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sky2: remove unneede workaround
[linux-2.6/mini2440.git] / drivers / usb / serial / ftdi_sio.c
blob75597337583ee4a56766f6c45943ca834d24aba6
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 { }, /* Optional parameter entry */
666 { } /* Terminating entry */
667 };
668
669 MODULE_DEVICE_TABLE(usb, id_table_combined);
670
671 static struct usb_driver ftdi_driver = {
672 .name = "ftdi_sio",
673 .probe = usb_serial_probe,
674 .disconnect = usb_serial_disconnect,
675 .id_table = id_table_combined,
676 .no_dynamic_id = 1,
677 };
678
679 static const char *ftdi_chip_name[] = {
680 [SIO] = "SIO", /* the serial part of FT8U100AX */
681 [FT8U232AM] = "FT8U232AM",
682 [FT232BM] = "FT232BM",
683 [FT2232C] = "FT2232C",
684 [FT232RL] = "FT232RL",
685 };
686
687
688 /* Constants for read urb and write urb */
689 #define BUFSZ 512
690 #define PKTSZ 64
691
692 /* rx_flags */
693 #define THROTTLED 0x01
694 #define ACTUALLY_THROTTLED 0x02
695
696 /* Used for TIOCMIWAIT */
697 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
698 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
699 /* End TIOCMIWAIT */
700
701 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
702 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
703
704 /* function prototypes for a FTDI serial converter */
705 static int ftdi_sio_probe(struct usb_serial *serial,
706 const struct usb_device_id *id);
707 static void ftdi_shutdown(struct usb_serial *serial);
708 static int ftdi_sio_port_probe(struct usb_serial_port *port);
709 static int ftdi_sio_port_remove(struct usb_serial_port *port);
710 static int ftdi_open(struct tty_struct *tty,
711 struct usb_serial_port *port, struct file *filp);
712 static void ftdi_close(struct tty_struct *tty,
713 struct usb_serial_port *port, struct file *filp);
714 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
715 const unsigned char *buf, int count);
716 static int ftdi_write_room(struct tty_struct *tty);
717 static int ftdi_chars_in_buffer(struct tty_struct *tty);
718 static void ftdi_write_bulk_callback(struct urb *urb);
719 static void ftdi_read_bulk_callback(struct urb *urb);
720 static void ftdi_process_read(struct work_struct *work);
721 static void ftdi_set_termios(struct tty_struct *tty,
722 struct usb_serial_port *port, struct ktermios *old);
723 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
724 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
725 unsigned int set, unsigned int clear);
726 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
727 unsigned int cmd, unsigned long arg);
728 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
729 static void ftdi_throttle(struct tty_struct *tty);
730 static void ftdi_unthrottle(struct tty_struct *tty);
731
732 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
733 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
734 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
735 static __u32 ftdi_232bm_baud_to_divisor(int baud);
736
737 static struct usb_serial_driver ftdi_sio_device = {
738 .driver = {
739 .owner = THIS_MODULE,
740 .name = "ftdi_sio",
741 },
742 .description = "FTDI USB Serial Device",
743 .usb_driver = &ftdi_driver ,
744 .id_table = id_table_combined,
745 .num_ports = 1,
746 .probe = ftdi_sio_probe,
747 .port_probe = ftdi_sio_port_probe,
748 .port_remove = ftdi_sio_port_remove,
749 .open = ftdi_open,
750 .close = ftdi_close,
751 .throttle = ftdi_throttle,
752 .unthrottle = ftdi_unthrottle,
753 .write = ftdi_write,
754 .write_room = ftdi_write_room,
755 .chars_in_buffer = ftdi_chars_in_buffer,
756 .read_bulk_callback = ftdi_read_bulk_callback,
757 .write_bulk_callback = ftdi_write_bulk_callback,
758 .tiocmget = ftdi_tiocmget,
759 .tiocmset = ftdi_tiocmset,
760 .ioctl = ftdi_ioctl,
761 .set_termios = ftdi_set_termios,
762 .break_ctl = ftdi_break_ctl,
763 .shutdown = ftdi_shutdown,
764 };
765
766
767 #define WDR_TIMEOUT 5000 /* default urb timeout */
768 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
769
770 /* High and low are for DTR, RTS etc etc */
771 #define HIGH 1
772 #define LOW 0
773
774 /* number of outstanding urbs to prevent userspace DoS from happening */
775 #define URB_UPPER_LIMIT 42
776
777 /*
778 * ***************************************************************************
779 * Utility functions
780 * ***************************************************************************
781 */
782
783 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
784 {
785 unsigned short int divisor;
786 /* divisor shifted 3 bits to the left */
787 int divisor3 = base / 2 / baud;
788 if ((divisor3 & 0x7) == 7)
789 divisor3++; /* round x.7/8 up to x+1 */
790 divisor = divisor3 >> 3;
791 divisor3 &= 0x7;
792 if (divisor3 == 1)
793 divisor |= 0xc000;
794 else if (divisor3 >= 4)
795 divisor |= 0x4000;
796 else if (divisor3 != 0)
797 divisor |= 0x8000;
798 else if (divisor == 1)
799 divisor = 0; /* special case for maximum baud rate */
800 return divisor;
801 }
802
803 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
804 {
805 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
806 }
807
808 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
809 {
810 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
811 __u32 divisor;
812 /* divisor shifted 3 bits to the left */
813 int divisor3 = base / 2 / baud;
814 divisor = divisor3 >> 3;
815 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
816 /* Deal with special cases for highest baud rates. */
817 if (divisor == 1)
818 divisor = 0;
819 else if (divisor == 0x4001)
820 divisor = 1;
821 return divisor;
822 }
823
824 static __u32 ftdi_232bm_baud_to_divisor(int baud)
825 {
826 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
827 }
828
829 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
830 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
831
832 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
833 unsigned int clear)
834 {
835 struct ftdi_private *priv = usb_get_serial_port_data(port);
836 char *buf;
837 unsigned urb_value;
838 int rv;
839
840 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
841 dbg("%s - DTR|RTS not being set|cleared", __func__);
842 return 0; /* no change */
843 }
844
845 buf = kmalloc(1, GFP_NOIO);
846 if (!buf)
847 return -ENOMEM;
848
849 clear &= ~set; /* 'set' takes precedence over 'clear' */
850 urb_value = 0;
851 if (clear & TIOCM_DTR)
852 urb_value |= FTDI_SIO_SET_DTR_LOW;
853 if (clear & TIOCM_RTS)
854 urb_value |= FTDI_SIO_SET_RTS_LOW;
855 if (set & TIOCM_DTR)
856 urb_value |= FTDI_SIO_SET_DTR_HIGH;
857 if (set & TIOCM_RTS)
858 urb_value |= FTDI_SIO_SET_RTS_HIGH;
859 rv = usb_control_msg(port->serial->dev,
860 usb_sndctrlpipe(port->serial->dev, 0),
861 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
862 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
863 urb_value, priv->interface,
864 buf, 0, WDR_TIMEOUT);
865
866 kfree(buf);
867 if (rv < 0) {
868 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
869 __func__,
870 (set & TIOCM_DTR) ? "HIGH" :
871 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
872 (set & TIOCM_RTS) ? "HIGH" :
873 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
874 } else {
875 dbg("%s - DTR %s, RTS %s", __func__,
876 (set & TIOCM_DTR) ? "HIGH" :
877 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
878 (set & TIOCM_RTS) ? "HIGH" :
879 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
880 /* FIXME: locking on last_dtr_rts */
881 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
882 }
883 return rv;
884 }
885
886
887 static __u32 get_ftdi_divisor(struct tty_struct *tty,
888 struct usb_serial_port *port)
889 { /* get_ftdi_divisor */
890 struct ftdi_private *priv = usb_get_serial_port_data(port);
891 __u32 div_value = 0;
892 int div_okay = 1;
893 int baud;
894
895 /*
896 * The logic involved in setting the baudrate can be cleanly split into
897 * 3 steps.
898 * 1. Standard baud rates are set in tty->termios->c_cflag
899 * 2. If these are not enough, you can set any speed using alt_speed as
900 * follows:
901 * - set tty->termios->c_cflag speed to B38400
902 * - set your real speed in tty->alt_speed; it gets ignored when
903 * alt_speed==0, (or)
904 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
905 * follows:
906 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
907 * this just sets alt_speed to (HI: 57600, VHI: 115200,
908 * SHI: 230400, WARP: 460800)
909 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
910 * 3. You can also set baud rate by setting custom divisor as follows
911 * - set tty->termios->c_cflag speed to B38400
912 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
913 * follows:
914 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
915 * o custom_divisor set to baud_base / your_new_baudrate
916 * ** Step 3 is done courtesy of code borrowed from serial.c
917 * I should really spend some time and separate + move this common
918 * code to serial.c, it is replicated in nearly every serial driver
919 * you see.
920 */
921
922 /* 1. Get the baud rate from the tty settings, this observes
923 alt_speed hack */
924
925 baud = tty_get_baud_rate(tty);
926 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
927
928 /* 2. Observe async-compatible custom_divisor hack, update baudrate
929 if needed */
930
931 if (baud == 38400 &&
932 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
933 (priv->custom_divisor)) {
934 baud = priv->baud_base / priv->custom_divisor;
935 dbg("%s - custom divisor %d sets baud rate to %d",
936 __func__, priv->custom_divisor, baud);
937 }
938
939 /* 3. Convert baudrate to device-specific divisor */
940
941 if (!baud)
942 baud = 9600;
943 switch (priv->chip_type) {
944 case SIO: /* SIO chip */
945 switch (baud) {
946 case 300: div_value = ftdi_sio_b300; break;
947 case 600: div_value = ftdi_sio_b600; break;
948 case 1200: div_value = ftdi_sio_b1200; break;
949 case 2400: div_value = ftdi_sio_b2400; break;
950 case 4800: div_value = ftdi_sio_b4800; break;
951 case 9600: div_value = ftdi_sio_b9600; break;
952 case 19200: div_value = ftdi_sio_b19200; break;
953 case 38400: div_value = ftdi_sio_b38400; break;
954 case 57600: div_value = ftdi_sio_b57600; break;
955 case 115200: div_value = ftdi_sio_b115200; break;
956 } /* baud */
957 if (div_value == 0) {
958 dbg("%s - Baudrate (%d) requested is not supported",
959 __func__, baud);
960 div_value = ftdi_sio_b9600;
961 baud = 9600;
962 div_okay = 0;
963 }
964 break;
965 case FT8U232AM: /* 8U232AM chip */
966 if (baud <= 3000000) {
967 div_value = ftdi_232am_baud_to_divisor(baud);
968 } else {
969 dbg("%s - Baud rate too high!", __func__);
970 baud = 9600;
971 div_value = ftdi_232am_baud_to_divisor(9600);
972 div_okay = 0;
973 }
974 break;
975 case FT232BM: /* FT232BM chip */
976 case FT2232C: /* FT2232C chip */
977 case FT232RL:
978 if (baud <= 3000000) {
979 div_value = ftdi_232bm_baud_to_divisor(baud);
980 } else {
981 dbg("%s - Baud rate too high!", __func__);
982 div_value = ftdi_232bm_baud_to_divisor(9600);
983 div_okay = 0;
984 baud = 9600;
985 }
986 break;
987 } /* priv->chip_type */
988
989 if (div_okay) {
990 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
991 __func__, baud, (unsigned long)div_value,
992 ftdi_chip_name[priv->chip_type]);
993 }
994
995 tty_encode_baud_rate(tty, baud, baud);
996 return div_value;
997 }
998
999 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1000 {
1001 struct ftdi_private *priv = usb_get_serial_port_data(port);
1002 char *buf;
1003 __u16 urb_value;
1004 __u16 urb_index;
1005 __u32 urb_index_value;
1006 int rv;
1007
1008 buf = kmalloc(1, GFP_NOIO);
1009 if (!buf)
1010 return -ENOMEM;
1011
1012 urb_index_value = get_ftdi_divisor(tty, port);
1013 urb_value = (__u16)urb_index_value;
1014 urb_index = (__u16)(urb_index_value >> 16);
1015 if (priv->interface) { /* FT2232C */
1016 urb_index = (__u16)((urb_index << 8) | priv->interface);
1017 }
1018
1019 rv = usb_control_msg(port->serial->dev,
1020 usb_sndctrlpipe(port->serial->dev, 0),
1021 FTDI_SIO_SET_BAUDRATE_REQUEST,
1022 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1023 urb_value, urb_index,
1024 buf, 0, WDR_SHORT_TIMEOUT);
1025
1026 kfree(buf);
1027 return rv;
1028 }
1029
1030
1031
1032 static int get_serial_info(struct usb_serial_port *port,
1033 struct serial_struct __user *retinfo)
1034 {
1035 struct ftdi_private *priv = usb_get_serial_port_data(port);
1036 struct serial_struct tmp;
1037
1038 if (!retinfo)
1039 return -EFAULT;
1040 memset(&tmp, 0, sizeof(tmp));
1041 tmp.flags = priv->flags;
1042 tmp.baud_base = priv->baud_base;
1043 tmp.custom_divisor = priv->custom_divisor;
1044 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1045 return -EFAULT;
1046 return 0;
1047 } /* get_serial_info */
1048
1049
1050 static int set_serial_info(struct tty_struct *tty,
1051 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1052 { /* set_serial_info */
1053 struct ftdi_private *priv = usb_get_serial_port_data(port);
1054 struct serial_struct new_serial;
1055 struct ftdi_private old_priv;
1056
1057 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1058 return -EFAULT;
1059
1060 lock_kernel();
1061 old_priv = *priv;
1062
1063 /* Do error checking and permission checking */
1064
1065 if (!capable(CAP_SYS_ADMIN)) {
1066 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1067 (priv->flags & ~ASYNC_USR_MASK)))
1068 return -EPERM;
1069 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1070 (new_serial.flags & ASYNC_USR_MASK));
1071 priv->custom_divisor = new_serial.custom_divisor;
1072 goto check_and_exit;
1073 }
1074
1075 if ((new_serial.baud_base != priv->baud_base) &&
1076 (new_serial.baud_base < 9600)) {
1077 unlock_kernel();
1078 return -EINVAL;
1079 }
1080
1081 /* Make the changes - these are privileged changes! */
1082
1083 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1084 (new_serial.flags & ASYNC_FLAGS));
1085 priv->custom_divisor = new_serial.custom_divisor;
1086
1087 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1088
1089 check_and_exit:
1090 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1091 (priv->flags & ASYNC_SPD_MASK)) {
1092 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1093 tty->alt_speed = 57600;
1094 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1095 tty->alt_speed = 115200;
1096 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1097 tty->alt_speed = 230400;
1098 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1099 tty->alt_speed = 460800;
1100 else
1101 tty->alt_speed = 0;
1102 }
1103 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1104 (priv->flags & ASYNC_SPD_MASK)) ||
1105 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1106 (old_priv.custom_divisor != priv->custom_divisor))) {
1107 unlock_kernel();
1108 change_speed(tty, port);
1109 }
1110 else
1111 unlock_kernel();
1112 return 0;
1113
1114 } /* set_serial_info */
1115
1116
1117 /* Determine type of FTDI chip based on USB config and descriptor. */
1118 static void ftdi_determine_type(struct usb_serial_port *port)
1119 {
1120 struct ftdi_private *priv = usb_get_serial_port_data(port);
1121 struct usb_serial *serial = port->serial;
1122 struct usb_device *udev = serial->dev;
1123 unsigned version;
1124 unsigned interfaces;
1125
1126 /* Assume it is not the original SIO device for now. */
1127 priv->baud_base = 48000000 / 2;
1128 priv->write_offset = 0;
1129
1130 version = le16_to_cpu(udev->descriptor.bcdDevice);
1131 interfaces = udev->actconfig->desc.bNumInterfaces;
1132 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1133 version, interfaces);
1134 if (interfaces > 1) {
1135 int inter;
1136
1137 /* Multiple interfaces. Assume FT2232C. */
1138 priv->chip_type = FT2232C;
1139 /* Determine interface code. */
1140 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1141 if (inter == 0)
1142 priv->interface = PIT_SIOA;
1143 else
1144 priv->interface = PIT_SIOB;
1145 /* BM-type devices have a bug where bcdDevice gets set
1146 * to 0x200 when iSerialNumber is 0. */
1147 if (version < 0x500) {
1148 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1149 __func__);
1150 }
1151 } else if (version < 0x200) {
1152 /* Old device. Assume its the original SIO. */
1153 priv->chip_type = SIO;
1154 priv->baud_base = 12000000 / 16;
1155 priv->write_offset = 1;
1156 } else if (version < 0x400) {
1157 /* Assume its an FT8U232AM (or FT8U245AM) */
1158 /* (It might be a BM because of the iSerialNumber bug,
1159 * but it will still work as an AM device.) */
1160 priv->chip_type = FT8U232AM;
1161 } else if (version < 0x600) {
1162 /* Assume its an FT232BM (or FT245BM) */
1163 priv->chip_type = FT232BM;
1164 } else {
1165 /* Assume its an FT232R */
1166 priv->chip_type = FT232RL;
1167 }
1168 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1169 }
1170
1171
1172 /*
1173 * ***************************************************************************
1174 * Sysfs Attribute
1175 * ***************************************************************************
1176 */
1177
1178 static ssize_t show_latency_timer(struct device *dev,
1179 struct device_attribute *attr, char *buf)
1180 {
1181 struct usb_serial_port *port = to_usb_serial_port(dev);
1182 struct ftdi_private *priv = usb_get_serial_port_data(port);
1183 struct usb_device *udev = port->serial->dev;
1184 unsigned short latency = 0;
1185 int rv = 0;
1186
1187
1188 dbg("%s", __func__);
1189
1190 rv = usb_control_msg(udev,
1191 usb_rcvctrlpipe(udev, 0),
1192 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1193 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1194 0, priv->interface,
1195 (char *) &latency, 1, WDR_TIMEOUT);
1196
1197 if (rv < 0) {
1198 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1199 return -EIO;
1200 }
1201 return sprintf(buf, "%i\n", latency);
1202 }
1203
1204 /* Write a new value of the latency timer, in units of milliseconds. */
1205 static ssize_t store_latency_timer(struct device *dev,
1206 struct device_attribute *attr, const char *valbuf,
1207 size_t count)
1208 {
1209 struct usb_serial_port *port = to_usb_serial_port(dev);
1210 struct ftdi_private *priv = usb_get_serial_port_data(port);
1211 struct usb_device *udev = port->serial->dev;
1212 char buf[1];
1213 int v = simple_strtoul(valbuf, NULL, 10);
1214 int rv = 0;
1215
1216 dbg("%s: setting latency timer = %i", __func__, v);
1217
1218 rv = usb_control_msg(udev,
1219 usb_sndctrlpipe(udev, 0),
1220 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1221 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1222 v, priv->interface,
1223 buf, 0, WDR_TIMEOUT);
1224
1225 if (rv < 0) {
1226 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1227 return -EIO;
1228 }
1229
1230 return count;
1231 }
1232
1233 /* Write an event character directly to the FTDI register. The ASCII
1234 value is in the low 8 bits, with the enable bit in the 9th bit. */
1235 static ssize_t store_event_char(struct device *dev,
1236 struct device_attribute *attr, const char *valbuf, size_t count)
1237 {
1238 struct usb_serial_port *port = to_usb_serial_port(dev);
1239 struct ftdi_private *priv = usb_get_serial_port_data(port);
1240 struct usb_device *udev = port->serial->dev;
1241 char buf[1];
1242 int v = simple_strtoul(valbuf, NULL, 10);
1243 int rv = 0;
1244
1245 dbg("%s: setting event char = %i", __func__, v);
1246
1247 rv = usb_control_msg(udev,
1248 usb_sndctrlpipe(udev, 0),
1249 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1250 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1251 v, priv->interface,
1252 buf, 0, WDR_TIMEOUT);
1253
1254 if (rv < 0) {
1255 dbg("Unable to write event character: %i", rv);
1256 return -EIO;
1257 }
1258
1259 return count;
1260 }
1261
1262 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1263 store_latency_timer);
1264 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1265
1266 static int create_sysfs_attrs(struct usb_serial_port *port)
1267 {
1268 struct ftdi_private *priv = usb_get_serial_port_data(port);
1269 int retval = 0;
1270
1271 dbg("%s", __func__);
1272
1273 /* XXX I've no idea if the original SIO supports the event_char
1274 * sysfs parameter, so I'm playing it safe. */
1275 if (priv->chip_type != SIO) {
1276 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1277 retval = device_create_file(&port->dev, &dev_attr_event_char);
1278 if ((!retval) &&
1279 (priv->chip_type == FT232BM ||
1280 priv->chip_type == FT2232C ||
1281 priv->chip_type == FT232RL)) {
1282 retval = device_create_file(&port->dev,
1283 &dev_attr_latency_timer);
1284 }
1285 }
1286 return retval;
1287 }
1288
1289 static void remove_sysfs_attrs(struct usb_serial_port *port)
1290 {
1291 struct ftdi_private *priv = usb_get_serial_port_data(port);
1292
1293 dbg("%s", __func__);
1294
1295 /* XXX see create_sysfs_attrs */
1296 if (priv->chip_type != SIO) {
1297 device_remove_file(&port->dev, &dev_attr_event_char);
1298 if (priv->chip_type == FT232BM ||
1299 priv->chip_type == FT2232C ||
1300 priv->chip_type == FT232RL) {
1301 device_remove_file(&port->dev, &dev_attr_latency_timer);
1302 }
1303 }
1304
1305 }
1306
1307 /*
1308 * ***************************************************************************
1309 * FTDI driver specific functions
1310 * ***************************************************************************
1311 */
1312
1313 /* Probe function to check for special devices */
1314 static int ftdi_sio_probe(struct usb_serial *serial,
1315 const struct usb_device_id *id)
1316 {
1317 struct ftdi_sio_quirk *quirk =
1318 (struct ftdi_sio_quirk *)id->driver_info;
1319
1320 if (quirk && quirk->probe) {
1321 int ret = quirk->probe(serial);
1322 if (ret != 0)
1323 return ret;
1324 }
1325
1326 usb_set_serial_data(serial, (void *)id->driver_info);
1327
1328 return 0;
1329 }
1330
1331 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1332 {
1333 struct ftdi_private *priv;
1334 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1335
1336
1337 dbg("%s", __func__);
1338
1339 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1340 if (!priv) {
1341 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1342 sizeof(struct ftdi_private));
1343 return -ENOMEM;
1344 }
1345
1346 spin_lock_init(&priv->rx_lock);
1347 spin_lock_init(&priv->tx_lock);
1348 init_waitqueue_head(&priv->delta_msr_wait);
1349 /* This will push the characters through immediately rather
1350 than queue a task to deliver them */
1351 priv->flags = ASYNC_LOW_LATENCY;
1352
1353 if (quirk && quirk->port_probe)
1354 quirk->port_probe(priv);
1355
1356 /* Increase the size of read buffers */
1357 kfree(port->bulk_in_buffer);
1358 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1359 if (!port->bulk_in_buffer) {
1360 kfree(priv);
1361 return -ENOMEM;
1362 }
1363 if (port->read_urb) {
1364 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1365 port->read_urb->transfer_buffer_length = BUFSZ;
1366 }
1367
1368 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1369 priv->port = port;
1370
1371 /* Free port's existing write urb and transfer buffer. */
1372 if (port->write_urb) {
1373 usb_free_urb(port->write_urb);
1374 port->write_urb = NULL;
1375 }
1376 kfree(port->bulk_out_buffer);
1377 port->bulk_out_buffer = NULL;
1378
1379 usb_set_serial_port_data(port, priv);
1380
1381 ftdi_determine_type(port);
1382 create_sysfs_attrs(port);
1383 return 0;
1384 }
1385
1386 /* Setup for the USB-UIRT device, which requires hardwired
1387 * baudrate (38400 gets mapped to 312500) */
1388 /* Called from usbserial:serial_probe */
1389 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1390 {
1391 dbg("%s", __func__);
1392
1393 priv->flags |= ASYNC_SPD_CUST;
1394 priv->custom_divisor = 77;
1395 priv->force_baud = 38400;
1396 } /* ftdi_USB_UIRT_setup */
1397
1398 /* Setup for the HE-TIRA1 device, which requires hardwired
1399 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1400
1401 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1402 {
1403 dbg("%s", __func__);
1404
1405 priv->flags |= ASYNC_SPD_CUST;
1406 priv->custom_divisor = 240;
1407 priv->force_baud = 38400;
1408 priv->force_rtscts = 1;
1409 } /* ftdi_HE_TIRA1_setup */
1410
1411 /*
1412 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1413 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1414 * userspace using openocd.
1415 */
1416 static int ftdi_jtag_probe(struct usb_serial *serial)
1417 {
1418 struct usb_device *udev = serial->dev;
1419 struct usb_interface *interface = serial->interface;
1420
1421 dbg("%s", __func__);
1422
1423 if (interface == udev->actconfig->interface[0]) {
1424 dev_info(&udev->dev,
1425 "Ignoring serial port reserved for JTAG\n");
1426 return -ENODEV;
1427 }
1428
1429 return 0;
1430 }
1431
1432 /*
1433 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1434 * We have to correct it if we want to read from it.
1435 */
1436 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1437 {
1438 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1439 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1440
1441 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1442 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1443 dev_info(&serial->dev->dev,
1444 "Fixing invalid wMaxPacketSize on read pipe\n");
1445 }
1446
1447 return 0;
1448 }
1449
1450 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1451 * it is called when the usb device is disconnected
1452 *
1453 * usbserial:usb_serial_disconnect
1454 * calls __serial_close for each open of the port
1455 * shutdown is called then (ie ftdi_shutdown)
1456 */
1457 static void ftdi_shutdown(struct usb_serial *serial)
1458 {
1459 dbg("%s", __func__);
1460 }
1461
1462 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1463 {
1464 struct ftdi_private *priv = usb_get_serial_port_data(port);
1465
1466 dbg("%s", __func__);
1467
1468 remove_sysfs_attrs(port);
1469
1470 /* all open ports are closed at this point
1471 * (by usbserial.c:__serial_close, which calls ftdi_close)
1472 */
1473
1474 if (priv) {
1475 usb_set_serial_port_data(port, NULL);
1476 kfree(priv);
1477 }
1478
1479 return 0;
1480 }
1481
1482 static int ftdi_open(struct tty_struct *tty,
1483 struct usb_serial_port *port, struct file *filp)
1484 { /* ftdi_open */
1485 struct usb_device *dev = port->serial->dev;
1486 struct ftdi_private *priv = usb_get_serial_port_data(port);
1487 unsigned long flags;
1488
1489 int result = 0;
1490 char buf[1]; /* Needed for the usb_control_msg I think */
1491
1492 dbg("%s", __func__);
1493
1494 spin_lock_irqsave(&priv->tx_lock, flags);
1495 priv->tx_bytes = 0;
1496 spin_unlock_irqrestore(&priv->tx_lock, flags);
1497 spin_lock_irqsave(&priv->rx_lock, flags);
1498 priv->rx_bytes = 0;
1499 spin_unlock_irqrestore(&priv->rx_lock, flags);
1500
1501 if (tty)
1502 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1503
1504 /* No error checking for this (will get errors later anyway) */
1505 /* See ftdi_sio.h for description of what is reset */
1506 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1507 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1508 FTDI_SIO_RESET_SIO,
1509 priv->interface, buf, 0, WDR_TIMEOUT);
1510
1511 /* Termios defaults are set by usb_serial_init. We don't change
1512 port->tty->termios - this would lose speed settings, etc.
1513 This is same behaviour as serial.c/rs_open() - Kuba */
1514
1515 /* ftdi_set_termios will send usb control messages */
1516 if (tty)
1517 ftdi_set_termios(tty, port, tty->termios);
1518
1519 /* FIXME: Flow control might be enabled, so it should be checked -
1520 we have no control of defaults! */
1521 /* Turn on RTS and DTR since we are not flow controlling by default */
1522 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1523
1524 /* Not throttled */
1525 spin_lock_irqsave(&priv->rx_lock, flags);
1526 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1527 spin_unlock_irqrestore(&priv->rx_lock, flags);
1528
1529 /* Start reading from the device */
1530 priv->rx_processed = 0;
1531 usb_fill_bulk_urb(port->read_urb, dev,
1532 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1533 port->read_urb->transfer_buffer,
1534 port->read_urb->transfer_buffer_length,
1535 ftdi_read_bulk_callback, port);
1536 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1537 if (result)
1538 dev_err(&port->dev,
1539 "%s - failed submitting read urb, error %d\n",
1540 __func__, result);
1541
1542
1543 return result;
1544 } /* ftdi_open */
1545
1546
1547
1548 /*
1549 * usbserial:__serial_close only calls ftdi_close if the point is open
1550 *
1551 * This only gets called when it is the last close
1552 *
1553 *
1554 */
1555
1556 static void ftdi_close(struct tty_struct *tty,
1557 struct usb_serial_port *port, struct file *filp)
1558 { /* ftdi_close */
1559 unsigned int c_cflag = tty->termios->c_cflag;
1560 struct ftdi_private *priv = usb_get_serial_port_data(port);
1561 char buf[1];
1562
1563 dbg("%s", __func__);
1564
1565 mutex_lock(&port->serial->disc_mutex);
1566 if (c_cflag & HUPCL && !port->serial->disconnected) {
1567 /* Disable flow control */
1568 if (usb_control_msg(port->serial->dev,
1569 usb_sndctrlpipe(port->serial->dev, 0),
1570 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1571 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1572 0, priv->interface, buf, 0,
1573 WDR_TIMEOUT) < 0) {
1574 dev_err(&port->dev, "error from flowcontrol urb\n");
1575 }
1576
1577 /* drop RTS and DTR */
1578 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1579 } /* Note change no line if hupcl is off */
1580 mutex_unlock(&port->serial->disc_mutex);
1581
1582 /* cancel any scheduled reading */
1583 cancel_delayed_work(&priv->rx_work);
1584 flush_scheduled_work();
1585
1586 /* shutdown our bulk read */
1587 usb_kill_urb(port->read_urb);
1588 } /* ftdi_close */
1589
1590
1591
1592 /* The SIO requires the first byte to have:
1593 * B0 1
1594 * B1 0
1595 * B2..7 length of message excluding byte 0
1596 *
1597 * The new devices do not require this byte
1598 */
1599 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1600 const unsigned char *buf, int count)
1601 { /* ftdi_write */
1602 struct ftdi_private *priv = usb_get_serial_port_data(port);
1603 struct urb *urb;
1604 unsigned char *buffer;
1605 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1606 int status;
1607 int transfer_size;
1608 unsigned long flags;
1609
1610 dbg("%s port %d, %d bytes", __func__, port->number, count);
1611
1612 if (count == 0) {
1613 dbg("write request of 0 bytes");
1614 return 0;
1615 }
1616 spin_lock_irqsave(&priv->tx_lock, flags);
1617 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1618 spin_unlock_irqrestore(&priv->tx_lock, flags);
1619 dbg("%s - write limit hit\n", __func__);
1620 return 0;
1621 }
1622 priv->tx_outstanding_urbs++;
1623 spin_unlock_irqrestore(&priv->tx_lock, flags);
1624
1625 data_offset = priv->write_offset;
1626 dbg("data_offset set to %d", data_offset);
1627
1628 /* Determine total transfer size */
1629 transfer_size = count;
1630 if (data_offset > 0) {
1631 /* Original sio needs control bytes too... */
1632 transfer_size += (data_offset *
1633 ((count + (PKTSZ - 1 - data_offset)) /
1634 (PKTSZ - data_offset)));
1635 }
1636
1637 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1638 if (!buffer) {
1639 dev_err(&port->dev,
1640 "%s ran out of kernel memory for urb ...\n", __func__);
1641 count = -ENOMEM;
1642 goto error_no_buffer;
1643 }
1644
1645 urb = usb_alloc_urb(0, GFP_ATOMIC);
1646 if (!urb) {
1647 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1648 count = -ENOMEM;
1649 goto error_no_urb;
1650 }
1651
1652 /* Copy data */
1653 if (data_offset > 0) {
1654 /* Original sio requires control byte at start of
1655 each packet. */
1656 int user_pktsz = PKTSZ - data_offset;
1657 int todo = count;
1658 unsigned char *first_byte = buffer;
1659 const unsigned char *current_position = buf;
1660
1661 while (todo > 0) {
1662 if (user_pktsz > todo)
1663 user_pktsz = todo;
1664 /* Write the control byte at the front of the packet*/
1665 *first_byte = 1 | ((user_pktsz) << 2);
1666 /* Copy data for packet */
1667 memcpy(first_byte + data_offset,
1668 current_position, user_pktsz);
1669 first_byte += user_pktsz + data_offset;
1670 current_position += user_pktsz;
1671 todo -= user_pktsz;
1672 }
1673 } else {
1674 /* No control byte required. */
1675 /* Copy in the data to send */
1676 memcpy(buffer, buf, count);
1677 }
1678
1679 usb_serial_debug_data(debug, &port->dev, __func__,
1680 transfer_size, buffer);
1681
1682 /* fill the buffer and send it */
1683 usb_fill_bulk_urb(urb, port->serial->dev,
1684 usb_sndbulkpipe(port->serial->dev,
1685 port->bulk_out_endpointAddress),
1686 buffer, transfer_size,
1687 ftdi_write_bulk_callback, port);
1688
1689 status = usb_submit_urb(urb, GFP_ATOMIC);
1690 if (status) {
1691 dev_err(&port->dev,
1692 "%s - failed submitting write urb, error %d\n",
1693 __func__, status);
1694 count = status;
1695 goto error;
1696 } else {
1697 spin_lock_irqsave(&priv->tx_lock, flags);
1698 priv->tx_outstanding_bytes += count;
1699 priv->tx_bytes += count;
1700 spin_unlock_irqrestore(&priv->tx_lock, flags);
1701 }
1702
1703 /* we are done with this urb, so let the host driver
1704 * really free it when it is finished with it */
1705 usb_free_urb(urb);
1706
1707 dbg("%s write returning: %d", __func__, count);
1708 return count;
1709 error:
1710 usb_free_urb(urb);
1711 error_no_urb:
1712 kfree(buffer);
1713 error_no_buffer:
1714 spin_lock_irqsave(&priv->tx_lock, flags);
1715 priv->tx_outstanding_urbs--;
1716 spin_unlock_irqrestore(&priv->tx_lock, flags);
1717 return count;
1718 } /* ftdi_write */
1719
1720
1721 /* This function may get called when the device is closed */
1722
1723 static void ftdi_write_bulk_callback(struct urb *urb)
1724 {
1725 unsigned long flags;
1726 struct usb_serial_port *port = urb->context;
1727 struct ftdi_private *priv;
1728 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1729 unsigned long countback;
1730 int status = urb->status;
1731
1732 /* free up the transfer buffer, as usb_free_urb() does not do this */
1733 kfree(urb->transfer_buffer);
1734
1735 dbg("%s - port %d", __func__, port->number);
1736
1737 if (status) {
1738 dbg("nonzero write bulk status received: %d", status);
1739 return;
1740 }
1741
1742 priv = usb_get_serial_port_data(port);
1743 if (!priv) {
1744 dbg("%s - bad port private data pointer - exiting", __func__);
1745 return;
1746 }
1747 /* account for transferred data */
1748 countback = urb->actual_length;
1749 data_offset = priv->write_offset;
1750 if (data_offset > 0) {
1751 /* Subtract the control bytes */
1752 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
1753 }
1754 spin_lock_irqsave(&priv->tx_lock, flags);
1755 --priv->tx_outstanding_urbs;
1756 priv->tx_outstanding_bytes -= countback;
1757 spin_unlock_irqrestore(&priv->tx_lock, flags);
1758
1759 usb_serial_port_softint(port);
1760 } /* ftdi_write_bulk_callback */
1761
1762
1763 static int ftdi_write_room(struct tty_struct *tty)
1764 {
1765 struct usb_serial_port *port = tty->driver_data;
1766 struct ftdi_private *priv = usb_get_serial_port_data(port);
1767 int room;
1768 unsigned long flags;
1769
1770 dbg("%s - port %d", __func__, port->number);
1771
1772 spin_lock_irqsave(&priv->tx_lock, flags);
1773 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1774 /*
1775 * We really can take anything the user throws at us
1776 * but let's pick a nice big number to tell the tty
1777 * layer that we have lots of free space
1778 */
1779 room = 2048;
1780 } else {
1781 room = 0;
1782 }
1783 spin_unlock_irqrestore(&priv->tx_lock, flags);
1784 return room;
1785 }
1786
1787 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1788 {
1789 struct usb_serial_port *port = tty->driver_data;
1790 struct ftdi_private *priv = usb_get_serial_port_data(port);
1791 int buffered;
1792 unsigned long flags;
1793
1794 dbg("%s - port %d", __func__, port->number);
1795
1796 spin_lock_irqsave(&priv->tx_lock, flags);
1797 buffered = (int)priv->tx_outstanding_bytes;
1798 spin_unlock_irqrestore(&priv->tx_lock, flags);
1799 if (buffered < 0) {
1800 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1801 __func__);
1802 buffered = 0;
1803 }
1804 return buffered;
1805 }
1806
1807 static void ftdi_read_bulk_callback(struct urb *urb)
1808 {
1809 struct usb_serial_port *port = urb->context;
1810 struct tty_struct *tty;
1811 struct ftdi_private *priv;
1812 unsigned long countread;
1813 unsigned long flags;
1814 int status = urb->status;
1815
1816 if (urb->number_of_packets > 0) {
1817 dev_err(&port->dev, "%s transfer_buffer_length %d "
1818 "actual_length %d number of packets %d\n", __func__,
1819 urb->transfer_buffer_length,
1820 urb->actual_length, urb->number_of_packets);
1821 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1822 urb->transfer_flags);
1823 }
1824
1825 dbg("%s - port %d", __func__, port->number);
1826
1827 if (port->port.count <= 0)
1828 return;
1829
1830 tty = tty_port_tty_get(&port->port);
1831 if (!tty) {
1832 dbg("%s - bad tty pointer - exiting", __func__);
1833 return;
1834 }
1835
1836 priv = usb_get_serial_port_data(port);
1837 if (!priv) {
1838 dbg("%s - bad port private data pointer - exiting", __func__);
1839 goto out;
1840 }
1841
1842 if (urb != port->read_urb)
1843 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1844
1845 if (status) {
1846 /* This will happen at close every time so it is a dbg not an
1847 err */
1848 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
1849 goto out;
1850 }
1851
1852 /* count data bytes, but not status bytes */
1853 countread = urb->actual_length;
1854 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
1855 spin_lock_irqsave(&priv->rx_lock, flags);
1856 priv->rx_bytes += countread;
1857 spin_unlock_irqrestore(&priv->rx_lock, flags);
1858
1859 ftdi_process_read(&priv->rx_work.work);
1860 out:
1861 tty_kref_put(tty);
1862 } /* ftdi_read_bulk_callback */
1863
1864
1865 static void ftdi_process_read(struct work_struct *work)
1866 { /* ftdi_process_read */
1867 struct ftdi_private *priv =
1868 container_of(work, struct ftdi_private, rx_work.work);
1869 struct usb_serial_port *port = priv->port;
1870 struct urb *urb;
1871 struct tty_struct *tty;
1872 char error_flag;
1873 unsigned char *data;
1874
1875 int i;
1876 int result;
1877 int need_flip;
1878 int packet_offset;
1879 unsigned long flags;
1880
1881 dbg("%s - port %d", __func__, port->number);
1882
1883 if (port->port.count <= 0)
1884 return;
1885
1886 tty = tty_port_tty_get(&port->port);
1887 if (!tty) {
1888 dbg("%s - bad tty pointer - exiting", __func__);
1889 return;
1890 }
1891
1892 priv = usb_get_serial_port_data(port);
1893 if (!priv) {
1894 dbg("%s - bad port private data pointer - exiting", __func__);
1895 goto out;
1896 }
1897
1898 urb = port->read_urb;
1899 if (!urb) {
1900 dbg("%s - bad read_urb pointer - exiting", __func__);
1901 goto out;
1902 }
1903
1904 data = urb->transfer_buffer;
1905
1906 if (priv->rx_processed) {
1907 dbg("%s - already processed: %d bytes, %d remain", __func__,
1908 priv->rx_processed,
1909 urb->actual_length - priv->rx_processed);
1910 } else {
1911 /* The first two bytes of every read packet are status */
1912 if (urb->actual_length > 2)
1913 usb_serial_debug_data(debug, &port->dev, __func__,
1914 urb->actual_length, data);
1915 else
1916 dbg("Status only: %03oo %03oo", data[0], data[1]);
1917 }
1918
1919
1920 /* TO DO -- check for hung up line and handle appropriately: */
1921 /* send hangup */
1922 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1923 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1924
1925 need_flip = 0;
1926 for (packet_offset = priv->rx_processed;
1927 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1928 int length;
1929
1930 /* Compare new line status to the old one, signal if different/
1931 N.B. packet may be processed more than once, but differences
1932 are only processed once. */
1933 if (priv != NULL) {
1934 char new_status = data[packet_offset + 0] &
1935 FTDI_STATUS_B0_MASK;
1936 if (new_status != priv->prev_status) {
1937 priv->diff_status |=
1938 new_status ^ priv->prev_status;
1939 wake_up_interruptible(&priv->delta_msr_wait);
1940 priv->prev_status = new_status;
1941 }
1942 }
1943
1944 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1945 if (length < 0) {
1946 dev_err(&port->dev, "%s - bad packet length: %d\n",
1947 __func__, length+2);
1948 length = 0;
1949 }
1950
1951 if (priv->rx_flags & THROTTLED) {
1952 dbg("%s - throttled", __func__);
1953 break;
1954 }
1955 if (tty_buffer_request_room(tty, length) < length) {
1956 /* break out & wait for throttling/unthrottling to
1957 happen */
1958 dbg("%s - receive room low", __func__);
1959 break;
1960 }
1961
1962 /* Handle errors and break */
1963 error_flag = TTY_NORMAL;
1964 /* Although the device uses a bitmask and hence can have
1965 multiple errors on a packet - the order here sets the
1966 priority the error is returned to the tty layer */
1967
1968 if (data[packet_offset+1] & FTDI_RS_OE) {
1969 error_flag = TTY_OVERRUN;
1970 dbg("OVERRRUN error");
1971 }
1972 if (data[packet_offset+1] & FTDI_RS_BI) {
1973 error_flag = TTY_BREAK;
1974 dbg("BREAK received");
1975 }
1976 if (data[packet_offset+1] & FTDI_RS_PE) {
1977 error_flag = TTY_PARITY;
1978 dbg("PARITY error");
1979 }
1980 if (data[packet_offset+1] & FTDI_RS_FE) {
1981 error_flag = TTY_FRAME;
1982 dbg("FRAMING error");
1983 }
1984 if (length > 0) {
1985 for (i = 2; i < length+2; i++) {
1986 /* Note that the error flag is duplicated for
1987 every character received since we don't know
1988 which character it applied to */
1989 tty_insert_flip_char(tty,
1990 data[packet_offset + i], error_flag);
1991 }
1992 need_flip = 1;
1993 }
1994
1995 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1996 /* if a parity error is detected you get status packets forever
1997 until a character is sent without a parity error.
1998 This doesn't work well since the application receives a
1999 never ending stream of bad data - even though new data
2000 hasn't been sent. Therefore I (bill) have taken this out.
2001 However - this might make sense for framing errors and so on
2002 so I am leaving the code in for now.
2003 */
2004 else {
2005 if (error_flag != TTY_NORMAL) {
2006 dbg("error_flag is not normal");
2007 /* In this case it is just status - if that is
2008 an error send a bad character */
2009 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
2010 tty_flip_buffer_push(tty);
2011 tty_insert_flip_char(tty, 0xff, error_flag);
2012 need_flip = 1;
2013 }
2014 }
2015 #endif
2016 } /* "for(packet_offset=0..." */
2017
2018 /* Low latency */
2019 if (need_flip)
2020 tty_flip_buffer_push(tty);
2021
2022 if (packet_offset < urb->actual_length) {
2023 /* not completely processed - record progress */
2024 priv->rx_processed = packet_offset;
2025 dbg("%s - incomplete, %d bytes processed, %d remain",
2026 __func__, packet_offset,
2027 urb->actual_length - packet_offset);
2028 /* check if we were throttled while processing */
2029 spin_lock_irqsave(&priv->rx_lock, flags);
2030 if (priv->rx_flags & THROTTLED) {
2031 priv->rx_flags |= ACTUALLY_THROTTLED;
2032 spin_unlock_irqrestore(&priv->rx_lock, flags);
2033 dbg("%s - deferring remainder until unthrottled",
2034 __func__);
2035 goto out;
2036 }
2037 spin_unlock_irqrestore(&priv->rx_lock, flags);
2038 /* if the port is closed stop trying to read */
2039 if (port->port.count > 0)
2040 /* delay processing of remainder */
2041 schedule_delayed_work(&priv->rx_work, 1);
2042 else
2043 dbg("%s - port is closed", __func__);
2044 goto out;
2045 }
2046
2047 /* urb is completely processed */
2048 priv->rx_processed = 0;
2049
2050 /* if the port is closed stop trying to read */
2051 if (port->port.count > 0) {
2052 /* Continue trying to always read */
2053 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
2054 usb_rcvbulkpipe(port->serial->dev,
2055 port->bulk_in_endpointAddress),
2056 port->read_urb->transfer_buffer,
2057 port->read_urb->transfer_buffer_length,
2058 ftdi_read_bulk_callback, port);
2059
2060 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2061 if (result)
2062 dev_err(&port->dev,
2063 "%s - failed resubmitting read urb, error %d\n",
2064 __func__, result);
2065 }
2066 out:
2067 tty_kref_put(tty);
2068 } /* ftdi_process_read */
2069
2070
2071 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2072 {
2073 struct usb_serial_port *port = tty->driver_data;
2074 struct ftdi_private *priv = usb_get_serial_port_data(port);
2075 __u16 urb_value = 0;
2076 char buf[1];
2077
2078 /* break_state = -1 to turn on break, and 0 to turn off break */
2079 /* see drivers/char/tty_io.c to see it used */
2080 /* last_set_data_urb_value NEVER has the break bit set in it */
2081
2082 if (break_state)
2083 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2084 else
2085 urb_value = priv->last_set_data_urb_value;
2086
2087 if (usb_control_msg(port->serial->dev,
2088 usb_sndctrlpipe(port->serial->dev, 0),
2089 FTDI_SIO_SET_DATA_REQUEST,
2090 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2091 urb_value , priv->interface,
2092 buf, 0, WDR_TIMEOUT) < 0) {
2093 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2094 "(state was %d)\n", __func__, break_state);
2095 }
2096
2097 dbg("%s break state is %d - urb is %d", __func__,
2098 break_state, urb_value);
2099
2100 }
2101
2102
2103 /* old_termios contains the original termios settings and tty->termios contains
2104 * the new setting to be used
2105 * WARNING: set_termios calls this with old_termios in kernel space
2106 */
2107
2108 static void ftdi_set_termios(struct tty_struct *tty,
2109 struct usb_serial_port *port, struct ktermios *old_termios)
2110 { /* ftdi_termios */
2111 struct usb_device *dev = port->serial->dev;
2112 struct ftdi_private *priv = usb_get_serial_port_data(port);
2113 struct ktermios *termios = tty->termios;
2114 unsigned int cflag = termios->c_cflag;
2115 __u16 urb_value; /* will hold the new flags */
2116 char buf[1]; /* Perhaps I should dynamically alloc this? */
2117
2118 /* Added for xon/xoff support */
2119 unsigned int iflag = termios->c_iflag;
2120 unsigned char vstop;
2121 unsigned char vstart;
2122
2123 dbg("%s", __func__);
2124
2125 /* Force baud rate if this device requires it, unless it is set to
2126 B0. */
2127 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2128 dbg("%s: forcing baud rate for this device", __func__);
2129 tty_encode_baud_rate(tty, priv->force_baud,
2130 priv->force_baud);
2131 }
2132
2133 /* Force RTS-CTS if this device requires it. */
2134 if (priv->force_rtscts) {
2135 dbg("%s: forcing rtscts for this device", __func__);
2136 termios->c_cflag |= CRTSCTS;
2137 }
2138
2139 cflag = termios->c_cflag;
2140
2141 /* FIXME -For this cut I don't care if the line is really changing or
2142 not - so just do the change regardless - should be able to
2143 compare old_termios and tty->termios */
2144 /* NOTE These routines can get interrupted by
2145 ftdi_sio_read_bulk_callback - need to examine what this means -
2146 don't see any problems yet */
2147
2148 /* Set number of data bits, parity, stop bits */
2149
2150 termios->c_cflag &= ~CMSPAR;
2151
2152 urb_value = 0;
2153 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2154 FTDI_SIO_SET_DATA_STOP_BITS_1);
2155 urb_value |= (cflag & PARENB ?
2156 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2157 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2158 FTDI_SIO_SET_DATA_PARITY_NONE);
2159 if (cflag & CSIZE) {
2160 switch (cflag & CSIZE) {
2161 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2162 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2163 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2164 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2165 default:
2166 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
2167 }
2168 }
2169
2170 /* This is needed by the break command since it uses the same command
2171 - but is or'ed with this value */
2172 priv->last_set_data_urb_value = urb_value;
2173
2174 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2175 FTDI_SIO_SET_DATA_REQUEST,
2176 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2177 urb_value , priv->interface,
2178 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
2179 dev_err(&port->dev, "%s FAILED to set "
2180 "databits/stopbits/parity\n", __func__);
2181 }
2182
2183 /* Now do the baudrate */
2184 if ((cflag & CBAUD) == B0) {
2185 /* Disable flow control */
2186 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2187 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2188 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2189 0, priv->interface,
2190 buf, 0, WDR_TIMEOUT) < 0) {
2191 dev_err(&port->dev,
2192 "%s error from disable flowcontrol urb\n",
2193 __func__);
2194 }
2195 /* Drop RTS and DTR */
2196 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2197 } else {
2198 /* set the baudrate determined before */
2199 if (change_speed(tty, port))
2200 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2201 __func__);
2202 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2203 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2204 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2205 }
2206
2207 /* Set flow control */
2208 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2209 if (cflag & CRTSCTS) {
2210 dbg("%s Setting to CRTSCTS flow control", __func__);
2211 if (usb_control_msg(dev,
2212 usb_sndctrlpipe(dev, 0),
2213 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2214 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2215 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2216 buf, 0, WDR_TIMEOUT) < 0) {
2217 dev_err(&port->dev,
2218 "urb failed to set to rts/cts flow control\n");
2219 }
2220
2221 } else {
2222 /*
2223 * Xon/Xoff code
2224 *
2225 * Check the IXOFF status in the iflag component of the
2226 * termios structure. If IXOFF is not set, the pre-xon/xoff
2227 * code is executed.
2228 */
2229 if (iflag & IXOFF) {
2230 dbg("%s request to enable xonxoff iflag=%04x",
2231 __func__, iflag);
2232 /* Try to enable the XON/XOFF on the ftdi_sio
2233 * Set the vstart and vstop -- could have been done up
2234 * above where a lot of other dereferencing is done but
2235 * that would be very inefficient as vstart and vstop
2236 * are not always needed.
2237 */
2238 vstart = termios->c_cc[VSTART];
2239 vstop = termios->c_cc[VSTOP];
2240 urb_value = (vstop << 8) | (vstart);
2241
2242 if (usb_control_msg(dev,
2243 usb_sndctrlpipe(dev, 0),
2244 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2245 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2246 urb_value , (FTDI_SIO_XON_XOFF_HS
2247 | priv->interface),
2248 buf, 0, WDR_TIMEOUT) < 0) {
2249 dev_err(&port->dev, "urb failed to set to "
2250 "xon/xoff flow control\n");
2251 }
2252 } else {
2253 /* else clause to only run if cflag ! CRTSCTS and iflag
2254 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2255 * stack - not by device */
2256 dbg("%s Turning off hardware flow control", __func__);
2257 if (usb_control_msg(dev,
2258 usb_sndctrlpipe(dev, 0),
2259 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2260 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2261 0, priv->interface,
2262 buf, 0, WDR_TIMEOUT) < 0) {
2263 dev_err(&port->dev,
2264 "urb failed to clear flow control\n");
2265 }
2266 }
2267
2268 }
2269 return;
2270 }
2271
2272 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2273 {
2274 struct usb_serial_port *port = tty->driver_data;
2275 struct ftdi_private *priv = usb_get_serial_port_data(port);
2276 unsigned char buf[2];
2277 int ret;
2278
2279 dbg("%s TIOCMGET", __func__);
2280 switch (priv->chip_type) {
2281 case SIO:
2282 /* Request the status from the device */
2283 ret = usb_control_msg(port->serial->dev,
2284 usb_rcvctrlpipe(port->serial->dev, 0),
2285 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2286 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2287 0, 0,
2288 buf, 1, WDR_TIMEOUT);
2289 if (ret < 0) {
2290 dbg("%s Could not get modem status of device - err: %d", __func__,
2291 ret);
2292 return ret;
2293 }
2294 break;
2295 case FT8U232AM:
2296 case FT232BM:
2297 case FT2232C:
2298 case FT232RL:
2299 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2300 value) - in the same format as the data returned from the in
2301 point */
2302 ret = usb_control_msg(port->serial->dev,
2303 usb_rcvctrlpipe(port->serial->dev, 0),
2304 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2305 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2306 0, priv->interface,
2307 buf, 2, WDR_TIMEOUT);
2308 if (ret < 0) {
2309 dbg("%s Could not get modem status of device - err: %d", __func__,
2310 ret);
2311 return ret;
2312 }
2313 break;
2314 default:
2315 return -EFAULT;
2316 break;
2317 }
2318
2319 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2320 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2321 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2322 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2323 priv->last_dtr_rts;
2324 }
2325
2326 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2327 unsigned int set, unsigned int clear)
2328 {
2329 struct usb_serial_port *port = tty->driver_data;
2330 dbg("%s TIOCMSET", __func__);
2331 return update_mctrl(port, set, clear);
2332 }
2333
2334
2335 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2336 unsigned int cmd, unsigned long arg)
2337 {
2338 struct usb_serial_port *port = tty->driver_data;
2339 struct ftdi_private *priv = usb_get_serial_port_data(port);
2340
2341 dbg("%s cmd 0x%04x", __func__, cmd);
2342
2343 /* Based on code from acm.c and others */
2344 switch (cmd) {
2345
2346 case TIOCGSERIAL: /* gets serial port data */
2347 return get_serial_info(port,
2348 (struct serial_struct __user *) arg);
2349
2350 case TIOCSSERIAL: /* sets serial port data */
2351 return set_serial_info(tty, port,
2352 (struct serial_struct __user *) arg);
2353
2354 /*
2355 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2356 * - mask passed in arg for lines of interest
2357 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2358 * Caller should use TIOCGICOUNT to see which one it was.
2359 *
2360 * This code is borrowed from linux/drivers/char/serial.c
2361 */
2362 case TIOCMIWAIT:
2363 while (priv != NULL) {
2364 interruptible_sleep_on(&priv->delta_msr_wait);
2365 /* see if a signal did it */
2366 if (signal_pending(current))
2367 return -ERESTARTSYS;
2368 else {
2369 char diff = priv->diff_status;
2370
2371 if (diff == 0)
2372 return -EIO; /* no change => error */
2373
2374 /* Consume all events */
2375 priv->diff_status = 0;
2376
2377 /* Return 0 if caller wanted to know about
2378 these bits */
2379 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2380 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2381 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2382 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2383 return 0;
2384 }
2385 /*
2386 * Otherwise caller can't care less about what
2387 * happened,and so we continue to wait for more
2388 * events.
2389 */
2390 }
2391 }
2392 return 0;
2393 default:
2394 break;
2395 }
2396 /* This is not necessarily an error - turns out the higher layers
2397 * will do some ioctls themselves (see comment above)
2398 */
2399 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2400 return -ENOIOCTLCMD;
2401 }
2402
2403 static void ftdi_throttle(struct tty_struct *tty)
2404 {
2405 struct usb_serial_port *port = tty->driver_data;
2406 struct ftdi_private *priv = usb_get_serial_port_data(port);
2407 unsigned long flags;
2408
2409 dbg("%s - port %d", __func__, port->number);
2410
2411 spin_lock_irqsave(&priv->rx_lock, flags);
2412 priv->rx_flags |= THROTTLED;
2413 spin_unlock_irqrestore(&priv->rx_lock, flags);
2414 }
2415
2416
2417 static void ftdi_unthrottle(struct tty_struct *tty)
2418 {
2419 struct usb_serial_port *port = tty->driver_data;
2420 struct ftdi_private *priv = usb_get_serial_port_data(port);
2421 int actually_throttled;
2422 unsigned long flags;
2423
2424 dbg("%s - port %d", __func__, port->number);
2425
2426 spin_lock_irqsave(&priv->rx_lock, flags);
2427 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2428 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2429 spin_unlock_irqrestore(&priv->rx_lock, flags);
2430
2431 if (actually_throttled)
2432 schedule_delayed_work(&priv->rx_work, 0);
2433 }
2434
2435 static int __init ftdi_init(void)
2436 {
2437 int retval;
2438
2439 dbg("%s", __func__);
2440 if (vendor > 0 && product > 0) {
2441 /* Add user specified VID/PID to reserved element of table. */
2442 int i;
2443 for (i = 0; id_table_combined[i].idVendor; i++)
2444 ;
2445 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2446 id_table_combined[i].idVendor = vendor;
2447 id_table_combined[i].idProduct = product;
2448 }
2449 retval = usb_serial_register(&ftdi_sio_device);
2450 if (retval)
2451 goto failed_sio_register;
2452 retval = usb_register(&ftdi_driver);
2453 if (retval)
2454 goto failed_usb_register;
2455
2456 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2457 DRIVER_DESC "\n");
2458 return 0;
2459 failed_usb_register:
2460 usb_serial_deregister(&ftdi_sio_device);
2461 failed_sio_register:
2462 return retval;
2463 }
2464
2465
2466 static void __exit ftdi_exit(void)
2467 {
2468
2469 dbg("%s", __func__);
2470
2471 usb_deregister(&ftdi_driver);
2472 usb_serial_deregister(&ftdi_sio_device);
2473
2474 }
2475
2476
2477 module_init(ftdi_init);
2478 module_exit(ftdi_exit);
2479
2480 MODULE_AUTHOR(DRIVER_AUTHOR);
2481 MODULE_DESCRIPTION(DRIVER_DESC);
2482 MODULE_LICENSE("GPL");
2483
2484 module_param(debug, bool, S_IRUGO | S_IWUSR);
2485 MODULE_PARM_DESC(debug, "Debug enabled or not");
2486 module_param(vendor, ushort, 0);
2487 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2488 __MODULE_STRING(FTDI_VID)")");
2489 module_param(product, ushort, 0);
2490 MODULE_PARM_DESC(product, "User specified product ID");
2491
Support for the Chinese Samsung S3C2440 based development boards