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USB: serial: allow drivers to define bulk buffer sizes
[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() and change_speed() */
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(CONTEC_VID, CONTEC_COM1USBH_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
663 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
664 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
665 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
666 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
667 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
668 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
669 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
670 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
671 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
672 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
673 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
674 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
675 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
676 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
677 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
678 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
679 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
680 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
681 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
682 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
683 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
684 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
685 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
686 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
687 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
688 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
689 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
690 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
691 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
692 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
693 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
694 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
695 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
696 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
697 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
698 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
699 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
700 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
701 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
702 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
703 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
704 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
705 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
706 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
707 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
708 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
709 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
710 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
711 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
712 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
713 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
714 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
715 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
716 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
717 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
718 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
719 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
720 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
721 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
722 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
723 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
724 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
725 { USB_DEVICE(ATMEL_VID, STK541_PID) },
726 { USB_DEVICE(DE_VID, STB_PID) },
727 { USB_DEVICE(DE_VID, WHT_PID) },
728 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
729 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
730 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
731 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
732 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
733 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
734 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
735 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
736 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
737 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
738 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
739 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
740 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
741 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
742 { USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
743 { USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
744 { USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
745 { USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
746 { }, /* Optional parameter entry */
747 { } /* Terminating entry */
748 };
749
750 MODULE_DEVICE_TABLE(usb, id_table_combined);
751
752 static struct usb_driver ftdi_driver = {
753 .name = "ftdi_sio",
754 .probe = usb_serial_probe,
755 .disconnect = usb_serial_disconnect,
756 .id_table = id_table_combined,
757 .no_dynamic_id = 1,
758 };
759
760 static const char *ftdi_chip_name[] = {
761 [SIO] = "SIO", /* the serial part of FT8U100AX */
762 [FT8U232AM] = "FT8U232AM",
763 [FT232BM] = "FT232BM",
764 [FT2232C] = "FT2232C",
765 [FT232RL] = "FT232RL",
766 [FT2232H] = "FT2232H",
767 [FT4232H] = "FT4232H"
768 };
769
770
771 /* Used for TIOCMIWAIT */
772 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
773 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
774 /* End TIOCMIWAIT */
775
776 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
777 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
778
779 /* function prototypes for a FTDI serial converter */
780 static int ftdi_sio_probe(struct usb_serial *serial,
781 const struct usb_device_id *id);
782 static int ftdi_sio_port_probe(struct usb_serial_port *port);
783 static int ftdi_sio_port_remove(struct usb_serial_port *port);
784 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
785 static void ftdi_close(struct usb_serial_port *port);
786 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
787 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
788 const unsigned char *buf, int count);
789 static int ftdi_write_room(struct tty_struct *tty);
790 static int ftdi_chars_in_buffer(struct tty_struct *tty);
791 static void ftdi_write_bulk_callback(struct urb *urb);
792 static void ftdi_read_bulk_callback(struct urb *urb);
793 static void ftdi_process_read(struct usb_serial_port *port);
794 static void ftdi_set_termios(struct tty_struct *tty,
795 struct usb_serial_port *port, struct ktermios *old);
796 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
797 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
798 unsigned int set, unsigned int clear);
799 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
800 unsigned int cmd, unsigned long arg);
801 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
802 static void ftdi_throttle(struct tty_struct *tty);
803 static void ftdi_unthrottle(struct tty_struct *tty);
804
805 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
806 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
807 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
808 static __u32 ftdi_232bm_baud_to_divisor(int baud);
809 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
810 static __u32 ftdi_2232h_baud_to_divisor(int baud);
811
812 static struct usb_serial_driver ftdi_sio_device = {
813 .driver = {
814 .owner = THIS_MODULE,
815 .name = "ftdi_sio",
816 },
817 .description = "FTDI USB Serial Device",
818 .usb_driver = &ftdi_driver,
819 .id_table = id_table_combined,
820 .num_ports = 1,
821 .bulk_in_size = 512,
822 .probe = ftdi_sio_probe,
823 .port_probe = ftdi_sio_port_probe,
824 .port_remove = ftdi_sio_port_remove,
825 .open = ftdi_open,
826 .close = ftdi_close,
827 .dtr_rts = ftdi_dtr_rts,
828 .throttle = ftdi_throttle,
829 .unthrottle = ftdi_unthrottle,
830 .write = ftdi_write,
831 .write_room = ftdi_write_room,
832 .chars_in_buffer = ftdi_chars_in_buffer,
833 .read_bulk_callback = ftdi_read_bulk_callback,
834 .write_bulk_callback = ftdi_write_bulk_callback,
835 .tiocmget = ftdi_tiocmget,
836 .tiocmset = ftdi_tiocmset,
837 .ioctl = ftdi_ioctl,
838 .set_termios = ftdi_set_termios,
839 .break_ctl = ftdi_break_ctl,
840 };
841
842
843 #define WDR_TIMEOUT 5000 /* default urb timeout */
844 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
845
846 /* High and low are for DTR, RTS etc etc */
847 #define HIGH 1
848 #define LOW 0
849
850 /* number of outstanding urbs to prevent userspace DoS from happening */
851 #define URB_UPPER_LIMIT 42
852
853 /*
854 * ***************************************************************************
855 * Utility functions
856 * ***************************************************************************
857 */
858
859 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
860 {
861 unsigned short int divisor;
862 /* divisor shifted 3 bits to the left */
863 int divisor3 = base / 2 / baud;
864 if ((divisor3 & 0x7) == 7)
865 divisor3++; /* round x.7/8 up to x+1 */
866 divisor = divisor3 >> 3;
867 divisor3 &= 0x7;
868 if (divisor3 == 1)
869 divisor |= 0xc000;
870 else if (divisor3 >= 4)
871 divisor |= 0x4000;
872 else if (divisor3 != 0)
873 divisor |= 0x8000;
874 else if (divisor == 1)
875 divisor = 0; /* special case for maximum baud rate */
876 return divisor;
877 }
878
879 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
880 {
881 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
882 }
883
884 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
885 {
886 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
887 __u32 divisor;
888 /* divisor shifted 3 bits to the left */
889 int divisor3 = base / 2 / baud;
890 divisor = divisor3 >> 3;
891 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
892 /* Deal with special cases for highest baud rates. */
893 if (divisor == 1)
894 divisor = 0;
895 else if (divisor == 0x4001)
896 divisor = 1;
897 return divisor;
898 }
899
900 static __u32 ftdi_232bm_baud_to_divisor(int baud)
901 {
902 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
903 }
904
905 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
906 {
907 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
908 __u32 divisor;
909 int divisor3;
910
911 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
912 divisor3 = (base / 10 / baud) * 8;
913
914 divisor = divisor3 >> 3;
915 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
916 /* Deal with special cases for highest baud rates. */
917 if (divisor == 1)
918 divisor = 0;
919 else if (divisor == 0x4001)
920 divisor = 1;
921 /*
922 * Set this bit to turn off a divide by 2.5 on baud rate generator
923 * This enables baud rates up to 12Mbaud but cannot reach below 1200
924 * baud with this bit set
925 */
926 divisor |= 0x00020000;
927 return divisor;
928 }
929
930 static __u32 ftdi_2232h_baud_to_divisor(int baud)
931 {
932 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
933 }
934
935 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
936 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
937
938 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
939 unsigned int clear)
940 {
941 struct ftdi_private *priv = usb_get_serial_port_data(port);
942 unsigned urb_value;
943 int rv;
944
945 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
946 dbg("%s - DTR|RTS not being set|cleared", __func__);
947 return 0; /* no change */
948 }
949
950 clear &= ~set; /* 'set' takes precedence over 'clear' */
951 urb_value = 0;
952 if (clear & TIOCM_DTR)
953 urb_value |= FTDI_SIO_SET_DTR_LOW;
954 if (clear & TIOCM_RTS)
955 urb_value |= FTDI_SIO_SET_RTS_LOW;
956 if (set & TIOCM_DTR)
957 urb_value |= FTDI_SIO_SET_DTR_HIGH;
958 if (set & TIOCM_RTS)
959 urb_value |= FTDI_SIO_SET_RTS_HIGH;
960 rv = usb_control_msg(port->serial->dev,
961 usb_sndctrlpipe(port->serial->dev, 0),
962 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
963 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
964 urb_value, priv->interface,
965 NULL, 0, WDR_TIMEOUT);
966 if (rv < 0) {
967 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
968 __func__,
969 (set & TIOCM_DTR) ? "HIGH" :
970 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
971 (set & TIOCM_RTS) ? "HIGH" :
972 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
973 } else {
974 dbg("%s - DTR %s, RTS %s", __func__,
975 (set & TIOCM_DTR) ? "HIGH" :
976 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
977 (set & TIOCM_RTS) ? "HIGH" :
978 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
979 /* FIXME: locking on last_dtr_rts */
980 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
981 }
982 return rv;
983 }
984
985
986 static __u32 get_ftdi_divisor(struct tty_struct *tty,
987 struct usb_serial_port *port)
988 { /* get_ftdi_divisor */
989 struct ftdi_private *priv = usb_get_serial_port_data(port);
990 __u32 div_value = 0;
991 int div_okay = 1;
992 int baud;
993
994 /*
995 * The logic involved in setting the baudrate can be cleanly split into
996 * 3 steps.
997 * 1. Standard baud rates are set in tty->termios->c_cflag
998 * 2. If these are not enough, you can set any speed using alt_speed as
999 * follows:
1000 * - set tty->termios->c_cflag speed to B38400
1001 * - set your real speed in tty->alt_speed; it gets ignored when
1002 * alt_speed==0, (or)
1003 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1004 * follows:
1005 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1006 * this just sets alt_speed to (HI: 57600, VHI: 115200,
1007 * SHI: 230400, WARP: 460800)
1008 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1009 * 3. You can also set baud rate by setting custom divisor as follows
1010 * - set tty->termios->c_cflag speed to B38400
1011 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1012 * follows:
1013 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1014 * o custom_divisor set to baud_base / your_new_baudrate
1015 * ** Step 3 is done courtesy of code borrowed from serial.c
1016 * I should really spend some time and separate + move this common
1017 * code to serial.c, it is replicated in nearly every serial driver
1018 * you see.
1019 */
1020
1021 /* 1. Get the baud rate from the tty settings, this observes
1022 alt_speed hack */
1023
1024 baud = tty_get_baud_rate(tty);
1025 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1026
1027 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1028 if needed */
1029
1030 if (baud == 38400 &&
1031 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1032 (priv->custom_divisor)) {
1033 baud = priv->baud_base / priv->custom_divisor;
1034 dbg("%s - custom divisor %d sets baud rate to %d",
1035 __func__, priv->custom_divisor, baud);
1036 }
1037
1038 /* 3. Convert baudrate to device-specific divisor */
1039
1040 if (!baud)
1041 baud = 9600;
1042 switch (priv->chip_type) {
1043 case SIO: /* SIO chip */
1044 switch (baud) {
1045 case 300: div_value = ftdi_sio_b300; break;
1046 case 600: div_value = ftdi_sio_b600; break;
1047 case 1200: div_value = ftdi_sio_b1200; break;
1048 case 2400: div_value = ftdi_sio_b2400; break;
1049 case 4800: div_value = ftdi_sio_b4800; break;
1050 case 9600: div_value = ftdi_sio_b9600; break;
1051 case 19200: div_value = ftdi_sio_b19200; break;
1052 case 38400: div_value = ftdi_sio_b38400; break;
1053 case 57600: div_value = ftdi_sio_b57600; break;
1054 case 115200: div_value = ftdi_sio_b115200; break;
1055 } /* baud */
1056 if (div_value == 0) {
1057 dbg("%s - Baudrate (%d) requested is not supported",
1058 __func__, baud);
1059 div_value = ftdi_sio_b9600;
1060 baud = 9600;
1061 div_okay = 0;
1062 }
1063 break;
1064 case FT8U232AM: /* 8U232AM chip */
1065 if (baud <= 3000000) {
1066 div_value = ftdi_232am_baud_to_divisor(baud);
1067 } else {
1068 dbg("%s - Baud rate too high!", __func__);
1069 baud = 9600;
1070 div_value = ftdi_232am_baud_to_divisor(9600);
1071 div_okay = 0;
1072 }
1073 break;
1074 case FT232BM: /* FT232BM chip */
1075 case FT2232C: /* FT2232C chip */
1076 case FT232RL:
1077 if (baud <= 3000000) {
1078 __u16 product_id = le16_to_cpu(
1079 port->serial->dev->descriptor.idProduct);
1080 if (((FTDI_NDI_HUC_PID == product_id) ||
1081 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1082 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1083 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1084 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1085 (baud == 19200)) {
1086 baud = 1200000;
1087 }
1088 div_value = ftdi_232bm_baud_to_divisor(baud);
1089 } else {
1090 dbg("%s - Baud rate too high!", __func__);
1091 div_value = ftdi_232bm_baud_to_divisor(9600);
1092 div_okay = 0;
1093 baud = 9600;
1094 }
1095 break;
1096 case FT2232H: /* FT2232H chip */
1097 case FT4232H: /* FT4232H chip */
1098 if ((baud <= 12000000) & (baud >= 1200)) {
1099 div_value = ftdi_2232h_baud_to_divisor(baud);
1100 } else if (baud < 1200) {
1101 div_value = ftdi_232bm_baud_to_divisor(baud);
1102 } else {
1103 dbg("%s - Baud rate too high!", __func__);
1104 div_value = ftdi_232bm_baud_to_divisor(9600);
1105 div_okay = 0;
1106 baud = 9600;
1107 }
1108 break;
1109 } /* priv->chip_type */
1110
1111 if (div_okay) {
1112 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1113 __func__, baud, (unsigned long)div_value,
1114 ftdi_chip_name[priv->chip_type]);
1115 }
1116
1117 tty_encode_baud_rate(tty, baud, baud);
1118 return div_value;
1119 }
1120
1121 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1122 {
1123 struct ftdi_private *priv = usb_get_serial_port_data(port);
1124 __u16 urb_value;
1125 __u16 urb_index;
1126 __u32 urb_index_value;
1127 int rv;
1128
1129 urb_index_value = get_ftdi_divisor(tty, port);
1130 urb_value = (__u16)urb_index_value;
1131 urb_index = (__u16)(urb_index_value >> 16);
1132 if (priv->interface) { /* FT2232C */
1133 urb_index = (__u16)((urb_index << 8) | priv->interface);
1134 }
1135
1136 rv = usb_control_msg(port->serial->dev,
1137 usb_sndctrlpipe(port->serial->dev, 0),
1138 FTDI_SIO_SET_BAUDRATE_REQUEST,
1139 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1140 urb_value, urb_index,
1141 NULL, 0, WDR_SHORT_TIMEOUT);
1142 return rv;
1143 }
1144
1145 static int write_latency_timer(struct usb_serial_port *port)
1146 {
1147 struct ftdi_private *priv = usb_get_serial_port_data(port);
1148 struct usb_device *udev = port->serial->dev;
1149 int rv;
1150 int l = priv->latency;
1151
1152 if (priv->flags & ASYNC_LOW_LATENCY)
1153 l = 1;
1154
1155 dbg("%s: setting latency timer = %i", __func__, l);
1156
1157 rv = usb_control_msg(udev,
1158 usb_sndctrlpipe(udev, 0),
1159 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1160 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1161 l, priv->interface,
1162 NULL, 0, WDR_TIMEOUT);
1163 if (rv < 0)
1164 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1165 return rv;
1166 }
1167
1168 static int read_latency_timer(struct usb_serial_port *port)
1169 {
1170 struct ftdi_private *priv = usb_get_serial_port_data(port);
1171 struct usb_device *udev = port->serial->dev;
1172 unsigned char *buf;
1173 int rv;
1174
1175 dbg("%s", __func__);
1176
1177 buf = kmalloc(1, GFP_KERNEL);
1178 if (!buf)
1179 return -ENOMEM;
1180
1181 rv = usb_control_msg(udev,
1182 usb_rcvctrlpipe(udev, 0),
1183 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1184 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1185 0, priv->interface,
1186 buf, 1, WDR_TIMEOUT);
1187 if (rv < 0)
1188 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1189 else
1190 priv->latency = buf[0];
1191
1192 kfree(buf);
1193
1194 return rv;
1195 }
1196
1197 static int get_serial_info(struct usb_serial_port *port,
1198 struct serial_struct __user *retinfo)
1199 {
1200 struct ftdi_private *priv = usb_get_serial_port_data(port);
1201 struct serial_struct tmp;
1202
1203 if (!retinfo)
1204 return -EFAULT;
1205 memset(&tmp, 0, sizeof(tmp));
1206 tmp.flags = priv->flags;
1207 tmp.baud_base = priv->baud_base;
1208 tmp.custom_divisor = priv->custom_divisor;
1209 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1210 return -EFAULT;
1211 return 0;
1212 } /* get_serial_info */
1213
1214
1215 static int set_serial_info(struct tty_struct *tty,
1216 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1217 { /* set_serial_info */
1218 struct ftdi_private *priv = usb_get_serial_port_data(port);
1219 struct serial_struct new_serial;
1220 struct ftdi_private old_priv;
1221
1222 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1223 return -EFAULT;
1224
1225 mutex_lock(&priv->cfg_lock);
1226 old_priv = *priv;
1227
1228 /* Do error checking and permission checking */
1229
1230 if (!capable(CAP_SYS_ADMIN)) {
1231 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1232 (priv->flags & ~ASYNC_USR_MASK))) {
1233 mutex_unlock(&priv->cfg_lock);
1234 return -EPERM;
1235 }
1236 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1237 (new_serial.flags & ASYNC_USR_MASK));
1238 priv->custom_divisor = new_serial.custom_divisor;
1239 goto check_and_exit;
1240 }
1241
1242 if ((new_serial.baud_base != priv->baud_base) &&
1243 (new_serial.baud_base < 9600)) {
1244 mutex_unlock(&priv->cfg_lock);
1245 return -EINVAL;
1246 }
1247
1248 /* Make the changes - these are privileged changes! */
1249
1250 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1251 (new_serial.flags & ASYNC_FLAGS));
1252 priv->custom_divisor = new_serial.custom_divisor;
1253
1254 write_latency_timer(port);
1255
1256 check_and_exit:
1257 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1258 (priv->flags & ASYNC_SPD_MASK)) {
1259 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1260 tty->alt_speed = 57600;
1261 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1262 tty->alt_speed = 115200;
1263 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1264 tty->alt_speed = 230400;
1265 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1266 tty->alt_speed = 460800;
1267 else
1268 tty->alt_speed = 0;
1269 }
1270 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1271 (priv->flags & ASYNC_SPD_MASK)) ||
1272 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1273 (old_priv.custom_divisor != priv->custom_divisor))) {
1274 change_speed(tty, port);
1275 mutex_unlock(&priv->cfg_lock);
1276 }
1277 else
1278 mutex_unlock(&priv->cfg_lock);
1279 return 0;
1280
1281 } /* set_serial_info */
1282
1283
1284 /* Determine type of FTDI chip based on USB config and descriptor. */
1285 static void ftdi_determine_type(struct usb_serial_port *port)
1286 {
1287 struct ftdi_private *priv = usb_get_serial_port_data(port);
1288 struct usb_serial *serial = port->serial;
1289 struct usb_device *udev = serial->dev;
1290 unsigned version;
1291 unsigned interfaces;
1292
1293 /* Assume it is not the original SIO device for now. */
1294 priv->baud_base = 48000000 / 2;
1295 priv->write_offset = 0;
1296
1297 version = le16_to_cpu(udev->descriptor.bcdDevice);
1298 interfaces = udev->actconfig->desc.bNumInterfaces;
1299 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1300 version, interfaces);
1301 if (interfaces > 1) {
1302 int inter;
1303
1304 /* Multiple interfaces.*/
1305 if (version == 0x0800) {
1306 priv->chip_type = FT4232H;
1307 /* Hi-speed - baud clock runs at 120MHz */
1308 priv->baud_base = 120000000 / 2;
1309 } else if (version == 0x0700) {
1310 priv->chip_type = FT2232H;
1311 /* Hi-speed - baud clock runs at 120MHz */
1312 priv->baud_base = 120000000 / 2;
1313 } else
1314 priv->chip_type = FT2232C;
1315
1316 /* Determine interface code. */
1317 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1318 if (inter == 0) {
1319 priv->interface = INTERFACE_A;
1320 } else if (inter == 1) {
1321 priv->interface = INTERFACE_B;
1322 } else if (inter == 2) {
1323 priv->interface = INTERFACE_C;
1324 } else if (inter == 3) {
1325 priv->interface = INTERFACE_D;
1326 }
1327 /* BM-type devices have a bug where bcdDevice gets set
1328 * to 0x200 when iSerialNumber is 0. */
1329 if (version < 0x500) {
1330 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1331 __func__);
1332 }
1333 } else if (version < 0x200) {
1334 /* Old device. Assume it's the original SIO. */
1335 priv->chip_type = SIO;
1336 priv->baud_base = 12000000 / 16;
1337 priv->write_offset = 1;
1338 } else if (version < 0x400) {
1339 /* Assume it's an FT8U232AM (or FT8U245AM) */
1340 /* (It might be a BM because of the iSerialNumber bug,
1341 * but it will still work as an AM device.) */
1342 priv->chip_type = FT8U232AM;
1343 } else if (version < 0x600) {
1344 /* Assume it's an FT232BM (or FT245BM) */
1345 priv->chip_type = FT232BM;
1346 } else {
1347 /* Assume it's an FT232R */
1348 priv->chip_type = FT232RL;
1349 }
1350 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1351 }
1352
1353
1354 /* Determine the maximum packet size for the device. This depends on the chip
1355 * type and the USB host capabilities. The value should be obtained from the
1356 * device descriptor as the chip will use the appropriate values for the host.*/
1357 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1358 {
1359 struct ftdi_private *priv = usb_get_serial_port_data(port);
1360 struct usb_serial *serial = port->serial;
1361 struct usb_device *udev = serial->dev;
1362
1363 struct usb_interface *interface = serial->interface;
1364 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1365
1366 unsigned num_endpoints;
1367 int i;
1368
1369 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1370 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1371
1372 /* NOTE: some customers have programmed FT232R/FT245R devices
1373 * with an endpoint size of 0 - not good. In this case, we
1374 * want to override the endpoint descriptor setting and use a
1375 * value of 64 for wMaxPacketSize */
1376 for (i = 0; i < num_endpoints; i++) {
1377 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1378 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1379 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1380 if (ep_desc->wMaxPacketSize == 0) {
1381 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1382 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1383 }
1384 }
1385
1386 /* set max packet size based on descriptor */
1387 priv->max_packet_size = ep_desc->wMaxPacketSize;
1388
1389 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1390 }
1391
1392
1393 /*
1394 * ***************************************************************************
1395 * Sysfs Attribute
1396 * ***************************************************************************
1397 */
1398
1399 static ssize_t show_latency_timer(struct device *dev,
1400 struct device_attribute *attr, char *buf)
1401 {
1402 struct usb_serial_port *port = to_usb_serial_port(dev);
1403 struct ftdi_private *priv = usb_get_serial_port_data(port);
1404 if (priv->flags & ASYNC_LOW_LATENCY)
1405 return sprintf(buf, "1\n");
1406 else
1407 return sprintf(buf, "%i\n", priv->latency);
1408 }
1409
1410
1411 /* Write a new value of the latency timer, in units of milliseconds. */
1412 static ssize_t store_latency_timer(struct device *dev,
1413 struct device_attribute *attr, const char *valbuf,
1414 size_t count)
1415 {
1416 struct usb_serial_port *port = to_usb_serial_port(dev);
1417 struct ftdi_private *priv = usb_get_serial_port_data(port);
1418 int v = simple_strtoul(valbuf, NULL, 10);
1419 int rv;
1420
1421 priv->latency = v;
1422 rv = write_latency_timer(port);
1423 if (rv < 0)
1424 return -EIO;
1425 return count;
1426 }
1427
1428 /* Write an event character directly to the FTDI register. The ASCII
1429 value is in the low 8 bits, with the enable bit in the 9th bit. */
1430 static ssize_t store_event_char(struct device *dev,
1431 struct device_attribute *attr, const char *valbuf, size_t count)
1432 {
1433 struct usb_serial_port *port = to_usb_serial_port(dev);
1434 struct ftdi_private *priv = usb_get_serial_port_data(port);
1435 struct usb_device *udev = port->serial->dev;
1436 int v = simple_strtoul(valbuf, NULL, 10);
1437 int rv;
1438
1439 dbg("%s: setting event char = %i", __func__, v);
1440
1441 rv = usb_control_msg(udev,
1442 usb_sndctrlpipe(udev, 0),
1443 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1444 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1445 v, priv->interface,
1446 NULL, 0, WDR_TIMEOUT);
1447 if (rv < 0) {
1448 dbg("Unable to write event character: %i", rv);
1449 return -EIO;
1450 }
1451
1452 return count;
1453 }
1454
1455 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1456 store_latency_timer);
1457 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1458
1459 static int create_sysfs_attrs(struct usb_serial_port *port)
1460 {
1461 struct ftdi_private *priv = usb_get_serial_port_data(port);
1462 int retval = 0;
1463
1464 dbg("%s", __func__);
1465
1466 /* XXX I've no idea if the original SIO supports the event_char
1467 * sysfs parameter, so I'm playing it safe. */
1468 if (priv->chip_type != SIO) {
1469 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1470 retval = device_create_file(&port->dev, &dev_attr_event_char);
1471 if ((!retval) &&
1472 (priv->chip_type == FT232BM ||
1473 priv->chip_type == FT2232C ||
1474 priv->chip_type == FT232RL ||
1475 priv->chip_type == FT2232H ||
1476 priv->chip_type == FT4232H)) {
1477 retval = device_create_file(&port->dev,
1478 &dev_attr_latency_timer);
1479 }
1480 }
1481 return retval;
1482 }
1483
1484 static void remove_sysfs_attrs(struct usb_serial_port *port)
1485 {
1486 struct ftdi_private *priv = usb_get_serial_port_data(port);
1487
1488 dbg("%s", __func__);
1489
1490 /* XXX see create_sysfs_attrs */
1491 if (priv->chip_type != SIO) {
1492 device_remove_file(&port->dev, &dev_attr_event_char);
1493 if (priv->chip_type == FT232BM ||
1494 priv->chip_type == FT2232C ||
1495 priv->chip_type == FT232RL ||
1496 priv->chip_type == FT2232H ||
1497 priv->chip_type == FT4232H) {
1498 device_remove_file(&port->dev, &dev_attr_latency_timer);
1499 }
1500 }
1501
1502 }
1503
1504 /*
1505 * ***************************************************************************
1506 * FTDI driver specific functions
1507 * ***************************************************************************
1508 */
1509
1510 /* Probe function to check for special devices */
1511 static int ftdi_sio_probe(struct usb_serial *serial,
1512 const struct usb_device_id *id)
1513 {
1514 struct ftdi_sio_quirk *quirk =
1515 (struct ftdi_sio_quirk *)id->driver_info;
1516
1517 if (quirk && quirk->probe) {
1518 int ret = quirk->probe(serial);
1519 if (ret != 0)
1520 return ret;
1521 }
1522
1523 usb_set_serial_data(serial, (void *)id->driver_info);
1524
1525 return 0;
1526 }
1527
1528 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1529 {
1530 struct ftdi_private *priv;
1531 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1532
1533
1534 dbg("%s", __func__);
1535
1536 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1537 if (!priv) {
1538 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1539 sizeof(struct ftdi_private));
1540 return -ENOMEM;
1541 }
1542
1543 kref_init(&priv->kref);
1544 spin_lock_init(&priv->tx_lock);
1545 mutex_init(&priv->cfg_lock);
1546 init_waitqueue_head(&priv->delta_msr_wait);
1547
1548 priv->flags = ASYNC_LOW_LATENCY;
1549
1550 if (quirk && quirk->port_probe)
1551 quirk->port_probe(priv);
1552
1553 priv->port = port;
1554
1555 /* Free port's existing write urb and transfer buffer. */
1556 if (port->write_urb) {
1557 usb_free_urb(port->write_urb);
1558 port->write_urb = NULL;
1559 }
1560 kfree(port->bulk_out_buffer);
1561 port->bulk_out_buffer = NULL;
1562
1563 usb_set_serial_port_data(port, priv);
1564
1565 ftdi_determine_type(port);
1566 ftdi_set_max_packet_size(port);
1567 if (read_latency_timer(port) < 0)
1568 priv->latency = 16;
1569 create_sysfs_attrs(port);
1570 return 0;
1571 }
1572
1573 /* Setup for the USB-UIRT device, which requires hardwired
1574 * baudrate (38400 gets mapped to 312500) */
1575 /* Called from usbserial:serial_probe */
1576 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1577 {
1578 dbg("%s", __func__);
1579
1580 priv->flags |= ASYNC_SPD_CUST;
1581 priv->custom_divisor = 77;
1582 priv->force_baud = 38400;
1583 } /* ftdi_USB_UIRT_setup */
1584
1585 /* Setup for the HE-TIRA1 device, which requires hardwired
1586 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1587
1588 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1589 {
1590 dbg("%s", __func__);
1591
1592 priv->flags |= ASYNC_SPD_CUST;
1593 priv->custom_divisor = 240;
1594 priv->force_baud = 38400;
1595 priv->force_rtscts = 1;
1596 } /* ftdi_HE_TIRA1_setup */
1597
1598 /*
1599 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1600 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1601 */
1602 static int ndi_latency_timer = 1;
1603
1604 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1605 * baudrate (19200 gets mapped to 1200000).
1606 *
1607 * Called from usbserial:serial_probe.
1608 */
1609 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1610 {
1611 struct usb_device *udev = serial->dev;
1612 int latency = ndi_latency_timer;
1613
1614 if (latency == 0)
1615 latency = 1;
1616 if (latency > 99)
1617 latency = 99;
1618
1619 dbg("%s setting NDI device latency to %d", __func__, latency);
1620 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1621
1622 /* FIXME: errors are not returned */
1623 usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1624 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1625 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1626 latency, 0, NULL, 0, WDR_TIMEOUT);
1627 return 0;
1628 }
1629
1630 /*
1631 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1632 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1633 * userspace using openocd.
1634 */
1635 static int ftdi_jtag_probe(struct usb_serial *serial)
1636 {
1637 struct usb_device *udev = serial->dev;
1638 struct usb_interface *interface = serial->interface;
1639
1640 dbg("%s", __func__);
1641
1642 if (interface == udev->actconfig->interface[0]) {
1643 dev_info(&udev->dev,
1644 "Ignoring serial port reserved for JTAG\n");
1645 return -ENODEV;
1646 }
1647
1648 return 0;
1649 }
1650
1651 /*
1652 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1653 * We have to correct it if we want to read from it.
1654 */
1655 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1656 {
1657 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1658 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1659
1660 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1661 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1662 dev_info(&serial->dev->dev,
1663 "Fixing invalid wMaxPacketSize on read pipe\n");
1664 }
1665
1666 return 0;
1667 }
1668
1669 static void ftdi_sio_priv_release(struct kref *k)
1670 {
1671 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1672
1673 kfree(priv);
1674 }
1675
1676 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1677 {
1678 struct ftdi_private *priv = usb_get_serial_port_data(port);
1679
1680 dbg("%s", __func__);
1681
1682 remove_sysfs_attrs(port);
1683
1684 kref_put(&priv->kref, ftdi_sio_priv_release);
1685
1686 return 0;
1687 }
1688
1689 static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
1690 {
1691 struct urb *urb = port->read_urb;
1692 struct usb_serial *serial = port->serial;
1693 int result;
1694
1695 usb_fill_bulk_urb(urb, serial->dev,
1696 usb_rcvbulkpipe(serial->dev,
1697 port->bulk_in_endpointAddress),
1698 urb->transfer_buffer,
1699 urb->transfer_buffer_length,
1700 ftdi_read_bulk_callback, port);
1701 result = usb_submit_urb(urb, mem_flags);
1702 if (result && result != -EPERM)
1703 dev_err(&port->dev,
1704 "%s - failed submitting read urb, error %d\n",
1705 __func__, result);
1706 return result;
1707 }
1708
1709 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1710 { /* ftdi_open */
1711 struct usb_device *dev = port->serial->dev;
1712 struct ftdi_private *priv = usb_get_serial_port_data(port);
1713 unsigned long flags;
1714 int result;
1715
1716 dbg("%s", __func__);
1717
1718 write_latency_timer(port);
1719
1720 /* No error checking for this (will get errors later anyway) */
1721 /* See ftdi_sio.h for description of what is reset */
1722 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1723 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1724 FTDI_SIO_RESET_SIO,
1725 priv->interface, NULL, 0, WDR_TIMEOUT);
1726
1727 /* Termios defaults are set by usb_serial_init. We don't change
1728 port->tty->termios - this would lose speed settings, etc.
1729 This is same behaviour as serial.c/rs_open() - Kuba */
1730
1731 /* ftdi_set_termios will send usb control messages */
1732 if (tty)
1733 ftdi_set_termios(tty, port, tty->termios);
1734
1735 /* Not throttled */
1736 spin_lock_irqsave(&port->lock, flags);
1737 port->throttled = 0;
1738 port->throttle_req = 0;
1739 spin_unlock_irqrestore(&port->lock, flags);
1740
1741 /* Start reading from the device */
1742 result = ftdi_submit_read_urb(port, GFP_KERNEL);
1743 if (!result)
1744 kref_get(&priv->kref);
1745
1746 return result;
1747 } /* ftdi_open */
1748
1749
1750 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1751 {
1752 struct ftdi_private *priv = usb_get_serial_port_data(port);
1753
1754 mutex_lock(&port->serial->disc_mutex);
1755 if (!port->serial->disconnected) {
1756 /* Disable flow control */
1757 if (!on && usb_control_msg(port->serial->dev,
1758 usb_sndctrlpipe(port->serial->dev, 0),
1759 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1760 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1761 0, priv->interface, NULL, 0,
1762 WDR_TIMEOUT) < 0) {
1763 dev_err(&port->dev, "error from flowcontrol urb\n");
1764 }
1765 /* drop RTS and DTR */
1766 if (on)
1767 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1768 else
1769 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1770 }
1771 mutex_unlock(&port->serial->disc_mutex);
1772 }
1773
1774 /*
1775 * usbserial:__serial_close only calls ftdi_close if the point is open
1776 *
1777 * This only gets called when it is the last close
1778 *
1779 *
1780 */
1781
1782 static void ftdi_close(struct usb_serial_port *port)
1783 { /* ftdi_close */
1784 struct ftdi_private *priv = usb_get_serial_port_data(port);
1785
1786 dbg("%s", __func__);
1787
1788 /* shutdown our bulk read */
1789 usb_kill_urb(port->read_urb);
1790 kref_put(&priv->kref, ftdi_sio_priv_release);
1791 } /* ftdi_close */
1792
1793
1794
1795 /* The SIO requires the first byte to have:
1796 * B0 1
1797 * B1 0
1798 * B2..7 length of message excluding byte 0
1799 *
1800 * The new devices do not require this byte
1801 */
1802 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1803 const unsigned char *buf, int count)
1804 { /* ftdi_write */
1805 struct ftdi_private *priv = usb_get_serial_port_data(port);
1806 struct urb *urb;
1807 unsigned char *buffer;
1808 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1809 int status;
1810 int transfer_size;
1811 unsigned long flags;
1812
1813 dbg("%s port %d, %d bytes", __func__, port->number, count);
1814
1815 if (count == 0) {
1816 dbg("write request of 0 bytes");
1817 return 0;
1818 }
1819 spin_lock_irqsave(&priv->tx_lock, flags);
1820 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1821 spin_unlock_irqrestore(&priv->tx_lock, flags);
1822 dbg("%s - write limit hit", __func__);
1823 return 0;
1824 }
1825 priv->tx_outstanding_urbs++;
1826 spin_unlock_irqrestore(&priv->tx_lock, flags);
1827
1828 data_offset = priv->write_offset;
1829 dbg("data_offset set to %d", data_offset);
1830
1831 /* Determine total transfer size */
1832 transfer_size = count;
1833 if (data_offset > 0) {
1834 /* Original sio needs control bytes too... */
1835 transfer_size += (data_offset *
1836 ((count + (priv->max_packet_size - 1 - data_offset)) /
1837 (priv->max_packet_size - data_offset)));
1838 }
1839
1840 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1841 if (!buffer) {
1842 dev_err(&port->dev,
1843 "%s ran out of kernel memory for urb ...\n", __func__);
1844 count = -ENOMEM;
1845 goto error_no_buffer;
1846 }
1847
1848 urb = usb_alloc_urb(0, GFP_ATOMIC);
1849 if (!urb) {
1850 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1851 count = -ENOMEM;
1852 goto error_no_urb;
1853 }
1854
1855 /* Copy data */
1856 if (data_offset > 0) {
1857 /* Original sio requires control byte at start of
1858 each packet. */
1859 int user_pktsz = priv->max_packet_size - data_offset;
1860 int todo = count;
1861 unsigned char *first_byte = buffer;
1862 const unsigned char *current_position = buf;
1863
1864 while (todo > 0) {
1865 if (user_pktsz > todo)
1866 user_pktsz = todo;
1867 /* Write the control byte at the front of the packet*/
1868 *first_byte = 1 | ((user_pktsz) << 2);
1869 /* Copy data for packet */
1870 memcpy(first_byte + data_offset,
1871 current_position, user_pktsz);
1872 first_byte += user_pktsz + data_offset;
1873 current_position += user_pktsz;
1874 todo -= user_pktsz;
1875 }
1876 } else {
1877 /* No control byte required. */
1878 /* Copy in the data to send */
1879 memcpy(buffer, buf, count);
1880 }
1881
1882 usb_serial_debug_data(debug, &port->dev, __func__,
1883 transfer_size, buffer);
1884
1885 /* fill the buffer and send it */
1886 usb_fill_bulk_urb(urb, port->serial->dev,
1887 usb_sndbulkpipe(port->serial->dev,
1888 port->bulk_out_endpointAddress),
1889 buffer, transfer_size,
1890 ftdi_write_bulk_callback, port);
1891
1892 status = usb_submit_urb(urb, GFP_ATOMIC);
1893 if (status) {
1894 dev_err(&port->dev,
1895 "%s - failed submitting write urb, error %d\n",
1896 __func__, status);
1897 count = status;
1898 goto error;
1899 } else {
1900 spin_lock_irqsave(&priv->tx_lock, flags);
1901 priv->tx_outstanding_bytes += count;
1902 spin_unlock_irqrestore(&priv->tx_lock, flags);
1903 }
1904
1905 /* we are done with this urb, so let the host driver
1906 * really free it when it is finished with it */
1907 usb_free_urb(urb);
1908
1909 dbg("%s write returning: %d", __func__, count);
1910 return count;
1911 error:
1912 usb_free_urb(urb);
1913 error_no_urb:
1914 kfree(buffer);
1915 error_no_buffer:
1916 spin_lock_irqsave(&priv->tx_lock, flags);
1917 priv->tx_outstanding_urbs--;
1918 spin_unlock_irqrestore(&priv->tx_lock, flags);
1919 return count;
1920 } /* ftdi_write */
1921
1922
1923 /* This function may get called when the device is closed */
1924
1925 static void ftdi_write_bulk_callback(struct urb *urb)
1926 {
1927 unsigned long flags;
1928 struct usb_serial_port *port = urb->context;
1929 struct ftdi_private *priv;
1930 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1931 unsigned long countback;
1932 int status = urb->status;
1933
1934 /* free up the transfer buffer, as usb_free_urb() does not do this */
1935 kfree(urb->transfer_buffer);
1936
1937 dbg("%s - port %d", __func__, port->number);
1938
1939 priv = usb_get_serial_port_data(port);
1940 if (!priv) {
1941 dbg("%s - bad port private data pointer - exiting", __func__);
1942 return;
1943 }
1944 /* account for transferred data */
1945 countback = urb->transfer_buffer_length;
1946 data_offset = priv->write_offset;
1947 if (data_offset > 0) {
1948 /* Subtract the control bytes */
1949 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
1950 }
1951 spin_lock_irqsave(&priv->tx_lock, flags);
1952 --priv->tx_outstanding_urbs;
1953 priv->tx_outstanding_bytes -= countback;
1954 spin_unlock_irqrestore(&priv->tx_lock, flags);
1955
1956 if (status) {
1957 dbg("nonzero write bulk status received: %d", status);
1958 }
1959
1960 usb_serial_port_softint(port);
1961 } /* ftdi_write_bulk_callback */
1962
1963
1964 static int ftdi_write_room(struct tty_struct *tty)
1965 {
1966 struct usb_serial_port *port = tty->driver_data;
1967 struct ftdi_private *priv = usb_get_serial_port_data(port);
1968 int room;
1969 unsigned long flags;
1970
1971 dbg("%s - port %d", __func__, port->number);
1972
1973 spin_lock_irqsave(&priv->tx_lock, flags);
1974 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1975 /*
1976 * We really can take anything the user throws at us
1977 * but let's pick a nice big number to tell the tty
1978 * layer that we have lots of free space
1979 */
1980 room = 2048;
1981 } else {
1982 room = 0;
1983 }
1984 spin_unlock_irqrestore(&priv->tx_lock, flags);
1985 return room;
1986 }
1987
1988 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1989 {
1990 struct usb_serial_port *port = tty->driver_data;
1991 struct ftdi_private *priv = usb_get_serial_port_data(port);
1992 int buffered;
1993 unsigned long flags;
1994
1995 dbg("%s - port %d", __func__, port->number);
1996
1997 spin_lock_irqsave(&priv->tx_lock, flags);
1998 buffered = (int)priv->tx_outstanding_bytes;
1999 spin_unlock_irqrestore(&priv->tx_lock, flags);
2000 if (buffered < 0) {
2001 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
2002 __func__);
2003 buffered = 0;
2004 }
2005 return buffered;
2006 }
2007
2008 static int ftdi_process_packet(struct tty_struct *tty,
2009 struct usb_serial_port *port, struct ftdi_private *priv,
2010 char *packet, int len)
2011 {
2012 int i;
2013 char status;
2014 char flag;
2015 char *ch;
2016
2017 dbg("%s - port %d", __func__, port->number);
2018
2019 if (len < 2) {
2020 dbg("malformed packet");
2021 return 0;
2022 }
2023
2024 /* Compare new line status to the old one, signal if different/
2025 N.B. packet may be processed more than once, but differences
2026 are only processed once. */
2027 status = packet[0] & FTDI_STATUS_B0_MASK;
2028 if (status != priv->prev_status) {
2029 priv->diff_status |= status ^ priv->prev_status;
2030 wake_up_interruptible(&priv->delta_msr_wait);
2031 priv->prev_status = status;
2032 }
2033
2034 /*
2035 * Although the device uses a bitmask and hence can have multiple
2036 * errors on a packet - the order here sets the priority the error is
2037 * returned to the tty layer.
2038 */
2039 flag = TTY_NORMAL;
2040 if (packet[1] & FTDI_RS_OE) {
2041 flag = TTY_OVERRUN;
2042 dbg("OVERRRUN error");
2043 }
2044 if (packet[1] & FTDI_RS_BI) {
2045 flag = TTY_BREAK;
2046 dbg("BREAK received");
2047 usb_serial_handle_break(port);
2048 }
2049 if (packet[1] & FTDI_RS_PE) {
2050 flag = TTY_PARITY;
2051 dbg("PARITY error");
2052 }
2053 if (packet[1] & FTDI_RS_FE) {
2054 flag = TTY_FRAME;
2055 dbg("FRAMING error");
2056 }
2057
2058 len -= 2;
2059 if (!len)
2060 return 0; /* status only */
2061 ch = packet + 2;
2062
2063 if (!(port->port.console && port->sysrq) && flag == TTY_NORMAL)
2064 tty_insert_flip_string(tty, ch, len);
2065 else {
2066 for (i = 0; i < len; i++, ch++) {
2067 if (!usb_serial_handle_sysrq_char(tty, port, *ch))
2068 tty_insert_flip_char(tty, *ch, flag);
2069 }
2070 }
2071 return len;
2072 }
2073
2074 static void ftdi_process_read(struct usb_serial_port *port)
2075 {
2076 struct urb *urb = port->read_urb;
2077 struct tty_struct *tty;
2078 struct ftdi_private *priv = usb_get_serial_port_data(port);
2079 char *data = (char *)urb->transfer_buffer;
2080 int i;
2081 int len;
2082 int count = 0;
2083
2084 tty = tty_port_tty_get(&port->port);
2085 if (!tty)
2086 return;
2087
2088 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2089 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2090 count += ftdi_process_packet(tty, port, priv, &data[i], len);
2091 }
2092
2093 if (count)
2094 tty_flip_buffer_push(tty);
2095 tty_kref_put(tty);
2096 }
2097
2098 static void ftdi_read_bulk_callback(struct urb *urb)
2099 {
2100 struct usb_serial_port *port = urb->context;
2101 unsigned long flags;
2102
2103 dbg("%s - port %d", __func__, port->number);
2104
2105 if (urb->status) {
2106 dbg("%s - nonzero read bulk status received: %d",
2107 __func__, urb->status);
2108 return;
2109 }
2110
2111 usb_serial_debug_data(debug, &port->dev, __func__,
2112 urb->actual_length, urb->transfer_buffer);
2113 ftdi_process_read(port);
2114
2115 spin_lock_irqsave(&port->lock, flags);
2116 port->throttled = port->throttle_req;
2117 if (!port->throttled) {
2118 spin_unlock_irqrestore(&port->lock, flags);
2119 ftdi_submit_read_urb(port, GFP_ATOMIC);
2120 } else
2121 spin_unlock_irqrestore(&port->lock, flags);
2122 }
2123
2124 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2125 {
2126 struct usb_serial_port *port = tty->driver_data;
2127 struct ftdi_private *priv = usb_get_serial_port_data(port);
2128 __u16 urb_value;
2129
2130 /* break_state = -1 to turn on break, and 0 to turn off break */
2131 /* see drivers/char/tty_io.c to see it used */
2132 /* last_set_data_urb_value NEVER has the break bit set in it */
2133
2134 if (break_state)
2135 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2136 else
2137 urb_value = priv->last_set_data_urb_value;
2138
2139 if (usb_control_msg(port->serial->dev,
2140 usb_sndctrlpipe(port->serial->dev, 0),
2141 FTDI_SIO_SET_DATA_REQUEST,
2142 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2143 urb_value , priv->interface,
2144 NULL, 0, WDR_TIMEOUT) < 0) {
2145 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2146 "(state was %d)\n", __func__, break_state);
2147 }
2148
2149 dbg("%s break state is %d - urb is %d", __func__,
2150 break_state, urb_value);
2151
2152 }
2153
2154
2155 /* old_termios contains the original termios settings and tty->termios contains
2156 * the new setting to be used
2157 * WARNING: set_termios calls this with old_termios in kernel space
2158 */
2159
2160 static void ftdi_set_termios(struct tty_struct *tty,
2161 struct usb_serial_port *port, struct ktermios *old_termios)
2162 { /* ftdi_termios */
2163 struct usb_device *dev = port->serial->dev;
2164 struct ftdi_private *priv = usb_get_serial_port_data(port);
2165 struct ktermios *termios = tty->termios;
2166 unsigned int cflag = termios->c_cflag;
2167 __u16 urb_value; /* will hold the new flags */
2168
2169 /* Added for xon/xoff support */
2170 unsigned int iflag = termios->c_iflag;
2171 unsigned char vstop;
2172 unsigned char vstart;
2173
2174 dbg("%s", __func__);
2175
2176 /* Force baud rate if this device requires it, unless it is set to
2177 B0. */
2178 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2179 dbg("%s: forcing baud rate for this device", __func__);
2180 tty_encode_baud_rate(tty, priv->force_baud,
2181 priv->force_baud);
2182 }
2183
2184 /* Force RTS-CTS if this device requires it. */
2185 if (priv->force_rtscts) {
2186 dbg("%s: forcing rtscts for this device", __func__);
2187 termios->c_cflag |= CRTSCTS;
2188 }
2189
2190 cflag = termios->c_cflag;
2191
2192 /* FIXME -For this cut I don't care if the line is really changing or
2193 not - so just do the change regardless - should be able to
2194 compare old_termios and tty->termios */
2195 /* NOTE These routines can get interrupted by
2196 ftdi_sio_read_bulk_callback - need to examine what this means -
2197 don't see any problems yet */
2198
2199 /* Set number of data bits, parity, stop bits */
2200
2201 urb_value = 0;
2202 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2203 FTDI_SIO_SET_DATA_STOP_BITS_1);
2204 if (cflag & PARENB) {
2205 if (cflag & CMSPAR)
2206 urb_value |= cflag & PARODD ?
2207 FTDI_SIO_SET_DATA_PARITY_MARK :
2208 FTDI_SIO_SET_DATA_PARITY_SPACE;
2209 else
2210 urb_value |= cflag & PARODD ?
2211 FTDI_SIO_SET_DATA_PARITY_ODD :
2212 FTDI_SIO_SET_DATA_PARITY_EVEN;
2213 } else {
2214 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2215 }
2216 if (cflag & CSIZE) {
2217 switch (cflag & CSIZE) {
2218 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2219 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2220 default:
2221 dev_err(&port->dev, "CSIZE was set but not CS7-CS8\n");
2222 }
2223 }
2224
2225 /* This is needed by the break command since it uses the same command
2226 - but is or'ed with this value */
2227 priv->last_set_data_urb_value = urb_value;
2228
2229 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2230 FTDI_SIO_SET_DATA_REQUEST,
2231 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2232 urb_value , priv->interface,
2233 NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
2234 dev_err(&port->dev, "%s FAILED to set "
2235 "databits/stopbits/parity\n", __func__);
2236 }
2237
2238 /* Now do the baudrate */
2239 if ((cflag & CBAUD) == B0) {
2240 /* Disable flow control */
2241 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2242 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2243 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2244 0, priv->interface,
2245 NULL, 0, WDR_TIMEOUT) < 0) {
2246 dev_err(&port->dev,
2247 "%s error from disable flowcontrol urb\n",
2248 __func__);
2249 }
2250 /* Drop RTS and DTR */
2251 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2252 } else {
2253 /* set the baudrate determined before */
2254 mutex_lock(&priv->cfg_lock);
2255 if (change_speed(tty, port))
2256 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2257 __func__);
2258 mutex_unlock(&priv->cfg_lock);
2259 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2260 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2261 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2262 }
2263
2264 /* Set flow control */
2265 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2266 if (cflag & CRTSCTS) {
2267 dbg("%s Setting to CRTSCTS flow control", __func__);
2268 if (usb_control_msg(dev,
2269 usb_sndctrlpipe(dev, 0),
2270 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2271 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2272 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2273 NULL, 0, WDR_TIMEOUT) < 0) {
2274 dev_err(&port->dev,
2275 "urb failed to set to rts/cts flow control\n");
2276 }
2277
2278 } else {
2279 /*
2280 * Xon/Xoff code
2281 *
2282 * Check the IXOFF status in the iflag component of the
2283 * termios structure. If IXOFF is not set, the pre-xon/xoff
2284 * code is executed.
2285 */
2286 if (iflag & IXOFF) {
2287 dbg("%s request to enable xonxoff iflag=%04x",
2288 __func__, iflag);
2289 /* Try to enable the XON/XOFF on the ftdi_sio
2290 * Set the vstart and vstop -- could have been done up
2291 * above where a lot of other dereferencing is done but
2292 * that would be very inefficient as vstart and vstop
2293 * are not always needed.
2294 */
2295 vstart = termios->c_cc[VSTART];
2296 vstop = termios->c_cc[VSTOP];
2297 urb_value = (vstop << 8) | (vstart);
2298
2299 if (usb_control_msg(dev,
2300 usb_sndctrlpipe(dev, 0),
2301 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2302 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2303 urb_value , (FTDI_SIO_XON_XOFF_HS
2304 | priv->interface),
2305 NULL, 0, WDR_TIMEOUT) < 0) {
2306 dev_err(&port->dev, "urb failed to set to "
2307 "xon/xoff flow control\n");
2308 }
2309 } else {
2310 /* else clause to only run if cflag ! CRTSCTS and iflag
2311 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2312 * stack - not by device */
2313 dbg("%s Turning off hardware flow control", __func__);
2314 if (usb_control_msg(dev,
2315 usb_sndctrlpipe(dev, 0),
2316 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2317 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2318 0, priv->interface,
2319 NULL, 0, WDR_TIMEOUT) < 0) {
2320 dev_err(&port->dev,
2321 "urb failed to clear flow control\n");
2322 }
2323 }
2324
2325 }
2326 return;
2327 }
2328
2329 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2330 {
2331 struct usb_serial_port *port = tty->driver_data;
2332 struct ftdi_private *priv = usb_get_serial_port_data(port);
2333 unsigned char *buf;
2334 int len;
2335 int ret;
2336
2337 dbg("%s TIOCMGET", __func__);
2338
2339 buf = kmalloc(2, GFP_KERNEL);
2340 if (!buf)
2341 return -ENOMEM;
2342 /*
2343 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2344 * the same format as the data returned from the in point.
2345 */
2346 switch (priv->chip_type) {
2347 case SIO:
2348 len = 1;
2349 break;
2350 case FT8U232AM:
2351 case FT232BM:
2352 case FT2232C:
2353 case FT232RL:
2354 case FT2232H:
2355 case FT4232H:
2356 len = 2;
2357 break;
2358 default:
2359 ret = -EFAULT;
2360 goto out;
2361 }
2362
2363 ret = usb_control_msg(port->serial->dev,
2364 usb_rcvctrlpipe(port->serial->dev, 0),
2365 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2366 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2367 0, priv->interface,
2368 buf, len, WDR_TIMEOUT);
2369 if (ret < 0)
2370 goto out;
2371
2372 ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2373 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2374 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2375 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2376 priv->last_dtr_rts;
2377 out:
2378 kfree(buf);
2379 return ret;
2380 }
2381
2382 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2383 unsigned int set, unsigned int clear)
2384 {
2385 struct usb_serial_port *port = tty->driver_data;
2386 dbg("%s TIOCMSET", __func__);
2387 return update_mctrl(port, set, clear);
2388 }
2389
2390
2391 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2392 unsigned int cmd, unsigned long arg)
2393 {
2394 struct usb_serial_port *port = tty->driver_data;
2395 struct ftdi_private *priv = usb_get_serial_port_data(port);
2396
2397 dbg("%s cmd 0x%04x", __func__, cmd);
2398
2399 /* Based on code from acm.c and others */
2400 switch (cmd) {
2401
2402 case TIOCGSERIAL: /* gets serial port data */
2403 return get_serial_info(port,
2404 (struct serial_struct __user *) arg);
2405
2406 case TIOCSSERIAL: /* sets serial port data */
2407 return set_serial_info(tty, port,
2408 (struct serial_struct __user *) arg);
2409
2410 /*
2411 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2412 * - mask passed in arg for lines of interest
2413 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2414 * Caller should use TIOCGICOUNT to see which one it was.
2415 *
2416 * This code is borrowed from linux/drivers/char/serial.c
2417 */
2418 case TIOCMIWAIT:
2419 while (priv != NULL) {
2420 interruptible_sleep_on(&priv->delta_msr_wait);
2421 /* see if a signal did it */
2422 if (signal_pending(current))
2423 return -ERESTARTSYS;
2424 else {
2425 char diff = priv->diff_status;
2426
2427 if (diff == 0)
2428 return -EIO; /* no change => error */
2429
2430 /* Consume all events */
2431 priv->diff_status = 0;
2432
2433 /* Return 0 if caller wanted to know about
2434 these bits */
2435 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2436 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2437 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2438 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2439 return 0;
2440 }
2441 /*
2442 * Otherwise caller can't care less about what
2443 * happened,and so we continue to wait for more
2444 * events.
2445 */
2446 }
2447 }
2448 return 0;
2449 default:
2450 break;
2451 }
2452 /* This is not necessarily an error - turns out the higher layers
2453 * will do some ioctls themselves (see comment above)
2454 */
2455 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2456 return -ENOIOCTLCMD;
2457 }
2458
2459 static void ftdi_throttle(struct tty_struct *tty)
2460 {
2461 struct usb_serial_port *port = tty->driver_data;
2462 unsigned long flags;
2463
2464 dbg("%s - port %d", __func__, port->number);
2465
2466 spin_lock_irqsave(&port->lock, flags);
2467 port->throttle_req = 1;
2468 spin_unlock_irqrestore(&port->lock, flags);
2469 }
2470
2471 void ftdi_unthrottle(struct tty_struct *tty)
2472 {
2473 struct usb_serial_port *port = tty->driver_data;
2474 int was_throttled;
2475 unsigned long flags;
2476
2477 dbg("%s - port %d", __func__, port->number);
2478
2479 spin_lock_irqsave(&port->lock, flags);
2480 was_throttled = port->throttled;
2481 port->throttled = port->throttle_req = 0;
2482 spin_unlock_irqrestore(&port->lock, flags);
2483
2484 if (was_throttled)
2485 ftdi_submit_read_urb(port, GFP_KERNEL);
2486 }
2487
2488 static int __init ftdi_init(void)
2489 {
2490 int retval;
2491
2492 dbg("%s", __func__);
2493 if (vendor > 0 && product > 0) {
2494 /* Add user specified VID/PID to reserved element of table. */
2495 int i;
2496 for (i = 0; id_table_combined[i].idVendor; i++)
2497 ;
2498 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2499 id_table_combined[i].idVendor = vendor;
2500 id_table_combined[i].idProduct = product;
2501 }
2502 retval = usb_serial_register(&ftdi_sio_device);
2503 if (retval)
2504 goto failed_sio_register;
2505 retval = usb_register(&ftdi_driver);
2506 if (retval)
2507 goto failed_usb_register;
2508
2509 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2510 DRIVER_DESC "\n");
2511 return 0;
2512 failed_usb_register:
2513 usb_serial_deregister(&ftdi_sio_device);
2514 failed_sio_register:
2515 return retval;
2516 }
2517
2518
2519 static void __exit ftdi_exit(void)
2520 {
2521
2522 dbg("%s", __func__);
2523
2524 usb_deregister(&ftdi_driver);
2525 usb_serial_deregister(&ftdi_sio_device);
2526
2527 }
2528
2529
2530 module_init(ftdi_init);
2531 module_exit(ftdi_exit);
2532
2533 MODULE_AUTHOR(DRIVER_AUTHOR);
2534 MODULE_DESCRIPTION(DRIVER_DESC);
2535 MODULE_LICENSE("GPL");
2536
2537 module_param(debug, bool, S_IRUGO | S_IWUSR);
2538 MODULE_PARM_DESC(debug, "Debug enabled or not");
2539 module_param(vendor, ushort, 0);
2540 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2541 __MODULE_STRING(FTDI_VID)")");
2542 module_param(product, ushort, 0);
2543 MODULE_PARM_DESC(product, "User specified product ID");
2544
2545 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2546 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
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