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Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[mirror_ubuntu-bionic-kernel.git] / drivers / usb / serial / ftdi_sio.c
1 /*
2 * USB FTDI SIO driver
3 *
4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
23 *
24 */
25
26 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27 /* Thanx to FTDI for so kindly providing details of the protocol required */
28 /* to talk to the device */
29 /* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
31
32 #include <linux/kernel.h>
33 #include <linux/errno.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36 #include <linux/tty.h>
37 #include <linux/tty_driver.h>
38 #include <linux/tty_flip.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/mutex.h>
42 #include <linux/uaccess.h>
43 #include <linux/usb.h>
44 #include <linux/serial.h>
45 #include <linux/usb/serial.h>
46 #include "ftdi_sio.h"
47 #include "ftdi_sio_ids.h"
48
49 /*
50 * Version Information
51 */
52 #define DRIVER_VERSION "v1.5.0"
53 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr"
54 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
55
56 static int debug;
57 static __u16 vendor = FTDI_VID;
58 static __u16 product;
59
60 struct ftdi_private {
61 struct kref kref;
62 ftdi_chip_type_t chip_type;
63 /* type of device, either SIO or FT8U232AM */
64 int baud_base; /* baud base clock for divisor setting */
65 int custom_divisor; /* custom_divisor kludge, this is for
66 baud_base (different from what goes to the
67 chip!) */
68 __u16 last_set_data_urb_value ;
69 /* the last data state set - needed for doing
70 * a break
71 */
72 int write_offset; /* This is the offset in the usb data block to
73 * write the serial data - it varies between
74 * devices
75 */
76 int flags; /* some ASYNC_xxxx flags are supported */
77 unsigned long last_dtr_rts; /* saved modem control outputs */
78 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
79 char prev_status, diff_status; /* Used for TIOCMIWAIT */
80 struct usb_serial_port *port;
81 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
82 (0 for FT232/245) */
83
84 speed_t force_baud; /* if non-zero, force the baud rate to
85 this value */
86 int force_rtscts; /* if non-zero, force RTS-CTS to always
87 be enabled */
88
89 unsigned int latency; /* latency setting in use */
90 spinlock_t tx_lock; /* spinlock for transmit state */
91 unsigned long tx_outstanding_bytes;
92 unsigned long tx_outstanding_urbs;
93 unsigned short max_packet_size;
94 struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() */
95 };
96
97 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
98 struct ftdi_sio_quirk {
99 int (*probe)(struct usb_serial *);
100 /* Special settings for probed ports. */
101 void (*port_probe)(struct ftdi_private *);
102 };
103
104 static int ftdi_jtag_probe(struct usb_serial *serial);
105 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
106 static int ftdi_NDI_device_setup(struct usb_serial *serial);
107 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
108 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
109
110 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
111 .probe = ftdi_jtag_probe,
112 };
113
114 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
115 .probe = ftdi_mtxorb_hack_setup,
116 };
117
118 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
119 .probe = ftdi_NDI_device_setup,
120 };
121
122 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
123 .port_probe = ftdi_USB_UIRT_setup,
124 };
125
126 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
127 .port_probe = ftdi_HE_TIRA1_setup,
128 };
129
130 /*
131 * The 8U232AM has the same API as the sio except for:
132 * - it can support MUCH higher baudrates; up to:
133 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
134 * o 230400 at 12MHz
135 * so .. 8U232AM's baudrate setting codes are different
136 * - it has a two byte status code.
137 * - it returns characters every 16ms (the FTDI does it every 40ms)
138 *
139 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
140 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
141 * combinations in both tables.
142 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
143 * but I don't know if those ever went into mass production. [Ian Abbott]
144 */
145
146
147
148 /*
149 * Device ID not listed? Test via module params product/vendor or
150 * /sys/bus/usb/ftdi_sio/new_id, then send patch/report!
151 */
152 static struct usb_device_id id_table_combined [] = {
153 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
168 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
169 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
170 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
182 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
183 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
185 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
191 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
193 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
194 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
195 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
198 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
199 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
200 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
201 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
202 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
203 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
244 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
250 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
290 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
292 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
294 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
296 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
298 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
300 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
463 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
464 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
465 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
466 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
467 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
468 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
469 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
470 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
471 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
514 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
515 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
516 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
517 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
518 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
519 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
520 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
522 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
523 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
524 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
525 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
526 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
527 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
528 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
559 /*
560 * ELV devices:
561 */
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
578 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
579 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
580 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
581 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
582 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
583 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
584 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
586 { USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
587 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
588 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
589 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
590 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
592 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
593 { USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
594 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
595 { USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
596 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
597 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
598 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
599 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
600 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
601 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
608 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
609 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
610 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
611 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
612 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
614 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
615 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
617 { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
618 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
619 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
620 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
621 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
622 { USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
623 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
624 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
625 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
626 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
627 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
628 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
629 { USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
630 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
631 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
632 { USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
633 { USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
634 { USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
635 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
636 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
637 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
638 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
639 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
640 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
641 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
642 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
643 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
644 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
645 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
646 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
647 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
648 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
649 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
650 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
651 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
652 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
653 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
654 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
655 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
656 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
657 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
658 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
659 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
660 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
661 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
