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USB: ftdi_sio: revert "USB: ftdi_sio: fix DTR/RTS line modes"
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / serial / ftdi_sio.c
blob42fea29637b32f144cb9d5144cd1c8be8b5d2621
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_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 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
180 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
181 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
183 { USB_DEVICE(FTDI_VID, FTDI_LENZ_LIUSB_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
191 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
193 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
194 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
195 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
198 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
199 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
200 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
201 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
202 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
243 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
249 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
289 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
291 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
293 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
295 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
297 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
299 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
463 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
464 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
465 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
466 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
467 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
468 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
469 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
470 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
514 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
515 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
516 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
517 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
518 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
519 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
521 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
522 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
523 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
524 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
525 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
526 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
527 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
558 /*
559 * ELV devices:
560 */
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
578 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
579 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
580 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
581 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
582 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
583 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
584 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
586 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
587 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
588 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
589 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
590 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
592 { USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
593 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
594 { USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
595 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
596 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
597 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
598 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
599 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
600 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
601 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
607 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
608 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
609 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
610 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
611 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
612 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
614 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
615 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
616 { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
617 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
618 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
619 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
620 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
621 { USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
622 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
623 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
624 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
625 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
626 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
627 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
628 { USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
629 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
630 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
631 { USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
632 { USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
633 { USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
634 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
635 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
636 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
637 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
638 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
639 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
640 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
641 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
642 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
643 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
644 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
645 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
646 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
647 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
648 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
649 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
650 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
651 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
652 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
653 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
654 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
655 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
656 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
657 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
658 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
659 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
660 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
661 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
663 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
664 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
665 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
666 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
667 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
668 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
669 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
670 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
671 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
672 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
673 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
674 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
675 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
676 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
677 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
678 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
679 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
680 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
681 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
682 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
683 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
684 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
685 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
686 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
687 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
688 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
689 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
690 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
691 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
692 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
693 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
694 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
695 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
696 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
697 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
698 { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_SERIAL_VX7_PID) },
699 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
700 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
701 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
702 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
703 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
704 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
705 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
706 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
707 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
708 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
709 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
710 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
711 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
712 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
713 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
714 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
715 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
716 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
717 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
718 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
719 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
720 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
721 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
722 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
723 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
724 { USB_DEVICE(ATMEL_VID, STK541_PID) },
725 { USB_DEVICE(DE_VID, STB_PID) },
726 { USB_DEVICE(DE_VID, WHT_PID) },
727 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
