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