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/tty.h> 37 #include <linux/tty_driver.h> 38 #include <linux/tty_flip.h> 39 #include <linux/module.h> 40 #include <linux/spinlock.h> 41 #include <linux/uaccess.h> 42 #include <linux/usb.h> 43 #include <linux/serial.h> 44 #include <linux/usb/serial.h> 45 #include "ftdi_sio.h" 46 47 /* 48 * Version Information 49 */ 50 #define DRIVER_VERSION "v1.4.3" 51 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>" 52 #define DRIVER_DESC "USB FTDI Serial Converters Driver" 53 54 static int debug; 55 static __u16 vendor = FTDI_VID; 56 static __u16 product; 57 58 struct ftdi_private { 59 struct kref kref; 60 ftdi_chip_type_t chip_type; 61 /* type of device, either SIO or FT8U232AM */ 62 int baud_base; /* baud base clock for divisor setting */ 63 int custom_divisor; /* custom_divisor kludge, this is for 64 baud_base (different from what goes to the 65 chip!) */ 66 __u16 last_set_data_urb_value ; 67 /* the last data state set - needed for doing 68 * a break 69 */ 70 int write_offset; /* This is the offset in the usb data block to 71 * write the serial data - it varies between 72 * devices 73 */ 74 int flags; /* some ASYNC_xxxx flags are supported */ 75 unsigned long last_dtr_rts; /* saved modem control outputs */ 76 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ 77 char prev_status, diff_status; /* Used for TIOCMIWAIT */ 78 __u8 rx_flags; /* receive state flags (throttling) */ 79 spinlock_t rx_lock; /* spinlock for receive state */ 80 struct delayed_work rx_work; 81 struct usb_serial_port *port; 82 int rx_processed; 83 unsigned long rx_bytes; 84 85 __u16 interface; /* FT2232C port interface (0 for FT232/245) */ 86 87 speed_t force_baud; /* if non-zero, force the baud rate to 88 this value */ 89 int force_rtscts; /* if non-zero, force RTS-CTS to always 90 be enabled */ 91 92 spinlock_t tx_lock; /* spinlock for transmit state */ 93 unsigned long tx_bytes; 94 unsigned long tx_outstanding_bytes; 95 unsigned long tx_outstanding_urbs; 96 }; 97 98 /* struct ftdi_sio_quirk is used by devices requiring special attention. */ 99 struct ftdi_sio_quirk { 100 int (*probe)(struct usb_serial *); 101 /* Special settings for probed ports. */ 102 void (*port_probe)(struct ftdi_private *); 103 }; 104 105 static int ftdi_jtag_probe(struct usb_serial *serial); 106 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial); 107 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv); 108 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv); 109 110 static struct ftdi_sio_quirk ftdi_jtag_quirk = { 111 .probe = ftdi_jtag_probe, 112 }; 113 114 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = { 115 .probe = ftdi_mtxorb_hack_setup, 116 }; 117 118 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = { 119 .port_probe = ftdi_USB_UIRT_setup, 120 }; 121 122 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = { 123 .port_probe = ftdi_HE_TIRA1_setup, 124 }; 125 126 /* 127 * The 8U232AM has the same API as the sio except for: 128 * - it can support MUCH higher baudrates; up to: 129 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz 130 * o 230400 at 12MHz 131 * so .. 8U232AM's baudrate setting codes are different 132 * - it has a two byte status code. 133 * - it returns characters every 16ms (the FTDI does it every 40ms) 134 * 135 * the bcdDevice value is used to differentiate FT232BM and FT245BM from 136 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID 137 * combinations in both tables. 138 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices, 139 * but I don't know if those ever went into mass production. [Ian Abbott] 140 */ 141 142 143 144 static struct usb_device_id id_table_combined [] = { 145 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) }, 146 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) }, 147 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) }, 148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) }, 149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) }, 150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) }, 151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) }, 152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) }, 153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) }, 154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) }, 155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) }, 156 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, 157 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, 158 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, 159 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) }, 160 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) }, 161 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) }, 162 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) }, 163 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) }, 164 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) }, 165 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) }, 166 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) }, 167 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) }, 168 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) }, 169 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) }, 170 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) }, 171 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) }, 172 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) }, 173 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) }, 174 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) }, 175 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) }, 176 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) }, 177 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) }, 178 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) }, 179 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) }, 180 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) }, 181 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) }, 182 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) }, 183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) }, 184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) }, 185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) }, 186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) }, 187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) }, 188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) }, 189 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) }, 190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) }, 191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) }, 192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) }, 193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) }, 194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) }, 195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) }, 196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) }, 197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) }, 198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) }, 199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) }, 200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) }, 201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) }, 202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) }, 203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) }, 204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) }, 205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) }, 206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) }, 207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) }, 208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) }, 209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) }, 210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) }, 211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) }, 212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) }, 213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) }, 214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) }, 215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) }, 216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) }, 217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) }, 218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) }, 219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) }, 220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) }, 221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) }, 222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) }, 223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) }, 224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) }, 225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) }, 226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) }, 227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) }, 228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) }, 229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID), 230 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) }, 232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) }, 233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) }, 234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) }, 235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID), 236 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) }, 238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) }, 239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) }, 240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) }, 241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) }, 242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) }, 243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) }, 244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) }, 245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) }, 246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) }, 247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) }, 248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) }, 249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) }, 250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) }, 251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) }, 252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) }, 253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) }, 254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) }, 255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) }, 256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) }, 257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) }, 258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) }, 259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) }, 260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) }, 261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) }, 262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) }, 263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) }, 264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) }, 265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) }, 266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) }, 267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) }, 268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) }, 269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) }, 270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) }, 271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) }, 272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) }, 273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) }, 274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) }, 275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID), 276 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID), 