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 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) }, 703 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID), 704 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 705 { }, /* Optional parameter entry */ 706 { } /* Terminating entry */ 707 }; 708 709 MODULE_DEVICE_TABLE(usb, id_table_combined); 710 711 static struct usb_driver ftdi_driver = { 712 .name = "ftdi_sio", 713 .probe = usb_serial_probe, 714 .disconnect = usb_serial_disconnect, 715 .id_table = id_table_combined, 716 .no_dynamic_id = 1, 717 }; 718 719 static const char *ftdi_chip_name[] = { 720 [SIO] = "SIO", /* the serial part of FT8U100AX */ 721 [FT8U232AM] = "FT8U232AM", 722 [FT232BM] = "FT232BM", 723 [FT2232C] = "FT2232C", 724 [FT232RL] = "FT232RL", 725 [FT2232H] = "FT2232H", 726 [FT4232H] = "FT4232H" 727 }; 728 729 730 /* Constants for read urb and write urb */ 731 #define BUFSZ 512 732 733 /* rx_flags */ 734 #define THROTTLED 0x01 735 #define ACTUALLY_THROTTLED 0x02 736 737 /* Used for TIOCMIWAIT */ 738 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 739 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 740 /* End TIOCMIWAIT */ 741 742 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 743 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 744 745 /* function prototypes for a FTDI serial converter */ 746 static int ftdi_sio_probe(struct usb_serial *serial, 747 const struct usb_device_id *id); 748 static int ftdi_sio_port_probe(struct usb_serial_port *port); 749 static int ftdi_sio_port_remove(struct usb_serial_port *port); 750 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port); 751 static void ftdi_close(struct usb_serial_port *port); 752 static void ftdi_dtr_rts(struct usb_serial_port *port, int on); 753 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 754 const unsigned char *buf, int count); 755 static int ftdi_write_room(struct tty_struct *tty); 756 static int ftdi_chars_in_buffer(struct tty_struct *tty); 757 static void ftdi_write_bulk_callback(struct urb *urb); 758 static void ftdi_read_bulk_callback(struct urb *urb); 759 static void ftdi_process_read(struct work_struct *work); 760 static void ftdi_set_termios(struct tty_struct *tty, 761 struct usb_serial_port *port, struct ktermios *old); 762 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 763 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 764 unsigned int set, unsigned int clear); 765 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 766 unsigned int cmd, unsigned long arg); 767 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 768 static void ftdi_throttle(struct tty_struct *tty); 769 static void ftdi_unthrottle(struct tty_struct *tty); 770 771 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 772 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 773 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 774 static __u32 ftdi_232bm_baud_to_divisor(int baud); 775 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base); 776 static __u32 ftdi_2232h_baud_to_divisor(int baud); 777 778 static struct usb_serial_driver ftdi_sio_device = { 779 .driver = { 780 .owner = THIS_MODULE, 781 .name = "ftdi_sio", 782 }, 783 .description = "FTDI USB Serial Device", 784 .usb_driver = &ftdi_driver , 785 .id_table = id_table_combined, 786 .num_ports = 1, 787 .probe = ftdi_sio_probe, 788 .port_probe = ftdi_sio_port_probe, 789 .port_remove = ftdi_sio_port_remove, 790 .open = ftdi_open, 791 .close = ftdi_close, 792 .dtr_rts = ftdi_dtr_rts, 793 .throttle = ftdi_throttle, 794 .unthrottle = ftdi_unthrottle, 795 .write = ftdi_write, 796 .write_room = ftdi_write_room, 797 .chars_in_buffer = ftdi_chars_in_buffer, 798 .read_bulk_callback = ftdi_read_bulk_callback, 799 .write_bulk_callback = ftdi_write_bulk_callback, 800 .tiocmget = ftdi_tiocmget, 801 .tiocmset = ftdi_tiocmset, 802 .ioctl = ftdi_ioctl, 803 .set_termios = ftdi_set_termios, 804 .break_ctl = ftdi_break_ctl, 805 }; 806 807 808 #define WDR_TIMEOUT 5000 /* default urb timeout */ 809 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 810 811 /* High and low are for DTR, RTS etc etc */ 812 #define HIGH 1 813 #define LOW 0 814 815 /* number of outstanding urbs to prevent userspace DoS from happening */ 816 #define URB_UPPER_LIMIT 42 817 818 /* 819 * *************************************************************************** 820 * Utility functions 821 * *************************************************************************** 822 */ 823 824 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 825 { 826 unsigned short int divisor; 827 /* divisor shifted 3 bits to the left */ 828 int divisor3 = base / 2 / baud; 829 if ((divisor3 & 0x7) == 7) 830 divisor3++; /* round x.7/8 up to x+1 */ 831 divisor = divisor3 >> 3; 832 divisor3 &= 0x7; 833 if (divisor3 == 1) 834 divisor |= 0xc000; 835 else if (divisor3 >= 4) 836 divisor |= 0x4000; 837 else if (divisor3 != 0) 838 divisor |= 0x8000; 839 else if (divisor == 1) 840 divisor = 0; /* special case for maximum baud rate */ 841 return divisor; 842 } 843 844 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 845 { 846 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 847 } 848 849 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 850 { 851 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 852 __u32 divisor; 853 /* divisor shifted 3 bits to the left */ 854 int divisor3 = base / 2 / baud; 855 divisor = divisor3 >> 3; 856 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 857 /* Deal with special cases for highest baud rates. */ 858 if (divisor == 1) 859 divisor = 0; 860 else if (divisor == 0x4001) 861 divisor = 1; 862 return divisor; 863 } 864 865 static __u32 ftdi_232bm_baud_to_divisor(int baud) 866 { 867 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 868 } 869 870 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base) 871 { 872 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 873 __u32 divisor; 874 int divisor3; 875 876 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */ 877 divisor3 = (base / 10 / baud) * 8; 878 879 divisor = divisor3 >> 3; 880 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 881 /* Deal with special cases for highest baud rates. */ 882 if (divisor == 1) 883 divisor = 0; 884 else if (divisor == 0x4001) 885 divisor = 1; 886 /* 887 * Set this bit to turn off a divide by 2.5 on baud rate generator 888 * This enables baud rates up to 12Mbaud but cannot reach below 1200 889 * baud with this bit set 890 */ 891 divisor |= 0x00020000; 892 return divisor; 893 } 894 895 static __u32 ftdi_2232h_baud_to_divisor(int baud) 896 { 897 return ftdi_2232h_baud_base_to_divisor(baud, 120000000); 898 } 899 900 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 901 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 902 903 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 904 unsigned int clear) 905 { 906 struct ftdi_private *priv = usb_get_serial_port_data(port); 907 char *buf; 908 unsigned urb_value; 909 int rv; 910 911 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 912 dbg("%s - DTR|RTS not being set|cleared", __func__); 913 return 0; /* no change */ 914 } 915 916 buf = kmalloc(1, GFP_NOIO); 917 if (!buf) 918 return -ENOMEM; 919 920 clear &= ~set; /* 'set' takes precedence over 'clear' */ 921 urb_value = 0; 922 if (clear & TIOCM_DTR) 923 urb_value |= FTDI_SIO_SET_DTR_LOW; 924 if (clear & TIOCM_RTS) 925 urb_value |= FTDI_SIO_SET_RTS_LOW; 926 if (set & TIOCM_DTR) 927 urb_value |= FTDI_SIO_SET_DTR_HIGH; 928 if (set & TIOCM_RTS) 929 urb_value |= FTDI_SIO_SET_RTS_HIGH; 930 rv = usb_control_msg(port->serial->dev, 931 usb_sndctrlpipe(port->serial->dev, 0), 932 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 933 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 934 urb_value, priv->interface, 935 buf, 0, WDR_TIMEOUT); 936 937 kfree(buf); 938 if (rv < 0) { 939 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 940 __func__, 941 (set & TIOCM_DTR) ? "HIGH" : 942 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 943 (set & TIOCM_RTS) ? "HIGH" : 944 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 945 } else { 946 dbg("%s - DTR %s, RTS %s", __func__, 947 (set & TIOCM_DTR) ? "HIGH" : 948 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 949 (set & TIOCM_RTS) ? "HIGH" : 950 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 951 /* FIXME: locking on last_dtr_rts */ 952 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 953 } 954 return rv; 955 } 956 957 958 static __u32 get_ftdi_divisor(struct tty_struct *tty, 959 struct usb_serial_port *port) 960 { /* get_ftdi_divisor */ 961 struct ftdi_private *priv = usb_get_serial_port_data(port); 962 __u32 div_value = 0; 963 int div_okay = 1; 964 int baud; 965 966 /* 967 * The logic involved in setting the baudrate can be cleanly split into 968 * 3 steps. 