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USB: ftdi: support NDI devices
[linux-2.6/mini2440.git] / drivers / usb / serial / ftdi_sio.c
blob88eb5878914ae50261f321212e99310d4d5e104d
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 "v1.5.0"
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, FT2232H or FT4232H port interface
86 (0 for FT232/245) */
87
88 speed_t force_baud; /* if non-zero, force the baud rate to
89 this value */
90 int force_rtscts; /* if non-zero, force RTS-CTS to always
91 be enabled */
92
93 unsigned int latency; /* latency setting in use */
94 spinlock_t tx_lock; /* spinlock for transmit state */
95 unsigned long tx_bytes;
96 unsigned long tx_outstanding_bytes;
97 unsigned long tx_outstanding_urbs;
98 unsigned short max_packet_size;
99 };
100
101 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
102 struct ftdi_sio_quirk {
103 int (*probe)(struct usb_serial *);
104 /* Special settings for probed ports. */
105 void (*port_probe)(struct ftdi_private *);
106 };
107
108 static int ftdi_jtag_probe(struct usb_serial *serial);
109 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
110 static int ftdi_NDI_device_setup(struct usb_serial *serial);
111 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
112 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
113
114 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
115 .probe = ftdi_jtag_probe,
116 };
117
118 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
119 .probe = ftdi_mtxorb_hack_setup,
120 };
121
122 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
123 .probe = ftdi_NDI_device_setup,
124 };
125
126 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
127 .port_probe = ftdi_USB_UIRT_setup,
128 };
129
130 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
131 .port_probe = ftdi_HE_TIRA1_setup,
132 };
133
134 /*
135 * The 8U232AM has the same API as the sio except for:
136 * - it can support MUCH higher baudrates; up to:
137 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
138 * o 230400 at 12MHz
139 * so .. 8U232AM's baudrate setting codes are different
140 * - it has a two byte status code.
141 * - it returns characters every 16ms (the FTDI does it every 40ms)
142 *
143 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
144 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
145 * combinations in both tables.
146 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
147 * but I don't know if those ever went into mass production. [Ian Abbott]
148 */
149
150
151
152 static struct usb_device_id id_table_combined [] = {
153 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
168 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
169 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
170 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
178 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
179 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
181 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
190 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
191 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
194 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
195 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
198 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
199 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
240 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
246 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
286 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
288 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
290 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
292 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
294 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
296 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
463 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
464 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
465 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
466 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
467 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
514 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
515 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
516 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
518 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
519 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
520 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
521 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
522 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
523 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
524 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
555 /*
556 * Due to many user requests for multiple ELV devices we enable
557 * them by default.
558 */
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
578 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
579 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
580 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
581 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
582 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
583 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
584 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
586 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
587 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
588 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
589 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
590 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
591 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
592 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
593 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
594 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
595 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
596 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
597 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
598 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
599 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
600 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
601 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
602 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
603 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
604 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
606 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
607 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
608 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
609 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
610 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
611 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
612 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
613 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
614 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
615 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
617 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
619 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
621 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
622 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
623 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
626 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
627 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
628 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
629 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
630 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
631 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
632 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
633 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
634 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
635 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
636 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
637 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
638 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
639 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
640 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
641 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
642 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
643 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
644 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
645 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
646 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
647 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
648 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
649 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
650 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
651 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
652 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
653 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
654 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
655 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
656 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
657 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
658 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
659 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
660 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
661 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
662 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
663 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
664 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
665 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
666 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
667 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
668 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
669 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
670 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
671 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
672 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
673 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
674 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
675 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
676 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
677 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
678 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
679 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
680 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
681 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
682 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
683 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
684 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
685 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
686 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
687 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
688 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
689 { USB_DEVICE(ATMEL_VID, STK541_PID) },
690 { USB_DEVICE(DE_VID, STB_PID) },
691 { USB_DEVICE(DE_VID, WHT_PID) },
692 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
693 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
694 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
695 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
696 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
697 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
698 { }, /* Optional parameter entry */
699 { } /* Terminating entry */
700 };
701
702 MODULE_DEVICE_TABLE(usb, id_table_combined);
703
704 static struct usb_driver ftdi_driver = {
705 .name = "ftdi_sio",
706 .probe = usb_serial_probe,
707 .disconnect = usb_serial_disconnect,
708 .id_table = id_table_combined,
709 .no_dynamic_id = 1,
710 };
711
712 static const char *ftdi_chip_name[] = {
713 [SIO] = "SIO", /* the serial part of FT8U100AX */
714 [FT8U232AM] = "FT8U232AM",
715 [FT232BM] = "FT232BM",
716 [FT2232C] = "FT2232C",
717 [FT232RL] = "FT232RL",
718 [FT2232H] = "FT2232H",
719 [FT4232H] = "FT4232H"
720 };
721
722
723 /* Constants for read urb and write urb */
724 #define BUFSZ 512
725
726 /* rx_flags */
727 #define THROTTLED 0x01
728 #define ACTUALLY_THROTTLED 0x02
729
730 /* Used for TIOCMIWAIT */
731 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
732 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
733 /* End TIOCMIWAIT */
734
735 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
736 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
737
738 /* function prototypes for a FTDI serial converter */
739 static int ftdi_sio_probe(struct usb_serial *serial,
740 const struct usb_device_id *id);
741 static int ftdi_sio_port_probe(struct usb_serial_port *port);
742 static int ftdi_sio_port_remove(struct usb_serial_port *port);
743 static int ftdi_open(struct tty_struct *tty,
744 struct usb_serial_port *port, struct file *filp);
745 static void ftdi_close(struct usb_serial_port *port);
746 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
747 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
748 const unsigned char *buf, int count);
749 static int ftdi_write_room(struct tty_struct *tty);
750 static int ftdi_chars_in_buffer(struct tty_struct *tty);
751 static void ftdi_write_bulk_callback(struct urb *urb);
752 static void ftdi_read_bulk_callback(struct urb *urb);
753 static void ftdi_process_read(struct work_struct *work);
754 static void ftdi_set_termios(struct tty_struct *tty,
755 struct usb_serial_port *port, struct ktermios *old);
756 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
757 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
758 unsigned int set, unsigned int clear);
759 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
760 unsigned int cmd, unsigned long arg);
761 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
762 static void ftdi_throttle(struct tty_struct *tty);
763 static void ftdi_unthrottle(struct tty_struct *tty);
764
765 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
766 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
767 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
768 static __u32 ftdi_232bm_baud_to_divisor(int baud);
769 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
770 static __u32 ftdi_2232h_baud_to_divisor(int baud);
771
772 static struct usb_serial_driver ftdi_sio_device = {
773 .driver = {
774 .owner = THIS_MODULE,
775 .name = "ftdi_sio",
776 },
777 .description = "FTDI USB Serial Device",
778 .usb_driver = &ftdi_driver ,
779 .id_table = id_table_combined,
780 .num_ports = 1,
781 .probe = ftdi_sio_probe,
782 .port_probe = ftdi_sio_port_probe,
783 .port_remove = ftdi_sio_port_remove,
784 .open = ftdi_open,
785 .close = ftdi_close,
786 .dtr_rts = ftdi_dtr_rts,
787 .throttle = ftdi_throttle,
788 .unthrottle = ftdi_unthrottle,
789 .write = ftdi_write,
790 .write_room = ftdi_write_room,
791 .chars_in_buffer = ftdi_chars_in_buffer,
792 .read_bulk_callback = ftdi_read_bulk_callback,
793 .write_bulk_callback = ftdi_write_bulk_callback,
794 .tiocmget = ftdi_tiocmget,
795 .tiocmset = ftdi_tiocmset,
796 .ioctl = ftdi_ioctl,
797 .set_termios = ftdi_set_termios,
798 .break_ctl = ftdi_break_ctl,
799 };
800
801
802 #define WDR_TIMEOUT 5000 /* default urb timeout */
803 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
804
805 /* High and low are for DTR, RTS etc etc */
806 #define HIGH 1
807 #define LOW 0
808
809 /* number of outstanding urbs to prevent userspace DoS from happening */
810 #define URB_UPPER_LIMIT 42
811
812 /*
813 * ***************************************************************************
814 * Utility functions
815 * ***************************************************************************
816 */
817
818 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
819 {
820 unsigned short int divisor;
821 /* divisor shifted 3 bits to the left */
822 int divisor3 = base / 2 / baud;
823 if ((divisor3 & 0x7) == 7)
824 divisor3++; /* round x.7/8 up to x+1 */
825 divisor = divisor3 >> 3;
826 divisor3 &= 0x7;
827 if (divisor3 == 1)
828 divisor |= 0xc000;
829 else if (divisor3 >= 4)
830 divisor |= 0x4000;
831 else if (divisor3 != 0)
832 divisor |= 0x8000;
833 else if (divisor == 1)
834 divisor = 0; /* special case for maximum baud rate */
835 return divisor;
836 }
837
838 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
839 {
840 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
841 }
842
843 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
844 {
845 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
846 __u32 divisor;
847 /* divisor shifted 3 bits to the left */
848 int divisor3 = base / 2 / baud;
849 divisor = divisor3 >> 3;
850 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
851 /* Deal with special cases for highest baud rates. */
852 if (divisor == 1)
853 divisor = 0;
854 else if (divisor == 0x4001)
855 divisor = 1;
856 return divisor;
857 }
858
859 static __u32 ftdi_232bm_baud_to_divisor(int baud)
860 {
861 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
862 }
863
864 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
865 {
866 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
867 __u32 divisor;
868 int divisor3;
869
870 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
871 divisor3 = (base / 10 / baud) * 8;
872
873 divisor = divisor3 >> 3;
874 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
875 /* Deal with special cases for highest baud rates. */
876 if (divisor == 1)
877 divisor = 0;
878 else if (divisor == 0x4001)
879 divisor = 1;
880 /*
881 * Set this bit to turn off a divide by 2.5 on baud rate generator
882 * This enables baud rates up to 12Mbaud but cannot reach below 1200
883 * baud with this bit set
884 */
885 divisor |= 0x00020000;
886 return divisor;
887 }
888
889 static __u32 ftdi_2232h_baud_to_divisor(int baud)
890 {
891 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
892 }
893
894 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
895 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
896
897 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
898 unsigned int clear)
899 {
900 struct ftdi_private *priv = usb_get_serial_port_data(port);
901 char *buf;
902 unsigned urb_value;
903 int rv;
904
905 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
906 dbg("%s - DTR|RTS not being set|cleared", __func__);
907 return 0; /* no change */
908 }
909
910 buf = kmalloc(1, GFP_NOIO);
911 if (!buf)
912 return -ENOMEM;
913
914 clear &= ~set; /* 'set' takes precedence over 'clear' */
915 urb_value = 0;
916 if (clear & TIOCM_DTR)
917 urb_value |= FTDI_SIO_SET_DTR_LOW;
918 if (clear & TIOCM_RTS)
919 urb_value |= FTDI_SIO_SET_RTS_LOW;
920 if (set & TIOCM_DTR)
921 urb_value |= FTDI_SIO_SET_DTR_HIGH;
922 if (set & TIOCM_RTS)
923 urb_value |= FTDI_SIO_SET_RTS_HIGH;
924 rv = usb_control_msg(port->serial->dev,
925 usb_sndctrlpipe(port->serial->dev, 0),
926 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
927 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
928 urb_value, priv->interface,
929 buf, 0, WDR_TIMEOUT);
930
931 kfree(buf);
932 if (rv < 0) {
933 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
934 __func__,
935 (set & TIOCM_DTR) ? "HIGH" :
936 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
937 (set & TIOCM_RTS) ? "HIGH" :
938 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
939 } else {
940 dbg("%s - DTR %s, RTS %s", __func__,
941 (set & TIOCM_DTR) ? "HIGH" :
942 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
943 (set & TIOCM_RTS) ? "HIGH" :
944 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
945 /* FIXME: locking on last_dtr_rts */
946 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
947 }
948 return rv;
949 }
950
951
952 static __u32 get_ftdi_divisor(struct tty_struct *tty,
953 struct usb_serial_port *port)
954 { /* get_ftdi_divisor */
955 struct ftdi_private *priv = usb_get_serial_port_data(port);
956 __u32 div_value = 0;
957 int div_okay = 1;
958 int baud;
959
960 /*
961 * The logic involved in setting the baudrate can be cleanly split into
962 * 3 steps.
963 * 1. Standard baud rates are set in tty->termios->c_cflag
964 * 2. If these are not enough, you can set any speed using alt_speed as
965 * follows:
966 * - set tty->termios->c_cflag speed to B38400
967 * - set your real speed in tty->alt_speed; it gets ignored when
968 * alt_speed==0, (or)
969 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
970 * follows:
971 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
972 * this just sets alt_speed to (HI: 57600, VHI: 115200,
973 * SHI: 230400, WARP: 460800)
974 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
975 * 3. You can also set baud rate by setting custom divisor as follows
976 * - set tty->termios->c_cflag speed to B38400
977 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
978 * follows:
979 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
980 * o custom_divisor set to baud_base / your_new_baudrate
981 * ** Step 3 is done courtesy of code borrowed from serial.c
982 * I should really spend some time and separate + move this common
983 * code to serial.c, it is replicated in nearly every serial driver
984 * you see.
985 */
986
987 /* 1. Get the baud rate from the tty settings, this observes
988 alt_speed hack */
989
990 baud = tty_get_baud_rate(tty);
991 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
992
993 /* 2. Observe async-compatible custom_divisor hack, update baudrate
994 if needed */
995
996 if (baud == 38400 &&
997 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
998 (priv->custom_divisor)) {
999 baud = priv->baud_base / priv->custom_divisor;
1000 dbg("%s - custom divisor %d sets baud rate to %d",
1001 __func__, priv->custom_divisor, baud);
1002 }
1003
1004 /* 3. Convert baudrate to device-specific divisor */
1005
1006 if (!baud)
1007 baud = 9600;
1008 switch (priv->chip_type) {
1009 case SIO: /* SIO chip */
1010 switch (baud) {
1011 case 300: div_value = ftdi_sio_b300; break;
1012 case 600: div_value = ftdi_sio_b600; break;
1013 case 1200: div_value = ftdi_sio_b1200; break;
1014 case 2400: div_value = ftdi_sio_b2400; break;
1015 case 4800: div_value = ftdi_sio_b4800; break;
1016 case 9600: div_value = ftdi_sio_b9600; break;
1017 case 19200: div_value = ftdi_sio_b19200; break;
1018 case 38400: div_value = ftdi_sio_b38400; break;
1019 case 57600: div_value = ftdi_sio_b57600; break;
1020 case 115200: div_value = ftdi_sio_b115200; break;
1021 } /* baud */
1022 if (div_value == 0) {
1023 dbg("%s - Baudrate (%d) requested is not supported",
1024 __func__, baud);
1025 div_value = ftdi_sio_b9600;
1026 baud = 9600;
1027 div_okay = 0;
1028 }
1029 break;
1030 case FT8U232AM: /* 8U232AM chip */
1031 if (baud <= 3000000) {
1032 div_value = ftdi_232am_baud_to_divisor(baud);
1033 } else {
1034 dbg("%s - Baud rate too high!", __func__);
1035 baud = 9600;
1036 div_value = ftdi_232am_baud_to_divisor(9600);
1037 div_okay = 0;
1038 }
1039 break;
1040 case FT232BM: /* FT232BM chip */
1041 case FT2232C: /* FT2232C chip */
1042 case FT232RL:
1043 if (baud <= 3000000) {
1044 __u16 product_id = le16_to_cpu(
1045 port->serial->dev->descriptor.idProduct);
1046 if (((FTDI_NDI_HUC_PID == product_id) ||
1047 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1048 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1049 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1050 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1051 (baud == 19200)) {
1052 baud = 1200000;
1053 }
1054 div_value = ftdi_232bm_baud_to_divisor(baud);
1055 } else {
1056 dbg("%s - Baud rate too high!", __func__);
1057 div_value = ftdi_232bm_baud_to_divisor(9600);
1058 div_okay = 0;
1059 baud = 9600;
1060 }
1061 break;
1062 case FT2232H: /* FT2232H chip */
1063 case FT4232H: /* FT4232H chip */
1064 if ((baud <= 12000000) & (baud >= 1200)) {
1065 div_value = ftdi_2232h_baud_to_divisor(baud);
1066 } else if (baud < 1200) {
1067 div_value = ftdi_232bm_baud_to_divisor(baud);
1068 } else {
1069 dbg("%s - Baud rate too high!", __func__);
1070 div_value = ftdi_232bm_baud_to_divisor(9600);
1071 div_okay = 0;
1072 baud = 9600;
1073 }
1074 break;
1075 } /* priv->chip_type */
1076
1077 if (div_okay) {
1078 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1079 __func__, baud, (unsigned long)div_value,
1080 ftdi_chip_name[priv->chip_type]);
1081 }
1082
1083 tty_encode_baud_rate(tty, baud, baud);
1084 return div_value;
1085 }
1086
1087 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1088 {
1089 struct ftdi_private *priv = usb_get_serial_port_data(port);
1090 char *buf;
1091 __u16 urb_value;
1092 __u16 urb_index;
1093 __u32 urb_index_value;
1094 int rv;
1095
1096 buf = kmalloc(1, GFP_NOIO);
1097 if (!buf)
1098 return -ENOMEM;
1099
1100 urb_index_value = get_ftdi_divisor(tty, port);
1101 urb_value = (__u16)urb_index_value;
1102 urb_index = (__u16)(urb_index_value >> 16);
1103 if (priv->interface) { /* FT2232C */
1104 urb_index = (__u16)((urb_index << 8) | priv->interface);
1105 }
1106
1107 rv = usb_control_msg(port->serial->dev,
1108 usb_sndctrlpipe(port->serial->dev, 0),
1109 FTDI_SIO_SET_BAUDRATE_REQUEST,
1110 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1111 urb_value, urb_index,
1112 buf, 0, WDR_SHORT_TIMEOUT);
1113
1114 kfree(buf);
1115 return rv;
1116 }
1117
1118 static int write_latency_timer(struct usb_serial_port *port)
1119 {
1120 struct ftdi_private *priv = usb_get_serial_port_data(port);
1121 struct usb_device *udev = port->serial->dev;
1122 char buf[1];
1123 int rv = 0;
1124 int l = priv->latency;
1125
1126 if (priv->flags & ASYNC_LOW_LATENCY)
1127 l = 1;
1128
1129 dbg("%s: setting latency timer = %i", __func__, l);
1130
1131 rv = usb_control_msg(udev,
1132 usb_sndctrlpipe(udev, 0),
1133 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1134 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1135 l, priv->interface,
1136 buf, 0, WDR_TIMEOUT);
1137
1138 if (rv < 0)
1139 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1140 return rv;
1141 }
1142
1143 static int read_latency_timer(struct usb_serial_port *port)
1144 {
1145 struct ftdi_private *priv = usb_get_serial_port_data(port);
1146 struct usb_device *udev = port->serial->dev;
1147 unsigned short latency = 0;
1148 int rv = 0;
1149
1150
1151 dbg("%s", __func__);
1152
1153 rv = usb_control_msg(udev,
1154 usb_rcvctrlpipe(udev, 0),
1155 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1156 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1157 0, priv->interface,
1158 (char *) &latency, 1, WDR_TIMEOUT);
1159
1160 if (rv < 0) {
1161 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1162 return -EIO;
1163 }
1164 return latency;
1165 }
1166
1167 static int get_serial_info(struct usb_serial_port *port,
1168 struct serial_struct __user *retinfo)
1169 {
1170 struct ftdi_private *priv = usb_get_serial_port_data(port);
1171 struct serial_struct tmp;
1172
1173 if (!retinfo)
1174 return -EFAULT;
1175 memset(&tmp, 0, sizeof(tmp));
1176 tmp.flags = priv->flags;
1177 tmp.baud_base = priv->baud_base;
1178 tmp.custom_divisor = priv->custom_divisor;
1179 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1180 return -EFAULT;
1181 return 0;
1182 } /* get_serial_info */
1183
1184
1185 static int set_serial_info(struct tty_struct *tty,
1186 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1187 { /* set_serial_info */
1188 struct ftdi_private *priv = usb_get_serial_port_data(port);
1189 struct serial_struct new_serial;
1190 struct ftdi_private old_priv;
1191
1192 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1193 return -EFAULT;
1194
1195 lock_kernel();
1196 old_priv = *priv;
1197
1198 /* Do error checking and permission checking */
1199
1200 if (!capable(CAP_SYS_ADMIN)) {
1201 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1202 (priv->flags & ~ASYNC_USR_MASK))) {
1203 unlock_kernel();
1204 return -EPERM;
1205 }
1206 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1207 (new_serial.flags & ASYNC_USR_MASK));
1208 priv->custom_divisor = new_serial.custom_divisor;
1209 goto check_and_exit;
1210 }
1211
1212 if ((new_serial.baud_base != priv->baud_base) &&
1213 (new_serial.baud_base < 9600)) {
1214 unlock_kernel();
1215 return -EINVAL;
1216 }
1217
1218 /* Make the changes - these are privileged changes! */
1219
1220 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1221 (new_serial.flags & ASYNC_FLAGS));
1222 priv->custom_divisor = new_serial.custom_divisor;
1223
1224 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1225 write_latency_timer(port);
1226
1227 check_and_exit:
1228 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1229 (priv->flags & ASYNC_SPD_MASK)) {
1230 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1231 tty->alt_speed = 57600;
1232 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1233 tty->alt_speed = 115200;
1234 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1235 tty->alt_speed = 230400;
1236 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1237 tty->alt_speed = 460800;
1238 else
1239 tty->alt_speed = 0;
1240 }
1241 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1242 (priv->flags & ASYNC_SPD_MASK)) ||
1243 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1244 (old_priv.custom_divisor != priv->custom_divisor))) {
1245 unlock_kernel();
1246 change_speed(tty, port);
1247 }
1248 else
1249 unlock_kernel();
1250 return 0;
1251
1252 } /* set_serial_info */
1253
1254
1255 /* Determine type of FTDI chip based on USB config and descriptor. */
1256 static void ftdi_determine_type(struct usb_serial_port *port)
1257 {
1258 struct ftdi_private *priv = usb_get_serial_port_data(port);
1259 struct usb_serial *serial = port->serial;
1260 struct usb_device *udev = serial->dev;
1261 unsigned version;
1262 unsigned interfaces;
1263
1264 /* Assume it is not the original SIO device for now. */
1265 priv->baud_base = 48000000 / 2;
1266 priv->write_offset = 0;
1267
1268 version = le16_to_cpu(udev->descriptor.bcdDevice);
1269 interfaces = udev->actconfig->desc.bNumInterfaces;
1270 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1271 version, interfaces);
1272 if (interfaces > 1) {
1273 int inter;
1274
1275 /* Multiple interfaces.*/
1276 if (version == 0x0800) {
1277 priv->chip_type = FT4232H;
1278 /* Hi-speed - baud clock runs at 120MHz */
1279 priv->baud_base = 120000000 / 2;
1280 } else if (version == 0x0700) {
1281 priv->chip_type = FT2232H;
1282 /* Hi-speed - baud clock runs at 120MHz */
1283 priv->baud_base = 120000000 / 2;
1284 } else
1285 priv->chip_type = FT2232C;
1286
1287 /* Determine interface code. */
1288 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1289 if (inter == 0) {
1290 priv->interface = INTERFACE_A;
1291 } else if (inter == 1) {
1292 priv->interface = INTERFACE_B;
1293 } else if (inter == 2) {
1294 priv->interface = INTERFACE_C;
1295 } else if (inter == 3) {
1296 priv->interface = INTERFACE_D;
1297 }
1298 /* BM-type devices have a bug where bcdDevice gets set
1299 * to 0x200 when iSerialNumber is 0. */
1300 if (version < 0x500) {
1301 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1302 __func__);
1303 }
1304 } else if (version < 0x200) {
1305 /* Old device. Assume its the original SIO. */
1306 priv->chip_type = SIO;
1307 priv->baud_base = 12000000 / 16;
1308 priv->write_offset = 1;
1309 } else if (version < 0x400) {
1310 /* Assume its an FT8U232AM (or FT8U245AM) */
1311 /* (It might be a BM because of the iSerialNumber bug,
1312 * but it will still work as an AM device.) */
1313 priv->chip_type = FT8U232AM;
1314 } else if (version < 0x600) {
1315 /* Assume its an FT232BM (or FT245BM) */
1316 priv->chip_type = FT232BM;
1317 } else {
1318 /* Assume its an FT232R */
1319 priv->chip_type = FT232RL;
1320 }
1321 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1322 }
1323
1324
1325 /* Determine the maximum packet size for the device. This depends on the chip
1326 * type and the USB host capabilities. The value should be obtained from the
1327 * device descriptor as the chip will use the appropriate values for the host.*/
1328 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1329 {
1330 struct ftdi_private *priv = usb_get_serial_port_data(port);
1331 struct usb_serial *serial = port->serial;
1332 struct usb_device *udev = serial->dev;
1333
1334 struct usb_interface *interface = serial->interface;
1335 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1336
1337 unsigned num_endpoints;
1338 int i = 0;
1339
1340 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1341 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1342
1343 /* NOTE: some customers have programmed FT232R/FT245R devices
1344 * with an endpoint size of 0 - not good. In this case, we
1345 * want to override the endpoint descriptor setting and use a
1346 * value of 64 for wMaxPacketSize */
1347 for (i = 0; i < num_endpoints; i++) {
1348 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1349 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1350 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1351 if (ep_desc->wMaxPacketSize == 0) {
1352 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1353 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1354 }
1355 }
1356
1357 /* set max packet size based on descriptor */
1358 priv->max_packet_size = ep_desc->wMaxPacketSize;
1359
1360 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1361 }
1362
1363
1364 /*
1365 * ***************************************************************************
1366 * Sysfs Attribute
1367 * ***************************************************************************
1368 */
1369
1370 static ssize_t show_latency_timer(struct device *dev,
1371 struct device_attribute *attr, char *buf)
1372 {
1373 struct usb_serial_port *port = to_usb_serial_port(dev);
1374 struct ftdi_private *priv = usb_get_serial_port_data(port);
1375 if (priv->flags & ASYNC_LOW_LATENCY)
1376 return sprintf(buf, "1\n");
1377 else
1378 return sprintf(buf, "%i\n", priv->latency);
1379 }
1380
1381
1382 /* Write a new value of the latency timer, in units of milliseconds. */
1383 static ssize_t store_latency_timer(struct device *dev,
1384 struct device_attribute *attr, const char *valbuf,
1385 size_t count)
1386 {
1387 struct usb_serial_port *port = to_usb_serial_port(dev);
1388 struct ftdi_private *priv = usb_get_serial_port_data(port);
1389 int v = simple_strtoul(valbuf, NULL, 10);
1390 int rv = 0;
1391
1392 priv->latency = v;
1393 rv = write_latency_timer(port);
1394 if (rv < 0)
1395 return -EIO;
1396 return count;
1397 }
1398
1399 /* Write an event character directly to the FTDI register. The ASCII
1400 value is in the low 8 bits, with the enable bit in the 9th bit. */
1401 static ssize_t store_event_char(struct device *dev,
1402 struct device_attribute *attr, const char *valbuf, size_t count)
1403 {
1404 struct usb_serial_port *port = to_usb_serial_port(dev);
1405 struct ftdi_private *priv = usb_get_serial_port_data(port);
1406 struct usb_device *udev = port->serial->dev;
1407 char buf[1];
1408 int v = simple_strtoul(valbuf, NULL, 10);
1409 int rv = 0;
1410
1411 dbg("%s: setting event char = %i", __func__, v);
1412
1413 rv = usb_control_msg(udev,
1414 usb_sndctrlpipe(udev, 0),
1415 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1416 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1417 v, priv->interface,
1418 buf, 0, WDR_TIMEOUT);
1419
1420 if (rv < 0) {
1421 dbg("Unable to write event character: %i", rv);
1422 return -EIO;
1423 }
1424
1425 return count;
1426 }
1427
1428 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1429 store_latency_timer);
1430 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1431
1432 static int create_sysfs_attrs(struct usb_serial_port *port)
1433 {
1434 struct ftdi_private *priv = usb_get_serial_port_data(port);
1435 int retval = 0;
1436
1437 dbg("%s", __func__);
1438
1439 /* XXX I've no idea if the original SIO supports the event_char
1440 * sysfs parameter, so I'm playing it safe. */
1441 if (priv->chip_type != SIO) {
1442 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1443 retval = device_create_file(&port->dev, &dev_attr_event_char);
1444 if ((!retval) &&
1445 (priv->chip_type == FT232BM ||
1446 priv->chip_type == FT2232C ||
1447 priv->chip_type == FT232RL ||
1448 priv->chip_type == FT2232H ||
1449 priv->chip_type == FT4232H)) {
1450 retval = device_create_file(&port->dev,
1451 &dev_attr_latency_timer);
1452 }
1453 }
1454 return retval;
1455 }
1456
1457 static void remove_sysfs_attrs(struct usb_serial_port *port)
1458 {
1459 struct ftdi_private *priv = usb_get_serial_port_data(port);
1460
1461 dbg("%s", __func__);
1462
1463 /* XXX see create_sysfs_attrs */
1464 if (priv->chip_type != SIO) {
1465 device_remove_file(&port->dev, &dev_attr_event_char);
1466 if (priv->chip_type == FT232BM ||
1467 priv->chip_type == FT2232C ||
1468 priv->chip_type == FT232RL ||
1469 priv->chip_type == FT2232H ||
1470 priv->chip_type == FT4232H) {
1471 device_remove_file(&port->dev, &dev_attr_latency_timer);
1472 }
1473 }
1474
1475 }
1476
1477 /*
1478 * ***************************************************************************
1479 * FTDI driver specific functions
1480 * ***************************************************************************
1481 */
1482
1483 /* Probe function to check for special devices */
1484 static int ftdi_sio_probe(struct usb_serial *serial,
1485 const struct usb_device_id *id)
1486 {
1487 struct ftdi_sio_quirk *quirk =
1488 (struct ftdi_sio_quirk *)id->driver_info;
1489
1490 if (quirk && quirk->probe) {
1491 int ret = quirk->probe(serial);
1492 if (ret != 0)
1493 return ret;
1494 }
1495
1496 usb_set_serial_data(serial, (void *)id->driver_info);
1497
1498 return 0;
1499 }
1500
1501 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1502 {
1503 struct ftdi_private *priv;
1504 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1505
1506
1507 dbg("%s", __func__);
1508
1509 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1510 if (!priv) {
1511 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1512 sizeof(struct ftdi_private));
1513 return -ENOMEM;
1514 }
1515
1516 kref_init(&priv->kref);
1517 spin_lock_init(&priv->rx_lock);
1518 spin_lock_init(&priv->tx_lock);
1519 init_waitqueue_head(&priv->delta_msr_wait);
1520 /* This will push the characters through immediately rather
1521 than queue a task to deliver them */
1522 priv->flags = ASYNC_LOW_LATENCY;
1523
1524 if (quirk && quirk->port_probe)
1525 quirk->port_probe(priv);
1526
1527 /* Increase the size of read buffers */
1528 kfree(port->bulk_in_buffer);
1529 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1530 if (!port->bulk_in_buffer) {
1531 kfree(priv);
1532 return -ENOMEM;
1533 }
1534 if (port->read_urb) {
1535 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1536 port->read_urb->transfer_buffer_length = BUFSZ;
1537 }
1538
1539 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1540 priv->port = port;
1541
1542 /* Free port's existing write urb and transfer buffer. */
1543 if (port->write_urb) {
1544 usb_free_urb(port->write_urb);
1545 port->write_urb = NULL;
1546 }
1547 kfree(port->bulk_out_buffer);
1548 port->bulk_out_buffer = NULL;
1549
1550 usb_set_serial_port_data(port, priv);
1551
1552 ftdi_determine_type(port);
1553 ftdi_set_max_packet_size(port);
1554 read_latency_timer(port);
1555 create_sysfs_attrs(port);
1556 return 0;
1557 }
1558
1559 /* Setup for the USB-UIRT device, which requires hardwired
1560 * baudrate (38400 gets mapped to 312500) */
1561 /* Called from usbserial:serial_probe */
1562 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1563 {
1564 dbg("%s", __func__);
1565
1566 priv->flags |= ASYNC_SPD_CUST;
1567 priv->custom_divisor = 77;
1568 priv->force_baud = 38400;
1569 } /* ftdi_USB_UIRT_setup */
1570
1571 /* Setup for the HE-TIRA1 device, which requires hardwired
1572 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1573
1574 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1575 {
1576 dbg("%s", __func__);
1577
1578 priv->flags |= ASYNC_SPD_CUST;
1579 priv->custom_divisor = 240;
1580 priv->force_baud = 38400;
1581 priv->force_rtscts = 1;
1582 } /* ftdi_HE_TIRA1_setup */
1583
1584 /*
1585 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1586 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1587 */
1588 static int ndi_latency_timer = 1;
1589
1590 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1591 * baudrate (19200 gets mapped to 1200000).
1592 *
1593 * Called from usbserial:serial_probe.
1594 */
1595 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1596 {
1597 struct usb_device *udev = serial->dev;
1598 int latency = ndi_latency_timer;
1599 int rv = 0;
1600 char buf[1];
1601
1602 if (latency == 0)
1603 latency = 1;
1604 if (latency > 99)
1605 latency = 99;
1606
1607 dbg("%s setting NDI device latency to %d", __func__, latency);
1608 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1609
1610 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1611 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1612 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1613 latency, 0, buf, 0, WDR_TIMEOUT);
1614 return 0;
1615 }
1616
1617 /*
1618 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1619 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1620 * userspace using openocd.
1621 */
1622 static int ftdi_jtag_probe(struct usb_serial *serial)
1623 {
1624 struct usb_device *udev = serial->dev;
1625 struct usb_interface *interface = serial->interface;
1626
1627 dbg("%s", __func__);
1628
1629 if (interface == udev->actconfig->interface[0]) {
1630 dev_info(&udev->dev,
1631 "Ignoring serial port reserved for JTAG\n");
1632 return -ENODEV;
1633 }
1634
1635 return 0;
1636 }
1637
1638 /*
1639 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1640 * We have to correct it if we want to read from it.
1641 */
1642 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1643 {
1644 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1645 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1646
1647 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1648 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1649 dev_info(&serial->dev->dev,
1650 "Fixing invalid wMaxPacketSize on read pipe\n");
1651 }
1652
1653 return 0;
1654 }
1655
1656 static void ftdi_sio_priv_release(struct kref *k)
1657 {
1658 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1659
1660 kfree(priv);
1661 }
1662
1663 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1664 {
1665 struct ftdi_private *priv = usb_get_serial_port_data(port);
1666
1667 dbg("%s", __func__);
1668
1669 remove_sysfs_attrs(port);
1670
1671 kref_put(&priv->kref, ftdi_sio_priv_release);
1672
1673 return 0;
1674 }
1675
1676 static int ftdi_open(struct tty_struct *tty,
1677 struct usb_serial_port *port, struct file *filp)
1678 { /* ftdi_open */
1679 struct usb_device *dev = port->serial->dev;
1680 struct ftdi_private *priv = usb_get_serial_port_data(port);
1681 unsigned long flags;
1682
1683 int result = 0;
1684 char buf[1]; /* Needed for the usb_control_msg I think */
1685
1686 dbg("%s", __func__);
1687
1688 spin_lock_irqsave(&priv->tx_lock, flags);
1689 priv->tx_bytes = 0;
1690 spin_unlock_irqrestore(&priv->tx_lock, flags);
1691 spin_lock_irqsave(&priv->rx_lock, flags);
1692 priv->rx_bytes = 0;
1693 spin_unlock_irqrestore(&priv->rx_lock, flags);
1694
1695 if (tty)
1696 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1697
1698 write_latency_timer(port);
1699
1700 /* No error checking for this (will get errors later anyway) */
1701 /* See ftdi_sio.h for description of what is reset */
1702 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1703 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1704 FTDI_SIO_RESET_SIO,
1705 priv->interface, buf, 0, WDR_TIMEOUT);
1706
1707 /* Termios defaults are set by usb_serial_init. We don't change
1708 port->tty->termios - this would lose speed settings, etc.
1709 This is same behaviour as serial.c/rs_open() - Kuba */
1710
1711 /* ftdi_set_termios will send usb control messages */
1712 if (tty)
1713 ftdi_set_termios(tty, port, tty->termios);
1714
1715 /* Not throttled */
1716 spin_lock_irqsave(&priv->rx_lock, flags);
1717 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1718 spin_unlock_irqrestore(&priv->rx_lock, flags);
1719
1720 /* Start reading from the device */
1721 priv->rx_processed = 0;
1722 usb_fill_bulk_urb(port->read_urb, dev,
1723 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1724 port->read_urb->transfer_buffer,
1725 port->read_urb->transfer_buffer_length,
1726 ftdi_read_bulk_callback, port);
1727 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1728 if (result)
1729 dev_err(&port->dev,
1730 "%s - failed submitting read urb, error %d\n",
1731 __func__, result);
1732 else
1733 kref_get(&priv->kref);
1734
1735 return result;
1736 } /* ftdi_open */
1737
1738
1739 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1740 {
1741 struct ftdi_private *priv = usb_get_serial_port_data(port);
1742 char buf[1];
1743
1744 mutex_lock(&port->serial->disc_mutex);
1745 if (!port->serial->disconnected) {
1746 /* Disable flow control */
1747 if (!on && usb_control_msg(port->serial->dev,
1748 usb_sndctrlpipe(port->serial->dev, 0),
1749 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1750 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1751 0, priv->interface, buf, 0,
1752 WDR_TIMEOUT) < 0) {
1753 dev_err(&port->dev, "error from flowcontrol urb\n");
1754 }
1755 /* drop RTS and DTR */
1756 if (on)
1757 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1758 else
1759 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1760 }
1761 mutex_unlock(&port->serial->disc_mutex);
1762 }
1763
1764 /*
1765 * usbserial:__serial_close only calls ftdi_close if the point is open
1766 *
1767 * This only gets called when it is the last close
1768 *
1769 *
1770 */
1771
1772 static void ftdi_close(struct usb_serial_port *port)
1773 { /* ftdi_close */
1774 struct ftdi_private *priv = usb_get_serial_port_data(port);
1775
1776 dbg("%s", __func__);
1777
1778
1779 /* cancel any scheduled reading */
1780 cancel_delayed_work_sync(&priv->rx_work);
1781
1782 /* shutdown our bulk read */
1783 usb_kill_urb(port->read_urb);
1784 kref_put(&priv->kref, ftdi_sio_priv_release);
1785 } /* ftdi_close */
1786
1787
1788
1789 /* The SIO requires the first byte to have:
1790 * B0 1
1791 * B1 0
1792 * B2..7 length of message excluding byte 0
1793 *
1794 * The new devices do not require this byte
1795 */
1796 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1797 const unsigned char *buf, int count)
1798 { /* ftdi_write */
1799 struct ftdi_private *priv = usb_get_serial_port_data(port);
1800 struct urb *urb;
1801 unsigned char *buffer;
1802 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1803 int status;
1804 int transfer_size;
1805 unsigned long flags;
1806
1807 dbg("%s port %d, %d bytes", __func__, port->number, count);
1808
1809 if (count == 0) {
1810 dbg("write request of 0 bytes");
1811 return 0;
1812 }
1813 spin_lock_irqsave(&priv->tx_lock, flags);
1814 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1815 spin_unlock_irqrestore(&priv->tx_lock, flags);
1816 dbg("%s - write limit hit\n", __func__);
1817 return 0;
1818 }
1819 priv->tx_outstanding_urbs++;
1820 spin_unlock_irqrestore(&priv->tx_lock, flags);
1821
1822 data_offset = priv->write_offset;
1823 dbg("data_offset set to %d", data_offset);
1824
1825 /* Determine total transfer size */
1826 transfer_size = count;
1827 if (data_offset > 0) {
1828 /* Original sio needs control bytes too... */
1829 transfer_size += (data_offset *
1830 ((count + (priv->max_packet_size - 1 - data_offset)) /
1831 (priv->max_packet_size - data_offset)));
1832 }
1833
1834 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1835 if (!buffer) {
1836 dev_err(&port->dev,
1837 "%s ran out of kernel memory for urb ...\n", __func__);
1838 count = -ENOMEM;
1839 goto error_no_buffer;
1840 }
1841
1842 urb = usb_alloc_urb(0, GFP_ATOMIC);
1843 if (!urb) {
1844 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1845 count = -ENOMEM;
1846 goto error_no_urb;
1847 }
1848
1849 /* Copy data */
1850 if (data_offset > 0) {
1851 /* Original sio requires control byte at start of
1852 each packet. */
1853 int user_pktsz = priv->max_packet_size - data_offset;
1854 int todo = count;
1855 unsigned char *first_byte = buffer;
1856 const unsigned char *current_position = buf;
1857
1858 while (todo > 0) {
1859 if (user_pktsz > todo)
1860 user_pktsz = todo;
1861 /* Write the control byte at the front of the packet*/
1862 *first_byte = 1 | ((user_pktsz) << 2);
1863 /* Copy data for packet */
1864 memcpy(first_byte + data_offset,
1865 current_position, user_pktsz);
1866 first_byte += user_pktsz + data_offset;
1867 current_position += user_pktsz;
1868 todo -= user_pktsz;
1869 }
1870 } else {
1871 /* No control byte required. */
1872 /* Copy in the data to send */
1873 memcpy(buffer, buf, count);
1874 }
1875
1876 usb_serial_debug_data(debug, &port->dev, __func__,
1877 transfer_size, buffer);
1878
1879 /* fill the buffer and send it */
1880 usb_fill_bulk_urb(urb, port->serial->dev,
1881 usb_sndbulkpipe(port->serial->dev,
1882 port->bulk_out_endpointAddress),
1883 buffer, transfer_size,
1884 ftdi_write_bulk_callback, port);
1885
1886 status = usb_submit_urb(urb, GFP_ATOMIC);
1887 if (status) {
1888 dev_err(&port->dev,
1889 "%s - failed submitting write urb, error %d\n",
1890 __func__, status);
1891 count = status;
1892 goto error;
1893 } else {
1894 spin_lock_irqsave(&priv->tx_lock, flags);
1895 priv->tx_outstanding_bytes += count;
1896 priv->tx_bytes += count;
1897 spin_unlock_irqrestore(&priv->tx_lock, flags);
1898 }
1899
1900 /* we are done with this urb, so let the host driver
1901 * really free it when it is finished with it */
1902 usb_free_urb(urb);
1903
1904 dbg("%s write returning: %d", __func__, count);
1905 return count;
1906 error:
1907 usb_free_urb(urb);
1908 error_no_urb:
1909 kfree(buffer);
1910 error_no_buffer:
1911 spin_lock_irqsave(&priv->tx_lock, flags);
1912 priv->tx_outstanding_urbs--;
1913 spin_unlock_irqrestore(&priv->tx_lock, flags);
1914 return count;
1915 } /* ftdi_write */
1916
1917
1918 /* This function may get called when the device is closed */
1919
1920 static void ftdi_write_bulk_callback(struct urb *urb)
1921 {
1922 unsigned long flags;
1923 struct usb_serial_port *port = urb->context;
1924 struct ftdi_private *priv;
1925 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1926 unsigned long countback;
1927 int status = urb->status;
1928
1929 /* free up the transfer buffer, as usb_free_urb() does not do this */
1930 kfree(urb->transfer_buffer);
1931
1932 dbg("%s - port %d", __func__, port->number);
1933
1934 priv = usb_get_serial_port_data(port);
1935 if (!priv) {
1936 dbg("%s - bad port private data pointer - exiting", __func__);
1937 return;
1938 }
1939 /* account for transferred data */
1940 countback = urb->actual_length;
1941 data_offset = priv->write_offset;
1942 if (data_offset > 0) {
1943 /* Subtract the control bytes */
1944 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
1945 }
1946 spin_lock_irqsave(&priv->tx_lock, flags);
1947 --priv->tx_outstanding_urbs;
1948 priv->tx_outstanding_bytes -= countback;
1949 spin_unlock_irqrestore(&priv->tx_lock, flags);
1950
1951 if (status) {
1952 dbg("nonzero write bulk status received: %d", status);
1953 return;
1954 }
1955
1956 usb_serial_port_softint(port);
1957 } /* ftdi_write_bulk_callback */
1958
1959
1960 static int ftdi_write_room(struct tty_struct *tty)
1961 {
1962 struct usb_serial_port *port = tty->driver_data;
1963 struct ftdi_private *priv = usb_get_serial_port_data(port);
1964 int room;
1965 unsigned long flags;
1966
1967 dbg("%s - port %d", __func__, port->number);
1968
1969 spin_lock_irqsave(&priv->tx_lock, flags);
1970 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1971 /*
1972 * We really can take anything the user throws at us
1973 * but let's pick a nice big number to tell the tty
1974 * layer that we have lots of free space
1975 */
1976 room = 2048;
1977 } else {
1978 room = 0;
1979 }
1980 spin_unlock_irqrestore(&priv->tx_lock, flags);
1981 return room;
1982 }
1983
1984 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1985 {
1986 struct usb_serial_port *port = tty->driver_data;
1987 struct ftdi_private *priv = usb_get_serial_port_data(port);
1988 int buffered;
1989 unsigned long flags;
1990
1991 dbg("%s - port %d", __func__, port->number);
1992
1993 spin_lock_irqsave(&priv->tx_lock, flags);
1994 buffered = (int)priv->tx_outstanding_bytes;
1995 spin_unlock_irqrestore(&priv->tx_lock, flags);
1996 if (buffered < 0) {
1997 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1998 __func__);
1999 buffered = 0;
2000 }
2001 return buffered;
2002 }
2003
2004 static void ftdi_read_bulk_callback(struct urb *urb)
2005 {
2006 struct usb_serial_port *port = urb->context;
2007 struct tty_struct *tty;
2008 struct ftdi_private *priv;
2009 unsigned long countread;
2010 unsigned long flags;
2011 int status = urb->status;
2012
2013 if (urb->number_of_packets > 0) {
2014 dev_err(&port->dev, "%s transfer_buffer_length %d "
2015 "actual_length %d number of packets %d\n", __func__,
2016 urb->transfer_buffer_length,
2017 urb->actual_length, urb->number_of_packets);
2018 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
2019 urb->transfer_flags);
2020 }
2021
2022 dbg("%s - port %d", __func__, port->number);
2023
2024 if (port->port.count <= 0)
2025 return;
2026
2027 tty = tty_port_tty_get(&port->port);
2028 if (!tty) {
2029 dbg("%s - bad tty pointer - exiting", __func__);
2030 return;
2031 }
2032
2033 priv = usb_get_serial_port_data(port);
2034 if (!priv) {
2035 dbg("%s - bad port private data pointer - exiting", __func__);
2036 goto out;
2037 }
2038
2039 if (urb != port->read_urb)
2040 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
2041
2042 if (status) {
2043 /* This will happen at close every time so it is a dbg not an
2044 err */
2045 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
2046 goto out;
2047 }
2048
2049 /* count data bytes, but not status bytes */
2050 countread = urb->actual_length;
2051 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size);
2052 spin_lock_irqsave(&priv->rx_lock, flags);
2053 priv->rx_bytes += countread;
2054 spin_unlock_irqrestore(&priv->rx_lock, flags);
2055
2056 ftdi_process_read(&priv->rx_work.work);
2057 out:
2058 tty_kref_put(tty);
2059 } /* ftdi_read_bulk_callback */
2060
2061
2062 static void ftdi_process_read(struct work_struct *work)
2063 { /* ftdi_process_read */
2064 struct ftdi_private *priv =
2065 container_of(work, struct ftdi_private, rx_work.work);
2066 struct usb_serial_port *port = priv->port;
2067 struct urb *urb;
2068 struct tty_struct *tty;
2069 char error_flag;
2070 unsigned char *data;
2071
2072 int i;
2073 int result;
2074 int need_flip;
2075 int packet_offset;
2076 unsigned long flags;
2077
2078 dbg("%s - port %d", __func__, port->number);
2079
2080 if (port->port.count <= 0)
2081 return;
2082
2083 tty = tty_port_tty_get(&port->port);
2084 if (!tty) {
2085 dbg("%s - bad tty pointer - exiting", __func__);
2086 return;
2087 }
2088
2089 priv = usb_get_serial_port_data(port);
2090 if (!priv) {
2091 dbg("%s - bad port private data pointer - exiting", __func__);
2092 goto out;
2093 }
2094
2095 urb = port->read_urb;
2096 if (!urb) {
2097 dbg("%s - bad read_urb pointer - exiting", __func__);
2098 goto out;
2099 }
2100
2101 data = urb->transfer_buffer;
2102
2103 if (priv->rx_processed) {
2104 dbg("%s - already processed: %d bytes, %d remain", __func__,
2105 priv->rx_processed,
2106 urb->actual_length - priv->rx_processed);
2107 } else {
2108 /* The first two bytes of every read packet are status */
2109 if (urb->actual_length > 2)
2110 usb_serial_debug_data(debug, &port->dev, __func__,
2111 urb->actual_length, data);
2112 else
2113 dbg("Status only: %03oo %03oo", data[0], data[1]);
2114 }
2115
2116
2117 /* TO DO -- check for hung up line and handle appropriately: */
2118 /* send hangup */
2119 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
2120 /* if CD is dropped and the line is not CLOCAL then we should hangup */
2121
2122 need_flip = 0;
2123 for (packet_offset = priv->rx_processed;
2124 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) {
2125 int length;
2126
2127 /* Compare new line status to the old one, signal if different/
2128 N.B. packet may be processed more than once, but differences
2129 are only processed once. */
2130 char new_status = data[packet_offset + 0] &
2131 FTDI_STATUS_B0_MASK;
2132 if (new_status != priv->prev_status) {
2133 priv->diff_status |=
2134 new_status ^ priv->prev_status;
2135 wake_up_interruptible(&priv->delta_msr_wait);
2136 priv->prev_status = new_status;
2137 }
2138
2139 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2;
2140 if (length < 0) {
2141 dev_err(&port->dev, "%s - bad packet length: %d\n",
2142 __func__, length+2);
2143 length = 0;
2144 }
2145
2146 if (priv->rx_flags & THROTTLED) {
2147 dbg("%s - throttled", __func__);
2148 break;
2149 }
2150 if (tty_buffer_request_room(tty, length) < length) {
2151 /* break out & wait for throttling/unthrottling to
2152 happen */
2153 dbg("%s - receive room low", __func__);
2154 break;
2155 }
2156
2157 /* Handle errors and break */
2158 error_flag = TTY_NORMAL;
2159 /* Although the device uses a bitmask and hence can have
2160 multiple errors on a packet - the order here sets the
2161 priority the error is returned to the tty layer */
2162
2163 if (data[packet_offset+1] & FTDI_RS_OE) {
2164 error_flag = TTY_OVERRUN;
2165 dbg("OVERRRUN error");
2166 }
2167 if (data[packet_offset+1] & FTDI_RS_BI) {
2168 error_flag = TTY_BREAK;
2169 dbg("BREAK received");
2170 usb_serial_handle_break(port);
2171 }
2172 if (data[packet_offset+1] & FTDI_RS_PE) {
2173 error_flag = TTY_PARITY;
2174 dbg("PARITY error");
2175 }
2176 if (data[packet_offset+1] & FTDI_RS_FE) {
2177 error_flag = TTY_FRAME;
2178 dbg("FRAMING error");
2179 }
2180 if (length > 0) {
2181 for (i = 2; i < length+2; i++) {
2182 /* Note that the error flag is duplicated for
2183 every character received since we don't know
2184 which character it applied to */
2185 if (!usb_serial_handle_sysrq_char(tty, port,
2186 data[packet_offset + i]))
2187 tty_insert_flip_char(tty,
2188 data[packet_offset + i],
2189 error_flag);
2190 }
2191 need_flip = 1;
2192 }
2193
2194 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2195 /* if a parity error is detected you get status packets forever
2196 until a character is sent without a parity error.
2197 This doesn't work well since the application receives a
2198 never ending stream of bad data - even though new data
2199 hasn't been sent. Therefore I (bill) have taken this out.
2200 However - this might make sense for framing errors and so on
2201 so I am leaving the code in for now.
2202 */
2203 else {
2204 if (error_flag != TTY_NORMAL) {
2205 dbg("error_flag is not normal");
2206 /* In this case it is just status - if that is
2207 an error send a bad character */
2208 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
2209 tty_flip_buffer_push(tty);
2210 tty_insert_flip_char(tty, 0xff, error_flag);
2211 need_flip = 1;
2212 }
2213 }
2214 #endif
2215 } /* "for(packet_offset=0..." */
2216
2217 /* Low latency */
2218 if (need_flip)
2219 tty_flip_buffer_push(tty);
2220
2221 if (packet_offset < urb->actual_length) {
2222 /* not completely processed - record progress */
2223 priv->rx_processed = packet_offset;
2224 dbg("%s - incomplete, %d bytes processed, %d remain",
2225 __func__, packet_offset,
2226 urb->actual_length - packet_offset);
2227 /* check if we were throttled while processing */
2228 spin_lock_irqsave(&priv->rx_lock, flags);
2229 if (priv->rx_flags & THROTTLED) {
2230 priv->rx_flags |= ACTUALLY_THROTTLED;
2231 spin_unlock_irqrestore(&priv->rx_lock, flags);
2232 dbg("%s - deferring remainder until unthrottled",
2233 __func__);
2234 goto out;
2235 }
2236 spin_unlock_irqrestore(&priv->rx_lock, flags);
2237 /* if the port is closed stop trying to read */
2238 if (port->port.count > 0)
2239 /* delay processing of remainder */
2240 schedule_delayed_work(&priv->rx_work, 1);
2241 else
2242 dbg("%s - port is closed", __func__);
2243 goto out;
2244 }
2245
2246 /* urb is completely processed */
2247 priv->rx_processed = 0;
2248
2249 /* if the port is closed stop trying to read */
2250 if (port->port.count > 0) {
2251 /* Continue trying to always read */
2252 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
2253 usb_rcvbulkpipe(port->serial->dev,
2254 port->bulk_in_endpointAddress),
2255 port->read_urb->transfer_buffer,
2256 port->read_urb->transfer_buffer_length,
2257 ftdi_read_bulk_callback, port);
2258
2259 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2260 if (result)
2261 dev_err(&port->dev,
2262 "%s - failed resubmitting read urb, error %d\n",
2263 __func__, result);
2264 }
2265 out:
2266 tty_kref_put(tty);
2267 } /* ftdi_process_read */
2268
2269
2270 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2271 {
2272 struct usb_serial_port *port = tty->driver_data;
2273 struct ftdi_private *priv = usb_get_serial_port_data(port);
2274 __u16 urb_value = 0;
2275 char buf[1];
2276
2277 /* break_state = -1 to turn on break, and 0 to turn off break */
2278 /* see drivers/char/tty_io.c to see it used */
2279 /* last_set_data_urb_value NEVER has the break bit set in it */
2280
2281 if (break_state)
2282 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2283 else
2284 urb_value = priv->last_set_data_urb_value;
2285
2286 if (usb_control_msg(port->serial->dev,
2287 usb_sndctrlpipe(port->serial->dev, 0),
2288 FTDI_SIO_SET_DATA_REQUEST,
2289 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2290 urb_value , priv->interface,
2291 buf, 0, WDR_TIMEOUT) < 0) {
2292 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2293 "(state was %d)\n", __func__, break_state);
2294 }
2295
2296 dbg("%s break state is %d - urb is %d", __func__,
2297 break_state, urb_value);
2298
2299 }
2300
2301
2302 /* old_termios contains the original termios settings and tty->termios contains
2303 * the new setting to be used
2304 * WARNING: set_termios calls this with old_termios in kernel space
2305 */
2306
2307 static void ftdi_set_termios(struct tty_struct *tty,
2308 struct usb_serial_port *port, struct ktermios *old_termios)
2309 { /* ftdi_termios */
2310 struct usb_device *dev = port->serial->dev;
2311 struct ftdi_private *priv = usb_get_serial_port_data(port);
2312 struct ktermios *termios = tty->termios;
2313 unsigned int cflag = termios->c_cflag;
2314 __u16 urb_value; /* will hold the new flags */
2315 char buf[1]; /* Perhaps I should dynamically alloc this? */
2316
2317 /* Added for xon/xoff support */
2318 unsigned int iflag = termios->c_iflag;
2319 unsigned char vstop;
2320 unsigned char vstart;
2321
2322 dbg("%s", __func__);
2323
2324 /* Force baud rate if this device requires it, unless it is set to
2325 B0. */
2326 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2327 dbg("%s: forcing baud rate for this device", __func__);
2328 tty_encode_baud_rate(tty, priv->force_baud,
2329 priv->force_baud);
2330 }
2331
2332 /* Force RTS-CTS if this device requires it. */
2333 if (priv->force_rtscts) {
2334 dbg("%s: forcing rtscts for this device", __func__);
2335 termios->c_cflag |= CRTSCTS;
2336 }
2337
2338 cflag = termios->c_cflag;
2339
2340 /* FIXME -For this cut I don't care if the line is really changing or
2341 not - so just do the change regardless - should be able to
2342 compare old_termios and tty->termios */
2343 /* NOTE These routines can get interrupted by
2344 ftdi_sio_read_bulk_callback - need to examine what this means -
2345 don't see any problems yet */
2346
2347 /* Set number of data bits, parity, stop bits */
2348
2349 termios->c_cflag &= ~CMSPAR;
2350
2351 urb_value = 0;
2352 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2353 FTDI_SIO_SET_DATA_STOP_BITS_1);
2354 urb_value |= (cflag & PARENB ?
2355 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2356 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2357 FTDI_SIO_SET_DATA_PARITY_NONE);
2358 if (cflag & CSIZE) {
2359 switch (cflag & CSIZE) {
2360 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2361 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2362 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2363 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2364 default:
2365 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
2366 }
2367 }
2368
2369 /* This is needed by the break command since it uses the same command
2370 - but is or'ed with this value */
2371 priv->last_set_data_urb_value = urb_value;
2372
2373 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2374 FTDI_SIO_SET_DATA_REQUEST,
2375 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2376 urb_value , priv->interface,
2377 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
2378 dev_err(&port->dev, "%s FAILED to set "
2379 "databits/stopbits/parity\n", __func__);
2380 }
2381
2382 /* Now do the baudrate */
2383 if ((cflag & CBAUD) == B0) {
2384 /* Disable flow control */
2385 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2386 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2387 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2388 0, priv->interface,
2389 buf, 0, WDR_TIMEOUT) < 0) {
2390 dev_err(&port->dev,
2391 "%s error from disable flowcontrol urb\n",
2392 __func__);
2393 }
2394 /* Drop RTS and DTR */
2395 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2396 } else {
2397 /* set the baudrate determined before */
2398 if (change_speed(tty, port))
2399 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2400 __func__);
2401 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2402 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2403 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2404 }
2405
2406 /* Set flow control */
2407 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2408 if (cflag & CRTSCTS) {
2409 dbg("%s Setting to CRTSCTS flow control", __func__);
2410 if (usb_control_msg(dev,
2411 usb_sndctrlpipe(dev, 0),
2412 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2413 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2414 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2415 buf, 0, WDR_TIMEOUT) < 0) {
2416 dev_err(&port->dev,
2417 "urb failed to set to rts/cts flow control\n");
2418 }
2419
2420 } else {
2421 /*
2422 * Xon/Xoff code
2423 *
2424 * Check the IXOFF status in the iflag component of the
2425 * termios structure. If IXOFF is not set, the pre-xon/xoff
2426 * code is executed.
2427 */
2428 if (iflag & IXOFF) {
2429 dbg("%s request to enable xonxoff iflag=%04x",
2430 __func__, iflag);
2431 /* Try to enable the XON/XOFF on the ftdi_sio
2432 * Set the vstart and vstop -- could have been done up
2433 * above where a lot of other dereferencing is done but
2434 * that would be very inefficient as vstart and vstop
2435 * are not always needed.
2436 */
2437 vstart = termios->c_cc[VSTART];
2438 vstop = termios->c_cc[VSTOP];
2439 urb_value = (vstop << 8) | (vstart);
2440
2441 if (usb_control_msg(dev,
2442 usb_sndctrlpipe(dev, 0),
2443 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2444 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2445 urb_value , (FTDI_SIO_XON_XOFF_HS
2446 | priv->interface),
2447 buf, 0, WDR_TIMEOUT) < 0) {
2448 dev_err(&port->dev, "urb failed to set to "
2449 "xon/xoff flow control\n");
2450 }
2451 } else {
2452 /* else clause to only run if cflag ! CRTSCTS and iflag
2453 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2454 * stack - not by device */
2455 dbg("%s Turning off hardware flow control", __func__);
2456 if (usb_control_msg(dev,
2457 usb_sndctrlpipe(dev, 0),
2458 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2459 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2460 0, priv->interface,
2461 buf, 0, WDR_TIMEOUT) < 0) {
2462 dev_err(&port->dev,
2463 "urb failed to clear flow control\n");
2464 }
2465 }
2466
2467 }
2468 return;
2469 }
2470
2471 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2472 {
2473 struct usb_serial_port *port = tty->driver_data;
2474 struct ftdi_private *priv = usb_get_serial_port_data(port);
2475 unsigned char buf[2];
2476 int ret;
2477
2478 dbg("%s TIOCMGET", __func__);
2479 switch (priv->chip_type) {
2480 case SIO:
2481 /* Request the status from the device */
2482 ret = usb_control_msg(port->serial->dev,
2483 usb_rcvctrlpipe(port->serial->dev, 0),
2484 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2485 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2486 0, 0,
2487 buf, 1, WDR_TIMEOUT);
2488 if (ret < 0)
2489 return ret;
2490 break;
2491 case FT8U232AM:
2492 case FT232BM:
2493 case FT2232C:
2494 case FT232RL:
2495 case FT2232H:
2496 case FT4232H:
2497 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2498 value) - in the same format as the data returned from the in
2499 point */
2500 ret = usb_control_msg(port->serial->dev,
2501 usb_rcvctrlpipe(port->serial->dev, 0),
2502 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2503 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2504 0, priv->interface,
2505 buf, 2, WDR_TIMEOUT);
2506 if (ret < 0)
2507 return ret;
2508 break;
2509 default:
2510 return -EFAULT;
2511 }
2512
2513 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2514 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2515 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2516 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2517 priv->last_dtr_rts;
2518 }
2519
2520 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2521 unsigned int set, unsigned int clear)
2522 {
2523 struct usb_serial_port *port = tty->driver_data;
2524 dbg("%s TIOCMSET", __func__);
2525 return update_mctrl(port, set, clear);
2526 }
2527
2528
2529 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2530 unsigned int cmd, unsigned long arg)
2531 {
2532 struct usb_serial_port *port = tty->driver_data;
2533 struct ftdi_private *priv = usb_get_serial_port_data(port);
2534
2535 dbg("%s cmd 0x%04x", __func__, cmd);
2536
2537 /* Based on code from acm.c and others */
2538 switch (cmd) {
2539
2540 case TIOCGSERIAL: /* gets serial port data */
2541 return get_serial_info(port,
2542 (struct serial_struct __user *) arg);
2543
2544 case TIOCSSERIAL: /* sets serial port data */
2545 return set_serial_info(tty, port,
2546 (struct serial_struct __user *) arg);
2547
2548 /*
2549 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2550 * - mask passed in arg for lines of interest
2551 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2552 * Caller should use TIOCGICOUNT to see which one it was.
2553 *
2554 * This code is borrowed from linux/drivers/char/serial.c
2555 */
2556 case TIOCMIWAIT:
2557 while (priv != NULL) {
2558 interruptible_sleep_on(&priv->delta_msr_wait);
2559 /* see if a signal did it */
2560 if (signal_pending(current))
2561 return -ERESTARTSYS;
2562 else {
2563 char diff = priv->diff_status;
2564
2565 if (diff == 0)
2566 return -EIO; /* no change => error */
2567
2568 /* Consume all events */
2569 priv->diff_status = 0;
2570
2571 /* Return 0 if caller wanted to know about
2572 these bits */
2573 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2574 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2575 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2576 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2577 return 0;
2578 }
2579 /*
2580 * Otherwise caller can't care less about what
2581 * happened,and so we continue to wait for more
2582 * events.
2583 */
2584 }
2585 }
2586 return 0;
2587 default:
2588 break;
2589 }
2590 /* This is not necessarily an error - turns out the higher layers
2591 * will do some ioctls themselves (see comment above)
2592 */
2593 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2594 return -ENOIOCTLCMD;
2595 }
2596
2597 static void ftdi_throttle(struct tty_struct *tty)
2598 {
2599 struct usb_serial_port *port = tty->driver_data;
2600 struct ftdi_private *priv = usb_get_serial_port_data(port);
2601 unsigned long flags;
2602
2603 dbg("%s - port %d", __func__, port->number);
2604
2605 spin_lock_irqsave(&priv->rx_lock, flags);
2606 priv->rx_flags |= THROTTLED;
2607 spin_unlock_irqrestore(&priv->rx_lock, flags);
2608 }
2609
2610
2611 static void ftdi_unthrottle(struct tty_struct *tty)
2612 {
2613 struct usb_serial_port *port = tty->driver_data;
2614 struct ftdi_private *priv = usb_get_serial_port_data(port);
2615 int actually_throttled;
2616 unsigned long flags;
2617
2618 dbg("%s - port %d", __func__, port->number);
2619
2620 spin_lock_irqsave(&priv->rx_lock, flags);
2621 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2622 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2623 spin_unlock_irqrestore(&priv->rx_lock, flags);
2624
2625 if (actually_throttled)
2626 schedule_delayed_work(&priv->rx_work, 0);
2627 }
2628
2629 static int __init ftdi_init(void)
2630 {
2631 int retval;
2632
2633 dbg("%s", __func__);
2634 if (vendor > 0 && product > 0) {
2635 /* Add user specified VID/PID to reserved element of table. */
2636 int i;
2637 for (i = 0; id_table_combined[i].idVendor; i++)
2638 ;
2639 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2640 id_table_combined[i].idVendor = vendor;
2641 id_table_combined[i].idProduct = product;
2642 }
2643 retval = usb_serial_register(&ftdi_sio_device);
2644 if (retval)
2645 goto failed_sio_register;
2646 retval = usb_register(&ftdi_driver);
2647 if (retval)
2648 goto failed_usb_register;
2649
2650 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2651 DRIVER_DESC "\n");
2652 return 0;
2653 failed_usb_register:
2654 usb_serial_deregister(&ftdi_sio_device);
2655 failed_sio_register:
2656 return retval;
2657 }
2658
2659
2660 static void __exit ftdi_exit(void)
2661 {
2662
2663 dbg("%s", __func__);
2664
2665 usb_deregister(&ftdi_driver);
2666 usb_serial_deregister(&ftdi_sio_device);
2667
2668 }
2669
2670
2671 module_init(ftdi_init);
2672 module_exit(ftdi_exit);
2673
2674 MODULE_AUTHOR(DRIVER_AUTHOR);
2675 MODULE_DESCRIPTION(DRIVER_DESC);
2676 MODULE_LICENSE("GPL");
2677
2678 module_param(debug, bool, S_IRUGO | S_IWUSR);
2679 MODULE_PARM_DESC(debug, "Debug enabled or not");
2680 module_param(vendor, ushort, 0);
2681 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2682 __MODULE_STRING(FTDI_VID)")");
2683 module_param(product, ushort, 0);
2684 MODULE_PARM_DESC(product, "User specified product ID");
2685
2686 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2687 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
Support for the Chinese Samsung S3C2440 based development boards