xref: /openbmc/linux/drivers/usb/serial/ftdi_sio.c (revision af958a38)
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_NDI_device_setup(struct usb_serial *serial);
91 static int   ftdi_stmclite_probe(struct usb_serial *serial);
92 static int   ftdi_8u2232c_probe(struct usb_serial *serial);
93 static void  ftdi_USB_UIRT_setup(struct ftdi_private *priv);
94 static void  ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
95 
96 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
97 	.probe	= ftdi_jtag_probe,
98 };
99 
100 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
101 	.probe	= ftdi_NDI_device_setup,
102 };
103 
104 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
105 	.port_probe = ftdi_USB_UIRT_setup,
106 };
107 
108 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
109 	.port_probe = ftdi_HE_TIRA1_setup,
110 };
111 
112 static struct ftdi_sio_quirk ftdi_stmclite_quirk = {
113 	.probe	= ftdi_stmclite_probe,
114 };
115 
116 static struct ftdi_sio_quirk ftdi_8u2232c_quirk = {
117 	.probe	= ftdi_8u2232c_probe,
118 };
119 
120 /*
121  * The 8U232AM has the same API as the sio except for:
122  * - it can support MUCH higher baudrates; up to:
123  *   o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
124  *   o 230400 at 12MHz
125  *   so .. 8U232AM's baudrate setting codes are different
126  * - it has a two byte status code.
127  * - it returns characters every 16ms (the FTDI does it every 40ms)
128  *
129  * the bcdDevice value is used to differentiate FT232BM and FT245BM from
130  * the earlier FT8U232AM and FT8U232BM.  For now, include all known VID/PID
131  * combinations in both tables.
132  * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
133  * but I don't know if those ever went into mass production. [Ian Abbott]
134  */
135 
136 
137 
138 /*
139  * Device ID not listed? Test it using
140  * /sys/bus/usb-serial/drivers/ftdi_sio/new_id and send a patch or report.
141  */
142 static const struct usb_device_id id_table_combined[] = {
143 	{ USB_DEVICE(FTDI_VID, FTDI_ZEITCONTROL_TAGTRACE_MIFARE_PID) },
144 	{ USB_DEVICE(FTDI_VID, FTDI_CTI_MINI_PID) },
145 	{ USB_DEVICE(FTDI_VID, FTDI_CTI_NANO_PID) },
146 	{ USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
147 	{ USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
148 	{ USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
149 	{ USB_DEVICE(FTDI_VID, FTDI_BM_ATOM_NANO_PID) },
150 	{ USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
151 	{ USB_DEVICE(FTDI_VID, FTDI_EV3CON_PID) },
152 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
153 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
154 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
155 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
156 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
157 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
158 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
159 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
160 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_CAT_PID) },
161 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_WKEY_PID) },
162 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_RS232_PID) },
163 	{ USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
164 	{ USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
165 	{ USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
166 	{ USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
167 	{ USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
168 	{ USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
169 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
170 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
171 	{ USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
172 	{ USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) ,
173 		.driver_info = (kernel_ulong_t)&ftdi_8u2232c_quirk },
174 	{ USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
175 	{ USB_DEVICE(FTDI_VID, FTDI_232H_PID) },
176 	{ USB_DEVICE(FTDI_VID, FTDI_FTX_PID) },
177 	{ USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
178 	{ USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
179 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
180 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
181 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
182 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
183 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) },
184 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) },
185 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) },
186 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_CC_PID) },
187 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_AGP_PID) },
188 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
189 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
190 	{ USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
191 	{ USB_DEVICE(FTDI_VID, FTDI_TAGSYS_LP101_PID) },
192 	{ USB_DEVICE(FTDI_VID, FTDI_TAGSYS_P200X_PID) },
193 	{ USB_DEVICE(FTDI_VID, FTDI_LENZ_LIUSB_PID) },
194 	{ USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
195 	{ USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
196 	{ USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
197 	{ USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
198 	{ USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
199 	{ USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
200 	{ USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
201 	{ USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
202 	{ USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
203 	{ USB_DEVICE(FTDI_VID, FTDI_URBAN_0_PID) },
204 	{ USB_DEVICE(FTDI_VID, FTDI_URBAN_1_PID) },
205 	{ USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
206 	{ USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
207 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
208 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
209 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
210 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
211 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
212 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
213 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
214 	{ USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
215 	{ USB_DEVICE(FTDI_VID, FTDI_VARDAAN_PID) },
216 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
217 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
218 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
219 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
220 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
221 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
222 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
223 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
224 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
225 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
226 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
227 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
228 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
229 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
230 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
231 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
232 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
233 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
234 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
235 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
236 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
237 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
238 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
239 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
240 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
241 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
242 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
243 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
244 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
245 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
246 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
247 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
248 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
249 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
250 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
251 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
252 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
253 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
254 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
255 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID) },
256 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
257 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
258 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
259 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
260 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID) },
261 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
262 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
263 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
264 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
265 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
266 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
267 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
268 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
269 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
270 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
271 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
272 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
273 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
274 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
275 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
276 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
277 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
278 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
279 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
280 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
281 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
282 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
283 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
284 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
285 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
286 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
287 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
288 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
289 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
290 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
291 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
292 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
293 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
294 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
295 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
296 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
297 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
298 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
299 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID) },
300 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID) },
301 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID) },
302 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID) },
303 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID) },
304 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID) },
305 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
306 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
307 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
308 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
309 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
310 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
311 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
312 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
313 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
314 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
315 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
316 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
317 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
318 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
319 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
320 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
321 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
322 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
323 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
324 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
325 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
326 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
327 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
328 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
329 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
330 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
331 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
332 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
333 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
334 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
335 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
336 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
337 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
338 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
339 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
340 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
341 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
342 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
343 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
344 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
345 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
346 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
347 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
348 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
349 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
350 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
351 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
352 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
353 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
354 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
355 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
356 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
357 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
358 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
359 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
360 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
361 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
362 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
363 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
364 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
365 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
366 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
367 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
368 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
369 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
370 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
371 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
372 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
373 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
374 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
375 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
376 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
377 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
378 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
379 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
380 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
381 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
382 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
383 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
384 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
385 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
386 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
387 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
388 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
389 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
390 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
391 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
392 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
393 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
394 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
395 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
396 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
397 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
398 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
399 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
400 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
401 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
402 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
403 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
404 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
405 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
406 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
407 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
408 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
409 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
410 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
411 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
412 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
413 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
414 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
415 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
416 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
417 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
418 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
419 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
420 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
421 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
422 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
423 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
424 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
425 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
426 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
427 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
428 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
429 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
430 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
431 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
432 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
433 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
434 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
435 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
436 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
437 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
438 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
439 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
440 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
441 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
442 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
443 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
444 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
445 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
446 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
447 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
448 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
449 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
450 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
451 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
452 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
453 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
454 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
455 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
456 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
457 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
458 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
459 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
460 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
461 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
462 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
463 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
464 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
465 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
466 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
467 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
468 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
469 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
470 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
471 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
472 	{ USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
473 	{ USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
474 	{ USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
475 	{ USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
476 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
477 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
478 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
479 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
480 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
481 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
482 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
483 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
484 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
485 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
486 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
487 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
488 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
489 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
490 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
491 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
492 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
493 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
494 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
495 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
496 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
497 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
498 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
499 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
500 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
501 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
502 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
503 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
504 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
505 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
506 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
507 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
508 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
509 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
510 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
511 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
512 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
513 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
514 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
515 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
516 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
517 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
518 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
519 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
520 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
521 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
522 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
523 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_1_PID) },
524 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_2_PID) },
525 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_3_PID) },
526 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_4_PID) },
527 	{ USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
528 	{ USB_DEVICE(OCT_VID, OCT_US101_PID) },
529 	{ USB_DEVICE(OCT_VID, OCT_DK201_PID) },
530 	{ USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
531 		.driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
532 	{ USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
533 		.driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
534 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
535 	{ USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
536 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
537 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
538 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
539 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
540 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
541 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
542 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
543 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
544 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
545 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
546 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
547 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
548 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
549 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
550 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
551 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
552 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
553 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
554 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
555 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
556 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
557 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
558 	{ USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
559 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
560 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
561 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
562 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
563 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
564 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
565 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
566 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
567 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
568 	{ USB_DEVICE(FTDI_VID, FTDI_TAVIR_STK500_PID) },
569 	{ USB_DEVICE(FTDI_VID, FTDI_TIAO_UMPA_PID),
570 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
571 	{ USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLXM_PID),
572 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
573 	/*
574 	 * ELV devices:
575 	 */
576 	{ USB_DEVICE(FTDI_ELV_VID, FTDI_ELV_WS300_PID) },
577 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
578 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
579 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
580 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
581 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
582 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
583 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
584 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
585 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
586 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
587 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
588 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
589 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
590 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
591 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
592 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
593 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
594 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
595 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
596 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
597 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
598 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
599 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
600 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
601 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
602 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
603 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
604 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
605 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
606 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
607 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
608 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
609 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
610 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
611 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
612 	{ USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
613 	{ USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
614 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
615 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
616 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
617 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
618 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
619 	{ USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
620 	{ USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
621 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
622 	{ USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
623 	{ USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
624 	{ USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
625 	{ USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
626 	{ USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
627 	{ USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
628 	{ USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
629 	{ USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
630 	{ USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
631 	{ USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
632 	{ USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) },
633 	{ USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
634 	{ USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) },
635 	{ USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
636 	{ USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
637 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
638 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
639 	{ USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
640 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
641 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
642 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
643 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
644 	{ USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
645 	{ USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
646 	{ USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
647 	{ USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
648 	{ USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
649 	{ USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
650 	{ USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
651 	{ USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
652 	{ USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
653 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
654 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
655 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_3_PID) },
656 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
657 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
658 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
659 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
660 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
661 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
662 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
663 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
664 	{ USB_DEVICE(XSENS_VID, XSENS_CONVERTER_PID) },
665 	{ USB_DEVICE(XSENS_VID, XSENS_MTW_PID) },
666 	{ USB_DEVICE(FTDI_VID, FTDI_OMNI1509) },
667 	{ USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
668 	{ USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
669 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
670 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
671 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
672 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
673 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
674 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
675 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
676 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
677 	{ USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
678 	{ USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
679 	{ USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
680 	{ USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
681 	{ USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
682 	{ USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
683 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
684 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
685 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
686 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
687 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
688 	{ USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
689 	{ USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
690 	{ USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
691 	{ USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
692 	{ USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
693 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
694 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
695 	{ USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
696 	{ USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
697 	{ USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
698 	{ USB_DEVICE(FTDI_VID, FTDI_NZR_SEM_USB_PID) },
699 	{ USB_DEVICE(ICOM_VID, ICOM_ID_1_PID) },
700 	{ USB_DEVICE(ICOM_VID, ICOM_OPC_U_UC_PID) },
701 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C1_PID) },
702 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C2_PID) },
703 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2D_PID) },
704 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2VT_PID) },
705 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2VR_PID) },
706 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVT_PID) },
707 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVR_PID) },
708 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVT_PID) },
709 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVR_PID) },
710 	{ USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
711 	{ USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
712 	{ USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
713 	{ USB_DEVICE(TESTO_VID, TESTO_1_PID) },
714 	{ USB_DEVICE(TESTO_VID, TESTO_3_PID) },
715 	{ USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
716 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
717 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
718 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
719 	{ USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
720 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
721 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
722 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
723 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
724 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
725 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
726 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
727 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
728 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
729 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
730 	{ USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
731 	{ USB_DEVICE(NOVITUS_VID, NOVITUS_BONO_E_PID) },
732 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S03_PID) },
733 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_59_PID) },
734 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57A_PID) },
735 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57B_PID) },
736 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29A_PID) },
737 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29B_PID) },
738 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29F_PID) },
739 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62B_PID) },
740 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S01_PID) },
741 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63_PID) },
742 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29C_PID) },
743 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_81B_PID) },
744 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_82B_PID) },
745 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5D_PID) },
746 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K4Y_PID) },
747 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5G_PID) },
748 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S05_PID) },
749 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_60_PID) },
750 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_61_PID) },
751 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62_PID) },
752 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63B_PID) },
753 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_64_PID) },
754 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_65_PID) },
755 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92_PID) },
756 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92D_PID) },
757 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_W5R_PID) },
758 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_A5R_PID) },
759 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_PW1_PID) },
