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 { }, /* Optional parameter entry */ 702 { } /* Terminating entry */ 703 }; 704 705 MODULE_DEVICE_TABLE(usb, id_table_combined); 706 707 static struct usb_driver ftdi_driver = { 708 .name = "ftdi_sio", 709 .probe = usb_serial_probe, 710 .disconnect = usb_serial_disconnect, 711 .id_table = id_table_combined, 712 .no_dynamic_id = 1, 713 }; 714 715 static const char *ftdi_chip_name[] = { 716 [SIO] = "SIO", /* the serial part of FT8U100AX */ 717 [FT8U232AM] = "FT8U232AM", 718 [FT232BM] = "FT232BM", 719 [FT2232C] = "FT2232C", 720 [FT232RL] = "FT232RL", 721 [FT2232H] = "FT2232H", 722 [FT4232H] = "FT4232H" 723 }; 724 725 726 /* Constants for read urb and write urb */ 727 #define BUFSZ 512 728 729 /* rx_flags */ 730 #define THROTTLED 0x01 731 #define ACTUALLY_THROTTLED 0x02 732 733 /* Used for TIOCMIWAIT */ 734 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 735 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 736 /* End TIOCMIWAIT */ 737 738 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 739 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 740 741 /* function prototypes for a FTDI serial converter */ 742 static int ftdi_sio_probe(struct usb_serial *serial, 743 const struct usb_device_id *id); 744 static int ftdi_sio_port_probe(struct usb_serial_port *port); 745 static int ftdi_sio_port_remove(struct usb_serial_port *port); 746 static int ftdi_open(struct tty_struct *tty, 747 struct usb_serial_port *port, struct file *filp); 748 static void ftdi_close(struct usb_serial_port *port); 749 static void ftdi_dtr_rts(struct usb_serial_port *port, int on); 750 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 751 const unsigned char *buf, int count); 752 static int ftdi_write_room(struct tty_struct *tty); 753 static int ftdi_chars_in_buffer(struct tty_struct *tty); 754 static void ftdi_write_bulk_callback(struct urb *urb); 755 static void ftdi_read_bulk_callback(struct urb *urb); 756 static void ftdi_process_read(struct work_struct *work); 757 static void ftdi_set_termios(struct tty_struct *tty, 758 struct usb_serial_port *port, struct ktermios *old); 759 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 760 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 761 unsigned int set, unsigned int clear); 762 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 763 unsigned int cmd, unsigned long arg); 764 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 765 static void ftdi_throttle(struct tty_struct *tty); 766 static void ftdi_unthrottle(struct tty_struct *tty); 767 768 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 769 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 770 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 771 static __u32 ftdi_232bm_baud_to_divisor(int baud); 772 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base); 773 static __u32 ftdi_2232h_baud_to_divisor(int baud); 774 775 static struct usb_serial_driver ftdi_sio_device = { 776 .driver = { 777 .owner = THIS_MODULE, 778 .name = "ftdi_sio", 779 }, 780 .description = "FTDI USB Serial Device", 781 .usb_driver = &ftdi_driver , 782 .id_table = id_table_combined, 783 .num_ports = 1, 784 .probe = ftdi_sio_probe, 785 .port_probe = ftdi_sio_port_probe, 786 .port_remove = ftdi_sio_port_remove, 787 .open = ftdi_open, 788 .close = ftdi_close, 789 .dtr_rts = ftdi_dtr_rts, 790 .throttle = ftdi_throttle, 791 .unthrottle = ftdi_unthrottle, 792 .write = ftdi_write, 793 .write_room = ftdi_write_room, 794 .chars_in_buffer = ftdi_chars_in_buffer, 795 .read_bulk_callback = ftdi_read_bulk_callback, 796 .write_bulk_callback = ftdi_write_bulk_callback, 797 .tiocmget = ftdi_tiocmget, 798 .tiocmset = ftdi_tiocmset, 799 .ioctl = ftdi_ioctl, 800 .set_termios = ftdi_set_termios, 801 .break_ctl = ftdi_break_ctl, 802 }; 803 804 805 #define WDR_TIMEOUT 5000 /* default urb timeout */ 806 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 807 808 /* High and low are for DTR, RTS etc etc */ 809 #define HIGH 1 810 #define LOW 0 811 812 /* number of outstanding urbs to prevent userspace DoS from happening */ 813 #define URB_UPPER_LIMIT 42 814 815 /* 816 * *************************************************************************** 817 * Utility functions 818 * *************************************************************************** 819 */ 820 821 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 822 { 823 unsigned short int divisor; 824 /* divisor shifted 3 bits to the left */ 825 int divisor3 = base / 2 / baud; 826 if ((divisor3 & 0x7) == 7) 827 divisor3++; /* round x.7/8 up to x+1 */ 828 divisor = divisor3 >> 3; 829 divisor3 &= 0x7; 830 if (divisor3 == 1) 831 divisor |= 0xc000; 832 else if (divisor3 >= 4) 833 divisor |= 0x4000; 834 else if (divisor3 != 0) 835 divisor |= 0x8000; 836 else if (divisor == 1) 837 divisor = 0; /* special case for maximum baud rate */ 838 return divisor; 839 } 840 841 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 842 { 843 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 844 } 845 846 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 847 { 848 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 849 __u32 divisor; 850 /* divisor shifted 3 bits to the left */ 851 int divisor3 = base / 2 / baud; 852 divisor = divisor3 >> 3; 853 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 854 /* Deal with special cases for highest baud rates. */ 855 if (divisor == 1) 856 divisor = 0; 857 else if (divisor == 0x4001) 858 divisor = 1; 859 return divisor; 860 } 861 862 static __u32 ftdi_232bm_baud_to_divisor(int baud) 863 { 864 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 865 } 866 867 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base) 868 { 869 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 870 __u32 divisor; 871 int divisor3; 872 873 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */ 874 divisor3 = (base / 10 / baud) * 8; 875 876 divisor = divisor3 >> 3; 877 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 878 /* Deal with special cases for highest baud rates. */ 879 if (divisor == 1) 880 divisor = 0; 881 else if (divisor == 0x4001) 882 divisor = 1; 883 /* 884 * Set this bit to turn off a divide by 2.5 on baud rate generator 885 * This enables baud rates up to 12Mbaud but cannot reach below 1200 886 * baud with this bit set 887 */ 888 divisor |= 0x00020000; 889 return divisor; 890 } 891 892 static __u32 ftdi_2232h_baud_to_divisor(int baud) 893 { 894 return ftdi_2232h_baud_base_to_divisor(baud, 120000000); 895 } 896 897 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 898 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 899 900 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 901 unsigned int clear) 902 { 903 struct ftdi_private *priv = usb_get_serial_port_data(port); 904 char *buf; 905 unsigned urb_value; 906 int rv; 907 908 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 909 dbg("%s - DTR|RTS not being set|cleared", __func__); 910 return 0; /* no change */ 911 } 912 913 buf = kmalloc(1, GFP_NOIO); 914 if (!buf) 915 return -ENOMEM; 916 917 clear &= ~set; /* 'set' takes precedence over 'clear' */ 918 urb_value = 0; 919 if (clear & TIOCM_DTR) 920 urb_value |= FTDI_SIO_SET_DTR_LOW; 921 if (clear & TIOCM_RTS) 922 urb_value |= FTDI_SIO_SET_RTS_LOW; 923 if (set & TIOCM_DTR) 924 urb_value |= FTDI_SIO_SET_DTR_HIGH; 925 if (set & TIOCM_RTS) 926 urb_value |= FTDI_SIO_SET_RTS_HIGH; 927 rv = usb_control_msg(port->serial->dev, 928 usb_sndctrlpipe(port->serial->dev, 0), 929 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 930 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 931 urb_value, priv->interface, 932 buf, 0, WDR_TIMEOUT); 933 934 kfree(buf); 935 if (rv < 0) { 936 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 937 __func__, 938 (set & TIOCM_DTR) ? "HIGH" : 939 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 940 (set & TIOCM_RTS) ? "HIGH" : 941 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 942 } else { 943 dbg("%s - DTR %s, RTS %s", __func__, 944 (set & TIOCM_DTR) ? "HIGH" : 945 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 946 (set & TIOCM_RTS) ? "HIGH" : 947 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 948 /* FIXME: locking on last_dtr_rts */ 949 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 950 } 951 return rv; 952 } 953 954 955 static __u32 get_ftdi_divisor(struct tty_struct *tty, 956 struct usb_serial_port *port) 957 { /* get_ftdi_divisor */ 958 struct ftdi_private *priv = usb_get_serial_port_data(port); 959 __u32 div_value = 0; 960 int div_okay = 1; 961 int baud; 962 963 /* 964 * The logic involved in setting the baudrate can be cleanly split into 965 * 3 steps. 966 * 1. Standard baud rates are set in tty->termios->c_cflag 967 * 2. If these are not enough, you can set any speed using alt_speed as 968 * follows: 969 * - set tty->termios->c_cflag speed to B38400 970 * - set your real speed in tty->alt_speed; it gets ignored when 971 * alt_speed==0, (or) 972 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 973 * follows: 974 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 975 * this just sets alt_speed to (HI: 57600, VHI: 115200, 976 * SHI: 230400, WARP: 460800) 977 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 978 * 3. You can also set baud rate by setting custom divisor as follows 979 * - set tty->termios->c_cflag speed to B38400 980 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 981 * follows: 982 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 983 * o custom_divisor set to baud_base / your_new_baudrate 984 * ** Step 3 is done courtesy of code borrowed from serial.c 985 * I should really spend some time and separate + move this common 986 * code to serial.c, it is replicated in nearly every serial driver 987 * you see. 988 */ 989 990 /* 1. Get the baud rate from the tty settings, this observes 991 alt_speed hack */ 992 993 baud = tty_get_baud_rate(tty); 994 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 995 996 /* 2. Observe async-compatible custom_divisor hack, update baudrate 997 if needed */ 998 999 if (baud == 38400 && 1000 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1001 (priv->custom_divisor)) { 1002 baud = priv->baud_base / priv->custom_divisor; 1003 dbg("%s - custom divisor %d sets baud rate to %d", 1004 __func__, priv->custom_divisor, baud); 1005 } 1006 1007 /* 3. Convert baudrate to device-specific divisor */ 1008 1009 if (!baud) 1010 baud = 9600; 1011 switch (priv->chip_type) { 1012 case SIO: /* SIO chip */ 1013 switch (baud) { 1014 case 300: div_value = ftdi_sio_b300; break; 1015 case 600: div_value = ftdi_sio_b600; break; 1016 case 1200: div_value = ftdi_sio_b1200; break; 1017 case 2400: div_value = ftdi_sio_b2400; break; 1018 case 4800: div_value = ftdi_sio_b4800; break; 1019 case 9600: div_value = ftdi_sio_b9600; break; 1020 case 19200: div_value = ftdi_sio_b19200; break; 1021 case 38400: div_value = ftdi_sio_b38400; break; 1022 case 57600: div_value = ftdi_sio_b57600; break; 1023 case 115200: div_value = ftdi_sio_b115200; break; 1024 } /* baud */ 1025 if (div_value == 0) { 1026 dbg("%s - Baudrate (%d) requested is not supported", 1027 __func__, baud); 1028 div_value = ftdi_sio_b9600; 1029 baud = 9600; 1030 div_okay = 0; 1031 } 1032 break; 1033 case FT8U232AM: /* 8U232AM chip */ 1034 if (baud <= 3000000) { 1035 div_value = ftdi_232am_baud_to_divisor(baud); 1036 } else { 1037 dbg("%s - Baud rate too high!", __func__); 1038 baud = 9600; 1039 div_value = ftdi_232am_baud_to_divisor(9600); 1040 div_okay = 0; 1041 } 1042 break; 1043 case FT232BM: /* FT232BM chip */ 1044 case FT2232C: /* FT2232C chip */ 1045 case FT232RL: 1046 if (baud <= 3000000) { 1047 __u16 product_id = le16_to_cpu( 1048 port->serial->dev->descriptor.idProduct); 1049 if (((FTDI_NDI_HUC_PID == product_id) || 1050 (FTDI_NDI_SPECTRA_SCU_PID == product_id) || 1051 (FTDI_NDI_FUTURE_2_PID == product_id) || 1052 (FTDI_NDI_FUTURE_3_PID == product_id) || 1053 (FTDI_NDI_AURORA_SCU_PID == product_id)) && 1054 (baud == 19200)) { 1055 baud = 1200000; 1056 } 1057 div_value = ftdi_232bm_baud_to_divisor(baud); 1058 } else { 1059 dbg("%s - Baud rate too high!", __func__); 1060 div_value = ftdi_232bm_baud_to_divisor(9600); 1061 div_okay = 0; 1062 baud = 9600; 1063 } 1064 break; 1065 case FT2232H: /* FT2232H chip */ 1066 case FT4232H: /* FT4232H chip */ 1067 if ((baud <= 12000000) & (baud >= 1200)) { 1068 div_value = ftdi_2232h_baud_to_divisor(baud); 1069 } else if (baud < 1200) { 1070 div_value = ftdi_232bm_baud_to_divisor(baud); 1071 } else { 1072 dbg("%s - Baud rate too high!", __func__); 1073 div_value = ftdi_232bm_baud_to_divisor(9600); 1074 div_okay = 0; 1075 baud = 9600; 1076 } 1077 break; 1078 } /* priv->chip_type */ 1079 1080 if (div_okay) { 1081 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 1082 __func__, baud, (unsigned long)div_value, 1083 ftdi_chip_name[priv->chip_type]); 1084 } 1085 1086 tty_encode_baud_rate(tty, baud, baud); 1087 return div_value; 1088 } 1089 1090 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 1091 { 1092 struct ftdi_private *priv = usb_get_serial_port_data(port); 1093 char *buf; 1094 __u16 urb_value; 1095 __u16 urb_index; 1096 __u32 urb_index_value; 1097 int rv; 1098 1099 buf = kmalloc(1, GFP_NOIO); 1100 if (!buf) 1101 return -ENOMEM; 1102 1103 urb_index_value = get_ftdi_divisor(tty, port); 1104 urb_value = (__u16)urb_index_value; 1105 urb_index = (__u16)(urb_index_value >> 16); 1106 if (priv->interface) { /* FT2232C */ 1107 urb_index = (__u16)((urb_index << 8) | priv->interface); 1108 } 1109 1110 rv = usb_control_msg(port->serial->dev, 1111 usb_sndctrlpipe(port->serial->dev, 0), 1112 FTDI_SIO_SET_BAUDRATE_REQUEST, 1113 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1114 urb_value, urb_index, 1115 buf, 0, WDR_SHORT_TIMEOUT); 1116 1117 kfree(buf); 1118 return rv; 1119 } 1120 1121 static int write_latency_timer(struct usb_serial_port *port) 1122 { 1123 struct ftdi_private *priv = usb_get_serial_port_data(port); 1124 struct usb_device *udev = port->serial->dev; 1125 char buf[1]; 1126 int rv = 0; 1127 int l = priv->latency; 1128 1129 if (priv->flags & ASYNC_LOW_LATENCY) 1130 l = 1; 1131 1132 dbg("%s: setting latency timer = %i", __func__, l); 1133 1134 rv = usb_control_msg(udev, 1135 usb_sndctrlpipe(udev, 0), 1136 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1137 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1138 l, priv->interface, 1139 buf, 0, WDR_TIMEOUT); 1140 1141 if (rv < 0) 1142 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv); 1143 return rv; 1144 } 1145 1146 static int read_latency_timer(struct usb_serial_port *port) 1147 { 1148 struct ftdi_private *priv = usb_get_serial_port_data(port); 1149 struct usb_device *udev = port->serial->dev; 1150 unsigned short latency = 0; 1151 int rv = 0; 1152 1153 1154 dbg("%s", __func__); 1155 1156 rv = usb_control_msg(udev, 1157 usb_rcvctrlpipe(udev, 0), 1158 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1159 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1160 0, priv->interface, 1161 (char *) &latency, 1, WDR_TIMEOUT); 1162 1163 if (rv < 0) { 1164 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv); 1165 return -EIO; 1166 } 1167 return latency; 1168 } 1169 1170 static int get_serial_info(struct usb_serial_port *port, 1171 struct serial_struct __user *retinfo) 1172 { 1173 struct ftdi_private *priv = usb_get_serial_port_data(port); 1174 struct serial_struct tmp; 1175 1176 if (!retinfo) 1177 return -EFAULT; 1178 memset(&tmp, 0, sizeof(tmp)); 1179 tmp.flags = priv->flags; 1180 tmp.baud_base = priv->baud_base; 1181 tmp.custom_divisor = priv->custom_divisor; 1182 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1183 return -EFAULT; 1184 return 0; 1185 } /* get_serial_info */ 1186 1187 1188 static int set_serial_info(struct tty_struct *tty, 1189 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1190 { /* set_serial_info */ 1191 struct ftdi_private *priv = usb_get_serial_port_data(port); 1192 struct serial_struct new_serial; 1193 struct ftdi_private old_priv; 1194 1195 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1196 return -EFAULT; 1197 1198 lock_kernel(); 1199 old_priv = *priv; 1200 1201 /* Do error checking and permission checking */ 1202 1203 if (!capable(CAP_SYS_ADMIN)) { 1204 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1205 (priv->flags & ~ASYNC_USR_MASK))) { 1206 unlock_kernel(); 1207 return -EPERM; 1208 } 1209 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1210 (new_serial.flags & ASYNC_USR_MASK)); 1211 priv->custom_divisor = new_serial.custom_divisor; 1212 goto check_and_exit; 1213 } 1214 1215 if ((new_serial.baud_base != priv->baud_base) && 1216 (new_serial.baud_base < 9600)) { 1217 unlock_kernel(); 1218 return -EINVAL; 1219 } 1220 1221 /* Make the changes - these are privileged changes! */ 1222 1223 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1224 (new_serial.flags & ASYNC_FLAGS)); 1225 priv->custom_divisor = new_serial.custom_divisor; 1226 1227 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1228 write_latency_timer(port); 1229 1230 check_and_exit: 1231 if ((old_priv.flags & ASYNC_SPD_MASK) != 1232 (priv->flags & ASYNC_SPD_MASK)) { 1233 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1234 tty->alt_speed = 57600; 1235 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1236 tty->alt_speed = 115200; 1237 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1238 tty->alt_speed = 230400; 1239 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1240 tty->alt_speed = 460800; 1241 else 1242 tty->alt_speed = 0; 1243 } 1244 if (((old_priv.flags & ASYNC_SPD_MASK) != 1245 (priv->flags & ASYNC_SPD_MASK)) || 1246 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1247 (old_priv.custom_divisor != priv->custom_divisor))) { 1248 unlock_kernel(); 1249 change_speed(tty, port); 1250 } 1251 else 1252 unlock_kernel(); 1253 return 0; 1254 1255 } /* set_serial_info */ 1256 1257 1258 /* Determine type of FTDI chip based on USB config and descriptor. */ 1259 static void ftdi_determine_type(struct usb_serial_port *port) 1260 { 1261 struct ftdi_private *priv = usb_get_serial_port_data(port); 1262 struct usb_serial *serial = port->serial; 1263 struct usb_device *udev = serial->dev; 1264 unsigned version; 1265 unsigned interfaces; 1266 1267 /* Assume it is not the original SIO device for now. */ 1268 priv->baud_base = 48000000 / 2; 1269 priv->write_offset = 0; 1270 1271 version = le16_to_cpu(udev->descriptor.bcdDevice); 1272 interfaces = udev->actconfig->desc.bNumInterfaces; 1273 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1274 version, interfaces); 1275 if (interfaces > 1) { 1276 int inter; 1277 1278 /* Multiple interfaces.*/ 1279 if (version == 0x0800) { 1280 priv->chip_type = FT4232H; 1281 /* Hi-speed - baud clock runs at 120MHz */ 1282 priv->baud_base = 120000000 / 2; 1283 } else if (version == 0x0700) { 1284 priv->chip_type = FT2232H; 1285 /* Hi-speed - baud clock runs at 120MHz */ 1286 priv->baud_base = 120000000 / 2; 1287 } else 1288 priv->chip_type = FT2232C; 1289 1290 /* Determine interface code. */ 1291 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1292 if (inter == 0) { 1293 priv->interface = INTERFACE_A; 1294 } else if (inter == 1) { 1295 priv->interface = INTERFACE_B; 1296 } else if (inter == 2) { 1297 priv->interface = INTERFACE_C; 1298 } else if (inter == 3) { 1299 priv->interface = INTERFACE_D; 1300 } 1301 /* BM-type devices have a bug where bcdDevice gets set 1302 * to 0x200 when iSerialNumber is 0. */ 1303 if (version < 0x500) { 1304 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1305 __func__); 1306 } 1307 } else if (version < 0x200) { 1308 /* Old device. Assume its the original SIO. */ 1309 priv->chip_type = SIO; 1310 priv->baud_base = 12000000 / 16; 1311 priv->write_offset = 1; 1312 } else if (version < 0x400) { 1313 /* Assume its an FT8U232AM (or FT8U245AM) */ 1314 /* (It might be a BM because of the iSerialNumber bug, 1315 * but it will still work as an AM device.) */ 1316 priv->chip_type = FT8U232AM; 1317 } else if (version < 0x600) { 1318 /* Assume its an FT232BM (or FT245BM) */ 1319 priv->chip_type = FT232BM; 1320 } else { 1321 /* Assume its an FT232R */ 1322 priv->chip_type = FT232RL; 1323 } 1324 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); 1325 } 1326 1327 1328 /* Determine the maximum packet size for the device. This depends on the chip 1329 * type and the USB host capabilities. The value should be obtained from the 1330 * device descriptor as the chip will use the appropriate values for the host.*/ 1331 static void ftdi_set_max_packet_size(struct usb_serial_port *port) 1332 { 1333 struct ftdi_private *priv = usb_get_serial_port_data(port); 1334 struct usb_serial *serial = port->serial; 1335 struct usb_device *udev = serial->dev; 1336 1337 struct usb_interface *interface = serial->interface; 1338 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc; 1339 1340 unsigned num_endpoints; 1341 int i = 0; 1342 1343 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; 1344 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints); 1345 1346 /* NOTE: some customers have programmed FT232R/FT245R devices 1347 * with an endpoint size of 0 - not good. In this case, we 1348 * want to override the endpoint descriptor setting and use a 1349 * value of 64 for wMaxPacketSize */ 1350 for (i = 0; i < num_endpoints; i++) { 1351 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1, 1352 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize); 1353 ep_desc = &interface->cur_altsetting->endpoint[i].desc; 1354 if (ep_desc->wMaxPacketSize == 0) { 1355 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1356 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i); 1357 } 1358 } 1359 1360 /* set max packet size based on descriptor */ 1361 priv->max_packet_size = ep_desc->wMaxPacketSize; 1362 1363 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size); 1364 } 1365 1366 1367 /* 1368 * *************************************************************************** 1369 * Sysfs Attribute 1370 * *************************************************************************** 1371 */ 1372 1373 static ssize_t show_latency_timer(struct device *dev, 1374 struct device_attribute *attr, char *buf) 1375 { 1376 struct usb_serial_port *port = to_usb_serial_port(dev); 1377 struct ftdi_private *priv = usb_get_serial_port_data(port); 1378 if (priv->flags & ASYNC_LOW_LATENCY) 1379 return sprintf(buf, "1\n"); 1380 else 1381 return sprintf(buf, "%i\n", priv->latency); 1382 } 1383 1384 1385 /* Write a new value of the latency timer, in units of milliseconds. */ 1386 static ssize_t store_latency_timer(struct device *dev, 1387 struct device_attribute *attr, const char *valbuf, 1388 size_t count) 1389 { 1390 struct usb_serial_port *port = to_usb_serial_port(dev); 1391 struct ftdi_private *priv = usb_get_serial_port_data(port); 1392 int v = simple_strtoul(valbuf, NULL, 10); 1393 int rv = 0; 1394 1395 priv->latency = v; 1396 rv = write_latency_timer(port); 1397 if (rv < 0) 1398 return -EIO; 1399 return count; 1400 } 1401 1402 /* Write an event character directly to the FTDI register. The ASCII 1403 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1404 static ssize_t store_event_char(struct device *dev, 1405 struct device_attribute *attr, const char *valbuf, size_t count) 1406 { 1407 struct usb_serial_port *port = to_usb_serial_port(dev); 1408 struct ftdi_private *priv = usb_get_serial_port_data(port); 1409 struct usb_device *udev = port->serial->dev; 1410 char buf[1]; 1411 int v = simple_strtoul(valbuf, NULL, 10); 1412 int rv = 0; 1413 1414 dbg("%s: setting event char = %i", __func__, v); 1415 1416 rv = usb_control_msg(udev, 1417 usb_sndctrlpipe(udev, 0), 1418 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1419 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1420 v, priv->interface, 1421 buf, 0, WDR_TIMEOUT); 1422 1423 if (rv < 0) { 1424 dbg("Unable to write event character: %i", rv); 1425 return -EIO; 1426 } 1427 1428 return count; 1429 } 1430 1431 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1432 store_latency_timer); 1433 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1434 1435 static int create_sysfs_attrs(struct usb_serial_port *port) 1436 { 1437 struct ftdi_private *priv = usb_get_serial_port_data(port); 1438 int retval = 0; 1439 1440 dbg("%s", __func__); 1441 1442 /* XXX I've no idea if the original SIO supports the event_char 1443 * sysfs parameter, so I'm playing it safe. */ 1444 if (priv->chip_type != SIO) { 1445 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1446 retval = device_create_file(&port->dev, &dev_attr_event_char); 1447 if ((!retval) && 1448 (priv->chip_type == FT232BM || 1449 priv->chip_type == FT2232C || 1450 priv->chip_type == FT232RL || 1451 priv->chip_type == FT2232H || 1452 priv->chip_type == FT4232H)) { 1453 retval = device_create_file(&port->dev, 1454 &dev_attr_latency_timer); 1455 } 1456 } 1457 return retval; 1458 } 1459 1460 static void remove_sysfs_attrs(struct usb_serial_port *port) 1461 { 1462 struct ftdi_private *priv = usb_get_serial_port_data(port); 1463 1464 dbg("%s", __func__); 1465 1466 /* XXX see create_sysfs_attrs */ 1467 if (priv->chip_type != SIO) { 1468 device_remove_file(&port->dev, &dev_attr_event_char); 1469 if (priv->chip_type == FT232BM || 1470 priv->chip_type == FT2232C || 1471 priv->chip_type == FT232RL || 1472 priv->chip_type == FT2232H || 1473 priv->chip_type == FT4232H) { 1474 device_remove_file(&port->dev, &dev_attr_latency_timer); 1475 } 1476 } 1477 1478 } 1479 1480 /* 1481 * *************************************************************************** 1482 * FTDI driver specific functions 1483 * *************************************************************************** 1484 */ 1485 1486 /* Probe function to check for special devices */ 1487 static int ftdi_sio_probe(struct usb_serial *serial, 1488 const struct usb_device_id *id) 1489 { 1490 struct ftdi_sio_quirk *quirk = 1491 (struct ftdi_sio_quirk *)id->driver_info; 1492 1493 if (quirk && quirk->probe) { 1494 int ret = quirk->probe(serial); 1495 if (ret != 0) 1496 return ret; 1497 } 1498 1499 usb_set_serial_data(serial, (void *)id->driver_info); 1500 1501 return 0; 1502 } 1503 1504 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1505 { 1506 struct ftdi_private *priv; 1507 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1508 1509 1510 dbg("%s", __func__); 1511 1512 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1513 if (!priv) { 1514 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, 1515 sizeof(struct ftdi_private)); 1516 return -ENOMEM; 1517 } 1518 1519 kref_init(&priv->kref); 1520 spin_lock_init(&priv->rx_lock); 1521 spin_lock_init(&priv->tx_lock); 1522 init_waitqueue_head(&priv->delta_msr_wait); 1523 /* This will push the characters through immediately rather 1524 than queue a task to deliver them */ 1525 priv->flags = ASYNC_LOW_LATENCY; 1526 1527 if (quirk && quirk->port_probe) 1528 quirk->port_probe(priv); 1529 1530 /* Increase the size of read buffers */ 1531 kfree(port->bulk_in_buffer); 1532 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1533 if (!port->bulk_in_buffer) { 1534 kfree(priv); 1535 return -ENOMEM; 1536 } 1537 if (port->read_urb) { 1538 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1539 port->read_urb->transfer_buffer_length = BUFSZ; 1540 } 1541 1542 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1543 priv->port = port; 1544 1545 /* Free port's existing write urb and transfer buffer. */ 1546 if (port->write_urb) { 1547 usb_free_urb(port->write_urb); 1548 port->write_urb = NULL; 1549 } 1550 kfree(port->bulk_out_buffer); 1551 port->bulk_out_buffer = NULL; 1552 1553 usb_set_serial_port_data(port, priv); 1554 1555 ftdi_determine_type(port); 1556 ftdi_set_max_packet_size(port); 1557 read_latency_timer(port); 1558 create_sysfs_attrs(port); 1559 return 0; 1560 } 1561 1562 /* Setup for the USB-UIRT device, which requires hardwired 1563 * baudrate (38400 gets mapped to 312500) */ 1564 /* Called from usbserial:serial_probe */ 1565 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1566 { 1567 dbg("%s", __func__); 1568 1569 priv->flags |= ASYNC_SPD_CUST; 1570 priv->custom_divisor = 77; 1571 priv->force_baud = 38400; 1572 } /* ftdi_USB_UIRT_setup */ 1573 1574 /* Setup for the HE-TIRA1 device, which requires hardwired 1575 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1576 1577 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1578 { 1579 dbg("%s", __func__); 1580 1581 priv->flags |= ASYNC_SPD_CUST; 1582 priv->custom_divisor = 240; 1583 priv->force_baud = 38400; 1584 priv->force_rtscts = 1; 1585 } /* ftdi_HE_TIRA1_setup */ 1586 1587 /* 1588 * Module parameter to control latency timer for NDI FTDI-based USB devices. 1589 * If this value is not set in modprobe.conf.local its value will be set to 1ms. 1590 */ 1591 static int ndi_latency_timer = 1; 1592 1593 /* Setup for the NDI FTDI-based USB devices, which requires hardwired 1594 * baudrate (19200 gets mapped to 1200000). 1595 * 1596 * Called from usbserial:serial_probe. 1597 */ 1598 static int ftdi_NDI_device_setup(struct usb_serial *serial) 1599 { 1600 struct usb_device *udev = serial->dev; 1601 int latency = ndi_latency_timer; 1602 int rv = 0; 1603 char buf[1]; 1604 1605 if (latency == 0) 1606 latency = 1; 1607 if (latency > 99) 1608 latency = 99; 1609 1610 dbg("%s setting NDI device latency to %d", __func__, latency); 1611 dev_info(&udev->dev, "NDI device with a latency value of %d", latency); 1612 1613 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 1614 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1615 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1616 latency, 0, buf, 0, WDR_TIMEOUT); 1617 return 0; 1618 } 1619 1620 /* 1621 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1622 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1623 * userspace using openocd. 1624 */ 1625 static int ftdi_jtag_probe(struct usb_serial *serial) 1626 { 1627 struct usb_device *udev = serial->dev; 1628 struct usb_interface *interface = serial->interface; 1629 1630 dbg("%s", __func__); 1631 1632 if (interface == udev->actconfig->interface[0]) { 1633 dev_info(&udev->dev, 1634 "Ignoring serial port reserved for JTAG\n"); 1635 return -ENODEV; 1636 } 1637 1638 return 0; 1639 } 1640 1641 /* 1642 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1643 * We have to correct it if we want to read from it. 1644 */ 1645 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1646 { 1647 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1648 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1649 1650 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1651 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1652 dev_info(&serial->dev->dev, 1653 "Fixing invalid wMaxPacketSize on read pipe\n"); 1654 } 1655 1656 return 0; 1657 } 1658 1659 static void ftdi_sio_priv_release(struct kref *k) 1660 { 1661 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); 1662 1663 kfree(priv); 1664 } 1665 1666 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1667 { 1668 struct ftdi_private *priv = usb_get_serial_port_data(port); 1669 1670 dbg("%s", __func__); 1671 1672 remove_sysfs_attrs(port); 1673 1674 kref_put(&priv->kref, ftdi_sio_priv_release); 1675 1676 return 0; 1677 } 1678 1679 static int ftdi_open(struct tty_struct *tty, 1680 struct usb_serial_port *port, struct file *filp) 1681 { /* ftdi_open */ 1682 struct usb_device *dev = port->serial->dev; 1683 struct ftdi_private *priv = usb_get_serial_port_data(port); 1684 unsigned long flags; 1685 1686 int result = 0; 1687 char buf[1]; /* Needed for the usb_control_msg I think */ 1688 1689 dbg("%s", __func__); 1690 1691 spin_lock_irqsave(&priv->tx_lock, flags); 1692 priv->tx_bytes = 0; 1693 spin_unlock_irqrestore(&priv->tx_lock, flags); 1694 spin_lock_irqsave(&priv->rx_lock, flags); 1695 priv->rx_bytes = 0; 1696 spin_unlock_irqrestore(&priv->rx_lock, flags); 1697 1698 if (tty) 1699 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1700 1701 write_latency_timer(port); 1702 1703 /* No error checking for this (will get errors later anyway) */ 1704 /* See ftdi_sio.h for description of what is reset */ 1705 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1706 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1707 FTDI_SIO_RESET_SIO, 1708 priv->interface, buf, 0, WDR_TIMEOUT); 1709 1710 /* Termios defaults are set by usb_serial_init. We don't change 1711 port->tty->termios - this would lose speed settings, etc. 1712 This is same behaviour as serial.c/rs_open() - Kuba */ 1713 1714 /* ftdi_set_termios will send usb control messages */ 1715 if (tty) 1716 ftdi_set_termios(tty, port, tty->termios); 1717 1718 /* Not throttled */ 1719 spin_lock_irqsave(&priv->rx_lock, flags); 1720 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1721 spin_unlock_irqrestore(&priv->rx_lock, flags); 1722 1723 /* Start reading from the device */ 1724 priv->rx_processed = 0; 1725 usb_fill_bulk_urb(port->read_urb, dev, 1726 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1727 port->read_urb->transfer_buffer, 1728 port->read_urb->transfer_buffer_length, 1729 ftdi_read_bulk_callback, port); 1730 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1731 if (result) 1732 dev_err(&port->dev, 1733 "%s - failed submitting read urb, error %d\n", 1734 __func__, result); 1735 else 1736 kref_get(&priv->kref); 1737 1738 return result; 1739 } /* ftdi_open */ 1740 1741 1742 static void ftdi_dtr_rts(struct usb_serial_port *port, int on) 1743 { 1744 struct ftdi_private *priv = usb_get_serial_port_data(port); 1745 char buf[1]; 1746 1747 mutex_lock(&port->serial->disc_mutex); 1748 if (!port->serial->disconnected) { 1749 /* Disable flow control */ 1750 if (!on && usb_control_msg(port->serial->dev, 1751 usb_sndctrlpipe(port->serial->dev, 0), 1752 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1753 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1754 0, priv->interface, buf, 0, 1755 WDR_TIMEOUT) < 0) { 1756 dev_err(&port->dev, "error from flowcontrol urb\n"); 1757 } 1758 /* drop RTS and DTR */ 1759 if (on) 1760 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1761 else 1762 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1763 } 1764 mutex_unlock(&port->serial->disc_mutex); 1765 } 1766 1767 /* 1768 * usbserial:__serial_close only calls ftdi_close if the point is open 1769 * 1770 * This only gets called when it is the last close 1771 * 1772 * 1773 */ 1774 1775 static void ftdi_close(struct usb_serial_port *port) 1776 { /* ftdi_close */ 1777 struct ftdi_private *priv = usb_get_serial_port_data(port); 1778 1779 dbg("%s", __func__); 1780 1781 1782 /* cancel any scheduled reading */ 1783 cancel_delayed_work_sync(&priv->rx_work); 1784 1785 /* shutdown our bulk read */ 1786 usb_kill_urb(port->read_urb); 1787 kref_put(&priv->kref, ftdi_sio_priv_release); 1788 } /* ftdi_close */ 1789 1790 1791 1792 /* The SIO requires the first byte to have: 1793 * B0 1 1794 * B1 0 1795 * B2..7 length of message excluding byte 0 1796 * 1797 * The new devices do not require this byte 1798 */ 1799 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1800 const unsigned char *buf, int count) 1801 { /* ftdi_write */ 1802 struct ftdi_private *priv = usb_get_serial_port_data(port); 1803 struct urb *urb; 1804 unsigned char *buffer; 1805 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1806 int status; 1807 int transfer_size; 1808 unsigned long flags; 1809 1810 dbg("%s port %d, %d bytes", __func__, port->number, count); 1811 1812 if (count == 0) { 1813 dbg("write request of 0 bytes"); 1814 return 0; 1815 } 1816 spin_lock_irqsave(&priv->tx_lock, flags); 1817 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1818 spin_unlock_irqrestore(&priv->tx_lock, flags); 1819 dbg("%s - write limit hit\n", __func__); 1820 return 0; 1821 } 1822 priv->tx_outstanding_urbs++; 1823 spin_unlock_irqrestore(&priv->tx_lock, flags); 1824 1825 data_offset = priv->write_offset; 1826 dbg("data_offset set to %d", data_offset); 1827 1828 /* Determine total transfer size */ 1829 transfer_size = count; 1830 if (data_offset > 0) { 1831 /* Original sio needs control bytes too... */ 1832 transfer_size += (data_offset * 1833 ((count + (priv->max_packet_size - 1 - data_offset)) / 1834 (priv->max_packet_size - data_offset))); 1835 } 1836 1837 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1838 if (!buffer) { 1839 dev_err(&port->dev, 1840 "%s ran out of kernel memory for urb ...\n", __func__); 1841 count = -ENOMEM; 1842 goto error_no_buffer; 1843 } 1844 1845 urb = usb_alloc_urb(0, GFP_ATOMIC); 1846 if (!urb) { 1847 dev_err(&port->dev, "%s - no more free urbs\n", __func__); 1848 count = -ENOMEM; 1849 goto error_no_urb; 1850 } 1851 1852 /* Copy data */ 1853 if (data_offset > 0) { 1854 /* Original sio requires control byte at start of 1855 each packet. */ 1856 int user_pktsz = priv->max_packet_size - data_offset; 1857 int todo = count; 1858 unsigned char *first_byte = buffer; 1859 const unsigned char *current_position = buf; 1860 1861 while (todo > 0) { 1862 if (user_pktsz > todo) 1863 user_pktsz = todo; 1864 /* Write the control byte at the front of the packet*/ 1865 *first_byte = 1 | ((user_pktsz) << 2); 1866 /* Copy data for packet */ 1867 memcpy(first_byte + data_offset, 1868 current_position, user_pktsz); 1869 first_byte += user_pktsz + data_offset; 1870 current_position += user_pktsz; 1871 todo -= user_pktsz; 1872 } 1873 } else { 1874 /* No control byte required. */ 1875 /* Copy in the data to send */ 1876 memcpy(buffer, buf, count); 1877 } 1878 1879 usb_serial_debug_data(debug, &port->dev, __func__, 1880 transfer_size, buffer); 1881 1882 /* fill the buffer and send it */ 1883 usb_fill_bulk_urb(urb, port->serial->dev, 1884 usb_sndbulkpipe(port->serial->dev, 1885 port->bulk_out_endpointAddress), 1886 buffer, transfer_size, 1887 ftdi_write_bulk_callback, port); 1888 1889 status = usb_submit_urb(urb, GFP_ATOMIC); 1890 if (status) { 1891 dev_err(&port->dev, 1892 "%s - failed submitting write urb, error %d\n", 1893 __func__, status); 1894 count = status; 1895 goto error; 1896 } else { 1897 spin_lock_irqsave(&priv->tx_lock, flags); 1898 priv->tx_outstanding_bytes += count; 1899 priv->tx_bytes += count; 1900 spin_unlock_irqrestore(&priv->tx_lock, flags); 1901 } 1902 1903 /* we are done with this urb, so let the host driver 1904 * really free it when it is finished with it */ 1905 usb_free_urb(urb); 1906 1907 dbg("%s write returning: %d", __func__, count); 1908 return count; 1909 error: 1910 usb_free_urb(urb); 1911 error_no_urb: 1912 kfree(buffer); 1913 error_no_buffer: 1914 spin_lock_irqsave(&priv->tx_lock, flags); 1915 priv->tx_outstanding_urbs--; 1916 spin_unlock_irqrestore(&priv->tx_lock, flags); 1917 return count; 1918 } /* ftdi_write */ 1919 1920 1921 /* This function may get called when the device is closed */ 1922 1923 static void ftdi_write_bulk_callback(struct urb *urb) 1924 { 1925 unsigned long flags; 1926 struct usb_serial_port *port = urb->context; 1927 struct ftdi_private *priv; 1928 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1929 unsigned long countback; 1930 int status = urb->status; 1931 1932 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1933 kfree(urb->transfer_buffer); 1934 1935 dbg("%s - port %d", __func__, port->number); 1936 1937 priv = usb_get_serial_port_data(port); 1938 if (!priv) { 1939 dbg("%s - bad port private data pointer - exiting", __func__); 1940 return; 1941 } 1942 /* account for transferred data */ 1943 countback = urb->actual_length; 1944 data_offset = priv->write_offset; 1945 if (data_offset > 0) { 1946 /* Subtract the control bytes */ 1947 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size)); 1948 } 1949 spin_lock_irqsave(&priv->tx_lock, flags); 1950 --priv->tx_outstanding_urbs; 1951 priv->tx_outstanding_bytes -= countback; 1952 spin_unlock_irqrestore(&priv->tx_lock, flags); 1953 1954 if (status) { 1955 dbg("nonzero write bulk status received: %d", status); 1956 return; 1957 } 1958 1959 usb_serial_port_softint(port); 1960 } /* ftdi_write_bulk_callback */ 1961 1962 1963 static int ftdi_write_room(struct tty_struct *tty) 1964 { 1965 struct usb_serial_port *port = tty->driver_data; 1966 struct ftdi_private *priv = usb_get_serial_port_data(port); 1967 int room; 1968 unsigned long flags; 1969 1970 dbg("%s - port %d", __func__, port->number); 1971 1972 spin_lock_irqsave(&priv->tx_lock, flags); 1973 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1974 /* 1975 * We really can take anything the user throws at us 1976 * but let's pick a nice big number to tell the tty 1977 * layer that we have lots of free space 1978 */ 1979 room = 2048; 1980 } else { 1981 room = 0; 1982 } 1983 spin_unlock_irqrestore(&priv->tx_lock, flags); 1984 return room; 1985 } 1986 1987 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1988 { 1989 struct usb_serial_port *port = tty->driver_data; 1990 struct ftdi_private *priv = usb_get_serial_port_data(port); 1991 int buffered; 1992 unsigned long flags; 1993 1994 dbg("%s - port %d", __func__, port->number); 1995 1996 spin_lock_irqsave(&priv->tx_lock, flags); 1997 buffered = (int)priv->tx_outstanding_bytes; 1998 spin_unlock_irqrestore(&priv->tx_lock, flags); 1999 if (buffered < 0) { 2000 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", 2001 __func__); 2002 buffered = 0; 2003 } 2004 return buffered; 2005 } 2006 2007 static void ftdi_read_bulk_callback(struct urb *urb) 2008 { 2009 struct usb_serial_port *port = urb->context; 2010 struct tty_struct *tty; 2011 struct ftdi_private *priv; 2012 unsigned long countread; 2013 unsigned long flags; 2014 int status = urb->status; 2015 2016 if (urb->number_of_packets > 0) { 2017 dev_err(&port->dev, "%s transfer_buffer_length %d " 2018 "actual_length %d number of packets %d\n", __func__, 2019 urb->transfer_buffer_length, 2020 urb->actual_length, urb->number_of_packets); 2021 dev_err(&port->dev, "%s transfer_flags %x\n", __func__, 2022 urb->transfer_flags); 2023 } 2024 2025 dbg("%s - port %d", __func__, port->number); 2026 2027 if (port->port.count <= 0) 2028 return; 2029 2030 tty = tty_port_tty_get(&port->port); 2031 if (!tty) { 2032 dbg("%s - bad tty pointer - exiting", __func__); 2033 return; 2034 } 2035 2036 priv = usb_get_serial_port_data(port); 2037 if (!priv) { 2038 dbg("%s - bad port private data pointer - exiting", __func__); 2039 goto out; 2040 } 2041 2042 if (urb != port->read_urb) 2043 dev_err(&port->dev, "%s - Not my urb!\n", __func__); 2044 2045 if (status) { 2046 /* This will happen at close every time so it is a dbg not an 2047 err */ 2048 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 2049 goto out; 2050 } 2051 2052 /* count data bytes, but not status bytes */ 2053 countread = urb->actual_length; 2054 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size); 2055 spin_lock_irqsave(&priv->rx_lock, flags); 2056 priv->rx_bytes += countread; 2057 spin_unlock_irqrestore(&priv->rx_lock, flags); 2058 2059 ftdi_process_read(&priv->rx_work.work); 2060 out: 2061 tty_kref_put(tty); 2062 } /* ftdi_read_bulk_callback */ 2063 2064 2065 static void ftdi_process_read(struct work_struct *work) 2066 { /* ftdi_process_read */ 2067 struct ftdi_private *priv = 2068 container_of(work, struct ftdi_private, rx_work.work); 2069 struct usb_serial_port *port = priv->port; 2070 struct urb *urb; 2071 struct tty_struct *tty; 2072 char error_flag; 2073 unsigned char *data; 2074 2075 int i; 2076 int result; 2077 int need_flip; 2078 int packet_offset; 2079 unsigned long flags; 2080 2081 dbg("%s - port %d", __func__, port->number); 2082 2083 if (port->port.count <= 0) 2084 return; 2085 2086 tty = tty_port_tty_get(&port->port); 2087 if (!tty) { 2088 dbg("%s - bad tty pointer - exiting", __func__); 2089 return; 2090 } 2091 2092 priv = usb_get_serial_port_data(port); 2093 if (!priv) { 2094 dbg("%s - bad port private data pointer - exiting", __func__); 2095 goto out; 2096 } 2097 2098 urb = port->read_urb; 2099 if (!urb) { 2100 dbg("%s - bad read_urb pointer - exiting", __func__); 2101 goto out; 2102 } 2103 2104 data = urb->transfer_buffer; 2105 2106 if (priv->rx_processed) { 2107 dbg("%s - already processed: %d bytes, %d remain", __func__, 2108 priv->rx_processed, 2109 urb->actual_length - priv->rx_processed); 2110 } else { 2111 /* The first two bytes of every read packet are status */ 2112 if (urb->actual_length > 2) 2113 usb_serial_debug_data(debug, &port->dev, __func__, 2114 urb->actual_length, data); 2115 else 2116 dbg("Status only: %03oo %03oo", data[0], data[1]); 2117 } 2118 2119 2120 /* TO DO -- check for hung up line and handle appropriately: */ 2121 /* send hangup */ 2122 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 2123 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 2124 2125 need_flip = 0; 2126 for (packet_offset = priv->rx_processed; 2127 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) { 2128 int length; 2129 2130 /* Compare new line status to the old one, signal if different/ 2131 N.B. packet may be processed more than once, but differences 2132 are only processed once. */ 2133 char new_status = data[packet_offset + 0] & 2134 FTDI_STATUS_B0_MASK; 2135 if (new_status != priv->prev_status) { 2136 priv->diff_status |= 2137 new_status ^ priv->prev_status; 2138 wake_up_interruptible(&priv->delta_msr_wait); 2139 priv->prev_status = new_status; 2140 } 2141 2142 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2; 2143 if (length < 0) { 2144 dev_err(&port->dev, "%s - bad packet length: %d\n", 2145 __func__, length+2); 2146 length = 0; 2147 } 2148 2149 if (priv->rx_flags & THROTTLED) { 2150 dbg("%s - throttled", __func__); 2151 break; 2152 } 2153 if (tty_buffer_request_room(tty, length) < length) { 2154 /* break out & wait for throttling/unthrottling to 2155 happen */ 2156 dbg("%s - receive room low", __func__); 2157 break; 2158 } 2159 2160 /* Handle errors and break */ 2161 error_flag = TTY_NORMAL; 2162 /* Although the device uses a bitmask and hence can have 2163 multiple errors on a packet - the order here sets the 2164 priority the error is returned to the tty layer */ 2165 2166 if (data[packet_offset+1] & FTDI_RS_OE) { 2167 error_flag = TTY_OVERRUN; 2168 dbg("OVERRRUN error"); 2169 } 2170 if (data[packet_offset+1] & FTDI_RS_BI) { 2171 error_flag = TTY_BREAK; 2172 dbg("BREAK received"); 2173 usb_serial_handle_break(port); 2174 } 2175 if (data[packet_offset+1] & FTDI_RS_PE) { 2176 error_flag = TTY_PARITY; 2177 dbg("PARITY error"); 2178 } 2179 if (data[packet_offset+1] & FTDI_RS_FE) { 2180 error_flag = TTY_FRAME; 2181 dbg("FRAMING error"); 2182 } 2183 if (length > 0) { 2184 for (i = 2; i < length+2; i++) { 2185 /* Note that the error flag is duplicated for 2186 every character received since we don't know 2187 which character it applied to */ 2188 if (!usb_serial_handle_sysrq_char(tty, port, 2189 data[packet_offset + i])) 2190 tty_insert_flip_char(tty, 2191 data[packet_offset + i], 2192 error_flag); 2193 } 2194 need_flip = 1; 2195 } 2196 2197 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 2198 /* if a parity error is detected you get status packets forever 2199 until a character is sent without a parity error. 2200 This doesn't work well since the application receives a 2201 never ending stream of bad data - even though new data 2202 hasn't been sent. Therefore I (bill) have taken this out. 2203 However - this might make sense for framing errors and so on 2204 so I am leaving the code in for now. 2205 */ 2206 else { 2207 if (error_flag != TTY_NORMAL) { 2208 dbg("error_flag is not normal"); 2209 /* In this case it is just status - if that is 2210 an error send a bad character */ 2211 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 2212 tty_flip_buffer_push(tty); 2213 tty_insert_flip_char(tty, 0xff, error_flag); 2214 need_flip = 1; 2215 } 2216 } 2217 #endif 2218 } /* "for(packet_offset=0..." */ 2219 2220 /* Low latency */ 2221 if (need_flip) 2222 tty_flip_buffer_push(tty); 2223 2224 if (packet_offset < urb->actual_length) { 2225 /* not completely processed - record progress */ 2226 priv->rx_processed = packet_offset; 2227 dbg("%s - incomplete, %d bytes processed, %d remain", 2228 __func__, packet_offset, 2229 urb->actual_length - packet_offset); 2230 /* check if we were throttled while processing */ 2231 spin_lock_irqsave(&priv->rx_lock, flags); 2232 if (priv->rx_flags & THROTTLED) { 2233 priv->rx_flags |= ACTUALLY_THROTTLED; 2234 spin_unlock_irqrestore(&priv->rx_lock, flags); 2235 dbg("%s - deferring remainder until unthrottled", 2236 __func__); 2237 goto out; 2238 } 2239 spin_unlock_irqrestore(&priv->rx_lock, flags); 2240 /* if the port is closed stop trying to read */ 2241 if (port->port.count > 0) 2242 /* delay processing of remainder */ 2243 schedule_delayed_work(&priv->rx_work, 1); 2244 else 2245 dbg("%s - port is closed", __func__); 2246 goto out; 2247 } 2248 2249 /* urb is completely processed */ 2250 priv->rx_processed = 0; 2251 2252 /* if the port is closed stop trying to read */ 2253 if (port->port.count > 0) { 2254 /* Continue trying to always read */ 2255 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2256 usb_rcvbulkpipe(port->serial->dev, 2257 port->bulk_in_endpointAddress), 2258 port->read_urb->transfer_buffer, 2259 port->read_urb->transfer_buffer_length, 2260 ftdi_read_bulk_callback, port); 2261 2262 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2263 if (result) 2264 dev_err(&port->dev, 2265 "%s - failed resubmitting read urb, error %d\n", 2266 __func__, result); 2267 } 2268 out: 2269 tty_kref_put(tty); 2270 } /* ftdi_process_read */ 2271 2272 2273 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2274 { 2275 struct usb_serial_port *port = tty->driver_data; 2276 struct ftdi_private *priv = usb_get_serial_port_data(port); 2277 __u16 urb_value = 0; 2278 char buf[1]; 2279 2280 /* break_state = -1 to turn on break, and 0 to turn off break */ 2281 /* see drivers/char/tty_io.c to see it used */ 2282 /* last_set_data_urb_value NEVER has the break bit set in it */ 2283 2284 if (break_state) 2285 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2286 else 2287 urb_value = priv->last_set_data_urb_value; 2288 2289 if (usb_control_msg(port->serial->dev, 2290 usb_sndctrlpipe(port->serial->dev, 0), 2291 FTDI_SIO_SET_DATA_REQUEST, 2292 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2293 urb_value , priv->interface, 2294 buf, 0, WDR_TIMEOUT) < 0) { 2295 dev_err(&port->dev, "%s FAILED to enable/disable break state " 2296 "(state was %d)\n", __func__, break_state); 2297 } 2298 2299 dbg("%s break state is %d - urb is %d", __func__, 2300 break_state, urb_value); 2301 2302 } 2303 2304 2305 /* old_termios contains the original termios settings and tty->termios contains 2306 * the new setting to be used 2307 * WARNING: set_termios calls this with old_termios in kernel space 2308 */ 2309 2310 static void ftdi_set_termios(struct tty_struct *tty, 2311 struct usb_serial_port *port, struct ktermios *old_termios) 2312 { /* ftdi_termios */ 2313 struct usb_device *dev = port->serial->dev; 2314 struct ftdi_private *priv = usb_get_serial_port_data(port); 2315 struct ktermios *termios = tty->termios; 2316 unsigned int cflag = termios->c_cflag; 2317 __u16 urb_value; /* will hold the new flags */ 2318 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2319 2320 /* Added for xon/xoff support */ 2321 unsigned int iflag = termios->c_iflag; 2322 unsigned char vstop; 2323 unsigned char vstart; 2324 2325 dbg("%s", __func__); 2326 2327 /* Force baud rate if this device requires it, unless it is set to 2328 B0. */ 2329 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2330 dbg("%s: forcing baud rate for this device", __func__); 2331 tty_encode_baud_rate(tty, priv->force_baud, 2332 priv->force_baud); 2333 } 2334 2335 /* Force RTS-CTS if this device requires it. */ 2336 if (priv->force_rtscts) { 2337 dbg("%s: forcing rtscts for this device", __func__); 2338 termios->c_cflag |= CRTSCTS; 2339 } 2340 2341 cflag = termios->c_cflag; 2342 2343 /* FIXME -For this cut I don't care if the line is really changing or 2344 not - so just do the change regardless - should be able to 2345 compare old_termios and tty->termios */ 2346 /* NOTE These routines can get interrupted by 2347 ftdi_sio_read_bulk_callback - need to examine what this means - 2348 don't see any problems yet */ 2349 2350 /* Set number of data bits, parity, stop bits */ 2351 2352 termios->c_cflag &= ~CMSPAR; 2353 2354 urb_value = 0; 2355 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2356 FTDI_SIO_SET_DATA_STOP_BITS_1); 2357 urb_value |= (cflag & PARENB ? 2358 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2359 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2360 FTDI_SIO_SET_DATA_PARITY_NONE); 2361 if (cflag & CSIZE) { 2362 switch (cflag & CSIZE) { 2363 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2364 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2365 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2366 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2367 default: 2368 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); 2369 } 2370 } 2371 2372 /* This is needed by the break command since it uses the same command 2373 - but is or'ed with this value */ 2374 priv->last_set_data_urb_value = urb_value; 2375 2376 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2377 FTDI_SIO_SET_DATA_REQUEST, 2378 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2379 urb_value , priv->interface, 2380 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2381 dev_err(&port->dev, "%s FAILED to set " 2382 "databits/stopbits/parity\n", __func__); 2383 } 2384 2385 /* Now do the baudrate */ 2386 if ((cflag & CBAUD) == B0) { 2387 /* Disable flow control */ 2388 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2389 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2390 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2391 0, priv->interface, 2392 buf, 0, WDR_TIMEOUT) < 0) { 2393 dev_err(&port->dev, 2394 "%s error from disable flowcontrol urb\n", 2395 __func__); 2396 } 2397 /* Drop RTS and DTR */ 2398 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2399 } else { 2400 /* set the baudrate determined before */ 2401 if (change_speed(tty, port)) 2402 dev_err(&port->dev, "%s urb failed to set baudrate\n", 2403 __func__); 2404 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2405 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2406 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2407 } 2408 2409 /* Set flow control */ 2410 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2411 if (cflag & CRTSCTS) { 2412 dbg("%s Setting to CRTSCTS flow control", __func__); 2413 if (usb_control_msg(dev, 2414 usb_sndctrlpipe(dev, 0), 2415 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2416 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2417 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2418 buf, 0, WDR_TIMEOUT) < 0) { 2419 dev_err(&port->dev, 2420 "urb failed to set to rts/cts flow control\n"); 2421 } 2422 2423 } else { 2424 /* 2425 * Xon/Xoff code 2426 * 2427 * Check the IXOFF status in the iflag component of the 2428 * termios structure. If IXOFF is not set, the pre-xon/xoff 2429 * code is executed. 2430 */ 2431 if (iflag & IXOFF) { 2432 dbg("%s request to enable xonxoff iflag=%04x", 2433 __func__, iflag); 2434 /* Try to enable the XON/XOFF on the ftdi_sio 2435 * Set the vstart and vstop -- could have been done up 2436 * above where a lot of other dereferencing is done but 2437 * that would be very inefficient as vstart and vstop 2438 * are not always needed. 2439 */ 2440 vstart = termios->c_cc[VSTART]; 2441 vstop = termios->c_cc[VSTOP]; 2442 urb_value = (vstop << 8) | (vstart); 2443 2444 if (usb_control_msg(dev, 2445 usb_sndctrlpipe(dev, 0), 2446 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2447 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2448 urb_value , (FTDI_SIO_XON_XOFF_HS 2449 | priv->interface), 2450 buf, 0, WDR_TIMEOUT) < 0) { 2451 dev_err(&port->dev, "urb failed to set to " 2452 "xon/xoff flow control\n"); 2453 } 2454 } else { 2455 /* else clause to only run if cflag ! CRTSCTS and iflag 2456 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2457 * stack - not by device */ 2458 dbg("%s Turning off hardware flow control", __func__); 2459 if (usb_control_msg(dev, 2460 usb_sndctrlpipe(dev, 0), 2461 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2462 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2463 0, priv->interface, 2464 buf, 0, WDR_TIMEOUT) < 0) { 2465 dev_err(&port->dev, 2466 "urb failed to clear flow control\n"); 2467 } 2468 } 2469 2470 } 2471 return; 2472 } 2473 2474 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2475 { 2476 struct usb_serial_port *port = tty->driver_data; 2477 struct ftdi_private *priv = usb_get_serial_port_data(port); 2478 unsigned char buf[2]; 2479 int ret; 2480 2481 dbg("%s TIOCMGET", __func__); 2482 switch (priv->chip_type) { 2483 case SIO: 2484 /* Request the status from the device */ 2485 ret = usb_control_msg(port->serial->dev, 2486 usb_rcvctrlpipe(port->serial->dev, 0), 2487 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2488 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2489 0, 0, 2490 buf, 1, WDR_TIMEOUT); 2491 if (ret < 0) 2492 return ret; 2493 break; 2494 case FT8U232AM: 2495 case FT232BM: 2496 case FT2232C: 2497 case FT232RL: 2498 case FT2232H: 2499 case FT4232H: 2500 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2501 value) - in the same format as the data returned from the in 2502 point */ 2503 ret = usb_control_msg(port->serial->dev, 2504 usb_rcvctrlpipe(port->serial->dev, 0), 2505 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2506 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2507 0, priv->interface, 2508 buf, 2, WDR_TIMEOUT); 2509 if (ret < 0) 2510 return ret; 2511 break; 2512 default: 2513 return -EFAULT; 2514 } 2515 2516 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2517 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2518 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2519 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2520 priv->last_dtr_rts; 2521 } 2522 2523 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2524 unsigned int set, unsigned int clear) 2525 { 2526 struct usb_serial_port *port = tty->driver_data; 2527 dbg("%s TIOCMSET", __func__); 2528 return update_mctrl(port, set, clear); 2529 } 2530 2531 2532 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2533 unsigned int cmd, unsigned long arg) 2534 { 2535 struct usb_serial_port *port = tty->driver_data; 2536 struct ftdi_private *priv = usb_get_serial_port_data(port); 2537 2538 dbg("%s cmd 0x%04x", __func__, cmd); 2539 2540 /* Based on code from acm.c and others */ 2541 switch (cmd) { 2542 2543 case TIOCGSERIAL: /* gets serial port data */ 2544 return get_serial_info(port, 2545 (struct serial_struct __user *) arg); 2546 2547 case TIOCSSERIAL: /* sets serial port data */ 2548 return set_serial_info(tty, port, 2549 (struct serial_struct __user *) arg); 2550 2551 /* 2552 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2553 * - mask passed in arg for lines of interest 2554 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2555 * Caller should use TIOCGICOUNT to see which one it was. 2556 * 2557 * This code is borrowed from linux/drivers/char/serial.c 2558 */ 2559 case TIOCMIWAIT: 2560 while (priv != NULL) { 2561 interruptible_sleep_on(&priv->delta_msr_wait); 2562 /* see if a signal did it */ 2563 if (signal_pending(current)) 2564 return -ERESTARTSYS; 2565 else { 2566 char diff = priv->diff_status; 2567 2568 if (diff == 0) 2569 return -EIO; /* no change => error */ 2570 2571 /* Consume all events */ 2572 priv->diff_status = 0; 2573 2574 /* Return 0 if caller wanted to know about 2575 these bits */ 2576 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2577 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2578 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2579 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2580 return 0; 2581 } 2582 /* 2583 * Otherwise caller can't care less about what 2584 * happened,and so we continue to wait for more 2585 * events. 2586 */ 2587 } 2588 } 2589 return 0; 2590 default: 2591 break; 2592 } 2593 /* This is not necessarily an error - turns out the higher layers 2594 * will do some ioctls themselves (see comment above) 2595 */ 2596 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2597 return -ENOIOCTLCMD; 2598 } 2599 2600 static void ftdi_throttle(struct tty_struct *tty) 2601 { 2602 struct usb_serial_port *port = tty->driver_data; 2603 struct ftdi_private *priv = usb_get_serial_port_data(port); 2604 unsigned long flags; 2605 2606 dbg("%s - port %d", __func__, port->number); 2607 2608 spin_lock_irqsave(&priv->rx_lock, flags); 2609 priv->rx_flags |= THROTTLED; 2610 spin_unlock_irqrestore(&priv->rx_lock, flags); 2611 } 2612 2613 2614 static void ftdi_unthrottle(struct tty_struct *tty) 2615 { 2616 struct usb_serial_port *port = tty->driver_data; 2617 struct ftdi_private *priv = usb_get_serial_port_data(port); 2618 int actually_throttled; 2619 unsigned long flags; 2620 2621 dbg("%s - port %d", __func__, port->number); 2622 2623 spin_lock_irqsave(&priv->rx_lock, flags); 2624 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2625 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2626 spin_unlock_irqrestore(&priv->rx_lock, flags); 2627 2628 if (actually_throttled) 2629 schedule_delayed_work(&priv->rx_work, 0); 2630 } 2631 2632 static int __init ftdi_init(void) 2633 { 2634 int retval; 2635 2636 dbg("%s", __func__); 2637 if (vendor > 0 && product > 0) { 2638 /* Add user specified VID/PID to reserved element of table. */ 2639 int i; 2640 for (i = 0; id_table_combined[i].idVendor; i++) 2641 ; 2642 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2643 id_table_combined[i].idVendor = vendor; 2644 id_table_combined[i].idProduct = product; 2645 } 2646 retval = usb_serial_register(&ftdi_sio_device); 2647 if (retval) 2648 goto failed_sio_register; 2649 retval = usb_register(&ftdi_driver); 2650 if (retval) 2651 goto failed_usb_register; 2652 2653 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 2654 DRIVER_DESC "\n"); 2655 return 0; 2656 failed_usb_register: 2657 usb_serial_deregister(&ftdi_sio_device); 2658 failed_sio_register: 2659 return retval; 2660 } 2661 2662 2663 static void __exit ftdi_exit(void) 2664 { 2665 2666 dbg("%s", __func__); 2667 2668 usb_deregister(&ftdi_driver); 2669 usb_serial_deregister(&ftdi_sio_device); 2670 2671 } 2672 2673 2674 module_init(ftdi_init); 2675 module_exit(ftdi_exit); 2676 2677 MODULE_AUTHOR(DRIVER_AUTHOR); 2678 MODULE_DESCRIPTION(DRIVER_DESC); 2679 MODULE_LICENSE("GPL"); 2680 2681 module_param(debug, bool, S_IRUGO | S_IWUSR); 2682 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2683 module_param(vendor, ushort, 0); 2684 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2685 __MODULE_STRING(FTDI_VID)")"); 2686 module_param(product, ushort, 0); 2687 MODULE_PARM_DESC(product, "User specified product ID"); 2688 2689 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR); 2690 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override"); 2691