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/smp_lock.h> 37 #include <linux/tty.h> 38 #include <linux/tty_driver.h> 39 #include <linux/tty_flip.h> 40 #include <linux/module.h> 41 #include <linux/spinlock.h> 42 #include <linux/uaccess.h> 43 #include <linux/usb.h> 44 #include <linux/serial.h> 45 #include <linux/usb/serial.h> 46 #include "ftdi_sio.h" 47 #include "ftdi_sio_ids.h" 48 49 /* 50 * Version Information 51 */ 52 #define DRIVER_VERSION "v1.5.0" 53 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>" 54 #define DRIVER_DESC "USB FTDI Serial Converters Driver" 55 56 static int debug; 57 static __u16 vendor = FTDI_VID; 58 static __u16 product; 59 60 struct ftdi_private { 61 struct kref kref; 62 ftdi_chip_type_t chip_type; 63 /* type of device, either SIO or FT8U232AM */ 64 int baud_base; /* baud base clock for divisor setting */ 65 int custom_divisor; /* custom_divisor kludge, this is for 66 baud_base (different from what goes to the 67 chip!) */ 68 __u16 last_set_data_urb_value ; 69 /* the last data state set - needed for doing 70 * a break 71 */ 72 int write_offset; /* This is the offset in the usb data block to 73 * write the serial data - it varies between 74 * devices 75 */ 76 int flags; /* some ASYNC_xxxx flags are supported */ 77 unsigned long last_dtr_rts; /* saved modem control outputs */ 78 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ 79 char prev_status, diff_status; /* Used for TIOCMIWAIT */ 80 struct usb_serial_port *port; 81 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface 82 (0 for FT232/245) */ 83 84 speed_t force_baud; /* if non-zero, force the baud rate to 85 this value */ 86 int force_rtscts; /* if non-zero, force RTS-CTS to always 87 be enabled */ 88 89 unsigned int latency; /* latency setting in use */ 90 spinlock_t tx_lock; /* spinlock for transmit state */ 91 unsigned long tx_bytes; 92 unsigned long tx_outstanding_bytes; 93 unsigned long tx_outstanding_urbs; 94 unsigned short max_packet_size; 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 int ftdi_NDI_device_setup(struct usb_serial *serial); 107 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv); 108 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv); 109 110 static struct ftdi_sio_quirk ftdi_jtag_quirk = { 111 .probe = ftdi_jtag_probe, 112 }; 113 114 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = { 115 .probe = ftdi_mtxorb_hack_setup, 116 }; 117 118 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = { 119 .probe = ftdi_NDI_device_setup, 120 }; 121 122 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = { 123 .port_probe = ftdi_USB_UIRT_setup, 124 }; 125 126 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = { 127 .port_probe = ftdi_HE_TIRA1_setup, 128 }; 129 130 /* 131 * The 8U232AM has the same API as the sio except for: 132 * - it can support MUCH higher baudrates; up to: 133 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz 134 * o 230400 at 12MHz 135 * so .. 8U232AM's baudrate setting codes are different 136 * - it has a two byte status code. 137 * - it returns characters every 16ms (the FTDI does it every 40ms) 138 * 139 * the bcdDevice value is used to differentiate FT232BM and FT245BM from 140 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID 141 * combinations in both tables. 142 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices, 143 * but I don't know if those ever went into mass production. [Ian Abbott] 144 */ 145 146 147 148 static struct usb_device_id id_table_combined [] = { 149 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) }, 150 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) }, 151 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) }, 152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) }, 153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) }, 154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) }, 155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) }, 156 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) }, 157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) }, 158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) }, 159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) }, 160 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, 161 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, 162 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, 163 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) }, 164 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) }, 165 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) }, 166 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) }, 167 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) }, 168 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) }, 169 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) }, 170 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) }, 171 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) }, 172 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) }, 173 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) }, 174 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) }, 175 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) }, 176 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) }, 177 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) }, 178 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) }, 179 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) }, 180 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) }, 181 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) }, 182 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) }, 183 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) }, 184 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) }, 185 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) }, 186 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) }, 187 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) }, 188 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) }, 189 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) }, 190 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) }, 191 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) }, 192 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) }, 193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) }, 194 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) }, 195 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) }, 196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) }, 197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) }, 198 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) }, 199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) }, 200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) }, 201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) }, 202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) }, 203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) }, 204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) }, 205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) }, 206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) }, 207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) }, 208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) }, 209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) }, 210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) }, 211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) }, 212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) }, 213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) }, 214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) }, 215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) }, 216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) }, 217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) }, 218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) }, 219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) }, 220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) }, 221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) }, 222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) }, 223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) }, 224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) }, 225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) }, 226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) }, 227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) }, 228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) }, 229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) }, 230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) }, 231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) }, 232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) }, 233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) }, 234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) }, 235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) }, 236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) }, 237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) }, 238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID), 239 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) }, 241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) }, 242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) }, 243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) }, 244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID), 245 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) }, 247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) }, 248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) }, 249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) }, 250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) }, 251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) }, 252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) }, 253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) }, 254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) }, 255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) }, 256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) }, 257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) }, 258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) }, 259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) }, 260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) }, 261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) }, 262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) }, 263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) }, 264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) }, 265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) }, 266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) }, 267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) }, 268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) }, 269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) }, 270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) }, 271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) }, 272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) }, 273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) }, 274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) }, 275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) }, 276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) }, 277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) }, 278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) }, 279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) }, 280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) }, 281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) }, 282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) }, 283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) }, 284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID), 285 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID), 287 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID), 289 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID), 291 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID), 293 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID), 295 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) }, 297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) }, 298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) }, 299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) }, 300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) }, 301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) }, 302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) }, 303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) }, 304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) }, 305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) }, 306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) }, 307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) }, 308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) }, 309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) }, 310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) }, 311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) }, 312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) }, 313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) }, 314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) }, 315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) }, 316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) }, 317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) }, 318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) }, 319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) }, 320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) }, 321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) }, 322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) }, 323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) }, 324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) }, 325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) }, 326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) }, 327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) }, 328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) }, 329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) }, 330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) }, 331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) }, 332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) }, 333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) }, 334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) }, 335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) }, 336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) }, 337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) }, 338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) }, 339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) }, 340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) }, 341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) }, 342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) }, 343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) }, 344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) }, 345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) }, 346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) }, 347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) }, 348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) }, 349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) }, 350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) }, 351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) }, 352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) }, 353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) }, 354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) }, 355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) }, 356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) }, 357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) }, 358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) }, 359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) }, 360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) }, 361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) }, 362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) }, 363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) }, 364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) }, 365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) }, 366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) }, 367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) }, 368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) }, 369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) }, 370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) }, 371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) }, 372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) }, 373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) }, 374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) }, 375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) }, 376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) }, 377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) }, 378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) }, 379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) }, 380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) }, 381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) }, 382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) }, 383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) }, 384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) }, 385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) }, 386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) }, 387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) }, 388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) }, 389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) }, 390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) }, 391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) }, 392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) }, 393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) }, 394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) }, 395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) }, 396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) }, 397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) }, 398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) }, 399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) }, 400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) }, 401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) }, 402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) }, 403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) }, 404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) }, 405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) }, 406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) }, 407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) }, 408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) }, 409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) }, 410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) }, 411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) }, 412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) }, 413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) }, 414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) }, 415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) }, 416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) }, 417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) }, 418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) }, 419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) }, 420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) }, 421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) }, 422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) }, 423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) }, 424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) }, 425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) }, 426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) }, 427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) }, 428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) }, 429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) }, 430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) }, 431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) }, 432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) }, 433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) }, 434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) }, 435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) }, 436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) }, 437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) }, 438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) }, 439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) }, 440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) }, 441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) }, 442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) }, 443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) }, 444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) }, 445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) }, 446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) }, 447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) }, 448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) }, 449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) }, 450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) }, 451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) }, 452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) }, 453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) }, 454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) }, 455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) }, 456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) }, 457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) }, 458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) }, 459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) }, 460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) }, 461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) }, 462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) }, 463 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) }, 464 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) }, 465 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) }, 466 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) }, 467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) }, 468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) }, 469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) }, 470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) }, 471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) }, 472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) }, 473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) }, 474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) }, 475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) }, 476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) }, 477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) }, 478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) }, 479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) }, 480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) }, 481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) }, 482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) }, 483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) }, 484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) }, 485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) }, 486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) }, 487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) }, 488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) }, 489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) }, 490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) }, 491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) }, 492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) }, 493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) }, 494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) }, 495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) }, 496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) }, 497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) }, 498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) }, 499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) }, 500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) }, 501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) }, 502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) }, 503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) }, 504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) }, 505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) }, 506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) }, 507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) }, 508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) }, 509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) }, 510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) }, 511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) }, 512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) }, 513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) }, 514 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) }, 515 { USB_DEVICE(OCT_VID, OCT_US101_PID) }, 516 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID), 517 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk }, 518 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID), 519 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk }, 520 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) }, 521 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) }, 522 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) }, 523 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) }, 524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) }, 525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) }, 526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) }, 527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) }, 528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) }, 529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) }, 530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) }, 531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) }, 532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) }, 533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) }, 534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) }, 535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) }, 536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) }, 537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) }, 538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) }, 539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) }, 540 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) }, 541 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) }, 542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) }, 543 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) }, 544 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) }, 545 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) }, 546 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) }, 547 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) }, 548 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) }, 549 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) }, 550 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) }, 551 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) }, 552 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) }, 553 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) }, 554 /* 555 * Due to many user requests for multiple ELV devices we enable 556 * them by default. 557 */ 558 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) }, 559 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) }, 560 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) }, 561 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) }, 562 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) }, 563 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) }, 564 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) }, 565 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) }, 566 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) }, 567 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) }, 568 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) }, 569 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) }, 570 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) }, 571 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) }, 572 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) }, 573 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) }, 574 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) }, 575 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) }, 576 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) }, 577 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) }, 578 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) }, 579 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, 580 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, 581 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) }, 582 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) }, 583 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) }, 584 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) }, 585 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) }, 586 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) }, 587 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) }, 588 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) }, 589 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) }, 590 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) }, 591 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) }, 592 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) }, 593 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) }, 594 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) }, 595 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) }, 596 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) }, 597 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, 598 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, 599 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, 600 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, 601 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, 602 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) }, 603 { USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) }, 604 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) }, 605 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) }, 606 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) }, 607 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) }, 608 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) }, 609 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) }, 610 { USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) }, 611 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) }, 612 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) }, 613 { USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) }, 614 { USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) }, 615 { USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) }, 616 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, 617 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, 618 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, 619 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) }, 620 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) }, 621 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) }, 622 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) }, 623 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) }, 624 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) }, 625 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) }, 626 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) }, 627 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, 628 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, 629 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) }, 630 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) }, 631 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) }, 632 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) }, 633 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) }, 634 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) }, 635 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) }, 636 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) }, 637 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) }, 638 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) }, 639 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, 640 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, 641 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, 642 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, 643 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, 644 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, 645 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) }, 646 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) }, 647 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) }, 648 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) }, 649 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) }, 650 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) }, 651 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) }, 652 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) }, 653 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) }, 654 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) }, 655 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, 656 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, 657 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, 658 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, 659 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, 660 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) }, 661 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) }, 662 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) }, 663 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) }, 664 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) }, 665 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) }, 666 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) }, 667 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) }, 668 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) }, 669 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID), 670 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 671 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID), 672 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 673 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID), 674 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 675 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID), 676 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 677 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID), 678 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 679 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, 680 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, 681 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) }, 682 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, 683 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, 684 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, 685 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), 686 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 687 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), 688 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 689 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), 690 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 691 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID), 692 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 693 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID), 694 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 695 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID), 696 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 697 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, 698 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, 699 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) }, 700 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) }, 701 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) }, 702 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) }, 703 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) }, 704 { USB_DEVICE(ATMEL_VID, STK541_PID) }, 705 { USB_DEVICE(DE_VID, STB_PID) }, 706 { USB_DEVICE(DE_VID, WHT_PID) }, 707 { USB_DEVICE(ADI_VID, ADI_GNICE_PID), 708 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 709 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID), 710 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 711 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) }, 712 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID), 713 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 714 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) }, 715 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) }, 716 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) }, 717 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID), 718 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 719 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) }, 720 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) }, 721 { }, /* Optional parameter entry */ 722 { } /* Terminating entry */ 723 }; 724 725 MODULE_DEVICE_TABLE(usb, id_table_combined); 726 727 static struct usb_driver ftdi_driver = { 728 .name = "ftdi_sio", 729 .probe = usb_serial_probe, 730 .disconnect = usb_serial_disconnect, 731 .id_table = id_table_combined, 732 .no_dynamic_id = 1, 733 }; 734 735 static const char *ftdi_chip_name[] = { 736 [SIO] = "SIO", /* the serial part of FT8U100AX */ 737 [FT8U232AM] = "FT8U232AM", 738 [FT232BM] = "FT232BM", 739 [FT2232C] = "FT2232C", 740 [FT232RL] = "FT232RL", 741 [FT2232H] = "FT2232H", 742 [FT4232H] = "FT4232H" 743 }; 744 745 746 /* Constants for read urb and write urb */ 747 #define BUFSZ 512 748 749 /* Used for TIOCMIWAIT */ 750 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 751 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 752 /* End TIOCMIWAIT */ 753 754 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 755 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 756 757 /* function prototypes for a FTDI serial converter */ 758 static int ftdi_sio_probe(struct usb_serial *serial, 759 const struct usb_device_id *id); 760 static int ftdi_sio_port_probe(struct usb_serial_port *port); 761 static int ftdi_sio_port_remove(struct usb_serial_port *port); 762 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port); 763 static void ftdi_close(struct usb_serial_port *port); 764 static void ftdi_dtr_rts(struct usb_serial_port *port, int on); 765 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 766 const unsigned char *buf, int count); 767 static int ftdi_write_room(struct tty_struct *tty); 768 static int ftdi_chars_in_buffer(struct tty_struct *tty); 769 static void ftdi_write_bulk_callback(struct urb *urb); 770 static void ftdi_read_bulk_callback(struct urb *urb); 771 static void ftdi_process_read(struct usb_serial_port *port); 772 static void ftdi_set_termios(struct tty_struct *tty, 773 struct usb_serial_port *port, struct ktermios *old); 774 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 775 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 776 unsigned int set, unsigned int clear); 777 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 778 unsigned int cmd, unsigned long arg); 779 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 780 static void ftdi_throttle(struct tty_struct *tty); 781 static void ftdi_unthrottle(struct tty_struct *tty); 782 783 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 784 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 785 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 786 static __u32 ftdi_232bm_baud_to_divisor(int baud); 787 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base); 788 static __u32 ftdi_2232h_baud_to_divisor(int baud); 789 790 static struct usb_serial_driver ftdi_sio_device = { 791 .driver = { 792 .owner = THIS_MODULE, 793 .name = "ftdi_sio", 794 }, 795 .description = "FTDI USB Serial Device", 796 .usb_driver = &ftdi_driver , 797 .id_table = id_table_combined, 798 .num_ports = 1, 799 .probe = ftdi_sio_probe, 800 .port_probe = ftdi_sio_port_probe, 801 .port_remove = ftdi_sio_port_remove, 802 .open = ftdi_open, 803 .close = ftdi_close, 804 .dtr_rts = ftdi_dtr_rts, 805 .throttle = ftdi_throttle, 806 .unthrottle = ftdi_unthrottle, 807 .write = ftdi_write, 808 .write_room = ftdi_write_room, 809 .chars_in_buffer = ftdi_chars_in_buffer, 810 .read_bulk_callback = ftdi_read_bulk_callback, 811 .write_bulk_callback = ftdi_write_bulk_callback, 812 .tiocmget = ftdi_tiocmget, 813 .tiocmset = ftdi_tiocmset, 814 .ioctl = ftdi_ioctl, 815 .set_termios = ftdi_set_termios, 816 .break_ctl = ftdi_break_ctl, 817 }; 818 819 820 #define WDR_TIMEOUT 5000 /* default urb timeout */ 821 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 822 823 /* High and low are for DTR, RTS etc etc */ 824 #define HIGH 1 825 #define LOW 0 826 827 /* number of outstanding urbs to prevent userspace DoS from happening */ 828 #define URB_UPPER_LIMIT 42 829 830 /* 831 * *************************************************************************** 832 * Utility functions 833 * *************************************************************************** 834 */ 835 836 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 837 { 838 unsigned short int divisor; 839 /* divisor shifted 3 bits to the left */ 840 int divisor3 = base / 2 / baud; 841 if ((divisor3 & 0x7) == 7) 842 divisor3++; /* round x.7/8 up to x+1 */ 843 divisor = divisor3 >> 3; 844 divisor3 &= 0x7; 845 if (divisor3 == 1) 846 divisor |= 0xc000; 847 else if (divisor3 >= 4) 848 divisor |= 0x4000; 849 else if (divisor3 != 0) 850 divisor |= 0x8000; 851 else if (divisor == 1) 852 divisor = 0; /* special case for maximum baud rate */ 853 return divisor; 854 } 855 856 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 857 { 858 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 859 } 860 861 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 862 { 863 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 864 __u32 divisor; 865 /* divisor shifted 3 bits to the left */ 866 int divisor3 = base / 2 / baud; 867 divisor = divisor3 >> 3; 868 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 869 /* Deal with special cases for highest baud rates. */ 870 if (divisor == 1) 871 divisor = 0; 872 else if (divisor == 0x4001) 873 divisor = 1; 874 return divisor; 875 } 876 877 static __u32 ftdi_232bm_baud_to_divisor(int baud) 878 { 879 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 880 } 881 882 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base) 883 { 884 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 885 __u32 divisor; 886 int divisor3; 887 888 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */ 889 divisor3 = (base / 10 / baud) * 8; 890 891 divisor = divisor3 >> 3; 892 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 893 /* Deal with special cases for highest baud rates. */ 894 if (divisor == 1) 895 divisor = 0; 896 else if (divisor == 0x4001) 897 divisor = 1; 898 /* 899 * Set this bit to turn off a divide by 2.5 on baud rate generator 900 * This enables baud rates up to 12Mbaud but cannot reach below 1200 901 * baud with this bit set 902 */ 903 divisor |= 0x00020000; 904 return divisor; 905 } 906 907 static __u32 ftdi_2232h_baud_to_divisor(int baud) 908 { 909 return ftdi_2232h_baud_base_to_divisor(baud, 120000000); 910 } 911 912 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 913 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 914 915 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 916 unsigned int clear) 917 { 918 struct ftdi_private *priv = usb_get_serial_port_data(port); 919 char *buf; 920 unsigned urb_value; 921 int rv; 922 923 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 924 dbg("%s - DTR|RTS not being set|cleared", __func__); 925 return 0; /* no change */ 926 } 927 928 buf = kmalloc(1, GFP_NOIO); 929 if (!buf) 930 return -ENOMEM; 931 932 clear &= ~set; /* 'set' takes precedence over 'clear' */ 933 urb_value = 0; 934 if (clear & TIOCM_DTR) 935 urb_value |= FTDI_SIO_SET_DTR_LOW; 936 if (clear & TIOCM_RTS) 937 urb_value |= FTDI_SIO_SET_RTS_LOW; 938 if (set & TIOCM_DTR) 939 urb_value |= FTDI_SIO_SET_DTR_HIGH; 940 if (set & TIOCM_RTS) 941 urb_value |= FTDI_SIO_SET_RTS_HIGH; 942 rv = usb_control_msg(port->serial->dev, 943 usb_sndctrlpipe(port->serial->dev, 0), 944 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 945 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 946 urb_value, priv->interface, 947 buf, 0, WDR_TIMEOUT); 948 949 kfree(buf); 950 if (rv < 0) { 951 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 952 __func__, 953 (set & TIOCM_DTR) ? "HIGH" : 954 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 955 (set & TIOCM_RTS) ? "HIGH" : 956 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 957 } else { 958 dbg("%s - DTR %s, RTS %s", __func__, 959 (set & TIOCM_DTR) ? "HIGH" : 960 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 961 (set & TIOCM_RTS) ? "HIGH" : 962 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 963 /* FIXME: locking on last_dtr_rts */ 964 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 965 } 966 return rv; 967 } 968 969 970 static __u32 get_ftdi_divisor(struct tty_struct *tty, 971 struct usb_serial_port *port) 972 { /* get_ftdi_divisor */ 973 struct ftdi_private *priv = usb_get_serial_port_data(port); 974 __u32 div_value = 0; 975 int div_okay = 1; 976 int baud; 977 978 /* 979 * The logic involved in setting the baudrate can be cleanly split into 980 * 3 steps. 981 * 1. Standard baud rates are set in tty->termios->c_cflag 982 * 2. If these are not enough, you can set any speed using alt_speed as 983 * follows: 984 * - set tty->termios->c_cflag speed to B38400 985 * - set your real speed in tty->alt_speed; it gets ignored when 986 * alt_speed==0, (or) 987 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 988 * follows: 989 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 990 * this just sets alt_speed to (HI: 57600, VHI: 115200, 991 * SHI: 230400, WARP: 460800) 992 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 993 * 3. You can also set baud rate by setting custom divisor as follows 994 * - set tty->termios->c_cflag speed to B38400 995 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 996 * follows: 997 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 998 * o custom_divisor set to baud_base / your_new_baudrate 999 * ** Step 3 is done courtesy of code borrowed from serial.c 1000 * I should really spend some time and separate + move this common 1001 * code to serial.c, it is replicated in nearly every serial driver 1002 * you see. 1003 */ 1004 1005 /* 1. Get the baud rate from the tty settings, this observes 1006 alt_speed hack */ 1007 1008 baud = tty_get_baud_rate(tty); 1009 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 1010 1011 /* 2. Observe async-compatible custom_divisor hack, update baudrate 1012 if needed */ 1013 1014 if (baud == 38400 && 1015 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1016 (priv->custom_divisor)) { 1017 baud = priv->baud_base / priv->custom_divisor; 1018 dbg("%s - custom divisor %d sets baud rate to %d", 1019 __func__, priv->custom_divisor, baud); 1020 } 1021 1022 /* 3. Convert baudrate to device-specific divisor */ 1023 1024 if (!baud) 1025 baud = 9600; 1026 switch (priv->chip_type) { 1027 case SIO: /* SIO chip */ 1028 switch (baud) { 1029 case 300: div_value = ftdi_sio_b300; break; 1030 case 600: div_value = ftdi_sio_b600; break; 1031 case 1200: div_value = ftdi_sio_b1200; break; 1032 case 2400: div_value = ftdi_sio_b2400; break; 1033 case 4800: div_value = ftdi_sio_b4800; break; 1034 case 9600: div_value = ftdi_sio_b9600; break; 1035 case 19200: div_value = ftdi_sio_b19200; break; 1036 case 38400: div_value = ftdi_sio_b38400; break; 1037 case 57600: div_value = ftdi_sio_b57600; break; 1038 case 115200: div_value = ftdi_sio_b115200; break; 1039 } /* baud */ 1040 if (div_value == 0) { 1041 dbg("%s - Baudrate (%d) requested is not supported", 1042 __func__, baud); 1043 div_value = ftdi_sio_b9600; 1044 baud = 9600; 1045 div_okay = 0; 1046 } 1047 break; 1048 case FT8U232AM: /* 8U232AM chip */ 1049 if (baud <= 3000000) { 1050 div_value = ftdi_232am_baud_to_divisor(baud); 1051 } else { 1052 dbg("%s - Baud rate too high!", __func__); 1053 baud = 9600; 1054 div_value = ftdi_232am_baud_to_divisor(9600); 1055 div_okay = 0; 1056 } 1057 break; 1058 case FT232BM: /* FT232BM chip */ 1059 case FT2232C: /* FT2232C chip */ 1060 case FT232RL: 1061 if (baud <= 3000000) { 1062 __u16 product_id = le16_to_cpu( 1063 port->serial->dev->descriptor.idProduct); 1064 if (((FTDI_NDI_HUC_PID == product_id) || 1065 (FTDI_NDI_SPECTRA_SCU_PID == product_id) || 1066 (FTDI_NDI_FUTURE_2_PID == product_id) || 1067 (FTDI_NDI_FUTURE_3_PID == product_id) || 1068 (FTDI_NDI_AURORA_SCU_PID == product_id)) && 1069 (baud == 19200)) { 1070 baud = 1200000; 1071 } 1072 div_value = ftdi_232bm_baud_to_divisor(baud); 1073 } else { 1074 dbg("%s - Baud rate too high!", __func__); 1075 div_value = ftdi_232bm_baud_to_divisor(9600); 1076 div_okay = 0; 1077 baud = 9600; 1078 } 1079 break; 1080 case FT2232H: /* FT2232H chip */ 1081 case FT4232H: /* FT4232H chip */ 1082 if ((baud <= 12000000) & (baud >= 1200)) { 1083 div_value = ftdi_2232h_baud_to_divisor(baud); 1084 } else if (baud < 1200) { 1085 div_value = ftdi_232bm_baud_to_divisor(baud); 1086 } else { 1087 dbg("%s - Baud rate too high!", __func__); 1088 div_value = ftdi_232bm_baud_to_divisor(9600); 1089 div_okay = 0; 1090 baud = 9600; 1091 } 1092 break; 1093 } /* priv->chip_type */ 1094 1095 if (div_okay) { 1096 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 1097 __func__, baud, (unsigned long)div_value, 1098 ftdi_chip_name[priv->chip_type]); 1099 } 1100 1101 tty_encode_baud_rate(tty, baud, baud); 1102 return div_value; 1103 } 1104 1105 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 1106 { 1107 struct ftdi_private *priv = usb_get_serial_port_data(port); 1108 char *buf; 1109 __u16 urb_value; 1110 __u16 urb_index; 1111 __u32 urb_index_value; 1112 int rv; 1113 1114 buf = kmalloc(1, GFP_NOIO); 1115 if (!buf) 1116 return -ENOMEM; 1117 1118 urb_index_value = get_ftdi_divisor(tty, port); 1119 urb_value = (__u16)urb_index_value; 1120 urb_index = (__u16)(urb_index_value >> 16); 1121 if (priv->interface) { /* FT2232C */ 1122 urb_index = (__u16)((urb_index << 8) | priv->interface); 1123 } 1124 1125 rv = usb_control_msg(port->serial->dev, 1126 usb_sndctrlpipe(port->serial->dev, 0), 1127 FTDI_SIO_SET_BAUDRATE_REQUEST, 1128 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1129 urb_value, urb_index, 1130 buf, 0, WDR_SHORT_TIMEOUT); 1131 1132 kfree(buf); 1133 return rv; 1134 } 1135 1136 static int write_latency_timer(struct usb_serial_port *port) 1137 { 1138 struct ftdi_private *priv = usb_get_serial_port_data(port); 1139 struct usb_device *udev = port->serial->dev; 1140 char buf[1]; 1141 int rv = 0; 1142 int l = priv->latency; 1143 1144 if (priv->flags & ASYNC_LOW_LATENCY) 1145 l = 1; 1146 1147 dbg("%s: setting latency timer = %i", __func__, l); 1148 1149 rv = usb_control_msg(udev, 1150 usb_sndctrlpipe(udev, 0), 1151 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1152 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1153 l, priv->interface, 1154 buf, 0, WDR_TIMEOUT); 1155 1156 if (rv < 0) 1157 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv); 1158 return rv; 1159 } 1160 1161 static int read_latency_timer(struct usb_serial_port *port) 1162 { 1163 struct ftdi_private *priv = usb_get_serial_port_data(port); 1164 struct usb_device *udev = port->serial->dev; 1165 unsigned short latency = 0; 1166 int rv = 0; 1167 1168 1169 dbg("%s", __func__); 1170 1171 rv = usb_control_msg(udev, 1172 usb_rcvctrlpipe(udev, 0), 1173 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1174 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1175 0, priv->interface, 1176 (char *) &latency, 1, WDR_TIMEOUT); 1177 1178 if (rv < 0) { 1179 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv); 1180 return -EIO; 1181 } 1182 return latency; 1183 } 1184 1185 static int get_serial_info(struct usb_serial_port *port, 1186 struct serial_struct __user *retinfo) 1187 { 1188 struct ftdi_private *priv = usb_get_serial_port_data(port); 1189 struct serial_struct tmp; 1190 1191 if (!retinfo) 1192 return -EFAULT; 1193 memset(&tmp, 0, sizeof(tmp)); 1194 tmp.flags = priv->flags; 1195 tmp.baud_base = priv->baud_base; 1196 tmp.custom_divisor = priv->custom_divisor; 1197 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1198 return -EFAULT; 1199 return 0; 1200 } /* get_serial_info */ 1201 1202 1203 static int set_serial_info(struct tty_struct *tty, 1204 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1205 { /* set_serial_info */ 1206 struct ftdi_private *priv = usb_get_serial_port_data(port); 1207 struct serial_struct new_serial; 1208 struct ftdi_private old_priv; 1209 1210 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1211 return -EFAULT; 1212 1213 lock_kernel(); 1214 old_priv = *priv; 1215 1216 /* Do error checking and permission checking */ 1217 1218 if (!capable(CAP_SYS_ADMIN)) { 1219 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1220 (priv->flags & ~ASYNC_USR_MASK))) { 1221 unlock_kernel(); 1222 return -EPERM; 1223 } 1224 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1225 (new_serial.flags & ASYNC_USR_MASK)); 1226 priv->custom_divisor = new_serial.custom_divisor; 1227 goto check_and_exit; 1228 } 1229 1230 if ((new_serial.baud_base != priv->baud_base) && 1231 (new_serial.baud_base < 9600)) { 1232 unlock_kernel(); 1233 return -EINVAL; 1234 } 1235 1236 /* Make the changes - these are privileged changes! */ 1237 1238 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1239 (new_serial.flags & ASYNC_FLAGS)); 1240 priv->custom_divisor = new_serial.custom_divisor; 1241 1242 write_latency_timer(port); 1243 1244 check_and_exit: 1245 if ((old_priv.flags & ASYNC_SPD_MASK) != 1246 (priv->flags & ASYNC_SPD_MASK)) { 1247 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1248 tty->alt_speed = 57600; 1249 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1250 tty->alt_speed = 115200; 1251 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1252 tty->alt_speed = 230400; 1253 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1254 tty->alt_speed = 460800; 1255 else 1256 tty->alt_speed = 0; 1257 } 1258 if (((old_priv.flags & ASYNC_SPD_MASK) != 1259 (priv->flags & ASYNC_SPD_MASK)) || 1260 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1261 (old_priv.custom_divisor != priv->custom_divisor))) { 1262 unlock_kernel(); 1263 change_speed(tty, port); 1264 } 1265 else 1266 unlock_kernel(); 1267 return 0; 1268 1269 } /* set_serial_info */ 1270 1271 1272 /* Determine type of FTDI chip based on USB config and descriptor. */ 1273 static void ftdi_determine_type(struct usb_serial_port *port) 1274 { 1275 struct ftdi_private *priv = usb_get_serial_port_data(port); 1276 struct usb_serial *serial = port->serial; 1277 struct usb_device *udev = serial->dev; 1278 unsigned version; 1279 unsigned interfaces; 1280 1281 /* Assume it is not the original SIO device for now. */ 1282 priv->baud_base = 48000000 / 2; 1283 priv->write_offset = 0; 1284 1285 version = le16_to_cpu(udev->descriptor.bcdDevice); 1286 interfaces = udev->actconfig->desc.bNumInterfaces; 1287 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1288 version, interfaces); 1289 if (interfaces > 1) { 1290 int inter; 1291 1292 /* Multiple interfaces.*/ 1293 if (version == 0x0800) { 1294 priv->chip_type = FT4232H; 1295 /* Hi-speed - baud clock runs at 120MHz */ 1296 priv->baud_base = 120000000 / 2; 1297 } else if (version == 0x0700) { 1298 priv->chip_type = FT2232H; 1299 /* Hi-speed - baud clock runs at 120MHz */ 1300 priv->baud_base = 120000000 / 2; 1301 } else 1302 priv->chip_type = FT2232C; 1303 1304 /* Determine interface code. */ 1305 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1306 if (inter == 0) { 1307 priv->interface = INTERFACE_A; 1308 } else if (inter == 1) { 1309 priv->interface = INTERFACE_B; 1310 } else if (inter == 2) { 1311 priv->interface = INTERFACE_C; 1312 } else if (inter == 3) { 1313 priv->interface = INTERFACE_D; 1314 } 1315 /* BM-type devices have a bug where bcdDevice gets set 1316 * to 0x200 when iSerialNumber is 0. */ 1317 if (version < 0x500) { 1318 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1319 __func__); 1320 } 1321 } else if (version < 0x200) { 1322 /* Old device. Assume its the original SIO. */ 1323 priv->chip_type = SIO; 1324 priv->baud_base = 12000000 / 16; 1325 priv->write_offset = 1; 1326 } else if (version < 0x400) { 1327 /* Assume its an FT8U232AM (or FT8U245AM) */ 1328 /* (It might be a BM because of the iSerialNumber bug, 1329 * but it will still work as an AM device.) */ 1330 priv->chip_type = FT8U232AM; 1331 } else if (version < 0x600) { 1332 /* Assume its an FT232BM (or FT245BM) */ 1333 priv->chip_type = FT232BM; 1334 } else { 1335 /* Assume its an FT232R */ 1336 priv->chip_type = FT232RL; 1337 } 1338 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); 1339 } 1340 1341 1342 /* Determine the maximum packet size for the device. This depends on the chip 1343 * type and the USB host capabilities. The value should be obtained from the 1344 * device descriptor as the chip will use the appropriate values for the host.*/ 1345 static void ftdi_set_max_packet_size(struct usb_serial_port *port) 1346 { 1347 struct ftdi_private *priv = usb_get_serial_port_data(port); 1348 struct usb_serial *serial = port->serial; 1349 struct usb_device *udev = serial->dev; 1350 1351 struct usb_interface *interface = serial->interface; 1352 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc; 1353 1354 unsigned num_endpoints; 1355 int i = 0; 1356 1357 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; 1358 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints); 1359 1360 /* NOTE: some customers have programmed FT232R/FT245R devices 1361 * with an endpoint size of 0 - not good. In this case, we 1362 * want to override the endpoint descriptor setting and use a 1363 * value of 64 for wMaxPacketSize */ 1364 for (i = 0; i < num_endpoints; i++) { 1365 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1, 1366 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize); 1367 ep_desc = &interface->cur_altsetting->endpoint[i].desc; 1368 if (ep_desc->wMaxPacketSize == 0) { 1369 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1370 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i); 1371 } 1372 } 1373 1374 /* set max packet size based on descriptor */ 1375 priv->max_packet_size = ep_desc->wMaxPacketSize; 1376 1377 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size); 1378 } 1379 1380 1381 /* 1382 * *************************************************************************** 1383 * Sysfs Attribute 1384 * *************************************************************************** 1385 */ 1386 1387 static ssize_t show_latency_timer(struct device *dev, 1388 struct device_attribute *attr, char *buf) 1389 { 1390 struct usb_serial_port *port = to_usb_serial_port(dev); 1391 struct ftdi_private *priv = usb_get_serial_port_data(port); 1392 if (priv->flags & ASYNC_LOW_LATENCY) 1393 return sprintf(buf, "1\n"); 1394 else 1395 return sprintf(buf, "%i\n", priv->latency); 1396 } 1397 1398 1399 /* Write a new value of the latency timer, in units of milliseconds. */ 1400 static ssize_t store_latency_timer(struct device *dev, 1401 struct device_attribute *attr, const char *valbuf, 1402 size_t count) 1403 { 1404 struct usb_serial_port *port = to_usb_serial_port(dev); 1405 struct ftdi_private *priv = usb_get_serial_port_data(port); 1406 int v = simple_strtoul(valbuf, NULL, 10); 1407 int rv = 0; 1408 1409 priv->latency = v; 1410 rv = write_latency_timer(port); 1411 if (rv < 0) 1412 return -EIO; 1413 return count; 1414 } 1415 1416 /* Write an event character directly to the FTDI register. The ASCII 1417 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1418 static ssize_t store_event_char(struct device *dev, 1419 struct device_attribute *attr, const char *valbuf, size_t count) 1420 { 1421 struct usb_serial_port *port = to_usb_serial_port(dev); 1422 struct ftdi_private *priv = usb_get_serial_port_data(port); 1423 struct usb_device *udev = port->serial->dev; 1424 char buf[1]; 1425 int v = simple_strtoul(valbuf, NULL, 10); 1426 int rv = 0; 1427 1428 dbg("%s: setting event char = %i", __func__, v); 1429 1430 rv = usb_control_msg(udev, 1431 usb_sndctrlpipe(udev, 0), 1432 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1433 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1434 v, priv->interface, 1435 buf, 0, WDR_TIMEOUT); 1436 1437 if (rv < 0) { 1438 dbg("Unable to write event character: %i", rv); 1439 return -EIO; 1440 } 1441 1442 return count; 1443 } 1444 1445 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1446 store_latency_timer); 1447 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1448 1449 static int create_sysfs_attrs(struct usb_serial_port *port) 1450 { 1451 struct ftdi_private *priv = usb_get_serial_port_data(port); 1452 int retval = 0; 1453 1454 dbg("%s", __func__); 1455 1456 /* XXX I've no idea if the original SIO supports the event_char 1457 * sysfs parameter, so I'm playing it safe. */ 1458 if (priv->chip_type != SIO) { 1459 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1460 retval = device_create_file(&port->dev, &dev_attr_event_char); 1461 if ((!retval) && 1462 (priv->chip_type == FT232BM || 1463 priv->chip_type == FT2232C || 1464 priv->chip_type == FT232RL || 1465 priv->chip_type == FT2232H || 1466 priv->chip_type == FT4232H)) { 1467 retval = device_create_file(&port->dev, 1468 &dev_attr_latency_timer); 1469 } 1470 } 1471 return retval; 1472 } 1473 1474 static void remove_sysfs_attrs(struct usb_serial_port *port) 1475 { 1476 struct ftdi_private *priv = usb_get_serial_port_data(port); 1477 1478 dbg("%s", __func__); 1479 1480 /* XXX see create_sysfs_attrs */ 1481 if (priv->chip_type != SIO) { 1482 device_remove_file(&port->dev, &dev_attr_event_char); 1483 if (priv->chip_type == FT232BM || 1484 priv->chip_type == FT2232C || 1485 priv->chip_type == FT232RL || 1486 priv->chip_type == FT2232H || 1487 priv->chip_type == FT4232H) { 1488 device_remove_file(&port->dev, &dev_attr_latency_timer); 1489 } 1490 } 1491 1492 } 1493 1494 /* 1495 * *************************************************************************** 1496 * FTDI driver specific functions 1497 * *************************************************************************** 1498 */ 1499 1500 /* Probe function to check for special devices */ 1501 static int ftdi_sio_probe(struct usb_serial *serial, 1502 const struct usb_device_id *id) 1503 { 1504 struct ftdi_sio_quirk *quirk = 1505 (struct ftdi_sio_quirk *)id->driver_info; 1506 1507 if (quirk && quirk->probe) { 1508 int ret = quirk->probe(serial); 1509 if (ret != 0) 1510 return ret; 1511 } 1512 1513 usb_set_serial_data(serial, (void *)id->driver_info); 1514 1515 return 0; 1516 } 1517 1518 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1519 { 1520 struct ftdi_private *priv; 1521 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1522 1523 1524 dbg("%s", __func__); 1525 1526 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1527 if (!priv) { 1528 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, 1529 sizeof(struct ftdi_private)); 1530 return -ENOMEM; 1531 } 1532 1533 kref_init(&priv->kref); 1534 spin_lock_init(&priv->tx_lock); 1535 init_waitqueue_head(&priv->delta_msr_wait); 1536 /* This will push the characters through immediately rather 1537 than queue a task to deliver them */ 1538 priv->flags = ASYNC_LOW_LATENCY; 1539 1540 if (quirk && quirk->port_probe) 1541 quirk->port_probe(priv); 1542 1543 /* Increase the size of read buffers */ 1544 kfree(port->bulk_in_buffer); 1545 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1546 if (!port->bulk_in_buffer) { 1547 kfree(priv); 1548 return -ENOMEM; 1549 } 1550 if (port->read_urb) { 1551 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1552 port->read_urb->transfer_buffer_length = BUFSZ; 1553 } 1554 1555 priv->port = port; 1556 1557 /* Free port's existing write urb and transfer buffer. */ 1558 if (port->write_urb) { 1559 usb_free_urb(port->write_urb); 1560 port->write_urb = NULL; 1561 } 1562 kfree(port->bulk_out_buffer); 1563 port->bulk_out_buffer = NULL; 1564 1565 usb_set_serial_port_data(port, priv); 1566 1567 ftdi_determine_type(port); 1568 ftdi_set_max_packet_size(port); 1569 read_latency_timer(port); 1570 create_sysfs_attrs(port); 1571 return 0; 1572 } 1573 1574 /* Setup for the USB-UIRT device, which requires hardwired 1575 * baudrate (38400 gets mapped to 312500) */ 1576 /* Called from usbserial:serial_probe */ 1577 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1578 { 1579 dbg("%s", __func__); 1580 1581 priv->flags |= ASYNC_SPD_CUST; 1582 priv->custom_divisor = 77; 1583 priv->force_baud = 38400; 1584 } /* ftdi_USB_UIRT_setup */ 1585 1586 /* Setup for the HE-TIRA1 device, which requires hardwired 1587 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1588 1589 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1590 { 1591 dbg("%s", __func__); 1592 1593 priv->flags |= ASYNC_SPD_CUST; 1594 priv->custom_divisor = 240; 1595 priv->force_baud = 38400; 1596 priv->force_rtscts = 1; 1597 } /* ftdi_HE_TIRA1_setup */ 1598 1599 /* 1600 * Module parameter to control latency timer for NDI FTDI-based USB devices. 1601 * If this value is not set in modprobe.conf.local its value will be set to 1ms. 1602 */ 1603 static int ndi_latency_timer = 1; 1604 1605 /* Setup for the NDI FTDI-based USB devices, which requires hardwired 1606 * baudrate (19200 gets mapped to 1200000). 1607 * 1608 * Called from usbserial:serial_probe. 1609 */ 1610 static int ftdi_NDI_device_setup(struct usb_serial *serial) 1611 { 1612 struct usb_device *udev = serial->dev; 1613 int latency = ndi_latency_timer; 1614 int rv = 0; 1615 char buf[1]; 1616 1617 if (latency == 0) 1618 latency = 1; 1619 if (latency > 99) 1620 latency = 99; 1621 1622 dbg("%s setting NDI device latency to %d", __func__, latency); 1623 dev_info(&udev->dev, "NDI device with a latency value of %d", latency); 1624 1625 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 1626 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1627 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1628 latency, 0, buf, 0, WDR_TIMEOUT); 1629 return 0; 1630 } 1631 1632 /* 1633 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1634 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1635 * userspace using openocd. 1636 */ 1637 static int ftdi_jtag_probe(struct usb_serial *serial) 1638 { 1639 struct usb_device *udev = serial->dev; 1640 struct usb_interface *interface = serial->interface; 1641 1642 dbg("%s", __func__); 1643 1644 if (interface == udev->actconfig->interface[0]) { 1645 dev_info(&udev->dev, 1646 "Ignoring serial port reserved for JTAG\n"); 1647 return -ENODEV; 1648 } 1649 1650 return 0; 1651 } 1652 1653 /* 1654 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1655 * We have to correct it if we want to read from it. 1656 */ 1657 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1658 { 1659 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1660 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1661 1662 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1663 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1664 dev_info(&serial->dev->dev, 1665 "Fixing invalid wMaxPacketSize on read pipe\n"); 1666 } 1667 1668 return 0; 1669 } 1670 1671 static void ftdi_sio_priv_release(struct kref *k) 1672 { 1673 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); 1674 1675 kfree(priv); 1676 } 1677 1678 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1679 { 1680 struct ftdi_private *priv = usb_get_serial_port_data(port); 1681 1682 dbg("%s", __func__); 1683 1684 remove_sysfs_attrs(port); 1685 1686 kref_put(&priv->kref, ftdi_sio_priv_release); 1687 1688 return 0; 1689 } 1690 1691 static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags) 1692 { 1693 struct urb *urb = port->read_urb; 1694 struct usb_serial *serial = port->serial; 1695 int result; 1696 1697 usb_fill_bulk_urb(urb, serial->dev, 1698 usb_rcvbulkpipe(serial->dev, 1699 port->bulk_in_endpointAddress), 1700 urb->transfer_buffer, 1701 urb->transfer_buffer_length, 1702 ftdi_read_bulk_callback, port); 1703 result = usb_submit_urb(urb, mem_flags); 1704 if (result) 1705 dev_err(&port->dev, 1706 "%s - failed submitting read urb, error %d\n", 1707 __func__, result); 1708 return result; 1709 } 1710 1711 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) 1712 { /* ftdi_open */ 1713 struct usb_device *dev = port->serial->dev; 1714 struct ftdi_private *priv = usb_get_serial_port_data(port); 1715 unsigned long flags; 1716 1717 int result = 0; 1718 char buf[1]; /* Needed for the usb_control_msg I think */ 1719 1720 dbg("%s", __func__); 1721 1722 spin_lock_irqsave(&priv->tx_lock, flags); 1723 priv->tx_bytes = 0; 1724 spin_unlock_irqrestore(&priv->tx_lock, flags); 1725 1726 write_latency_timer(port); 1727 1728 /* No error checking for this (will get errors later anyway) */ 1729 /* See ftdi_sio.h for description of what is reset */ 1730 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1731 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1732 FTDI_SIO_RESET_SIO, 1733 priv->interface, buf, 0, WDR_TIMEOUT); 1734 1735 /* Termios defaults are set by usb_serial_init. We don't change 1736 port->tty->termios - this would lose speed settings, etc. 1737 This is same behaviour as serial.c/rs_open() - Kuba */ 1738 1739 /* ftdi_set_termios will send usb control messages */ 1740 if (tty) 1741 ftdi_set_termios(tty, port, tty->termios); 1742 1743 /* Not throttled */ 1744 spin_lock_irqsave(&port->lock, flags); 1745 port->throttled = 0; 1746 port->throttle_req = 0; 1747 spin_unlock_irqrestore(&port->lock, flags); 1748 1749 /* Start reading from the device */ 1750 result = ftdi_submit_read_urb(port, GFP_KERNEL); 1751 if (!result) 1752 kref_get(&priv->kref); 1753 1754 return result; 1755 } /* ftdi_open */ 1756 1757 1758 static void ftdi_dtr_rts(struct usb_serial_port *port, int on) 1759 { 1760 struct ftdi_private *priv = usb_get_serial_port_data(port); 1761 char buf[1]; 1762 1763 mutex_lock(&port->serial->disc_mutex); 1764 if (!port->serial->disconnected) { 1765 /* Disable flow control */ 1766 if (!on && usb_control_msg(port->serial->dev, 1767 usb_sndctrlpipe(port->serial->dev, 0), 1768 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1769 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1770 0, priv->interface, buf, 0, 1771 WDR_TIMEOUT) < 0) { 1772 dev_err(&port->dev, "error from flowcontrol urb\n"); 1773 } 1774 /* drop RTS and DTR */ 1775 if (on) 1776 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1777 else 1778 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1779 } 1780 mutex_unlock(&port->serial->disc_mutex); 1781 } 1782 1783 /* 1784 * usbserial:__serial_close only calls ftdi_close if the point is open 1785 * 1786 * This only gets called when it is the last close 1787 * 1788 * 1789 */ 1790 1791 static void ftdi_close(struct usb_serial_port *port) 1792 { /* ftdi_close */ 1793 struct ftdi_private *priv = usb_get_serial_port_data(port); 1794 1795 dbg("%s", __func__); 1796 1797 /* shutdown our bulk read */ 1798 usb_kill_urb(port->read_urb); 1799 kref_put(&priv->kref, ftdi_sio_priv_release); 1800 } /* ftdi_close */ 1801 1802 1803 1804 /* The SIO requires the first byte to have: 1805 * B0 1 1806 * B1 0 1807 * B2..7 length of message excluding byte 0 1808 * 1809 * The new devices do not require this byte 1810 */ 1811 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1812 const unsigned char *buf, int count) 1813 { /* ftdi_write */ 1814 struct ftdi_private *priv = usb_get_serial_port_data(port); 1815 struct urb *urb; 1816 unsigned char *buffer; 1817 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1818 int status; 1819 int transfer_size; 1820 unsigned long flags; 1821 1822 dbg("%s port %d, %d bytes", __func__, port->number, count); 1823 1824 if (count == 0) { 1825 dbg("write request of 0 bytes"); 1826 return 0; 1827 } 1828 spin_lock_irqsave(&priv->tx_lock, flags); 1829 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1830 spin_unlock_irqrestore(&priv->tx_lock, flags); 1831 dbg("%s - write limit hit\n", __func__); 1832 return 0; 1833 } 1834 priv->tx_outstanding_urbs++; 1835 spin_unlock_irqrestore(&priv->tx_lock, flags); 1836 1837 data_offset = priv->write_offset; 1838 dbg("data_offset set to %d", data_offset); 1839 1840 /* Determine total transfer size */ 1841 transfer_size = count; 1842 if (data_offset > 0) { 1843 /* Original sio needs control bytes too... */ 1844 transfer_size += (data_offset * 1845 ((count + (priv->max_packet_size - 1 - data_offset)) / 1846 (priv->max_packet_size - data_offset))); 1847 } 1848 1849 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1850 if (!buffer) { 1851 dev_err(&port->dev, 1852 "%s ran out of kernel memory for urb ...\n", __func__); 1853 count = -ENOMEM; 1854 goto error_no_buffer; 1855 } 1856 1857 urb = usb_alloc_urb(0, GFP_ATOMIC); 1858 if (!urb) { 1859 dev_err(&port->dev, "%s - no more free urbs\n", __func__); 1860 count = -ENOMEM; 1861 goto error_no_urb; 1862 } 1863 1864 /* Copy data */ 1865 if (data_offset > 0) { 1866 /* Original sio requires control byte at start of 1867 each packet. */ 1868 int user_pktsz = priv->max_packet_size - data_offset; 1869 int todo = count; 1870 unsigned char *first_byte = buffer; 1871 const unsigned char *current_position = buf; 1872 1873 while (todo > 0) { 1874 if (user_pktsz > todo) 1875 user_pktsz = todo; 1876 /* Write the control byte at the front of the packet*/ 1877 *first_byte = 1 | ((user_pktsz) << 2); 1878 /* Copy data for packet */ 1879 memcpy(first_byte + data_offset, 1880 current_position, user_pktsz); 1881 first_byte += user_pktsz + data_offset; 1882 current_position += user_pktsz; 1883 todo -= user_pktsz; 1884 } 1885 } else { 1886 /* No control byte required. */ 1887 /* Copy in the data to send */ 1888 memcpy(buffer, buf, count); 1889 } 1890 1891 usb_serial_debug_data(debug, &port->dev, __func__, 1892 transfer_size, buffer); 1893 1894 /* fill the buffer and send it */ 1895 usb_fill_bulk_urb(urb, port->serial->dev, 1896 usb_sndbulkpipe(port->serial->dev, 1897 port->bulk_out_endpointAddress), 1898 buffer, transfer_size, 1899 ftdi_write_bulk_callback, port); 1900 1901 status = usb_submit_urb(urb, GFP_ATOMIC); 1902 if (status) { 1903 dev_err(&port->dev, 1904 "%s - failed submitting write urb, error %d\n", 1905 __func__, status); 1906 count = status; 1907 goto error; 1908 } else { 1909 spin_lock_irqsave(&priv->tx_lock, flags); 1910 priv->tx_outstanding_bytes += count; 1911 priv->tx_bytes += count; 1912 spin_unlock_irqrestore(&priv->tx_lock, flags); 1913 } 1914 1915 /* we are done with this urb, so let the host driver 1916 * really free it when it is finished with it */ 1917 usb_free_urb(urb); 1918 1919 dbg("%s write returning: %d", __func__, count); 1920 return count; 1921 error: 1922 usb_free_urb(urb); 1923 error_no_urb: 1924 kfree(buffer); 1925 error_no_buffer: 1926 spin_lock_irqsave(&priv->tx_lock, flags); 1927 priv->tx_outstanding_urbs--; 1928 spin_unlock_irqrestore(&priv->tx_lock, flags); 1929 return count; 1930 } /* ftdi_write */ 1931 1932 1933 /* This function may get called when the device is closed */ 1934 1935 static void ftdi_write_bulk_callback(struct urb *urb) 1936 { 1937 unsigned long flags; 1938 struct usb_serial_port *port = urb->context; 1939 struct ftdi_private *priv; 1940 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1941 unsigned long countback; 1942 int status = urb->status; 1943 1944 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1945 kfree(urb->transfer_buffer); 1946 1947 dbg("%s - port %d", __func__, port->number); 1948 1949 priv = usb_get_serial_port_data(port); 1950 if (!priv) { 1951 dbg("%s - bad port private data pointer - exiting", __func__); 1952 return; 1953 } 1954 /* account for transferred data */ 1955 countback = urb->transfer_buffer_length; 1956 data_offset = priv->write_offset; 1957 if (data_offset > 0) { 1958 /* Subtract the control bytes */ 1959 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size)); 1960 } 1961 spin_lock_irqsave(&priv->tx_lock, flags); 1962 --priv->tx_outstanding_urbs; 1963 priv->tx_outstanding_bytes -= countback; 1964 spin_unlock_irqrestore(&priv->tx_lock, flags); 1965 1966 if (status) { 1967 dbg("nonzero write bulk status received: %d", status); 1968 } 1969 1970 usb_serial_port_softint(port); 1971 } /* ftdi_write_bulk_callback */ 1972 1973 1974 static int ftdi_write_room(struct tty_struct *tty) 1975 { 1976 struct usb_serial_port *port = tty->driver_data; 1977 struct ftdi_private *priv = usb_get_serial_port_data(port); 1978 int room; 1979 unsigned long flags; 1980 1981 dbg("%s - port %d", __func__, port->number); 1982 1983 spin_lock_irqsave(&priv->tx_lock, flags); 1984 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1985 /* 1986 * We really can take anything the user throws at us 1987 * but let's pick a nice big number to tell the tty 1988 * layer that we have lots of free space 1989 */ 1990 room = 2048; 1991 } else { 1992 room = 0; 1993 } 1994 spin_unlock_irqrestore(&priv->tx_lock, flags); 1995 return room; 1996 } 1997 1998 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1999 { 2000 struct usb_serial_port *port = tty->driver_data; 2001 struct ftdi_private *priv = usb_get_serial_port_data(port); 2002 int buffered; 2003 unsigned long flags; 2004 2005 dbg("%s - port %d", __func__, port->number); 2006 2007 spin_lock_irqsave(&priv->tx_lock, flags); 2008 buffered = (int)priv->tx_outstanding_bytes; 2009 spin_unlock_irqrestore(&priv->tx_lock, flags); 2010 if (buffered < 0) { 2011 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", 2012 __func__); 2013 buffered = 0; 2014 } 2015 return buffered; 2016 } 2017 2018 static int ftdi_process_packet(struct tty_struct *tty, 2019 struct usb_serial_port *port, struct ftdi_private *priv, 2020 char *packet, int len) 2021 { 2022 int i; 2023 char status; 2024 char flag; 2025 char *ch; 2026 2027 dbg("%s - port %d", __func__, port->number); 2028 2029 if (len < 2) { 2030 dbg("malformed packet"); 2031 return 0; 2032 } 2033 2034 /* Compare new line status to the old one, signal if different/ 2035 N.B. packet may be processed more than once, but differences 2036 are only processed once. */ 2037 status = packet[0] & FTDI_STATUS_B0_MASK; 2038 if (status != priv->prev_status) { 2039 priv->diff_status |= status ^ priv->prev_status; 2040 wake_up_interruptible(&priv->delta_msr_wait); 2041 priv->prev_status = status; 2042 } 2043 2044 /* 2045 * Although the device uses a bitmask and hence can have multiple 2046 * errors on a packet - the order here sets the priority the error is 2047 * returned to the tty layer. 2048 */ 2049 flag = TTY_NORMAL; 2050 if (packet[1] & FTDI_RS_OE) { 2051 flag = TTY_OVERRUN; 2052 dbg("OVERRRUN error"); 2053 } 2054 if (packet[1] & FTDI_RS_BI) { 2055 flag = TTY_BREAK; 2056 dbg("BREAK received"); 2057 usb_serial_handle_break(port); 2058 } 2059 if (packet[1] & FTDI_RS_PE) { 2060 flag = TTY_PARITY; 2061 dbg("PARITY error"); 2062 } 2063 if (packet[1] & FTDI_RS_FE) { 2064 flag = TTY_FRAME; 2065 dbg("FRAMING error"); 2066 } 2067 2068 len -= 2; 2069 if (!len) 2070 return 0; /* status only */ 2071 ch = packet + 2; 2072 2073 if (!(port->console && port->sysrq) && flag == TTY_NORMAL) 2074 tty_insert_flip_string(tty, ch, len); 2075 else { 2076 for (i = 0; i < len; i++, ch++) { 2077 if (!usb_serial_handle_sysrq_char(tty, port, *ch)) 2078 tty_insert_flip_char(tty, *ch, flag); 2079 } 2080 } 2081 return len; 2082 } 2083 2084 static void ftdi_process_read(struct usb_serial_port *port) 2085 { 2086 struct urb *urb = port->read_urb; 2087 struct tty_struct *tty; 2088 struct ftdi_private *priv = usb_get_serial_port_data(port); 2089 char *data = (char *)urb->transfer_buffer; 2090 int i; 2091 int len; 2092 int count = 0; 2093 2094 tty = tty_port_tty_get(&port->port); 2095 if (!tty) 2096 return; 2097 2098 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) { 2099 len = min_t(int, urb->actual_length - i, priv->max_packet_size); 2100 count += ftdi_process_packet(tty, port, priv, &data[i], len); 2101 } 2102 2103 if (count) 2104 tty_flip_buffer_push(tty); 2105 tty_kref_put(tty); 2106 } 2107 2108 static void ftdi_read_bulk_callback(struct urb *urb) 2109 { 2110 struct usb_serial_port *port = urb->context; 2111 unsigned long flags; 2112 2113 dbg("%s - port %d", __func__, port->number); 2114 2115 if (urb->status) { 2116 dbg("%s - nonzero read bulk status received: %d", 2117 __func__, urb->status); 2118 return; 2119 } 2120 2121 usb_serial_debug_data(debug, &port->dev, __func__, 2122 urb->actual_length, urb->transfer_buffer); 2123 ftdi_process_read(port); 2124 2125 spin_lock_irqsave(&port->lock, flags); 2126 port->throttled = port->throttle_req; 2127 if (!port->throttled) { 2128 spin_unlock_irqrestore(&port->lock, flags); 2129 ftdi_submit_read_urb(port, GFP_ATOMIC); 2130 } else 2131 spin_unlock_irqrestore(&port->lock, flags); 2132 } 2133 2134 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2135 { 2136 struct usb_serial_port *port = tty->driver_data; 2137 struct ftdi_private *priv = usb_get_serial_port_data(port); 2138 __u16 urb_value = 0; 2139 char buf[1]; 2140 2141 /* break_state = -1 to turn on break, and 0 to turn off break */ 2142 /* see drivers/char/tty_io.c to see it used */ 2143 /* last_set_data_urb_value NEVER has the break bit set in it */ 2144 2145 if (break_state) 2146 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2147 else 2148 urb_value = priv->last_set_data_urb_value; 2149 2150 if (usb_control_msg(port->serial->dev, 2151 usb_sndctrlpipe(port->serial->dev, 0), 2152 FTDI_SIO_SET_DATA_REQUEST, 2153 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2154 urb_value , priv->interface, 2155 buf, 0, WDR_TIMEOUT) < 0) { 2156 dev_err(&port->dev, "%s FAILED to enable/disable break state " 2157 "(state was %d)\n", __func__, break_state); 2158 } 2159 2160 dbg("%s break state is %d - urb is %d", __func__, 2161 break_state, urb_value); 2162 2163 } 2164 2165 2166 /* old_termios contains the original termios settings and tty->termios contains 2167 * the new setting to be used 2168 * WARNING: set_termios calls this with old_termios in kernel space 2169 */ 2170 2171 static void ftdi_set_termios(struct tty_struct *tty, 2172 struct usb_serial_port *port, struct ktermios *old_termios) 2173 { /* ftdi_termios */ 2174 struct usb_device *dev = port->serial->dev; 2175 struct ftdi_private *priv = usb_get_serial_port_data(port); 2176 struct ktermios *termios = tty->termios; 2177 unsigned int cflag = termios->c_cflag; 2178 __u16 urb_value; /* will hold the new flags */ 2179 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2180 2181 /* Added for xon/xoff support */ 2182 unsigned int iflag = termios->c_iflag; 2183 unsigned char vstop; 2184 unsigned char vstart; 2185 2186 dbg("%s", __func__); 2187 2188 /* Force baud rate if this device requires it, unless it is set to 2189 B0. */ 2190 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2191 dbg("%s: forcing baud rate for this device", __func__); 2192 tty_encode_baud_rate(tty, priv->force_baud, 2193 priv->force_baud); 2194 } 2195 2196 /* Force RTS-CTS if this device requires it. */ 2197 if (priv->force_rtscts) { 2198 dbg("%s: forcing rtscts for this device", __func__); 2199 termios->c_cflag |= CRTSCTS; 2200 } 2201 2202 cflag = termios->c_cflag; 2203 2204 /* FIXME -For this cut I don't care if the line is really changing or 2205 not - so just do the change regardless - should be able to 2206 compare old_termios and tty->termios */ 2207 /* NOTE These routines can get interrupted by 2208 ftdi_sio_read_bulk_callback - need to examine what this means - 2209 don't see any problems yet */ 2210 2211 /* Set number of data bits, parity, stop bits */ 2212 2213 urb_value = 0; 2214 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2215 FTDI_SIO_SET_DATA_STOP_BITS_1); 2216 if (cflag & PARENB) { 2217 if (cflag & CMSPAR) 2218 urb_value |= cflag & PARODD ? 2219 FTDI_SIO_SET_DATA_PARITY_MARK : 2220 FTDI_SIO_SET_DATA_PARITY_SPACE; 2221 else 2222 urb_value |= cflag & PARODD ? 2223 FTDI_SIO_SET_DATA_PARITY_ODD : 2224 FTDI_SIO_SET_DATA_PARITY_EVEN; 2225 } else { 2226 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE; 2227 } 2228 if (cflag & CSIZE) { 2229 switch (cflag & CSIZE) { 2230 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2231 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2232 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2233 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2234 default: 2235 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); 2236 } 2237 } 2238 2239 /* This is needed by the break command since it uses the same command 2240 - but is or'ed with this value */ 2241 priv->last_set_data_urb_value = urb_value; 2242 2243 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2244 FTDI_SIO_SET_DATA_REQUEST, 2245 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2246 urb_value , priv->interface, 2247 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2248 dev_err(&port->dev, "%s FAILED to set " 2249 "databits/stopbits/parity\n", __func__); 2250 } 2251 2252 /* Now do the baudrate */ 2253 if ((cflag & CBAUD) == B0) { 2254 /* Disable flow control */ 2255 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2256 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2257 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2258 0, priv->interface, 2259 buf, 0, WDR_TIMEOUT) < 0) { 2260 dev_err(&port->dev, 2261 "%s error from disable flowcontrol urb\n", 2262 __func__); 2263 } 2264 /* Drop RTS and DTR */ 2265 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2266 } else { 2267 /* set the baudrate determined before */ 2268 if (change_speed(tty, port)) 2269 dev_err(&port->dev, "%s urb failed to set baudrate\n", 2270 __func__); 2271 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2272 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2273 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2274 } 2275 2276 /* Set flow control */ 2277 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2278 if (cflag & CRTSCTS) { 2279 dbg("%s Setting to CRTSCTS flow control", __func__); 2280 if (usb_control_msg(dev, 2281 usb_sndctrlpipe(dev, 0), 2282 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2283 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2284 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2285 buf, 0, WDR_TIMEOUT) < 0) { 2286 dev_err(&port->dev, 2287 "urb failed to set to rts/cts flow control\n"); 2288 } 2289 2290 } else { 2291 /* 2292 * Xon/Xoff code 2293 * 2294 * Check the IXOFF status in the iflag component of the 2295 * termios structure. If IXOFF is not set, the pre-xon/xoff 2296 * code is executed. 2297 */ 2298 if (iflag & IXOFF) { 2299 dbg("%s request to enable xonxoff iflag=%04x", 2300 __func__, iflag); 2301 /* Try to enable the XON/XOFF on the ftdi_sio 2302 * Set the vstart and vstop -- could have been done up 2303 * above where a lot of other dereferencing is done but 2304 * that would be very inefficient as vstart and vstop 2305 * are not always needed. 2306 */ 2307 vstart = termios->c_cc[VSTART]; 2308 vstop = termios->c_cc[VSTOP]; 2309 urb_value = (vstop << 8) | (vstart); 2310 2311 if (usb_control_msg(dev, 2312 usb_sndctrlpipe(dev, 0), 2313 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2314 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2315 urb_value , (FTDI_SIO_XON_XOFF_HS 2316 | priv->interface), 2317 buf, 0, WDR_TIMEOUT) < 0) { 2318 dev_err(&port->dev, "urb failed to set to " 2319 "xon/xoff flow control\n"); 2320 } 2321 } else { 2322 /* else clause to only run if cflag ! CRTSCTS and iflag 2323 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2324 * stack - not by device */ 2325 dbg("%s Turning off hardware flow control", __func__); 2326 if (usb_control_msg(dev, 2327 usb_sndctrlpipe(dev, 0), 2328 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2329 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2330 0, priv->interface, 2331 buf, 0, WDR_TIMEOUT) < 0) { 2332 dev_err(&port->dev, 2333 "urb failed to clear flow control\n"); 2334 } 2335 } 2336 2337 } 2338 return; 2339 } 2340 2341 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2342 { 2343 struct usb_serial_port *port = tty->driver_data; 2344 struct ftdi_private *priv = usb_get_serial_port_data(port); 2345 unsigned char buf[2]; 2346 int ret; 2347 2348 dbg("%s TIOCMGET", __func__); 2349 switch (priv->chip_type) { 2350 case SIO: 2351 /* Request the status from the device */ 2352 ret = usb_control_msg(port->serial->dev, 2353 usb_rcvctrlpipe(port->serial->dev, 0), 2354 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2355 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2356 0, 0, 2357 buf, 1, WDR_TIMEOUT); 2358 if (ret < 0) 2359 return ret; 2360 break; 2361 case FT8U232AM: 2362 case FT232BM: 2363 case FT2232C: 2364 case FT232RL: 2365 case FT2232H: 2366 case FT4232H: 2367 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2368 value) - in the same format as the data returned from the in 2369 point */ 2370 ret = usb_control_msg(port->serial->dev, 2371 usb_rcvctrlpipe(port->serial->dev, 0), 2372 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2373 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2374 0, priv->interface, 2375 buf, 2, WDR_TIMEOUT); 2376 if (ret < 0) 2377 return ret; 2378 break; 2379 default: 2380 return -EFAULT; 2381 } 2382 2383 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2384 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2385 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2386 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2387 priv->last_dtr_rts; 2388 } 2389 2390 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2391 unsigned int set, unsigned int clear) 2392 { 2393 struct usb_serial_port *port = tty->driver_data; 2394 dbg("%s TIOCMSET", __func__); 2395 return update_mctrl(port, set, clear); 2396 } 2397 2398 2399 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2400 unsigned int cmd, unsigned long arg) 2401 { 2402 struct usb_serial_port *port = tty->driver_data; 2403 struct ftdi_private *priv = usb_get_serial_port_data(port); 2404 2405 dbg("%s cmd 0x%04x", __func__, cmd); 2406 2407 /* Based on code from acm.c and others */ 2408 switch (cmd) { 2409 2410 case TIOCGSERIAL: /* gets serial port data */ 2411 return get_serial_info(port, 2412 (struct serial_struct __user *) arg); 2413 2414 case TIOCSSERIAL: /* sets serial port data */ 2415 return set_serial_info(tty, port, 2416 (struct serial_struct __user *) arg); 2417 2418 /* 2419 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2420 * - mask passed in arg for lines of interest 2421 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2422 * Caller should use TIOCGICOUNT to see which one it was. 2423 * 2424 * This code is borrowed from linux/drivers/char/serial.c 2425 */ 2426 case TIOCMIWAIT: 2427 while (priv != NULL) { 2428 interruptible_sleep_on(&priv->delta_msr_wait); 2429 /* see if a signal did it */ 2430 if (signal_pending(current)) 2431 return -ERESTARTSYS; 2432 else { 2433 char diff = priv->diff_status; 2434 2435 if (diff == 0) 2436 return -EIO; /* no change => error */ 2437 2438 /* Consume all events */ 2439 priv->diff_status = 0; 2440 2441 /* Return 0 if caller wanted to know about 2442 these bits */ 2443 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2444 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2445 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2446 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2447 return 0; 2448 } 2449 /* 2450 * Otherwise caller can't care less about what 2451 * happened,and so we continue to wait for more 2452 * events. 2453 */ 2454 } 2455 } 2456 return 0; 2457 default: 2458 break; 2459 } 2460 /* This is not necessarily an error - turns out the higher layers 2461 * will do some ioctls themselves (see comment above) 2462 */ 2463 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2464 return -ENOIOCTLCMD; 2465 } 2466 2467 static void ftdi_throttle(struct tty_struct *tty) 2468 { 2469 struct usb_serial_port *port = tty->driver_data; 2470 unsigned long flags; 2471 2472 dbg("%s - port %d", __func__, port->number); 2473 2474 spin_lock_irqsave(&port->lock, flags); 2475 port->throttle_req = 1; 2476 spin_unlock_irqrestore(&port->lock, flags); 2477 } 2478 2479 void ftdi_unthrottle(struct tty_struct *tty) 2480 { 2481 struct usb_serial_port *port = tty->driver_data; 2482 int was_throttled; 2483 unsigned long flags; 2484 2485 dbg("%s - port %d", __func__, port->number); 2486 2487 spin_lock_irqsave(&port->lock, flags); 2488 was_throttled = port->throttled; 2489 port->throttled = port->throttle_req = 0; 2490 spin_unlock_irqrestore(&port->lock, flags); 2491 2492 /* Resubmit urb if throttled and open. */ 2493 if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags)) 2494 ftdi_submit_read_urb(port, GFP_KERNEL); 2495 } 2496 2497 static int __init ftdi_init(void) 2498 { 2499 int retval; 2500 2501 dbg("%s", __func__); 2502 if (vendor > 0 && product > 0) { 2503 /* Add user specified VID/PID to reserved element of table. */ 2504 int i; 2505 for (i = 0; id_table_combined[i].idVendor; i++) 2506 ; 2507 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2508 id_table_combined[i].idVendor = vendor; 2509 id_table_combined[i].idProduct = product; 2510 } 2511 retval = usb_serial_register(&ftdi_sio_device); 2512 if (retval) 2513 goto failed_sio_register; 2514 retval = usb_register(&ftdi_driver); 2515 if (retval) 2516 goto failed_usb_register; 2517 2518 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 2519 DRIVER_DESC "\n"); 2520 return 0; 2521 failed_usb_register: 2522 usb_serial_deregister(&ftdi_sio_device); 2523 failed_sio_register: 2524 return retval; 2525 } 2526 2527 2528 static void __exit ftdi_exit(void) 2529 { 2530 2531 dbg("%s", __func__); 2532 2533 usb_deregister(&ftdi_driver); 2534 usb_serial_deregister(&ftdi_sio_device); 2535 2536 } 2537 2538 2539 module_init(ftdi_init); 2540 module_exit(ftdi_exit); 2541 2542 MODULE_AUTHOR(DRIVER_AUTHOR); 2543 MODULE_DESCRIPTION(DRIVER_DESC); 2544 MODULE_LICENSE("GPL"); 2545 2546 module_param(debug, bool, S_IRUGO | S_IWUSR); 2547 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2548 module_param(vendor, ushort, 0); 2549 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2550 __MODULE_STRING(FTDI_VID)")"); 2551 module_param(product, ushort, 0); 2552 MODULE_PARM_DESC(product, "User specified product ID"); 2553 2554 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR); 2555 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override"); 2556