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 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) }, 664 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) }, 665 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) }, 666 { USB_DEVICE(ATMEL_VID, STK541_PID) }, 667 { USB_DEVICE(DE_VID, STB_PID) }, 668 { USB_DEVICE(DE_VID, WHT_PID) }, 669 { USB_DEVICE(ADI_VID, ADI_GNICE_PID), 670 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 671 { }, /* Optional parameter entry */ 672 { } /* Terminating entry */ 673 }; 674 675 MODULE_DEVICE_TABLE(usb, id_table_combined); 676 677 static struct usb_driver ftdi_driver = { 678 .name = "ftdi_sio", 679 .probe = usb_serial_probe, 680 .disconnect = usb_serial_disconnect, 681 .id_table = id_table_combined, 682 .no_dynamic_id = 1, 683 }; 684 685 static const char *ftdi_chip_name[] = { 686 [SIO] = "SIO", /* the serial part of FT8U100AX */ 687 [FT8U232AM] = "FT8U232AM", 688 [FT232BM] = "FT232BM", 689 [FT2232C] = "FT2232C", 690 [FT232RL] = "FT232RL", 691 }; 692 693 694 /* Constants for read urb and write urb */ 695 #define BUFSZ 512 696 #define PKTSZ 64 697 698 /* rx_flags */ 699 #define THROTTLED 0x01 700 #define ACTUALLY_THROTTLED 0x02 701 702 /* Used for TIOCMIWAIT */ 703 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 704 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 705 /* End TIOCMIWAIT */ 706 707 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 708 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 709 710 /* function prototypes for a FTDI serial converter */ 711 static int ftdi_sio_probe(struct usb_serial *serial, 712 const struct usb_device_id *id); 713 static void ftdi_shutdown(struct usb_serial *serial); 714 static int ftdi_sio_port_probe(struct usb_serial_port *port); 715 static int ftdi_sio_port_remove(struct usb_serial_port *port); 716 static int ftdi_open(struct tty_struct *tty, 717 struct usb_serial_port *port, struct file *filp); 718 static void ftdi_close(struct tty_struct *tty, 719 struct usb_serial_port *port, struct file *filp); 720 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 721 const unsigned char *buf, int count); 722 static int ftdi_write_room(struct tty_struct *tty); 723 static int ftdi_chars_in_buffer(struct tty_struct *tty); 724 static void ftdi_write_bulk_callback(struct urb *urb); 725 static void ftdi_read_bulk_callback(struct urb *urb); 726 static void ftdi_process_read(struct work_struct *work); 727 static void ftdi_set_termios(struct tty_struct *tty, 728 struct usb_serial_port *port, struct ktermios *old); 729 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 730 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 731 unsigned int set, unsigned int clear); 732 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 733 unsigned int cmd, unsigned long arg); 734 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 735 static void ftdi_throttle(struct tty_struct *tty); 736 static void ftdi_unthrottle(struct tty_struct *tty); 737 738 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 739 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 740 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 741 static __u32 ftdi_232bm_baud_to_divisor(int baud); 742 743 static struct usb_serial_driver ftdi_sio_device = { 744 .driver = { 745 .owner = THIS_MODULE, 746 .name = "ftdi_sio", 747 }, 748 .description = "FTDI USB Serial Device", 749 .usb_driver = &ftdi_driver , 750 .id_table = id_table_combined, 751 .num_ports = 1, 752 .probe = ftdi_sio_probe, 753 .port_probe = ftdi_sio_port_probe, 754 .port_remove = ftdi_sio_port_remove, 755 .open = ftdi_open, 756 .close = ftdi_close, 757 .throttle = ftdi_throttle, 758 .unthrottle = ftdi_unthrottle, 759 .write = ftdi_write, 760 .write_room = ftdi_write_room, 761 .chars_in_buffer = ftdi_chars_in_buffer, 762 .read_bulk_callback = ftdi_read_bulk_callback, 763 .write_bulk_callback = ftdi_write_bulk_callback, 764 .tiocmget = ftdi_tiocmget, 765 .tiocmset = ftdi_tiocmset, 766 .ioctl = ftdi_ioctl, 767 .set_termios = ftdi_set_termios, 768 .break_ctl = ftdi_break_ctl, 769 .shutdown = ftdi_shutdown, 770 }; 771 772 773 #define WDR_TIMEOUT 5000 /* default urb timeout */ 774 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 775 776 /* High and low are for DTR, RTS etc etc */ 777 #define HIGH 1 778 #define LOW 0 779 780 /* number of outstanding urbs to prevent userspace DoS from happening */ 781 #define URB_UPPER_LIMIT 42 782 783 /* 784 * *************************************************************************** 785 * Utility functions 786 * *************************************************************************** 787 */ 788 789 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 790 { 791 unsigned short int divisor; 792 /* divisor shifted 3 bits to the left */ 793 int divisor3 = base / 2 / baud; 794 if ((divisor3 & 0x7) == 7) 795 divisor3++; /* round x.7/8 up to x+1 */ 796 divisor = divisor3 >> 3; 797 divisor3 &= 0x7; 798 if (divisor3 == 1) 799 divisor |= 0xc000; 800 else if (divisor3 >= 4) 801 divisor |= 0x4000; 802 else if (divisor3 != 0) 803 divisor |= 0x8000; 804 else if (divisor == 1) 805 divisor = 0; /* special case for maximum baud rate */ 806 return divisor; 807 } 808 809 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 810 { 811 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 812 } 813 814 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 815 { 816 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 817 __u32 divisor; 818 /* divisor shifted 3 bits to the left */ 819 int divisor3 = base / 2 / baud; 820 divisor = divisor3 >> 3; 821 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 822 /* Deal with special cases for highest baud rates. */ 823 if (divisor == 1) 824 divisor = 0; 825 else if (divisor == 0x4001) 826 divisor = 1; 827 return divisor; 828 } 829 830 static __u32 ftdi_232bm_baud_to_divisor(int baud) 831 { 832 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 833 } 834 835 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 836 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 837 838 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 839 unsigned int clear) 840 { 841 struct ftdi_private *priv = usb_get_serial_port_data(port); 842 char *buf; 843 unsigned urb_value; 844 int rv; 845 846 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 847 dbg("%s - DTR|RTS not being set|cleared", __func__); 848 return 0; /* no change */ 849 } 850 851 buf = kmalloc(1, GFP_NOIO); 852 if (!buf) 853 return -ENOMEM; 854 855 clear &= ~set; /* 'set' takes precedence over 'clear' */ 856 urb_value = 0; 857 if (clear & TIOCM_DTR) 858 urb_value |= FTDI_SIO_SET_DTR_LOW; 859 if (clear & TIOCM_RTS) 860 urb_value |= FTDI_SIO_SET_RTS_LOW; 861 if (set & TIOCM_DTR) 862 urb_value |= FTDI_SIO_SET_DTR_HIGH; 863 if (set & TIOCM_RTS) 864 urb_value |= FTDI_SIO_SET_RTS_HIGH; 865 rv = usb_control_msg(port->serial->dev, 866 usb_sndctrlpipe(port->serial->dev, 0), 867 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 868 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 869 urb_value, priv->interface, 870 buf, 0, WDR_TIMEOUT); 871 872 kfree(buf); 873 if (rv < 0) { 874 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 875 __func__, 876 (set & TIOCM_DTR) ? "HIGH" : 877 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 878 (set & TIOCM_RTS) ? "HIGH" : 879 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 880 } else { 881 dbg("%s - DTR %s, RTS %s", __func__, 882 (set & TIOCM_DTR) ? "HIGH" : 883 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 884 (set & TIOCM_RTS) ? "HIGH" : 885 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 886 /* FIXME: locking on last_dtr_rts */ 887 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 888 } 889 return rv; 890 } 891 892 893 static __u32 get_ftdi_divisor(struct tty_struct *tty, 894 struct usb_serial_port *port) 895 { /* get_ftdi_divisor */ 896 struct ftdi_private *priv = usb_get_serial_port_data(port); 897 __u32 div_value = 0; 898 int div_okay = 1; 899 int baud; 900 901 /* 902 * The logic involved in setting the baudrate can be cleanly split into 903 * 3 steps. 904 * 1. Standard baud rates are set in tty->termios->c_cflag 905 * 2. If these are not enough, you can set any speed using alt_speed as 906 * follows: 907 * - set tty->termios->c_cflag speed to B38400 908 * - set your real speed in tty->alt_speed; it gets ignored when 909 * alt_speed==0, (or) 910 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 911 * follows: 912 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 913 * this just sets alt_speed to (HI: 57600, VHI: 115200, 914 * SHI: 230400, WARP: 460800) 915 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 916 * 3. You can also set baud rate by setting custom divisor as follows 917 * - set tty->termios->c_cflag speed to B38400 918 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 919 * follows: 920 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 921 * o custom_divisor set to baud_base / your_new_baudrate 922 * ** Step 3 is done courtesy of code borrowed from serial.c 923 * I should really spend some time and separate + move this common 924 * code to serial.c, it is replicated in nearly every serial driver 925 * you see. 926 */ 927 928 /* 1. Get the baud rate from the tty settings, this observes 929 alt_speed hack */ 930 931 baud = tty_get_baud_rate(tty); 932 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 933 934 /* 2. Observe async-compatible custom_divisor hack, update baudrate 935 if needed */ 936 937 if (baud == 38400 && 938 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 939 (priv->custom_divisor)) { 940 baud = priv->baud_base / priv->custom_divisor; 941 dbg("%s - custom divisor %d sets baud rate to %d", 942 __func__, priv->custom_divisor, baud); 943 } 944 945 /* 3. Convert baudrate to device-specific divisor */ 946 947 if (!baud) 948 baud = 9600; 949 switch (priv->chip_type) { 950 case SIO: /* SIO chip */ 951 switch (baud) { 952 case 300: div_value = ftdi_sio_b300; break; 953 case 600: div_value = ftdi_sio_b600; break; 954 case 1200: div_value = ftdi_sio_b1200; break; 955 case 2400: div_value = ftdi_sio_b2400; break; 956 case 4800: div_value = ftdi_sio_b4800; break; 957 case 9600: div_value = ftdi_sio_b9600; break; 958 case 19200: div_value = ftdi_sio_b19200; break; 959 case 38400: div_value = ftdi_sio_b38400; break; 960 case 57600: div_value = ftdi_sio_b57600; break; 961 case 115200: div_value = ftdi_sio_b115200; break; 962 } /* baud */ 963 if (div_value == 0) { 964 dbg("%s - Baudrate (%d) requested is not supported", 965 __func__, baud); 966 div_value = ftdi_sio_b9600; 967 baud = 9600; 968 div_okay = 0; 969 } 970 break; 971 case FT8U232AM: /* 8U232AM chip */ 972 if (baud <= 3000000) { 973 div_value = ftdi_232am_baud_to_divisor(baud); 974 } else { 975 dbg("%s - Baud rate too high!", __func__); 976 baud = 9600; 977 div_value = ftdi_232am_baud_to_divisor(9600); 978 div_okay = 0; 979 } 980 break; 981 case FT232BM: /* FT232BM chip */ 982 case FT2232C: /* FT2232C chip */ 983 case FT232RL: 984 if (baud <= 3000000) { 985 div_value = ftdi_232bm_baud_to_divisor(baud); 986 } else { 987 dbg("%s - Baud rate too high!", __func__); 988 div_value = ftdi_232bm_baud_to_divisor(9600); 989 div_okay = 0; 990 baud = 9600; 991 } 992 break; 993 } /* priv->chip_type */ 994 995 if (div_okay) { 996 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 997 __func__, baud, (unsigned long)div_value, 998 ftdi_chip_name[priv->chip_type]); 999 } 1000 1001 tty_encode_baud_rate(tty, baud, baud); 1002 return div_value; 1003 } 1004 1005 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 1006 { 1007 struct ftdi_private *priv = usb_get_serial_port_data(port); 1008 char *buf; 1009 __u16 urb_value; 1010 __u16 urb_index; 1011 __u32 urb_index_value; 1012 int rv; 1013 1014 buf = kmalloc(1, GFP_NOIO); 1015 if (!buf) 1016 return -ENOMEM; 1017 1018 urb_index_value = get_ftdi_divisor(tty, port); 1019 urb_value = (__u16)urb_index_value; 1020 urb_index = (__u16)(urb_index_value >> 16); 1021 if (priv->interface) { /* FT2232C */ 1022 urb_index = (__u16)((urb_index << 8) | priv->interface); 1023 } 1024 1025 rv = usb_control_msg(port->serial->dev, 1026 usb_sndctrlpipe(port->serial->dev, 0), 1027 FTDI_SIO_SET_BAUDRATE_REQUEST, 1028 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1029 urb_value, urb_index, 1030 buf, 0, WDR_SHORT_TIMEOUT); 1031 1032 kfree(buf); 1033 return rv; 1034 } 1035 1036 1037 1038 static int get_serial_info(struct usb_serial_port *port, 1039 struct serial_struct __user *retinfo) 1040 { 1041 struct ftdi_private *priv = usb_get_serial_port_data(port); 1042 struct serial_struct tmp; 1043 1044 if (!retinfo) 1045 return -EFAULT; 1046 memset(&tmp, 0, sizeof(tmp)); 1047 tmp.flags = priv->flags; 1048 tmp.baud_base = priv->baud_base; 1049 tmp.custom_divisor = priv->custom_divisor; 1050 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1051 return -EFAULT; 1052 return 0; 1053 } /* get_serial_info */ 1054 1055 1056 static int set_serial_info(struct tty_struct *tty, 1057 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1058 { /* set_serial_info */ 1059 struct ftdi_private *priv = usb_get_serial_port_data(port); 1060 struct serial_struct new_serial; 1061 struct ftdi_private old_priv; 1062 1063 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1064 return -EFAULT; 1065 1066 lock_kernel(); 1067 old_priv = *priv; 1068 1069 /* Do error checking and permission checking */ 1070 1071 if (!capable(CAP_SYS_ADMIN)) { 1072 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1073 (priv->flags & ~ASYNC_USR_MASK))) { 1074 unlock_kernel(); 1075 return -EPERM; 1076 } 1077 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1078 (new_serial.flags & ASYNC_USR_MASK)); 1079 priv->custom_divisor = new_serial.custom_divisor; 1080 goto check_and_exit; 1081 } 1082 1083 if ((new_serial.baud_base != priv->baud_base) && 1084 (new_serial.baud_base < 9600)) { 1085 unlock_kernel(); 1086 return -EINVAL; 1087 } 1088 1089 /* Make the changes - these are privileged changes! */ 1090 1091 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1092 (new_serial.flags & ASYNC_FLAGS)); 1093 priv->custom_divisor = new_serial.custom_divisor; 1094 1095 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1096 1097 check_and_exit: 1098 if ((old_priv.flags & ASYNC_SPD_MASK) != 1099 (priv->flags & ASYNC_SPD_MASK)) { 1100 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1101 tty->alt_speed = 57600; 1102 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1103 tty->alt_speed = 115200; 1104 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1105 tty->alt_speed = 230400; 1106 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1107 tty->alt_speed = 460800; 1108 else 1109 tty->alt_speed = 0; 1110 } 1111 if (((old_priv.flags & ASYNC_SPD_MASK) != 1112 (priv->flags & ASYNC_SPD_MASK)) || 1113 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1114 (old_priv.custom_divisor != priv->custom_divisor))) { 1115 unlock_kernel(); 1116 change_speed(tty, port); 1117 } 1118 else 1119 unlock_kernel(); 1120 return 0; 1121 1122 } /* set_serial_info */ 1123 1124 1125 /* Determine type of FTDI chip based on USB config and descriptor. */ 1126 static void ftdi_determine_type(struct usb_serial_port *port) 1127 { 1128 struct ftdi_private *priv = usb_get_serial_port_data(port); 1129 struct usb_serial *serial = port->serial; 1130 struct usb_device *udev = serial->dev; 1131 unsigned version; 1132 unsigned interfaces; 1133 1134 /* Assume it is not the original SIO device for now. */ 1135 priv->baud_base = 48000000 / 2; 1136 priv->write_offset = 0; 1137 1138 version = le16_to_cpu(udev->descriptor.bcdDevice); 1139 interfaces = udev->actconfig->desc.bNumInterfaces; 1140 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1141 version, interfaces); 1142 if (interfaces > 1) { 1143 int inter; 1144 1145 /* Multiple interfaces. Assume FT2232C. */ 1146 priv->chip_type = FT2232C; 1147 /* Determine interface code. */ 1148 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1149 if (inter == 0) 1150 priv->interface = PIT_SIOA; 1151 else 1152 priv->interface = PIT_SIOB; 1153 /* BM-type devices have a bug where bcdDevice gets set 1154 * to 0x200 when iSerialNumber is 0. */ 1155 if (version < 0x500) { 1156 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1157 __func__); 1158 } 1159 } else if (version < 0x200) { 1160 /* Old device. Assume its the original SIO. */ 1161 priv->chip_type = SIO; 1162 priv->baud_base = 12000000 / 16; 1163 priv->write_offset = 1; 1164 } else if (version < 0x400) { 1165 /* Assume its an FT8U232AM (or FT8U245AM) */ 1166 /* (It might be a BM because of the iSerialNumber bug, 1167 * but it will still work as an AM device.) */ 1168 priv->chip_type = FT8U232AM; 1169 } else if (version < 0x600) { 1170 /* Assume its an FT232BM (or FT245BM) */ 1171 priv->chip_type = FT232BM; 1172 } else { 1173 /* Assume its an FT232R */ 1174 priv->chip_type = FT232RL; 1175 } 1176 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); 1177 } 1178 1179 1180 /* 1181 * *************************************************************************** 1182 * Sysfs Attribute 1183 * *************************************************************************** 1184 */ 1185 1186 static ssize_t show_latency_timer(struct device *dev, 1187 struct device_attribute *attr, char *buf) 1188 { 1189 struct usb_serial_port *port = to_usb_serial_port(dev); 1190 struct ftdi_private *priv = usb_get_serial_port_data(port); 1191 struct usb_device *udev = port->serial->dev; 1192 unsigned short latency = 0; 1193 int rv = 0; 1194 1195 1196 dbg("%s", __func__); 1197 1198 rv = usb_control_msg(udev, 1199 usb_rcvctrlpipe(udev, 0), 1200 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1201 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1202 0, priv->interface, 1203 (char *) &latency, 1, WDR_TIMEOUT); 1204 1205 if (rv < 0) { 1206 dev_err(dev, "Unable to read latency timer: %i\n", rv); 1207 return -EIO; 1208 } 1209 return sprintf(buf, "%i\n", latency); 1210 } 1211 1212 /* Write a new value of the latency timer, in units of milliseconds. */ 1213 static ssize_t store_latency_timer(struct device *dev, 1214 struct device_attribute *attr, const char *valbuf, 1215 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 latency timer = %i", __func__, v); 1225 1226 rv = usb_control_msg(udev, 1227 usb_sndctrlpipe(udev, 0), 1228 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1229 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1230 v, priv->interface, 1231 buf, 0, WDR_TIMEOUT); 1232 1233 if (rv < 0) { 1234 dev_err(dev, "Unable to write latency timer: %i\n", rv); 1235 return -EIO; 1236 } 1237 1238 return count; 1239 } 1240 1241 /* Write an event character directly to the FTDI register. The ASCII 1242 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1243 static ssize_t store_event_char(struct device *dev, 1244 struct device_attribute *attr, const char *valbuf, size_t count) 1245 { 1246 struct usb_serial_port *port = to_usb_serial_port(dev); 1247 struct ftdi_private *priv = usb_get_serial_port_data(port); 1248 struct usb_device *udev = port->serial->dev; 1249 char buf[1]; 1250 int v = simple_strtoul(valbuf, NULL, 10); 1251 int rv = 0; 1252 1253 dbg("%s: setting event char = %i", __func__, v); 1254 1255 rv = usb_control_msg(udev, 1256 usb_sndctrlpipe(udev, 0), 1257 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1258 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1259 v, priv->interface, 1260 buf, 0, WDR_TIMEOUT); 1261 1262 if (rv < 0) { 1263 dbg("Unable to write event character: %i", rv); 1264 return -EIO; 1265 } 1266 1267 return count; 1268 } 1269 1270 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1271 store_latency_timer); 1272 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1273 1274 static int create_sysfs_attrs(struct usb_serial_port *port) 1275 { 1276 struct ftdi_private *priv = usb_get_serial_port_data(port); 1277 int retval = 0; 1278 1279 dbg("%s", __func__); 1280 1281 /* XXX I've no idea if the original SIO supports the event_char 1282 * sysfs parameter, so I'm playing it safe. */ 1283 if (priv->chip_type != SIO) { 1284 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1285 retval = device_create_file(&port->dev, &dev_attr_event_char); 1286 if ((!retval) && 1287 (priv->chip_type == FT232BM || 1288 priv->chip_type == FT2232C || 1289 priv->chip_type == FT232RL)) { 1290 retval = device_create_file(&port->dev, 1291 &dev_attr_latency_timer); 1292 } 1293 } 1294 return retval; 1295 } 1296 1297 static void remove_sysfs_attrs(struct usb_serial_port *port) 1298 { 1299 struct ftdi_private *priv = usb_get_serial_port_data(port); 1300 1301 dbg("%s", __func__); 1302 1303 /* XXX see create_sysfs_attrs */ 1304 if (priv->chip_type != SIO) { 1305 device_remove_file(&port->dev, &dev_attr_event_char); 1306 if (priv->chip_type == FT232BM || 1307 priv->chip_type == FT2232C || 1308 priv->chip_type == FT232RL) { 1309 device_remove_file(&port->dev, &dev_attr_latency_timer); 1310 } 1311 } 1312 1313 } 1314 1315 /* 1316 * *************************************************************************** 1317 * FTDI driver specific functions 1318 * *************************************************************************** 1319 */ 1320 1321 /* Probe function to check for special devices */ 1322 static int ftdi_sio_probe(struct usb_serial *serial, 1323 const struct usb_device_id *id) 1324 { 1325 struct ftdi_sio_quirk *quirk = 1326 (struct ftdi_sio_quirk *)id->driver_info; 1327 1328 if (quirk && quirk->probe) { 1329 int ret = quirk->probe(serial); 1330 if (ret != 0) 1331 return ret; 1332 } 1333 1334 usb_set_serial_data(serial, (void *)id->driver_info); 1335 1336 return 0; 1337 } 1338 1339 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1340 { 1341 struct ftdi_private *priv; 1342 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1343 1344 1345 dbg("%s", __func__); 1346 1347 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1348 if (!priv) { 1349 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, 1350 sizeof(struct ftdi_private)); 1351 return -ENOMEM; 1352 } 1353 1354 spin_lock_init(&priv->rx_lock); 1355 spin_lock_init(&priv->tx_lock); 1356 init_waitqueue_head(&priv->delta_msr_wait); 1357 /* This will push the characters through immediately rather 1358 than queue a task to deliver them */ 1359 priv->flags = ASYNC_LOW_LATENCY; 1360 1361 if (quirk && quirk->port_probe) 1362 quirk->port_probe(priv); 1363 1364 /* Increase the size of read buffers */ 1365 kfree(port->bulk_in_buffer); 1366 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1367 if (!port->bulk_in_buffer) { 1368 kfree(priv); 1369 return -ENOMEM; 1370 } 1371 if (port->read_urb) { 1372 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1373 port->read_urb->transfer_buffer_length = BUFSZ; 1374 } 1375 1376 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1377 priv->port = port; 1378 1379 /* Free port's existing write urb and transfer buffer. */ 1380 if (port->write_urb) { 1381 usb_free_urb(port->write_urb); 1382 port->write_urb = NULL; 1383 } 1384 kfree(port->bulk_out_buffer); 1385 port->bulk_out_buffer = NULL; 1386 1387 usb_set_serial_port_data(port, priv); 1388 1389 ftdi_determine_type(port); 1390 create_sysfs_attrs(port); 1391 return 0; 1392 } 1393 1394 /* Setup for the USB-UIRT device, which requires hardwired 1395 * baudrate (38400 gets mapped to 312500) */ 1396 /* Called from usbserial:serial_probe */ 1397 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1398 { 1399 dbg("%s", __func__); 1400 1401 priv->flags |= ASYNC_SPD_CUST; 1402 priv->custom_divisor = 77; 1403 priv->force_baud = 38400; 1404 } /* ftdi_USB_UIRT_setup */ 1405 1406 /* Setup for the HE-TIRA1 device, which requires hardwired 1407 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1408 1409 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1410 { 1411 dbg("%s", __func__); 1412 1413 priv->flags |= ASYNC_SPD_CUST; 1414 priv->custom_divisor = 240; 1415 priv->force_baud = 38400; 1416 priv->force_rtscts = 1; 1417 } /* ftdi_HE_TIRA1_setup */ 1418 1419 /* 1420 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1421 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1422 * userspace using openocd. 1423 */ 1424 static int ftdi_jtag_probe(struct usb_serial *serial) 1425 { 1426 struct usb_device *udev = serial->dev; 1427 struct usb_interface *interface = serial->interface; 1428 1429 dbg("%s", __func__); 1430 1431 if (interface == udev->actconfig->interface[0]) { 1432 dev_info(&udev->dev, 1433 "Ignoring serial port reserved for JTAG\n"); 1434 return -ENODEV; 1435 } 1436 1437 return 0; 1438 } 1439 1440 /* 1441 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1442 * We have to correct it if we want to read from it. 1443 */ 1444 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1445 { 1446 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1447 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1448 1449 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1450 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1451 dev_info(&serial->dev->dev, 1452 "Fixing invalid wMaxPacketSize on read pipe\n"); 1453 } 1454 1455 return 0; 1456 } 1457 1458 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect 1459 * it is called when the usb device is disconnected 1460 * 1461 * usbserial:usb_serial_disconnect 1462 * calls __serial_close for each open of the port 1463 * shutdown is called then (ie ftdi_shutdown) 1464 */ 1465 static void ftdi_shutdown(struct usb_serial *serial) 1466 { 1467 dbg("%s", __func__); 1468 } 1469 1470 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1471 { 1472 struct ftdi_private *priv = usb_get_serial_port_data(port); 1473 1474 dbg("%s", __func__); 1475 1476 remove_sysfs_attrs(port); 1477 1478 /* all open ports are closed at this point 1479 * (by usbserial.c:__serial_close, which calls ftdi_close) 1480 */ 1481 1482 if (priv) { 1483 usb_set_serial_port_data(port, NULL); 1484 kfree(priv); 1485 } 1486 1487 return 0; 1488 } 1489 1490 static int ftdi_open(struct tty_struct *tty, 1491 struct usb_serial_port *port, struct file *filp) 1492 { /* ftdi_open */ 1493 struct usb_device *dev = port->serial->dev; 1494 struct ftdi_private *priv = usb_get_serial_port_data(port); 1495 unsigned long flags; 1496 1497 int result = 0; 1498 char buf[1]; /* Needed for the usb_control_msg I think */ 1499 1500 dbg("%s", __func__); 1501 1502 spin_lock_irqsave(&priv->tx_lock, flags); 1503 priv->tx_bytes = 0; 1504 spin_unlock_irqrestore(&priv->tx_lock, flags); 1505 spin_lock_irqsave(&priv->rx_lock, flags); 1506 priv->rx_bytes = 0; 1507 spin_unlock_irqrestore(&priv->rx_lock, flags); 1508 1509 if (tty) 1510 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1511 1512 /* No error checking for this (will get errors later anyway) */ 1513 /* See ftdi_sio.h for description of what is reset */ 1514 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1515 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1516 FTDI_SIO_RESET_SIO, 1517 priv->interface, buf, 0, WDR_TIMEOUT); 1518 1519 /* Termios defaults are set by usb_serial_init. We don't change 1520 port->tty->termios - this would lose speed settings, etc. 1521 This is same behaviour as serial.c/rs_open() - Kuba */ 1522 1523 /* ftdi_set_termios will send usb control messages */ 1524 if (tty) 1525 ftdi_set_termios(tty, port, tty->termios); 1526 1527 /* FIXME: Flow control might be enabled, so it should be checked - 1528 we have no control of defaults! */ 1529 /* Turn on RTS and DTR since we are not flow controlling by default */ 1530 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1531 1532 /* Not throttled */ 1533 spin_lock_irqsave(&priv->rx_lock, flags); 1534 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1535 spin_unlock_irqrestore(&priv->rx_lock, flags); 1536 1537 /* Start reading from the device */ 1538 priv->rx_processed = 0; 1539 usb_fill_bulk_urb(port->read_urb, dev, 1540 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1541 port->read_urb->transfer_buffer, 1542 port->read_urb->transfer_buffer_length, 1543 ftdi_read_bulk_callback, port); 1544 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1545 if (result) 1546 dev_err(&port->dev, 1547 "%s - failed submitting read urb, error %d\n", 1548 __func__, result); 1549 1550 1551 return result; 1552 } /* ftdi_open */ 1553 1554 1555 1556 /* 1557 * usbserial:__serial_close only calls ftdi_close if the point is open 1558 * 1559 * This only gets called when it is the last close 1560 * 1561 * 1562 */ 1563 1564 static void ftdi_close(struct tty_struct *tty, 1565 struct usb_serial_port *port, struct file *filp) 1566 { /* ftdi_close */ 1567 unsigned int c_cflag = tty->termios->c_cflag; 1568 struct ftdi_private *priv = usb_get_serial_port_data(port); 1569 char buf[1]; 1570 1571 dbg("%s", __func__); 1572 1573 mutex_lock(&port->serial->disc_mutex); 1574 if (c_cflag & HUPCL && !port->serial->disconnected) { 1575 /* Disable flow control */ 1576 if (usb_control_msg(port->serial->dev, 1577 usb_sndctrlpipe(port->serial->dev, 0), 1578 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1579 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1580 0, priv->interface, buf, 0, 1581 WDR_TIMEOUT) < 0) { 1582 dev_err(&port->dev, "error from flowcontrol urb\n"); 1583 } 1584 1585 /* drop RTS and DTR */ 1586 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1587 } /* Note change no line if hupcl is off */ 1588 mutex_unlock(&port->serial->disc_mutex); 1589 1590 /* cancel any scheduled reading */ 1591 cancel_delayed_work(&priv->rx_work); 1592 flush_scheduled_work(); 1593 1594 /* shutdown our bulk read */ 1595 usb_kill_urb(port->read_urb); 1596 } /* ftdi_close */ 1597 1598 1599 1600 /* The SIO requires the first byte to have: 1601 * B0 1 1602 * B1 0 1603 * B2..7 length of message excluding byte 0 1604 * 1605 * The new devices do not require this byte 1606 */ 1607 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1608 const unsigned char *buf, int count) 1609 { /* ftdi_write */ 1610 struct ftdi_private *priv = usb_get_serial_port_data(port); 1611 struct urb *urb; 1612 unsigned char *buffer; 1613 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1614 int status; 1615 int transfer_size; 1616 unsigned long flags; 1617 1618 dbg("%s port %d, %d bytes", __func__, port->number, count); 1619 1620 if (count == 0) { 1621 dbg("write request of 0 bytes"); 1622 return 0; 1623 } 1624 spin_lock_irqsave(&priv->tx_lock, flags); 1625 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1626 spin_unlock_irqrestore(&priv->tx_lock, flags); 1627 dbg("%s - write limit hit\n", __func__); 1628 return 0; 1629 } 1630 priv->tx_outstanding_urbs++; 1631 spin_unlock_irqrestore(&priv->tx_lock, flags); 1632 1633 data_offset = priv->write_offset; 1634 dbg("data_offset set to %d", data_offset); 1635 1636 /* Determine total transfer size */ 1637 transfer_size = count; 1638 if (data_offset > 0) { 1639 /* Original sio needs control bytes too... */ 1640 transfer_size += (data_offset * 1641 ((count + (PKTSZ - 1 - data_offset)) / 1642 (PKTSZ - data_offset))); 1643 } 1644 1645 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1646 if (!buffer) { 1647 dev_err(&port->dev, 1648 "%s ran out of kernel memory for urb ...\n", __func__); 1649 count = -ENOMEM; 1650 goto error_no_buffer; 1651 } 1652 1653 urb = usb_alloc_urb(0, GFP_ATOMIC); 1654 if (!urb) { 1655 dev_err(&port->dev, "%s - no more free urbs\n", __func__); 1656 count = -ENOMEM; 1657 goto error_no_urb; 1658 } 1659 1660 /* Copy data */ 1661 if (data_offset > 0) { 1662 /* Original sio requires control byte at start of 1663 each packet. */ 1664 int user_pktsz = PKTSZ - data_offset; 1665 int todo = count; 1666 unsigned char *first_byte = buffer; 1667 const unsigned char *current_position = buf; 1668 1669 while (todo > 0) { 1670 if (user_pktsz > todo) 1671 user_pktsz = todo; 1672 /* Write the control byte at the front of the packet*/ 1673 *first_byte = 1 | ((user_pktsz) << 2); 1674 /* Copy data for packet */ 1675 memcpy(first_byte + data_offset, 1676 current_position, user_pktsz); 1677 first_byte += user_pktsz + data_offset; 1678 current_position += user_pktsz; 1679 todo -= user_pktsz; 1680 } 1681 } else { 1682 /* No control byte required. */ 1683 /* Copy in the data to send */ 1684 memcpy(buffer, buf, count); 1685 } 1686 1687 usb_serial_debug_data(debug, &port->dev, __func__, 1688 transfer_size, buffer); 1689 1690 /* fill the buffer and send it */ 1691 usb_fill_bulk_urb(urb, port->serial->dev, 1692 usb_sndbulkpipe(port->serial->dev, 1693 port->bulk_out_endpointAddress), 1694 buffer, transfer_size, 1695 ftdi_write_bulk_callback, port); 1696 1697 status = usb_submit_urb(urb, GFP_ATOMIC); 1698 if (status) { 1699 dev_err(&port->dev, 1700 "%s - failed submitting write urb, error %d\n", 1701 __func__, status); 1702 count = status; 1703 goto error; 1704 } else { 1705 spin_lock_irqsave(&priv->tx_lock, flags); 1706 priv->tx_outstanding_bytes += count; 1707 priv->tx_bytes += count; 1708 spin_unlock_irqrestore(&priv->tx_lock, flags); 1709 } 1710 1711 /* we are done with this urb, so let the host driver 1712 * really free it when it is finished with it */ 1713 usb_free_urb(urb); 1714 1715 dbg("%s write returning: %d", __func__, count); 1716 return count; 1717 error: 1718 usb_free_urb(urb); 1719 error_no_urb: 1720 kfree(buffer); 1721 error_no_buffer: 1722 spin_lock_irqsave(&priv->tx_lock, flags); 1723 priv->tx_outstanding_urbs--; 1724 spin_unlock_irqrestore(&priv->tx_lock, flags); 1725 return count; 1726 } /* ftdi_write */ 1727 1728 1729 /* This function may get called when the device is closed */ 1730 1731 static void ftdi_write_bulk_callback(struct urb *urb) 1732 { 1733 unsigned long flags; 1734 struct usb_serial_port *port = urb->context; 1735 struct ftdi_private *priv; 1736 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1737 unsigned long countback; 1738 int status = urb->status; 1739 1740 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1741 kfree(urb->transfer_buffer); 1742 1743 dbg("%s - port %d", __func__, port->number); 1744 1745 if (status) { 1746 dbg("nonzero write bulk status received: %d", status); 1747 return; 1748 } 1749 1750 priv = usb_get_serial_port_data(port); 1751 if (!priv) { 1752 dbg("%s - bad port private data pointer - exiting", __func__); 1753 return; 1754 } 1755 /* account for transferred data */ 1756 countback = urb->actual_length; 1757 data_offset = priv->write_offset; 1758 if (data_offset > 0) { 1759 /* Subtract the control bytes */ 1760 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ)); 1761 } 1762 spin_lock_irqsave(&priv->tx_lock, flags); 1763 --priv->tx_outstanding_urbs; 1764 priv->tx_outstanding_bytes -= countback; 1765 spin_unlock_irqrestore(&priv->tx_lock, flags); 1766 1767 usb_serial_port_softint(port); 1768 } /* ftdi_write_bulk_callback */ 1769 1770 1771 static int ftdi_write_room(struct tty_struct *tty) 1772 { 1773 struct usb_serial_port *port = tty->driver_data; 1774 struct ftdi_private *priv = usb_get_serial_port_data(port); 1775 int room; 1776 unsigned long flags; 1777 1778 dbg("%s - port %d", __func__, port->number); 1779 1780 spin_lock_irqsave(&priv->tx_lock, flags); 1781 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1782 /* 1783 * We really can take anything the user throws at us 1784 * but let's pick a nice big number to tell the tty 1785 * layer that we have lots of free space 1786 */ 1787 room = 2048; 1788 } else { 1789 room = 0; 1790 } 1791 spin_unlock_irqrestore(&priv->tx_lock, flags); 1792 return room; 1793 } 1794 1795 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1796 { 1797 struct usb_serial_port *port = tty->driver_data; 1798 struct ftdi_private *priv = usb_get_serial_port_data(port); 1799 int buffered; 1800 unsigned long flags; 1801 1802 dbg("%s - port %d", __func__, port->number); 1803 1804 spin_lock_irqsave(&priv->tx_lock, flags); 1805 buffered = (int)priv->tx_outstanding_bytes; 1806 spin_unlock_irqrestore(&priv->tx_lock, flags); 1807 if (buffered < 0) { 1808 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", 1809 __func__); 1810 buffered = 0; 1811 } 1812 return buffered; 1813 } 1814 1815 static void ftdi_read_bulk_callback(struct urb *urb) 1816 { 1817 struct usb_serial_port *port = urb->context; 1818 struct tty_struct *tty; 1819 struct ftdi_private *priv; 1820 unsigned long countread; 1821 unsigned long flags; 1822 int status = urb->status; 1823 1824 if (urb->number_of_packets > 0) { 1825 dev_err(&port->dev, "%s transfer_buffer_length %d " 1826 "actual_length %d number of packets %d\n", __func__, 1827 urb->transfer_buffer_length, 1828 urb->actual_length, urb->number_of_packets); 1829 dev_err(&port->dev, "%s transfer_flags %x\n", __func__, 1830 urb->transfer_flags); 1831 } 1832 1833 dbg("%s - port %d", __func__, port->number); 1834 1835 if (port->port.count <= 0) 1836 return; 1837 1838 tty = tty_port_tty_get(&port->port); 1839 if (!tty) { 1840 dbg("%s - bad tty pointer - exiting", __func__); 1841 return; 1842 } 1843 1844 priv = usb_get_serial_port_data(port); 1845 if (!priv) { 1846 dbg("%s - bad port private data pointer - exiting", __func__); 1847 goto out; 1848 } 1849 1850 if (urb != port->read_urb) 1851 dev_err(&port->dev, "%s - Not my urb!\n", __func__); 1852 1853 if (status) { 1854 /* This will happen at close every time so it is a dbg not an 1855 err */ 1856 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 1857 goto out; 1858 } 1859 1860 /* count data bytes, but not status bytes */ 1861 countread = urb->actual_length; 1862 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ); 1863 spin_lock_irqsave(&priv->rx_lock, flags); 1864 priv->rx_bytes += countread; 1865 spin_unlock_irqrestore(&priv->rx_lock, flags); 1866 1867 ftdi_process_read(&priv->rx_work.work); 1868 out: 1869 tty_kref_put(tty); 1870 } /* ftdi_read_bulk_callback */ 1871 1872 1873 static void ftdi_process_read(struct work_struct *work) 1874 { /* ftdi_process_read */ 1875 struct ftdi_private *priv = 1876 container_of(work, struct ftdi_private, rx_work.work); 1877 struct usb_serial_port *port = priv->port; 1878 struct urb *urb; 1879 struct tty_struct *tty; 1880 char error_flag; 1881 unsigned char *data; 1882 1883 int i; 1884 int result; 1885 int need_flip; 1886 int packet_offset; 1887 unsigned long flags; 1888 1889 dbg("%s - port %d", __func__, port->number); 1890 1891 if (port->port.count <= 0) 1892 return; 1893 1894 tty = tty_port_tty_get(&port->port); 1895 if (!tty) { 1896 dbg("%s - bad tty pointer - exiting", __func__); 1897 return; 1898 } 1899 1900 priv = usb_get_serial_port_data(port); 1901 if (!priv) { 1902 dbg("%s - bad port private data pointer - exiting", __func__); 1903 goto out; 1904 } 1905 1906 urb = port->read_urb; 1907 if (!urb) { 1908 dbg("%s - bad read_urb pointer - exiting", __func__); 1909 goto out; 1910 } 1911 1912 data = urb->transfer_buffer; 1913 1914 if (priv->rx_processed) { 1915 dbg("%s - already processed: %d bytes, %d remain", __func__, 1916 priv->rx_processed, 1917 urb->actual_length - priv->rx_processed); 1918 } else { 1919 /* The first two bytes of every read packet are status */ 1920 if (urb->actual_length > 2) 1921 usb_serial_debug_data(debug, &port->dev, __func__, 1922 urb->actual_length, data); 1923 else 1924 dbg("Status only: %03oo %03oo", data[0], data[1]); 1925 } 1926 1927 1928 /* TO DO -- check for hung up line and handle appropriately: */ 1929 /* send hangup */ 1930 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 1931 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 1932 1933 need_flip = 0; 1934 for (packet_offset = priv->rx_processed; 1935 packet_offset < urb->actual_length; packet_offset += PKTSZ) { 1936 int length; 1937 1938 /* Compare new line status to the old one, signal if different/ 1939 N.B. packet may be processed more than once, but differences 1940 are only processed once. */ 1941 char new_status = data[packet_offset + 0] & 1942 FTDI_STATUS_B0_MASK; 1943 if (new_status != priv->prev_status) { 1944 priv->diff_status |= 1945 new_status ^ priv->prev_status; 1946 wake_up_interruptible(&priv->delta_msr_wait); 1947 priv->prev_status = new_status; 1948 } 1949 1950 length = min_t(u32, PKTSZ, urb->actual_length-packet_offset)-2; 1951 if (length < 0) { 1952 dev_err(&port->dev, "%s - bad packet length: %d\n", 1953 __func__, length+2); 1954 length = 0; 1955 } 1956 1957 if (priv->rx_flags & THROTTLED) { 1958 dbg("%s - throttled", __func__); 1959 break; 1960 } 1961 if (tty_buffer_request_room(tty, length) < length) { 1962 /* break out & wait for throttling/unthrottling to 1963 happen */ 1964 dbg("%s - receive room low", __func__); 1965 break; 1966 } 1967 1968 /* Handle errors and break */ 1969 error_flag = TTY_NORMAL; 1970 /* Although the device uses a bitmask and hence can have 1971 multiple errors on a packet - the order here sets the 1972 priority the error is returned to the tty layer */ 1973 1974 if (data[packet_offset+1] & FTDI_RS_OE) { 1975 error_flag = TTY_OVERRUN; 1976 dbg("OVERRRUN error"); 1977 } 1978 if (data[packet_offset+1] & FTDI_RS_BI) { 1979 error_flag = TTY_BREAK; 1980 dbg("BREAK received"); 1981 } 1982 if (data[packet_offset+1] & FTDI_RS_PE) { 1983 error_flag = TTY_PARITY; 1984 dbg("PARITY error"); 1985 } 1986 if (data[packet_offset+1] & FTDI_RS_FE) { 1987 error_flag = TTY_FRAME; 1988 dbg("FRAMING error"); 1989 } 1990 if (length > 0) { 1991 for (i = 2; i < length+2; i++) { 1992 /* Note that the error flag is duplicated for 1993 every character received since we don't know 1994 which character it applied to */ 1995 tty_insert_flip_char(tty, 1996 data[packet_offset + i], error_flag); 1997 } 1998 need_flip = 1; 1999 } 2000 2001 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 2002 /* if a parity error is detected you get status packets forever 2003 until a character is sent without a parity error. 2004 This doesn't work well since the application receives a 2005 never ending stream of bad data - even though new data 2006 hasn't been sent. Therefore I (bill) have taken this out. 2007 However - this might make sense for framing errors and so on 2008 so I am leaving the code in for now. 2009 */ 2010 else { 2011 if (error_flag != TTY_NORMAL) { 2012 dbg("error_flag is not normal"); 2013 /* In this case it is just status - if that is 2014 an error send a bad character */ 2015 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 2016 tty_flip_buffer_push(tty); 2017 tty_insert_flip_char(tty, 0xff, error_flag); 2018 need_flip = 1; 2019 } 2020 } 2021 #endif 2022 } /* "for(packet_offset=0..." */ 2023 2024 /* Low latency */ 2025 if (need_flip) 2026 tty_flip_buffer_push(tty); 2027 2028 if (packet_offset < urb->actual_length) { 2029 /* not completely processed - record progress */ 2030 priv->rx_processed = packet_offset; 2031 dbg("%s - incomplete, %d bytes processed, %d remain", 2032 __func__, packet_offset, 2033 urb->actual_length - packet_offset); 2034 /* check if we were throttled while processing */ 2035 spin_lock_irqsave(&priv->rx_lock, flags); 2036 if (priv->rx_flags & THROTTLED) { 2037 priv->rx_flags |= ACTUALLY_THROTTLED; 2038 spin_unlock_irqrestore(&priv->rx_lock, flags); 2039 dbg("%s - deferring remainder until unthrottled", 2040 __func__); 2041 goto out; 2042 } 2043 spin_unlock_irqrestore(&priv->rx_lock, flags); 2044 /* if the port is closed stop trying to read */ 2045 if (port->port.count > 0) 2046 /* delay processing of remainder */ 2047 schedule_delayed_work(&priv->rx_work, 1); 2048 else 2049 dbg("%s - port is closed", __func__); 2050 goto out; 2051 } 2052 2053 /* urb is completely processed */ 2054 priv->rx_processed = 0; 2055 2056 /* if the port is closed stop trying to read */ 2057 if (port->port.count > 0) { 2058 /* Continue trying to always read */ 2059 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2060 usb_rcvbulkpipe(port->serial->dev, 2061 port->bulk_in_endpointAddress), 2062 port->read_urb->transfer_buffer, 2063 port->read_urb->transfer_buffer_length, 2064 ftdi_read_bulk_callback, port); 2065 2066 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2067 if (result) 2068 dev_err(&port->dev, 2069 "%s - failed resubmitting read urb, error %d\n", 2070 __func__, result); 2071 } 2072 out: 2073 tty_kref_put(tty); 2074 } /* ftdi_process_read */ 2075 2076 2077 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2078 { 2079 struct usb_serial_port *port = tty->driver_data; 2080 struct ftdi_private *priv = usb_get_serial_port_data(port); 2081 __u16 urb_value = 0; 2082 char buf[1]; 2083 2084 /* break_state = -1 to turn on break, and 0 to turn off break */ 2085 /* see drivers/char/tty_io.c to see it used */ 2086 /* last_set_data_urb_value NEVER has the break bit set in it */ 2087 2088 if (break_state) 2089 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2090 else 2091 urb_value = priv->last_set_data_urb_value; 2092 2093 if (usb_control_msg(port->serial->dev, 2094 usb_sndctrlpipe(port->serial->dev, 0), 2095 FTDI_SIO_SET_DATA_REQUEST, 2096 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2097 urb_value , priv->interface, 2098 buf, 0, WDR_TIMEOUT) < 0) { 2099 dev_err(&port->dev, "%s FAILED to enable/disable break state " 2100 "(state was %d)\n", __func__, break_state); 2101 } 2102 2103 dbg("%s break state is %d - urb is %d", __func__, 2104 break_state, urb_value); 2105 2106 } 2107 2108 2109 /* old_termios contains the original termios settings and tty->termios contains 2110 * the new setting to be used 2111 * WARNING: set_termios calls this with old_termios in kernel space 2112 */ 2113 2114 static void ftdi_set_termios(struct tty_struct *tty, 2115 struct usb_serial_port *port, struct ktermios *old_termios) 2116 { /* ftdi_termios */ 2117 struct usb_device *dev = port->serial->dev; 2118 struct ftdi_private *priv = usb_get_serial_port_data(port); 2119 struct ktermios *termios = tty->termios; 2120 unsigned int cflag = termios->c_cflag; 2121 __u16 urb_value; /* will hold the new flags */ 2122 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2123 2124 /* Added for xon/xoff support */ 2125 unsigned int iflag = termios->c_iflag; 2126 unsigned char vstop; 2127 unsigned char vstart; 2128 2129 dbg("%s", __func__); 2130 2131 /* Force baud rate if this device requires it, unless it is set to 2132 B0. */ 2133 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2134 dbg("%s: forcing baud rate for this device", __func__); 2135 tty_encode_baud_rate(tty, priv->force_baud, 2136 priv->force_baud); 2137 } 2138 2139 /* Force RTS-CTS if this device requires it. */ 2140 if (priv->force_rtscts) { 2141 dbg("%s: forcing rtscts for this device", __func__); 2142 termios->c_cflag |= CRTSCTS; 2143 } 2144 2145 cflag = termios->c_cflag; 2146 2147 /* FIXME -For this cut I don't care if the line is really changing or 2148 not - so just do the change regardless - should be able to 2149 compare old_termios and tty->termios */ 2150 /* NOTE These routines can get interrupted by 2151 ftdi_sio_read_bulk_callback - need to examine what this means - 2152 don't see any problems yet */ 2153 2154 /* Set number of data bits, parity, stop bits */ 2155 2156 termios->c_cflag &= ~CMSPAR; 2157 2158 urb_value = 0; 2159 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2160 FTDI_SIO_SET_DATA_STOP_BITS_1); 2161 urb_value |= (cflag & PARENB ? 2162 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2163 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2164 FTDI_SIO_SET_DATA_PARITY_NONE); 2165 if (cflag & CSIZE) { 2166 switch (cflag & CSIZE) { 2167 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2168 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2169 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2170 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2171 default: 2172 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); 2173 } 2174 } 2175 2176 /* This is needed by the break command since it uses the same command 2177 - but is or'ed with this value */ 2178 priv->last_set_data_urb_value = urb_value; 2179 2180 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2181 FTDI_SIO_SET_DATA_REQUEST, 2182 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2183 urb_value , priv->interface, 2184 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2185 dev_err(&port->dev, "%s FAILED to set " 2186 "databits/stopbits/parity\n", __func__); 2187 } 2188 2189 /* Now do the baudrate */ 2190 if ((cflag & CBAUD) == B0) { 2191 /* Disable flow control */ 2192 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2193 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2194 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2195 0, priv->interface, 2196 buf, 0, WDR_TIMEOUT) < 0) { 2197 dev_err(&port->dev, 2198 "%s error from disable flowcontrol urb\n", 2199 __func__); 2200 } 2201 /* Drop RTS and DTR */ 2202 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2203 } else { 2204 /* set the baudrate determined before */ 2205 if (change_speed(tty, port)) 2206 dev_err(&port->dev, "%s urb failed to set baudrate\n", 2207 __func__); 2208 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2209 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2210 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2211 } 2212 2213 /* Set flow control */ 2214 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2215 if (cflag & CRTSCTS) { 2216 dbg("%s Setting to CRTSCTS flow control", __func__); 2217 if (usb_control_msg(dev, 2218 usb_sndctrlpipe(dev, 0), 2219 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2220 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2221 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2222 buf, 0, WDR_TIMEOUT) < 0) { 2223 dev_err(&port->dev, 2224 "urb failed to set to rts/cts flow control\n"); 2225 } 2226 2227 } else { 2228 /* 2229 * Xon/Xoff code 2230 * 2231 * Check the IXOFF status in the iflag component of the 2232 * termios structure. If IXOFF is not set, the pre-xon/xoff 2233 * code is executed. 2234 */ 2235 if (iflag & IXOFF) { 2236 dbg("%s request to enable xonxoff iflag=%04x", 2237 __func__, iflag); 2238 /* Try to enable the XON/XOFF on the ftdi_sio 2239 * Set the vstart and vstop -- could have been done up 2240 * above where a lot of other dereferencing is done but 2241 * that would be very inefficient as vstart and vstop 2242 * are not always needed. 2243 */ 2244 vstart = termios->c_cc[VSTART]; 2245 vstop = termios->c_cc[VSTOP]; 2246 urb_value = (vstop << 8) | (vstart); 2247 2248 if (usb_control_msg(dev, 2249 usb_sndctrlpipe(dev, 0), 2250 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2251 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2252 urb_value , (FTDI_SIO_XON_XOFF_HS 2253 | priv->interface), 2254 buf, 0, WDR_TIMEOUT) < 0) { 2255 dev_err(&port->dev, "urb failed to set to " 2256 "xon/xoff flow control\n"); 2257 } 2258 } else { 2259 /* else clause to only run if cflag ! CRTSCTS and iflag 2260 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2261 * stack - not by device */ 2262 dbg("%s Turning off hardware flow control", __func__); 2263 if (usb_control_msg(dev, 2264 usb_sndctrlpipe(dev, 0), 2265 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2266 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2267 0, priv->interface, 2268 buf, 0, WDR_TIMEOUT) < 0) { 2269 dev_err(&port->dev, 2270 "urb failed to clear flow control\n"); 2271 } 2272 } 2273 2274 } 2275 return; 2276 } 2277 2278 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2279 { 2280 struct usb_serial_port *port = tty->driver_data; 2281 struct ftdi_private *priv = usb_get_serial_port_data(port); 2282 unsigned char buf[2]; 2283 int ret; 2284 2285 dbg("%s TIOCMGET", __func__); 2286 switch (priv->chip_type) { 2287 case SIO: 2288 /* Request the status from the device */ 2289 ret = usb_control_msg(port->serial->dev, 2290 usb_rcvctrlpipe(port->serial->dev, 0), 2291 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2292 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2293 0, 0, 2294 buf, 1, WDR_TIMEOUT); 2295 if (ret < 0) 2296 return ret; 2297 break; 2298 case FT8U232AM: 2299 case FT232BM: 2300 case FT2232C: 2301 case FT232RL: 2302 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2303 value) - in the same format as the data returned from the in 2304 point */ 2305 ret = usb_control_msg(port->serial->dev, 2306 usb_rcvctrlpipe(port->serial->dev, 0), 2307 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2308 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2309 0, priv->interface, 2310 buf, 2, WDR_TIMEOUT); 2311 if (ret < 0) 2312 return ret; 2313 break; 2314 default: 2315 return -EFAULT; 2316 } 2317 2318 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2319 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2320 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2321 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2322 priv->last_dtr_rts; 2323 } 2324 2325 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2326 unsigned int set, unsigned int clear) 2327 { 2328 struct usb_serial_port *port = tty->driver_data; 2329 dbg("%s TIOCMSET", __func__); 2330 return update_mctrl(port, set, clear); 2331 } 2332 2333 2334 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2335 unsigned int cmd, unsigned long arg) 2336 { 2337 struct usb_serial_port *port = tty->driver_data; 2338 struct ftdi_private *priv = usb_get_serial_port_data(port); 2339 2340 dbg("%s cmd 0x%04x", __func__, cmd); 2341 2342 /* Based on code from acm.c and others */ 2343 switch (cmd) { 2344 2345 case TIOCGSERIAL: /* gets serial port data */ 2346 return get_serial_info(port, 2347 (struct serial_struct __user *) arg); 2348 2349 case TIOCSSERIAL: /* sets serial port data */ 2350 return set_serial_info(tty, port, 2351 (struct serial_struct __user *) arg); 2352 2353 /* 2354 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2355 * - mask passed in arg for lines of interest 2356 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2357 * Caller should use TIOCGICOUNT to see which one it was. 2358 * 2359 * This code is borrowed from linux/drivers/char/serial.c 2360 */ 2361 case TIOCMIWAIT: 2362 while (priv != NULL) { 2363 interruptible_sleep_on(&priv->delta_msr_wait); 2364 /* see if a signal did it */ 2365 if (signal_pending(current)) 2366 return -ERESTARTSYS; 2367 else { 2368 char diff = priv->diff_status; 2369 2370 if (diff == 0) 2371 return -EIO; /* no change => error */ 2372 2373 /* Consume all events */ 2374 priv->diff_status = 0; 2375 2376 /* Return 0 if caller wanted to know about 2377 these bits */ 2378 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2379 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2380 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2381 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2382 return 0; 2383 } 2384 /* 2385 * Otherwise caller can't care less about what 2386 * happened,and so we continue to wait for more 2387 * events. 2388 */ 2389 } 2390 } 2391 return 0; 2392 default: 2393 break; 2394 } 2395 /* This is not necessarily an error - turns out the higher layers 2396 * will do some ioctls themselves (see comment above) 2397 */ 2398 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2399 return -ENOIOCTLCMD; 2400 } 2401 2402 static void ftdi_throttle(struct tty_struct *tty) 2403 { 2404 struct usb_serial_port *port = tty->driver_data; 2405 struct ftdi_private *priv = usb_get_serial_port_data(port); 2406 unsigned long flags; 2407 2408 dbg("%s - port %d", __func__, port->number); 2409 2410 spin_lock_irqsave(&priv->rx_lock, flags); 2411 priv->rx_flags |= THROTTLED; 2412 spin_unlock_irqrestore(&priv->rx_lock, flags); 2413 } 2414 2415 2416 static void ftdi_unthrottle(struct tty_struct *tty) 2417 { 2418 struct usb_serial_port *port = tty->driver_data; 2419 struct ftdi_private *priv = usb_get_serial_port_data(port); 2420 int actually_throttled; 2421 unsigned long flags; 2422 2423 dbg("%s - port %d", __func__, port->number); 2424 2425 spin_lock_irqsave(&priv->rx_lock, flags); 2426 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2427 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2428 spin_unlock_irqrestore(&priv->rx_lock, flags); 2429 2430 if (actually_throttled) 2431 schedule_delayed_work(&priv->rx_work, 0); 2432 } 2433 2434 static int __init ftdi_init(void) 2435 { 2436 int retval; 2437 2438 dbg("%s", __func__); 2439 if (vendor > 0 && product > 0) { 2440 /* Add user specified VID/PID to reserved element of table. */ 2441 int i; 2442 for (i = 0; id_table_combined[i].idVendor; i++) 2443 ; 2444 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2445 id_table_combined[i].idVendor = vendor; 2446 id_table_combined[i].idProduct = product; 2447 } 2448 retval = usb_serial_register(&ftdi_sio_device); 2449 if (retval) 2450 goto failed_sio_register; 2451 retval = usb_register(&ftdi_driver); 2452 if (retval) 2453 goto failed_usb_register; 2454 2455 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 2456 DRIVER_DESC "\n"); 2457 return 0; 2458 failed_usb_register: 2459 usb_serial_deregister(&ftdi_sio_device); 2460 failed_sio_register: 2461 return retval; 2462 } 2463 2464 2465 static void __exit ftdi_exit(void) 2466 { 2467 2468 dbg("%s", __func__); 2469 2470 usb_deregister(&ftdi_driver); 2471 usb_serial_deregister(&ftdi_sio_device); 2472 2473 } 2474 2475 2476 module_init(ftdi_init); 2477 module_exit(ftdi_exit); 2478 2479 MODULE_AUTHOR(DRIVER_AUTHOR); 2480 MODULE_DESCRIPTION(DRIVER_DESC); 2481 MODULE_LICENSE("GPL"); 2482 2483 module_param(debug, bool, S_IRUGO | S_IWUSR); 2484 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2485 module_param(vendor, ushort, 0); 2486 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2487 __MODULE_STRING(FTDI_VID)")"); 2488 module_param(product, ushort, 0); 2489 MODULE_PARM_DESC(product, "User specified product ID"); 2490 2491