969 * 1. Standard baud rates are set in tty->termios->c_cflag 970 * 2. If these are not enough, you can set any speed using alt_speed as 971 * follows: 972 * - set tty->termios->c_cflag speed to B38400 973 * - set your real speed in tty->alt_speed; it gets ignored when 974 * alt_speed==0, (or) 975 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 976 * follows: 977 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 978 * this just sets alt_speed to (HI: 57600, VHI: 115200, 979 * SHI: 230400, WARP: 460800) 980 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 981 * 3. You can also set baud rate by setting custom divisor as follows 982 * - set tty->termios->c_cflag speed to B38400 983 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 984 * follows: 985 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 986 * o custom_divisor set to baud_base / your_new_baudrate 987 * ** Step 3 is done courtesy of code borrowed from serial.c 988 * I should really spend some time and separate + move this common 989 * code to serial.c, it is replicated in nearly every serial driver 990 * you see. 991 */ 992 993 /* 1. Get the baud rate from the tty settings, this observes 994 alt_speed hack */ 995 996 baud = tty_get_baud_rate(tty); 997 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 998 999 /* 2. Observe async-compatible custom_divisor hack, update baudrate 1000 if needed */ 1001 1002 if (baud == 38400 && 1003 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1004 (priv->custom_divisor)) { 1005 baud = priv->baud_base / priv->custom_divisor; 1006 dbg("%s - custom divisor %d sets baud rate to %d", 1007 __func__, priv->custom_divisor, baud); 1008 } 1009 1010 /* 3. Convert baudrate to device-specific divisor */ 1011 1012 if (!baud) 1013 baud = 9600; 1014 switch (priv->chip_type) { 1015 case SIO: /* SIO chip */ 1016 switch (baud) { 1017 case 300: div_value = ftdi_sio_b300; break; 1018 case 600: div_value = ftdi_sio_b600; break; 1019 case 1200: div_value = ftdi_sio_b1200; break; 1020 case 2400: div_value = ftdi_sio_b2400; break; 1021 case 4800: div_value = ftdi_sio_b4800; break; 1022 case 9600: div_value = ftdi_sio_b9600; break; 1023 case 19200: div_value = ftdi_sio_b19200; break; 1024 case 38400: div_value = ftdi_sio_b38400; break; 1025 case 57600: div_value = ftdi_sio_b57600; break; 1026 case 115200: div_value = ftdi_sio_b115200; break; 1027 } /* baud */ 1028 if (div_value == 0) { 1029 dbg("%s - Baudrate (%d) requested is not supported", 1030 __func__, baud); 1031 div_value = ftdi_sio_b9600; 1032 baud = 9600; 1033 div_okay = 0; 1034 } 1035 break; 1036 case FT8U232AM: /* 8U232AM chip */ 1037 if (baud <= 3000000) { 1038 div_value = ftdi_232am_baud_to_divisor(baud); 1039 } else { 1040 dbg("%s - Baud rate too high!", __func__); 1041 baud = 9600; 1042 div_value = ftdi_232am_baud_to_divisor(9600); 1043 div_okay = 0; 1044 } 1045 break; 1046 case FT232BM: /* FT232BM chip */ 1047 case FT2232C: /* FT2232C chip */ 1048 case FT232RL: 1049 if (baud <= 3000000) { 1050 __u16 product_id = le16_to_cpu( 1051 port->serial->dev->descriptor.idProduct); 1052 if (((FTDI_NDI_HUC_PID == product_id) || 1053 (FTDI_NDI_SPECTRA_SCU_PID == product_id) || 1054 (FTDI_NDI_FUTURE_2_PID == product_id) || 1055 (FTDI_NDI_FUTURE_3_PID == product_id) || 1056 (FTDI_NDI_AURORA_SCU_PID == product_id)) && 1057 (baud == 19200)) { 1058 baud = 1200000; 1059 } 1060 div_value = ftdi_232bm_baud_to_divisor(baud); 1061 } else { 1062 dbg("%s - Baud rate too high!", __func__); 1063 div_value = ftdi_232bm_baud_to_divisor(9600); 1064 div_okay = 0; 1065 baud = 9600; 1066 } 1067 break; 1068 case FT2232H: /* FT2232H chip */ 1069 case FT4232H: /* FT4232H chip */ 1070 if ((baud <= 12000000) & (baud >= 1200)) { 1071 div_value = ftdi_2232h_baud_to_divisor(baud); 1072 } else if (baud < 1200) { 1073 div_value = ftdi_232bm_baud_to_divisor(baud); 1074 } else { 1075 dbg("%s - Baud rate too high!", __func__); 1076 div_value = ftdi_232bm_baud_to_divisor(9600); 1077 div_okay = 0; 1078 baud = 9600; 1079 } 1080 break; 1081 } /* priv->chip_type */ 1082 1083 if (div_okay) { 1084 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 1085 __func__, baud, (unsigned long)div_value, 1086 ftdi_chip_name[priv->chip_type]); 1087 } 1088 1089 tty_encode_baud_rate(tty, baud, baud); 1090 return div_value; 1091 } 1092 1093 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 1094 { 1095 struct ftdi_private *priv = usb_get_serial_port_data(port); 1096 char *buf; 1097 __u16 urb_value; 1098 __u16 urb_index; 1099 __u32 urb_index_value; 1100 int rv; 1101 1102 buf = kmalloc(1, GFP_NOIO); 1103 if (!buf) 1104 return -ENOMEM; 1105 1106 urb_index_value = get_ftdi_divisor(tty, port); 1107 urb_value = (__u16)urb_index_value; 1108 urb_index = (__u16)(urb_index_value >> 16); 1109 if (priv->interface) { /* FT2232C */ 1110 urb_index = (__u16)((urb_index << 8) | priv->interface); 1111 } 1112 1113 rv = usb_control_msg(port->serial->dev, 1114 usb_sndctrlpipe(port->serial->dev, 0), 1115 FTDI_SIO_SET_BAUDRATE_REQUEST, 1116 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1117 urb_value, urb_index, 1118 buf, 0, WDR_SHORT_TIMEOUT); 1119 1120 kfree(buf); 1121 return rv; 1122 } 1123 1124 static int write_latency_timer(struct usb_serial_port *port) 1125 { 1126 struct ftdi_private *priv = usb_get_serial_port_data(port); 1127 struct usb_device *udev = port->serial->dev; 1128 char buf[1]; 1129 int rv = 0; 1130 int l = priv->latency; 1131 1132 if (priv->flags & ASYNC_LOW_LATENCY) 1133 l = 1; 1134 1135 dbg("%s: setting latency timer = %i", __func__, l); 1136 1137 rv = usb_control_msg(udev, 1138 usb_sndctrlpipe(udev, 0), 1139 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1140 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1141 l, priv->interface, 1142 buf, 0, WDR_TIMEOUT); 1143 1144 if (rv < 0) 1145 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv); 1146 return rv; 1147 } 1148 1149 static int read_latency_timer(struct usb_serial_port *port) 1150 { 1151 struct ftdi_private *priv = usb_get_serial_port_data(port); 1152 struct usb_device *udev = port->serial->dev; 1153 unsigned short latency = 0; 1154 int rv = 0; 1155 1156 1157 dbg("%s", __func__); 1158 1159 rv = usb_control_msg(udev, 1160 usb_rcvctrlpipe(udev, 0), 1161 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1162 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1163 0, priv->interface, 1164 (char *) &latency, 1, WDR_TIMEOUT); 1165 1166 if (rv < 0) { 1167 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv); 1168 return -EIO; 1169 } 1170 return latency; 1171 } 1172 1173 static int get_serial_info(struct usb_serial_port *port, 1174 struct serial_struct __user *retinfo) 1175 { 1176 struct ftdi_private *priv = usb_get_serial_port_data(port); 1177 struct serial_struct tmp; 1178 1179 if (!retinfo) 1180 return -EFAULT; 1181 memset(&tmp, 0, sizeof(tmp)); 1182 tmp.flags = priv->flags; 1183 tmp.baud_base = priv->baud_base; 1184 tmp.custom_divisor = priv->custom_divisor; 1185 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1186 return -EFAULT; 1187 return 0; 1188 } /* get_serial_info */ 1189 1190 1191 static int set_serial_info(struct tty_struct *tty, 1192 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1193 { /* set_serial_info */ 1194 struct ftdi_private *priv = usb_get_serial_port_data(port); 1195 struct serial_struct new_serial; 1196 struct ftdi_private old_priv; 1197 1198 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1199 return -EFAULT; 1200 1201 lock_kernel(); 1202 old_priv = *priv; 1203 1204 /* Do error checking and permission checking */ 1205 1206 if (!capable(CAP_SYS_ADMIN)) { 1207 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1208 (priv->flags & ~ASYNC_USR_MASK))) { 1209 unlock_kernel(); 1210 return -EPERM; 1211 } 1212 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1213 (new_serial.flags & ASYNC_USR_MASK)); 1214 priv->custom_divisor = new_serial.custom_divisor; 1215 goto check_and_exit; 1216 } 1217 1218 if ((new_serial.baud_base != priv->baud_base) && 1219 (new_serial.baud_base < 9600)) { 1220 unlock_kernel(); 1221 return -EINVAL; 1222 } 1223 1224 /* Make the changes - these are privileged changes! */ 1225 1226 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1227 (new_serial.flags & ASYNC_FLAGS)); 1228 priv->custom_divisor = new_serial.custom_divisor; 1229 1230 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1231 write_latency_timer(port); 1232 1233 check_and_exit: 1234 if ((old_priv.flags & ASYNC_SPD_MASK) != 1235 (priv->flags & ASYNC_SPD_MASK)) { 1236 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1237 tty->alt_speed = 57600; 1238 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1239 tty->alt_speed = 115200; 1240 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1241 tty->alt_speed = 230400; 1242 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1243 tty->alt_speed = 460800; 1244 else 1245 tty->alt_speed = 0; 1246 } 1247 if (((old_priv.flags & ASYNC_SPD_MASK) != 1248 (priv->flags & ASYNC_SPD_MASK)) || 1249 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1250 (old_priv.custom_divisor != priv->custom_divisor))) { 1251 unlock_kernel(); 1252 change_speed(tty, port); 1253 } 1254 else 1255 unlock_kernel(); 1256 return 0; 1257 1258 } /* set_serial_info */ 1259 1260 1261 /* Determine type of FTDI chip based on USB config and descriptor. */ 1262 static void ftdi_determine_type(struct usb_serial_port *port) 1263 { 1264 struct ftdi_private *priv = usb_get_serial_port_data(port); 1265 struct usb_serial *serial = port->serial; 1266 struct usb_device *udev = serial->dev; 1267 unsigned version; 1268 unsigned interfaces; 1269 1270 /* Assume it is not the original SIO device for now. */ 1271 priv->baud_base = 48000000 / 2; 1272 priv->write_offset = 0; 1273 1274 version = le16_to_cpu(udev->descriptor.bcdDevice); 1275 interfaces = udev->actconfig->desc.bNumInterfaces; 1276 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1277 version, interfaces); 1278 if (interfaces > 1) { 1279 int inter; 1280 1281 /* Multiple interfaces.*/ 1282 if (version == 0x0800) { 1283 priv->chip_type = FT4232H; 1284 /* Hi-speed - baud clock runs at 120MHz */ 1285 priv->baud_base = 120000000 / 2; 1286 } else if (version == 0x0700) { 1287 priv->chip_type = FT2232H; 1288 /* Hi-speed - baud clock runs at 120MHz */ 1289 priv->baud_base = 120000000 / 2; 1290 } else 1291 priv->chip_type = FT2232C; 1292 1293 /* Determine interface code. */ 1294 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1295 if (inter == 0) { 1296 priv->interface = INTERFACE_A; 1297 } else if (inter == 1) { 1298 priv->interface = INTERFACE_B; 1299 } else if (inter == 2) { 1300 priv->interface = INTERFACE_C; 1301 } else if (inter == 3) { 1302 priv->interface = INTERFACE_D; 1303 } 1304 /* BM-type devices have a bug where bcdDevice gets set 1305 * to 0x200 when iSerialNumber is 0. */ 1306 if (version < 0x500) { 1307 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1308 __func__); 1309 } 1310 } else if (version < 0x200) { 1311 /* Old device. Assume its the original SIO. */ 1312 priv->chip_type = SIO; 1313 priv->baud_base = 12000000 / 16; 1314 priv->write_offset = 1; 1315 } else if (version < 0x400) { 1316 /* Assume its an FT8U232AM (or FT8U245AM) */ 1317 /* (It might be a BM because of the iSerialNumber bug, 1318 * but it will still work as an AM device.) */ 1319 priv->chip_type = FT8U232AM; 1320 } else if (version < 0x600) { 1321 /* Assume its an FT232BM (or FT245BM) */ 1322 priv->chip_type = FT232BM; 1323 } else { 1324 /* Assume its an FT232R */ 1325 priv->chip_type = FT232RL; 1326 } 1327 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); 1328 } 1329 1330 1331 /* Determine the maximum packet size for the device. This depends on the chip 1332 * type and the USB host capabilities. The value should be obtained from the 1333 * device descriptor as the chip will use the appropriate values for the host.*/ 1334 static void ftdi_set_max_packet_size(struct usb_serial_port *port) 1335 { 1336 struct ftdi_private *priv = usb_get_serial_port_data(port); 1337 struct usb_serial *serial = port->serial; 1338 struct usb_device *udev = serial->dev; 1339 1340 struct usb_interface *interface = serial->interface; 1341 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc; 1342 1343 unsigned num_endpoints; 1344 int i = 0; 1345 1346 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; 1347 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints); 1348 1349 /* NOTE: some customers have programmed FT232R/FT245R devices 1350 * with an endpoint size of 0 - not good. In this case, we 1351 * want to override the endpoint descriptor setting and use a 1352 * value of 64 for wMaxPacketSize */ 1353 for (i = 0; i < num_endpoints; i++) { 1354 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1, 1355 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize); 1356 ep_desc = &interface->cur_altsetting->endpoint[i].desc; 1357 if (ep_desc->wMaxPacketSize == 0) { 1358 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1359 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i); 1360 } 1361 } 1362 1363 /* set max packet size based on descriptor */ 1364 priv->max_packet_size = ep_desc->wMaxPacketSize; 1365 1366 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size); 1367 } 1368 1369 1370 /* 1371 * *************************************************************************** 1372 * Sysfs Attribute 1373 * *************************************************************************** 1374 */ 1375 1376 static ssize_t show_latency_timer(struct device *dev, 1377 struct device_attribute *attr, char *buf) 1378 { 1379 struct usb_serial_port *port = to_usb_serial_port(dev); 1380 struct ftdi_private *priv = usb_get_serial_port_data(port); 1381 if (priv->flags & ASYNC_LOW_LATENCY) 1382 return sprintf(buf, "1\n"); 1383 else 1384 return sprintf(buf, "%i\n", priv->latency); 1385 } 1386 1387 1388 /* Write a new value of the latency timer, in units of milliseconds. */ 1389 static ssize_t store_latency_timer(struct device *dev, 1390 struct device_attribute *attr, const char *valbuf, 1391 size_t count) 1392 { 1393 struct usb_serial_port *port = to_usb_serial_port(dev); 1394 struct ftdi_private *priv = usb_get_serial_port_data(port); 1395 int v = simple_strtoul(valbuf, NULL, 10); 1396 int rv = 0; 1397 1398 priv->latency = v; 1399 rv = write_latency_timer(port); 1400 if (rv < 0) 1401 return -EIO; 1402 return count; 1403 } 1404 1405 /* Write an event character directly to the FTDI register. The ASCII 1406 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1407 static ssize_t store_event_char(struct device *dev, 1408 struct device_attribute *attr, const char *valbuf, size_t count) 1409 { 1410 struct usb_serial_port *port = to_usb_serial_port(dev); 1411 struct ftdi_private *priv = usb_get_serial_port_data(port); 1412 struct usb_device *udev = port->serial->dev; 1413 char buf[1]; 1414 int v = simple_strtoul(valbuf, NULL, 10); 1415 int rv = 0; 1416 1417 dbg("%s: setting event char = %i", __func__, v); 1418 1419 rv = usb_control_msg(udev, 1420 usb_sndctrlpipe(udev, 0), 1421 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1422 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1423 v, priv->interface, 1424 buf, 0, WDR_TIMEOUT); 1425 1426 if (rv < 0) { 1427 dbg("Unable to write event character: %i", rv); 1428 return -EIO; 1429 } 1430 1431 return count; 1432 } 1433 1434 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1435 store_latency_timer); 1436 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1437 1438 static int create_sysfs_attrs(struct usb_serial_port *port) 1439 { 1440 struct ftdi_private *priv = usb_get_serial_port_data(port); 1441 int retval = 0; 1442 1443 dbg("%s", __func__); 1444 1445 /* XXX I've no idea if the original SIO supports the event_char 1446 * sysfs parameter, so I'm playing it safe. */ 1447 if (priv->chip_type != SIO) { 1448 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1449 retval = device_create_file(&port->dev, &dev_attr_event_char); 1450 if ((!retval) && 1451 (priv->chip_type == FT232BM || 1452 priv->chip_type == FT2232C || 1453 priv->chip_type == FT232RL || 1454 priv->chip_type == FT2232H || 1455 priv->chip_type == FT4232H)) { 1456 retval = device_create_file(&port->dev, 1457 &dev_attr_latency_timer); 1458 } 1459 } 1460 return retval; 1461 } 1462 1463 static void remove_sysfs_attrs(struct usb_serial_port *port) 1464 { 1465 struct ftdi_private *priv = usb_get_serial_port_data(port); 1466 1467 dbg("%s", __func__); 1468 1469 /* XXX see create_sysfs_attrs */ 1470 if (priv->chip_type != SIO) { 1471 device_remove_file(&port->dev, &dev_attr_event_char); 1472 if (priv->chip_type == FT232BM || 1473 priv->chip_type == FT2232C || 1474 priv->chip_type == FT232RL || 1475 priv->chip_type == FT2232H || 1476 priv->chip_type == FT4232H) { 1477 device_remove_file(&port->dev, &dev_attr_latency_timer); 1478 } 1479 } 1480 1481 } 1482 1483 /* 1484 * *************************************************************************** 1485 * FTDI driver specific functions 1486 * *************************************************************************** 1487 */ 1488 1489 /* Probe function to check for special devices */ 1490 static int ftdi_sio_probe(struct usb_serial *serial, 1491 const struct usb_device_id *id) 1492 { 1493 struct ftdi_sio_quirk *quirk = 1494 (struct ftdi_sio_quirk *)id->driver_info; 1495 1496 if (quirk && quirk->probe) { 1497 int ret = quirk->probe(serial); 1498 if (ret != 0) 1499 return ret; 1500 } 1501 1502 usb_set_serial_data(serial, (void *)id->driver_info); 1503 1504 return 0; 1505 } 1506 1507 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1508 { 1509 struct ftdi_private *priv; 1510 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1511 1512 1513 dbg("%s", __func__); 1514 1515 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1516 if (!priv) { 1517 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, 1518 sizeof(struct ftdi_private)); 1519 return -ENOMEM; 1520 } 1521 1522 kref_init(&priv->kref); 1523 spin_lock_init(&priv->rx_lock); 1524 spin_lock_init(&priv->tx_lock); 1525 init_waitqueue_head(&priv->delta_msr_wait); 1526 /* This will push the characters through immediately rather 1527 than queue a task to deliver them */ 1528 priv->flags = ASYNC_LOW_LATENCY; 1529 1530 if (quirk && quirk->port_probe) 1531 quirk->port_probe(priv); 1532 1533 /* Increase the size of read buffers */ 1534 kfree(port->bulk_in_buffer); 1535 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1536 if (!port->bulk_in_buffer) { 1537 kfree(priv); 1538 return -ENOMEM; 1539 } 1540 if (port->read_urb) { 1541 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1542 port->read_urb->transfer_buffer_length = BUFSZ; 1543 } 1544 1545 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1546 priv->port = port; 1547 1548 /* Free port's existing write urb and transfer buffer. */ 1549 if (port->write_urb) { 1550 usb_free_urb(port->write_urb); 1551 port->write_urb = NULL; 1552 } 1553 kfree(port->bulk_out_buffer); 1554 port->bulk_out_buffer = NULL; 1555 1556 usb_set_serial_port_data(port, priv); 1557 1558 ftdi_determine_type(port); 1559 ftdi_set_max_packet_size(port); 1560 read_latency_timer(port); 1561 create_sysfs_attrs(port); 1562 return 0; 1563 } 1564 1565 /* Setup for the USB-UIRT device, which requires hardwired 1566 * baudrate (38400 gets mapped to 312500) */ 1567 /* Called from usbserial:serial_probe */ 1568 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1569 { 1570 dbg("%s", __func__); 1571 1572 priv->flags |= ASYNC_SPD_CUST; 1573 priv->custom_divisor = 77; 1574 priv->force_baud = 38400; 1575 } /* ftdi_USB_UIRT_setup */ 1576 1577 /* Setup for the HE-TIRA1 device, which requires hardwired 1578 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1579 1580 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1581 { 1582 dbg("%s", __func__); 1583 1584 priv->flags |= ASYNC_SPD_CUST; 1585 priv->custom_divisor = 240; 1586 priv->force_baud = 38400; 1587 priv->force_rtscts = 1; 1588 } /* ftdi_HE_TIRA1_setup */ 1589 1590 /* 1591 * Module parameter to control latency timer for NDI FTDI-based USB devices. 1592 * If this value is not set in modprobe.conf.local its value will be set to 1ms. 1593 */ 1594 static int ndi_latency_timer = 1; 1595 1596 /* Setup for the NDI FTDI-based USB devices, which requires hardwired 1597 * baudrate (19200 gets mapped to 1200000). 1598 * 1599 * Called from usbserial:serial_probe. 1600 */ 1601 static int ftdi_NDI_device_setup(struct usb_serial *serial) 1602 { 1603 struct usb_device *udev = serial->dev; 1604 int latency = ndi_latency_timer; 1605 int rv = 0; 1606 char buf[1]; 1607 1608 if (latency == 0) 1609 latency = 1; 1610 if (latency > 99) 1611 latency = 99; 1612 1613 dbg("%s setting NDI device latency to %d", __func__, latency); 1614 dev_info(&udev->dev, "NDI device with a latency value of %d", latency); 1615 1616 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 1617 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1618 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1619 latency, 0, buf, 0, WDR_TIMEOUT); 1620 return 0; 1621 } 1622 1623 /* 1624 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1625 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1626 * userspace using openocd. 1627 */ 1628 static int ftdi_jtag_probe(struct usb_serial *serial) 1629 { 1630 struct usb_device *udev = serial->dev; 1631 struct usb_interface *interface = serial->interface; 1632 1633 dbg("%s", __func__); 1634 1635 if (interface == udev->actconfig->interface[0]) { 1636 dev_info(&udev->dev, 1637 "Ignoring serial port reserved for JTAG\n"); 1638 return -ENODEV; 1639 } 1640 1641 return 0; 1642 } 1643 1644 /* 1645 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1646 * We have to correct it if we want to read from it. 1647 */ 1648 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1649 { 1650 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1651 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1652 1653 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1654 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1655 dev_info(&serial->dev->dev, 1656 "Fixing invalid wMaxPacketSize on read pipe\n"); 1657 } 1658 1659 return 0; 1660 } 1661 1662 static void ftdi_sio_priv_release(struct kref *k) 1663 { 1664 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); 1665 1666 kfree(priv); 1667 } 1668 1669 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1670 { 1671 struct ftdi_private *priv = usb_get_serial_port_data(port); 1672 1673 dbg("%s", __func__); 1674 1675 remove_sysfs_attrs(port); 1676 1677 kref_put(&priv->kref, ftdi_sio_priv_release); 1678 1679 return 0; 1680 } 1681 1682 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) 1683 { /* ftdi_open */ 1684 struct usb_device *dev = port->serial->dev; 1685 struct ftdi_private *priv = usb_get_serial_port_data(port); 1686 unsigned long flags; 1687 1688 int result = 0; 1689 char buf[1]; /* Needed for the usb_control_msg I think */ 1690 1691 dbg("%s", __func__); 1692 1693 spin_lock_irqsave(&priv->tx_lock, flags); 1694 priv->tx_bytes = 0; 1695 spin_unlock_irqrestore(&priv->tx_lock, flags); 1696 spin_lock_irqsave(&priv->rx_lock, flags); 1697 priv->rx_bytes = 0; 1698 spin_unlock_irqrestore(&priv->rx_lock, flags); 1699 1700 if (tty) 1701 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1702 1703 write_latency_timer(port); 1704 1705 /* No error checking for this (will get errors later anyway) */ 1706 /* See ftdi_sio.h for description of what is reset */ 1707 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1708 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1709 FTDI_SIO_RESET_SIO, 1710 priv->interface, buf, 0, WDR_TIMEOUT); 1711 1712 /* Termios defaults are set by usb_serial_init. We don't change 1713 port->tty->termios - this would lose speed settings, etc. 1714 This is same behaviour as serial.c/rs_open() - Kuba */ 1715 1716 /* ftdi_set_termios will send usb control messages */ 1717 if (tty) 1718 ftdi_set_termios(tty, port, tty->termios); 1719 1720 /* Not throttled */ 1721 spin_lock_irqsave(&priv->rx_lock, flags); 1722 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1723 spin_unlock_irqrestore(&priv->rx_lock, flags); 1724 1725 /* Start reading from the device */ 1726 priv->rx_processed = 0; 1727 usb_fill_bulk_urb(port->read_urb, dev, 1728 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1729 port->read_urb->transfer_buffer, 1730 port->read_urb->transfer_buffer_length, 1731 ftdi_read_bulk_callback, port); 1732 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1733 if (result) 1734 dev_err(&port->dev, 1735 "%s - failed submitting read urb, error %d\n", 1736 __func__, result); 1737 else 1738 kref_get(&priv->kref); 1739 1740 return result; 1741 } /* ftdi_open */ 1742 1743 1744 static void ftdi_dtr_rts(struct usb_serial_port *port, int on) 1745 { 1746 struct ftdi_private *priv = usb_get_serial_port_data(port); 1747 char buf[1]; 1748 1749 mutex_lock(&port->serial->disc_mutex); 1750 if (!port->serial->disconnected) { 1751 /* Disable flow control */ 1752 if (!on && usb_control_msg(port->serial->dev, 1753 usb_sndctrlpipe(port->serial->dev, 0), 1754 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1755 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1756 0, priv->interface, buf, 0, 1757 WDR_TIMEOUT) < 0) { 1758 dev_err(&port->dev, "error from flowcontrol urb\n"); 1759 } 1760 /* drop RTS and DTR */ 1761 if (on) 1762 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1763 else 1764 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1765 } 1766 mutex_unlock(&port->serial->disc_mutex); 1767 } 1768 1769 /* 1770 * usbserial:__serial_close only calls ftdi_close if the point is open 1771 * 1772 * This only gets called when it is the last close 1773 * 1774 * 1775 */ 1776 1777 static void ftdi_close(struct usb_serial_port *port) 1778 { /* ftdi_close */ 1779 struct ftdi_private *priv = usb_get_serial_port_data(port); 1780 1781 dbg("%s", __func__); 1782 1783 1784 /* cancel any scheduled reading */ 1785 cancel_delayed_work_sync(&priv->rx_work); 1786 1787 /* shutdown our bulk read */ 1788 usb_kill_urb(port->read_urb); 1789 kref_put(&priv->kref, ftdi_sio_priv_release); 1790 } /* ftdi_close */ 1791 1792 1793 1794 /* The SIO requires the first byte to have: 1795 * B0 1 1796 * B1 0 1797 * B2..7 length of message excluding byte 0 1798 * 1799 * The new devices do not require this byte 1800 */ 1801 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1802 const unsigned char *buf, int count) 1803 { /* ftdi_write */ 1804 struct ftdi_private *priv = usb_get_serial_port_data(port); 1805 struct urb *urb; 1806 unsigned char *buffer; 1807 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1808 int status; 1809 int transfer_size; 1810 unsigned long flags; 1811 1812 dbg("%s port %d, %d bytes", __func__, port->number, count); 1813 1814 if (count == 0) { 1815 dbg("write request of 0 bytes"); 1816 return 0; 1817 } 1818 spin_lock_irqsave(&priv->tx_lock, flags); 1819 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1820 spin_unlock_irqrestore(&priv->tx_lock, flags); 1821 dbg("%s - write limit hit\n", __func__); 1822 return 0; 1823 } 1824 priv->tx_outstanding_urbs++; 1825 spin_unlock_irqrestore(&priv->tx_lock, flags); 1826 1827 data_offset = priv->write_offset; 1828 dbg("data_offset set to %d", data_offset); 1829 1830 /* Determine total transfer size */ 1831 transfer_size = count; 1832 if (data_offset > 0) { 1833 /* Original sio needs control bytes too... */ 1834 transfer_size += (data_offset * 1835 ((count + (priv->max_packet_size - 1 - data_offset)) / 1836 (priv->max_packet_size - data_offset))); 1837 } 1838 1839 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1840 if (!buffer) { 1841 dev_err(&port->dev, 1842 "%s ran out of kernel memory for urb ...\n", __func__); 1843 count = -ENOMEM; 1844 goto error_no_buffer; 1845 } 1846 1847 urb = usb_alloc_urb(0, GFP_ATOMIC); 1848 if (!urb) { 1849 dev_err(&port->dev, "%s - no more free urbs\n", __func__); 1850 count = -ENOMEM; 1851 goto error_no_urb; 1852 } 1853 1854 /* Copy data */ 1855 if (data_offset > 0) { 1856 /* Original sio requires control byte at start of 1857 each packet. */ 1858 int user_pktsz = priv->max_packet_size - data_offset; 1859 int todo = count; 1860 unsigned char *first_byte = buffer; 1861 const unsigned char *current_position = buf; 1862 1863 while (todo > 0) { 1864 if (user_pktsz > todo) 1865 user_pktsz = todo; 1866 /* Write the control byte at the front of the packet*/ 1867 *first_byte = 1 | ((user_pktsz) << 2); 1868 /* Copy data for packet */ 1869 memcpy(first_byte + data_offset, 1870 current_position, user_pktsz); 1871 first_byte += user_pktsz + data_offset; 1872 current_position += user_pktsz; 1873 todo -= user_pktsz; 1874 } 1875 } else { 1876 /* No control byte required. */ 1877 /* Copy in the data to send */ 1878 memcpy(buffer, buf, count); 1879 } 1880 1881 usb_serial_debug_data(debug, &port->dev, __func__, 1882 transfer_size, buffer); 1883 1884 /* fill the buffer and send it */ 1885 usb_fill_bulk_urb(urb, port->serial->dev, 1886 usb_sndbulkpipe(port->serial->dev, 1887 port->bulk_out_endpointAddress), 1888 buffer, transfer_size, 1889 ftdi_write_bulk_callback, port); 1890 1891 status = usb_submit_urb(urb, GFP_ATOMIC); 1892 if (status) { 1893 dev_err(&port->dev, 1894 "%s - failed submitting write urb, error %d\n", 1895 __func__, status); 1896 count = status; 1897 goto error; 1898 } else { 1899 spin_lock_irqsave(&priv->tx_lock, flags); 1900 priv->tx_outstanding_bytes += count; 1901 priv->tx_bytes += count; 1902 spin_unlock_irqrestore(&priv->tx_lock, flags); 1903 } 1904 1905 /* we are done with this urb, so let the host driver 1906 * really free it when it is finished with it */ 1907 usb_free_urb(urb); 1908 1909 dbg("%s write returning: %d", __func__, count); 1910 return count; 1911 error: 1912 usb_free_urb(urb); 1913 error_no_urb: 1914 kfree(buffer); 1915 error_no_buffer: 1916 spin_lock_irqsave(&priv->tx_lock, flags); 1917 priv->tx_outstanding_urbs--; 1918 spin_unlock_irqrestore(&priv->tx_lock, flags); 1919 return count; 1920 } /* ftdi_write */ 1921 1922 1923 /* This function may get called when the device is closed */ 1924 1925 static void ftdi_write_bulk_callback(struct urb *urb) 1926 { 1927 unsigned long flags; 1928 struct usb_serial_port *port = urb->context; 1929 struct ftdi_private *priv; 1930 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1931 unsigned long countback; 1932 int status = urb->status; 1933 1934 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1935 kfree(urb->transfer_buffer); 1936 1937 dbg("%s - port %d", __func__, port->number); 1938 1939 priv = usb_get_serial_port_data(port); 1940 if (!priv) { 1941 dbg("%s - bad port private data pointer - exiting", __func__); 1942 return; 1943 } 1944 /* account for transferred data */ 1945 countback = urb->actual_length; 1946 data_offset = priv->write_offset; 1947 if (data_offset > 0) { 1948 /* Subtract the control bytes */ 1949 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size)); 1950 } 1951 spin_lock_irqsave(&priv->tx_lock, flags); 1952 --priv->tx_outstanding_urbs; 1953 priv->tx_outstanding_bytes -= countback; 1954 spin_unlock_irqrestore(&priv->tx_lock, flags); 1955 1956 if (status) { 1957 dbg("nonzero write bulk status received: %d", status); 1958 return; 1959 } 1960 1961 usb_serial_port_softint(port); 1962 } /* ftdi_write_bulk_callback */ 1963 1964 1965 static int ftdi_write_room(struct tty_struct *tty) 1966 { 1967 struct usb_serial_port *port = tty->driver_data; 1968 struct ftdi_private *priv = usb_get_serial_port_data(port); 1969 int room; 1970 unsigned long flags; 1971 1972 dbg("%s - port %d", __func__, port->number); 1973 1974 spin_lock_irqsave(&priv->tx_lock, flags); 1975 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1976 /* 1977 * We really can take anything the user throws at us 1978 * but let's pick a nice big number to tell the tty 1979 * layer that we have lots of free space 1980 */ 1981 room = 2048; 1982 } else { 1983 room = 0; 1984 } 1985 spin_unlock_irqrestore(&priv->tx_lock, flags); 1986 return room; 1987 } 1988 1989 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1990 { 1991 struct usb_serial_port *port = tty->driver_data; 1992 struct ftdi_private *priv = usb_get_serial_port_data(port); 1993 int buffered; 1994 unsigned long flags; 1995 1996 dbg("%s - port %d", __func__, port->number); 1997 1998 spin_lock_irqsave(&priv->tx_lock, flags); 1999 buffered = (int)priv->tx_outstanding_bytes; 2000 spin_unlock_irqrestore(&priv->tx_lock, flags); 2001 if (buffered < 0) { 2002 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", 2003 __func__); 2004 buffered = 0; 2005 } 2006 return buffered; 2007 } 2008 2009 static void ftdi_read_bulk_callback(struct urb *urb) 2010 { 2011 struct usb_serial_port *port = urb->context; 2012 struct tty_struct *tty; 2013 struct ftdi_private *priv; 2014 unsigned long countread; 2015 unsigned long flags; 2016 int status = urb->status; 2017 2018 if (urb->number_of_packets > 0) { 2019 dev_err(&port->dev, "%s transfer_buffer_length %d " 2020 "actual_length %d number of packets %d\n", __func__, 2021 urb->transfer_buffer_length, 2022 urb->actual_length, urb->number_of_packets); 2023 dev_err(&port->dev, "%s transfer_flags %x\n", __func__, 2024 urb->transfer_flags); 2025 } 2026 2027 dbg("%s - port %d", __func__, port->number); 2028 2029 if (port->port.count <= 0) 2030 return; 2031 2032 tty = tty_port_tty_get(&port->port); 2033 if (!tty) { 2034 dbg("%s - bad tty pointer - exiting", __func__); 2035 return; 2036 } 2037 2038 priv = usb_get_serial_port_data(port); 2039 if (!priv) { 2040 dbg("%s - bad port private data pointer - exiting", __func__); 2041 goto out; 2042 } 2043 2044 if (urb != port->read_urb) 2045 dev_err(&port->dev, "%s - Not my urb!\n", __func__); 2046 2047 if (status) { 2048 /* This will happen at close every time so it is a dbg not an 2049 err */ 2050 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 2051 goto out; 2052 } 2053 2054 /* count data bytes, but not status bytes */ 2055 countread = urb->actual_length; 2056 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size); 2057 spin_lock_irqsave(&priv->rx_lock, flags); 2058 priv->rx_bytes += countread; 2059 spin_unlock_irqrestore(&priv->rx_lock, flags); 2060 2061 ftdi_process_read(&priv->rx_work.work); 2062 out: 2063 tty_kref_put(tty); 2064 } /* ftdi_read_bulk_callback */ 2065 2066 2067 static void ftdi_process_read(struct work_struct *work) 2068 { /* ftdi_process_read */ 2069 struct ftdi_private *priv = 2070 container_of(work, struct ftdi_private, rx_work.work); 2071 struct usb_serial_port *port = priv->port; 2072 struct urb *urb; 2073 struct tty_struct *tty; 2074 char error_flag; 2075 unsigned char *data; 2076 2077 int i; 2078 int result; 2079 int need_flip; 2080 int packet_offset; 2081 unsigned long flags; 2082 2083 dbg("%s - port %d", __func__, port->number); 2084 2085 if (port->port.count <= 0) 2086 return; 2087 2088 tty = tty_port_tty_get(&port->port); 2089 if (!tty) { 2090 dbg("%s - bad tty pointer - exiting", __func__); 2091 return; 2092 } 2093 2094 priv = usb_get_serial_port_data(port); 2095 if (!priv) { 2096 dbg("%s - bad port private data pointer - exiting", __func__); 2097 goto out; 2098 } 2099 2100 urb = port->read_urb; 2101 if (!urb) { 2102 dbg("%s - bad read_urb pointer - exiting", __func__); 2103 goto out; 2104 } 2105 2106 data = urb->transfer_buffer; 2107 2108 if (priv->rx_processed) { 2109 dbg("%s - already processed: %d bytes, %d remain", __func__, 2110 priv->rx_processed, 2111 urb->actual_length - priv->rx_processed); 2112 } else { 2113 /* The first two bytes of every read packet are status */ 2114 if (urb->actual_length > 2) 2115 usb_serial_debug_data(debug, &port->dev, __func__, 2116 urb->actual_length, data); 2117 else 2118 dbg("Status only: %03oo %03oo", data[0], data[1]); 2119 } 2120 2121 2122 /* TO DO -- check for hung up line and handle appropriately: */ 2123 /* send hangup */ 2124 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 2125 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 2126 2127 need_flip = 0; 2128 for (packet_offset = priv->rx_processed; 2129 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) { 2130 int length; 2131 2132 /* Compare new line status to the old one, signal if different/ 2133 N.B. packet may be processed more than once, but differences 2134 are only processed once. */ 2135 char new_status = data[packet_offset + 0] & 2136 FTDI_STATUS_B0_MASK; 2137 if (new_status != priv->prev_status) { 2138 priv->diff_status |= 2139 new_status ^ priv->prev_status; 2140 wake_up_interruptible(&priv->delta_msr_wait); 2141 priv->prev_status = new_status; 2142 } 2143 2144 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2; 2145 if (length < 0) { 2146 dev_err(&port->dev, "%s - bad packet length: %d\n", 2147 __func__, length+2); 2148 length = 0; 2149 } 2150 2151 if (priv->rx_flags & THROTTLED) { 2152 dbg("%s - throttled", __func__); 2153 break; 2154 } 2155 if (tty_buffer_request_room(tty, length) < length) { 2156 /* break out & wait for throttling/unthrottling to 2157 happen */ 2158 dbg("%s - receive room low", __func__); 2159 break; 2160 } 2161 2162 /* Handle errors and break */ 2163 error_flag = TTY_NORMAL; 2164 /* Although the device uses a bitmask and hence can have 2165 multiple errors on a packet - the order here sets the 2166 priority the error is returned to the tty layer */ 2167 2168 if (data[packet_offset+1] & FTDI_RS_OE) { 2169 error_flag = TTY_OVERRUN; 2170 dbg("OVERRRUN error"); 2171 } 2172 if (data[packet_offset+1] & FTDI_RS_BI) { 2173 error_flag = TTY_BREAK; 2174 dbg("BREAK received"); 2175 usb_serial_handle_break(port); 2176 } 2177 if (data[packet_offset+1] & FTDI_RS_PE) { 2178 error_flag = TTY_PARITY; 2179 dbg("PARITY error"); 2180 } 2181 if (data[packet_offset+1] & FTDI_RS_FE) { 2182 error_flag = TTY_FRAME; 2183 dbg("FRAMING error"); 2184 } 2185 if (length > 0) { 2186 for (i = 2; i < length+2; i++) { 2187 /* Note that the error flag is duplicated for 2188 every character received since we don't know 2189 which character it applied to */ 2190 if (!usb_serial_handle_sysrq_char(tty, port, 2191 data[packet_offset + i])) 2192 tty_insert_flip_char(tty, 2193 data[packet_offset + i], 2194 error_flag); 2195 } 2196 need_flip = 1; 2197 } 2198 2199 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 2200 /* if a parity error is detected you get status packets forever 2201 until a character is sent without a parity error. 2202 This doesn't work well since the application receives a 2203 never ending stream of bad data - even though new data 2204 hasn't been sent. Therefore I (bill) have taken this out. 2205 However - this might make sense for framing errors and so on 2206 so I am leaving the code in for now. 2207 */ 2208 else { 2209 if (error_flag != TTY_NORMAL) { 2210 dbg("error_flag is not normal"); 2211 /* In this case it is just status - if that is 2212 an error send a bad character */ 2213 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 2214 tty_flip_buffer_push(tty); 2215 tty_insert_flip_char(tty, 0xff, error_flag); 2216 need_flip = 1; 2217 } 2218 } 2219 #endif 2220 } /* "for(packet_offset=0..." */ 2221 2222 /* Low latency */ 2223 if (need_flip) 2224 tty_flip_buffer_push(tty); 2225 2226 if (packet_offset < urb->actual_length) { 2227 /* not completely processed - record progress */ 2228 priv->rx_processed = packet_offset; 2229 dbg("%s - incomplete, %d bytes processed, %d remain", 2230 __func__, packet_offset, 2231 urb->actual_length - packet_offset); 2232 /* check if we were throttled while processing */ 2233 spin_lock_irqsave(&priv->rx_lock, flags); 2234 if (priv->rx_flags & THROTTLED) { 2235 priv->rx_flags |= ACTUALLY_THROTTLED; 2236 spin_unlock_irqrestore(&priv->rx_lock, flags); 2237 dbg("%s - deferring remainder until unthrottled", 2238 __func__); 2239 goto out; 2240 } 2241 spin_unlock_irqrestore(&priv->rx_lock, flags); 2242 /* if the port is closed stop trying to read */ 2243 if (port->port.count > 0) 2244 /* delay processing of remainder */ 2245 schedule_delayed_work(&priv->rx_work, 1); 2246 else 2247 dbg("%s - port is closed", __func__); 2248 goto out; 2249 } 2250 2251 /* urb is completely processed */ 2252 priv->rx_processed = 0; 2253 2254 /* if the port is closed stop trying to read */ 2255 if (port->port.count > 0) { 2256 /* Continue trying to always read */ 2257 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2258 usb_rcvbulkpipe(port->serial->dev, 2259 port->bulk_in_endpointAddress), 2260 port->read_urb->transfer_buffer, 2261 port->read_urb->transfer_buffer_length, 2262 ftdi_read_bulk_callback, port); 2263 2264 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2265 if (result) 2266 dev_err(&port->dev, 2267 "%s - failed resubmitting read urb, error %d\n", 2268 __func__, result); 2269 } 2270 out: 2271 tty_kref_put(tty); 2272 } /* ftdi_process_read */ 2273 2274 2275 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2276 { 2277 struct usb_serial_port *port = tty->driver_data; 2278 struct ftdi_private *priv = usb_get_serial_port_data(port); 2279 __u16 urb_value = 0; 2280 char buf[1]; 2281 2282 /* break_state = -1 to turn on break, and 0 to turn off break */ 2283 /* see drivers/char/tty_io.c to see it used */ 2284 /* last_set_data_urb_value NEVER has the break bit set in it */ 2285 2286 if (break_state) 2287 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2288 else 2289 urb_value = priv->last_set_data_urb_value; 2290 2291 if (usb_control_msg(port->serial->dev, 2292 usb_sndctrlpipe(port->serial->dev, 0), 2293 FTDI_SIO_SET_DATA_REQUEST, 2294 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2295 urb_value , priv->interface, 2296 buf, 0, WDR_TIMEOUT) < 0) { 2297 dev_err(&port->dev, "%s FAILED to enable/disable break state " 2298 "(state was %d)\n", __func__, break_state); 2299 } 2300 2301 dbg("%s break state is %d - urb is %d", __func__, 2302 break_state, urb_value); 2303 2304 } 2305 2306 2307 /* old_termios contains the original termios settings and tty->termios contains 2308 * the new setting to be used 2309 * WARNING: set_termios calls this with old_termios in kernel space 2310 */ 2311 2312 static void ftdi_set_termios(struct tty_struct *tty, 2313 struct usb_serial_port *port, struct ktermios *old_termios) 2314 { /* ftdi_termios */ 2315 struct usb_device *dev = port->serial->dev; 2316 struct ftdi_private *priv = usb_get_serial_port_data(port); 2317 struct ktermios *termios = tty->termios; 2318 unsigned int cflag = termios->c_cflag; 2319 __u16 urb_value; /* will hold the new flags */ 2320 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2321 2322 /* Added for xon/xoff support */ 2323 unsigned int iflag = termios->c_iflag; 2324 unsigned char vstop; 2325 unsigned char vstart; 2326 2327 dbg("%s", __func__); 2328 2329 /* Force baud rate if this device requires it, unless it is set to 2330 B0. */ 2331 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2332 dbg("%s: forcing baud rate for this device", __func__); 2333 tty_encode_baud_rate(tty, priv->force_baud, 2334 priv->force_baud); 2335 } 2336 2337 /* Force RTS-CTS if this device requires it. */ 2338 if (priv->force_rtscts) { 2339 dbg("%s: forcing rtscts for this device", __func__); 2340 termios->c_cflag |= CRTSCTS; 2341 } 2342 2343 cflag = termios->c_cflag; 2344 2345 /* FIXME -For this cut I don't care if the line is really changing or 2346 not - so just do the change regardless - should be able to 2347 compare old_termios and tty->termios */ 2348 /* NOTE These routines can get interrupted by 2349 ftdi_sio_read_bulk_callback - need to examine what this means - 2350 don't see any problems yet */ 2351 2352 /* Set number of data bits, parity, stop bits */ 2353 2354 termios->c_cflag &= ~CMSPAR; 2355 2356 urb_value = 0; 2357 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2358 FTDI_SIO_SET_DATA_STOP_BITS_1); 2359 urb_value |= (cflag & PARENB ? 2360 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2361 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2362 FTDI_SIO_SET_DATA_PARITY_NONE); 2363 if (cflag & CSIZE) { 2364 switch (cflag & CSIZE) { 2365 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2366 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2367 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2368 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2369 default: 2370 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); 2371 } 2372 } 2373 2374 /* This is needed by the break command since it uses the same command 2375 - but is or'ed with this value */ 2376 priv->last_set_data_urb_value = urb_value; 2377 2378 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2379 FTDI_SIO_SET_DATA_REQUEST, 2380 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2381 urb_value , priv->interface, 2382 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2383 dev_err(&port->dev, "%s FAILED to set " 2384 "databits/stopbits/parity\n", __func__); 2385 } 2386 2387 /* Now do the baudrate */ 2388 if ((cflag & CBAUD) == B0) { 2389 /* Disable flow control */ 2390 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2391 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2392 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2393 0, priv->interface, 2394 buf, 0, WDR_TIMEOUT) < 0) { 2395 dev_err(&port->dev, 2396 "%s error from disable flowcontrol urb\n", 2397 __func__); 2398 } 2399 /* Drop RTS and DTR */ 2400 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2401 } else { 2402 /* set the baudrate determined before */ 2403 if (change_speed(tty, port)) 2404 dev_err(&port->dev, "%s urb failed to set baudrate\n", 2405 __func__); 2406 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2407 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2408 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2409 } 2410 2411 /* Set flow control */ 2412 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2413 if (cflag & CRTSCTS) { 2414 dbg("%s Setting to CRTSCTS flow control", __func__); 2415 if (usb_control_msg(dev, 2416 usb_sndctrlpipe(dev, 0), 2417 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2418 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2419 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2420 buf, 0, WDR_TIMEOUT) < 0) { 2421 dev_err(&port->dev, 2422 "urb failed to set to rts/cts flow control\n"); 2423 } 2424 2425 } else { 2426 /* 2427 * Xon/Xoff code 2428 * 2429 * Check the IXOFF status in the iflag component of the 2430 * termios structure. If IXOFF is not set, the pre-xon/xoff 2431 * code is executed. 2432 */ 2433 if (iflag & IXOFF) { 2434 dbg("%s request to enable xonxoff iflag=%04x", 2435 __func__, iflag); 2436 /* Try to enable the XON/XOFF on the ftdi_sio 2437 * Set the vstart and vstop -- could have been done up 2438 * above where a lot of other dereferencing is done but 2439 * that would be very inefficient as vstart and vstop 2440 * are not always needed. 2441 */ 2442 vstart = termios->c_cc[VSTART]; 2443 vstop = termios->c_cc[VSTOP]; 2444 urb_value = (vstop << 8) | (vstart); 2445 2446 if (usb_control_msg(dev, 2447 usb_sndctrlpipe(dev, 0), 2448 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2449 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2450 urb_value , (FTDI_SIO_XON_XOFF_HS 2451 | priv->interface), 2452 buf, 0, WDR_TIMEOUT) < 0) { 2453 dev_err(&port->dev, "urb failed to set to " 2454 "xon/xoff flow control\n"); 2455 } 2456 } else { 2457 /* else clause to only run if cflag ! CRTSCTS and iflag 2458 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2459 * stack - not by device */ 2460 dbg("%s Turning off hardware flow control", __func__); 2461 if (usb_control_msg(dev, 2462 usb_sndctrlpipe(dev, 0), 2463 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2464 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2465 0, priv->interface, 2466 buf, 0, WDR_TIMEOUT) < 0) { 2467 dev_err(&port->dev, 2468 "urb failed to clear flow control\n"); 2469 } 2470 } 2471 2472 } 2473 return; 2474 } 2475 2476 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2477 { 2478 struct usb_serial_port *port = tty->driver_data; 2479 struct ftdi_private *priv = usb_get_serial_port_data(port); 2480 unsigned char buf[2]; 2481 int ret; 2482 2483 dbg("%s TIOCMGET", __func__); 2484 switch (priv->chip_type) { 2485 case SIO: 2486 /* Request the status from the device */ 2487 ret = usb_control_msg(port->serial->dev, 2488 usb_rcvctrlpipe(port->serial->dev, 0), 2489 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2490 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2491 0, 0, 2492 buf, 1, WDR_TIMEOUT); 2493 if (ret < 0) 2494 return ret; 2495 break; 2496 case FT8U232AM: 2497 case FT232BM: 2498 case FT2232C: 2499 case FT232RL: 2500 case FT2232H: 2501 case FT4232H: 2502 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2503 value) - in the same format as the data returned from the in 2504 point */ 2505 ret = usb_control_msg(port->serial->dev, 2506 usb_rcvctrlpipe(port->serial->dev, 0), 2507 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2508 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2509 0, priv->interface, 2510 buf, 2, WDR_TIMEOUT); 2511 if (ret < 0) 2512 return ret; 2513 break; 2514 default: 2515 return -EFAULT; 2516 } 2517 2518 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2519 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2520 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2521 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2522 priv->last_dtr_rts; 2523 } 2524 2525 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2526 unsigned int set, unsigned int clear) 2527 { 2528 struct usb_serial_port *port = tty->driver_data; 2529 dbg("%s TIOCMSET", __func__); 2530 return update_mctrl(port, set, clear); 2531 } 2532 2533 2534 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2535 unsigned int cmd, unsigned long arg) 2536 { 2537 struct usb_serial_port *port = tty->driver_data; 2538 struct ftdi_private *priv = usb_get_serial_port_data(port); 2539 2540 dbg("%s cmd 0x%04x", __func__, cmd); 2541 2542 /* Based on code from acm.c and others */ 2543 switch (cmd) { 2544 2545 case TIOCGSERIAL: /* gets serial port data */ 2546 return get_serial_info(port, 2547 (struct serial_struct __user *) arg); 2548 2549 case TIOCSSERIAL: /* sets serial port data */ 2550 return set_serial_info(tty, port, 2551 (struct serial_struct __user *) arg); 2552 2553 /* 2554 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2555 * - mask passed in arg for lines of interest 2556 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2557 * Caller should use TIOCGICOUNT to see which one it was. 2558 * 2559 * This code is borrowed from linux/drivers/char/serial.c 2560 */ 2561 case TIOCMIWAIT: 2562 while (priv != NULL) { 2563 interruptible_sleep_on(&priv->delta_msr_wait); 2564 /* see if a signal did it */ 2565 if (signal_pending(current)) 2566 return -ERESTARTSYS; 2567 else { 2568 char diff = priv->diff_status; 2569 2570 if (diff == 0) 2571 return -EIO; /* no change => error */ 2572 2573 /* Consume all events */ 2574 priv->diff_status = 0; 2575 2576 /* Return 0 if caller wanted to know about 2577 these bits */ 2578 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2579 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2580 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2581 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2582 return 0; 2583 } 2584 /* 2585 * Otherwise caller can't care less about what 2586 * happened,and so we continue to wait for more 2587 * events. 2588 */ 2589 } 2590 } 2591 return 0; 2592 default: 2593 break; 2594 } 2595 /* This is not necessarily an error - turns out the higher layers 2596 * will do some ioctls themselves (see comment above) 2597 */ 2598 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2599 return -ENOIOCTLCMD; 2600 } 2601 2602 static void ftdi_throttle(struct tty_struct *tty) 2603 { 2604 struct usb_serial_port *port = tty->driver_data; 2605 struct ftdi_private *priv = usb_get_serial_port_data(port); 2606 unsigned long flags; 2607 2608 dbg("%s - port %d", __func__, port->number); 2609 2610 spin_lock_irqsave(&priv->rx_lock, flags); 2611 priv->rx_flags |= THROTTLED; 2612 spin_unlock_irqrestore(&priv->rx_lock, flags); 2613 } 2614 2615 2616 static void ftdi_unthrottle(struct tty_struct *tty) 2617 { 2618 struct usb_serial_port *port = tty->driver_data; 2619 struct ftdi_private *priv = usb_get_serial_port_data(port); 2620 int actually_throttled; 2621 unsigned long flags; 2622 2623 dbg("%s - port %d", __func__, port->number); 2624 2625 spin_lock_irqsave(&priv->rx_lock, flags); 2626 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2627 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2628 spin_unlock_irqrestore(&priv->rx_lock, flags); 2629 2630 if (actually_throttled) 2631 schedule_delayed_work(&priv->rx_work, 0); 2632 } 2633 2634 static int __init ftdi_init(void) 2635 { 2636 int retval; 2637 2638 dbg("%s", __func__); 2639 if (vendor > 0 && product > 0) { 2640 /* Add user specified VID/PID to reserved element of table. */ 2641 int i; 2642 for (i = 0; id_table_combined[i].idVendor; i++) 2643 ; 2644 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2645 id_table_combined[i].idVendor = vendor; 2646 id_table_combined[i].idProduct = product; 2647 } 2648 retval = usb_serial_register(&ftdi_sio_device); 2649 if (retval) 2650 goto failed_sio_register; 2651 retval = usb_register(&ftdi_driver); 2652 if (retval) 2653 goto failed_usb_register; 2654 2655 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 2656 DRIVER_DESC "\n"); 2657 return 0; 2658 failed_usb_register: 2659 usb_serial_deregister(&ftdi_sio_device); 2660 failed_sio_register: 2661 return retval; 2662 } 2663 2664 2665 static void __exit ftdi_exit(void) 2666 { 2667 2668 dbg("%s", __func__); 2669 2670 usb_deregister(&ftdi_driver); 2671 usb_serial_deregister(&ftdi_sio_device); 2672 2673 } 2674 2675 2676 module_init(ftdi_init); 2677 module_exit(ftdi_exit); 2678 2679 MODULE_AUTHOR(DRIVER_AUTHOR); 2680 MODULE_DESCRIPTION(DRIVER_DESC); 2681 MODULE_LICENSE("GPL"); 2682 2683 module_param(debug, bool, S_IRUGO | S_IWUSR); 2684 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2685 module_param(vendor, ushort, 0); 2686 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2687 __MODULE_STRING(FTDI_VID)")"); 2688 module_param(product, ushort, 0); 2689 MODULE_PARM_DESC(product, "User specified product ID"); 2690 2691 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR); 2692 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override"); 2693