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USB: ftdi_sio: switch to generic read implementation
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / serial / ftdi_sio.c
blob01efe6dda05c047d6d67296303cda0a4d627968d
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_process_read_urb(struct urb *urb);
793 static void ftdi_set_termios(struct tty_struct *tty,
794 struct usb_serial_port *port, struct ktermios *old);
795 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
796 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
797 unsigned int set, unsigned int clear);
798 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
799 unsigned int cmd, unsigned long arg);
800 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
801
802 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
803 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
804 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
805 static __u32 ftdi_232bm_baud_to_divisor(int baud);
806 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
807 static __u32 ftdi_2232h_baud_to_divisor(int baud);
808
809 static struct usb_serial_driver ftdi_sio_device = {
810 .driver = {
811 .owner = THIS_MODULE,
812 .name = "ftdi_sio",
813 },
814 .description = "FTDI USB Serial Device",
815 .usb_driver = &ftdi_driver,
816 .id_table = id_table_combined,
817 .num_ports = 1,
818 .bulk_in_size = 512,
819 .probe = ftdi_sio_probe,
820 .port_probe = ftdi_sio_port_probe,
821 .port_remove = ftdi_sio_port_remove,
822 .open = ftdi_open,
823 .close = ftdi_close,
824 .dtr_rts = ftdi_dtr_rts,
825 .throttle = usb_serial_generic_throttle,
826 .unthrottle = usb_serial_generic_unthrottle,
827 .write = ftdi_write,
828 .write_room = ftdi_write_room,
829 .chars_in_buffer = ftdi_chars_in_buffer,
830 .process_read_urb = ftdi_process_read_urb,
831 .write_bulk_callback = ftdi_write_bulk_callback,
832 .tiocmget = ftdi_tiocmget,
833 .tiocmset = ftdi_tiocmset,
834 .ioctl = ftdi_ioctl,
835 .set_termios = ftdi_set_termios,
836 .break_ctl = ftdi_break_ctl,
837 };
838
839
840 #define WDR_TIMEOUT 5000 /* default urb timeout */
841 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
842
843 /* High and low are for DTR, RTS etc etc */
844 #define HIGH 1
845 #define LOW 0
846
847 /* number of outstanding urbs to prevent userspace DoS from happening */
848 #define URB_UPPER_LIMIT 42
849
850 /*
851 * ***************************************************************************
852 * Utility functions
853 * ***************************************************************************
854 */
855
856 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
857 {
858 unsigned short int divisor;
859 /* divisor shifted 3 bits to the left */
860 int divisor3 = base / 2 / baud;
861 if ((divisor3 & 0x7) == 7)
862 divisor3++; /* round x.7/8 up to x+1 */
863 divisor = divisor3 >> 3;
864 divisor3 &= 0x7;
865 if (divisor3 == 1)
866 divisor |= 0xc000;
867 else if (divisor3 >= 4)
868 divisor |= 0x4000;
869 else if (divisor3 != 0)
870 divisor |= 0x8000;
871 else if (divisor == 1)
872 divisor = 0; /* special case for maximum baud rate */
873 return divisor;
874 }
875
876 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
877 {
878 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
879 }
880
881 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
882 {
883 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
884 __u32 divisor;
885 /* divisor shifted 3 bits to the left */
886 int divisor3 = base / 2 / baud;
887 divisor = divisor3 >> 3;
888 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
889 /* Deal with special cases for highest baud rates. */
890 if (divisor == 1)
891 divisor = 0;
892 else if (divisor == 0x4001)
893 divisor = 1;
894 return divisor;
895 }
896
897 static __u32 ftdi_232bm_baud_to_divisor(int baud)
898 {
899 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
900 }
901
902 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
903 {
904 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
905 __u32 divisor;
906 int divisor3;
907
908 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
909 divisor3 = (base / 10 / baud) * 8;
910
911 divisor = divisor3 >> 3;
912 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
913 /* Deal with special cases for highest baud rates. */
914 if (divisor == 1)
915 divisor = 0;
916 else if (divisor == 0x4001)
917 divisor = 1;
918 /*
919 * Set this bit to turn off a divide by 2.5 on baud rate generator
920 * This enables baud rates up to 12Mbaud but cannot reach below 1200
921 * baud with this bit set
922 */
923 divisor |= 0x00020000;
924 return divisor;
925 }
926
927 static __u32 ftdi_2232h_baud_to_divisor(int baud)
928 {
929 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
930 }
931
932 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
933 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
934
935 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
936 unsigned int clear)
937 {
938 struct ftdi_private *priv = usb_get_serial_port_data(port);
939 unsigned urb_value;
940 int rv;
941
942 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
943 dbg("%s - DTR|RTS not being set|cleared", __func__);
944 return 0; /* no change */
945 }
946
947 clear &= ~set; /* 'set' takes precedence over 'clear' */
948 urb_value = 0;
949 if (clear & TIOCM_DTR)
950 urb_value |= FTDI_SIO_SET_DTR_LOW;
951 if (clear & TIOCM_RTS)
952 urb_value |= FTDI_SIO_SET_RTS_LOW;
953 if (set & TIOCM_DTR)
954 urb_value |= FTDI_SIO_SET_DTR_HIGH;
955 if (set & TIOCM_RTS)
956 urb_value |= FTDI_SIO_SET_RTS_HIGH;
957 rv = usb_control_msg(port->serial->dev,
958 usb_sndctrlpipe(port->serial->dev, 0),
959 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
960 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
961 urb_value, priv->interface,
962 NULL, 0, WDR_TIMEOUT);
963 if (rv < 0) {
964 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
965 __func__,
966 (set & TIOCM_DTR) ? "HIGH" :
967 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
968 (set & TIOCM_RTS) ? "HIGH" :
969 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
970 } else {
971 dbg("%s - DTR %s, RTS %s", __func__,
972 (set & TIOCM_DTR) ? "HIGH" :
973 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
974 (set & TIOCM_RTS) ? "HIGH" :
975 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
976 /* FIXME: locking on last_dtr_rts */
977 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
978 }
979 return rv;
980 }
981
982
983 static __u32 get_ftdi_divisor(struct tty_struct *tty,
984 struct usb_serial_port *port)
985 { /* get_ftdi_divisor */
986 struct ftdi_private *priv = usb_get_serial_port_data(port);
987 __u32 div_value = 0;
988 int div_okay = 1;
989 int baud;
990
991 /*
992 * The logic involved in setting the baudrate can be cleanly split into
993 * 3 steps.
994 * 1. Standard baud rates are set in tty->termios->c_cflag
995 * 2. If these are not enough, you can set any speed using alt_speed as
996 * follows:
997 * - set tty->termios->c_cflag speed to B38400
998 * - set your real speed in tty->alt_speed; it gets ignored when
999 * alt_speed==0, (or)
1000 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1001 * follows:
1002 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1003 * this just sets alt_speed to (HI: 57600, VHI: 115200,
1004 * SHI: 230400, WARP: 460800)
1005 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1006 * 3. You can also set baud rate by setting custom divisor as follows
1007 * - set tty->termios->c_cflag speed to B38400
1008 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1009 * follows:
1010 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1011 * o custom_divisor set to baud_base / your_new_baudrate
1012 * ** Step 3 is done courtesy of code borrowed from serial.c
1013 * I should really spend some time and separate + move this common
1014 * code to serial.c, it is replicated in nearly every serial driver
1015 * you see.
1016 */
1017
1018 /* 1. Get the baud rate from the tty settings, this observes
1019 alt_speed hack */
1020
1021 baud = tty_get_baud_rate(tty);
1022 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1023
1024 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1025 if needed */
1026
1027 if (baud == 38400 &&
1028 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1029 (priv->custom_divisor)) {
1030 baud = priv->baud_base / priv->custom_divisor;
1031 dbg("%s - custom divisor %d sets baud rate to %d",
1032 __func__, priv->custom_divisor, baud);
1033 }
1034
1035 /* 3. Convert baudrate to device-specific divisor */
1036
1037 if (!baud)
1038 baud = 9600;
1039 switch (priv->chip_type) {
1040 case SIO: /* SIO chip */
1041 switch (baud) {
1042 case 300: div_value = ftdi_sio_b300; break;
1043 case 600: div_value = ftdi_sio_b600; break;
1044 case 1200: div_value = ftdi_sio_b1200; break;
1045 case 2400: div_value = ftdi_sio_b2400; break;
1046 case 4800: div_value = ftdi_sio_b4800; break;
1047 case 9600: div_value = ftdi_sio_b9600; break;
1048 case 19200: div_value = ftdi_sio_b19200; break;
1049 case 38400: div_value = ftdi_sio_b38400; break;
1050 case 57600: div_value = ftdi_sio_b57600; break;
1051 case 115200: div_value = ftdi_sio_b115200; break;
1052 } /* baud */
1053 if (div_value == 0) {
1054 dbg("%s - Baudrate (%d) requested is not supported",
1055 __func__, baud);
1056 div_value = ftdi_sio_b9600;
1057 baud = 9600;
1058 div_okay = 0;
1059 }
1060 break;
1061 case FT8U232AM: /* 8U232AM chip */
1062 if (baud <= 3000000) {
1063 div_value = ftdi_232am_baud_to_divisor(baud);
1064 } else {
1065 dbg("%s - Baud rate too high!", __func__);
1066 baud = 9600;
1067 div_value = ftdi_232am_baud_to_divisor(9600);
1068 div_okay = 0;
1069 }
1070 break;
1071 case FT232BM: /* FT232BM chip */
1072 case FT2232C: /* FT2232C chip */
1073 case FT232RL:
1074 if (baud <= 3000000) {
1075 __u16 product_id = le16_to_cpu(
1076 port->serial->dev->descriptor.idProduct);
1077 if (((FTDI_NDI_HUC_PID == product_id) ||
1078 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1079 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1080 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1081 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1082 (baud == 19200)) {
1083 baud = 1200000;
1084 }
1085 div_value = ftdi_232bm_baud_to_divisor(baud);
1086 } else {
1087 dbg("%s - Baud rate too high!", __func__);
1088 div_value = ftdi_232bm_baud_to_divisor(9600);
1089 div_okay = 0;
1090 baud = 9600;
1091 }
1092 break;
1093 case FT2232H: /* FT2232H chip */
1094 case FT4232H: /* FT4232H chip */
1095 if ((baud <= 12000000) & (baud >= 1200)) {
1096 div_value = ftdi_2232h_baud_to_divisor(baud);
1097 } else if (baud < 1200) {
1098 div_value = ftdi_232bm_baud_to_divisor(baud);
1099 } else {
1100 dbg("%s - Baud rate too high!", __func__);
1101 div_value = ftdi_232bm_baud_to_divisor(9600);
1102 div_okay = 0;
1103 baud = 9600;
1104 }
1105 break;
1106 } /* priv->chip_type */
1107
1108 if (div_okay) {
1109 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1110 __func__, baud, (unsigned long)div_value,
1111 ftdi_chip_name[priv->chip_type]);
1112 }
1113
1114 tty_encode_baud_rate(tty, baud, baud);
1115 return div_value;
1116 }
1117
1118 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1119 {
1120 struct ftdi_private *priv = usb_get_serial_port_data(port);
1121 __u16 urb_value;
1122 __u16 urb_index;
1123 __u32 urb_index_value;
1124 int rv;
1125
1126 urb_index_value = get_ftdi_divisor(tty, port);
1127 urb_value = (__u16)urb_index_value;
1128 urb_index = (__u16)(urb_index_value >> 16);
1129 if (priv->interface) { /* FT2232C */
1130 urb_index = (__u16)((urb_index << 8) | priv->interface);
1131 }
1132
1133 rv = usb_control_msg(port->serial->dev,
1134 usb_sndctrlpipe(port->serial->dev, 0),
1135 FTDI_SIO_SET_BAUDRATE_REQUEST,
1136 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1137 urb_value, urb_index,
1138 NULL, 0, WDR_SHORT_TIMEOUT);
1139 return rv;
1140 }
1141
1142 static int write_latency_timer(struct usb_serial_port *port)
1143 {
1144 struct ftdi_private *priv = usb_get_serial_port_data(port);
1145 struct usb_device *udev = port->serial->dev;
1146 int rv;
1147 int l = priv->latency;
1148
1149 if (priv->flags & ASYNC_LOW_LATENCY)
1150 l = 1;
1151
1152 dbg("%s: setting latency timer = %i", __func__, l);
1153
1154 rv = usb_control_msg(udev,
1155 usb_sndctrlpipe(udev, 0),
1156 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1157 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1158 l, priv->interface,
1159 NULL, 0, WDR_TIMEOUT);
1160 if (rv < 0)
1161 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1162 return rv;
1163 }
1164
1165 static int read_latency_timer(struct usb_serial_port *port)
1166 {
1167 struct ftdi_private *priv = usb_get_serial_port_data(port);
1168 struct usb_device *udev = port->serial->dev;
1169 unsigned char *buf;
1170 int rv;
1171
1172 dbg("%s", __func__);
1173
1174 buf = kmalloc(1, GFP_KERNEL);
1175 if (!buf)
1176 return -ENOMEM;
1177
1178 rv = usb_control_msg(udev,
1179 usb_rcvctrlpipe(udev, 0),
1180 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1181 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1182 0, priv->interface,
1183 buf, 1, WDR_TIMEOUT);
1184 if (rv < 0)
1185 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1186 else
1187 priv->latency = buf[0];
1188
1189 kfree(buf);
1190
1191 return rv;
1192 }
1193
1194 static int get_serial_info(struct usb_serial_port *port,