278 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID), 280 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID), 282 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID), 284 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID), 286 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) }, 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) }, 289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) }, 290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) }, 291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) }, 292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) }, 293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) }, 294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) }, 295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) }, 296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) }, 297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) }, 298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) }, 299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) }, 300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) }, 301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) }, 302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) }, 303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) }, 304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) }, 305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) }, 306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) }, 307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) }, 308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) }, 309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) }, 310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) }, 311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) }, 312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) }, 313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) }, 314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) }, 315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) }, 316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) }, 317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) }, 318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) }, 319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) }, 320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) }, 321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) }, 322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) }, 323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) }, 324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) }, 325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) }, 326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) }, 327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) }, 328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) }, 329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) }, 330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) }, 331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) }, 332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) }, 333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) }, 334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) }, 335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) }, 336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) }, 337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) }, 338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) }, 339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) }, 340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) }, 341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) }, 342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) }, 343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) }, 344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) }, 345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) }, 346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) }, 347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) }, 348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) }, 349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) }, 350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) }, 351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) }, 352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) }, 353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) }, 354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) }, 355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) }, 356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) }, 357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) }, 358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) }, 359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) }, 360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) }, 361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) }, 362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) }, 363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) }, 364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) }, 365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) }, 366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) }, 367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) }, 368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) }, 369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) }, 370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) }, 371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) }, 372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) }, 373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) }, 374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) }, 375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) }, 376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) }, 377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) }, 378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) }, 379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) }, 380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) }, 381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) }, 382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) }, 383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) }, 384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) }, 385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) }, 386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) }, 387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) }, 388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) }, 389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) }, 390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) }, 391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) }, 392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) }, 393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) }, 394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) }, 395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) }, 396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) }, 397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) }, 398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) }, 399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) }, 400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) }, 401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) }, 402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) }, 403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) }, 404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) }, 405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) }, 406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) }, 407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) }, 408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) }, 409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) }, 410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) }, 411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) }, 412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) }, 413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) }, 414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) }, 415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) }, 416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) }, 417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) }, 418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) }, 419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) }, 420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) }, 421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) }, 422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) }, 423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) }, 424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) }, 425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) }, 426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) }, 427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) }, 428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) }, 429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) }, 430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) }, 431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) }, 432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) }, 433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) }, 434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) }, 435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) }, 436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) }, 437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) }, 438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) }, 439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) }, 440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) }, 441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) }, 442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) }, 443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) }, 444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) }, 445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) }, 446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) }, 447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) }, 448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) }, 449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) }, 450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) }, 451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) }, 452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) }, 453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) }, 454 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) }, 455 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) }, 456 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) }, 457 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) }, 458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) }, 459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) }, 460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) }, 461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) }, 462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) }, 463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) }, 464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) }, 465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) }, 466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) }, 467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) }, 468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) }, 469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) }, 470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) }, 471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) }, 472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) }, 473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) }, 474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) }, 475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) }, 476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) }, 477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) }, 478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) }, 479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) }, 480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) }, 481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) }, 482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) }, 483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) }, 484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) }, 485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) }, 486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) }, 487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) }, 488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) }, 489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) }, 490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) }, 491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) }, 492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) }, 493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) }, 494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) }, 495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) }, 496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) }, 497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) }, 498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) }, 499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) }, 500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) }, 501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) }, 502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) }, 503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) }, 504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) }, 505 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) }, 506 { USB_DEVICE(OCT_VID, OCT_US101_PID) }, 507 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID), 508 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk }, 509 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID), 510 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk }, 511 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) }, 512 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) }, 513 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) }, 514 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) }, 515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) }, 516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) }, 517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) }, 518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) }, 519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) }, 520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) }, 521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) }, 522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) }, 523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) }, 524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) }, 525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) }, 526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) }, 527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) }, 528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) }, 529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) }, 530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) }, 531 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) }, 532 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) }, 533 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) }, 534 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) }, 535 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) }, 536 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) }, 537 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) }, 538 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) }, 539 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) }, 540 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) }, 541 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) }, 542 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) }, 543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) }, 544 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) }, 545 /* 546 * Due to many user requests for multiple ELV devices we enable 547 * them by default. 548 */ 549 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) }, 550 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) }, 551 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) }, 552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) }, 553 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) }, 554 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) }, 555 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) }, 556 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) }, 557 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) }, 558 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) }, 559 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) }, 560 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) }, 561 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) }, 562 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) }, 563 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) }, 564 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) }, 565 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) }, 566 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) }, 567 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) }, 568 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) }, 569 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) }, 570 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, 571 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, 572 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) }, 573 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) }, 574 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) }, 575 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) }, 576 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) }, 577 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) }, 578 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) }, 579 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) }, 580 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) }, 581 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) }, 582 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) }, 583 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) }, 584 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) }, 585 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, 586 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, 587 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, 588 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, 589 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, 590 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, 591 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, 592 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, 593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) }, 594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) }, 595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) }, 596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) }, 597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) }, 598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) }, 599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) }, 600 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) }, 601 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, 602 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, 603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) }, 604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) }, 605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) }, 606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) }, 607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) }, 608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) }, 609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) }, 610 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) }, 611 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) }, 612 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) }, 613 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, 614 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, 615 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, 616 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, 617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, 618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, 619 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) }, 620 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) }, 621 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) }, 622 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) }, 623 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) }, 624 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) }, 625 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) }, 626 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) }, 627 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) }, 628 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) }, 629 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, 630 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, 631 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, 632 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, 633 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, 634 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) }, 635 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) }, 636 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) }, 637 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) }, 638 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) }, 639 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) }, 640 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) }, 641 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) }, 642 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) }, 643 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, 644 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, 645 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) }, 646 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, 647 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, 648 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, 649 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), 650 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 651 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), 652 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 653 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), 654 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 655 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID), 656 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 657 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID), 658 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 659 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, 660 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, 661 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) }, 662 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) }, 663 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) }, 664 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) }, 665 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) }, 666 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) }, 667 { USB_DEVICE(ATMEL_VID, STK541_PID) }, 668 { USB_DEVICE(DE_VID, STB_PID) }, 669 { USB_DEVICE(DE_VID, WHT_PID) }, 670 { USB_DEVICE(ADI_VID, ADI_GNICE_PID), 671 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 672 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) }, 673 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID), 674 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 675 { }, /* Optional parameter entry */ 676 { } /* Terminating entry */ 677 }; 678 679 MODULE_DEVICE_TABLE(usb, id_table_combined); 680 681 static struct usb_driver ftdi_driver = { 682 .name = "ftdi_sio", 683 .probe = usb_serial_probe, 684 .disconnect = usb_serial_disconnect, 685 .id_table = id_table_combined, 686 .no_dynamic_id = 1, 687 }; 688 689 static const char *ftdi_chip_name[] = { 690 [SIO] = "SIO", /* the serial part of FT8U100AX */ 691 [FT8U232AM] = "FT8U232AM", 692 [FT232BM] = "FT232BM", 693 [FT2232C] = "FT2232C", 694 [FT232RL] = "FT232RL", 695 }; 696 697 698 /* Constants for read urb and write urb */ 699 #define BUFSZ 512 700 #define PKTSZ 64 701 702 /* rx_flags */ 703 #define THROTTLED 0x01 704 #define ACTUALLY_THROTTLED 0x02 705 706 /* Used for TIOCMIWAIT */ 707 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 708 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 709 /* End TIOCMIWAIT */ 710 711 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 712 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 713 714 /* function prototypes for a FTDI serial converter */ 715 static int ftdi_sio_probe(struct usb_serial *serial, 716 const struct usb_device_id *id); 717 static void ftdi_shutdown(struct usb_serial *serial); 718 static int ftdi_sio_port_probe(struct usb_serial_port *port); 719 static int ftdi_sio_port_remove(struct usb_serial_port *port); 720 static int ftdi_open(struct tty_struct *tty, 721 struct usb_serial_port *port, struct file *filp); 722 static void ftdi_close(struct tty_struct *tty, 723 struct usb_serial_port *port, struct file *filp); 724 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 725 const unsigned char *buf, int count); 726 static int ftdi_write_room(struct tty_struct *tty); 727 static int ftdi_chars_in_buffer(struct tty_struct *tty); 728 static void ftdi_write_bulk_callback(struct urb *urb); 729 static void ftdi_read_bulk_callback(struct urb *urb); 730 static void ftdi_process_read(struct work_struct *work); 731 static void ftdi_set_termios(struct tty_struct *tty, 732 struct usb_serial_port *port, struct ktermios *old); 733 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 734 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 735 unsigned int set, unsigned int clear); 736 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 737 unsigned int cmd, unsigned long arg); 738 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 739 static void ftdi_throttle(struct tty_struct *tty); 740 static void ftdi_unthrottle(struct tty_struct *tty); 741 742 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 743 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 744 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 745 static __u32 ftdi_232bm_baud_to_divisor(int baud); 746 747 static struct usb_serial_driver ftdi_sio_device = { 748 .driver = { 749 .owner = THIS_MODULE, 750 .name = "ftdi_sio", 751 }, 752 .description = "FTDI USB Serial Device", 753 .usb_driver = &ftdi_driver , 754 .id_table = id_table_combined, 755 .num_ports = 1, 756 .probe = ftdi_sio_probe, 757 .port_probe = ftdi_sio_port_probe, 758 .port_remove = ftdi_sio_port_remove, 759 .open = ftdi_open, 760 .close = ftdi_close, 761 .throttle = ftdi_throttle, 762 .unthrottle = ftdi_unthrottle, 763 .write = ftdi_write, 764 .write_room = ftdi_write_room, 765 .chars_in_buffer = ftdi_chars_in_buffer, 766 .read_bulk_callback = ftdi_read_bulk_callback, 767 .write_bulk_callback = ftdi_write_bulk_callback, 768 .tiocmget = ftdi_tiocmget, 769 .tiocmset = ftdi_tiocmset, 770 .ioctl = ftdi_ioctl, 771 .set_termios = ftdi_set_termios, 772 .break_ctl = ftdi_break_ctl, 773 .shutdown = ftdi_shutdown, 774 }; 775 776 777 #define WDR_TIMEOUT 5000 /* default urb timeout */ 778 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 779 780 /* High and low are for DTR, RTS etc etc */ 781 #define HIGH 1 782 #define LOW 0 783 784 /* number of outstanding urbs to prevent userspace DoS from happening */ 785 #define URB_UPPER_LIMIT 42 786 787 /* 788 * *************************************************************************** 789 * Utility functions 790 * *************************************************************************** 791 */ 792 793 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 794 { 795 unsigned short int divisor; 796 /* divisor shifted 3 bits to the left */ 797 int divisor3 = base / 2 / baud; 798 if ((divisor3 & 0x7) == 7) 799 divisor3++; /* round x.7/8 up to x+1 */ 800 divisor = divisor3 >> 3; 801 divisor3 &= 0x7; 802 if (divisor3 == 1) 803 divisor |= 0xc000; 804 else if (divisor3 >= 4) 805 divisor |= 0x4000; 806 else if (divisor3 != 0) 807 divisor |= 0x8000; 808 else if (divisor == 1) 809 divisor = 0; /* special case for maximum baud rate */ 810 return divisor; 811 } 812 813 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 814 { 815 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 816 } 817 818 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 819 { 820 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 821 __u32 divisor; 822 /* divisor shifted 3 bits to the left */ 823 int divisor3 = base / 2 / baud; 824 divisor = divisor3 >> 3; 825 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 826 /* Deal with special cases for highest baud rates. */ 827 if (divisor == 1) 828 divisor = 0; 829 else if (divisor == 0x4001) 830 divisor = 1; 831 return divisor; 832 } 833 834 static __u32 ftdi_232bm_baud_to_divisor(int baud) 835 { 836 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 837 } 838 839 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 840 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 841 842 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 843 unsigned int clear) 844 { 845 struct ftdi_private *priv = usb_get_serial_port_data(port); 846 char *buf; 847 unsigned urb_value; 848 int rv; 849 850 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 851 dbg("%s - DTR|RTS not being set|cleared", __func__); 852 return 0; /* no change */ 853 } 854 855 buf = kmalloc(1, GFP_NOIO); 856 if (!buf) 857 return -ENOMEM; 858 859 clear &= ~set; /* 'set' takes precedence over 'clear' */ 860 urb_value = 0; 861 if (clear & TIOCM_DTR) 862 urb_value |= FTDI_SIO_SET_DTR_LOW; 863 if (clear & TIOCM_RTS) 864 urb_value |= FTDI_SIO_SET_RTS_LOW; 865 if (set & TIOCM_DTR) 866 urb_value |= FTDI_SIO_SET_DTR_HIGH; 867 if (set & TIOCM_RTS) 868 urb_value |= FTDI_SIO_SET_RTS_HIGH; 869 rv = usb_control_msg(port->serial->dev, 870 usb_sndctrlpipe(port->serial->dev, 0), 871 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 872 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 873 urb_value, priv->interface, 874 buf, 0, WDR_TIMEOUT); 875 876 kfree(buf); 877 if (rv < 0) { 878 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 879 __func__, 880 (set & TIOCM_DTR) ? "HIGH" : 881 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 882 (set & TIOCM_RTS) ? "HIGH" : 883 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 884 } else { 885 dbg("%s - DTR %s, RTS %s", __func__, 886 (set & TIOCM_DTR) ? "HIGH" : 887 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 888 (set & TIOCM_RTS) ? "HIGH" : 889 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 890 /* FIXME: locking on last_dtr_rts */ 891 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 892 } 893 return rv; 894 } 895 896 897 static __u32 get_ftdi_divisor(struct tty_struct *tty, 898 struct usb_serial_port *port) 899 { /* get_ftdi_divisor */ 900 struct ftdi_private *priv = usb_get_serial_port_data(port); 901 __u32 div_value = 0; 902 int div_okay = 1; 903 int baud; 904 905 /* 906 * The logic involved in setting the baudrate can be cleanly split into 907 * 3 steps. 908 * 1. Standard baud rates are set in tty->termios->c_cflag 909 * 2. If these are not enough, you can set any speed using alt_speed as 910 * follows: 911 * - set tty->termios->c_cflag speed to B38400 912 * - set your real speed in tty->alt_speed; it gets ignored when 913 * alt_speed==0, (or) 914 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 915 * follows: 916 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 917 * this just sets alt_speed to (HI: 57600, VHI: 115200, 918 * SHI: 230400, WARP: 460800) 919 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 920 * 3. You can also set baud rate by setting custom divisor as follows 921 * - set tty->termios->c_cflag speed to B38400 922 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 923 * follows: 924 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 925 * o custom_divisor set to baud_base / your_new_baudrate 926 * ** Step 3 is done courtesy of code borrowed from serial.c 927 * I should really spend some time and separate + move this common 928 * code to serial.c, it is replicated in nearly every serial driver 929 * you see. 930 */ 931 932 /* 1. Get the baud rate from the tty settings, this observes 933 alt_speed hack */ 934 935 baud = tty_get_baud_rate(tty); 936 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 937 938 /* 2. Observe async-compatible custom_divisor hack, update baudrate 939 if needed */ 940 941 if (baud == 38400 && 942 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 943 (priv->custom_divisor)) { 944 baud = priv->baud_base / priv->custom_divisor; 945 dbg("%s - custom divisor %d sets baud rate to %d", 946 __func__, priv->custom_divisor, baud); 947 } 948 949 /* 3. Convert baudrate to device-specific divisor */ 950 951 if (!baud) 952 baud = 9600; 953 switch (priv->chip_type) { 954 case SIO: /* SIO chip */ 955 switch (baud) { 956 case 300: div_value = ftdi_sio_b300; break; 957 case 600: div_value = ftdi_sio_b600; break; 958 case 1200: div_value = ftdi_sio_b1200; break; 959 case 2400: div_value = ftdi_sio_b2400; break; 960 case 4800: div_value = ftdi_sio_b4800; break; 961 case 9600: div_value = ftdi_sio_b9600; break; 962 case 19200: div_value = ftdi_sio_b19200; break; 963 case 38400: div_value = ftdi_sio_b38400; break; 964 case 57600: div_value = ftdi_sio_b57600; break; 965 case 115200: div_value = ftdi_sio_b115200; break; 966 } /* baud */ 967 if (div_value == 0) { 968 dbg("%s - Baudrate (%d) requested is not supported", 969 __func__, baud); 970 div_value = ftdi_sio_b9600; 971 baud = 9600; 972 div_okay = 0; 973 } 974 break; 975 case FT8U232AM: /* 8U232AM chip */ 976 if (baud <= 3000000) { 977 div_value = ftdi_232am_baud_to_divisor(baud); 978 } else { 979 dbg("%s - Baud rate too high!", __func__); 980 baud = 9600; 981 div_value = ftdi_232am_baud_to_divisor(9600); 982 div_okay = 0; 983 } 984 break; 985 case FT232BM: /* FT232BM chip */ 986 case FT2232C: /* FT2232C chip */ 987 case FT232RL: 988 if (baud <= 3000000) { 989 div_value = ftdi_232bm_baud_to_divisor(baud); 990 } else { 991 dbg("%s - Baud rate too high!", __func__); 992 div_value = ftdi_232bm_baud_to_divisor(9600); 993 div_okay = 0; 994 baud = 9600; 995 } 996 break; 997 } /* priv->chip_type */ 998 999 if (div_okay) { 1000 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 1001 __func__, baud, (unsigned long)div_value, 1002 ftdi_chip_name[priv->chip_type]); 1003 } 1004 1005 tty_encode_baud_rate(tty, baud, baud); 1006 return div_value; 1007 } 1008 1009 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 1010 { 1011 struct ftdi_private *priv = usb_get_serial_port_data(port); 1012 char *buf; 1013 __u16 urb_value; 1014 __u16 urb_index; 1015 __u32 urb_index_value; 1016 int rv; 1017 1018 buf = kmalloc(1, GFP_NOIO); 1019 if (!buf) 1020 return -ENOMEM; 1021 1022 urb_index_value = get_ftdi_divisor(tty, port); 1023 urb_value = (__u16)urb_index_value; 1024 urb_index = (__u16)(urb_index_value >> 16); 1025 if (priv->interface) { /* FT2232C */ 1026 urb_index = (__u16)((urb_index << 8) | priv->interface); 1027 } 1028 1029 rv = usb_control_msg(port->serial->dev, 1030 usb_sndctrlpipe(port->serial->dev, 0), 1031 FTDI_SIO_SET_BAUDRATE_REQUEST, 1032 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1033 urb_value, urb_index, 1034 buf, 0, WDR_SHORT_TIMEOUT); 1035 1036 kfree(buf); 1037 return rv; 1038 } 1039 1040 1041 1042 static int get_serial_info(struct usb_serial_port *port, 1043 struct serial_struct __user *retinfo) 1044 { 1045 struct ftdi_private *priv = usb_get_serial_port_data(port); 1046 struct serial_struct tmp; 1047 1048 if (!retinfo) 1049 return -EFAULT; 1050 memset(&tmp, 0, sizeof(tmp)); 1051 tmp.flags = priv->flags; 1052 tmp.baud_base = priv->baud_base; 1053 tmp.custom_divisor = priv->custom_divisor; 1054 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1055 return -EFAULT; 1056 return 0; 1057 } /* get_serial_info */ 1058 1059 1060 static int set_serial_info(struct tty_struct *tty, 1061 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1062 { /* set_serial_info */ 1063 struct ftdi_private *priv = usb_get_serial_port_data(port); 1064 struct serial_struct new_serial; 1065 struct ftdi_private old_priv; 1066 1067 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1068 return -EFAULT; 1069 1070 lock_kernel(); 1071 old_priv = *priv; 1072 1073 /* Do error checking and permission checking */ 1074 1075 if (!capable(CAP_SYS_ADMIN)) { 1076 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1077 (priv->flags & ~ASYNC_USR_MASK))) { 1078 unlock_kernel(); 1079 return -EPERM; 1080 } 1081 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1082 (new_serial.flags & ASYNC_USR_MASK)); 1083 priv->custom_divisor = new_serial.custom_divisor; 1084 goto check_and_exit; 1085 } 1086 1087 if ((new_serial.baud_base != priv->baud_base) && 1088 (new_serial.baud_base < 9600)) { 1089 unlock_kernel(); 1090 return -EINVAL; 1091 } 1092 1093 /* Make the changes - these are privileged changes! */ 1094 1095 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1096 (new_serial.flags & ASYNC_FLAGS)); 1097 priv->custom_divisor = new_serial.custom_divisor; 1098 1099 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1100 1101 check_and_exit: 1102 if ((old_priv.flags & ASYNC_SPD_MASK) != 1103 (priv->flags & ASYNC_SPD_MASK)) { 1104 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1105 tty->alt_speed = 57600; 1106 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1107 tty->alt_speed = 115200; 1108 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1109 tty->alt_speed = 230400; 1110 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1111 tty->alt_speed = 460800; 1112 else 1113 tty->alt_speed = 0; 1114 } 1115 if (((old_priv.flags & ASYNC_SPD_MASK) != 1116 (priv->flags & ASYNC_SPD_MASK)) || 1117 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1118 (old_priv.custom_divisor != priv->custom_divisor))) { 1119 unlock_kernel(); 1120 change_speed(tty, port); 1121 } 1122 else 1123 unlock_kernel(); 1124 return 0; 1125 1126 } /* set_serial_info */ 1127 1128 1129 /* Determine type of FTDI chip based on USB config and descriptor. */ 1130 static void ftdi_determine_type(struct usb_serial_port *port) 1131 { 1132 struct ftdi_private *priv = usb_get_serial_port_data(port); 1133 struct usb_serial *serial = port->serial; 1134 struct usb_device *udev = serial->dev; 1135 unsigned version; 1136 unsigned interfaces; 1137 1138 /* Assume it is not the original SIO device for now. */ 1139 priv->baud_base = 48000000 / 2; 1140 priv->write_offset = 0; 1141 1142 version = le16_to_cpu(udev->descriptor.bcdDevice); 1143 interfaces = udev->actconfig->desc.bNumInterfaces; 1144 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1145 version, interfaces); 1146 if (interfaces > 1) { 1147 int inter; 1148 1149 /* Multiple interfaces. Assume FT2232C. */ 1150 priv->chip_type = FT2232C; 1151 /* Determine interface code. */ 1152 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1153 if (inter == 0) 1154 priv->interface = PIT_SIOA; 1155 else 1156 priv->interface = PIT_SIOB; 1157 /* BM-type devices have a bug where bcdDevice gets set 1158 * to 0x200 when iSerialNumber is 0. */ 1159 if (version < 0x500) { 1160 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1161 __func__); 1162 } 1163 } else if (version < 0x200) { 1164 /* Old device. Assume its the original SIO. */ 1165 priv->chip_type = SIO; 1166 priv->baud_base = 12000000 / 16; 1167 priv->write_offset = 1; 1168 } else if (version < 0x400) { 1169 /* Assume its an FT8U232AM (or FT8U245AM) */ 1170 /* (It might be a BM because of the iSerialNumber bug, 1171 * but it will still work as an AM device.) */ 1172 priv->chip_type = FT8U232AM; 1173 } else if (version < 0x600) { 1174 /* Assume its an FT232BM (or FT245BM) */ 1175 priv->chip_type = FT232BM; 1176 } else { 1177 /* Assume its an FT232R */ 1178 priv->chip_type = FT232RL; 1179 } 1180 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); 1181 } 1182 1183 1184 /* 1185 * *************************************************************************** 1186 * Sysfs Attribute 1187 * *************************************************************************** 1188 */ 1189 1190 static ssize_t show_latency_timer(struct device *dev, 1191 struct device_attribute *attr, char *buf) 1192 { 1193 struct usb_serial_port *port = to_usb_serial_port(dev); 1194 struct ftdi_private *priv = usb_get_serial_port_data(port); 1195 struct usb_device *udev = port->serial->dev; 1196 unsigned short latency = 0; 1197 int rv = 0; 1198 1199 1200 dbg("%s", __func__); 1201 1202 rv = usb_control_msg(udev, 1203 usb_rcvctrlpipe(udev, 0), 1204 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1205 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1206 0, priv->interface, 1207 (char *) &latency, 1, WDR_TIMEOUT); 1208 1209 if (rv < 0) { 1210 dev_err(dev, "Unable to read latency timer: %i\n", rv); 1211 return -EIO; 1212 } 1213 return sprintf(buf, "%i\n", latency); 1214 } 1215 1216 /* Write a new value of the latency timer, in units of milliseconds. */ 1217 static ssize_t store_latency_timer(struct device *dev, 1218 struct device_attribute *attr, const char *valbuf, 1219 size_t count) 1220 { 1221 struct usb_serial_port *port = to_usb_serial_port(dev); 1222 struct ftdi_private *priv = usb_get_serial_port_data(port); 1223 struct usb_device *udev = port->serial->dev; 1224 char buf[1]; 1225 int v = simple_strtoul(valbuf, NULL, 10); 1226 int rv = 0; 1227 1228 dbg("%s: setting latency timer = %i", __func__, v); 1229 1230 rv = usb_control_msg(udev, 1231 usb_sndctrlpipe(udev, 0), 1232 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1233 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1234 v, priv->interface, 1235 buf, 0, WDR_TIMEOUT); 1236 1237 if (rv < 0) { 1238 dev_err(dev, "Unable to write latency timer: %i\n", rv); 1239 return -EIO; 1240 } 1241 1242 return count; 1243 } 1244 1245 /* Write an event character directly to the FTDI register. The ASCII 1246 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1247 static ssize_t store_event_char(struct device *dev, 1248 struct device_attribute *attr, const char *valbuf, size_t count) 1249 { 1250 struct usb_serial_port *port = to_usb_serial_port(dev); 1251 struct ftdi_private *priv = usb_get_serial_port_data(port); 1252 struct usb_device *udev = port->serial->dev; 1253 char buf[1]; 1254 int v = simple_strtoul(valbuf, NULL, 10); 1255 int rv = 0; 1256 1257 dbg("%s: setting event char = %i", __func__, v); 1258 1259 rv = usb_control_msg(udev, 1260 usb_sndctrlpipe(udev, 0), 1261 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1262 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1263 v, priv->interface, 1264 buf, 0, WDR_TIMEOUT); 1265 1266 if (rv < 0) { 1267 dbg("Unable to write event character: %i", rv); 1268 return -EIO; 1269 } 1270 1271 return count; 1272 } 1273 1274 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1275 store_latency_timer); 1276 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1277 1278 static int create_sysfs_attrs(struct usb_serial_port *port) 1279 { 1280 struct ftdi_private *priv = usb_get_serial_port_data(port); 1281 int retval = 0; 1282 1283 dbg("%s", __func__); 1284 1285 /* XXX I've no idea if the original SIO supports the event_char 1286 * sysfs parameter, so I'm playing it safe. */ 1287 if (priv->chip_type != SIO) { 1288 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1289 retval = device_create_file(&port->dev, &dev_attr_event_char); 1290 if ((!retval) && 1291 (priv->chip_type == FT232BM || 1292 priv->chip_type == FT2232C || 1293 priv->chip_type == FT232RL)) { 1294 retval = device_create_file(&port->dev, 1295 &dev_attr_latency_timer); 1296 } 1297 } 1298 return retval; 1299 } 1300 1301 static void remove_sysfs_attrs(struct usb_serial_port *port) 1302 { 1303 struct ftdi_private *priv = usb_get_serial_port_data(port); 1304 1305 dbg("%s", __func__); 1306 1307 /* XXX see create_sysfs_attrs */ 1308 if (priv->chip_type != SIO) { 1309 device_remove_file(&port->dev, &dev_attr_event_char); 1310 if (priv->chip_type == FT232BM || 1311 priv->chip_type == FT2232C || 1312 priv->chip_type == FT232RL) { 1313 device_remove_file(&port->dev, &dev_attr_latency_timer); 1314 } 1315 } 1316 1317 } 1318 1319 /* 1320 * *************************************************************************** 1321 * FTDI driver specific functions 1322 * *************************************************************************** 1323 */ 1324 1325 /* Probe function to check for special devices */ 1326 static int ftdi_sio_probe(struct usb_serial *serial, 1327 const struct usb_device_id *id) 1328 { 1329 struct ftdi_sio_quirk *quirk = 1330 (struct ftdi_sio_quirk *)id->driver_info; 1331 1332 if (quirk && quirk->probe) { 1333 int ret = quirk->probe(serial); 1334 if (ret != 0) 1335 return ret; 1336 } 1337 1338 usb_set_serial_data(serial, (void *)id->driver_info); 1339 1340 return 0; 1341 } 1342 1343 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1344 { 1345 struct ftdi_private *priv; 1346 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1347 1348 1349 dbg("%s", __func__); 1350 1351 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1352 if (!priv) { 1353 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, 1354 sizeof(struct ftdi_private)); 1355 return -ENOMEM; 1356 } 1357 1358 kref_init(&priv->kref); 1359 spin_lock_init(&priv->rx_lock); 1360 spin_lock_init(&priv->tx_lock); 1361 init_waitqueue_head(&priv->delta_msr_wait); 1362 /* This will push the characters through immediately rather 1363 than queue a task to deliver them */ 1364 priv->flags = ASYNC_LOW_LATENCY; 1365 1366 if (quirk && quirk->port_probe) 1367 quirk->port_probe(priv); 1368 1369 /* Increase the size of read buffers */ 1370 kfree(port->bulk_in_buffer); 1371 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1372 if (!port->bulk_in_buffer) { 1373 kfree(priv); 1374 return -ENOMEM; 1375 } 1376 if (port->read_urb) { 1377 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1378 port->read_urb->transfer_buffer_length = BUFSZ; 1379 } 1380 1381 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1382 priv->port = port; 1383 1384 /* Free port's existing write urb and transfer buffer. */ 1385 if (port->write_urb) { 1386 usb_free_urb(port->write_urb); 1387 port->write_urb = NULL; 1388 } 1389 kfree(port->bulk_out_buffer); 1390 port->bulk_out_buffer = NULL; 1391 1392 usb_set_serial_port_data(port, priv); 1393 1394 ftdi_determine_type(port); 1395 create_sysfs_attrs(port); 1396 return 0; 1397 } 1398 1399 /* Setup for the USB-UIRT device, which requires hardwired 1400 * baudrate (38400 gets mapped to 312500) */ 1401 /* Called from usbserial:serial_probe */ 1402 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1403 { 1404 dbg("%s", __func__); 1405 1406 priv->flags |= ASYNC_SPD_CUST; 1407 priv->custom_divisor = 77; 1408 priv->force_baud = 38400; 1409 } /* ftdi_USB_UIRT_setup */ 1410 1411 /* Setup for the HE-TIRA1 device, which requires hardwired 1412 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1413 1414 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1415 { 1416 dbg("%s", __func__); 1417 1418 priv->flags |= ASYNC_SPD_CUST; 1419 priv->custom_divisor = 240; 1420 priv->force_baud = 38400; 1421 priv->force_rtscts = 1; 1422 } /* ftdi_HE_TIRA1_setup */ 1423 1424 /* 1425 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1426 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1427 * userspace using openocd. 1428 */ 1429 static int ftdi_jtag_probe(struct usb_serial *serial) 1430 { 1431 struct usb_device *udev = serial->dev; 1432 struct usb_interface *interface = serial->interface; 1433 1434 dbg("%s", __func__); 1435 1436 if (interface == udev->actconfig->interface[0]) { 1437 dev_info(&udev->dev, 1438 "Ignoring serial port reserved for JTAG\n"); 1439 return -ENODEV; 1440 } 1441 1442 return 0; 1443 } 1444 1445 /* 1446 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1447 * We have to correct it if we want to read from it. 1448 */ 1449 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1450 { 1451 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1452 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1453 1454 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1455 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1456 dev_info(&serial->dev->dev, 1457 "Fixing invalid wMaxPacketSize on read pipe\n"); 1458 } 1459 1460 return 0; 1461 } 1462 1463 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect 1464 * it is called when the usb device is disconnected 1465 * 1466 * usbserial:usb_serial_disconnect 1467 * calls __serial_close for each open of the port 1468 * shutdown is called then (ie ftdi_shutdown) 1469 */ 1470 static void ftdi_shutdown(struct usb_serial *serial) 1471 { 1472 dbg("%s", __func__); 1473 } 1474 1475 static void ftdi_sio_priv_release(struct kref *k) 1476 { 1477 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); 1478 1479 kfree(priv); 1480 } 1481 1482 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1483 { 1484 struct ftdi_private *priv = usb_get_serial_port_data(port); 1485 1486 dbg("%s", __func__); 1487 1488 remove_sysfs_attrs(port); 1489 1490 /* all open ports are closed at this point 1491 * (by usbserial.c:__serial_close, which calls ftdi_close) 1492 */ 1493 1494 if (priv) { 1495 usb_set_serial_port_data(port, NULL); 1496 kref_put(&priv->kref, ftdi_sio_priv_release); 1497 } 1498 1499 return 0; 1500 } 1501 1502 static int ftdi_open(struct tty_struct *tty, 1503 struct usb_serial_port *port, struct file *filp) 1504 { /* ftdi_open */ 1505 struct usb_device *dev = port->serial->dev; 1506 struct ftdi_private *priv = usb_get_serial_port_data(port); 1507 unsigned long flags; 1508 1509 int result = 0; 1510 char buf[1]; /* Needed for the usb_control_msg I think */ 1511 1512 dbg("%s", __func__); 1513 1514 spin_lock_irqsave(&priv->tx_lock, flags); 1515 priv->tx_bytes = 0; 1516 spin_unlock_irqrestore(&priv->tx_lock, flags); 1517 spin_lock_irqsave(&priv->rx_lock, flags); 1518 priv->rx_bytes = 0; 1519 spin_unlock_irqrestore(&priv->rx_lock, flags); 1520 1521 if (tty) 1522 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1523 1524 /* No error checking for this (will get errors later anyway) */ 1525 /* See ftdi_sio.h for description of what is reset */ 1526 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1527 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1528 FTDI_SIO_RESET_SIO, 1529 priv->interface, buf, 0, WDR_TIMEOUT); 1530 1531 /* Termios defaults are set by usb_serial_init. We don't change 1532 port->tty->termios - this would lose speed settings, etc. 1533 This is same behaviour as serial.c/rs_open() - Kuba */ 1534 1535 /* ftdi_set_termios will send usb control messages */ 1536 if (tty) 1537 ftdi_set_termios(tty, port, tty->termios); 1538 1539 /* FIXME: Flow control might be enabled, so it should be checked - 1540 we have no control of defaults! */ 1541 /* Turn on RTS and DTR since we are not flow controlling by default */ 1542 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1543 1544 /* Not throttled */ 1545 spin_lock_irqsave(&priv->rx_lock, flags); 1546 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1547 spin_unlock_irqrestore(&priv->rx_lock, flags); 1548 1549 /* Start reading from the device */ 1550 priv->rx_processed = 0; 1551 usb_fill_bulk_urb(port->read_urb, dev, 1552 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1553 port->read_urb->transfer_buffer, 1554 port->read_urb->transfer_buffer_length, 1555 ftdi_read_bulk_callback, port); 1556 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1557 if (result) 1558 dev_err(&port->dev, 1559 "%s - failed submitting read urb, error %d\n", 1560 __func__, result); 1561 else 1562 kref_get(&priv->kref); 1563 1564 return result; 1565 } /* ftdi_open */ 1566 1567 1568 1569 /* 1570 * usbserial:__serial_close only calls ftdi_close if the point is open 1571 * 1572 * This only gets called when it is the last close 1573 * 1574 * 1575 */ 1576 1577 static void ftdi_close(struct tty_struct *tty, 1578 struct usb_serial_port *port, struct file *filp) 1579 { /* ftdi_close */ 1580 unsigned int c_cflag = tty->termios->c_cflag; 1581 struct ftdi_private *priv = usb_get_serial_port_data(port); 1582 char buf[1]; 1583 1584 dbg("%s", __func__); 1585 1586 mutex_lock(&port->serial->disc_mutex); 1587 if (c_cflag & HUPCL && !port->serial->disconnected) { 1588 /* Disable flow control */ 1589 if (usb_control_msg(port->serial->dev, 1590 usb_sndctrlpipe(port->serial->dev, 0), 1591 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1592 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1593 0, priv->interface, buf, 0, 1594 WDR_TIMEOUT) < 0) { 1595 dev_err(&port->dev, "error from flowcontrol urb\n"); 1596 } 1597 1598 /* drop RTS and DTR */ 1599 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1600 } /* Note change no line if hupcl is off */ 1601 mutex_unlock(&port->serial->disc_mutex); 1602 1603 /* cancel any scheduled reading */ 1604 cancel_delayed_work_sync(&priv->rx_work); 1605 1606 /* shutdown our bulk read */ 1607 usb_kill_urb(port->read_urb); 1608 kref_put(&priv->kref, ftdi_sio_priv_release); 1609 } /* ftdi_close */ 1610 1611 1612 1613 /* The SIO requires the first byte to have: 1614 * B0 1 1615 * B1 0 1616 * B2..7 length of message excluding byte 0 1617 * 1618 * The new devices do not require this byte 1619 */ 1620 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1621 const unsigned char *buf, int count) 1622 { /* ftdi_write */ 1623 struct ftdi_private *priv = usb_get_serial_port_data(port); 1624 struct urb *urb; 1625 unsigned char *buffer; 1626 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1627 int status; 1628 int transfer_size; 1629 unsigned long flags; 1630 1631 dbg("%s port %d, %d bytes", __func__, port->number, count); 1632 1633 if (count == 0) { 1634 dbg("write request of 0 bytes"); 1635 return 0; 1636 } 1637 spin_lock_irqsave(&priv->tx_lock, flags); 1638 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1639 spin_unlock_irqrestore(&priv->tx_lock, flags); 1640 dbg("%s - write limit hit\n", __func__); 1641 return 0; 1642 } 1643 priv->tx_outstanding_urbs++; 1644 spin_unlock_irqrestore(&priv->tx_lock, flags); 1645 1646 data_offset = priv->write_offset; 1647 dbg("data_offset set to %d", data_offset); 1648 1649 /* Determine total transfer size */ 1650 transfer_size = count; 1651 if (data_offset > 0) { 1652 /* Original sio needs control bytes too... */ 1653 transfer_size += (data_offset * 1654 ((count + (PKTSZ - 1 - data_offset)) / 1655 (PKTSZ - data_offset))); 1656 } 1657 1658 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1659 if (!buffer) { 1660 dev_err(&port->dev, 1661 "%s ran out of kernel memory for urb ...\n", __func__); 1662 count = -ENOMEM; 1663 goto error_no_buffer; 1664 } 1665 1666 urb = usb_alloc_urb(0, GFP_ATOMIC); 1667 if (!urb) { 1668 dev_err(&port->dev, "%s - no more free urbs\n", __func__); 1669 count = -ENOMEM; 1670 goto error_no_urb; 1671 } 1672 1673 /* Copy data */ 1674 if (data_offset > 0) { 1675 /* Original sio requires control byte at start of 1676 each packet. */ 1677 int user_pktsz = PKTSZ - data_offset; 1678 int todo = count; 1679 unsigned char *first_byte = buffer; 1680 const unsigned char *current_position = buf; 1681 1682 while (todo > 0) { 1683 if (user_pktsz > todo) 1684 user_pktsz = todo; 1685 /* Write the control byte at the front of the packet*/ 1686 *first_byte = 1 | ((user_pktsz) << 2); 1687 /* Copy data for packet */ 1688 memcpy(first_byte + data_offset, 1689 current_position, user_pktsz); 1690 first_byte += user_pktsz + data_offset; 1691 current_position += user_pktsz; 1692 todo -= user_pktsz; 1693 } 1694 } else { 1695 /* No control byte required. */ 1696 /* Copy in the data to send */ 1697 memcpy(buffer, buf, count); 1698 } 1699 1700 usb_serial_debug_data(debug, &port->dev, __func__, 1701 transfer_size, buffer); 1702 1703 /* fill the buffer and send it */ 1704 usb_fill_bulk_urb(urb, port->serial->dev, 1705 usb_sndbulkpipe(port->serial->dev, 1706 port->bulk_out_endpointAddress), 1707 buffer, transfer_size, 1708 ftdi_write_bulk_callback, port); 1709 1710 status = usb_submit_urb(urb, GFP_ATOMIC); 1711 if (status) { 1712 dev_err(&port->dev, 1713 "%s - failed submitting write urb, error %d\n", 1714 __func__, status); 1715 count = status; 1716 goto error; 1717 } else { 1718 spin_lock_irqsave(&priv->tx_lock, flags); 1719 priv->tx_outstanding_bytes += count; 1720 priv->tx_bytes += count; 1721 spin_unlock_irqrestore(&priv->tx_lock, flags); 1722 } 1723 1724 /* we are done with this urb, so let the host driver 1725 * really free it when it is finished with it */ 1726 usb_free_urb(urb); 1727 1728 dbg("%s write returning: %d", __func__, count); 1729 return count; 1730 error: 1731 usb_free_urb(urb); 1732 error_no_urb: 1733 kfree(buffer); 1734 error_no_buffer: 1735 spin_lock_irqsave(&priv->tx_lock, flags); 1736 priv->tx_outstanding_urbs--; 1737 spin_unlock_irqrestore(&priv->tx_lock, flags); 1738 return count; 1739 } /* ftdi_write */ 1740 1741 1742 /* This function may get called when the device is closed */ 1743 1744 static void ftdi_write_bulk_callback(struct urb *urb) 1745 { 1746 unsigned long flags; 1747 struct usb_serial_port *port = urb->context; 1748 struct ftdi_private *priv; 1749 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1750 unsigned long countback; 1751 int status = urb->status; 1752 1753 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1754 kfree(urb->transfer_buffer); 1755 1756 dbg("%s - port %d", __func__, port->number); 1757 1758 if (status) { 1759 dbg("nonzero write bulk status received: %d", status); 1760 return; 1761 } 1762 1763 priv = usb_get_serial_port_data(port); 1764 if (!priv) { 1765 dbg("%s - bad port private data pointer - exiting", __func__); 1766 return; 1767 } 1768 /* account for transferred data */ 1769 countback = urb->actual_length; 1770 data_offset = priv->write_offset; 1771 if (data_offset > 0) { 1772 /* Subtract the control bytes */ 1773 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ)); 1774 } 1775 spin_lock_irqsave(&priv->tx_lock, flags); 1776 --priv->tx_outstanding_urbs; 1777 priv->tx_outstanding_bytes -= countback; 1778 spin_unlock_irqrestore(&priv->tx_lock, flags); 1779 1780 usb_serial_port_softint(port); 1781 } /* ftdi_write_bulk_callback */ 1782 1783 1784 static int ftdi_write_room(struct tty_struct *tty) 1785 { 1786 struct usb_serial_port *port = tty->driver_data; 1787 struct ftdi_private *priv = usb_get_serial_port_data(port); 1788 int room; 1789 unsigned long flags; 1790 1791 dbg("%s - port %d", __func__, port->number); 1792 1793 spin_lock_irqsave(&priv->tx_lock, flags); 1794 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1795 /* 1796 * We really can take anything the user throws at us 1797 * but let's pick a nice big number to tell the tty 1798 * layer that we have lots of free space 1799 */ 1800 room = 2048; 1801 } else { 1802 room = 0; 1803 } 1804 spin_unlock_irqrestore(&priv->tx_lock, flags); 1805 return room; 1806 } 1807 1808 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1809 { 1810 struct usb_serial_port *port = tty->driver_data; 1811 struct ftdi_private *priv = usb_get_serial_port_data(port); 1812 int buffered; 1813 unsigned long flags; 1814 1815 dbg("%s - port %d", __func__, port->number); 1816 1817 spin_lock_irqsave(&priv->tx_lock, flags); 1818 buffered = (int)priv->tx_outstanding_bytes; 1819 spin_unlock_irqrestore(&priv->tx_lock, flags); 1820 if (buffered < 0) { 1821 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", 1822 __func__); 1823 buffered = 0; 1824 } 1825 return buffered; 1826 } 1827 1828 static void ftdi_read_bulk_callback(struct urb *urb) 1829 { 1830 struct usb_serial_port *port = urb->context; 1831 struct tty_struct *tty; 1832 struct ftdi_private *priv; 1833 unsigned long countread; 1834 unsigned long flags; 1835 int status = urb->status; 1836 1837 if (urb->number_of_packets > 0) { 1838 dev_err(&port->dev, "%s transfer_buffer_length %d " 1839 "actual_length %d number of packets %d\n", __func__, 1840 urb->transfer_buffer_length, 1841 urb->actual_length, urb->number_of_packets); 1842 dev_err(&port->dev, "%s transfer_flags %x\n", __func__, 1843 urb->transfer_flags); 1844 } 1845 1846 dbg("%s - port %d", __func__, port->number); 1847 1848 if (port->port.count <= 0) 1849 return; 1850 1851 tty = tty_port_tty_get(&port->port); 1852 if (!tty) { 1853 dbg("%s - bad tty pointer - exiting", __func__); 1854 return; 1855 } 1856 1857 priv = usb_get_serial_port_data(port); 1858 if (!priv) { 1859 dbg("%s - bad port private data pointer - exiting", __func__); 1860 goto out; 1861 } 1862 1863 if (urb != port->read_urb) 1864 dev_err(&port->dev, "%s - Not my urb!\n", __func__); 1865 1866 if (status) { 1867 /* This will happen at close every time so it is a dbg not an 1868 err */ 1869 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 1870 goto out; 1871 } 1872 1873 /* count data bytes, but not status bytes */ 1874 countread = urb->actual_length; 1875 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ); 1876 spin_lock_irqsave(&priv->rx_lock, flags); 1877 priv->rx_bytes += countread; 1878 spin_unlock_irqrestore(&priv->rx_lock, flags); 1879 1880 ftdi_process_read(&priv->rx_work.work); 1881 out: 1882 tty_kref_put(tty); 1883 } /* ftdi_read_bulk_callback */ 1884 1885 1886 static void ftdi_process_read(struct work_struct *work) 1887 { /* ftdi_process_read */ 1888 struct ftdi_private *priv = 1889 container_of(work, struct ftdi_private, rx_work.work); 1890 struct usb_serial_port *port = priv->port; 1891 struct urb *urb; 1892 struct tty_struct *tty; 1893 char error_flag; 1894 unsigned char *data; 1895 1896 int i; 1897 int result; 1898 int need_flip; 1899 int packet_offset; 1900 unsigned long flags; 1901 1902 dbg("%s - port %d", __func__, port->number); 1903 1904 if (port->port.count <= 0) 1905 return; 1906 1907 tty = tty_port_tty_get(&port->port); 1908 if (!tty) { 1909 dbg("%s - bad tty pointer - exiting", __func__); 1910 return; 1911 } 1912 1913 priv = usb_get_serial_port_data(port); 1914 if (!priv) { 1915 dbg("%s - bad port private data pointer - exiting", __func__); 1916 goto out; 1917 } 1918 1919 urb = port->read_urb; 1920 if (!urb) { 1921 dbg("%s - bad read_urb pointer - exiting", __func__); 1922 goto out; 1923 } 1924 1925 data = urb->transfer_buffer; 1926 1927 if (priv->rx_processed) { 1928 dbg("%s - already processed: %d bytes, %d remain", __func__, 1929 priv->rx_processed, 1930 urb->actual_length - priv->rx_processed); 1931 } else { 1932 /* The first two bytes of every read packet are status */ 1933 if (urb->actual_length > 2) 1934 usb_serial_debug_data(debug, &port->dev, __func__, 1935 urb->actual_length, data); 1936 else 1937 dbg("Status only: %03oo %03oo", data[0], data[1]); 1938 } 1939 1940 1941 /* TO DO -- check for hung up line and handle appropriately: */ 1942 /* send hangup */ 1943 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 1944 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 1945 1946 need_flip = 0; 1947 for (packet_offset = priv->rx_processed; 1948 packet_offset < urb->actual_length; packet_offset += PKTSZ) { 1949 int length; 1950 1951 /* Compare new line status to the old one, signal if different/ 1952 N.B. packet may be processed more than once, but differences 1953 are only processed once. */ 1954 char new_status = data[packet_offset + 0] & 1955 FTDI_STATUS_B0_MASK; 1956 if (new_status != priv->prev_status) { 1957 priv->diff_status |= 1958 new_status ^ priv->prev_status; 1959 wake_up_interruptible(&priv->delta_msr_wait); 1960 priv->prev_status = new_status; 1961 } 1962 1963 length = min_t(u32, PKTSZ, urb->actual_length-packet_offset)-2; 1964 if (length < 0) { 1965 dev_err(&port->dev, "%s - bad packet length: %d\n", 1966 __func__, length+2); 1967 length = 0; 1968 } 1969 1970 if (priv->rx_flags & THROTTLED) { 1971 dbg("%s - throttled", __func__); 1972 break; 1973 } 1974 if (tty_buffer_request_room(tty, length) < length) { 1975 /* break out & wait for throttling/unthrottling to 1976 happen */ 1977 dbg("%s - receive room low", __func__); 1978 break; 1979 } 1980 1981 /* Handle errors and break */ 1982 error_flag = TTY_NORMAL; 1983 /* Although the device uses a bitmask and hence can have 1984 multiple errors on a packet - the order here sets the 1985 priority the error is returned to the tty layer */ 1986 1987 if (data[packet_offset+1] & FTDI_RS_OE) { 1988 error_flag = TTY_OVERRUN; 1989 dbg("OVERRRUN error"); 1990 } 1991 if (data[packet_offset+1] & FTDI_RS_BI) { 1992 error_flag = TTY_BREAK; 1993 dbg("BREAK received"); 1994 } 1995 if (data[packet_offset+1] & FTDI_RS_PE) { 1996 error_flag = TTY_PARITY; 1997 dbg("PARITY error"); 1998 } 1999 if (data[packet_offset+1] & FTDI_RS_FE) { 2000 error_flag = TTY_FRAME; 2001 dbg("FRAMING error"); 2002 } 2003 if (length > 0) { 2004 for (i = 2; i < length+2; i++) { 2005 /* Note that the error flag is duplicated for 2006 every character received since we don't know 2007 which character it applied to */ 2008 tty_insert_flip_char(tty, 2009 data[packet_offset + i], error_flag); 2010 } 2011 need_flip = 1; 2012 } 2013 2014 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 2015 /* if a parity error is detected you get status packets forever 2016 until a character is sent without a parity error. 2017 This doesn't work well since the application receives a 2018 never ending stream of bad data - even though new data 2019 hasn't been sent. Therefore I (bill) have taken this out. 2020 However - this might make sense for framing errors and so on 2021 so I am leaving the code in for now. 2022 */ 2023 else { 2024 if (error_flag != TTY_NORMAL) { 2025 dbg("error_flag is not normal"); 2026 /* In this case it is just status - if that is 2027 an error send a bad character */ 2028 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 2029 tty_flip_buffer_push(tty); 2030 tty_insert_flip_char(tty, 0xff, error_flag); 2031 need_flip = 1; 2032 } 2033 } 2034 #endif 2035 } /* "for(packet_offset=0..." */ 2036 2037 /* Low latency */ 2038 if (need_flip) 2039 tty_flip_buffer_push(tty); 2040 2041 if (packet_offset < urb->actual_length) { 2042 /* not completely processed - record progress */ 2043 priv->rx_processed = packet_offset; 2044 dbg("%s - incomplete, %d bytes processed, %d remain", 2045 __func__, packet_offset, 2046 urb->actual_length - packet_offset); 2047 /* check if we were throttled while processing */ 2048 spin_lock_irqsave(&priv->rx_lock, flags); 2049 if (priv->rx_flags & THROTTLED) { 2050 priv->rx_flags |= ACTUALLY_THROTTLED; 2051 spin_unlock_irqrestore(&priv->rx_lock, flags); 2052 dbg("%s - deferring remainder until unthrottled", 2053 __func__); 2054 goto out; 2055 } 2056 spin_unlock_irqrestore(&priv->rx_lock, flags); 2057 /* if the port is closed stop trying to read */ 2058 if (port->port.count > 0) 2059 /* delay processing of remainder */ 2060 schedule_delayed_work(&priv->rx_work, 1); 2061 else 2062 dbg("%s - port is closed", __func__); 2063 goto out; 2064 } 2065 2066 /* urb is completely processed */ 2067 priv->rx_processed = 0; 2068 2069 /* if the port is closed stop trying to read */ 2070 if (port->port.count > 0) { 2071 /* Continue trying to always read */ 2072 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2073 usb_rcvbulkpipe(port->serial->dev, 2074 port->bulk_in_endpointAddress), 2075 port->read_urb->transfer_buffer, 2076 port->read_urb->transfer_buffer_length, 2077 ftdi_read_bulk_callback, port); 2078 2079 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2080 if (result) 2081 dev_err(&port->dev, 2082 "%s - failed resubmitting read urb, error %d\n", 2083 __func__, result); 2084 } 2085 out: 2086 tty_kref_put(tty); 2087 } /* ftdi_process_read */ 2088 2089 2090 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2091 { 2092 struct usb_serial_port *port = tty->driver_data; 2093 struct ftdi_private *priv = usb_get_serial_port_data(port); 2094 __u16 urb_value = 0; 2095 char buf[1]; 2096 2097 /* break_state = -1 to turn on break, and 0 to turn off break */ 2098 /* see drivers/char/tty_io.c to see it used */ 2099 /* last_set_data_urb_value NEVER has the break bit set in it */ 2100 2101 if (break_state) 2102 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2103 else 2104 urb_value = priv->last_set_data_urb_value; 2105 2106 if (usb_control_msg(port->serial->dev, 2107 usb_sndctrlpipe(port->serial->dev, 0), 2108 FTDI_SIO_SET_DATA_REQUEST, 2109 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2110 urb_value , priv->interface, 2111 buf, 0, WDR_TIMEOUT) < 0) { 2112 dev_err(&port->dev, "%s FAILED to enable/disable break state " 2113 "(state was %d)\n", __func__, break_state); 2114 } 2115 2116 dbg("%s break state is %d - urb is %d", __func__, 2117 break_state, urb_value); 2118 2119 } 2120 2121 2122 /* old_termios contains the original termios settings and tty->termios contains 2123 * the new setting to be used 2124 * WARNING: set_termios calls this with old_termios in kernel space 2125 */ 2126 2127 static void ftdi_set_termios(struct tty_struct *tty, 2128 struct usb_serial_port *port, struct ktermios *old_termios) 2129 { /* ftdi_termios */ 2130 struct usb_device *dev = port->serial->dev; 2131 struct ftdi_private *priv = usb_get_serial_port_data(port); 2132 struct ktermios *termios = tty->termios; 2133 unsigned int cflag = termios->c_cflag; 2134 __u16 urb_value; /* will hold the new flags */ 2135 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2136 2137 /* Added for xon/xoff support */ 2138 unsigned int iflag = termios->c_iflag; 2139 unsigned char vstop; 2140 unsigned char vstart; 2141 2142 dbg("%s", __func__); 2143 2144 /* Force baud rate if this device requires it, unless it is set to 2145 B0. */ 2146 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2147 dbg("%s: forcing baud rate for this device", __func__); 2148 tty_encode_baud_rate(tty, priv->force_baud, 2149 priv->force_baud); 2150 } 2151 2152 /* Force RTS-CTS if this device requires it. */ 2153 if (priv->force_rtscts) { 2154 dbg("%s: forcing rtscts for this device", __func__); 2155 termios->c_cflag |= CRTSCTS; 2156 } 2157 2158 cflag = termios->c_cflag; 2159 2160 /* FIXME -For this cut I don't care if the line is really changing or 2161 not - so just do the change regardless - should be able to 2162 compare old_termios and tty->termios */ 2163 /* NOTE These routines can get interrupted by 2164 ftdi_sio_read_bulk_callback - need to examine what this means - 2165 don't see any problems yet */ 2166 2167 /* Set number of data bits, parity, stop bits */ 2168 2169 termios->c_cflag &= ~CMSPAR; 2170 2171 urb_value = 0; 2172 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2173 FTDI_SIO_SET_DATA_STOP_BITS_1); 2174 urb_value |= (cflag & PARENB ? 2175 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2176 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2177 FTDI_SIO_SET_DATA_PARITY_NONE); 2178 if (cflag & CSIZE) { 2179 switch (cflag & CSIZE) { 2180 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2181 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2182 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2183 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2184 default: 2185 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); 2186 } 2187 } 2188 2189 /* This is needed by the break command since it uses the same command 2190 - but is or'ed with this value */ 2191 priv->last_set_data_urb_value = urb_value; 2192 2193 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2194 FTDI_SIO_SET_DATA_REQUEST, 2195 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2196 urb_value , priv->interface, 2197 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2198 dev_err(&port->dev, "%s FAILED to set " 2199 "databits/stopbits/parity\n", __func__); 2200 } 2201 2202 /* Now do the baudrate */ 2203 if ((cflag & CBAUD) == B0) { 2204 /* Disable flow control */ 2205 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2206 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2207 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2208 0, priv->interface, 2209 buf, 0, WDR_TIMEOUT) < 0) { 2210 dev_err(&port->dev, 2211 "%s error from disable flowcontrol urb\n", 2212 __func__); 2213 } 2214 /* Drop RTS and DTR */ 2215 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2216 } else { 2217 /* set the baudrate determined before */ 2218 if (change_speed(tty, port)) 2219 dev_err(&port->dev, "%s urb failed to set baudrate\n", 2220 __func__); 2221 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2222 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2223 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2224 } 2225 2226 /* Set flow control */ 2227 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2228 if (cflag & CRTSCTS) { 2229 dbg("%s Setting to CRTSCTS flow control", __func__); 2230 if (usb_control_msg(dev, 2231 usb_sndctrlpipe(dev, 0), 2232 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2233 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2234 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2235 buf, 0, WDR_TIMEOUT) < 0) { 2236 dev_err(&port->dev, 2237 "urb failed to set to rts/cts flow control\n"); 2238 } 2239 2240 } else { 2241 /* 2242 * Xon/Xoff code 2243 * 2244 * Check the IXOFF status in the iflag component of the 2245 * termios structure. If IXOFF is not set, the pre-xon/xoff 2246 * code is executed. 2247 */ 2248 if (iflag & IXOFF) { 2249 dbg("%s request to enable xonxoff iflag=%04x", 2250 __func__, iflag); 2251 /* Try to enable the XON/XOFF on the ftdi_sio 2252 * Set the vstart and vstop -- could have been done up 2253 * above where a lot of other dereferencing is done but 2254 * that would be very inefficient as vstart and vstop 2255 * are not always needed. 2256 */ 2257 vstart = termios->c_cc[VSTART]; 2258 vstop = termios->c_cc[VSTOP]; 2259 urb_value = (vstop << 8) | (vstart); 2260 2261 if (usb_control_msg(dev, 2262 usb_sndctrlpipe(dev, 0), 2263 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2264 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2265 urb_value , (FTDI_SIO_XON_XOFF_HS 2266 | priv->interface), 2267 buf, 0, WDR_TIMEOUT) < 0) { 2268 dev_err(&port->dev, "urb failed to set to " 2269 "xon/xoff flow control\n"); 2270 } 2271 } else { 2272 /* else clause to only run if cflag ! CRTSCTS and iflag 2273 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2274 * stack - not by device */ 2275 dbg("%s Turning off hardware flow control", __func__); 2276 if (usb_control_msg(dev, 2277 usb_sndctrlpipe(dev, 0), 2278 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2279 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2280 0, priv->interface, 2281 buf, 0, WDR_TIMEOUT) < 0) { 2282 dev_err(&port->dev, 2283 "urb failed to clear flow control\n"); 2284 } 2285 } 2286 2287 } 2288 return; 2289 } 2290 2291 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2292 { 2293 struct usb_serial_port *port = tty->driver_data; 2294 struct ftdi_private *priv = usb_get_serial_port_data(port); 2295 unsigned char buf[2]; 2296 int ret; 2297 2298 dbg("%s TIOCMGET", __func__); 2299 switch (priv->chip_type) { 2300 case SIO: 2301 /* Request the status from the device */ 2302 ret = usb_control_msg(port->serial->dev, 2303 usb_rcvctrlpipe(port->serial->dev, 0), 2304 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2305 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2306 0, 0, 2307 buf, 1, WDR_TIMEOUT); 2308 if (ret < 0) 2309 return ret; 2310 break; 2311 case FT8U232AM: 2312 case FT232BM: 2313 case FT2232C: 2314 case FT232RL: 2315 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2316 value) - in the same format as the data returned from the in 2317 point */ 2318 ret = usb_control_msg(port->serial->dev, 2319 usb_rcvctrlpipe(port->serial->dev, 0), 2320 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2321 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2322 0, priv->interface, 2323 buf, 2, WDR_TIMEOUT); 2324 if (ret < 0) 2325 return ret; 2326 break; 2327 default: 2328 return -EFAULT; 2329 } 2330 2331 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2332 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2333 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2334 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2335 priv->last_dtr_rts; 2336 } 2337 2338 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2339 unsigned int set, unsigned int clear) 2340 { 2341 struct usb_serial_port *port = tty->driver_data; 2342 dbg("%s TIOCMSET", __func__); 2343 return update_mctrl(port, set, clear); 2344 } 2345 2346 2347 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2348 unsigned int cmd, unsigned long arg) 2349 { 2350 struct usb_serial_port *port = tty->driver_data; 2351 struct ftdi_private *priv = usb_get_serial_port_data(port); 2352 2353 dbg("%s cmd 0x%04x", __func__, cmd); 2354 2355 /* Based on code from acm.c and others */ 2356 switch (cmd) { 2357 2358 case TIOCGSERIAL: /* gets serial port data */ 2359 return get_serial_info(port, 2360 (struct serial_struct __user *) arg); 2361 2362 case TIOCSSERIAL: /* sets serial port data */ 2363 return set_serial_info(tty, port, 2364 (struct serial_struct __user *) arg); 2365 2366 /* 2367 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2368 * - mask passed in arg for lines of interest 2369 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2370 * Caller should use TIOCGICOUNT to see which one it was. 2371 * 2372 * This code is borrowed from linux/drivers/char/serial.c 2373 */ 2374 case TIOCMIWAIT: 2375 while (priv != NULL) { 2376 interruptible_sleep_on(&priv->delta_msr_wait); 2377 /* see if a signal did it */ 2378 if (signal_pending(current)) 2379 return -ERESTARTSYS; 2380 else { 2381 char diff = priv->diff_status; 2382 2383 if (diff == 0) 2384 return -EIO; /* no change => error */ 2385 2386 /* Consume all events */ 2387 priv->diff_status = 0; 2388 2389 /* Return 0 if caller wanted to know about 2390 these bits */ 2391 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2392 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2393 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2394 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2395 return 0; 2396 } 2397 /* 2398 * Otherwise caller can't care less about what 2399 * happened,and so we continue to wait for more 2400 * events. 2401 */ 2402 } 2403 } 2404 return 0; 2405 default: 2406 break; 2407 } 2408 /* This is not necessarily an error - turns out the higher layers 2409 * will do some ioctls themselves (see comment above) 2410 */ 2411 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2412 return -ENOIOCTLCMD; 2413 } 2414 2415 static void ftdi_throttle(struct tty_struct *tty) 2416 { 2417 struct usb_serial_port *port = tty->driver_data; 2418 struct ftdi_private *priv = usb_get_serial_port_data(port); 2419 unsigned long flags; 2420 2421 dbg("%s - port %d", __func__, port->number); 2422 2423 spin_lock_irqsave(&priv->rx_lock, flags); 2424 priv->rx_flags |= THROTTLED; 2425 spin_unlock_irqrestore(&priv->rx_lock, flags); 2426 } 2427 2428 2429 static void ftdi_unthrottle(struct tty_struct *tty) 2430 { 2431 struct usb_serial_port *port = tty->driver_data; 2432 struct ftdi_private *priv = usb_get_serial_port_data(port); 2433 int actually_throttled; 2434 unsigned long flags; 2435 2436 dbg("%s - port %d", __func__, port->number); 2437 2438 spin_lock_irqsave(&priv->rx_lock, flags); 2439 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2440 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2441 spin_unlock_irqrestore(&priv->rx_lock, flags); 2442 2443 if (actually_throttled) 2444 schedule_delayed_work(&priv->rx_work, 0); 2445 } 2446 2447 static int __init ftdi_init(void) 2448 { 2449 int retval; 2450 2451 dbg("%s", __func__); 2452 if (vendor > 0 && product > 0) { 2453 /* Add user specified VID/PID to reserved element of table. */ 2454 int i; 2455 for (i = 0; id_table_combined[i].idVendor; i++) 2456 ; 2457 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2458 id_table_combined[i].idVendor = vendor; 2459 id_table_combined[i].idProduct = product; 2460 } 2461 retval = usb_serial_register(&ftdi_sio_device); 2462 if (retval) 2463 goto failed_sio_register; 2464 retval = usb_register(&ftdi_driver); 2465 if (retval) 2466 goto failed_usb_register; 2467 2468 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 2469 DRIVER_DESC "\n"); 2470 return 0; 2471 failed_usb_register: 2472 usb_serial_deregister(&ftdi_sio_device); 2473 failed_sio_register: 2474 return retval; 2475 } 2476 2477 2478 static void __exit ftdi_exit(void) 2479 { 2480 2481 dbg("%s", __func__); 2482 2483 usb_deregister(&ftdi_driver); 2484 usb_serial_deregister(&ftdi_sio_device); 2485 2486 } 2487 2488 2489 module_init(ftdi_init); 2490 module_exit(ftdi_exit); 2491 2492 MODULE_AUTHOR(DRIVER_AUTHOR); 2493 MODULE_DESCRIPTION(DRIVER_DESC); 2494 MODULE_LICENSE("GPL"); 2495 2496 module_param(debug, bool, S_IRUGO | S_IWUSR); 2497 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2498 module_param(vendor, ushort, 0); 2499 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2500 __MODULE_STRING(FTDI_VID)")"); 2501 module_param(product, ushort, 0); 2502 MODULE_PARM_DESC(product, "User specified product ID"); 2503 2504