760 	{ USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
761 	{ USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
762 	{ USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
763 	{ USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
764 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
765 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) },
766 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
767 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
768 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID),
769 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
770 	{ USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
771 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
772 	{ USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
773 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
774 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
775 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
776 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
777 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
778 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_ICDI_BOARD_PID),
779 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
780 	{ USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
781 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
782 	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
783 	{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
784 
785 	/* Papouch devices based on FTDI chip */
786 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_PID) },
787 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_PID) },
788 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_PID) },
789 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_2_PID) },
790 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_2_PID) },
791 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_2_PID) },
792 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485S_PID) },
793 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485C_PID) },
794 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_LEC_PID) },
795 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB232_PID) },
796 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
797 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_IRAMP_PID) },
798 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK5_PID) },
799 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO8x8_PID) },
800 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
801 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x2_PID) },
802 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO10x1_PID) },
803 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO30x3_PID) },
804 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO60x3_PID) },
805 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x16_PID) },
806 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO3x32_PID) },
807 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK6_PID) },
808 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_UPSUSB_PID) },
809 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_MU_PID) },
810 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SIMUKEY_PID) },
811 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
812 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMUX_PID) },
813 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMSR_PID) },
814 
815 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
816 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
817 	{ USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
818 	{ USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
819 	{ USB_DEVICE(ATMEL_VID, STK541_PID) },
820 	{ USB_DEVICE(DE_VID, STB_PID) },
821 	{ USB_DEVICE(DE_VID, WHT_PID) },
822 	{ USB_DEVICE(ADI_VID, ADI_GNICE_PID),
823 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
824 	{ USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
825 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
826 	{ USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID,
827 					USB_CLASS_VENDOR_SPEC,
828 					USB_SUBCLASS_VENDOR_SPEC, 0x00) },
829 	{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
830 	{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
831 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
832 	{ USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
833 	{ USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
834 	{ USB_DEVICE(FTDI_VID, PI_C865_PID) },
835 	{ USB_DEVICE(FTDI_VID, PI_C857_PID) },
836 	{ USB_DEVICE(PI_VID, PI_C866_PID) },
837 	{ USB_DEVICE(PI_VID, PI_C663_PID) },
838 	{ USB_DEVICE(PI_VID, PI_C725_PID) },
839 	{ USB_DEVICE(PI_VID, PI_E517_PID) },
840 	{ USB_DEVICE(PI_VID, PI_C863_PID) },
841 	{ USB_DEVICE(PI_VID, PI_E861_PID) },
842 	{ USB_DEVICE(PI_VID, PI_C867_PID) },
843 	{ USB_DEVICE(PI_VID, PI_E609_PID) },
844 	{ USB_DEVICE(PI_VID, PI_E709_PID) },
845 	{ USB_DEVICE(PI_VID, PI_100F_PID) },
846 	{ USB_DEVICE(PI_VID, PI_1011_PID) },
847 	{ USB_DEVICE(PI_VID, PI_1012_PID) },
848 	{ USB_DEVICE(PI_VID, PI_1013_PID) },
849 	{ USB_DEVICE(PI_VID, PI_1014_PID) },
850 	{ USB_DEVICE(PI_VID, PI_1015_PID) },
851 	{ USB_DEVICE(PI_VID, PI_1016_PID) },
852 	{ USB_DEVICE(KONDO_VID, KONDO_USB_SERIAL_PID) },
853 	{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
854 	{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
855 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
856 	{ USB_DEVICE(FTDI_VID, TI_XDS100V2_PID),
857 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
858 	{ USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
859 	{ USB_DEVICE(FTDI_VID, HAMEG_HO720_PID) },
860 	{ USB_DEVICE(FTDI_VID, HAMEG_HO730_PID) },
861 	{ USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
862 	{ USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
863 	{ USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
864 	{ USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
865 	{ USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
866 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_ST_PID),
867 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
868 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SLITE_PID),
869 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
870 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH2_PID),
871 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
872 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH4_PID),
873 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
874 	{ USB_DEVICE(FTDI_VID, SEGWAY_RMP200_PID) },
875 	{ USB_DEVICE(FTDI_VID, ACCESIO_COM4SM_PID) },
876 	{ USB_DEVICE(IONICS_VID, IONICS_PLUGCOMPUTER_PID),
877 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
878 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_24_MASTER_WING_PID) },
879 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_PC_WING_PID) },
880 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_USB_DMX_PID) },
881 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MIDI_TIMECODE_PID) },
882 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MINI_WING_PID) },
883 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MAXI_WING_PID) },
884 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MEDIA_WING_PID) },
885 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_WING_PID) },
886 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LOGBOOKML_PID) },
887 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) },
888 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) },
889 	{ USB_DEVICE(FTDI_VID, FTDI_CINTERION_MC55I_PID) },
890 	{ USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
891 	{ USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
892 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
893 	{ USB_DEVICE(ST_VID, ST_STMCLT_2232_PID),
894 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
895 	{ USB_DEVICE(ST_VID, ST_STMCLT_4232_PID),
896 		.driver_info = (kernel_ulong_t)&ftdi_stmclite_quirk },
897 	{ USB_DEVICE(FTDI_VID, FTDI_RF_R106) },
898 	{ USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID),
899 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
900 	{ USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) },
901 	/* Crucible Devices */
902 	{ USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) },
903 	{ USB_DEVICE(FTDI_VID, FTDI_Z3X_PID) },
904 	/* Cressi Devices */
905 	{ USB_DEVICE(FTDI_VID, FTDI_CRESSI_PID) },
906 	/* Brainboxes Devices */
907 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_001_PID) },
908 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_012_PID) },
909 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_023_PID) },
910 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_034_PID) },
911 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_101_PID) },
912 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_1_PID) },
913 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_2_PID) },
914 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_3_PID) },
915 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_4_PID) },
916 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_5_PID) },
917 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_6_PID) },
918 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_7_PID) },
919 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_8_PID) },
920 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_257_PID) },
921 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_1_PID) },
922 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_2_PID) },
923 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_3_PID) },
924 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_4_PID) },
925 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_313_PID) },
926 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_324_PID) },
927 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_346_1_PID) },
928 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_346_2_PID) },
929 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_357_PID) },
930 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_606_1_PID) },
931 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_606_2_PID) },
932 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_606_3_PID) },
933 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_701_1_PID) },
934 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_701_2_PID) },
935 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_842_1_PID) },
936 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_842_2_PID) },
937 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_842_3_PID) },
938 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_842_4_PID) },
939 	/* ekey Devices */
940 	{ USB_DEVICE(FTDI_VID, FTDI_EKEY_CONV_USB_PID) },
941 	/* Infineon Devices */
942 	{ USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_PID, 1) },
943 	/* GE Healthcare devices */
944 	{ USB_DEVICE(GE_HEALTHCARE_VID, GE_HEALTHCARE_NEMO_TRACKER_PID) },
945 	{ }					/* Terminating entry */
946 };
947 
948 MODULE_DEVICE_TABLE(usb, id_table_combined);
949 
950 static const char *ftdi_chip_name[] = {
951 	[SIO] = "SIO",	/* the serial part of FT8U100AX */
952 	[FT8U232AM] = "FT8U232AM",
953 	[FT232BM] = "FT232BM",
954 	[FT2232C] = "FT2232C",
955 	[FT232RL] = "FT232RL",
956 	[FT2232H] = "FT2232H",
957 	[FT4232H] = "FT4232H",
958 	[FT232H]  = "FT232H",
959 	[FTX]     = "FT-X"
960 };
961 
962 
963 /* Used for TIOCMIWAIT */
964 #define FTDI_STATUS_B0_MASK	(FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
965 #define FTDI_STATUS_B1_MASK	(FTDI_RS_BI)
966 /* End TIOCMIWAIT */
967 
968 /* function prototypes for a FTDI serial converter */
969 static int  ftdi_sio_probe(struct usb_serial *serial,
970 					const struct usb_device_id *id);
971 static int  ftdi_sio_port_probe(struct usb_serial_port *port);
972 static int  ftdi_sio_port_remove(struct usb_serial_port *port);
973 static int  ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
974 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
975 static void ftdi_process_read_urb(struct urb *urb);
976 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
977 						void *dest, size_t size);
978 static void ftdi_set_termios(struct tty_struct *tty,
979 			struct usb_serial_port *port, struct ktermios *old);
980 static int  ftdi_tiocmget(struct tty_struct *tty);
981 static int  ftdi_tiocmset(struct tty_struct *tty,
982 			unsigned int set, unsigned int clear);
983 static int  ftdi_ioctl(struct tty_struct *tty,
984 			unsigned int cmd, unsigned long arg);
985 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
986 static bool ftdi_tx_empty(struct usb_serial_port *port);
987 static int ftdi_get_modem_status(struct usb_serial_port *port,
988 						unsigned char status[2]);
989 
990 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
991 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
992 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
993 static __u32 ftdi_232bm_baud_to_divisor(int baud);
994 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
995 static __u32 ftdi_2232h_baud_to_divisor(int baud);
996 
997 static struct usb_serial_driver ftdi_sio_device = {
998 	.driver = {
999 		.owner =	THIS_MODULE,
1000 		.name =		"ftdi_sio",
1001 	},
1002 	.description =		"FTDI USB Serial Device",
1003 	.id_table =		id_table_combined,
1004 	.num_ports =		1,
1005 	.bulk_in_size =		512,
1006 	.bulk_out_size =	256,
1007 	.probe =		ftdi_sio_probe,
1008 	.port_probe =		ftdi_sio_port_probe,
1009 	.port_remove =		ftdi_sio_port_remove,
1010 	.open =			ftdi_open,
1011 	.dtr_rts =		ftdi_dtr_rts,
1012 	.throttle =		usb_serial_generic_throttle,
1013 	.unthrottle =		usb_serial_generic_unthrottle,
1014 	.process_read_urb =	ftdi_process_read_urb,
1015 	.prepare_write_buffer =	ftdi_prepare_write_buffer,
1016 	.tiocmget =		ftdi_tiocmget,
1017 	.tiocmset =		ftdi_tiocmset,
1018 	.tiocmiwait =		usb_serial_generic_tiocmiwait,
1019 	.get_icount =           usb_serial_generic_get_icount,
1020 	.ioctl =		ftdi_ioctl,
1021 	.set_termios =		ftdi_set_termios,
1022 	.break_ctl =		ftdi_break_ctl,
1023 	.tx_empty =		ftdi_tx_empty,
1024 };
1025 
1026 static struct usb_serial_driver * const serial_drivers[] = {
1027 	&ftdi_sio_device, NULL
1028 };
1029 
1030 
1031 #define WDR_TIMEOUT 5000 /* default urb timeout */
1032 #define WDR_SHORT_TIMEOUT 1000	/* shorter urb timeout */
1033 
1034 /*
1035  * ***************************************************************************
1036  * Utility functions
1037  * ***************************************************************************
1038  */
1039 
1040 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
1041 {
1042 	unsigned short int divisor;
1043 	/* divisor shifted 3 bits to the left */
1044 	int divisor3 = base / 2 / baud;
1045 	if ((divisor3 & 0x7) == 7)
1046 		divisor3++; /* round x.7/8 up to x+1 */
1047 	divisor = divisor3 >> 3;
1048 	divisor3 &= 0x7;
1049 	if (divisor3 == 1)
1050 		divisor |= 0xc000;
1051 	else if (divisor3 >= 4)
1052 		divisor |= 0x4000;
1053 	else if (divisor3 != 0)
1054 		divisor |= 0x8000;
1055 	else if (divisor == 1)
1056 		divisor = 0;	/* special case for maximum baud rate */
1057 	return divisor;
1058 }
1059 
1060 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
1061 {
1062 	 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1063 }
1064 
1065 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
1066 {
1067 	static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
1068 	__u32 divisor;
1069 	/* divisor shifted 3 bits to the left */
1070 	int divisor3 = base / 2 / baud;
1071 	divisor = divisor3 >> 3;
1072 	divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
1073 	/* Deal with special cases for highest baud rates. */
1074 	if (divisor == 1)
1075 		divisor = 0;
1076 	else if (divisor == 0x4001)
1077 		divisor = 1;
1078 	return divisor;
1079 }
1080 
1081 static __u32 ftdi_232bm_baud_to_divisor(int baud)
1082 {
1083 	 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1084 }
1085 
1086 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
1087 {
1088 	static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
1089 	__u32 divisor;
1090 	int divisor3;
1091 
1092 	/* hi-speed baud rate is 10-bit sampling instead of 16-bit */
1093 	divisor3 = base * 8 / (baud * 10);
1094 
1095 	divisor = divisor3 >> 3;
1096 	divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
1097 	/* Deal with special cases for highest baud rates. */
1098 	if (divisor == 1)
1099 		divisor = 0;
1100 	else if (divisor == 0x4001)
1101 		divisor = 1;
1102 	/*
1103 	 * Set this bit to turn off a divide by 2.5 on baud rate generator
1104 	 * This enables baud rates up to 12Mbaud but cannot reach below 1200
1105 	 * baud with this bit set
1106 	 */
1107 	divisor |= 0x00020000;
1108 	return divisor;
1109 }
1110 
1111 static __u32 ftdi_2232h_baud_to_divisor(int baud)
1112 {
1113 	 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
1114 }
1115 
1116 #define set_mctrl(port, set)		update_mctrl((port), (set), 0)
1117 #define clear_mctrl(port, clear)	update_mctrl((port), 0, (clear))
1118 
1119 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
1120 							unsigned int clear)
1121 {
1122 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1123 	struct device *dev = &port->dev;
1124 	unsigned urb_value;
1125 	int rv;
1126 
1127 	if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
1128 		dev_dbg(dev, "%s - DTR|RTS not being set|cleared\n", __func__);
1129 		return 0;	/* no change */
1130 	}
1131 
1132 	clear &= ~set;	/* 'set' takes precedence over 'clear' */
1133 	urb_value = 0;
1134 	if (clear & TIOCM_DTR)
1135 		urb_value |= FTDI_SIO_SET_DTR_LOW;
1136 	if (clear & TIOCM_RTS)
1137 		urb_value |= FTDI_SIO_SET_RTS_LOW;
1138 	if (set & TIOCM_DTR)
1139 		urb_value |= FTDI_SIO_SET_DTR_HIGH;
1140 	if (set & TIOCM_RTS)
1141 		urb_value |= FTDI_SIO_SET_RTS_HIGH;
1142 	rv = usb_control_msg(port->serial->dev,
1143 			       usb_sndctrlpipe(port->serial->dev, 0),
1144 			       FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1145 			       FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
1146 			       urb_value, priv->interface,
1147 			       NULL, 0, WDR_TIMEOUT);
1148 	if (rv < 0) {
1149 		dev_dbg(dev, "%s Error from MODEM_CTRL urb: DTR %s, RTS %s\n",
1150 			__func__,
1151 			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
1152 			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
1153 		rv = usb_translate_errors(rv);
1154 	} else {
1155 		dev_dbg(dev, "%s - DTR %s, RTS %s\n", __func__,
1156 			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
1157 			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
1158 		/* FIXME: locking on last_dtr_rts */
1159 		priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
1160 	}
1161 	return rv;
1162 }
1163 
1164 
1165 static __u32 get_ftdi_divisor(struct tty_struct *tty,
1166 						struct usb_serial_port *port)
1167 {
1168 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1169 	struct device *dev = &port->dev;
1170 	__u32 div_value = 0;
1171 	int div_okay = 1;
1172 	int baud;
1173 
1174 	/*
1175 	 * The logic involved in setting the baudrate can be cleanly split into
1176 	 * 3 steps.
1177 	 * 1. Standard baud rates are set in tty->termios->c_cflag
1178 	 * 2. If these are not enough, you can set any speed using alt_speed as
1179 	 * follows:
1180 	 *    - set tty->termios->c_cflag speed to B38400
1181 	 *    - set your real speed in tty->alt_speed; it gets ignored when
1182 	 *      alt_speed==0, (or)
1183 	 *    - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1184 	 *	follows:
1185 	 *      flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1186 	 *	this just sets alt_speed to (HI: 57600, VHI: 115200,
1187 	 *	SHI: 230400, WARP: 460800)
1188 	 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1189 	 * 3. You can also set baud rate by setting custom divisor as follows
1190 	 *    - set tty->termios->c_cflag speed to B38400
1191 	 *    - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1192 	 *	follows:
1193 	 *      o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1194 	 *      o custom_divisor set to baud_base / your_new_baudrate
1195 	 * ** Step 3 is done courtesy of code borrowed from serial.c
1196 	 *    I should really spend some time and separate + move this common
1197 	 *    code to serial.c, it is replicated in nearly every serial driver
1198 	 *    you see.
1199 	 */
1200 
1201 	/* 1. Get the baud rate from the tty settings, this observes
1202 	      alt_speed hack */
1203 
1204 	baud = tty_get_baud_rate(tty);
1205 	dev_dbg(dev, "%s - tty_get_baud_rate reports speed %d\n", __func__, baud);
1206 
1207 	/* 2. Observe async-compatible custom_divisor hack, update baudrate
1208 	   if needed */
1209 
1210 	if (baud == 38400 &&
1211 	    ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1212 	     (priv->custom_divisor)) {
1213 		baud = priv->baud_base / priv->custom_divisor;
1214 		dev_dbg(dev, "%s - custom divisor %d sets baud rate to %d\n",
1215 			__func__, priv->custom_divisor, baud);
1216 	}
1217 
1218 	/* 3. Convert baudrate to device-specific divisor */
1219 
1220 	if (!baud)
1221 		baud = 9600;
1222 	switch (priv->chip_type) {
1223 	case SIO: /* SIO chip */
1224 		switch (baud) {
1225 		case 300: div_value = ftdi_sio_b300; break;
1226 		case 600: div_value = ftdi_sio_b600; break;
1227 		case 1200: div_value = ftdi_sio_b1200; break;
1228 		case 2400: div_value = ftdi_sio_b2400; break;
1229 		case 4800: div_value = ftdi_sio_b4800; break;
1230 		case 9600: div_value = ftdi_sio_b9600; break;
1231 		case 19200: div_value = ftdi_sio_b19200; break;
1232 		case 38400: div_value = ftdi_sio_b38400; break;
1233 		case 57600: div_value = ftdi_sio_b57600;  break;
1234 		case 115200: div_value = ftdi_sio_b115200; break;
1235 		} /* baud */
1236 		if (div_value == 0) {
1237 			dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n",
1238 				__func__,  baud);
1239 			div_value = ftdi_sio_b9600;
1240 			baud = 9600;
1241 			div_okay = 0;
1242 		}
1243 		break;
1244 	case FT8U232AM: /* 8U232AM chip */
1245 		if (baud <= 3000000) {
1246 			div_value = ftdi_232am_baud_to_divisor(baud);
1247 		} else {
1248 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1249 			baud = 9600;
1250 			div_value = ftdi_232am_baud_to_divisor(9600);
1251 			div_okay = 0;
1252 		}
1253 		break;
1254 	case FT232BM: /* FT232BM chip */
1255 	case FT2232C: /* FT2232C chip */
1256 	case FT232RL: /* FT232RL chip */
1257 	case FTX:     /* FT-X series */
1258 		if (baud <= 3000000) {
1259 			__u16 product_id = le16_to_cpu(
1260 				port->serial->dev->descriptor.idProduct);
1261 			if (((FTDI_NDI_HUC_PID == product_id) ||
1262 			     (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1263 			     (FTDI_NDI_FUTURE_2_PID == product_id) ||
1264 			     (FTDI_NDI_FUTURE_3_PID == product_id) ||
1265 			     (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1266 			    (baud == 19200)) {
1267 				baud = 1200000;
1268 			}
1269 			div_value = ftdi_232bm_baud_to_divisor(baud);
1270 		} else {
1271 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1272 			div_value = ftdi_232bm_baud_to_divisor(9600);
1273 			div_okay = 0;
1274 			baud = 9600;
1275 		}
1276 		break;
1277 	case FT2232H: /* FT2232H chip */
1278 	case FT4232H: /* FT4232H chip */
1279 	case FT232H:  /* FT232H chip */
1280 		if ((baud <= 12000000) && (baud >= 1200)) {
1281 			div_value = ftdi_2232h_baud_to_divisor(baud);
1282 		} else if (baud < 1200) {
1283 			div_value = ftdi_232bm_baud_to_divisor(baud);
1284 		} else {
1285 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1286 			div_value = ftdi_232bm_baud_to_divisor(9600);
1287 			div_okay = 0;
1288 			baud = 9600;
1289 		}
1290 		break;
1291 	} /* priv->chip_type */
1292 
1293 	if (div_okay) {
1294 		dev_dbg(dev, "%s - Baud rate set to %d (divisor 0x%lX) on chip %s\n",
1295 			__func__, baud, (unsigned long)div_value,
1296 			ftdi_chip_name[priv->chip_type]);
1297 	}
1298 
1299 	tty_encode_baud_rate(tty, baud, baud);
1300 	return div_value;
1301 }
1302 
1303 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1304 {
1305 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1306 	__u16 urb_value;
1307 	__u16 urb_index;
1308 	__u32 urb_index_value;
1309 	int rv;
1310 
1311 	urb_index_value = get_ftdi_divisor(tty, port);
1312 	urb_value = (__u16)urb_index_value;
1313 	urb_index = (__u16)(urb_index_value >> 16);
1314 	if ((priv->chip_type == FT2232C) || (priv->chip_type == FT2232H) ||
1315 		(priv->chip_type == FT4232H) || (priv->chip_type == FT232H)) {
1316 		/* Probably the BM type needs the MSB of the encoded fractional
1317 		 * divider also moved like for the chips above. Any infos? */
1318 		urb_index = (__u16)((urb_index << 8) | priv->interface);
1319 	}
1320 
1321 	rv = usb_control_msg(port->serial->dev,
1322 			    usb_sndctrlpipe(port->serial->dev, 0),
1323 			    FTDI_SIO_SET_BAUDRATE_REQUEST,
1324 			    FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1325 			    urb_value, urb_index,
1326 			    NULL, 0, WDR_SHORT_TIMEOUT);
1327 	return rv;
1328 }
1329 
1330 static int write_latency_timer(struct usb_serial_port *port)
1331 {
1332 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1333 	struct usb_device *udev = port->serial->dev;
1334 	int rv;
1335 	int l = priv->latency;
1336 
1337 	if (priv->flags & ASYNC_LOW_LATENCY)
1338 		l = 1;
1339 
1340 	dev_dbg(&port->dev, "%s: setting latency timer = %i\n", __func__, l);
1341 
1342 	rv = usb_control_msg(udev,
1343 			     usb_sndctrlpipe(udev, 0),
1344 			     FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1345 			     FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1346 			     l, priv->interface,
1347 			     NULL, 0, WDR_TIMEOUT);
1348 	if (rv < 0)
1349 		dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1350 	return rv;
1351 }
1352 
1353 static int read_latency_timer(struct usb_serial_port *port)
1354 {
1355 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1356 	struct usb_device *udev = port->serial->dev;
1357 	unsigned char *buf;
1358 	int rv;
1359 
1360 	buf = kmalloc(1, GFP_KERNEL);
1361 	if (!buf)
1362 		return -ENOMEM;
1363 
1364 	rv = usb_control_msg(udev,
1365 			     usb_rcvctrlpipe(udev, 0),
1366 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1367 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1368 			     0, priv->interface,
1369 			     buf, 1, WDR_TIMEOUT);
1370 	if (rv < 0)
1371 		dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1372 	else
1373 		priv->latency = buf[0];
1374 
1375 	kfree(buf);
1376 
1377 	return rv;
1378 }
1379 
1380 static int get_serial_info(struct usb_serial_port *port,
1381 				struct serial_struct __user *retinfo)
1382 {
1383 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1384 	struct serial_struct tmp;
1385 
1386 	if (!retinfo)
1387 		return -EFAULT;
1388 	memset(&tmp, 0, sizeof(tmp));
1389 	tmp.flags = priv->flags;
1390 	tmp.baud_base = priv->baud_base;
1391 	tmp.custom_divisor = priv->custom_divisor;
1392 	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1393 		return -EFAULT;
1394 	return 0;
1395 }
1396 
1397 static int set_serial_info(struct tty_struct *tty,
1398 	struct usb_serial_port *port, struct serial_struct __user *newinfo)
1399 {
1400 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1401 	struct serial_struct new_serial;
1402 	struct ftdi_private old_priv;
1403 
1404 	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1405 		return -EFAULT;
1406 
1407 	mutex_lock(&priv->cfg_lock);
1408 	old_priv = *priv;
1409 
1410 	/* Do error checking and permission checking */
1411 
1412 	if (!capable(CAP_SYS_ADMIN)) {
1413 		if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1414 		     (priv->flags & ~ASYNC_USR_MASK))) {
1415 			mutex_unlock(&priv->cfg_lock);
1416 			return -EPERM;
1417 		}
1418 		priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1419 			       (new_serial.flags & ASYNC_USR_MASK));
1420 		priv->custom_divisor = new_serial.custom_divisor;
1421 		goto check_and_exit;
1422 	}
1423 
1424 	if (new_serial.baud_base != priv->baud_base) {
1425 		mutex_unlock(&priv->cfg_lock);
1426 		return -EINVAL;
1427 	}
1428 
1429 	/* Make the changes - these are privileged changes! */
1430 
1431 	priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1432 					(new_serial.flags & ASYNC_FLAGS));
1433 	priv->custom_divisor = new_serial.custom_divisor;
1434 
1435 	write_latency_timer(port);
1436 
1437 check_and_exit:
1438 	if ((old_priv.flags & ASYNC_SPD_MASK) !=
1439 	     (priv->flags & ASYNC_SPD_MASK)) {
1440 		if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1441 			tty->alt_speed = 57600;
1442 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1443 			tty->alt_speed = 115200;
1444 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1445 			tty->alt_speed = 230400;
1446 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1447 			tty->alt_speed = 460800;
1448 		else
1449 			tty->alt_speed = 0;
1450 	}
1451 	if (((old_priv.flags & ASYNC_SPD_MASK) !=
1452 	     (priv->flags & ASYNC_SPD_MASK)) ||
1453 	    (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1454 	     (old_priv.custom_divisor != priv->custom_divisor))) {
1455 		change_speed(tty, port);
1456 		mutex_unlock(&priv->cfg_lock);
1457 	}
1458 	else
1459 		mutex_unlock(&priv->cfg_lock);
1460 	return 0;
1461 }
1462 
1463 static int get_lsr_info(struct usb_serial_port *port,
1464 			struct serial_struct __user *retinfo)
1465 {
1466 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1467 	unsigned int result = 0;
1468 
1469 	if (!retinfo)
1470 		return -EFAULT;
1471 
1472 	if (priv->transmit_empty)
1473 		result = TIOCSER_TEMT;
1474 
1475 	if (copy_to_user(retinfo, &result, sizeof(unsigned int)))
1476 		return -EFAULT;
1477 	return 0;
1478 }
1479 
1480 
1481 /* Determine type of FTDI chip based on USB config and descriptor. */
1482 static void ftdi_determine_type(struct usb_serial_port *port)
1483 {
1484 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1485 	struct usb_serial *serial = port->serial;
1486 	struct usb_device *udev = serial->dev;
1487 	unsigned version;
1488 	unsigned interfaces;
1489 
1490 	/* Assume it is not the original SIO device for now. */
1491 	priv->baud_base = 48000000 / 2;
1492 
1493 	version = le16_to_cpu(udev->descriptor.bcdDevice);
1494 	interfaces = udev->actconfig->desc.bNumInterfaces;
1495 	dev_dbg(&port->dev, "%s: bcdDevice = 0x%x, bNumInterfaces = %u\n", __func__,
1496 		version, interfaces);
1497 	if (interfaces > 1) {
1498 		int inter;
1499 
1500 		/* Multiple interfaces.*/
1501 		if (version == 0x0800) {
1502 			priv->chip_type = FT4232H;
1503 			/* Hi-speed - baud clock runs at 120MHz */
1504 			priv->baud_base = 120000000 / 2;
1505 		} else if (version == 0x0700) {
1506 			priv->chip_type = FT2232H;
1507 			/* Hi-speed - baud clock runs at 120MHz */
1508 			priv->baud_base = 120000000 / 2;
1509 		} else
1510 			priv->chip_type = FT2232C;
1511 
1512 		/* Determine interface code. */
1513 		inter = serial->interface->altsetting->desc.bInterfaceNumber;
1514 		if (inter == 0) {
1515 			priv->interface = INTERFACE_A;
1516 		} else  if (inter == 1) {
1517 			priv->interface = INTERFACE_B;
1518 		} else  if (inter == 2) {
1519 			priv->interface = INTERFACE_C;
1520 		} else  if (inter == 3) {
1521 			priv->interface = INTERFACE_D;
1522 		}
1523 		/* BM-type devices have a bug where bcdDevice gets set
1524 		 * to 0x200 when iSerialNumber is 0.  */
1525 		if (version < 0x500) {
1526 			dev_dbg(&port->dev,
1527 				"%s: something fishy - bcdDevice too low for multi-interface device\n",
1528 				__func__);
1529 		}
1530 	} else if (version < 0x200) {
1531 		/* Old device.  Assume it's the original SIO. */
1532 		priv->chip_type = SIO;
1533 		priv->baud_base = 12000000 / 16;
1534 	} else if (version < 0x400) {
1535 		/* Assume it's an FT8U232AM (or FT8U245AM) */
1536 		/* (It might be a BM because of the iSerialNumber bug,
1537 		 * but it will still work as an AM device.) */
1538 		priv->chip_type = FT8U232AM;
1539 	} else if (version < 0x600) {
1540 		/* Assume it's an FT232BM (or FT245BM) */
1541 		priv->chip_type = FT232BM;
1542 	} else if (version < 0x900) {
1543 		/* Assume it's an FT232RL */
1544 		priv->chip_type = FT232RL;
1545 	} else if (version < 0x1000) {
1546 		/* Assume it's an FT232H */
1547 		priv->chip_type = FT232H;
1548 	} else {
1549 		/* Assume it's an FT-X series device */
1550 		priv->chip_type = FTX;
1551 	}
1552 
1553 	dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1554 }
1555 
1556 
1557 /*
1558  * Determine the maximum packet size for the device. This depends on the chip
1559  * type and the USB host capabilities. The value should be obtained from the
1560  * device descriptor as the chip will use the appropriate values for the host.
1561  */
1562 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1563 {
1564 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1565 	struct usb_interface *interface = port->serial->interface;
1566 	struct usb_endpoint_descriptor *ep_desc;
1567 	unsigned num_endpoints;
1568 	unsigned i;
1569 
1570 	num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1571 	if (!num_endpoints)
1572 		return;
1573 
1574 	/*
1575 	 * NOTE: Some customers have programmed FT232R/FT245R devices
1576 	 * with an endpoint size of 0 - not good. In this case, we
1577 	 * want to override the endpoint descriptor setting and use a
1578 	 * value of 64 for wMaxPacketSize.
1579 	 */
1580 	for (i = 0; i < num_endpoints; i++) {
1581 		ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1582 		if (!ep_desc->wMaxPacketSize) {
1583 			ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1584 			dev_warn(&port->dev, "Overriding wMaxPacketSize on endpoint %d\n",
1585 					usb_endpoint_num(ep_desc));
1586 		}
1587 	}
1588 
1589 	/* Set max packet size based on last descriptor. */
1590 	priv->max_packet_size = usb_endpoint_maxp(ep_desc);
1591 }
1592 
1593 
1594 /*
1595  * ***************************************************************************
1596  * Sysfs Attribute
1597  * ***************************************************************************
1598  */
1599 
1600 static ssize_t latency_timer_show(struct device *dev,
1601 				  struct device_attribute *attr, char *buf)
1602 {
1603 	struct usb_serial_port *port = to_usb_serial_port(dev);
1604 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1605 	if (priv->flags & ASYNC_LOW_LATENCY)
1606 		return sprintf(buf, "1\n");
1607 	else
1608 		return sprintf(buf, "%i\n", priv->latency);
1609 }
1610 
1611 /* Write a new value of the latency timer, in units of milliseconds. */
1612 static ssize_t latency_timer_store(struct device *dev,
1613 				   struct device_attribute *attr,
1614 				   const char *valbuf, size_t count)
1615 {
1616 	struct usb_serial_port *port = to_usb_serial_port(dev);
1617 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1618 	int v = simple_strtoul(valbuf, NULL, 10);
1619 	int rv;
1620 
1621 	priv->latency = v;
1622 	rv = write_latency_timer(port);
1623 	if (rv < 0)
1624 		return -EIO;
1625 	return count;
1626 }
1627 static DEVICE_ATTR_RW(latency_timer);
1628 
1629 /* Write an event character directly to the FTDI register.  The ASCII
1630    value is in the low 8 bits, with the enable bit in the 9th bit. */
1631 static ssize_t store_event_char(struct device *dev,
1632 	struct device_attribute *attr, const char *valbuf, size_t count)
1633 {
1634 	struct usb_serial_port *port = to_usb_serial_port(dev);
1635 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1636 	struct usb_device *udev = port->serial->dev;
1637 	int v = simple_strtoul(valbuf, NULL, 10);
1638 	int rv;
1639 
1640 	dev_dbg(&port->dev, "%s: setting event char = %i\n", __func__, v);
1641 
1642 	rv = usb_control_msg(udev,
1643 			     usb_sndctrlpipe(udev, 0),
1644 			     FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1645 			     FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1646 			     v, priv->interface,
1647 			     NULL, 0, WDR_TIMEOUT);
1648 	if (rv < 0) {
1649 		dev_dbg(&port->dev, "Unable to write event character: %i\n", rv);
1650 		return -EIO;
1651 	}
1652 
1653 	return count;
1654 }
1655 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1656 
1657 static int create_sysfs_attrs(struct usb_serial_port *port)
1658 {
1659 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1660 	int retval = 0;
1661 
1662 	/* XXX I've no idea if the original SIO supports the event_char
1663 	 * sysfs parameter, so I'm playing it safe.  */
1664 	if (priv->chip_type != SIO) {
1665 		dev_dbg(&port->dev, "sysfs attributes for %s\n", ftdi_chip_name[priv->chip_type]);
1666 		retval = device_create_file(&port->dev, &dev_attr_event_char);
1667 		if ((!retval) &&
1668 		    (priv->chip_type == FT232BM ||
1669 		     priv->chip_type == FT2232C ||
1670 		     priv->chip_type == FT232RL ||
1671 		     priv->chip_type == FT2232H ||
1672 		     priv->chip_type == FT4232H ||
1673 		     priv->chip_type == FT232H ||
1674 		     priv->chip_type == FTX)) {
1675 			retval = device_create_file(&port->dev,
1676 						    &dev_attr_latency_timer);
1677 		}
1678 	}
1679 	return retval;
1680 }
1681 
1682 static void remove_sysfs_attrs(struct usb_serial_port *port)
1683 {
1684 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1685 
1686 	/* XXX see create_sysfs_attrs */
1687 	if (priv->chip_type != SIO) {
1688 		device_remove_file(&port->dev, &dev_attr_event_char);
1689 		if (priv->chip_type == FT232BM ||
1690 		    priv->chip_type == FT2232C ||
1691 		    priv->chip_type == FT232RL ||
1692 		    priv->chip_type == FT2232H ||
1693 		    priv->chip_type == FT4232H ||
1694 		    priv->chip_type == FT232H ||
1695 		    priv->chip_type == FTX) {
1696 			device_remove_file(&port->dev, &dev_attr_latency_timer);
1697 		}
1698 	}
1699 
1700 }
1701 
1702 /*
1703  * ***************************************************************************
1704  * FTDI driver specific functions
1705  * ***************************************************************************
1706  */
1707 
1708 /* Probe function to check for special devices */
1709 static int ftdi_sio_probe(struct usb_serial *serial,
1710 					const struct usb_device_id *id)
1711 {
1712 	struct ftdi_sio_quirk *quirk =
1713 				(struct ftdi_sio_quirk *)id->driver_info;
1714 
1715 	if (quirk && quirk->probe) {
1716 		int ret = quirk->probe(serial);
1717 		if (ret != 0)
1718 			return ret;
1719 	}
1720 
1721 	usb_set_serial_data(serial, (void *)id->driver_info);
1722 
1723 	return 0;
1724 }
1725 
1726 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1727 {
1728 	struct ftdi_private *priv;
1729 	struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1730 
1731 
1732 	priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1733 	if (!priv)
1734 		return -ENOMEM;
1735 
1736 	mutex_init(&priv->cfg_lock);
1737 
1738 	priv->flags = ASYNC_LOW_LATENCY;
1739 
1740 	if (quirk && quirk->port_probe)
1741 		quirk->port_probe(priv);
1742 
1743 	usb_set_serial_port_data(port, priv);
1744 
1745 	ftdi_determine_type(port);
1746 	ftdi_set_max_packet_size(port);
1747 	if (read_latency_timer(port) < 0)
1748 		priv->latency = 16;
1749 	write_latency_timer(port);
1750 	create_sysfs_attrs(port);
1751 	return 0;
1752 }
1753 
1754 /* Setup for the USB-UIRT device, which requires hardwired
1755  * baudrate (38400 gets mapped to 312500) */
1756 /* Called from usbserial:serial_probe */
1757 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1758 {
1759 	priv->flags |= ASYNC_SPD_CUST;
1760 	priv->custom_divisor = 77;
1761 	priv->force_baud = 38400;
1762 }
1763 
1764 /* Setup for the HE-TIRA1 device, which requires hardwired
1765  * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled.  */
1766 
1767 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1768 {
1769 	priv->flags |= ASYNC_SPD_CUST;
1770 	priv->custom_divisor = 240;
1771 	priv->force_baud = 38400;
1772 	priv->force_rtscts = 1;
1773 }
1774 
1775 /*
1776  * Module parameter to control latency timer for NDI FTDI-based USB devices.
1777  * If this value is not set in /etc/modprobe.d/ its value will be set
1778  * to 1ms.
1779  */
1780 static int ndi_latency_timer = 1;
1781 
1782 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1783  * baudrate (19200 gets mapped to 1200000).
1784  *
1785  * Called from usbserial:serial_probe.
1786  */
1787 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1788 {
1789 	struct usb_device *udev = serial->dev;
1790 	int latency = ndi_latency_timer;
1791 
1792 	if (latency == 0)
1793 		latency = 1;
1794 	if (latency > 99)
1795 		latency = 99;
1796 
1797 	dev_dbg(&udev->dev, "%s setting NDI device latency to %d\n", __func__, latency);
1798 	dev_info(&udev->dev, "NDI device with a latency value of %d\n", latency);
1799 
1800 	/* FIXME: errors are not returned */
1801 	usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1802 				FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1803 				FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1804 				latency, 0, NULL, 0, WDR_TIMEOUT);
1805 	return 0;
1806 }
1807 
1808 /*
1809  * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1810  * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1811  * userspace using openocd.
1812  */
1813 static int ftdi_jtag_probe(struct usb_serial *serial)
1814 {
1815 	struct usb_device *udev = serial->dev;
1816 	struct usb_interface *interface = serial->interface;
1817 
1818 	if (interface == udev->actconfig->interface[0]) {
1819 		dev_info(&udev->dev,
1820 			 "Ignoring serial port reserved for JTAG\n");
1821 		return -ENODEV;
1822 	}
1823 
1824 	return 0;
1825 }
1826 
1827 static int ftdi_8u2232c_probe(struct usb_serial *serial)
1828 {
1829 	struct usb_device *udev = serial->dev;
1830 
1831 	if ((udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems")) ||
1832 	    (udev->product && !strcmp(udev->product, "BeagleBone/XDS100V2")))
1833 		return ftdi_jtag_probe(serial);
1834 
1835 	return 0;
1836 }
1837 
1838 /*
1839  * First two ports on JTAG adaptors using an FT4232 such as STMicroelectronics's
1840  * ST Micro Connect Lite are reserved for JTAG or other non-UART interfaces and
1841  * can be accessed from userspace.
1842  * The next two ports are enabled as UARTs by default, where port 2 is
1843  * a conventional RS-232 UART.
1844  */
1845 static int ftdi_stmclite_probe(struct usb_serial *serial)
1846 {
1847 	struct usb_device *udev = serial->dev;
1848 	struct usb_interface *interface = serial->interface;
1849 
1850 	if (interface == udev->actconfig->interface[0] ||
1851 	    interface == udev->actconfig->interface[1]) {
1852 		dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n");
1853 		return -ENODEV;
1854 	}
1855 
1856 	return 0;
1857 }
1858 
1859 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1860 {
1861 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1862 
1863 	remove_sysfs_attrs(port);
1864 
1865 	kfree(priv);
1866 
1867 	return 0;
1868 }
1869 
1870 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1871 {
1872 	struct usb_device *dev = port->serial->dev;
1873 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1874 
1875 	/* No error checking for this (will get errors later anyway) */
1876 	/* See ftdi_sio.h for description of what is reset */
1877 	usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1878 			FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1879 			FTDI_SIO_RESET_SIO,
1880 			priv->interface, NULL, 0, WDR_TIMEOUT);
1881 
1882 	/* Termios defaults are set by usb_serial_init. We don't change
1883 	   port->tty->termios - this would lose speed settings, etc.
1884 	   This is same behaviour as serial.c/rs_open() - Kuba */
1885 
1886 	/* ftdi_set_termios  will send usb control messages */
1887 	if (tty)
1888 		ftdi_set_termios(tty, port, NULL);
1889 
1890 	return usb_serial_generic_open(tty, port);
1891 }
1892 
1893 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1894 {
1895 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1896 
1897 	/* Disable flow control */
1898 	if (!on) {
1899 		if (usb_control_msg(port->serial->dev,
1900 			    usb_sndctrlpipe(port->serial->dev, 0),
1901 			    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1902 			    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1903 			    0, priv->interface, NULL, 0,
1904 			    WDR_TIMEOUT) < 0) {
1905 			dev_err(&port->dev, "error from flowcontrol urb\n");
1906 		}
1907 	}
1908 	/* drop RTS and DTR */
1909 	if (on)
1910 		set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1911 	else
1912 		clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1913 }
1914 
1915 /* The SIO requires the first byte to have:
1916  *  B0 1
1917  *  B1 0
1918  *  B2..7 length of message excluding byte 0
1919  *
1920  * The new devices do not require this byte
1921  */
1922 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
1923 						void *dest, size_t size)
1924 {
1925 	struct ftdi_private *priv;
1926 	int count;
1927 	unsigned long flags;
1928 
1929 	priv = usb_get_serial_port_data(port);
1930 
1931 	if (priv->chip_type == SIO) {
1932 		unsigned char *buffer = dest;
1933 		int i, len, c;
1934 
1935 		count = 0;
1936 		spin_lock_irqsave(&port->lock, flags);
1937 		for (i = 0; i < size - 1; i += priv->max_packet_size) {
1938 			len = min_t(int, size - i, priv->max_packet_size) - 1;
1939 			c = kfifo_out(&port->write_fifo, &buffer[i + 1], len);
1940 			if (!c)
1941 				break;
1942 			port->icount.tx += c;
1943 			buffer[i] = (c << 2) + 1;
1944 			count += c + 1;
1945 		}
1946 		spin_unlock_irqrestore(&port->lock, flags);
1947 	} else {
1948 		count = kfifo_out_locked(&port->write_fifo, dest, size,
1949 								&port->lock);
1950 		port->icount.tx += count;
1951 	}
1952 
1953 	return count;
1954 }
1955 
1956 #define FTDI_RS_ERR_MASK (FTDI_RS_BI | FTDI_RS_PE | FTDI_RS_FE | FTDI_RS_OE)
1957 
1958 static int ftdi_process_packet(struct usb_serial_port *port,
1959 		struct ftdi_private *priv, char *packet, int len)
1960 {
1961 	int i;
1962 	char status;
1963 	char flag;
1964 	char *ch;
1965 
1966 	if (len < 2) {
1967 		dev_dbg(&port->dev, "malformed packet\n");
1968 		return 0;
1969 	}
1970 
1971 	/* Compare new line status to the old one, signal if different/
1972 	   N.B. packet may be processed more than once, but differences
1973 	   are only processed once.  */
1974 	status = packet[0] & FTDI_STATUS_B0_MASK;
1975 	if (status != priv->prev_status) {
1976 		char diff_status = status ^ priv->prev_status;
1977 
1978 		if (diff_status & FTDI_RS0_CTS)
1979 			port->icount.cts++;
1980 		if (diff_status & FTDI_RS0_DSR)
1981 			port->icount.dsr++;
1982 		if (diff_status & FTDI_RS0_RI)
1983 			port->icount.rng++;
1984 		if (diff_status & FTDI_RS0_RLSD) {
1985 			struct tty_struct *tty;
1986 
1987 			port->icount.dcd++;
1988 			tty = tty_port_tty_get(&port->port);
1989 			if (tty)
1990 				usb_serial_handle_dcd_change(port, tty,
1991 						status & FTDI_RS0_RLSD);
1992 			tty_kref_put(tty);
1993 		}
1994 
1995 		wake_up_interruptible(&port->port.delta_msr_wait);
1996 		priv->prev_status = status;
1997 	}
1998 
1999 	flag = TTY_NORMAL;
2000 	if (packet[1] & FTDI_RS_ERR_MASK) {
2001 		/* Break takes precedence over parity, which takes precedence
2002 		 * over framing errors */
2003 		if (packet[1] & FTDI_RS_BI) {
2004 			flag = TTY_BREAK;
2005 			port->icount.brk++;
2006 			usb_serial_handle_break(port);
2007 		} else if (packet[1] & FTDI_RS_PE) {
2008 			flag = TTY_PARITY;
2009 			port->icount.parity++;
2010 		} else if (packet[1] & FTDI_RS_FE) {
2011 			flag = TTY_FRAME;
2012 			port->icount.frame++;
2013 		}
2014 		/* Overrun is special, not associated with a char */
2015 		if (packet[1] & FTDI_RS_OE) {
2016 			port->icount.overrun++;
2017 			tty_insert_flip_char(&port->port, 0, TTY_OVERRUN);
2018 		}
2019 	}
2020 
2021 	/* save if the transmitter is empty or not */
2022 	if (packet[1] & FTDI_RS_TEMT)
2023 		priv->transmit_empty = 1;
2024 	else
2025 		priv->transmit_empty = 0;
2026 
2027 	len -= 2;
2028 	if (!len)
2029 		return 0;	/* status only */
2030 	port->icount.rx += len;
2031 	ch = packet + 2;
2032 
2033 	if (port->port.console && port->sysrq) {
2034 		for (i = 0; i < len; i++, ch++) {
2035 			if (!usb_serial_handle_sysrq_char(port, *ch))
2036 				tty_insert_flip_char(&port->port, *ch, flag);
2037 		}
2038 	} else {
2039 		tty_insert_flip_string_fixed_flag(&port->port, ch, flag, len);
2040 	}
2041 
2042 	return len;
2043 }
2044 
2045 static void ftdi_process_read_urb(struct urb *urb)
2046 {
2047 	struct usb_serial_port *port = urb->context;
2048 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2049 	char *data = (char *)urb->transfer_buffer;
2050 	int i;
2051 	int len;
2052 	int count = 0;
2053 
2054 	for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2055 		len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2056 		count += ftdi_process_packet(port, priv, &data[i], len);
2057 	}
2058 
2059 	if (count)
2060 		tty_flip_buffer_push(&port->port);
2061 }
2062 
2063 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2064 {
2065 	struct usb_serial_port *port = tty->driver_data;
2066 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2067 	__u16 urb_value;
2068 
2069 	/* break_state = -1 to turn on break, and 0 to turn off break */
2070 	/* see drivers/char/tty_io.c to see it used */
2071 	/* last_set_data_urb_value NEVER has the break bit set in it */
2072 
2073 	if (break_state)
2074 		urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2075 	else
2076 		urb_value = priv->last_set_data_urb_value;
2077 
2078 	if (usb_control_msg(port->serial->dev,
2079 			usb_sndctrlpipe(port->serial->dev, 0),
2080 			FTDI_SIO_SET_DATA_REQUEST,
2081 			FTDI_SIO_SET_DATA_REQUEST_TYPE,
2082 			urb_value , priv->interface,
2083 			NULL, 0, WDR_TIMEOUT) < 0) {
2084 		dev_err(&port->dev, "%s FAILED to enable/disable break state (state was %d)\n",
2085 			__func__, break_state);
2086 	}
2087 
2088 	dev_dbg(&port->dev, "%s break state is %d - urb is %d\n", __func__,
2089 		break_state, urb_value);
2090 
2091 }
2092 
2093 static bool ftdi_tx_empty(struct usb_serial_port *port)
2094 {
2095 	unsigned char buf[2];
2096 	int ret;
2097 
2098 	ret = ftdi_get_modem_status(port, buf);
2099 	if (ret == 2) {
2100 		if (!(buf[1] & FTDI_RS_TEMT))
2101 			return false;
2102 	}
2103 
2104 	return true;
2105 }
2106 
2107 /* old_termios contains the original termios settings and tty->termios contains
2108  * the new setting to be used
2109  * WARNING: set_termios calls this with old_termios in kernel space
2110  */
2111 static void ftdi_set_termios(struct tty_struct *tty,
2112 		struct usb_serial_port *port, struct ktermios *old_termios)
2113 {
2114 	struct usb_device *dev = port->serial->dev;
2115 	struct device *ddev = &port->dev;
2116 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2117 	struct ktermios *termios = &tty->termios;
2118 	unsigned int cflag = termios->c_cflag;
2119 	__u16 urb_value; /* will hold the new flags */
2120 
2121 	/* Added for xon/xoff support */
2122 	unsigned int iflag = termios->c_iflag;
2123 	unsigned char vstop;
2124 	unsigned char vstart;
2125 
2126 	/* Force baud rate if this device requires it, unless it is set to
2127 	   B0. */
2128 	if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2129 		dev_dbg(ddev, "%s: forcing baud rate for this device\n", __func__);
2130 		tty_encode_baud_rate(tty, priv->force_baud,
2131 					priv->force_baud);
2132 	}
2133 
2134 	/* Force RTS-CTS if this device requires it. */
2135 	if (priv->force_rtscts) {
2136 		dev_dbg(ddev, "%s: forcing rtscts for this device\n", __func__);
2137 		termios->c_cflag |= CRTSCTS;
2138 	}
2139 
2140 	/*
2141 	 * All FTDI UART chips are limited to CS7/8. We shouldn't pretend to
2142 	 * support CS5/6 and revert the CSIZE setting instead.
2143 	 *
2144 	 * CS5 however is used to control some smartcard readers which abuse
2145 	 * this limitation to switch modes. Original FTDI chips fall back to
2146 	 * eight data bits.
2147 	 *
2148 	 * TODO: Implement a quirk to only allow this with mentioned
2149 	 *       readers. One I know of (Argolis Smartreader V1)
2150 	 *       returns "USB smartcard server" as iInterface string.
2151 	 *       The vendor didn't bother with a custom VID/PID of
2152 	 *       course.
2153 	 */
2154 	if (C_CSIZE(tty) == CS6) {
2155 		dev_warn(ddev, "requested CSIZE setting not supported\n");
2156 
2157 		termios->c_cflag &= ~CSIZE;
2158 		if (old_termios)
2159 			termios->c_cflag |= old_termios->c_cflag & CSIZE;
2160 		else
2161 			termios->c_cflag |= CS8;
2162 	}
2163 
2164 	cflag = termios->c_cflag;
2165 
2166 	if (!old_termios)
2167 		goto no_skip;
2168 
2169 	if (old_termios->c_cflag == termios->c_cflag
2170 	    && old_termios->c_ispeed == termios->c_ispeed
2171 	    && old_termios->c_ospeed == termios->c_ospeed)
2172 		goto no_c_cflag_changes;
2173 
2174 	/* NOTE These routines can get interrupted by
2175 	   ftdi_sio_read_bulk_callback  - need to examine what this means -
2176 	   don't see any problems yet */
2177 
2178 	if ((old_termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)) ==
2179 	    (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)))
2180 		goto no_data_parity_stop_changes;
2181 
2182 no_skip:
2183 	/* Set number of data bits, parity, stop bits */
2184 
2185 	urb_value = 0;
2186 	urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2187 		      FTDI_SIO_SET_DATA_STOP_BITS_1);
2188 	if (cflag & PARENB) {
2189 		if (cflag & CMSPAR)
2190 			urb_value |= cflag & PARODD ?
2191 				     FTDI_SIO_SET_DATA_PARITY_MARK :
2192 				     FTDI_SIO_SET_DATA_PARITY_SPACE;
2193 		else
2194 			urb_value |= cflag & PARODD ?
2195 				     FTDI_SIO_SET_DATA_PARITY_ODD :
2196 				     FTDI_SIO_SET_DATA_PARITY_EVEN;
2197 	} else {
2198 		urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2199 	}
2200 	switch (cflag & CSIZE) {
2201 	case CS5:
2202 		dev_dbg(ddev, "Setting CS5 quirk\n");
2203 		break;
2204 	case CS7:
2205 		urb_value |= 7;
2206 		dev_dbg(ddev, "Setting CS7\n");
2207 		break;
2208 	default:
2209 	case CS8:
2210 		urb_value |= 8;
2211 		dev_dbg(ddev, "Setting CS8\n");
2212 		break;
2213 	}
2214 
2215 	/* This is needed by the break command since it uses the same command
2216 	   - but is or'ed with this value  */
2217 	priv->last_set_data_urb_value = urb_value;
2218 
2219 	if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2220 			    FTDI_SIO_SET_DATA_REQUEST,
2221 			    FTDI_SIO_SET_DATA_REQUEST_TYPE,
2222 			    urb_value , priv->interface,
2223 			    NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
2224 		dev_err(ddev, "%s FAILED to set databits/stopbits/parity\n",
2225 			__func__);
2226 	}
2227 
2228 	/* Now do the baudrate */
2229 no_data_parity_stop_changes:
2230 	if ((cflag & CBAUD) == B0) {
2231 		/* Disable flow control */
2232 		if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2233 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2234 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2235 				    0, priv->interface,
2236 				    NULL, 0, WDR_TIMEOUT) < 0) {
2237 			dev_err(ddev, "%s error from disable flowcontrol urb\n",
2238 				__func__);
2239 		}
2240 		/* Drop RTS and DTR */
2241 		clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2242 	} else {
2243 		/* set the baudrate determined before */
2244 		mutex_lock(&priv->cfg_lock);
2245 		if (change_speed(tty, port))
2246 			dev_err(ddev, "%s urb failed to set baudrate\n", __func__);
2247 		mutex_unlock(&priv->cfg_lock);
2248 		/* Ensure RTS and DTR are raised when baudrate changed from 0 */
2249 		if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
2250 			set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2251 	}
2252 
2253 	/* Set flow control */
2254 	/* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2255 no_c_cflag_changes:
2256 	if (cflag & CRTSCTS) {
2257 		dev_dbg(ddev, "%s Setting to CRTSCTS flow control\n", __func__);
2258 		if (usb_control_msg(dev,
2259 				    usb_sndctrlpipe(dev, 0),
2260 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2261 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2262 				    0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2263 				    NULL, 0, WDR_TIMEOUT) < 0) {
2264 			dev_err(ddev, "urb failed to set to rts/cts flow control\n");
2265 		}
2266 	} else {
2267 		/*
2268 		 * Xon/Xoff code
2269 		 *
2270 		 * Check the IXOFF status in the iflag component of the
2271 		 * termios structure. If IXOFF is not set, the pre-xon/xoff
2272 		 * code is executed.
2273 		 */
2274 		if (iflag & IXOFF) {
2275 			dev_dbg(ddev, "%s  request to enable xonxoff iflag=%04x\n",
2276 				__func__, iflag);
2277 			/* Try to enable the XON/XOFF on the ftdi_sio
2278 			 * Set the vstart and vstop -- could have been done up
2279 			 * above where a lot of other dereferencing is done but
2280 			 * that would be very inefficient as vstart and vstop
2281 			 * are not always needed.
2282 			 */
2283 			vstart = termios->c_cc[VSTART];
2284 			vstop = termios->c_cc[VSTOP];
2285 			urb_value = (vstop << 8) | (vstart);
2286 
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 					    urb_value , (FTDI_SIO_XON_XOFF_HS
2292 							 | priv->interface),
2293 					    NULL, 0, WDR_TIMEOUT) < 0) {
2294 				dev_err(&port->dev, "urb failed to set to "
2295 					"xon/xoff flow control\n");
2296 			}
2297 		} else {
2298 			/* else clause to only run if cflag ! CRTSCTS and iflag
2299 			 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2300 			 * stack - not by device */
2301 			dev_dbg(ddev, "%s Turning off hardware flow control\n", __func__);
2302 			if (usb_control_msg(dev,
2303 					    usb_sndctrlpipe(dev, 0),
2304 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2305 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2306 					    0, priv->interface,
2307 					    NULL, 0, WDR_TIMEOUT) < 0) {
2308 				dev_err(ddev, "urb failed to clear flow control\n");
2309 			}
2310 		}
2311 	}
2312 }
2313 
2314 /*
2315  * Get modem-control status.
2316  *
2317  * Returns the number of status bytes retrieved (device dependant), or
2318  * negative error code.
2319  */
2320 static int ftdi_get_modem_status(struct usb_serial_port *port,
2321 						unsigned char status[2])
2322 {
2323 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2324 	unsigned char *buf;
2325 	int len;
2326 	int ret;
2327 
2328 	buf = kmalloc(2, GFP_KERNEL);
2329 	if (!buf)
2330 		return -ENOMEM;
2331 	/*
2332 	 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2333 	 * the same format as the data returned from the in point.
2334 	 */
2335 	switch (priv->chip_type) {
2336 	case SIO:
2337 		len = 1;
2338 		break;
2339 	case FT8U232AM:
2340 	case FT232BM:
2341 	case FT2232C:
2342 	case FT232RL:
2343 	case FT2232H:
2344 	case FT4232H:
2345 	case FT232H:
2346 	case FTX:
2347 		len = 2;
2348 		break;
2349 	default:
2350 		ret = -EFAULT;
2351 		goto out;
2352 	}
2353 
2354 	ret = usb_control_msg(port->serial->dev,
2355 			usb_rcvctrlpipe(port->serial->dev, 0),
2356 			FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2357 			FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2358 			0, priv->interface,
2359 			buf, len, WDR_TIMEOUT);
2360 	if (ret < 0) {
2361 		dev_err(&port->dev, "failed to get modem status: %d\n", ret);
2362 		ret = usb_translate_errors(ret);
2363 		goto out;
2364 	}
2365 
2366 	status[0] = buf[0];
2367 	if (ret > 1)
2368 		status[1] = buf[1];
2369 	else
2370 		status[1] = 0;
2371 
2372 	dev_dbg(&port->dev, "%s - 0x%02x%02x\n", __func__, status[0],
2373 								status[1]);
2374 out:
2375 	kfree(buf);
2376 
2377 	return ret;
2378 }
2379 
2380 static int ftdi_tiocmget(struct tty_struct *tty)
2381 {
2382 	struct usb_serial_port *port = tty->driver_data;
2383 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2384 	unsigned char buf[2];
2385 	int ret;
2386 
2387 	ret = ftdi_get_modem_status(port, buf);
2388 	if (ret < 0)
2389 		return ret;
2390 
2391 	ret =	(buf[0] & FTDI_SIO_DSR_MASK  ? TIOCM_DSR : 0) |
2392 		(buf[0] & FTDI_SIO_CTS_MASK  ? TIOCM_CTS : 0) |
2393 		(buf[0] & FTDI_SIO_RI_MASK   ? TIOCM_RI  : 0) |
2394 		(buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD  : 0) |
2395 		priv->last_dtr_rts;
2396 
2397 	return ret;
2398 }
2399 
2400 static int ftdi_tiocmset(struct tty_struct *tty,
2401 			unsigned int set, unsigned int clear)
2402 {
2403 	struct usb_serial_port *port = tty->driver_data;
2404 
2405 	return update_mctrl(port, set, clear);
2406 }
2407 
2408 static int ftdi_ioctl(struct tty_struct *tty,
2409 					unsigned int cmd, unsigned long arg)
2410 {
2411 	struct usb_serial_port *port = tty->driver_data;
2412 
2413 	/* Based on code from acm.c and others */
2414 	switch (cmd) {
2415 
2416 	case TIOCGSERIAL: /* gets serial port data */
2417 		return get_serial_info(port,
2418 					(struct serial_struct __user *) arg);
2419 
2420 	case TIOCSSERIAL: /* sets serial port data */
2421 		return set_serial_info(tty, port,
2422 					(struct serial_struct __user *) arg);
2423 	case TIOCSERGETLSR:
2424 		return get_lsr_info(port, (struct serial_struct __user *)arg);
2425 		break;
2426 	default:
2427 		break;
2428 	}
2429 
2430 	return -ENOIOCTLCMD;
2431 }
2432 
2433 module_usb_serial_driver(serial_drivers, id_table_combined);
2434 
2435 MODULE_AUTHOR(DRIVER_AUTHOR);
2436 MODULE_DESCRIPTION(DRIVER_DESC);
2437 MODULE_LICENSE("GPL");
2438 
2439 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2440 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
2441