663 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
664 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
665 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
666 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
667 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
668 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
669 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
670 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
671 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
672 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
673 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
674 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
675 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
676 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
677 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
678 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
679 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
680 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
681 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
682 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
683 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
684 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
685 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
686 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
687 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
688 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
689 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
690 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
691 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
692 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
693 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
694 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
695 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
696 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
697 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
698 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_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 { }, /* Optional parameter entry */
746 { } /* Terminating entry */
747 };
748
749 MODULE_DEVICE_TABLE(usb, id_table_combined);
750
751 static struct usb_driver ftdi_driver = {
752 .name = "ftdi_sio",
753 .probe = usb_serial_probe,
754 .disconnect = usb_serial_disconnect,
755 .id_table = id_table_combined,
756 .no_dynamic_id = 1,
757 };
758
759 static const char *ftdi_chip_name[] = {
760 [SIO] = "SIO", /* the serial part of FT8U100AX */
761 [FT8U232AM] = "FT8U232AM",
762 [FT232BM] = "FT232BM",
763 [FT2232C] = "FT2232C",
764 [FT232RL] = "FT232RL",
765 [FT2232H] = "FT2232H",
766 [FT4232H] = "FT4232H"
767 };
768
769
770 /* Constants for read urb and write urb */
771 #define BUFSZ 512
772
773 /* Used for TIOCMIWAIT */
774 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
775 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
776 /* End TIOCMIWAIT */
777
778 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
779 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
780
781 /* function prototypes for a FTDI serial converter */
782 static int ftdi_sio_probe(struct usb_serial *serial,
783 const struct usb_device_id *id);
784 static int ftdi_sio_port_probe(struct usb_serial_port *port);
785 static int ftdi_sio_port_remove(struct usb_serial_port *port);
786 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
787 static void ftdi_close(struct usb_serial_port *port);
788 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
789 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
790 const unsigned char *buf, int count);
791 static int ftdi_write_room(struct tty_struct *tty);
792 static int ftdi_chars_in_buffer(struct tty_struct *tty);
793 static void ftdi_write_bulk_callback(struct urb *urb);
794 static void ftdi_read_bulk_callback(struct urb *urb);
795 static void ftdi_process_read(struct usb_serial_port *port);
796 static void ftdi_set_termios(struct tty_struct *tty,
797 struct usb_serial_port *port, struct ktermios *old);
798 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
799 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
800 unsigned int set, unsigned int clear);
801 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
802 unsigned int cmd, unsigned long arg);
803 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
804 static void ftdi_throttle(struct tty_struct *tty);
805 static void ftdi_unthrottle(struct tty_struct *tty);
806
807 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
808 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
809 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
810 static __u32 ftdi_232bm_baud_to_divisor(int baud);
811 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
812 static __u32 ftdi_2232h_baud_to_divisor(int baud);
813
814 static struct usb_serial_driver ftdi_sio_device = {
815 .driver = {
816 .owner = THIS_MODULE,
817 .name = "ftdi_sio",
818 },
819 .description = "FTDI USB Serial Device",
820 .usb_driver = &ftdi_driver,
821 .id_table = id_table_combined,
822 .num_ports = 1,
823 .probe = ftdi_sio_probe,
824 .port_probe = ftdi_sio_port_probe,
825 .port_remove = ftdi_sio_port_remove,
826 .open = ftdi_open,
827 .close = ftdi_close,
828 .dtr_rts = ftdi_dtr_rts,
829 .throttle = ftdi_throttle,
830 .unthrottle = ftdi_unthrottle,
831 .write = ftdi_write,
832 .write_room = ftdi_write_room,
833 .chars_in_buffer = ftdi_chars_in_buffer,
834 .read_bulk_callback = ftdi_read_bulk_callback,
835 .write_bulk_callback = ftdi_write_bulk_callback,
836 .tiocmget = ftdi_tiocmget,
837 .tiocmset = ftdi_tiocmset,
838 .ioctl = ftdi_ioctl,
839 .set_termios = ftdi_set_termios,
840 .break_ctl = ftdi_break_ctl,
841 };
842
843
844 #define WDR_TIMEOUT 5000 /* default urb timeout */
845 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
846
847 /* High and low are for DTR, RTS etc etc */
848 #define HIGH 1
849 #define LOW 0
850
851 /* number of outstanding urbs to prevent userspace DoS from happening */
852 #define URB_UPPER_LIMIT 42
853
854 /*
855 * ***************************************************************************
856 * Utility functions
857 * ***************************************************************************
858 */
859
860 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
861 {
862 unsigned short int divisor;
863 /* divisor shifted 3 bits to the left */
864 int divisor3 = base / 2 / baud;
865 if ((divisor3 & 0x7) == 7)
866 divisor3++; /* round x.7/8 up to x+1 */
867 divisor = divisor3 >> 3;
868 divisor3 &= 0x7;
869 if (divisor3 == 1)
870 divisor |= 0xc000;
871 else if (divisor3 >= 4)
872 divisor |= 0x4000;
873 else if (divisor3 != 0)
874 divisor |= 0x8000;
875 else if (divisor == 1)
876 divisor = 0; /* special case for maximum baud rate */
877 return divisor;
878 }
879
880 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
881 {
882 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
883 }
884
885 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
886 {
887 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
888 __u32 divisor;
889 /* divisor shifted 3 bits to the left */
890 int divisor3 = base / 2 / baud;
891 divisor = divisor3 >> 3;
892 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
893 /* Deal with special cases for highest baud rates. */
894 if (divisor == 1)
895 divisor = 0;
896 else if (divisor == 0x4001)
897 divisor = 1;
898 return divisor;
899 }
900
901 static __u32 ftdi_232bm_baud_to_divisor(int baud)
902 {
903 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
904 }
905
906 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
907 {
908 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
909 __u32 divisor;
910 int divisor3;
911
912 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
913 divisor3 = (base / 10 / baud) * 8;
914
915 divisor = divisor3 >> 3;
916 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
917 /* Deal with special cases for highest baud rates. */
918 if (divisor == 1)
919 divisor = 0;
920 else if (divisor == 0x4001)
921 divisor = 1;
922 /*
923 * Set this bit to turn off a divide by 2.5 on baud rate generator
924 * This enables baud rates up to 12Mbaud but cannot reach below 1200
925 * baud with this bit set
926 */
927 divisor |= 0x00020000;
928 return divisor;
929 }
930
931 static __u32 ftdi_2232h_baud_to_divisor(int baud)
932 {
933 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
934 }
935
936 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
937 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
938
939 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
940 unsigned int clear)
941 {
942 struct ftdi_private *priv = usb_get_serial_port_data(port);
943 unsigned urb_value;
944 int rv;
945
946 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
947 dbg("%s - DTR|RTS not being set|cleared", __func__);
948 return 0; /* no change */
949 }
950
951 clear &= ~set; /* 'set' takes precedence over 'clear' */
952 urb_value = 0;
953 if (clear & TIOCM_DTR)
954 urb_value |= FTDI_SIO_SET_DTR_LOW;
955 if (clear & TIOCM_RTS)
956 urb_value |= FTDI_SIO_SET_RTS_LOW;
957 if (set & TIOCM_DTR)
958 urb_value |= FTDI_SIO_SET_DTR_HIGH;
959 if (set & TIOCM_RTS)
960 urb_value |= FTDI_SIO_SET_RTS_HIGH;
961 rv = usb_control_msg(port->serial->dev,
962 usb_sndctrlpipe(port->serial->dev, 0),
963 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
964 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
965 urb_value, priv->interface,
966 NULL, 0, WDR_TIMEOUT);
967 if (rv < 0) {
968 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
969 __func__,
970 (set & TIOCM_DTR) ? "HIGH" :
971 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
972 (set & TIOCM_RTS) ? "HIGH" :
973 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
974 } else {
975 dbg("%s - DTR %s, RTS %s", __func__,
976 (set & TIOCM_DTR) ? "HIGH" :
977 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
978 (set & TIOCM_RTS) ? "HIGH" :
979 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
980 /* FIXME: locking on last_dtr_rts */
981 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
982 }
983 return rv;
984 }
985
986
987 static __u32 get_ftdi_divisor(struct tty_struct *tty,
988 struct usb_serial_port *port)
989 { /* get_ftdi_divisor */
990 struct ftdi_private *priv = usb_get_serial_port_data(port);
991 __u32 div_value = 0;
992 int div_okay = 1;
993 int baud;
994
995 /*
996 * The logic involved in setting the baudrate can be cleanly split into
997 * 3 steps.
998 * 1. Standard baud rates are set in tty->termios->c_cflag
999 * 2. If these are not enough, you can set any speed using alt_speed as
1000 * follows:
1001 * - set tty->termios->c_cflag speed to B38400
1002 * - set your real speed in tty->alt_speed; it gets ignored when
1003 * alt_speed==0, (or)
1004 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1005 * follows:
1006 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1007 * this just sets alt_speed to (HI: 57600, VHI: 115200,
1008 * SHI: 230400, WARP: 460800)
1009 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1010 * 3. You can also set baud rate by setting custom divisor as follows
1011 * - set tty->termios->c_cflag speed to B38400
1012 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1013 * follows:
1014 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1015 * o custom_divisor set to baud_base / your_new_baudrate
1016 * ** Step 3 is done courtesy of code borrowed from serial.c
1017 * I should really spend some time and separate + move this common
1018 * code to serial.c, it is replicated in nearly every serial driver
1019 * you see.
1020 */
1021
1022 /* 1. Get the baud rate from the tty settings, this observes
1023 alt_speed hack */
1024
1025 baud = tty_get_baud_rate(tty);
1026 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1027
1028 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1029 if needed */
1030
1031 if (baud == 38400 &&
1032 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1033 (priv->custom_divisor)) {
1034 baud = priv->baud_base / priv->custom_divisor;
1035 dbg("%s - custom divisor %d sets baud rate to %d",
1036 __func__, priv->custom_divisor, baud);
1037 }
1038
1039 /* 3. Convert baudrate to device-specific divisor */
1040
1041 if (!baud)
1042 baud = 9600;
1043 switch (priv->chip_type) {
1044 case SIO: /* SIO chip */
1045 switch (baud) {
1046 case 300: div_value = ftdi_sio_b300; break;
1047 case 600: div_value = ftdi_sio_b600; break;
1048 case 1200: div_value = ftdi_sio_b1200; break;
1049 case 2400: div_value = ftdi_sio_b2400; break;
1050 case 4800: div_value = ftdi_sio_b4800; break;
1051 case 9600: div_value = ftdi_sio_b9600; break;
1052 case 19200: div_value = ftdi_sio_b19200; break;
1053 case 38400: div_value = ftdi_sio_b38400; break;
1054 case 57600: div_value = ftdi_sio_b57600; break;
1055 case 115200: div_value = ftdi_sio_b115200; break;
1056 } /* baud */
1057 if (div_value == 0) {
1058 dbg("%s - Baudrate (%d) requested is not supported",
1059 __func__, baud);
1060 div_value = ftdi_sio_b9600;
1061 baud = 9600;
1062 div_okay = 0;
1063 }
1064 break;
1065 case FT8U232AM: /* 8U232AM chip */
1066 if (baud <= 3000000) {
1067 div_value = ftdi_232am_baud_to_divisor(baud);
1068 } else {
1069 dbg("%s - Baud rate too high!", __func__);
1070 baud = 9600;
1071 div_value = ftdi_232am_baud_to_divisor(9600);
1072 div_okay = 0;
1073 }
1074 break;
1075 case FT232BM: /* FT232BM chip */
1076 case FT2232C: /* FT2232C chip */
1077 case FT232RL:
1078 if (baud <= 3000000) {
1079 __u16 product_id = le16_to_cpu(
1080 port->serial->dev->descriptor.idProduct);
1081 if (((FTDI_NDI_HUC_PID == product_id) ||
1082 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1083 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1084 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1085 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1086 (baud == 19200)) {
1087 baud = 1200000;
1088 }
1089 div_value = ftdi_232bm_baud_to_divisor(baud);
1090 } else {
1091 dbg("%s - Baud rate too high!", __func__);
1092 div_value = ftdi_232bm_baud_to_divisor(9600);
1093 div_okay = 0;
1094 baud = 9600;
1095 }
1096 break;
1097 case FT2232H: /* FT2232H chip */
1098 case FT4232H: /* FT4232H chip */
1099 if ((baud <= 12000000) & (baud >= 1200)) {
1100 div_value = ftdi_2232h_baud_to_divisor(baud);
1101 } else if (baud < 1200) {
1102 div_value = ftdi_232bm_baud_to_divisor(baud);
1103 } else {
1104 dbg("%s - Baud rate too high!", __func__);
1105 div_value = ftdi_232bm_baud_to_divisor(9600);
1106 div_okay = 0;
1107 baud = 9600;
1108 }
1109 break;
1110 } /* priv->chip_type */
1111
1112 if (div_okay) {
1113 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1114 __func__, baud, (unsigned long)div_value,
1115 ftdi_chip_name[priv->chip_type]);
1116 }
1117
1118 tty_encode_baud_rate(tty, baud, baud);
1119 return div_value;
1120 }
1121
1122 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1123 {
1124 struct ftdi_private *priv = usb_get_serial_port_data(port);
1125 __u16 urb_value;
1126 __u16 urb_index;
1127 __u32 urb_index_value;
1128 int rv;
1129
1130 urb_index_value = get_ftdi_divisor(tty, port);
1131 urb_value = (__u16)urb_index_value;
1132 urb_index = (__u16)(urb_index_value >> 16);
1133 if (priv->interface) { /* FT2232C */
1134 urb_index = (__u16)((urb_index << 8) | priv->interface);
1135 }
1136
1137 rv = usb_control_msg(port->serial->dev,
1138 usb_sndctrlpipe(port->serial->dev, 0),
1139 FTDI_SIO_SET_BAUDRATE_REQUEST,
1140 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1141 urb_value, urb_index,
1142 NULL, 0, WDR_SHORT_TIMEOUT);
1143 return rv;
1144 }
1145
1146 static int write_latency_timer(struct usb_serial_port *port)
1147 {
1148 struct ftdi_private *priv = usb_get_serial_port_data(port);
1149 struct usb_device *udev = port->serial->dev;
1150 int rv;
1151 int l = priv->latency;
1152
1153 if (priv->flags & ASYNC_LOW_LATENCY)
1154 l = 1;
1155
1156 dbg("%s: setting latency timer = %i", __func__, l);
1157
1158 rv = usb_control_msg(udev,
1159 usb_sndctrlpipe(udev, 0),
1160 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1161 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1162 l, priv->interface,
1163 NULL, 0, WDR_TIMEOUT);
1164 if (rv < 0)
1165 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1166 return rv;
1167 }
1168
1169 static int read_latency_timer(struct usb_serial_port *port)
1170 {
1171 struct ftdi_private *priv = usb_get_serial_port_data(port);
1172 struct usb_device *udev = port->serial->dev;
1173 unsigned char *buf;
1174 int rv;
1175
1176 dbg("%s", __func__);
1177
1178 buf = kmalloc(1, GFP_KERNEL);
1179 if (!buf)
1180 return -ENOMEM;
1181
1182 rv = usb_control_msg(udev,
1183 usb_rcvctrlpipe(udev, 0),
1184 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1185 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1186 0, priv->interface,
1187 buf, 1, WDR_TIMEOUT);
1188 if (rv < 0)
1189 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1190 else
1191 priv->latency = buf[0];
1192
1193 kfree(buf);
1194
1195 return rv;
1196 }
1197
1198 static int get_serial_info(struct usb_serial_port *port,
1199 struct serial_struct __user *retinfo)
1200 {
1201 struct ftdi_private *priv = usb_get_serial_port_data(port);
1202 struct serial_struct tmp;
1203
1204 if (!retinfo)
1205 return -EFAULT;
1206 memset(&tmp, 0, sizeof(tmp));
1207 tmp.flags = priv->flags;
1208 tmp.baud_base = priv->baud_base;
1209 tmp.custom_divisor = priv->custom_divisor;
1210 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1211 return -EFAULT;
1212 return 0;
1213 } /* get_serial_info */
1214
1215
1216 static int set_serial_info(struct tty_struct *tty,
1217 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1218 { /* set_serial_info */
1219 struct ftdi_private *priv = usb_get_serial_port_data(port);
1220 struct serial_struct new_serial;
1221 struct ftdi_private old_priv;
1222
1223 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1224 return -EFAULT;
1225
1226 mutex_lock(&priv->cfg_lock);
1227 old_priv = *priv;
1228
1229 /* Do error checking and permission checking */
1230
1231 if (!capable(CAP_SYS_ADMIN)) {
1232 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1233 (priv->flags & ~ASYNC_USR_MASK))) {
1234 mutex_unlock(&priv->cfg_lock);
1235 return -EPERM;
1236 }
1237 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1238 (new_serial.flags & ASYNC_USR_MASK));
1239 priv->custom_divisor = new_serial.custom_divisor;
1240 goto check_and_exit;
1241 }
1242
1243 if ((new_serial.baud_base != priv->baud_base) &&
1244 (new_serial.baud_base < 9600)) {
1245 mutex_unlock(&priv->cfg_lock);
1246 return -EINVAL;
1247 }
1248
1249 /* Make the changes - these are privileged changes! */
1250
1251 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1252 (new_serial.flags & ASYNC_FLAGS));
1253 priv->custom_divisor = new_serial.custom_divisor;
1254
1255 write_latency_timer(port);
1256
1257 check_and_exit:
1258 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1259 (priv->flags & ASYNC_SPD_MASK)) {
1260 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1261 tty->alt_speed = 57600;
1262 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1263 tty->alt_speed = 115200;
1264 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1265 tty->alt_speed = 230400;
1266 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1267 tty->alt_speed = 460800;
1268 else
1269 tty->alt_speed = 0;
1270 }
1271 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1272 (priv->flags & ASYNC_SPD_MASK)) ||
1273 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1274 (old_priv.custom_divisor != priv->custom_divisor))) {
1275 mutex_unlock(&priv->cfg_lock);
1276 change_speed(tty, port);
1277 }
1278 else
1279 mutex_unlock(&priv->cfg_lock);
1280 return 0;
1281
1282 } /* set_serial_info */
1283
1284
1285 /* Determine type of FTDI chip based on USB config and descriptor. */
1286 static void ftdi_determine_type(struct usb_serial_port *port)
1287 {
1288 struct ftdi_private *priv = usb_get_serial_port_data(port);
1289 struct usb_serial *serial = port->serial;
1290 struct usb_device *udev = serial->dev;
1291 unsigned version;
1292 unsigned interfaces;
1293
1294 /* Assume it is not the original SIO device for now. */
1295 priv->baud_base = 48000000 / 2;
1296 priv->write_offset = 0;
1297
1298 version = le16_to_cpu(udev->descriptor.bcdDevice);
1299 interfaces = udev->actconfig->desc.bNumInterfaces;
1300 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1301 version, interfaces);
1302 if (interfaces > 1) {
1303 int inter;
1304
1305 /* Multiple interfaces.*/
1306 if (version == 0x0800) {
1307 priv->chip_type = FT4232H;
1308 /* Hi-speed - baud clock runs at 120MHz */
1309 priv->baud_base = 120000000 / 2;
1310 } else if (version == 0x0700) {
1311 priv->chip_type = FT2232H;
1312 /* Hi-speed - baud clock runs at 120MHz */
1313 priv->baud_base = 120000000 / 2;
1314 } else
1315 priv->chip_type = FT2232C;
1316
1317 /* Determine interface code. */
1318 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1319 if (inter == 0) {
1320 priv->interface = INTERFACE_A;
1321 } else if (inter == 1) {
1322 priv->interface = INTERFACE_B;
1323 } else if (inter == 2) {
1324 priv->interface = INTERFACE_C;
1325 } else if (inter == 3) {
1326 priv->interface = INTERFACE_D;
1327 }
1328 /* BM-type devices have a bug where bcdDevice gets set
1329 * to 0x200 when iSerialNumber is 0. */
1330 if (version < 0x500) {
1331 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1332 __func__);
1333 }
1334 } else if (version < 0x200) {
1335 /* Old device. Assume it's the original SIO. */
1336 priv->chip_type = SIO;
1337 priv->baud_base = 12000000 / 16;
1338 priv->write_offset = 1;
1339 } else if (version < 0x400) {
1340 /* Assume it's an FT8U232AM (or FT8U245AM) */
1341 /* (It might be a BM because of the iSerialNumber bug,
1342 * but it will still work as an AM device.) */
1343 priv->chip_type = FT8U232AM;
1344 } else if (version < 0x600) {
1345 /* Assume it's an FT232BM (or FT245BM) */
1346 priv->chip_type = FT232BM;
1347 } else {
1348 /* Assume it's an FT232R */
1349 priv->chip_type = FT232RL;
1350 }
1351 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1352 }
1353
1354
1355 /* Determine the maximum packet size for the device. This depends on the chip
1356 * type and the USB host capabilities. The value should be obtained from the
1357 * device descriptor as the chip will use the appropriate values for the host.*/
1358 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1359 {
1360 struct ftdi_private *priv = usb_get_serial_port_data(port);
1361 struct usb_serial *serial = port->serial;
1362 struct usb_device *udev = serial->dev;
1363
1364 struct usb_interface *interface = serial->interface;
1365 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1366
1367 unsigned num_endpoints;
1368 int i;
1369
1370 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1371 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1372
1373 /* NOTE: some customers have programmed FT232R/FT245R devices
1374 * with an endpoint size of 0 - not good. In this case, we
1375 * want to override the endpoint descriptor setting and use a
1376 * value of 64 for wMaxPacketSize */
1377 for (i = 0; i < num_endpoints; i++) {
1378 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1379 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1380 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1381 if (ep_desc->wMaxPacketSize == 0) {
1382 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1383 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1384 }
1385 }
1386
1387 /* set max packet size based on descriptor */
1388 priv->max_packet_size = ep_desc->wMaxPacketSize;
1389
1390 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1391 }
1392
1393
1394 /*
1395 * ***************************************************************************
1396 * Sysfs Attribute
1397 * ***************************************************************************
1398 */
1399
1400 static ssize_t show_latency_timer(struct device *dev,
1401 struct device_attribute *attr, char *buf)
1402 {
1403 struct usb_serial_port *port = to_usb_serial_port(dev);
1404 struct ftdi_private *priv = usb_get_serial_port_data(port);
1405 if (priv->flags & ASYNC_LOW_LATENCY)
1406 return sprintf(buf, "1\n");
1407 else
1408 return sprintf(buf, "%i\n", priv->latency);
1409 }
1410
1411
1412 /* Write a new value of the latency timer, in units of milliseconds. */
1413 static ssize_t store_latency_timer(struct device *dev,
1414 struct device_attribute *attr, const char *valbuf,
1415 size_t count)
1416 {
1417 struct usb_serial_port *port = to_usb_serial_port(dev);
1418 struct ftdi_private *priv = usb_get_serial_port_data(port);
1419 int v = simple_strtoul(valbuf, NULL, 10);
1420 int rv;
1421
1422 priv->latency = v;
1423 rv = write_latency_timer(port);
1424 if (rv < 0)
1425 return -EIO;
1426 return count;
1427 }
1428
1429 /* Write an event character directly to the FTDI register. The ASCII
1430 value is in the low 8 bits, with the enable bit in the 9th bit. */
1431 static ssize_t store_event_char(struct device *dev,
1432 struct device_attribute *attr, const char *valbuf, size_t count)
1433 {
1434 struct usb_serial_port *port = to_usb_serial_port(dev);
1435 struct ftdi_private *priv = usb_get_serial_port_data(port);
1436 struct usb_device *udev = port->serial->dev;
1437 int v = simple_strtoul(valbuf, NULL, 10);
1438 int rv;
1439
1440 dbg("%s: setting event char = %i", __func__, v);
1441
1442 rv = usb_control_msg(udev,
1443 usb_sndctrlpipe(udev, 0),
1444 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1445 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1446 v, priv->interface,
1447 NULL, 0, WDR_TIMEOUT);
1448 if (rv < 0) {
1449 dbg("Unable to write event character: %i", rv);
1450 return -EIO;
1451 }
1452
1453 return count;
1454 }
1455
1456 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1457 store_latency_timer);
1458 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1459
1460 static int create_sysfs_attrs(struct usb_serial_port *port)
1461 {
1462 struct ftdi_private *priv = usb_get_serial_port_data(port);
1463 int retval = 0;
1464
1465 dbg("%s", __func__);
1466
1467 /* XXX I've no idea if the original SIO supports the event_char
1468 * sysfs parameter, so I'm playing it safe. */
1469 if (priv->chip_type != SIO) {
1470 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1471 retval = device_create_file(&port->dev, &dev_attr_event_char);
1472 if ((!retval) &&
1473 (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 retval = device_create_file(&port->dev,
1479 &dev_attr_latency_timer);
1480 }
1481 }
1482 return retval;
1483 }
1484
1485 static void remove_sysfs_attrs(struct usb_serial_port *port)
1486 {
1487 struct ftdi_private *priv = usb_get_serial_port_data(port);
1488
1489 dbg("%s", __func__);
1490
1491 /* XXX see create_sysfs_attrs */
1492 if (priv->chip_type != SIO) {
1493 device_remove_file(&port->dev, &dev_attr_event_char);
1494 if (priv->chip_type == FT232BM ||
1495 priv->chip_type == FT2232C ||
1496 priv->chip_type == FT232RL ||
1497 priv->chip_type == FT2232H ||
1498 priv->chip_type == FT4232H) {
1499 device_remove_file(&port->dev, &dev_attr_latency_timer);
1500 }
1501 }
1502
1503 }
1504
1505 /*
1506 * ***************************************************************************
1507 * FTDI driver specific functions
1508 * ***************************************************************************
1509 */
1510
1511 /* Probe function to check for special devices */
1512 static int ftdi_sio_probe(struct usb_serial *serial,
1513 const struct usb_device_id *id)
1514 {
1515 struct ftdi_sio_quirk *quirk =
1516 (struct ftdi_sio_quirk *)id->driver_info;
1517
1518 if (quirk && quirk->probe) {
1519 int ret = quirk->probe(serial);
1520 if (ret != 0)
1521 return ret;
1522 }
1523
1524 usb_set_serial_data(serial, (void *)id->driver_info);
1525
1526 return 0;
1527 }
1528
1529 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1530 {
1531 struct ftdi_private *priv;
1532 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1533
1534
1535 dbg("%s", __func__);
1536
1537 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1538 if (!priv) {
1539 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1540 sizeof(struct ftdi_private));
1541 return -ENOMEM;
1542 }
1543
1544 kref_init(&priv->kref);
1545 spin_lock_init(&priv->tx_lock);
1546 mutex_init(&priv->cfg_lock);
1547 init_waitqueue_head(&priv->delta_msr_wait);
1548
1549 priv->flags = ASYNC_LOW_LATENCY;
1550
1551 if (quirk && quirk->port_probe)
1552 quirk->port_probe(priv);
1553
1554 /* Increase the size of read buffers */
1555 kfree(port->bulk_in_buffer);
1556 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1557 if (!port->bulk_in_buffer) {
1558 kfree(priv);
1559 return -ENOMEM;
1560 }
1561 if (port->read_urb) {
1562 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1563 port->read_urb->transfer_buffer_length = BUFSZ;
1564 }
1565
1566 priv->port = port;
1567
1568 /* Free port's existing write urb and transfer buffer. */
1569 if (port->write_urb) {
1570 usb_free_urb(port->write_urb);
1571 port->write_urb = NULL;
1572 }
1573 kfree(port->bulk_out_buffer);
1574 port->bulk_out_buffer = NULL;
1575
1576 usb_set_serial_port_data(port, priv);
1577
1578 ftdi_determine_type(port);
1579 ftdi_set_max_packet_size(port);
1580 if (read_latency_timer(port) < 0)
1581 priv->latency = 16;
1582 create_sysfs_attrs(port);
1583 return 0;
1584 }
1585
1586 /* Setup for the USB-UIRT device, which requires hardwired
1587 * baudrate (38400 gets mapped to 312500) */
1588 /* Called from usbserial:serial_probe */
1589 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1590 {
1591 dbg("%s", __func__);
1592
1593 priv->flags |= ASYNC_SPD_CUST;
1594 priv->custom_divisor = 77;
1595 priv->force_baud = 38400;
1596 } /* ftdi_USB_UIRT_setup */
1597
1598 /* Setup for the HE-TIRA1 device, which requires hardwired
1599 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1600
1601 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1602 {
1603 dbg("%s", __func__);
1604
1605 priv->flags |= ASYNC_SPD_CUST;
1606 priv->custom_divisor = 240;
1607 priv->force_baud = 38400;
1608 priv->force_rtscts = 1;
1609 } /* ftdi_HE_TIRA1_setup */
1610
1611 /*
1612 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1613 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1614 */
1615 static int ndi_latency_timer = 1;
1616
1617 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1618 * baudrate (19200 gets mapped to 1200000).
