1102 		urb_value |= FTDI_SIO_SET_RTS_LOW;
1103 	if (set & TIOCM_DTR)
1104 		urb_value |= FTDI_SIO_SET_DTR_HIGH;
1105 	if (set & TIOCM_RTS)
1106 		urb_value |= FTDI_SIO_SET_RTS_HIGH;
1107 	rv = usb_control_msg(port->serial->dev,
1108 			       usb_sndctrlpipe(port->serial->dev, 0),
1109 			       FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1110 			       FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
1111 			       urb_value, priv->interface,
1112 			       NULL, 0, WDR_TIMEOUT);
1113 	if (rv < 0) {
1114 		dev_dbg(dev, "%s Error from MODEM_CTRL urb: DTR %s, RTS %s\n",
1115 			__func__,
1116 			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
1117 			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
1118 		rv = usb_translate_errors(rv);
1119 	} else {
1120 		dev_dbg(dev, "%s - DTR %s, RTS %s\n", __func__,
1121 			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
1122 			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
1123 		/* FIXME: locking on last_dtr_rts */
1124 		priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
1125 	}
1126 	return rv;
1127 }
1128 
1129 
1130 static __u32 get_ftdi_divisor(struct tty_struct *tty,
1131 						struct usb_serial_port *port)
1132 {
1133 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1134 	struct device *dev = &port->dev;
1135 	__u32 div_value = 0;
1136 	int div_okay = 1;
1137 	int baud;
1138 
1139 	/*
1140 	 * The logic involved in setting the baudrate can be cleanly split into
1141 	 * 3 steps.
1142 	 * 1. Standard baud rates are set in tty->termios->c_cflag
1143 	 * 2. If these are not enough, you can set any speed using alt_speed as
1144 	 * follows:
1145 	 *    - set tty->termios->c_cflag speed to B38400
1146 	 *    - set your real speed in tty->alt_speed; it gets ignored when
1147 	 *      alt_speed==0, (or)
1148 	 *    - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1149 	 *	follows:
1150 	 *      flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1151 	 *	this just sets alt_speed to (HI: 57600, VHI: 115200,
1152 	 *	SHI: 230400, WARP: 460800)
1153 	 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1154 	 * 3. You can also set baud rate by setting custom divisor as follows
1155 	 *    - set tty->termios->c_cflag speed to B38400
1156 	 *    - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1157 	 *	follows:
1158 	 *      o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1159 	 *      o custom_divisor set to baud_base / your_new_baudrate
1160 	 * ** Step 3 is done courtesy of code borrowed from serial.c
1161 	 *    I should really spend some time and separate + move this common
1162 	 *    code to serial.c, it is replicated in nearly every serial driver
1163 	 *    you see.
1164 	 */
1165 
1166 	/* 1. Get the baud rate from the tty settings, this observes
1167 	      alt_speed hack */
1168 
1169 	baud = tty_get_baud_rate(tty);
1170 	dev_dbg(dev, "%s - tty_get_baud_rate reports speed %d\n", __func__, baud);
1171 
1172 	/* 2. Observe async-compatible custom_divisor hack, update baudrate
1173 	   if needed */
1174 
1175 	if (baud == 38400 &&
1176 	    ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1177 	     (priv->custom_divisor)) {
1178 		baud = priv->baud_base / priv->custom_divisor;
1179 		dev_dbg(dev, "%s - custom divisor %d sets baud rate to %d\n",
1180 			__func__, priv->custom_divisor, baud);
1181 	}
1182 
1183 	/* 3. Convert baudrate to device-specific divisor */
1184 
1185 	if (!baud)
1186 		baud = 9600;
1187 	switch (priv->chip_type) {
1188 	case SIO: /* SIO chip */
1189 		switch (baud) {
1190 		case 300: div_value = ftdi_sio_b300; break;
1191 		case 600: div_value = ftdi_sio_b600; break;
1192 		case 1200: div_value = ftdi_sio_b1200; break;
1193 		case 2400: div_value = ftdi_sio_b2400; break;
1194 		case 4800: div_value = ftdi_sio_b4800; break;
1195 		case 9600: div_value = ftdi_sio_b9600; break;
1196 		case 19200: div_value = ftdi_sio_b19200; break;
1197 		case 38400: div_value = ftdi_sio_b38400; break;
1198 		case 57600: div_value = ftdi_sio_b57600;  break;
1199 		case 115200: div_value = ftdi_sio_b115200; break;
1200 		} /* baud */
1201 		if (div_value == 0) {
1202 			dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n",
1203 				__func__,  baud);
1204 			div_value = ftdi_sio_b9600;
1205 			baud = 9600;
1206 			div_okay = 0;
1207 		}
1208 		break;
1209 	case FT8U232AM: /* 8U232AM chip */
1210 		if (baud <= 3000000) {
1211 			div_value = ftdi_232am_baud_to_divisor(baud);
1212 		} else {
1213 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1214 			baud = 9600;
1215 			div_value = ftdi_232am_baud_to_divisor(9600);
1216 			div_okay = 0;
1217 		}
1218 		break;
1219 	case FT232BM: /* FT232BM chip */
1220 	case FT2232C: /* FT2232C chip */
1221 	case FT232RL: /* FT232RL chip */
1222 	case FTX:     /* FT-X series */
1223 		if (baud <= 3000000) {
1224 			__u16 product_id = le16_to_cpu(
1225 				port->serial->dev->descriptor.idProduct);
1226 			if (((FTDI_NDI_HUC_PID == product_id) ||
1227 			     (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1228 			     (FTDI_NDI_FUTURE_2_PID == product_id) ||
1229 			     (FTDI_NDI_FUTURE_3_PID == product_id) ||
1230 			     (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1231 			    (baud == 19200)) {
1232 				baud = 1200000;
1233 			}
1234 			div_value = ftdi_232bm_baud_to_divisor(baud);
1235 		} else {
1236 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1237 			div_value = ftdi_232bm_baud_to_divisor(9600);
1238 			div_okay = 0;
1239 			baud = 9600;
1240 		}
1241 		break;
1242 	case FT2232H: /* FT2232H chip */
1243 	case FT4232H: /* FT4232H chip */
1244 	case FT232H:  /* FT232H chip */
