1 /* 2 * USB FTDI SIO driver 3 * 4 * Copyright (C) 1999 - 2001 5 * Greg Kroah-Hartman (greg@kroah.com) 6 * Bill Ryder (bryder@sgi.com) 7 * Copyright (C) 2002 8 * Kuba Ober (kuba@mareimbrium.org) 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * See Documentation/usb/usb-serial.txt for more information on using this 16 * driver 17 * 18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info 19 * and extra documentation 20 * 21 * Change entries from 2004 and earlier can be found in versions of this 22 * file in kernel versions prior to the 2.6.24 release. 23 * 24 */ 25 26 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */ 27 /* Thanx to FTDI for so kindly providing details of the protocol required */ 28 /* to talk to the device */ 29 /* Thanx to gkh and the rest of the usb dev group for all code I have 30 assimilated :-) */ 31 32 #include <linux/kernel.h> 33 #include <linux/errno.h> 34 #include <linux/init.h> 35 #include <linux/slab.h> 36 #include <linux/smp_lock.h> 37 #include <linux/tty.h> 38 #include <linux/tty_driver.h> 39 #include <linux/tty_flip.h> 40 #include <linux/module.h> 41 #include <linux/spinlock.h> 42 #include <linux/uaccess.h> 43 #include <linux/usb.h> 44 #include <linux/serial.h> 45 #include <linux/usb/serial.h> 46 #include "ftdi_sio.h" 47 48 /* 49 * Version Information 50 */ 51 #define DRIVER_VERSION "v1.5.0" 52 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>" 53 #define DRIVER_DESC "USB FTDI Serial Converters Driver" 54 55 static int debug; 56 static __u16 vendor = FTDI_VID; 57 static __u16 product; 58 59 struct ftdi_private { 60 struct kref kref; 61 ftdi_chip_type_t chip_type; 62 /* type of device, either SIO or FT8U232AM */ 63 int baud_base; /* baud base clock for divisor setting */ 64 int custom_divisor; /* custom_divisor kludge, this is for 65 baud_base (different from what goes to the 66 chip!) */ 67 __u16 last_set_data_urb_value ; 68 /* the last data state set - needed for doing 69 * a break 70 */ 71 int write_offset; /* This is the offset in the usb data block to 72 * write the serial data - it varies between 73 * devices 74 */ 75 int flags; /* some ASYNC_xxxx flags are supported */ 76 unsigned long last_dtr_rts; /* saved modem control outputs */ 77 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ 78 char prev_status, diff_status; /* Used for TIOCMIWAIT */ 79 __u8 rx_flags; /* receive state flags (throttling) */ 80 spinlock_t rx_lock; /* spinlock for receive state */ 81 struct delayed_work rx_work; 82 struct usb_serial_port *port; 83 int rx_processed; 84 unsigned long rx_bytes; 85 86 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface 87 (0 for FT232/245) */ 88 89 speed_t force_baud; /* if non-zero, force the baud rate to 90 this value */ 91 int force_rtscts; /* if non-zero, force RTS-CTS to always 92 be enabled */ 93 94 unsigned int latency; /* latency setting in use */ 95 spinlock_t tx_lock; /* spinlock for transmit state */ 96 unsigned long tx_bytes; 97 unsigned long tx_outstanding_bytes; 98 unsigned long tx_outstanding_urbs; 99 unsigned short max_packet_size; 100 }; 101 102 /* struct ftdi_sio_quirk is used by devices requiring special attention. */ 103 struct ftdi_sio_quirk { 104 int (*probe)(struct usb_serial *); 105 /* Special settings for probed ports. */ 106 void (*port_probe)(struct ftdi_private *); 107 }; 108 109 static int ftdi_jtag_probe(struct usb_serial *serial); 110 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial); 111 static int ftdi_NDI_device_setup(struct usb_serial *serial); 112 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv); 113 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv); 114 115 static struct ftdi_sio_quirk ftdi_jtag_quirk = { 116 .probe = ftdi_jtag_probe, 117 }; 118 119 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = { 120 .probe = ftdi_mtxorb_hack_setup, 121 }; 122 123 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = { 124 .probe = ftdi_NDI_device_setup, 125 }; 126 127 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = { 128 .port_probe = ftdi_USB_UIRT_setup, 129 }; 130 131 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = { 132 .port_probe = ftdi_HE_TIRA1_setup, 133 }; 134 135 /* 136 * The 8U232AM has the same API as the sio except for: 137 * - it can support MUCH higher baudrates; up to: 138 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz 139 * o 230400 at 12MHz 140 * so .. 8U232AM's baudrate setting codes are different 141 * - it has a two byte status code. 142 * - it returns characters every 16ms (the FTDI does it every 40ms) 143 * 144 * the bcdDevice value is used to differentiate FT232BM and FT245BM from 145 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID 146 * combinations in both tables. 147 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices, 148 * but I don't know if those ever went into mass production. [Ian Abbott] 149 */ 150 151 152 153 static struct usb_device_id id_table_combined [] = { 154 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) }, 155 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) }, 156 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) }, 157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) }, 158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) }, 159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) }, 160 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) }, 161 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) }, 162 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) }, 163 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) }, 164 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) }, 165 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, 166 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, 167 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, 168 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) }, 169 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) }, 170 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) }, 171 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) }, 172 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) }, 173 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) }, 174 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) }, 175 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) }, 176 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) }, 177 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) }, 178 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) }, 179 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) }, 180 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) }, 181 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) }, 182 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) }, 183 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) }, 184 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) }, 185 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) }, 186 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) }, 187 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) }, 188 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) }, 189 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) }, 190 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) }, 191 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) }, 192 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) }, 193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) }, 194 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) }, 195 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) }, 196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) }, 197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) }, 198 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) }, 199 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) }, 200 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) }, 201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) }, 202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) }, 203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) }, 204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) }, 205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) }, 206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) }, 207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) }, 208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) }, 209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) }, 210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) }, 211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) }, 212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) }, 213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) }, 214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) }, 215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) }, 216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) }, 217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) }, 218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) }, 219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) }, 220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) }, 221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) }, 222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) }, 223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) }, 224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) }, 225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) }, 226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) }, 227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) }, 228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) }, 229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) }, 230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) }, 231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) }, 232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) }, 233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) }, 234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) }, 235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) }, 236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) }, 237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) }, 238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) }, 239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) }, 240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID), 241 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) }, 243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) }, 244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) }, 245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) }, 246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID), 247 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) }, 249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) }, 250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) }, 251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) }, 252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) }, 253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) }, 254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) }, 255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) }, 256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) }, 257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) }, 258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) }, 259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) }, 260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) }, 261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) }, 262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) }, 263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) }, 264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) }, 265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) }, 266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) }, 267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) }, 268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) }, 269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) }, 270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) }, 271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) }, 272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) }, 273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) }, 274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) }, 275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) }, 276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) }, 277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) }, 