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USB: ftdi_sio: remove pointless syslog spew
[linux-2.6/x86.git] / drivers / usb / serial / ftdi_sio.c
blobadeb23fb800372291935f1ce0b65218fa07514c1
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/uaccess.h>
42 #include <linux/usb.h>
43 #include <linux/serial.h>
44 #include <linux/usb/serial.h>
45 #include "ftdi_sio.h"
46
47 /*
48 * Version Information
49 */
50 #define DRIVER_VERSION "v1.4.3"
51 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
52 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
53
54 static int debug;
55 static __u16 vendor = FTDI_VID;
56 static __u16 product;
57
58 struct ftdi_private {
59 ftdi_chip_type_t chip_type;
60 /* type of device, either SIO or FT8U232AM */
61 int baud_base; /* baud base clock for divisor setting */
62 int custom_divisor; /* custom_divisor kludge, this is for
63 baud_base (different from what goes to the
64 chip!) */
65 __u16 last_set_data_urb_value ;
66 /* the last data state set - needed for doing
67 * a break
68 */
69 int write_offset; /* This is the offset in the usb data block to
70 * write the serial data - it varies between
71 * devices
72 */
73 int flags; /* some ASYNC_xxxx flags are supported */
74 unsigned long last_dtr_rts; /* saved modem control outputs */
75 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
76 char prev_status, diff_status; /* Used for TIOCMIWAIT */
77 __u8 rx_flags; /* receive state flags (throttling) */
78 spinlock_t rx_lock; /* spinlock for receive state */
79 struct delayed_work rx_work;
80 struct usb_serial_port *port;
81 int rx_processed;
82 unsigned long rx_bytes;
83
84 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
85
86 speed_t force_baud; /* if non-zero, force the baud rate to
87 this value */
88 int force_rtscts; /* if non-zero, force RTS-CTS to always
89 be enabled */
90
91 spinlock_t tx_lock; /* spinlock for transmit state */
92 unsigned long tx_bytes;
93 unsigned long tx_outstanding_bytes;
94 unsigned long tx_outstanding_urbs;
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 void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
107 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
108
109 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
110 .probe = ftdi_jtag_probe,
111 };
112
113 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
114 .probe = ftdi_mtxorb_hack_setup,
115 };
116
117 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
118 .port_probe = ftdi_USB_UIRT_setup,
119 };
120
121 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
122 .port_probe = ftdi_HE_TIRA1_setup,
123 };
124
125 /*
126 * The 8U232AM has the same API as the sio except for:
127 * - it can support MUCH higher baudrates; up to:
128 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
129 * o 230400 at 12MHz
130 * so .. 8U232AM's baudrate setting codes are different
131 * - it has a two byte status code.
132 * - it returns characters every 16ms (the FTDI does it every 40ms)
133 *
134 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
135 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
136 * combinations in both tables.
137 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
138 * but I don't know if those ever went into mass production. [Ian Abbott]
139 */
140
141
142
143 static struct usb_device_id id_table_combined [] = {
144 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
145 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
146 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
147 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
160 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
168 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
169 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
170 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
171 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
180 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
189 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
229 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
235 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
275 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
277 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
279 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
281 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
283 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
285 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
453 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
454 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
455 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
456 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
457 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
504 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
505 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
506 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
507 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
508 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
509 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
510 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
511 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
512 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
513 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
514 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
544 /*
545 * Due to many user requests for multiple ELV devices we enable
546 * them by default.
547 */
548 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
569 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
570 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
571 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
572 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
573 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
577 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
578 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
579 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
580 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
581 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
582 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
583 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
584 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
586 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
587 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
588 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
589 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
590 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
592 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
600 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
601 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
610 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
612 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
613 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
614 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
615 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
619 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
621 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
622 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
623 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
626 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
627 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
628 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
629 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
630 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
631 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
632 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
633 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
634 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
635 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
636 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
637 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
638 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
639 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
640 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
641 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
642 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
643 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
644 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
645 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
646 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
647 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
648 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
649 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
650 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
651 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
652 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
653 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
654 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
655 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
656 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
657 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
658 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
659 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
660 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
661 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
663 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
664 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
665 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
666 { USB_DEVICE(ATMEL_VID, STK541_PID) },
667 { USB_DEVICE(DE_VID, STB_PID) },
668 { USB_DEVICE(DE_VID, WHT_PID) },
669 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
670 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
671 { }, /* Optional parameter entry */
672 { } /* Terminating entry */
673 };
674
675 MODULE_DEVICE_TABLE(usb, id_table_combined);
676
677 static struct usb_driver ftdi_driver = {
678 .name = "ftdi_sio",
679 .probe = usb_serial_probe,
680 .disconnect = usb_serial_disconnect,
681 .id_table = id_table_combined,
682 .no_dynamic_id = 1,
683 };
684
685 static const char *ftdi_chip_name[] = {
686 [SIO] = "SIO", /* the serial part of FT8U100AX */
687 [FT8U232AM] = "FT8U232AM",
688 [FT232BM] = "FT232BM",
689 [FT2232C] = "FT2232C",
690 [FT232RL] = "FT232RL",
691 };
692
693
694 /* Constants for read urb and write urb */
695 #define BUFSZ 512
696 #define PKTSZ 64
697
698 /* rx_flags */
699 #define THROTTLED 0x01
700 #define ACTUALLY_THROTTLED 0x02
701
702 /* Used for TIOCMIWAIT */
703 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
704 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
705 /* End TIOCMIWAIT */
706
707 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
708 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
709
710 /* function prototypes for a FTDI serial converter */
711 static int ftdi_sio_probe(struct usb_serial *serial,
712 const struct usb_device_id *id);
713 static void ftdi_shutdown(struct usb_serial *serial);
714 static int ftdi_sio_port_probe(struct usb_serial_port *port);
715 static int ftdi_sio_port_remove(struct usb_serial_port *port);
716 static int ftdi_open(struct tty_struct *tty,
717 struct usb_serial_port *port, struct file *filp);
718 static void ftdi_close(struct tty_struct *tty,
719 struct usb_serial_port *port, struct file *filp);
720 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
721 const unsigned char *buf, int count);
722 static int ftdi_write_room(struct tty_struct *tty);
723 static int ftdi_chars_in_buffer(struct tty_struct *tty);
724 static void ftdi_write_bulk_callback(struct urb *urb);
725 static void ftdi_read_bulk_callback(struct urb *urb);
726 static void ftdi_process_read(struct work_struct *work);
727 static void ftdi_set_termios(struct tty_struct *tty,
728 struct usb_serial_port *port, struct ktermios *old);
729 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
730 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
731 unsigned int set, unsigned int clear);
732 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
733 unsigned int cmd, unsigned long arg);
734 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
735 static void ftdi_throttle(struct tty_struct *tty);
736 static void ftdi_unthrottle(struct tty_struct *tty);
737
738 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
739 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
740 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
741 static __u32 ftdi_232bm_baud_to_divisor(int baud);
742
743 static struct usb_serial_driver ftdi_sio_device = {
744 .driver = {
745 .owner = THIS_MODULE,
746 .name = "ftdi_sio",
747 },
748 .description = "FTDI USB Serial Device",
749 .usb_driver = &ftdi_driver ,
750 .id_table = id_table_combined,
751 .num_ports = 1,
752 .probe = ftdi_sio_probe,
753 .port_probe = ftdi_sio_port_probe,
754 .port_remove = ftdi_sio_port_remove,
755 .open = ftdi_open,
756 .close = ftdi_close,
757 .throttle = ftdi_throttle,
758 .unthrottle = ftdi_unthrottle,
759 .write = ftdi_write,
760 .write_room = ftdi_write_room,
761 .chars_in_buffer = ftdi_chars_in_buffer,
762 .read_bulk_callback = ftdi_read_bulk_callback,
763 .write_bulk_callback = ftdi_write_bulk_callback,
764 .tiocmget = ftdi_tiocmget,
765 .tiocmset = ftdi_tiocmset,
766 .ioctl = ftdi_ioctl,
767 .set_termios = ftdi_set_termios,
768 .break_ctl = ftdi_break_ctl,
769 .shutdown = ftdi_shutdown,
770 };
771
772
773 #define WDR_TIMEOUT 5000 /* default urb timeout */
774 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
775
776 /* High and low are for DTR, RTS etc etc */
777 #define HIGH 1
778 #define LOW 0
779
780 /* number of outstanding urbs to prevent userspace DoS from happening */
781 #define URB_UPPER_LIMIT 42
782
783 /*
784 * ***************************************************************************
785 * Utility functions
786 * ***************************************************************************
787 */
788
789 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
790 {
791 unsigned short int divisor;
792 /* divisor shifted 3 bits to the left */
793 int divisor3 = base / 2 / baud;
794 if ((divisor3 & 0x7) == 7)
795 divisor3++; /* round x.7/8 up to x+1 */
796 divisor = divisor3 >> 3;
797 divisor3 &= 0x7;
798 if (divisor3 == 1)
799 divisor |= 0xc000;
800 else if (divisor3 >= 4)
801 divisor |= 0x4000;
802 else if (divisor3 != 0)
803 divisor |= 0x8000;
804 else if (divisor == 1)
805 divisor = 0; /* special case for maximum baud rate */
806 return divisor;
807 }
808
809 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
810 {
811 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
812 }
813
814 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
815 {
816 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
817 __u32 divisor;
818 /* divisor shifted 3 bits to the left */
819 int divisor3 = base / 2 / baud;
820 divisor = divisor3 >> 3;
821 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
822 /* Deal with special cases for highest baud rates. */
823 if (divisor == 1)
824 divisor = 0;
825 else if (divisor == 0x4001)
826 divisor = 1;
827 return divisor;
828 }
829
830 static __u32 ftdi_232bm_baud_to_divisor(int baud)
831 {
832 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
833 }
834
835 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
836 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
837
838 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
839 unsigned int clear)
840 {
841 struct ftdi_private *priv = usb_get_serial_port_data(port);
842 char *buf;
843 unsigned urb_value;
844 int rv;
845
846 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
847 dbg("%s - DTR|RTS not being set|cleared", __func__);
848 return 0; /* no change */
849 }
850
851 buf = kmalloc(1, GFP_NOIO);
852 if (!buf)
853 return -ENOMEM;
854
855 clear &= ~set; /* 'set' takes precedence over 'clear' */
856 urb_value = 0;
857 if (clear & TIOCM_DTR)
858 urb_value |= FTDI_SIO_SET_DTR_LOW;
859 if (clear & TIOCM_RTS)
860 urb_value |= FTDI_SIO_SET_RTS_LOW;
861 if (set & TIOCM_DTR)
862 urb_value |= FTDI_SIO_SET_DTR_HIGH;
863 if (set & TIOCM_RTS)
864 urb_value |= FTDI_SIO_SET_RTS_HIGH;
865 rv = usb_control_msg(port->serial->dev,
866 usb_sndctrlpipe(port->serial->dev, 0),
867 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
868 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
869 urb_value, priv->interface,
870 buf, 0, WDR_TIMEOUT);
871
872 kfree(buf);
873 if (rv < 0) {
874 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
875 __func__,
876 (set & TIOCM_DTR) ? "HIGH" :
877 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
878 (set & TIOCM_RTS) ? "HIGH" :
879 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
880 } else {
881 dbg("%s - DTR %s, RTS %s", __func__,
882 (set & TIOCM_DTR) ? "HIGH" :
883 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
884 (set & TIOCM_RTS) ? "HIGH" :
885 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
886 /* FIXME: locking on last_dtr_rts */
887 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
888 }
889 return rv;
890 }
891
892
893 static __u32 get_ftdi_divisor(struct tty_struct *tty,
894 struct usb_serial_port *port)
895 { /* get_ftdi_divisor */
896 struct ftdi_private *priv = usb_get_serial_port_data(port);
897 __u32 div_value = 0;
898 int div_okay = 1;
899 int baud;
900
901 /*
902 * The logic involved in setting the baudrate can be cleanly split into
903 * 3 steps.
904 * 1. Standard baud rates are set in tty->termios->c_cflag
905 * 2. If these are not enough, you can set any speed using alt_speed as
906 * follows:
907 * - set tty->termios->c_cflag speed to B38400
908 * - set your real speed in tty->alt_speed; it gets ignored when
909 * alt_speed==0, (or)
910 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
911 * follows:
912 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
913 * this just sets alt_speed to (HI: 57600, VHI: 115200,
914 * SHI: 230400, WARP: 460800)
915 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
916 * 3. You can also set baud rate by setting custom divisor as follows
917 * - set tty->termios->c_cflag speed to B38400
918 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
919 * follows:
920 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
921 * o custom_divisor set to baud_base / your_new_baudrate
922 * ** Step 3 is done courtesy of code borrowed from serial.c
923 * I should really spend some time and separate + move this common
924 * code to serial.c, it is replicated in nearly every serial driver
925 * you see.
926 */
927
928 /* 1. Get the baud rate from the tty settings, this observes
929 alt_speed hack */
930
931 baud = tty_get_baud_rate(tty);
932 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
933
934 /* 2. Observe async-compatible custom_divisor hack, update baudrate
935 if needed */
936
937 if (baud == 38400 &&
938 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
939 (priv->custom_divisor)) {
940 baud = priv->baud_base / priv->custom_divisor;
941 dbg("%s - custom divisor %d sets baud rate to %d",
942 __func__, priv->custom_divisor, baud);
943 }
944
945 /* 3. Convert baudrate to device-specific divisor */
946
947 if (!baud)
948 baud = 9600;
949 switch (priv->chip_type) {
950 case SIO: /* SIO chip */
951 switch (baud) {
952 case 300: div_value = ftdi_sio_b300; break;
953 case 600: div_value = ftdi_sio_b600; break;
954 case 1200: div_value = ftdi_sio_b1200; break;
955 case 2400: div_value = ftdi_sio_b2400; break;
956 case 4800: div_value = ftdi_sio_b4800; break;
957 case 9600: div_value = ftdi_sio_b9600; break;
958 case 19200: div_value = ftdi_sio_b19200; break;
959 case 38400: div_value = ftdi_sio_b38400; break;
960 case 57600: div_value = ftdi_sio_b57600; break;
961 case 115200: div_value = ftdi_sio_b115200; break;
962 } /* baud */
963 if (div_value == 0) {
964 dbg("%s - Baudrate (%d) requested is not supported",
965 __func__, baud);
966 div_value = ftdi_sio_b9600;
967 baud = 9600;
968 div_okay = 0;
969 }
970 break;
971 case FT8U232AM: /* 8U232AM chip */
972 if (baud <= 3000000) {
973 div_value = ftdi_232am_baud_to_divisor(baud);
974 } else {
975 dbg("%s - Baud rate too high!", __func__);
976 baud = 9600;
977 div_value = ftdi_232am_baud_to_divisor(9600);
978 div_okay = 0;
979 }
980 break;
981 case FT232BM: /* FT232BM chip */
982 case FT2232C: /* FT2232C chip */
983 case FT232RL:
984 if (baud <= 3000000) {
985 div_value = ftdi_232bm_baud_to_divisor(baud);
986 } else {
987 dbg("%s - Baud rate too high!", __func__);
988 div_value = ftdi_232bm_baud_to_divisor(9600);
989 div_okay = 0;
990 baud = 9600;
991 }
992 break;
993 } /* priv->chip_type */
994
995 if (div_okay) {
996 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
997 __func__, baud, (unsigned long)div_value,
998 ftdi_chip_name[priv->chip_type]);
999 }
1000
1001 tty_encode_baud_rate(tty, baud, baud);
1002 return div_value;
1003 }
1004
1005 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1006 {
1007 struct ftdi_private *priv = usb_get_serial_port_data(port);
1008 char *buf;
1009 __u16 urb_value;
1010 __u16 urb_index;
1011 __u32 urb_index_value;
1012 int rv;
1013
1014 buf = kmalloc(1, GFP_NOIO);
1015 if (!buf)
1016 return -ENOMEM;
1017
1018 urb_index_value = get_ftdi_divisor(tty, port);
1019 urb_value = (__u16)urb_index_value;
1020 urb_index = (__u16)(urb_index_value >> 16);
1021 if (priv->interface) { /* FT2232C */
1022 urb_index = (__u16)((urb_index << 8) | priv->interface);
1023 }
1024
1025 rv = usb_control_msg(port->serial->dev,
1026 usb_sndctrlpipe(port->serial->dev, 0),
1027 FTDI_SIO_SET_BAUDRATE_REQUEST,
1028 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1029 urb_value, urb_index,
1030 buf, 0, WDR_SHORT_TIMEOUT);
1031
1032 kfree(buf);
1033 return rv;
1034 }
1035
1036
1037
1038 static int get_serial_info(struct usb_serial_port *port,
1039 struct serial_struct __user *retinfo)
1040 {
1041 struct ftdi_private *priv = usb_get_serial_port_data(port);
1042 struct serial_struct tmp;
1043
1044 if (!retinfo)
1045 return -EFAULT;
1046 memset(&tmp, 0, sizeof(tmp));
1047 tmp.flags = priv->flags;
1048 tmp.baud_base = priv->baud_base;
1049 tmp.custom_divisor = priv->custom_divisor;
1050 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1051 return -EFAULT;
1052 return 0;
1053 } /* get_serial_info */
1054
1055
1056 static int set_serial_info(struct tty_struct *tty,
1057 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1058 { /* set_serial_info */
1059 struct ftdi_private *priv = usb_get_serial_port_data(port);
1060 struct serial_struct new_serial;
1061 struct ftdi_private old_priv;
1062
1063 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1064 return -EFAULT;
1065
1066 lock_kernel();
1067 old_priv = *priv;
1068
1069 /* Do error checking and permission checking */
1070
1071 if (!capable(CAP_SYS_ADMIN)) {
1072 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1073 (priv->flags & ~ASYNC_USR_MASK))) {
1074 unlock_kernel();
1075 return -EPERM;
1076 }
1077 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1078 (new_serial.flags & ASYNC_USR_MASK));
1079 priv->custom_divisor = new_serial.custom_divisor;
1080 goto check_and_exit;
1081 }
1082
1083 if ((new_serial.baud_base != priv->baud_base) &&
1084 (new_serial.baud_base < 9600)) {
1085 unlock_kernel();
1086 return -EINVAL;
1087 }
1088
1089 /* Make the changes - these are privileged changes! */
1090
1091 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1092 (new_serial.flags & ASYNC_FLAGS));
1093 priv->custom_divisor = new_serial.custom_divisor;
1094
1095 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1096
1097 check_and_exit:
1098 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1099 (priv->flags & ASYNC_SPD_MASK)) {
1100 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1101 tty->alt_speed = 57600;
1102 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1103 tty->alt_speed = 115200;
1104 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1105 tty->alt_speed = 230400;
1106 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1107 tty->alt_speed = 460800;
1108 else
1109 tty->alt_speed = 0;
1110 }
1111 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1112 (priv->flags & ASYNC_SPD_MASK)) ||
1113 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1114 (old_priv.custom_divisor != priv->custom_divisor))) {
1115 unlock_kernel();
1116 change_speed(tty, port);
1117 }
1118 else
1119 unlock_kernel();
1120 return 0;
1121
1122 } /* set_serial_info */
1123
1124
1125 /* Determine type of FTDI chip based on USB config and descriptor. */
1126 static void ftdi_determine_type(struct usb_serial_port *port)
1127 {
1128 struct ftdi_private *priv = usb_get_serial_port_data(port);
1129 struct usb_serial *serial = port->serial;
1130 struct usb_device *udev = serial->dev;
1131 unsigned version;
1132 unsigned interfaces;
1133
1134 /* Assume it is not the original SIO device for now. */
1135 priv->baud_base = 48000000 / 2;
1136 priv->write_offset = 0;
1137
1138 version = le16_to_cpu(udev->descriptor.bcdDevice);
1139 interfaces = udev->actconfig->desc.bNumInterfaces;
1140 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1141 version, interfaces);
1142 if (interfaces > 1) {
1143 int inter;
1144
1145 /* Multiple interfaces. Assume FT2232C. */
1146 priv->chip_type = FT2232C;
1147 /* Determine interface code. */
1148 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1149 if (inter == 0)
1150 priv->interface = PIT_SIOA;
1151 else
1152 priv->interface = PIT_SIOB;
1153 /* BM-type devices have a bug where bcdDevice gets set
1154 * to 0x200 when iSerialNumber is 0. */
1155 if (version < 0x500) {
1156 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1157 __func__);
1158 }
1159 } else if (version < 0x200) {
1160 /* Old device. Assume its the original SIO. */
1161 priv->chip_type = SIO;
1162 priv->baud_base = 12000000 / 16;
1163 priv->write_offset = 1;
1164 } else if (version < 0x400) {
1165 /* Assume its an FT8U232AM (or FT8U245AM) */
1166 /* (It might be a BM because of the iSerialNumber bug,
1167 * but it will still work as an AM device.) */
1168 priv->chip_type = FT8U232AM;
1169 } else if (version < 0x600) {
1170 /* Assume its an FT232BM (or FT245BM) */
1171 priv->chip_type = FT232BM;
1172 } else {
1173 /* Assume its an FT232R */
1174 priv->chip_type = FT232RL;
1175 }
1176 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1177 }
1178
1179
1180 /*
1181 * ***************************************************************************
1182 * Sysfs Attribute
1183 * ***************************************************************************
1184 */
1185
1186 static ssize_t show_latency_timer(struct device *dev,
1187 struct device_attribute *attr, char *buf)
1188 {
1189 struct usb_serial_port *port = to_usb_serial_port(dev);
1190 struct ftdi_private *priv = usb_get_serial_port_data(port);
1191 struct usb_device *udev = port->serial->dev;
1192 unsigned short latency = 0;
1193 int rv = 0;
1194
1195
1196 dbg("%s", __func__);
1197
1198 rv = usb_control_msg(udev,
1199 usb_rcvctrlpipe(udev, 0),
1200 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1201 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1202 0, priv->interface,
1203 (char *) &latency, 1, WDR_TIMEOUT);
1204
1205 if (rv < 0) {
1206 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1207 return -EIO;
1208 }
1209 return sprintf(buf, "%i\n", latency);
1210 }
1211
1212 /* Write a new value of the latency timer, in units of milliseconds. */
1213 static ssize_t store_latency_timer(struct device *dev,
1214 struct device_attribute *attr, const char *valbuf,
1215 size_t count)
1216 {
1217 struct usb_serial_port *port = to_usb_serial_port(dev);
1218 struct ftdi_private *priv = usb_get_serial_port_data(port);
1219 struct usb_device *udev = port->serial->dev;
1220 char buf[1];
1221 int v = simple_strtoul(valbuf, NULL, 10);
1222 int rv = 0;
1223
1224 dbg("%s: setting latency timer = %i", __func__, v);
1225
1226 rv = usb_control_msg(udev,
1227 usb_sndctrlpipe(udev, 0),
1228 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1229 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1230 v, priv->interface,
1231 buf, 0, WDR_TIMEOUT);
1232
1233 if (rv < 0) {
1234 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1235 return -EIO;
1236 }
1237
1238 return count;
1239 }
1240
1241 /* Write an event character directly to the FTDI register. The ASCII
1242 value is in the low 8 bits, with the enable bit in the 9th bit. */
1243 static ssize_t store_event_char(struct device *dev,
1244 struct device_attribute *attr, const char *valbuf, size_t count)
1245 {
1246 struct usb_serial_port *port = to_usb_serial_port(dev);
1247 struct ftdi_private *priv = usb_get_serial_port_data(port);
1248 struct usb_device *udev = port->serial->dev;
1249 char buf[1];
1250 int v = simple_strtoul(valbuf, NULL, 10);
1251 int rv = 0;
1252
1253 dbg("%s: setting event char = %i", __func__, v);
1254
1255 rv = usb_control_msg(udev,
1256 usb_sndctrlpipe(udev, 0),
1257 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1258 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1259 v, priv->interface,
1260 buf, 0, WDR_TIMEOUT);
1261
1262 if (rv < 0) {
1263 dbg("Unable to write event character: %i", rv);
1264 return -EIO;
1265 }
1266
1267 return count;
1268 }
1269
1270 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1271 store_latency_timer);
1272 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1273
1274 static int create_sysfs_attrs(struct usb_serial_port *port)
1275 {
1276 struct ftdi_private *priv = usb_get_serial_port_data(port);
1277 int retval = 0;
1278
1279 dbg("%s", __func__);
1280
1281 /* XXX I've no idea if the original SIO supports the event_char
1282 * sysfs parameter, so I'm playing it safe. */
1283 if (priv->chip_type != SIO) {
1284 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1285 retval = device_create_file(&port->dev, &dev_attr_event_char);
1286 if ((!retval) &&
1287 (priv->chip_type == FT232BM ||
1288 priv->chip_type == FT2232C ||
1289 priv->chip_type == FT232RL)) {
1290 retval = device_create_file(&port->dev,
1291 &dev_attr_latency_timer);
1292 }
1293 }
1294 return retval;
1295 }
1296
1297 static void remove_sysfs_attrs(struct usb_serial_port *port)
1298 {
1299 struct ftdi_private *priv = usb_get_serial_port_data(port);
1300
1301 dbg("%s", __func__);
1302
1303 /* XXX see create_sysfs_attrs */
1304 if (priv->chip_type != SIO) {
1305 device_remove_file(&port->dev, &dev_attr_event_char);
1306 if (priv->chip_type == FT232BM ||
1307 priv->chip_type == FT2232C ||
1308 priv->chip_type == FT232RL) {
1309 device_remove_file(&port->dev, &dev_attr_latency_timer);
1310 }
1311 }
1312
1313 }
1314
1315 /*
1316 * ***************************************************************************
1317 * FTDI driver specific functions
1318 * ***************************************************************************
1319 */
1320
1321 /* Probe function to check for special devices */
1322 static int ftdi_sio_probe(struct usb_serial *serial,
1323 const struct usb_device_id *id)
1324 {
1325 struct ftdi_sio_quirk *quirk =
1326 (struct ftdi_sio_quirk *)id->driver_info;
1327
1328 if (quirk && quirk->probe) {
1329 int ret = quirk->probe(serial);
1330 if (ret != 0)
1331 return ret;
1332 }
1333
1334 usb_set_serial_data(serial, (void *)id->driver_info);
1335
1336 return 0;
1337 }
1338
1339 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1340 {
1341 struct ftdi_private *priv;
1342 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1343
1344
1345 dbg("%s", __func__);
1346
1347 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1348 if (!priv) {
1349 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1350 sizeof(struct ftdi_private));
1351 return -ENOMEM;
1352 }
1353
1354 spin_lock_init(&priv->rx_lock);
1355 spin_lock_init(&priv->tx_lock);
1356 init_waitqueue_head(&priv->delta_msr_wait);
1357 /* This will push the characters through immediately rather
1358 than queue a task to deliver them */
1359 priv->flags = ASYNC_LOW_LATENCY;
1360
1361 if (quirk && quirk->port_probe)
1362 quirk->port_probe(priv);
1363
1364 /* Increase the size of read buffers */
1365 kfree(port->bulk_in_buffer);
1366 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1367 if (!port->bulk_in_buffer) {
1368 kfree(priv);
1369 return -ENOMEM;
1370 }
1371 if (port->read_urb) {
1372 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1373 port->read_urb->transfer_buffer_length = BUFSZ;
1374 }
1375
1376 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1377 priv->port = port;
1378
1379 /* Free port's existing write urb and transfer buffer. */
1380 if (port->write_urb) {
1381 usb_free_urb(port->write_urb);
1382 port->write_urb = NULL;
1383 }
1384 kfree(port->bulk_out_buffer);
1385 port->bulk_out_buffer = NULL;
1386
1387 usb_set_serial_port_data(port, priv);
1388
1389 ftdi_determine_type(port);
1390 create_sysfs_attrs(port);
1391 return 0;
1392 }
1393
1394 /* Setup for the USB-UIRT device, which requires hardwired
1395 * baudrate (38400 gets mapped to 312500) */
1396 /* Called from usbserial:serial_probe */
1397 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1398 {
1399 dbg("%s", __func__);
1400
1401 priv->flags |= ASYNC_SPD_CUST;
1402 priv->custom_divisor = 77;
1403 priv->force_baud = 38400;
1404 } /* ftdi_USB_UIRT_setup */
1405
1406 /* Setup for the HE-TIRA1 device, which requires hardwired
1407 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1408
1409 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1410 {
1411 dbg("%s", __func__);
1412
1413 priv->flags |= ASYNC_SPD_CUST;
1414 priv->custom_divisor = 240;
1415 priv->force_baud = 38400;
1416 priv->force_rtscts = 1;
1417 } /* ftdi_HE_TIRA1_setup */
1418
1419 /*
1420 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1421 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1422 * userspace using openocd.
1423 */
1424 static int ftdi_jtag_probe(struct usb_serial *serial)
1425 {
1426 struct usb_device *udev = serial->dev;
1427 struct usb_interface *interface = serial->interface;
1428
1429 dbg("%s", __func__);
1430
1431 if (interface == udev->actconfig->interface[0]) {
1432 dev_info(&udev->dev,
1433 "Ignoring serial port reserved for JTAG\n");
1434 return -ENODEV;
1435 }
1436
1437 return 0;
1438 }
1439
1440 /*
1441 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1442 * We have to correct it if we want to read from it.
1443 */
1444 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1445 {
1446 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1447 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1448
1449 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1450 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1451 dev_info(&serial->dev->dev,
1452 "Fixing invalid wMaxPacketSize on read pipe\n");
1453 }
1454
1455 return 0;
1456 }
1457
1458 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1459 * it is called when the usb device is disconnected
1460 *
1461 * usbserial:usb_serial_disconnect
1462 * calls __serial_close for each open of the port
1463 * shutdown is called then (ie ftdi_shutdown)
1464 */
1465 static void ftdi_shutdown(struct usb_serial *serial)
1466 {
1467 dbg("%s", __func__);
1468 }
1469
1470 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1471 {
1472 struct ftdi_private *priv = usb_get_serial_port_data(port);
1473
1474 dbg("%s", __func__);
1475
1476 remove_sysfs_attrs(port);
1477
1478 /* all open ports are closed at this point
1479 * (by usbserial.c:__serial_close, which calls ftdi_close)
1480 */
1481
1482 if (priv) {
1483 usb_set_serial_port_data(port, NULL);
1484 kfree(priv);
1485 }
1486
1487 return 0;
1488 }
1489
1490 static int ftdi_open(struct tty_struct *tty,
1491 struct usb_serial_port *port, struct file *filp)
1492 { /* ftdi_open */
1493 struct usb_device *dev = port->serial->dev;
1494 struct ftdi_private *priv = usb_get_serial_port_data(port);
1495 unsigned long flags;
1496
1497 int result = 0;
1498 char buf[1]; /* Needed for the usb_control_msg I think */
1499
1500 dbg("%s", __func__);
1501
1502 spin_lock_irqsave(&priv->tx_lock, flags);
1503 priv->tx_bytes = 0;
1504 spin_unlock_irqrestore(&priv->tx_lock, flags);
1505 spin_lock_irqsave(&priv->rx_lock, flags);
1506 priv->rx_bytes = 0;
1507 spin_unlock_irqrestore(&priv->rx_lock, flags);
1508
1509 if (tty)
1510 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1511
1512 /* No error checking for this (will get errors later anyway) */
1513 /* See ftdi_sio.h for description of what is reset */
1514 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1515 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1516 FTDI_SIO_RESET_SIO,
1517 priv->interface, buf, 0, WDR_TIMEOUT);
1518
1519 /* Termios defaults are set by usb_serial_init. We don't change
1520 port->tty->termios - this would lose speed settings, etc.
1521 This is same behaviour as serial.c/rs_open() - Kuba */
1522
1523 /* ftdi_set_termios will send usb control messages */
1524 if (tty)
1525 ftdi_set_termios(tty, port, tty->termios);
1526
1527 /* FIXME: Flow control might be enabled, so it should be checked -
1528 we have no control of defaults! */
1529 /* Turn on RTS and DTR since we are not flow controlling by default */
1530 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1531
1532 /* Not throttled */
1533 spin_lock_irqsave(&priv->rx_lock, flags);
1534 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1535 spin_unlock_irqrestore(&priv->rx_lock, flags);
1536
1537 /* Start reading from the device */
1538 priv->rx_processed = 0;
1539 usb_fill_bulk_urb(port->read_urb, dev,
1540 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1541 port->read_urb->transfer_buffer,
1542 port->read_urb->transfer_buffer_length,
1543 ftdi_read_bulk_callback, port);
1544 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1545 if (result)
1546 dev_err(&port->dev,
1547 "%s - failed submitting read urb, error %d\n",
1548 __func__, result);
1549
1550
1551 return result;
1552 } /* ftdi_open */
1553
1554
1555
1556 /*
1557 * usbserial:__serial_close only calls ftdi_close if the point is open
1558 *
1559 * This only gets called when it is the last close
1560 *
1561 *
1562 */
1563
1564 static void ftdi_close(struct tty_struct *tty,
1565 struct usb_serial_port *port, struct file *filp)
1566 { /* ftdi_close */
1567 unsigned int c_cflag = tty->termios->c_cflag;
1568 struct ftdi_private *priv = usb_get_serial_port_data(port);
1569 char buf[1];
1570
1571 dbg("%s", __func__);
1572
1573 mutex_lock(&port->serial->disc_mutex);
1574 if (c_cflag & HUPCL && !port->serial->disconnected) {
1575 /* Disable flow control */
1576 if (usb_control_msg(port->serial->dev,
1577 usb_sndctrlpipe(port->serial->dev, 0),
1578 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1579 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1580 0, priv->interface, buf, 0,
1581 WDR_TIMEOUT) < 0) {
1582 dev_err(&port->dev, "error from flowcontrol urb\n");
1583 }
1584
1585 /* drop RTS and DTR */
1586 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1587 } /* Note change no line if hupcl is off */
1588 mutex_unlock(&port->serial->disc_mutex);
1589
1590 /* cancel any scheduled reading */
1591 cancel_delayed_work(&priv->rx_work);
1592 flush_scheduled_work();
1593
1594 /* shutdown our bulk read */
1595 usb_kill_urb(port->read_urb);
1596 } /* ftdi_close */
1597
1598
1599
1600 /* The SIO requires the first byte to have:
1601 * B0 1
1602 * B1 0
1603 * B2..7 length of message excluding byte 0
1604 *
1605 * The new devices do not require this byte
1606 */
1607 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1608 const unsigned char *buf, int count)
1609 { /* ftdi_write */
1610 struct ftdi_private *priv = usb_get_serial_port_data(port);
1611 struct urb *urb;
1612 unsigned char *buffer;
1613 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1614 int status;
1615 int transfer_size;
1616 unsigned long flags;
1617
1618 dbg("%s port %d, %d bytes", __func__, port->number, count);
1619
1620 if (count == 0) {
1621 dbg("write request of 0 bytes");
1622 return 0;
1623 }
1624 spin_lock_irqsave(&priv->tx_lock, flags);
1625 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1626 spin_unlock_irqrestore(&priv->tx_lock, flags);
1627 dbg("%s - write limit hit\n", __func__);
1628 return 0;
1629 }
1630 priv->tx_outstanding_urbs++;
1631 spin_unlock_irqrestore(&priv->tx_lock, flags);
1632
1633 data_offset = priv->write_offset;
1634 dbg("data_offset set to %d", data_offset);
1635
1636 /* Determine total transfer size */
1637 transfer_size = count;
1638 if (data_offset > 0) {
1639 /* Original sio needs control bytes too... */
1640 transfer_size += (data_offset *
1641 ((count + (PKTSZ - 1 - data_offset)) /
1642 (PKTSZ - data_offset)));
1643 }
1644
1645 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1646 if (!buffer) {
1647 dev_err(&port->dev,
1648 "%s ran out of kernel memory for urb ...\n", __func__);
1649 count = -ENOMEM;
1650 goto error_no_buffer;
1651 }
1652
1653 urb = usb_alloc_urb(0, GFP_ATOMIC);
1654 if (!urb) {
1655 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1656 count = -ENOMEM;
1657 goto error_no_urb;
1658 }
1659
1660 /* Copy data */
1661 if (data_offset > 0) {
1662 /* Original sio requires control byte at start of
1663 each packet. */
1664 int user_pktsz = PKTSZ - data_offset;
1665 int todo = count;
1666 unsigned char *first_byte = buffer;
1667 const unsigned char *current_position = buf;
1668
1669 while (todo > 0) {
1670 if (user_pktsz > todo)
1671 user_pktsz = todo;
1672 /* Write the control byte at the front of the packet*/
1673 *first_byte = 1 | ((user_pktsz) << 2);
1674 /* Copy data for packet */
1675 memcpy(first_byte + data_offset,
1676 current_position, user_pktsz);
1677 first_byte += user_pktsz + data_offset;
1678 current_position += user_pktsz;
1679 todo -= user_pktsz;
1680 }
1681 } else {
1682 /* No control byte required. */
1683 /* Copy in the data to send */
1684 memcpy(buffer, buf, count);
1685 }
1686
1687 usb_serial_debug_data(debug, &port->dev, __func__,
1688 transfer_size, buffer);
1689
1690 /* fill the buffer and send it */
1691 usb_fill_bulk_urb(urb, port->serial->dev,
1692 usb_sndbulkpipe(port->serial->dev,
1693 port->bulk_out_endpointAddress),
1694 buffer, transfer_size,
1695 ftdi_write_bulk_callback, port);
1696
1697 status = usb_submit_urb(urb, GFP_ATOMIC);
1698 if (status) {
1699 dev_err(&port->dev,
1700 "%s - failed submitting write urb, error %d\n",
1701 __func__, status);
1702 count = status;
1703 goto error;
1704 } else {
1705 spin_lock_irqsave(&priv->tx_lock, flags);
1706 priv->tx_outstanding_bytes += count;
1707 priv->tx_bytes += count;
1708 spin_unlock_irqrestore(&priv->tx_lock, flags);
1709 }
1710
1711 /* we are done with this urb, so let the host driver
1712 * really free it when it is finished with it */
1713 usb_free_urb(urb);
1714
1715 dbg("%s write returning: %d", __func__, count);
1716 return count;
1717 error:
1718 usb_free_urb(urb);
1719 error_no_urb:
1720 kfree(buffer);
1721 error_no_buffer:
1722 spin_lock_irqsave(&priv->tx_lock, flags);
1723 priv->tx_outstanding_urbs--;
1724 spin_unlock_irqrestore(&priv->tx_lock, flags);
1725 return count;
1726 } /* ftdi_write */
1727
1728
1729 /* This function may get called when the device is closed */
1730
1731 static void ftdi_write_bulk_callback(struct urb *urb)
1732 {
1733 unsigned long flags;
1734 struct usb_serial_port *port = urb->context;
1735 struct ftdi_private *priv;
1736 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1737 unsigned long countback;
1738 int status = urb->status;
1739
1740 /* free up the transfer buffer, as usb_free_urb() does not do this */
1741 kfree(urb->transfer_buffer);
1742
1743 dbg("%s - port %d", __func__, port->number);
1744
1745 if (status) {
1746 dbg("nonzero write bulk status received: %d", status);
1747 return;
1748 }
1749
1750 priv = usb_get_serial_port_data(port);
1751 if (!priv) {
1752 dbg("%s - bad port private data pointer - exiting", __func__);
1753 return;
1754 }
1755 /* account for transferred data */
1756 countback = urb->actual_length;
1757 data_offset = priv->write_offset;
1758 if (data_offset > 0) {
1759 /* Subtract the control bytes */
1760 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
1761 }
1762 spin_lock_irqsave(&priv->tx_lock, flags);
1763 --priv->tx_outstanding_urbs;
1764 priv->tx_outstanding_bytes -= countback;
1765 spin_unlock_irqrestore(&priv->tx_lock, flags);
1766
1767 usb_serial_port_softint(port);
1768 } /* ftdi_write_bulk_callback */
1769
1770
1771 static int ftdi_write_room(struct tty_struct *tty)
1772 {
1773 struct usb_serial_port *port = tty->driver_data;
1774 struct ftdi_private *priv = usb_get_serial_port_data(port);
1775 int room;
1776 unsigned long flags;
1777
1778 dbg("%s - port %d", __func__, port->number);
1779
1780 spin_lock_irqsave(&priv->tx_lock, flags);
1781 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1782 /*
1783 * We really can take anything the user throws at us
1784 * but let's pick a nice big number to tell the tty
1785 * layer that we have lots of free space
1786 */
1787 room = 2048;
1788 } else {
1789 room = 0;
1790 }
1791 spin_unlock_irqrestore(&priv->tx_lock, flags);
1792 return room;
1793 }
1794
1795 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1796 {
1797 struct usb_serial_port *port = tty->driver_data;
1798 struct ftdi_private *priv = usb_get_serial_port_data(port);
1799 int buffered;
1800 unsigned long flags;
1801
1802 dbg("%s - port %d", __func__, port->number);
1803
1804 spin_lock_irqsave(&priv->tx_lock, flags);
1805 buffered = (int)priv->tx_outstanding_bytes;
1806 spin_unlock_irqrestore(&priv->tx_lock, flags);
1807 if (buffered < 0) {
1808 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1809 __func__);
1810 buffered = 0;
1811 }
1812 return buffered;
1813 }
1814
1815 static void ftdi_read_bulk_callback(struct urb *urb)
1816 {
1817 struct usb_serial_port *port = urb->context;
1818 struct tty_struct *tty;
1819 struct ftdi_private *priv;
1820 unsigned long countread;
1821 unsigned long flags;
1822 int status = urb->status;
1823
1824 if (urb->number_of_packets > 0) {
1825 dev_err(&port->dev, "%s transfer_buffer_length %d "
1826 "actual_length %d number of packets %d\n", __func__,
1827 urb->transfer_buffer_length,
1828 urb->actual_length, urb->number_of_packets);
1829 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1830 urb->transfer_flags);
1831 }
1832
1833 dbg("%s - port %d", __func__, port->number);
1834
1835 if (port->port.count <= 0)
1836 return;
1837
1838 tty = tty_port_tty_get(&port->port);
1839 if (!tty) {
1840 dbg("%s - bad tty pointer - exiting", __func__);
1841 return;
1842 }
1843
1844 priv = usb_get_serial_port_data(port);
1845 if (!priv) {
1846 dbg("%s - bad port private data pointer - exiting", __func__);
1847 goto out;
1848 }
1849
1850 if (urb != port->read_urb)
1851 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1852
1853 if (status) {
1854 /* This will happen at close every time so it is a dbg not an
1855 err */
1856 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
1857 goto out;
1858 }
1859
1860 /* count data bytes, but not status bytes */
1861 countread = urb->actual_length;
1862 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
1863 spin_lock_irqsave(&priv->rx_lock, flags);
1864 priv->rx_bytes += countread;
1865 spin_unlock_irqrestore(&priv->rx_lock, flags);
1866
1867 ftdi_process_read(&priv->rx_work.work);
1868 out:
1869 tty_kref_put(tty);
1870 } /* ftdi_read_bulk_callback */
1871
1872
1873 static void ftdi_process_read(struct work_struct *work)
1874 { /* ftdi_process_read */
1875 struct ftdi_private *priv =
1876 container_of(work, struct ftdi_private, rx_work.work);
1877 struct usb_serial_port *port = priv->port;
1878 struct urb *urb;
1879 struct tty_struct *tty;
1880 char error_flag;
1881 unsigned char *data;
1882
1883 int i;
1884 int result;
1885 int need_flip;
1886 int packet_offset;
1887 unsigned long flags;
1888
1889 dbg("%s - port %d", __func__, port->number);
1890
1891 if (port->port.count <= 0)
1892 return;
1893
1894 tty = tty_port_tty_get(&port->port);
1895 if (!tty) {
1896 dbg("%s - bad tty pointer - exiting", __func__);
1897 return;
1898 }
1899
1900 priv = usb_get_serial_port_data(port);
1901 if (!priv) {
1902 dbg("%s - bad port private data pointer - exiting", __func__);
1903 goto out;
1904 }
1905
1906 urb = port->read_urb;
1907 if (!urb) {
1908 dbg("%s - bad read_urb pointer - exiting", __func__);
1909 goto out;
1910 }
1911
1912 data = urb->transfer_buffer;
1913
1914 if (priv->rx_processed) {
1915 dbg("%s - already processed: %d bytes, %d remain", __func__,
1916 priv->rx_processed,
1917 urb->actual_length - priv->rx_processed);
1918 } else {
1919 /* The first two bytes of every read packet are status */
1920 if (urb->actual_length > 2)
1921 usb_serial_debug_data(debug, &port->dev, __func__,
1922 urb->actual_length, data);
1923 else
1924 dbg("Status only: %03oo %03oo", data[0], data[1]);
1925 }
1926
1927
1928 /* TO DO -- check for hung up line and handle appropriately: */
1929 /* send hangup */
1930 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1931 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1932
1933 need_flip = 0;
1934 for (packet_offset = priv->rx_processed;
1935 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1936 int length;
1937
1938 /* Compare new line status to the old one, signal if different/
1939 N.B. packet may be processed more than once, but differences
1940 are only processed once. */
1941 char new_status = data[packet_offset + 0] &
1942 FTDI_STATUS_B0_MASK;
1943 if (new_status != priv->prev_status) {
1944 priv->diff_status |=
1945 new_status ^ priv->prev_status;
1946 wake_up_interruptible(&priv->delta_msr_wait);
1947 priv->prev_status = new_status;
1948 }
1949
1950 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1951 if (length < 0) {
1952 dev_err(&port->dev, "%s - bad packet length: %d\n",
1953 __func__, length+2);
1954 length = 0;
1955 }
1956
1957 if (priv->rx_flags & THROTTLED) {
1958 dbg("%s - throttled", __func__);
1959 break;
1960 }
1961 if (tty_buffer_request_room(tty, length) < length) {
1962 /* break out & wait for throttling/unthrottling to
1963 happen */
1964 dbg("%s - receive room low", __func__);
1965 break;
1966 }
1967
1968 /* Handle errors and break */
1969 error_flag = TTY_NORMAL;
1970 /* Although the device uses a bitmask and hence can have
1971 multiple errors on a packet - the order here sets the
1972 priority the error is returned to the tty layer */
1973
1974 if (data[packet_offset+1] & FTDI_RS_OE) {
1975 error_flag = TTY_OVERRUN;
1976 dbg("OVERRRUN error");
1977 }
1978 if (data[packet_offset+1] & FTDI_RS_BI) {
1979 error_flag = TTY_BREAK;
1980 dbg("BREAK received");
1981 }
1982 if (data[packet_offset+1] & FTDI_RS_PE) {
1983 error_flag = TTY_PARITY;
1984 dbg("PARITY error");
1985 }
1986 if (data[packet_offset+1] & FTDI_RS_FE) {
1987 error_flag = TTY_FRAME;
1988 dbg("FRAMING error");
1989 }
1990 if (length > 0) {
1991 for (i = 2; i < length+2; i++) {
1992 /* Note that the error flag is duplicated for
1993 every character received since we don't know
1994 which character it applied to */
1995 tty_insert_flip_char(tty,
1996 data[packet_offset + i], error_flag);
1997 }
1998 need_flip = 1;
1999 }
2000
2001 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2002 /* if a parity error is detected you get status packets forever
2003 until a character is sent without a parity error.
2004 This doesn't work well since the application receives a
2005 never ending stream of bad data - even though new data
2006 hasn't been sent. Therefore I (bill) have taken this out.
2007 However - this might make sense for framing errors and so on
2008 so I am leaving the code in for now.
2009 */
2010 else {
2011 if (error_flag != TTY_NORMAL) {
2012 dbg("error_flag is not normal");
2013 /* In this case it is just status - if that is
2014 an error send a bad character */
2015 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
2016 tty_flip_buffer_push(tty);
2017 tty_insert_flip_char(tty, 0xff, error_flag);
2018 need_flip = 1;
2019 }
2020 }
2021 #endif
2022 } /* "for(packet_offset=0..." */
2023
2024 /* Low latency */
2025 if (need_flip)
2026 tty_flip_buffer_push(tty);
2027
2028 if (packet_offset < urb->actual_length) {
2029 /* not completely processed - record progress */
2030 priv->rx_processed = packet_offset;
2031 dbg("%s - incomplete, %d bytes processed, %d remain",
2032 __func__, packet_offset,
2033 urb->actual_length - packet_offset);
2034 /* check if we were throttled while processing */
2035 spin_lock_irqsave(&priv->rx_lock, flags);
2036 if (priv->rx_flags & THROTTLED) {
2037 priv->rx_flags |= ACTUALLY_THROTTLED;
2038 spin_unlock_irqrestore(&priv->rx_lock, flags);
2039 dbg("%s - deferring remainder until unthrottled",
2040 __func__);
2041 goto out;
2042 }
2043 spin_unlock_irqrestore(&priv->rx_lock, flags);
2044 /* if the port is closed stop trying to read */
2045 if (port->port.count > 0)
2046 /* delay processing of remainder */
2047 schedule_delayed_work(&priv->rx_work, 1);
2048 else
2049 dbg("%s - port is closed", __func__);
2050 goto out;
2051 }
2052
2053 /* urb is completely processed */
2054 priv->rx_processed = 0;
2055
2056 /* if the port is closed stop trying to read */
2057 if (port->port.count > 0) {
2058 /* Continue trying to always read */
2059 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
2060 usb_rcvbulkpipe(port->serial->dev,
2061 port->bulk_in_endpointAddress),
2062 port->read_urb->transfer_buffer,
2063 port->read_urb->transfer_buffer_length,
2064 ftdi_read_bulk_callback, port);
2065
2066 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2067 if (result)
2068 dev_err(&port->dev,
2069 "%s - failed resubmitting read urb, error %d\n",
2070 __func__, result);
2071 }
2072 out:
2073 tty_kref_put(tty);
2074 } /* ftdi_process_read */
2075
2076
2077 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2078 {
2079 struct usb_serial_port *port = tty->driver_data;
2080 struct ftdi_private *priv = usb_get_serial_port_data(port);
2081 __u16 urb_value = 0;
2082 char buf[1];
2083
2084 /* break_state = -1 to turn on break, and 0 to turn off break */
2085 /* see drivers/char/tty_io.c to see it used */
2086 /* last_set_data_urb_value NEVER has the break bit set in it */
2087
2088 if (break_state)
2089 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2090 else
2091 urb_value = priv->last_set_data_urb_value;
2092
2093 if (usb_control_msg(port->serial->dev,
2094 usb_sndctrlpipe(port->serial->dev, 0),
2095 FTDI_SIO_SET_DATA_REQUEST,
2096 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2097 urb_value , priv->interface,
2098 buf, 0, WDR_TIMEOUT) < 0) {
2099 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2100 "(state was %d)\n", __func__, break_state);
2101 }
2102
2103 dbg("%s break state is %d - urb is %d", __func__,
2104 break_state, urb_value);
2105
2106 }
2107
2108
2109 /* old_termios contains the original termios settings and tty->termios contains
2110 * the new setting to be used
2111 * WARNING: set_termios calls this with old_termios in kernel space
2112 */
2113
2114 static void ftdi_set_termios(struct tty_struct *tty,
2115 struct usb_serial_port *port, struct ktermios *old_termios)
2116 { /* ftdi_termios */
2117 struct usb_device *dev = port->serial->dev;
2118 struct ftdi_private *priv = usb_get_serial_port_data(port);
2119 struct ktermios *termios = tty->termios;
2120 unsigned int cflag = termios->c_cflag;
2121 __u16 urb_value; /* will hold the new flags */
2122 char buf[1]; /* Perhaps I should dynamically alloc this? */
2123
2124 /* Added for xon/xoff support */
2125 unsigned int iflag = termios->c_iflag;
2126 unsigned char vstop;
2127 unsigned char vstart;
2128
2129 dbg("%s", __func__);
2130
2131 /* Force baud rate if this device requires it, unless it is set to
2132 B0. */
2133 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2134 dbg("%s: forcing baud rate for this device", __func__);
2135 tty_encode_baud_rate(tty, priv->force_baud,
2136 priv->force_baud);
2137 }
2138
2139 /* Force RTS-CTS if this device requires it. */
2140 if (priv->force_rtscts) {
2141 dbg("%s: forcing rtscts for this device", __func__);
2142 termios->c_cflag |= CRTSCTS;
2143 }
2144
2145 cflag = termios->c_cflag;
2146
2147 /* FIXME -For this cut I don't care if the line is really changing or
2148 not - so just do the change regardless - should be able to
2149 compare old_termios and tty->termios */
2150 /* NOTE These routines can get interrupted by
2151 ftdi_sio_read_bulk_callback - need to examine what this means -
2152 don't see any problems yet */
2153
2154 /* Set number of data bits, parity, stop bits */
2155
2156 termios->c_cflag &= ~CMSPAR;
2157
2158 urb_value = 0;
2159 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2160 FTDI_SIO_SET_DATA_STOP_BITS_1);
2161 urb_value |= (cflag & PARENB ?
2162 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2163 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2164 FTDI_SIO_SET_DATA_PARITY_NONE);
2165 if (cflag & CSIZE) {
2166 switch (cflag & CSIZE) {
2167 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2168 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2169 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2170 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2171 default:
2172 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
2173 }
2174 }
2175
2176 /* This is needed by the break command since it uses the same command
2177 - but is or'ed with this value */
2178 priv->last_set_data_urb_value = urb_value;
2179
2180 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2181 FTDI_SIO_SET_DATA_REQUEST,
2182 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2183 urb_value , priv->interface,
2184 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
2185 dev_err(&port->dev, "%s FAILED to set "
2186 "databits/stopbits/parity\n", __func__);
2187 }
2188
2189 /* Now do the baudrate */
2190 if ((cflag & CBAUD) == B0) {
2191 /* Disable flow control */
2192 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2193 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2194 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2195 0, priv->interface,
2196 buf, 0, WDR_TIMEOUT) < 0) {
2197 dev_err(&port->dev,
2198 "%s error from disable flowcontrol urb\n",
2199 __func__);
2200 }
2201 /* Drop RTS and DTR */
2202 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2203 } else {
2204 /* set the baudrate determined before */
2205 if (change_speed(tty, port))
2206 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2207 __func__);
2208 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2209 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2210 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2211 }
2212
2213 /* Set flow control */
2214 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2215 if (cflag & CRTSCTS) {
2216 dbg("%s Setting to CRTSCTS flow control", __func__);
2217 if (usb_control_msg(dev,
2218 usb_sndctrlpipe(dev, 0),
2219 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2220 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2221 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2222 buf, 0, WDR_TIMEOUT) < 0) {
2223 dev_err(&port->dev,
2224 "urb failed to set to rts/cts flow control\n");
2225 }
2226
2227 } else {
2228 /*
2229 * Xon/Xoff code
2230 *
2231 * Check the IXOFF status in the iflag component of the
2232 * termios structure. If IXOFF is not set, the pre-xon/xoff
2233 * code is executed.
2234 */
2235 if (iflag & IXOFF) {
2236 dbg("%s request to enable xonxoff iflag=%04x",
2237 __func__, iflag);
2238 /* Try to enable the XON/XOFF on the ftdi_sio
2239 * Set the vstart and vstop -- could have been done up
2240 * above where a lot of other dereferencing is done but
2241 * that would be very inefficient as vstart and vstop
2242 * are not always needed.
2243 */
2244 vstart = termios->c_cc[VSTART];
2245 vstop = termios->c_cc[VSTOP];
2246 urb_value = (vstop << 8) | (vstart);
2247
2248 if (usb_control_msg(dev,
2249 usb_sndctrlpipe(dev, 0),
2250 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2251 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2252 urb_value , (FTDI_SIO_XON_XOFF_HS
2253 | priv->interface),
2254 buf, 0, WDR_TIMEOUT) < 0) {
2255 dev_err(&port->dev, "urb failed to set to "
2256 "xon/xoff flow control\n");
2257 }
2258 } else {
2259 /* else clause to only run if cflag ! CRTSCTS and iflag
2260 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2261 * stack - not by device */
2262 dbg("%s Turning off hardware flow control", __func__);
2263 if (usb_control_msg(dev,
2264 usb_sndctrlpipe(dev, 0),
2265 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2266 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2267 0, priv->interface,
2268 buf, 0, WDR_TIMEOUT) < 0) {
2269 dev_err(&port->dev,
2270 "urb failed to clear flow control\n");
2271 }
2272 }
2273
2274 }
2275 return;
2276 }
2277
2278 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2279 {
2280 struct usb_serial_port *port = tty->driver_data;
2281 struct ftdi_private *priv = usb_get_serial_port_data(port);
2282 unsigned char buf[2];
2283 int ret;
2284
2285 dbg("%s TIOCMGET", __func__);
2286 switch (priv->chip_type) {
2287 case SIO:
2288 /* Request the status from the device */
2289 ret = usb_control_msg(port->serial->dev,
2290 usb_rcvctrlpipe(port->serial->dev, 0),
2291 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2292 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2293 0, 0,
2294 buf, 1, WDR_TIMEOUT);
2295 if (ret < 0)
2296 return ret;
2297 break;
2298 case FT8U232AM:
2299 case FT232BM:
2300 case FT2232C:
2301 case FT232RL:
2302 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2303 value) - in the same format as the data returned from the in
2304 point */
2305 ret = usb_control_msg(port->serial->dev,
2306 usb_rcvctrlpipe(port->serial->dev, 0),
2307 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2308 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2309 0, priv->interface,
2310 buf, 2, WDR_TIMEOUT);
2311 if (ret < 0)
2312 return ret;
2313 break;
2314 default:
2315 return -EFAULT;
2316 }
2317
2318 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2319 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2320 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2321 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2322 priv->last_dtr_rts;
2323 }
2324
2325 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2326 unsigned int set, unsigned int clear)
2327 {
2328 struct usb_serial_port *port = tty->driver_data;
2329 dbg("%s TIOCMSET", __func__);
2330 return update_mctrl(port, set, clear);
2331 }
2332
2333
2334 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2335 unsigned int cmd, unsigned long arg)
2336 {
2337 struct usb_serial_port *port = tty->driver_data;
2338 struct ftdi_private *priv = usb_get_serial_port_data(port);
2339
2340 dbg("%s cmd 0x%04x", __func__, cmd);
2341
2342 /* Based on code from acm.c and others */
2343 switch (cmd) {
2344
2345 case TIOCGSERIAL: /* gets serial port data */
2346 return get_serial_info(port,
2347 (struct serial_struct __user *) arg);
2348
2349 case TIOCSSERIAL: /* sets serial port data */
2350 return set_serial_info(tty, port,
2351 (struct serial_struct __user *) arg);
2352
2353 /*
2354 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2355 * - mask passed in arg for lines of interest
2356 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2357 * Caller should use TIOCGICOUNT to see which one it was.
2358 *
2359 * This code is borrowed from linux/drivers/char/serial.c
2360 */
2361 case TIOCMIWAIT:
2362 while (priv != NULL) {
2363 interruptible_sleep_on(&priv->delta_msr_wait);
2364 /* see if a signal did it */
2365 if (signal_pending(current))
2366 return -ERESTARTSYS;
2367 else {
2368 char diff = priv->diff_status;
2369
2370 if (diff == 0)
2371 return -EIO; /* no change => error */
2372
2373 /* Consume all events */
2374 priv->diff_status = 0;
2375
2376 /* Return 0 if caller wanted to know about
2377 these bits */
2378 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2379 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2380 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2381 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2382 return 0;
2383 }
2384 /*
2385 * Otherwise caller can't care less about what
2386 * happened,and so we continue to wait for more
2387 * events.
2388 */
2389 }
2390 }
2391 return 0;
2392 default:
2393 break;
2394 }
2395 /* This is not necessarily an error - turns out the higher layers
2396 * will do some ioctls themselves (see comment above)
2397 */
2398 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2399 return -ENOIOCTLCMD;
2400 }
2401
2402 static void ftdi_throttle(struct tty_struct *tty)
2403 {
2404 struct usb_serial_port *port = tty->driver_data;
2405 struct ftdi_private *priv = usb_get_serial_port_data(port);
2406 unsigned long flags;
2407
2408 dbg("%s - port %d", __func__, port->number);
2409
2410 spin_lock_irqsave(&priv->rx_lock, flags);
2411 priv->rx_flags |= THROTTLED;
2412 spin_unlock_irqrestore(&priv->rx_lock, flags);
2413 }
2414
2415
2416 static void ftdi_unthrottle(struct tty_struct *tty)
2417 {
2418 struct usb_serial_port *port = tty->driver_data;
2419 struct ftdi_private *priv = usb_get_serial_port_data(port);
2420 int actually_throttled;
2421 unsigned long flags;
2422
2423 dbg("%s - port %d", __func__, port->number);
2424
2425 spin_lock_irqsave(&priv->rx_lock, flags);
2426 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2427 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2428 spin_unlock_irqrestore(&priv->rx_lock, flags);
2429
2430 if (actually_throttled)
2431 schedule_delayed_work(&priv->rx_work, 0);
2432 }
2433
2434 static int __init ftdi_init(void)
2435 {
2436 int retval;
2437
2438 dbg("%s", __func__);
2439 if (vendor > 0 && product > 0) {
2440 /* Add user specified VID/PID to reserved element of table. */
2441 int i;
2442 for (i = 0; id_table_combined[i].idVendor; i++)
2443 ;
2444 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2445 id_table_combined[i].idVendor = vendor;
2446 id_table_combined[i].idProduct = product;
2447 }
2448 retval = usb_serial_register(&ftdi_sio_device);
2449 if (retval)
2450 goto failed_sio_register;
2451 retval = usb_register(&ftdi_driver);
2452 if (retval)
2453 goto failed_usb_register;
2454
2455 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2456 DRIVER_DESC "\n");
2457 return 0;
2458 failed_usb_register:
2459 usb_serial_deregister(&ftdi_sio_device);
2460 failed_sio_register:
2461 return retval;
2462 }
2463
2464
2465 static void __exit ftdi_exit(void)
2466 {
2467
2468 dbg("%s", __func__);
2469
2470 usb_deregister(&ftdi_driver);
2471 usb_serial_deregister(&ftdi_sio_device);
2472
2473 }
2474
2475
2476 module_init(ftdi_init);
2477 module_exit(ftdi_exit);
2478
2479 MODULE_AUTHOR(DRIVER_AUTHOR);
2480 MODULE_DESCRIPTION(DRIVER_DESC);
2481 MODULE_LICENSE("GPL");
2482
2483 module_param(debug, bool, S_IRUGO | S_IWUSR);
2484 MODULE_PARM_DESC(debug, "Debug enabled or not");
2485 module_param(vendor, ushort, 0);
2486 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2487 __MODULE_STRING(FTDI_VID)")");
2488 module_param(product, ushort, 0);
2489 MODULE_PARM_DESC(product, "User specified product ID");
2490
x86 "subsystem" repository