1245 		if ((baud <= 12000000) && (baud >= 1200)) {
1246 			div_value = ftdi_2232h_baud_to_divisor(baud);
1247 		} else if (baud < 1200) {
1248 			div_value = ftdi_232bm_baud_to_divisor(baud);
1249 		} else {
1250 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1251 			div_value = ftdi_232bm_baud_to_divisor(9600);
1252 			div_okay = 0;
1253 			baud = 9600;
1254 		}
1255 		break;
1256 	} /* priv->chip_type */
1257 
1258 	if (div_okay) {
1259 		dev_dbg(dev, "%s - Baud rate set to %d (divisor 0x%lX) on chip %s\n",
1260 			__func__, baud, (unsigned long)div_value,
1261 			ftdi_chip_name[priv->chip_type]);
1262 	}
1263 
1264 	tty_encode_baud_rate(tty, baud, baud);
1265 	return div_value;
1266 }
1267 
1268 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1269 {
1270 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1271 	__u16 urb_value;
1272 	__u16 urb_index;
1273 	__u32 urb_index_value;
1274 	int rv;
1275 
1276 	urb_index_value = get_ftdi_divisor(tty, port);
1277 	urb_value = (__u16)urb_index_value;
1278 	urb_index = (__u16)(urb_index_value >> 16);
1279 	if ((priv->chip_type == FT2232C) || (priv->chip_type == FT2232H) ||
1280 		(priv->chip_type == FT4232H) || (priv->chip_type == FT232H)) {
1281 		/* Probably the BM type needs the MSB of the encoded fractional
1282 		 * divider also moved like for the chips above. Any infos? */
1283 		urb_index = (__u16)((urb_index << 8) | priv->interface);
1284 	}
1285 
1286 	rv = usb_control_msg(port->serial->dev,
1287 			    usb_sndctrlpipe(port->serial->dev, 0),
1288 			    FTDI_SIO_SET_BAUDRATE_REQUEST,
1289 			    FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1290 			    urb_value, urb_index,
1291 			    NULL, 0, WDR_SHORT_TIMEOUT);
1292 	return rv;
1293 }
1294 
1295 static int write_latency_timer(struct usb_serial_port *port)
1296 {
1297 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1298 	struct usb_device *udev = port->serial->dev;
1299 	int rv;
1300 	int l = priv->latency;
1301 
1302 	if (priv->flags & ASYNC_LOW_LATENCY)
1303 		l = 1;
1304 
1305 	dev_dbg(&port->dev, "%s: setting latency timer = %i\n", __func__, l);
1306 
1307 	rv = usb_control_msg(udev,
1308 			     usb_sndctrlpipe(udev, 0),
1309 			     FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1310 			     FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1311 			     l, priv->interface,
1312 			     NULL, 0, WDR_TIMEOUT);
1313 	if (rv < 0)
1314 		dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1315 	return rv;
1316 }
1317 
1318 static int read_latency_timer(struct usb_serial_port *port)
1319 {
1320 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1321 	struct usb_device *udev = port->serial->dev;
1322 	unsigned char *buf;
1323 	int rv;
1324 
1325 	buf = kmalloc(1, GFP_KERNEL);
1326 	if (!buf)
1327 		return -ENOMEM;
1328 
1329 	rv = usb_control_msg(udev,
1330 			     usb_rcvctrlpipe(udev, 0),
1331 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1332 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1333 			     0, priv->interface,
1334 			     buf, 1, WDR_TIMEOUT);
1335 	if (rv < 0)
1336 		dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1337 	else
1338 		priv->latency = buf[0];
1339 
1340 	kfree(buf);
1341 
1342 	return rv;
1343 }
1344 
1345 static int get_serial_info(struct usb_serial_port *port,
1346 				struct serial_struct __user *retinfo)
1347 {
1348 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1349 	struct serial_struct tmp;
1350 
1351 	if (!retinfo)
1352 		return -EFAULT;
1353 	memset(&tmp, 0, sizeof(tmp));
1354 	tmp.flags = priv->flags;
1355 	tmp.baud_base = priv->baud_base;
1356 	tmp.custom_divisor = priv->custom_divisor;
1357 	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1358 		return -EFAULT;
1359 	return 0;
1360 }
1361 
1362 static int set_serial_info(struct tty_struct *tty,
1363 	struct usb_serial_port *port, struct serial_struct __user *newinfo)
1364 {
1365 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1366 	struct serial_struct new_serial;
1367 	struct ftdi_private old_priv;
1368 
1369 	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1370 		return -EFAULT;
1371 
1372 	mutex_lock(&priv->cfg_lock);
1373 	old_priv = *priv;
1374 
1375 	/* Do error checking and permission checking */
1376 
1377 	if (!capable(CAP_SYS_ADMIN)) {
1378 		if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1379 		     (priv->flags & ~ASYNC_USR_MASK))) {
1380 			mutex_unlock(&priv->cfg_lock);
1381 			return -EPERM;
1382 		}
1383 		priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1384 			       (new_serial.flags & ASYNC_USR_MASK));
1385 		priv->custom_divisor = new_serial.custom_divisor;
1386 		goto check_and_exit;
1387 	}
1388 
1389 	if (new_serial.baud_base != priv->baud_base) {
1390 		mutex_unlock(&priv->cfg_lock);
1391 		return -EINVAL;
1392 	}
1393 
1394 	/* Make the changes - these are privileged changes! */
1395 
1396 	priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1397 					(new_serial.flags & ASYNC_FLAGS));
1398 	priv->custom_divisor = new_serial.custom_divisor;
1399 
1400 	write_latency_timer(port);
1401 
1402 check_and_exit:
1403 	if ((old_priv.flags & ASYNC_SPD_MASK) !=
1404 	     (priv->flags & ASYNC_SPD_MASK)) {
1405 		if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1406 			tty->alt_speed = 57600;
1407 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1408 			tty->alt_speed = 115200;
1409 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1410 			tty->alt_speed = 230400;
1411 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1412 			tty->alt_speed = 460800;
1413 		else
1414 			tty->alt_speed = 0;
1415 	}
1416 	if (((old_priv.flags & ASYNC_SPD_MASK) !=
1417 	     (priv->flags & ASYNC_SPD_MASK)) ||
1418 	    (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1419 	     (old_priv.custom_divisor != priv->custom_divisor))) {
1420 		change_speed(tty, port);
1421 		mutex_unlock(&priv->cfg_lock);
1422 	}
1423 	else
1424 		mutex_unlock(&priv->cfg_lock);
1425 	return 0;
1426 }
1427 
1428 static int get_lsr_info(struct usb_serial_port *port,
1429 			struct serial_struct __user *retinfo)
1430 {
1431 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1432 	unsigned int result = 0;
1433 
1434 	if (!retinfo)
1435 		return -EFAULT;
1436 
1437 	if (priv->transmit_empty)
1438 		result = TIOCSER_TEMT;
1439 
1440 	if (copy_to_user(retinfo, &result, sizeof(unsigned int)))
1441 		return -EFAULT;
1442 	return 0;
1443 }
1444 
1445 
1446 /* Determine type of FTDI chip based on USB config and descriptor. */
1447 static void ftdi_determine_type(struct usb_serial_port *port)
1448 {
1449 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1450 	struct usb_serial *serial = port->serial;
1451 	struct usb_device *udev = serial->dev;
1452 	unsigned version;
1453 	unsigned interfaces;
1454 
1455 	/* Assume it is not the original SIO device for now. */
1456 	priv->baud_base = 48000000 / 2;
1457 
1458 	version = le16_to_cpu(udev->descriptor.bcdDevice);
1459 	interfaces = udev->actconfig->desc.bNumInterfaces;
1460 	dev_dbg(&port->dev, "%s: bcdDevice = 0x%x, bNumInterfaces = %u\n", __func__,
1461 		version, interfaces);
1462 	if (interfaces > 1) {
1463 		int inter;
1464 
1465 		/* Multiple interfaces.*/
1466 		if (version == 0x0800) {
1467 			priv->chip_type = FT4232H;
1468 			/* Hi-speed - baud clock runs at 120MHz */
1469 			priv->baud_base = 120000000 / 2;
1470 		} else if (version == 0x0700) {
1471 			priv->chip_type = FT2232H;
1472 			/* Hi-speed - baud clock runs at 120MHz */
1473 			priv->baud_base = 120000000 / 2;
1474 		} else
1475 			priv->chip_type = FT2232C;
1476 
1477 		/* Determine interface code. */
1478 		inter = serial->interface->altsetting->desc.bInterfaceNumber;
1479 		if (inter == 0) {
1480 			priv->interface = INTERFACE_A;
1481 		} else  if (inter == 1) {
1482 			priv->interface = INTERFACE_B;
1483 		} else  if (inter == 2) {
1484 			priv->interface = INTERFACE_C;
1485 		} else  if (inter == 3) {
1486 			priv->interface = INTERFACE_D;
1487 		}
1488 		/* BM-type devices have a bug where bcdDevice gets set
1489 		 * to 0x200 when iSerialNumber is 0.  */
1490 		if (version < 0x500) {
1491 			dev_dbg(&port->dev,
1492 				"%s: something fishy - bcdDevice too low for multi-interface device\n",
1493 				__func__);
1494 		}
1495 	} else if (version < 0x200) {
1496 		/* Old device.  Assume it's the original SIO. */
1497 		priv->chip_type = SIO;
1498 		priv->baud_base = 12000000 / 16;
1499 	} else if (version < 0x400) {
1500 		/* Assume it's an FT8U232AM (or FT8U245AM) */
1501 		/* (It might be a BM because of the iSerialNumber bug,
1502 		 * but it will still work as an AM device.) */
1503 		priv->chip_type = FT8U232AM;
1504 	} else if (version < 0x600) {
1505 		/* Assume it's an FT232BM (or FT245BM) */
1506 		priv->chip_type = FT232BM;
1507 	} else if (version < 0x900) {
1508 		/* Assume it's an FT232RL */
1509 		priv->chip_type = FT232RL;
1510 	} else if (version < 0x1000) {
1511 		/* Assume it's an FT232H */
1512 		priv->chip_type = FT232H;
1513 	} else {
1514 		/* Assume it's an FT-X series device */
1515 		priv->chip_type = FTX;
1516 	}
1517 
1518 	dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1519 }
1520 
1521 
1522 /* Determine the maximum packet size for the device.  This depends on the chip
1523  * type and the USB host capabilities.  The value should be obtained from the
1524  * device descriptor as the chip will use the appropriate values for the host.*/
1525 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1526 {
1527 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1528 	struct usb_serial *serial = port->serial;
1529 	struct usb_device *udev = serial->dev;
1530 
1531 	struct usb_interface *interface = serial->interface;
1532 	struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1533 
1534 	unsigned num_endpoints;
1535 	int i;
1536 
1537 	num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1538 	dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1539 
1540 	/* NOTE: some customers have programmed FT232R/FT245R devices
1541 	 * with an endpoint size of 0 - not good.  In this case, we
1542 	 * want to override the endpoint descriptor setting and use a
1543 	 * value of 64 for wMaxPacketSize */
1544 	for (i = 0; i < num_endpoints; i++) {
1545 		dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1546 			interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1547 		ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1548 		if (ep_desc->wMaxPacketSize == 0) {
1549 			ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1550 			dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1551 		}
1552 	}
1553 
1554 	/* set max packet size based on descriptor */
1555 	priv->max_packet_size = usb_endpoint_maxp(ep_desc);
1556 
1557 	dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1558 }
1559 
1560 
1561 /*
1562  * ***************************************************************************
1563  * Sysfs Attribute
1564  * ***************************************************************************
1565  */
1566 
1567 static ssize_t latency_timer_show(struct device *dev,
1568 				  struct device_attribute *attr, char *buf)
1569 {
1570 	struct usb_serial_port *port = to_usb_serial_port(dev);
1571 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1572 	if (priv->flags & ASYNC_LOW_LATENCY)
1573 		return sprintf(buf, "1\n");
1574 	else
1575 		return sprintf(buf, "%i\n", priv->latency);
1576 }
1577 
1578 /* Write a new value of the latency timer, in units of milliseconds. */
1579 static ssize_t latency_timer_store(struct device *dev,
1580 				   struct device_attribute *attr,
1581 				   const char *valbuf, size_t count)
1582 {
1583 	struct usb_serial_port *port = to_usb_serial_port(dev);
1584 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1585 	int v = simple_strtoul(valbuf, NULL, 10);
1586 	int rv;
1587 
1588 	priv->latency = v;
1589 	rv = write_latency_timer(port);
1590 	if (rv < 0)
1591 		return -EIO;
1592 	return count;
1593 }
1594 static DEVICE_ATTR_RW(latency_timer);
1595 
1596 /* Write an event character directly to the FTDI register.  The ASCII
1597    value is in the low 8 bits, with the enable bit in the 9th bit. */
1598 static ssize_t store_event_char(struct device *dev,
1599 	struct device_attribute *attr, const char *valbuf, size_t count)
1600 {
1601 	struct usb_serial_port *port = to_usb_serial_port(dev);
1602 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1603 	struct usb_device *udev = port->serial->dev;
1604 	int v = simple_strtoul(valbuf, NULL, 10);
1605 	int rv;
1606 
1607 	dev_dbg(&port->dev, "%s: setting event char = %i\n", __func__, v);
1608 
1609 	rv = usb_control_msg(udev,
1610 			     usb_sndctrlpipe(udev, 0),
1611 			     FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1612 			     FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1613 			     v, priv->interface,
1614 			     NULL, 0, WDR_TIMEOUT);
1615 	if (rv < 0) {
1616 		dev_dbg(&port->dev, "Unable to write event character: %i\n", rv);
1617 		return -EIO;
1618 	}
1619 
1620 	return count;
1621 }
1622 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1623 
1624 static int create_sysfs_attrs(struct usb_serial_port *port)
1625 {
1626 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1627 	int retval = 0;
1628 
1629 	/* XXX I've no idea if the original SIO supports the event_char
1630 	 * sysfs parameter, so I'm playing it safe.  */
1631 	if (priv->chip_type != SIO) {
1632 		dev_dbg(&port->dev, "sysfs attributes for %s\n", ftdi_chip_name[priv->chip_type]);
1633 		retval = device_create_file(&port->dev, &dev_attr_event_char);
1634 		if ((!retval) &&
1635 		    (priv->chip_type == FT232BM ||
1636 		     priv->chip_type == FT2232C ||
1637 		     priv->chip_type == FT232RL ||
1638 		     priv->chip_type == FT2232H ||
1639 		     priv->chip_type == FT4232H ||
1640 		     priv->chip_type == FT232H ||
1641 		     priv->chip_type == FTX)) {
1642 			retval = device_create_file(&port->dev,
1643 						    &dev_attr_latency_timer);
1644 		}
1645 	}
1646 	return retval;
1647 }
1648 
1649 static void remove_sysfs_attrs(struct usb_serial_port *port)
1650 {
1651 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1652 
1653 	/* XXX see create_sysfs_attrs */
1654 	if (priv->chip_type != SIO) {
1655 		device_remove_file(&port->dev, &dev_attr_event_char);
1656 		if (priv->chip_type == FT232BM ||
1657 		    priv->chip_type == FT2232C ||
1658 		    priv->chip_type == FT232RL ||
1659 		    priv->chip_type == FT2232H ||
1660 		    priv->chip_type == FT4232H ||
1661 		    priv->chip_type == FT232H ||
1662 		    priv->chip_type == FTX) {
1663 			device_remove_file(&port->dev, &dev_attr_latency_timer);
1664 		}
1665 	}
1666 
1667 }
1668 
1669 /*
1670  * ***************************************************************************
1671  * FTDI driver specific functions
1672  * ***************************************************************************
1673  */
1674 
1675 /* Probe function to check for special devices */
1676 static int ftdi_sio_probe(struct usb_serial *serial,
1677 					const struct usb_device_id *id)
1678 {
1679 	struct ftdi_sio_quirk *quirk =
1680 				(struct ftdi_sio_quirk *)id->driver_info;
1681 
1682 	if (quirk && quirk->probe) {
1683 		int ret = quirk->probe(serial);
1684 		if (ret != 0)
1685 			return ret;
1686 	}
1687 
1688 	usb_set_serial_data(serial, (void *)id->driver_info);
1689 
1690 	return 0;
1691 }
1692 
1693 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1694 {
1695 	struct ftdi_private *priv;
1696 	struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1697 
1698 
1699 	priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1700 	if (!priv)
1701 		return -ENOMEM;
1702 
1703 	mutex_init(&priv->cfg_lock);
1704 
1705 	priv->flags = ASYNC_LOW_LATENCY;
1706 
1707 	if (quirk && quirk->port_probe)
1708 		quirk->port_probe(priv);
1709 
1710 	usb_set_serial_port_data(port, priv);
1711 
1712 	ftdi_determine_type(port);
1713 	ftdi_set_max_packet_size(port);
1714 	if (read_latency_timer(port) < 0)
1715 		priv->latency = 16;
1716 	write_latency_timer(port);
1717 	create_sysfs_attrs(port);
1718 	return 0;
1719 }
1720 
1721 /* Setup for the USB-UIRT device, which requires hardwired
1722  * baudrate (38400 gets mapped to 312500) */
1723 /* Called from usbserial:serial_probe */
1724 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1725 {
1726 	priv->flags |= ASYNC_SPD_CUST;
1727 	priv->custom_divisor = 77;
1728 	priv->force_baud = 38400;
1729 }
1730 
1731 /* Setup for the HE-TIRA1 device, which requires hardwired
1732  * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled.  */
1733 
1734 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1735 {
1736 	priv->flags |= ASYNC_SPD_CUST;
1737 	priv->custom_divisor = 240;
1738 	priv->force_baud = 38400;
1739 	priv->force_rtscts = 1;
1740 }
1741 
1742 /*
1743  * Module parameter to control latency timer for NDI FTDI-based USB devices.
1744  * If this value is not set in /etc/modprobe.d/ its value will be set
1745  * to 1ms.
1746  */
1747 static int ndi_latency_timer = 1;
1748 
1749 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1750  * baudrate (19200 gets mapped to 1200000).
1751  *
1752  * Called from usbserial:serial_probe.
1753  */
1754 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1755 {
1756 	struct usb_device *udev = serial->dev;
1757 	int latency = ndi_latency_timer;
1758 
1759 	if (latency == 0)
1760 		latency = 1;
1761 	if (latency > 99)
1762 		latency = 99;
1763 
1764 	dev_dbg(&udev->dev, "%s setting NDI device latency to %d\n", __func__, latency);
1765 	dev_info(&udev->dev, "NDI device with a latency value of %d\n", latency);
1766 
1767 	/* FIXME: errors are not returned */
1768 	usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1769 				FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1770 				FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1771 				latency, 0, NULL, 0, WDR_TIMEOUT);
1772 	return 0;
1773 }
1774 
1775 /*
1776  * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1777  * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1778  * userspace using openocd.
1779  */
1780 static int ftdi_jtag_probe(struct usb_serial *serial)
1781 {
1782 	struct usb_device *udev = serial->dev;
1783 	struct usb_interface *interface = serial->interface;
1784 
1785 	if (interface == udev->actconfig->interface[0]) {
1786 		dev_info(&udev->dev,
1787 			 "Ignoring serial port reserved for JTAG\n");
1788 		return -ENODEV;
1789 	}
1790 
1791 	return 0;
1792 }
1793 
1794 static int ftdi_8u2232c_probe(struct usb_serial *serial)
1795 {
1796 	struct usb_device *udev = serial->dev;
1797 
1798 	if ((udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems")) ||
1799 	    (udev->product && !strcmp(udev->product, "BeagleBone/XDS100V2")))
1800 		return ftdi_jtag_probe(serial);
1801 
1802 	return 0;
1803 }
1804 
1805 /*
1806  * First two ports on JTAG adaptors using an FT4232 such as STMicroelectronics's
1807  * ST Micro Connect Lite are reserved for JTAG or other non-UART interfaces and
1808  * can be accessed from userspace.
1809  * The next two ports are enabled as UARTs by default, where port 2 is
1810  * a conventional RS-232 UART.
1811  */
1812 static int ftdi_stmclite_probe(struct usb_serial *serial)
1813 {
1814 	struct usb_device *udev = serial->dev;
1815 	struct usb_interface *interface = serial->interface;
1816 
1817 	if (interface == udev->actconfig->interface[0] ||
1818 	    interface == udev->actconfig->interface[1]) {
1819 		dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n");
1820 		return -ENODEV;
1821 	}
1822 
1823 	return 0;
1824 }
1825 
1826 /*
1827  * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1828  * We have to correct it if we want to read from it.
1829  */
1830 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1831 {
1832 	struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1833 	struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1834 
1835 	if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1836 		ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1837 		dev_info(&serial->dev->dev,
1838 			 "Fixing invalid wMaxPacketSize on read pipe\n");
1839 	}
1840 
1841 	return 0;
1842 }
1843 
1844 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1845 {
1846 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1847 
1848 	remove_sysfs_attrs(port);
1849 
1850 	kfree(priv);
1851 
1852 	return 0;
1853 }
1854 
1855 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1856 {
1857 	struct usb_device *dev = port->serial->dev;
1858 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1859 
1860 	/* No error checking for this (will get errors later anyway) */
1861 	/* See ftdi_sio.h for description of what is reset */
1862 	usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1863 			FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1864 			FTDI_SIO_RESET_SIO,
1865 			priv->interface, NULL, 0, WDR_TIMEOUT);
1866 
1867 	/* Termios defaults are set by usb_serial_init. We don't change
1868 	   port->tty->termios - this would lose speed settings, etc.
1869 	   This is same behaviour as serial.c/rs_open() - Kuba */
1870 
1871 	/* ftdi_set_termios  will send usb control messages */
1872 	if (tty)
1873 		ftdi_set_termios(tty, port, NULL);
1874 
1875 	return usb_serial_generic_open(tty, port);
1876 }
1877 
1878 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1879 {
1880 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1881 
1882 	/* Disable flow control */
1883 	if (!on) {
1884 		if (usb_control_msg(port->serial->dev,
1885 			    usb_sndctrlpipe(port->serial->dev, 0),
1886 			    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1887 			    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1888 			    0, priv->interface, NULL, 0,
1889 			    WDR_TIMEOUT) < 0) {
1890 			dev_err(&port->dev, "error from flowcontrol urb\n");
1891 		}
1892 	}
1893 	/* drop RTS and DTR */
1894 	if (on)
1895 		set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1896 	else
1897 		clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1898 }
1899 
1900 /* The SIO requires the first byte to have:
1901  *  B0 1
1902  *  B1 0
1903  *  B2..7 length of message excluding byte 0
1904  *
1905  * The new devices do not require this byte
1906  */
1907 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
1908 						void *dest, size_t size)
1909 {
1910 	struct ftdi_private *priv;
1911 	int count;
1912 	unsigned long flags;
1913 
1914 	priv = usb_get_serial_port_data(port);
1915 
1916 	if (priv->chip_type == SIO) {
1917 		unsigned char *buffer = dest;
1918 		int i, len, c;
1919 
1920 		count = 0;
1921 		spin_lock_irqsave(&port->lock, flags);
1922 		for (i = 0; i < size - 1; i += priv->max_packet_size) {
1923 			len = min_t(int, size - i, priv->max_packet_size) - 1;
1924 			c = kfifo_out(&port->write_fifo, &buffer[i + 1], len);
1925 			if (!c)
1926 				break;
1927 			port->icount.tx += c;
1928 			buffer[i] = (c << 2) + 1;
1929 			count += c + 1;
1930 		}
1931 		spin_unlock_irqrestore(&port->lock, flags);
1932 	} else {
1933 		count = kfifo_out_locked(&port->write_fifo, dest, size,
