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, FTDI_ELV_HS485_PID) }, 567 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, 568 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, 569 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) }, 570 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) }, 571 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) }, 572 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) }, 573 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) }, 574 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) }, 575 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) }, 576 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) }, 577 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) }, 578 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) }, 579 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) }, 580 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) }, 581 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, 582 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, 583 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, 584 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, 585 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, 586 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, 587 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, 588 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, 589 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) }, 590 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) }, 591 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) }, 592 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) }, 593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) }, 594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) }, 595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) }, 596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) }, 597 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, 598 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, 599 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) }, 600 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) }, 601 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) }, 602 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) }, 603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) }, 604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) }, 605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) }, 606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) }, 607 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) }, 608 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) }, 609 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, 610 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, 611 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, 612 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, 613 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, 614 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, 615 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) }, 616 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) }, 617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) }, 618 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) }, 619 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) }, 620 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) }, 621 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) }, 622 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) }, 623 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) }, 624 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) }, 625 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, 626 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, 627 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, 628 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, 629 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, 630 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) }, 631 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) }, 632 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) }, 633 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) }, 634 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) }, 635 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) }, 636 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) }, 637 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) }, 638 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) }, 639 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, 640 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, 641 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) }, 642 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, 643 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, 644 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, 645 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), 646 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 647 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), 648 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 649 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), 650 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 651 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID), 652 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 653 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID), 654 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 655 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, 656 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, 657 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) }, 658 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) }, 659 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) }, 660 { }, /* Optional parameter entry */ 661 { } /* Terminating entry */ 662 }; 663 664 MODULE_DEVICE_TABLE(usb, id_table_combined); 665 666 static struct usb_driver ftdi_driver = { 667 .name = "ftdi_sio", 668 .probe = usb_serial_probe, 669 .disconnect = usb_serial_disconnect, 670 .id_table = id_table_combined, 671 .no_dynamic_id = 1, 672 }; 673 674 static const char *ftdi_chip_name[] = { 675 [SIO] = "SIO", /* the serial part of FT8U100AX */ 676 [FT8U232AM] = "FT8U232AM", 677 [FT232BM] = "FT232BM", 678 [FT2232C] = "FT2232C", 679 [FT232RL] = "FT232RL", 680 }; 681 682 683 /* Constants for read urb and write urb */ 684 #define BUFSZ 512 685 #define PKTSZ 64 686 687 /* rx_flags */ 688 #define THROTTLED 0x01 689 #define ACTUALLY_THROTTLED 0x02 690 691 /* Used for TIOCMIWAIT */ 692 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 693 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 694 /* End TIOCMIWAIT */ 695 696 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 697 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 698 699 /* function prototypes for a FTDI serial converter */ 700 static int ftdi_sio_probe(struct usb_serial *serial, 701 const struct usb_device_id *id); 702 static void ftdi_shutdown(struct usb_serial *serial); 703 static int ftdi_sio_port_probe(struct usb_serial_port *port); 704 static int ftdi_sio_port_remove(struct usb_serial_port *port); 705 static int ftdi_open(struct tty_struct *tty, 706 struct usb_serial_port *port, struct file *filp); 707 static void ftdi_close(struct tty_struct *tty, 708 struct usb_serial_port *port, struct file *filp); 709 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 710 const unsigned char *buf, int count); 711 static int ftdi_write_room(struct tty_struct *tty); 712 static int ftdi_chars_in_buffer(struct tty_struct *tty); 713 static void ftdi_write_bulk_callback(struct urb *urb); 714 static void ftdi_read_bulk_callback(struct urb *urb); 715 static void ftdi_process_read(struct work_struct *work); 716 static void ftdi_set_termios(struct tty_struct *tty, 717 struct usb_serial_port *port, struct ktermios *old); 718 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 719 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 720 unsigned int set, unsigned int clear); 721 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 722 unsigned int cmd, unsigned long arg); 723 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 724 static void ftdi_throttle(struct tty_struct *tty); 725 static void ftdi_unthrottle(struct tty_struct *tty); 726 727 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 728 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 729 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 730 static __u32 ftdi_232bm_baud_to_divisor(int baud); 731 732 static struct usb_serial_driver ftdi_sio_device = { 733 .driver = { 734 .owner = THIS_MODULE, 735 .name = "ftdi_sio", 736 }, 737 .description = "FTDI USB Serial Device", 738 .usb_driver = &ftdi_driver , 739 .id_table = id_table_combined, 740 .num_ports = 1, 741 .probe = ftdi_sio_probe, 742 .port_probe = ftdi_sio_port_probe, 743 .port_remove = ftdi_sio_port_remove, 744 .open = ftdi_open, 745 .close = ftdi_close, 746 .throttle = ftdi_throttle, 747 .unthrottle = ftdi_unthrottle, 748 .write = ftdi_write, 749 .write_room = ftdi_write_room, 750 .chars_in_buffer = ftdi_chars_in_buffer, 751 .read_bulk_callback = ftdi_read_bulk_callback, 752 .write_bulk_callback = ftdi_write_bulk_callback, 753 .tiocmget = ftdi_tiocmget, 754 .tiocmset = ftdi_tiocmset, 755 .ioctl = ftdi_ioctl, 756 .set_termios = ftdi_set_termios, 757 .break_ctl = ftdi_break_ctl, 758 .shutdown = ftdi_shutdown, 759 }; 760 761 762 #define WDR_TIMEOUT 5000 /* default urb timeout */ 763 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 764 765 /* High and low are for DTR, RTS etc etc */ 766 #define HIGH 1 767 #define LOW 0 768 769 /* number of outstanding urbs to prevent userspace DoS from happening */ 770 #define URB_UPPER_LIMIT 42 771 772 /* 773 * *************************************************************************** 774 * Utility functions 775 * *************************************************************************** 776 */ 777 778 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 779 { 780 unsigned short int divisor; 781 /* divisor shifted 3 bits to the left */ 782 int divisor3 = base / 2 / baud; 783 if ((divisor3 & 0x7) == 7) 784 divisor3++; /* round x.7/8 up to x+1 */ 785 divisor = divisor3 >> 3; 786 divisor3 &= 0x7; 787 if (divisor3 == 1) 788 divisor |= 0xc000; 789 else if (divisor3 >= 4) 790 divisor |= 0x4000; 791 else if (divisor3 != 0) 792 divisor |= 0x8000; 793 else if (divisor == 1) 794 divisor = 0; /* special case for maximum baud rate */ 795 return divisor; 796 } 797 798 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 799 { 800 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 801 } 802 803 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 804 { 805 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 806 __u32 divisor; 807 /* divisor shifted 3 bits to the left */ 808 int divisor3 = base / 2 / baud; 809 divisor = divisor3 >> 3; 810 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 811 /* Deal with special cases for highest baud rates. */ 812 if (divisor == 1) 813 divisor = 0; 814 else if (divisor == 0x4001) 815 divisor = 1; 816 return divisor; 817 } 818 819 static __u32 ftdi_232bm_baud_to_divisor(int baud) 820 { 821 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 822 } 823 824 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 825 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 826 827 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 828 unsigned int clear) 829 { 830 struct ftdi_private *priv = usb_get_serial_port_data(port); 831 char *buf; 832 unsigned urb_value; 833 int rv; 834 835 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 836 dbg("%s - DTR|RTS not being set|cleared", __func__); 837 return 0; /* no change */ 838 } 839 840 buf = kmalloc(1, GFP_NOIO); 841 if (!buf) 842 return -ENOMEM; 843 844 clear &= ~set; /* 'set' takes precedence over 'clear' */ 845 urb_value = 0; 846 if (clear & TIOCM_DTR) 847 urb_value |= FTDI_SIO_SET_DTR_LOW; 848 if (clear & TIOCM_RTS) 849 urb_value |= FTDI_SIO_SET_RTS_LOW; 850 if (set & TIOCM_DTR) 851 urb_value |= FTDI_SIO_SET_DTR_HIGH; 852 if (set & TIOCM_RTS) 853 urb_value |= FTDI_SIO_SET_RTS_HIGH; 854 rv = usb_control_msg(port->serial->dev, 855 usb_sndctrlpipe(port->serial->dev, 0), 856 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 857 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 858 urb_value, priv->interface, 859 buf, 0, WDR_TIMEOUT); 860 861 kfree(buf); 862 if (rv < 0) { 863 err("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 864 __func__, 865 (set & TIOCM_DTR) ? "HIGH" : 866 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 867 (set & TIOCM_RTS) ? "HIGH" : 868 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 869 } else { 870 dbg("%s - DTR %s, RTS %s", __func__, 871 (set & TIOCM_DTR) ? "HIGH" : 872 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 873 (set & TIOCM_RTS) ? "HIGH" : 874 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 875 /* FIXME: locking on last_dtr_rts */ 876 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 877 } 878 return rv; 879 } 880 881 882 static __u32 get_ftdi_divisor(struct tty_struct *tty, 883 struct usb_serial_port *port) 884 { /* get_ftdi_divisor */ 885 struct ftdi_private *priv = usb_get_serial_port_data(port); 886 __u32 div_value = 0; 887 int div_okay = 1; 888 int baud; 889 890 /* 891 * The logic involved in setting the baudrate can be cleanly split into 892 * 3 steps. 893 * 1. Standard baud rates are set in tty->termios->c_cflag 894 * 2. If these are not enough, you can set any speed using alt_speed as 895 * follows: 896 * - set tty->termios->c_cflag speed to B38400 897 * - set your real speed in tty->alt_speed; it gets ignored when 898 * alt_speed==0, (or) 899 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 900 * follows: 901 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 902 * this just sets alt_speed to (HI: 57600, VHI: 115200, 903 * SHI: 230400, WARP: 460800) 904 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 905 * 3. You can also set baud rate by setting custom divisor as follows 906 * - set tty->termios->c_cflag speed to B38400 907 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 908 * follows: 909 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 910 * o custom_divisor set to baud_base / your_new_baudrate 911 * ** Step 3 is done courtesy of code borrowed from serial.c 912 * I should really spend some time and separate + move this common 913 * code to serial.c, it is replicated in nearly every serial driver 914 * you see. 915 */ 916 917 /* 1. Get the baud rate from the tty settings, this observes 918 alt_speed hack */ 919 920 baud = tty_get_baud_rate(tty); 921 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 922 923 /* 2. Observe async-compatible custom_divisor hack, update baudrate 924 if needed */ 925 926 if (baud == 38400 && 927 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 928 (priv->custom_divisor)) { 929 baud = priv->baud_base / priv->custom_divisor; 930 dbg("%s - custom divisor %d sets baud rate to %d", 931 __func__, priv->custom_divisor, baud); 932 } 933 934 /* 3. Convert baudrate to device-specific divisor */ 935 936 if (!baud) 937 baud = 9600; 938 switch (priv->chip_type) { 939 case SIO: /* SIO chip */ 940 switch (baud) { 941 case 300: div_value = ftdi_sio_b300; break; 942 case 600: div_value = ftdi_sio_b600; break; 943 case 1200: div_value = ftdi_sio_b1200; break; 944 case 2400: div_value = ftdi_sio_b2400; break; 945 case 4800: div_value = ftdi_sio_b4800; break; 946 case 9600: div_value = ftdi_sio_b9600; break; 947 case 19200: div_value = ftdi_sio_b19200; break; 948 case 38400: div_value = ftdi_sio_b38400; break; 949 case 57600: div_value = ftdi_sio_b57600; break; 950 case 115200: div_value = ftdi_sio_b115200; break; 951 } /* baud */ 952 if (div_value == 0) { 953 dbg("%s - Baudrate (%d) requested is not supported", 954 __func__, baud); 955 div_value = ftdi_sio_b9600; 956 baud = 9600; 957 div_okay = 0; 958 } 959 break; 960 case FT8U232AM: /* 8U232AM chip */ 961 if (baud <= 3000000) { 962 div_value = ftdi_232am_baud_to_divisor(baud); 963 } else { 964 dbg("%s - Baud rate too high!", __func__); 965 baud = 9600; 966 div_value = ftdi_232am_baud_to_divisor(9600); 967 div_okay = 0; 968 } 969 break; 970 case FT232BM: /* FT232BM chip */ 971 case FT2232C: /* FT2232C chip */ 972 case FT232RL: 973 if (baud <= 3000000) { 974 div_value = ftdi_232bm_baud_to_divisor(baud); 975 } else { 976 dbg("%s - Baud rate too high!", __func__); 977 div_value = ftdi_232bm_baud_to_divisor(9600); 978 div_okay = 0; 979 baud = 9600; 980 } 981 break; 982 } /* priv->chip_type */ 983 984 if (div_okay) { 985 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 986 __func__, baud, (unsigned long)div_value, 987 ftdi_chip_name[priv->chip_type]); 988 } 989 990 tty_encode_baud_rate(tty, baud, baud); 991 return div_value; 992 } 993 994 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 995 { 996 struct ftdi_private *priv = usb_get_serial_port_data(port); 997 char *buf; 998 __u16 urb_value; 999 __u16 urb_index; 1000 __u32 urb_index_value; 1001 int rv; 1002 1003 buf = kmalloc(1, GFP_NOIO); 1004 if (!buf) 1005 return -ENOMEM; 1006 1007 urb_index_value = get_ftdi_divisor(tty, port); 1008 urb_value = (__u16)urb_index_value; 1009 urb_index = (__u16)(urb_index_value >> 16); 1010 if (priv->interface) { /* FT2232C */ 1011 urb_index = (__u16)((urb_index << 8) | priv->interface); 1012 } 1013 1014 rv = usb_control_msg(port->serial->dev, 1015 usb_sndctrlpipe(port->serial->dev, 0), 1016 FTDI_SIO_SET_BAUDRATE_REQUEST, 1017 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1018 urb_value, urb_index, 1019 buf, 0, WDR_SHORT_TIMEOUT); 1020 1021 kfree(buf); 1022 return rv; 1023 } 1024 1025 1026 1027 static int get_serial_info(struct usb_serial_port *port, 1028 struct serial_struct __user *retinfo) 1029 { 1030 struct ftdi_private *priv = usb_get_serial_port_data(port); 1031 struct serial_struct tmp; 1032 1033 if (!retinfo) 1034 return -EFAULT; 1035 memset(&tmp, 0, sizeof(tmp)); 1036 tmp.flags = priv->flags; 1037 tmp.baud_base = priv->baud_base; 1038 tmp.custom_divisor = priv->custom_divisor; 1039 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1040 return -EFAULT; 1041 return 0; 1042 } /* get_serial_info */ 1043 1044 1045 static int set_serial_info(struct tty_struct *tty, 1046 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1047 { /* set_serial_info */ 1048 struct ftdi_private *priv = usb_get_serial_port_data(port); 1049 struct serial_struct new_serial; 1050 struct ftdi_private old_priv; 1051 1052 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1053 return -EFAULT; 1054 old_priv = *priv; 1055 1056 /* Do error checking and permission checking */ 1057 1058 if (!capable(CAP_SYS_ADMIN)) { 1059 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1060 (priv->flags & ~ASYNC_USR_MASK))) 1061 return -EPERM; 1062 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1063 (new_serial.flags & ASYNC_USR_MASK)); 1064 priv->custom_divisor = new_serial.custom_divisor; 1065 goto check_and_exit; 1066 } 1067 1068 if ((new_serial.baud_base != priv->baud_base) && 1069 (new_serial.baud_base < 9600)) 1070 return -EINVAL; 1071 1072 /* Make the changes - these are privileged changes! */ 1073 1074 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1075 (new_serial.flags & ASYNC_FLAGS)); 1076 priv->custom_divisor = new_serial.custom_divisor; 1077 1078 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1079 1080 check_and_exit: 1081 if ((old_priv.flags & ASYNC_SPD_MASK) != 1082 (priv->flags & ASYNC_SPD_MASK)) { 1083 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1084 tty->alt_speed = 57600; 1085 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1086 tty->alt_speed = 115200; 1087 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1088 tty->alt_speed = 230400; 1089 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1090 tty->alt_speed = 460800; 1091 else 1092 tty->alt_speed = 0; 1093 } 1094 if (((old_priv.flags & ASYNC_SPD_MASK) != 1095 (priv->flags & ASYNC_SPD_MASK)) || 1096 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1097 (old_priv.custom_divisor != priv->custom_divisor))) { 1098 change_speed(tty, port); 1099 } 1100 return 0; 1101 1102 } /* set_serial_info */ 1103 1104 1105 /* Determine type of FTDI chip based on USB config and descriptor. */ 1106 static void ftdi_determine_type(struct usb_serial_port *port) 1107 { 1108 struct ftdi_private *priv = usb_get_serial_port_data(port); 1109 struct usb_serial *serial = port->serial; 1110 struct usb_device *udev = serial->dev; 1111 unsigned version; 1112 unsigned interfaces; 1113 1114 /* Assume it is not the original SIO device for now. */ 1115 priv->baud_base = 48000000 / 2; 1116 priv->write_offset = 0; 1117 1118 version = le16_to_cpu(udev->descriptor.bcdDevice); 1119 interfaces = udev->actconfig->desc.bNumInterfaces; 1120 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1121 version, interfaces); 1122 if (interfaces > 1) { 1123 int inter; 1124 1125 /* Multiple interfaces. Assume FT2232C. */ 1126 priv->chip_type = FT2232C; 1127 /* Determine interface code. */ 1128 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1129 if (inter == 0) 1130 priv->interface = PIT_SIOA; 1131 else 1132 priv->interface = PIT_SIOB; 1133 /* BM-type devices have a bug where bcdDevice gets set 1134 * to 0x200 when iSerialNumber is 0. */ 1135 if (version < 0x500) { 1136 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1137 __func__); 1138 } 1139 } else if (version < 0x200) { 1140 /* Old device. Assume its the original SIO. */ 1141 priv->chip_type = SIO; 1142 priv->baud_base = 12000000 / 16; 1143 priv->write_offset = 1; 1144 } else if (version < 0x400) { 1145 /* Assume its an FT8U232AM (or FT8U245AM) */ 1146 /* (It might be a BM because of the iSerialNumber bug, 1147 * but it will still work as an AM device.) */ 1148 priv->chip_type = FT8U232AM; 1149 } else if (version < 0x600) { 1150 /* Assume its an FT232BM (or FT245BM) */ 1151 priv->chip_type = FT232BM; 1152 } else { 1153 /* Assume its an FT232R */ 1154 priv->chip_type = FT232RL; 1155 } 1156 info("Detected %s", ftdi_chip_name[priv->chip_type]); 1157 } 1158 1159 1160 /* 1161 * *************************************************************************** 1162 * Sysfs Attribute 1163 * *************************************************************************** 1164 */ 1165 1166 static ssize_t show_latency_timer(struct device *dev, 1167 struct device_attribute *attr, char *buf) 1168 { 1169 struct usb_serial_port *port = to_usb_serial_port(dev); 1170 struct ftdi_private *priv = usb_get_serial_port_data(port); 1171 struct usb_device *udev = port->serial->dev; 1172 unsigned short latency = 0; 1173 int rv = 0; 1174 1175 1176 dbg("%s", __func__); 1177 1178 rv = usb_control_msg(udev, 1179 usb_rcvctrlpipe(udev, 0), 1180 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1181 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1182 0, priv->interface, 1183 (char *) &latency, 1, WDR_TIMEOUT); 1184 1185 if (rv < 0) { 1186 dev_err(dev, "Unable to read latency timer: %i\n", rv); 1187 return -EIO; 1188 } 1189 return sprintf(buf, "%i\n", latency); 1190 } 1191 1192 /* Write a new value of the latency timer, in units of milliseconds. */ 1193 static ssize_t store_latency_timer(struct device *dev, 1194 struct device_attribute *attr, const char *valbuf, 1195 size_t count) 1196 { 1197 struct usb_serial_port *port = to_usb_serial_port(dev); 1198 struct ftdi_private *priv = usb_get_serial_port_data(port); 1199 struct usb_device *udev = port->serial->dev; 1200 char buf[1]; 1201 int v = simple_strtoul(valbuf, NULL, 10); 1202 int rv = 0; 1203 1204 dbg("%s: setting latency timer = %i", __func__, v); 1205 1206 rv = usb_control_msg(udev, 1207 usb_sndctrlpipe(udev, 0), 1208 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1209 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1210 v, priv->interface, 1211 buf, 0, WDR_TIMEOUT); 1212 1213 if (rv < 0) { 1214 dev_err(dev, "Unable to write latency timer: %i\n", rv); 1215 return -EIO; 1216 } 1217 1218 return count; 1219 } 1220 1221 /* Write an event character directly to the FTDI register. The ASCII 1222 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1223 static ssize_t store_event_char(struct device *dev, 1224 struct device_attribute *attr, const char *valbuf, size_t count) 1225 { 1226 struct usb_serial_port *port = to_usb_serial_port(dev); 1227 struct ftdi_private *priv = usb_get_serial_port_data(port); 1228 struct usb_device *udev = port->serial->dev; 1229 char buf[1]; 1230 int v = simple_strtoul(valbuf, NULL, 10); 1231 int rv = 0; 1232 1233 dbg("%s: setting event char = %i", __func__, v); 1234 1235 rv = usb_control_msg(udev, 1236 usb_sndctrlpipe(udev, 0), 1237 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1238 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1239 v, priv->interface, 1240 buf, 0, WDR_TIMEOUT); 1241 1242 if (rv < 0) { 1243 dbg("Unable to write event character: %i", rv); 1244 return -EIO; 1245 } 1246 1247 return count; 1248 } 1249 1250 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1251 store_latency_timer); 1252 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1253 1254 static int create_sysfs_attrs(struct usb_serial_port *port) 1255 { 1256 struct ftdi_private *priv = usb_get_serial_port_data(port); 1257 int retval = 0; 1258 1259 dbg("%s", __func__); 1260 1261 /* XXX I've no idea if the original SIO supports the event_char 1262 * sysfs parameter, so I'm playing it safe. */ 1263 if (priv->chip_type != SIO) { 1264 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1265 retval = device_create_file(&port->dev, &dev_attr_event_char); 1266 if ((!retval) && 1267 (priv->chip_type == FT232BM || 1268 priv->chip_type == FT2232C || 1269 priv->chip_type == FT232RL)) { 1270 retval = device_create_file(&port->dev, 1271 &dev_attr_latency_timer); 1272 } 1273 } 1274 return retval; 1275 } 1276 1277 static void remove_sysfs_attrs(struct usb_serial_port *port) 1278 { 1279 struct ftdi_private *priv = usb_get_serial_port_data(port); 1280 1281 dbg("%s", __func__); 1282 1283 /* XXX see create_sysfs_attrs */ 1284 if (priv->chip_type != SIO) { 1285 device_remove_file(&port->dev, &dev_attr_event_char); 1286 if (priv->chip_type == FT232BM || 1287 priv->chip_type == FT2232C || 1288 priv->chip_type == FT232RL) { 1289 device_remove_file(&port->dev, &dev_attr_latency_timer); 1290 } 1291 } 1292 1293 } 1294 1295 /* 1296 * *************************************************************************** 1297 * FTDI driver specific functions 1298 * *************************************************************************** 1299 */ 1300 1301 /* Probe function to check for special devices */ 1302 static int ftdi_sio_probe(struct usb_serial *serial, 1303 const struct usb_device_id *id) 1304 { 1305 struct ftdi_sio_quirk *quirk = 1306 (struct ftdi_sio_quirk *)id->driver_info; 1307 1308 if (quirk && quirk->probe) { 1309 int ret = quirk->probe(serial); 1310 if (ret != 0) 1311 return ret; 1312 } 1313 1314 usb_set_serial_data(serial, (void *)id->driver_info); 1315 1316 return 0; 1317 } 1318 1319 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1320 { 1321 struct ftdi_private *priv; 1322 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1323 1324 1325 dbg("%s", __func__); 1326 1327 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1328 if (!priv) { 1329 err("%s- kmalloc(%Zd) failed.", __func__, 1330 sizeof(struct ftdi_private)); 1331 return -ENOMEM; 1332 } 1333 1334 spin_lock_init(&priv->rx_lock); 1335 spin_lock_init(&priv->tx_lock); 1336 init_waitqueue_head(&priv->delta_msr_wait); 1337 /* This will push the characters through immediately rather 1338 than queue a task to deliver them */ 1339 priv->flags = ASYNC_LOW_LATENCY; 1340 1341 if (quirk && quirk->port_probe) 1342 quirk->port_probe(priv); 1343 1344 /* Increase the size of read buffers */ 1345 kfree(port->bulk_in_buffer); 1346 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1347 if (!port->bulk_in_buffer) { 1348 kfree(priv); 1349 return -ENOMEM; 1350 } 1351 if (port->read_urb) { 1352 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1353 port->read_urb->transfer_buffer_length = BUFSZ; 1354 } 1355 1356 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1357 priv->port = port; 1358 1359 /* Free port's existing write urb and transfer buffer. */ 1360 if (port->write_urb) { 1361 usb_free_urb(port->write_urb); 1362 port->write_urb = NULL; 1363 } 1364 kfree(port->bulk_out_buffer); 1365 port->bulk_out_buffer = NULL; 1366 1367 usb_set_serial_port_data(port, priv); 1368 1369 ftdi_determine_type(port); 1370 create_sysfs_attrs(port); 1371 return 0; 1372 } 1373 1374 /* Setup for the USB-UIRT device, which requires hardwired 1375 * baudrate (38400 gets mapped to 312500) */ 1376 /* Called from usbserial:serial_probe */ 1377 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1378 { 1379 dbg("%s", __func__); 1380 1381 priv->flags |= ASYNC_SPD_CUST; 1382 priv->custom_divisor = 77; 1383 priv->force_baud = 38400; 1384 } /* ftdi_USB_UIRT_setup */ 1385 1386 /* Setup for the HE-TIRA1 device, which requires hardwired 1387 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1388 1389 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1390 { 1391 dbg("%s", __func__); 1392 1393 priv->flags |= ASYNC_SPD_CUST; 1394 priv->custom_divisor = 240; 1395 priv->force_baud = 38400; 1396 priv->force_rtscts = 1; 1397 } /* ftdi_HE_TIRA1_setup */ 1398 1399 /* 1400 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1401 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1402 * userspace using openocd. 1403 */ 1404 static int ftdi_jtag_probe(struct usb_serial *serial) 1405 { 1406 struct usb_device *udev = serial->dev; 1407 struct usb_interface *interface = serial->interface; 1408 1409 dbg("%s", __func__); 1410 1411 if (interface == udev->actconfig->interface[0]) { 1412 info("Ignoring serial port reserved for JTAG"); 1413 return -ENODEV; 1414 } 1415 1416 return 0; 1417 } 1418 1419 /* 1420 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1421 * We have to correct it if we want to read from it. 1422 */ 1423 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1424 { 1425 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1426 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1427 1428 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1429 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1430 info("Fixing invalid wMaxPacketSize on read pipe"); 1431 } 1432 1433 return 0; 1434 } 1435 1436 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect 1437 * it is called when the usb device is disconnected 1438 * 1439 * usbserial:usb_serial_disconnect 1440 * calls __serial_close for each open of the port 1441 * shutdown is called then (ie ftdi_shutdown) 1442 */ 1443 static void ftdi_shutdown(struct usb_serial *serial) 1444 { 1445 dbg("%s", __func__); 1446 } 1447 1448 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1449 { 1450 struct ftdi_private *priv = usb_get_serial_port_data(port); 1451 1452 dbg("%s", __func__); 1453 1454 remove_sysfs_attrs(port); 1455 1456 /* all open ports are closed at this point 1457 * (by usbserial.c:__serial_close, which calls ftdi_close) 1458 */ 1459 1460 if (priv) { 1461 usb_set_serial_port_data(port, NULL); 1462 kfree(priv); 1463 } 1464 1465 return 0; 1466 } 1467 1468 static int ftdi_open(struct tty_struct *tty, 1469 struct usb_serial_port *port, struct file *filp) 1470 { /* ftdi_open */ 1471 struct usb_device *dev = port->serial->dev; 1472 struct ftdi_private *priv = usb_get_serial_port_data(port); 1473 unsigned long flags; 1474 1475 int result = 0; 1476 char buf[1]; /* Needed for the usb_control_msg I think */ 1477 1478 dbg("%s", __func__); 1479 1480 spin_lock_irqsave(&priv->tx_lock, flags); 1481 priv->tx_bytes = 0; 1482 spin_unlock_irqrestore(&priv->tx_lock, flags); 1483 spin_lock_irqsave(&priv->rx_lock, flags); 1484 priv->rx_bytes = 0; 1485 spin_unlock_irqrestore(&priv->rx_lock, flags); 1486 1487 if (tty) 1488 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1489 1490 /* No error checking for this (will get errors later anyway) */ 1491 /* See ftdi_sio.h for description of what is reset */ 1492 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1493 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1494 FTDI_SIO_RESET_SIO, 1495 priv->interface, buf, 0, WDR_TIMEOUT); 1496 1497 /* Termios defaults are set by usb_serial_init. We don't change 1498 port->tty->termios - this would loose speed settings, etc. 1499 This is same behaviour as serial.c/rs_open() - Kuba */ 1500 1501 /* ftdi_set_termios will send usb control messages */ 1502 if (tty) 1503 ftdi_set_termios(tty, port, tty->termios); 1504 1505 /* FIXME: Flow control might be enabled, so it should be checked - 1506 we have no control of defaults! */ 1507 /* Turn on RTS and DTR since we are not flow controlling by default */ 1508 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1509 1510 /* Not throttled */ 1511 spin_lock_irqsave(&priv->rx_lock, flags); 1512 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1513 spin_unlock_irqrestore(&priv->rx_lock, flags); 1514 1515 /* Start reading from the device */ 1516 priv->rx_processed = 0; 1517 usb_fill_bulk_urb(port->read_urb, dev, 1518 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1519 port->read_urb->transfer_buffer, 1520 port->read_urb->transfer_buffer_length, 1521 ftdi_read_bulk_callback, port); 1522 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1523 if (result) 1524 err("%s - failed submitting read urb, error %d", 1525 __func__, result); 1526 1527 1528 return result; 1529 } /* ftdi_open */ 1530 1531 1532 1533 /* 1534 * usbserial:__serial_close only calls ftdi_close if the point is open 1535 * 1536 * This only gets called when it is the last close 1537 * 1538 * 1539 */ 1540 1541 static void ftdi_close(struct tty_struct *tty, 1542 struct usb_serial_port *port, struct file *filp) 1543 { /* ftdi_close */ 1544 unsigned int c_cflag = tty->termios->c_cflag; 1545 struct ftdi_private *priv = usb_get_serial_port_data(port); 1546 char buf[1]; 1547 1548 dbg("%s", __func__); 1549 1550 mutex_lock(&port->serial->disc_mutex); 1551 if (c_cflag & HUPCL && !port->serial->disconnected) { 1552 /* Disable flow control */ 1553 if (usb_control_msg(port->serial->dev, 1554 usb_sndctrlpipe(port->serial->dev, 0), 1555 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1556 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1557 0, priv->interface, buf, 0, 1558 WDR_TIMEOUT) < 0) { 1559 err("error from flowcontrol urb"); 1560 } 1561 1562 /* drop RTS and DTR */ 1563 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1564 } /* Note change no line if hupcl is off */ 1565 mutex_unlock(&port->serial->disc_mutex); 1566 1567 /* cancel any scheduled reading */ 1568 cancel_delayed_work(&priv->rx_work); 1569 flush_scheduled_work(); 1570 1571 /* shutdown our bulk read */ 1572 usb_kill_urb(port->read_urb); 1573 } /* ftdi_close */ 1574 1575 1576 1577 /* The SIO requires the first byte to have: 1578 * B0 1 1579 * B1 0 1580 * B2..7 length of message excluding byte 0 1581 * 1582 * The new devices do not require this byte 1583 */ 1584 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1585 const unsigned char *buf, int count) 1586 { /* ftdi_write */ 1587 struct ftdi_private *priv = usb_get_serial_port_data(port); 1588 struct urb *urb; 1589 unsigned char *buffer; 1590 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1591 int status; 1592 int transfer_size; 1593 unsigned long flags; 1594 1595 dbg("%s port %d, %d bytes", __func__, port->number, count); 1596 1597 if (count == 0) { 1598 dbg("write request of 0 bytes"); 1599 return 0; 1600 } 1601 spin_lock_irqsave(&priv->tx_lock, flags); 1602 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1603 spin_unlock_irqrestore(&priv->tx_lock, flags); 1604 dbg("%s - write limit hit\n", __func__); 1605 return 0; 1606 } 1607 priv->tx_outstanding_urbs++; 1608 spin_unlock_irqrestore(&priv->tx_lock, flags); 1609 1610 data_offset = priv->write_offset; 1611 dbg("data_offset set to %d", data_offset); 1612 1613 /* Determine total transfer size */ 1614 transfer_size = count; 1615 if (data_offset > 0) { 1616 /* Original sio needs control bytes too... */ 1617 transfer_size += (data_offset * 1618 ((count + (PKTSZ - 1 - data_offset)) / 1619 (PKTSZ - data_offset))); 1620 } 1621 1622 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1623 if (!buffer) { 1624 err("%s ran out of kernel memory for urb ...", __func__); 1625 count = -ENOMEM; 1626 goto error_no_buffer; 1627 } 1628 1629 urb = usb_alloc_urb(0, GFP_ATOMIC); 1630 if (!urb) { 1631 err("%s - no more free urbs", __func__); 1632 count = -ENOMEM; 1633 goto error_no_urb; 1634 } 1635 1636 /* Copy data */ 1637 if (data_offset > 0) { 1638 /* Original sio requires control byte at start of 1639 each packet. */ 1640 int user_pktsz = PKTSZ - data_offset; 1641 int todo = count; 1642 unsigned char *first_byte = buffer; 1643 const unsigned char *current_position = buf; 1644 1645 while (todo > 0) { 1646 if (user_pktsz > todo) 1647 user_pktsz = todo; 1648 /* Write the control byte at the front of the packet*/ 1649 *first_byte = 1 | ((user_pktsz) << 2); 1650 /* Copy data for packet */ 1651 memcpy(first_byte + data_offset, 1652 current_position, user_pktsz); 1653 first_byte += user_pktsz + data_offset; 1654 current_position += user_pktsz; 1655 todo -= user_pktsz; 1656 } 1657 } else { 1658 /* No control byte required. */ 1659 /* Copy in the data to send */ 1660 memcpy(buffer, buf, count); 1661 } 1662 1663 usb_serial_debug_data(debug, &port->dev, __func__, 1664 transfer_size, buffer); 1665 1666 /* fill the buffer and send it */ 1667 usb_fill_bulk_urb(urb, port->serial->dev, 1668 usb_sndbulkpipe(port->serial->dev, 1669 port->bulk_out_endpointAddress), 1670 buffer, transfer_size, 1671 ftdi_write_bulk_callback, port); 1672 1673 status = usb_submit_urb(urb, GFP_ATOMIC); 1674 if (status) { 1675 err("%s - failed submitting write urb, error %d", 1676 __func__, status); 1677 count = status; 1678 goto error; 1679 } else { 1680 spin_lock_irqsave(&priv->tx_lock, flags); 1681 priv->tx_outstanding_bytes += count; 1682 priv->tx_bytes += count; 1683 spin_unlock_irqrestore(&priv->tx_lock, flags); 1684 } 1685 1686 /* we are done with this urb, so let the host driver 1687 * really free it when it is finished with it */ 1688 usb_free_urb(urb); 1689 1690 dbg("%s write returning: %d", __func__, count); 1691 return count; 1692 error: 1693 usb_free_urb(urb); 1694 error_no_urb: 1695 kfree(buffer); 1696 error_no_buffer: 1697 spin_lock_irqsave(&priv->tx_lock, flags); 1698 priv->tx_outstanding_urbs--; 1699 spin_unlock_irqrestore(&priv->tx_lock, flags); 1700 return count; 1701 } /* ftdi_write */ 1702 1703 1704 /* This function may get called when the device is closed */ 1705 1706 static void ftdi_write_bulk_callback(struct urb *urb) 1707 { 1708 unsigned long flags; 1709 struct usb_serial_port *port = urb->context; 1710 struct ftdi_private *priv; 1711 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1712 unsigned long countback; 1713 int status = urb->status; 1714 1715 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1716 kfree(urb->transfer_buffer); 1717 1718 dbg("%s - port %d", __func__, port->number); 1719 1720 if (status) { 1721 dbg("nonzero write bulk status received: %d", status); 1722 return; 1723 } 1724 1725 priv = usb_get_serial_port_data(port); 1726 if (!priv) { 1727 dbg("%s - bad port private data pointer - exiting", __func__); 1728 return; 1729 } 1730 /* account for transferred data */ 1731 countback = urb->actual_length; 1732 data_offset = priv->write_offset; 1733 if (data_offset > 0) { 1734 /* Subtract the control bytes */ 1735 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ)); 1736 } 1737 spin_lock_irqsave(&priv->tx_lock, flags); 1738 --priv->tx_outstanding_urbs; 1739 priv->tx_outstanding_bytes -= countback; 1740 spin_unlock_irqrestore(&priv->tx_lock, flags); 1741 1742 usb_serial_port_softint(port); 1743 } /* ftdi_write_bulk_callback */ 1744 1745 1746 static int ftdi_write_room(struct tty_struct *tty) 1747 { 1748 struct usb_serial_port *port = tty->driver_data; 1749 struct ftdi_private *priv = usb_get_serial_port_data(port); 1750 int room; 1751 unsigned long flags; 1752 1753 dbg("%s - port %d", __func__, port->number); 1754 1755 spin_lock_irqsave(&priv->tx_lock, flags); 1756 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1757 /* 1758 * We really can take anything the user throws at us 1759 * but let's pick a nice big number to tell the tty 1760 * layer that we have lots of free space 1761 */ 1762 room = 2048; 1763 } else { 1764 room = 0; 1765 } 1766 spin_unlock_irqrestore(&priv->tx_lock, flags); 1767 return room; 1768 } 1769 1770 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1771 { 1772 struct usb_serial_port *port = tty->driver_data; 1773 struct ftdi_private *priv = usb_get_serial_port_data(port); 1774 int buffered; 1775 unsigned long flags; 1776 1777 dbg("%s - port %d", __func__, port->number); 1778 1779 spin_lock_irqsave(&priv->tx_lock, flags); 1780 buffered = (int)priv->tx_outstanding_bytes; 1781 spin_unlock_irqrestore(&priv->tx_lock, flags); 1782 if (buffered < 0) { 1783 err("%s outstanding tx bytes is negative!", __func__); 1784 buffered = 0; 1785 } 1786 return buffered; 1787 } 1788 1789 static void ftdi_read_bulk_callback(struct urb *urb) 1790 { 1791 struct usb_serial_port *port = urb->context; 1792 struct tty_struct *tty; 1793 struct ftdi_private *priv; 1794 unsigned long countread; 1795 unsigned long flags; 1796 int status = urb->status; 1797 1798 if (urb->number_of_packets > 0) { 1799 err("%s transfer_buffer_length %d actual_length %d number of packets %d", 1800 __func__, 1801 urb->transfer_buffer_length, 1802 urb->actual_length, urb->number_of_packets); 1803 err("%s transfer_flags %x ", __func__, urb->transfer_flags); 1804 } 1805 1806 dbg("%s - port %d", __func__, port->number); 1807 1808 if (port->port.count <= 0) 1809 return; 1810 1811 tty = port->port.tty; 1812 if (!tty) { 1813 dbg("%s - bad tty pointer - exiting", __func__); 1814 return; 1815 } 1816 1817 priv = usb_get_serial_port_data(port); 1818 if (!priv) { 1819 dbg("%s - bad port private data pointer - exiting", __func__); 1820 return; 1821 } 1822 1823 if (urb != port->read_urb) 1824 err("%s - Not my urb!", __func__); 1825 1826 if (status) { 1827 /* This will happen at close every time so it is a dbg not an 1828 err */ 1829 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 1830 return; 1831 } 1832 1833 /* count data bytes, but not status bytes */ 1834 countread = urb->actual_length; 1835 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ); 1836 spin_lock_irqsave(&priv->rx_lock, flags); 1837 priv->rx_bytes += countread; 1838 spin_unlock_irqrestore(&priv->rx_lock, flags); 1839 1840 ftdi_process_read(&priv->rx_work.work); 1841 1842 } /* ftdi_read_bulk_callback */ 1843 1844 1845 static void ftdi_process_read(struct work_struct *work) 1846 { /* ftdi_process_read */ 1847 struct ftdi_private *priv = 1848 container_of(work, struct ftdi_private, rx_work.work); 1849 struct usb_serial_port *port = priv->port; 1850 struct urb *urb; 1851 struct tty_struct *tty; 1852 char error_flag; 1853 unsigned char *data; 1854 1855 int i; 1856 int result; 1857 int need_flip; 1858 int packet_offset; 1859 unsigned long flags; 1860 1861 dbg("%s - port %d", __func__, port->number); 1862 1863 if (port->port.count <= 0) 1864 return; 1865 1866 tty = port->port.tty; 1867 if (!tty) { 1868 dbg("%s - bad tty pointer - exiting", __func__); 1869 return; 1870 } 1871 1872 priv = usb_get_serial_port_data(port); 1873 if (!priv) { 1874 dbg("%s - bad port private data pointer - exiting", __func__); 1875 return; 1876 } 1877 1878 urb = port->read_urb; 1879 if (!urb) { 1880 dbg("%s - bad read_urb pointer - exiting", __func__); 1881 return; 1882 } 1883 1884 data = urb->transfer_buffer; 1885 1886 if (priv->rx_processed) { 1887 dbg("%s - already processed: %d bytes, %d remain", __func__, 1888 priv->rx_processed, 1889 urb->actual_length - priv->rx_processed); 1890 } else { 1891 /* The first two bytes of every read packet are status */ 1892 if (urb->actual_length > 2) 1893 usb_serial_debug_data(debug, &port->dev, __func__, 1894 urb->actual_length, data); 1895 else 1896 dbg("Status only: %03oo %03oo", data[0], data[1]); 1897 } 1898 1899 1900 /* TO DO -- check for hung up line and handle appropriately: */ 1901 /* send hangup */ 1902 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 1903 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 1904 1905 need_flip = 0; 1906 for (packet_offset = priv->rx_processed; 1907 packet_offset < urb->actual_length; packet_offset += PKTSZ) { 1908 int length; 1909 1910 /* Compare new line status to the old one, signal if different/ 1911 N.B. packet may be processed more than once, but differences 1912 are only processed once. */ 1913 if (priv != NULL) { 1914 char new_status = data[packet_offset + 0] & 1915 FTDI_STATUS_B0_MASK; 1916 if (new_status != priv->prev_status) { 1917 priv->diff_status |= 1918 new_status ^ priv->prev_status; 1919 wake_up_interruptible(&priv->delta_msr_wait); 1920 priv->prev_status = new_status; 1921 } 1922 } 1923 1924 length = min(PKTSZ, urb->actual_length-packet_offset)-2; 1925 if (length < 0) { 1926 err("%s - bad packet length: %d", __func__, length+2); 1927 length = 0; 1928 } 1929 1930 if (priv->rx_flags & THROTTLED) { 1931 dbg("%s - throttled", __func__); 1932 break; 1933 } 1934 if (tty_buffer_request_room(tty, length) < length) { 1935 /* break out & wait for throttling/unthrottling to 1936 happen */ 1937 dbg("%s - receive room low", __func__); 1938 break; 1939 } 1940 1941 /* Handle errors and break */ 1942 error_flag = TTY_NORMAL; 1943 /* Although the device uses a bitmask and hence can have 1944 multiple errors on a packet - the order here sets the 1945 priority the error is returned to the tty layer */ 1946 1947 if (data[packet_offset+1] & FTDI_RS_OE) { 1948 error_flag = TTY_OVERRUN; 1949 dbg("OVERRRUN error"); 1950 } 1951 if (data[packet_offset+1] & FTDI_RS_BI) { 1952 error_flag = TTY_BREAK; 1953 dbg("BREAK received"); 1954 } 1955 if (data[packet_offset+1] & FTDI_RS_PE) { 1956 error_flag = TTY_PARITY; 1957 dbg("PARITY error"); 1958 } 1959 if (data[packet_offset+1] & FTDI_RS_FE) { 1960 error_flag = TTY_FRAME; 1961 dbg("FRAMING error"); 1962 } 1963 if (length > 0) { 1964 for (i = 2; i < length+2; i++) { 1965 /* Note that the error flag is duplicated for 1966 every character received since we don't know 1967 which character it applied to */ 1968 tty_insert_flip_char(tty, 1969 data[packet_offset + i], error_flag); 1970 } 1971 need_flip = 1; 1972 } 1973 1974 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 1975 /* if a parity error is detected you get status packets forever 1976 until a character is sent without a parity error. 1977 This doesn't work well since the application receives a 1978 never ending stream of bad data - even though new data 1979 hasn't been sent. Therefore I (bill) have taken this out. 1980 However - this might make sense for framing errors and so on 1981 so I am leaving the code in for now. 1982 */ 1983 else { 1984 if (error_flag != TTY_NORMAL) { 1985 dbg("error_flag is not normal"); 1986 /* In this case it is just status - if that is 1987 an error send a bad character */ 1988 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 1989 tty_flip_buffer_push(tty); 1990 tty_insert_flip_char(tty, 0xff, error_flag); 1991 need_flip = 1; 1992 } 1993 } 1994 #endif 1995 } /* "for(packet_offset=0..." */ 1996 1997 /* Low latency */ 1998 if (need_flip) 1999 tty_flip_buffer_push(tty); 2000 2001 if (packet_offset < urb->actual_length) { 2002 /* not completely processed - record progress */ 2003 priv->rx_processed = packet_offset; 2004 dbg("%s - incomplete, %d bytes processed, %d remain", 2005 __func__, packet_offset, 2006 urb->actual_length - packet_offset); 2007 /* check if we were throttled while processing */ 2008 spin_lock_irqsave(&priv->rx_lock, flags); 2009 if (priv->rx_flags & THROTTLED) { 2010 priv->rx_flags |= ACTUALLY_THROTTLED; 2011 spin_unlock_irqrestore(&priv->rx_lock, flags); 2012 dbg("%s - deferring remainder until unthrottled", 2013 __func__); 2014 return; 2015 } 2016 spin_unlock_irqrestore(&priv->rx_lock, flags); 2017 /* if the port is closed stop trying to read */ 2018 if (port->port.count > 0) 2019 /* delay processing of remainder */ 2020 schedule_delayed_work(&priv->rx_work, 1); 2021 else 2022 dbg("%s - port is closed", __func__); 2023 return; 2024 } 2025 2026 /* urb is completely processed */ 2027 priv->rx_processed = 0; 2028 2029 /* if the port is closed stop trying to read */ 2030 if (port->port.count > 0) { 2031 /* Continue trying to always read */ 2032 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2033 usb_rcvbulkpipe(port->serial->dev, 2034 port->bulk_in_endpointAddress), 2035 port->read_urb->transfer_buffer, 2036 port->read_urb->transfer_buffer_length, 2037 ftdi_read_bulk_callback, port); 2038 2039 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2040 if (result) 2041 err("%s - failed resubmitting read urb, error %d", 2042 __func__, result); 2043 } 2044 } /* ftdi_process_read */ 2045 2046 2047 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2048 { 2049 struct usb_serial_port *port = tty->driver_data; 2050 struct ftdi_private *priv = usb_get_serial_port_data(port); 2051 __u16 urb_value = 0; 2052 char buf[1]; 2053 2054 /* break_state = -1 to turn on break, and 0 to turn off break */ 2055 /* see drivers/char/tty_io.c to see it used */ 2056 /* last_set_data_urb_value NEVER has the break bit set in it */ 2057 2058 if (break_state) 2059 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2060 else 2061 urb_value = priv->last_set_data_urb_value; 2062 2063 if (usb_control_msg(port->serial->dev, 2064 usb_sndctrlpipe(port->serial->dev, 0), 2065 FTDI_SIO_SET_DATA_REQUEST, 2066 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2067 urb_value , priv->interface, 2068 buf, 0, WDR_TIMEOUT) < 0) { 2069 err("%s FAILED to enable/disable break state (state was %d)", 2070 __func__, break_state); 2071 } 2072 2073 dbg("%s break state is %d - urb is %d", __func__, 2074 break_state, urb_value); 2075 2076 } 2077 2078 2079 /* old_termios contains the original termios settings and tty->termios contains 2080 * the new setting to be used 2081 * WARNING: set_termios calls this with old_termios in kernel space 2082 */ 2083 2084 static void ftdi_set_termios(struct tty_struct *tty, 2085 struct usb_serial_port *port, struct ktermios *old_termios) 2086 { /* ftdi_termios */ 2087 struct usb_device *dev = port->serial->dev; 2088 struct ftdi_private *priv = usb_get_serial_port_data(port); 2089 struct ktermios *termios = tty->termios; 2090 unsigned int cflag = termios->c_cflag; 2091 __u16 urb_value; /* will hold the new flags */ 2092 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2093 2094 /* Added for xon/xoff support */ 2095 unsigned int iflag = termios->c_iflag; 2096 unsigned char vstop; 2097 unsigned char vstart; 2098 2099 dbg("%s", __func__); 2100 2101 /* Force baud rate if this device requires it, unless it is set to 2102 B0. */ 2103 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2104 dbg("%s: forcing baud rate for this device", __func__); 2105 tty_encode_baud_rate(tty, priv->force_baud, 2106 priv->force_baud); 2107 } 2108 2109 /* Force RTS-CTS if this device requires it. */ 2110 if (priv->force_rtscts) { 2111 dbg("%s: forcing rtscts for this device", __func__); 2112 termios->c_cflag |= CRTSCTS; 2113 } 2114 2115 cflag = termios->c_cflag; 2116 2117 /* FIXME -For this cut I don't care if the line is really changing or 2118 not - so just do the change regardless - should be able to 2119 compare old_termios and tty->termios */ 2120 /* NOTE These routines can get interrupted by 2121 ftdi_sio_read_bulk_callback - need to examine what this means - 2122 don't see any problems yet */ 2123 2124 /* Set number of data bits, parity, stop bits */ 2125 2126 termios->c_cflag &= ~CMSPAR; 2127 2128 urb_value = 0; 2129 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2130 FTDI_SIO_SET_DATA_STOP_BITS_1); 2131 urb_value |= (cflag & PARENB ? 2132 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2133 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2134 FTDI_SIO_SET_DATA_PARITY_NONE); 2135 if (cflag & CSIZE) { 2136 switch (cflag & CSIZE) { 2137 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2138 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2139 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2140 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2141 default: 2142 err("CSIZE was set but not CS5-CS8"); 2143 } 2144 } 2145 2146 /* This is needed by the break command since it uses the same command 2147 - but is or'ed with this value */ 2148 priv->last_set_data_urb_value = urb_value; 2149 2150 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2151 FTDI_SIO_SET_DATA_REQUEST, 2152 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2153 urb_value , priv->interface, 2154 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2155 err("%s FAILED to set databits/stopbits/parity", __func__); 2156 } 2157 2158 /* Now do the baudrate */ 2159 if ((cflag & CBAUD) == B0) { 2160 /* Disable flow control */ 2161 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2162 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2163 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2164 0, priv->interface, 2165 buf, 0, WDR_TIMEOUT) < 0) { 2166 err("%s error from disable flowcontrol urb", __func__); 2167 } 2168 /* Drop RTS and DTR */ 2169 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2170 } else { 2171 /* set the baudrate determined before */ 2172 if (change_speed(tty, port)) 2173 err("%s urb failed to set baudrate", __func__); 2174 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2175 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2176 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2177 } 2178 2179 /* Set flow control */ 2180 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2181 if (cflag & CRTSCTS) { 2182 dbg("%s Setting to CRTSCTS flow control", __func__); 2183 if (usb_control_msg(dev, 2184 usb_sndctrlpipe(dev, 0), 2185 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2186 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2187 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2188 buf, 0, WDR_TIMEOUT) < 0) { 2189 err("urb failed to set to rts/cts flow control"); 2190 } 2191 2192 } else { 2193 /* 2194 * Xon/Xoff code 2195 * 2196 * Check the IXOFF status in the iflag component of the 2197 * termios structure. If IXOFF is not set, the pre-xon/xoff 2198 * code is executed. 2199 */ 2200 if (iflag & IXOFF) { 2201 dbg("%s request to enable xonxoff iflag=%04x", 2202 __func__, iflag); 2203 /* Try to enable the XON/XOFF on the ftdi_sio 2204 * Set the vstart and vstop -- could have been done up 2205 * above where a lot of other dereferencing is done but 2206 * that would be very inefficient as vstart and vstop 2207 * are not always needed. 2208 */ 2209 vstart = termios->c_cc[VSTART]; 2210 vstop = termios->c_cc[VSTOP]; 2211 urb_value = (vstop << 8) | (vstart); 2212 2213 if (usb_control_msg(dev, 2214 usb_sndctrlpipe(dev, 0), 2215 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2216 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2217 urb_value , (FTDI_SIO_XON_XOFF_HS 2218 | priv->interface), 2219 buf, 0, WDR_TIMEOUT) < 0) { 2220 err("urb failed to set to xon/xoff flow control"); 2221 } 2222 } else { 2223 /* else clause to only run if cflag ! CRTSCTS and iflag 2224 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2225 * stack - not by device */ 2226 dbg("%s Turning off hardware flow control", __func__); 2227 if (usb_control_msg(dev, 2228 usb_sndctrlpipe(dev, 0), 2229 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2230 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2231 0, priv->interface, 2232 buf, 0, WDR_TIMEOUT) < 0) { 2233 err("urb failed to clear flow control"); 2234 } 2235 } 2236 2237 } 2238 return; 2239 } 2240 2241 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2242 { 2243 struct usb_serial_port *port = tty->driver_data; 2244 struct ftdi_private *priv = usb_get_serial_port_data(port); 2245 unsigned char buf[2]; 2246 int ret; 2247 2248 dbg("%s TIOCMGET", __func__); 2249 switch (priv->chip_type) { 2250 case SIO: 2251 /* Request the status from the device */ 2252 ret = usb_control_msg(port->serial->dev, 2253 usb_rcvctrlpipe(port->serial->dev, 0), 2254 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2255 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2256 0, 0, 2257 buf, 1, WDR_TIMEOUT); 2258 if (ret < 0) { 2259 err("%s Could not get modem status of device - err: %d", __func__, 2260 ret); 2261 return ret; 2262 } 2263 break; 2264 case FT8U232AM: 2265 case FT232BM: 2266 case FT2232C: 2267 case FT232RL: 2268 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2269 value) - in the same format as the data returned from the in 2270 point */ 2271 ret = usb_control_msg(port->serial->dev, 2272 usb_rcvctrlpipe(port->serial->dev, 0), 2273 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2274 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2275 0, priv->interface, 2276 buf, 2, WDR_TIMEOUT); 2277 if (ret < 0) { 2278 err("%s Could not get modem status of device - err: %d", __func__, 2279 ret); 2280 return ret; 2281 } 2282 break; 2283 default: 2284 return -EFAULT; 2285 break; 2286 } 2287 2288 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2289 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2290 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2291 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2292 priv->last_dtr_rts; 2293 } 2294 2295 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2296 unsigned int set, unsigned int clear) 2297 { 2298 struct usb_serial_port *port = tty->driver_data; 2299 dbg("%s TIOCMSET", __func__); 2300 return update_mctrl(port, set, clear); 2301 } 2302 2303 2304 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2305 unsigned int cmd, unsigned long arg) 2306 { 2307 struct usb_serial_port *port = tty->driver_data; 2308 struct ftdi_private *priv = usb_get_serial_port_data(port); 2309 2310 dbg("%s cmd 0x%04x", __func__, cmd); 2311 2312 /* Based on code from acm.c and others */ 2313 switch (cmd) { 2314 2315 case TIOCGSERIAL: /* gets serial port data */ 2316 return get_serial_info(port, 2317 (struct serial_struct __user *) arg); 2318 2319 case TIOCSSERIAL: /* sets serial port data */ 2320 return set_serial_info(tty, port, 2321 (struct serial_struct __user *) arg); 2322 2323 /* 2324 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2325 * - mask passed in arg for lines of interest 2326 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2327 * Caller should use TIOCGICOUNT to see which one it was. 2328 * 2329 * This code is borrowed from linux/drivers/char/serial.c 2330 */ 2331 case TIOCMIWAIT: 2332 while (priv != NULL) { 2333 interruptible_sleep_on(&priv->delta_msr_wait); 2334 /* see if a signal did it */ 2335 if (signal_pending(current)) 2336 return -ERESTARTSYS; 2337 else { 2338 char diff = priv->diff_status; 2339 2340 if (diff == 0) 2341 return -EIO; /* no change => error */ 2342 2343 /* Consume all events */ 2344 priv->diff_status = 0; 2345 2346 /* Return 0 if caller wanted to know about 2347 these bits */ 2348 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2349 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2350 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2351 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2352 return 0; 2353 } 2354 /* 2355 * Otherwise caller can't care less about what 2356 * happened,and so we continue to wait for more 2357 * events. 2358 */ 2359 } 2360 } 2361 return 0; 2362 default: 2363 break; 2364 } 2365 /* This is not necessarily an error - turns out the higher layers 2366 * will do some ioctls themselves (see comment above) 2367 */ 2368 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2369 return -ENOIOCTLCMD; 2370 } 2371 2372 static void ftdi_throttle(struct tty_struct *tty) 2373 { 2374 struct usb_serial_port *port = tty->driver_data; 2375 struct ftdi_private *priv = usb_get_serial_port_data(port); 2376 unsigned long flags; 2377 2378 dbg("%s - port %d", __func__, port->number); 2379 2380 spin_lock_irqsave(&priv->rx_lock, flags); 2381 priv->rx_flags |= THROTTLED; 2382 spin_unlock_irqrestore(&priv->rx_lock, flags); 2383 } 2384 2385 2386 static void ftdi_unthrottle(struct tty_struct *tty) 2387 { 2388 struct usb_serial_port *port = tty->driver_data; 2389 struct ftdi_private *priv = usb_get_serial_port_data(port); 2390 int actually_throttled; 2391 unsigned long flags; 2392 2393 dbg("%s - port %d", __func__, port->number); 2394 2395 spin_lock_irqsave(&priv->rx_lock, flags); 2396 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2397 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2398 spin_unlock_irqrestore(&priv->rx_lock, flags); 2399 2400 if (actually_throttled) 2401 schedule_delayed_work(&priv->rx_work, 0); 2402 } 2403 2404 static int __init ftdi_init(void) 2405 { 2406 int retval; 2407 2408 dbg("%s", __func__); 2409 if (vendor > 0 && product > 0) { 2410 /* Add user specified VID/PID to reserved element of table. */ 2411 int i; 2412 for (i = 0; id_table_combined[i].idVendor; i++) 2413 ; 2414 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2415 id_table_combined[i].idVendor = vendor; 2416 id_table_combined[i].idProduct = product; 2417 } 2418 retval = usb_serial_register(&ftdi_sio_device); 2419 if (retval) 2420 goto failed_sio_register; 2421 retval = usb_register(&ftdi_driver); 2422 if (retval) 2423 goto failed_usb_register; 2424 2425 info(DRIVER_VERSION ":" DRIVER_DESC); 2426 return 0; 2427 failed_usb_register: 2428 usb_serial_deregister(&ftdi_sio_device); 2429 failed_sio_register: 2430 return retval; 2431 } 2432 2433 2434 static void __exit ftdi_exit(void) 2435 { 2436 2437 dbg("%s", __func__); 2438 2439 usb_deregister(&ftdi_driver); 2440 usb_serial_deregister(&ftdi_sio_device); 2441 2442 } 2443 2444 2445 module_init(ftdi_init); 2446 module_exit(ftdi_exit); 2447 2448 MODULE_AUTHOR(DRIVER_AUTHOR); 2449 MODULE_DESCRIPTION(DRIVER_DESC); 2450 MODULE_LICENSE("GPL"); 2451 2452 module_param(debug, bool, S_IRUGO | S_IWUSR); 2453 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2454 module_param(vendor, ushort, 0); 2455 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2456 __MODULE_STRING(FTDI_VID)")"); 2457 module_param(product, ushort, 0); 2458 MODULE_PARM_DESC(vendor, "User specified product ID"); 2459 2460