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_SCS_DEVICE_0_PID) }, 147 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) }, 148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) }, 149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) }, 150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) }, 151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) }, 152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) }, 153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) }, 154 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, 155 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, 156 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, 157 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) }, 158 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) }, 159 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) }, 160 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) }, 161 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) }, 162 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) }, 163 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) }, 164 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) }, 165 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) }, 166 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) }, 167 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) }, 168 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) }, 169 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) }, 170 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) }, 171 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) }, 172 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) }, 173 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) }, 174 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) }, 175 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) }, 176 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) }, 177 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) }, 178 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) }, 179 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) }, 180 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) }, 181 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) }, 182 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) }, 183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) }, 184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) }, 185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) }, 186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) }, 187 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) }, 188 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) }, 189 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) }, 190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) }, 191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) }, 192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) }, 193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) }, 194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) }, 195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) }, 196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) }, 197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) }, 198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) }, 199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) }, 200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) }, 201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) }, 202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) }, 203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) }, 204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) }, 205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) }, 206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) }, 207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) }, 208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) }, 209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) }, 210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) }, 211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) }, 212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) }, 213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) }, 214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) }, 215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) }, 216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) }, 217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) }, 218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) }, 219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) }, 220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) }, 221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) }, 222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) }, 223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) }, 224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) }, 225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) }, 226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID), 227 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) }, 229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) }, 230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) }, 231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) }, 232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID), 233 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) }, 235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) }, 236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) }, 237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) }, 238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) }, 239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) }, 240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) }, 241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) }, 242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) }, 243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) }, 244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) }, 245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) }, 246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) }, 247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) }, 248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) }, 249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) }, 250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) }, 251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) }, 252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) }, 253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) }, 254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) }, 255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) }, 256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) }, 257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) }, 258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) }, 259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) }, 260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) }, 261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) }, 262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) }, 263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) }, 264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) }, 265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) }, 266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) }, 267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) }, 268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) }, 269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) }, 270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) }, 271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) }, 272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID), 273 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID), 275 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID), 277 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID), 279 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID), 281 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID), 283 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, 284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) }, 285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) }, 286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) }, 287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) }, 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) }, 289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) }, 290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) }, 291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) }, 292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) }, 293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) }, 294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) }, 295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) }, 296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) }, 297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) }, 298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) }, 299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) }, 300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) }, 301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) }, 302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) }, 303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) }, 304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) }, 305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) }, 306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) }, 307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) }, 308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) }, 309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) }, 310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) }, 311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) }, 312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) }, 313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) }, 314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) }, 315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) }, 316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) }, 317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) }, 318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) }, 319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) }, 320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) }, 321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) }, 322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) }, 323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) }, 324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) }, 325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) }, 326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) }, 327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) }, 328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) }, 329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) }, 330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) }, 331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) }, 332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) }, 333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) }, 334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) }, 335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) }, 336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) }, 337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) }, 338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) }, 339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) }, 340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) }, 341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) }, 342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) }, 343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) }, 344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) }, 345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) }, 346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) }, 347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) }, 348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) }, 349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) }, 350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) }, 351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) }, 352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) }, 353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) }, 354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) }, 355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) }, 356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) }, 357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) }, 358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) }, 359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) }, 360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) }, 361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) }, 362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) }, 363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) }, 364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) }, 365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) }, 366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) }, 367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) }, 368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) }, 369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) }, 370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) }, 371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) }, 372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) }, 373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) }, 374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) }, 375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) }, 376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) }, 377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) }, 378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) }, 379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) }, 380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) }, 381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) }, 382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) }, 383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) }, 384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) }, 385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) }, 386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) }, 387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) }, 388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) }, 389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) }, 390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) }, 391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) }, 392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) }, 393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) }, 394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) }, 395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) }, 396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) }, 397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) }, 398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) }, 399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) }, 400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) }, 401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) }, 402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) }, 403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) }, 404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) }, 405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) }, 406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) }, 407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) }, 408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) }, 409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) }, 410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) }, 411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) }, 412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) }, 413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) }, 414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) }, 415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) }, 416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) }, 417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) }, 418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) }, 419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) }, 420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) }, 421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) }, 422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) }, 423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) }, 424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) }, 425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) }, 426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) }, 427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) }, 428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) }, 429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) }, 430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) }, 431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) }, 432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) }, 433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) }, 434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) }, 435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) }, 436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) }, 437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) }, 438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) }, 439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) }, 440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) }, 441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) }, 442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) }, 443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) }, 444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) }, 445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) }, 446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) }, 447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) }, 448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) }, 449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) }, 450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) }, 451 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) }, 452 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) }, 453 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) }, 454 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) }, 455 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) }, 456 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) }, 457 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) }, 458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) }, 459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) }, 460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) }, 461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) }, 462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) }, 463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) }, 464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) }, 465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) }, 466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) }, 467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) }, 468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) }, 469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) }, 470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) }, 471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) }, 472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) }, 473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) }, 474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) }, 475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) }, 476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) }, 477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) }, 478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) }, 479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) }, 480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) }, 481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) }, 482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) }, 483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) }, 484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) }, 485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) }, 486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) }, 487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) }, 488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) }, 489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) }, 490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) }, 491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) }, 492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) }, 493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) }, 494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) }, 495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) }, 496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) }, 497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) }, 498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) }, 499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) }, 500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) }, 501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) }, 502 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) }, 503 { USB_DEVICE(OCT_VID, OCT_US101_PID) }, 504 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID), 505 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk }, 506 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID), 507 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk }, 508 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) }, 509 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) }, 510 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) }, 511 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) }, 512 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) }, 513 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) }, 514 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) }, 515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) }, 516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) }, 517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) }, 518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) }, 519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) }, 520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) }, 521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) }, 522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) }, 523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) }, 524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) }, 525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) }, 526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) }, 527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) }, 528 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) }, 529 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) }, 530 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) }, 531 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) }, 532 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) }, 533 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) }, 534 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) }, 535 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) }, 536 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) }, 537 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) }, 538 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) }, 539 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) }, 540 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) }, 541 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) }, 542 /* 543 * Due to many user requests for multiple ELV devices we enable 544 * them by default. 545 */ 546 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) }, 547 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) }, 548 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) }, 549 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) }, 550 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) }, 551 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) }, 552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) }, 553 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) }, 554 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) }, 555 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) }, 556 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) }, 557 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) }, 558 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) }, 559 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) }, 560 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) }, 561 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) }, 562 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) }, 563 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) }, 564 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) }, 565 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) }, 566 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, 567 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, 568 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) }, 569 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) }, 570 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) }, 571 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) }, 572 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) }, 573 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) }, 574 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) }, 575 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) }, 576 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) }, 577 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) }, 578 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) }, 579 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) }, 580 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, 581 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, 582 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, 583 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, 584 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, 585 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, 586 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, 587 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, 588 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) }, 589 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) }, 590 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) }, 591 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) }, 592 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) }, 593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) }, 594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) }, 595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) }, 596 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, 597 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, 598 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) }, 599 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) }, 600 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) }, 601 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) }, 602 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) }, 603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) }, 604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) }, 605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) }, 606 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) }, 607 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) }, 608 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, 609 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, 610 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, 611 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, 612 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, 613 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, 614 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) }, 615 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) }, 616 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) }, 617 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) }, 618 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) }, 619 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) }, 620 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) }, 621 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) }, 622 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) }, 623 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) }, 624 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, 625 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, 626 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, 627 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, 628 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, 629 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) }, 630 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) }, 631 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) }, 632 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) }, 633 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) }, 634 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) }, 635 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) }, 636 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) }, 637 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) }, 638 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, 639 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, 640 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, 641 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, 642 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, 643 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), 644 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 645 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), 646 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 647 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), 648 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 649 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, 650 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, 651 { }, /* Optional parameter entry */ 652 { } /* Terminating entry */ 653 }; 654 655 MODULE_DEVICE_TABLE(usb, id_table_combined); 656 657 static struct usb_driver ftdi_driver = { 658 .name = "ftdi_sio", 659 .probe = usb_serial_probe, 660 .disconnect = usb_serial_disconnect, 661 .id_table = id_table_combined, 662 .no_dynamic_id = 1, 663 }; 664 665 static const char *ftdi_chip_name[] = { 666 [SIO] = "SIO", /* the serial part of FT8U100AX */ 667 [FT8U232AM] = "FT8U232AM", 668 [FT232BM] = "FT232BM", 669 [FT2232C] = "FT2232C", 670 [FT232RL] = "FT232RL", 671 }; 672 673 674 /* Constants for read urb and write urb */ 675 #define BUFSZ 512 676 #define PKTSZ 64 677 678 /* rx_flags */ 679 #define THROTTLED 0x01 680 #define ACTUALLY_THROTTLED 0x02 681 682 /* Used for TIOCMIWAIT */ 683 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 684 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 685 /* End TIOCMIWAIT */ 686 687 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 688 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 689 690 /* function prototypes for a FTDI serial converter */ 691 static int ftdi_sio_probe(struct usb_serial *serial, 692 const struct usb_device_id *id); 693 static void ftdi_shutdown(struct usb_serial *serial); 694 static int ftdi_sio_port_probe(struct usb_serial_port *port); 695 static int ftdi_sio_port_remove(struct usb_serial_port *port); 696 static int ftdi_open(struct tty_struct *tty, 697 struct usb_serial_port *port, struct file *filp); 698 static void ftdi_close(struct tty_struct *tty, 699 struct usb_serial_port *port, struct file *filp); 700 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 701 const unsigned char *buf, int count); 702 static int ftdi_write_room(struct tty_struct *tty); 703 static int ftdi_chars_in_buffer(struct tty_struct *tty); 704 static void ftdi_write_bulk_callback(struct urb *urb); 705 static void ftdi_read_bulk_callback(struct urb *urb); 706 static void ftdi_process_read(struct work_struct *work); 707 static void ftdi_set_termios(struct tty_struct *tty, 708 struct usb_serial_port *port, struct ktermios *old); 709 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 710 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 711 unsigned int set, unsigned int clear); 712 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 713 unsigned int cmd, unsigned long arg); 714 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 715 static void ftdi_throttle(struct tty_struct *tty); 716 static void ftdi_unthrottle(struct tty_struct *tty); 717 718 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 719 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 720 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 721 static __u32 ftdi_232bm_baud_to_divisor(int baud); 722 723 static struct usb_serial_driver ftdi_sio_device = { 724 .driver = { 725 .owner = THIS_MODULE, 726 .name = "ftdi_sio", 727 }, 728 .description = "FTDI USB Serial Device", 729 .usb_driver = &ftdi_driver , 730 .id_table = id_table_combined, 731 .num_ports = 1, 732 .probe = ftdi_sio_probe, 733 .port_probe = ftdi_sio_port_probe, 734 .port_remove = ftdi_sio_port_remove, 735 .open = ftdi_open, 736 .close = ftdi_close, 737 .throttle = ftdi_throttle, 738 .unthrottle = ftdi_unthrottle, 739 .write = ftdi_write, 740 .write_room = ftdi_write_room, 741 .chars_in_buffer = ftdi_chars_in_buffer, 742 .read_bulk_callback = ftdi_read_bulk_callback, 743 .write_bulk_callback = ftdi_write_bulk_callback, 744 .tiocmget = ftdi_tiocmget, 745 .tiocmset = ftdi_tiocmset, 746 .ioctl = ftdi_ioctl, 747 .set_termios = ftdi_set_termios, 748 .break_ctl = ftdi_break_ctl, 749 .shutdown = ftdi_shutdown, 750 }; 751 752 753 #define WDR_TIMEOUT 5000 /* default urb timeout */ 754 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 755 756 /* High and low are for DTR, RTS etc etc */ 757 #define HIGH 1 758 #define LOW 0 759 760 /* number of outstanding urbs to prevent userspace DoS from happening */ 761 #define URB_UPPER_LIMIT 42 762 763 /* 764 * *************************************************************************** 765 * Utility functions 766 * *************************************************************************** 767 */ 768 769 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 770 { 771 unsigned short int divisor; 772 /* divisor shifted 3 bits to the left */ 773 int divisor3 = base / 2 / baud; 774 if ((divisor3 & 0x7) == 7) 775 divisor3++; /* round x.7/8 up to x+1 */ 776 divisor = divisor3 >> 3; 777 divisor3 &= 0x7; 778 if (divisor3 == 1) 779 divisor |= 0xc000; 780 else if (divisor3 >= 4) 781 divisor |= 0x4000; 782 else if (divisor3 != 0) 783 divisor |= 0x8000; 784 else if (divisor == 1) 785 divisor = 0; /* special case for maximum baud rate */ 786 return divisor; 787 } 788 789 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 790 { 791 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 792 } 793 794 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 795 { 796 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 797 __u32 divisor; 798 /* divisor shifted 3 bits to the left */ 799 int divisor3 = base / 2 / baud; 800 divisor = divisor3 >> 3; 801 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 802 /* Deal with special cases for highest baud rates. */ 803 if (divisor == 1) 804 divisor = 0; 805 else if (divisor == 0x4001) 806 divisor = 1; 807 return divisor; 808 } 809 810 static __u32 ftdi_232bm_baud_to_divisor(int baud) 811 { 812 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 813 } 814 815 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 816 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 817 818 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 819 unsigned int clear) 820 { 821 struct ftdi_private *priv = usb_get_serial_port_data(port); 822 char *buf; 823 unsigned urb_value; 824 int rv; 825 826 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 827 dbg("%s - DTR|RTS not being set|cleared", __func__); 828 return 0; /* no change */ 829 } 830 831 buf = kmalloc(1, GFP_NOIO); 832 if (!buf) 833 return -ENOMEM; 834 835 clear &= ~set; /* 'set' takes precedence over 'clear' */ 836 urb_value = 0; 837 if (clear & TIOCM_DTR) 838 urb_value |= FTDI_SIO_SET_DTR_LOW; 839 if (clear & TIOCM_RTS) 840 urb_value |= FTDI_SIO_SET_RTS_LOW; 841 if (set & TIOCM_DTR) 842 urb_value |= FTDI_SIO_SET_DTR_HIGH; 843 if (set & TIOCM_RTS) 844 urb_value |= FTDI_SIO_SET_RTS_HIGH; 845 rv = usb_control_msg(port->serial->dev, 846 usb_sndctrlpipe(port->serial->dev, 0), 847 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 848 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 849 urb_value, priv->interface, 850 buf, 0, WDR_TIMEOUT); 851 852 kfree(buf); 853 if (rv < 0) { 854 err("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 855 __func__, 856 (set & TIOCM_DTR) ? "HIGH" : 857 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 858 (set & TIOCM_RTS) ? "HIGH" : 859 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 860 } else { 861 dbg("%s - DTR %s, RTS %s", __func__, 862 (set & TIOCM_DTR) ? "HIGH" : 863 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 864 (set & TIOCM_RTS) ? "HIGH" : 865 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 866 /* FIXME: locking on last_dtr_rts */ 867 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 868 } 869 return rv; 870 } 871 872 873 static __u32 get_ftdi_divisor(struct tty_struct *tty, 874 struct usb_serial_port *port) 875 { /* get_ftdi_divisor */ 876 struct ftdi_private *priv = usb_get_serial_port_data(port); 877 __u32 div_value = 0; 878 int div_okay = 1; 879 int baud; 880 881 /* 882 * The logic involved in setting the baudrate can be cleanly split into 883 * 3 steps. 884 * 1. Standard baud rates are set in tty->termios->c_cflag 885 * 2. If these are not enough, you can set any speed using alt_speed as 886 * follows: 887 * - set tty->termios->c_cflag speed to B38400 888 * - set your real speed in tty->alt_speed; it gets ignored when 889 * alt_speed==0, (or) 890 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 891 * follows: 892 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 893 * this just sets alt_speed to (HI: 57600, VHI: 115200, 894 * SHI: 230400, WARP: 460800) 895 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 896 * 3. You can also set baud rate by setting custom divisor as follows 897 * - set tty->termios->c_cflag speed to B38400 898 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 899 * follows: 900 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 901 * o custom_divisor set to baud_base / your_new_baudrate 902 * ** Step 3 is done courtesy of code borrowed from serial.c 903 * I should really spend some time and separate + move this common 904 * code to serial.c, it is replicated in nearly every serial driver 905 * you see. 906 */ 907 908 /* 1. Get the baud rate from the tty settings, this observes 909 alt_speed hack */ 910 911 baud = tty_get_baud_rate(tty); 912 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 913 914 /* 2. Observe async-compatible custom_divisor hack, update baudrate 915 if needed */ 916 917 if (baud == 38400 && 918 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 919 (priv->custom_divisor)) { 920 baud = priv->baud_base / priv->custom_divisor; 921 dbg("%s - custom divisor %d sets baud rate to %d", 922 __func__, priv->custom_divisor, baud); 923 } 924 925 /* 3. Convert baudrate to device-specific divisor */ 926 927 if (!baud) 928 baud = 9600; 929 switch (priv->chip_type) { 930 case SIO: /* SIO chip */ 931 switch (baud) { 932 case 300: div_value = ftdi_sio_b300; break; 933 case 600: div_value = ftdi_sio_b600; break; 934 case 1200: div_value = ftdi_sio_b1200; break; 935 case 2400: div_value = ftdi_sio_b2400; break; 936 case 4800: div_value = ftdi_sio_b4800; break; 937 case 9600: div_value = ftdi_sio_b9600; break; 938 case 19200: div_value = ftdi_sio_b19200; break; 939 case 38400: div_value = ftdi_sio_b38400; break; 940 case 57600: div_value = ftdi_sio_b57600; break; 941 case 115200: div_value = ftdi_sio_b115200; break; 942 } /* baud */ 943 if (div_value == 0) { 944 dbg("%s - Baudrate (%d) requested is not supported", 945 __func__, baud); 946 div_value = ftdi_sio_b9600; 947 baud = 9600; 948 div_okay = 0; 949 } 950 break; 951 case FT8U232AM: /* 8U232AM chip */ 952 if (baud <= 3000000) { 953 div_value = ftdi_232am_baud_to_divisor(baud); 954 } else { 955 dbg("%s - Baud rate too high!", __func__); 956 baud = 9600; 957 div_value = ftdi_232am_baud_to_divisor(9600); 958 div_okay = 0; 959 } 960 break; 961 case FT232BM: /* FT232BM chip */ 962 case FT2232C: /* FT2232C chip */ 963 case FT232RL: 964 if (baud <= 3000000) { 965 div_value = ftdi_232bm_baud_to_divisor(baud); 966 } else { 967 dbg("%s - Baud rate too high!", __func__); 968 div_value = ftdi_232bm_baud_to_divisor(9600); 969 div_okay = 0; 970 baud = 9600; 971 } 972 break; 973 } /* priv->chip_type */ 974 975 if (div_okay) { 976 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 977 __func__, baud, (unsigned long)div_value, 978 ftdi_chip_name[priv->chip_type]); 979 } 980 981 tty_encode_baud_rate(tty, baud, baud); 982 return div_value; 983 } 984 985 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 986 { 987 struct ftdi_private *priv = usb_get_serial_port_data(port); 988 char *buf; 989 __u16 urb_value; 990 __u16 urb_index; 991 __u32 urb_index_value; 992 int rv; 993 994 buf = kmalloc(1, GFP_NOIO); 995 if (!buf) 996 return -ENOMEM; 997 998 urb_index_value = get_ftdi_divisor(tty, port); 999 urb_value = (__u16)urb_index_value; 1000 urb_index = (__u16)(urb_index_value >> 16); 1001 if (priv->interface) { /* FT2232C */ 1002 urb_index = (__u16)((urb_index << 8) | priv->interface); 1003 } 1004 1005 rv = usb_control_msg(port->serial->dev, 1006 usb_sndctrlpipe(port->serial->dev, 0), 1007 FTDI_SIO_SET_BAUDRATE_REQUEST, 1008 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1009 urb_value, urb_index, 1010 buf, 0, WDR_SHORT_TIMEOUT); 1011 1012 kfree(buf); 1013 return rv; 1014 } 1015 1016 1017 1018 static int get_serial_info(struct usb_serial_port *port, 1019 struct serial_struct __user *retinfo) 1020 { 1021 struct ftdi_private *priv = usb_get_serial_port_data(port); 1022 struct serial_struct tmp; 1023 1024 if (!retinfo) 1025 return -EFAULT; 1026 memset(&tmp, 0, sizeof(tmp)); 1027 tmp.flags = priv->flags; 1028 tmp.baud_base = priv->baud_base; 1029 tmp.custom_divisor = priv->custom_divisor; 1030 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1031 return -EFAULT; 1032 return 0; 1033 } /* get_serial_info */ 1034 1035 1036 static int set_serial_info(struct tty_struct *tty, 1037 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1038 { /* set_serial_info */ 1039 struct ftdi_private *priv = usb_get_serial_port_data(port); 1040 struct serial_struct new_serial; 1041 struct ftdi_private old_priv; 1042 1043 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1044 return -EFAULT; 1045 old_priv = *priv; 1046 1047 /* Do error checking and permission checking */ 1048 1049 if (!capable(CAP_SYS_ADMIN)) { 1050 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1051 (priv->flags & ~ASYNC_USR_MASK))) 1052 return -EPERM; 1053 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1054 (new_serial.flags & ASYNC_USR_MASK)); 1055 priv->custom_divisor = new_serial.custom_divisor; 1056 goto check_and_exit; 1057 } 1058 1059 if ((new_serial.baud_base != priv->baud_base) && 1060 (new_serial.baud_base < 9600)) 1061 return -EINVAL; 1062 1063 /* Make the changes - these are privileged changes! */ 1064 1065 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1066 (new_serial.flags & ASYNC_FLAGS)); 1067 priv->custom_divisor = new_serial.custom_divisor; 1068 1069 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1070 1071 check_and_exit: 1072 if ((old_priv.flags & ASYNC_SPD_MASK) != 1073 (priv->flags & ASYNC_SPD_MASK)) { 1074 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1075 tty->alt_speed = 57600; 1076 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1077 tty->alt_speed = 115200; 1078 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1079 tty->alt_speed = 230400; 1080 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1081 tty->alt_speed = 460800; 1082 else 1083 tty->alt_speed = 0; 1084 } 1085 if (((old_priv.flags & ASYNC_SPD_MASK) != 1086 (priv->flags & ASYNC_SPD_MASK)) || 1087 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1088 (old_priv.custom_divisor != priv->custom_divisor))) { 1089 change_speed(tty, port); 1090 } 1091 return 0; 1092 1093 } /* set_serial_info */ 1094 1095 1096 /* Determine type of FTDI chip based on USB config and descriptor. */ 1097 static void ftdi_determine_type(struct usb_serial_port *port) 1098 { 1099 struct ftdi_private *priv = usb_get_serial_port_data(port); 1100 struct usb_serial *serial = port->serial; 1101 struct usb_device *udev = serial->dev; 1102 unsigned version; 1103 unsigned interfaces; 1104 1105 /* Assume it is not the original SIO device for now. */ 1106 priv->baud_base = 48000000 / 2; 1107 priv->write_offset = 0; 1108 1109 version = le16_to_cpu(udev->descriptor.bcdDevice); 1110 interfaces = udev->actconfig->desc.bNumInterfaces; 1111 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1112 version, interfaces); 1113 if (interfaces > 1) { 1114 int inter; 1115 1116 /* Multiple interfaces. Assume FT2232C. */ 1117 priv->chip_type = FT2232C; 1118 /* Determine interface code. */ 1119 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1120 if (inter == 0) 1121 priv->interface = PIT_SIOA; 1122 else 1123 priv->interface = PIT_SIOB; 1124 /* BM-type devices have a bug where bcdDevice gets set 1125 * to 0x200 when iSerialNumber is 0. */ 1126 if (version < 0x500) { 1127 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1128 __func__); 1129 } 1130 } else if (version < 0x200) { 1131 /* Old device. Assume its the original SIO. */ 1132 priv->chip_type = SIO; 1133 priv->baud_base = 12000000 / 16; 1134 priv->write_offset = 1; 1135 } else if (version < 0x400) { 1136 /* Assume its an FT8U232AM (or FT8U245AM) */ 1137 /* (It might be a BM because of the iSerialNumber bug, 1138 * but it will still work as an AM device.) */ 1139 priv->chip_type = FT8U232AM; 1140 } else if (version < 0x600) { 1141 /* Assume its an FT232BM (or FT245BM) */ 1142 priv->chip_type = FT232BM; 1143 } else { 1144 /* Assume its an FT232R */ 1145 priv->chip_type = FT232RL; 1146 } 1147 info("Detected %s", ftdi_chip_name[priv->chip_type]); 1148 } 1149 1150 1151 /* 1152 * *************************************************************************** 1153 * Sysfs Attribute 1154 * *************************************************************************** 1155 */ 1156 1157 static ssize_t show_latency_timer(struct device *dev, 1158 struct device_attribute *attr, char *buf) 1159 { 1160 struct usb_serial_port *port = to_usb_serial_port(dev); 1161 struct ftdi_private *priv = usb_get_serial_port_data(port); 1162 struct usb_device *udev = port->serial->dev; 1163 unsigned short latency = 0; 1164 int rv = 0; 1165 1166 1167 dbg("%s", __func__); 1168 1169 rv = usb_control_msg(udev, 1170 usb_rcvctrlpipe(udev, 0), 1171 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1172 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1173 0, priv->interface, 1174 (char *) &latency, 1, WDR_TIMEOUT); 1175 1176 if (rv < 0) { 1177 dev_err(dev, "Unable to read latency timer: %i\n", rv); 1178 return -EIO; 1179 } 1180 return sprintf(buf, "%i\n", latency); 1181 } 1182 1183 /* Write a new value of the latency timer, in units of milliseconds. */ 1184 static ssize_t store_latency_timer(struct device *dev, 1185 struct device_attribute *attr, const char *valbuf, 1186 size_t count) 1187 { 1188 struct usb_serial_port *port = to_usb_serial_port(dev); 1189 struct ftdi_private *priv = usb_get_serial_port_data(port); 1190 struct usb_device *udev = port->serial->dev; 1191 char buf[1]; 1192 int v = simple_strtoul(valbuf, NULL, 10); 1193 int rv = 0; 1194 1195 dbg("%s: setting latency timer = %i", __func__, v); 1196 1197 rv = usb_control_msg(udev, 1198 usb_sndctrlpipe(udev, 0), 1199 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1200 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1201 v, priv->interface, 1202 buf, 0, WDR_TIMEOUT); 1203 1204 if (rv < 0) { 1205 dev_err(dev, "Unable to write latency timer: %i\n", rv); 1206 return -EIO; 1207 } 1208 1209 return count; 1210 } 1211 1212 /* Write an event character directly to the FTDI register. The ASCII 1213 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1214 static ssize_t store_event_char(struct device *dev, 1215 struct device_attribute *attr, const char *valbuf, size_t count) 1216 { 1217 struct usb_serial_port *port = to_usb_serial_port(dev); 1218 struct ftdi_private *priv = usb_get_serial_port_data(port); 1219 struct usb_device *udev = port->serial->dev; 1220 char buf[1]; 1221 int v = simple_strtoul(valbuf, NULL, 10); 1222 int rv = 0; 1223 1224 dbg("%s: setting event char = %i", __func__, v); 1225 1226 rv = usb_control_msg(udev, 1227 usb_sndctrlpipe(udev, 0), 1228 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1229 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1230 v, priv->interface, 1231 buf, 0, WDR_TIMEOUT); 1232 1233 if (rv < 0) { 1234 dbg("Unable to write event character: %i", rv); 1235 return -EIO; 1236 } 1237 1238 return count; 1239 } 1240 1241 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1242 store_latency_timer); 1243 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1244 1245 static int create_sysfs_attrs(struct usb_serial_port *port) 1246 { 1247 struct ftdi_private *priv = usb_get_serial_port_data(port); 1248 int retval = 0; 1249 1250 dbg("%s", __func__); 1251 1252 /* XXX I've no idea if the original SIO supports the event_char 1253 * sysfs parameter, so I'm playing it safe. */ 1254 if (priv->chip_type != SIO) { 1255 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1256 retval = device_create_file(&port->dev, &dev_attr_event_char); 1257 if ((!retval) && 1258 (priv->chip_type == FT232BM || 1259 priv->chip_type == FT2232C || 1260 priv->chip_type == FT232RL)) { 1261 retval = device_create_file(&port->dev, 1262 &dev_attr_latency_timer); 1263 } 1264 } 1265 return retval; 1266 } 1267 1268 static void remove_sysfs_attrs(struct usb_serial_port *port) 1269 { 1270 struct ftdi_private *priv = usb_get_serial_port_data(port); 1271 1272 dbg("%s", __func__); 1273 1274 /* XXX see create_sysfs_attrs */ 1275 if (priv->chip_type != SIO) { 1276 device_remove_file(&port->dev, &dev_attr_event_char); 1277 if (priv->chip_type == FT232BM || 1278 priv->chip_type == FT2232C || 1279 priv->chip_type == FT232RL) { 1280 device_remove_file(&port->dev, &dev_attr_latency_timer); 1281 } 1282 } 1283 1284 } 1285 1286 /* 1287 * *************************************************************************** 1288 * FTDI driver specific functions 1289 * *************************************************************************** 1290 */ 1291 1292 /* Probe function to check for special devices */ 1293 static int ftdi_sio_probe(struct usb_serial *serial, 1294 const struct usb_device_id *id) 1295 { 1296 struct ftdi_sio_quirk *quirk = 1297 (struct ftdi_sio_quirk *)id->driver_info; 1298 1299 if (quirk && quirk->probe) { 1300 int ret = quirk->probe(serial); 1301 if (ret != 0) 1302 return ret; 1303 } 1304 1305 usb_set_serial_data(serial, (void *)id->driver_info); 1306 1307 return 0; 1308 } 1309 1310 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1311 { 1312 struct ftdi_private *priv; 1313 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1314 1315 1316 dbg("%s", __func__); 1317 1318 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1319 if (!priv) { 1320 err("%s- kmalloc(%Zd) failed.", __func__, 1321 sizeof(struct ftdi_private)); 1322 return -ENOMEM; 1323 } 1324 1325 spin_lock_init(&priv->rx_lock); 1326 spin_lock_init(&priv->tx_lock); 1327 init_waitqueue_head(&priv->delta_msr_wait); 1328 /* This will push the characters through immediately rather 1329 than queue a task to deliver them */ 1330 priv->flags = ASYNC_LOW_LATENCY; 1331 1332 if (quirk && quirk->port_probe) 1333 quirk->port_probe(priv); 1334 1335 /* Increase the size of read buffers */ 1336 kfree(port->bulk_in_buffer); 1337 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1338 if (!port->bulk_in_buffer) { 1339 kfree(priv); 1340 return -ENOMEM; 1341 } 1342 if (port->read_urb) { 1343 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1344 port->read_urb->transfer_buffer_length = BUFSZ; 1345 } 1346 1347 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1348 priv->port = port; 1349 1350 /* Free port's existing write urb and transfer buffer. */ 1351 if (port->write_urb) { 1352 usb_free_urb(port->write_urb); 1353 port->write_urb = NULL; 1354 } 1355 kfree(port->bulk_out_buffer); 1356 port->bulk_out_buffer = NULL; 1357 1358 usb_set_serial_port_data(port, priv); 1359 1360 ftdi_determine_type(port); 1361 create_sysfs_attrs(port); 1362 return 0; 1363 } 1364 1365 /* Setup for the USB-UIRT device, which requires hardwired 1366 * baudrate (38400 gets mapped to 312500) */ 1367 /* Called from usbserial:serial_probe */ 1368 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1369 { 1370 dbg("%s", __func__); 1371 1372 priv->flags |= ASYNC_SPD_CUST; 1373 priv->custom_divisor = 77; 1374 priv->force_baud = 38400; 1375 } /* ftdi_USB_UIRT_setup */ 1376 1377 /* Setup for the HE-TIRA1 device, which requires hardwired 1378 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1379 1380 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1381 { 1382 dbg("%s", __func__); 1383 1384 priv->flags |= ASYNC_SPD_CUST; 1385 priv->custom_divisor = 240; 1386 priv->force_baud = 38400; 1387 priv->force_rtscts = 1; 1388 } /* ftdi_HE_TIRA1_setup */ 1389 1390 /* 1391 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1392 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1393 * userspace using openocd. 1394 */ 1395 static int ftdi_jtag_probe(struct usb_serial *serial) 1396 { 1397 struct usb_device *udev = serial->dev; 1398 struct usb_interface *interface = serial->interface; 1399 1400 dbg("%s", __func__); 1401 1402 if (interface == udev->actconfig->interface[0]) { 1403 info("Ignoring serial port reserved for JTAG"); 1404 return -ENODEV; 1405 } 1406 1407 return 0; 1408 } 1409 1410 /* 1411 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1412 * We have to correct it if we want to read from it. 1413 */ 1414 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1415 { 1416 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1417 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1418 1419 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1420 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1421 info("Fixing invalid wMaxPacketSize on read pipe"); 1422 } 1423 1424 return 0; 1425 } 1426 1427 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect 1428 * it is called when the usb device is disconnected 1429 * 1430 * usbserial:usb_serial_disconnect 1431 * calls __serial_close for each open of the port 1432 * shutdown is called then (ie ftdi_shutdown) 1433 */ 1434 static void ftdi_shutdown(struct usb_serial *serial) 1435 { 1436 dbg("%s", __func__); 1437 } 1438 1439 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1440 { 1441 struct ftdi_private *priv = usb_get_serial_port_data(port); 1442 1443 dbg("%s", __func__); 1444 1445 remove_sysfs_attrs(port); 1446 1447 /* all open ports are closed at this point 1448 * (by usbserial.c:__serial_close, which calls ftdi_close) 1449 */ 1450 1451 if (priv) { 1452 usb_set_serial_port_data(port, NULL); 1453 kfree(priv); 1454 } 1455 1456 return 0; 1457 } 1458 1459 static int ftdi_open(struct tty_struct *tty, 1460 struct usb_serial_port *port, struct file *filp) 1461 { /* ftdi_open */ 1462 struct usb_device *dev = port->serial->dev; 1463 struct ftdi_private *priv = usb_get_serial_port_data(port); 1464 unsigned long flags; 1465 1466 int result = 0; 1467 char buf[1]; /* Needed for the usb_control_msg I think */ 1468 1469 dbg("%s", __func__); 1470 1471 spin_lock_irqsave(&priv->tx_lock, flags); 1472 priv->tx_bytes = 0; 1473 spin_unlock_irqrestore(&priv->tx_lock, flags); 1474 spin_lock_irqsave(&priv->rx_lock, flags); 1475 priv->rx_bytes = 0; 1476 spin_unlock_irqrestore(&priv->rx_lock, flags); 1477 1478 if (tty) 1479 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1480 1481 /* No error checking for this (will get errors later anyway) */ 1482 /* See ftdi_sio.h for description of what is reset */ 1483 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1484 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1485 FTDI_SIO_RESET_SIO, 1486 priv->interface, buf, 0, WDR_TIMEOUT); 1487 1488 /* Termios defaults are set by usb_serial_init. We don't change 1489 port->tty->termios - this would loose speed settings, etc. 1490 This is same behaviour as serial.c/rs_open() - Kuba */ 1491 1492 /* ftdi_set_termios will send usb control messages */ 1493 if (tty) 1494 ftdi_set_termios(tty, port, tty->termios); 1495 1496 /* FIXME: Flow control might be enabled, so it should be checked - 1497 we have no control of defaults! */ 1498 /* Turn on RTS and DTR since we are not flow controlling by default */ 1499 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1500 1501 /* Not throttled */ 1502 spin_lock_irqsave(&priv->rx_lock, flags); 1503 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1504 spin_unlock_irqrestore(&priv->rx_lock, flags); 1505 1506 /* Start reading from the device */ 1507 priv->rx_processed = 0; 1508 usb_fill_bulk_urb(port->read_urb, dev, 1509 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1510 port->read_urb->transfer_buffer, 1511 port->read_urb->transfer_buffer_length, 1512 ftdi_read_bulk_callback, port); 1513 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1514 if (result) 1515 err("%s - failed submitting read urb, error %d", 1516 __func__, result); 1517 1518 1519 return result; 1520 } /* ftdi_open */ 1521 1522 1523 1524 /* 1525 * usbserial:__serial_close only calls ftdi_close if the point is open 1526 * 1527 * This only gets called when it is the last close 1528 * 1529 * 1530 */ 1531 1532 static void ftdi_close(struct tty_struct *tty, 1533 struct usb_serial_port *port, struct file *filp) 1534 { /* ftdi_close */ 1535 unsigned int c_cflag = tty->termios->c_cflag; 1536 struct ftdi_private *priv = usb_get_serial_port_data(port); 1537 char buf[1]; 1538 1539 dbg("%s", __func__); 1540 1541 mutex_lock(&port->serial->disc_mutex); 1542 if (c_cflag & HUPCL && !port->serial->disconnected) { 1543 /* Disable flow control */ 1544 if (usb_control_msg(port->serial->dev, 1545 usb_sndctrlpipe(port->serial->dev, 0), 1546 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1547 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1548 0, priv->interface, buf, 0, 1549 WDR_TIMEOUT) < 0) { 1550 err("error from flowcontrol urb"); 1551 } 1552 1553 /* drop RTS and DTR */ 1554 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1555 } /* Note change no line if hupcl is off */ 1556 mutex_unlock(&port->serial->disc_mutex); 1557 1558 /* cancel any scheduled reading */ 1559 cancel_delayed_work(&priv->rx_work); 1560 flush_scheduled_work(); 1561 1562 /* shutdown our bulk read */ 1563 usb_kill_urb(port->read_urb); 1564 } /* ftdi_close */ 1565 1566 1567 1568 /* The SIO requires the first byte to have: 1569 * B0 1 1570 * B1 0 1571 * B2..7 length of message excluding byte 0 1572 * 1573 * The new devices do not require this byte 1574 */ 1575 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1576 const unsigned char *buf, int count) 1577 { /* ftdi_write */ 1578 struct ftdi_private *priv = usb_get_serial_port_data(port); 1579 struct urb *urb; 1580 unsigned char *buffer; 1581 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1582 int status; 1583 int transfer_size; 1584 unsigned long flags; 1585 1586 dbg("%s port %d, %d bytes", __func__, port->number, count); 1587 1588 if (count == 0) { 1589 dbg("write request of 0 bytes"); 1590 return 0; 1591 } 1592 spin_lock_irqsave(&priv->tx_lock, flags); 1593 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1594 spin_unlock_irqrestore(&priv->tx_lock, flags); 1595 dbg("%s - write limit hit\n", __func__); 1596 return 0; 1597 } 1598 priv->tx_outstanding_urbs++; 1599 spin_unlock_irqrestore(&priv->tx_lock, flags); 1600 1601 data_offset = priv->write_offset; 1602 dbg("data_offset set to %d", data_offset); 1603 1604 /* Determine total transfer size */ 1605 transfer_size = count; 1606 if (data_offset > 0) { 1607 /* Original sio needs control bytes too... */ 1608 transfer_size += (data_offset * 1609 ((count + (PKTSZ - 1 - data_offset)) / 1610 (PKTSZ - data_offset))); 1611 } 1612 1613 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1614 if (!buffer) { 1615 err("%s ran out of kernel memory for urb ...", __func__); 1616 count = -ENOMEM; 1617 goto error_no_buffer; 1618 } 1619 1620 urb = usb_alloc_urb(0, GFP_ATOMIC); 1621 if (!urb) { 1622 err("%s - no more free urbs", __func__); 1623 count = -ENOMEM; 1624 goto error_no_urb; 1625 } 1626 1627 /* Copy data */ 1628 if (data_offset > 0) { 1629 /* Original sio requires control byte at start of 1630 each packet. */ 1631 int user_pktsz = PKTSZ - data_offset; 1632 int todo = count; 1633 unsigned char *first_byte = buffer; 1634 const unsigned char *current_position = buf; 1635 1636 while (todo > 0) { 1637 if (user_pktsz > todo) 1638 user_pktsz = todo; 1639 /* Write the control byte at the front of the packet*/ 1640 *first_byte = 1 | ((user_pktsz) << 2); 1641 /* Copy data for packet */ 1642 memcpy(first_byte + data_offset, 1643 current_position, user_pktsz); 1644 first_byte += user_pktsz + data_offset; 1645 current_position += user_pktsz; 1646 todo -= user_pktsz; 1647 } 1648 } else { 1649 /* No control byte required. */ 1650 /* Copy in the data to send */ 1651 memcpy(buffer, buf, count); 1652 } 1653 1654 usb_serial_debug_data(debug, &port->dev, __func__, 1655 transfer_size, buffer); 1656 1657 /* fill the buffer and send it */ 1658 usb_fill_bulk_urb(urb, port->serial->dev, 1659 usb_sndbulkpipe(port->serial->dev, 1660 port->bulk_out_endpointAddress), 1661 buffer, transfer_size, 1662 ftdi_write_bulk_callback, port); 1663 1664 status = usb_submit_urb(urb, GFP_ATOMIC); 1665 if (status) { 1666 err("%s - failed submitting write urb, error %d", 1667 __func__, status); 1668 count = status; 1669 goto error; 1670 } else { 1671 spin_lock_irqsave(&priv->tx_lock, flags); 1672 priv->tx_outstanding_bytes += count; 1673 priv->tx_bytes += count; 1674 spin_unlock_irqrestore(&priv->tx_lock, flags); 1675 } 1676 1677 /* we are done with this urb, so let the host driver 1678 * really free it when it is finished with it */ 1679 usb_free_urb(urb); 1680 1681 dbg("%s write returning: %d", __func__, count); 1682 return count; 1683 error: 1684 usb_free_urb(urb); 1685 error_no_urb: 1686 kfree(buffer); 1687 error_no_buffer: 1688 spin_lock_irqsave(&priv->tx_lock, flags); 1689 priv->tx_outstanding_urbs--; 1690 spin_unlock_irqrestore(&priv->tx_lock, flags); 1691 return count; 1692 } /* ftdi_write */ 1693 1694 1695 /* This function may get called when the device is closed */ 1696 1697 static void ftdi_write_bulk_callback(struct urb *urb) 1698 { 1699 unsigned long flags; 1700 struct usb_serial_port *port = urb->context; 1701 struct ftdi_private *priv; 1702 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1703 unsigned long countback; 1704 int status = urb->status; 1705 1706 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1707 kfree(urb->transfer_buffer); 1708 1709 dbg("%s - port %d", __func__, port->number); 1710 1711 if (status) { 1712 dbg("nonzero write bulk status received: %d", status); 1713 return; 1714 } 1715 1716 priv = usb_get_serial_port_data(port); 1717 if (!priv) { 1718 dbg("%s - bad port private data pointer - exiting", __func__); 1719 return; 1720 } 1721 /* account for transferred data */ 1722 countback = urb->actual_length; 1723 data_offset = priv->write_offset; 1724 if (data_offset > 0) { 1725 /* Subtract the control bytes */ 1726 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ)); 1727 } 1728 spin_lock_irqsave(&priv->tx_lock, flags); 1729 --priv->tx_outstanding_urbs; 1730 priv->tx_outstanding_bytes -= countback; 1731 spin_unlock_irqrestore(&priv->tx_lock, flags); 1732 1733 usb_serial_port_softint(port); 1734 } /* ftdi_write_bulk_callback */ 1735 1736 1737 static int ftdi_write_room(struct tty_struct *tty) 1738 { 1739 struct usb_serial_port *port = tty->driver_data; 1740 struct ftdi_private *priv = usb_get_serial_port_data(port); 1741 int room; 1742 unsigned long flags; 1743 1744 dbg("%s - port %d", __func__, port->number); 1745 1746 spin_lock_irqsave(&priv->tx_lock, flags); 1747 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1748 /* 1749 * We really can take anything the user throws at us 1750 * but let's pick a nice big number to tell the tty 1751 * layer that we have lots of free space 1752 */ 1753 room = 2048; 1754 } else { 1755 room = 0; 1756 } 1757 spin_unlock_irqrestore(&priv->tx_lock, flags); 1758 return room; 1759 } 1760 1761 static int ftdi_chars_in_buffer(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 buffered; 1766 unsigned long flags; 1767 1768 dbg("%s - port %d", __func__, port->number); 1769 1770 spin_lock_irqsave(&priv->tx_lock, flags); 1771 buffered = (int)priv->tx_outstanding_bytes; 1772 spin_unlock_irqrestore(&priv->tx_lock, flags); 1773 if (buffered < 0) { 1774 err("%s outstanding tx bytes is negative!", __func__); 1775 buffered = 0; 1776 } 1777 return buffered; 1778 } 1779 1780 static void ftdi_read_bulk_callback(struct urb *urb) 1781 { 1782 struct usb_serial_port *port = urb->context; 1783 struct tty_struct *tty; 1784 struct ftdi_private *priv; 1785 unsigned long countread; 1786 unsigned long flags; 1787 int status = urb->status; 1788 1789 if (urb->number_of_packets > 0) { 1790 err("%s transfer_buffer_length %d actual_length %d number of packets %d", 1791 __func__, 1792 urb->transfer_buffer_length, 1793 urb->actual_length, urb->number_of_packets); 1794 err("%s transfer_flags %x ", __func__, urb->transfer_flags); 1795 } 1796 1797 dbg("%s - port %d", __func__, port->number); 1798 1799 if (port->port.count <= 0) 1800 return; 1801 1802 tty = port->port.tty; 1803 if (!tty) { 1804 dbg("%s - bad tty pointer - exiting", __func__); 1805 return; 1806 } 1807 1808 priv = usb_get_serial_port_data(port); 1809 if (!priv) { 1810 dbg("%s - bad port private data pointer - exiting", __func__); 1811 return; 1812 } 1813 1814 if (urb != port->read_urb) 1815 err("%s - Not my urb!", __func__); 1816 1817 if (status) { 1818 /* This will happen at close every time so it is a dbg not an 1819 err */ 1820 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 1821 return; 1822 } 1823 1824 /* count data bytes, but not status bytes */ 1825 countread = urb->actual_length; 1826 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ); 1827 spin_lock_irqsave(&priv->rx_lock, flags); 1828 priv->rx_bytes += countread; 1829 spin_unlock_irqrestore(&priv->rx_lock, flags); 1830 1831 ftdi_process_read(&priv->rx_work.work); 1832 1833 } /* ftdi_read_bulk_callback */ 1834 1835 1836 static void ftdi_process_read(struct work_struct *work) 1837 { /* ftdi_process_read */ 1838 struct ftdi_private *priv = 1839 container_of(work, struct ftdi_private, rx_work.work); 1840 struct usb_serial_port *port = priv->port; 1841 struct urb *urb; 1842 struct tty_struct *tty; 1843 char error_flag; 1844 unsigned char *data; 1845 1846 int i; 1847 int result; 1848 int need_flip; 1849 int packet_offset; 1850 unsigned long flags; 1851 1852 dbg("%s - port %d", __func__, port->number); 1853 1854 if (port->port.count <= 0) 1855 return; 1856 1857 tty = port->port.tty; 1858 if (!tty) { 1859 dbg("%s - bad tty pointer - exiting", __func__); 1860 return; 1861 } 1862 1863 priv = usb_get_serial_port_data(port); 1864 if (!priv) { 1865 dbg("%s - bad port private data pointer - exiting", __func__); 1866 return; 1867 } 1868 1869 urb = port->read_urb; 1870 if (!urb) { 1871 dbg("%s - bad read_urb pointer - exiting", __func__); 1872 return; 1873 } 1874 1875 data = urb->transfer_buffer; 1876 1877 if (priv->rx_processed) { 1878 dbg("%s - already processed: %d bytes, %d remain", __func__, 1879 priv->rx_processed, 1880 urb->actual_length - priv->rx_processed); 1881 } else { 1882 /* The first two bytes of every read packet are status */ 1883 if (urb->actual_length > 2) 1884 usb_serial_debug_data(debug, &port->dev, __func__, 1885 urb->actual_length, data); 1886 else 1887 dbg("Status only: %03oo %03oo", data[0], data[1]); 1888 } 1889 1890 1891 /* TO DO -- check for hung up line and handle appropriately: */ 1892 /* send hangup */ 1893 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 1894 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 1895 1896 need_flip = 0; 1897 for (packet_offset = priv->rx_processed; 1898 packet_offset < urb->actual_length; packet_offset += PKTSZ) { 1899 int length; 1900 1901 /* Compare new line status to the old one, signal if different/ 1902 N.B. packet may be processed more than once, but differences 1903 are only processed once. */ 1904 if (priv != NULL) { 1905 char new_status = data[packet_offset + 0] & 1906 FTDI_STATUS_B0_MASK; 1907 if (new_status != priv->prev_status) { 1908 priv->diff_status |= 1909 new_status ^ priv->prev_status; 1910 wake_up_interruptible(&priv->delta_msr_wait); 1911 priv->prev_status = new_status; 1912 } 1913 } 1914 1915 length = min(PKTSZ, urb->actual_length-packet_offset)-2; 1916 if (length < 0) { 1917 err("%s - bad packet length: %d", __func__, length+2); 1918 length = 0; 1919 } 1920 1921 if (priv->rx_flags & THROTTLED) { 1922 dbg("%s - throttled", __func__); 1923 break; 1924 } 1925 if (tty_buffer_request_room(tty, length) < length) { 1926 /* break out & wait for throttling/unthrottling to 1927 happen */ 1928 dbg("%s - receive room low", __func__); 1929 break; 1930 } 1931 1932 /* Handle errors and break */ 1933 error_flag = TTY_NORMAL; 1934 /* Although the device uses a bitmask and hence can have 1935 multiple errors on a packet - the order here sets the 1936 priority the error is returned to the tty layer */ 1937 1938 if (data[packet_offset+1] & FTDI_RS_OE) { 1939 error_flag = TTY_OVERRUN; 1940 dbg("OVERRRUN error"); 1941 } 1942 if (data[packet_offset+1] & FTDI_RS_BI) { 1943 error_flag = TTY_BREAK; 1944 dbg("BREAK received"); 1945 } 1946 if (data[packet_offset+1] & FTDI_RS_PE) { 1947 error_flag = TTY_PARITY; 1948 dbg("PARITY error"); 1949 } 1950 if (data[packet_offset+1] & FTDI_RS_FE) { 1951 error_flag = TTY_FRAME; 1952 dbg("FRAMING error"); 1953 } 1954 if (length > 0) { 1955 for (i = 2; i < length+2; i++) { 1956 /* Note that the error flag is duplicated for 1957 every character received since we don't know 1958 which character it applied to */ 1959 tty_insert_flip_char(tty, 1960 data[packet_offset + i], error_flag); 1961 } 1962 need_flip = 1; 1963 } 1964 1965 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 1966 /* if a parity error is detected you get status packets forever 1967 until a character is sent without a parity error. 1968 This doesn't work well since the application receives a 1969 never ending stream of bad data - even though new data 1970 hasn't been sent. Therefore I (bill) have taken this out. 1971 However - this might make sense for framing errors and so on 1972 so I am leaving the code in for now. 1973 */ 1974 else { 1975 if (error_flag != TTY_NORMAL) { 1976 dbg("error_flag is not normal"); 1977 /* In this case it is just status - if that is 1978 an error send a bad character */ 1979 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 1980 tty_flip_buffer_push(tty); 1981 tty_insert_flip_char(tty, 0xff, error_flag); 1982 need_flip = 1; 1983 } 1984 } 1985 #endif 1986 } /* "for(packet_offset=0..." */ 1987 1988 /* Low latency */ 1989 if (need_flip) 1990 tty_flip_buffer_push(tty); 1991 1992 if (packet_offset < urb->actual_length) { 1993 /* not completely processed - record progress */ 1994 priv->rx_processed = packet_offset; 1995 dbg("%s - incomplete, %d bytes processed, %d remain", 1996 __func__, packet_offset, 1997 urb->actual_length - packet_offset); 1998 /* check if we were throttled while processing */ 1999 spin_lock_irqsave(&priv->rx_lock, flags); 2000 if (priv->rx_flags & THROTTLED) { 2001 priv->rx_flags |= ACTUALLY_THROTTLED; 2002 spin_unlock_irqrestore(&priv->rx_lock, flags); 2003 dbg("%s - deferring remainder until unthrottled", 2004 __func__); 2005 return; 2006 } 2007 spin_unlock_irqrestore(&priv->rx_lock, flags); 2008 /* if the port is closed stop trying to read */ 2009 if (port->port.count > 0) 2010 /* delay processing of remainder */ 2011 schedule_delayed_work(&priv->rx_work, 1); 2012 else 2013 dbg("%s - port is closed", __func__); 2014 return; 2015 } 2016 2017 /* urb is completely processed */ 2018 priv->rx_processed = 0; 2019 2020 /* if the port is closed stop trying to read */ 2021 if (port->port.count > 0) { 2022 /* Continue trying to always read */ 2023 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2024 usb_rcvbulkpipe(port->serial->dev, 2025 port->bulk_in_endpointAddress), 2026 port->read_urb->transfer_buffer, 2027 port->read_urb->transfer_buffer_length, 2028 ftdi_read_bulk_callback, port); 2029 2030 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2031 if (result) 2032 err("%s - failed resubmitting read urb, error %d", 2033 __func__, result); 2034 } 2035 } /* ftdi_process_read */ 2036 2037 2038 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2039 { 2040 struct usb_serial_port *port = tty->driver_data; 2041 struct ftdi_private *priv = usb_get_serial_port_data(port); 2042 __u16 urb_value = 0; 2043 char buf[1]; 2044 2045 /* break_state = -1 to turn on break, and 0 to turn off break */ 2046 /* see drivers/char/tty_io.c to see it used */ 2047 /* last_set_data_urb_value NEVER has the break bit set in it */ 2048 2049 if (break_state) 2050 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2051 else 2052 urb_value = priv->last_set_data_urb_value; 2053 2054 if (usb_control_msg(port->serial->dev, 2055 usb_sndctrlpipe(port->serial->dev, 0), 2056 FTDI_SIO_SET_DATA_REQUEST, 2057 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2058 urb_value , priv->interface, 2059 buf, 0, WDR_TIMEOUT) < 0) { 2060 err("%s FAILED to enable/disable break state (state was %d)", 2061 __func__, break_state); 2062 } 2063 2064 dbg("%s break state is %d - urb is %d", __func__, 2065 break_state, urb_value); 2066 2067 } 2068 2069 2070 /* old_termios contains the original termios settings and tty->termios contains 2071 * the new setting to be used 2072 * WARNING: set_termios calls this with old_termios in kernel space 2073 */ 2074 2075 static void ftdi_set_termios(struct tty_struct *tty, 2076 struct usb_serial_port *port, struct ktermios *old_termios) 2077 { /* ftdi_termios */ 2078 struct usb_device *dev = port->serial->dev; 2079 struct ftdi_private *priv = usb_get_serial_port_data(port); 2080 struct ktermios *termios = tty->termios; 2081 unsigned int cflag = termios->c_cflag; 2082 __u16 urb_value; /* will hold the new flags */ 2083 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2084 2085 /* Added for xon/xoff support */ 2086 unsigned int iflag = termios->c_iflag; 2087 unsigned char vstop; 2088 unsigned char vstart; 2089 2090 dbg("%s", __func__); 2091 2092 /* Force baud rate if this device requires it, unless it is set to 2093 B0. */ 2094 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2095 dbg("%s: forcing baud rate for this device", __func__); 2096 tty_encode_baud_rate(tty, priv->force_baud, 2097 priv->force_baud); 2098 } 2099 2100 /* Force RTS-CTS if this device requires it. */ 2101 if (priv->force_rtscts) { 2102 dbg("%s: forcing rtscts for this device", __func__); 2103 termios->c_cflag |= CRTSCTS; 2104 } 2105 2106 cflag = termios->c_cflag; 2107 2108 /* FIXME -For this cut I don't care if the line is really changing or 2109 not - so just do the change regardless - should be able to 2110 compare old_termios and tty->termios */ 2111 /* NOTE These routines can get interrupted by 2112 ftdi_sio_read_bulk_callback - need to examine what this means - 2113 don't see any problems yet */ 2114 2115 /* Set number of data bits, parity, stop bits */ 2116 2117 termios->c_cflag &= ~CMSPAR; 2118 2119 urb_value = 0; 2120 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2121 FTDI_SIO_SET_DATA_STOP_BITS_1); 2122 urb_value |= (cflag & PARENB ? 2123 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2124 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2125 FTDI_SIO_SET_DATA_PARITY_NONE); 2126 if (cflag & CSIZE) { 2127 switch (cflag & CSIZE) { 2128 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2129 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2130 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2131 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2132 default: 2133 err("CSIZE was set but not CS5-CS8"); 2134 } 2135 } 2136 2137 /* This is needed by the break command since it uses the same command 2138 - but is or'ed with this value */ 2139 priv->last_set_data_urb_value = urb_value; 2140 2141 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2142 FTDI_SIO_SET_DATA_REQUEST, 2143 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2144 urb_value , priv->interface, 2145 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2146 err("%s FAILED to set databits/stopbits/parity", __func__); 2147 } 2148 2149 /* Now do the baudrate */ 2150 if ((cflag & CBAUD) == B0) { 2151 /* Disable flow control */ 2152 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2153 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2154 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2155 0, priv->interface, 2156 buf, 0, WDR_TIMEOUT) < 0) { 2157 err("%s error from disable flowcontrol urb", __func__); 2158 } 2159 /* Drop RTS and DTR */ 2160 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2161 } else { 2162 /* set the baudrate determined before */ 2163 if (change_speed(tty, port)) 2164 err("%s urb failed to set baudrate", __func__); 2165 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2166 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2167 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2168 } 2169 2170 /* Set flow control */ 2171 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2172 if (cflag & CRTSCTS) { 2173 dbg("%s Setting to CRTSCTS flow control", __func__); 2174 if (usb_control_msg(dev, 2175 usb_sndctrlpipe(dev, 0), 2176 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2177 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2178 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2179 buf, 0, WDR_TIMEOUT) < 0) { 2180 err("urb failed to set to rts/cts flow control"); 2181 } 2182 2183 } else { 2184 /* 2185 * Xon/Xoff code 2186 * 2187 * Check the IXOFF status in the iflag component of the 2188 * termios structure. If IXOFF is not set, the pre-xon/xoff 2189 * code is executed. 2190 */ 2191 if (iflag & IXOFF) { 2192 dbg("%s request to enable xonxoff iflag=%04x", 2193 __func__, iflag); 2194 /* Try to enable the XON/XOFF on the ftdi_sio 2195 * Set the vstart and vstop -- could have been done up 2196 * above where a lot of other dereferencing is done but 2197 * that would be very inefficient as vstart and vstop 2198 * are not always needed. 2199 */ 2200 vstart = termios->c_cc[VSTART]; 2201 vstop = termios->c_cc[VSTOP]; 2202 urb_value = (vstop << 8) | (vstart); 2203 2204 if (usb_control_msg(dev, 2205 usb_sndctrlpipe(dev, 0), 2206 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2207 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2208 urb_value , (FTDI_SIO_XON_XOFF_HS 2209 | priv->interface), 2210 buf, 0, WDR_TIMEOUT) < 0) { 2211 err("urb failed to set to xon/xoff flow control"); 2212 } 2213 } else { 2214 /* else clause to only run if cflag ! CRTSCTS and iflag 2215 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2216 * stack - not by device */ 2217 dbg("%s Turning off hardware flow control", __func__); 2218 if (usb_control_msg(dev, 2219 usb_sndctrlpipe(dev, 0), 2220 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2221 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2222 0, priv->interface, 2223 buf, 0, WDR_TIMEOUT) < 0) { 2224 err("urb failed to clear flow control"); 2225 } 2226 } 2227 2228 } 2229 return; 2230 } 2231 2232 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2233 { 2234 struct usb_serial_port *port = tty->driver_data; 2235 struct ftdi_private *priv = usb_get_serial_port_data(port); 2236 unsigned char buf[2]; 2237 int ret; 2238 2239 dbg("%s TIOCMGET", __func__); 2240 switch (priv->chip_type) { 2241 case SIO: 2242 /* Request the status from the device */ 2243 ret = usb_control_msg(port->serial->dev, 2244 usb_rcvctrlpipe(port->serial->dev, 0), 2245 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2246 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2247 0, 0, 2248 buf, 1, WDR_TIMEOUT); 2249 if (ret < 0) { 2250 err("%s Could not get modem status of device - err: %d", __func__, 2251 ret); 2252 return ret; 2253 } 2254 break; 2255 case FT8U232AM: 2256 case FT232BM: 2257 case FT2232C: 2258 case FT232RL: 2259 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2260 value) - in the same format as the data returned from the in 2261 point */ 2262 ret = usb_control_msg(port->serial->dev, 2263 usb_rcvctrlpipe(port->serial->dev, 0), 2264 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2265 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2266 0, priv->interface, 2267 buf, 2, WDR_TIMEOUT); 2268 if (ret < 0) { 2269 err("%s Could not get modem status of device - err: %d", __func__, 2270 ret); 2271 return ret; 2272 } 2273 break; 2274 default: 2275 return -EFAULT; 2276 break; 2277 } 2278 2279 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2280 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2281 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2282 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2283 priv->last_dtr_rts; 2284 } 2285 2286 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2287 unsigned int set, unsigned int clear) 2288 { 2289 struct usb_serial_port *port = tty->driver_data; 2290 dbg("%s TIOCMSET", __func__); 2291 return update_mctrl(port, set, clear); 2292 } 2293 2294 2295 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2296 unsigned int cmd, unsigned long arg) 2297 { 2298 struct usb_serial_port *port = tty->driver_data; 2299 struct ftdi_private *priv = usb_get_serial_port_data(port); 2300 2301 dbg("%s cmd 0x%04x", __func__, cmd); 2302 2303 /* Based on code from acm.c and others */ 2304 switch (cmd) { 2305 2306 case TIOCGSERIAL: /* gets serial port data */ 2307 return get_serial_info(port, 2308 (struct serial_struct __user *) arg); 2309 2310 case TIOCSSERIAL: /* sets serial port data */ 2311 return set_serial_info(tty, port, 2312 (struct serial_struct __user *) arg); 2313 2314 /* 2315 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2316 * - mask passed in arg for lines of interest 2317 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2318 * Caller should use TIOCGICOUNT to see which one it was. 2319 * 2320 * This code is borrowed from linux/drivers/char/serial.c 2321 */ 2322 case TIOCMIWAIT: 2323 while (priv != NULL) { 2324 interruptible_sleep_on(&priv->delta_msr_wait); 2325 /* see if a signal did it */ 2326 if (signal_pending(current)) 2327 return -ERESTARTSYS; 2328 else { 2329 char diff = priv->diff_status; 2330 2331 if (diff == 0) 2332 return -EIO; /* no change => error */ 2333 2334 /* Consume all events */ 2335 priv->diff_status = 0; 2336 2337 /* Return 0 if caller wanted to know about 2338 these bits */ 2339 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2340 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2341 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2342 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2343 return 0; 2344 } 2345 /* 2346 * Otherwise caller can't care less about what 2347 * happened,and so we continue to wait for more 2348 * events. 2349 */ 2350 } 2351 } 2352 return 0; 2353 default: 2354 break; 2355 } 2356 /* This is not necessarily an error - turns out the higher layers 2357 * will do some ioctls themselves (see comment above) 2358 */ 2359 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2360 return -ENOIOCTLCMD; 2361 } 2362 2363 static void ftdi_throttle(struct tty_struct *tty) 2364 { 2365 struct usb_serial_port *port = tty->driver_data; 2366 struct ftdi_private *priv = usb_get_serial_port_data(port); 2367 unsigned long flags; 2368 2369 dbg("%s - port %d", __func__, port->number); 2370 2371 spin_lock_irqsave(&priv->rx_lock, flags); 2372 priv->rx_flags |= THROTTLED; 2373 spin_unlock_irqrestore(&priv->rx_lock, flags); 2374 } 2375 2376 2377 static void ftdi_unthrottle(struct tty_struct *tty) 2378 { 2379 struct usb_serial_port *port = tty->driver_data; 2380 struct ftdi_private *priv = usb_get_serial_port_data(port); 2381 int actually_throttled; 2382 unsigned long flags; 2383 2384 dbg("%s - port %d", __func__, port->number); 2385 2386 spin_lock_irqsave(&priv->rx_lock, flags); 2387 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2388 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2389 spin_unlock_irqrestore(&priv->rx_lock, flags); 2390 2391 if (actually_throttled) 2392 schedule_delayed_work(&priv->rx_work, 0); 2393 } 2394 2395 static int __init ftdi_init(void) 2396 { 2397 int retval; 2398 2399 dbg("%s", __func__); 2400 if (vendor > 0 && product > 0) { 2401 /* Add user specified VID/PID to reserved element of table. */ 2402 int i; 2403 for (i = 0; id_table_combined[i].idVendor; i++) 2404 ; 2405 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2406 id_table_combined[i].idVendor = vendor; 2407 id_table_combined[i].idProduct = product; 2408 } 2409 retval = usb_serial_register(&ftdi_sio_device); 2410 if (retval) 2411 goto failed_sio_register; 2412 retval = usb_register(&ftdi_driver); 2413 if (retval) 2414 goto failed_usb_register; 2415 2416 info(DRIVER_VERSION ":" DRIVER_DESC); 2417 return 0; 2418 failed_usb_register: 2419 usb_serial_deregister(&ftdi_sio_device); 2420 failed_sio_register: 2421 return retval; 2422 } 2423 2424 2425 static void __exit ftdi_exit(void) 2426 { 2427 2428 dbg("%s", __func__); 2429 2430 usb_deregister(&ftdi_driver); 2431 usb_serial_deregister(&ftdi_sio_device); 2432 2433 } 2434 2435 2436 module_init(ftdi_init); 2437 module_exit(ftdi_exit); 2438 2439 MODULE_AUTHOR(DRIVER_AUTHOR); 2440 MODULE_DESCRIPTION(DRIVER_DESC); 2441 MODULE_LICENSE("GPL"); 2442 2443 module_param(debug, bool, S_IRUGO | S_IWUSR); 2444 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2445 module_param(vendor, ushort, 0); 2446 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2447 __MODULE_STRING(FTDI_VID)")"); 2448 module_param(product, ushort, 0); 2449 MODULE_PARM_DESC(vendor, "User specified product ID"); 2450 2451