1934 								&port->lock);
1935 		port->icount.tx += count;
1936 	}
1937 
1938 	return count;
1939 }
1940 
1941 #define FTDI_RS_ERR_MASK (FTDI_RS_BI | FTDI_RS_PE | FTDI_RS_FE | FTDI_RS_OE)
1942 
1943 static int ftdi_process_packet(struct usb_serial_port *port,
1944 		struct ftdi_private *priv, char *packet, int len)
1945 {
1946 	int i;
1947 	char status;
1948 	char flag;
1949 	char *ch;
1950 
1951 	if (len < 2) {
1952 		dev_dbg(&port->dev, "malformed packet\n");
1953 		return 0;
1954 	}
1955 
1956 	/* Compare new line status to the old one, signal if different/
1957 	   N.B. packet may be processed more than once, but differences
1958 	   are only processed once.  */
1959 	status = packet[0] & FTDI_STATUS_B0_MASK;
1960 	if (status != priv->prev_status) {
1961 		char diff_status = status ^ priv->prev_status;
1962 
1963 		if (diff_status & FTDI_RS0_CTS)
1964 			port->icount.cts++;
1965 		if (diff_status & FTDI_RS0_DSR)
1966 			port->icount.dsr++;
1967 		if (diff_status & FTDI_RS0_RI)
1968 			port->icount.rng++;
1969 		if (diff_status & FTDI_RS0_RLSD) {
1970 			struct tty_struct *tty;
1971 
1972 			port->icount.dcd++;
1973 			tty = tty_port_tty_get(&port->port);
1974 			if (tty)
1975 				usb_serial_handle_dcd_change(port, tty,
1976 						status & FTDI_RS0_RLSD);
1977 			tty_kref_put(tty);
1978 		}
1979 
1980 		wake_up_interruptible(&port->port.delta_msr_wait);
1981 		priv->prev_status = status;
1982 	}
1983 
1984 	flag = TTY_NORMAL;
1985 	if (packet[1] & FTDI_RS_ERR_MASK) {
1986 		/* Break takes precedence over parity, which takes precedence
1987 		 * over framing errors */
1988 		if (packet[1] & FTDI_RS_BI) {
1989 			flag = TTY_BREAK;
1990 			port->icount.brk++;
1991 			usb_serial_handle_break(port);
1992 		} else if (packet[1] & FTDI_RS_PE) {
1993 			flag = TTY_PARITY;
1994 			port->icount.parity++;
1995 		} else if (packet[1] & FTDI_RS_FE) {
1996 			flag = TTY_FRAME;
1997 			port->icount.frame++;
1998 		}
1999 		/* Overrun is special, not associated with a char */
2000 		if (packet[1] & FTDI_RS_OE) {
2001 			port->icount.overrun++;
2002 			tty_insert_flip_char(&port->port, 0, TTY_OVERRUN);
2003 		}
2004 	}
2005 
2006 	/* save if the transmitter is empty or not */
2007 	if (packet[1] & FTDI_RS_TEMT)
2008 		priv->transmit_empty = 1;
2009 	else
2010 		priv->transmit_empty = 0;
2011 
2012 	len -= 2;
2013 	if (!len)
2014 		return 0;	/* status only */
2015 	port->icount.rx += len;
2016 	ch = packet + 2;
2017 
2018 	if (port->port.console && port->sysrq) {
2019 		for (i = 0; i < len; i++, ch++) {
2020 			if (!usb_serial_handle_sysrq_char(port, *ch))
2021 				tty_insert_flip_char(&port->port, *ch, flag);
2022 		}
2023 	} else {
2024 		tty_insert_flip_string_fixed_flag(&port->port, ch, flag, len);
2025 	}
2026 
2027 	return len;
2028 }
2029 
2030 static void ftdi_process_read_urb(struct urb *urb)
2031 {
2032 	struct usb_serial_port *port = urb->context;
2033 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2034 	char *data = (char *)urb->transfer_buffer;
2035 	int i;
2036 	int len;
2037 	int count = 0;
2038 
2039 	for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2040 		len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2041 		count += ftdi_process_packet(port, priv, &data[i], len);
2042 	}
2043 
2044 	if (count)
2045 		tty_flip_buffer_push(&port->port);
2046 }
2047 
2048 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2049 {
2050 	struct usb_serial_port *port = tty->driver_data;
2051 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2052 	__u16 urb_value;
2053 
2054 	/* break_state = -1 to turn on break, and 0 to turn off break */
2055 	/* see drivers/char/tty_io.c to see it used */
2056 	/* last_set_data_urb_value NEVER has the break bit set in it */
2057 
2058 	if (break_state)
2059 		urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2060 	else
2061 		urb_value = priv->last_set_data_urb_value;
2062 
2063 	if (usb_control_msg(port->serial->dev,
2064 			usb_sndctrlpipe(port->serial->dev, 0),
2065 			FTDI_SIO_SET_DATA_REQUEST,
2066 			FTDI_SIO_SET_DATA_REQUEST_TYPE,
2067 			urb_value , priv->interface,
2068 			NULL, 0, WDR_TIMEOUT) < 0) {
2069 		dev_err(&port->dev, "%s FAILED to enable/disable break state (state was %d)\n",
2070 			__func__, break_state);
2071 	}
2072 
2073 	dev_dbg(&port->dev, "%s break state is %d - urb is %d\n", __func__,
2074 		break_state, urb_value);
2075 
2076 }
2077 
2078 static bool ftdi_tx_empty(struct usb_serial_port *port)
2079 {
2080 	unsigned char buf[2];
2081 	int ret;
2082 
2083 	ret = ftdi_get_modem_status(port, buf);
2084 	if (ret == 2) {
2085 		if (!(buf[1] & FTDI_RS_TEMT))
2086 			return false;
2087 	}
2088 
2089 	return true;
2090 }
2091 
2092 /* old_termios contains the original termios settings and tty->termios contains
2093  * the new setting to be used
2094  * WARNING: set_termios calls this with old_termios in kernel space
2095  */
2096 static void ftdi_set_termios(struct tty_struct *tty,
2097 		struct usb_serial_port *port, struct ktermios *old_termios)
2098 {
2099 	struct usb_device *dev = port->serial->dev;
2100 	struct device *ddev = &port->dev;
2101 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2102 	struct ktermios *termios = &tty->termios;
2103 	unsigned int cflag = termios->c_cflag;
2104 	__u16 urb_value; /* will hold the new flags */
2105 
2106 	/* Added for xon/xoff support */
2107 	unsigned int iflag = termios->c_iflag;
2108 	unsigned char vstop;
2109 	unsigned char vstart;
2110 
2111 	/* Force baud rate if this device requires it, unless it is set to
2112 	   B0. */
2113 	if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2114 		dev_dbg(ddev, "%s: forcing baud rate for this device\n", __func__);
2115 		tty_encode_baud_rate(tty, priv->force_baud,
2116 					priv->force_baud);
2117 	}
2118 
2119 	/* Force RTS-CTS if this device requires it. */
2120 	if (priv->force_rtscts) {
2121 		dev_dbg(ddev, "%s: forcing rtscts for this device\n", __func__);
2122 		termios->c_cflag |= CRTSCTS;
2123 	}
2124 
2125 	/*
2126 	 * All FTDI UART chips are limited to CS7/8. We shouldn't pretend to
2127 	 * support CS5/6 and revert the CSIZE setting instead.
2128 	 *
2129 	 * CS5 however is used to control some smartcard readers which abuse
2130 	 * this limitation to switch modes. Original FTDI chips fall back to
2131 	 * eight data bits.
2132 	 *
2133 	 * TODO: Implement a quirk to only allow this with mentioned
2134 	 *       readers. One I know of (Argolis Smartreader V1)
2135 	 *       returns "USB smartcard server" as iInterface string.
2136 	 *       The vendor didn't bother with a custom VID/PID of
2137 	 *       course.
2138 	 */
2139 	if (C_CSIZE(tty) == CS6) {
2140 		dev_warn(ddev, "requested CSIZE setting not supported\n");
2141 
2142 		termios->c_cflag &= ~CSIZE;
2143 		if (old_termios)
2144 			termios->c_cflag |= old_termios->c_cflag & CSIZE;
2145 		else
2146 			termios->c_cflag |= CS8;
2147 	}
2148 
2149 	cflag = termios->c_cflag;
2150 
2151 	if (!old_termios)
2152 		goto no_skip;
2153 
2154 	if (old_termios->c_cflag == termios->c_cflag
2155 	    && old_termios->c_ispeed == termios->c_ispeed
2156 	    && old_termios->c_ospeed == termios->c_ospeed)
2157 		goto no_c_cflag_changes;
2158 
2159 	/* NOTE These routines can get interrupted by
2160 	   ftdi_sio_read_bulk_callback  - need to examine what this means -
2161 	   don't see any problems yet */
2162 
2163 	if ((old_termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)) ==
2164 	    (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)))
2165 		goto no_data_parity_stop_changes;
2166 
2167 no_skip:
2168 	/* Set number of data bits, parity, stop bits */
2169 
2170 	urb_value = 0;
2171 	urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2172 		      FTDI_SIO_SET_DATA_STOP_BITS_1);
2173 	if (cflag & PARENB) {
2174 		if (cflag & CMSPAR)
2175 			urb_value |= cflag & PARODD ?
2176 				     FTDI_SIO_SET_DATA_PARITY_MARK :
2177 				     FTDI_SIO_SET_DATA_PARITY_SPACE;
2178 		else
2179 			urb_value |= cflag & PARODD ?
2180 				     FTDI_SIO_SET_DATA_PARITY_ODD :
2181 				     FTDI_SIO_SET_DATA_PARITY_EVEN;
2182 	} else {
2183 		urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2184 	}
2185 	switch (cflag & CSIZE) {
2186 	case CS5:
2187 		dev_dbg(ddev, "Setting CS5 quirk\n");
2188 		break;
2189 	case CS7:
2190 		urb_value |= 7;
2191 		dev_dbg(ddev, "Setting CS7\n");
2192 		break;
2193 	default:
2194 	case CS8:
2195 		urb_value |= 8;
2196 		dev_dbg(ddev, "Setting CS8\n");
2197 		break;
2198 	}
2199 
2200 	/* This is needed by the break command since it uses the same command
2201 	   - but is or'ed with this value  */
2202 	priv->last_set_data_urb_value = urb_value;
2203 
2204 	if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2205 			    FTDI_SIO_SET_DATA_REQUEST,
2206 			    FTDI_SIO_SET_DATA_REQUEST_TYPE,
2207 			    urb_value , priv->interface,
2208 			    NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
2209 		dev_err(ddev, "%s FAILED to set databits/stopbits/parity\n",
2210 			__func__);
2211 	}
2212 
2213 	/* Now do the baudrate */
2214 no_data_parity_stop_changes:
2215 	if ((cflag & CBAUD) == B0) {
2216 		/* Disable flow control */
2217 		if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2218 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2219 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2220 				    0, priv->interface,
2221 				    NULL, 0, WDR_TIMEOUT) < 0) {
2222 			dev_err(ddev, "%s error from disable flowcontrol urb\n",
2223 				__func__);
2224 		}
2225 		/* Drop RTS and DTR */
2226 		clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2227 	} else {
2228 		/* set the baudrate determined before */
2229 		mutex_lock(&priv->cfg_lock);
2230 		if (change_speed(tty, port))
2231 			dev_err(ddev, "%s urb failed to set baudrate\n", __func__);
2232 		mutex_unlock(&priv->cfg_lock);
2233 		/* Ensure RTS and DTR are raised when baudrate changed from 0 */
2234 		if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
2235 			set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2236 	}
2237 
2238 	/* Set flow control */
2239 	/* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2240 no_c_cflag_changes:
2241 	if (cflag & CRTSCTS) {
2242 		dev_dbg(ddev, "%s Setting to CRTSCTS flow control\n", __func__);
2243 		if (usb_control_msg(dev,
2244 				    usb_sndctrlpipe(dev, 0),
2245 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2246 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2247 				    0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2248 				    NULL, 0, WDR_TIMEOUT) < 0) {
2249 			dev_err(ddev, "urb failed to set to rts/cts flow control\n");
2250 		}
2251 	} else {
2252 		/*
2253 		 * Xon/Xoff code
2254 		 *
2255 		 * Check the IXOFF status in the iflag component of the
2256 		 * termios structure. If IXOFF is not set, the pre-xon/xoff
2257 		 * code is executed.