728 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
729 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
730 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
731 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
732 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
733 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
734 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
735 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
736 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
737 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
738 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
739 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
740 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
741 { USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
742 { USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
743 { USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
744 { USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
745 { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_ST_PID),
746 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
747 { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SLITE_PID),
748 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
749 { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH2_PID),
750 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
751 { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH4_PID),
752 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
753 { USB_DEVICE(FTDI_VID, SEGWAY_RMP200_PID) },
754 { USB_DEVICE(FTDI_VID, ACCESIO_COM4SM_PID) },
755 { USB_DEVICE(IONICS_VID, IONICS_PLUGCOMPUTER_PID),
756 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
757 { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_24_MASTER_WING_PID) },
758 { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_PC_WING_PID) },
759 { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_USB_DMX_PID) },
760 { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MIDI_TIMECODE_PID) },
761 { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MINI_WING_PID) },
762 { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MAXI_WING_PID) },
763 { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MEDIA_WING_PID) },
764 { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_WING_PID) },
765 { }, /* Optional parameter entry */
766 { } /* Terminating entry */
767 };
768
769 MODULE_DEVICE_TABLE(usb, id_table_combined);
770
771 static struct usb_driver ftdi_driver = {
772 .name = "ftdi_sio",
773 .probe = usb_serial_probe,
774 .disconnect = usb_serial_disconnect,
775 .id_table = id_table_combined,
776 .no_dynamic_id = 1,
777 };
778
779 static const char *ftdi_chip_name[] = {
780 [SIO] = "SIO", /* the serial part of FT8U100AX */
781 [FT8U232AM] = "FT8U232AM",
782 [FT232BM] = "FT232BM",
783 [FT2232C] = "FT2232C",
784 [FT232RL] = "FT232RL",
785 [FT2232H] = "FT2232H",
786 [FT4232H] = "FT4232H"
787 };
788
789
790 /* Used for TIOCMIWAIT */
791 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
792 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
793 /* End TIOCMIWAIT */
794
795 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
796 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
797
798 /* function prototypes for a FTDI serial converter */
799 static int ftdi_sio_probe(struct usb_serial *serial,
800 const struct usb_device_id *id);
801 static int ftdi_sio_port_probe(struct usb_serial_port *port);
802 static int ftdi_sio_port_remove(struct usb_serial_port *port);
803 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
804 static void ftdi_close(struct usb_serial_port *port);
805 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
806 static void ftdi_process_read_urb(struct urb *urb);
807 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
808 void *dest, size_t size);
809 static void ftdi_set_termios(struct tty_struct *tty,
810 struct usb_serial_port *port, struct ktermios *old);
811 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
812 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
813 unsigned int set, unsigned int clear);
814 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
815 unsigned int cmd, unsigned long arg);
816 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
817
818 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
819 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
820 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
821 static __u32 ftdi_232bm_baud_to_divisor(int baud);
822 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
823 static __u32 ftdi_2232h_baud_to_divisor(int baud);
824
825 static struct usb_serial_driver ftdi_sio_device = {
826 .driver = {
827 .owner = THIS_MODULE,
828 .name = "ftdi_sio",
829 },
830 .description = "FTDI USB Serial Device",
831 .usb_driver = &ftdi_driver,
832 .id_table = id_table_combined,
833 .num_ports = 1,
834 .bulk_in_size = 512,
835 .bulk_out_size = 256,
836 .probe = ftdi_sio_probe,
837 .port_probe = ftdi_sio_port_probe,
838 .port_remove = ftdi_sio_port_remove,
839 .open = ftdi_open,
840 .close = ftdi_close,
841 .dtr_rts = ftdi_dtr_rts,
842 .throttle = usb_serial_generic_throttle,
843 .unthrottle = usb_serial_generic_unthrottle,
844 .process_read_urb = ftdi_process_read_urb,
845 .prepare_write_buffer = ftdi_prepare_write_buffer,
846 .tiocmget = ftdi_tiocmget,
847 .tiocmset = ftdi_tiocmset,
848 .ioctl = ftdi_ioctl,
849 .set_termios = ftdi_set_termios,
850 .break_ctl = ftdi_break_ctl,
851 };
852
853
854 #define WDR_TIMEOUT 5000 /* default urb timeout */
855 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
856
857 /* High and low are for DTR, RTS etc etc */
858 #define HIGH 1
859 #define LOW 0
860
861 /*
862 * ***************************************************************************
863 * Utility functions
864 * ***************************************************************************
865 */
866
867 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
868 {
869 unsigned short int divisor;
870 /* divisor shifted 3 bits to the left */
871 int divisor3 = base / 2 / baud;
872 if ((divisor3 & 0x7) == 7)
873 divisor3++; /* round x.7/8 up to x+1 */
874 divisor = divisor3 >> 3;
875 divisor3 &= 0x7;
876 if (divisor3 == 1)
877 divisor |= 0xc000;
878 else if (divisor3 >= 4)
879 divisor |= 0x4000;
880 else if (divisor3 != 0)
881 divisor |= 0x8000;
882 else if (divisor == 1)
883 divisor = 0; /* special case for maximum baud rate */
884 return divisor;
885 }
886
887 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
888 {
889 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
890 }
891
892 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
893 {
894 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
895 __u32 divisor;
896 /* divisor shifted 3 bits to the left */
897 int divisor3 = base / 2 / baud;
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 return divisor;
906 }
907
908 static __u32 ftdi_232bm_baud_to_divisor(int baud)
909 {
910 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
911 }
912
913 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
914 {
915 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
916 __u32 divisor;
917 int divisor3;
918
919 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
920 divisor3 = (base / 10 / baud) * 8;
921
922 divisor = divisor3 >> 3;
923 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
924 /* Deal with special cases for highest baud rates. */
925 if (divisor == 1)
926 divisor = 0;
927 else if (divisor == 0x4001)
928 divisor = 1;
929 /*
930 * Set this bit to turn off a divide by 2.5 on baud rate generator
931 * This enables baud rates up to 12Mbaud but cannot reach below 1200
932 * baud with this bit set
933 */
934 divisor |= 0x00020000;
935 return divisor;
936 }
937
938 static __u32 ftdi_2232h_baud_to_divisor(int baud)
939 {
940 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
941 }
942
943 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
944 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
945
946 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
947 unsigned int clear)
948 {
949 struct ftdi_private *priv = usb_get_serial_port_data(port);
950 unsigned urb_value;
951 int rv;
952
953 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
954 dbg("%s - DTR|RTS not being set|cleared", __func__);
955 return 0; /* no change */
956 }
957
958 clear &= ~set; /* 'set' takes precedence over 'clear' */
959 urb_value = 0;
960 if (clear & TIOCM_DTR)
961 urb_value |= FTDI_SIO_SET_DTR_LOW;
962 if (clear & TIOCM_RTS)
963 urb_value |= FTDI_SIO_SET_RTS_LOW;
964 if (set & TIOCM_DTR)
965 urb_value |= FTDI_SIO_SET_DTR_HIGH;
966 if (set & TIOCM_RTS)
967 urb_value |= FTDI_SIO_SET_RTS_HIGH;
968 rv = usb_control_msg(port->serial->dev,
969 usb_sndctrlpipe(port->serial->dev, 0),
970 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
971 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
972 urb_value, priv->interface,
973 NULL, 0, WDR_TIMEOUT);
974 if (rv < 0) {
975 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
976 __func__,
977 (set & TIOCM_DTR) ? "HIGH" :
978 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
979 (set & TIOCM_RTS) ? "HIGH" :
980 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
981 } else {
982 dbg("%s - DTR %s, RTS %s", __func__,
983 (set & TIOCM_DTR) ? "HIGH" :
984 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
985 (set & TIOCM_RTS) ? "HIGH" :
986 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
987 /* FIXME: locking on last_dtr_rts */
988 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
989 }
990 return rv;
991 }
992
993
994 static __u32 get_ftdi_divisor(struct tty_struct *tty,
995 struct usb_serial_port *port)
996 {
997 struct ftdi_private *priv = usb_get_serial_port_data(port);
998 __u32 div_value = 0;
999 int div_okay = 1;
1000 int baud;
1001
1002 /*
1003 * The logic involved in setting the baudrate can be cleanly split into
1004 * 3 steps.
1005 * 1. Standard baud rates are set in tty->termios->c_cflag
1006 * 2. If these are not enough, you can set any speed using alt_speed as
1007 * follows:
1008 * - set tty->termios->c_cflag speed to B38400
1009 * - set your real speed in tty->alt_speed; it gets ignored when
1010 * alt_speed==0, (or)
1011 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1012 * follows:
1013 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1014 * this just sets alt_speed to (HI: 57600, VHI: 115200,
1015 * SHI: 230400, WARP: 460800)
1016 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1017 * 3. You can also set baud rate by setting custom divisor as follows
1018 * - set tty->termios->c_cflag speed to B38400
1019 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1020 * follows:
1021 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1022 * o custom_divisor set to baud_base / your_new_baudrate
1023 * ** Step 3 is done courtesy of code borrowed from serial.c
1024 * I should really spend some time and separate + move this common
1025 * code to serial.c, it is replicated in nearly every serial driver
1026 * you see.
1027 */
1028
1029 /* 1. Get the baud rate from the tty settings, this observes
1030 alt_speed hack */
1031
1032 baud = tty_get_baud_rate(tty);
1033 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1034
1035 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1036 if needed */
1037
1038 if (baud == 38400 &&
1039 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1040 (priv->custom_divisor)) {
1041 baud = priv->baud_base / priv->custom_divisor;
1042 dbg("%s - custom divisor %d sets baud rate to %d",
1043 __func__, priv->custom_divisor, baud);
1044 }
1045
1046 /* 3. Convert baudrate to device-specific divisor */
1047
1048 if (!baud)
1049 baud = 9600;
1050 switch (priv->chip_type) {
1051 case SIO: /* SIO chip */
1052 switch (baud) {
1053 case 300: div_value = ftdi_sio_b300; break;
1054 case 600: div_value = ftdi_sio_b600; break;
1055 case 1200: div_value = ftdi_sio_b1200; break;
1056 case 2400: div_value = ftdi_sio_b2400; break;
1057 case 4800: div_value = ftdi_sio_b4800; break;
1058 case 9600: div_value = ftdi_sio_b9600; break;
1059 case 19200: div_value = ftdi_sio_b19200; break;
1060 case 38400: div_value = ftdi_sio_b38400; break;
1061 case 57600: div_value = ftdi_sio_b57600; break;
1062 case 115200: div_value = ftdi_sio_b115200; break;
1063 } /* baud */
1064 if (div_value == 0) {
1065 dbg("%s - Baudrate (%d) requested is not supported",
1066 __func__, baud);
1067 div_value = ftdi_sio_b9600;
1068 baud = 9600;
1069 div_okay = 0;
1070 }
1071 break;
1072 case FT8U232AM: /* 8U232AM chip */
1073 if (baud <= 3000000) {
1074 div_value = ftdi_232am_baud_to_divisor(baud);
1075 } else {
1076 dbg("%s - Baud rate too high!", __func__);
1077 baud = 9600;
1078 div_value = ftdi_232am_baud_to_divisor(9600);
1079 div_okay = 0;
1080 }
1081 break;
1082 case FT232BM: /* FT232BM chip */
1083 case FT2232C: /* FT2232C chip */
1084 case FT232RL:
1085 if (baud <= 3000000) {
1086 __u16 product_id = le16_to_cpu(
1087 port->serial->dev->descriptor.idProduct);
1088 if (((FTDI_NDI_HUC_PID == product_id) ||
1089 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1090 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1091 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1092 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1093 (baud == 19200)) {
1094 baud = 1200000;
1095 }
1096 div_value = ftdi_232bm_baud_to_divisor(baud);
1097 } else {
1098 dbg("%s - Baud rate too high!", __func__);
1099 div_value = ftdi_232bm_baud_to_divisor(9600);
1100 div_okay = 0;
1101 baud = 9600;
1102 }
1103 break;
1104 case FT2232H: /* FT2232H chip */
1105 case FT4232H: /* FT4232H chip */
1106 if ((baud <= 12000000) & (baud >= 1200)) {
1107 div_value = ftdi_2232h_baud_to_divisor(baud);
1108 } else if (baud < 1200) {
1109 div_value = ftdi_232bm_baud_to_divisor(baud);
1110 } else {
1111 dbg("%s - Baud rate too high!", __func__);
1112 div_value = ftdi_232bm_baud_to_divisor(9600);
1113 div_okay = 0;
1114 baud = 9600;
1115 }
1116 break;
1117 } /* priv->chip_type */
1118
1119 if (div_okay) {
1120 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1121 __func__, baud, (unsigned long)div_value,
1122 ftdi_chip_name[priv->chip_type]);
1123 }
1124
1125 tty_encode_baud_rate(tty, baud, baud);
1126 return div_value;
1127 }
1128
1129 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1130 {
1131 struct ftdi_private *priv = usb_get_serial_port_data(port);
1132 __u16 urb_value;
1133 __u16 urb_index;
1134 __u32 urb_index_value;
1135 int rv;
1136
1137 urb_index_value = get_ftdi_divisor(tty, port);
1138 urb_value = (__u16)urb_index_value;
1139 urb_index = (__u16)(urb_index_value >> 16);
1140 if (priv->interface) { /* FT2232C */
1141 urb_index = (__u16)((urb_index << 8) | priv->interface);
1142 }
1143
1144 rv = usb_control_msg(port->serial->dev,
1145 usb_sndctrlpipe(port->serial->dev, 0),
1146 FTDI_SIO_SET_BAUDRATE_REQUEST,
1147 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1148 urb_value, urb_index,
1149 NULL, 0, WDR_SHORT_TIMEOUT);
1150 return rv;
1151 }
1152
1153 static int write_latency_timer(struct usb_serial_port *port)
1154 {
1155 struct ftdi_private *priv = usb_get_serial_port_data(port);
1156 struct usb_device *udev = port->serial->dev;
1157 int rv;
1158 int l = priv->latency;
1159
1160 if (priv->flags & ASYNC_LOW_LATENCY)
1161 l = 1;
1162
1163 dbg("%s: setting latency timer = %i", __func__, l);
1164
1165 rv = usb_control_msg(udev,
1166 usb_sndctrlpipe(udev, 0),
1167 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1168 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1169 l, priv->interface,
1170 NULL, 0, WDR_TIMEOUT);
1171 if (rv < 0)
1172 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1173 return rv;
1174 }
1175
1176 static int read_latency_timer(struct usb_serial_port *port)
1177 {
1178 struct ftdi_private *priv = usb_get_serial_port_data(port);
1179 struct usb_device *udev = port->serial->dev;
1180 unsigned char *buf;
1181 int rv;
1182
1183 dbg("%s", __func__);
1184
1185 buf = kmalloc(1, GFP_KERNEL);
1186 if (!buf)
1187 return -ENOMEM;
1188
1189 rv = usb_control_msg(udev,
1190 usb_rcvctrlpipe(udev, 0),
1191 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1192 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1193 0, priv->interface,
1194 buf, 1, WDR_TIMEOUT);
1195 if (rv < 0)
1196 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1197 else
1198 priv->latency = buf[0];
1199
1200 kfree(buf);
1201
1202 return rv;
1203 }
1204
1205 static int get_serial_info(struct usb_serial_port *port,
1206 struct serial_struct __user *retinfo)
1207 {
1208 struct ftdi_private *priv = usb_get_serial_port_data(port);
1209 struct serial_struct tmp;
1210
1211 if (!retinfo)
1212 return -EFAULT;
1213 memset(&tmp, 0, sizeof(tmp));
1214 tmp.flags = priv->flags;
1215 tmp.baud_base = priv->baud_base;
1216 tmp.custom_divisor = priv->custom_divisor;
1217 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1218 return -EFAULT;
1219 return 0;
1220 }
1221
1222 static int set_serial_info(struct tty_struct *tty,
1223 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1224 {
1225 struct ftdi_private *priv = usb_get_serial_port_data(port);
1226 struct serial_struct new_serial;
1227 struct ftdi_private old_priv;
1228
1229 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1230 return -EFAULT;
1231
1232 mutex_lock(&priv->cfg_lock);
1233 old_priv = *priv;
1234
1235 /* Do error checking and permission checking */
1236
1237 if (!capable(CAP_SYS_ADMIN)) {
1238 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1239 (priv->flags & ~ASYNC_USR_MASK))) {
1240 mutex_unlock(&priv->cfg_lock);
1241 return -EPERM;
1242 }
1243 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1244 (new_serial.flags & ASYNC_USR_MASK));
1245 priv->custom_divisor = new_serial.custom_divisor;
1246 goto check_and_exit;
1247 }
1248
1249 if ((new_serial.baud_base != priv->baud_base) &&
1250 (new_serial.baud_base < 9600)) {
1251 mutex_unlock(&priv->cfg_lock);
1252 return -EINVAL;
1253 }
1254
1255 /* Make the changes - these are privileged changes! */
1256
1257 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1258 (new_serial.flags & ASYNC_FLAGS));
1259 priv->custom_divisor = new_serial.custom_divisor;
1260
1261 write_latency_timer(port);
1262
1263 check_and_exit:
1264 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1265 (priv->flags & ASYNC_SPD_MASK)) {
1266 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1267 tty->alt_speed = 57600;
1268 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1269 tty->alt_speed = 115200;
1270 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1271 tty->alt_speed = 230400;
1272 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1273 tty->alt_speed = 460800;
1274 else
1275 tty->alt_speed = 0;
1276 }
1277 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1278 (priv->flags & ASYNC_SPD_MASK)) ||
1279 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1280 (old_priv.custom_divisor != priv->custom_divisor))) {
1281 change_speed(tty, port);
1282 mutex_unlock(&priv->cfg_lock);
1283 }
1284 else
1285 mutex_unlock(&priv->cfg_lock);
1286 return 0;
1287 }
1288
1289
1290 /* Determine type of FTDI chip based on USB config and descriptor. */
1291 static void ftdi_determine_type(struct usb_serial_port *port)
1292 {
1293 struct ftdi_private *priv = usb_get_serial_port_data(port);
1294 struct usb_serial *serial = port->serial;
1295 struct usb_device *udev = serial->dev;
1296 unsigned version;
1297 unsigned interfaces;
1298
1299 /* Assume it is not the original SIO device for now. */
1300 priv->baud_base = 48000000 / 2;
1301
1302 version = le16_to_cpu(udev->descriptor.bcdDevice);
1303 interfaces = udev->actconfig->desc.bNumInterfaces;
1304 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1305 version, interfaces);
1306 if (interfaces > 1) {
1307 int inter;
1308
1309 /* Multiple interfaces.*/
1310 if (version == 0x0800) {
1311 priv->chip_type = FT4232H;
1312 /* Hi-speed - baud clock runs at 120MHz */
1313 priv->baud_base = 120000000 / 2;
1314 } else if (version == 0x0700) {
1315 priv->chip_type = FT2232H;
1316 /* Hi-speed - baud clock runs at 120MHz */
1317 priv->baud_base = 120000000 / 2;
1318 } else
1319 priv->chip_type = FT2232C;
1320
1321 /* Determine interface code. */
1322 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1323 if (inter == 0) {
1324 priv->interface = INTERFACE_A;
1325 } else if (inter == 1) {
1326 priv->interface = INTERFACE_B;
1327 } else if (inter == 2) {
1328 priv->interface = INTERFACE_C;
1329 } else if (inter == 3) {
1330 priv->interface = INTERFACE_D;
1331 }
1332 /* BM-type devices have a bug where bcdDevice gets set
1333 * to 0x200 when iSerialNumber is 0. */
1334 if (version < 0x500) {
1335 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1336 __func__);
1337 }
1338 } else if (version < 0x200) {
1339 /* Old device. Assume it's the original SIO. */
1340 priv->chip_type = SIO;
1341 priv->baud_base = 12000000 / 16;
1342 } else if (version < 0x400) {
1343 /* Assume it's an FT8U232AM (or FT8U245AM) */
1344 /* (It might be a BM because of the iSerialNumber bug,
1345 * but it will still work as an AM device.) */
1346 priv->chip_type = FT8U232AM;
1347 } else if (version < 0x600) {
1348 /* Assume it's an FT232BM (or FT245BM) */
1349 priv->chip_type = FT232BM;
1350 } else {
1351 /* Assume it's an FT232R */
1352 priv->chip_type = FT232RL;
1353 }
1354 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1355 }
1356
1357
1358 /* Determine the maximum packet size for the device. This depends on the chip
1359 * type and the USB host capabilities. The value should be obtained from the
1360 * device descriptor as the chip will use the appropriate values for the host.*/
1361 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1362 {
1363 struct ftdi_private *priv = usb_get_serial_port_data(port);
1364 struct usb_serial *serial = port->serial;
1365 struct usb_device *udev = serial->dev;
1366
1367 struct usb_interface *interface = serial->interface;
1368 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1369
1370 unsigned num_endpoints;
1371 int i;
1372
1373 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1374 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1375
1376 /* NOTE: some customers have programmed FT232R/FT245R devices
1377 * with an endpoint size of 0 - not good. In this case, we
1378 * want to override the endpoint descriptor setting and use a
1379 * value of 64 for wMaxPacketSize */
1380 for (i = 0; i < num_endpoints; i++) {
1381 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1382 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1383 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1384 if (ep_desc->wMaxPacketSize == 0) {
1385 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1386 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1387 }
1388 }
1389
1390 /* set max packet size based on descriptor */
1391 priv->max_packet_size = le16_to_cpu(ep_desc->wMaxPacketSize);
1392
1393 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1394 }
1395
1396
1397 /*
1398 * ***************************************************************************
1399 * Sysfs Attribute
1400 * ***************************************************************************
1401 */
1402
1403 static ssize_t show_latency_timer(struct device *dev,
1404 struct device_attribute *attr, char *buf)
1405 {
1406 struct usb_serial_port *port = to_usb_serial_port(dev);
1407 struct ftdi_private *priv = usb_get_serial_port_data(port);
1408 if (priv->flags & ASYNC_LOW_LATENCY)
1409 return sprintf(buf, "1\n");
1410 else
1411 return sprintf(buf, "%i\n", priv->latency);
1412 }
1413
1414
1415 /* Write a new value of the latency timer, in units of milliseconds. */
1416 static ssize_t store_latency_timer(struct device *dev,
1417 struct device_attribute *attr, const char *valbuf,
1418 size_t count)
1419 {
1420 struct usb_serial_port *port = to_usb_serial_port(dev);
1421 struct ftdi_private *priv = usb_get_serial_port_data(port);
1422 int v = simple_strtoul(valbuf, NULL, 10);
1423 int rv;
1424
1425 priv->latency = v;
1426 rv = write_latency_timer(port);
1427 if (rv < 0)
1428 return -EIO;
1429 return count;
1430 }
1431
1432 /* Write an event character directly to the FTDI register. The ASCII
1433 value is in the low 8 bits, with the enable bit in the 9th bit. */
1434 static ssize_t store_event_char(struct device *dev,
1435 struct device_attribute *attr, const char *valbuf, size_t count)
1436 {
1437 struct usb_serial_port *port = to_usb_serial_port(dev);
1438 struct ftdi_private *priv = usb_get_serial_port_data(port);
1439 struct usb_device *udev = port->serial->dev;
1440 int v = simple_strtoul(valbuf, NULL, 10);
1441 int rv;
1442
1443 dbg("%s: setting event char = %i", __func__, v);
1444
1445 rv = usb_control_msg(udev,
1446 usb_sndctrlpipe(udev, 0),
1447 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1448 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1449 v, priv->interface,
1450 NULL, 0, WDR_TIMEOUT);
1451 if (rv < 0) {
1452 dbg("Unable to write event character: %i", rv);
1453 return -EIO;
1454 }
1455
1456 return count;
1457 }
1458
1459 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1460 store_latency_timer);
1461 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1462
1463 static int create_sysfs_attrs(struct usb_serial_port *port)
1464 {
1465 struct ftdi_private *priv = usb_get_serial_port_data(port);
1466 int retval = 0;
1467
1468 dbg("%s", __func__);
1469
1470 /* XXX I've no idea if the original SIO supports the event_char
1471 * sysfs parameter, so I'm playing it safe. */
1472 if (priv->chip_type != SIO) {
1473 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1474 retval = device_create_file(&port->dev, &dev_attr_event_char);
1475 if ((!retval) &&
1476 (priv->chip_type == FT232BM ||
1477 priv->chip_type == FT2232C ||
1478 priv->chip_type == FT232RL ||
1479 priv->chip_type == FT2232H ||
1480 priv->chip_type == FT4232H)) {
1481 retval = device_create_file(&port->dev,
1482 &dev_attr_latency_timer);
1483 }
1484 }
1485 return retval;
1486 }
1487
1488 static void remove_sysfs_attrs(struct usb_serial_port *port)
1489 {
1490 struct ftdi_private *priv = usb_get_serial_port_data(port);
1491
1492 dbg("%s", __func__);
1493
1494 /* XXX see create_sysfs_attrs */
1495 if (priv->chip_type != SIO) {
1496 device_remove_file(&port->dev, &dev_attr_event_char);
1497 if (priv->chip_type == FT232BM ||
1498 priv->chip_type == FT2232C ||
1499 priv->chip_type == FT232RL ||
1500 priv->chip_type == FT2232H ||
1501 priv->chip_type == FT4232H) {
1502 device_remove_file(&port->dev, &dev_attr_latency_timer);
1503 }
1504 }
1505
1506 }
1507
1508 /*
1509 * ***************************************************************************
1510 * FTDI driver specific functions
1511 * ***************************************************************************
1512 */
1513
1514 /* Probe function to check for special devices */
1515 static int ftdi_sio_probe(struct usb_serial *serial,
1516 const struct usb_device_id *id)
1517 {
1518 struct ftdi_sio_quirk *quirk =
1519 (struct ftdi_sio_quirk *)id->driver_info;
1520
1521 if (quirk && quirk->probe) {
1522 int ret = quirk->probe(serial);
1523 if (ret != 0)
1524 return ret;
1525 }
1526
1527 usb_set_serial_data(serial, (void *)id->driver_info);
1528
1529 return 0;
1530 }
1531
1532 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1533 {
1534 struct ftdi_private *priv;
1535 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1536
1537
1538 dbg("%s", __func__);
1539
1540 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1541 if (!priv) {
1542 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1543 sizeof(struct ftdi_private));
1544 return -ENOMEM;
1545 }
1546
1547 kref_init(&priv->kref);
1548 mutex_init(&priv->cfg_lock);
1549 init_waitqueue_head(&priv->delta_msr_wait);
1550
1551 priv->flags = ASYNC_LOW_LATENCY;
1552
1553 if (quirk && quirk->port_probe)
1554 quirk->port_probe(priv);
1555
1556 priv->port = port;
1557 usb_set_serial_port_data(port, priv);
1558
1559 ftdi_determine_type(port);
1560 ftdi_set_max_packet_size(port);
1561 if (read_latency_timer(port) < 0)
1562 priv->latency = 16;
1563 create_sysfs_attrs(port);
1564 return 0;
1565 }
1566
1567 /* Setup for the USB-UIRT device, which requires hardwired
1568 * baudrate (38400 gets mapped to 312500) */
1569 /* Called from usbserial:serial_probe */
1570 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1571 {
1572 dbg("%s", __func__);
1573
1574 priv->flags |= ASYNC_SPD_CUST;
1575 priv->custom_divisor = 77;
1576 priv->force_baud = 38400;
1577 }
1578
1579 /* Setup for the HE-TIRA1 device, which requires hardwired
1580 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1581
1582 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1583 {
1584 dbg("%s", __func__);
1585
1586 priv->flags |= ASYNC_SPD_CUST;
1587 priv->custom_divisor = 240;
1588 priv->force_baud = 38400;
1589 priv->force_rtscts = 1;
1590 }
1591
1592 /*
1593 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1594 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1595 */
1596 static int ndi_latency_timer = 1;
1597
1598 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1599 * baudrate (19200 gets mapped to 1200000).
1600 *
1601 * Called from usbserial:serial_probe.
1602 */
1603 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1604 {
1605 struct usb_device *udev = serial->dev;
1606 int latency = ndi_latency_timer;
1607
1608 if (latency == 0)
1609 latency = 1;
1610 if (latency > 99)
1611 latency = 99;
1612
1613 dbg("%s setting NDI device latency to %d", __func__, latency);
1614 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1615
1616 /* FIXME: errors are not returned */
1617 usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1618 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1619 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1620 latency, 0, NULL, 0, WDR_TIMEOUT);
1621 return 0;
1622 }
1623
1624 /*
1625 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1626 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1627 * userspace using openocd.
1628 */
1629 static int ftdi_jtag_probe(struct usb_serial *serial)
1630 {
1631 struct usb_device *udev = serial->dev;
1632 struct usb_interface *interface = serial->interface;
1633
1634 dbg("%s", __func__);
1635
1636 if (interface == udev->actconfig->interface[0]) {
1637 dev_info(&udev->dev,
1638 "Ignoring serial port reserved for JTAG\n");
1639 return -ENODEV;
1640 }
1641
1642 return 0;
1643 }
1644
1645 /*
1646 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1647 * We have to correct it if we want to read from it.
1648 */
1649 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1650 {
1651 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1652 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1653
1654 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1655 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1656 dev_info(&serial->dev->dev,
1657 "Fixing invalid wMaxPacketSize on read pipe\n");
1658 }
1659
1660 return 0;
1661 }
1662
1663 static void ftdi_sio_priv_release(struct kref *k)
1664 {
1665 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1666
1667 kfree(priv);
1668 }
1669
1670 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1671 {
1672 struct ftdi_private *priv = usb_get_serial_port_data(port);
1673
1674 dbg("%s", __func__);
1675
1676 remove_sysfs_attrs(port);
1677
1678 kref_put(&priv->kref, ftdi_sio_priv_release);
1679
1680 return 0;
1681 }
1682
1683 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1684 {
1685 struct usb_device *dev = port->serial->dev;
1686 struct ftdi_private *priv = usb_get_serial_port_data(port);
1687 int result;
1688
1689 dbg("%s", __func__);
1690
1691 write_latency_timer(port);
1692
1693 /* No error checking for this (will get errors later anyway) */
1694 /* See ftdi_sio.h for description of what is reset */
1695 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1696 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1697 FTDI_SIO_RESET_SIO,
1698 priv->interface, NULL, 0, WDR_TIMEOUT);
1699
1700 /* Termios defaults are set by usb_serial_init. We don't change
1701 port->tty->termios - this would lose speed settings, etc.
1702 This is same behaviour as serial.c/rs_open() - Kuba */
1703
1704 /* ftdi_set_termios will send usb control messages */
1705 if (tty)
1706 ftdi_set_termios(tty, port, tty->termios);
1707
1708 /* Start reading from the device */
1709 result = usb_serial_generic_open(tty, port);
1710 if (!result)
1711 kref_get(&priv->kref);
1712
1713 return result;
1714 }
1715
1716 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1717 {
1718 struct ftdi_private *priv = usb_get_serial_port_data(port);
1719
1720 mutex_lock(&port->serial->disc_mutex);
1721 if (!port->serial->disconnected) {
1722 /* Disable flow control */
1723 if (!on && usb_control_msg(port->serial->dev,
1724 usb_sndctrlpipe(port->serial->dev, 0),
1725 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1726 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1727 0, priv->interface, NULL, 0,
1728 WDR_TIMEOUT) < 0) {
1729 dev_err(&port->dev, "error from flowcontrol urb\n");
1730 }
1731 /* drop RTS and DTR */
1732 if (on)
1733 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1734 else
1735 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1736 }
1737 mutex_unlock(&port->serial->disc_mutex);
1738 }
1739
1740 /*
1741 * usbserial:__serial_close only calls ftdi_close if the point is open
1742 *
1743 * This only gets called when it is the last close
1744 */
1745 static void ftdi_close(struct usb_serial_port *port)
1746 {
1747 struct ftdi_private *priv = usb_get_serial_port_data(port);
1748
1749 dbg("%s", __func__);
1750
1751 usb_serial_generic_close(port);
1752 kref_put(&priv->kref, ftdi_sio_priv_release);
1753 }
1754
1755 /* The SIO requires the first byte to have:
1756 * B0 1
1757 * B1 0
1758 * B2..7 length of message excluding byte 0
1759 *
1760 * The new devices do not require this byte
1761 */
1762 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
1763 void *dest, size_t size)
1764 {
1765 struct ftdi_private *priv;
1766 int count;
1767 unsigned long flags;
1768
1769 priv = usb_get_serial_port_data(port);
1770
1771 if (priv->chip_type == SIO) {
1772 unsigned char *buffer = dest;
1773 int i, len, c;
1774
1775 count = 0;
1776 spin_lock_irqsave(&port->lock, flags);
1777 for (i = 0; i < size - 1; i += priv->max_packet_size) {
1778 len = min_t(int, size - i, priv->max_packet_size) - 1;
1779 c = kfifo_out(&port->write_fifo, &buffer[i + 1], len);
1780 if (!c)
1781 break;
1782 buffer[i] = (c << 2) + 1;
1783 count += c + 1;
1784 }
1785 spin_unlock_irqrestore(&port->lock, flags);
1786 } else {
1787 count = kfifo_out_locked(&port->write_fifo, dest, size,
1788 &port->lock);
1789 }
1790
1791 return count;
1792 }
1793
1794 #define FTDI_RS_ERR_MASK (FTDI_RS_BI | FTDI_RS_PE | FTDI_RS_FE | FTDI_RS_OE)
1795
1796 static int ftdi_process_packet(struct tty_struct *tty,
1797 struct usb_serial_port *port, struct ftdi_private *priv,
1798 char *packet, int len)
1799 {
1800 int i;
1801 char status;
1802 char flag;
1803 char *ch;
1804
1805 dbg("%s - port %d", __func__, port->number);
1806
1807 if (len < 2) {
1808 dbg("malformed packet");
1809 return 0;
1810 }
1811
1812 /* Compare new line status to the old one, signal if different/
1813 N.B. packet may be processed more than once, but differences
1814 are only processed once. */
1815 status = packet[0] & FTDI_STATUS_B0_MASK;
1816 if (status != priv->prev_status) {
1817 priv->diff_status |= status ^ priv->prev_status;
1818 wake_up_interruptible(&priv->delta_msr_wait);
1819 priv->prev_status = status;
1820 }
1821
1822 flag = TTY_NORMAL;
1823 if (packet[1] & FTDI_RS_ERR_MASK) {
1824 /* Break takes precedence over parity, which takes precedence
1825 * over framing errors */
1826 if (packet[1] & FTDI_RS_BI) {
1827 flag = TTY_BREAK;
1828 usb_serial_handle_break(port);
1829 } else if (packet[1] & FTDI_RS_PE) {
1830 flag = TTY_PARITY;
1831 } else if (packet[1] & FTDI_RS_FE) {
1832 flag = TTY_FRAME;
1833 }
1834 /* Overrun is special, not associated with a char */
1835 if (packet[1] & FTDI_RS_OE)
1836 tty_insert_flip_char(tty, 0, TTY_OVERRUN);
1837 }
1838
1839 len -= 2;
1840 if (!len)
1841 return 0; /* status only */
1842 ch = packet + 2;
1843
1844 if (port->port.console && port->sysrq) {
1845 for (i = 0; i < len; i++, ch++) {
1846 if (!usb_serial_handle_sysrq_char(port, *ch))
1847 tty_insert_flip_char(tty, *ch, flag);
1848 }
1849 } else {
1850 tty_insert_flip_string_fixed_flag(tty, ch, flag, len);
1851 }
1852
1853 return len;
1854 }
1855
1856 static void ftdi_process_read_urb(struct urb *urb)
1857 {
1858 struct usb_serial_port *port = urb->context;
1859 struct tty_struct *tty;
1860 struct ftdi_private *priv = usb_get_serial_port_data(port);
1861 char *data = (char *)urb->transfer_buffer;
1862 int i;
1863 int len;
1864 int count = 0;
1865
1866 tty = tty_port_tty_get(&port->port);
1867 if (!tty)
1868 return;
1869
1870 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
1871 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
1872 count += ftdi_process_packet(tty, port, priv, &data[i], len);
1873 }
1874
1875 if (count)
1876 tty_flip_buffer_push(tty);
1877 tty_kref_put(tty);
1878 }
1879
1880 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1881 {
1882 struct usb_serial_port *port = tty->driver_data;
1883 struct ftdi_private *priv = usb_get_serial_port_data(port);
1884 __u16 urb_value;
1885
1886 /* break_state = -1 to turn on break, and 0 to turn off break */
1887 /* see drivers/char/tty_io.c to see it used */
1888 /* last_set_data_urb_value NEVER has the break bit set in it */
1889
1890 if (break_state)
1891 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
1892 else
1893 urb_value = priv->last_set_data_urb_value;
1894
1895 if (usb_control_msg(port->serial->dev,
1896 usb_sndctrlpipe(port->serial->dev, 0),
1897 FTDI_SIO_SET_DATA_REQUEST,
1898 FTDI_SIO_SET_DATA_REQUEST_TYPE,
1899 urb_value , priv->interface,
1900 NULL, 0, WDR_TIMEOUT) < 0) {
1901 dev_err(&port->dev, "%s FAILED to enable/disable break state "
1902 "(state was %d)\n", __func__, break_state);
1903 }
1904
1905 dbg("%s break state is %d - urb is %d", __func__,
1906 break_state, urb_value);
1907
1908 }
1909
1910 /* old_termios contains the original termios settings and tty->termios contains
1911 * the new setting to be used
1912 * WARNING: set_termios calls this with old_termios in kernel space
1913 */
1914 static void ftdi_set_termios(struct tty_struct *tty,
1915 struct usb_serial_port *port, struct ktermios *old_termios)
1916 {
1917 struct usb_device *dev = port->serial->dev;
1918 struct ftdi_private *priv = usb_get_serial_port_data(port);
1919 struct ktermios *termios = tty->termios;
1920 unsigned int cflag = termios->c_cflag;
1921 __u16 urb_value; /* will hold the new flags */
1922
1923 /* Added for xon/xoff support */
1924 unsigned int iflag = termios->c_iflag;
1925 unsigned char vstop;
1926 unsigned char vstart;
1927
1928 dbg("%s", __func__);
1929
1930 /* Force baud rate if this device requires it, unless it is set to
1931 B0. */
1932 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
1933 dbg("%s: forcing baud rate for this device", __func__);
1934 tty_encode_baud_rate(tty, priv->force_baud,
1935 priv->force_baud);
1936 }
1937
1938 /* Force RTS-CTS if this device requires it. */
1939 if (priv->force_rtscts) {
1940 dbg("%s: forcing rtscts for this device", __func__);
1941 termios->c_cflag |= CRTSCTS;
1942 }
1943
1944 cflag = termios->c_cflag;
1945
1946 /* FIXME -For this cut I don't care if the line is really changing or
1947 not - so just do the change regardless - should be able to
1948 compare old_termios and tty->termios */
1949 /* NOTE These routines can get interrupted by
1950 ftdi_sio_read_bulk_callback - need to examine what this means -
1951 don't see any problems yet */
1952
1953 /* Set number of data bits, parity, stop bits */
1954
1955 urb_value = 0;
1956 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
1957 FTDI_SIO_SET_DATA_STOP_BITS_1);
1958 if (cflag & PARENB) {
1959 if (cflag & CMSPAR)
1960 urb_value |= cflag & PARODD ?
1961 FTDI_SIO_SET_DATA_PARITY_MARK :
1962 FTDI_SIO_SET_DATA_PARITY_SPACE;
1963 else
1964 urb_value |= cflag & PARODD ?
1965 FTDI_SIO_SET_DATA_PARITY_ODD :
1966 FTDI_SIO_SET_DATA_PARITY_EVEN;
1967 } else {
1968 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
1969 }
1970 if (cflag & CSIZE) {
1971 switch (cflag & CSIZE) {
1972 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
1973 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
1974 default:
1975 dev_err(&port->dev, "CSIZE was set but not CS7-CS8\n");
1976 }
1977 }
1978
1979 /* This is needed by the break command since it uses the same command
1980 - but is or'ed with this value */
1981 priv->last_set_data_urb_value = urb_value;
1982
1983 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1984 FTDI_SIO_SET_DATA_REQUEST,
1985 FTDI_SIO_SET_DATA_REQUEST_TYPE,
1986 urb_value , priv->interface,
1987 NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
1988 dev_err(&port->dev, "%s FAILED to set "
1989 "databits/stopbits/parity\n", __func__);
1990 }
1991
1992 /* Now do the baudrate */
1993 if ((cflag & CBAUD) == B0) {
1994 /* Disable flow control */
1995 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1996 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1997 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1998 0, priv->interface,
1999 NULL, 0, WDR_TIMEOUT) < 0) {
2000 dev_err(&port->dev,
2001 "%s error from disable flowcontrol urb\n",
2002 __func__);
2003 }
2004 /* Drop RTS and DTR */
2005 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2006 } else {
2007 /* set the baudrate determined before */
2008 mutex_lock(&priv->cfg_lock);
2009 if (change_speed(tty, port))
2010 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2011 __func__);
2012 mutex_unlock(&priv->cfg_lock);
2013 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2014 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2015 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2016 }
2017
2018 /* Set flow control */
2019 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2020 if (cflag & CRTSCTS) {
2021 dbg("%s Setting to CRTSCTS flow control", __func__);
2022 if (usb_control_msg(dev,
2023 usb_sndctrlpipe(dev, 0),
2024 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2025 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2026 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2027 NULL, 0, WDR_TIMEOUT) < 0) {
2028 dev_err(&port->dev,
2029 "urb failed to set to rts/cts flow control\n");
2030 }
2031
2032 } else {
2033 /*
2034 * Xon/Xoff code
2035 *
2036 * Check the IXOFF status in the iflag component of the
2037 * termios structure. If IXOFF is not set, the pre-xon/xoff
2038 * code is executed.
2039 */
2040 if (iflag & IXOFF) {
2041 dbg("%s request to enable xonxoff iflag=%04x",
2042 __func__, iflag);
2043 /* Try to enable the XON/XOFF on the ftdi_sio
2044 * Set the vstart and vstop -- could have been done up
2045 * above where a lot of other dereferencing is done but
2046 * that would be very inefficient as vstart and vstop
2047 * are not always needed.
2048 */
2049 vstart = termios->c_cc[VSTART];
2050 vstop = termios->c_cc[VSTOP];
2051 urb_value = (vstop << 8) | (vstart);
2052
2053 if (usb_control_msg(dev,
2054 usb_sndctrlpipe(dev, 0),
2055 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2056 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2057 urb_value , (FTDI_SIO_XON_XOFF_HS
2058 | priv->interface),
2059 NULL, 0, WDR_TIMEOUT) < 0) {
2060 dev_err(&port->dev, "urb failed to set to "
2061 "xon/xoff flow control\n");
2062 }
2063 } else {
2064 /* else clause to only run if cflag ! CRTSCTS and iflag
2065 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2066 * stack - not by device */
2067 dbg("%s Turning off hardware flow control", __func__);
2068 if (usb_control_msg(dev,
2069 usb_sndctrlpipe(dev, 0),
2070 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2071 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2072 0, priv->interface,
2073 NULL, 0, WDR_TIMEOUT) < 0) {
2074 dev_err(&port->dev,
2075 "urb failed to clear flow control\n");
2076 }
2077 }
2078
2079 }
2080 return;
2081 }
2082
2083 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2084 {
2085 struct usb_serial_port *port = tty->driver_data;
2086 struct ftdi_private *priv = usb_get_serial_port_data(port);
2087 unsigned char *buf;
2088 int len;
2089 int ret;
2090
2091 dbg("%s TIOCMGET", __func__);
2092
2093 buf = kmalloc(2, GFP_KERNEL);
2094 if (!buf)
2095 return -ENOMEM;
2096 /*
2097 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2098 * the same format as the data returned from the in point.
2099 */
2100 switch (priv->chip_type) {
2101 case SIO:
2102 len = 1;
2103 break;
2104 case FT8U232AM:
2105 case FT232BM:
2106 case FT2232C:
2107 case FT232RL:
2108 case FT2232H:
2109 case FT4232H:
2110 len = 2;
2111 break;
2112 default:
2113 ret = -EFAULT;
2114 goto out;
2115 }
2116
2117 ret = usb_control_msg(port->serial->dev,
2118 usb_rcvctrlpipe(port->serial->dev, 0),
2119 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2120 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2121 0, priv->interface,
2122 buf, len, WDR_TIMEOUT);
2123 if (ret < 0)
2124 goto out;
2125
2126 ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2127 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2128 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2129 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2130 priv->last_dtr_rts;
2131 out:
2132 kfree(buf);
2133 return ret;
2134 }
2135
2136 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2137 unsigned int set, unsigned int clear)
2138 {
2139 struct usb_serial_port *port = tty->driver_data;
2140 dbg("%s TIOCMSET", __func__);
2141 return update_mctrl(port, set, clear);
2142 }
2143
2144 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2145 unsigned int cmd, unsigned long arg)
2146 {
2147 struct usb_serial_port *port = tty->driver_data;
2148 struct ftdi_private *priv = usb_get_serial_port_data(port);
2149
2150 dbg("%s cmd 0x%04x", __func__, cmd);
2151
2152 /* Based on code from acm.c and others */
2153 switch (cmd) {
2154
2155 case TIOCGSERIAL: /* gets serial port data */
2156 return get_serial_info(port,
2157 (struct serial_struct __user *) arg);
2158
2159 case TIOCSSERIAL: /* sets serial port data */
2160 return set_serial_info(tty, port,
2161 (struct serial_struct __user *) arg);
2162
2163 /*
2164 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2165 * - mask passed in arg for lines of interest
2166 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2167 * Caller should use TIOCGICOUNT to see which one it was.
2168 *
2169 * This code is borrowed from linux/drivers/char/serial.c
2170 */
2171 case TIOCMIWAIT:
2172 while (priv != NULL) {
2173 interruptible_sleep_on(&priv->delta_msr_wait);
2174 /* see if a signal did it */
2175 if (signal_pending(current))
2176 return -ERESTARTSYS;
2177 else {
2178 char diff = priv->diff_status;
2179
2180 if (diff == 0)
2181 return -EIO; /* no change => error */
2182
2183 /* Consume all events */
2184 priv->diff_status = 0;
2185
2186 /* Return 0 if caller wanted to know about
2187 these bits */
2188 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2189 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2190 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2191 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2192 return 0;
2193 }
2194 /*
2195 * Otherwise caller can't care less about what
2196 * happened,and so we continue to wait for more
2197 * events.
2198 */
2199 }
2200 }
2201 return 0;
2202 default:
2203 break;
2204 }
2205 /* This is not necessarily an error - turns out the higher layers
2206 * will do some ioctls themselves (see comment above)
2207 */
2208 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2209 return -ENOIOCTLCMD;
2210 }
2211
2212 static int __init ftdi_init(void)
2213 {
2214 int retval;
2215
2216 dbg("%s", __func__);
2217 if (vendor > 0 && product > 0) {
2218 /* Add user specified VID/PID to reserved element of table. */
2219 int i;
2220 for (i = 0; id_table_combined[i].idVendor; i++)
2221 ;
2222 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2223 id_table_combined[i].idVendor = vendor;
2224 id_table_combined[i].idProduct = product;
2225 }
2226 retval = usb_serial_register(&ftdi_sio_device);
2227 if (retval)
2228 goto failed_sio_register;
2229 retval = usb_register(&ftdi_driver);
2230 if (retval)
2231 goto failed_usb_register;
2232
2233 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2234 DRIVER_DESC "\n");
2235 return 0;
2236 failed_usb_register:
2237 usb_serial_deregister(&ftdi_sio_device);
2238 failed_sio_register:
2239 return retval;
2240 }
2241
2242 static void __exit ftdi_exit(void)
2243 {
2244 dbg("%s", __func__);
2245
2246 usb_deregister(&ftdi_driver);
2247 usb_serial_deregister(&ftdi_sio_device);
2248 }
2249
2250
2251 module_init(ftdi_init);
2252 module_exit(ftdi_exit);
2253
2254 MODULE_AUTHOR(DRIVER_AUTHOR);
2255 MODULE_DESCRIPTION(DRIVER_DESC);
2256 MODULE_LICENSE("GPL");
2257
2258 module_param(debug, bool, S_IRUGO | S_IWUSR);
2259 MODULE_PARM_DESC(debug, "Debug enabled or not");
2260 module_param(vendor, ushort, 0);
2261 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2262 __MODULE_STRING(FTDI_VID)")");
2263 module_param(product, ushort, 0);
2264 MODULE_PARM_DESC(product, "User specified product ID");
2265
2266 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2267 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree