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 48 /* 49 * Version Information 50 */ 51 #define DRIVER_VERSION "v1.5.0" 52 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>" 53 #define DRIVER_DESC "USB FTDI Serial Converters Driver" 54 55 static int debug; 56 static __u16 vendor = FTDI_VID; 57 static __u16 product; 58 59 struct ftdi_private { 60 struct kref kref; 61 ftdi_chip_type_t chip_type; 62 /* type of device, either SIO or FT8U232AM */ 63 int baud_base; /* baud base clock for divisor setting */ 64 int custom_divisor; /* custom_divisor kludge, this is for 65 baud_base (different from what goes to the 66 chip!) */ 67 __u16 last_set_data_urb_value ; 68 /* the last data state set - needed for doing 69 * a break 70 */ 71 int write_offset; /* This is the offset in the usb data block to 72 * write the serial data - it varies between 73 * devices 74 */ 75 int flags; /* some ASYNC_xxxx flags are supported */ 76 unsigned long last_dtr_rts; /* saved modem control outputs */ 77 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ 78 char prev_status, diff_status; /* Used for TIOCMIWAIT */ 79 __u8 rx_flags; /* receive state flags (throttling) */ 80 spinlock_t rx_lock; /* spinlock for receive state */ 81 struct delayed_work rx_work; 82 struct usb_serial_port *port; 83 int rx_processed; 84 unsigned long rx_bytes; 85 86 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface 87 (0 for FT232/245) */ 88 89 speed_t force_baud; /* if non-zero, force the baud rate to 90 this value */ 91 int force_rtscts; /* if non-zero, force RTS-CTS to always 92 be enabled */ 93 94 unsigned int latency; /* latency setting in use */ 95 spinlock_t tx_lock; /* spinlock for transmit state */ 96 unsigned long tx_bytes; 97 unsigned long tx_outstanding_bytes; 98 unsigned long tx_outstanding_urbs; 99 unsigned short max_packet_size; 100 }; 101 102 /* struct ftdi_sio_quirk is used by devices requiring special attention. */ 103 struct ftdi_sio_quirk { 104 int (*probe)(struct usb_serial *); 105 /* Special settings for probed ports. */ 106 void (*port_probe)(struct ftdi_private *); 107 }; 108 109 static int ftdi_jtag_probe(struct usb_serial *serial); 110 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial); 111 static int ftdi_NDI_device_setup(struct usb_serial *serial); 112 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv); 113 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv); 114 115 static struct ftdi_sio_quirk ftdi_jtag_quirk = { 116 .probe = ftdi_jtag_probe, 117 }; 118 119 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = { 120 .probe = ftdi_mtxorb_hack_setup, 121 }; 122 123 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = { 124 .probe = ftdi_NDI_device_setup, 125 }; 126 127 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = { 128 .port_probe = ftdi_USB_UIRT_setup, 129 }; 130 131 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = { 132 .port_probe = ftdi_HE_TIRA1_setup, 133 }; 134 135 /* 136 * The 8U232AM has the same API as the sio except for: 137 * - it can support MUCH higher baudrates; up to: 138 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz 139 * o 230400 at 12MHz 140 * so .. 8U232AM's baudrate setting codes are different 141 * - it has a two byte status code. 142 * - it returns characters every 16ms (the FTDI does it every 40ms) 143 * 144 * the bcdDevice value is used to differentiate FT232BM and FT245BM from 145 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID 146 * combinations in both tables. 147 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices, 148 * but I don't know if those ever went into mass production. [Ian Abbott] 149 */ 150 151 152 153 static struct usb_device_id id_table_combined [] = { 154 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) }, 155 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) }, 156 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) }, 157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) }, 158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) }, 159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) }, 160 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) }, 161 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) }, 162 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) }, 163 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) }, 164 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) }, 165 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, 166 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, 167 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, 168 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) }, 169 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) }, 170 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) }, 171 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) }, 172 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) }, 173 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) }, 174 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) }, 175 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) }, 176 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) }, 177 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) }, 178 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) }, 179 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) }, 180 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) }, 181 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) }, 182 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) }, 183 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) }, 184 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) }, 185 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) }, 186 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) }, 187 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) }, 188 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) }, 189 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) }, 190 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) }, 191 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) }, 192 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) }, 193 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) }, 194 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) }, 195 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) }, 196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) }, 197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) }, 198 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) }, 199 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) }, 200 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) }, 201 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) }, 202 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) }, 203 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) }, 204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) }, 205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) }, 206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) }, 207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) }, 208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) }, 209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) }, 210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) }, 211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) }, 212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) }, 213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) }, 214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) }, 215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) }, 216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) }, 217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) }, 218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) }, 219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) }, 220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) }, 221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) }, 222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) }, 223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) }, 224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) }, 225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) }, 226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) }, 227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) }, 228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) }, 229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) }, 230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) }, 231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) }, 232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) }, 233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) }, 234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) }, 235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) }, 236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) }, 237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) }, 238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) }, 239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) }, 240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) }, 241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) }, 242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) }, 243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID), 244 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) }, 246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) }, 247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) }, 248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) }, 249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID), 250 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) }, 252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) }, 253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) }, 254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) }, 255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) }, 256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) }, 257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) }, 258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) }, 259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) }, 260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) }, 261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) }, 262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) }, 263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) }, 264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) }, 265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) }, 266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) }, 267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) }, 268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) }, 269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) }, 270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) }, 271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) }, 272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) }, 273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) }, 274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) }, 275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) }, 276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) }, 277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) }, 278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) }, 279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) }, 280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) }, 281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) }, 282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) }, 283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) }, 284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) }, 285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) }, 286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) }, 287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) }, 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) }, 289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID), 290 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID), 292 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID), 294 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID), 296 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID), 298 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID), 300 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) }, 302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) }, 303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) }, 304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) }, 305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) }, 306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) }, 307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) }, 308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) }, 309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) }, 310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) }, 311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) }, 312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) }, 313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) }, 314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) }, 315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) }, 316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) }, 317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) }, 318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) }, 319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) }, 320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) }, 321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) }, 322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) }, 323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) }, 324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) }, 325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) }, 326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) }, 327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) }, 328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) }, 329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) }, 330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) }, 331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) }, 332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) }, 333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) }, 334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) }, 335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) }, 336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) }, 337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) }, 338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) }, 339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) }, 340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) }, 341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) }, 342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) }, 343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) }, 344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) }, 345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) }, 346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) }, 347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) }, 348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) }, 349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) }, 350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) }, 351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) }, 352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) }, 353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) }, 354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) }, 355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) }, 356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) }, 357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) }, 358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) }, 359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) }, 360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) }, 361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) }, 362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) }, 363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) }, 364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) }, 365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) }, 366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) }, 367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) }, 368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) }, 369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) }, 370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) }, 371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) }, 372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) }, 373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) }, 374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) }, 375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) }, 376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) }, 377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) }, 378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) }, 379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) }, 380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) }, 381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) }, 382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) }, 383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) }, 384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) }, 385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) }, 386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) }, 387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) }, 388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) }, 389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) }, 390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) }, 391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) }, 392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) }, 393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) }, 394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) }, 395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) }, 396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) }, 397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) }, 398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) }, 399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) }, 400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) }, 401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) }, 402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) }, 403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) }, 404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) }, 405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) }, 406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) }, 407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) }, 408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) }, 409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) }, 410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) }, 411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) }, 412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) }, 413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) }, 414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) }, 415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) }, 416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) }, 417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) }, 418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) }, 419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) }, 420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) }, 421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) }, 422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) }, 423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) }, 424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) }, 425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) }, 426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) }, 427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) }, 428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) }, 429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) }, 430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) }, 431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) }, 432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) }, 433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) }, 434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) }, 435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) }, 436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) }, 437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) }, 438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) }, 439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) }, 440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) }, 441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) }, 442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) }, 443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) }, 444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) }, 445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) }, 446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) }, 447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) }, 448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) }, 449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) }, 450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) }, 451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) }, 452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) }, 453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) }, 454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) }, 455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) }, 456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) }, 457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) }, 458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) }, 459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) }, 460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) }, 461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) }, 462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) }, 463 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) }, 464 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) }, 465 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) }, 466 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) }, 467 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) }, 468 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) }, 469 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) }, 470 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) }, 471 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) }, 472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) }, 473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) }, 474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) }, 475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) }, 476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) }, 477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) }, 478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) }, 479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) }, 480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) }, 481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) }, 482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) }, 483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) }, 484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) }, 485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) }, 486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) }, 487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) }, 488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) }, 489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) }, 490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) }, 491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) }, 492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) }, 493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) }, 494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) }, 495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) }, 496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) }, 497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) }, 498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) }, 499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) }, 500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) }, 501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) }, 502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) }, 503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) }, 504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) }, 505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) }, 506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) }, 507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) }, 508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) }, 509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) }, 510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) }, 511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) }, 512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) }, 513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) }, 514 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) }, 515 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) }, 516 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) }, 517 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) }, 518 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) }, 519 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) }, 520 { USB_DEVICE(OCT_VID, OCT_US101_PID) }, 521 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID), 522 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk }, 523 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID), 524 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk }, 525 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) }, 526 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) }, 527 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) }, 528 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) }, 529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) }, 530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) }, 531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) }, 532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) }, 533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) }, 534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) }, 535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) }, 536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) }, 537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) }, 538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) }, 539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) }, 540 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) }, 541 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) }, 542 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) }, 543 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) }, 544 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) }, 545 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) }, 546 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) }, 547 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) }, 548 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) }, 549 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) }, 550 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) }, 551 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) }, 552 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) }, 553 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) }, 554 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) }, 555 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) }, 556 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) }, 557 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) }, 558 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) }, 559 /* 560 * Due to many user requests for multiple ELV devices we enable 561 * them by default. 562 */ 563 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) }, 564 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) }, 565 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) }, 566 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) }, 567 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) }, 568 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) }, 569 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) }, 570 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) }, 571 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) }, 572 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) }, 573 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) }, 574 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) }, 575 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) }, 576 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) }, 577 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) }, 578 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) }, 579 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) }, 580 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) }, 581 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) }, 582 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) }, 583 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) }, 584 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, 585 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, 586 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) }, 587 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) }, 588 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) }, 589 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) }, 590 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) }, 591 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) }, 592 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) }, 593 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) }, 594 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) }, 595 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) }, 596 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) }, 597 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) }, 598 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) }, 599 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) }, 600 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) }, 601 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) }, 602 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, 603 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, 604 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, 605 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, 606 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, 607 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, 608 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, 609 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, 610 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) }, 611 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) }, 612 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) }, 613 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) }, 614 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) }, 615 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) }, 616 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) }, 617 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) }, 618 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, 619 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, 620 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) }, 621 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) }, 622 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) }, 623 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) }, 624 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) }, 625 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) }, 626 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) }, 627 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) }, 628 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) }, 629 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) }, 630 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, 631 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, 632 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, 633 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, 634 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, 635 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, 636 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) }, 637 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) }, 638 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) }, 639 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) }, 640 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) }, 641 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) }, 642 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) }, 643 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) }, 644 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) }, 645 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) }, 646 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, 647 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, 648 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, 649 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, 650 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, 651 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) }, 652 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) }, 653 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) }, 654 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) }, 655 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) }, 656 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) }, 657 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) }, 658 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) }, 659 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) }, 660 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID), 661 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 662 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID), 663 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 664 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID), 665 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 666 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID), 667 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 668 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID), 669 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 670 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, 671 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, 672 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) }, 673 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, 674 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, 675 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, 676 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), 677 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 678 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), 679 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 680 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), 681 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 682 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID), 683 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 684 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID), 685 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 686 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID), 687 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 688 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, 689 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, 690 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) }, 691 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) }, 692 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) }, 693 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) }, 694 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) }, 695 { USB_DEVICE(ATMEL_VID, STK541_PID) }, 696 { USB_DEVICE(DE_VID, STB_PID) }, 697 { USB_DEVICE(DE_VID, WHT_PID) }, 698 { USB_DEVICE(ADI_VID, ADI_GNICE_PID), 699 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 700 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID), 701 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 702 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) }, 703 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID), 704 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 705 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) }, 706 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) }, 707 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) }, 708 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID), 709 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 710 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) }, 711 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) }, 712 { }, /* Optional parameter entry */ 713 { } /* Terminating entry */ 714 }; 715 716 MODULE_DEVICE_TABLE(usb, id_table_combined); 717 718 static struct usb_driver ftdi_driver = { 719 .name = "ftdi_sio", 720 .probe = usb_serial_probe, 721 .disconnect = usb_serial_disconnect, 722 .id_table = id_table_combined, 723 .no_dynamic_id = 1, 724 }; 725 726 static const char *ftdi_chip_name[] = { 727 [SIO] = "SIO", /* the serial part of FT8U100AX */ 728 [FT8U232AM] = "FT8U232AM", 729 [FT232BM] = "FT232BM", 730 [FT2232C] = "FT2232C", 731 [FT232RL] = "FT232RL", 732 [FT2232H] = "FT2232H", 733 [FT4232H] = "FT4232H" 734 }; 735 736 737 /* Constants for read urb and write urb */ 738 #define BUFSZ 512 739 740 /* rx_flags */ 741 #define THROTTLED 0x01 742 #define ACTUALLY_THROTTLED 0x02 743 744 /* Used for TIOCMIWAIT */ 745 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 746 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 747 /* End TIOCMIWAIT */ 748 749 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 750 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 751 752 /* function prototypes for a FTDI serial converter */ 753 static int ftdi_sio_probe(struct usb_serial *serial, 754 const struct usb_device_id *id); 755 static int ftdi_sio_port_probe(struct usb_serial_port *port); 756 static int ftdi_sio_port_remove(struct usb_serial_port *port); 757 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port); 758 static void ftdi_close(struct usb_serial_port *port); 759 static void ftdi_dtr_rts(struct usb_serial_port *port, int on); 760 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 761 const unsigned char *buf, int count); 762 static int ftdi_write_room(struct tty_struct *tty); 763 static int ftdi_chars_in_buffer(struct tty_struct *tty); 764 static void ftdi_write_bulk_callback(struct urb *urb); 765 static void ftdi_read_bulk_callback(struct urb *urb); 766 static void ftdi_process_read(struct work_struct *work); 767 static void ftdi_set_termios(struct tty_struct *tty, 768 struct usb_serial_port *port, struct ktermios *old); 769 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 770 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 771 unsigned int set, unsigned int clear); 772 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 773 unsigned int cmd, unsigned long arg); 774 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 775 static void ftdi_throttle(struct tty_struct *tty); 776 static void ftdi_unthrottle(struct tty_struct *tty); 777 778 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 779 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 780 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 781 static __u32 ftdi_232bm_baud_to_divisor(int baud); 782 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base); 783 static __u32 ftdi_2232h_baud_to_divisor(int baud); 784 785 static struct usb_serial_driver ftdi_sio_device = { 786 .driver = { 787 .owner = THIS_MODULE, 788 .name = "ftdi_sio", 789 }, 790 .description = "FTDI USB Serial Device", 791 .usb_driver = &ftdi_driver , 792 .id_table = id_table_combined, 793 .num_ports = 1, 794 .probe = ftdi_sio_probe, 795 .port_probe = ftdi_sio_port_probe, 796 .port_remove = ftdi_sio_port_remove, 797 .open = ftdi_open, 798 .close = ftdi_close, 799 .dtr_rts = ftdi_dtr_rts, 800 .throttle = ftdi_throttle, 801 .unthrottle = ftdi_unthrottle, 802 .write = ftdi_write, 803 .write_room = ftdi_write_room, 804 .chars_in_buffer = ftdi_chars_in_buffer, 805 .read_bulk_callback = ftdi_read_bulk_callback, 806 .write_bulk_callback = ftdi_write_bulk_callback, 807 .tiocmget = ftdi_tiocmget, 808 .tiocmset = ftdi_tiocmset, 809 .ioctl = ftdi_ioctl, 810 .set_termios = ftdi_set_termios, 811 .break_ctl = ftdi_break_ctl, 812 }; 813 814 815 #define WDR_TIMEOUT 5000 /* default urb timeout */ 816 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 817 818 /* High and low are for DTR, RTS etc etc */ 819 #define HIGH 1 820 #define LOW 0 821 822 /* number of outstanding urbs to prevent userspace DoS from happening */ 823 #define URB_UPPER_LIMIT 42 824 825 /* 826 * *************************************************************************** 827 * Utility functions 828 * *************************************************************************** 829 */ 830 831 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 832 { 833 unsigned short int divisor; 834 /* divisor shifted 3 bits to the left */ 835 int divisor3 = base / 2 / baud; 836 if ((divisor3 & 0x7) == 7) 837 divisor3++; /* round x.7/8 up to x+1 */ 838 divisor = divisor3 >> 3; 839 divisor3 &= 0x7; 840 if (divisor3 == 1) 841 divisor |= 0xc000; 842 else if (divisor3 >= 4) 843 divisor |= 0x4000; 844 else if (divisor3 != 0) 845 divisor |= 0x8000; 846 else if (divisor == 1) 847 divisor = 0; /* special case for maximum baud rate */ 848 return divisor; 849 } 850 851 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 852 { 853 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 854 } 855 856 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 857 { 858 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 859 __u32 divisor; 860 /* divisor shifted 3 bits to the left */ 861 int divisor3 = base / 2 / baud; 862 divisor = divisor3 >> 3; 863 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 864 /* Deal with special cases for highest baud rates. */ 865 if (divisor == 1) 866 divisor = 0; 867 else if (divisor == 0x4001) 868 divisor = 1; 869 return divisor; 870 } 871 872 static __u32 ftdi_232bm_baud_to_divisor(int baud) 873 { 874 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 875 } 876 877 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base) 878 { 879 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 880 __u32 divisor; 881 int divisor3; 882 883 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */ 884 divisor3 = (base / 10 / baud) * 8; 885 886 divisor = divisor3 >> 3; 887 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 888 /* Deal with special cases for highest baud rates. */ 889 if (divisor == 1) 890 divisor = 0; 891 else if (divisor == 0x4001) 892 divisor = 1; 893 /* 894 * Set this bit to turn off a divide by 2.5 on baud rate generator 895 * This enables baud rates up to 12Mbaud but cannot reach below 1200 896 * baud with this bit set 897 */ 898 divisor |= 0x00020000; 899 return divisor; 900 } 901 902 static __u32 ftdi_2232h_baud_to_divisor(int baud) 903 { 904 return ftdi_2232h_baud_base_to_divisor(baud, 120000000); 905 } 906 907 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 908 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 909 910 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 911 unsigned int clear) 912 { 913 struct ftdi_private *priv = usb_get_serial_port_data(port); 914 char *buf; 915 unsigned urb_value; 916 int rv; 917 918 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 919 dbg("%s - DTR|RTS not being set|cleared", __func__); 920 return 0; /* no change */ 921 } 922 923 buf = kmalloc(1, GFP_NOIO); 924 if (!buf) 925 return -ENOMEM; 926 927 clear &= ~set; /* 'set' takes precedence over 'clear' */ 928 urb_value = 0; 929 if (clear & TIOCM_DTR) 930 urb_value |= FTDI_SIO_SET_DTR_LOW; 931 if (clear & TIOCM_RTS) 932 urb_value |= FTDI_SIO_SET_RTS_LOW; 933 if (set & TIOCM_DTR) 934 urb_value |= FTDI_SIO_SET_DTR_HIGH; 935 if (set & TIOCM_RTS) 936 urb_value |= FTDI_SIO_SET_RTS_HIGH; 937 rv = usb_control_msg(port->serial->dev, 938 usb_sndctrlpipe(port->serial->dev, 0), 939 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 940 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 941 urb_value, priv->interface, 942 buf, 0, WDR_TIMEOUT); 943 944 kfree(buf); 945 if (rv < 0) { 946 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 947 __func__, 948 (set & TIOCM_DTR) ? "HIGH" : 949 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 950 (set & TIOCM_RTS) ? "HIGH" : 951 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 952 } else { 953 dbg("%s - DTR %s, RTS %s", __func__, 954 (set & TIOCM_DTR) ? "HIGH" : 955 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 956 (set & TIOCM_RTS) ? "HIGH" : 957 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 958 /* FIXME: locking on last_dtr_rts */ 959 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 960 } 961 return rv; 962 } 963 964 965 static __u32 get_ftdi_divisor(struct tty_struct *tty, 966 struct usb_serial_port *port) 967 { /* get_ftdi_divisor */ 968 struct ftdi_private *priv = usb_get_serial_port_data(port); 969 __u32 div_value = 0; 970 int div_okay = 1; 971 int baud; 972 973 /* 974 * The logic involved in setting the baudrate can be cleanly split into 975 * 3 steps. 976 * 1. Standard baud rates are set in tty->termios->c_cflag 977 * 2. If these are not enough, you can set any speed using alt_speed as 978 * follows: 979 * - set tty->termios->c_cflag speed to B38400 980 * - set your real speed in tty->alt_speed; it gets ignored when 981 * alt_speed==0, (or) 982 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 983 * follows: 984 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 985 * this just sets alt_speed to (HI: 57600, VHI: 115200, 986 * SHI: 230400, WARP: 460800) 987 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 988 * 3. You can also set baud rate by setting custom divisor as follows 989 * - set tty->termios->c_cflag speed to B38400 990 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 991 * follows: 992 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 993 * o custom_divisor set to baud_base / your_new_baudrate 994 * ** Step 3 is done courtesy of code borrowed from serial.c 995 * I should really spend some time and separate + move this common 996 * code to serial.c, it is replicated in nearly every serial driver 997 * you see. 998 */ 999 1000 /* 1. Get the baud rate from the tty settings, this observes 1001 alt_speed hack */ 1002 1003 baud = tty_get_baud_rate(tty); 1004 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 1005 1006 /* 2. Observe async-compatible custom_divisor hack, update baudrate 1007 if needed */ 1008 1009 if (baud == 38400 && 1010 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1011 (priv->custom_divisor)) { 1012 baud = priv->baud_base / priv->custom_divisor; 1013 dbg("%s - custom divisor %d sets baud rate to %d", 1014 __func__, priv->custom_divisor, baud); 1015 } 1016 1017 /* 3. Convert baudrate to device-specific divisor */ 1018 1019 if (!baud) 1020 baud = 9600; 1021 switch (priv->chip_type) { 1022 case SIO: /* SIO chip */ 1023 switch (baud) { 1024 case 300: div_value = ftdi_sio_b300; break; 1025 case 600: div_value = ftdi_sio_b600; break; 1026 case 1200: div_value = ftdi_sio_b1200; break; 1027 case 2400: div_value = ftdi_sio_b2400; break; 1028 case 4800: div_value = ftdi_sio_b4800; break; 1029 case 9600: div_value = ftdi_sio_b9600; break; 1030 case 19200: div_value = ftdi_sio_b19200; break; 1031 case 38400: div_value = ftdi_sio_b38400; break; 1032 case 57600: div_value = ftdi_sio_b57600; break; 1033 case 115200: div_value = ftdi_sio_b115200; break; 1034 } /* baud */ 1035 if (div_value == 0) { 1036 dbg("%s - Baudrate (%d) requested is not supported", 1037 __func__, baud); 1038 div_value = ftdi_sio_b9600; 1039 baud = 9600; 1040 div_okay = 0; 1041 } 1042 break; 1043 case FT8U232AM: /* 8U232AM chip */ 1044 if (baud <= 3000000) { 1045 div_value = ftdi_232am_baud_to_divisor(baud); 1046 } else { 1047 dbg("%s - Baud rate too high!", __func__); 1048 baud = 9600; 1049 div_value = ftdi_232am_baud_to_divisor(9600); 1050 div_okay = 0; 1051 } 1052 break; 1053 case FT232BM: /* FT232BM chip */ 1054 case FT2232C: /* FT2232C chip */ 1055 case FT232RL: 1056 if (baud <= 3000000) { 1057 __u16 product_id = le16_to_cpu( 1058 port->serial->dev->descriptor.idProduct); 1059 if (((FTDI_NDI_HUC_PID == product_id) || 1060 (FTDI_NDI_SPECTRA_SCU_PID == product_id) || 1061 (FTDI_NDI_FUTURE_2_PID == product_id) || 1062 (FTDI_NDI_FUTURE_3_PID == product_id) || 1063 (FTDI_NDI_AURORA_SCU_PID == product_id)) && 1064 (baud == 19200)) { 1065 baud = 1200000; 1066 } 1067 div_value = ftdi_232bm_baud_to_divisor(baud); 1068 } else { 1069 dbg("%s - Baud rate too high!", __func__); 1070 div_value = ftdi_232bm_baud_to_divisor(9600); 1071 div_okay = 0; 1072 baud = 9600; 1073 } 1074 break; 1075 case FT2232H: /* FT2232H chip */ 1076 case FT4232H: /* FT4232H chip */ 1077 if ((baud <= 12000000) & (baud >= 1200)) { 1078 div_value = ftdi_2232h_baud_to_divisor(baud); 1079 } else if (baud < 1200) { 1080 div_value = ftdi_232bm_baud_to_divisor(baud); 1081 } else { 1082 dbg("%s - Baud rate too high!", __func__); 1083 div_value = ftdi_232bm_baud_to_divisor(9600); 1084 div_okay = 0; 1085 baud = 9600; 1086 } 1087 break; 1088 } /* priv->chip_type */ 1089 1090 if (div_okay) { 1091 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 1092 __func__, baud, (unsigned long)div_value, 1093 ftdi_chip_name[priv->chip_type]); 1094 } 1095 1096 tty_encode_baud_rate(tty, baud, baud); 1097 return div_value; 1098 } 1099 1100 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 1101 { 1102 struct ftdi_private *priv = usb_get_serial_port_data(port); 1103 char *buf; 1104 __u16 urb_value; 1105 __u16 urb_index; 1106 __u32 urb_index_value; 1107 int rv; 1108 1109 buf = kmalloc(1, GFP_NOIO); 1110 if (!buf) 1111 return -ENOMEM; 1112 1113 urb_index_value = get_ftdi_divisor(tty, port); 1114 urb_value = (__u16)urb_index_value; 1115 urb_index = (__u16)(urb_index_value >> 16); 1116 if (priv->interface) { /* FT2232C */ 1117 urb_index = (__u16)((urb_index << 8) | priv->interface); 1118 } 1119 1120 rv = usb_control_msg(port->serial->dev, 1121 usb_sndctrlpipe(port->serial->dev, 0), 1122 FTDI_SIO_SET_BAUDRATE_REQUEST, 1123 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1124 urb_value, urb_index, 1125 buf, 0, WDR_SHORT_TIMEOUT); 1126 1127 kfree(buf); 1128 return rv; 1129 } 1130 1131 static int write_latency_timer(struct usb_serial_port *port) 1132 { 1133 struct ftdi_private *priv = usb_get_serial_port_data(port); 1134 struct usb_device *udev = port->serial->dev; 1135 char buf[1]; 1136 int rv = 0; 1137 int l = priv->latency; 1138 1139 if (priv->flags & ASYNC_LOW_LATENCY) 1140 l = 1; 1141 1142 dbg("%s: setting latency timer = %i", __func__, l); 1143 1144 rv = usb_control_msg(udev, 1145 usb_sndctrlpipe(udev, 0), 1146 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1147 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1148 l, priv->interface, 1149 buf, 0, WDR_TIMEOUT); 1150 1151 if (rv < 0) 1152 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv); 1153 return rv; 1154 } 1155 1156 static int read_latency_timer(struct usb_serial_port *port) 1157 { 1158 struct ftdi_private *priv = usb_get_serial_port_data(port); 1159 struct usb_device *udev = port->serial->dev; 1160 unsigned short latency = 0; 1161 int rv = 0; 1162 1163 1164 dbg("%s", __func__); 1165 1166 rv = usb_control_msg(udev, 1167 usb_rcvctrlpipe(udev, 0), 1168 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1169 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1170 0, priv->interface, 1171 (char *) &latency, 1, WDR_TIMEOUT); 1172 1173 if (rv < 0) { 1174 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv); 1175 return -EIO; 1176 } 1177 return latency; 1178 } 1179 1180 static int get_serial_info(struct usb_serial_port *port, 1181 struct serial_struct __user *retinfo) 1182 { 1183 struct ftdi_private *priv = usb_get_serial_port_data(port); 1184 struct serial_struct tmp; 1185 1186 if (!retinfo) 1187 return -EFAULT; 1188 memset(&tmp, 0, sizeof(tmp)); 1189 tmp.flags = priv->flags; 1190 tmp.baud_base = priv->baud_base; 1191 tmp.custom_divisor = priv->custom_divisor; 1192 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1193 return -EFAULT; 1194 return 0; 1195 } /* get_serial_info */ 1196 1197 1198 static int set_serial_info(struct tty_struct *tty, 1199 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1200 { /* set_serial_info */ 1201 struct ftdi_private *priv = usb_get_serial_port_data(port); 1202 struct serial_struct new_serial; 1203 struct ftdi_private old_priv; 1204 1205 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1206 return -EFAULT; 1207 1208 lock_kernel(); 1209 old_priv = *priv; 1210 1211 /* Do error checking and permission checking */ 1212 1213 if (!capable(CAP_SYS_ADMIN)) { 1214 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1215 (priv->flags & ~ASYNC_USR_MASK))) { 1216 unlock_kernel(); 1217 return -EPERM; 1218 } 1219 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1220 (new_serial.flags & ASYNC_USR_MASK)); 1221 priv->custom_divisor = new_serial.custom_divisor; 1222 goto check_and_exit; 1223 } 1224 1225 if ((new_serial.baud_base != priv->baud_base) && 1226 (new_serial.baud_base < 9600)) { 1227 unlock_kernel(); 1228 return -EINVAL; 1229 } 1230 1231 /* Make the changes - these are privileged changes! */ 1232 1233 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1234 (new_serial.flags & ASYNC_FLAGS)); 1235 priv->custom_divisor = new_serial.custom_divisor; 1236 1237 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1238 write_latency_timer(port); 1239 1240 check_and_exit: 1241 if ((old_priv.flags & ASYNC_SPD_MASK) != 1242 (priv->flags & ASYNC_SPD_MASK)) { 1243 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1244 tty->alt_speed = 57600; 1245 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1246 tty->alt_speed = 115200; 1247 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1248 tty->alt_speed = 230400; 1249 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1250 tty->alt_speed = 460800; 1251 else 1252 tty->alt_speed = 0; 1253 } 1254 if (((old_priv.flags & ASYNC_SPD_MASK) != 1255 (priv->flags & ASYNC_SPD_MASK)) || 1256 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1257 (old_priv.custom_divisor != priv->custom_divisor))) { 1258 unlock_kernel(); 1259 change_speed(tty, port); 1260 } 1261 else 1262 unlock_kernel(); 1263 return 0; 1264 1265 } /* set_serial_info */ 1266 1267 1268 /* Determine type of FTDI chip based on USB config and descriptor. */ 1269 static void ftdi_determine_type(struct usb_serial_port *port) 1270 { 1271 struct ftdi_private *priv = usb_get_serial_port_data(port); 1272 struct usb_serial *serial = port->serial; 1273 struct usb_device *udev = serial->dev; 1274 unsigned version; 1275 unsigned interfaces; 1276 1277 /* Assume it is not the original SIO device for now. */ 1278 priv->baud_base = 48000000 / 2; 1279 priv->write_offset = 0; 1280 1281 version = le16_to_cpu(udev->descriptor.bcdDevice); 1282 interfaces = udev->actconfig->desc.bNumInterfaces; 1283 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1284 version, interfaces); 1285 if (interfaces > 1) { 1286 int inter; 1287 1288 /* Multiple interfaces.*/ 1289 if (version == 0x0800) { 1290 priv->chip_type = FT4232H; 1291 /* Hi-speed - baud clock runs at 120MHz */ 1292 priv->baud_base = 120000000 / 2; 1293 } else if (version == 0x0700) { 1294 priv->chip_type = FT2232H; 1295 /* Hi-speed - baud clock runs at 120MHz */ 1296 priv->baud_base = 120000000 / 2; 1297 } else 1298 priv->chip_type = FT2232C; 1299 1300 /* Determine interface code. */ 1301 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1302 if (inter == 0) { 1303 priv->interface = INTERFACE_A; 1304 } else if (inter == 1) { 1305 priv->interface = INTERFACE_B; 1306 } else if (inter == 2) { 1307 priv->interface = INTERFACE_C; 1308 } else if (inter == 3) { 1309 priv->interface = INTERFACE_D; 1310 } 1311 /* BM-type devices have a bug where bcdDevice gets set 1312 * to 0x200 when iSerialNumber is 0. */ 1313 if (version < 0x500) { 1314 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1315 __func__); 1316 } 1317 } else if (version < 0x200) { 1318 /* Old device. Assume its the original SIO. */ 1319 priv->chip_type = SIO; 1320 priv->baud_base = 12000000 / 16; 1321 priv->write_offset = 1; 1322 } else if (version < 0x400) { 1323 /* Assume its an FT8U232AM (or FT8U245AM) */ 1324 /* (It might be a BM because of the iSerialNumber bug, 1325 * but it will still work as an AM device.) */ 1326 priv->chip_type = FT8U232AM; 1327 } else if (version < 0x600) { 1328 /* Assume its an FT232BM (or FT245BM) */ 1329 priv->chip_type = FT232BM; 1330 } else { 1331 /* Assume its an FT232R */ 1332 priv->chip_type = FT232RL; 1333 } 1334 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); 1335 } 1336 1337 1338 /* Determine the maximum packet size for the device. This depends on the chip 1339 * type and the USB host capabilities. The value should be obtained from the 1340 * device descriptor as the chip will use the appropriate values for the host.*/ 1341 static void ftdi_set_max_packet_size(struct usb_serial_port *port) 1342 { 1343 struct ftdi_private *priv = usb_get_serial_port_data(port); 1344 struct usb_serial *serial = port->serial; 1345 struct usb_device *udev = serial->dev; 1346 1347 struct usb_interface *interface = serial->interface; 1348 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc; 1349 1350 unsigned num_endpoints; 1351 int i = 0; 1352 1353 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; 1354 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints); 1355 1356 /* NOTE: some customers have programmed FT232R/FT245R devices 1357 * with an endpoint size of 0 - not good. In this case, we 1358 * want to override the endpoint descriptor setting and use a 1359 * value of 64 for wMaxPacketSize */ 1360 for (i = 0; i < num_endpoints; i++) { 1361 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1, 1362 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize); 1363 ep_desc = &interface->cur_altsetting->endpoint[i].desc; 1364 if (ep_desc->wMaxPacketSize == 0) { 1365 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1366 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i); 1367 } 1368 } 1369 1370 /* set max packet size based on descriptor */ 1371 priv->max_packet_size = ep_desc->wMaxPacketSize; 1372 1373 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size); 1374 } 1375 1376 1377 /* 1378 * *************************************************************************** 1379 * Sysfs Attribute 1380 * *************************************************************************** 1381 */ 1382 1383 static ssize_t show_latency_timer(struct device *dev, 1384 struct device_attribute *attr, char *buf) 1385 { 1386 struct usb_serial_port *port = to_usb_serial_port(dev); 1387 struct ftdi_private *priv = usb_get_serial_port_data(port); 1388 if (priv->flags & ASYNC_LOW_LATENCY) 1389 return sprintf(buf, "1\n"); 1390 else 1391 return sprintf(buf, "%i\n", priv->latency); 1392 } 1393 1394 1395 /* Write a new value of the latency timer, in units of milliseconds. */ 1396 static ssize_t store_latency_timer(struct device *dev, 1397 struct device_attribute *attr, const char *valbuf, 1398 size_t count) 1399 { 1400 struct usb_serial_port *port = to_usb_serial_port(dev); 1401 struct ftdi_private *priv = usb_get_serial_port_data(port); 1402 int v = simple_strtoul(valbuf, NULL, 10); 1403 int rv = 0; 1404 1405 priv->latency = v; 1406 rv = write_latency_timer(port); 1407 if (rv < 0) 1408 return -EIO; 1409 return count; 1410 } 1411 1412 /* Write an event character directly to the FTDI register. The ASCII 1413 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1414 static ssize_t store_event_char(struct device *dev, 1415 struct device_attribute *attr, const char *valbuf, size_t count) 1416 { 1417 struct usb_serial_port *port = to_usb_serial_port(dev); 1418 struct ftdi_private *priv = usb_get_serial_port_data(port); 1419 struct usb_device *udev = port->serial->dev; 1420 char buf[1]; 1421 int v = simple_strtoul(valbuf, NULL, 10); 1422 int rv = 0; 1423 1424 dbg("%s: setting event char = %i", __func__, v); 1425 1426 rv = usb_control_msg(udev, 1427 usb_sndctrlpipe(udev, 0), 1428 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1429 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1430 v, priv->interface, 1431 buf, 0, WDR_TIMEOUT); 1432 1433 if (rv < 0) { 1434 dbg("Unable to write event character: %i", rv); 1435 return -EIO; 1436 } 1437 1438 return count; 1439 } 1440 1441 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1442 store_latency_timer); 1443 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1444 1445 static int create_sysfs_attrs(struct usb_serial_port *port) 1446 { 1447 struct ftdi_private *priv = usb_get_serial_port_data(port); 1448 int retval = 0; 1449 1450 dbg("%s", __func__); 1451 1452 /* XXX I've no idea if the original SIO supports the event_char 1453 * sysfs parameter, so I'm playing it safe. */ 1454 if (priv->chip_type != SIO) { 1455 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1456 retval = device_create_file(&port->dev, &dev_attr_event_char); 1457 if ((!retval) && 1458 (priv->chip_type == FT232BM || 1459 priv->chip_type == FT2232C || 1460 priv->chip_type == FT232RL || 1461 priv->chip_type == FT2232H || 1462 priv->chip_type == FT4232H)) { 1463 retval = device_create_file(&port->dev, 1464 &dev_attr_latency_timer); 1465 } 1466 } 1467 return retval; 1468 } 1469 1470 static void remove_sysfs_attrs(struct usb_serial_port *port) 1471 { 1472 struct ftdi_private *priv = usb_get_serial_port_data(port); 1473 1474 dbg("%s", __func__); 1475 1476 /* XXX see create_sysfs_attrs */ 1477 if (priv->chip_type != SIO) { 1478 device_remove_file(&port->dev, &dev_attr_event_char); 1479 if (priv->chip_type == FT232BM || 1480 priv->chip_type == FT2232C || 1481 priv->chip_type == FT232RL || 1482 priv->chip_type == FT2232H || 1483 priv->chip_type == FT4232H) { 1484 device_remove_file(&port->dev, &dev_attr_latency_timer); 1485 } 1486 } 1487 1488 } 1489 1490 /* 1491 * *************************************************************************** 1492 * FTDI driver specific functions 1493 * *************************************************************************** 1494 */ 1495 1496 /* Probe function to check for special devices */ 1497 static int ftdi_sio_probe(struct usb_serial *serial, 1498 const struct usb_device_id *id) 1499 { 1500 struct ftdi_sio_quirk *quirk = 1501 (struct ftdi_sio_quirk *)id->driver_info; 1502 1503 if (quirk && quirk->probe) { 1504 int ret = quirk->probe(serial); 1505 if (ret != 0) 1506 return ret; 1507 } 1508 1509 usb_set_serial_data(serial, (void *)id->driver_info); 1510 1511 return 0; 1512 } 1513 1514 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1515 { 1516 struct ftdi_private *priv; 1517 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1518 1519 1520 dbg("%s", __func__); 1521 1522 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1523 if (!priv) { 1524 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, 1525 sizeof(struct ftdi_private)); 1526 return -ENOMEM; 1527 } 1528 1529 kref_init(&priv->kref); 1530 spin_lock_init(&priv->rx_lock); 1531 spin_lock_init(&priv->tx_lock); 1532 init_waitqueue_head(&priv->delta_msr_wait); 1533 /* This will push the characters through immediately rather 1534 than queue a task to deliver them */ 1535 priv->flags = ASYNC_LOW_LATENCY; 1536 1537 if (quirk && quirk->port_probe) 1538 quirk->port_probe(priv); 1539 1540 /* Increase the size of read buffers */ 1541 kfree(port->bulk_in_buffer); 1542 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1543 if (!port->bulk_in_buffer) { 1544 kfree(priv); 1545 return -ENOMEM; 1546 } 1547 if (port->read_urb) { 1548 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1549 port->read_urb->transfer_buffer_length = BUFSZ; 1550 } 1551 1552 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1553 priv->port = port; 1554 1555 /* Free port's existing write urb and transfer buffer. */ 1556 if (port->write_urb) { 1557 usb_free_urb(port->write_urb); 1558 port->write_urb = NULL; 1559 } 1560 kfree(port->bulk_out_buffer); 1561 port->bulk_out_buffer = NULL; 1562 1563 usb_set_serial_port_data(port, priv); 1564 1565 ftdi_determine_type(port); 1566 ftdi_set_max_packet_size(port); 1567 read_latency_timer(port); 1568 create_sysfs_attrs(port); 1569 return 0; 1570 } 1571 1572 /* Setup for the USB-UIRT device, which requires hardwired 1573 * baudrate (38400 gets mapped to 312500) */ 1574 /* Called from usbserial:serial_probe */ 1575 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1576 { 1577 dbg("%s", __func__); 1578 1579 priv->flags |= ASYNC_SPD_CUST; 1580 priv->custom_divisor = 77; 1581 priv->force_baud = 38400; 1582 } /* ftdi_USB_UIRT_setup */ 1583 1584 /* Setup for the HE-TIRA1 device, which requires hardwired 1585 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1586 1587 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1588 { 1589 dbg("%s", __func__); 1590 1591 priv->flags |= ASYNC_SPD_CUST; 1592 priv->custom_divisor = 240; 1593 priv->force_baud = 38400; 1594 priv->force_rtscts = 1; 1595 } /* ftdi_HE_TIRA1_setup */ 1596 1597 /* 1598 * Module parameter to control latency timer for NDI FTDI-based USB devices. 1599 * If this value is not set in modprobe.conf.local its value will be set to 1ms. 1600 */ 1601 static int ndi_latency_timer = 1; 1602 1603 /* Setup for the NDI FTDI-based USB devices, which requires hardwired 1604 * baudrate (19200 gets mapped to 1200000). 1605 * 1606 * Called from usbserial:serial_probe. 1607 */ 1608 static int ftdi_NDI_device_setup(struct usb_serial *serial) 1609 { 1610 struct usb_device *udev = serial->dev; 1611 int latency = ndi_latency_timer; 1612 int rv = 0; 1613 char buf[1]; 1614 1615 if (latency == 0) 1616 latency = 1; 1617 if (latency > 99) 1618 latency = 99; 1619 1620 dbg("%s setting NDI device latency to %d", __func__, latency); 1621 dev_info(&udev->dev, "NDI device with a latency value of %d", latency); 1622 1623 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 1624 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1625 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1626 latency, 0, buf, 0, WDR_TIMEOUT); 1627 return 0; 1628 } 1629 1630 /* 1631 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1632 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1633 * userspace using openocd. 1634 */ 1635 static int ftdi_jtag_probe(struct usb_serial *serial) 1636 { 1637 struct usb_device *udev = serial->dev; 1638 struct usb_interface *interface = serial->interface; 1639 1640 dbg("%s", __func__); 1641 1642 if (interface == udev->actconfig->interface[0]) { 1643 dev_info(&udev->dev, 1644 "Ignoring serial port reserved for JTAG\n"); 1645 return -ENODEV; 1646 } 1647 1648 return 0; 1649 } 1650 1651 /* 1652 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1653 * We have to correct it if we want to read from it. 1654 */ 1655 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1656 { 1657 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1658 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1659 1660 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1661 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1662 dev_info(&serial->dev->dev, 1663 "Fixing invalid wMaxPacketSize on read pipe\n"); 1664 } 1665 1666 return 0; 1667 } 1668 1669 static void ftdi_sio_priv_release(struct kref *k) 1670 { 1671 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); 1672 1673 kfree(priv); 1674 } 1675 1676 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1677 { 1678 struct ftdi_private *priv = usb_get_serial_port_data(port); 1679 1680 dbg("%s", __func__); 1681 1682 remove_sysfs_attrs(port); 1683 1684 kref_put(&priv->kref, ftdi_sio_priv_release); 1685 1686 return 0; 1687 } 1688 1689 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) 1690 { /* ftdi_open */ 1691 struct usb_device *dev = port->serial->dev; 1692 struct ftdi_private *priv = usb_get_serial_port_data(port); 1693 unsigned long flags; 1694 1695 int result = 0; 1696 char buf[1]; /* Needed for the usb_control_msg I think */ 1697 1698 dbg("%s", __func__); 1699 1700 spin_lock_irqsave(&priv->tx_lock, flags); 1701 priv->tx_bytes = 0; 1702 spin_unlock_irqrestore(&priv->tx_lock, flags); 1703 spin_lock_irqsave(&priv->rx_lock, flags); 1704 priv->rx_bytes = 0; 1705 spin_unlock_irqrestore(&priv->rx_lock, flags); 1706 1707 if (tty) 1708 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1709 1710 write_latency_timer(port); 1711 1712 /* No error checking for this (will get errors later anyway) */ 1713 /* See ftdi_sio.h for description of what is reset */ 1714 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1715 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1716 FTDI_SIO_RESET_SIO, 1717 priv->interface, buf, 0, WDR_TIMEOUT); 1718 1719 /* Termios defaults are set by usb_serial_init. We don't change 1720 port->tty->termios - this would lose speed settings, etc. 1721 This is same behaviour as serial.c/rs_open() - Kuba */ 1722 1723 /* ftdi_set_termios will send usb control messages */ 1724 if (tty) 1725 ftdi_set_termios(tty, port, tty->termios); 1726 1727 /* Not throttled */ 1728 spin_lock_irqsave(&priv->rx_lock, flags); 1729 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1730 spin_unlock_irqrestore(&priv->rx_lock, flags); 1731 1732 /* Start reading from the device */ 1733 priv->rx_processed = 0; 1734 usb_fill_bulk_urb(port->read_urb, dev, 1735 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1736 port->read_urb->transfer_buffer, 1737 port->read_urb->transfer_buffer_length, 1738 ftdi_read_bulk_callback, port); 1739 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1740 if (result) 1741 dev_err(&port->dev, 1742 "%s - failed submitting read urb, error %d\n", 1743 __func__, result); 1744 else 1745 kref_get(&priv->kref); 1746 1747 return result; 1748 } /* ftdi_open */ 1749 1750 1751 static void ftdi_dtr_rts(struct usb_serial_port *port, int on) 1752 { 1753 struct ftdi_private *priv = usb_get_serial_port_data(port); 1754 char buf[1]; 1755 1756 mutex_lock(&port->serial->disc_mutex); 1757 if (!port->serial->disconnected) { 1758 /* Disable flow control */ 1759 if (!on && usb_control_msg(port->serial->dev, 1760 usb_sndctrlpipe(port->serial->dev, 0), 1761 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1762 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1763 0, priv->interface, buf, 0, 1764 WDR_TIMEOUT) < 0) { 1765 dev_err(&port->dev, "error from flowcontrol urb\n"); 1766 } 1767 /* drop RTS and DTR */ 1768 if (on) 1769 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1770 else 1771 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1772 } 1773 mutex_unlock(&port->serial->disc_mutex); 1774 } 1775 1776 /* 1777 * usbserial:__serial_close only calls ftdi_close if the point is open 1778 * 1779 * This only gets called when it is the last close 1780 * 1781 * 1782 */ 1783 1784 static void ftdi_close(struct usb_serial_port *port) 1785 { /* ftdi_close */ 1786 struct ftdi_private *priv = usb_get_serial_port_data(port); 1787 1788 dbg("%s", __func__); 1789 1790 1791 /* cancel any scheduled reading */ 1792 cancel_delayed_work_sync(&priv->rx_work); 1793 1794 /* shutdown our bulk read */ 1795 usb_kill_urb(port->read_urb); 1796 kref_put(&priv->kref, ftdi_sio_priv_release); 1797 } /* ftdi_close */ 1798 1799 1800 1801 /* The SIO requires the first byte to have: 1802 * B0 1 1803 * B1 0 1804 * B2..7 length of message excluding byte 0 1805 * 1806 * The new devices do not require this byte 1807 */ 1808 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1809 const unsigned char *buf, int count) 1810 { /* ftdi_write */ 1811 struct ftdi_private *priv = usb_get_serial_port_data(port); 1812 struct urb *urb; 1813 unsigned char *buffer; 1814 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1815 int status; 1816 int transfer_size; 1817 unsigned long flags; 1818 1819 dbg("%s port %d, %d bytes", __func__, port->number, count); 1820 1821 if (count == 0) { 1822 dbg("write request of 0 bytes"); 1823 return 0; 1824 } 1825 spin_lock_irqsave(&priv->tx_lock, flags); 1826 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1827 spin_unlock_irqrestore(&priv->tx_lock, flags); 1828 dbg("%s - write limit hit\n", __func__); 1829 return 0; 1830 } 1831 priv->tx_outstanding_urbs++; 1832 spin_unlock_irqrestore(&priv->tx_lock, flags); 1833 1834 data_offset = priv->write_offset; 1835 dbg("data_offset set to %d", data_offset); 1836 1837 /* Determine total transfer size */ 1838 transfer_size = count; 1839 if (data_offset > 0) { 1840 /* Original sio needs control bytes too... */ 1841 transfer_size += (data_offset * 1842 ((count + (priv->max_packet_size - 1 - data_offset)) / 1843 (priv->max_packet_size - data_offset))); 1844 } 1845 1846 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1847 if (!buffer) { 1848 dev_err(&port->dev, 1849 "%s ran out of kernel memory for urb ...\n", __func__); 1850 count = -ENOMEM; 1851 goto error_no_buffer; 1852 } 1853 1854 urb = usb_alloc_urb(0, GFP_ATOMIC); 1855 if (!urb) { 1856 dev_err(&port->dev, "%s - no more free urbs\n", __func__); 1857 count = -ENOMEM; 1858 goto error_no_urb; 1859 } 1860 1861 /* Copy data */ 1862 if (data_offset > 0) { 1863 /* Original sio requires control byte at start of 1864 each packet. */ 1865 int user_pktsz = priv->max_packet_size - data_offset; 1866 int todo = count; 1867 unsigned char *first_byte = buffer; 1868 const unsigned char *current_position = buf; 1869 1870 while (todo > 0) { 1871 if (user_pktsz > todo) 1872 user_pktsz = todo; 1873 /* Write the control byte at the front of the packet*/ 1874 *first_byte = 1 | ((user_pktsz) << 2); 1875 /* Copy data for packet */ 1876 memcpy(first_byte + data_offset, 1877 current_position, user_pktsz); 1878 first_byte += user_pktsz + data_offset; 1879 current_position += user_pktsz; 1880 todo -= user_pktsz; 1881 } 1882 } else { 1883 /* No control byte required. */ 1884 /* Copy in the data to send */ 1885 memcpy(buffer, buf, count); 1886 } 1887 1888 usb_serial_debug_data(debug, &port->dev, __func__, 1889 transfer_size, buffer); 1890 1891 /* fill the buffer and send it */ 1892 usb_fill_bulk_urb(urb, port->serial->dev, 1893 usb_sndbulkpipe(port->serial->dev, 1894 port->bulk_out_endpointAddress), 1895 buffer, transfer_size, 1896 ftdi_write_bulk_callback, port); 1897 1898 status = usb_submit_urb(urb, GFP_ATOMIC); 1899 if (status) { 1900 dev_err(&port->dev, 1901 "%s - failed submitting write urb, error %d\n", 1902 __func__, status); 1903 count = status; 1904 goto error; 1905 } else { 1906 spin_lock_irqsave(&priv->tx_lock, flags); 1907 priv->tx_outstanding_bytes += count; 1908 priv->tx_bytes += count; 1909 spin_unlock_irqrestore(&priv->tx_lock, flags); 1910 } 1911 1912 /* we are done with this urb, so let the host driver 1913 * really free it when it is finished with it */ 1914 usb_free_urb(urb); 1915 1916 dbg("%s write returning: %d", __func__, count); 1917 return count; 1918 error: 1919 usb_free_urb(urb); 1920 error_no_urb: 1921 kfree(buffer); 1922 error_no_buffer: 1923 spin_lock_irqsave(&priv->tx_lock, flags); 1924 priv->tx_outstanding_urbs--; 1925 spin_unlock_irqrestore(&priv->tx_lock, flags); 1926 return count; 1927 } /* ftdi_write */ 1928 1929 1930 /* This function may get called when the device is closed */ 1931 1932 static void ftdi_write_bulk_callback(struct urb *urb) 1933 { 1934 unsigned long flags; 1935 struct usb_serial_port *port = urb->context; 1936 struct ftdi_private *priv; 1937 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1938 unsigned long countback; 1939 int status = urb->status; 1940 1941 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1942 kfree(urb->transfer_buffer); 1943 1944 dbg("%s - port %d", __func__, port->number); 1945 1946 priv = usb_get_serial_port_data(port); 1947 if (!priv) { 1948 dbg("%s - bad port private data pointer - exiting", __func__); 1949 return; 1950 } 1951 /* account for transferred data */ 1952 countback = urb->actual_length; 1953 data_offset = priv->write_offset; 1954 if (data_offset > 0) { 1955 /* Subtract the control bytes */ 1956 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size)); 1957 } 1958 spin_lock_irqsave(&priv->tx_lock, flags); 1959 --priv->tx_outstanding_urbs; 1960 priv->tx_outstanding_bytes -= countback; 1961 spin_unlock_irqrestore(&priv->tx_lock, flags); 1962 1963 if (status) { 1964 dbg("nonzero write bulk status received: %d", status); 1965 return; 1966 } 1967 1968 usb_serial_port_softint(port); 1969 } /* ftdi_write_bulk_callback */ 1970 1971 1972 static int ftdi_write_room(struct tty_struct *tty) 1973 { 1974 struct usb_serial_port *port = tty->driver_data; 1975 struct ftdi_private *priv = usb_get_serial_port_data(port); 1976 int room; 1977 unsigned long flags; 1978 1979 dbg("%s - port %d", __func__, port->number); 1980 1981 spin_lock_irqsave(&priv->tx_lock, flags); 1982 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1983 /* 1984 * We really can take anything the user throws at us 1985 * but let's pick a nice big number to tell the tty 1986 * layer that we have lots of free space 1987 */ 1988 room = 2048; 1989 } else { 1990 room = 0; 1991 } 1992 spin_unlock_irqrestore(&priv->tx_lock, flags); 1993 return room; 1994 } 1995 1996 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1997 { 1998 struct usb_serial_port *port = tty->driver_data; 1999 struct ftdi_private *priv = usb_get_serial_port_data(port); 2000 int buffered; 2001 unsigned long flags; 2002 2003 dbg("%s - port %d", __func__, port->number); 2004 2005 spin_lock_irqsave(&priv->tx_lock, flags); 2006 buffered = (int)priv->tx_outstanding_bytes; 2007 spin_unlock_irqrestore(&priv->tx_lock, flags); 2008 if (buffered < 0) { 2009 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", 2010 __func__); 2011 buffered = 0; 2012 } 2013 return buffered; 2014 } 2015 2016 static void ftdi_read_bulk_callback(struct urb *urb) 2017 { 2018 struct usb_serial_port *port = urb->context; 2019 struct tty_struct *tty; 2020 struct ftdi_private *priv; 2021 unsigned long countread; 2022 unsigned long flags; 2023 int status = urb->status; 2024 2025 if (urb->number_of_packets > 0) { 2026 dev_err(&port->dev, "%s transfer_buffer_length %d " 2027 "actual_length %d number of packets %d\n", __func__, 2028 urb->transfer_buffer_length, 2029 urb->actual_length, urb->number_of_packets); 2030 dev_err(&port->dev, "%s transfer_flags %x\n", __func__, 2031 urb->transfer_flags); 2032 } 2033 2034 dbg("%s - port %d", __func__, port->number); 2035 2036 if (port->port.count <= 0) 2037 return; 2038 2039 tty = tty_port_tty_get(&port->port); 2040 if (!tty) { 2041 dbg("%s - bad tty pointer - exiting", __func__); 2042 return; 2043 } 2044 2045 priv = usb_get_serial_port_data(port); 2046 if (!priv) { 2047 dbg("%s - bad port private data pointer - exiting", __func__); 2048 goto out; 2049 } 2050 2051 if (urb != port->read_urb) 2052 dev_err(&port->dev, "%s - Not my urb!\n", __func__); 2053 2054 if (status) { 2055 /* This will happen at close every time so it is a dbg not an 2056 err */ 2057 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 2058 goto out; 2059 } 2060 2061 /* count data bytes, but not status bytes */ 2062 countread = urb->actual_length; 2063 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size); 2064 spin_lock_irqsave(&priv->rx_lock, flags); 2065 priv->rx_bytes += countread; 2066 spin_unlock_irqrestore(&priv->rx_lock, flags); 2067 2068 ftdi_process_read(&priv->rx_work.work); 2069 out: 2070 tty_kref_put(tty); 2071 } /* ftdi_read_bulk_callback */ 2072 2073 2074 static void ftdi_process_read(struct work_struct *work) 2075 { /* ftdi_process_read */ 2076 struct ftdi_private *priv = 2077 container_of(work, struct ftdi_private, rx_work.work); 2078 struct usb_serial_port *port = priv->port; 2079 struct urb *urb; 2080 struct tty_struct *tty; 2081 char error_flag; 2082 unsigned char *data; 2083 2084 int i; 2085 int result; 2086 int need_flip; 2087 int packet_offset; 2088 unsigned long flags; 2089 2090 dbg("%s - port %d", __func__, port->number); 2091 2092 if (port->port.count <= 0) 2093 return; 2094 2095 tty = tty_port_tty_get(&port->port); 2096 if (!tty) { 2097 dbg("%s - bad tty pointer - exiting", __func__); 2098 return; 2099 } 2100 2101 priv = usb_get_serial_port_data(port); 2102 if (!priv) { 2103 dbg("%s - bad port private data pointer - exiting", __func__); 2104 goto out; 2105 } 2106 2107 urb = port->read_urb; 2108 if (!urb) { 2109 dbg("%s - bad read_urb pointer - exiting", __func__); 2110 goto out; 2111 } 2112 2113 data = urb->transfer_buffer; 2114 2115 if (priv->rx_processed) { 2116 dbg("%s - already processed: %d bytes, %d remain", __func__, 2117 priv->rx_processed, 2118 urb->actual_length - priv->rx_processed); 2119 } else { 2120 /* The first two bytes of every read packet are status */ 2121 if (urb->actual_length > 2) 2122 usb_serial_debug_data(debug, &port->dev, __func__, 2123 urb->actual_length, data); 2124 else 2125 dbg("Status only: %03oo %03oo", data[0], data[1]); 2126 } 2127 2128 2129 /* TO DO -- check for hung up line and handle appropriately: */ 2130 /* send hangup */ 2131 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 2132 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 2133 2134 need_flip = 0; 2135 for (packet_offset = priv->rx_processed; 2136 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) { 2137 int length; 2138 2139 /* Compare new line status to the old one, signal if different/ 2140 N.B. packet may be processed more than once, but differences 2141 are only processed once. */ 2142 char new_status = data[packet_offset + 0] & 2143 FTDI_STATUS_B0_MASK; 2144 if (new_status != priv->prev_status) { 2145 priv->diff_status |= 2146 new_status ^ priv->prev_status; 2147 wake_up_interruptible(&priv->delta_msr_wait); 2148 priv->prev_status = new_status; 2149 } 2150 2151 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2; 2152 if (length < 0) { 2153 dev_err(&port->dev, "%s - bad packet length: %d\n", 2154 __func__, length+2); 2155 length = 0; 2156 } 2157 2158 if (priv->rx_flags & THROTTLED) { 2159 dbg("%s - throttled", __func__); 2160 break; 2161 } 2162 if (tty_buffer_request_room(tty, length) < length) { 2163 /* break out & wait for throttling/unthrottling to 2164 happen */ 2165 dbg("%s - receive room low", __func__); 2166 break; 2167 } 2168 2169 /* Handle errors and break */ 2170 error_flag = TTY_NORMAL; 2171 /* Although the device uses a bitmask and hence can have 2172 multiple errors on a packet - the order here sets the 2173 priority the error is returned to the tty layer */ 2174 2175 if (data[packet_offset+1] & FTDI_RS_OE) { 2176 error_flag = TTY_OVERRUN; 2177 dbg("OVERRRUN error"); 2178 } 2179 if (data[packet_offset+1] & FTDI_RS_BI) { 2180 error_flag = TTY_BREAK; 2181 dbg("BREAK received"); 2182 usb_serial_handle_break(port); 2183 } 2184 if (data[packet_offset+1] & FTDI_RS_PE) { 2185 error_flag = TTY_PARITY; 2186 dbg("PARITY error"); 2187 } 2188 if (data[packet_offset+1] & FTDI_RS_FE) { 2189 error_flag = TTY_FRAME; 2190 dbg("FRAMING error"); 2191 } 2192 if (length > 0) { 2193 for (i = 2; i < length+2; i++) { 2194 /* Note that the error flag is duplicated for 2195 every character received since we don't know 2196 which character it applied to */ 2197 if (!usb_serial_handle_sysrq_char(tty, port, 2198 data[packet_offset + i])) 2199 tty_insert_flip_char(tty, 2200 data[packet_offset + i], 2201 error_flag); 2202 } 2203 need_flip = 1; 2204 } 2205 2206 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 2207 /* if a parity error is detected you get status packets forever 2208 until a character is sent without a parity error. 2209 This doesn't work well since the application receives a 2210 never ending stream of bad data - even though new data 2211 hasn't been sent. Therefore I (bill) have taken this out. 2212 However - this might make sense for framing errors and so on 2213 so I am leaving the code in for now. 2214 */ 2215 else { 2216 if (error_flag != TTY_NORMAL) { 2217 dbg("error_flag is not normal"); 2218 /* In this case it is just status - if that is 2219 an error send a bad character */ 2220 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 2221 tty_flip_buffer_push(tty); 2222 tty_insert_flip_char(tty, 0xff, error_flag); 2223 need_flip = 1; 2224 } 2225 } 2226 #endif 2227 } /* "for(packet_offset=0..." */ 2228 2229 /* Low latency */ 2230 if (need_flip) 2231 tty_flip_buffer_push(tty); 2232 2233 if (packet_offset < urb->actual_length) { 2234 /* not completely processed - record progress */ 2235 priv->rx_processed = packet_offset; 2236 dbg("%s - incomplete, %d bytes processed, %d remain", 2237 __func__, packet_offset, 2238 urb->actual_length - packet_offset); 2239 /* check if we were throttled while processing */ 2240 spin_lock_irqsave(&priv->rx_lock, flags); 2241 if (priv->rx_flags & THROTTLED) { 2242 priv->rx_flags |= ACTUALLY_THROTTLED; 2243 spin_unlock_irqrestore(&priv->rx_lock, flags); 2244 dbg("%s - deferring remainder until unthrottled", 2245 __func__); 2246 goto out; 2247 } 2248 spin_unlock_irqrestore(&priv->rx_lock, flags); 2249 /* if the port is closed stop trying to read */ 2250 if (port->port.count > 0) 2251 /* delay processing of remainder */ 2252 schedule_delayed_work(&priv->rx_work, 1); 2253 else 2254 dbg("%s - port is closed", __func__); 2255 goto out; 2256 } 2257 2258 /* urb is completely processed */ 2259 priv->rx_processed = 0; 2260 2261 /* if the port is closed stop trying to read */ 2262 if (port->port.count > 0) { 2263 /* Continue trying to always read */ 2264 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2265 usb_rcvbulkpipe(port->serial->dev, 2266 port->bulk_in_endpointAddress), 2267 port->read_urb->transfer_buffer, 2268 port->read_urb->transfer_buffer_length, 2269 ftdi_read_bulk_callback, port); 2270 2271 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2272 if (result) 2273 dev_err(&port->dev, 2274 "%s - failed resubmitting read urb, error %d\n", 2275 __func__, result); 2276 } 2277 out: 2278 tty_kref_put(tty); 2279 } /* ftdi_process_read */ 2280 2281 2282 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2283 { 2284 struct usb_serial_port *port = tty->driver_data; 2285 struct ftdi_private *priv = usb_get_serial_port_data(port); 2286 __u16 urb_value = 0; 2287 char buf[1]; 2288 2289 /* break_state = -1 to turn on break, and 0 to turn off break */ 2290 /* see drivers/char/tty_io.c to see it used */ 2291 /* last_set_data_urb_value NEVER has the break bit set in it */ 2292 2293 if (break_state) 2294 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2295 else 2296 urb_value = priv->last_set_data_urb_value; 2297 2298 if (usb_control_msg(port->serial->dev, 2299 usb_sndctrlpipe(port->serial->dev, 0), 2300 FTDI_SIO_SET_DATA_REQUEST, 2301 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2302 urb_value , priv->interface, 2303 buf, 0, WDR_TIMEOUT) < 0) { 2304 dev_err(&port->dev, "%s FAILED to enable/disable break state " 2305 "(state was %d)\n", __func__, break_state); 2306 } 2307 2308 dbg("%s break state is %d - urb is %d", __func__, 2309 break_state, urb_value); 2310 2311 } 2312 2313 2314 /* old_termios contains the original termios settings and tty->termios contains 2315 * the new setting to be used 2316 * WARNING: set_termios calls this with old_termios in kernel space 2317 */ 2318 2319 static void ftdi_set_termios(struct tty_struct *tty, 2320 struct usb_serial_port *port, struct ktermios *old_termios) 2321 { /* ftdi_termios */ 2322 struct usb_device *dev = port->serial->dev; 2323 struct ftdi_private *priv = usb_get_serial_port_data(port); 2324 struct ktermios *termios = tty->termios; 2325 unsigned int cflag = termios->c_cflag; 2326 __u16 urb_value; /* will hold the new flags */ 2327 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2328 2329 /* Added for xon/xoff support */ 2330 unsigned int iflag = termios->c_iflag; 2331 unsigned char vstop; 2332 unsigned char vstart; 2333 2334 dbg("%s", __func__); 2335 2336 /* Force baud rate if this device requires it, unless it is set to 2337 B0. */ 2338 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2339 dbg("%s: forcing baud rate for this device", __func__); 2340 tty_encode_baud_rate(tty, priv->force_baud, 2341 priv->force_baud); 2342 } 2343 2344 /* Force RTS-CTS if this device requires it. */ 2345 if (priv->force_rtscts) { 2346 dbg("%s: forcing rtscts for this device", __func__); 2347 termios->c_cflag |= CRTSCTS; 2348 } 2349 2350 cflag = termios->c_cflag; 2351 2352 /* FIXME -For this cut I don't care if the line is really changing or 2353 not - so just do the change regardless - should be able to 2354 compare old_termios and tty->termios */ 2355 /* NOTE These routines can get interrupted by 2356 ftdi_sio_read_bulk_callback - need to examine what this means - 2357 don't see any problems yet */ 2358 2359 /* Set number of data bits, parity, stop bits */ 2360 2361 termios->c_cflag &= ~CMSPAR; 2362 2363 urb_value = 0; 2364 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2365 FTDI_SIO_SET_DATA_STOP_BITS_1); 2366 urb_value |= (cflag & PARENB ? 2367 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2368 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2369 FTDI_SIO_SET_DATA_PARITY_NONE); 2370 if (cflag & CSIZE) { 2371 switch (cflag & CSIZE) { 2372 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2373 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2374 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2375 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2376 default: 2377 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); 2378 } 2379 } 2380 2381 /* This is needed by the break command since it uses the same command 2382 - but is or'ed with this value */ 2383 priv->last_set_data_urb_value = urb_value; 2384 2385 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2386 FTDI_SIO_SET_DATA_REQUEST, 2387 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2388 urb_value , priv->interface, 2389 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2390 dev_err(&port->dev, "%s FAILED to set " 2391 "databits/stopbits/parity\n", __func__); 2392 } 2393 2394 /* Now do the baudrate */ 2395 if ((cflag & CBAUD) == B0) { 2396 /* Disable flow control */ 2397 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2398 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2399 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2400 0, priv->interface, 2401 buf, 0, WDR_TIMEOUT) < 0) { 2402 dev_err(&port->dev, 2403 "%s error from disable flowcontrol urb\n", 2404 __func__); 2405 } 2406 /* Drop RTS and DTR */ 2407 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2408 } else { 2409 /* set the baudrate determined before */ 2410 if (change_speed(tty, port)) 2411 dev_err(&port->dev, "%s urb failed to set baudrate\n", 2412 __func__); 2413 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2414 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2415 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2416 } 2417 2418 /* Set flow control */ 2419 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2420 if (cflag & CRTSCTS) { 2421 dbg("%s Setting to CRTSCTS flow control", __func__); 2422 if (usb_control_msg(dev, 2423 usb_sndctrlpipe(dev, 0), 2424 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2425 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2426 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2427 buf, 0, WDR_TIMEOUT) < 0) { 2428 dev_err(&port->dev, 2429 "urb failed to set to rts/cts flow control\n"); 2430 } 2431 2432 } else { 2433 /* 2434 * Xon/Xoff code 2435 * 2436 * Check the IXOFF status in the iflag component of the 2437 * termios structure. If IXOFF is not set, the pre-xon/xoff 2438 * code is executed. 2439 */ 2440 if (iflag & IXOFF) { 2441 dbg("%s request to enable xonxoff iflag=%04x", 2442 __func__, iflag); 2443 /* Try to enable the XON/XOFF on the ftdi_sio 2444 * Set the vstart and vstop -- could have been done up 2445 * above where a lot of other dereferencing is done but 2446 * that would be very inefficient as vstart and vstop 2447 * are not always needed. 2448 */ 2449 vstart = termios->c_cc[VSTART]; 2450 vstop = termios->c_cc[VSTOP]; 2451 urb_value = (vstop << 8) | (vstart); 2452 2453 if (usb_control_msg(dev, 2454 usb_sndctrlpipe(dev, 0), 2455 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2456 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2457 urb_value , (FTDI_SIO_XON_XOFF_HS 2458 | priv->interface), 2459 buf, 0, WDR_TIMEOUT) < 0) { 2460 dev_err(&port->dev, "urb failed to set to " 2461 "xon/xoff flow control\n"); 2462 } 2463 } else { 2464 /* else clause to only run if cflag ! CRTSCTS and iflag 2465 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2466 * stack - not by device */ 2467 dbg("%s Turning off hardware flow control", __func__); 2468 if (usb_control_msg(dev, 2469 usb_sndctrlpipe(dev, 0), 2470 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2471 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2472 0, priv->interface, 2473 buf, 0, WDR_TIMEOUT) < 0) { 2474 dev_err(&port->dev, 2475 "urb failed to clear flow control\n"); 2476 } 2477 } 2478 2479 } 2480 return; 2481 } 2482 2483 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2484 { 2485 struct usb_serial_port *port = tty->driver_data; 2486 struct ftdi_private *priv = usb_get_serial_port_data(port); 2487 unsigned char buf[2]; 2488 int ret; 2489 2490 dbg("%s TIOCMGET", __func__); 2491 switch (priv->chip_type) { 2492 case SIO: 2493 /* Request the status from the device */ 2494 ret = usb_control_msg(port->serial->dev, 2495 usb_rcvctrlpipe(port->serial->dev, 0), 2496 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2497 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2498 0, 0, 2499 buf, 1, WDR_TIMEOUT); 2500 if (ret < 0) 2501 return ret; 2502 break; 2503 case FT8U232AM: 2504 case FT232BM: 2505 case FT2232C: 2506 case FT232RL: 2507 case FT2232H: 2508 case FT4232H: 2509 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2510 value) - in the same format as the data returned from the in 2511 point */ 2512 ret = usb_control_msg(port->serial->dev, 2513 usb_rcvctrlpipe(port->serial->dev, 0), 2514 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2515 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2516 0, priv->interface, 2517 buf, 2, WDR_TIMEOUT); 2518 if (ret < 0) 2519 return ret; 2520 break; 2521 default: 2522 return -EFAULT; 2523 } 2524 2525 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2526 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2527 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2528 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2529 priv->last_dtr_rts; 2530 } 2531 2532 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2533 unsigned int set, unsigned int clear) 2534 { 2535 struct usb_serial_port *port = tty->driver_data; 2536 dbg("%s TIOCMSET", __func__); 2537 return update_mctrl(port, set, clear); 2538 } 2539 2540 2541 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2542 unsigned int cmd, unsigned long arg) 2543 { 2544 struct usb_serial_port *port = tty->driver_data; 2545 struct ftdi_private *priv = usb_get_serial_port_data(port); 2546 2547 dbg("%s cmd 0x%04x", __func__, cmd); 2548 2549 /* Based on code from acm.c and others */ 2550 switch (cmd) { 2551 2552 case TIOCGSERIAL: /* gets serial port data */ 2553 return get_serial_info(port, 2554 (struct serial_struct __user *) arg); 2555 2556 case TIOCSSERIAL: /* sets serial port data */ 2557 return set_serial_info(tty, port, 2558 (struct serial_struct __user *) arg); 2559 2560 /* 2561 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2562 * - mask passed in arg for lines of interest 2563 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2564 * Caller should use TIOCGICOUNT to see which one it was. 2565 * 2566 * This code is borrowed from linux/drivers/char/serial.c 2567 */ 2568 case TIOCMIWAIT: 2569 while (priv != NULL) { 2570 interruptible_sleep_on(&priv->delta_msr_wait); 2571 /* see if a signal did it */ 2572 if (signal_pending(current)) 2573 return -ERESTARTSYS; 2574 else { 2575 char diff = priv->diff_status; 2576 2577 if (diff == 0) 2578 return -EIO; /* no change => error */ 2579 2580 /* Consume all events */ 2581 priv->diff_status = 0; 2582 2583 /* Return 0 if caller wanted to know about 2584 these bits */ 2585 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2586 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2587 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2588 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2589 return 0; 2590 } 2591 /* 2592 * Otherwise caller can't care less about what 2593 * happened,and so we continue to wait for more 2594 * events. 2595 */ 2596 } 2597 } 2598 return 0; 2599 default: 2600 break; 2601 } 2602 /* This is not necessarily an error - turns out the higher layers 2603 * will do some ioctls themselves (see comment above) 2604 */ 2605 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2606 return -ENOIOCTLCMD; 2607 } 2608 2609 static void ftdi_throttle(struct tty_struct *tty) 2610 { 2611 struct usb_serial_port *port = tty->driver_data; 2612 struct ftdi_private *priv = usb_get_serial_port_data(port); 2613 unsigned long flags; 2614 2615 dbg("%s - port %d", __func__, port->number); 2616 2617 spin_lock_irqsave(&priv->rx_lock, flags); 2618 priv->rx_flags |= THROTTLED; 2619 spin_unlock_irqrestore(&priv->rx_lock, flags); 2620 } 2621 2622 2623 static void ftdi_unthrottle(struct tty_struct *tty) 2624 { 2625 struct usb_serial_port *port = tty->driver_data; 2626 struct ftdi_private *priv = usb_get_serial_port_data(port); 2627 int actually_throttled; 2628 unsigned long flags; 2629 2630 dbg("%s - port %d", __func__, port->number); 2631 2632 spin_lock_irqsave(&priv->rx_lock, flags); 2633 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2634 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2635 spin_unlock_irqrestore(&priv->rx_lock, flags); 2636 2637 if (actually_throttled) 2638 schedule_delayed_work(&priv->rx_work, 0); 2639 } 2640 2641 static int __init ftdi_init(void) 2642 { 2643 int retval; 2644 2645 dbg("%s", __func__); 2646 if (vendor > 0 && product > 0) { 2647 /* Add user specified VID/PID to reserved element of table. */ 2648 int i; 2649 for (i = 0; id_table_combined[i].idVendor; i++) 2650 ; 2651 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2652 id_table_combined[i].idVendor = vendor; 2653 id_table_combined[i].idProduct = product; 2654 } 2655 retval = usb_serial_register(&ftdi_sio_device); 2656 if (retval) 2657 goto failed_sio_register; 2658 retval = usb_register(&ftdi_driver); 2659 if (retval) 2660 goto failed_usb_register; 2661 2662 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 2663 DRIVER_DESC "\n"); 2664 return 0; 2665 failed_usb_register: 2666 usb_serial_deregister(&ftdi_sio_device); 2667 failed_sio_register: 2668 return retval; 2669 } 2670 2671 2672 static void __exit ftdi_exit(void) 2673 { 2674 2675 dbg("%s", __func__); 2676 2677 usb_deregister(&ftdi_driver); 2678 usb_serial_deregister(&ftdi_sio_device); 2679 2680 } 2681 2682 2683 module_init(ftdi_init); 2684 module_exit(ftdi_exit); 2685 2686 MODULE_AUTHOR(DRIVER_AUTHOR); 2687 MODULE_DESCRIPTION(DRIVER_DESC); 2688 MODULE_LICENSE("GPL"); 2689 2690 module_param(debug, bool, S_IRUGO | S_IWUSR); 2691 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2692 module_param(vendor, ushort, 0); 2693 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2694 __MODULE_STRING(FTDI_VID)")"); 2695 module_param(product, ushort, 0); 2696 MODULE_PARM_DESC(product, "User specified product ID"); 2697 2698 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR); 2699 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override"); 2700