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