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UBIFS: do not use WB_SYNC_HOLD
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / serial / ftdi_sio.c
blobef6cfa5a447feba817ffd8a8a819a8451db1918e
1 /*
2 * USB FTDI SIO driver
3 *
4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
23 *
24 */
25
26 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27 /* Thanx to FTDI for so kindly providing details of the protocol required */
28 /* to talk to the device */
29 /* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
31
32 #include <linux/kernel.h>
33 #include <linux/errno.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36 #include <linux/tty.h>
37 #include <linux/tty_driver.h>
38 #include <linux/tty_flip.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/uaccess.h>
42 #include <linux/usb.h>
43 #include <linux/serial.h>
44 #include <linux/usb/serial.h>
45 #include "ftdi_sio.h"
46
47 /*
48 * Version Information
49 */
50 #define DRIVER_VERSION "v1.4.3"
51 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
52 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
53
54 static int debug;
55 static __u16 vendor = FTDI_VID;
56 static __u16 product;
57
58 struct ftdi_private {
59 ftdi_chip_type_t chip_type;
60 /* type of device, either SIO or FT8U232AM */
61 int baud_base; /* baud base clock for divisor setting */
62 int custom_divisor; /* custom_divisor kludge, this is for
63 baud_base (different from what goes to the
64 chip!) */
65 __u16 last_set_data_urb_value ;
66 /* the last data state set - needed for doing
67 * a break
68 */
69 int write_offset; /* This is the offset in the usb data block to
70 * write the serial data - it varies between
71 * devices
72 */
73 int flags; /* some ASYNC_xxxx flags are supported */
74 unsigned long last_dtr_rts; /* saved modem control outputs */
75 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
76 char prev_status, diff_status; /* Used for TIOCMIWAIT */
77 __u8 rx_flags; /* receive state flags (throttling) */
78 spinlock_t rx_lock; /* spinlock for receive state */
79 struct delayed_work rx_work;
80 struct usb_serial_port *port;
81 int rx_processed;
82 unsigned long rx_bytes;
83
84 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
85
86 speed_t force_baud; /* if non-zero, force the baud rate to
87 this value */
88 int force_rtscts; /* if non-zero, force RTS-CTS to always
89 be enabled */
90
91 spinlock_t tx_lock; /* spinlock for transmit state */
92 unsigned long tx_bytes;
93 unsigned long tx_outstanding_bytes;
94 unsigned long tx_outstanding_urbs;
95 };
96
97 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
98 struct ftdi_sio_quirk {
99 int (*probe)(struct usb_serial *);
100 /* Special settings for probed ports. */
101 void (*port_probe)(struct ftdi_private *);
102 };
103
104 static int ftdi_jtag_probe(struct usb_serial *serial);
105 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
106 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
107 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
108
109 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
110 .probe = ftdi_jtag_probe,
111 };
112
113 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
114 .probe = ftdi_mtxorb_hack_setup,
115 };
116
117 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
118 .port_probe = ftdi_USB_UIRT_setup,
119 };
120
121 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
122 .port_probe = ftdi_HE_TIRA1_setup,
123 };
124
125 /*
126 * The 8U232AM has the same API as the sio except for:
127 * - it can support MUCH higher baudrates; up to:
128 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
129 * o 230400 at 12MHz
130 * so .. 8U232AM's baudrate setting codes are different
131 * - it has a two byte status code.
132 * - it returns characters every 16ms (the FTDI does it every 40ms)
133 *
134 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
135 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
136 * combinations in both tables.
137 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
138 * but I don't know if those ever went into mass production. [Ian Abbott]
139 */
140
141
142
143 static struct usb_device_id id_table_combined [] = {
144 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
145 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
146 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
147 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
160 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
168 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
169 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
170 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
171 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
180 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
189 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
229 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
235 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
275 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
277 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
279 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
281 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
283 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
285 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
453 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
454 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
455 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
456 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
457 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
504 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
505 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
506 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
507 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
508 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
509 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
510 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
511 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
512 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
513 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
514 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
544 /*
545 * Due to many user requests for multiple ELV devices we enable
546 * them by default.
547 */
548 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
569 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
570 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
571 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
572 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
573 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
577 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
578 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
579 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
580 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
581 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
582 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
583 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
584 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
586 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
587 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
588 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
589 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
590 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
592 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
600 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
601 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
610 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
612 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
613 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
614 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
615 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
619 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
621 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
622 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
623 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
626 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
627 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
628 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
629 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
630 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
631 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
632 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
633 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
634 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
635 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
636 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
637 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
638 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
639 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
640 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
641 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
642 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
643 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
644 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
645 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
646 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
647 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
648 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
649 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
650 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
651 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
652 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
653 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
654 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
655 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
656 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
657 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
658 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
659 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
660 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
661 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
663 { }, /* Optional parameter entry */
664 { } /* Terminating entry */
665 };
666
667 MODULE_DEVICE_TABLE(usb, id_table_combined);
668
669 static struct usb_driver ftdi_driver = {
670 .name = "ftdi_sio",
671 .probe = usb_serial_probe,
672 .disconnect = usb_serial_disconnect,
673 .id_table = id_table_combined,
674 .no_dynamic_id = 1,
675 };
676
677 static const char *ftdi_chip_name[] = {
678 [SIO] = "SIO", /* the serial part of FT8U100AX */
679 [FT8U232AM] = "FT8U232AM",
680 [FT232BM] = "FT232BM",
681 [FT2232C] = "FT2232C",
682 [FT232RL] = "FT232RL",
683 };
684
685
686 /* Constants for read urb and write urb */
687 #define BUFSZ 512
688 #define PKTSZ 64
689
690 /* rx_flags */
691 #define THROTTLED 0x01
692 #define ACTUALLY_THROTTLED 0x02
693
694 /* Used for TIOCMIWAIT */
695 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
696 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
697 /* End TIOCMIWAIT */
698
699 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
700 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
701
702 /* function prototypes for a FTDI serial converter */
703 static int ftdi_sio_probe(struct usb_serial *serial,
704 const struct usb_device_id *id);
705 static void ftdi_shutdown(struct usb_serial *serial);
706 static int ftdi_sio_port_probe(struct usb_serial_port *port);
707 static int ftdi_sio_port_remove(struct usb_serial_port *port);
708 static int ftdi_open(struct tty_struct *tty,
709 struct usb_serial_port *port, struct file *filp);
710 static void ftdi_close(struct tty_struct *tty,
711 struct usb_serial_port *port, struct file *filp);
712 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
713 const unsigned char *buf, int count);
714 static int ftdi_write_room(struct tty_struct *tty);
715 static int ftdi_chars_in_buffer(struct tty_struct *tty);
716 static void ftdi_write_bulk_callback(struct urb *urb);
717 static void ftdi_read_bulk_callback(struct urb *urb);
718 static void ftdi_process_read(struct work_struct *work);
719 static void ftdi_set_termios(struct tty_struct *tty,
720 struct usb_serial_port *port, struct ktermios *old);
721 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
722 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
723 unsigned int set, unsigned int clear);
724 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
725 unsigned int cmd, unsigned long arg);
726 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
727 static void ftdi_throttle(struct tty_struct *tty);
728 static void ftdi_unthrottle(struct tty_struct *tty);
729
730 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
731 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
732 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
733 static __u32 ftdi_232bm_baud_to_divisor(int baud);
734
735 static struct usb_serial_driver ftdi_sio_device = {
736 .driver = {
737 .owner = THIS_MODULE,
738 .name = "ftdi_sio",
739 },
740 .description = "FTDI USB Serial Device",
741 .usb_driver = &ftdi_driver ,
742 .id_table = id_table_combined,
743 .num_ports = 1,
744 .probe = ftdi_sio_probe,
745 .port_probe = ftdi_sio_port_probe,
746 .port_remove = ftdi_sio_port_remove,
747 .open = ftdi_open,
748 .close = ftdi_close,
749 .throttle = ftdi_throttle,
750 .unthrottle = ftdi_unthrottle,
751 .write = ftdi_write,
752 .write_room = ftdi_write_room,
753 .chars_in_buffer = ftdi_chars_in_buffer,
754 .read_bulk_callback = ftdi_read_bulk_callback,
755 .write_bulk_callback = ftdi_write_bulk_callback,
756 .tiocmget = ftdi_tiocmget,
757 .tiocmset = ftdi_tiocmset,
758 .ioctl = ftdi_ioctl,
759 .set_termios = ftdi_set_termios,
760 .break_ctl = ftdi_break_ctl,
761 .shutdown = ftdi_shutdown,
762 };
763
764
765 #define WDR_TIMEOUT 5000 /* default urb timeout */
766 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
767
768 /* High and low are for DTR, RTS etc etc */
769 #define HIGH 1
770 #define LOW 0
771
772 /* number of outstanding urbs to prevent userspace DoS from happening */
773 #define URB_UPPER_LIMIT 42
774
775 /*
776 * ***************************************************************************
777 * Utility functions
778 * ***************************************************************************
779 */
780
781 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
782 {
783 unsigned short int divisor;
784 /* divisor shifted 3 bits to the left */
785 int divisor3 = base / 2 / baud;
786 if ((divisor3 & 0x7) == 7)
787 divisor3++; /* round x.7/8 up to x+1 */
788 divisor = divisor3 >> 3;
789 divisor3 &= 0x7;
790 if (divisor3 == 1)
791 divisor |= 0xc000;
792 else if (divisor3 >= 4)
793 divisor |= 0x4000;
794 else if (divisor3 != 0)
795 divisor |= 0x8000;
796 else if (divisor == 1)
797 divisor = 0; /* special case for maximum baud rate */
798 return divisor;
799 }
800
801 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
802 {
803 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
804 }
805
806 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
807 {
808 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
809 __u32 divisor;
810 /* divisor shifted 3 bits to the left */
811 int divisor3 = base / 2 / baud;
812 divisor = divisor3 >> 3;
813 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
814 /* Deal with special cases for highest baud rates. */
815 if (divisor == 1)
816 divisor = 0;
817 else if (divisor == 0x4001)
818 divisor = 1;
819 return divisor;
820 }
821
822 static __u32 ftdi_232bm_baud_to_divisor(int baud)
823 {
824 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
825 }
826
827 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
828 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
829
830 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
831 unsigned int clear)
832 {
833 struct ftdi_private *priv = usb_get_serial_port_data(port);
834 char *buf;
835 unsigned urb_value;
836 int rv;
837
838 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
839 dbg("%s - DTR|RTS not being set|cleared", __func__);
840 return 0; /* no change */
841 }
842
843 buf = kmalloc(1, GFP_NOIO);
844 if (!buf)
845 return -ENOMEM;
846
847 clear &= ~set; /* 'set' takes precedence over 'clear' */
848 urb_value = 0;
849 if (clear & TIOCM_DTR)
850 urb_value |= FTDI_SIO_SET_DTR_LOW;
851 if (clear & TIOCM_RTS)
852 urb_value |= FTDI_SIO_SET_RTS_LOW;
853 if (set & TIOCM_DTR)
854 urb_value |= FTDI_SIO_SET_DTR_HIGH;
855 if (set & TIOCM_RTS)
856 urb_value |= FTDI_SIO_SET_RTS_HIGH;
857 rv = usb_control_msg(port->serial->dev,
858 usb_sndctrlpipe(port->serial->dev, 0),
859 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
860 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
861 urb_value, priv->interface,
862 buf, 0, WDR_TIMEOUT);
863
864 kfree(buf);
865 if (rv < 0) {
866 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
867 __func__,
868 (set & TIOCM_DTR) ? "HIGH" :
869 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
870 (set & TIOCM_RTS) ? "HIGH" :
871 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
872 } else {
873 dbg("%s - DTR %s, RTS %s", __func__,
874 (set & TIOCM_DTR) ? "HIGH" :
875 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
876 (set & TIOCM_RTS) ? "HIGH" :
877 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
878 /* FIXME: locking on last_dtr_rts */
879 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
880 }
881 return rv;
882 }
883
884
885 static __u32 get_ftdi_divisor(struct tty_struct *tty,
886 struct usb_serial_port *port)
887 { /* get_ftdi_divisor */
888 struct ftdi_private *priv = usb_get_serial_port_data(port);
889 __u32 div_value = 0;
890 int div_okay = 1;
891 int baud;
892
893 /*
894 * The logic involved in setting the baudrate can be cleanly split into
895 * 3 steps.
896 * 1. Standard baud rates are set in tty->termios->c_cflag
897 * 2. If these are not enough, you can set any speed using alt_speed as
898 * follows:
899 * - set tty->termios->c_cflag speed to B38400
900 * - set your real speed in tty->alt_speed; it gets ignored when
901 * alt_speed==0, (or)
902 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
903 * follows:
904 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
905 * this just sets alt_speed to (HI: 57600, VHI: 115200,
906 * SHI: 230400, WARP: 460800)
907 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
908 * 3. You can also set baud rate by setting custom divisor as follows
909 * - set tty->termios->c_cflag speed to B38400
910 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
911 * follows:
912 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
913 * o custom_divisor set to baud_base / your_new_baudrate
914 * ** Step 3 is done courtesy of code borrowed from serial.c
915 * I should really spend some time and separate + move this common
916 * code to serial.c, it is replicated in nearly every serial driver
917 * you see.
918 */
919
920 /* 1. Get the baud rate from the tty settings, this observes
921 alt_speed hack */
922
923 baud = tty_get_baud_rate(tty);
924 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
925
926 /* 2. Observe async-compatible custom_divisor hack, update baudrate
927 if needed */
928
929 if (baud == 38400 &&
930 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
931 (priv->custom_divisor)) {
932 baud = priv->baud_base / priv->custom_divisor;
933 dbg("%s - custom divisor %d sets baud rate to %d",
934 __func__, priv->custom_divisor, baud);
935 }
936
937 /* 3. Convert baudrate to device-specific divisor */
938
939 if (!baud)
940 baud = 9600;
941 switch (priv->chip_type) {
942 case SIO: /* SIO chip */
943 switch (baud) {
944 case 300: div_value = ftdi_sio_b300; break;
945 case 600: div_value = ftdi_sio_b600; break;
946 case 1200: div_value = ftdi_sio_b1200; break;
947 case 2400: div_value = ftdi_sio_b2400; break;
948 case 4800: div_value = ftdi_sio_b4800; break;
949 case 9600: div_value = ftdi_sio_b9600; break;
950 case 19200: div_value = ftdi_sio_b19200; break;
951 case 38400: div_value = ftdi_sio_b38400; break;
952 case 57600: div_value = ftdi_sio_b57600; break;
953 case 115200: div_value = ftdi_sio_b115200; break;
954 } /* baud */
955 if (div_value == 0) {
956 dbg("%s - Baudrate (%d) requested is not supported",
957 __func__, baud);
958 div_value = ftdi_sio_b9600;
959 baud = 9600;
960 div_okay = 0;
961 }
962 break;
963 case FT8U232AM: /* 8U232AM chip */
964 if (baud <= 3000000) {
965 div_value = ftdi_232am_baud_to_divisor(baud);
966 } else {
967 dbg("%s - Baud rate too high!", __func__);
968 baud = 9600;
969 div_value = ftdi_232am_baud_to_divisor(9600);
970 div_okay = 0;
971 }
972 break;
973 case FT232BM: /* FT232BM chip */
974 case FT2232C: /* FT2232C chip */
975 case FT232RL:
976 if (baud <= 3000000) {
977 div_value = ftdi_232bm_baud_to_divisor(baud);
978 } else {
979 dbg("%s - Baud rate too high!", __func__);
980 div_value = ftdi_232bm_baud_to_divisor(9600);
981 div_okay = 0;
982 baud = 9600;
983 }
984 break;
985 } /* priv->chip_type */
986
987 if (div_okay) {
988 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
989 __func__, baud, (unsigned long)div_value,
990 ftdi_chip_name[priv->chip_type]);
991 }
992
993 tty_encode_baud_rate(tty, baud, baud);
994 return div_value;
995 }
996
997 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
998 {
999 struct ftdi_private *priv = usb_get_serial_port_data(port);
1000 char *buf;
1001 __u16 urb_value;
1002 __u16 urb_index;
1003 __u32 urb_index_value;
1004 int rv;
1005
1006 buf = kmalloc(1, GFP_NOIO);
1007 if (!buf)
1008 return -ENOMEM;
1009
1010 urb_index_value = get_ftdi_divisor(tty, port);
1011 urb_value = (__u16)urb_index_value;
1012 urb_index = (__u16)(urb_index_value >> 16);
1013 if (priv->interface) { /* FT2232C */
1014 urb_index = (__u16)((urb_index << 8) | priv->interface);
1015 }
1016
1017 rv = usb_control_msg(port->serial->dev,
1018 usb_sndctrlpipe(port->serial->dev, 0),
1019 FTDI_SIO_SET_BAUDRATE_REQUEST,
1020 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1021 urb_value, urb_index,
1022 buf, 0, WDR_SHORT_TIMEOUT);
1023
1024 kfree(buf);
1025 return rv;
1026 }
1027
1028
1029
1030 static int get_serial_info(struct usb_serial_port *port,
1031 struct serial_struct __user *retinfo)
1032 {
1033 struct ftdi_private *priv = usb_get_serial_port_data(port);
1034 struct serial_struct tmp;
1035
1036 if (!retinfo)
1037 return -EFAULT;
1038 memset(&tmp, 0, sizeof(tmp));
1039 tmp.flags = priv->flags;
1040 tmp.baud_base = priv->baud_base;
1041 tmp.custom_divisor = priv->custom_divisor;
1042 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1043 return -EFAULT;
1044 return 0;
1045 } /* get_serial_info */
1046
1047
1048 static int set_serial_info(struct tty_struct *tty,
1049 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1050 { /* set_serial_info */
1051 struct ftdi_private *priv = usb_get_serial_port_data(port);
1052 struct serial_struct new_serial;
1053 struct ftdi_private old_priv;
1054
1055 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1056 return -EFAULT;
1057
1058 lock_kernel();
1059 old_priv = *priv;
1060
1061 /* Do error checking and permission checking */
1062
1063 if (!capable(CAP_SYS_ADMIN)) {
1064 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1065 (priv->flags & ~ASYNC_USR_MASK)))
1066 return -EPERM;
1067 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1068 (new_serial.flags & ASYNC_USR_MASK));
1069 priv->custom_divisor = new_serial.custom_divisor;
1070 goto check_and_exit;
1071 }
1072
1073 if ((new_serial.baud_base != priv->baud_base) &&
1074 (new_serial.baud_base < 9600)) {
1075 unlock_kernel();
1076 return -EINVAL;
1077 }
1078
1079 /* Make the changes - these are privileged changes! */
1080
1081 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1082 (new_serial.flags & ASYNC_FLAGS));
1083 priv->custom_divisor = new_serial.custom_divisor;
1084
1085 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1086
1087 check_and_exit:
1088 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1089 (priv->flags & ASYNC_SPD_MASK)) {
1090 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1091 tty->alt_speed = 57600;
1092 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1093 tty->alt_speed = 115200;
1094 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1095 tty->alt_speed = 230400;
1096 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1097 tty->alt_speed = 460800;
1098 else
1099 tty->alt_speed = 0;
1100 }
1101 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1102 (priv->flags & ASYNC_SPD_MASK)) ||
1103 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1104 (old_priv.custom_divisor != priv->custom_divisor))) {
1105 unlock_kernel();
1106 change_speed(tty, port);
1107 }
1108 else
1109 unlock_kernel();
1110 return 0;
1111
1112 } /* set_serial_info */
1113
1114
1115 /* Determine type of FTDI chip based on USB config and descriptor. */
1116 static void ftdi_determine_type(struct usb_serial_port *port)
1117 {
1118 struct ftdi_private *priv = usb_get_serial_port_data(port);
1119 struct usb_serial *serial = port->serial;
1120 struct usb_device *udev = serial->dev;
1121 unsigned version;
1122 unsigned interfaces;
1123
1124 /* Assume it is not the original SIO device for now. */
1125 priv->baud_base = 48000000 / 2;
1126 priv->write_offset = 0;
1127
1128 version = le16_to_cpu(udev->descriptor.bcdDevice);
1129 interfaces = udev->actconfig->desc.bNumInterfaces;
1130 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1131 version, interfaces);
1132 if (interfaces > 1) {
1133 int inter;
1134
1135 /* Multiple interfaces. Assume FT2232C. */
1136 priv->chip_type = FT2232C;
1137 /* Determine interface code. */
1138 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1139 if (inter == 0)
1140 priv->interface = PIT_SIOA;
1141 else
1142 priv->interface = PIT_SIOB;
1143 /* BM-type devices have a bug where bcdDevice gets set
1144 * to 0x200 when iSerialNumber is 0. */
1145 if (version < 0x500) {
1146 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1147 __func__);
1148 }
1149 } else if (version < 0x200) {
1150 /* Old device. Assume its the original SIO. */
1151 priv->chip_type = SIO;
1152 priv->baud_base = 12000000 / 16;
1153 priv->write_offset = 1;
1154 } else if (version < 0x400) {
1155 /* Assume its an FT8U232AM (or FT8U245AM) */
1156 /* (It might be a BM because of the iSerialNumber bug,
1157 * but it will still work as an AM device.) */
1158 priv->chip_type = FT8U232AM;
1159 } else if (version < 0x600) {
1160 /* Assume its an FT232BM (or FT245BM) */
1161 priv->chip_type = FT232BM;
1162 } else {
1163 /* Assume its an FT232R */
1164 priv->chip_type = FT232RL;
1165 }
1166 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1167 }
1168
1169
1170 /*
1171 * ***************************************************************************
1172 * Sysfs Attribute
1173 * ***************************************************************************
1174 */
1175
1176 static ssize_t show_latency_timer(struct device *dev,
1177 struct device_attribute *attr, char *buf)
1178 {
1179 struct usb_serial_port *port = to_usb_serial_port(dev);
1180 struct ftdi_private *priv = usb_get_serial_port_data(port);
1181 struct usb_device *udev = port->serial->dev;
1182 unsigned short latency = 0;
1183 int rv = 0;
1184
1185
1186 dbg("%s", __func__);
1187
1188 rv = usb_control_msg(udev,
1189 usb_rcvctrlpipe(udev, 0),
1190 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1191 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1192 0, priv->interface,
1193 (char *) &latency, 1, WDR_TIMEOUT);
1194
1195 if (rv < 0) {
1196 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1197 return -EIO;
1198 }
1199 return sprintf(buf, "%i\n", latency);
1200 }
1201
1202 /* Write a new value of the latency timer, in units of milliseconds. */
1203 static ssize_t store_latency_timer(struct device *dev,
1204 struct device_attribute *attr, const char *valbuf,
1205 size_t count)
1206 {
1207 struct usb_serial_port *port = to_usb_serial_port(dev);
1208 struct ftdi_private *priv = usb_get_serial_port_data(port);
1209 struct usb_device *udev = port->serial->dev;
1210 char buf[1];
1211 int v = simple_strtoul(valbuf, NULL, 10);
1212 int rv = 0;
1213
1214 dbg("%s: setting latency timer = %i", __func__, v);
1215
1216 rv = usb_control_msg(udev,
1217 usb_sndctrlpipe(udev, 0),
1218 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1219 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1220 v, priv->interface,
1221 buf, 0, WDR_TIMEOUT);
1222
1223 if (rv < 0) {
1224 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1225 return -EIO;
1226 }
1227
1228 return count;
1229 }
1230
1231 /* Write an event character directly to the FTDI register. The ASCII
1232 value is in the low 8 bits, with the enable bit in the 9th bit. */
1233 static ssize_t store_event_char(struct device *dev,
1234 struct device_attribute *attr, const char *valbuf, size_t count)
1235 {
1236 struct usb_serial_port *port = to_usb_serial_port(dev);
1237 struct ftdi_private *priv = usb_get_serial_port_data(port);
1238 struct usb_device *udev = port->serial->dev;
1239 char buf[1];
1240 int v = simple_strtoul(valbuf, NULL, 10);
1241 int rv = 0;
1242
1243 dbg("%s: setting event char = %i", __func__, v);
1244
1245 rv = usb_control_msg(udev,
1246 usb_sndctrlpipe(udev, 0),
1247 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1248 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1249 v, priv->interface,
1250 buf, 0, WDR_TIMEOUT);
1251
1252 if (rv < 0) {
1253 dbg("Unable to write event character: %i", rv);
1254 return -EIO;
1255 }
1256
1257 return count;
1258 }
1259
1260 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1261 store_latency_timer);
1262 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1263
1264 static int create_sysfs_attrs(struct usb_serial_port *port)
1265 {
1266 struct ftdi_private *priv = usb_get_serial_port_data(port);
1267 int retval = 0;
1268
1269 dbg("%s", __func__);
1270
1271 /* XXX I've no idea if the original SIO supports the event_char
1272 * sysfs parameter, so I'm playing it safe. */
1273 if (priv->chip_type != SIO) {
1274 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1275 retval = device_create_file(&port->dev, &dev_attr_event_char);
1276 if ((!retval) &&
1277 (priv->chip_type == FT232BM ||
1278 priv->chip_type == FT2232C ||
1279 priv->chip_type == FT232RL)) {
1280 retval = device_create_file(&port->dev,
1281 &dev_attr_latency_timer);
1282 }
1283 }
1284 return retval;
1285 }
1286
1287 static void remove_sysfs_attrs(struct usb_serial_port *port)
1288 {
1289 struct ftdi_private *priv = usb_get_serial_port_data(port);
1290
1291 dbg("%s", __func__);
1292
1293 /* XXX see create_sysfs_attrs */
1294 if (priv->chip_type != SIO) {
1295 device_remove_file(&port->dev, &dev_attr_event_char);
1296 if (priv->chip_type == FT232BM ||
1297 priv->chip_type == FT2232C ||
1298 priv->chip_type == FT232RL) {
1299 device_remove_file(&port->dev, &dev_attr_latency_timer);
1300 }
1301 }
1302
1303 }
1304
1305 /*
1306 * ***************************************************************************
1307 * FTDI driver specific functions
1308 * ***************************************************************************
1309 */
1310
1311 /* Probe function to check for special devices */
1312 static int ftdi_sio_probe(struct usb_serial *serial,
1313 const struct usb_device_id *id)
1314 {
1315 struct ftdi_sio_quirk *quirk =
1316 (struct ftdi_sio_quirk *)id->driver_info;
1317
1318 if (quirk && quirk->probe) {
1319 int ret = quirk->probe(serial);
1320 if (ret != 0)
1321 return ret;
1322 }
1323
1324 usb_set_serial_data(serial, (void *)id->driver_info);
1325
1326 return 0;
1327 }
1328
1329 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1330 {
1331 struct ftdi_private *priv;
1332 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1333
1334
1335 dbg("%s", __func__);
1336
1337 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1338 if (!priv) {
1339 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1340 sizeof(struct ftdi_private));
1341 return -ENOMEM;
1342 }
1343
1344 spin_lock_init(&priv->rx_lock);
1345 spin_lock_init(&priv->tx_lock);
1346 init_waitqueue_head(&priv->delta_msr_wait);
1347 /* This will push the characters through immediately rather
1348 than queue a task to deliver them */
1349 priv->flags = ASYNC_LOW_LATENCY;
1350
1351 if (quirk && quirk->port_probe)
1352 quirk->port_probe(priv);
1353
1354 /* Increase the size of read buffers */
1355 kfree(port->bulk_in_buffer);
1356 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1357 if (!port->bulk_in_buffer) {
1358 kfree(priv);
1359 return -ENOMEM;
1360 }
1361 if (port->read_urb) {
1362 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1363 port->read_urb->transfer_buffer_length = BUFSZ;
1364 }
1365
1366 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1367 priv->port = port;
1368
1369 /* Free port's existing write urb and transfer buffer. */
1370 if (port->write_urb) {
1371 usb_free_urb(port->write_urb);
1372 port->write_urb = NULL;
1373 }
1374 kfree(port->bulk_out_buffer);
1375 port->bulk_out_buffer = NULL;
1376
1377 usb_set_serial_port_data(port, priv);
1378
1379 ftdi_determine_type(port);
1380 create_sysfs_attrs(port);
1381 return 0;
1382 }
1383
1384 /* Setup for the USB-UIRT device, which requires hardwired
1385 * baudrate (38400 gets mapped to 312500) */
1386 /* Called from usbserial:serial_probe */
1387 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1388 {
1389 dbg("%s", __func__);
1390
1391 priv->flags |= ASYNC_SPD_CUST;
1392 priv->custom_divisor = 77;
1393 priv->force_baud = 38400;
1394 } /* ftdi_USB_UIRT_setup */
1395
1396 /* Setup for the HE-TIRA1 device, which requires hardwired
1397 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1398
1399 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1400 {
1401 dbg("%s", __func__);
1402
1403 priv->flags |= ASYNC_SPD_CUST;
1404 priv->custom_divisor = 240;
1405 priv->force_baud = 38400;
1406 priv->force_rtscts = 1;
1407 } /* ftdi_HE_TIRA1_setup */
1408
1409 /*
1410 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1411 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1412 * userspace using openocd.
1413 */
1414 static int ftdi_jtag_probe(struct usb_serial *serial)
1415 {
1416 struct usb_device *udev = serial->dev;
1417 struct usb_interface *interface = serial->interface;
1418
1419 dbg("%s", __func__);
1420
1421 if (interface == udev->actconfig->interface[0]) {
1422 dev_info(&udev->dev,
1423 "Ignoring serial port reserved for JTAG\n");
1424 return -ENODEV;
1425 }
1426
1427 return 0;
1428 }
1429
1430 /*
1431 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1432 * We have to correct it if we want to read from it.
1433 */
1434 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1435 {
1436 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1437 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1438
1439 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1440 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1441 dev_info(&serial->dev->dev,
1442 "Fixing invalid wMaxPacketSize on read pipe\n");
1443 }
1444
1445 return 0;
1446 }
1447
1448 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1449 * it is called when the usb device is disconnected
1450 *
1451 * usbserial:usb_serial_disconnect
1452 * calls __serial_close for each open of the port
1453 * shutdown is called then (ie ftdi_shutdown)
1454 */
1455 static void ftdi_shutdown(struct usb_serial *serial)
1456 {
1457 dbg("%s", __func__);
1458 }
1459
1460 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1461 {
1462 struct ftdi_private *priv = usb_get_serial_port_data(port);
1463
1464 dbg("%s", __func__);
1465
1466 remove_sysfs_attrs(port);
1467
1468 /* all open ports are closed at this point
1469 * (by usbserial.c:__serial_close, which calls ftdi_close)
1470 */
1471
1472 if (priv) {
1473 usb_set_serial_port_data(port, NULL);
1474 kfree(priv);
1475 }
1476
1477 return 0;
1478 }
1479
1480 static int ftdi_open(struct tty_struct *tty,
1481 struct usb_serial_port *port, struct file *filp)
1482 { /* ftdi_open */
1483 struct usb_device *dev = port->serial->dev;
1484 struct ftdi_private *priv = usb_get_serial_port_data(port);
1485 unsigned long flags;
1486
1487 int result = 0;
1488 char buf[1]; /* Needed for the usb_control_msg I think */
1489
1490 dbg("%s", __func__);
1491
1492 spin_lock_irqsave(&priv->tx_lock, flags);
1493 priv->tx_bytes = 0;
1494 spin_unlock_irqrestore(&priv->tx_lock, flags);
1495 spin_lock_irqsave(&priv->rx_lock, flags);
1496 priv->rx_bytes = 0;
1497 spin_unlock_irqrestore(&priv->rx_lock, flags);
1498
1499 if (tty)
1500 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1501
1502 /* No error checking for this (will get errors later anyway) */
1503 /* See ftdi_sio.h for description of what is reset */
1504 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1505 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1506 FTDI_SIO_RESET_SIO,
1507 priv->interface, buf, 0, WDR_TIMEOUT);
1508
1509 /* Termios defaults are set by usb_serial_init. We don't change
1510 port->tty->termios - this would lose speed settings, etc.
1511 This is same behaviour as serial.c/rs_open() - Kuba */
1512
1513 /* ftdi_set_termios will send usb control messages */
1514 if (tty)
1515 ftdi_set_termios(tty, port, tty->termios);
1516
1517 /* FIXME: Flow control might be enabled, so it should be checked -
1518 we have no control of defaults! */
1519 /* Turn on RTS and DTR since we are not flow controlling by default */
1520 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1521
1522 /* Not throttled */
1523 spin_lock_irqsave(&priv->rx_lock, flags);
1524 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1525 spin_unlock_irqrestore(&priv->rx_lock, flags);
1526
1527 /* Start reading from the device */
1528 priv->rx_processed = 0;
1529 usb_fill_bulk_urb(port->read_urb, dev,
1530 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1531 port->read_urb->transfer_buffer,
1532 port->read_urb->transfer_buffer_length,
1533 ftdi_read_bulk_callback, port);
1534 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1535 if (result)
1536 dev_err(&port->dev,
1537 "%s - failed submitting read urb, error %d\n",
1538 __func__, result);
1539
1540
1541 return result;
1542 } /* ftdi_open */
1543
1544
1545
1546 /*
1547 * usbserial:__serial_close only calls ftdi_close if the point is open
1548 *
1549 * This only gets called when it is the last close
1550 *
1551 *
1552 */
1553
1554 static void ftdi_close(struct tty_struct *tty,
1555 struct usb_serial_port *port, struct file *filp)
1556 { /* ftdi_close */
1557 unsigned int c_cflag = tty->termios->c_cflag;
1558 struct ftdi_private *priv = usb_get_serial_port_data(port);
1559 char buf[1];
1560
1561 dbg("%s", __func__);
1562
1563 mutex_lock(&port->serial->disc_mutex);
1564 if (c_cflag & HUPCL && !port->serial->disconnected) {
1565 /* Disable flow control */
1566 if (usb_control_msg(port->serial->dev,
1567 usb_sndctrlpipe(port->serial->dev, 0),
1568 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1569 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1570 0, priv->interface, buf, 0,
1571 WDR_TIMEOUT) < 0) {
1572 dev_err(&port->dev, "error from flowcontrol urb\n");
1573 }
1574
1575 /* drop RTS and DTR */
1576 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1577 } /* Note change no line if hupcl is off */
1578 mutex_unlock(&port->serial->disc_mutex);
1579
1580 /* cancel any scheduled reading */
1581 cancel_delayed_work(&priv->rx_work);
1582 flush_scheduled_work();
1583
1584 /* shutdown our bulk read */
1585 usb_kill_urb(port->read_urb);
1586 } /* ftdi_close */
1587
1588
1589
1590 /* The SIO requires the first byte to have:
1591 * B0 1
1592 * B1 0
1593 * B2..7 length of message excluding byte 0
1594 *
1595 * The new devices do not require this byte
1596 */
1597 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1598 const unsigned char *buf, int count)
1599 { /* ftdi_write */
1600 struct ftdi_private *priv = usb_get_serial_port_data(port);
1601 struct urb *urb;
1602 unsigned char *buffer;
1603 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1604 int status;
1605 int transfer_size;
1606 unsigned long flags;
1607
1608 dbg("%s port %d, %d bytes", __func__, port->number, count);
1609
1610 if (count == 0) {
1611 dbg("write request of 0 bytes");
1612 return 0;
1613 }
1614 spin_lock_irqsave(&priv->tx_lock, flags);
1615 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1616 spin_unlock_irqrestore(&priv->tx_lock, flags);
1617 dbg("%s - write limit hit\n", __func__);
1618 return 0;
1619 }
1620 priv->tx_outstanding_urbs++;
1621 spin_unlock_irqrestore(&priv->tx_lock, flags);
1622
1623 data_offset = priv->write_offset;
1624 dbg("data_offset set to %d", data_offset);
1625
1626 /* Determine total transfer size */
1627 transfer_size = count;
1628 if (data_offset > 0) {
1629 /* Original sio needs control bytes too... */
1630 transfer_size += (data_offset *
1631 ((count + (PKTSZ - 1 - data_offset)) /
1632 (PKTSZ - data_offset)));
1633 }
1634
1635 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1636 if (!buffer) {
1637 dev_err(&port->dev,
1638 "%s ran out of kernel memory for urb ...\n", __func__);
1639 count = -ENOMEM;
1640 goto error_no_buffer;
1641 }
1642
1643 urb = usb_alloc_urb(0, GFP_ATOMIC);
1644 if (!urb) {
1645 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1646 count = -ENOMEM;
1647 goto error_no_urb;
1648 }
1649
1650 /* Copy data */
1651 if (data_offset > 0) {
1652 /* Original sio requires control byte at start of
1653 each packet. */
1654 int user_pktsz = PKTSZ - data_offset;
1655 int todo = count;
1656 unsigned char *first_byte = buffer;
1657 const unsigned char *current_position = buf;
1658
1659 while (todo > 0) {
1660 if (user_pktsz > todo)
1661 user_pktsz = todo;
1662 /* Write the control byte at the front of the packet*/
1663 *first_byte = 1 | ((user_pktsz) << 2);
1664 /* Copy data for packet */
1665 memcpy(first_byte + data_offset,
1666 current_position, user_pktsz);
1667 first_byte += user_pktsz + data_offset;
1668 current_position += user_pktsz;
1669 todo -= user_pktsz;
1670 }
1671 } else {
1672 /* No control byte required. */
1673 /* Copy in the data to send */
1674 memcpy(buffer, buf, count);
1675 }
1676
1677 usb_serial_debug_data(debug, &port->dev, __func__,
1678 transfer_size, buffer);
1679
1680 /* fill the buffer and send it */
1681 usb_fill_bulk_urb(urb, port->serial->dev,
1682 usb_sndbulkpipe(port->serial->dev,
1683 port->bulk_out_endpointAddress),
1684 buffer, transfer_size,
1685 ftdi_write_bulk_callback, port);
1686
1687 status = usb_submit_urb(urb, GFP_ATOMIC);
1688 if (status) {
1689 dev_err(&port->dev,
1690 "%s - failed submitting write urb, error %d\n",
1691 __func__, status);
1692 count = status;
1693 goto error;
1694 } else {
1695 spin_lock_irqsave(&priv->tx_lock, flags);
1696 priv->tx_outstanding_bytes += count;
1697 priv->tx_bytes += count;
1698 spin_unlock_irqrestore(&priv->tx_lock, flags);
1699 }
1700
1701 /* we are done with this urb, so let the host driver
1702 * really free it when it is finished with it */
1703 usb_free_urb(urb);
1704
1705 dbg("%s write returning: %d", __func__, count);
1706 return count;
1707 error:
1708 usb_free_urb(urb);
1709 error_no_urb:
1710 kfree(buffer);
1711 error_no_buffer:
1712 spin_lock_irqsave(&priv->tx_lock, flags);
1713 priv->tx_outstanding_urbs--;
1714 spin_unlock_irqrestore(&priv->tx_lock, flags);
1715 return count;
1716 } /* ftdi_write */
1717
1718
1719 /* This function may get called when the device is closed */
1720
1721 static void ftdi_write_bulk_callback(struct urb *urb)
1722 {
1723 unsigned long flags;
1724 struct usb_serial_port *port = urb->context;
1725 struct ftdi_private *priv;
1726 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1727 unsigned long countback;
1728 int status = urb->status;
1729
1730 /* free up the transfer buffer, as usb_free_urb() does not do this */
1731 kfree(urb->transfer_buffer);
1732
1733 dbg("%s - port %d", __func__, port->number);
1734
1735 if (status) {
1736 dbg("nonzero write bulk status received: %d", status);
1737 return;
1738 }
1739
1740 priv = usb_get_serial_port_data(port);
1741 if (!priv) {
1742 dbg("%s - bad port private data pointer - exiting", __func__);
1743 return;
1744 }
1745 /* account for transferred data */
1746 countback = urb->actual_length;
1747 data_offset = priv->write_offset;
1748 if (data_offset > 0) {
1749 /* Subtract the control bytes */