1619 *
1620 * Called from usbserial:serial_probe.
1621 */
1622 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1623 {
1624 struct usb_device *udev = serial->dev;
1625 int latency = ndi_latency_timer;
1626
1627 if (latency == 0)
1628 latency = 1;
1629 if (latency > 99)
1630 latency = 99;
1631
1632 dbg("%s setting NDI device latency to %d", __func__, latency);
1633 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1634
1635 /* FIXME: errors are not returned */
1636 usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1637 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1638 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1639 latency, 0, NULL, 0, WDR_TIMEOUT);
1640 return 0;
1641 }
1642
1643 /*
1644 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1645 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1646 * userspace using openocd.
1647 */
1648 static int ftdi_jtag_probe(struct usb_serial *serial)
1649 {
1650 struct usb_device *udev = serial->dev;
1651 struct usb_interface *interface = serial->interface;
1652
1653 dbg("%s", __func__);
1654
1655 if (interface == udev->actconfig->interface[0]) {
1656 dev_info(&udev->dev,
1657 "Ignoring serial port reserved for JTAG\n");
1658 return -ENODEV;
1659 }
1660
1661 return 0;
1662 }
1663
1664 /*
1665 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1666 * We have to correct it if we want to read from it.
1667 */
1668 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1669 {
1670 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1671 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1672
1673 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1674 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1675 dev_info(&serial->dev->dev,
1676 "Fixing invalid wMaxPacketSize on read pipe\n");
1677 }
1678
1679 return 0;
1680 }
1681
1682 static void ftdi_sio_priv_release(struct kref *k)
1683 {
1684 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1685
1686 kfree(priv);
1687 }
1688
1689 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1690 {
1691 struct ftdi_private *priv = usb_get_serial_port_data(port);
1692
1693 dbg("%s", __func__);
1694
1695 remove_sysfs_attrs(port);
1696
1697 kref_put(&priv->kref, ftdi_sio_priv_release);
1698
1699 return 0;
1700 }
1701
1702 static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
1703 {
1704 struct urb *urb = port->read_urb;
1705 struct usb_serial *serial = port->serial;
1706 int result;
1707
1708 usb_fill_bulk_urb(urb, serial->dev,
1709 usb_rcvbulkpipe(serial->dev,
1710 port->bulk_in_endpointAddress),
1711 urb->transfer_buffer,
1712 urb->transfer_buffer_length,
1713 ftdi_read_bulk_callback, port);
1714 result = usb_submit_urb(urb, mem_flags);
1715 if (result && result != -EPERM)
1716 dev_err(&port->dev,
1717 "%s - failed submitting read urb, error %d\n",
1718 __func__, result);
1719 return result;
1720 }
1721
1722 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1723 { /* ftdi_open */
1724 struct usb_device *dev = port->serial->dev;
1725 struct ftdi_private *priv = usb_get_serial_port_data(port);
1726 unsigned long flags;
1727 int result;
1728
1729 dbg("%s", __func__);
1730
1731 write_latency_timer(port);
1732
1733 /* No error checking for this (will get errors later anyway) */
1734 /* See ftdi_sio.h for description of what is reset */
1735 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1736 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1737 FTDI_SIO_RESET_SIO,
1738 priv->interface, NULL, 0, WDR_TIMEOUT);
1739
1740 /* Termios defaults are set by usb_serial_init. We don't change
1741 port->tty->termios - this would lose speed settings, etc.
1742 This is same behaviour as serial.c/rs_open() - Kuba */
1743
1744 /* ftdi_set_termios will send usb control messages */
1745 if (tty)
1746 ftdi_set_termios(tty, port, tty->termios);
1747
1748 /* Not throttled */
1749 spin_lock_irqsave(&port->lock, flags);
1750 port->throttled = 0;
1751 port->throttle_req = 0;
1752 spin_unlock_irqrestore(&port->lock, flags);
1753
1754 /* Start reading from the device */
1755 result = ftdi_submit_read_urb(port, GFP_KERNEL);
1756 if (!result)
1757 kref_get(&priv->kref);
1758
1759 return result;
1760 } /* ftdi_open */
1761
1762
1763 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1764 {
1765 struct ftdi_private *priv = usb_get_serial_port_data(port);
1766
1767 mutex_lock(&port->serial->disc_mutex);
1768 if (!port->serial->disconnected) {
1769 /* Disable flow control */
1770 if (!on && usb_control_msg(port->serial->dev,
1771 usb_sndctrlpipe(port->serial->dev, 0),
1772 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1773 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1774 0, priv->interface, NULL, 0,
1775 WDR_TIMEOUT) < 0) {
1776 dev_err(&port->dev, "error from flowcontrol urb\n");
1777 }
1778 /* drop RTS and DTR */
1779 if (on)
1780 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1781 else
1782 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1783 }
1784 mutex_unlock(&port->serial->disc_mutex);
1785 }
1786
1787 /*
1788 * usbserial:__serial_close only calls ftdi_close if the point is open
1789 *
1790 * This only gets called when it is the last close
1791 *
1792 *
1793 */
1794
1795 static void ftdi_close(struct usb_serial_port *port)
1796 { /* ftdi_close */
1797 struct ftdi_private *priv = usb_get_serial_port_data(port);
1798
1799 dbg("%s", __func__);
1800
1801 /* shutdown our bulk read */
1802 usb_kill_urb(port->read_urb);
1803 kref_put(&priv->kref, ftdi_sio_priv_release);
1804 } /* ftdi_close */
1805
1806
1807
1808 /* The SIO requires the first byte to have:
1809 * B0 1
1810 * B1 0
1811 * B2..7 length of message excluding byte 0
1812 *
1813 * The new devices do not require this byte
1814 */
1815 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1816 const unsigned char *buf, int count)
1817 { /* ftdi_write */
1818 struct ftdi_private *priv = usb_get_serial_port_data(port);
1819 struct urb *urb;
1820 unsigned char *buffer;
1821 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1822 int status;
1823 int transfer_size;
1824 unsigned long flags;
1825
1826 dbg("%s port %d, %d bytes", __func__, port->number, count);
1827
1828 if (count == 0) {
1829 dbg("write request of 0 bytes");
1830 return 0;
1831 }
1832 spin_lock_irqsave(&priv->tx_lock, flags);
1833 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1834 spin_unlock_irqrestore(&priv->tx_lock, flags);
1835 dbg("%s - write limit hit", __func__);
1836 return 0;
1837 }
1838 priv->tx_outstanding_urbs++;
1839 spin_unlock_irqrestore(&priv->tx_lock, flags);
1840
1841 data_offset = priv->write_offset;
1842 dbg("data_offset set to %d", data_offset);
1843
1844 /* Determine total transfer size */
1845 transfer_size = count;
1846 if (data_offset > 0) {
1847 /* Original sio needs control bytes too... */
1848 transfer_size += (data_offset *
1849 ((count + (priv->max_packet_size - 1 - data_offset)) /
1850 (priv->max_packet_size - data_offset)));
1851 }
1852
1853 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1854 if (!buffer) {
1855 dev_err(&port->dev,
1856 "%s ran out of kernel memory for urb ...\n", __func__);
1857 count = -ENOMEM;
1858 goto error_no_buffer;
1859 }
1860
1861 urb = usb_alloc_urb(0, GFP_ATOMIC);
1862 if (!urb) {
1863 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1864 count = -ENOMEM;
1865 goto error_no_urb;
1866 }
1867
1868 /* Copy data */
1869 if (data_offset > 0) {
1870 /* Original sio requires control byte at start of
1871 each packet. */
1872 int user_pktsz = priv->max_packet_size - data_offset;
1873 int todo = count;
1874 unsigned char *first_byte = buffer;
1875 const unsigned char *current_position = buf;
1876
1877 while (todo > 0) {
1878 if (user_pktsz > todo)
1879 user_pktsz = todo;
1880 /* Write the control byte at the front of the packet*/
1881 *first_byte = 1 | ((user_pktsz) << 2);
1882 /* Copy data for packet */
1883 memcpy(first_byte + data_offset,
1884 current_position, user_pktsz);
1885 first_byte += user_pktsz + data_offset;
1886 current_position += user_pktsz;
1887 todo -= user_pktsz;
1888 }
1889 } else {
1890 /* No control byte required. */
1891 /* Copy in the data to send */
1892 memcpy(buffer, buf, count);
1893 }
1894
1895 usb_serial_debug_data(debug, &port->dev, __func__,
1896 transfer_size, buffer);
1897
1898 /* fill the buffer and send it */
1899 usb_fill_bulk_urb(urb, port->serial->dev,
1900 usb_sndbulkpipe(port->serial->dev,
1901 port->bulk_out_endpointAddress),
1902 buffer, transfer_size,
1903 ftdi_write_bulk_callback, port);
1904
1905 status = usb_submit_urb(urb, GFP_ATOMIC);
1906 if (status) {
1907 dev_err(&port->dev,
1908 "%s - failed submitting write urb, error %d\n",
1909 __func__, status);
1910 count = status;
1911 goto error;
1912 } else {
1913 spin_lock_irqsave(&priv->tx_lock, flags);
1914 priv->tx_outstanding_bytes += count;
1915 spin_unlock_irqrestore(&priv->tx_lock, flags);
1916 }
1917
1918 /* we are done with this urb, so let the host driver
1919 * really free it when it is finished with it */
1920 usb_free_urb(urb);
1921
1922 dbg("%s write returning: %d", __func__, count);
1923 return count;
1924 error:
1925 usb_free_urb(urb);
1926 error_no_urb:
1927 kfree(buffer);
1928 error_no_buffer:
1929 spin_lock_irqsave(&priv->tx_lock, flags);
1930 priv->tx_outstanding_urbs--;
1931 spin_unlock_irqrestore(&priv->tx_lock, flags);
1932 return count;
1933 } /* ftdi_write */
1934
1935
1936 /* This function may get called when the device is closed */
1937
1938 static void ftdi_write_bulk_callback(struct urb *urb)
1939 {
1940 unsigned long flags;
1941 struct usb_serial_port *port = urb->context;
1942 struct ftdi_private *priv;
1943 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1944 unsigned long countback;
1945 int status = urb->status;
1946
1947 /* free up the transfer buffer, as usb_free_urb() does not do this */
1948 kfree(urb->transfer_buffer);
1949
1950 dbg("%s - port %d", __func__, port->number);
1951
1952 priv = usb_get_serial_port_data(port);
1953 if (!priv) {
1954 dbg("%s - bad port private data pointer - exiting", __func__);
1955 return;
1956 }
1957 /* account for transferred data */
1958 countback = urb->transfer_buffer_length;
1959 data_offset = priv->write_offset;
1960 if (data_offset > 0) {
1961 /* Subtract the control bytes */
1962 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
1963 }
1964 spin_lock_irqsave(&priv->tx_lock, flags);
1965 --priv->tx_outstanding_urbs;
1966 priv->tx_outstanding_bytes -= countback;
1967 spin_unlock_irqrestore(&priv->tx_lock, flags);
1968
1969 if (status) {
1970 dbg("nonzero write bulk status received: %d", status);
1971 }
1972
1973 usb_serial_port_softint(port);
1974 } /* ftdi_write_bulk_callback */
1975
1976
1977 static int ftdi_write_room(struct tty_struct *tty)
1978 {
1979 struct usb_serial_port *port = tty->driver_data;
1980 struct ftdi_private *priv = usb_get_serial_port_data(port);
1981 int room;
1982 unsigned long flags;
1983
1984 dbg("%s - port %d", __func__, port->number);
1985
1986 spin_lock_irqsave(&priv->tx_lock, flags);
1987 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1988 /*
1989 * We really can take anything the user throws at us
1990 * but let's pick a nice big number to tell the tty
1991 * layer that we have lots of free space
1992 */
1993 room = 2048;
1994 } else {
1995 room = 0;
1996 }
1997 spin_unlock_irqrestore(&priv->tx_lock, flags);
1998 return room;
1999 }
2000
2001 static int ftdi_chars_in_buffer(struct tty_struct *tty)
2002 {
2003 struct usb_serial_port *port = tty->driver_data;
2004 struct ftdi_private *priv = usb_get_serial_port_data(port);
2005 int buffered;
2006 unsigned long flags;
2007
2008 dbg("%s - port %d", __func__, port->number);
2009
2010 spin_lock_irqsave(&priv->tx_lock, flags);
2011 buffered = (int)priv->tx_outstanding_bytes;
2012 spin_unlock_irqrestore(&priv->tx_lock, flags);
2013 if (buffered < 0) {
2014 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
2015 __func__);
2016 buffered = 0;
2017 }
2018 return buffered;
2019 }
2020
2021 static int ftdi_process_packet(struct tty_struct *tty,
2022 struct usb_serial_port *port, struct ftdi_private *priv,
2023 char *packet, int len)
2024 {
2025 int i;
2026 char status;
2027 char flag;
2028 char *ch;
2029
2030 dbg("%s - port %d", __func__, port->number);
2031
2032 if (len < 2) {
2033 dbg("malformed packet");
2034 return 0;
2035 }
2036
2037 /* Compare new line status to the old one, signal if different/
2038 N.B. packet may be processed more than once, but differences
2039 are only processed once. */
2040 status = packet[0] & FTDI_STATUS_B0_MASK;
2041 if (status != priv->prev_status) {
2042 priv->diff_status |= status ^ priv->prev_status;
2043 wake_up_interruptible(&priv->delta_msr_wait);
2044 priv->prev_status = status;
2045 }
2046
2047 /*
2048 * Although the device uses a bitmask and hence can have multiple
2049 * errors on a packet - the order here sets the priority the error is
2050 * returned to the tty layer.
2051 */
2052 flag = TTY_NORMAL;
2053 if (packet[1] & FTDI_RS_OE) {
2054 flag = TTY_OVERRUN;
2055 dbg("OVERRRUN error");
2056 }
2057 if (packet[1] & FTDI_RS_BI) {
2058 flag = TTY_BREAK;
2059 dbg("BREAK received");
2060 usb_serial_handle_break(port);
2061 }
2062 if (packet[1] & FTDI_RS_PE) {
2063 flag = TTY_PARITY;
2064 dbg("PARITY error");
2065 }
2066 if (packet[1] & FTDI_RS_FE) {
2067 flag = TTY_FRAME;
2068 dbg("FRAMING error");
2069 }
2070
2071 len -= 2;
2072 if (!len)
2073 return 0; /* status only */
2074 ch = packet + 2;
2075
2076 if (!(port->console && port->sysrq) && flag == TTY_NORMAL)
2077 tty_insert_flip_string(tty, ch, len);
2078 else {
2079 for (i = 0; i < len; i++, ch++) {
2080 if (!usb_serial_handle_sysrq_char(tty, port, *ch))
2081 tty_insert_flip_char(tty, *ch, flag);
2082 }
2083 }
2084 return len;
2085 }
2086
2087 static void ftdi_process_read(struct usb_serial_port *port)
2088 {
2089 struct urb *urb = port->read_urb;
2090 struct tty_struct *tty;
2091 struct ftdi_private *priv = usb_get_serial_port_data(port);
2092 char *data = (char *)urb->transfer_buffer;
2093 int i;
2094 int len;
2095 int count = 0;
2096
2097 tty = tty_port_tty_get(&port->port);
2098 if (!tty)
2099 return;
2100
2101 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2102 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2103 count += ftdi_process_packet(tty, port, priv, &data[i], len);
2104 }
2105
2106 if (count)
2107 tty_flip_buffer_push(tty);
2108 tty_kref_put(tty);
2109 }
2110
2111 static void ftdi_read_bulk_callback(struct urb *urb)
2112 {
2113 struct usb_serial_port *port = urb->context;
2114 unsigned long flags;
2115
2116 dbg("%s - port %d", __func__, port->number);
2117
2118 if (urb->status) {
2119 dbg("%s - nonzero read bulk status received: %d",
2120 __func__, urb->status);
2121 return;
2122 }
2123
2124 usb_serial_debug_data(debug, &port->dev, __func__,
2125 urb->actual_length, urb->transfer_buffer);
2126 ftdi_process_read(port);
2127
2128 spin_lock_irqsave(&port->lock, flags);
2129 port->throttled = port->throttle_req;
2130 if (!port->throttled) {
2131 spin_unlock_irqrestore(&port->lock, flags);
2132 ftdi_submit_read_urb(port, GFP_ATOMIC);
2133 } else
2134 spin_unlock_irqrestore(&port->lock, flags);
2135 }
2136
2137 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2138 {
2139 struct usb_serial_port *port = tty->driver_data;
2140 struct ftdi_private *priv = usb_get_serial_port_data(port);
2141 __u16 urb_value;
2142
2143 /* break_state = -1 to turn on break, and 0 to turn off break */
2144 /* see drivers/char/tty_io.c to see it used */
2145 /* last_set_data_urb_value NEVER has the break bit set in it */
2146
2147 if (break_state)
2148 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2149 else
2150 urb_value = priv->last_set_data_urb_value;
2151
2152 if (usb_control_msg(port->serial->dev,
2153 usb_sndctrlpipe(port->serial->dev, 0),
2154 FTDI_SIO_SET_DATA_REQUEST,
2155 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2156 urb_value , priv->interface,
2157 NULL, 0, WDR_TIMEOUT) < 0) {
2158 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2159 "(state was %d)\n", __func__, break_state);
2160 }
2161
2162 dbg("%s break state is %d - urb is %d", __func__,
2163 break_state, urb_value);
2164
2165 }
2166
2167
2168 /* old_termios contains the original termios settings and tty->termios contains
2169 * the new setting to be used
2170 * WARNING: set_termios calls this with old_termios in kernel space
2171 */
2172
2173 static void ftdi_set_termios(struct tty_struct *tty,
2174 struct usb_serial_port *port, struct ktermios *old_termios)
2175 { /* ftdi_termios */
2176 struct usb_device *dev = port->serial->dev;
2177 struct ftdi_private *priv = usb_get_serial_port_data(port);
2178 struct ktermios *termios = tty->termios;
2179 unsigned int cflag = termios->c_cflag;
2180 __u16 urb_value; /* will hold the new flags */
2181
2182 /* Added for xon/xoff support */
2183 unsigned int iflag = termios->c_iflag;
2184 unsigned char vstop;
2185 unsigned char vstart;
2186
2187 dbg("%s", __func__);
2188
2189 /* Force baud rate if this device requires it, unless it is set to
2190 B0. */
2191 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2192 dbg("%s: forcing baud rate for this device", __func__);
2193 tty_encode_baud_rate(tty, priv->force_baud,
2194 priv->force_baud);
2195 }
2196
2197 /* Force RTS-CTS if this device requires it. */
2198 if (priv->force_rtscts) {
2199 dbg("%s: forcing rtscts for this device", __func__);
2200 termios->c_cflag |= CRTSCTS;
2201 }
2202
2203 cflag = termios->c_cflag;
2204
2205 /* FIXME -For this cut I don't care if the line is really changing or
2206 not - so just do the change regardless - should be able to
2207 compare old_termios and tty->termios */
2208 /* NOTE These routines can get interrupted by
2209 ftdi_sio_read_bulk_callback - need to examine what this means -
2210 don't see any problems yet */
2211
2212 /* Set number of data bits, parity, stop bits */
2213
2214 urb_value = 0;
2215 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2216 FTDI_SIO_SET_DATA_STOP_BITS_1);
2217 if (cflag & PARENB) {
2218 if (cflag & CMSPAR)
2219 urb_value |= cflag & PARODD ?
2220 FTDI_SIO_SET_DATA_PARITY_MARK :
2221 FTDI_SIO_SET_DATA_PARITY_SPACE;
2222 else
2223 urb_value |= cflag & PARODD ?
2224 FTDI_SIO_SET_DATA_PARITY_ODD :
2225 FTDI_SIO_SET_DATA_PARITY_EVEN;
2226 } else {
2227 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2228 }
2229 if (cflag & CSIZE) {
2230 switch (cflag & CSIZE) {
2231 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2232 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2233 default:
2234 dev_err(&port->dev, "CSIZE was set but not CS7-CS8\n");
2235 }
2236 }
2237
2238 /* This is needed by the break command since it uses the same command
2239 - but is or'ed with this value */
2240 priv->last_set_data_urb_value = urb_value;
2241
2242 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2243 FTDI_SIO_SET_DATA_REQUEST,
2244 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2245 urb_value , priv->interface,
2246 NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
2247 dev_err(&port->dev, "%s FAILED to set "
2248 "databits/stopbits/parity\n", __func__);
2249 }
2250
2251 /* Now do the baudrate */
2252 if ((cflag & CBAUD) == B0) {
2253 /* Disable flow control */
2254 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2255 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2256 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2257 0, priv->interface,
2258 NULL, 0, WDR_TIMEOUT) < 0) {
2259 dev_err(&port->dev,
2260 "%s error from disable flowcontrol urb\n",
2261 __func__);
2262 }
2263 /* Drop RTS and DTR */
2264 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2265 } else {
2266 /* set the baudrate determined before */
2267 if (change_speed(tty, port))
2268 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2269 __func__);
2270 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2271 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2272 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2273 }
2274
2275 /* Set flow control */
2276 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2277 if (cflag & CRTSCTS) {
2278 dbg("%s Setting to CRTSCTS flow control", __func__);
2279 if (usb_control_msg(dev,
2280 usb_sndctrlpipe(dev, 0),
2281 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2282 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2283 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2284 NULL, 0, WDR_TIMEOUT) < 0) {
2285 dev_err(&port->dev,
2286 "urb failed to set to rts/cts flow control\n");
2287 }
2288
2289 } else {
2290 /*
2291 * Xon/Xoff code
2292 *
2293 * Check the IXOFF status in the iflag component of the
2294 * termios structure. If IXOFF is not set, the pre-xon/xoff
2295 * code is executed.
2296 */
2297 if (iflag & IXOFF) {
2298 dbg("%s request to enable xonxoff iflag=%04x",
2299 __func__, iflag);
2300 /* Try to enable the XON/XOFF on the ftdi_sio
2301 * Set the vstart and vstop -- could have been done up
2302 * above where a lot of other dereferencing is done but
2303 * that would be very inefficient as vstart and vstop
2304 * are not always needed.
2305 */
2306 vstart = termios->c_cc[VSTART];
2307 vstop = termios->c_cc[VSTOP];
2308 urb_value = (vstop << 8) | (vstart);
2309
2310 if (usb_control_msg(dev,
2311 usb_sndctrlpipe(dev, 0),
2312 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2313 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2314 urb_value , (FTDI_SIO_XON_XOFF_HS
2315 | priv->interface),
2316 NULL, 0, WDR_TIMEOUT) < 0) {
2317 dev_err(&port->dev, "urb failed to set to "
2318 "xon/xoff flow control\n");
2319 }
2320 } else {
2321 /* else clause to only run if cflag ! CRTSCTS and iflag
2322 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2323 * stack - not by device */
2324 dbg("%s Turning off hardware flow control", __func__);
2325 if (usb_control_msg(dev,
2326 usb_sndctrlpipe(dev, 0),
2327 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2328 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2329 0, priv->interface,
2330 NULL, 0, WDR_TIMEOUT) < 0) {
2331 dev_err(&port->dev,
2332 "urb failed to clear flow control\n");
2333 }
2334 }
2335
2336 }
2337 return;
2338 }
2339
2340 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2341 {
2342 struct usb_serial_port *port = tty->driver_data;
2343 struct ftdi_private *priv = usb_get_serial_port_data(port);
2344 unsigned char *buf;
2345 int len;
2346 int ret;
2347
2348 dbg("%s TIOCMGET", __func__);
2349
2350 buf = kmalloc(2, GFP_KERNEL);
2351 if (!buf)
2352 return -ENOMEM;
2353 /*
2354 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2355 * the same format as the data returned from the in point.
2356 */
2357 switch (priv->chip_type) {
2358 case SIO:
2359 len = 1;
2360 break;
2361 case FT8U232AM:
2362 case FT232BM:
2363 case FT2232C:
2364 case FT232RL:
2365 case FT2232H:
2366 case FT4232H:
2367 len = 2;
2368 break;
2369 default:
2370 ret = -EFAULT;
2371 goto out;
2372 }
2373
2374 ret = usb_control_msg(port->serial->dev,
2375 usb_rcvctrlpipe(port->serial->dev, 0),
2376 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2377 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2378 0, priv->interface,
2379 buf, len, WDR_TIMEOUT);
2380 if (ret < 0)
2381 goto out;
2382
2383 ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2384 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2385 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2386 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2387 priv->last_dtr_rts;
2388 out:
2389 kfree(buf);
2390 return ret;
2391 }
2392
2393 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2394 unsigned int set, unsigned int clear)
2395 {
2396 struct usb_serial_port *port = tty->driver_data;
2397 dbg("%s TIOCMSET", __func__);
2398 return update_mctrl(port, set, clear);
2399 }
2400
2401
2402 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2403 unsigned int cmd, unsigned long arg)
2404 {
2405 struct usb_serial_port *port = tty->driver_data;
2406 struct ftdi_private *priv = usb_get_serial_port_data(port);
2407
2408 dbg("%s cmd 0x%04x", __func__, cmd);
2409
2410 /* Based on code from acm.c and others */
2411 switch (cmd) {
2412
2413 case TIOCGSERIAL: /* gets serial port data */
2414 return get_serial_info(port,
2415 (struct serial_struct __user *) arg);
2416
2417 case TIOCSSERIAL: /* sets serial port data */
2418 return set_serial_info(tty, port,
2419 (struct serial_struct __user *) arg);
2420
2421 /*
2422 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2423 * - mask passed in arg for lines of interest
2424 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2425 * Caller should use TIOCGICOUNT to see which one it was.
2426 *
2427 * This code is borrowed from linux/drivers/char/serial.c
2428 */
2429 case TIOCMIWAIT:
2430 while (priv != NULL) {
2431 interruptible_sleep_on(&priv->delta_msr_wait);
2432 /* see if a signal did it */
2433 if (signal_pending(current))
2434 return -ERESTARTSYS;
2435 else {
2436 char diff = priv->diff_status;
2437
2438 if (diff == 0)
2439 return -EIO; /* no change => error */
2440
2441 /* Consume all events */
2442 priv->diff_status = 0;
2443
2444 /* Return 0 if caller wanted to know about
2445 these bits */
2446 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2447 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2448 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2449 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2450 return 0;
2451 }
2452 /*
2453 * Otherwise caller can't care less about what
2454 * happened,and so we continue to wait for more
2455 * events.
2456 */
2457 }
2458 }
2459 return 0;
2460 default:
2461 break;
2462 }
2463 /* This is not necessarily an error - turns out the higher layers
2464 * will do some ioctls themselves (see comment above)
2465 */
2466 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2467 return -ENOIOCTLCMD;
2468 }
2469
2470 static void ftdi_throttle(struct tty_struct *tty)
2471 {
2472 struct usb_serial_port *port = tty->driver_data;
2473 unsigned long flags;
2474
2475 dbg("%s - port %d", __func__, port->number);
2476
2477 spin_lock_irqsave(&port->lock, flags);
2478 port->throttle_req = 1;
2479 spin_unlock_irqrestore(&port->lock, flags);
2480 }
2481
2482 void ftdi_unthrottle(struct tty_struct *tty)
2483 {
2484 struct usb_serial_port *port = tty->driver_data;
2485 int was_throttled;
2486 unsigned long flags;
2487
2488 dbg("%s - port %d", __func__, port->number);
2489
2490 spin_lock_irqsave(&port->lock, flags);
2491 was_throttled = port->throttled;
2492 port->throttled = port->throttle_req = 0;
2493 spin_unlock_irqrestore(&port->lock, flags);
2494
2495 if (was_throttled)
2496 ftdi_submit_read_urb(port, GFP_KERNEL);
2497 }
2498
2499 static int __init ftdi_init(void)
2500 {
2501 int retval;
2502
2503 dbg("%s", __func__);
2504 if (vendor > 0 && product > 0) {
2505 /* Add user specified VID/PID to reserved element of table. */
2506 int i;
2507 for (i = 0; id_table_combined[i].idVendor; i++)
2508 ;
2509 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2510 id_table_combined[i].idVendor = vendor;
2511 id_table_combined[i].idProduct = product;
2512 }
2513 retval = usb_serial_register(&ftdi_sio_device);
2514 if (retval)
2515 goto failed_sio_register;
2516 retval = usb_register(&ftdi_driver);
2517 if (retval)
2518 goto failed_usb_register;
2519
2520 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2521 DRIVER_DESC "\n");
2522 return 0;
2523 failed_usb_register:
2524 usb_serial_deregister(&ftdi_sio_device);
2525 failed_sio_register:
2526 return retval;
2527 }
2528
2529
2530 static void __exit ftdi_exit(void)
2531 {
2532
2533 dbg("%s", __func__);
2534
2535 usb_deregister(&ftdi_driver);
2536 usb_serial_deregister(&ftdi_sio_device);
2537
2538 }
2539
2540
2541 module_init(ftdi_init);
2542 module_exit(ftdi_exit);
2543
2544 MODULE_AUTHOR(DRIVER_AUTHOR);
2545 MODULE_DESCRIPTION(DRIVER_DESC);
2546 MODULE_LICENSE("GPL");
2547
2548 module_param(debug, bool, S_IRUGO | S_IWUSR);
2549 MODULE_PARM_DESC(debug, "Debug enabled or not");
2550 module_param(vendor, ushort, 0);
2551 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2552 __MODULE_STRING(FTDI_VID)")");
2553 module_param(product, ushort, 0);
2554 MODULE_PARM_DESC(product, "User specified product ID");
2555
2556 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2557 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
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