2258 		 */
2259 		if (iflag & IXOFF) {
2260 			dev_dbg(ddev, "%s  request to enable xonxoff iflag=%04x\n",
2261 				__func__, iflag);
2262 			/* Try to enable the XON/XOFF on the ftdi_sio
2263 			 * Set the vstart and vstop -- could have been done up
2264 			 * above where a lot of other dereferencing is done but
2265 			 * that would be very inefficient as vstart and vstop
2266 			 * are not always needed.
2267 			 */
2268 			vstart = termios->c_cc[VSTART];
2269 			vstop = termios->c_cc[VSTOP];
2270 			urb_value = (vstop << 8) | (vstart);
2271 
2272 			if (usb_control_msg(dev,
2273 					    usb_sndctrlpipe(dev, 0),
2274 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2275 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2276 					    urb_value , (FTDI_SIO_XON_XOFF_HS
2277 							 | priv->interface),
2278 					    NULL, 0, WDR_TIMEOUT) < 0) {
2279 				dev_err(&port->dev, "urb failed to set to "
2280 					"xon/xoff flow control\n");
2281 			}
2282 		} else {
2283 			/* else clause to only run if cflag ! CRTSCTS and iflag
2284 			 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2285 			 * stack - not by device */
2286 			dev_dbg(ddev, "%s Turning off hardware flow control\n", __func__);
2287 			if (usb_control_msg(dev,
2288 					    usb_sndctrlpipe(dev, 0),
2289 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2290 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2291 					    0, priv->interface,
2292 					    NULL, 0, WDR_TIMEOUT) < 0) {
2293 				dev_err(ddev, "urb failed to clear flow control\n");
2294 			}
2295 		}
2296 	}
2297 }
2298 
2299 /*
2300  * Get modem-control status.
2301  *
2302  * Returns the number of status bytes retrieved (device dependant), or
2303  * negative error code.
2304  */
2305 static int ftdi_get_modem_status(struct usb_serial_port *port,
2306 						unsigned char status[2])
2307 {
2308 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2309 	unsigned char *buf;
2310 	int len;
2311 	int ret;
2312 
2313 	buf = kmalloc(2, GFP_KERNEL);
2314 	if (!buf)
2315 		return -ENOMEM;
2316 	/*
2317 	 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2318 	 * the same format as the data returned from the in point.
2319 	 */
2320 	switch (priv->chip_type) {
2321 	case SIO:
2322 		len = 1;
2323 		break;
2324 	case FT8U232AM:
2325 	case FT232BM:
2326 	case FT2232C:
2327 	case FT232RL:
2328 	case FT2232H:
2329 	case FT4232H:
2330 	case FT232H:
2331 	case FTX:
2332 		len = 2;
2333 		break;
2334 	default:
2335 		ret = -EFAULT;
2336 		goto out;
2337 	}
2338 
2339 	ret = usb_control_msg(port->serial->dev,
2340 			usb_rcvctrlpipe(port->serial->dev, 0),
2341 			FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2342 			FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2343 			0, priv->interface,
2344 			buf, len, WDR_TIMEOUT);
2345 	if (ret < 0) {
2346 		dev_err(&port->dev, "failed to get modem status: %d\n", ret);
2347 		ret = usb_translate_errors(ret);
2348 		goto out;
2349 	}
2350 
2351 	status[0] = buf[0];
2352 	if (ret > 1)
2353 		status[1] = buf[1];
2354 	else
2355 		status[1] = 0;
2356 
2357 	dev_dbg(&port->dev, "%s - 0x%02x%02x\n", __func__, status[0],
2358 								status[1]);
2359 out:
2360 	kfree(buf);
2361 
2362 	return ret;
2363 }
2364 
2365 static int ftdi_tiocmget(struct tty_struct *tty)
2366 {
2367 	struct usb_serial_port *port = tty->driver_data;
2368 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2369 	unsigned char buf[2];
2370 	int ret;
2371 
2372 	ret = ftdi_get_modem_status(port, buf);
2373 	if (ret < 0)
2374 		return ret;
2375 
2376 	ret =	(buf[0] & FTDI_SIO_DSR_MASK  ? TIOCM_DSR : 0) |
2377 		(buf[0] & FTDI_SIO_CTS_MASK  ? TIOCM_CTS : 0) |
2378 		(buf[0] & FTDI_SIO_RI_MASK   ? TIOCM_RI  : 0) |
2379 		(buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD  : 0) |
2380 		priv->last_dtr_rts;
2381 
2382 	return ret;
2383 }
2384 
2385 static int ftdi_tiocmset(struct tty_struct *tty,
2386 			unsigned int set, unsigned int clear)
2387 {
2388 	struct usb_serial_port *port = tty->driver_data;
2389 
2390 	return update_mctrl(port, set, clear);
2391 }
2392 
2393 static int ftdi_ioctl(struct tty_struct *tty,
2394 					unsigned int cmd, unsigned long arg)
2395 {
2396 	struct usb_serial_port *port = tty->driver_data;
2397 
2398 	/* Based on code from acm.c and others */
2399 	switch (cmd) {
2400 
2401 	case TIOCGSERIAL: /* gets serial port data */
2402 		return get_serial_info(port,
2403 					(struct serial_struct __user *) arg);
2404 
2405 	case TIOCSSERIAL: /* sets serial port data */
2406 		return set_serial_info(tty, port,
2407 					(struct serial_struct __user *) arg);
2408 	case TIOCSERGETLSR:
2409 		return get_lsr_info(port, (struct serial_struct __user *)arg);
2410 		break;
2411 	default:
2412 		break;
2413 	}
2414 
2415 	return -ENOIOCTLCMD;
2416 }
2417 
2418 module_usb_serial_driver(serial_drivers, id_table_combined);
2419 
2420 MODULE_AUTHOR(DRIVER_AUTHOR);
2421 MODULE_DESCRIPTION(DRIVER_DESC);
2422 MODULE_LICENSE("GPL");
2423 
2424 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2425 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
2426