1750 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
1751 }
1752 spin_lock_irqsave(&priv->tx_lock, flags);
1753 --priv->tx_outstanding_urbs;
1754 priv->tx_outstanding_bytes -= countback;
1755 spin_unlock_irqrestore(&priv->tx_lock, flags);
1756
1757 usb_serial_port_softint(port);
1758 } /* ftdi_write_bulk_callback */
1759
1760
1761 static int ftdi_write_room(struct tty_struct *tty)
1762 {
1763 struct usb_serial_port *port = tty->driver_data;
1764 struct ftdi_private *priv = usb_get_serial_port_data(port);
1765 int room;
1766 unsigned long flags;
1767
1768 dbg("%s - port %d", __func__, port->number);
1769
1770 spin_lock_irqsave(&priv->tx_lock, flags);
1771 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1772 /*
1773 * We really can take anything the user throws at us
1774 * but let's pick a nice big number to tell the tty
1775 * layer that we have lots of free space
1776 */
1777 room = 2048;
1778 } else {
1779 room = 0;
1780 }
1781 spin_unlock_irqrestore(&priv->tx_lock, flags);
1782 return room;
1783 }
1784
1785 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1786 {
1787 struct usb_serial_port *port = tty->driver_data;
1788 struct ftdi_private *priv = usb_get_serial_port_data(port);
1789 int buffered;
1790 unsigned long flags;
1791
1792 dbg("%s - port %d", __func__, port->number);
1793
1794 spin_lock_irqsave(&priv->tx_lock, flags);
1795 buffered = (int)priv->tx_outstanding_bytes;
1796 spin_unlock_irqrestore(&priv->tx_lock, flags);
1797 if (buffered < 0) {
1798 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1799 __func__);
1800 buffered = 0;
1801 }
1802 return buffered;
1803 }
1804
1805 static void ftdi_read_bulk_callback(struct urb *urb)
1806 {
1807 struct usb_serial_port *port = urb->context;
1808 struct tty_struct *tty;
1809 struct ftdi_private *priv;
1810 unsigned long countread;
1811 unsigned long flags;
1812 int status = urb->status;
1813
1814 if (urb->number_of_packets > 0) {
1815 dev_err(&port->dev, "%s transfer_buffer_length %d "
1816 "actual_length %d number of packets %d\n", __func__,
1817 urb->transfer_buffer_length,
1818 urb->actual_length, urb->number_of_packets);
1819 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1820 urb->transfer_flags);
1821 }
1822
1823 dbg("%s - port %d", __func__, port->number);
1824
1825 if (port->port.count <= 0)
1826 return;
1827
1828 tty = tty_port_tty_get(&port->port);
1829 if (!tty) {
1830 dbg("%s - bad tty pointer - exiting", __func__);
1831 return;
1832 }
1833
1834 priv = usb_get_serial_port_data(port);
1835 if (!priv) {
1836 dbg("%s - bad port private data pointer - exiting", __func__);
1837 goto out;
1838 }
1839
1840 if (urb != port->read_urb)
1841 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1842
1843 if (status) {
1844 /* This will happen at close every time so it is a dbg not an
1845 err */
1846 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
1847 goto out;
1848 }
1849
1850 /* count data bytes, but not status bytes */
1851 countread = urb->actual_length;
1852 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
1853 spin_lock_irqsave(&priv->rx_lock, flags);
1854 priv->rx_bytes += countread;
1855 spin_unlock_irqrestore(&priv->rx_lock, flags);
1856
1857 ftdi_process_read(&priv->rx_work.work);
1858 out:
1859 tty_kref_put(tty);
1860 } /* ftdi_read_bulk_callback */
1861
1862
1863 static void ftdi_process_read(struct work_struct *work)
1864 { /* ftdi_process_read */
1865 struct ftdi_private *priv =
1866 container_of(work, struct ftdi_private, rx_work.work);
1867 struct usb_serial_port *port = priv->port;
1868 struct urb *urb;
1869 struct tty_struct *tty;
1870 char error_flag;
1871 unsigned char *data;
1872
1873 int i;
1874 int result;
1875 int need_flip;
1876 int packet_offset;
1877 unsigned long flags;
1878
1879 dbg("%s - port %d", __func__, port->number);
1880
1881 if (port->port.count <= 0)
1882 return;
1883
1884 tty = tty_port_tty_get(&port->port);
1885 if (!tty) {
1886 dbg("%s - bad tty pointer - exiting", __func__);
1887 return;
1888 }
1889
1890 priv = usb_get_serial_port_data(port);
1891 if (!priv) {
1892 dbg("%s - bad port private data pointer - exiting", __func__);
1893 goto out;
1894 }
1895
1896 urb = port->read_urb;
1897 if (!urb) {
1898 dbg("%s - bad read_urb pointer - exiting", __func__);
1899 goto out;
1900 }
1901
1902 data = urb->transfer_buffer;
1903
1904 if (priv->rx_processed) {
1905 dbg("%s - already processed: %d bytes, %d remain", __func__,
1906 priv->rx_processed,
1907 urb->actual_length - priv->rx_processed);
1908 } else {
1909 /* The first two bytes of every read packet are status */
1910 if (urb->actual_length > 2)
1911 usb_serial_debug_data(debug, &port->dev, __func__,
1912 urb->actual_length, data);
1913 else
1914 dbg("Status only: %03oo %03oo", data[0], data[1]);
1915 }
1916
1917
1918 /* TO DO -- check for hung up line and handle appropriately: */
1919 /* send hangup */
1920 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1921 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1922
1923 need_flip = 0;
1924 for (packet_offset = priv->rx_processed;
1925 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1926 int length;
1927
1928 /* Compare new line status to the old one, signal if different/
1929 N.B. packet may be processed more than once, but differences
1930 are only processed once. */
1931 if (priv != NULL) {
1932 char new_status = data[packet_offset + 0] &
1933 FTDI_STATUS_B0_MASK;
1934 if (new_status != priv->prev_status) {
1935 priv->diff_status |=
1936 new_status ^ priv->prev_status;
1937 wake_up_interruptible(&priv->delta_msr_wait);
1938 priv->prev_status = new_status;
1939 }
1940 }
1941
1942 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1943 if (length < 0) {
1944 dev_err(&port->dev, "%s - bad packet length: %d\n",
1945 __func__, length+2);
1946 length = 0;
1947 }
1948
1949 if (priv->rx_flags & THROTTLED) {
1950 dbg("%s - throttled", __func__);
1951 break;
1952 }
1953 if (tty_buffer_request_room(tty, length) < length) {
1954 /* break out & wait for throttling/unthrottling to
1955 happen */
1956 dbg("%s - receive room low", __func__);
1957 break;
1958 }
1959
1960 /* Handle errors and break */
1961 error_flag = TTY_NORMAL;
1962 /* Although the device uses a bitmask and hence can have
1963 multiple errors on a packet - the order here sets the
1964 priority the error is returned to the tty layer */
1965
1966 if (data[packet_offset+1] & FTDI_RS_OE) {
1967 error_flag = TTY_OVERRUN;
1968 dbg("OVERRRUN error");
1969 }
1970 if (data[packet_offset+1] & FTDI_RS_BI) {
1971 error_flag = TTY_BREAK;
1972 dbg("BREAK received");
1973 }
1974 if (data[packet_offset+1] & FTDI_RS_PE) {
1975 error_flag = TTY_PARITY;
1976 dbg("PARITY error");
1977 }
1978 if (data[packet_offset+1] & FTDI_RS_FE) {
1979 error_flag = TTY_FRAME;
1980 dbg("FRAMING error");
1981 }
1982 if (length > 0) {
1983 for (i = 2; i < length+2; i++) {
1984 /* Note that the error flag is duplicated for
1985 every character received since we don't know
1986 which character it applied to */
1987 tty_insert_flip_char(tty,
1988 data[packet_offset + i], error_flag);
1989 }
1990 need_flip = 1;
1991 }
1992
1993 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1994 /* if a parity error is detected you get status packets forever
1995 until a character is sent without a parity error.
1996 This doesn't work well since the application receives a
1997 never ending stream of bad data - even though new data
1998 hasn't been sent. Therefore I (bill) have taken this out.
1999 However - this might make sense for framing errors and so on
2000 so I am leaving the code in for now.
2001 */
2002 else {
2003 if (error_flag != TTY_NORMAL) {
2004 dbg("error_flag is not normal");
2005 /* In this case it is just status - if that is
2006 an error send a bad character */
2007 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
2008 tty_flip_buffer_push(tty);
2009 tty_insert_flip_char(tty, 0xff, error_flag);
2010 need_flip = 1;
2011 }
2012 }
2013 #endif
2014 } /* "for(packet_offset=0..." */
2015
2016 /* Low latency */
2017 if (need_flip)
2018 tty_flip_buffer_push(tty);
2019
2020 if (packet_offset < urb->actual_length) {
2021 /* not completely processed - record progress */
2022 priv->rx_processed = packet_offset;
2023 dbg("%s - incomplete, %d bytes processed, %d remain",
2024 __func__, packet_offset,
2025 urb->actual_length - packet_offset);
2026 /* check if we were throttled while processing */
2027 spin_lock_irqsave(&priv->rx_lock, flags);
2028 if (priv->rx_flags & THROTTLED) {
2029 priv->rx_flags |= ACTUALLY_THROTTLED;
2030 spin_unlock_irqrestore(&priv->rx_lock, flags);
2031 dbg("%s - deferring remainder until unthrottled",
2032 __func__);
2033 return;
2034 }
2035 spin_unlock_irqrestore(&priv->rx_lock, flags);
2036 /* if the port is closed stop trying to read */
2037 if (port->port.count > 0)
2038 /* delay processing of remainder */
2039 schedule_delayed_work(&priv->rx_work, 1);
2040 else
2041 dbg("%s - port is closed", __func__);
2042 goto out;
2043 }
2044
2045 /* urb is completely processed */
2046 priv->rx_processed = 0;
2047
2048 /* if the port is closed stop trying to read */
2049 if (port->port.count > 0) {
2050 /* Continue trying to always read */
2051 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
2052 usb_rcvbulkpipe(port->serial->dev,
2053 port->bulk_in_endpointAddress),
2054 port->read_urb->transfer_buffer,
2055 port->read_urb->transfer_buffer_length,
2056 ftdi_read_bulk_callback, port);
2057
2058 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2059 if (result)
2060 dev_err(&port->dev,
2061 "%s - failed resubmitting read urb, error %d\n",
2062 __func__, result);
2063 }
2064 out:
2065 tty_kref_put(tty);
2066 } /* ftdi_process_read */
2067
2068
2069 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2070 {
2071 struct usb_serial_port *port = tty->driver_data;
2072 struct ftdi_private *priv = usb_get_serial_port_data(port);
2073 __u16 urb_value = 0;
2074 char buf[1];
2075
2076 /* break_state = -1 to turn on break, and 0 to turn off break */
2077 /* see drivers/char/tty_io.c to see it used */
2078 /* last_set_data_urb_value NEVER has the break bit set in it */
2079
2080 if (break_state)
2081 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2082 else
2083 urb_value = priv->last_set_data_urb_value;
2084
2085 if (usb_control_msg(port->serial->dev,
2086 usb_sndctrlpipe(port->serial->dev, 0),
2087 FTDI_SIO_SET_DATA_REQUEST,
2088 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2089 urb_value , priv->interface,
2090 buf, 0, WDR_TIMEOUT) < 0) {
2091 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2092 "(state was %d)\n", __func__, break_state);
2093 }
2094
2095 dbg("%s break state is %d - urb is %d", __func__,
2096 break_state, urb_value);
2097
2098 }
2099
2100
2101 /* old_termios contains the original termios settings and tty->termios contains
2102 * the new setting to be used
2103 * WARNING: set_termios calls this with old_termios in kernel space
2104 */
2105
2106 static void ftdi_set_termios(struct tty_struct *tty,
2107 struct usb_serial_port *port, struct ktermios *old_termios)
2108 { /* ftdi_termios */
2109 struct usb_device *dev = port->serial->dev;
2110 struct ftdi_private *priv = usb_get_serial_port_data(port);
2111 struct ktermios *termios = tty->termios;
2112 unsigned int cflag = termios->c_cflag;
2113 __u16 urb_value; /* will hold the new flags */
2114 char buf[1]; /* Perhaps I should dynamically alloc this? */
2115
2116 /* Added for xon/xoff support */
2117 unsigned int iflag = termios->c_iflag;
2118 unsigned char vstop;
2119 unsigned char vstart;
2120
2121 dbg("%s", __func__);
2122
2123 /* Force baud rate if this device requires it, unless it is set to
2124 B0. */
2125 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2126 dbg("%s: forcing baud rate for this device", __func__);
2127 tty_encode_baud_rate(tty, priv->force_baud,
2128 priv->force_baud);
2129 }
2130
2131 /* Force RTS-CTS if this device requires it. */
2132 if (priv->force_rtscts) {
2133 dbg("%s: forcing rtscts for this device", __func__);
2134 termios->c_cflag |= CRTSCTS;
2135 }
2136
2137 cflag = termios->c_cflag;
2138
2139 /* FIXME -For this cut I don't care if the line is really changing or
2140 not - so just do the change regardless - should be able to
2141 compare old_termios and tty->termios */
2142 /* NOTE These routines can get interrupted by
2143 ftdi_sio_read_bulk_callback - need to examine what this means -
2144 don't see any problems yet */
2145
2146 /* Set number of data bits, parity, stop bits */
2147
2148 termios->c_cflag &= ~CMSPAR;
2149
2150 urb_value = 0;
2151 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2152 FTDI_SIO_SET_DATA_STOP_BITS_1);
2153 urb_value |= (cflag & PARENB ?
2154 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2155 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2156 FTDI_SIO_SET_DATA_PARITY_NONE);
2157 if (cflag & CSIZE) {
2158 switch (cflag & CSIZE) {
2159 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2160 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2161 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2162 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2163 default:
2164 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
2165 }
2166 }
2167
2168 /* This is needed by the break command since it uses the same command
2169 - but is or'ed with this value */
2170 priv->last_set_data_urb_value = urb_value;
2171
2172 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2173 FTDI_SIO_SET_DATA_REQUEST,
2174 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2175 urb_value , priv->interface,
2176 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
2177 dev_err(&port->dev, "%s FAILED to set "
2178 "databits/stopbits/parity\n", __func__);
2179 }
2180
2181 /* Now do the baudrate */
2182 if ((cflag & CBAUD) == B0) {
2183 /* Disable flow control */
2184 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2185 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2186 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2187 0, priv->interface,
2188 buf, 0, WDR_TIMEOUT) < 0) {
2189 dev_err(&port->dev,
2190 "%s error from disable flowcontrol urb\n",
2191 __func__);
2192 }
2193 /* Drop RTS and DTR */
2194 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2195 } else {
2196 /* set the baudrate determined before */
2197 if (change_speed(tty, port))
2198 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2199 __func__);
2200 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2201 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2202 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2203 }
2204
2205 /* Set flow control */
2206 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2207 if (cflag & CRTSCTS) {
2208 dbg("%s Setting to CRTSCTS flow control", __func__);
2209 if (usb_control_msg(dev,
2210 usb_sndctrlpipe(dev, 0),
2211 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2212 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2213 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2214 buf, 0, WDR_TIMEOUT) < 0) {
2215 dev_err(&port->dev,
2216 "urb failed to set to rts/cts flow control\n");
2217 }
2218
2219 } else {
2220 /*
2221 * Xon/Xoff code
2222 *
2223 * Check the IXOFF status in the iflag component of the
2224 * termios structure. If IXOFF is not set, the pre-xon/xoff
2225 * code is executed.
2226 */
2227 if (iflag & IXOFF) {
2228 dbg("%s request to enable xonxoff iflag=%04x",
2229 __func__, iflag);
2230 /* Try to enable the XON/XOFF on the ftdi_sio
2231 * Set the vstart and vstop -- could have been done up
2232 * above where a lot of other dereferencing is done but
2233 * that would be very inefficient as vstart and vstop
2234 * are not always needed.
2235 */
2236 vstart = termios->c_cc[VSTART];
2237 vstop = termios->c_cc[VSTOP];
2238 urb_value = (vstop << 8) | (vstart);
2239
2240 if (usb_control_msg(dev,
2241 usb_sndctrlpipe(dev, 0),
2242 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2243 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2244 urb_value , (FTDI_SIO_XON_XOFF_HS
2245 | priv->interface),
2246 buf, 0, WDR_TIMEOUT) < 0) {
2247 dev_err(&port->dev, "urb failed to set to "
2248 "xon/xoff flow control\n");
2249 }
2250 } else {
2251 /* else clause to only run if cflag ! CRTSCTS and iflag
2252 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2253 * stack - not by device */
2254 dbg("%s Turning off hardware flow control", __func__);
2255 if (usb_control_msg(dev,
2256 usb_sndctrlpipe(dev, 0),
2257 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2258 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2259 0, priv->interface,
2260 buf, 0, WDR_TIMEOUT) < 0) {
2261 dev_err(&port->dev,
2262 "urb failed to clear flow control\n");
2263 }
2264 }
2265
2266 }
2267 return;
2268 }
2269
2270 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2271 {
2272 struct usb_serial_port *port = tty->driver_data;
2273 struct ftdi_private *priv = usb_get_serial_port_data(port);
2274 unsigned char buf[2];
2275 int ret;
2276
2277 dbg("%s TIOCMGET", __func__);
2278 switch (priv->chip_type) {
2279 case SIO:
2280 /* Request the status from the device */
2281 ret = usb_control_msg(port->serial->dev,
2282 usb_rcvctrlpipe(port->serial->dev, 0),
2283 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2284 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2285 0, 0,
2286 buf, 1, WDR_TIMEOUT);
2287 if (ret < 0) {
2288 dbg("%s Could not get modem status of device - err: %d", __func__,
2289 ret);
2290 return ret;
2291 }
2292 break;
2293 case FT8U232AM:
2294 case FT232BM:
2295 case FT2232C:
2296 case FT232RL:
2297 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2298 value) - in the same format as the data returned from the in
2299 point */
2300 ret = usb_control_msg(port->serial->dev,
2301 usb_rcvctrlpipe(port->serial->dev, 0),
2302 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2303 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2304 0, priv->interface,
2305 buf, 2, WDR_TIMEOUT);
2306 if (ret < 0) {
2307 dbg("%s Could not get modem status of device - err: %d", __func__,
2308 ret);
2309 return ret;
2310 }
2311 break;
2312 default:
2313 return -EFAULT;
2314 break;
2315 }
2316
2317 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2318 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2319 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2320 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2321 priv->last_dtr_rts;
2322 }
2323
2324 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2325 unsigned int set, unsigned int clear)
2326 {
2327 struct usb_serial_port *port = tty->driver_data;
2328 dbg("%s TIOCMSET", __func__);
2329 return update_mctrl(port, set, clear);
2330 }
2331
2332
2333 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2334 unsigned int cmd, unsigned long arg)
2335 {
2336 struct usb_serial_port *port = tty->driver_data;
2337 struct ftdi_private *priv = usb_get_serial_port_data(port);
2338
2339 dbg("%s cmd 0x%04x", __func__, cmd);
2340
2341 /* Based on code from acm.c and others */
2342 switch (cmd) {
2343
2344 case TIOCGSERIAL: /* gets serial port data */
2345 return get_serial_info(port,
2346 (struct serial_struct __user *) arg);
2347
2348 case TIOCSSERIAL: /* sets serial port data */
2349 return set_serial_info(tty, port,
2350 (struct serial_struct __user *) arg);
2351
2352 /*
2353 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2354 * - mask passed in arg for lines of interest
2355 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2356 * Caller should use TIOCGICOUNT to see which one it was.
2357 *
2358 * This code is borrowed from linux/drivers/char/serial.c
2359 */
2360 case TIOCMIWAIT:
2361 while (priv != NULL) {
2362 interruptible_sleep_on(&priv->delta_msr_wait);
2363 /* see if a signal did it */
2364 if (signal_pending(current))
2365 return -ERESTARTSYS;
2366 else {
2367 char diff = priv->diff_status;
2368
2369 if (diff == 0)
2370 return -EIO; /* no change => error */
2371
2372 /* Consume all events */
2373 priv->diff_status = 0;
2374
2375 /* Return 0 if caller wanted to know about
2376 these bits */
2377 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2378 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2379 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2380 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2381 return 0;
2382 }
2383 /*
2384 * Otherwise caller can't care less about what
2385 * happened,and so we continue to wait for more
2386 * events.
2387 */
2388 }
2389 }
2390 return 0;
2391 default:
2392 break;
2393 }
2394 /* This is not necessarily an error - turns out the higher layers
2395 * will do some ioctls themselves (see comment above)
2396 */
2397 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2398 return -ENOIOCTLCMD;
2399 }
2400
2401 static void ftdi_throttle(struct tty_struct *tty)
2402 {
2403 struct usb_serial_port *port = tty->driver_data;
2404 struct ftdi_private *priv = usb_get_serial_port_data(port);
2405 unsigned long flags;
2406
2407 dbg("%s - port %d", __func__, port->number);
2408
2409 spin_lock_irqsave(&priv->rx_lock, flags);
2410 priv->rx_flags |= THROTTLED;
2411 spin_unlock_irqrestore(&priv->rx_lock, flags);
2412 }
2413
2414
2415 static void ftdi_unthrottle(struct tty_struct *tty)
2416 {
2417 struct usb_serial_port *port = tty->driver_data;
2418 struct ftdi_private *priv = usb_get_serial_port_data(port);
2419 int actually_throttled;
2420 unsigned long flags;
2421
2422 dbg("%s - port %d", __func__, port->number);
2423
2424 spin_lock_irqsave(&priv->rx_lock, flags);
2425 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2426 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2427 spin_unlock_irqrestore(&priv->rx_lock, flags);
2428
2429 if (actually_throttled)
2430 schedule_delayed_work(&priv->rx_work, 0);
2431 }
2432
2433 static int __init ftdi_init(void)
2434 {
2435 int retval;
2436
2437 dbg("%s", __func__);
2438 if (vendor > 0 && product > 0) {
2439 /* Add user specified VID/PID to reserved element of table. */
2440 int i;
2441 for (i = 0; id_table_combined[i].idVendor; i++)
2442 ;
2443 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2444 id_table_combined[i].idVendor = vendor;
2445 id_table_combined[i].idProduct = product;
2446 }
2447 retval = usb_serial_register(&ftdi_sio_device);
2448 if (retval)
2449 goto failed_sio_register;
2450 retval = usb_register(&ftdi_driver);
2451 if (retval)
2452 goto failed_usb_register;
2453
2454 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2455 DRIVER_DESC "\n");
2456 return 0;
2457 failed_usb_register:
2458 usb_serial_deregister(&ftdi_sio_device);
2459 failed_sio_register:
2460 return retval;
2461 }
2462
2463
2464 static void __exit ftdi_exit(void)
2465 {
2466
2467 dbg("%s", __func__);
2468
2469 usb_deregister(&ftdi_driver);
2470 usb_serial_deregister(&ftdi_sio_device);
2471
2472 }
2473
2474
2475 module_init(ftdi_init);
2476 module_exit(ftdi_exit);
2477
2478 MODULE_AUTHOR(DRIVER_AUTHOR);
2479 MODULE_DESCRIPTION(DRIVER_DESC);
2480 MODULE_LICENSE("GPL");
2481
2482 module_param(debug, bool, S_IRUGO | S_IWUSR);
2483 MODULE_PARM_DESC(debug, "Debug enabled or not");
2484 module_param(vendor, ushort, 0);
2485 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2486 __MODULE_STRING(FTDI_VID)")");
2487 module_param(product, ushort, 0);
2488 MODULE_PARM_DESC(product, "User specified product ID");
2489
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree