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kmemtrace: SLOB hooks.
[linux-2.6/kmemtrace.git] / drivers / usb / serial / ftdi_sio.c
blob0ff4a3971e45a95ce0e7047a0e6bb7411646c493
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 driver
16 *
17 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
18 * and extra documentation
19 *
20 * Change entries from 2004 and earlier can be found in versions of this
21 * file in kernel versions prior to the 2.6.24 release.
22 *
23 */
24
25 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
26 /* Thanx to FTDI for so kindly providing details of the protocol required */
27 /* to talk to the device */
28 /* Thanx to gkh and the rest of the usb dev group for all code I have assimilated :-) */
29
30 #include <linux/kernel.h>
31 #include <linux/errno.h>
32 #include <linux/init.h>
33 #include <linux/slab.h>
34 #include <linux/tty.h>
35 #include <linux/tty_driver.h>
36 #include <linux/tty_flip.h>
37 #include <linux/module.h>
38 #include <linux/spinlock.h>
39 #include <asm/uaccess.h>
40 #include <linux/usb.h>
41 #include <linux/serial.h>
42 #include <linux/usb/serial.h>
43 #include "ftdi_sio.h"
44
45 /*
46 * Version Information
47 */
48 #define DRIVER_VERSION "v1.4.3"
49 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
50 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
51
52 static int debug;
53 static __u16 vendor = FTDI_VID;
54 static __u16 product;
55
56 struct ftdi_private {
57 ftdi_chip_type_t chip_type;
58 /* type of the device, either SIO or FT8U232AM */
59 int baud_base; /* baud base clock for divisor setting */
60 int custom_divisor; /* custom_divisor kludge, this is for baud_base (different from what goes to the chip!) */
61 __u16 last_set_data_urb_value ;
62 /* the last data state set - needed for doing a break */
63 int write_offset; /* This is the offset in the usb data block to write the serial data -
64 * it is different between devices
65 */
66 int flags; /* some ASYNC_xxxx flags are supported */
67 unsigned long last_dtr_rts; /* saved modem control outputs */
68 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
69 char prev_status, diff_status; /* Used for TIOCMIWAIT */
70 __u8 rx_flags; /* receive state flags (throttling) */
71 spinlock_t rx_lock; /* spinlock for receive state */
72 struct delayed_work rx_work;
73 struct usb_serial_port *port;
74 int rx_processed;
75 unsigned long rx_bytes;
76
77 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
78
79 speed_t force_baud; /* if non-zero, force the baud rate to this value */
80 int force_rtscts; /* if non-zero, force RTS-CTS to always be enabled */
81
82 spinlock_t tx_lock; /* spinlock for transmit state */
83 unsigned long tx_bytes;
84 unsigned long tx_outstanding_bytes;
85 unsigned long tx_outstanding_urbs;
86 };
87
88 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
89 struct ftdi_sio_quirk {
90 int (*probe)(struct usb_serial *);
91 void (*port_probe)(struct ftdi_private *); /* Special settings for probed ports. */
92 };
93
94 static int ftdi_jtag_probe (struct usb_serial *serial);
95 static int ftdi_mtxorb_hack_setup (struct usb_serial *serial);
96 static void ftdi_USB_UIRT_setup (struct ftdi_private *priv);
97 static void ftdi_HE_TIRA1_setup (struct ftdi_private *priv);
98
99 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
100 .probe = ftdi_jtag_probe,
101 };
102
103 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
104 .probe = ftdi_mtxorb_hack_setup,
105 };
106
107 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
108 .port_probe = ftdi_USB_UIRT_setup,
109 };
110
111 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
112 .port_probe = ftdi_HE_TIRA1_setup,
113 };
114
115 /*
116 * The 8U232AM has the same API as the sio except for:
117 * - it can support MUCH higher baudrates; up to:
118 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
119 * o 230400 at 12MHz
120 * so .. 8U232AM's baudrate setting codes are different
121 * - it has a two byte status code.
122 * - it returns characters every 16ms (the FTDI does it every 40ms)
123 *
124 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
125 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
126 * combinations in both tables.
127 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
128 * but I don't know if those ever went into mass production. [Ian Abbott]
129 */
130
131
132
133 static struct usb_device_id id_table_combined [] = {
134 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
135 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
136 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
137 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
138 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
139 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
140 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
141 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
142 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
143 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
144 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
145 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
146 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
147 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
148 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
149 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
157 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
158 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
168 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
169 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
170 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
177 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0100_PID) },
178 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0101_PID) },
179 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0102_PID) },
180 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0103_PID) },
181 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0104_PID) },
182 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0105_PID) },
183 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0106_PID) },
184 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0107_PID) },
185 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0108_PID) },
186 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0109_PID) },
187 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010A_PID) },
188 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010B_PID) },
189 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010C_PID) },
190 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010D_PID) },
191 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010E_PID) },
192 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010F_PID) },
193 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0110_PID) },
194 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0111_PID) },
195 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0112_PID) },
196 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0113_PID) },
197 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0114_PID) },
198 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0115_PID) },
199 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0116_PID) },
200 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0117_PID) },
201 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0118_PID) },
202 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0119_PID) },
203 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011A_PID) },
204 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011B_PID) },
205 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011C_PID) },
206 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011D_PID) },
207 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011E_PID) },
208 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011F_PID) },
209 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0120_PID) },
210 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0121_PID) },
211 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0122_PID) },
212 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0123_PID) },
213 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0124_PID) },
214 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0125_PID) },
215 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0126_PID) },
216 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0127_PID),
217 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
218 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0128_PID) },
219 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0129_PID) },
220 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012A_PID) },
221 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012B_PID) },
222 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012C_PID),
223 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
224 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012D_PID) },
225 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012E_PID) },
226 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012F_PID) },
227 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0130_PID) },
228 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0131_PID) },
229 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0132_PID) },
230 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0133_PID) },
231 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0134_PID) },
232 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0135_PID) },
233 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0136_PID) },
234 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0137_PID) },
235 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0138_PID) },
236 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0139_PID) },
237 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013A_PID) },
238 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013B_PID) },
239 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013C_PID) },
240 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013D_PID) },
241 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013E_PID) },
242 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013F_PID) },
243 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0140_PID) },
244 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0141_PID) },
245 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0142_PID) },
246 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0143_PID) },
247 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0144_PID) },
248 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0145_PID) },
249 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0146_PID) },
250 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0147_PID) },
251 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0148_PID) },
252 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0149_PID) },
253 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014A_PID) },
254 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014B_PID) },
255 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014C_PID) },
256 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014D_PID) },
257 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014E_PID) },
258 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014F_PID) },
259 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0150_PID) },
260 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0151_PID) },
261 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0152_PID) },
262 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0153_PID),
263 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
264 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0154_PID),
265 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
266 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0155_PID),
267 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
268 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0156_PID),
269 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
270 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0157_PID),
271 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
272 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0158_PID),
273 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
274 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0159_PID) },
275 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015A_PID) },
276 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015B_PID) },
277 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015C_PID) },
278 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015D_PID) },
279 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015E_PID) },
280 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015F_PID) },
281 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0160_PID) },
282 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0161_PID) },
283 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0162_PID) },
284 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0163_PID) },
285 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0164_PID) },
286 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0165_PID) },
287 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0166_PID) },
288 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0167_PID) },
289 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0168_PID) },
290 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0169_PID) },
291 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016A_PID) },
292 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016B_PID) },
293 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016C_PID) },
294 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016D_PID) },
295 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016E_PID) },
296 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016F_PID) },
297 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0170_PID) },
298 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0171_PID) },
299 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0172_PID) },
300 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0173_PID) },
301 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0174_PID) },
302 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0175_PID) },
303 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0176_PID) },
304 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0177_PID) },
305 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0178_PID) },
306 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0179_PID) },
307 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017A_PID) },
308 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017B_PID) },
309 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017C_PID) },
310 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017D_PID) },
311 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017E_PID) },
312 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017F_PID) },
313 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0180_PID) },
314 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0181_PID) },
315 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0182_PID) },
316 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0183_PID) },
317 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0184_PID) },
318 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0185_PID) },
319 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0186_PID) },
320 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0187_PID) },
321 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0188_PID) },
322 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0189_PID) },
323 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018A_PID) },
324 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018B_PID) },
325 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018C_PID) },
326 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018D_PID) },
327 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018E_PID) },
328 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018F_PID) },
329 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0190_PID) },
330 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0191_PID) },
331 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0192_PID) },
332 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0193_PID) },
333 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0194_PID) },
334 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0195_PID) },
335 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0196_PID) },
336 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0197_PID) },
337 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0198_PID) },
338 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0199_PID) },
339 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019A_PID) },
340 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019B_PID) },
341 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019C_PID) },
342 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019D_PID) },
343 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019E_PID) },
344 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019F_PID) },
345 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A0_PID) },
346 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A1_PID) },
347 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A2_PID) },
348 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A3_PID) },
349 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A4_PID) },
350 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A5_PID) },
351 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A6_PID) },
352 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A7_PID) },
353 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A8_PID) },
354 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A9_PID) },
355 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AA_PID) },
356 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AB_PID) },
357 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AC_PID) },
358 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AD_PID) },
359 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AE_PID) },
360 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AF_PID) },
361 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B0_PID) },
362 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B1_PID) },
363 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B2_PID) },
364 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B3_PID) },
365 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B4_PID) },
366 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B5_PID) },
367 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B6_PID) },
368 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B7_PID) },
369 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B8_PID) },
370 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B9_PID) },
371 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BA_PID) },
372 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BB_PID) },
373 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BC_PID) },
374 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BD_PID) },
375 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BE_PID) },
376 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BF_PID) },
377 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C0_PID) },
378 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C1_PID) },
379 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C2_PID) },
380 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C3_PID) },
381 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C4_PID) },
382 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C5_PID) },
383 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C6_PID) },
384 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C7_PID) },
385 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C8_PID) },
386 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C9_PID) },
387 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CA_PID) },
388 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CB_PID) },
389 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CC_PID) },
390 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CD_PID) },
391 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CE_PID) },
392 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CF_PID) },
393 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D0_PID) },
394 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D1_PID) },
395 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D2_PID) },
396 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D3_PID) },
397 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D4_PID) },
398 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D5_PID) },
399 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D6_PID) },
400 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D7_PID) },
401 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D8_PID) },
402 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D9_PID) },
403 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DA_PID) },
404 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DB_PID) },
405 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DC_PID) },
406 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DD_PID) },
407 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DE_PID) },
408 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DF_PID) },
409 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E0_PID) },
410 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E1_PID) },
411 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E2_PID) },
412 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E3_PID) },
413 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E4_PID) },
414 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E5_PID) },
415 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E6_PID) },
416 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E7_PID) },
417 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E8_PID) },
418 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E9_PID) },
419 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EA_PID) },
420 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EB_PID) },
421 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EC_PID) },
422 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01ED_PID) },
423 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EE_PID) },
424 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EF_PID) },
425 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F0_PID) },
426 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F1_PID) },
427 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F2_PID) },
428 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F3_PID) },
429 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F4_PID) },
430 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F5_PID) },
431 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F6_PID) },
432 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F7_PID) },
433 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F8_PID) },
434 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F9_PID) },
435 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FA_PID) },
436 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FB_PID) },
437 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FC_PID) },
438 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FD_PID) },
439 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FE_PID) },
440 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FF_PID) },
441 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
442 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
443 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
444 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
445 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
446 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
447 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
448 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
449 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
450 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
451 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
452 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
453 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
454 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
455 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
456 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
457 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
492 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
493 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
494 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
495 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
496 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
497 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
498 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
499 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
500 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
501 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
502 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
503 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
504 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
505 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
506 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
507 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
508 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
509 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
510 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
511 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
512 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
513 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
514 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
532 /*
533 * Due to many user requests for multiple ELV devices we enable
534 * them by default.
535 */
536 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
556 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
557 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
558 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
559 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
560 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
564 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
565 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
566 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
567 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
568 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
570 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
572 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
573 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
574 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
575 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
576 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
578 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
579 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
580 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
581 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
582 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
583 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
584 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
585 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
586 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
587 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
588 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
589 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
590 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
592 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
593 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
594 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
595 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
596 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
597 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
598 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
599 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
600 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
601 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
607 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
608 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
609 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
610 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
612 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
614 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
615 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
617 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
618 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
619 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
621 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
622 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
623 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
626 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
627 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
628 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
629 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
630 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
631 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
632 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
633 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
634 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
635 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
636 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
637 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
638 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
639 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
640 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
641 { }, /* Optional parameter entry */
642 { } /* Terminating entry */
643 };
644
645 MODULE_DEVICE_TABLE (usb, id_table_combined);
646
647 static struct usb_driver ftdi_driver = {
648 .name = "ftdi_sio",
649 .probe = usb_serial_probe,
650 .disconnect = usb_serial_disconnect,
651 .id_table = id_table_combined,
652 .no_dynamic_id = 1,
653 };
654
655 static const char *ftdi_chip_name[] = {
656 [SIO] = "SIO", /* the serial part of FT8U100AX */
657 [FT8U232AM] = "FT8U232AM",
658 [FT232BM] = "FT232BM",
659 [FT2232C] = "FT2232C",
660 [FT232RL] = "FT232RL",
661 };
662
663
664 /* Constants for read urb and write urb */
665 #define BUFSZ 512
666 #define PKTSZ 64
667
668 /* rx_flags */
669 #define THROTTLED 0x01
670 #define ACTUALLY_THROTTLED 0x02
671
672 /* Used for TIOCMIWAIT */
673 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
674 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
675 /* End TIOCMIWAIT */
676
677 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
678 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
679
680 /* function prototypes for a FTDI serial converter */
681 static int ftdi_sio_probe (struct usb_serial *serial, const struct usb_device_id *id);
682 static void ftdi_shutdown (struct usb_serial *serial);
683 static int ftdi_sio_port_probe (struct usb_serial_port *port);
684 static int ftdi_sio_port_remove (struct usb_serial_port *port);
685 static int ftdi_open (struct usb_serial_port *port, struct file *filp);
686 static void ftdi_close (struct usb_serial_port *port, struct file *filp);
687 static int ftdi_write (struct usb_serial_port *port, const unsigned char *buf, int count);
688 static int ftdi_write_room (struct usb_serial_port *port);
689 static int ftdi_chars_in_buffer (struct usb_serial_port *port);
690 static void ftdi_write_bulk_callback (struct urb *urb);
691 static void ftdi_read_bulk_callback (struct urb *urb);
692 static void ftdi_process_read (struct work_struct *work);
693 static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios * old);
694 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file);
695 static int ftdi_tiocmset (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear);
696 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
697 static void ftdi_break_ctl (struct usb_serial_port *port, int break_state );
698 static void ftdi_throttle (struct usb_serial_port *port);
699 static void ftdi_unthrottle (struct usb_serial_port *port);
700
701 static unsigned short int ftdi_232am_baud_base_to_divisor (int baud, int base);
702 static unsigned short int ftdi_232am_baud_to_divisor (int baud);
703 static __u32 ftdi_232bm_baud_base_to_divisor (int baud, int base);
704 static __u32 ftdi_232bm_baud_to_divisor (int baud);
705
706 static struct usb_serial_driver ftdi_sio_device = {
707 .driver = {
708 .owner = THIS_MODULE,
709 .name = "ftdi_sio",
710 },
711 .description = "FTDI USB Serial Device",
712 .usb_driver = &ftdi_driver ,
713 .id_table = id_table_combined,
714 .num_ports = 1,
715 .probe = ftdi_sio_probe,
716 .port_probe = ftdi_sio_port_probe,
717 .port_remove = ftdi_sio_port_remove,
718 .open = ftdi_open,
719 .close = ftdi_close,
720 .throttle = ftdi_throttle,
721 .unthrottle = ftdi_unthrottle,
722 .write = ftdi_write,
723 .write_room = ftdi_write_room,
724 .chars_in_buffer = ftdi_chars_in_buffer,
725 .read_bulk_callback = ftdi_read_bulk_callback,
726 .write_bulk_callback = ftdi_write_bulk_callback,
727 .tiocmget = ftdi_tiocmget,
728 .tiocmset = ftdi_tiocmset,
729 .ioctl = ftdi_ioctl,
730 .set_termios = ftdi_set_termios,
731 .break_ctl = ftdi_break_ctl,
732 .shutdown = ftdi_shutdown,
733 };
734
735
736 #define WDR_TIMEOUT 5000 /* default urb timeout */
737 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
738
739 /* High and low are for DTR, RTS etc etc */
740 #define HIGH 1
741 #define LOW 0
742
743 /* number of outstanding urbs to prevent userspace DoS from happening */
744 #define URB_UPPER_LIMIT 42
745
746 /*
747 * ***************************************************************************
748 * Utility functions
749 * ***************************************************************************
750 */
751
752 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
753 {
754 unsigned short int divisor;
755 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
756 if ((divisor3 & 0x7) == 7) divisor3 ++; // round x.7/8 up to x+1
757 divisor = divisor3 >> 3;
758 divisor3 &= 0x7;
759 if (divisor3 == 1) divisor |= 0xc000; else // 0.125
760 if (divisor3 >= 4) divisor |= 0x4000; else // 0.5
761 if (divisor3 != 0) divisor |= 0x8000; // 0.25
762 if (divisor == 1) divisor = 0; /* special case for maximum baud rate */
763 return divisor;
764 }
765
766 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
767 {
768 return(ftdi_232am_baud_base_to_divisor(baud, 48000000));
769 }
770
771 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
772 {
773 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
774 __u32 divisor;
775 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
776 divisor = divisor3 >> 3;
777 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
778 /* Deal with special cases for highest baud rates. */
779 if (divisor == 1) divisor = 0; else // 1.0
780 if (divisor == 0x4001) divisor = 1; // 1.5
781 return divisor;
782 }
783
784 static __u32 ftdi_232bm_baud_to_divisor(int baud)
785 {
786 return(ftdi_232bm_baud_base_to_divisor(baud, 48000000));
787 }
788
789 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
790 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
791
792 static int update_mctrl(struct usb_serial_port *port, unsigned int set, unsigned int clear)
793 {
794 struct ftdi_private *priv = usb_get_serial_port_data(port);
795 char *buf;
796 unsigned urb_value;
797 int rv;
798
799 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
800 dbg("%s - DTR|RTS not being set|cleared", __func__);
801 return 0; /* no change */
802 }
803
804 buf = kmalloc(1, GFP_NOIO);
805 if (!buf)
806 return -ENOMEM;
807
808 clear &= ~set; /* 'set' takes precedence over 'clear' */
809 urb_value = 0;
810 if (clear & TIOCM_DTR)
811 urb_value |= FTDI_SIO_SET_DTR_LOW;
812 if (clear & TIOCM_RTS)
813 urb_value |= FTDI_SIO_SET_RTS_LOW;
814 if (set & TIOCM_DTR)
815 urb_value |= FTDI_SIO_SET_DTR_HIGH;
816 if (set & TIOCM_RTS)
817 urb_value |= FTDI_SIO_SET_RTS_HIGH;
818 rv = usb_control_msg(port->serial->dev,
819 usb_sndctrlpipe(port->serial->dev, 0),
820 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
821 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
822 urb_value, priv->interface,
823 buf, 0, WDR_TIMEOUT);
824
825 kfree(buf);
826 if (rv < 0) {
827 err("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
828 __func__,
829 (set & TIOCM_DTR) ? "HIGH" :
830 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
831 (set & TIOCM_RTS) ? "HIGH" :
832 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
833 } else {
834 dbg("%s - DTR %s, RTS %s", __func__,
835 (set & TIOCM_DTR) ? "HIGH" :
836 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
837 (set & TIOCM_RTS) ? "HIGH" :
838 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
839 /* FIXME: locking on last_dtr_rts */
840 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
841 }
842 return rv;
843 }
844
845
846 static __u32 get_ftdi_divisor(struct usb_serial_port * port);
847
848
849 static int change_speed(struct usb_serial_port *port)
850 {
851 struct ftdi_private *priv = usb_get_serial_port_data(port);
852 char *buf;
853 __u16 urb_value;
854 __u16 urb_index;
855 __u32 urb_index_value;
856 int rv;
857
858 buf = kmalloc(1, GFP_NOIO);
859 if (!buf)
860 return -ENOMEM;
861
862 urb_index_value = get_ftdi_divisor(port);
863 urb_value = (__u16)urb_index_value;
864 urb_index = (__u16)(urb_index_value >> 16);
865 if (priv->interface) { /* FT2232C */
866 urb_index = (__u16)((urb_index << 8) | priv->interface);
867 }
868
869 rv = usb_control_msg(port->serial->dev,
870 usb_sndctrlpipe(port->serial->dev, 0),
871 FTDI_SIO_SET_BAUDRATE_REQUEST,
872 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
873 urb_value, urb_index,
874 buf, 0, WDR_SHORT_TIMEOUT);
875
876 kfree(buf);
877 return rv;
878 }
879
880
881 static __u32 get_ftdi_divisor(struct usb_serial_port * port)
882 { /* get_ftdi_divisor */
883 struct ftdi_private *priv = usb_get_serial_port_data(port);
884 __u32 div_value = 0;
885 int div_okay = 1;
886 int baud;
887
888 /*
889 * The logic involved in setting the baudrate can be cleanly split in 3 steps.
890 * Obtaining the actual baud rate is a little tricky since unix traditionally
891 * somehow ignored the possibility to set non-standard baud rates.
892 * 1. Standard baud rates are set in tty->termios->c_cflag
893 * 2. If these are not enough, you can set any speed using alt_speed as follows:
894 * - set tty->termios->c_cflag speed to B38400
895 * - set your real speed in tty->alt_speed; it gets ignored when
896 * alt_speed==0, (or)
897 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
898 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], this just
899 * sets alt_speed to (HI: 57600, VHI: 115200, SHI: 230400, WARP: 460800)
900 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
901 * 3. You can also set baud rate by setting custom divisor as follows
902 * - set tty->termios->c_cflag speed to B38400
903 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
904 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
905 * o custom_divisor set to baud_base / your_new_baudrate
906 * ** Step 3 is done courtesy of code borrowed from serial.c - I should really
907 * spend some time and separate+move this common code to serial.c, it is
908 * replicated in nearly every serial driver you see.
909 */
910
911 /* 1. Get the baud rate from the tty settings, this observes alt_speed hack */
912
913 baud = tty_get_baud_rate(port->tty);
914 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
915
916 /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */
917
918 if (baud == 38400 &&
919 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
920 (priv->custom_divisor)) {
921 baud = priv->baud_base / priv->custom_divisor;
922 dbg("%s - custom divisor %d sets baud rate to %d", __func__, priv->custom_divisor, baud);
923 }
924
925 /* 3. Convert baudrate to device-specific divisor */
926
927 if (!baud) baud = 9600;
928 switch(priv->chip_type) {
929 case SIO: /* SIO chip */
930 switch(baud) {
931 case 300: div_value = ftdi_sio_b300; break;
932 case 600: div_value = ftdi_sio_b600; break;
933 case 1200: div_value = ftdi_sio_b1200; break;
934 case 2400: div_value = ftdi_sio_b2400; break;
935 case 4800: div_value = ftdi_sio_b4800; break;
936 case 9600: div_value = ftdi_sio_b9600; break;
937 case 19200: div_value = ftdi_sio_b19200; break;
938 case 38400: div_value = ftdi_sio_b38400; break;
939 case 57600: div_value = ftdi_sio_b57600; break;
940 case 115200: div_value = ftdi_sio_b115200; break;
941 } /* baud */
942 if (div_value == 0) {
943 dbg("%s - Baudrate (%d) requested is not supported", __func__, baud);
944 div_value = ftdi_sio_b9600;
945 baud = 9600;
946 div_okay = 0;
947 }
948 break;
949 case FT8U232AM: /* 8U232AM chip */
950 if (baud <= 3000000) {
951 div_value = ftdi_232am_baud_to_divisor(baud);
952 } else {
953 dbg("%s - Baud rate too high!", __func__);
954 baud = 9600;
955 div_value = ftdi_232am_baud_to_divisor(9600);
956 div_okay = 0;
957 }
958 break;
959 case FT232BM: /* FT232BM chip */
960 case FT2232C: /* FT2232C chip */
961 case FT232RL:
962 if (baud <= 3000000) {
963 div_value = ftdi_232bm_baud_to_divisor(baud);
964 } else {
965 dbg("%s - Baud rate too high!", __func__);
966 div_value = ftdi_232bm_baud_to_divisor(9600);
967 div_okay = 0;
968 baud = 9600;
969 }
970 break;
971 } /* priv->chip_type */
972
973 if (div_okay) {
974 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
975 __func__, baud, (unsigned long)div_value,
976 ftdi_chip_name[priv->chip_type]);
977 }
978
979 tty_encode_baud_rate(port->tty, baud, baud);
980 return(div_value);
981 }
982
983
984 static int get_serial_info(struct usb_serial_port * port, struct serial_struct __user * retinfo)
985 {
986 struct ftdi_private *priv = usb_get_serial_port_data(port);
987 struct serial_struct tmp;
988
989 if (!retinfo)
990 return -EFAULT;
991 memset(&tmp, 0, sizeof(tmp));
992 tmp.flags = priv->flags;
993 tmp.baud_base = priv->baud_base;
994 tmp.custom_divisor = priv->custom_divisor;
995 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
996 return -EFAULT;
997 return 0;
998 } /* get_serial_info */
999
1000
1001 static int set_serial_info(struct usb_serial_port * port, struct serial_struct __user * newinfo)
1002 { /* set_serial_info */
1003 struct ftdi_private *priv = usb_get_serial_port_data(port);
1004 struct serial_struct new_serial;
1005 struct ftdi_private old_priv;
1006
1007 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1008 return -EFAULT;
1009 old_priv = * priv;
1010
1011 /* Do error checking and permission checking */
1012
1013 if (!capable(CAP_SYS_ADMIN)) {
1014 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1015 (priv->flags & ~ASYNC_USR_MASK)))
1016 return -EPERM;
1017 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1018 (new_serial.flags & ASYNC_USR_MASK));
1019 priv->custom_divisor = new_serial.custom_divisor;
1020 goto check_and_exit;
1021 }
1022
1023 if ((new_serial.baud_base != priv->baud_base) &&
1024 (new_serial.baud_base < 9600))
1025 return -EINVAL;
1026
1027 /* Make the changes - these are privileged changes! */
1028
1029 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1030 (new_serial.flags & ASYNC_FLAGS));
1031 priv->custom_divisor = new_serial.custom_divisor;
1032
1033 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1034
1035 check_and_exit:
1036 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1037 (priv->flags & ASYNC_SPD_MASK)) {
1038 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1039 port->tty->alt_speed = 57600;
1040 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1041 port->tty->alt_speed = 115200;
1042 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1043 port->tty->alt_speed = 230400;
1044 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1045 port->tty->alt_speed = 460800;
1046 else
1047 port->tty->alt_speed = 0;
1048 }
1049 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1050 (priv->flags & ASYNC_SPD_MASK)) ||
1051 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1052 (old_priv.custom_divisor != priv->custom_divisor))) {
1053 change_speed(port);
1054 }
1055
1056 return (0);
1057
1058 } /* set_serial_info */
1059
1060
1061 /* Determine type of FTDI chip based on USB config and descriptor. */
1062 static void ftdi_determine_type(struct usb_serial_port *port)
1063 {
1064 struct ftdi_private *priv = usb_get_serial_port_data(port);
1065 struct usb_serial *serial = port->serial;
1066 struct usb_device *udev = serial->dev;
1067 unsigned version;
1068 unsigned interfaces;
1069
1070 /* Assume it is not the original SIO device for now. */
1071 priv->baud_base = 48000000 / 2;
1072 priv->write_offset = 0;
1073
1074 version = le16_to_cpu(udev->descriptor.bcdDevice);
1075 interfaces = udev->actconfig->desc.bNumInterfaces;
1076 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1077 version, interfaces);
1078 if (interfaces > 1) {
1079 int inter;
1080
1081 /* Multiple interfaces. Assume FT2232C. */
1082 priv->chip_type = FT2232C;
1083 /* Determine interface code. */
1084 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1085 if (inter == 0) {
1086 priv->interface = PIT_SIOA;
1087 } else {
1088 priv->interface = PIT_SIOB;
1089 }
1090 /* BM-type devices have a bug where bcdDevice gets set
1091 * to 0x200 when iSerialNumber is 0. */
1092 if (version < 0x500) {
1093 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1094 __func__);
1095 }
1096 } else if (version < 0x200) {
1097 /* Old device. Assume its the original SIO. */
1098 priv->chip_type = SIO;
1099 priv->baud_base = 12000000 / 16;
1100 priv->write_offset = 1;
1101 } else if (version < 0x400) {
1102 /* Assume its an FT8U232AM (or FT8U245AM) */
1103 /* (It might be a BM because of the iSerialNumber bug,
1104 * but it will still work as an AM device.) */
1105 priv->chip_type = FT8U232AM;
1106 } else if (version < 0x600) {
1107 /* Assume its an FT232BM (or FT245BM) */
1108 priv->chip_type = FT232BM;
1109 } else {
1110 /* Assume its an FT232R */
1111 priv->chip_type = FT232RL;
1112 }
1113 info("Detected %s", ftdi_chip_name[priv->chip_type]);
1114 }
1115
1116
1117 /*
1118 * ***************************************************************************
1119 * Sysfs Attribute
1120 * ***************************************************************************
1121 */
1122
1123 static ssize_t show_latency_timer(struct device *dev, struct device_attribute *attr, char *buf)
1124 {
1125 struct usb_serial_port *port = to_usb_serial_port(dev);
1126 struct ftdi_private *priv = usb_get_serial_port_data(port);
1127 struct usb_device *udev = port->serial->dev;
1128 unsigned short latency = 0;
1129 int rv = 0;
1130
1131
1132 dbg("%s",__func__);
1133
1134 rv = usb_control_msg(udev,
1135 usb_rcvctrlpipe(udev, 0),
1136 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1137 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1138 0, priv->interface,
1139 (char*) &latency, 1, WDR_TIMEOUT);
1140
1141 if (rv < 0) {
1142 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1143 return -EIO;
1144 }
1145 return sprintf(buf, "%i\n", latency);
1146 }
1147
1148 /* Write a new value of the latency timer, in units of milliseconds. */
1149 static ssize_t store_latency_timer(struct device *dev, struct device_attribute *attr, const char *valbuf,
1150 size_t count)
1151 {
1152 struct usb_serial_port *port = to_usb_serial_port(dev);
1153 struct ftdi_private *priv = usb_get_serial_port_data(port);
1154 struct usb_device *udev = port->serial->dev;
1155 char buf[1];
1156 int v = simple_strtoul(valbuf, NULL, 10);
1157 int rv = 0;
1158
1159 dbg("%s: setting latency timer = %i", __func__, v);
1160
1161 rv = usb_control_msg(udev,
1162 usb_sndctrlpipe(udev, 0),
1163 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1164 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1165 v, priv->interface,
1166 buf, 0, WDR_TIMEOUT);
1167
1168 if (rv < 0) {
1169 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1170 return -EIO;
1171 }
1172
1173 return count;
1174 }
1175
1176 /* Write an event character directly to the FTDI register. The ASCII
1177 value is in the low 8 bits, with the enable bit in the 9th bit. */
1178 static ssize_t store_event_char(struct device *dev, struct device_attribute *attr, const char *valbuf,
1179 size_t count)
1180 {
1181 struct usb_serial_port *port = to_usb_serial_port(dev);
1182 struct ftdi_private *priv = usb_get_serial_port_data(port);
1183 struct usb_device *udev = port->serial->dev;
1184 char buf[1];
1185 int v = simple_strtoul(valbuf, NULL, 10);
1186 int rv = 0;
1187
1188 dbg("%s: setting event char = %i", __func__, v);
1189
1190 rv = usb_control_msg(udev,
1191 usb_sndctrlpipe(udev, 0),
1192 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1193 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1194 v, priv->interface,
1195 buf, 0, WDR_TIMEOUT);
1196
1197 if (rv < 0) {
1198 dbg("Unable to write event character: %i", rv);
1199 return -EIO;
1200 }
1201
1202 return count;
1203 }
1204
1205 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, store_latency_timer);
1206 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1207
1208 static int create_sysfs_attrs(struct usb_serial_port *port)
1209 {
1210 struct ftdi_private *priv = usb_get_serial_port_data(port);
1211 int retval = 0;
1212
1213 dbg("%s",__func__);
1214
1215 /* XXX I've no idea if the original SIO supports the event_char
1216 * sysfs parameter, so I'm playing it safe. */
1217 if (priv->chip_type != SIO) {
1218 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1219 retval = device_create_file(&port->dev, &dev_attr_event_char);
1220 if ((!retval) &&
1221 (priv->chip_type == FT232BM ||
1222 priv->chip_type == FT2232C ||
1223 priv->chip_type == FT232RL)) {
1224 retval = device_create_file(&port->dev,
1225 &dev_attr_latency_timer);
1226 }
1227 }
1228 return retval;
1229 }
1230
1231 static void remove_sysfs_attrs(struct usb_serial_port *port)
1232 {
1233 struct ftdi_private *priv = usb_get_serial_port_data(port);
1234
1235 dbg("%s",__func__);
1236
1237 /* XXX see create_sysfs_attrs */
1238 if (priv->chip_type != SIO) {
1239 device_remove_file(&port->dev, &dev_attr_event_char);
1240 if (priv->chip_type == FT232BM ||
1241 priv->chip_type == FT2232C ||
1242 priv->chip_type == FT232RL) {
1243 device_remove_file(&port->dev, &dev_attr_latency_timer);
1244 }
1245 }
1246
1247 }
1248
1249 /*
1250 * ***************************************************************************
1251 * FTDI driver specific functions
1252 * ***************************************************************************
1253 */
1254
1255 /* Probe function to check for special devices */
1256 static int ftdi_sio_probe (struct usb_serial *serial, const struct usb_device_id *id)
1257 {
1258 struct ftdi_sio_quirk *quirk = (struct ftdi_sio_quirk *)id->driver_info;
1259
1260 if (quirk && quirk->probe) {
1261 int ret = quirk->probe(serial);
1262 if (ret != 0)
1263 return ret;
1264 }
1265
1266 usb_set_serial_data(serial, (void *)id->driver_info);
1267
1268 return 0;
1269 }
1270
1271 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1272 {
1273 struct ftdi_private *priv;
1274 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1275
1276
1277 dbg("%s",__func__);
1278
1279 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1280 if (!priv){
1281 err("%s- kmalloc(%Zd) failed.", __func__, sizeof(struct ftdi_private));
1282 return -ENOMEM;
1283 }
1284
1285 spin_lock_init(&priv->rx_lock);
1286 spin_lock_init(&priv->tx_lock);
1287 init_waitqueue_head(&priv->delta_msr_wait);
1288 /* This will push the characters through immediately rather
1289 than queue a task to deliver them */
1290 priv->flags = ASYNC_LOW_LATENCY;
1291
1292 if (quirk && quirk->port_probe)
1293 quirk->port_probe(priv);
1294
1295 /* Increase the size of read buffers */
1296 kfree(port->bulk_in_buffer);
1297 port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL);
1298 if (!port->bulk_in_buffer) {
1299 kfree (priv);
1300 return -ENOMEM;
1301 }
1302 if (port->read_urb) {
1303 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1304 port->read_urb->transfer_buffer_length = BUFSZ;
1305 }
1306
1307 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1308 priv->port = port;
1309
1310 /* Free port's existing write urb and transfer buffer. */
1311 if (port->write_urb) {
1312 usb_free_urb (port->write_urb);
1313 port->write_urb = NULL;
1314 }
1315 kfree(port->bulk_out_buffer);
1316 port->bulk_out_buffer = NULL;
1317
1318 usb_set_serial_port_data(port, priv);
1319
1320 ftdi_determine_type (port);
1321 create_sysfs_attrs(port);
1322 return 0;
1323 }
1324
1325 /* Setup for the USB-UIRT device, which requires hardwired
1326 * baudrate (38400 gets mapped to 312500) */
1327 /* Called from usbserial:serial_probe */
1328 static void ftdi_USB_UIRT_setup (struct ftdi_private *priv)
1329 {
1330 dbg("%s",__func__);
1331
1332 priv->flags |= ASYNC_SPD_CUST;
1333 priv->custom_divisor = 77;
1334 priv->force_baud = 38400;
1335 } /* ftdi_USB_UIRT_setup */
1336
1337 /* Setup for the HE-TIRA1 device, which requires hardwired
1338 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1339 static void ftdi_HE_TIRA1_setup (struct ftdi_private *priv)
1340 {
1341 dbg("%s",__func__);
1342
1343 priv->flags |= ASYNC_SPD_CUST;
1344 priv->custom_divisor = 240;
1345 priv->force_baud = 38400;
1346 priv->force_rtscts = 1;
1347 } /* ftdi_HE_TIRA1_setup */
1348
1349 /*
1350 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1351 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1352 * userspace using openocd.
1353 */
1354 static int ftdi_jtag_probe(struct usb_serial *serial)
1355 {
1356 struct usb_device *udev = serial->dev;
1357 struct usb_interface *interface = serial->interface;
1358
1359 dbg("%s",__func__);
1360
1361 if (interface == udev->actconfig->interface[0]) {
1362 info("Ignoring serial port reserved for JTAG");
1363 return -ENODEV;
1364 }
1365
1366 return 0;
1367 }
1368
1369 /*
1370 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1371 * We have to correct it if we want to read from it.
1372 */
1373 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1374 {
1375 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1376 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1377
1378 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1379 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1380 info("Fixing invalid wMaxPacketSize on read pipe");
1381 }
1382
1383 return 0;
1384 }
1385
1386 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1387 * it is called when the usb device is disconnected
1388 *
1389 * usbserial:usb_serial_disconnect
1390 * calls __serial_close for each open of the port
1391 * shutdown is called then (ie ftdi_shutdown)
1392 */
1393 static void ftdi_shutdown (struct usb_serial *serial)
1394 {
1395 dbg("%s", __func__);
1396 }
1397
1398 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1399 {
1400 struct ftdi_private *priv = usb_get_serial_port_data(port);
1401
1402 dbg("%s", __func__);
1403
1404 remove_sysfs_attrs(port);
1405
1406 /* all open ports are closed at this point
1407 * (by usbserial.c:__serial_close, which calls ftdi_close)
1408 */
1409
1410 if (priv) {
1411 usb_set_serial_port_data(port, NULL);
1412 kfree(priv);
1413 }
1414
1415 return 0;
1416 }
1417
1418 static int ftdi_open (struct usb_serial_port *port, struct file *filp)
1419 { /* ftdi_open */
1420 struct usb_device *dev = port->serial->dev;
1421 struct ftdi_private *priv = usb_get_serial_port_data(port);
1422 unsigned long flags;
1423
1424 int result = 0;
1425 char buf[1]; /* Needed for the usb_control_msg I think */
1426
1427 dbg("%s", __func__);
1428
1429 spin_lock_irqsave(&priv->tx_lock, flags);
1430 priv->tx_bytes = 0;
1431 spin_unlock_irqrestore(&priv->tx_lock, flags);
1432 spin_lock_irqsave(&priv->rx_lock, flags);
1433 priv->rx_bytes = 0;
1434 spin_unlock_irqrestore(&priv->rx_lock, flags);
1435
1436 if (port->tty)
1437 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1438
1439 /* No error checking for this (will get errors later anyway) */
1440 /* See ftdi_sio.h for description of what is reset */
1441 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1442 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1443 FTDI_SIO_RESET_SIO,
1444 priv->interface, buf, 0, WDR_TIMEOUT);
1445
1446 /* Termios defaults are set by usb_serial_init. We don't change
1447 port->tty->termios - this would loose speed settings, etc.
1448 This is same behaviour as serial.c/rs_open() - Kuba */
1449
1450 /* ftdi_set_termios will send usb control messages */
1451 if (port->tty)
1452 ftdi_set_termios(port, port->tty->termios);
1453
1454 /* FIXME: Flow control might be enabled, so it should be checked -
1455 we have no control of defaults! */
1456 /* Turn on RTS and DTR since we are not flow controlling by default */
1457 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1458
1459 /* Not throttled */
1460 spin_lock_irqsave(&priv->rx_lock, flags);
1461 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1462 spin_unlock_irqrestore(&priv->rx_lock, flags);
1463
1464 /* Start reading from the device */
1465 priv->rx_processed = 0;
1466 usb_fill_bulk_urb(port->read_urb, dev,
1467 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1468 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1469 ftdi_read_bulk_callback, port);
1470 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1471 if (result)
1472 err("%s - failed submitting read urb, error %d", __func__, result);
1473
1474
1475 return result;
1476 } /* ftdi_open */
1477
1478
1479
1480 /*
1481 * usbserial:__serial_close only calls ftdi_close if the point is open
1482 *
1483 * This only gets called when it is the last close
1484 *
1485 *
1486 */
1487
1488 static void ftdi_close (struct usb_serial_port *port, struct file *filp)
1489 { /* ftdi_close */
1490 unsigned int c_cflag = port->tty->termios->c_cflag;
1491 struct ftdi_private *priv = usb_get_serial_port_data(port);
1492 char buf[1];
1493
1494 dbg("%s", __func__);
1495
1496 mutex_lock(&port->serial->disc_mutex);
1497 if (c_cflag & HUPCL && !port->serial->disconnected){
1498 /* Disable flow control */
1499 if (usb_control_msg(port->serial->dev,
1500 usb_sndctrlpipe(port->serial->dev, 0),
1501 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1502 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1503 0, priv->interface, buf, 0,
1504 WDR_TIMEOUT) < 0) {
1505 err("error from flowcontrol urb");
1506 }
1507
1508 /* drop RTS and DTR */
1509 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1510 } /* Note change no line if hupcl is off */
1511 mutex_unlock(&port->serial->disc_mutex);
1512
1513 /* cancel any scheduled reading */
1514 cancel_delayed_work(&priv->rx_work);
1515 flush_scheduled_work();
1516
1517 /* shutdown our bulk read */
1518 usb_kill_urb(port->read_urb);
1519 } /* ftdi_close */
1520
1521
1522
1523 /* The SIO requires the first byte to have:
1524 * B0 1
1525 * B1 0
1526 * B2..7 length of message excluding byte 0
1527 *
1528 * The new devices do not require this byte
1529 */
1530 static int ftdi_write (struct usb_serial_port *port,
1531 const unsigned char *buf, int count)
1532 { /* ftdi_write */
1533 struct ftdi_private *priv = usb_get_serial_port_data(port);
1534 struct urb *urb;
1535 unsigned char *buffer;
1536 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1537 int status;
1538 int transfer_size;
1539 unsigned long flags;
1540
1541 dbg("%s port %d, %d bytes", __func__, port->number, count);
1542
1543 if (count == 0) {
1544 dbg("write request of 0 bytes");
1545 return 0;
1546 }
1547 spin_lock_irqsave(&priv->tx_lock, flags);
1548 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1549 spin_unlock_irqrestore(&priv->tx_lock, flags);
1550 dbg("%s - write limit hit\n", __func__);
1551 return 0;
1552 }
1553 priv->tx_outstanding_urbs++;
1554 spin_unlock_irqrestore(&priv->tx_lock, flags);
1555
1556 data_offset = priv->write_offset;
1557 dbg("data_offset set to %d",data_offset);
1558
1559 /* Determine total transfer size */
1560 transfer_size = count;
1561 if (data_offset > 0) {
1562 /* Original sio needs control bytes too... */
1563 transfer_size += (data_offset *
1564 ((count + (PKTSZ - 1 - data_offset)) /
1565 (PKTSZ - data_offset)));
1566 }
1567
1568 buffer = kmalloc (transfer_size, GFP_ATOMIC);
1569 if (!buffer) {
1570 err("%s ran out of kernel memory for urb ...", __func__);
1571 count = -ENOMEM;
1572 goto error_no_buffer;
1573 }
1574
1575 urb = usb_alloc_urb(0, GFP_ATOMIC);
1576 if (!urb) {
1577 err("%s - no more free urbs", __func__);
1578 count = -ENOMEM;
1579 goto error_no_urb;
1580 }
1581
1582 /* Copy data */
1583 if (data_offset > 0) {
1584 /* Original sio requires control byte at start of each packet. */
1585 int user_pktsz = PKTSZ - data_offset;
1586 int todo = count;
1587 unsigned char *first_byte = buffer;
1588 const unsigned char *current_position = buf;
1589
1590 while (todo > 0) {
1591 if (user_pktsz > todo) {
1592 user_pktsz = todo;
1593 }
1594 /* Write the control byte at the front of the packet*/
1595 *first_byte = 1 | ((user_pktsz) << 2);
1596 /* Copy data for packet */
1597 memcpy (first_byte + data_offset,
1598 current_position, user_pktsz);
1599 first_byte += user_pktsz + data_offset;
1600 current_position += user_pktsz;
1601 todo -= user_pktsz;
1602 }
1603 } else {
1604 /* No control byte required. */
1605 /* Copy in the data to send */
1606 memcpy (buffer, buf, count);
1607 }
1608
1609 usb_serial_debug_data(debug, &port->dev, __func__, transfer_size, buffer);
1610
1611 /* fill the buffer and send it */
1612 usb_fill_bulk_urb(urb, port->serial->dev,
1613 usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
1614 buffer, transfer_size,
1615 ftdi_write_bulk_callback, port);
1616
1617 status = usb_submit_urb(urb, GFP_ATOMIC);
1618 if (status) {
1619 err("%s - failed submitting write urb, error %d", __func__, status);
1620 count = status;
1621 goto error;
1622 } else {
1623 spin_lock_irqsave(&priv->tx_lock, flags);
1624 priv->tx_outstanding_bytes += count;
1625 priv->tx_bytes += count;
1626 spin_unlock_irqrestore(&priv->tx_lock, flags);
1627 }
1628
1629 /* we are done with this urb, so let the host driver
1630 * really free it when it is finished with it */
1631 usb_free_urb(urb);
1632
1633 dbg("%s write returning: %d", __func__, count);
1634 return count;
1635 error:
1636 usb_free_urb(urb);
1637 error_no_urb:
1638 kfree (buffer);
1639 error_no_buffer:
1640 spin_lock_irqsave(&priv->tx_lock, flags);
1641 priv->tx_outstanding_urbs--;
1642 spin_unlock_irqrestore(&priv->tx_lock, flags);
1643 return count;
1644 } /* ftdi_write */
1645
1646
1647 /* This function may get called when the device is closed */
1648
1649 static void ftdi_write_bulk_callback (struct urb *urb)
1650 {
1651 unsigned long flags;
1652 struct usb_serial_port *port = urb->context;
1653 struct ftdi_private *priv;
1654 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1655 unsigned long countback;
1656 int status = urb->status;
1657
1658 /* free up the transfer buffer, as usb_free_urb() does not do this */
1659 kfree (urb->transfer_buffer);
1660
1661 dbg("%s - port %d", __func__, port->number);
1662
1663 if (status) {
1664 dbg("nonzero write bulk status received: %d", status);
1665 return;
1666 }
1667
1668 priv = usb_get_serial_port_data(port);
1669 if (!priv) {
1670 dbg("%s - bad port private data pointer - exiting", __func__);
1671 return;
1672 }
1673 /* account for transferred data */
1674 countback = urb->actual_length;
1675 data_offset = priv->write_offset;
1676 if (data_offset > 0) {
1677 /* Subtract the control bytes */
1678 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
1679 }
1680 spin_lock_irqsave(&priv->tx_lock, flags);
1681 --priv->tx_outstanding_urbs;
1682 priv->tx_outstanding_bytes -= countback;
1683 spin_unlock_irqrestore(&priv->tx_lock, flags);
1684
1685 usb_serial_port_softint(port);
1686 } /* ftdi_write_bulk_callback */
1687
1688
1689 static int ftdi_write_room( struct usb_serial_port *port )
1690 {
1691 struct ftdi_private *priv = usb_get_serial_port_data(port);
1692 int room;
1693 unsigned long flags;
1694
1695 dbg("%s - port %d", __func__, port->number);
1696
1697 spin_lock_irqsave(&priv->tx_lock, flags);
1698 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1699 /*
1700 * We really can take anything the user throws at us
1701 * but let's pick a nice big number to tell the tty
1702 * layer that we have lots of free space
1703 */
1704 room = 2048;
1705 } else {
1706 room = 0;
1707 }
1708 spin_unlock_irqrestore(&priv->tx_lock, flags);
1709 return room;
1710 } /* ftdi_write_room */
1711
1712
1713 static int ftdi_chars_in_buffer (struct usb_serial_port *port)
1714 { /* ftdi_chars_in_buffer */
1715 struct ftdi_private *priv = usb_get_serial_port_data(port);
1716 int buffered;
1717 unsigned long flags;
1718
1719 dbg("%s - port %d", __func__, port->number);
1720
1721 spin_lock_irqsave(&priv->tx_lock, flags);
1722 buffered = (int)priv->tx_outstanding_bytes;
1723 spin_unlock_irqrestore(&priv->tx_lock, flags);
1724 if (buffered < 0) {
1725 err("%s outstanding tx bytes is negative!", __func__);
1726 buffered = 0;
1727 }
1728 return buffered;
1729 } /* ftdi_chars_in_buffer */
1730
1731
1732
1733 static void ftdi_read_bulk_callback (struct urb *urb)
1734 { /* ftdi_read_bulk_callback */
1735 struct usb_serial_port *port = urb->context;
1736 struct tty_struct *tty;
1737 struct ftdi_private *priv;
1738 unsigned long countread;
1739 unsigned long flags;
1740 int status = urb->status;
1741
1742 if (urb->number_of_packets > 0) {
1743 err("%s transfer_buffer_length %d actual_length %d number of packets %d",__func__,
1744 urb->transfer_buffer_length, urb->actual_length, urb->number_of_packets );
1745 err("%s transfer_flags %x ", __func__,urb->transfer_flags );
1746 }
1747
1748 dbg("%s - port %d", __func__, port->number);
1749
1750 if (port->open_count <= 0)
1751 return;
1752
1753 tty = port->tty;
1754 if (!tty) {
1755 dbg("%s - bad tty pointer - exiting",__func__);
1756 return;
1757 }
1758
1759 priv = usb_get_serial_port_data(port);
1760 if (!priv) {
1761 dbg("%s - bad port private data pointer - exiting", __func__);
1762 return;
1763 }
1764
1765 if (urb != port->read_urb) {
1766 err("%s - Not my urb!", __func__);
1767 }
1768
1769 if (status) {
1770 /* This will happen at close every time so it is a dbg not an err */
1771 dbg("(this is ok on close) nonzero read bulk status received: "
1772 "%d", status);
1773 return;
1774 }
1775
1776 /* count data bytes, but not status bytes */
1777 countread = urb->actual_length;
1778 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
1779 spin_lock_irqsave(&priv->rx_lock, flags);
1780 priv->rx_bytes += countread;
1781 spin_unlock_irqrestore(&priv->rx_lock, flags);
1782
1783 ftdi_process_read(&priv->rx_work.work);
1784
1785 } /* ftdi_read_bulk_callback */
1786
1787
1788 static void ftdi_process_read (struct work_struct *work)
1789 { /* ftdi_process_read */
1790 struct ftdi_private *priv =
1791 container_of(work, struct ftdi_private, rx_work.work);
1792 struct usb_serial_port *port = priv->port;
1793 struct urb *urb;
1794 struct tty_struct *tty;
1795 char error_flag;
1796 unsigned char *data;
1797
1798 int i;
1799 int result;
1800 int need_flip;
1801 int packet_offset;
1802 unsigned long flags;
1803
1804 dbg("%s - port %d", __func__, port->number);
1805
1806 if (port->open_count <= 0)
1807 return;
1808
1809 tty = port->tty;
1810 if (!tty) {
1811 dbg("%s - bad tty pointer - exiting",__func__);
1812 return;
1813 }
1814
1815 priv = usb_get_serial_port_data(port);
1816 if (!priv) {
1817 dbg("%s - bad port private data pointer - exiting", __func__);
1818 return;
1819 }
1820
1821 urb = port->read_urb;
1822 if (!urb) {
1823 dbg("%s - bad read_urb pointer - exiting", __func__);
1824 return;
1825 }
1826
1827 data = urb->transfer_buffer;
1828
1829 if (priv->rx_processed) {
1830 dbg("%s - already processed: %d bytes, %d remain", __func__,
1831 priv->rx_processed,
1832 urb->actual_length - priv->rx_processed);
1833 } else {
1834 /* The first two bytes of every read packet are status */
1835 if (urb->actual_length > 2) {
1836 usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
1837 } else {
1838 dbg("Status only: %03oo %03oo",data[0],data[1]);
1839 }
1840 }
1841
1842
1843 /* TO DO -- check for hung up line and handle appropriately: */
1844 /* send hangup */
1845 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1846 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1847
1848 need_flip = 0;
1849 for (packet_offset = priv->rx_processed; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1850 int length;
1851
1852 /* Compare new line status to the old one, signal if different */
1853 /* N.B. packet may be processed more than once, but differences
1854 * are only processed once. */
1855 if (priv != NULL) {
1856 char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK;
1857 if (new_status != priv->prev_status) {
1858 priv->diff_status |= new_status ^ priv->prev_status;
1859 wake_up_interruptible(&priv->delta_msr_wait);
1860 priv->prev_status = new_status;
1861 }
1862 }
1863
1864 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1865 if (length < 0) {
1866 err("%s - bad packet length: %d", __func__, length+2);
1867 length = 0;
1868 }
1869
1870 if (priv->rx_flags & THROTTLED) {
1871 dbg("%s - throttled", __func__);
1872 break;
1873 }
1874 if (tty_buffer_request_room(tty, length) < length) {
1875 /* break out & wait for throttling/unthrottling to happen */
1876 dbg("%s - receive room low", __func__);
1877 break;
1878 }
1879
1880 /* Handle errors and break */
1881 error_flag = TTY_NORMAL;
1882 /* Although the device uses a bitmask and hence can have multiple */
1883 /* errors on a packet - the order here sets the priority the */
1884 /* error is returned to the tty layer */
1885
1886 if ( data[packet_offset+1] & FTDI_RS_OE ) {
1887 error_flag = TTY_OVERRUN;
1888 dbg("OVERRRUN error");
1889 }
1890 if ( data[packet_offset+1] & FTDI_RS_BI ) {
1891 error_flag = TTY_BREAK;
1892 dbg("BREAK received");
1893 }
1894 if ( data[packet_offset+1] & FTDI_RS_PE ) {
1895 error_flag = TTY_PARITY;
1896 dbg("PARITY error");
1897 }
1898 if ( data[packet_offset+1] & FTDI_RS_FE ) {
1899 error_flag = TTY_FRAME;
1900 dbg("FRAMING error");
1901 }
1902 if (length > 0) {
1903 for (i = 2; i < length+2; i++) {
1904 /* Note that the error flag is duplicated for
1905 every character received since we don't know
1906 which character it applied to */
1907 tty_insert_flip_char(tty, data[packet_offset+i], error_flag);
1908 }
1909 need_flip = 1;
1910 }
1911
1912 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1913 /* if a parity error is detected you get status packets forever
1914 until a character is sent without a parity error.
1915 This doesn't work well since the application receives a never
1916 ending stream of bad data - even though new data hasn't been sent.
1917 Therefore I (bill) have taken this out.
1918 However - this might make sense for framing errors and so on
1919 so I am leaving the code in for now.
1920 */
1921 else {
1922 if (error_flag != TTY_NORMAL){
1923 dbg("error_flag is not normal");
1924 /* In this case it is just status - if that is an error send a bad character */
1925 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1926 tty_flip_buffer_push(tty);
1927 }
1928 tty_insert_flip_char(tty, 0xff, error_flag);
1929 need_flip = 1;
1930 }
1931 }
1932 #endif
1933 } /* "for(packet_offset=0..." */
1934
1935 /* Low latency */
1936 if (need_flip) {
1937 tty_flip_buffer_push(tty);
1938 }
1939
1940 if (packet_offset < urb->actual_length) {
1941 /* not completely processed - record progress */
1942 priv->rx_processed = packet_offset;
1943 dbg("%s - incomplete, %d bytes processed, %d remain",
1944 __func__, packet_offset,
1945 urb->actual_length - packet_offset);
1946 /* check if we were throttled while processing */
1947 spin_lock_irqsave(&priv->rx_lock, flags);
1948 if (priv->rx_flags & THROTTLED) {
1949 priv->rx_flags |= ACTUALLY_THROTTLED;
1950 spin_unlock_irqrestore(&priv->rx_lock, flags);
1951 dbg("%s - deferring remainder until unthrottled",
1952 __func__);
1953 return;
1954 }
1955 spin_unlock_irqrestore(&priv->rx_lock, flags);
1956 /* if the port is closed stop trying to read */
1957 if (port->open_count > 0){
1958 /* delay processing of remainder */
1959 schedule_delayed_work(&priv->rx_work, 1);
1960 } else {
1961 dbg("%s - port is closed", __func__);
1962 }
1963 return;
1964 }
1965
1966 /* urb is completely processed */
1967 priv->rx_processed = 0;
1968
1969 /* if the port is closed stop trying to read */
1970 if (port->open_count > 0){
1971 /* Continue trying to always read */
1972 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
1973 usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress),
1974 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1975 ftdi_read_bulk_callback, port);
1976
1977 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
1978 if (result)
1979 err("%s - failed resubmitting read urb, error %d", __func__, result);
1980 }
1981
1982 return;
1983 } /* ftdi_process_read */
1984
1985
1986 static void ftdi_break_ctl( struct usb_serial_port *port, int break_state )
1987 {
1988 struct ftdi_private *priv = usb_get_serial_port_data(port);
1989 __u16 urb_value = 0;
1990 char buf[1];
1991
1992 /* break_state = -1 to turn on break, and 0 to turn off break */
1993 /* see drivers/char/tty_io.c to see it used */
1994 /* last_set_data_urb_value NEVER has the break bit set in it */
1995
1996 if (break_state) {
1997 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
1998 } else {
1999 urb_value = priv->last_set_data_urb_value;
2000 }
2001
2002
2003 if (usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
2004 FTDI_SIO_SET_DATA_REQUEST,
2005 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2006 urb_value , priv->interface,
2007 buf, 0, WDR_TIMEOUT) < 0) {
2008 err("%s FAILED to enable/disable break state (state was %d)", __func__,break_state);
2009 }
2010
2011 dbg("%s break state is %d - urb is %d", __func__,break_state, urb_value);
2012
2013 }
2014
2015
2016 /* old_termios contains the original termios settings and tty->termios contains
2017 * the new setting to be used
2018 * WARNING: set_termios calls this with old_termios in kernel space
2019 */
2020
2021 static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios *old_termios)
2022 { /* ftdi_termios */
2023 struct usb_device *dev = port->serial->dev;
2024 struct ftdi_private *priv = usb_get_serial_port_data(port);
2025 struct ktermios *termios = port->tty->termios;
2026 unsigned int cflag = termios->c_cflag;
2027 __u16 urb_value; /* will hold the new flags */
2028 char buf[1]; /* Perhaps I should dynamically alloc this? */
2029
2030 // Added for xon/xoff support
2031 unsigned int iflag = termios->c_iflag;
2032 unsigned char vstop;
2033 unsigned char vstart;
2034
2035 dbg("%s", __func__);
2036
2037 /* Force baud rate if this device requires it, unless it is set to B0. */
2038 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2039 dbg("%s: forcing baud rate for this device", __func__);
2040 tty_encode_baud_rate(port->tty, priv->force_baud,
2041 priv->force_baud);
2042 }
2043
2044 /* Force RTS-CTS if this device requires it. */
2045 if (priv->force_rtscts) {
2046 dbg("%s: forcing rtscts for this device", __func__);
2047 termios->c_cflag |= CRTSCTS;
2048 }
2049
2050 cflag = termios->c_cflag;
2051
2052 /* FIXME -For this cut I don't care if the line is really changing or
2053 not - so just do the change regardless - should be able to
2054 compare old_termios and tty->termios */
2055 /* NOTE These routines can get interrupted by
2056 ftdi_sio_read_bulk_callback - need to examine what this
2057 means - don't see any problems yet */
2058
2059 /* Set number of data bits, parity, stop bits */
2060
2061 termios->c_cflag &= ~CMSPAR;
2062
2063 urb_value = 0;
2064 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2065 FTDI_SIO_SET_DATA_STOP_BITS_1);
2066 urb_value |= (cflag & PARENB ?
2067 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2068 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2069 FTDI_SIO_SET_DATA_PARITY_NONE);
2070 if (cflag & CSIZE) {
2071 switch (cflag & CSIZE) {
2072 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2073 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2074 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2075 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2076 default:
2077 err("CSIZE was set but not CS5-CS8");
2078 }
2079 }
2080
2081 /* This is needed by the break command since it uses the same command - but is
2082 * or'ed with this value */
2083 priv->last_set_data_urb_value = urb_value;
2084
2085 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2086 FTDI_SIO_SET_DATA_REQUEST,
2087 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2088 urb_value , priv->interface,
2089 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
2090 err("%s FAILED to set databits/stopbits/parity", __func__);
2091 }
2092
2093 /* Now do the baudrate */
2094 if ((cflag & CBAUD) == B0 ) {
2095 /* Disable flow control */
2096 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2097 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2098 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2099 0, priv->interface,
2100 buf, 0, WDR_TIMEOUT) < 0) {
2101 err("%s error from disable flowcontrol urb", __func__);
2102 }
2103 /* Drop RTS and DTR */
2104 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2105 } else {
2106 /* set the baudrate determined before */
2107 if (change_speed(port)) {
2108 err("%s urb failed to set baudrate", __func__);
2109 }
2110 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2111 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) {
2112 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2113 }
2114 }
2115
2116 /* Set flow control */
2117 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2118 if (cflag & CRTSCTS) {
2119 dbg("%s Setting to CRTSCTS flow control", __func__);
2120 if (usb_control_msg(dev,
2121 usb_sndctrlpipe(dev, 0),
2122 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2123 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2124 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2125 buf, 0, WDR_TIMEOUT) < 0) {
2126 err("urb failed to set to rts/cts flow control");
2127 }
2128
2129 } else {
2130 /*
2131 * Xon/Xoff code
2132 *
2133 * Check the IXOFF status in the iflag component of the termios structure
2134 * if IXOFF is not set, the pre-xon/xoff code is executed.
2135 */
2136 if (iflag & IXOFF) {
2137 dbg("%s request to enable xonxoff iflag=%04x",__func__,iflag);
2138 // Try to enable the XON/XOFF on the ftdi_sio
2139 // Set the vstart and vstop -- could have been done up above where
2140 // a lot of other dereferencing is done but that would be very
2141 // inefficient as vstart and vstop are not always needed
2142 vstart = termios->c_cc[VSTART];
2143 vstop = termios->c_cc[VSTOP];
2144 urb_value=(vstop << 8) | (vstart);
2145
2146 if (usb_control_msg(dev,
2147 usb_sndctrlpipe(dev, 0),
2148 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2149 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2150 urb_value , (FTDI_SIO_XON_XOFF_HS
2151 | priv->interface),
2152 buf, 0, WDR_TIMEOUT) < 0) {
2153 err("urb failed to set to xon/xoff flow control");
2154 }
2155 } else {
2156 /* else clause to only run if cfag ! CRTSCTS and iflag ! XOFF */
2157 /* CHECKME Assuming XON/XOFF handled by tty stack - not by device */
2158 dbg("%s Turning off hardware flow control", __func__);
2159 if (usb_control_msg(dev,
2160 usb_sndctrlpipe(dev, 0),
2161 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2162 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2163 0, priv->interface,
2164 buf, 0, WDR_TIMEOUT) < 0) {
2165 err("urb failed to clear flow control");
2166 }
2167 }
2168
2169 }
2170 return;
2171 } /* ftdi_termios */
2172
2173
2174 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file)
2175 {
2176 struct ftdi_private *priv = usb_get_serial_port_data(port);
2177 unsigned char buf[2];
2178 int ret;
2179
2180 dbg("%s TIOCMGET", __func__);
2181 switch (priv->chip_type) {
2182 case SIO:
2183 /* Request the status from the device */
2184 if ((ret = usb_control_msg(port->serial->dev,
2185 usb_rcvctrlpipe(port->serial->dev, 0),
2186 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2187 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2188 0, 0,
2189 buf, 1, WDR_TIMEOUT)) < 0 ) {
2190 err("%s Could not get modem status of device - err: %d", __func__,
2191 ret);
2192 return(ret);
2193 }
2194 break;
2195 case FT8U232AM:
2196 case FT232BM:
2197 case FT2232C:
2198 case FT232RL:
2199 /* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same
2200 format as the data returned from the in point */
2201 if ((ret = usb_control_msg(port->serial->dev,
2202 usb_rcvctrlpipe(port->serial->dev, 0),
2203 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2204 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2205 0, priv->interface,
2206 buf, 2, WDR_TIMEOUT)) < 0 ) {
2207 err("%s Could not get modem status of device - err: %d", __func__,
2208 ret);
2209 return(ret);
2210 }
2211 break;
2212 default:
2213 return -EFAULT;
2214 break;
2215 }
2216
2217 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2218 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2219 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2220 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2221 priv->last_dtr_rts;
2222 }
2223
2224 static int ftdi_tiocmset(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear)
2225 {
2226 dbg("%s TIOCMSET", __func__);
2227 return update_mctrl(port, set, clear);
2228 }
2229
2230
2231 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
2232 {
2233 struct ftdi_private *priv = usb_get_serial_port_data(port);
2234
2235 dbg("%s cmd 0x%04x", __func__, cmd);
2236
2237 /* Based on code from acm.c and others */
2238 switch (cmd) {
2239
2240 case TIOCGSERIAL: /* gets serial port data */
2241 return get_serial_info(port, (struct serial_struct __user *) arg);
2242
2243 case TIOCSSERIAL: /* sets serial port data */
2244 return set_serial_info(port, (struct serial_struct __user *) arg);
2245
2246 /*
2247 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2248 * - mask passed in arg for lines of interest
2249 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2250 * Caller should use TIOCGICOUNT to see which one it was.
2251 *
2252 * This code is borrowed from linux/drivers/char/serial.c
2253 */
2254 case TIOCMIWAIT:
2255 while (priv != NULL) {
2256 interruptible_sleep_on(&priv->delta_msr_wait);
2257 /* see if a signal did it */
2258 if (signal_pending(current))
2259 return -ERESTARTSYS;
2260 else {
2261 char diff = priv->diff_status;
2262
2263 if (diff == 0) {
2264 return -EIO; /* no change => error */
2265 }
2266
2267 /* Consume all events */
2268 priv->diff_status = 0;
2269
2270 /* Return 0 if caller wanted to know about these bits */
2271 if ( ((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2272 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2273 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2274 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS)) ) {
2275 return 0;
2276 }
2277 /*
2278 * Otherwise caller can't care less about what happened,
2279 * and so we continue to wait for more events.
2280 */
2281 }
2282 }
2283 return(0);
2284 break;
2285 default:
2286 break;
2287
2288 }
2289
2290
2291 /* This is not necessarily an error - turns out the higher layers will do
2292 * some ioctls itself (see comment above)
2293 */
2294 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2295
2296 return(-ENOIOCTLCMD);
2297 } /* ftdi_ioctl */
2298
2299
2300 static void ftdi_throttle (struct usb_serial_port *port)
2301 {
2302 struct ftdi_private *priv = usb_get_serial_port_data(port);
2303 unsigned long flags;
2304
2305 dbg("%s - port %d", __func__, port->number);
2306
2307 spin_lock_irqsave(&priv->rx_lock, flags);
2308 priv->rx_flags |= THROTTLED;
2309 spin_unlock_irqrestore(&priv->rx_lock, flags);
2310 }
2311
2312
2313 static void ftdi_unthrottle (struct usb_serial_port *port)
2314 {
2315 struct ftdi_private *priv = usb_get_serial_port_data(port);
2316 int actually_throttled;
2317 unsigned long flags;
2318
2319 dbg("%s - port %d", __func__, port->number);
2320
2321 spin_lock_irqsave(&priv->rx_lock, flags);
2322 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2323 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2324 spin_unlock_irqrestore(&priv->rx_lock, flags);
2325
2326 if (actually_throttled)
2327 schedule_delayed_work(&priv->rx_work, 0);
2328 }
2329
2330 static int __init ftdi_init (void)
2331 {
2332 int retval;
2333
2334 dbg("%s", __func__);
2335 if (vendor > 0 && product > 0) {
2336 /* Add user specified VID/PID to reserved element of table. */
2337 int i;
2338 for (i = 0; id_table_combined[i].idVendor; i++)
2339 ;
2340 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2341 id_table_combined[i].idVendor = vendor;
2342 id_table_combined[i].idProduct = product;
2343 }
2344 retval = usb_serial_register(&ftdi_sio_device);
2345 if (retval)
2346 goto failed_sio_register;
2347 retval = usb_register(&ftdi_driver);
2348 if (retval)
2349 goto failed_usb_register;
2350
2351 info(DRIVER_VERSION ":" DRIVER_DESC);
2352 return 0;
2353 failed_usb_register:
2354 usb_serial_deregister(&ftdi_sio_device);
2355 failed_sio_register:
2356 return retval;
2357 }
2358
2359
2360 static void __exit ftdi_exit (void)
2361 {
2362
2363 dbg("%s", __func__);
2364
2365 usb_deregister (&ftdi_driver);
2366 usb_serial_deregister (&ftdi_sio_device);
2367
2368 }
2369
2370
2371 module_init(ftdi_init);
2372 module_exit(ftdi_exit);
2373
2374 MODULE_AUTHOR( DRIVER_AUTHOR );
2375 MODULE_DESCRIPTION( DRIVER_DESC );
2376 MODULE_LICENSE("GPL");
2377
2378 module_param(debug, bool, S_IRUGO | S_IWUSR);
2379 MODULE_PARM_DESC(debug, "Debug enabled or not");
2380 module_param(vendor, ushort, 0);
2381 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2382 __MODULE_STRING(FTDI_VID)")");
2383 module_param(product, ushort, 0);
2384 MODULE_PARM_DESC(vendor, "User specified product ID");
2385
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