1195 struct serial_struct __user *retinfo)
1196 {
1197 struct ftdi_private *priv = usb_get_serial_port_data(port);
1198 struct serial_struct tmp;
1199
1200 if (!retinfo)
1201 return -EFAULT;
1202 memset(&tmp, 0, sizeof(tmp));
1203 tmp.flags = priv->flags;
1204 tmp.baud_base = priv->baud_base;
1205 tmp.custom_divisor = priv->custom_divisor;
1206 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1207 return -EFAULT;
1208 return 0;
1209 } /* get_serial_info */
1210
1211
1212 static int set_serial_info(struct tty_struct *tty,
1213 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1214 { /* set_serial_info */
1215 struct ftdi_private *priv = usb_get_serial_port_data(port);
1216 struct serial_struct new_serial;
1217 struct ftdi_private old_priv;
1218
1219 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1220 return -EFAULT;
1221
1222 mutex_lock(&priv->cfg_lock);
1223 old_priv = *priv;
1224
1225 /* Do error checking and permission checking */
1226
1227 if (!capable(CAP_SYS_ADMIN)) {
1228 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1229 (priv->flags & ~ASYNC_USR_MASK))) {
1230 mutex_unlock(&priv->cfg_lock);
1231 return -EPERM;
1232 }
1233 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1234 (new_serial.flags & ASYNC_USR_MASK));
1235 priv->custom_divisor = new_serial.custom_divisor;
1236 goto check_and_exit;
1237 }
1238
1239 if ((new_serial.baud_base != priv->baud_base) &&
1240 (new_serial.baud_base < 9600)) {
1241 mutex_unlock(&priv->cfg_lock);
1242 return -EINVAL;
1243 }
1244
1245 /* Make the changes - these are privileged changes! */
1246
1247 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1248 (new_serial.flags & ASYNC_FLAGS));
1249 priv->custom_divisor = new_serial.custom_divisor;
1250
1251 write_latency_timer(port);
1252
1253 check_and_exit:
1254 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1255 (priv->flags & ASYNC_SPD_MASK)) {
1256 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1257 tty->alt_speed = 57600;
1258 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1259 tty->alt_speed = 115200;
1260 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1261 tty->alt_speed = 230400;
1262 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1263 tty->alt_speed = 460800;
1264 else
1265 tty->alt_speed = 0;
1266 }
1267 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1268 (priv->flags & ASYNC_SPD_MASK)) ||
1269 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1270 (old_priv.custom_divisor != priv->custom_divisor))) {
1271 change_speed(tty, port);
1272 mutex_unlock(&priv->cfg_lock);
1273 }
1274 else
1275 mutex_unlock(&priv->cfg_lock);
1276 return 0;
1277
1278 } /* set_serial_info */
1279
1280
1281 /* Determine type of FTDI chip based on USB config and descriptor. */
1282 static void ftdi_determine_type(struct usb_serial_port *port)
1283 {
1284 struct ftdi_private *priv = usb_get_serial_port_data(port);
1285 struct usb_serial *serial = port->serial;
1286 struct usb_device *udev = serial->dev;
1287 unsigned version;
1288 unsigned interfaces;
1289
1290 /* Assume it is not the original SIO device for now. */
1291 priv->baud_base = 48000000 / 2;
1292 priv->write_offset = 0;
1293
1294 version = le16_to_cpu(udev->descriptor.bcdDevice);
1295 interfaces = udev->actconfig->desc.bNumInterfaces;
1296 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1297 version, interfaces);
1298 if (interfaces > 1) {
1299 int inter;
1300
1301 /* Multiple interfaces.*/
1302 if (version == 0x0800) {
1303 priv->chip_type = FT4232H;
1304 /* Hi-speed - baud clock runs at 120MHz */
1305 priv->baud_base = 120000000 / 2;
1306 } else if (version == 0x0700) {
1307 priv->chip_type = FT2232H;
1308 /* Hi-speed - baud clock runs at 120MHz */
1309 priv->baud_base = 120000000 / 2;
1310 } else
1311 priv->chip_type = FT2232C;
1312
1313 /* Determine interface code. */
1314 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1315 if (inter == 0) {
1316 priv->interface = INTERFACE_A;
1317 } else if (inter == 1) {
1318 priv->interface = INTERFACE_B;
1319 } else if (inter == 2) {
1320 priv->interface = INTERFACE_C;
1321 } else if (inter == 3) {
1322 priv->interface = INTERFACE_D;
1323 }
1324 /* BM-type devices have a bug where bcdDevice gets set
1325 * to 0x200 when iSerialNumber is 0. */
1326 if (version < 0x500) {
1327 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1328 __func__);
1329 }
1330 } else if (version < 0x200) {
1331 /* Old device. Assume it's the original SIO. */
1332 priv->chip_type = SIO;
1333 priv->baud_base = 12000000 / 16;
1334 priv->write_offset = 1;
1335 } else if (version < 0x400) {
1336 /* Assume it's an FT8U232AM (or FT8U245AM) */
1337 /* (It might be a BM because of the iSerialNumber bug,
1338 * but it will still work as an AM device.) */
1339 priv->chip_type = FT8U232AM;
1340 } else if (version < 0x600) {
1341 /* Assume it's an FT232BM (or FT245BM) */
1342 priv->chip_type = FT232BM;
1343 } else {
1344 /* Assume it's an FT232R */
1345 priv->chip_type = FT232RL;
1346 }
1347 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1348 }
1349
1350
1351 /* Determine the maximum packet size for the device. This depends on the chip
1352 * type and the USB host capabilities. The value should be obtained from the
1353 * device descriptor as the chip will use the appropriate values for the host.*/
1354 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1355 {
1356 struct ftdi_private *priv = usb_get_serial_port_data(port);
1357 struct usb_serial *serial = port->serial;
1358 struct usb_device *udev = serial->dev;
1359
1360 struct usb_interface *interface = serial->interface;
1361 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1362
1363 unsigned num_endpoints;
1364 int i;
1365
1366 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1367 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1368
1369 /* NOTE: some customers have programmed FT232R/FT245R devices
1370 * with an endpoint size of 0 - not good. In this case, we
1371 * want to override the endpoint descriptor setting and use a
1372 * value of 64 for wMaxPacketSize */
1373 for (i = 0; i < num_endpoints; i++) {
1374 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1375 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1376 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1377 if (ep_desc->wMaxPacketSize == 0) {
1378 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1379 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1380 }
1381 }
1382
1383 /* set max packet size based on descriptor */
1384 priv->max_packet_size = ep_desc->wMaxPacketSize;
1385
1386 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1387 }
1388
1389
1390 /*
1391 * ***************************************************************************
1392 * Sysfs Attribute
1393 * ***************************************************************************
1394 */
1395
1396 static ssize_t show_latency_timer(struct device *dev,
1397 struct device_attribute *attr, char *buf)
1398 {
1399 struct usb_serial_port *port = to_usb_serial_port(dev);
1400 struct ftdi_private *priv = usb_get_serial_port_data(port);
1401 if (priv->flags & ASYNC_LOW_LATENCY)
1402 return sprintf(buf, "1\n");
1403 else
1404 return sprintf(buf, "%i\n", priv->latency);
1405 }
1406
1407
1408 /* Write a new value of the latency timer, in units of milliseconds. */
1409 static ssize_t store_latency_timer(struct device *dev,
1410 struct device_attribute *attr, const char *valbuf,
1411 size_t count)
1412 {
1413 struct usb_serial_port *port = to_usb_serial_port(dev);
1414 struct ftdi_private *priv = usb_get_serial_port_data(port);
1415 int v = simple_strtoul(valbuf, NULL, 10);
1416 int rv;
1417
1418 priv->latency = v;
1419 rv = write_latency_timer(port);
1420 if (rv < 0)
1421 return -EIO;
1422 return count;
1423 }
1424
1425 /* Write an event character directly to the FTDI register. The ASCII
1426 value is in the low 8 bits, with the enable bit in the 9th bit. */
1427 static ssize_t store_event_char(struct device *dev,
1428 struct device_attribute *attr, const char *valbuf, size_t count)
1429 {
1430 struct usb_serial_port *port = to_usb_serial_port(dev);
1431 struct ftdi_private *priv = usb_get_serial_port_data(port);
1432 struct usb_device *udev = port->serial->dev;
1433 int v = simple_strtoul(valbuf, NULL, 10);
1434 int rv;
1435
1436 dbg("%s: setting event char = %i", __func__, v);
1437
1438 rv = usb_control_msg(udev,
1439 usb_sndctrlpipe(udev, 0),
1440 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1441 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1442 v, priv->interface,
1443 NULL, 0, WDR_TIMEOUT);
1444 if (rv < 0) {
1445 dbg("Unable to write event character: %i", rv);
1446 return -EIO;
1447 }
1448
1449 return count;
1450 }
1451
1452 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1453 store_latency_timer);
1454 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1455
1456 static int create_sysfs_attrs(struct usb_serial_port *port)
1457 {
1458 struct ftdi_private *priv = usb_get_serial_port_data(port);
1459 int retval = 0;
1460
1461 dbg("%s", __func__);
1462
1463 /* XXX I've no idea if the original SIO supports the event_char
1464 * sysfs parameter, so I'm playing it safe. */
1465 if (priv->chip_type != SIO) {
1466 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1467 retval = device_create_file(&port->dev, &dev_attr_event_char);
1468 if ((!retval) &&
1469 (priv->chip_type == FT232BM ||
1470 priv->chip_type == FT2232C ||
1471 priv->chip_type == FT232RL ||
1472 priv->chip_type == FT2232H ||
1473 priv->chip_type == FT4232H)) {
1474 retval = device_create_file(&port->dev,
1475 &dev_attr_latency_timer);
1476 }
1477 }
1478 return retval;
1479 }
1480
1481 static void remove_sysfs_attrs(struct usb_serial_port *port)
1482 {
1483 struct ftdi_private *priv = usb_get_serial_port_data(port);
1484
1485 dbg("%s", __func__);
1486
1487 /* XXX see create_sysfs_attrs */
1488 if (priv->chip_type != SIO) {
1489 device_remove_file(&port->dev, &dev_attr_event_char);
1490 if (priv->chip_type == FT232BM ||
1491 priv->chip_type == FT2232C ||
1492 priv->chip_type == FT232RL ||
1493 priv->chip_type == FT2232H ||
1494 priv->chip_type == FT4232H) {
1495 device_remove_file(&port->dev, &dev_attr_latency_timer);
1496 }
1497 }
1498
1499 }
1500
1501 /*
1502 * ***************************************************************************
1503 * FTDI driver specific functions
1504 * ***************************************************************************
1505 */
1506
1507 /* Probe function to check for special devices */
1508 static int ftdi_sio_probe(struct usb_serial *serial,
1509 const struct usb_device_id *id)
1510 {
1511 struct ftdi_sio_quirk *quirk =
1512 (struct ftdi_sio_quirk *)id->driver_info;
1513
1514 if (quirk && quirk->probe) {
1515 int ret = quirk->probe(serial);
1516 if (ret != 0)
1517 return ret;
1518 }
1519
1520 usb_set_serial_data(serial, (void *)id->driver_info);
1521
1522 return 0;
1523 }
1524
1525 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1526 {
1527 struct ftdi_private *priv;
1528 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1529
1530
1531 dbg("%s", __func__);
1532
1533 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1534 if (!priv) {
1535 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1536 sizeof(struct ftdi_private));
1537 return -ENOMEM;
1538 }
1539
1540 kref_init(&priv->kref);
1541 spin_lock_init(&priv->tx_lock);
1542 mutex_init(&priv->cfg_lock);
1543 init_waitqueue_head(&priv->delta_msr_wait);
1544
1545 priv->flags = ASYNC_LOW_LATENCY;
1546
1547 if (quirk && quirk->port_probe)
1548 quirk->port_probe(priv);
1549
1550 priv->port = port;
1551
1552 /* Free port's existing write urb and transfer buffer. */
1553 if (port->write_urb) {
1554 usb_free_urb(port->write_urb);
1555 port->write_urb = NULL;
1556 }
1557 kfree(port->bulk_out_buffer);
1558 port->bulk_out_buffer = NULL;
1559
1560 usb_set_serial_port_data(port, priv);
1561
1562 ftdi_determine_type(port);
1563 ftdi_set_max_packet_size(port);
1564 if (read_latency_timer(port) < 0)
1565 priv->latency = 16;
1566 create_sysfs_attrs(port);
1567 return 0;
1568 }
1569
1570 /* Setup for the USB-UIRT device, which requires hardwired
1571 * baudrate (38400 gets mapped to 312500) */
1572 /* Called from usbserial:serial_probe */
1573 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1574 {
1575 dbg("%s", __func__);
1576
1577 priv->flags |= ASYNC_SPD_CUST;
1578 priv->custom_divisor = 77;
1579 priv->force_baud = 38400;
1580 } /* ftdi_USB_UIRT_setup */
1581
1582 /* Setup for the HE-TIRA1 device, which requires hardwired
1583 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1584
1585 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1586 {
1587 dbg("%s", __func__);
1588
1589 priv->flags |= ASYNC_SPD_CUST;
1590 priv->custom_divisor = 240;
1591 priv->force_baud = 38400;
1592 priv->force_rtscts = 1;
1593 } /* ftdi_HE_TIRA1_setup */
1594
1595 /*
1596 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1597 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1598 */
1599 static int ndi_latency_timer = 1;
1600
1601 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1602 * baudrate (19200 gets mapped to 1200000).
1603 *
1604 * Called from usbserial:serial_probe.
1605 */
1606 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1607 {
1608 struct usb_device *udev = serial->dev;
1609 int latency = ndi_latency_timer;
1610
1611 if (latency == 0)
1612 latency = 1;
1613 if (latency > 99)
1614 latency = 99;
1615
1616 dbg("%s setting NDI device latency to %d", __func__, latency);
1617 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1618
1619 /* FIXME: errors are not returned */
1620 usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1621 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1622 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1623 latency, 0, NULL, 0, WDR_TIMEOUT);
1624 return 0;
1625 }
1626
1627 /*
1628 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1629 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1630 * userspace using openocd.
1631 */
1632 static int ftdi_jtag_probe(struct usb_serial *serial)
1633 {
1634 struct usb_device *udev = serial->dev;
1635 struct usb_interface *interface = serial->interface;
1636
1637 dbg("%s", __func__);
1638
1639 if (interface == udev->actconfig->interface[0]) {
1640 dev_info(&udev->dev,
1641 "Ignoring serial port reserved for JTAG\n");
1642 return -ENODEV;
1643 }
1644
1645 return 0;
1646 }
1647
1648 /*
1649 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1650 * We have to correct it if we want to read from it.
1651 */
1652 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1653 {
1654 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1655 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1656
1657 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1658 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1659 dev_info(&serial->dev->dev,
1660 "Fixing invalid wMaxPacketSize on read pipe\n");
1661 }
1662
1663 return 0;
1664 }
1665
1666 static void ftdi_sio_priv_release(struct kref *k)
1667 {
1668 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1669
1670 kfree(priv);
1671 }
1672
1673 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1674 {
1675 struct ftdi_private *priv = usb_get_serial_port_data(port);
1676
1677 dbg("%s", __func__);
1678
1679 remove_sysfs_attrs(port);
1680
1681 kref_put(&priv->kref, ftdi_sio_priv_release);
1682
1683 return 0;
1684 }
1685
1686 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1687 { /* ftdi_open */
1688 struct usb_device *dev = port->serial->dev;
1689 struct ftdi_private *priv = usb_get_serial_port_data(port);
1690 int result;
1691
1692 dbg("%s", __func__);
1693
1694 write_latency_timer(port);
1695
1696 /* No error checking for this (will get errors later anyway) */
1697 /* See ftdi_sio.h for description of what is reset */
1698 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1699 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1700 FTDI_SIO_RESET_SIO,
1701 priv->interface, NULL, 0, WDR_TIMEOUT);
1702
1703 /* Termios defaults are set by usb_serial_init. We don't change
1704 port->tty->termios - this would lose speed settings, etc.
1705 This is same behaviour as serial.c/rs_open() - Kuba */
1706
1707 /* ftdi_set_termios will send usb control messages */
1708 if (tty)
1709 ftdi_set_termios(tty, port, tty->termios);
1710
1711 /* Start reading from the device */
1712 result = usb_serial_generic_open(tty, port);
1713 if (!result)
1714 kref_get(&priv->kref);
1715
1716 return result;
1717 } /* ftdi_open */
1718
1719
1720 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1721 {
1722 struct ftdi_private *priv = usb_get_serial_port_data(port);
1723
1724 mutex_lock(&port->serial->disc_mutex);
1725 if (!port->serial->disconnected) {
1726 /* Disable flow control */
1727 if (!on && usb_control_msg(port->serial->dev,
1728 usb_sndctrlpipe(port->serial->dev, 0),
1729 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1730 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1731 0, priv->interface, NULL, 0,
1732 WDR_TIMEOUT) < 0) {
1733 dev_err(&port->dev, "error from flowcontrol urb\n");
1734 }
1735 /* drop RTS and DTR */
1736 if (on)
1737 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1738 else
1739 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1740 }
1741 mutex_unlock(&port->serial->disc_mutex);
1742 }
1743
1744 /*
1745 * usbserial:__serial_close only calls ftdi_close if the point is open
1746 *
1747 * This only gets called when it is the last close
1748 *
1749 *
1750 */
1751
1752 static void ftdi_close(struct usb_serial_port *port)
1753 { /* ftdi_close */
1754 struct ftdi_private *priv = usb_get_serial_port_data(port);
1755
1756 dbg("%s", __func__);
1757
1758 /* shutdown our bulk read */
1759 usb_kill_urb(port->read_urb);
1760 kref_put(&priv->kref, ftdi_sio_priv_release);
1761 } /* ftdi_close */
1762
1763
1764
1765 /* The SIO requires the first byte to have:
1766 * B0 1
1767 * B1 0
1768 * B2..7 length of message excluding byte 0
1769 *
1770 * The new devices do not require this byte
1771 */
1772 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1773 const unsigned char *buf, int count)
1774 { /* ftdi_write */
1775 struct ftdi_private *priv = usb_get_serial_port_data(port);
1776 struct urb *urb;
1777 unsigned char *buffer;
1778 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1779 int status;
1780 int transfer_size;
1781 unsigned long flags;
1782
1783 dbg("%s port %d, %d bytes", __func__, port->number, count);
1784
1785 if (count == 0) {
1786 dbg("write request of 0 bytes");
1787 return 0;
1788 }
1789 spin_lock_irqsave(&priv->tx_lock, flags);
1790 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1791 spin_unlock_irqrestore(&priv->tx_lock, flags);
1792 dbg("%s - write limit hit", __func__);
1793 return 0;
1794 }
1795 priv->tx_outstanding_urbs++;
1796 spin_unlock_irqrestore(&priv->tx_lock, flags);
1797
1798 data_offset = priv->write_offset;
1799 dbg("data_offset set to %d", data_offset);
1800
1801 /* Determine total transfer size */
1802 transfer_size = count;
1803 if (data_offset > 0) {
1804 /* Original sio needs control bytes too... */
1805 transfer_size += (data_offset *
1806 ((count + (priv->max_packet_size - 1 - data_offset)) /
1807 (priv->max_packet_size - data_offset)));
1808 }
1809
1810 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1811 if (!buffer) {
1812 dev_err(&port->dev,
1813 "%s ran out of kernel memory for urb ...\n", __func__);
1814 count = -ENOMEM;
1815 goto error_no_buffer;
1816 }
1817
1818 urb = usb_alloc_urb(0, GFP_ATOMIC);
1819 if (!urb) {
1820 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1821 count = -ENOMEM;
1822 goto error_no_urb;
1823 }
1824
1825 /* Copy data */
1826 if (data_offset > 0) {
1827 /* Original sio requires control byte at start of
1828 each packet. */
1829 int user_pktsz = priv->max_packet_size - data_offset;
1830 int todo = count;
1831 unsigned char *first_byte = buffer;
1832 const unsigned char *current_position = buf;
1833
1834 while (todo > 0) {
1835 if (user_pktsz > todo)
1836 user_pktsz = todo;
1837 /* Write the control byte at the front of the packet*/
1838 *first_byte = 1 | ((user_pktsz) << 2);
1839 /* Copy data for packet */
1840 memcpy(first_byte + data_offset,
1841 current_position, user_pktsz);
1842 first_byte += user_pktsz + data_offset;
1843 current_position += user_pktsz;
1844 todo -= user_pktsz;
1845 }
1846 } else {
1847 /* No control byte required. */
1848 /* Copy in the data to send */
1849 memcpy(buffer, buf, count);
1850 }
1851
1852 usb_serial_debug_data(debug, &port->dev, __func__,
1853 transfer_size, buffer);
1854
1855 /* fill the buffer and send it */
1856 usb_fill_bulk_urb(urb, port->serial->dev,
1857 usb_sndbulkpipe(port->serial->dev,
1858 port->bulk_out_endpointAddress),
1859 buffer, transfer_size,
1860 ftdi_write_bulk_callback, port);
1861
1862 status = usb_submit_urb(urb, GFP_ATOMIC);
1863 if (status) {
1864 dev_err(&port->dev,
1865 "%s - failed submitting write urb, error %d\n",
1866 __func__, status);
1867 count = status;
1868 goto error;
1869 } else {
1870 spin_lock_irqsave(&priv->tx_lock, flags);
1871 priv->tx_outstanding_bytes += count;
1872 spin_unlock_irqrestore(&priv->tx_lock, flags);
1873 }
1874
1875 /* we are done with this urb, so let the host driver
1876 * really free it when it is finished with it */
1877 usb_free_urb(urb);
1878
1879 dbg("%s write returning: %d", __func__, count);
1880 return count;
1881 error:
1882 usb_free_urb(urb);
1883 error_no_urb:
1884 kfree(buffer);
1885 error_no_buffer:
1886 spin_lock_irqsave(&priv->tx_lock, flags);
1887 priv->tx_outstanding_urbs--;
1888 spin_unlock_irqrestore(&priv->tx_lock, flags);
1889 return count;
1890 } /* ftdi_write */
1891
1892
1893 /* This function may get called when the device is closed */
1894
1895 static void ftdi_write_bulk_callback(struct urb *urb)
1896 {
1897 unsigned long flags;
1898 struct usb_serial_port *port = urb->context;
1899 struct ftdi_private *priv;
1900 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1901 unsigned long countback;
1902 int status = urb->status;
1903
1904 /* free up the transfer buffer, as usb_free_urb() does not do this */
1905 kfree(urb->transfer_buffer);
1906
1907 dbg("%s - port %d", __func__, port->number);
1908
1909 priv = usb_get_serial_port_data(port);
1910 if (!priv) {
1911 dbg("%s - bad port private data pointer - exiting", __func__);
1912 return;
1913 }
1914 /* account for transferred data */
1915 countback = urb->transfer_buffer_length;
1916 data_offset = priv->write_offset;
1917 if (data_offset > 0) {
1918 /* Subtract the control bytes */
1919 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
1920 }
1921 spin_lock_irqsave(&priv->tx_lock, flags);
1922 --priv->tx_outstanding_urbs;
1923 priv->tx_outstanding_bytes -= countback;
1924 spin_unlock_irqrestore(&priv->tx_lock, flags);
1925
1926 if (status) {
1927 dbg("nonzero write bulk status received: %d", status);
1928 }
1929
1930 usb_serial_port_softint(port);
1931 } /* ftdi_write_bulk_callback */
1932
1933
1934 static int ftdi_write_room(struct tty_struct *tty)
1935 {
1936 struct usb_serial_port *port = tty->driver_data;
1937 struct ftdi_private *priv = usb_get_serial_port_data(port);
1938 int room;
1939 unsigned long flags;
1940
1941 dbg("%s - port %d", __func__, port->number);
1942
1943 spin_lock_irqsave(&priv->tx_lock, flags);
1944 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1945 /*
1946 * We really can take anything the user throws at us
1947 * but let's pick a nice big number to tell the tty
1948 * layer that we have lots of free space
1949 */
1950 room = 2048;
1951 } else {
1952 room = 0;
1953 }
1954 spin_unlock_irqrestore(&priv->tx_lock, flags);
1955 return room;
1956 }
1957
1958 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1959 {
1960 struct usb_serial_port *port = tty->driver_data;
1961 struct ftdi_private *priv = usb_get_serial_port_data(port);
1962 int buffered;
1963 unsigned long flags;
1964
1965 dbg("%s - port %d", __func__, port->number);
1966
1967 spin_lock_irqsave(&priv->tx_lock, flags);
1968 buffered = (int)priv->tx_outstanding_bytes;
1969 spin_unlock_irqrestore(&priv->tx_lock, flags);
1970 if (buffered < 0) {
1971 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1972 __func__);
1973 buffered = 0;
1974 }
1975 return buffered;
1976 }
1977
1978 static int ftdi_process_packet(struct tty_struct *tty,
1979 struct usb_serial_port *port, struct ftdi_private *priv,
1980 char *packet, int len)
1981 {
1982 int i;
1983 char status;
1984 char flag;
1985 char *ch;
1986
1987 dbg("%s - port %d", __func__, port->number);
1988
1989 if (len < 2) {
1990 dbg("malformed packet");
1991 return 0;
1992 }
1993
1994 /* Compare new line status to the old one, signal if different/
1995 N.B. packet may be processed more than once, but differences
1996 are only processed once. */
1997 status = packet[0] & FTDI_STATUS_B0_MASK;
1998 if (status != priv->prev_status) {
1999 priv->diff_status |= status ^ priv->prev_status;
2000 wake_up_interruptible(&priv->delta_msr_wait);
2001 priv->prev_status = status;
2002 }
2003
2004 /*
2005 * Although the device uses a bitmask and hence can have multiple
2006 * errors on a packet - the order here sets the priority the error is
2007 * returned to the tty layer.
2008 */
2009 flag = TTY_NORMAL;
2010 if (packet[1] & FTDI_RS_OE) {
2011 flag = TTY_OVERRUN;
2012 dbg("OVERRRUN error");
2013 }
2014 if (packet[1] & FTDI_RS_BI) {
2015 flag = TTY_BREAK;
2016 dbg("BREAK received");
2017 usb_serial_handle_break(port);
2018 }
2019 if (packet[1] & FTDI_RS_PE) {
2020 flag = TTY_PARITY;
2021 dbg("PARITY error");
2022 }
2023 if (packet[1] & FTDI_RS_FE) {
2024 flag = TTY_FRAME;
2025 dbg("FRAMING error");
2026 }
2027
2028 len -= 2;
2029 if (!len)
2030 return 0; /* status only */
2031 ch = packet + 2;
2032
2033 if (!(port->port.console && port->sysrq) && flag == TTY_NORMAL)
2034 tty_insert_flip_string(tty, ch, len);
2035 else {
2036 for (i = 0; i < len; i++, ch++) {
2037 if (!usb_serial_handle_sysrq_char(tty, port, *ch))
2038 tty_insert_flip_char(tty, *ch, flag);
2039 }
2040 }
2041 return len;
2042 }
2043
2044 static void ftdi_process_read_urb(struct urb *urb)
2045 {
2046 struct usb_serial_port *port = urb->context;
2047 struct tty_struct *tty;
2048 struct ftdi_private *priv = usb_get_serial_port_data(port);
2049 char *data = (char *)urb->transfer_buffer;
2050 int i;
2051 int len;
2052 int count = 0;
2053
2054 tty = tty_port_tty_get(&port->port);
2055 if (!tty)
2056 return;
2057
2058 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2059 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2060 count += ftdi_process_packet(tty, port, priv, &data[i], len);
2061 }
2062
2063 if (count)
2064 tty_flip_buffer_push(tty);
2065 tty_kref_put(tty);
2066 }
2067
2068 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2069 {
2070 struct usb_serial_port *port = tty->driver_data;
2071 struct ftdi_private *priv = usb_get_serial_port_data(port);
2072 __u16 urb_value;
2073
2074 /* break_state = -1 to turn on break, and 0 to turn off break */
2075 /* see drivers/char/tty_io.c to see it used */
2076 /* last_set_data_urb_value NEVER has the break bit set in it */
2077
2078 if (break_state)
2079 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2080 else
2081 urb_value = priv->last_set_data_urb_value;
2082
2083 if (usb_control_msg(port->serial->dev,
2084 usb_sndctrlpipe(port->serial->dev, 0),
2085 FTDI_SIO_SET_DATA_REQUEST,
2086 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2087 urb_value , priv->interface,
2088 NULL, 0, WDR_TIMEOUT) < 0) {
2089 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2090 "(state was %d)\n", __func__, break_state);
2091 }
2092
2093 dbg("%s break state is %d - urb is %d", __func__,
2094 break_state, urb_value);
2095
2096 }
2097
2098
2099 /* old_termios contains the original termios settings and tty->termios contains
2100 * the new setting to be used
2101 * WARNING: set_termios calls this with old_termios in kernel space
2102 */
2103
2104 static void ftdi_set_termios(struct tty_struct *tty,
2105 struct usb_serial_port *port, struct ktermios *old_termios)
2106 { /* ftdi_termios */
2107 struct usb_device *dev = port->serial->dev;
2108 struct ftdi_private *priv = usb_get_serial_port_data(port);
2109 struct ktermios *termios = tty->termios;
2110 unsigned int cflag = termios->c_cflag;
2111 __u16 urb_value; /* will hold the new flags */
2112
2113 /* Added for xon/xoff support */
2114 unsigned int iflag = termios->c_iflag;
2115 unsigned char vstop;
2116 unsigned char vstart;
2117
2118 dbg("%s", __func__);
2119
2120 /* Force baud rate if this device requires it, unless it is set to
2121 B0. */
2122 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2123 dbg("%s: forcing baud rate for this device", __func__);
2124 tty_encode_baud_rate(tty, priv->force_baud,
2125 priv->force_baud);
2126 }
2127
2128 /* Force RTS-CTS if this device requires it. */
2129 if (priv->force_rtscts) {
2130 dbg("%s: forcing rtscts for this device", __func__);
2131 termios->c_cflag |= CRTSCTS;
2132 }
2133
2134 cflag = termios->c_cflag;
2135
2136 /* FIXME -For this cut I don't care if the line is really changing or
2137 not - so just do the change regardless - should be able to
2138 compare old_termios and tty->termios */
2139 /* NOTE These routines can get interrupted by
2140 ftdi_sio_read_bulk_callback - need to examine what this means -
2141 don't see any problems yet */
2142
2143 /* Set number of data bits, parity, stop bits */
2144
2145 urb_value = 0;
2146 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2147 FTDI_SIO_SET_DATA_STOP_BITS_1);
2148 if (cflag & PARENB) {
2149 if (cflag & CMSPAR)
2150 urb_value |= cflag & PARODD ?
2151 FTDI_SIO_SET_DATA_PARITY_MARK :
2152 FTDI_SIO_SET_DATA_PARITY_SPACE;
2153 else
2154 urb_value |= cflag & PARODD ?
2155 FTDI_SIO_SET_DATA_PARITY_ODD :
2156 FTDI_SIO_SET_DATA_PARITY_EVEN;
2157 } else {
2158 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2159 }
2160 if (cflag & CSIZE) {
2161 switch (cflag & CSIZE) {
2162 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2163 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2164 default:
2165 dev_err(&port->dev, "CSIZE was set but not CS7-CS8\n");
2166 }
2167 }
2168
2169 /* This is needed by the break command since it uses the same command
2170 - but is or'ed with this value */
2171 priv->last_set_data_urb_value = urb_value;
2172
2173 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2174 FTDI_SIO_SET_DATA_REQUEST,
2175 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2176 urb_value , priv->interface,
2177 NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
2178 dev_err(&port->dev, "%s FAILED to set "
2179 "databits/stopbits/parity\n", __func__);
2180 }
2181
2182 /* Now do the baudrate */
2183 if ((cflag & CBAUD) == B0) {
2184 /* Disable flow control */
2185 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2186 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2187 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2188 0, priv->interface,
2189 NULL, 0, WDR_TIMEOUT) < 0) {
2190 dev_err(&port->dev,
2191 "%s error from disable flowcontrol urb\n",
2192 __func__);
2193 }
2194 /* Drop RTS and DTR */
2195 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2196 } else {
2197 /* set the baudrate determined before */
2198 mutex_lock(&priv->cfg_lock);
2199 if (change_speed(tty, port))
2200 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2201 __func__);
2202 mutex_unlock(&priv->cfg_lock);
2203 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2204 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2205 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2206 }
2207
2208 /* Set flow control */
2209 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2210 if (cflag & CRTSCTS) {
2211 dbg("%s Setting to CRTSCTS flow control", __func__);
2212 if (usb_control_msg(dev,
2213 usb_sndctrlpipe(dev, 0),
2214 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2215 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2216 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2217 NULL, 0, WDR_TIMEOUT) < 0) {
2218 dev_err(&port->dev,
2219 "urb failed to set to rts/cts flow control\n");
2220 }
2221
2222 } else {
2223 /*
2224 * Xon/Xoff code
2225 *
2226 * Check the IXOFF status in the iflag component of the
2227 * termios structure. If IXOFF is not set, the pre-xon/xoff
2228 * code is executed.
2229 */
2230 if (iflag & IXOFF) {
2231 dbg("%s request to enable xonxoff iflag=%04x",
2232 __func__, iflag);
2233 /* Try to enable the XON/XOFF on the ftdi_sio
2234 * Set the vstart and vstop -- could have been done up
2235 * above where a lot of other dereferencing is done but
2236 * that would be very inefficient as vstart and vstop
2237 * are not always needed.
2238 */
2239 vstart = termios->c_cc[VSTART];
2240 vstop = termios->c_cc[VSTOP];
2241 urb_value = (vstop << 8) | (vstart);
2242
2243 if (usb_control_msg(dev,
2244 usb_sndctrlpipe(dev, 0),
2245 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2246 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2247 urb_value , (FTDI_SIO_XON_XOFF_HS
2248 | priv->interface),
2249 NULL, 0, WDR_TIMEOUT) < 0) {
2250 dev_err(&port->dev, "urb failed to set to "
2251 "xon/xoff flow control\n");
2252 }
2253 } else {
2254 /* else clause to only run if cflag ! CRTSCTS and iflag
2255 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2256 * stack - not by device */
2257 dbg("%s Turning off hardware flow control", __func__);
2258 if (usb_control_msg(dev,
2259 usb_sndctrlpipe(dev, 0),
2260 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2261 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2262 0, priv->interface,
2263 NULL, 0, WDR_TIMEOUT) < 0) {
2264 dev_err(&port->dev,
2265 "urb failed to clear flow control\n");
2266 }
2267 }
2268
2269 }
2270 return;
2271 }
2272
2273 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2274 {
2275 struct usb_serial_port *port = tty->driver_data;
2276 struct ftdi_private *priv = usb_get_serial_port_data(port);
2277 unsigned char *buf;
2278 int len;
2279 int ret;
2280
2281 dbg("%s TIOCMGET", __func__);
2282
2283 buf = kmalloc(2, GFP_KERNEL);
2284 if (!buf)
2285 return -ENOMEM;
2286 /*
2287 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2288 * the same format as the data returned from the in point.
2289 */
2290 switch (priv->chip_type) {
2291 case SIO:
2292 len = 1;
2293 break;
2294 case FT8U232AM:
2295 case FT232BM:
2296 case FT2232C:
2297 case FT232RL:
2298 case FT2232H:
2299 case FT4232H:
2300 len = 2;
2301 break;
2302 default:
2303 ret = -EFAULT;
2304 goto out;
2305 }
2306
2307 ret = usb_control_msg(port->serial->dev,
2308 usb_rcvctrlpipe(port->serial->dev, 0),
2309 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2310 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2311 0, priv->interface,
2312 buf, len, WDR_TIMEOUT);
2313 if (ret < 0)
2314 goto out;
2315
2316 ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2317 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2318 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2319 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2320 priv->last_dtr_rts;
2321 out:
2322 kfree(buf);
2323 return ret;
2324 }
2325
2326 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2327 unsigned int set, unsigned int clear)
2328 {
2329 struct usb_serial_port *port = tty->driver_data;
2330 dbg("%s TIOCMSET", __func__);
2331 return update_mctrl(port, set, clear);
2332 }
2333
2334
2335 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2336 unsigned int cmd, unsigned long arg)
2337 {
2338 struct usb_serial_port *port = tty->driver_data;
2339 struct ftdi_private *priv = usb_get_serial_port_data(port);
2340
2341 dbg("%s cmd 0x%04x", __func__, cmd);
2342
2343 /* Based on code from acm.c and others */
2344 switch (cmd) {
2345
2346 case TIOCGSERIAL: /* gets serial port data */
2347 return get_serial_info(port,
2348 (struct serial_struct __user *) arg);
2349
2350 case TIOCSSERIAL: /* sets serial port data */
2351 return set_serial_info(tty, port,
2352 (struct serial_struct __user *) arg);
2353
2354 /*
2355 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2356 * - mask passed in arg for lines of interest
2357 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2358 * Caller should use TIOCGICOUNT to see which one it was.
2359 *
2360 * This code is borrowed from linux/drivers/char/serial.c
2361 */
2362 case TIOCMIWAIT:
2363 while (priv != NULL) {
2364 interruptible_sleep_on(&priv->delta_msr_wait);
2365 /* see if a signal did it */
2366 if (signal_pending(current))
2367 return -ERESTARTSYS;
2368 else {
2369 char diff = priv->diff_status;
2370
2371 if (diff == 0)
2372 return -EIO; /* no change => error */
2373
2374 /* Consume all events */
2375 priv->diff_status = 0;
2376
2377 /* Return 0 if caller wanted to know about
2378 these bits */
2379 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2380 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2381 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2382 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2383 return 0;
2384 }
2385 /*
2386 * Otherwise caller can't care less about what
2387 * happened,and so we continue to wait for more
2388 * events.
2389 */
2390 }
2391 }
2392 return 0;
2393 default:
2394 break;
2395 }
2396 /* This is not necessarily an error - turns out the higher layers
2397 * will do some ioctls themselves (see comment above)
2398 */
2399 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2400 return -ENOIOCTLCMD;
2401 }
2402
2403 static int __init ftdi_init(void)
2404 {
2405 int retval;
2406
2407 dbg("%s", __func__);
2408 if (vendor > 0 && product > 0) {
2409 /* Add user specified VID/PID to reserved element of table. */
2410 int i;
2411 for (i = 0; id_table_combined[i].idVendor; i++)
2412 ;
2413 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2414 id_table_combined[i].idVendor = vendor;
2415 id_table_combined[i].idProduct = product;
2416 }
2417 retval = usb_serial_register(&ftdi_sio_device);
2418 if (retval)
2419 goto failed_sio_register;
2420 retval = usb_register(&ftdi_driver);
2421 if (retval)
2422 goto failed_usb_register;
2423
2424 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2425 DRIVER_DESC "\n");
2426 return 0;
2427 failed_usb_register:
2428 usb_serial_deregister(&ftdi_sio_device);
2429 failed_sio_register:
2430 return retval;
2431 }
2432
2433
2434 static void __exit ftdi_exit(void)
2435 {
2436
2437 dbg("%s", __func__);
2438
2439 usb_deregister(&ftdi_driver);
2440 usb_serial_deregister(&ftdi_sio_device);
2441
2442 }
2443
2444
2445 module_init(ftdi_init);
2446 module_exit(ftdi_exit);
2447
2448 MODULE_AUTHOR(DRIVER_AUTHOR);
2449 MODULE_DESCRIPTION(DRIVER_DESC);
2450 MODULE_LICENSE("GPL");
2451
2452 module_param(debug, bool, S_IRUGO | S_IWUSR);
2453 MODULE_PARM_DESC(debug, "Debug enabled or not");
2454 module_param(vendor, ushort, 0);
2455 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2456 __MODULE_STRING(FTDI_VID)")");
2457 module_param(product, ushort, 0);
2458 MODULE_PARM_DESC(product, "User specified product ID");
2459
2460 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2461 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree