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USB: ftdi_sio: add vendor and product id for Bayer glucose meter serial converter...
[linux-2.6/mini2440.git] / drivers / usb / serial / ftdi_sio.c
blob697ff334164d14d1a5de915c166cba9741545019
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 struct kref kref;
60 ftdi_chip_type_t chip_type;
61 /* type of device, either SIO or FT8U232AM */
62 int baud_base; /* baud base clock for divisor setting */
63 int custom_divisor; /* custom_divisor kludge, this is for
64 baud_base (different from what goes to the
65 chip!) */
66 __u16 last_set_data_urb_value ;
67 /* the last data state set - needed for doing
68 * a break
69 */
70 int write_offset; /* This is the offset in the usb data block to
71 * write the serial data - it varies between
72 * devices
73 */
74 int flags; /* some ASYNC_xxxx flags are supported */
75 unsigned long last_dtr_rts; /* saved modem control outputs */
76 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
77 char prev_status, diff_status; /* Used for TIOCMIWAIT */
78 __u8 rx_flags; /* receive state flags (throttling) */
79 spinlock_t rx_lock; /* spinlock for receive state */
80 struct delayed_work rx_work;
81 struct usb_serial_port *port;
82 int rx_processed;
83 unsigned long rx_bytes;
84
85 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
86
87 speed_t force_baud; /* if non-zero, force the baud rate to
88 this value */
89 int force_rtscts; /* if non-zero, force RTS-CTS to always
90 be enabled */
91
92 spinlock_t tx_lock; /* spinlock for transmit state */
93 unsigned long tx_bytes;
94 unsigned long tx_outstanding_bytes;
95 unsigned long tx_outstanding_urbs;
96 };
97
98 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
99 struct ftdi_sio_quirk {
100 int (*probe)(struct usb_serial *);
101 /* Special settings for probed ports. */
102 void (*port_probe)(struct ftdi_private *);
103 };
104
105 static int ftdi_jtag_probe(struct usb_serial *serial);
106 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
107 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
108 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
109
110 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
111 .probe = ftdi_jtag_probe,
112 };
113
114 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
115 .probe = ftdi_mtxorb_hack_setup,
116 };
117
118 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
119 .port_probe = ftdi_USB_UIRT_setup,
120 };
121
122 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
123 .port_probe = ftdi_HE_TIRA1_setup,
124 };
125
126 /*
127 * The 8U232AM has the same API as the sio except for:
128 * - it can support MUCH higher baudrates; up to:
129 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
130 * o 230400 at 12MHz
131 * so .. 8U232AM's baudrate setting codes are different
132 * - it has a two byte status code.
133 * - it returns characters every 16ms (the FTDI does it every 40ms)
134 *
135 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
136 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
137 * combinations in both tables.
138 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
139 * but I don't know if those ever went into mass production. [Ian Abbott]
140 */
141
142
143
144 static struct usb_device_id id_table_combined [] = {
145 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
146 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
147 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
161 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
168 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
169 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
170 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
172 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
181 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
230 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
236 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
276 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
278 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
280 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
282 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
284 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
286 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
454 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
455 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
456 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
457 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
505 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
506 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
507 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
508 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
509 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
510 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
511 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
512 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
513 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
514 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
545 /*
546 * Due to many user requests for multiple ELV devices we enable
547 * them by default.
548 */
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
570 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
571 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
572 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
573 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
574 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
578 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
579 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
580 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
581 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
582 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
583 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
584 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
585 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
586 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
587 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
588 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
589 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
590 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
591 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
592 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
600 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
601 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
610 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
612 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
613 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
614 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
615 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
619 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
621 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
622 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
623 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
624 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
626 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
627 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
628 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
629 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
630 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
631 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
632 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
633 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
634 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
635 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
636 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
637 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
638 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
639 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
640 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
641 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
642 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
643 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
644 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
645 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
646 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
647 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
648 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
649 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
650 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
651 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
652 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
653 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
654 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
655 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
656 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
657 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
658 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
659 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
660 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
661 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
663 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
664 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
665 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
666 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
667 { USB_DEVICE(ATMEL_VID, STK541_PID) },
668 { USB_DEVICE(DE_VID, STB_PID) },
669 { USB_DEVICE(DE_VID, WHT_PID) },
670 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
671 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
672 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
673 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
674 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
675 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
676 { }, /* Optional parameter entry */
677 { } /* Terminating entry */
678 };
679
680 MODULE_DEVICE_TABLE(usb, id_table_combined);
681
682 static struct usb_driver ftdi_driver = {
683 .name = "ftdi_sio",
684 .probe = usb_serial_probe,
685 .disconnect = usb_serial_disconnect,
686 .id_table = id_table_combined,
687 .no_dynamic_id = 1,
688 };
689
690 static const char *ftdi_chip_name[] = {
691 [SIO] = "SIO", /* the serial part of FT8U100AX */
692 [FT8U232AM] = "FT8U232AM",
693 [FT232BM] = "FT232BM",
694 [FT2232C] = "FT2232C",
695 [FT232RL] = "FT232RL",
696 };
697
698
699 /* Constants for read urb and write urb */
700 #define BUFSZ 512
701 #define PKTSZ 64
702
703 /* rx_flags */
704 #define THROTTLED 0x01
705 #define ACTUALLY_THROTTLED 0x02
706
707 /* Used for TIOCMIWAIT */
708 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
709 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
710 /* End TIOCMIWAIT */
711
712 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
713 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
714
715 /* function prototypes for a FTDI serial converter */
716 static int ftdi_sio_probe(struct usb_serial *serial,
717 const struct usb_device_id *id);
718 static int ftdi_sio_port_probe(struct usb_serial_port *port);
719 static int ftdi_sio_port_remove(struct usb_serial_port *port);
720 static int ftdi_open(struct tty_struct *tty,
721 struct usb_serial_port *port, struct file *filp);
722 static void ftdi_close(struct tty_struct *tty,
723 struct usb_serial_port *port, struct file *filp);
724 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
725 const unsigned char *buf, int count);
726 static int ftdi_write_room(struct tty_struct *tty);
727 static int ftdi_chars_in_buffer(struct tty_struct *tty);
728 static void ftdi_write_bulk_callback(struct urb *urb);
729 static void ftdi_read_bulk_callback(struct urb *urb);
730 static void ftdi_process_read(struct work_struct *work);
731 static void ftdi_set_termios(struct tty_struct *tty,
732 struct usb_serial_port *port, struct ktermios *old);
733 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
734 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
735 unsigned int set, unsigned int clear);
736 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
737 unsigned int cmd, unsigned long arg);
738 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
739 static void ftdi_throttle(struct tty_struct *tty);
740 static void ftdi_unthrottle(struct tty_struct *tty);
741
742 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
743 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
744 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
745 static __u32 ftdi_232bm_baud_to_divisor(int baud);
746
747 static struct usb_serial_driver ftdi_sio_device = {
748 .driver = {
749 .owner = THIS_MODULE,
750 .name = "ftdi_sio",
751 },
752 .description = "FTDI USB Serial Device",
753 .usb_driver = &ftdi_driver ,
754 .id_table = id_table_combined,
755 .num_ports = 1,
756 .probe = ftdi_sio_probe,
757 .port_probe = ftdi_sio_port_probe,
758 .port_remove = ftdi_sio_port_remove,
759 .open = ftdi_open,
760 .close = ftdi_close,
761 .throttle = ftdi_throttle,
762 .unthrottle = ftdi_unthrottle,
763 .write = ftdi_write,
764 .write_room = ftdi_write_room,
765 .chars_in_buffer = ftdi_chars_in_buffer,
766 .read_bulk_callback = ftdi_read_bulk_callback,
767 .write_bulk_callback = ftdi_write_bulk_callback,
768 .tiocmget = ftdi_tiocmget,
769 .tiocmset = ftdi_tiocmset,
770 .ioctl = ftdi_ioctl,
771 .set_termios = ftdi_set_termios,
772 .break_ctl = ftdi_break_ctl,
773 };
774
775
776 #define WDR_TIMEOUT 5000 /* default urb timeout */
777 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
778
779 /* High and low are for DTR, RTS etc etc */
780 #define HIGH 1
781 #define LOW 0
782
783 /* number of outstanding urbs to prevent userspace DoS from happening */
784 #define URB_UPPER_LIMIT 42
785
786 /*
787 * ***************************************************************************
788 * Utility functions
789 * ***************************************************************************
790 */
791
792 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
793 {
794 unsigned short int divisor;
795 /* divisor shifted 3 bits to the left */
796 int divisor3 = base / 2 / baud;
797 if ((divisor3 & 0x7) == 7)
798 divisor3++; /* round x.7/8 up to x+1 */
799 divisor = divisor3 >> 3;
800 divisor3 &= 0x7;
801 if (divisor3 == 1)
802 divisor |= 0xc000;
803 else if (divisor3 >= 4)
804 divisor |= 0x4000;
805 else if (divisor3 != 0)
806 divisor |= 0x8000;
807 else if (divisor == 1)
808 divisor = 0; /* special case for maximum baud rate */
809 return divisor;
810 }
811
812 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
813 {
814 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
815 }
816
817 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
818 {
819 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
820 __u32 divisor;
821 /* divisor shifted 3 bits to the left */
822 int divisor3 = base / 2 / baud;
823 divisor = divisor3 >> 3;
824 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
825 /* Deal with special cases for highest baud rates. */
826 if (divisor == 1)
827 divisor = 0;
828 else if (divisor == 0x4001)
829 divisor = 1;
830 return divisor;
831 }
832
833 static __u32 ftdi_232bm_baud_to_divisor(int baud)
834 {
835 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
836 }
837
838 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
839 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
840
841 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
842 unsigned int clear)
843 {
844 struct ftdi_private *priv = usb_get_serial_port_data(port);
845 char *buf;
846 unsigned urb_value;
847 int rv;
848
849 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
850 dbg("%s - DTR|RTS not being set|cleared", __func__);
851 return 0; /* no change */
852 }
853
854 buf = kmalloc(1, GFP_NOIO);
855 if (!buf)
856 return -ENOMEM;
857
858 clear &= ~set; /* 'set' takes precedence over 'clear' */
859 urb_value = 0;
860 if (clear & TIOCM_DTR)
861 urb_value |= FTDI_SIO_SET_DTR_LOW;
862 if (clear & TIOCM_RTS)
863 urb_value |= FTDI_SIO_SET_RTS_LOW;
864 if (set & TIOCM_DTR)
865 urb_value |= FTDI_SIO_SET_DTR_HIGH;
866 if (set & TIOCM_RTS)
867 urb_value |= FTDI_SIO_SET_RTS_HIGH;
868 rv = usb_control_msg(port->serial->dev,
869 usb_sndctrlpipe(port->serial->dev, 0),
870 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
871 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
872 urb_value, priv->interface,
873 buf, 0, WDR_TIMEOUT);
874
875 kfree(buf);
876 if (rv < 0) {
877 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
878 __func__,
879 (set & TIOCM_DTR) ? "HIGH" :
880 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
881 (set & TIOCM_RTS) ? "HIGH" :
882 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
883 } else {
884 dbg("%s - DTR %s, RTS %s", __func__,
885 (set & TIOCM_DTR) ? "HIGH" :
886 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
887 (set & TIOCM_RTS) ? "HIGH" :
888 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
889 /* FIXME: locking on last_dtr_rts */
890 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
891 }
892 return rv;
893 }
894
895
896 static __u32 get_ftdi_divisor(struct tty_struct *tty,
897 struct usb_serial_port *port)
898 { /* get_ftdi_divisor */
899 struct ftdi_private *priv = usb_get_serial_port_data(port);
900 __u32 div_value = 0;
901 int div_okay = 1;
902 int baud;
903
904 /*
905 * The logic involved in setting the baudrate can be cleanly split into
906 * 3 steps.
907 * 1. Standard baud rates are set in tty->termios->c_cflag
908 * 2. If these are not enough, you can set any speed using alt_speed as
909 * follows:
910 * - set tty->termios->c_cflag speed to B38400
911 * - set your real speed in tty->alt_speed; it gets ignored when
912 * alt_speed==0, (or)
913 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
914 * follows:
915 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
916 * this just sets alt_speed to (HI: 57600, VHI: 115200,
917 * SHI: 230400, WARP: 460800)
918 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
919 * 3. You can also set baud rate by setting custom divisor as follows
920 * - set tty->termios->c_cflag speed to B38400
921 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
922 * follows:
923 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
924 * o custom_divisor set to baud_base / your_new_baudrate
925 * ** Step 3 is done courtesy of code borrowed from serial.c
926 * I should really spend some time and separate + move this common
927 * code to serial.c, it is replicated in nearly every serial driver
928 * you see.
929 */
930
931 /* 1. Get the baud rate from the tty settings, this observes
932 alt_speed hack */
933
934 baud = tty_get_baud_rate(tty);
935 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
936
937 /* 2. Observe async-compatible custom_divisor hack, update baudrate
938 if needed */
939
940 if (baud == 38400 &&
941 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
942 (priv->custom_divisor)) {
943 baud = priv->baud_base / priv->custom_divisor;
944 dbg("%s - custom divisor %d sets baud rate to %d",
945 __func__, priv->custom_divisor, baud);
946 }
947
948 /* 3. Convert baudrate to device-specific divisor */
949
950 if (!baud)
951 baud = 9600;
952 switch (priv->chip_type) {
953 case SIO: /* SIO chip */
954 switch (baud) {
955 case 300: div_value = ftdi_sio_b300; break;
956 case 600: div_value = ftdi_sio_b600; break;
957 case 1200: div_value = ftdi_sio_b1200; break;
958 case 2400: div_value = ftdi_sio_b2400; break;
959 case 4800: div_value = ftdi_sio_b4800; break;
960 case 9600: div_value = ftdi_sio_b9600; break;
961 case 19200: div_value = ftdi_sio_b19200; break;
962 case 38400: div_value = ftdi_sio_b38400; break;
963 case 57600: div_value = ftdi_sio_b57600; break;
964 case 115200: div_value = ftdi_sio_b115200; break;
965 } /* baud */
966 if (div_value == 0) {
967 dbg("%s - Baudrate (%d) requested is not supported",
968 __func__, baud);
969 div_value = ftdi_sio_b9600;
970 baud = 9600;
971 div_okay = 0;
972 }
973 break;
974 case FT8U232AM: /* 8U232AM chip */
975 if (baud <= 3000000) {
976 div_value = ftdi_232am_baud_to_divisor(baud);
977 } else {
978 dbg("%s - Baud rate too high!", __func__);
979 baud = 9600;
980 div_value = ftdi_232am_baud_to_divisor(9600);
981 div_okay = 0;
982 }
983 break;
984 case FT232BM: /* FT232BM chip */
985 case FT2232C: /* FT2232C chip */
986 case FT232RL:
987 if (baud <= 3000000) {
988 div_value = ftdi_232bm_baud_to_divisor(baud);
989 } else {
990 dbg("%s - Baud rate too high!", __func__);
991 div_value = ftdi_232bm_baud_to_divisor(9600);
992 div_okay = 0;
993 baud = 9600;
994 }
995 break;
996 } /* priv->chip_type */
997
998 if (div_okay) {
999 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1000 __func__, baud, (unsigned long)div_value,
1001 ftdi_chip_name[priv->chip_type]);
1002 }
1003
1004 tty_encode_baud_rate(tty, baud, baud);
1005 return div_value;
1006 }
1007
1008 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1009 {
1010 struct ftdi_private *priv = usb_get_serial_port_data(port);
1011 char *buf;
1012 __u16 urb_value;
1013 __u16 urb_index;
1014 __u32 urb_index_value;
1015 int rv;
1016
1017 buf = kmalloc(1, GFP_NOIO);
1018 if (!buf)
1019 return -ENOMEM;
1020
1021 urb_index_value = get_ftdi_divisor(tty, port);
1022 urb_value = (__u16)urb_index_value;
1023 urb_index = (__u16)(urb_index_value >> 16);
1024 if (priv->interface) { /* FT2232C */
1025 urb_index = (__u16)((urb_index << 8) | priv->interface);
1026 }
1027
1028 rv = usb_control_msg(port->serial->dev,
1029 usb_sndctrlpipe(port->serial->dev, 0),
1030 FTDI_SIO_SET_BAUDRATE_REQUEST,
1031 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1032 urb_value, urb_index,
1033 buf, 0, WDR_SHORT_TIMEOUT);
1034
1035 kfree(buf);
1036 return rv;
1037 }
1038
1039
1040
1041 static int get_serial_info(struct usb_serial_port *port,
1042 struct serial_struct __user *retinfo)
1043 {
1044 struct ftdi_private *priv = usb_get_serial_port_data(port);
1045 struct serial_struct tmp;
1046
1047 if (!retinfo)
1048 return -EFAULT;
1049 memset(&tmp, 0, sizeof(tmp));
1050 tmp.flags = priv->flags;
1051 tmp.baud_base = priv->baud_base;
1052 tmp.custom_divisor = priv->custom_divisor;
1053 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1054 return -EFAULT;
1055 return 0;
1056 } /* get_serial_info */
1057
1058
1059 static int set_serial_info(struct tty_struct *tty,
1060 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1061 { /* set_serial_info */
1062 struct ftdi_private *priv = usb_get_serial_port_data(port);
1063 struct serial_struct new_serial;
1064 struct ftdi_private old_priv;
1065
1066 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1067 return -EFAULT;
1068
1069 lock_kernel();
1070 old_priv = *priv;
1071
1072 /* Do error checking and permission checking */
1073
1074 if (!capable(CAP_SYS_ADMIN)) {
1075 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1076 (priv->flags & ~ASYNC_USR_MASK))) {
1077 unlock_kernel();
1078 return -EPERM;
1079 }
1080 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1081 (new_serial.flags & ASYNC_USR_MASK));
1082 priv->custom_divisor = new_serial.custom_divisor;
1083 goto check_and_exit;
1084 }
1085
1086 if ((new_serial.baud_base != priv->baud_base) &&
1087 (new_serial.baud_base < 9600)) {
1088 unlock_kernel();
1089 return -EINVAL;
1090 }
1091
1092 /* Make the changes - these are privileged changes! */
1093
1094 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1095 (new_serial.flags & ASYNC_FLAGS));
1096 priv->custom_divisor = new_serial.custom_divisor;
1097
1098 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1099
1100 check_and_exit:
1101 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1102 (priv->flags & ASYNC_SPD_MASK)) {
1103 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1104 tty->alt_speed = 57600;
1105 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1106 tty->alt_speed = 115200;
1107 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1108 tty->alt_speed = 230400;
1109 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1110 tty->alt_speed = 460800;
1111 else
1112 tty->alt_speed = 0;
1113 }
1114 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1115 (priv->flags & ASYNC_SPD_MASK)) ||
1116 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1117 (old_priv.custom_divisor != priv->custom_divisor))) {
1118 unlock_kernel();
1119 change_speed(tty, port);
1120 }
1121 else
1122 unlock_kernel();
1123 return 0;
1124
1125 } /* set_serial_info */
1126
1127
1128 /* Determine type of FTDI chip based on USB config and descriptor. */
1129 static void ftdi_determine_type(struct usb_serial_port *port)
1130 {
1131 struct ftdi_private *priv = usb_get_serial_port_data(port);
1132 struct usb_serial *serial = port->serial;
1133 struct usb_device *udev = serial->dev;
1134 unsigned version;
1135 unsigned interfaces;
1136
1137 /* Assume it is not the original SIO device for now. */
1138 priv->baud_base = 48000000 / 2;
1139 priv->write_offset = 0;
1140
1141 version = le16_to_cpu(udev->descriptor.bcdDevice);
1142 interfaces = udev->actconfig->desc.bNumInterfaces;
1143 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1144 version, interfaces);
1145 if (interfaces > 1) {
1146 int inter;
1147
1148 /* Multiple interfaces. Assume FT2232C. */
1149 priv->chip_type = FT2232C;
1150 /* Determine interface code. */
1151 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1152 if (inter == 0)
1153 priv->interface = PIT_SIOA;
1154 else
1155 priv->interface = PIT_SIOB;
1156 /* BM-type devices have a bug where bcdDevice gets set
1157 * to 0x200 when iSerialNumber is 0. */
1158 if (version < 0x500) {
1159 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1160 __func__);
1161 }
1162 } else if (version < 0x200) {
1163 /* Old device. Assume its the original SIO. */
1164 priv->chip_type = SIO;
1165 priv->baud_base = 12000000 / 16;
1166 priv->write_offset = 1;
1167 } else if (version < 0x400) {
1168 /* Assume its an FT8U232AM (or FT8U245AM) */
1169 /* (It might be a BM because of the iSerialNumber bug,
1170 * but it will still work as an AM device.) */
1171 priv->chip_type = FT8U232AM;
1172 } else if (version < 0x600) {
1173 /* Assume its an FT232BM (or FT245BM) */
1174 priv->chip_type = FT232BM;
1175 } else {
1176 /* Assume its an FT232R */
1177 priv->chip_type = FT232RL;
1178 }
1179 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1180 }
1181
1182
1183 /*
1184 * ***************************************************************************
1185 * Sysfs Attribute
1186 * ***************************************************************************
1187 */
1188
1189 static ssize_t show_latency_timer(struct device *dev,
1190 struct device_attribute *attr, char *buf)
1191 {
1192 struct usb_serial_port *port = to_usb_serial_port(dev);
1193 struct ftdi_private *priv = usb_get_serial_port_data(port);
1194 struct usb_device *udev = port->serial->dev;
1195 unsigned short latency = 0;
1196 int rv = 0;
1197
1198
1199 dbg("%s", __func__);
1200
1201 rv = usb_control_msg(udev,
1202 usb_rcvctrlpipe(udev, 0),
1203 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1204 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1205 0, priv->interface,
1206 (char *) &latency, 1, WDR_TIMEOUT);
1207
1208 if (rv < 0) {
1209 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1210 return -EIO;
1211 }
1212 return sprintf(buf, "%i\n", latency);
1213 }
1214
1215 /* Write a new value of the latency timer, in units of milliseconds. */
1216 static ssize_t store_latency_timer(struct device *dev,
1217 struct device_attribute *attr, const char *valbuf,
1218 size_t count)
1219 {
1220 struct usb_serial_port *port = to_usb_serial_port(dev);
1221 struct ftdi_private *priv = usb_get_serial_port_data(port);
1222 struct usb_device *udev = port->serial->dev;
1223 char buf[1];
1224 int v = simple_strtoul(valbuf, NULL, 10);
1225 int rv = 0;
1226
1227 dbg("%s: setting latency timer = %i", __func__, v);
1228
1229 rv = usb_control_msg(udev,
1230 usb_sndctrlpipe(udev, 0),
1231 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1232 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1233 v, priv->interface,
1234 buf, 0, WDR_TIMEOUT);
1235
1236 if (rv < 0) {
1237 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1238 return -EIO;
1239 }
1240
1241 return count;
1242 }
1243
1244 /* Write an event character directly to the FTDI register. The ASCII
1245 value is in the low 8 bits, with the enable bit in the 9th bit. */
1246 static ssize_t store_event_char(struct device *dev,
1247 struct device_attribute *attr, const char *valbuf, size_t count)
1248 {
1249 struct usb_serial_port *port = to_usb_serial_port(dev);
1250 struct ftdi_private *priv = usb_get_serial_port_data(port);
1251 struct usb_device *udev = port->serial->dev;
1252 char buf[1];
1253 int v = simple_strtoul(valbuf, NULL, 10);
1254 int rv = 0;
1255
1256 dbg("%s: setting event char = %i", __func__, v);
1257
1258 rv = usb_control_msg(udev,
1259 usb_sndctrlpipe(udev, 0),
1260 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1261 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1262 v, priv->interface,
1263 buf, 0, WDR_TIMEOUT);
1264
1265 if (rv < 0) {
1266 dbg("Unable to write event character: %i", rv);
1267 return -EIO;
1268 }
1269
1270 return count;
1271 }
1272
1273 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1274 store_latency_timer);
1275 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1276
1277 static int create_sysfs_attrs(struct usb_serial_port *port)
1278 {
1279 struct ftdi_private *priv = usb_get_serial_port_data(port);
1280 int retval = 0;
1281
1282 dbg("%s", __func__);
1283
1284 /* XXX I've no idea if the original SIO supports the event_char
1285 * sysfs parameter, so I'm playing it safe. */
1286 if (priv->chip_type != SIO) {
1287 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1288 retval = device_create_file(&port->dev, &dev_attr_event_char);
1289 if ((!retval) &&
1290 (priv->chip_type == FT232BM ||
1291 priv->chip_type == FT2232C ||
1292 priv->chip_type == FT232RL)) {
1293 retval = device_create_file(&port->dev,
1294 &dev_attr_latency_timer);
1295 }
1296 }
1297 return retval;
1298 }
1299
1300 static void remove_sysfs_attrs(struct usb_serial_port *port)
1301 {
1302 struct ftdi_private *priv = usb_get_serial_port_data(port);
1303
1304 dbg("%s", __func__);
1305
1306 /* XXX see create_sysfs_attrs */
1307 if (priv->chip_type != SIO) {
1308 device_remove_file(&port->dev, &dev_attr_event_char);
1309 if (priv->chip_type == FT232BM ||
1310 priv->chip_type == FT2232C ||
1311 priv->chip_type == FT232RL) {
1312 device_remove_file(&port->dev, &dev_attr_latency_timer);
1313 }
1314 }
1315
1316 }
1317
1318 /*
1319 * ***************************************************************************
1320 * FTDI driver specific functions
1321 * ***************************************************************************
1322 */
1323
1324 /* Probe function to check for special devices */
1325 static int ftdi_sio_probe(struct usb_serial *serial,
1326 const struct usb_device_id *id)
1327 {
1328 struct ftdi_sio_quirk *quirk =
1329 (struct ftdi_sio_quirk *)id->driver_info;
1330
1331 if (quirk && quirk->probe) {
1332 int ret = quirk->probe(serial);
1333 if (ret != 0)
1334 return ret;
1335 }
1336
1337 usb_set_serial_data(serial, (void *)id->driver_info);
1338
1339 return 0;
1340 }
1341
1342 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1343 {
1344 struct ftdi_private *priv;
1345 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1346
1347
1348 dbg("%s", __func__);
1349
1350 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1351 if (!priv) {
1352 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1353 sizeof(struct ftdi_private));
1354 return -ENOMEM;
1355 }
1356
1357 kref_init(&priv->kref);
1358 spin_lock_init(&priv->rx_lock);
1359 spin_lock_init(&priv->tx_lock);
1360 init_waitqueue_head(&priv->delta_msr_wait);
1361 /* This will push the characters through immediately rather
1362 than queue a task to deliver them */
1363 priv->flags = ASYNC_LOW_LATENCY;
1364
1365 if (quirk && quirk->port_probe)
1366 quirk->port_probe(priv);
1367
1368 /* Increase the size of read buffers */
1369 kfree(port->bulk_in_buffer);
1370 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1371 if (!port->bulk_in_buffer) {
1372 kfree(priv);
1373 return -ENOMEM;
1374 }
1375 if (port->read_urb) {
1376 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1377 port->read_urb->transfer_buffer_length = BUFSZ;
1378 }
1379
1380 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1381 priv->port = port;
1382
1383 /* Free port's existing write urb and transfer buffer. */
1384 if (port->write_urb) {
1385 usb_free_urb(port->write_urb);
1386 port->write_urb = NULL;
1387 }
1388 kfree(port->bulk_out_buffer);
1389 port->bulk_out_buffer = NULL;
1390
1391 usb_set_serial_port_data(port, priv);
1392
1393 ftdi_determine_type(port);
1394 create_sysfs_attrs(port);
1395 return 0;
1396 }
1397
1398 /* Setup for the USB-UIRT device, which requires hardwired
1399 * baudrate (38400 gets mapped to 312500) */
1400 /* Called from usbserial:serial_probe */
1401 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1402 {
1403 dbg("%s", __func__);
1404
1405 priv->flags |= ASYNC_SPD_CUST;
1406 priv->custom_divisor = 77;
1407 priv->force_baud = 38400;
1408 } /* ftdi_USB_UIRT_setup */
1409
1410 /* Setup for the HE-TIRA1 device, which requires hardwired
1411 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1412
1413 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1414 {
1415 dbg("%s", __func__);
1416
1417 priv->flags |= ASYNC_SPD_CUST;
1418 priv->custom_divisor = 240;
1419 priv->force_baud = 38400;
1420 priv->force_rtscts = 1;
1421 } /* ftdi_HE_TIRA1_setup */
1422
1423 /*
1424 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1425 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1426 * userspace using openocd.
1427 */
1428 static int ftdi_jtag_probe(struct usb_serial *serial)
1429 {
1430 struct usb_device *udev = serial->dev;
1431 struct usb_interface *interface = serial->interface;
1432
1433 dbg("%s", __func__);
1434
1435 if (interface == udev->actconfig->interface[0]) {
1436 dev_info(&udev->dev,
1437 "Ignoring serial port reserved for JTAG\n");
1438 return -ENODEV;
1439 }
1440
1441 return 0;
1442 }
1443
1444 /*
1445 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1446 * We have to correct it if we want to read from it.
1447 */
1448 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1449 {
1450 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1451 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1452
1453 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1454 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1455 dev_info(&serial->dev->dev,
1456 "Fixing invalid wMaxPacketSize on read pipe\n");
1457 }
1458
1459 return 0;
1460 }
1461
1462 static void ftdi_sio_priv_release(struct kref *k)
1463 {
1464 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1465
1466 kfree(priv);
1467 }
1468
1469 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1470 {
1471 struct ftdi_private *priv = usb_get_serial_port_data(port);
1472
1473 dbg("%s", __func__);
1474
1475 remove_sysfs_attrs(port);
1476
1477 kref_put(&priv->kref, ftdi_sio_priv_release);
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 else
1542 kref_get(&priv->kref);
1543
1544 return result;
1545 } /* ftdi_open */
1546
1547
1548
1549 /*
1550 * usbserial:__serial_close only calls ftdi_close if the point is open
1551 *
1552 * This only gets called when it is the last close
1553 *
1554 *
1555 */
1556
1557 static void ftdi_close(struct tty_struct *tty,
1558 struct usb_serial_port *port, struct file *filp)
1559 { /* ftdi_close */
1560 unsigned int c_cflag = tty->termios->c_cflag;
1561 struct ftdi_private *priv = usb_get_serial_port_data(port);
1562 char buf[1];
1563
1564 dbg("%s", __func__);
1565
1566 mutex_lock(&port->serial->disc_mutex);
1567 if (c_cflag & HUPCL && !port->serial->disconnected) {
1568 /* Disable flow control */
1569 if (usb_control_msg(port->serial->dev,
1570 usb_sndctrlpipe(port->serial->dev, 0),
1571 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1572 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1573 0, priv->interface, buf, 0,
1574 WDR_TIMEOUT) < 0) {
1575 dev_err(&port->dev, "error from flowcontrol urb\n");
1576 }
1577
1578 /* drop RTS and DTR */
1579 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1580 } /* Note change no line if hupcl is off */
1581 mutex_unlock(&port->serial->disc_mutex);
1582
1583 /* cancel any scheduled reading */
1584 cancel_delayed_work_sync(&priv->rx_work);
1585
1586 /* shutdown our bulk read */
1587 usb_kill_urb(port->read_urb);
1588 kref_put(&priv->kref, ftdi_sio_priv_release);
1589 } /* ftdi_close */
1590
1591
1592
1593 /* The SIO requires the first byte to have:
1594 * B0 1
1595 * B1 0
1596 * B2..7 length of message excluding byte 0
1597 *
1598 * The new devices do not require this byte
1599 */
1600 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1601 const unsigned char *buf, int count)
1602 { /* ftdi_write */
1603 struct ftdi_private *priv = usb_get_serial_port_data(port);
1604 struct urb *urb;
1605 unsigned char *buffer;
1606 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1607 int status;
1608 int transfer_size;
1609 unsigned long flags;
1610
1611 dbg("%s port %d, %d bytes", __func__, port->number, count);
1612
1613 if (count == 0) {
1614 dbg("write request of 0 bytes");
1615 return 0;
1616 }
1617 spin_lock_irqsave(&priv->tx_lock, flags);
1618 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1619 spin_unlock_irqrestore(&priv->tx_lock, flags);
1620 dbg("%s - write limit hit\n", __func__);
1621 return 0;
1622 }
1623 priv->tx_outstanding_urbs++;
1624 spin_unlock_irqrestore(&priv->tx_lock, flags);
1625
1626 data_offset = priv->write_offset;
1627 dbg("data_offset set to %d", data_offset);
1628
1629 /* Determine total transfer size */
1630 transfer_size = count;
1631 if (data_offset > 0) {
1632 /* Original sio needs control bytes too... */
1633 transfer_size += (data_offset *
1634 ((count + (PKTSZ - 1 - data_offset)) /
1635 (PKTSZ - data_offset)));
1636 }
1637
1638 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1639 if (!buffer) {
1640 dev_err(&port->dev,
1641 "%s ran out of kernel memory for urb ...\n", __func__);
1642 count = -ENOMEM;
1643 goto error_no_buffer;
1644 }
1645
1646 urb = usb_alloc_urb(0, GFP_ATOMIC);
1647 if (!urb) {
1648 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1649 count = -ENOMEM;
1650 goto error_no_urb;
1651 }
1652
1653 /* Copy data */
1654 if (data_offset > 0) {
1655 /* Original sio requires control byte at start of
1656 each packet. */
1657 int user_pktsz = PKTSZ - data_offset;
1658 int todo = count;
1659 unsigned char *first_byte = buffer;
1660 const unsigned char *current_position = buf;
1661
1662 while (todo > 0) {
1663 if (user_pktsz > todo)
1664 user_pktsz = todo;
1665 /* Write the control byte at the front of the packet*/
1666 *first_byte = 1 | ((user_pktsz) << 2);
1667 /* Copy data for packet */
1668 memcpy(first_byte + data_offset,
1669 current_position, user_pktsz);
1670 first_byte += user_pktsz + data_offset;
1671 current_position += user_pktsz;
1672 todo -= user_pktsz;
1673 }
1674 } else {
1675 /* No control byte required. */
1676 /* Copy in the data to send */
1677 memcpy(buffer, buf, count);
1678 }
1679
1680 usb_serial_debug_data(debug, &port->dev, __func__,
1681 transfer_size, buffer);
1682
1683 /* fill the buffer and send it */
1684 usb_fill_bulk_urb(urb, port->serial->dev,
1685 usb_sndbulkpipe(port->serial->dev,
1686 port->bulk_out_endpointAddress),
1687 buffer, transfer_size,
1688 ftdi_write_bulk_callback, port);
1689
1690 status = usb_submit_urb(urb, GFP_ATOMIC);
1691 if (status) {
1692 dev_err(&port->dev,
1693 "%s - failed submitting write urb, error %d\n",
1694 __func__, status);
1695 count = status;
1696 goto error;
1697 } else {
1698 spin_lock_irqsave(&priv->tx_lock, flags);
1699 priv->tx_outstanding_bytes += count;
1700 priv->tx_bytes += count;
1701 spin_unlock_irqrestore(&priv->tx_lock, flags);
1702 }
1703
1704 /* we are done with this urb, so let the host driver
1705 * really free it when it is finished with it */
1706 usb_free_urb(urb);
1707
1708 dbg("%s write returning: %d", __func__, count);
1709 return count;
1710 error:
1711 usb_free_urb(urb);
1712 error_no_urb:
1713 kfree(buffer);
1714 error_no_buffer:
1715 spin_lock_irqsave(&priv->tx_lock, flags);
1716 priv->tx_outstanding_urbs--;
1717 spin_unlock_irqrestore(&priv->tx_lock, flags);
1718 return count;
1719 } /* ftdi_write */
1720
1721
1722 /* This function may get called when the device is closed */
1723
1724 static void ftdi_write_bulk_callback(struct urb *urb)
1725 {
1726 unsigned long flags;
1727 struct usb_serial_port *port = urb->context;
1728 struct ftdi_private *priv;
1729 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1730 unsigned long countback;
1731 int status = urb->status;
1732
1733 /* free up the transfer buffer, as usb_free_urb() does not do this */
1734 kfree(urb->transfer_buffer);
1735
1736 dbg("%s - port %d", __func__, port->number);
1737
1738 if (status) {
1739 dbg("nonzero write bulk status received: %d", status);
1740 return;
1741 }
1742
1743 priv = usb_get_serial_port_data(port);
1744 if (!priv) {
1745 dbg("%s - bad port private data pointer - exiting", __func__);
1746 return;
1747 }
1748 /* account for transferred data */
1749 countback = urb->actual_length;
1750 data_offset = priv->write_offset;
1751 if (data_offset > 0) {
1752 /* Subtract the control bytes */
1753 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
1754 }
1755 spin_lock_irqsave(&priv->tx_lock, flags);
1756 --priv->tx_outstanding_urbs;
1757 priv->tx_outstanding_bytes -= countback;
1758 spin_unlock_irqrestore(&priv->tx_lock, flags);
1759
1760 usb_serial_port_softint(port);
1761 } /* ftdi_write_bulk_callback */
1762
1763
1764 static int ftdi_write_room(struct tty_struct *tty)
1765 {
1766 struct usb_serial_port *port = tty->driver_data;
1767 struct ftdi_private *priv = usb_get_serial_port_data(port);
1768 int room;
1769 unsigned long flags;
1770
1771 dbg("%s - port %d", __func__, port->number);
1772
1773 spin_lock_irqsave(&priv->tx_lock, flags);
1774 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1775 /*
1776 * We really can take anything the user throws at us
1777 * but let's pick a nice big number to tell the tty
1778 * layer that we have lots of free space
1779 */
1780 room = 2048;
1781 } else {
1782 room = 0;
1783 }
1784 spin_unlock_irqrestore(&priv->tx_lock, flags);
1785 return room;
1786 }
1787
1788 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1789 {
1790 struct usb_serial_port *port = tty->driver_data;
1791 struct ftdi_private *priv = usb_get_serial_port_data(port);
1792 int buffered;
1793 unsigned long flags;
1794
1795 dbg("%s - port %d", __func__, port->number);
1796
1797 spin_lock_irqsave(&priv->tx_lock, flags);
1798 buffered = (int)priv->tx_outstanding_bytes;
1799 spin_unlock_irqrestore(&priv->tx_lock, flags);
1800 if (buffered < 0) {
1801 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1802 __func__);
1803 buffered = 0;
1804 }
1805 return buffered;
1806 }
1807
1808 static void ftdi_read_bulk_callback(struct urb *urb)
1809 {
1810 struct usb_serial_port *port = urb->context;
1811 struct tty_struct *tty;
1812 struct ftdi_private *priv;
1813 unsigned long countread;
1814 unsigned long flags;
1815 int status = urb->status;
1816
1817 if (urb->number_of_packets > 0) {
1818 dev_err(&port->dev, "%s transfer_buffer_length %d "
1819 "actual_length %d number of packets %d\n", __func__,
1820 urb->transfer_buffer_length,
1821 urb->actual_length, urb->number_of_packets);
1822 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1823 urb->transfer_flags);
1824 }
1825
1826 dbg("%s - port %d", __func__, port->number);
1827
1828 if (port->port.count <= 0)
1829 return;
1830
1831 tty = tty_port_tty_get(&port->port);
1832 if (!tty) {
1833 dbg("%s - bad tty pointer - exiting", __func__);
1834 return;
1835 }
1836
1837 priv = usb_get_serial_port_data(port);
1838 if (!priv) {
1839 dbg("%s - bad port private data pointer - exiting", __func__);
1840 goto out;
1841 }
1842
1843 if (urb != port->read_urb)
1844 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1845
1846 if (status) {
1847 /* This will happen at close every time so it is a dbg not an
1848 err */
1849 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
1850 goto out;
1851 }
1852
1853 /* count data bytes, but not status bytes */
1854 countread = urb->actual_length;
1855 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
1856 spin_lock_irqsave(&priv->rx_lock, flags);
1857 priv->rx_bytes += countread;
1858 spin_unlock_irqrestore(&priv->rx_lock, flags);
1859
1860 ftdi_process_read(&priv->rx_work.work);
1861 out:
1862 tty_kref_put(tty);
1863 } /* ftdi_read_bulk_callback */
1864
1865
1866 static void ftdi_process_read(struct work_struct *work)
1867 { /* ftdi_process_read */
1868 struct ftdi_private *priv =
1869 container_of(work, struct ftdi_private, rx_work.work);
1870 struct usb_serial_port *port = priv->port;
1871 struct urb *urb;
1872 struct tty_struct *tty;
1873 char error_flag;
1874 unsigned char *data;
1875
1876 int i;
1877 int result;
1878 int need_flip;
1879 int packet_offset;
1880 unsigned long flags;
1881
1882 dbg("%s - port %d", __func__, port->number);
1883
1884 if (port->port.count <= 0)
1885 return;
1886
1887 tty = tty_port_tty_get(&port->port);
1888 if (!tty) {
1889 dbg("%s - bad tty pointer - exiting", __func__);
1890 return;
1891 }
1892
1893 priv = usb_get_serial_port_data(port);
1894 if (!priv) {
1895 dbg("%s - bad port private data pointer - exiting", __func__);
1896 goto out;
1897 }
1898
1899 urb = port->read_urb;
1900 if (!urb) {
1901 dbg("%s - bad read_urb pointer - exiting", __func__);
1902 goto out;
1903 }
1904
1905 data = urb->transfer_buffer;
1906
1907 if (priv->rx_processed) {
1908 dbg("%s - already processed: %d bytes, %d remain", __func__,
1909 priv->rx_processed,
1910 urb->actual_length - priv->rx_processed);
1911 } else {
1912 /* The first two bytes of every read packet are status */
1913 if (urb->actual_length > 2)
1914 usb_serial_debug_data(debug, &port->dev, __func__,
1915 urb->actual_length, data);
1916 else
1917 dbg("Status only: %03oo %03oo", data[0], data[1]);
1918 }
1919
1920
1921 /* TO DO -- check for hung up line and handle appropriately: */
1922 /* send hangup */
1923 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1924 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1925
1926 need_flip = 0;
1927 for (packet_offset = priv->rx_processed;
1928 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1929 int length;
1930
1931 /* Compare new line status to the old one, signal if different/
1932 N.B. packet may be processed more than once, but differences
1933 are only processed once. */
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 length = min_t(u32, PKTSZ, urb->actual_length-packet_offset)-2;
1944 if (length < 0) {
1945 dev_err(&port->dev, "%s - bad packet length: %d\n",
1946 __func__, length+2);
1947 length = 0;
1948 }
1949
1950 if (priv->rx_flags & THROTTLED) {
1951 dbg("%s - throttled", __func__);
1952 break;
1953 }
1954 if (tty_buffer_request_room(tty, length) < length) {
1955 /* break out & wait for throttling/unthrottling to
1956 happen */
1957 dbg("%s - receive room low", __func__);
1958 break;
1959 }
1960
1961 /* Handle errors and break */
1962 error_flag = TTY_NORMAL;
1963 /* Although the device uses a bitmask and hence can have
1964 multiple errors on a packet - the order here sets the
1965 priority the error is returned to the tty layer */
1966
1967 if (data[packet_offset+1] & FTDI_RS_OE) {
1968 error_flag = TTY_OVERRUN;
1969 dbg("OVERRRUN error");
1970 }
1971 if (data[packet_offset+1] & FTDI_RS_BI) {
1972 error_flag = TTY_BREAK;
1973 dbg("BREAK received");
1974 }
1975 if (data[packet_offset+1] & FTDI_RS_PE) {
1976 error_flag = TTY_PARITY;
1977 dbg("PARITY error");
1978 }
1979 if (data[packet_offset+1] & FTDI_RS_FE) {
1980 error_flag = TTY_FRAME;
1981 dbg("FRAMING error");
1982 }
1983 if (length > 0) {
1984 for (i = 2; i < length+2; i++) {
1985 /* Note that the error flag is duplicated for
1986 every character received since we don't know
1987 which character it applied to */
1988 tty_insert_flip_char(tty,
1989 data[packet_offset + i], error_flag);
1990 }
1991 need_flip = 1;
1992 }
1993
1994 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1995 /* if a parity error is detected you get status packets forever
1996 until a character is sent without a parity error.
1997 This doesn't work well since the application receives a
1998 never ending stream of bad data - even though new data
1999 hasn't been sent. Therefore I (bill) have taken this out.
2000 However - this might make sense for framing errors and so on
2001 so I am leaving the code in for now.
2002 */
2003 else {
2004 if (error_flag != TTY_NORMAL) {
2005 dbg("error_flag is not normal");
2006 /* In this case it is just status - if that is
2007 an error send a bad character */
2008 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
2009 tty_flip_buffer_push(tty);
2010 tty_insert_flip_char(tty, 0xff, error_flag);
2011 need_flip = 1;
2012 }
2013 }
2014 #endif
2015 } /* "for(packet_offset=0..." */
2016
2017 /* Low latency */
2018 if (need_flip)
2019 tty_flip_buffer_push(tty);
2020
2021 if (packet_offset < urb->actual_length) {
2022 /* not completely processed - record progress */
2023 priv->rx_processed = packet_offset;
2024 dbg("%s - incomplete, %d bytes processed, %d remain",
2025 __func__, packet_offset,
2026 urb->actual_length - packet_offset);
2027 /* check if we were throttled while processing */
2028 spin_lock_irqsave(&priv->rx_lock, flags);
2029 if (priv->rx_flags & THROTTLED) {
2030 priv->rx_flags |= ACTUALLY_THROTTLED;
2031 spin_unlock_irqrestore(&priv->rx_lock, flags);
2032 dbg("%s - deferring remainder until unthrottled",
2033 __func__);
2034 goto out;
2035 }
2036 spin_unlock_irqrestore(&priv->rx_lock, flags);
2037 /* if the port is closed stop trying to read */
2038 if (port->port.count > 0)
2039 /* delay processing of remainder */
2040 schedule_delayed_work(&priv->rx_work, 1);
2041 else
2042 dbg("%s - port is closed", __func__);
2043 goto out;
2044 }
2045
2046 /* urb is completely processed */
2047 priv->rx_processed = 0;
2048
2049 /* if the port is closed stop trying to read */
2050 if (port->port.count > 0) {
2051 /* Continue trying to always read */
2052 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
2053 usb_rcvbulkpipe(port->serial->dev,
2054 port->bulk_in_endpointAddress),
2055 port->read_urb->transfer_buffer,
2056 port->read_urb->transfer_buffer_length,
2057 ftdi_read_bulk_callback, port);
2058
2059 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2060 if (result)
2061 dev_err(&port->dev,
2062 "%s - failed resubmitting read urb, error %d\n",
2063 __func__, result);
2064 }
2065 out:
2066 tty_kref_put(tty);
2067 } /* ftdi_process_read */
2068
2069
2070 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2071 {
2072 struct usb_serial_port *port = tty->driver_data;
2073 struct ftdi_private *priv = usb_get_serial_port_data(port);
2074 __u16 urb_value = 0;
2075 char buf[1];
2076
2077 /* break_state = -1 to turn on break, and 0 to turn off break */
2078 /* see drivers/char/tty_io.c to see it used */
2079 /* last_set_data_urb_value NEVER has the break bit set in it */
2080
2081 if (break_state)
2082 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2083 else
2084 urb_value = priv->last_set_data_urb_value;
2085
2086 if (usb_control_msg(port->serial->dev,
2087 usb_sndctrlpipe(port->serial->dev, 0),
2088 FTDI_SIO_SET_DATA_REQUEST,
2089 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2090 urb_value , priv->interface,
2091 buf, 0, WDR_TIMEOUT) < 0) {
2092 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2093 "(state was %d)\n", __func__, break_state);
2094 }
2095
2096 dbg("%s break state is %d - urb is %d", __func__,
2097 break_state, urb_value);
2098
2099 }
2100
2101
2102 /* old_termios contains the original termios settings and tty->termios contains
2103 * the new setting to be used
2104 * WARNING: set_termios calls this with old_termios in kernel space
2105 */
2106
2107 static void ftdi_set_termios(struct tty_struct *tty,
2108 struct usb_serial_port *port, struct ktermios *old_termios)
2109 { /* ftdi_termios */
2110 struct usb_device *dev = port->serial->dev;
2111 struct ftdi_private *priv = usb_get_serial_port_data(port);
2112 struct ktermios *termios = tty->termios;
2113 unsigned int cflag = termios->c_cflag;
2114 __u16 urb_value; /* will hold the new flags */
2115 char buf[1]; /* Perhaps I should dynamically alloc this? */
2116
2117 /* Added for xon/xoff support */
2118 unsigned int iflag = termios->c_iflag;
2119 unsigned char vstop;
2120 unsigned char vstart;
2121
2122 dbg("%s", __func__);
2123
2124 /* Force baud rate if this device requires it, unless it is set to
2125 B0. */
2126 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2127 dbg("%s: forcing baud rate for this device", __func__);
2128 tty_encode_baud_rate(tty, priv->force_baud,
2129 priv->force_baud);
2130 }
2131
2132 /* Force RTS-CTS if this device requires it. */
2133 if (priv->force_rtscts) {
2134 dbg("%s: forcing rtscts for this device", __func__);
2135 termios->c_cflag |= CRTSCTS;
2136 }
2137
2138 cflag = termios->c_cflag;
2139
2140 /* FIXME -For this cut I don't care if the line is really changing or
2141 not - so just do the change regardless - should be able to
2142 compare old_termios and tty->termios */
2143 /* NOTE These routines can get interrupted by
2144 ftdi_sio_read_bulk_callback - need to examine what this means -
2145 don't see any problems yet */
2146
2147 /* Set number of data bits, parity, stop bits */
2148
2149 termios->c_cflag &= ~CMSPAR;
2150
2151 urb_value = 0;
2152 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2153 FTDI_SIO_SET_DATA_STOP_BITS_1);
2154 urb_value |= (cflag & PARENB ?
2155 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2156 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2157 FTDI_SIO_SET_DATA_PARITY_NONE);
2158 if (cflag & CSIZE) {
2159 switch (cflag & CSIZE) {
2160 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2161 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2162 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2163 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2164 default:
2165 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
2166 }
2167 }
2168
2169 /* This is needed by the break command since it uses the same command
2170 - but is or'ed with this value */
2171 priv->last_set_data_urb_value = urb_value;
2172
2173 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2174 FTDI_SIO_SET_DATA_REQUEST,
2175 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2176 urb_value , priv->interface,
2177 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
2178 dev_err(&port->dev, "%s FAILED to set "
2179 "databits/stopbits/parity\n", __func__);
2180 }
2181
2182 /* Now do the baudrate */
2183 if ((cflag & CBAUD) == B0) {
2184 /* Disable flow control */
2185 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2186 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2187 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2188 0, priv->interface,
2189 buf, 0, WDR_TIMEOUT) < 0) {
2190 dev_err(&port->dev,
2191 "%s error from disable flowcontrol urb\n",
2192 __func__);
2193 }
2194 /* Drop RTS and DTR */
2195 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2196 } else {
2197 /* set the baudrate determined before */
2198 if (change_speed(tty, port))
2199 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2200 __func__);
2201 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2202 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2203 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2204 }
2205
2206 /* Set flow control */
2207 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2208 if (cflag & CRTSCTS) {
2209 dbg("%s Setting to CRTSCTS flow control", __func__);
2210 if (usb_control_msg(dev,
2211 usb_sndctrlpipe(dev, 0),
2212 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2213 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2214 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2215 buf, 0, WDR_TIMEOUT) < 0) {
2216 dev_err(&port->dev,
2217 "urb failed to set to rts/cts flow control\n");
2218 }
2219
2220 } else {
2221 /*
2222 * Xon/Xoff code
2223 *
2224 * Check the IXOFF status in the iflag component of the
2225 * termios structure. If IXOFF is not set, the pre-xon/xoff
2226 * code is executed.
2227 */
2228 if (iflag & IXOFF) {
2229 dbg("%s request to enable xonxoff iflag=%04x",
2230 __func__, iflag);
2231 /* Try to enable the XON/XOFF on the ftdi_sio
2232 * Set the vstart and vstop -- could have been done up
2233 * above where a lot of other dereferencing is done but
2234 * that would be very inefficient as vstart and vstop
2235 * are not always needed.
2236 */
2237 vstart = termios->c_cc[VSTART];
2238 vstop = termios->c_cc[VSTOP];
2239 urb_value = (vstop << 8) | (vstart);
2240
2241 if (usb_control_msg(dev,
2242 usb_sndctrlpipe(dev, 0),
2243 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2244 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2245 urb_value , (FTDI_SIO_XON_XOFF_HS
2246 | priv->interface),
2247 buf, 0, WDR_TIMEOUT) < 0) {
2248 dev_err(&port->dev, "urb failed to set to "
2249 "xon/xoff flow control\n");
2250 }
2251 } else {
2252 /* else clause to only run if cflag ! CRTSCTS and iflag
2253 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2254 * stack - not by device */
2255 dbg("%s Turning off hardware flow control", __func__);
2256 if (usb_control_msg(dev,
2257 usb_sndctrlpipe(dev, 0),
2258 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2259 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2260 0, priv->interface,
2261 buf, 0, WDR_TIMEOUT) < 0) {
2262 dev_err(&port->dev,
2263 "urb failed to clear flow control\n");
2264 }
2265 }
2266
2267 }
2268 return;
2269 }
2270
2271 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2272 {
2273 struct usb_serial_port *port = tty->driver_data;
2274 struct ftdi_private *priv = usb_get_serial_port_data(port);
2275 unsigned char buf[2];
2276 int ret;
2277
2278 dbg("%s TIOCMGET", __func__);
2279 switch (priv->chip_type) {
2280 case SIO:
2281 /* Request the status from the device */
2282 ret = usb_control_msg(port->serial->dev,
2283 usb_rcvctrlpipe(port->serial->dev, 0),
2284 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2285 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2286 0, 0,
2287 buf, 1, WDR_TIMEOUT);
2288 if (ret < 0)
2289 return ret;
2290 break;
2291 case FT8U232AM:
2292 case FT232BM:
2293 case FT2232C:
2294 case FT232RL:
2295 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2296 value) - in the same format as the data returned from the in
2297 point */
2298 ret = usb_control_msg(port->serial->dev,
2299 usb_rcvctrlpipe(port->serial->dev, 0),
2300 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2301 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2302 0, priv->interface,
2303 buf, 2, WDR_TIMEOUT);
2304 if (ret < 0)
2305 return ret;
2306 break;
2307 default:
2308 return -EFAULT;
2309 }
2310
2311 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2312 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2313 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2314 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2315 priv->last_dtr_rts;
2316 }
2317
2318 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2319 unsigned int set, unsigned int clear)
2320 {
2321 struct usb_serial_port *port = tty->driver_data;
2322 dbg("%s TIOCMSET", __func__);
2323 return update_mctrl(port, set, clear);
2324 }
2325
2326
2327 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2328 unsigned int cmd, unsigned long arg)
2329 {
2330 struct usb_serial_port *port = tty->driver_data;
2331 struct ftdi_private *priv = usb_get_serial_port_data(port);
2332
2333 dbg("%s cmd 0x%04x", __func__, cmd);
2334
2335 /* Based on code from acm.c and others */
2336 switch (cmd) {
2337
2338 case TIOCGSERIAL: /* gets serial port data */
2339 return get_serial_info(port,
2340 (struct serial_struct __user *) arg);
2341
2342 case TIOCSSERIAL: /* sets serial port data */
2343 return set_serial_info(tty, port,
2344 (struct serial_struct __user *) arg);
2345
2346 /*
2347 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2348 * - mask passed in arg for lines of interest
2349 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2350 * Caller should use TIOCGICOUNT to see which one it was.
2351 *
2352 * This code is borrowed from linux/drivers/char/serial.c
2353 */
2354 case TIOCMIWAIT:
2355 while (priv != NULL) {
2356 interruptible_sleep_on(&priv->delta_msr_wait);
2357 /* see if a signal did it */
2358 if (signal_pending(current))
2359 return -ERESTARTSYS;
2360 else {
2361 char diff = priv->diff_status;
2362
2363 if (diff == 0)
2364 return -EIO; /* no change => error */
2365
2366 /* Consume all events */
2367 priv->diff_status = 0;
2368
2369 /* Return 0 if caller wanted to know about
2370 these bits */
2371 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2372 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2373 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2374 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2375 return 0;
2376 }
2377 /*
2378 * Otherwise caller can't care less about what
2379 * happened,and so we continue to wait for more
2380 * events.
2381 */
2382 }
2383 }
2384 return 0;
2385 default:
2386 break;
2387 }
2388 /* This is not necessarily an error - turns out the higher layers
2389 * will do some ioctls themselves (see comment above)
2390 */
2391 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2392 return -ENOIOCTLCMD;
2393 }
2394
2395 static void ftdi_throttle(struct tty_struct *tty)
2396 {
2397 struct usb_serial_port *port = tty->driver_data;
2398 struct ftdi_private *priv = usb_get_serial_port_data(port);
2399 unsigned long flags;
2400
2401 dbg("%s - port %d", __func__, port->number);
2402
2403 spin_lock_irqsave(&priv->rx_lock, flags);
2404 priv->rx_flags |= THROTTLED;
2405 spin_unlock_irqrestore(&priv->rx_lock, flags);
2406 }
2407
2408
2409 static void ftdi_unthrottle(struct tty_struct *tty)
2410 {
2411 struct usb_serial_port *port = tty->driver_data;
2412 struct ftdi_private *priv = usb_get_serial_port_data(port);
2413 int actually_throttled;
2414 unsigned long flags;
2415
2416 dbg("%s - port %d", __func__, port->number);
2417
2418 spin_lock_irqsave(&priv->rx_lock, flags);
2419 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2420 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2421 spin_unlock_irqrestore(&priv->rx_lock, flags);
2422
2423 if (actually_throttled)
2424 schedule_delayed_work(&priv->rx_work, 0);
2425 }
2426
2427 static int __init ftdi_init(void)
2428 {
2429 int retval;
2430
2431 dbg("%s", __func__);
2432 if (vendor > 0 && product > 0) {
2433 /* Add user specified VID/PID to reserved element of table. */
2434 int i;
2435 for (i = 0; id_table_combined[i].idVendor; i++)
2436 ;
2437 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2438 id_table_combined[i].idVendor = vendor;
2439 id_table_combined[i].idProduct = product;
2440 }
2441 retval = usb_serial_register(&ftdi_sio_device);
2442 if (retval)
2443 goto failed_sio_register;
2444 retval = usb_register(&ftdi_driver);
2445 if (retval)
2446 goto failed_usb_register;
2447
2448 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2449 DRIVER_DESC "\n");
2450 return 0;
2451 failed_usb_register:
2452 usb_serial_deregister(&ftdi_sio_device);
2453 failed_sio_register:
2454 return retval;
2455 }
2456
2457
2458 static void __exit ftdi_exit(void)
2459 {
2460
2461 dbg("%s", __func__);
2462
2463 usb_deregister(&ftdi_driver);
2464 usb_serial_deregister(&ftdi_sio_device);
2465
2466 }
2467
2468
2469 module_init(ftdi_init);
2470 module_exit(ftdi_exit);
2471
2472 MODULE_AUTHOR(DRIVER_AUTHOR);
2473 MODULE_DESCRIPTION(DRIVER_DESC);
2474 MODULE_LICENSE("GPL");
2475
2476 module_param(debug, bool, S_IRUGO | S_IWUSR);
2477 MODULE_PARM_DESC(debug, "Debug enabled or not");
2478 module_param(vendor, ushort, 0);
2479 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2480 __MODULE_STRING(FTDI_VID)")");
2481 module_param(product, ushort, 0);
2482 MODULE_PARM_DESC(product, "User specified product ID");
2483
Support for the Chinese Samsung S3C2440 based development boards