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USB: ftdi_sio: fix DTR/RTS line modes
[linux-2.6/kvm.git] / drivers / usb / serial / ftdi_sio.c
blob79dd1ae195e56263610c63c1d3da6e7bb71b1de5
1 /*
2 * USB FTDI SIO driver
3 *
4 * Copyright (C) 2009 - 2010
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 upto date testing info
21 * and extra documentation
22 *
23 * Change entries from 2004 and earlier can be found in versions of this
24 * file in kernel versions prior to the 2.6.24 release.
25 *
26 */
27
28 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
29 /* Thanx to FTDI for so kindly providing details of the protocol required */
30 /* to talk to the device */
31 /* Thanx to gkh and the rest of the usb dev group for all code I have
32 assimilated :-) */
33
34 #include <linux/kernel.h>
35 #include <linux/errno.h>
36 #include <linux/init.h>
37 #include <linux/slab.h>
38 #include <linux/tty.h>
39 #include <linux/tty_driver.h>
40 #include <linux/tty_flip.h>
41 #include <linux/module.h>
42 #include <linux/spinlock.h>
43 #include <linux/mutex.h>
44 #include <linux/uaccess.h>
45 #include <linux/usb.h>
46 #include <linux/serial.h>
47 #include <linux/usb/serial.h>
48 #include "ftdi_sio.h"
49 #include "ftdi_sio_ids.h"
50
51 /*
52 * Version Information
53 */
54 #define DRIVER_VERSION "v1.6.0"
55 #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>"
56 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
57
58 static int debug;
59 static __u16 vendor = FTDI_VID;
60 static __u16 product;
61
62 struct ftdi_private {
63 struct kref kref;
64 enum ftdi_chip_type chip_type;
65 /* type of device, either SIO or FT8U232AM */
66 int baud_base; /* baud base clock for divisor setting */
67 int custom_divisor; /* custom_divisor kludge, this is for
68 baud_base (different from what goes to the
69 chip!) */
70 __u16 last_set_data_urb_value ;
71 /* the last data state set - needed for doing
72 * a break
73 */
74 int flags; /* some ASYNC_xxxx flags are supported */
75 unsigned long last_dtr_rts; /* saved modem control outputs */
76 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
77 char prev_status, diff_status; /* Used for TIOCMIWAIT */
78 struct usb_serial_port *port;
79 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
80 (0 for FT232/245) */
81
82 speed_t force_baud; /* if non-zero, force the baud rate to
83 this value */
84 int force_rtscts; /* if non-zero, force RTS-CTS to always
85 be enabled */
86
87 unsigned int latency; /* latency setting in use */
88 unsigned short max_packet_size;
89 struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() and change_speed() */
90 };
91
92 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
93 struct ftdi_sio_quirk {
94 int (*probe)(struct usb_serial *);
95 /* Special settings for probed ports. */
96 void (*port_probe)(struct ftdi_private *);
97 };
98
99 static int ftdi_jtag_probe(struct usb_serial *serial);
100 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
101 static int ftdi_NDI_device_setup(struct usb_serial *serial);
102 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
103 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
104
105 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
106 .probe = ftdi_jtag_probe,
107 };
108
109 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
110 .probe = ftdi_mtxorb_hack_setup,
111 };
112
113 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
114 .probe = ftdi_NDI_device_setup,
115 };
116
117 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
118 .port_probe = ftdi_USB_UIRT_setup,
119 };
120
121 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
122 .port_probe = ftdi_HE_TIRA1_setup,
123 };
124
125 /*
126 * The 8U232AM has the same API as the sio except for:
127 * - it can support MUCH higher baudrates; up to:
128 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
129 * o 230400 at 12MHz
130 * so .. 8U232AM's baudrate setting codes are different
131 * - it has a two byte status code.
132 * - it returns characters every 16ms (the FTDI does it every 40ms)
133 *
134 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
135 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
136 * combinations in both tables.
137 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
138 * but I don't know if those ever went into mass production. [Ian Abbott]
139 */
140
141
142
143 /*
144 * Device ID not listed? Test via module params product/vendor or
145 * /sys/bus/usb/ftdi_sio/new_id, then send patch/report!
146 */
147 static struct usb_device_id id_table_combined [] = {
148 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_NXTCAM_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_ACTZWAVE_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
165 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
168 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
169 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
170 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
177 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
178 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
180 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
189 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
191 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
194 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
195 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
198 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
239 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
245 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
285 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
287 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
289 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
291 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
293 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
295 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
463 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
464 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
465 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
466 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
514 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
515 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
517 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
518 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
519 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
520 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
521 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
522 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
523 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
554 /*
555 * ELV devices:
556 */
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
578 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
579 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
580 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
581 { USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
582 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
583 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
584 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
586 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
587 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
588 { USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
589 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
590 { USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
592 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
593 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
594 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
595 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
596 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
597 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
598 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
599 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
600 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
601 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
603 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
604 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
605 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
606 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
607 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
610 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
612 { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
613 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
614 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
615 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
616 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
617 { USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
618 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
619 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
620 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
621 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
622 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
623 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
624 { USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
625 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
626 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
627 { USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
628 { USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
629 { USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
630 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
631 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
632 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
633 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
634 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
635 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
636 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
637 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
638 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
639 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
640 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
641 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
642 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
643 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
644 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
645 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
646 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
647 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
648 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
649 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
650 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
651 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
652 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
653 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
654 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
655 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
656 { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
657 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
658 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
659 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
660 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
661 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
663 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
664 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
665 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
666 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
667 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
668 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
669 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
670 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
671 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
672 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
673 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
674 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
675 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
676 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
677 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
678 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
679 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
680 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
681 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
682 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
683 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
684 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
685 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
686 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
687 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
688 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
689 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
690 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
691 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
692 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
693 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
694 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
695 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
696 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
697 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
698 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
699 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
700 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
701 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
702 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
703 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
704 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
705 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
706 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
707 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
708 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
709 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
710 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
711 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
712 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
713 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
714 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
715 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
716 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
717 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
718 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
719 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
720 { USB_DEVICE(ATMEL_VID, STK541_PID) },
721 { USB_DEVICE(DE_VID, STB_PID) },
722 { USB_DEVICE(DE_VID, WHT_PID) },
723 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
724 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
725 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
726 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
727 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
728 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
729 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
730 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
731 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
732 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
733 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
734 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
735 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
736 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
737 { USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
738 { USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
739 { USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
740 { USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
741 { }, /* Optional parameter entry */
742 { } /* Terminating entry */
743 };
744
745 MODULE_DEVICE_TABLE(usb, id_table_combined);
746
747 static struct usb_driver ftdi_driver = {
748 .name = "ftdi_sio",
749 .probe = usb_serial_probe,
750 .disconnect = usb_serial_disconnect,
751 .id_table = id_table_combined,
752 .no_dynamic_id = 1,
753 };
754
755 static const char *ftdi_chip_name[] = {
756 [SIO] = "SIO", /* the serial part of FT8U100AX */
757 [FT8U232AM] = "FT8U232AM",
758 [FT232BM] = "FT232BM",
759 [FT2232C] = "FT2232C",
760 [FT232RL] = "FT232RL",
761 [FT2232H] = "FT2232H",
762 [FT4232H] = "FT4232H"
763 };
764
765
766 /* Used for TIOCMIWAIT */
767 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
768 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
769 /* End TIOCMIWAIT */
770
771 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
772 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
773
774 /* function prototypes for a FTDI serial converter */
775 static int ftdi_sio_probe(struct usb_serial *serial,
776 const struct usb_device_id *id);
777 static int ftdi_sio_port_probe(struct usb_serial_port *port);
778 static int ftdi_sio_port_remove(struct usb_serial_port *port);
779 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
780 static void ftdi_close(struct usb_serial_port *port);
781 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
782 static void ftdi_process_read_urb(struct urb *urb);
783 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
784 void *dest, size_t size);
785 static void ftdi_set_termios(struct tty_struct *tty,
786 struct usb_serial_port *port, struct ktermios *old);
787 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
788 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
789 unsigned int set, unsigned int clear);
790 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
791 unsigned int cmd, unsigned long arg);
792 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
793
794 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
795 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
796 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
797 static __u32 ftdi_232bm_baud_to_divisor(int baud);
798 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
799 static __u32 ftdi_2232h_baud_to_divisor(int baud);
800
801 static struct usb_serial_driver ftdi_sio_device = {
802 .driver = {
803 .owner = THIS_MODULE,
804 .name = "ftdi_sio",
805 },
806 .description = "FTDI USB Serial Device",
807 .usb_driver = &ftdi_driver,
808 .id_table = id_table_combined,
809 .num_ports = 1,
810 .bulk_in_size = 512,
811 .bulk_out_size = 256,
812 .probe = ftdi_sio_probe,
813 .port_probe = ftdi_sio_port_probe,
814 .port_remove = ftdi_sio_port_remove,
815 .open = ftdi_open,
816 .close = ftdi_close,
817 .dtr_rts = ftdi_dtr_rts,
818 .throttle = usb_serial_generic_throttle,
819 .unthrottle = usb_serial_generic_unthrottle,
820 .process_read_urb = ftdi_process_read_urb,
821 .prepare_write_buffer = ftdi_prepare_write_buffer,
822 .tiocmget = ftdi_tiocmget,
823 .tiocmset = ftdi_tiocmset,
824 .ioctl = ftdi_ioctl,
825 .set_termios = ftdi_set_termios,
826 .break_ctl = ftdi_break_ctl,
827 };
828
829
830 #define WDR_TIMEOUT 5000 /* default urb timeout */
831 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
832
833 /* High and low are for DTR, RTS etc etc */
834 #define HIGH 1
835 #define LOW 0
836
837 /*
838 * ***************************************************************************
839 * Utility functions
840 * ***************************************************************************
841 */
842
843 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
844 {
845 unsigned short int divisor;
846 /* divisor shifted 3 bits to the left */
847 int divisor3 = base / 2 / baud;
848 if ((divisor3 & 0x7) == 7)
849 divisor3++; /* round x.7/8 up to x+1 */
850 divisor = divisor3 >> 3;
851 divisor3 &= 0x7;
852 if (divisor3 == 1)
853 divisor |= 0xc000;
854 else if (divisor3 >= 4)
855 divisor |= 0x4000;
856 else if (divisor3 != 0)
857 divisor |= 0x8000;
858 else if (divisor == 1)
859 divisor = 0; /* special case for maximum baud rate */
860 return divisor;
861 }
862
863 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
864 {
865 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
866 }
867
868 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
869 {
870 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
871 __u32 divisor;
872 /* divisor shifted 3 bits to the left */
873 int divisor3 = base / 2 / baud;
874 divisor = divisor3 >> 3;
875 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
876 /* Deal with special cases for highest baud rates. */
877 if (divisor == 1)
878 divisor = 0;
879 else if (divisor == 0x4001)
880 divisor = 1;
881 return divisor;
882 }
883
884 static __u32 ftdi_232bm_baud_to_divisor(int baud)
885 {
886 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
887 }
888
889 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
890 {
891 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
892 __u32 divisor;
893 int divisor3;
894
895 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
896 divisor3 = (base / 10 / baud) * 8;
897
898 divisor = divisor3 >> 3;
899 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
900 /* Deal with special cases for highest baud rates. */
901 if (divisor == 1)
902 divisor = 0;
903 else if (divisor == 0x4001)
904 divisor = 1;
905 /*
906 * Set this bit to turn off a divide by 2.5 on baud rate generator
907 * This enables baud rates up to 12Mbaud but cannot reach below 1200
908 * baud with this bit set
909 */
910 divisor |= 0x00020000;
911 return divisor;
912 }
913
914 static __u32 ftdi_2232h_baud_to_divisor(int baud)
915 {
916 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
917 }
918
919 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
920 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
921
922 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
923 unsigned int clear)
924 {
925 struct ftdi_private *priv = usb_get_serial_port_data(port);
926 unsigned urb_value;
927 int rv;
928
929 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
930 dbg("%s - DTR|RTS not being set|cleared", __func__);
931 return 0; /* no change */
932 }
933
934 clear &= ~set; /* 'set' takes precedence over 'clear' */
935 urb_value = 0;
936 if (clear & TIOCM_DTR)
937 urb_value |= FTDI_SIO_SET_DTR_LOW;
938 if (clear & TIOCM_RTS)
939 urb_value |= FTDI_SIO_SET_RTS_LOW;
940 if (set & TIOCM_DTR)
941 urb_value |= FTDI_SIO_SET_DTR_HIGH;
942 if (set & TIOCM_RTS)
943 urb_value |= FTDI_SIO_SET_RTS_HIGH;
944 rv = usb_control_msg(port->serial->dev,
945 usb_sndctrlpipe(port->serial->dev, 0),
946 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
947 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
948 urb_value, priv->interface,
949 NULL, 0, WDR_TIMEOUT);
950 if (rv < 0) {
951 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
952 __func__,
953 (set & TIOCM_DTR) ? "HIGH" :
954 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
955 (set & TIOCM_RTS) ? "HIGH" :
956 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
957 } else {
958 dbg("%s - DTR %s, RTS %s", __func__,
959 (set & TIOCM_DTR) ? "HIGH" :
960 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
961 (set & TIOCM_RTS) ? "HIGH" :
962 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
963 /* FIXME: locking on last_dtr_rts */
964 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
965 }
966 return rv;
967 }
968
969
970 static __u32 get_ftdi_divisor(struct tty_struct *tty,
971 struct usb_serial_port *port)
972 {
973 struct ftdi_private *priv = usb_get_serial_port_data(port);
974 __u32 div_value = 0;
975 int div_okay = 1;
976 int baud;
977
978 /*
979 * The logic involved in setting the baudrate can be cleanly split into
980 * 3 steps.
981 * 1. Standard baud rates are set in tty->termios->c_cflag
982 * 2. If these are not enough, you can set any speed using alt_speed as
983 * follows:
984 * - set tty->termios->c_cflag speed to B38400
985 * - set your real speed in tty->alt_speed; it gets ignored when
986 * alt_speed==0, (or)
987 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
988 * follows:
989 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
990 * this just sets alt_speed to (HI: 57600, VHI: 115200,
991 * SHI: 230400, WARP: 460800)
992 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
993 * 3. You can also set baud rate by setting custom divisor as follows
994 * - set tty->termios->c_cflag speed to B38400
995 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
996 * follows:
997 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
998 * o custom_divisor set to baud_base / your_new_baudrate
999 * ** Step 3 is done courtesy of code borrowed from serial.c
1000 * I should really spend some time and separate + move this common
1001 * code to serial.c, it is replicated in nearly every serial driver
1002 * you see.
1003 */
1004
1005 /* 1. Get the baud rate from the tty settings, this observes
1006 alt_speed hack */
1007
1008 baud = tty_get_baud_rate(tty);
1009 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1010
1011 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1012 if needed */
1013
1014 if (baud == 38400 &&
1015 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1016 (priv->custom_divisor)) {
1017 baud = priv->baud_base / priv->custom_divisor;
1018 dbg("%s - custom divisor %d sets baud rate to %d",
1019 __func__, priv->custom_divisor, baud);
1020 }
1021
1022 /* 3. Convert baudrate to device-specific divisor */
1023
1024 if (!baud)
1025 baud = 9600;
1026 switch (priv->chip_type) {
1027 case SIO: /* SIO chip */
1028 switch (baud) {
1029 case 300: div_value = ftdi_sio_b300; break;
1030 case 600: div_value = ftdi_sio_b600; break;
1031 case 1200: div_value = ftdi_sio_b1200; break;
1032 case 2400: div_value = ftdi_sio_b2400; break;
1033 case 4800: div_value = ftdi_sio_b4800; break;
1034 case 9600: div_value = ftdi_sio_b9600; break;
1035 case 19200: div_value = ftdi_sio_b19200; break;
1036 case 38400: div_value = ftdi_sio_b38400; break;
1037 case 57600: div_value = ftdi_sio_b57600; break;
1038 case 115200: div_value = ftdi_sio_b115200; break;
1039 } /* baud */
1040 if (div_value == 0) {
1041 dbg("%s - Baudrate (%d) requested is not supported",
1042 __func__, baud);
1043 div_value = ftdi_sio_b9600;
1044 baud = 9600;
1045 div_okay = 0;
1046 }
1047 break;
1048 case FT8U232AM: /* 8U232AM chip */
1049 if (baud <= 3000000) {
1050 div_value = ftdi_232am_baud_to_divisor(baud);
1051 } else {
1052 dbg("%s - Baud rate too high!", __func__);
1053 baud = 9600;
1054 div_value = ftdi_232am_baud_to_divisor(9600);
1055 div_okay = 0;
1056 }
1057 break;
1058 case FT232BM: /* FT232BM chip */
1059 case FT2232C: /* FT2232C chip */
1060 case FT232RL:
1061 if (baud <= 3000000) {
1062 __u16 product_id = le16_to_cpu(
1063 port->serial->dev->descriptor.idProduct);
1064 if (((FTDI_NDI_HUC_PID == product_id) ||
1065 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1066 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1067 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1068 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1069 (baud == 19200)) {
1070 baud = 1200000;
1071 }
1072 div_value = ftdi_232bm_baud_to_divisor(baud);
1073 } else {
1074 dbg("%s - Baud rate too high!", __func__);
1075 div_value = ftdi_232bm_baud_to_divisor(9600);
1076 div_okay = 0;
1077 baud = 9600;
1078 }
1079 break;
1080 case FT2232H: /* FT2232H chip */
1081 case FT4232H: /* FT4232H chip */
1082 if ((baud <= 12000000) & (baud >= 1200)) {
1083 div_value = ftdi_2232h_baud_to_divisor(baud);
1084 } else if (baud < 1200) {
1085 div_value = ftdi_232bm_baud_to_divisor(baud);
1086 } else {
1087 dbg("%s - Baud rate too high!", __func__);
1088 div_value = ftdi_232bm_baud_to_divisor(9600);
1089 div_okay = 0;
1090 baud = 9600;
1091 }
1092 break;
1093 } /* priv->chip_type */
1094
1095 if (div_okay) {
1096 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1097 __func__, baud, (unsigned long)div_value,
1098 ftdi_chip_name[priv->chip_type]);
1099 }
1100
1101 tty_encode_baud_rate(tty, baud, baud);
1102 return div_value;
1103 }
1104
1105 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1106 {
1107 struct ftdi_private *priv = usb_get_serial_port_data(port);
1108 __u16 urb_value;
1109 __u16 urb_index;
1110 __u32 urb_index_value;
1111 int rv;
1112
1113 urb_index_value = get_ftdi_divisor(tty, port);
1114 urb_value = (__u16)urb_index_value;
1115 urb_index = (__u16)(urb_index_value >> 16);
1116 if (priv->interface) { /* FT2232C */
1117 urb_index = (__u16)((urb_index << 8) | priv->interface);
1118 }
1119
1120 rv = usb_control_msg(port->serial->dev,
1121 usb_sndctrlpipe(port->serial->dev, 0),
1122 FTDI_SIO_SET_BAUDRATE_REQUEST,
1123 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1124 urb_value, urb_index,
1125 NULL, 0, WDR_SHORT_TIMEOUT);
1126 return rv;
1127 }
1128
1129 static int write_latency_timer(struct usb_serial_port *port)
1130 {
1131 struct ftdi_private *priv = usb_get_serial_port_data(port);
1132 struct usb_device *udev = port->serial->dev;
1133 int rv;
1134 int l = priv->latency;
1135
1136 if (priv->flags & ASYNC_LOW_LATENCY)
1137 l = 1;
1138
1139 dbg("%s: setting latency timer = %i", __func__, l);
1140
1141 rv = usb_control_msg(udev,
1142 usb_sndctrlpipe(udev, 0),
1143 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1144 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1145 l, priv->interface,
1146 NULL, 0, WDR_TIMEOUT);
1147 if (rv < 0)
1148 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1149 return rv;
1150 }
1151
1152 static int read_latency_timer(struct usb_serial_port *port)
1153 {
1154 struct ftdi_private *priv = usb_get_serial_port_data(port);
1155 struct usb_device *udev = port->serial->dev;
1156 unsigned char *buf;
1157 int rv;
1158
1159 dbg("%s", __func__);
1160
1161 buf = kmalloc(1, GFP_KERNEL);
1162 if (!buf)
1163 return -ENOMEM;
1164
1165 rv = usb_control_msg(udev,
1166 usb_rcvctrlpipe(udev, 0),
1167 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1168 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1169 0, priv->interface,
1170 buf, 1, WDR_TIMEOUT);
1171 if (rv < 0)
1172 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1173 else
1174 priv->latency = buf[0];
1175
1176 kfree(buf);
1177
1178 return rv;
1179 }
1180
1181 static int get_serial_info(struct usb_serial_port *port,
1182 struct serial_struct __user *retinfo)
1183 {
1184 struct ftdi_private *priv = usb_get_serial_port_data(port);
1185 struct serial_struct tmp;
1186
1187 if (!retinfo)
1188 return -EFAULT;
1189 memset(&tmp, 0, sizeof(tmp));
1190 tmp.flags = priv->flags;
1191 tmp.baud_base = priv->baud_base;
1192 tmp.custom_divisor = priv->custom_divisor;
1193 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1194 return -EFAULT;
1195 return 0;
1196 }
1197
1198 static int set_serial_info(struct tty_struct *tty,
1199 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1200 {
1201 struct ftdi_private *priv = usb_get_serial_port_data(port);
1202 struct serial_struct new_serial;
1203 struct ftdi_private old_priv;
1204
1205 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1206 return -EFAULT;
1207
1208 mutex_lock(&priv->cfg_lock);
1209 old_priv = *priv;
1210
1211 /* Do error checking and permission checking */
1212
1213 if (!capable(CAP_SYS_ADMIN)) {
1214 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1215 (priv->flags & ~ASYNC_USR_MASK))) {
1216 mutex_unlock(&priv->cfg_lock);
1217 return -EPERM;
1218 }
1219 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1220 (new_serial.flags & ASYNC_USR_MASK));
1221 priv->custom_divisor = new_serial.custom_divisor;
1222 goto check_and_exit;
1223 }
1224
1225 if ((new_serial.baud_base != priv->baud_base) &&
1226 (new_serial.baud_base < 9600)) {
1227 mutex_unlock(&priv->cfg_lock);
1228 return -EINVAL;
1229 }
1230
1231 /* Make the changes - these are privileged changes! */
1232
1233 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1234 (new_serial.flags & ASYNC_FLAGS));
1235 priv->custom_divisor = new_serial.custom_divisor;
1236
1237 write_latency_timer(port);
1238
1239 check_and_exit:
1240 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1241 (priv->flags & ASYNC_SPD_MASK)) {
1242 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1243 tty->alt_speed = 57600;
1244 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1245 tty->alt_speed = 115200;
1246 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1247 tty->alt_speed = 230400;
1248 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1249 tty->alt_speed = 460800;
1250 else
1251 tty->alt_speed = 0;
1252 }
1253 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1254 (priv->flags & ASYNC_SPD_MASK)) ||
1255 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1256 (old_priv.custom_divisor != priv->custom_divisor))) {
1257 change_speed(tty, port);
1258 mutex_unlock(&priv->cfg_lock);
1259 }
1260 else
1261 mutex_unlock(&priv->cfg_lock);
1262 return 0;
1263 }
1264
1265
1266 /* Determine type of FTDI chip based on USB config and descriptor. */
1267 static void ftdi_determine_type(struct usb_serial_port *port)
1268 {
1269 struct ftdi_private *priv = usb_get_serial_port_data(port);
1270 struct usb_serial *serial = port->serial;
1271 struct usb_device *udev = serial->dev;
1272 unsigned version;
1273 unsigned interfaces;
1274
1275 /* Assume it is not the original SIO device for now. */
1276 priv->baud_base = 48000000 / 2;
1277
1278 version = le16_to_cpu(udev->descriptor.bcdDevice);
1279 interfaces = udev->actconfig->desc.bNumInterfaces;
1280 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1281 version, interfaces);
1282 if (interfaces > 1) {
1283 int inter;
1284
1285 /* Multiple interfaces.*/
1286 if (version == 0x0800) {
1287 priv->chip_type = FT4232H;
1288 /* Hi-speed - baud clock runs at 120MHz */
1289 priv->baud_base = 120000000 / 2;
1290 } else if (version == 0x0700) {
1291 priv->chip_type = FT2232H;
1292 /* Hi-speed - baud clock runs at 120MHz */
1293 priv->baud_base = 120000000 / 2;
1294 } else
1295 priv->chip_type = FT2232C;
1296
1297 /* Determine interface code. */
1298 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1299 if (inter == 0) {
1300 priv->interface = INTERFACE_A;
1301 } else if (inter == 1) {
1302 priv->interface = INTERFACE_B;
1303 } else if (inter == 2) {
1304 priv->interface = INTERFACE_C;
1305 } else if (inter == 3) {
1306 priv->interface = INTERFACE_D;
1307 }
1308 /* BM-type devices have a bug where bcdDevice gets set
1309 * to 0x200 when iSerialNumber is 0. */
1310 if (version < 0x500) {
1311 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1312 __func__);
1313 }
1314 } else if (version < 0x200) {
1315 /* Old device. Assume it's the original SIO. */
1316 priv->chip_type = SIO;
1317 priv->baud_base = 12000000 / 16;
1318 } else if (version < 0x400) {
1319 /* Assume it's an FT8U232AM (or FT8U245AM) */
1320 /* (It might be a BM because of the iSerialNumber bug,
1321 * but it will still work as an AM device.) */
1322 priv->chip_type = FT8U232AM;
1323 } else if (version < 0x600) {
1324 /* Assume it's an FT232BM (or FT245BM) */
1325 priv->chip_type = FT232BM;
1326 } else {
1327 /* Assume it's an FT232R */
1328 priv->chip_type = FT232RL;
1329 }
1330 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1331 }
1332
1333
1334 /* Determine the maximum packet size for the device. This depends on the chip
1335 * type and the USB host capabilities. The value should be obtained from the
1336 * device descriptor as the chip will use the appropriate values for the host.*/
1337 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1338 {
1339 struct ftdi_private *priv = usb_get_serial_port_data(port);
1340 struct usb_serial *serial = port->serial;
1341 struct usb_device *udev = serial->dev;
1342
1343 struct usb_interface *interface = serial->interface;
1344 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1345
1346 unsigned num_endpoints;
1347 int i;
1348
1349 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1350 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1351
1352 /* NOTE: some customers have programmed FT232R/FT245R devices
1353 * with an endpoint size of 0 - not good. In this case, we
1354 * want to override the endpoint descriptor setting and use a
1355 * value of 64 for wMaxPacketSize */
1356 for (i = 0; i < num_endpoints; i++) {
1357 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1358 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1359 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1360 if (ep_desc->wMaxPacketSize == 0) {
1361 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1362 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1363 }
1364 }
1365
1366 /* set max packet size based on descriptor */
1367 priv->max_packet_size = ep_desc->wMaxPacketSize;
1368
1369 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1370 }
1371
1372
1373 /*
1374 * ***************************************************************************
1375 * Sysfs Attribute
1376 * ***************************************************************************
1377 */
1378
1379 static ssize_t show_latency_timer(struct device *dev,
1380 struct device_attribute *attr, char *buf)
1381 {
1382 struct usb_serial_port *port = to_usb_serial_port(dev);
1383 struct ftdi_private *priv = usb_get_serial_port_data(port);
1384 if (priv->flags & ASYNC_LOW_LATENCY)
1385 return sprintf(buf, "1\n");
1386 else
1387 return sprintf(buf, "%i\n", priv->latency);
1388 }
1389
1390
1391 /* Write a new value of the latency timer, in units of milliseconds. */
1392 static ssize_t store_latency_timer(struct device *dev,
1393 struct device_attribute *attr, const char *valbuf,
1394 size_t count)
1395 {
1396 struct usb_serial_port *port = to_usb_serial_port(dev);
1397 struct ftdi_private *priv = usb_get_serial_port_data(port);
1398 int v = simple_strtoul(valbuf, NULL, 10);
1399 int rv;
1400
1401 priv->latency = v;
1402 rv = write_latency_timer(port);
1403 if (rv < 0)
1404 return -EIO;
1405 return count;
1406 }
1407
1408 /* Write an event character directly to the FTDI register. The ASCII
1409 value is in the low 8 bits, with the enable bit in the 9th bit. */
1410 static ssize_t store_event_char(struct device *dev,
1411 struct device_attribute *attr, const char *valbuf, size_t count)
1412 {
1413 struct usb_serial_port *port = to_usb_serial_port(dev);
1414 struct ftdi_private *priv = usb_get_serial_port_data(port);
1415 struct usb_device *udev = port->serial->dev;
1416 int v = simple_strtoul(valbuf, NULL, 10);
1417 int rv;
1418
1419 dbg("%s: setting event char = %i", __func__, v);
1420
1421 rv = usb_control_msg(udev,
1422 usb_sndctrlpipe(udev, 0),
1423 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1424 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1425 v, priv->interface,
1426 NULL, 0, WDR_TIMEOUT);
1427 if (rv < 0) {
1428 dbg("Unable to write event character: %i", rv);
1429 return -EIO;
1430 }
1431
1432 return count;
1433 }
1434
1435 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1436 store_latency_timer);
1437 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1438
1439 static int create_sysfs_attrs(struct usb_serial_port *port)
1440 {
1441 struct ftdi_private *priv = usb_get_serial_port_data(port);
1442 int retval = 0;
1443
1444 dbg("%s", __func__);
1445
1446 /* XXX I've no idea if the original SIO supports the event_char
1447 * sysfs parameter, so I'm playing it safe. */
1448 if (priv->chip_type != SIO) {
1449 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1450 retval = device_create_file(&port->dev, &dev_attr_event_char);
1451 if ((!retval) &&
1452 (priv->chip_type == FT232BM ||
1453 priv->chip_type == FT2232C ||
1454 priv->chip_type == FT232RL ||
1455 priv->chip_type == FT2232H ||
1456 priv->chip_type == FT4232H)) {
1457 retval = device_create_file(&port->dev,
1458 &dev_attr_latency_timer);
1459 }
1460 }
1461 return retval;
1462 }
1463
1464 static void remove_sysfs_attrs(struct usb_serial_port *port)
1465 {
1466 struct ftdi_private *priv = usb_get_serial_port_data(port);
1467
1468 dbg("%s", __func__);
1469
1470 /* XXX see create_sysfs_attrs */
1471 if (priv->chip_type != SIO) {
1472 device_remove_file(&port->dev, &dev_attr_event_char);
1473 if (priv->chip_type == FT232BM ||
1474 priv->chip_type == FT2232C ||
1475 priv->chip_type == FT232RL ||
1476 priv->chip_type == FT2232H ||
1477 priv->chip_type == FT4232H) {
1478 device_remove_file(&port->dev, &dev_attr_latency_timer);
1479 }
1480 }
1481
1482 }
1483
1484 /*
1485 * ***************************************************************************
1486 * FTDI driver specific functions
1487 * ***************************************************************************
1488 */
1489
1490 /* Probe function to check for special devices */
1491 static int ftdi_sio_probe(struct usb_serial *serial,
1492 const struct usb_device_id *id)
1493 {
1494 struct ftdi_sio_quirk *quirk =
1495 (struct ftdi_sio_quirk *)id->driver_info;
1496
1497 if (quirk && quirk->probe) {
1498 int ret = quirk->probe(serial);
1499 if (ret != 0)
1500 return ret;
1501 }
1502
1503 usb_set_serial_data(serial, (void *)id->driver_info);
1504
1505 return 0;
1506 }
1507
1508 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1509 {
1510 struct ftdi_private *priv;
1511 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1512
1513
1514 dbg("%s", __func__);
1515
1516 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1517 if (!priv) {
1518 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1519 sizeof(struct ftdi_private));
1520 return -ENOMEM;
1521 }
1522
1523 kref_init(&priv->kref);
1524 mutex_init(&priv->cfg_lock);
1525 init_waitqueue_head(&priv->delta_msr_wait);
1526
1527 priv->flags = ASYNC_LOW_LATENCY;
1528
1529 if (quirk && quirk->port_probe)
1530 quirk->port_probe(priv);
1531
1532 priv->port = port;
1533 usb_set_serial_port_data(port, priv);
1534
1535 ftdi_determine_type(port);
1536 ftdi_set_max_packet_size(port);
1537 if (read_latency_timer(port) < 0)
1538 priv->latency = 16;
1539 create_sysfs_attrs(port);
1540 return 0;
1541 }
1542
1543 /* Setup for the USB-UIRT device, which requires hardwired
1544 * baudrate (38400 gets mapped to 312500) */
1545 /* Called from usbserial:serial_probe */
1546 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1547 {
1548 dbg("%s", __func__);
1549
1550 priv->flags |= ASYNC_SPD_CUST;
1551 priv->custom_divisor = 77;
1552 priv->force_baud = 38400;
1553 }
1554
1555 /* Setup for the HE-TIRA1 device, which requires hardwired
1556 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1557
1558 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1559 {
1560 dbg("%s", __func__);
1561
1562 priv->flags |= ASYNC_SPD_CUST;
1563 priv->custom_divisor = 240;
1564 priv->force_baud = 38400;
1565 priv->force_rtscts = 1;
1566 }
1567
1568 /*
1569 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1570 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1571 */
1572 static int ndi_latency_timer = 1;
1573
1574 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1575 * baudrate (19200 gets mapped to 1200000).
1576 *
1577 * Called from usbserial:serial_probe.
1578 */
1579 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1580 {
1581 struct usb_device *udev = serial->dev;
1582 int latency = ndi_latency_timer;
1583
1584 if (latency == 0)
1585 latency = 1;
1586 if (latency > 99)
1587 latency = 99;
1588
1589 dbg("%s setting NDI device latency to %d", __func__, latency);
1590 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1591
1592 /* FIXME: errors are not returned */
1593 usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1594 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1595 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1596 latency, 0, NULL, 0, WDR_TIMEOUT);
1597 return 0;
1598 }
1599
1600 /*
1601 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1602 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1603 * userspace using openocd.
1604 */
1605 static int ftdi_jtag_probe(struct usb_serial *serial)
1606 {
1607 struct usb_device *udev = serial->dev;
1608 struct usb_interface *interface = serial->interface;
1609
1610 dbg("%s", __func__);
1611
1612 if (interface == udev->actconfig->interface[0]) {
1613 dev_info(&udev->dev,
1614 "Ignoring serial port reserved for JTAG\n");
1615 return -ENODEV;
1616 }
1617
1618 return 0;
1619 }
1620
1621 /*
1622 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1623 * We have to correct it if we want to read from it.
1624 */
1625 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1626 {
1627 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1628 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1629
1630 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1631 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1632 dev_info(&serial->dev->dev,
1633 "Fixing invalid wMaxPacketSize on read pipe\n");
1634 }
1635
1636 return 0;
1637 }
1638
1639 static void ftdi_sio_priv_release(struct kref *k)
1640 {
1641 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1642
1643 kfree(priv);
1644 }
1645
1646 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1647 {
1648 struct ftdi_private *priv = usb_get_serial_port_data(port);
1649
1650 dbg("%s", __func__);
1651
1652 remove_sysfs_attrs(port);
1653
1654 kref_put(&priv->kref, ftdi_sio_priv_release);
1655
1656 return 0;
1657 }
1658
1659 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1660 {
1661 struct usb_device *dev = port->serial->dev;
1662 struct ftdi_private *priv = usb_get_serial_port_data(port);
1663 int result;
1664
1665 dbg("%s", __func__);
1666
1667 write_latency_timer(port);
1668
1669 /* No error checking for this (will get errors later anyway) */
1670 /* See ftdi_sio.h for description of what is reset */
1671 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1672 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1673 FTDI_SIO_RESET_SIO,
1674 priv->interface, NULL, 0, WDR_TIMEOUT);
1675
1676 /* Termios defaults are set by usb_serial_init. We don't change
1677 port->tty->termios - this would lose speed settings, etc.
1678 This is same behaviour as serial.c/rs_open() - Kuba */
1679
1680 /* ftdi_set_termios will send usb control messages */
1681 if (tty)
1682 ftdi_set_termios(tty, port, tty->termios);
1683
1684 /* Start reading from the device */
1685 result = usb_serial_generic_open(tty, port);
1686 if (!result)
1687 kref_get(&priv->kref);
1688
1689 return result;
1690 }
1691
1692 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1693 {
1694 struct ftdi_private *priv = usb_get_serial_port_data(port);
1695
1696 mutex_lock(&port->serial->disc_mutex);
1697 if (!port->serial->disconnected) {
1698 /* Disable flow control */
1699 if (!on && usb_control_msg(port->serial->dev,
1700 usb_sndctrlpipe(port->serial->dev, 0),
1701 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1702 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1703 0, priv->interface, NULL, 0,
1704 WDR_TIMEOUT) < 0) {
1705 dev_err(&port->dev, "error from flowcontrol urb\n");
1706 }
1707 /* drop RTS and DTR */
1708 if (on)
1709 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1710 else
1711 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1712 }
1713 mutex_unlock(&port->serial->disc_mutex);
1714 }
1715
1716 /*
1717 * usbserial:__serial_close only calls ftdi_close if the point is open
1718 *
1719 * This only gets called when it is the last close
1720 */
1721 static void ftdi_close(struct usb_serial_port *port)
1722 {
1723 struct ftdi_private *priv = usb_get_serial_port_data(port);
1724
1725 dbg("%s", __func__);
1726
1727 usb_serial_generic_close(port);
1728 kref_put(&priv->kref, ftdi_sio_priv_release);
1729 }
1730
1731 /* The SIO requires the first byte to have:
1732 * B0 1
1733 * B1 0
1734 * B2..7 length of message excluding byte 0
1735 *
1736 * The new devices do not require this byte
1737 */
1738 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
1739 void *dest, size_t size)
1740 {
1741 struct ftdi_private *priv;
1742 int count;
1743 unsigned long flags;
1744
1745 priv = usb_get_serial_port_data(port);
1746
1747 if (priv->chip_type == SIO) {
1748 unsigned char *buffer = dest;
1749 int i, len, c;
1750
1751 count = 0;
1752 spin_lock_irqsave(&port->lock, flags);
1753 for (i = 0; i < size - 1; i += priv->max_packet_size) {
1754 len = min_t(int, size - i, priv->max_packet_size) - 1;
1755 c = kfifo_out(&port->write_fifo, &buffer[i + 1], len);
1756 if (!c)
1757 break;
1758 buffer[i] = (c << 2) + 1;
1759 count += c + 1;
1760 }
1761 spin_unlock_irqrestore(&port->lock, flags);
1762 } else {
1763 count = kfifo_out_locked(&port->write_fifo, dest, size,
1764 &port->lock);
1765 }
1766
1767 return count;
1768 }
1769
1770 #define FTDI_RS_ERR_MASK (FTDI_RS_BI | FTDI_RS_PE | FTDI_RS_FE | FTDI_RS_OE)
1771
1772 static int ftdi_process_packet(struct tty_struct *tty,
1773 struct usb_serial_port *port, struct ftdi_private *priv,
1774 char *packet, int len)
1775 {
1776 int i;
1777 char status;
1778 char flag;
1779 char *ch;
1780
1781 dbg("%s - port %d", __func__, port->number);
1782
1783 if (len < 2) {
1784 dbg("malformed packet");
1785 return 0;
1786 }
1787
1788 /* Compare new line status to the old one, signal if different/
1789 N.B. packet may be processed more than once, but differences
1790 are only processed once. */
1791 status = packet[0] & FTDI_STATUS_B0_MASK;
1792 if (status != priv->prev_status) {
1793 priv->diff_status |= status ^ priv->prev_status;
1794 wake_up_interruptible(&priv->delta_msr_wait);
1795 priv->prev_status = status;
1796 }
1797
1798 flag = TTY_NORMAL;
1799 if (packet[1] & FTDI_RS_ERR_MASK) {
1800 /* Break takes precedence over parity, which takes precedence
1801 * over framing errors */
1802 if (packet[1] & FTDI_RS_BI) {
1803 flag = TTY_BREAK;
1804 usb_serial_handle_break(port);
1805 } else if (packet[1] & FTDI_RS_PE) {
1806 flag = TTY_PARITY;
1807 } else if (packet[1] & FTDI_RS_FE) {
1808 flag = TTY_FRAME;
1809 }
1810 /* Overrun is special, not associated with a char */
1811 if (packet[1] & FTDI_RS_OE)
1812 tty_insert_flip_char(tty, 0, TTY_OVERRUN);
1813 }
1814
1815 len -= 2;
1816 if (!len)
1817 return 0; /* status only */
1818 ch = packet + 2;
1819
1820 if (port->port.console && port->sysrq) {
1821 for (i = 0; i < len; i++, ch++) {
1822 if (!usb_serial_handle_sysrq_char(tty, port, *ch))
1823 tty_insert_flip_char(tty, *ch, flag);
1824 }
1825 } else {
1826 tty_insert_flip_string_fixed_flag(tty, ch, flag, len);
1827 }
1828
1829 return len;
1830 }
1831
1832 static void ftdi_process_read_urb(struct urb *urb)
1833 {
1834 struct usb_serial_port *port = urb->context;
1835 struct tty_struct *tty;
1836 struct ftdi_private *priv = usb_get_serial_port_data(port);
1837 char *data = (char *)urb->transfer_buffer;
1838 int i;
1839 int len;
1840 int count = 0;
1841
1842 tty = tty_port_tty_get(&port->port);
1843 if (!tty)
1844 return;
1845
1846 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
1847 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
1848 count += ftdi_process_packet(tty, port, priv, &data[i], len);
1849 }
1850
1851 if (count)
1852 tty_flip_buffer_push(tty);
1853 tty_kref_put(tty);
1854 }
1855
1856 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1857 {
1858 struct usb_serial_port *port = tty->driver_data;
1859 struct ftdi_private *priv = usb_get_serial_port_data(port);
1860 __u16 urb_value;
1861
1862 /* break_state = -1 to turn on break, and 0 to turn off break */
1863 /* see drivers/char/tty_io.c to see it used */
1864 /* last_set_data_urb_value NEVER has the break bit set in it */
1865
1866 if (break_state)
1867 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
1868 else
1869 urb_value = priv->last_set_data_urb_value;
1870
1871 if (usb_control_msg(port->serial->dev,
1872 usb_sndctrlpipe(port->serial->dev, 0),
1873 FTDI_SIO_SET_DATA_REQUEST,
1874 FTDI_SIO_SET_DATA_REQUEST_TYPE,
1875 urb_value , priv->interface,
1876 NULL, 0, WDR_TIMEOUT) < 0) {
1877 dev_err(&port->dev, "%s FAILED to enable/disable break state "
1878 "(state was %d)\n", __func__, break_state);
1879 }
1880
1881 dbg("%s break state is %d - urb is %d", __func__,
1882 break_state, urb_value);
1883
1884 }
1885
1886 /* old_termios contains the original termios settings and tty->termios contains
1887 * the new setting to be used
1888 * WARNING: set_termios calls this with old_termios in kernel space
1889 */
1890 static void ftdi_set_termios(struct tty_struct *tty,
1891 struct usb_serial_port *port, struct ktermios *old_termios)
1892 {
1893 struct usb_device *dev = port->serial->dev;
1894 struct ftdi_private *priv = usb_get_serial_port_data(port);
1895 struct ktermios *termios = tty->termios;
1896 unsigned int cflag = termios->c_cflag;
1897 __u16 urb_value; /* will hold the new flags */
1898
1899 /* Added for xon/xoff support */
1900 unsigned int iflag = termios->c_iflag;
1901 unsigned char vstop;
1902 unsigned char vstart;
1903
1904 dbg("%s", __func__);
1905
1906 /* Force baud rate if this device requires it, unless it is set to
1907 B0. */
1908 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
1909 dbg("%s: forcing baud rate for this device", __func__);
1910 tty_encode_baud_rate(tty, priv->force_baud,
1911 priv->force_baud);
1912 }
1913
1914 /* Force RTS-CTS if this device requires it. */
1915 if (priv->force_rtscts) {
1916 dbg("%s: forcing rtscts for this device", __func__);
1917 termios->c_cflag |= CRTSCTS;
1918 }
1919
1920 cflag = termios->c_cflag;
1921
1922 /* FIXME -For this cut I don't care if the line is really changing or
1923 not - so just do the change regardless - should be able to
1924 compare old_termios and tty->termios */
1925 /* NOTE These routines can get interrupted by
1926 ftdi_sio_read_bulk_callback - need to examine what this means -
1927 don't see any problems yet */
1928
1929 /* Set number of data bits, parity, stop bits */
1930
1931 urb_value = 0;
1932 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
1933 FTDI_SIO_SET_DATA_STOP_BITS_1);
1934 if (cflag & PARENB) {
1935 if (cflag & CMSPAR)
1936 urb_value |= cflag & PARODD ?
1937 FTDI_SIO_SET_DATA_PARITY_MARK :
1938 FTDI_SIO_SET_DATA_PARITY_SPACE;
1939 else
1940 urb_value |= cflag & PARODD ?
1941 FTDI_SIO_SET_DATA_PARITY_ODD :
1942 FTDI_SIO_SET_DATA_PARITY_EVEN;
1943 } else {
1944 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
1945 }
1946 if (cflag & CSIZE) {
1947 switch (cflag & CSIZE) {
1948 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
1949 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
1950 default:
1951 dev_err(&port->dev, "CSIZE was set but not CS7-CS8\n");
1952 }
1953 }
1954
1955 /* This is needed by the break command since it uses the same command
1956 - but is or'ed with this value */
1957 priv->last_set_data_urb_value = urb_value;
1958
1959 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1960 FTDI_SIO_SET_DATA_REQUEST,
1961 FTDI_SIO_SET_DATA_REQUEST_TYPE,
1962 urb_value , priv->interface,
1963 NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
1964 dev_err(&port->dev, "%s FAILED to set "
1965 "databits/stopbits/parity\n", __func__);
1966 }
1967
1968 /* Now do the baudrate */
1969 if ((cflag & CBAUD) == B0) {
1970 /* Disable flow control */
1971 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1972 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1973 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1974 0, priv->interface,
1975 NULL, 0, WDR_TIMEOUT) < 0) {
1976 dev_err(&port->dev,
1977 "%s error from disable flowcontrol urb\n",
1978 __func__);
1979 }
1980 /* Drop RTS and DTR */
1981 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1982 } else {
1983 /* set the baudrate determined before */
1984 mutex_lock(&priv->cfg_lock);
1985 if (change_speed(tty, port))
1986 dev_err(&port->dev, "%s urb failed to set baudrate\n",
1987 __func__);
1988 mutex_unlock(&priv->cfg_lock);
1989 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
1990 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
1991 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1992 }
1993
1994 /* Set flow control */
1995 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
1996 if (cflag & CRTSCTS) {
1997 dbg("%s Setting to CRTSCTS flow control", __func__);
1998 if (usb_control_msg(dev,
1999 usb_sndctrlpipe(dev, 0),
2000 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2001 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2002 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2003 NULL, 0, WDR_TIMEOUT) < 0) {
2004 dev_err(&port->dev,
2005 "urb failed to set to rts/cts flow control\n");
2006 }
2007
2008 /* raise DTR/RTS */
2009 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2010 } else {
2011 /*
2012 * Xon/Xoff code
2013 *
2014 * Check the IXOFF status in the iflag component of the
2015 * termios structure. If IXOFF is not set, the pre-xon/xoff
2016 * code is executed.
2017 */
2018 if (iflag & IXOFF) {
2019 dbg("%s request to enable xonxoff iflag=%04x",
2020 __func__, iflag);
2021 /* Try to enable the XON/XOFF on the ftdi_sio
2022 * Set the vstart and vstop -- could have been done up
2023 * above where a lot of other dereferencing is done but
2024 * that would be very inefficient as vstart and vstop
2025 * are not always needed.
2026 */
2027 vstart = termios->c_cc[VSTART];
2028 vstop = termios->c_cc[VSTOP];
2029 urb_value = (vstop << 8) | (vstart);
2030
2031 if (usb_control_msg(dev,
2032 usb_sndctrlpipe(dev, 0),
2033 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2034 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2035 urb_value , (FTDI_SIO_XON_XOFF_HS
2036 | priv->interface),
2037 NULL, 0, WDR_TIMEOUT) < 0) {
2038 dev_err(&port->dev, "urb failed to set to "
2039 "xon/xoff flow control\n");
2040 }
2041 } else {
2042 /* else clause to only run if cflag ! CRTSCTS and iflag
2043 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2044 * stack - not by device */
2045 dbg("%s Turning off hardware flow control", __func__);
2046 if (usb_control_msg(dev,
2047 usb_sndctrlpipe(dev, 0),
2048 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2049 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2050 0, priv->interface,
2051 NULL, 0, WDR_TIMEOUT) < 0) {
2052 dev_err(&port->dev,
2053 "urb failed to clear flow control\n");
2054 }
2055 }
2056
2057 /* lower DTR/RTS */
2058 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2059 }
2060 return;
2061 }
2062
2063 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2064 {
2065 struct usb_serial_port *port = tty->driver_data;
2066 struct ftdi_private *priv = usb_get_serial_port_data(port);
2067 unsigned char *buf;
2068 int len;
2069 int ret;
2070
2071 dbg("%s TIOCMGET", __func__);
2072
2073 buf = kmalloc(2, GFP_KERNEL);
2074 if (!buf)
2075 return -ENOMEM;
2076 /*
2077 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2078 * the same format as the data returned from the in point.
2079 */
2080 switch (priv->chip_type) {
2081 case SIO:
2082 len = 1;
2083 break;
2084 case FT8U232AM:
2085 case FT232BM:
2086 case FT2232C:
2087 case FT232RL:
2088 case FT2232H:
2089 case FT4232H:
2090 len = 2;
2091 break;
2092 default:
2093 ret = -EFAULT;
2094 goto out;
2095 }
2096
2097 ret = usb_control_msg(port->serial->dev,
2098 usb_rcvctrlpipe(port->serial->dev, 0),
2099 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2100 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2101 0, priv->interface,
2102 buf, len, WDR_TIMEOUT);
2103 if (ret < 0)
2104 goto out;
2105
2106 ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2107 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2108 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2109 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2110 priv->last_dtr_rts;
2111 out:
2112 kfree(buf);
2113 return ret;
2114 }
2115
2116 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2117 unsigned int set, unsigned int clear)
2118 {
2119 struct usb_serial_port *port = tty->driver_data;
2120 dbg("%s TIOCMSET", __func__);
2121 return update_mctrl(port, set, clear);
2122 }
2123
2124 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2125 unsigned int cmd, unsigned long arg)
2126 {
2127 struct usb_serial_port *port = tty->driver_data;
2128 struct ftdi_private *priv = usb_get_serial_port_data(port);
2129
2130 dbg("%s cmd 0x%04x", __func__, cmd);
2131
2132 /* Based on code from acm.c and others */
2133 switch (cmd) {
2134
2135 case TIOCGSERIAL: /* gets serial port data */
2136 return get_serial_info(port,
2137 (struct serial_struct __user *) arg);
2138
2139 case TIOCSSERIAL: /* sets serial port data */
2140 return set_serial_info(tty, port,
2141 (struct serial_struct __user *) arg);
2142
2143 /*
2144 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2145 * - mask passed in arg for lines of interest
2146 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2147 * Caller should use TIOCGICOUNT to see which one it was.
2148 *
2149 * This code is borrowed from linux/drivers/char/serial.c
2150 */
2151 case TIOCMIWAIT:
2152 while (priv != NULL) {
2153 interruptible_sleep_on(&priv->delta_msr_wait);
2154 /* see if a signal did it */
2155 if (signal_pending(current))
2156 return -ERESTARTSYS;
2157 else {
2158 char diff = priv->diff_status;
2159
2160 if (diff == 0)
2161 return -EIO; /* no change => error */
2162
2163 /* Consume all events */
2164 priv->diff_status = 0;
2165
2166 /* Return 0 if caller wanted to know about
2167 these bits */
2168 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2169 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2170 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2171 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2172 return 0;
2173 }
2174 /*
2175 * Otherwise caller can't care less about what
2176 * happened,and so we continue to wait for more
2177 * events.
2178 */
2179 }
2180 }
2181 return 0;
2182 default:
2183 break;
2184 }
2185 /* This is not necessarily an error - turns out the higher layers
2186 * will do some ioctls themselves (see comment above)
2187 */
2188 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2189 return -ENOIOCTLCMD;
2190 }
2191
2192 static int __init ftdi_init(void)
2193 {
2194 int retval;
2195
2196 dbg("%s", __func__);
2197 if (vendor > 0 && product > 0) {
2198 /* Add user specified VID/PID to reserved element of table. */
2199 int i;
2200 for (i = 0; id_table_combined[i].idVendor; i++)
2201 ;
2202 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2203 id_table_combined[i].idVendor = vendor;
2204 id_table_combined[i].idProduct = product;
2205 }
2206 retval = usb_serial_register(&ftdi_sio_device);
2207 if (retval)
2208 goto failed_sio_register;
2209 retval = usb_register(&ftdi_driver);
2210 if (retval)
2211 goto failed_usb_register;
2212
2213 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2214 DRIVER_DESC "\n");
2215 return 0;
2216 failed_usb_register:
2217 usb_serial_deregister(&ftdi_sio_device);
2218 failed_sio_register:
2219 return retval;
2220 }
2221
2222 static void __exit ftdi_exit(void)
2223 {
2224 dbg("%s", __func__);
2225
2226 usb_deregister(&ftdi_driver);
2227 usb_serial_deregister(&ftdi_sio_device);
2228 }
2229
2230
2231 module_init(ftdi_init);
2232 module_exit(ftdi_exit);
2233
2234 MODULE_AUTHOR(DRIVER_AUTHOR);
2235 MODULE_DESCRIPTION(DRIVER_DESC);
2236 MODULE_LICENSE("GPL");
2237
2238 module_param(debug, bool, S_IRUGO | S_IWUSR);
2239 MODULE_PARM_DESC(debug, "Debug enabled or not");
2240 module_param(vendor, ushort, 0);
2241 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2242 __MODULE_STRING(FTDI_VID)")");
2243 module_param(product, ushort, 0);
2244 MODULE_PARM_DESC(product, "User specified product ID");
2245
2246 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2247 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
kernel-based virtual machine