278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) }, 279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) }, 280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) }, 281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) }, 282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) }, 283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) }, 284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) }, 285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) }, 286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID), 287 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID), 289 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID), 291 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID), 293 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID), 295 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID), 297 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) }, 299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) }, 300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) }, 301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) }, 302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) }, 303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) }, 304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) }, 305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) }, 306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) }, 307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) }, 308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) }, 309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) }, 310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) }, 311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) }, 312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) }, 313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) }, 314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) }, 315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) }, 316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) }, 317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) }, 318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) }, 319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) }, 320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) }, 321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) }, 322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) }, 323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) }, 324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) }, 325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) }, 326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) }, 327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) }, 328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) }, 329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) }, 330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) }, 331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) }, 332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) }, 333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) }, 334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) }, 335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) }, 336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) }, 337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) }, 338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) }, 339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) }, 340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) }, 341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) }, 342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) }, 343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) }, 344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) }, 345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) }, 346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) }, 347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) }, 348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) }, 349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) }, 350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) }, 351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) }, 352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) }, 353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) }, 354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) }, 355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) }, 356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) }, 357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) }, 358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) }, 359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) }, 360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) }, 361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) }, 362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) }, 363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) }, 364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) }, 365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) }, 366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) }, 367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) }, 368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) }, 369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) }, 370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) }, 371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) }, 372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) }, 373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) }, 374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) }, 375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) }, 376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) }, 377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) }, 378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) }, 379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) }, 380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) }, 381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) }, 382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) }, 383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) }, 384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) }, 385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) }, 386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) }, 387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) }, 388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) }, 389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) }, 390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) }, 391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) }, 392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) }, 393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) }, 394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) }, 395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) }, 396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) }, 397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) }, 398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) }, 399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) }, 400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) }, 401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) }, 402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) }, 403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) }, 404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) }, 405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) }, 406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) }, 407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) }, 408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) }, 409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) }, 410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) }, 411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) }, 412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) }, 413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) }, 414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) }, 415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) }, 416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) }, 417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) }, 418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) }, 419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) }, 420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) }, 421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) }, 422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) }, 423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) }, 424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) }, 425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) }, 426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) }, 427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) }, 428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) }, 429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) }, 430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) }, 431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) }, 432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) }, 433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) }, 434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) }, 435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) }, 436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) }, 437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) }, 438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) }, 439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) }, 440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) }, 441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) }, 442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) }, 443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) }, 444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) }, 445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) }, 446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) }, 447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) }, 448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) }, 449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) }, 450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) }, 451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) }, 452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) }, 453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) }, 454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) }, 455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) }, 456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) }, 457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) }, 458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) }, 459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) }, 460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) }, 461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) }, 462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) }, 463 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) }, 464 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) }, 465 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) }, 466 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) }, 467 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) }, 468 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) }, 469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) }, 470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) }, 471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) }, 472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) }, 473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) }, 474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) }, 475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) }, 476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) }, 477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) }, 478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) }, 479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) }, 480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) }, 481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) }, 482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) }, 483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) }, 484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) }, 485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) }, 486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) }, 487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) }, 488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) }, 489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) }, 490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) }, 491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) }, 492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) }, 493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) }, 494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) }, 495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) }, 496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) }, 497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) }, 498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) }, 499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) }, 500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) }, 501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) }, 502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) }, 503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) }, 504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) }, 505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) }, 506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) }, 507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) }, 508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) }, 509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) }, 510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) }, 511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) }, 512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) }, 513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) }, 514 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) }, 515 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) }, 516 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) }, 517 { USB_DEVICE(OCT_VID, OCT_US101_PID) }, 518 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID), 519 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk }, 520 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID), 521 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk }, 522 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) }, 523 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) }, 524 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) }, 525 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) }, 526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) }, 527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) }, 528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) }, 529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) }, 530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) }, 531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) }, 532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) }, 533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) }, 534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) }, 535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) }, 536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) }, 537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) }, 538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) }, 539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) }, 540 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) }, 541 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) }, 542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) }, 543 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) }, 544 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) }, 545 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) }, 546 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) }, 547 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) }, 548 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) }, 549 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) }, 550 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) }, 551 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) }, 552 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) }, 553 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) }, 554 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) }, 555 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) }, 556 /* 557 * Due to many user requests for multiple ELV devices we enable 558 * them by default. 559 */ 560 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) }, 561 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) }, 562 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) }, 563 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) }, 564 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) }, 565 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) }, 566 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) }, 567 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) }, 568 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) }, 569 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) }, 570 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) }, 571 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) }, 572 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) }, 573 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) }, 574 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) }, 575 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) }, 576 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) }, 577 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) }, 578 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) }, 579 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) }, 580 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) }, 581 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, 582 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, 583 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) }, 584 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) }, 585 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) }, 586 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) }, 587 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) }, 588 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) }, 589 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) }, 590 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) }, 591 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) }, 592 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) }, 593 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) }, 594 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) }, 595 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) }, 596 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) }, 597 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) }, 598 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) }, 599 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, 600 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, 601 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, 602 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, 603 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, 604 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, 605 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, 606 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, 607 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) }, 608 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) }, 609 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) }, 610 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) }, 611 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) }, 612 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) }, 613 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) }, 614 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) }, 615 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, 616 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, 617 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) }, 618 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) }, 619 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) }, 620 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) }, 621 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) }, 622 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) }, 623 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) }, 624 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) }, 625 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) }, 626 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) }, 627 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, 628 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, 629 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, 630 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, 631 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, 632 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, 633 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) }, 634 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) }, 635 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) }, 636 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) }, 637 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) }, 638 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) }, 639 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) }, 640 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) }, 641 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) }, 642 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) }, 643 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, 644 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, 645 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, 646 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, 647 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, 648 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) }, 649 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) }, 650 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) }, 651 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) }, 652 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) }, 653 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) }, 654 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) }, 655 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) }, 656 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) }, 657 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID), 658 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 659 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID), 660 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 661 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID), 662 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 663 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID), 664 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 665 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID), 666 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, 667 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, 668 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, 669 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) }, 670 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, 671 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, 672 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, 673 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), 674 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 675 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), 676 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 677 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), 678 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 679 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID), 680 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 681 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID), 682 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 683 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID), 684 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 685 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, 686 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, 687 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) }, 688 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) }, 689 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) }, 690 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) }, 691 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) }, 692 { USB_DEVICE(ATMEL_VID, STK541_PID) }, 693 { USB_DEVICE(DE_VID, STB_PID) }, 694 { USB_DEVICE(DE_VID, WHT_PID) }, 695 { USB_DEVICE(ADI_VID, ADI_GNICE_PID), 696 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 697 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) }, 698 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID), 699 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 700 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) }, 701 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) }, 702 { }, /* Optional parameter entry */ 703 { } /* Terminating entry */ 704 }; 705 706 MODULE_DEVICE_TABLE(usb, id_table_combined); 707 708 static struct usb_driver ftdi_driver = { 709 .name = "ftdi_sio", 710 .probe = usb_serial_probe, 711 .disconnect = usb_serial_disconnect, 712 .id_table = id_table_combined, 713 .no_dynamic_id = 1, 714 }; 715 716 static const char *ftdi_chip_name[] = { 717 [SIO] = "SIO", /* the serial part of FT8U100AX */ 718 [FT8U232AM] = "FT8U232AM", 719 [FT232BM] = "FT232BM", 720 [FT2232C] = "FT2232C", 721 [FT232RL] = "FT232RL", 722 [FT2232H] = "FT2232H", 723 [FT4232H] = "FT4232H" 724 }; 725 726 727 /* Constants for read urb and write urb */ 728 #define BUFSZ 512 729 730 /* rx_flags */ 731 #define THROTTLED 0x01 732 #define ACTUALLY_THROTTLED 0x02 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, 748 struct usb_serial_port *port, struct file *filp); 749 static void ftdi_close(struct usb_serial_port *port); 750 static void ftdi_dtr_rts(struct usb_serial_port *port, int on); 751 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 752 const unsigned char *buf, int count); 753 static int ftdi_write_room(struct tty_struct *tty); 754 static int ftdi_chars_in_buffer(struct tty_struct *tty); 755 static void ftdi_write_bulk_callback(struct urb *urb); 756 static void ftdi_read_bulk_callback(struct urb *urb); 757 static void ftdi_process_read(struct work_struct *work); 758 static void ftdi_set_termios(struct tty_struct *tty, 759 struct usb_serial_port *port, struct ktermios *old); 760 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 761 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 762 unsigned int set, unsigned int clear); 763 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 764 unsigned int cmd, unsigned long arg); 765 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 766 static void ftdi_throttle(struct tty_struct *tty); 767 static void ftdi_unthrottle(struct tty_struct *tty); 768 769 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 770 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 771 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 772 static __u32 ftdi_232bm_baud_to_divisor(int baud); 773 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base); 774 static __u32 ftdi_2232h_baud_to_divisor(int baud); 775 776 static struct usb_serial_driver ftdi_sio_device = { 777 .driver = { 778 .owner = THIS_MODULE, 779 .name = "ftdi_sio", 780 }, 781 .description = "FTDI USB Serial Device", 782 .usb_driver = &ftdi_driver , 783 .id_table = id_table_combined, 784 .num_ports = 1, 785 .probe = ftdi_sio_probe, 786 .port_probe = ftdi_sio_port_probe, 787 .port_remove = ftdi_sio_port_remove, 788 .open = ftdi_open, 789 .close = ftdi_close, 790 .dtr_rts = ftdi_dtr_rts, 791 .throttle = ftdi_throttle, 792 .unthrottle = ftdi_unthrottle, 793 .write = ftdi_write, 794 .write_room = ftdi_write_room, 795 .chars_in_buffer = ftdi_chars_in_buffer, 796 .read_bulk_callback = ftdi_read_bulk_callback, 797 .write_bulk_callback = ftdi_write_bulk_callback, 798 .tiocmget = ftdi_tiocmget, 799 .tiocmset = ftdi_tiocmset, 800 .ioctl = ftdi_ioctl, 801 .set_termios = ftdi_set_termios, 802 .break_ctl = ftdi_break_ctl, 803 }; 804 805 806 #define WDR_TIMEOUT 5000 /* default urb timeout */ 807 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 808 809 /* High and low are for DTR, RTS etc etc */ 810 #define HIGH 1 811 #define LOW 0 812 813 /* number of outstanding urbs to prevent userspace DoS from happening */ 814 #define URB_UPPER_LIMIT 42 815 816 /* 817 * *************************************************************************** 818 * Utility functions 819 * *************************************************************************** 820 */ 821 822 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 823 { 824 unsigned short int divisor; 825 /* divisor shifted 3 bits to the left */ 826 int divisor3 = base / 2 / baud; 827 if ((divisor3 & 0x7) == 7) 828 divisor3++; /* round x.7/8 up to x+1 */ 829 divisor = divisor3 >> 3; 830 divisor3 &= 0x7; 831 if (divisor3 == 1) 832 divisor |= 0xc000; 833 else if (divisor3 >= 4) 834 divisor |= 0x4000; 835 else if (divisor3 != 0) 836 divisor |= 0x8000; 837 else if (divisor == 1) 838 divisor = 0; /* special case for maximum baud rate */ 839 return divisor; 840 } 841 842 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 843 { 844 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 845 } 846 847 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 848 { 849 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 850 __u32 divisor; 851 /* divisor shifted 3 bits to the left */ 852 int divisor3 = base / 2 / baud; 853 divisor = divisor3 >> 3; 854 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 855 /* Deal with special cases for highest baud rates. */ 856 if (divisor == 1) 857 divisor = 0; 858 else if (divisor == 0x4001) 859 divisor = 1; 860 return divisor; 861 } 862 863 static __u32 ftdi_232bm_baud_to_divisor(int baud) 864 { 865 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 866 } 867 868 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base) 869 { 870 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 871 __u32 divisor; 872 int divisor3; 873 874 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */ 875 divisor3 = (base / 10 / baud) * 8; 876 877 divisor = divisor3 >> 3; 878 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 879 /* Deal with special cases for highest baud rates. */ 880 if (divisor == 1) 881 divisor = 0; 882 else if (divisor == 0x4001) 883 divisor = 1; 884 /* 885 * Set this bit to turn off a divide by 2.5 on baud rate generator 886 * This enables baud rates up to 12Mbaud but cannot reach below 1200 887 * baud with this bit set 888 */ 889 divisor |= 0x00020000; 890 return divisor; 891 } 892 893 static __u32 ftdi_2232h_baud_to_divisor(int baud) 894 { 895 return ftdi_2232h_baud_base_to_divisor(baud, 120000000); 896 } 897 898 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 899 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 900 901 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 902 unsigned int clear) 903 { 904 struct ftdi_private *priv = usb_get_serial_port_data(port); 905 char *buf; 906 unsigned urb_value; 907 int rv; 908 909 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 910 dbg("%s - DTR|RTS not being set|cleared", __func__); 911 return 0; /* no change */ 912 } 913 914 buf = kmalloc(1, GFP_NOIO); 915 if (!buf) 916 return -ENOMEM; 917 918 clear &= ~set; /* 'set' takes precedence over 'clear' */ 919 urb_value = 0; 920 if (clear & TIOCM_DTR) 921 urb_value |= FTDI_SIO_SET_DTR_LOW; 922 if (clear & TIOCM_RTS) 923 urb_value |= FTDI_SIO_SET_RTS_LOW; 924 if (set & TIOCM_DTR) 925 urb_value |= FTDI_SIO_SET_DTR_HIGH; 926 if (set & TIOCM_RTS) 927 urb_value |= FTDI_SIO_SET_RTS_HIGH; 928 rv = usb_control_msg(port->serial->dev, 929 usb_sndctrlpipe(port->serial->dev, 0), 930 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 931 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 932 urb_value, priv->interface, 933 buf, 0, WDR_TIMEOUT); 934 935 kfree(buf); 936 if (rv < 0) { 937 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 938 __func__, 939 (set & TIOCM_DTR) ? "HIGH" : 940 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 941 (set & TIOCM_RTS) ? "HIGH" : 942 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 943 } else { 944 dbg("%s - DTR %s, RTS %s", __func__, 945 (set & TIOCM_DTR) ? "HIGH" : 946 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 947 (set & TIOCM_RTS) ? "HIGH" : 948 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 949 /* FIXME: locking on last_dtr_rts */ 950 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 951 } 952 return rv; 953 } 954 955 956 static __u32 get_ftdi_divisor(struct tty_struct *tty, 957 struct usb_serial_port *port) 958 { /* get_ftdi_divisor */ 959 struct ftdi_private *priv = usb_get_serial_port_data(port); 960 __u32 div_value = 0; 961 int div_okay = 1; 962 int baud; 963 964 /* 965 * The logic involved in setting the baudrate can be cleanly split into 966 * 3 steps. 967 * 1. Standard baud rates are set in tty->termios->c_cflag 968 * 2. If these are not enough, you can set any speed using alt_speed as 969 * follows: 970 * - set tty->termios->c_cflag speed to B38400 971 * - set your real speed in tty->alt_speed; it gets ignored when 972 * alt_speed==0, (or) 973 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 974 * follows: 975 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 976 * this just sets alt_speed to (HI: 57600, VHI: 115200, 977 * SHI: 230400, WARP: 460800) 978 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 979 * 3. You can also set baud rate by setting custom divisor as follows 980 * - set tty->termios->c_cflag speed to B38400 981 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 982 * follows: 983 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 984 * o custom_divisor set to baud_base / your_new_baudrate 985 * ** Step 3 is done courtesy of code borrowed from serial.c 986 * I should really spend some time and separate + move this common 987 * code to serial.c, it is replicated in nearly every serial driver 988 * you see. 989 */ 990 991 /* 1. Get the baud rate from the tty settings, this observes 992 alt_speed hack */ 993 994 baud = tty_get_baud_rate(tty); 995 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 996 997 /* 2. Observe async-compatible custom_divisor hack, update baudrate 998 if needed */ 999 1000 if (baud == 38400 && 1001 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1002 (priv->custom_divisor)) { 1003 baud = priv->baud_base / priv->custom_divisor; 1004 dbg("%s - custom divisor %d sets baud rate to %d", 1005 __func__, priv->custom_divisor, baud); 1006 } 1007 1008 /* 3. Convert baudrate to device-specific divisor */ 1009 1010 if (!baud) 1011 baud = 9600; 1012 switch (priv->chip_type) { 1013 case SIO: /* SIO chip */ 1014 switch (baud) { 1015 case 300: div_value = ftdi_sio_b300; break; 1016 case 600: div_value = ftdi_sio_b600; break; 1017 case 1200: div_value = ftdi_sio_b1200; break; 1018 case 2400: div_value = ftdi_sio_b2400; break; 1019 case 4800: div_value = ftdi_sio_b4800; break; 1020 case 9600: div_value = ftdi_sio_b9600; break; 1021 case 19200: div_value = ftdi_sio_b19200; break; 1022 case 38400: div_value = ftdi_sio_b38400; break; 1023 case 57600: div_value = ftdi_sio_b57600; break; 1024 case 115200: div_value = ftdi_sio_b115200; break; 1025 } /* baud */ 1026 if (div_value == 0) { 1027 dbg("%s - Baudrate (%d) requested is not supported", 1028 __func__, baud); 1029 div_value = ftdi_sio_b9600; 1030 baud = 9600; 1031 div_okay = 0; 1032 } 1033 break; 1034 case FT8U232AM: /* 8U232AM chip */ 1035 if (baud <= 3000000) { 1036 div_value = ftdi_232am_baud_to_divisor(baud); 1037 } else { 1038 dbg("%s - Baud rate too high!", __func__); 1039 baud = 9600; 1040 div_value = ftdi_232am_baud_to_divisor(9600); 1041 div_okay = 0; 1042 } 1043 break; 1044 case FT232BM: /* FT232BM chip */ 1045 case FT2232C: /* FT2232C chip */ 1046 case FT232RL: 1047 if (baud <= 3000000) { 1048 __u16 product_id = le16_to_cpu( 1049 port->serial->dev->descriptor.idProduct); 1050 if (((FTDI_NDI_HUC_PID == product_id) || 1051 (FTDI_NDI_SPECTRA_SCU_PID == product_id) || 1052 (FTDI_NDI_FUTURE_2_PID == product_id) || 1053 (FTDI_NDI_FUTURE_3_PID == product_id) || 1054 (FTDI_NDI_AURORA_SCU_PID == product_id)) && 1055 (baud == 19200)) { 1056 baud = 1200000; 1057 } 1058 div_value = ftdi_232bm_baud_to_divisor(baud); 1059 } else { 1060 dbg("%s - Baud rate too high!", __func__); 1061 div_value = ftdi_232bm_baud_to_divisor(9600); 1062 div_okay = 0; 1063 baud = 9600; 1064 } 1065 break; 1066 case FT2232H: /* FT2232H chip */ 1067 case FT4232H: /* FT4232H chip */ 1068 if ((baud <= 12000000) & (baud >= 1200)) { 1069 div_value = ftdi_2232h_baud_to_divisor(baud); 1070 } else if (baud < 1200) { 1071 div_value = ftdi_232bm_baud_to_divisor(baud); 1072 } else { 1073 dbg("%s - Baud rate too high!", __func__); 1074 div_value = ftdi_232bm_baud_to_divisor(9600); 1075 div_okay = 0; 1076 baud = 9600; 1077 } 1078 break; 1079 } /* priv->chip_type */ 1080 1081 if (div_okay) { 1082 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 1083 __func__, baud, (unsigned long)div_value, 1084 ftdi_chip_name[priv->chip_type]); 1085 } 1086 1087 tty_encode_baud_rate(tty, baud, baud); 1088 return div_value; 1089 } 1090 1091 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 1092 { 1093 struct ftdi_private *priv = usb_get_serial_port_data(port); 1094 char *buf; 1095 __u16 urb_value; 1096 __u16 urb_index; 1097 __u32 urb_index_value; 1098 int rv; 1099 1100 buf = kmalloc(1, GFP_NOIO); 1101 if (!buf) 1102 return -ENOMEM; 1103 1104 urb_index_value = get_ftdi_divisor(tty, port); 1105 urb_value = (__u16)urb_index_value; 1106 urb_index = (__u16)(urb_index_value >> 16); 1107 if (priv->interface) { /* FT2232C */ 1108 urb_index = (__u16)((urb_index << 8) | priv->interface); 1109 } 1110 1111 rv = usb_control_msg(port->serial->dev, 1112 usb_sndctrlpipe(port->serial->dev, 0), 1113 FTDI_SIO_SET_BAUDRATE_REQUEST, 1114 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1115 urb_value, urb_index, 1116 buf, 0, WDR_SHORT_TIMEOUT); 1117 1118 kfree(buf); 1119 return rv; 1120 } 1121 1122 static int write_latency_timer(struct usb_serial_port *port) 1123 { 1124 struct ftdi_private *priv = usb_get_serial_port_data(port); 1125 struct usb_device *udev = port->serial->dev; 1126 char buf[1]; 1127 int rv = 0; 1128 int l = priv->latency; 1129 1130 if (priv->flags & ASYNC_LOW_LATENCY) 1131 l = 1; 1132 1133 dbg("%s: setting latency timer = %i", __func__, l); 1134 1135 rv = usb_control_msg(udev, 1136 usb_sndctrlpipe(udev, 0), 1137 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1138 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1139 l, priv->interface, 1140 buf, 0, WDR_TIMEOUT); 1141 1142 if (rv < 0) 1143 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv); 1144 return rv; 1145 } 1146 1147 static int read_latency_timer(struct usb_serial_port *port) 1148 { 1149 struct ftdi_private *priv = usb_get_serial_port_data(port); 1150 struct usb_device *udev = port->serial->dev; 1151 unsigned short latency = 0; 1152 int rv = 0; 1153 1154 1155 dbg("%s", __func__); 1156 1157 rv = usb_control_msg(udev, 1158 usb_rcvctrlpipe(udev, 0), 1159 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1160 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1161 0, priv->interface, 1162 (char *) &latency, 1, WDR_TIMEOUT); 1163 1164 if (rv < 0) { 1165 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv); 1166 return -EIO; 1167 } 1168 return latency; 1169 } 1170 1171 static int get_serial_info(struct usb_serial_port *port, 1172 struct serial_struct __user *retinfo) 1173 { 1174 struct ftdi_private *priv = usb_get_serial_port_data(port); 1175 struct serial_struct tmp; 1176 1177 if (!retinfo) 1178 return -EFAULT; 1179 memset(&tmp, 0, sizeof(tmp)); 1180 tmp.flags = priv->flags; 1181 tmp.baud_base = priv->baud_base; 1182 tmp.custom_divisor = priv->custom_divisor; 1183 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1184 return -EFAULT; 1185 return 0; 1186 } /* get_serial_info */ 1187 1188 1189 static int set_serial_info(struct tty_struct *tty, 1190 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1191 { /* set_serial_info */ 1192 struct ftdi_private *priv = usb_get_serial_port_data(port); 1193 struct serial_struct new_serial; 1194 struct ftdi_private old_priv; 1195 1196 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1197 return -EFAULT; 1198 1199 lock_kernel(); 1200 old_priv = *priv; 1201 1202 /* Do error checking and permission checking */ 1203 1204 if (!capable(CAP_SYS_ADMIN)) { 1205 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1206 (priv->flags & ~ASYNC_USR_MASK))) { 1207 unlock_kernel(); 1208 return -EPERM; 1209 } 1210 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1211 (new_serial.flags & ASYNC_USR_MASK)); 1212 priv->custom_divisor = new_serial.custom_divisor; 1213 goto check_and_exit; 1214 } 1215 1216 if ((new_serial.baud_base != priv->baud_base) && 1217 (new_serial.baud_base < 9600)) { 1218 unlock_kernel(); 1219 return -EINVAL; 1220 } 1221 1222 /* Make the changes - these are privileged changes! */ 1223 1224 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1225 (new_serial.flags & ASYNC_FLAGS)); 1226 priv->custom_divisor = new_serial.custom_divisor; 1227 1228 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1229 write_latency_timer(port); 1230 1231 check_and_exit: 1232 if ((old_priv.flags & ASYNC_SPD_MASK) != 1233 (priv->flags & ASYNC_SPD_MASK)) { 1234 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1235 tty->alt_speed = 57600; 1236 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1237 tty->alt_speed = 115200; 1238 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1239 tty->alt_speed = 230400; 1240 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1241 tty->alt_speed = 460800; 1242 else 1243 tty->alt_speed = 0; 1244 } 1245 if (((old_priv.flags & ASYNC_SPD_MASK) != 1246 (priv->flags & ASYNC_SPD_MASK)) || 1247 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1248 (old_priv.custom_divisor != priv->custom_divisor))) { 1249 unlock_kernel(); 1250 change_speed(tty, port); 1251 } 1252 else 1253 unlock_kernel(); 1254 return 0; 1255 1256 } /* set_serial_info */ 1257 1258 1259 /* Determine type of FTDI chip based on USB config and descriptor. */ 1260 static void ftdi_determine_type(struct usb_serial_port *port) 1261 { 1262 struct ftdi_private *priv = usb_get_serial_port_data(port); 1263 struct usb_serial *serial = port->serial; 1264 struct usb_device *udev = serial->dev; 1265 unsigned version; 1266 unsigned interfaces; 1267 1268 /* Assume it is not the original SIO device for now. */ 1269 priv->baud_base = 48000000 / 2; 1270 priv->write_offset = 0; 1271 1272 version = le16_to_cpu(udev->descriptor.bcdDevice); 1273 interfaces = udev->actconfig->desc.bNumInterfaces; 1274 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1275 version, interfaces); 1276 if (interfaces > 1) { 1277 int inter; 1278 1279 /* Multiple interfaces.*/ 1280 if (version == 0x0800) { 1281 priv->chip_type = FT4232H; 1282 /* Hi-speed - baud clock runs at 120MHz */ 1283 priv->baud_base = 120000000 / 2; 1284 } else if (version == 0x0700) { 1285 priv->chip_type = FT2232H; 1286 /* Hi-speed - baud clock runs at 120MHz */ 1287 priv->baud_base = 120000000 / 2; 1288 } else 1289 priv->chip_type = FT2232C; 1290 1291 /* Determine interface code. */ 1292 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1293 if (inter == 0) { 1294 priv->interface = INTERFACE_A; 1295 } else if (inter == 1) { 1296 priv->interface = INTERFACE_B; 1297 } else if (inter == 2) { 1298 priv->interface = INTERFACE_C; 1299 } else if (inter == 3) { 1300 priv->interface = INTERFACE_D; 1301 } 1302 /* BM-type devices have a bug where bcdDevice gets set 1303 * to 0x200 when iSerialNumber is 0. */ 1304 if (version < 0x500) { 1305 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1306 __func__); 1307 } 1308 } else if (version < 0x200) { 1309 /* Old device. Assume its the original SIO. */ 1310 priv->chip_type = SIO; 1311 priv->baud_base = 12000000 / 16; 1312 priv->write_offset = 1; 1313 } else if (version < 0x400) { 1314 /* Assume its an FT8U232AM (or FT8U245AM) */ 1315 /* (It might be a BM because of the iSerialNumber bug, 1316 * but it will still work as an AM device.) */ 1317 priv->chip_type = FT8U232AM; 1318 } else if (version < 0x600) { 1319 /* Assume its an FT232BM (or FT245BM) */ 1320 priv->chip_type = FT232BM; 1321 } else { 1322 /* Assume its an FT232R */ 1323 priv->chip_type = FT232RL; 1324 } 1325 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); 1326 } 1327 1328 1329 /* Determine the maximum packet size for the device. This depends on the chip 1330 * type and the USB host capabilities. The value should be obtained from the 1331 * device descriptor as the chip will use the appropriate values for the host.*/ 1332 static void ftdi_set_max_packet_size(struct usb_serial_port *port) 1333 { 1334 struct ftdi_private *priv = usb_get_serial_port_data(port); 1335 struct usb_serial *serial = port->serial; 1336 struct usb_device *udev = serial->dev; 1337 1338 struct usb_interface *interface = serial->interface; 1339 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc; 1340 1341 unsigned num_endpoints; 1342 int i = 0; 1343 1344 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; 1345 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints); 1346 1347 /* NOTE: some customers have programmed FT232R/FT245R devices 1348 * with an endpoint size of 0 - not good. In this case, we 1349 * want to override the endpoint descriptor setting and use a 1350 * value of 64 for wMaxPacketSize */ 1351 for (i = 0; i < num_endpoints; i++) { 1352 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1, 1353 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize); 1354 ep_desc = &interface->cur_altsetting->endpoint[i].desc; 1355 if (ep_desc->wMaxPacketSize == 0) { 1356 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1357 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i); 1358 } 1359 } 1360 1361 /* set max packet size based on descriptor */ 1362 priv->max_packet_size = ep_desc->wMaxPacketSize; 1363 1364 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size); 1365 } 1366 1367 1368 /* 1369 * *************************************************************************** 1370 * Sysfs Attribute 1371 * *************************************************************************** 1372 */ 1373 1374 static ssize_t show_latency_timer(struct device *dev, 1375 struct device_attribute *attr, char *buf) 1376 { 1377 struct usb_serial_port *port = to_usb_serial_port(dev); 1378 struct ftdi_private *priv = usb_get_serial_port_data(port); 1379 if (priv->flags & ASYNC_LOW_LATENCY) 1380 return sprintf(buf, "1\n"); 1381 else 1382 return sprintf(buf, "%i\n", priv->latency); 1383 } 1384 1385 1386 /* Write a new value of the latency timer, in units of milliseconds. */ 1387 static ssize_t store_latency_timer(struct device *dev, 1388 struct device_attribute *attr, const char *valbuf, 1389 size_t count) 1390 { 1391 struct usb_serial_port *port = to_usb_serial_port(dev); 1392 struct ftdi_private *priv = usb_get_serial_port_data(port); 1393 int v = simple_strtoul(valbuf, NULL, 10); 1394 int rv = 0; 1395 1396 priv->latency = v; 1397 rv = write_latency_timer(port); 1398 if (rv < 0) 1399 return -EIO; 1400 return count; 1401 } 1402 1403 /* Write an event character directly to the FTDI register. The ASCII 1404 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1405 static ssize_t store_event_char(struct device *dev, 1406 struct device_attribute *attr, const char *valbuf, size_t count) 1407 { 1408 struct usb_serial_port *port = to_usb_serial_port(dev); 1409 struct ftdi_private *priv = usb_get_serial_port_data(port); 1410 struct usb_device *udev = port->serial->dev; 1411 char buf[1]; 1412 int v = simple_strtoul(valbuf, NULL, 10); 1413 int rv = 0; 1414 1415 dbg("%s: setting event char = %i", __func__, v); 1416 1417 rv = usb_control_msg(udev, 1418 usb_sndctrlpipe(udev, 0), 1419 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1420 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1421 v, priv->interface, 1422 buf, 0, WDR_TIMEOUT); 1423 1424 if (rv < 0) { 1425 dbg("Unable to write event character: %i", rv); 1426 return -EIO; 1427 } 1428 1429 return count; 1430 } 1431 1432 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1433 store_latency_timer); 1434 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1435 1436 static int create_sysfs_attrs(struct usb_serial_port *port) 1437 { 1438 struct ftdi_private *priv = usb_get_serial_port_data(port); 1439 int retval = 0; 1440 1441 dbg("%s", __func__); 1442 1443 /* XXX I've no idea if the original SIO supports the event_char 1444 * sysfs parameter, so I'm playing it safe. */ 1445 if (priv->chip_type != SIO) { 1446 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1447 retval = device_create_file(&port->dev, &dev_attr_event_char); 1448 if ((!retval) && 1449 (priv->chip_type == FT232BM || 1450 priv->chip_type == FT2232C || 1451 priv->chip_type == FT232RL || 1452 priv->chip_type == FT2232H || 1453 priv->chip_type == FT4232H)) { 1454 retval = device_create_file(&port->dev, 1455 &dev_attr_latency_timer); 1456 } 1457 } 1458 return retval; 1459 } 1460 1461 static void remove_sysfs_attrs(struct usb_serial_port *port) 1462 { 1463 struct ftdi_private *priv = usb_get_serial_port_data(port); 1464 1465 dbg("%s", __func__); 1466 1467 /* XXX see create_sysfs_attrs */ 1468 if (priv->chip_type != SIO) { 1469 device_remove_file(&port->dev, &dev_attr_event_char); 1470 if (priv->chip_type == FT232BM || 1471 priv->chip_type == FT2232C || 1472 priv->chip_type == FT232RL || 1473 priv->chip_type == FT2232H || 1474 priv->chip_type == FT4232H) { 1475 device_remove_file(&port->dev, &dev_attr_latency_timer); 1476 } 1477 } 1478 1479 } 1480 1481 /* 1482 * *************************************************************************** 1483 * FTDI driver specific functions 1484 * *************************************************************************** 1485 */ 1486 1487 /* Probe function to check for special devices */ 1488 static int ftdi_sio_probe(struct usb_serial *serial, 1489 const struct usb_device_id *id) 1490 { 1491 struct ftdi_sio_quirk *quirk = 1492 (struct ftdi_sio_quirk *)id->driver_info; 1493 1494 if (quirk && quirk->probe) { 1495 int ret = quirk->probe(serial); 1496 if (ret != 0) 1497 return ret; 1498 } 1499 1500 usb_set_serial_data(serial, (void *)id->driver_info); 1501 1502 return 0; 1503 } 1504 1505 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1506 { 1507 struct ftdi_private *priv; 1508 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1509 1510 1511 dbg("%s", __func__); 1512 1513 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1514 if (!priv) { 1515 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, 1516 sizeof(struct ftdi_private)); 1517 return -ENOMEM; 1518 } 1519 1520 kref_init(&priv->kref); 1521 spin_lock_init(&priv->rx_lock); 1522 spin_lock_init(&priv->tx_lock); 1523 init_waitqueue_head(&priv->delta_msr_wait); 1524 /* This will push the characters through immediately rather 1525 than queue a task to deliver them */ 1526 priv->flags = ASYNC_LOW_LATENCY; 1527 1528 if (quirk && quirk->port_probe) 1529 quirk->port_probe(priv); 1530 1531 /* Increase the size of read buffers */ 1532 kfree(port->bulk_in_buffer); 1533 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1534 if (!port->bulk_in_buffer) { 1535 kfree(priv); 1536 return -ENOMEM; 1537 } 1538 if (port->read_urb) { 1539 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1540 port->read_urb->transfer_buffer_length = BUFSZ; 1541 } 1542 1543 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1544 priv->port = port; 1545 1546 /* Free port's existing write urb and transfer buffer. */ 1547 if (port->write_urb) { 1548 usb_free_urb(port->write_urb); 1549 port->write_urb = NULL; 1550 } 1551 kfree(port->bulk_out_buffer); 1552 port->bulk_out_buffer = NULL; 1553 1554 usb_set_serial_port_data(port, priv); 1555 1556 ftdi_determine_type(port); 1557 ftdi_set_max_packet_size(port); 1558 read_latency_timer(port); 1559 create_sysfs_attrs(port); 1560 return 0; 1561 } 1562 1563 /* Setup for the USB-UIRT device, which requires hardwired 1564 * baudrate (38400 gets mapped to 312500) */ 1565 /* Called from usbserial:serial_probe */ 1566 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1567 { 1568 dbg("%s", __func__); 1569 1570 priv->flags |= ASYNC_SPD_CUST; 1571 priv->custom_divisor = 77; 1572 priv->force_baud = 38400; 1573 } /* ftdi_USB_UIRT_setup */ 1574 1575 /* Setup for the HE-TIRA1 device, which requires hardwired 1576 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1577 1578 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1579 { 1580 dbg("%s", __func__); 1581 1582 priv->flags |= ASYNC_SPD_CUST; 1583 priv->custom_divisor = 240; 1584 priv->force_baud = 38400; 1585 priv->force_rtscts = 1; 1586 } /* ftdi_HE_TIRA1_setup */ 1587 1588 /* 1589 * Module parameter to control latency timer for NDI FTDI-based USB devices. 1590 * If this value is not set in modprobe.conf.local its value will be set to 1ms. 1591 */ 1592 static int ndi_latency_timer = 1; 1593 1594 /* Setup for the NDI FTDI-based USB devices, which requires hardwired 1595 * baudrate (19200 gets mapped to 1200000). 1596 * 1597 * Called from usbserial:serial_probe. 1598 */ 1599 static int ftdi_NDI_device_setup(struct usb_serial *serial) 1600 { 1601 struct usb_device *udev = serial->dev; 1602 int latency = ndi_latency_timer; 1603 int rv = 0; 1604 char buf[1]; 1605 1606 if (latency == 0) 1607 latency = 1; 1608 if (latency > 99) 1609 latency = 99; 1610 1611 dbg("%s setting NDI device latency to %d", __func__, latency); 1612 dev_info(&udev->dev, "NDI device with a latency value of %d", latency); 1613 1614 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 1615 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1616 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1617 latency, 0, buf, 0, WDR_TIMEOUT); 1618 return 0; 1619 } 1620 1621 /* 1622 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1623 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1624 * userspace using openocd. 1625 */ 1626 static int ftdi_jtag_probe(struct usb_serial *serial) 1627 { 1628 struct usb_device *udev = serial->dev; 1629 struct usb_interface *interface = serial->interface; 1630 1631 dbg("%s", __func__); 1632 1633 if (interface == udev->actconfig->interface[0]) { 1634 dev_info(&udev->dev, 1635 "Ignoring serial port reserved for JTAG\n"); 1636 return -ENODEV; 1637 } 1638 1639 return 0; 1640 } 1641 1642 /* 1643 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1644 * We have to correct it if we want to read from it. 1645 */ 1646 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1647 { 1648 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1649 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1650 1651 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1652 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1653 dev_info(&serial->dev->dev, 1654 "Fixing invalid wMaxPacketSize on read pipe\n"); 1655 } 1656 1657 return 0; 1658 } 1659 1660 static void ftdi_sio_priv_release(struct kref *k) 1661 { 1662 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); 1663 1664 kfree(priv); 1665 } 1666 1667 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1668 { 1669 struct ftdi_private *priv = usb_get_serial_port_data(port); 1670 1671 dbg("%s", __func__); 1672 1673 remove_sysfs_attrs(port); 1674 1675 kref_put(&priv->kref, ftdi_sio_priv_release); 1676 1677 return 0; 1678 } 1679 1680 static int ftdi_open(struct tty_struct *tty, 1681 struct usb_serial_port *port, struct file *filp) 1682 { /* ftdi_open */ 1683 struct usb_device *dev = port->serial->dev; 1684 struct ftdi_private *priv = usb_get_serial_port_data(port); 1685 unsigned long flags; 1686 1687 int result = 0; 1688 char buf[1]; /* Needed for the usb_control_msg I think */ 1689 1690 dbg("%s", __func__); 1691 1692 spin_lock_irqsave(&priv->tx_lock, flags); 1693 priv->tx_bytes = 0; 1694 spin_unlock_irqrestore(&priv->tx_lock, flags); 1695 spin_lock_irqsave(&priv->rx_lock, flags); 1696 priv->rx_bytes = 0; 1697 spin_unlock_irqrestore(&priv->rx_lock, flags); 1698 1699 if (tty) 1700 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1701 1702 write_latency_timer(port); 1703 1704 /* No error checking for this (will get errors later anyway) */ 1705 /* See ftdi_sio.h for description of what is reset */ 1706 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1707 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1708 FTDI_SIO_RESET_SIO, 1709 priv->interface, buf, 0, WDR_TIMEOUT); 1710 1711 /* Termios defaults are set by usb_serial_init. We don't change 1712 port->tty->termios - this would lose speed settings, etc. 1713 This is same behaviour as serial.c/rs_open() - Kuba */ 1714 1715 /* ftdi_set_termios will send usb control messages */ 1716 if (tty) 1717 ftdi_set_termios(tty, port, tty->termios); 1718 1719 /* Not throttled */ 1720 spin_lock_irqsave(&priv->rx_lock, flags); 1721 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1722 spin_unlock_irqrestore(&priv->rx_lock, flags); 1723 1724 /* Start reading from the device */ 1725 priv->rx_processed = 0; 1726 usb_fill_bulk_urb(port->read_urb, dev, 1727 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1728 port->read_urb->transfer_buffer, 1729 port->read_urb->transfer_buffer_length, 1730 ftdi_read_bulk_callback, port); 1731 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1732 if (result) 1733 dev_err(&port->dev, 1734 "%s - failed submitting read urb, error %d\n", 1735 __func__, result); 1736 else 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 1783 /* cancel any scheduled reading */ 1784 cancel_delayed_work_sync(&priv->rx_work); 1785 1786 /* shutdown our bulk read */ 1787 usb_kill_urb(port->read_urb); 1788 kref_put(&priv->kref, ftdi_sio_priv_release); 1789 } /* ftdi_close */ 1790 1791 1792 1793 /* The SIO requires the first byte to have: 1794 * B0 1 1795 * B1 0 1796 * B2..7 length of message excluding byte 0 1797 * 1798 * The new devices do not require this byte 1799 */ 1800 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1801 const unsigned char *buf, int count) 1802 { /* ftdi_write */ 1803 struct ftdi_private *priv = usb_get_serial_port_data(port); 1804 struct urb *urb; 1805 unsigned char *buffer; 1806 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1807 int status; 1808 int transfer_size; 1809 unsigned long flags; 1810 1811 dbg("%s port %d, %d bytes", __func__, port->number, count); 1812 1813 if (count == 0) { 1814 dbg("write request of 0 bytes"); 1815 return 0; 1816 } 1817 spin_lock_irqsave(&priv->tx_lock, flags); 1818 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1819 spin_unlock_irqrestore(&priv->tx_lock, flags); 1820 dbg("%s - write limit hit\n", __func__); 1821 return 0; 1822 } 1823 priv->tx_outstanding_urbs++; 1824 spin_unlock_irqrestore(&priv->tx_lock, flags); 1825 1826 data_offset = priv->write_offset; 1827 dbg("data_offset set to %d", data_offset); 1828 1829 /* Determine total transfer size */ 1830 transfer_size = count; 1831 if (data_offset > 0) { 1832 /* Original sio needs control bytes too... */ 1833 transfer_size += (data_offset * 1834 ((count + (priv->max_packet_size - 1 - data_offset)) / 1835 (priv->max_packet_size - data_offset))); 1836 } 1837 1838 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1839 if (!buffer) { 1840 dev_err(&port->dev, 1841 "%s ran out of kernel memory for urb ...\n", __func__); 1842 count = -ENOMEM; 1843 goto error_no_buffer; 1844 } 1845 1846 urb = usb_alloc_urb(0, GFP_ATOMIC); 1847 if (!urb) { 1848 dev_err(&port->dev, "%s - no more free urbs\n", __func__); 1849 count = -ENOMEM; 1850 goto error_no_urb; 1851 } 1852 1853 /* Copy data */ 1854 if (data_offset > 0) { 1855 /* Original sio requires control byte at start of 1856 each packet. */ 1857 int user_pktsz = priv->max_packet_size - data_offset; 1858 int todo = count; 1859 unsigned char *first_byte = buffer; 1860 const unsigned char *current_position = buf; 1861 1862 while (todo > 0) { 1863 if (user_pktsz > todo) 1864 user_pktsz = todo; 1865 /* Write the control byte at the front of the packet*/ 1866 *first_byte = 1 | ((user_pktsz) << 2); 1867 /* Copy data for packet */ 1868 memcpy(first_byte + data_offset, 1869 current_position, user_pktsz); 1870 first_byte += user_pktsz + data_offset; 1871 current_position += user_pktsz; 1872 todo -= user_pktsz; 1873 } 1874 } else { 1875 /* No control byte required. */ 1876 /* Copy in the data to send */ 1877 memcpy(buffer, buf, count); 1878 } 1879 1880 usb_serial_debug_data(debug, &port->dev, __func__, 1881 transfer_size, buffer); 1882 1883 /* fill the buffer and send it */ 1884 usb_fill_bulk_urb(urb, port->serial->dev, 1885 usb_sndbulkpipe(port->serial->dev, 1886 port->bulk_out_endpointAddress), 1887 buffer, transfer_size, 1888 ftdi_write_bulk_callback, port); 1889 1890 status = usb_submit_urb(urb, GFP_ATOMIC); 1891 if (status) { 1892 dev_err(&port->dev, 1893 "%s - failed submitting write urb, error %d\n", 1894 __func__, status); 1895 count = status; 1896 goto error; 1897 } else { 1898 spin_lock_irqsave(&priv->tx_lock, flags); 1899 priv->tx_outstanding_bytes += count; 1900 priv->tx_bytes += count; 1901 spin_unlock_irqrestore(&priv->tx_lock, flags); 1902 } 1903 1904 /* we are done with this urb, so let the host driver 1905 * really free it when it is finished with it */ 1906 usb_free_urb(urb); 1907 1908 dbg("%s write returning: %d", __func__, count); 1909 return count; 1910 error: 1911 usb_free_urb(urb); 1912 error_no_urb: 1913 kfree(buffer); 1914 error_no_buffer: 1915 spin_lock_irqsave(&priv->tx_lock, flags); 1916 priv->tx_outstanding_urbs--; 1917 spin_unlock_irqrestore(&priv->tx_lock, flags); 1918 return count; 1919 } /* ftdi_write */ 1920 1921 1922 /* This function may get called when the device is closed */ 1923 1924 static void ftdi_write_bulk_callback(struct urb *urb) 1925 { 1926 unsigned long flags; 1927 struct usb_serial_port *port = urb->context; 1928 struct ftdi_private *priv; 1929 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1930 unsigned long countback; 1931 int status = urb->status; 1932 1933 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1934 kfree(urb->transfer_buffer); 1935 1936 dbg("%s - port %d", __func__, port->number); 1937 1938 priv = usb_get_serial_port_data(port); 1939 if (!priv) { 1940 dbg("%s - bad port private data pointer - exiting", __func__); 1941 return; 1942 } 1943 /* account for transferred data */ 1944 countback = urb->actual_length; 1945 data_offset = priv->write_offset; 1946 if (data_offset > 0) { 1947 /* Subtract the control bytes */ 1948 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size)); 1949 } 1950 spin_lock_irqsave(&priv->tx_lock, flags); 1951 --priv->tx_outstanding_urbs; 1952 priv->tx_outstanding_bytes -= countback; 1953 spin_unlock_irqrestore(&priv->tx_lock, flags); 1954 1955 if (status) { 1956 dbg("nonzero write bulk status received: %d", status); 1957 return; 1958 } 1959 1960 usb_serial_port_softint(port); 1961 } /* ftdi_write_bulk_callback */ 1962 1963 1964 static int ftdi_write_room(struct tty_struct *tty) 1965 { 1966 struct usb_serial_port *port = tty->driver_data; 1967 struct ftdi_private *priv = usb_get_serial_port_data(port); 1968 int room; 1969 unsigned long flags; 1970 1971 dbg("%s - port %d", __func__, port->number); 1972 1973 spin_lock_irqsave(&priv->tx_lock, flags); 1974 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1975 /* 1976 * We really can take anything the user throws at us 1977 * but let's pick a nice big number to tell the tty 1978 * layer that we have lots of free space 1979 */ 1980 room = 2048; 1981 } else { 1982 room = 0; 1983 } 1984 spin_unlock_irqrestore(&priv->tx_lock, flags); 1985 return room; 1986 } 1987 1988 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1989 { 1990 struct usb_serial_port *port = tty->driver_data; 1991 struct ftdi_private *priv = usb_get_serial_port_data(port); 1992 int buffered; 1993 unsigned long flags; 1994 1995 dbg("%s - port %d", __func__, port->number); 1996 1997 spin_lock_irqsave(&priv->tx_lock, flags); 1998 buffered = (int)priv->tx_outstanding_bytes; 1999 spin_unlock_irqrestore(&priv->tx_lock, flags); 2000 if (buffered < 0) { 2001 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", 2002 __func__); 2003 buffered = 0; 2004 } 2005 return buffered; 2006 } 2007 2008 static void ftdi_read_bulk_callback(struct urb *urb) 2009 { 2010 struct usb_serial_port *port = urb->context; 2011 struct tty_struct *tty; 2012 struct ftdi_private *priv; 2013 unsigned long countread; 2014 unsigned long flags; 2015 int status = urb->status; 2016 2017 if (urb->number_of_packets > 0) { 2018 dev_err(&port->dev, "%s transfer_buffer_length %d " 2019 "actual_length %d number of packets %d\n", __func__, 2020 urb->transfer_buffer_length, 2021 urb->actual_length, urb->number_of_packets); 2022 dev_err(&port->dev, "%s transfer_flags %x\n", __func__, 2023 urb->transfer_flags); 2024 } 2025 2026 dbg("%s - port %d", __func__, port->number); 2027 2028 if (port->port.count <= 0) 2029 return; 2030 2031 tty = tty_port_tty_get(&port->port); 2032 if (!tty) { 2033 dbg("%s - bad tty pointer - exiting", __func__); 2034 return; 2035 } 2036 2037 priv = usb_get_serial_port_data(port); 2038 if (!priv) { 2039 dbg("%s - bad port private data pointer - exiting", __func__); 2040 goto out; 2041 } 2042 2043 if (urb != port->read_urb) 2044 dev_err(&port->dev, "%s - Not my urb!\n", __func__); 2045 2046 if (status) { 2047 /* This will happen at close every time so it is a dbg not an 2048 err */ 2049 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 2050 goto out; 2051 } 2052 2053 /* count data bytes, but not status bytes */ 2054 countread = urb->actual_length; 2055 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size); 2056 spin_lock_irqsave(&priv->rx_lock, flags); 2057 priv->rx_bytes += countread; 2058 spin_unlock_irqrestore(&priv->rx_lock, flags); 2059 2060 ftdi_process_read(&priv->rx_work.work); 2061 out: 2062 tty_kref_put(tty); 2063 } /* ftdi_read_bulk_callback */ 2064 2065 2066 static void ftdi_process_read(struct work_struct *work) 2067 { /* ftdi_process_read */ 2068 struct ftdi_private *priv = 2069 container_of(work, struct ftdi_private, rx_work.work); 2070 struct usb_serial_port *port = priv->port; 2071 struct urb *urb; 2072 struct tty_struct *tty; 2073 char error_flag; 2074 unsigned char *data; 2075 2076 int i; 2077 int result; 2078 int need_flip; 2079 int packet_offset; 2080 unsigned long flags; 2081 2082 dbg("%s - port %d", __func__, port->number); 2083 2084 if (port->port.count <= 0) 2085 return; 2086 2087 tty = tty_port_tty_get(&port->port); 2088 if (!tty) { 2089 dbg("%s - bad tty pointer - exiting", __func__); 2090 return; 2091 } 2092 2093 priv = usb_get_serial_port_data(port); 2094 if (!priv) { 2095 dbg("%s - bad port private data pointer - exiting", __func__); 2096 goto out; 2097 } 2098 2099 urb = port->read_urb; 2100 if (!urb) { 2101 dbg("%s - bad read_urb pointer - exiting", __func__); 2102 goto out; 2103 } 2104 2105 data = urb->transfer_buffer; 2106 2107 if (priv->rx_processed) { 2108 dbg("%s - already processed: %d bytes, %d remain", __func__, 2109 priv->rx_processed, 2110 urb->actual_length - priv->rx_processed); 2111 } else { 2112 /* The first two bytes of every read packet are status */ 2113 if (urb->actual_length > 2) 2114 usb_serial_debug_data(debug, &port->dev, __func__, 2115 urb->actual_length, data); 2116 else 2117 dbg("Status only: %03oo %03oo", data[0], data[1]); 2118 } 2119 2120 2121 /* TO DO -- check for hung up line and handle appropriately: */ 2122 /* send hangup */ 2123 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 2124 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 2125 2126 need_flip = 0; 2127 for (packet_offset = priv->rx_processed; 2128 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) { 2129 int length; 2130 2131 /* Compare new line status to the old one, signal if different/ 2132 N.B. packet may be processed more than once, but differences 2133 are only processed once. */ 2134 char new_status = data[packet_offset + 0] & 2135 FTDI_STATUS_B0_MASK; 2136 if (new_status != priv->prev_status) { 2137 priv->diff_status |= 2138 new_status ^ priv->prev_status; 2139 wake_up_interruptible(&priv->delta_msr_wait); 2140 priv->prev_status = new_status; 2141 } 2142 2143 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2; 2144 if (length < 0) { 2145 dev_err(&port->dev, "%s - bad packet length: %d\n", 2146 __func__, length+2); 2147 length = 0; 2148 } 2149 2150 if (priv->rx_flags & THROTTLED) { 2151 dbg("%s - throttled", __func__); 2152 break; 2153 } 2154 if (tty_buffer_request_room(tty, length) < length) { 2155 /* break out & wait for throttling/unthrottling to 2156 happen */ 2157 dbg("%s - receive room low", __func__); 2158 break; 2159 } 2160 2161 /* Handle errors and break */ 2162 error_flag = TTY_NORMAL; 2163 /* Although the device uses a bitmask and hence can have 2164 multiple errors on a packet - the order here sets the 2165 priority the error is returned to the tty layer */ 2166 2167 if (data[packet_offset+1] & FTDI_RS_OE) { 2168 error_flag = TTY_OVERRUN; 2169 dbg("OVERRRUN error"); 2170 } 2171 if (data[packet_offset+1] & FTDI_RS_BI) { 2172 error_flag = TTY_BREAK; 2173 dbg("BREAK received"); 2174 usb_serial_handle_break(port); 2175 } 2176 if (data[packet_offset+1] & FTDI_RS_PE) { 2177 error_flag = TTY_PARITY; 2178 dbg("PARITY error"); 2179 } 2180 if (data[packet_offset+1] & FTDI_RS_FE) { 2181 error_flag = TTY_FRAME; 2182 dbg("FRAMING error"); 2183 } 2184 if (length > 0) { 2185 for (i = 2; i < length+2; i++) { 2186 /* Note that the error flag is duplicated for 2187 every character received since we don't know 2188 which character it applied to */ 2189 if (!usb_serial_handle_sysrq_char(tty, port, 2190 data[packet_offset + i])) 2191 tty_insert_flip_char(tty, 2192 data[packet_offset + i], 2193 error_flag); 2194 } 2195 need_flip = 1; 2196 } 2197 2198 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 2199 /* if a parity error is detected you get status packets forever 2200 until a character is sent without a parity error. 2201 This doesn't work well since the application receives a 2202 never ending stream of bad data - even though new data 2203 hasn't been sent. Therefore I (bill) have taken this out. 2204 However - this might make sense for framing errors and so on 2205 so I am leaving the code in for now. 2206 */ 2207 else { 2208 if (error_flag != TTY_NORMAL) { 2209 dbg("error_flag is not normal"); 2210 /* In this case it is just status - if that is 2211 an error send a bad character */ 2212 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 2213 tty_flip_buffer_push(tty); 2214 tty_insert_flip_char(tty, 0xff, error_flag); 2215 need_flip = 1; 2216 } 2217 } 2218 #endif 2219 } /* "for(packet_offset=0..." */ 2220 2221 /* Low latency */ 2222 if (need_flip) 2223 tty_flip_buffer_push(tty); 2224 2225 if (packet_offset < urb->actual_length) { 2226 /* not completely processed - record progress */ 2227 priv->rx_processed = packet_offset; 2228 dbg("%s - incomplete, %d bytes processed, %d remain", 2229 __func__, packet_offset, 2230 urb->actual_length - packet_offset); 2231 /* check if we were throttled while processing */ 2232 spin_lock_irqsave(&priv->rx_lock, flags); 2233 if (priv->rx_flags & THROTTLED) { 2234 priv->rx_flags |= ACTUALLY_THROTTLED; 2235 spin_unlock_irqrestore(&priv->rx_lock, flags); 2236 dbg("%s - deferring remainder until unthrottled", 2237 __func__); 2238 goto out; 2239 } 2240 spin_unlock_irqrestore(&priv->rx_lock, flags); 2241 /* if the port is closed stop trying to read */ 2242 if (port->port.count > 0) 2243 /* delay processing of remainder */ 2244 schedule_delayed_work(&priv->rx_work, 1); 2245 else 2246 dbg("%s - port is closed", __func__); 2247 goto out; 2248 } 2249 2250 /* urb is completely processed */ 2251 priv->rx_processed = 0; 2252 2253 /* if the port is closed stop trying to read */ 2254 if (port->port.count > 0) { 2255 /* Continue trying to always read */ 2256 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2257 usb_rcvbulkpipe(port->serial->dev, 2258 port->bulk_in_endpointAddress), 2259 port->read_urb->transfer_buffer, 2260 port->read_urb->transfer_buffer_length, 2261 ftdi_read_bulk_callback, port); 2262 2263 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2264 if (result) 2265 dev_err(&port->dev, 2266 "%s - failed resubmitting read urb, error %d\n", 2267 __func__, result); 2268 } 2269 out: 2270 tty_kref_put(tty); 2271 } /* ftdi_process_read */ 2272 2273 2274 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2275 { 2276 struct usb_serial_port *port = tty->driver_data; 2277 struct ftdi_private *priv = usb_get_serial_port_data(port); 2278 __u16 urb_value = 0; 2279 char buf[1]; 2280 2281 /* break_state = -1 to turn on break, and 0 to turn off break */ 2282 /* see drivers/char/tty_io.c to see it used */ 2283 /* last_set_data_urb_value NEVER has the break bit set in it */ 2284 2285 if (break_state) 2286 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2287 else 2288 urb_value = priv->last_set_data_urb_value; 2289 2290 if (usb_control_msg(port->serial->dev, 2291 usb_sndctrlpipe(port->serial->dev, 0), 2292 FTDI_SIO_SET_DATA_REQUEST, 2293 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2294 urb_value , priv->interface, 2295 buf, 0, WDR_TIMEOUT) < 0) { 2296 dev_err(&port->dev, "%s FAILED to enable/disable break state " 2297 "(state was %d)\n", __func__, break_state); 2298 } 2299 2300 dbg("%s break state is %d - urb is %d", __func__, 2301 break_state, urb_value); 2302 2303 } 2304 2305 2306 /* old_termios contains the original termios settings and tty->termios contains 2307 * the new setting to be used 2308 * WARNING: set_termios calls this with old_termios in kernel space 2309 */ 2310 2311 static void ftdi_set_termios(struct tty_struct *tty, 2312 struct usb_serial_port *port, struct ktermios *old_termios) 2313 { /* ftdi_termios */ 2314 struct usb_device *dev = port->serial->dev; 2315 struct ftdi_private *priv = usb_get_serial_port_data(port); 2316 struct ktermios *termios = tty->termios; 2317 unsigned int cflag = termios->c_cflag; 2318 __u16 urb_value; /* will hold the new flags */ 2319 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2320 2321 /* Added for xon/xoff support */ 2322 unsigned int iflag = termios->c_iflag; 2323 unsigned char vstop; 2324 unsigned char vstart; 2325 2326 dbg("%s", __func__); 2327 2328 /* Force baud rate if this device requires it, unless it is set to 2329 B0. */ 2330 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2331 dbg("%s: forcing baud rate for this device", __func__); 2332 tty_encode_baud_rate(tty, priv->force_baud, 2333 priv->force_baud); 2334 } 2335 2336 /* Force RTS-CTS if this device requires it. */ 2337 if (priv->force_rtscts) { 2338 dbg("%s: forcing rtscts for this device", __func__); 2339 termios->c_cflag |= CRTSCTS; 2340 } 2341 2342 cflag = termios->c_cflag; 2343 2344 /* FIXME -For this cut I don't care if the line is really changing or 2345 not - so just do the change regardless - should be able to 2346 compare old_termios and tty->termios */ 2347 /* NOTE These routines can get interrupted by 2348 ftdi_sio_read_bulk_callback - need to examine what this means - 2349 don't see any problems yet */ 2350 2351 /* Set number of data bits, parity, stop bits */ 2352 2353 termios->c_cflag &= ~CMSPAR; 2354 2355 urb_value = 0; 2356 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2357 FTDI_SIO_SET_DATA_STOP_BITS_1); 2358 urb_value |= (cflag & PARENB ? 2359 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2360 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2361 FTDI_SIO_SET_DATA_PARITY_NONE); 2362 if (cflag & CSIZE) { 2363 switch (cflag & CSIZE) { 2364 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2365 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2366 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2367 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2368 default: 2369 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); 2370 } 2371 } 2372 2373 /* This is needed by the break command since it uses the same command 2374 - but is or'ed with this value */ 2375 priv->last_set_data_urb_value = urb_value; 2376 2377 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2378 FTDI_SIO_SET_DATA_REQUEST, 2379 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2380 urb_value , priv->interface, 2381 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2382 dev_err(&port->dev, "%s FAILED to set " 2383 "databits/stopbits/parity\n", __func__); 2384 } 2385 2386 /* Now do the baudrate */ 2387 if ((cflag & CBAUD) == B0) { 2388 /* Disable flow control */ 2389 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2390 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2391 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2392 0, priv->interface, 2393 buf, 0, WDR_TIMEOUT) < 0) { 2394 dev_err(&port->dev, 2395 "%s error from disable flowcontrol urb\n", 2396 __func__); 2397 } 2398 /* Drop RTS and DTR */ 2399 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2400 } else { 2401 /* set the baudrate determined before */ 2402 if (change_speed(tty, port)) 2403 dev_err(&port->dev, "%s urb failed to set baudrate\n", 2404 __func__); 2405 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2406 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2407 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2408 } 2409 2410 /* Set flow control */ 2411 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2412 if (cflag & CRTSCTS) { 2413 dbg("%s Setting to CRTSCTS flow control", __func__); 2414 if (usb_control_msg(dev, 2415 usb_sndctrlpipe(dev, 0), 2416 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2417 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2418 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2419 buf, 0, WDR_TIMEOUT) < 0) { 2420 dev_err(&port->dev, 2421 "urb failed to set to rts/cts flow control\n"); 2422 } 2423 2424 } else { 2425 /* 2426 * Xon/Xoff code 2427 * 2428 * Check the IXOFF status in the iflag component of the 2429 * termios structure. If IXOFF is not set, the pre-xon/xoff 2430 * code is executed. 2431 */ 2432 if (iflag & IXOFF) { 2433 dbg("%s request to enable xonxoff iflag=%04x", 2434 __func__, iflag); 2435 /* Try to enable the XON/XOFF on the ftdi_sio 2436 * Set the vstart and vstop -- could have been done up 2437 * above where a lot of other dereferencing is done but 2438 * that would be very inefficient as vstart and vstop 2439 * are not always needed. 2440 */ 2441 vstart = termios->c_cc[VSTART]; 2442 vstop = termios->c_cc[VSTOP]; 2443 urb_value = (vstop << 8) | (vstart); 2444 2445 if (usb_control_msg(dev, 2446 usb_sndctrlpipe(dev, 0), 2447 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2448 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2449 urb_value , (FTDI_SIO_XON_XOFF_HS 2450 | priv->interface), 2451 buf, 0, WDR_TIMEOUT) < 0) { 2452 dev_err(&port->dev, "urb failed to set to " 2453 "xon/xoff flow control\n"); 2454 } 2455 } else { 2456 /* else clause to only run if cflag ! CRTSCTS and iflag 2457 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2458 * stack - not by device */ 2459 dbg("%s Turning off hardware flow control", __func__); 2460 if (usb_control_msg(dev, 2461 usb_sndctrlpipe(dev, 0), 2462 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2463 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2464 0, priv->interface, 2465 buf, 0, WDR_TIMEOUT) < 0) { 2466 dev_err(&port->dev, 2467 "urb failed to clear flow control\n"); 2468 } 2469 } 2470 2471 } 2472 return; 2473 } 2474 2475 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2476 { 2477 struct usb_serial_port *port = tty->driver_data; 2478 struct ftdi_private *priv = usb_get_serial_port_data(port); 2479 unsigned char buf[2]; 2480 int ret; 2481 2482 dbg("%s TIOCMGET", __func__); 2483 switch (priv->chip_type) { 2484 case SIO: 2485 /* Request the status from the device */ 2486 ret = usb_control_msg(port->serial->dev, 2487 usb_rcvctrlpipe(port->serial->dev, 0), 2488 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2489 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2490 0, 0, 2491 buf, 1, WDR_TIMEOUT); 2492 if (ret < 0) 2493 return ret; 2494 break; 2495 case FT8U232AM: 2496 case FT232BM: 2497 case FT2232C: 2498 case FT232RL: 2499 case FT2232H: 2500 case FT4232H: 2501 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2502 value) - in the same format as the data returned from the in 2503 point */ 2504 ret = usb_control_msg(port->serial->dev, 2505 usb_rcvctrlpipe(port->serial->dev, 0), 2506 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2507 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2508 0, priv->interface, 2509 buf, 2, WDR_TIMEOUT); 2510 if (ret < 0) 2511 return ret; 2512 break; 2513 default: 2514 return -EFAULT; 2515 } 2516 2517 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2518 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2519 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2520 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2521 priv->last_dtr_rts; 2522 } 2523 2524 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2525 unsigned int set, unsigned int clear) 2526 { 2527 struct usb_serial_port *port = tty->driver_data; 2528 dbg("%s TIOCMSET", __func__); 2529 return update_mctrl(port, set, clear); 2530 } 2531 2532 2533 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2534 unsigned int cmd, unsigned long arg) 2535 { 2536 struct usb_serial_port *port = tty->driver_data; 2537 struct ftdi_private *priv = usb_get_serial_port_data(port); 2538 2539 dbg("%s cmd 0x%04x", __func__, cmd); 2540 2541 /* Based on code from acm.c and others */ 2542 switch (cmd) { 2543 2544 case TIOCGSERIAL: /* gets serial port data */ 2545 return get_serial_info(port, 2546 (struct serial_struct __user *) arg); 2547 2548 case TIOCSSERIAL: /* sets serial port data */ 2549 return set_serial_info(tty, port, 2550 (struct serial_struct __user *) arg); 2551 2552 /* 2553 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2554 * - mask passed in arg for lines of interest 2555 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2556 * Caller should use TIOCGICOUNT to see which one it was. 2557 * 2558 * This code is borrowed from linux/drivers/char/serial.c 2559 */ 2560 case TIOCMIWAIT: 2561 while (priv != NULL) { 2562 interruptible_sleep_on(&priv->delta_msr_wait); 2563 /* see if a signal did it */ 2564 if (signal_pending(current)) 2565 return -ERESTARTSYS; 2566 else { 2567 char diff = priv->diff_status; 2568 2569 if (diff == 0) 2570 return -EIO; /* no change => error */ 2571 2572 /* Consume all events */ 2573 priv->diff_status = 0; 2574 2575 /* Return 0 if caller wanted to know about 2576 these bits */ 2577 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2578 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2579 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2580 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2581 return 0; 2582 } 2583 /* 2584 * Otherwise caller can't care less about what 2585 * happened,and so we continue to wait for more 2586 * events. 2587 */ 2588 } 2589 } 2590 return 0; 2591 default: 2592 break; 2593 } 2594 /* This is not necessarily an error - turns out the higher layers 2595 * will do some ioctls themselves (see comment above) 2596 */ 2597 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2598 return -ENOIOCTLCMD; 2599 } 2600 2601 static void ftdi_throttle(struct tty_struct *tty) 2602 { 2603 struct usb_serial_port *port = tty->driver_data; 2604 struct ftdi_private *priv = usb_get_serial_port_data(port); 2605 unsigned long flags; 2606 2607 dbg("%s - port %d", __func__, port->number); 2608 2609 spin_lock_irqsave(&priv->rx_lock, flags); 2610 priv->rx_flags |= THROTTLED; 2611 spin_unlock_irqrestore(&priv->rx_lock, flags); 2612 } 2613 2614 2615 static void ftdi_unthrottle(struct tty_struct *tty) 2616 { 2617 struct usb_serial_port *port = tty->driver_data; 2618 struct ftdi_private *priv = usb_get_serial_port_data(port); 2619 int actually_throttled; 2620 unsigned long flags; 2621 2622 dbg("%s - port %d", __func__, port->number); 2623 2624 spin_lock_irqsave(&priv->rx_lock, flags); 2625 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2626 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2627 spin_unlock_irqrestore(&priv->rx_lock, flags); 2628 2629 if (actually_throttled) 2630 schedule_delayed_work(&priv->rx_work, 0); 2631 } 2632 2633 static int __init ftdi_init(void) 2634 { 2635 int retval; 2636 2637 dbg("%s", __func__); 2638 if (vendor > 0 && product > 0) { 2639 /* Add user specified VID/PID to reserved element of table. */ 2640 int i; 2641 for (i = 0; id_table_combined[i].idVendor; i++) 2642 ; 2643 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2644 id_table_combined[i].idVendor = vendor; 2645 id_table_combined[i].idProduct = product; 2646 } 2647 retval = usb_serial_register(&ftdi_sio_device); 2648 if (retval) 2649 goto failed_sio_register; 2650 retval = usb_register(&ftdi_driver); 2651 if (retval) 2652 goto failed_usb_register; 2653 2654 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 2655 DRIVER_DESC "\n"); 2656 return 0; 2657 failed_usb_register: 2658 usb_serial_deregister(&ftdi_sio_device); 2659 failed_sio_register: 2660 return retval; 2661 } 2662 2663 2664 static void __exit ftdi_exit(void) 2665 { 2666 2667 dbg("%s", __func__); 2668 2669 usb_deregister(&ftdi_driver); 2670 usb_serial_deregister(&ftdi_sio_device); 2671 2672 } 2673 2674 2675 module_init(ftdi_init); 2676 module_exit(ftdi_exit); 2677 2678 MODULE_AUTHOR(DRIVER_AUTHOR); 2679 MODULE_DESCRIPTION(DRIVER_DESC); 2680 MODULE_LICENSE("GPL"); 2681 2682 module_param(debug, bool, S_IRUGO | S_IWUSR); 2683 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2684 module_param(vendor, ushort, 0); 2685 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2686 __MODULE_STRING(FTDI_VID)")"); 2687 module_param(product, ushort, 0); 2688 MODULE_PARM_DESC(product, "User specified product ID"); 2689 2690 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR); 2691 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override"); 2692