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(FTDI_VID, FTDI_OCEANIC_PID) }, 582 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, 583 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, 584 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, 585 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, 586 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, 587 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, 588 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, 589 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, 590 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) }, 591 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) }, 592 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) }, 593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) }, 594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) }, 595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) }, 596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) }, 597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) }, 598 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, 599 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, 600 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) }, 601 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) }, 602 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) }, 603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) }, 604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) }, 605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) }, 606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) }, 607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) }, 608 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) }, 609 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) }, 610 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, 611 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, 612 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, 613 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, 614 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, 615 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, 616 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) }, 617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) }, 618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) }, 619 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) }, 620 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) }, 621 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) }, 622 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) }, 623 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) }, 624 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) }, 625 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) }, 626 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, 627 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, 628 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, 629 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, 630 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, 631 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) }, 632 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) }, 633 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) }, 634 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) }, 635 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) }, 636 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) }, 637 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) }, 638 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) }, 639 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) }, 640 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, 641 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, 642 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) }, 643 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, 644 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, 645 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, 646 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), 647 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 648 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), 649 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 650 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), 651 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 652 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID), 653 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 654 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID), 655 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 656 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, 657 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, 658 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) }, 659 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) }, 660 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) }, 661 { }, /* Optional parameter entry */ 662 { } /* Terminating entry */ 663 }; 664 665 MODULE_DEVICE_TABLE(usb, id_table_combined); 666 667 static struct usb_driver ftdi_driver = { 668 .name = "ftdi_sio", 669 .probe = usb_serial_probe, 670 .disconnect = usb_serial_disconnect, 671 .id_table = id_table_combined, 672 .no_dynamic_id = 1, 673 }; 674 675 static const char *ftdi_chip_name[] = { 676 [SIO] = "SIO", /* the serial part of FT8U100AX */ 677 [FT8U232AM] = "FT8U232AM", 678 [FT232BM] = "FT232BM", 679 [FT2232C] = "FT2232C", 680 [FT232RL] = "FT232RL", 681 }; 682 683 684 /* Constants for read urb and write urb */ 685 #define BUFSZ 512 686 #define PKTSZ 64 687 688 /* rx_flags */ 689 #define THROTTLED 0x01 690 #define ACTUALLY_THROTTLED 0x02 691 692 /* Used for TIOCMIWAIT */ 693 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 694 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 695 /* End TIOCMIWAIT */ 696 697 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ 698 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) 699 700 /* function prototypes for a FTDI serial converter */ 701 static int ftdi_sio_probe(struct usb_serial *serial, 702 const struct usb_device_id *id); 703 static void ftdi_shutdown(struct usb_serial *serial); 704 static int ftdi_sio_port_probe(struct usb_serial_port *port); 705 static int ftdi_sio_port_remove(struct usb_serial_port *port); 706 static int ftdi_open(struct tty_struct *tty, 707 struct usb_serial_port *port, struct file *filp); 708 static void ftdi_close(struct tty_struct *tty, 709 struct usb_serial_port *port, struct file *filp); 710 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 711 const unsigned char *buf, int count); 712 static int ftdi_write_room(struct tty_struct *tty); 713 static int ftdi_chars_in_buffer(struct tty_struct *tty); 714 static void ftdi_write_bulk_callback(struct urb *urb); 715 static void ftdi_read_bulk_callback(struct urb *urb); 716 static void ftdi_process_read(struct work_struct *work); 717 static void ftdi_set_termios(struct tty_struct *tty, 718 struct usb_serial_port *port, struct ktermios *old); 719 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); 720 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 721 unsigned int set, unsigned int clear); 722 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 723 unsigned int cmd, unsigned long arg); 724 static void ftdi_break_ctl(struct tty_struct *tty, int break_state); 725 static void ftdi_throttle(struct tty_struct *tty); 726 static void ftdi_unthrottle(struct tty_struct *tty); 727 728 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); 729 static unsigned short int ftdi_232am_baud_to_divisor(int baud); 730 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base); 731 static __u32 ftdi_232bm_baud_to_divisor(int baud); 732 733 static struct usb_serial_driver ftdi_sio_device = { 734 .driver = { 735 .owner = THIS_MODULE, 736 .name = "ftdi_sio", 737 }, 738 .description = "FTDI USB Serial Device", 739 .usb_driver = &ftdi_driver , 740 .id_table = id_table_combined, 741 .num_ports = 1, 742 .probe = ftdi_sio_probe, 743 .port_probe = ftdi_sio_port_probe, 744 .port_remove = ftdi_sio_port_remove, 745 .open = ftdi_open, 746 .close = ftdi_close, 747 .throttle = ftdi_throttle, 748 .unthrottle = ftdi_unthrottle, 749 .write = ftdi_write, 750 .write_room = ftdi_write_room, 751 .chars_in_buffer = ftdi_chars_in_buffer, 752 .read_bulk_callback = ftdi_read_bulk_callback, 753 .write_bulk_callback = ftdi_write_bulk_callback, 754 .tiocmget = ftdi_tiocmget, 755 .tiocmset = ftdi_tiocmset, 756 .ioctl = ftdi_ioctl, 757 .set_termios = ftdi_set_termios, 758 .break_ctl = ftdi_break_ctl, 759 .shutdown = ftdi_shutdown, 760 }; 761 762 763 #define WDR_TIMEOUT 5000 /* default urb timeout */ 764 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ 765 766 /* High and low are for DTR, RTS etc etc */ 767 #define HIGH 1 768 #define LOW 0 769 770 /* number of outstanding urbs to prevent userspace DoS from happening */ 771 #define URB_UPPER_LIMIT 42 772 773 /* 774 * *************************************************************************** 775 * Utility functions 776 * *************************************************************************** 777 */ 778 779 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 780 { 781 unsigned short int divisor; 782 /* divisor shifted 3 bits to the left */ 783 int divisor3 = base / 2 / baud; 784 if ((divisor3 & 0x7) == 7) 785 divisor3++; /* round x.7/8 up to x+1 */ 786 divisor = divisor3 >> 3; 787 divisor3 &= 0x7; 788 if (divisor3 == 1) 789 divisor |= 0xc000; 790 else if (divisor3 >= 4) 791 divisor |= 0x4000; 792 else if (divisor3 != 0) 793 divisor |= 0x8000; 794 else if (divisor == 1) 795 divisor = 0; /* special case for maximum baud rate */ 796 return divisor; 797 } 798 799 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 800 { 801 return ftdi_232am_baud_base_to_divisor(baud, 48000000); 802 } 803 804 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 805 { 806 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 807 __u32 divisor; 808 /* divisor shifted 3 bits to the left */ 809 int divisor3 = base / 2 / baud; 810 divisor = divisor3 >> 3; 811 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 812 /* Deal with special cases for highest baud rates. */ 813 if (divisor == 1) 814 divisor = 0; 815 else if (divisor == 0x4001) 816 divisor = 1; 817 return divisor; 818 } 819 820 static __u32 ftdi_232bm_baud_to_divisor(int baud) 821 { 822 return ftdi_232bm_baud_base_to_divisor(baud, 48000000); 823 } 824 825 #define set_mctrl(port, set) update_mctrl((port), (set), 0) 826 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) 827 828 static int update_mctrl(struct usb_serial_port *port, unsigned int set, 829 unsigned int clear) 830 { 831 struct ftdi_private *priv = usb_get_serial_port_data(port); 832 char *buf; 833 unsigned urb_value; 834 int rv; 835 836 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { 837 dbg("%s - DTR|RTS not being set|cleared", __func__); 838 return 0; /* no change */ 839 } 840 841 buf = kmalloc(1, GFP_NOIO); 842 if (!buf) 843 return -ENOMEM; 844 845 clear &= ~set; /* 'set' takes precedence over 'clear' */ 846 urb_value = 0; 847 if (clear & TIOCM_DTR) 848 urb_value |= FTDI_SIO_SET_DTR_LOW; 849 if (clear & TIOCM_RTS) 850 urb_value |= FTDI_SIO_SET_RTS_LOW; 851 if (set & TIOCM_DTR) 852 urb_value |= FTDI_SIO_SET_DTR_HIGH; 853 if (set & TIOCM_RTS) 854 urb_value |= FTDI_SIO_SET_RTS_HIGH; 855 rv = usb_control_msg(port->serial->dev, 856 usb_sndctrlpipe(port->serial->dev, 0), 857 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 858 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 859 urb_value, priv->interface, 860 buf, 0, WDR_TIMEOUT); 861 862 kfree(buf); 863 if (rv < 0) { 864 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", 865 __func__, 866 (set & TIOCM_DTR) ? "HIGH" : 867 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 868 (set & TIOCM_RTS) ? "HIGH" : 869 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 870 } else { 871 dbg("%s - DTR %s, RTS %s", __func__, 872 (set & TIOCM_DTR) ? "HIGH" : 873 (clear & TIOCM_DTR) ? "LOW" : "unchanged", 874 (set & TIOCM_RTS) ? "HIGH" : 875 (clear & TIOCM_RTS) ? "LOW" : "unchanged"); 876 /* FIXME: locking on last_dtr_rts */ 877 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; 878 } 879 return rv; 880 } 881 882 883 static __u32 get_ftdi_divisor(struct tty_struct *tty, 884 struct usb_serial_port *port) 885 { /* get_ftdi_divisor */ 886 struct ftdi_private *priv = usb_get_serial_port_data(port); 887 __u32 div_value = 0; 888 int div_okay = 1; 889 int baud; 890 891 /* 892 * The logic involved in setting the baudrate can be cleanly split into 893 * 3 steps. 894 * 1. Standard baud rates are set in tty->termios->c_cflag 895 * 2. If these are not enough, you can set any speed using alt_speed as 896 * follows: 897 * - set tty->termios->c_cflag speed to B38400 898 * - set your real speed in tty->alt_speed; it gets ignored when 899 * alt_speed==0, (or) 900 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 901 * follows: 902 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], 903 * this just sets alt_speed to (HI: 57600, VHI: 115200, 904 * SHI: 230400, WARP: 460800) 905 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 906 * 3. You can also set baud rate by setting custom divisor as follows 907 * - set tty->termios->c_cflag speed to B38400 908 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as 909 * follows: 910 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 911 * o custom_divisor set to baud_base / your_new_baudrate 912 * ** Step 3 is done courtesy of code borrowed from serial.c 913 * I should really spend some time and separate + move this common 914 * code to serial.c, it is replicated in nearly every serial driver 915 * you see. 916 */ 917 918 /* 1. Get the baud rate from the tty settings, this observes 919 alt_speed hack */ 920 921 baud = tty_get_baud_rate(tty); 922 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); 923 924 /* 2. Observe async-compatible custom_divisor hack, update baudrate 925 if needed */ 926 927 if (baud == 38400 && 928 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 929 (priv->custom_divisor)) { 930 baud = priv->baud_base / priv->custom_divisor; 931 dbg("%s - custom divisor %d sets baud rate to %d", 932 __func__, priv->custom_divisor, baud); 933 } 934 935 /* 3. Convert baudrate to device-specific divisor */ 936 937 if (!baud) 938 baud = 9600; 939 switch (priv->chip_type) { 940 case SIO: /* SIO chip */ 941 switch (baud) { 942 case 300: div_value = ftdi_sio_b300; break; 943 case 600: div_value = ftdi_sio_b600; break; 944 case 1200: div_value = ftdi_sio_b1200; break; 945 case 2400: div_value = ftdi_sio_b2400; break; 946 case 4800: div_value = ftdi_sio_b4800; break; 947 case 9600: div_value = ftdi_sio_b9600; break; 948 case 19200: div_value = ftdi_sio_b19200; break; 949 case 38400: div_value = ftdi_sio_b38400; break; 950 case 57600: div_value = ftdi_sio_b57600; break; 951 case 115200: div_value = ftdi_sio_b115200; break; 952 } /* baud */ 953 if (div_value == 0) { 954 dbg("%s - Baudrate (%d) requested is not supported", 955 __func__, baud); 956 div_value = ftdi_sio_b9600; 957 baud = 9600; 958 div_okay = 0; 959 } 960 break; 961 case FT8U232AM: /* 8U232AM chip */ 962 if (baud <= 3000000) { 963 div_value = ftdi_232am_baud_to_divisor(baud); 964 } else { 965 dbg("%s - Baud rate too high!", __func__); 966 baud = 9600; 967 div_value = ftdi_232am_baud_to_divisor(9600); 968 div_okay = 0; 969 } 970 break; 971 case FT232BM: /* FT232BM chip */ 972 case FT2232C: /* FT2232C chip */ 973 case FT232RL: 974 if (baud <= 3000000) { 975 div_value = ftdi_232bm_baud_to_divisor(baud); 976 } else { 977 dbg("%s - Baud rate too high!", __func__); 978 div_value = ftdi_232bm_baud_to_divisor(9600); 979 div_okay = 0; 980 baud = 9600; 981 } 982 break; 983 } /* priv->chip_type */ 984 985 if (div_okay) { 986 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 987 __func__, baud, (unsigned long)div_value, 988 ftdi_chip_name[priv->chip_type]); 989 } 990 991 tty_encode_baud_rate(tty, baud, baud); 992 return div_value; 993 } 994 995 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) 996 { 997 struct ftdi_private *priv = usb_get_serial_port_data(port); 998 char *buf; 999 __u16 urb_value; 1000 __u16 urb_index; 1001 __u32 urb_index_value; 1002 int rv; 1003 1004 buf = kmalloc(1, GFP_NOIO); 1005 if (!buf) 1006 return -ENOMEM; 1007 1008 urb_index_value = get_ftdi_divisor(tty, port); 1009 urb_value = (__u16)urb_index_value; 1010 urb_index = (__u16)(urb_index_value >> 16); 1011 if (priv->interface) { /* FT2232C */ 1012 urb_index = (__u16)((urb_index << 8) | priv->interface); 1013 } 1014 1015 rv = usb_control_msg(port->serial->dev, 1016 usb_sndctrlpipe(port->serial->dev, 0), 1017 FTDI_SIO_SET_BAUDRATE_REQUEST, 1018 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1019 urb_value, urb_index, 1020 buf, 0, WDR_SHORT_TIMEOUT); 1021 1022 kfree(buf); 1023 return rv; 1024 } 1025 1026 1027 1028 static int get_serial_info(struct usb_serial_port *port, 1029 struct serial_struct __user *retinfo) 1030 { 1031 struct ftdi_private *priv = usb_get_serial_port_data(port); 1032 struct serial_struct tmp; 1033 1034 if (!retinfo) 1035 return -EFAULT; 1036 memset(&tmp, 0, sizeof(tmp)); 1037 tmp.flags = priv->flags; 1038 tmp.baud_base = priv->baud_base; 1039 tmp.custom_divisor = priv->custom_divisor; 1040 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1041 return -EFAULT; 1042 return 0; 1043 } /* get_serial_info */ 1044 1045 1046 static int set_serial_info(struct tty_struct *tty, 1047 struct usb_serial_port *port, struct serial_struct __user *newinfo) 1048 { /* set_serial_info */ 1049 struct ftdi_private *priv = usb_get_serial_port_data(port); 1050 struct serial_struct new_serial; 1051 struct ftdi_private old_priv; 1052 1053 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1054 return -EFAULT; 1055 old_priv = *priv; 1056 1057 /* Do error checking and permission checking */ 1058 1059 if (!capable(CAP_SYS_ADMIN)) { 1060 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1061 (priv->flags & ~ASYNC_USR_MASK))) 1062 return -EPERM; 1063 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1064 (new_serial.flags & ASYNC_USR_MASK)); 1065 priv->custom_divisor = new_serial.custom_divisor; 1066 goto check_and_exit; 1067 } 1068 1069 if ((new_serial.baud_base != priv->baud_base) && 1070 (new_serial.baud_base < 9600)) 1071 return -EINVAL; 1072 1073 /* Make the changes - these are privileged changes! */ 1074 1075 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1076 (new_serial.flags & ASYNC_FLAGS)); 1077 priv->custom_divisor = new_serial.custom_divisor; 1078 1079 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1080 1081 check_and_exit: 1082 if ((old_priv.flags & ASYNC_SPD_MASK) != 1083 (priv->flags & ASYNC_SPD_MASK)) { 1084 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1085 tty->alt_speed = 57600; 1086 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1087 tty->alt_speed = 115200; 1088 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1089 tty->alt_speed = 230400; 1090 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1091 tty->alt_speed = 460800; 1092 else 1093 tty->alt_speed = 0; 1094 } 1095 if (((old_priv.flags & ASYNC_SPD_MASK) != 1096 (priv->flags & ASYNC_SPD_MASK)) || 1097 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1098 (old_priv.custom_divisor != priv->custom_divisor))) { 1099 change_speed(tty, port); 1100 } 1101 return 0; 1102 1103 } /* set_serial_info */ 1104 1105 1106 /* Determine type of FTDI chip based on USB config and descriptor. */ 1107 static void ftdi_determine_type(struct usb_serial_port *port) 1108 { 1109 struct ftdi_private *priv = usb_get_serial_port_data(port); 1110 struct usb_serial *serial = port->serial; 1111 struct usb_device *udev = serial->dev; 1112 unsigned version; 1113 unsigned interfaces; 1114 1115 /* Assume it is not the original SIO device for now. */ 1116 priv->baud_base = 48000000 / 2; 1117 priv->write_offset = 0; 1118 1119 version = le16_to_cpu(udev->descriptor.bcdDevice); 1120 interfaces = udev->actconfig->desc.bNumInterfaces; 1121 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, 1122 version, interfaces); 1123 if (interfaces > 1) { 1124 int inter; 1125 1126 /* Multiple interfaces. Assume FT2232C. */ 1127 priv->chip_type = FT2232C; 1128 /* Determine interface code. */ 1129 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1130 if (inter == 0) 1131 priv->interface = PIT_SIOA; 1132 else 1133 priv->interface = PIT_SIOB; 1134 /* BM-type devices have a bug where bcdDevice gets set 1135 * to 0x200 when iSerialNumber is 0. */ 1136 if (version < 0x500) { 1137 dbg("%s: something fishy - bcdDevice too low for multi-interface device", 1138 __func__); 1139 } 1140 } else if (version < 0x200) { 1141 /* Old device. Assume its the original SIO. */ 1142 priv->chip_type = SIO; 1143 priv->baud_base = 12000000 / 16; 1144 priv->write_offset = 1; 1145 } else if (version < 0x400) { 1146 /* Assume its an FT8U232AM (or FT8U245AM) */ 1147 /* (It might be a BM because of the iSerialNumber bug, 1148 * but it will still work as an AM device.) */ 1149 priv->chip_type = FT8U232AM; 1150 } else if (version < 0x600) { 1151 /* Assume its an FT232BM (or FT245BM) */ 1152 priv->chip_type = FT232BM; 1153 } else { 1154 /* Assume its an FT232R */ 1155 priv->chip_type = FT232RL; 1156 } 1157 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); 1158 } 1159 1160 1161 /* 1162 * *************************************************************************** 1163 * Sysfs Attribute 1164 * *************************************************************************** 1165 */ 1166 1167 static ssize_t show_latency_timer(struct device *dev, 1168 struct device_attribute *attr, char *buf) 1169 { 1170 struct usb_serial_port *port = to_usb_serial_port(dev); 1171 struct ftdi_private *priv = usb_get_serial_port_data(port); 1172 struct usb_device *udev = port->serial->dev; 1173 unsigned short latency = 0; 1174 int rv = 0; 1175 1176 1177 dbg("%s", __func__); 1178 1179 rv = usb_control_msg(udev, 1180 usb_rcvctrlpipe(udev, 0), 1181 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1182 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1183 0, priv->interface, 1184 (char *) &latency, 1, WDR_TIMEOUT); 1185 1186 if (rv < 0) { 1187 dev_err(dev, "Unable to read latency timer: %i\n", rv); 1188 return -EIO; 1189 } 1190 return sprintf(buf, "%i\n", latency); 1191 } 1192 1193 /* Write a new value of the latency timer, in units of milliseconds. */ 1194 static ssize_t store_latency_timer(struct device *dev, 1195 struct device_attribute *attr, const char *valbuf, 1196 size_t count) 1197 { 1198 struct usb_serial_port *port = to_usb_serial_port(dev); 1199 struct ftdi_private *priv = usb_get_serial_port_data(port); 1200 struct usb_device *udev = port->serial->dev; 1201 char buf[1]; 1202 int v = simple_strtoul(valbuf, NULL, 10); 1203 int rv = 0; 1204 1205 dbg("%s: setting latency timer = %i", __func__, v); 1206 1207 rv = usb_control_msg(udev, 1208 usb_sndctrlpipe(udev, 0), 1209 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1210 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1211 v, priv->interface, 1212 buf, 0, WDR_TIMEOUT); 1213 1214 if (rv < 0) { 1215 dev_err(dev, "Unable to write latency timer: %i\n", rv); 1216 return -EIO; 1217 } 1218 1219 return count; 1220 } 1221 1222 /* Write an event character directly to the FTDI register. The ASCII 1223 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1224 static ssize_t store_event_char(struct device *dev, 1225 struct device_attribute *attr, const char *valbuf, size_t count) 1226 { 1227 struct usb_serial_port *port = to_usb_serial_port(dev); 1228 struct ftdi_private *priv = usb_get_serial_port_data(port); 1229 struct usb_device *udev = port->serial->dev; 1230 char buf[1]; 1231 int v = simple_strtoul(valbuf, NULL, 10); 1232 int rv = 0; 1233 1234 dbg("%s: setting event char = %i", __func__, v); 1235 1236 rv = usb_control_msg(udev, 1237 usb_sndctrlpipe(udev, 0), 1238 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1239 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1240 v, priv->interface, 1241 buf, 0, WDR_TIMEOUT); 1242 1243 if (rv < 0) { 1244 dbg("Unable to write event character: %i", rv); 1245 return -EIO; 1246 } 1247 1248 return count; 1249 } 1250 1251 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, 1252 store_latency_timer); 1253 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1254 1255 static int create_sysfs_attrs(struct usb_serial_port *port) 1256 { 1257 struct ftdi_private *priv = usb_get_serial_port_data(port); 1258 int retval = 0; 1259 1260 dbg("%s", __func__); 1261 1262 /* XXX I've no idea if the original SIO supports the event_char 1263 * sysfs parameter, so I'm playing it safe. */ 1264 if (priv->chip_type != SIO) { 1265 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1266 retval = device_create_file(&port->dev, &dev_attr_event_char); 1267 if ((!retval) && 1268 (priv->chip_type == FT232BM || 1269 priv->chip_type == FT2232C || 1270 priv->chip_type == FT232RL)) { 1271 retval = device_create_file(&port->dev, 1272 &dev_attr_latency_timer); 1273 } 1274 } 1275 return retval; 1276 } 1277 1278 static void remove_sysfs_attrs(struct usb_serial_port *port) 1279 { 1280 struct ftdi_private *priv = usb_get_serial_port_data(port); 1281 1282 dbg("%s", __func__); 1283 1284 /* XXX see create_sysfs_attrs */ 1285 if (priv->chip_type != SIO) { 1286 device_remove_file(&port->dev, &dev_attr_event_char); 1287 if (priv->chip_type == FT232BM || 1288 priv->chip_type == FT2232C || 1289 priv->chip_type == FT232RL) { 1290 device_remove_file(&port->dev, &dev_attr_latency_timer); 1291 } 1292 } 1293 1294 } 1295 1296 /* 1297 * *************************************************************************** 1298 * FTDI driver specific functions 1299 * *************************************************************************** 1300 */ 1301 1302 /* Probe function to check for special devices */ 1303 static int ftdi_sio_probe(struct usb_serial *serial, 1304 const struct usb_device_id *id) 1305 { 1306 struct ftdi_sio_quirk *quirk = 1307 (struct ftdi_sio_quirk *)id->driver_info; 1308 1309 if (quirk && quirk->probe) { 1310 int ret = quirk->probe(serial); 1311 if (ret != 0) 1312 return ret; 1313 } 1314 1315 usb_set_serial_data(serial, (void *)id->driver_info); 1316 1317 return 0; 1318 } 1319 1320 static int ftdi_sio_port_probe(struct usb_serial_port *port) 1321 { 1322 struct ftdi_private *priv; 1323 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); 1324 1325 1326 dbg("%s", __func__); 1327 1328 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1329 if (!priv) { 1330 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, 1331 sizeof(struct ftdi_private)); 1332 return -ENOMEM; 1333 } 1334 1335 spin_lock_init(&priv->rx_lock); 1336 spin_lock_init(&priv->tx_lock); 1337 init_waitqueue_head(&priv->delta_msr_wait); 1338 /* This will push the characters through immediately rather 1339 than queue a task to deliver them */ 1340 priv->flags = ASYNC_LOW_LATENCY; 1341 1342 if (quirk && quirk->port_probe) 1343 quirk->port_probe(priv); 1344 1345 /* Increase the size of read buffers */ 1346 kfree(port->bulk_in_buffer); 1347 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); 1348 if (!port->bulk_in_buffer) { 1349 kfree(priv); 1350 return -ENOMEM; 1351 } 1352 if (port->read_urb) { 1353 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1354 port->read_urb->transfer_buffer_length = BUFSZ; 1355 } 1356 1357 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); 1358 priv->port = port; 1359 1360 /* Free port's existing write urb and transfer buffer. */ 1361 if (port->write_urb) { 1362 usb_free_urb(port->write_urb); 1363 port->write_urb = NULL; 1364 } 1365 kfree(port->bulk_out_buffer); 1366 port->bulk_out_buffer = NULL; 1367 1368 usb_set_serial_port_data(port, priv); 1369 1370 ftdi_determine_type(port); 1371 create_sysfs_attrs(port); 1372 return 0; 1373 } 1374 1375 /* Setup for the USB-UIRT device, which requires hardwired 1376 * baudrate (38400 gets mapped to 312500) */ 1377 /* Called from usbserial:serial_probe */ 1378 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) 1379 { 1380 dbg("%s", __func__); 1381 1382 priv->flags |= ASYNC_SPD_CUST; 1383 priv->custom_divisor = 77; 1384 priv->force_baud = 38400; 1385 } /* ftdi_USB_UIRT_setup */ 1386 1387 /* Setup for the HE-TIRA1 device, which requires hardwired 1388 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ 1389 1390 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) 1391 { 1392 dbg("%s", __func__); 1393 1394 priv->flags |= ASYNC_SPD_CUST; 1395 priv->custom_divisor = 240; 1396 priv->force_baud = 38400; 1397 priv->force_rtscts = 1; 1398 } /* ftdi_HE_TIRA1_setup */ 1399 1400 /* 1401 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko 1402 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from 1403 * userspace using openocd. 1404 */ 1405 static int ftdi_jtag_probe(struct usb_serial *serial) 1406 { 1407 struct usb_device *udev = serial->dev; 1408 struct usb_interface *interface = serial->interface; 1409 1410 dbg("%s", __func__); 1411 1412 if (interface == udev->actconfig->interface[0]) { 1413 dev_info(&udev->dev, 1414 "Ignoring serial port reserved for JTAG\n"); 1415 return -ENODEV; 1416 } 1417 1418 return 0; 1419 } 1420 1421 /* 1422 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. 1423 * We have to correct it if we want to read from it. 1424 */ 1425 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) 1426 { 1427 struct usb_host_endpoint *ep = serial->dev->ep_in[1]; 1428 struct usb_endpoint_descriptor *ep_desc = &ep->desc; 1429 1430 if (ep->enabled && ep_desc->wMaxPacketSize == 0) { 1431 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); 1432 dev_info(&serial->dev->dev, 1433 "Fixing invalid wMaxPacketSize on read pipe\n"); 1434 } 1435 1436 return 0; 1437 } 1438 1439 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect 1440 * it is called when the usb device is disconnected 1441 * 1442 * usbserial:usb_serial_disconnect 1443 * calls __serial_close for each open of the port 1444 * shutdown is called then (ie ftdi_shutdown) 1445 */ 1446 static void ftdi_shutdown(struct usb_serial *serial) 1447 { 1448 dbg("%s", __func__); 1449 } 1450 1451 static int ftdi_sio_port_remove(struct usb_serial_port *port) 1452 { 1453 struct ftdi_private *priv = usb_get_serial_port_data(port); 1454 1455 dbg("%s", __func__); 1456 1457 remove_sysfs_attrs(port); 1458 1459 /* all open ports are closed at this point 1460 * (by usbserial.c:__serial_close, which calls ftdi_close) 1461 */ 1462 1463 if (priv) { 1464 usb_set_serial_port_data(port, NULL); 1465 kfree(priv); 1466 } 1467 1468 return 0; 1469 } 1470 1471 static int ftdi_open(struct tty_struct *tty, 1472 struct usb_serial_port *port, struct file *filp) 1473 { /* ftdi_open */ 1474 struct usb_device *dev = port->serial->dev; 1475 struct ftdi_private *priv = usb_get_serial_port_data(port); 1476 unsigned long flags; 1477 1478 int result = 0; 1479 char buf[1]; /* Needed for the usb_control_msg I think */ 1480 1481 dbg("%s", __func__); 1482 1483 spin_lock_irqsave(&priv->tx_lock, flags); 1484 priv->tx_bytes = 0; 1485 spin_unlock_irqrestore(&priv->tx_lock, flags); 1486 spin_lock_irqsave(&priv->rx_lock, flags); 1487 priv->rx_bytes = 0; 1488 spin_unlock_irqrestore(&priv->rx_lock, flags); 1489 1490 if (tty) 1491 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1492 1493 /* No error checking for this (will get errors later anyway) */ 1494 /* See ftdi_sio.h for description of what is reset */ 1495 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1496 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1497 FTDI_SIO_RESET_SIO, 1498 priv->interface, buf, 0, WDR_TIMEOUT); 1499 1500 /* Termios defaults are set by usb_serial_init. We don't change 1501 port->tty->termios - this would loose speed settings, etc. 1502 This is same behaviour as serial.c/rs_open() - Kuba */ 1503 1504 /* ftdi_set_termios will send usb control messages */ 1505 if (tty) 1506 ftdi_set_termios(tty, port, tty->termios); 1507 1508 /* FIXME: Flow control might be enabled, so it should be checked - 1509 we have no control of defaults! */ 1510 /* Turn on RTS and DTR since we are not flow controlling by default */ 1511 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1512 1513 /* Not throttled */ 1514 spin_lock_irqsave(&priv->rx_lock, flags); 1515 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1516 spin_unlock_irqrestore(&priv->rx_lock, flags); 1517 1518 /* Start reading from the device */ 1519 priv->rx_processed = 0; 1520 usb_fill_bulk_urb(port->read_urb, dev, 1521 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1522 port->read_urb->transfer_buffer, 1523 port->read_urb->transfer_buffer_length, 1524 ftdi_read_bulk_callback, port); 1525 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1526 if (result) 1527 dev_err(&port->dev, 1528 "%s - failed submitting read urb, error %d\n", 1529 __func__, result); 1530 1531 1532 return result; 1533 } /* ftdi_open */ 1534 1535 1536 1537 /* 1538 * usbserial:__serial_close only calls ftdi_close if the point is open 1539 * 1540 * This only gets called when it is the last close 1541 * 1542 * 1543 */ 1544 1545 static void ftdi_close(struct tty_struct *tty, 1546 struct usb_serial_port *port, struct file *filp) 1547 { /* ftdi_close */ 1548 unsigned int c_cflag = tty->termios->c_cflag; 1549 struct ftdi_private *priv = usb_get_serial_port_data(port); 1550 char buf[1]; 1551 1552 dbg("%s", __func__); 1553 1554 mutex_lock(&port->serial->disc_mutex); 1555 if (c_cflag & HUPCL && !port->serial->disconnected) { 1556 /* Disable flow control */ 1557 if (usb_control_msg(port->serial->dev, 1558 usb_sndctrlpipe(port->serial->dev, 0), 1559 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1560 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1561 0, priv->interface, buf, 0, 1562 WDR_TIMEOUT) < 0) { 1563 dev_err(&port->dev, "error from flowcontrol urb\n"); 1564 } 1565 1566 /* drop RTS and DTR */ 1567 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 1568 } /* Note change no line if hupcl is off */ 1569 mutex_unlock(&port->serial->disc_mutex); 1570 1571 /* cancel any scheduled reading */ 1572 cancel_delayed_work(&priv->rx_work); 1573 flush_scheduled_work(); 1574 1575 /* shutdown our bulk read */ 1576 usb_kill_urb(port->read_urb); 1577 } /* ftdi_close */ 1578 1579 1580 1581 /* The SIO requires the first byte to have: 1582 * B0 1 1583 * B1 0 1584 * B2..7 length of message excluding byte 0 1585 * 1586 * The new devices do not require this byte 1587 */ 1588 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, 1589 const unsigned char *buf, int count) 1590 { /* ftdi_write */ 1591 struct ftdi_private *priv = usb_get_serial_port_data(port); 1592 struct urb *urb; 1593 unsigned char *buffer; 1594 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1595 int status; 1596 int transfer_size; 1597 unsigned long flags; 1598 1599 dbg("%s port %d, %d bytes", __func__, port->number, count); 1600 1601 if (count == 0) { 1602 dbg("write request of 0 bytes"); 1603 return 0; 1604 } 1605 spin_lock_irqsave(&priv->tx_lock, flags); 1606 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { 1607 spin_unlock_irqrestore(&priv->tx_lock, flags); 1608 dbg("%s - write limit hit\n", __func__); 1609 return 0; 1610 } 1611 priv->tx_outstanding_urbs++; 1612 spin_unlock_irqrestore(&priv->tx_lock, flags); 1613 1614 data_offset = priv->write_offset; 1615 dbg("data_offset set to %d", data_offset); 1616 1617 /* Determine total transfer size */ 1618 transfer_size = count; 1619 if (data_offset > 0) { 1620 /* Original sio needs control bytes too... */ 1621 transfer_size += (data_offset * 1622 ((count + (PKTSZ - 1 - data_offset)) / 1623 (PKTSZ - data_offset))); 1624 } 1625 1626 buffer = kmalloc(transfer_size, GFP_ATOMIC); 1627 if (!buffer) { 1628 dev_err(&port->dev, 1629 "%s ran out of kernel memory for urb ...\n", __func__); 1630 count = -ENOMEM; 1631 goto error_no_buffer; 1632 } 1633 1634 urb = usb_alloc_urb(0, GFP_ATOMIC); 1635 if (!urb) { 1636 dev_err(&port->dev, "%s - no more free urbs\n", __func__); 1637 count = -ENOMEM; 1638 goto error_no_urb; 1639 } 1640 1641 /* Copy data */ 1642 if (data_offset > 0) { 1643 /* Original sio requires control byte at start of 1644 each packet. */ 1645 int user_pktsz = PKTSZ - data_offset; 1646 int todo = count; 1647 unsigned char *first_byte = buffer; 1648 const unsigned char *current_position = buf; 1649 1650 while (todo > 0) { 1651 if (user_pktsz > todo) 1652 user_pktsz = todo; 1653 /* Write the control byte at the front of the packet*/ 1654 *first_byte = 1 | ((user_pktsz) << 2); 1655 /* Copy data for packet */ 1656 memcpy(first_byte + data_offset, 1657 current_position, user_pktsz); 1658 first_byte += user_pktsz + data_offset; 1659 current_position += user_pktsz; 1660 todo -= user_pktsz; 1661 } 1662 } else { 1663 /* No control byte required. */ 1664 /* Copy in the data to send */ 1665 memcpy(buffer, buf, count); 1666 } 1667 1668 usb_serial_debug_data(debug, &port->dev, __func__, 1669 transfer_size, buffer); 1670 1671 /* fill the buffer and send it */ 1672 usb_fill_bulk_urb(urb, port->serial->dev, 1673 usb_sndbulkpipe(port->serial->dev, 1674 port->bulk_out_endpointAddress), 1675 buffer, transfer_size, 1676 ftdi_write_bulk_callback, port); 1677 1678 status = usb_submit_urb(urb, GFP_ATOMIC); 1679 if (status) { 1680 dev_err(&port->dev, 1681 "%s - failed submitting write urb, error %d\n", 1682 __func__, status); 1683 count = status; 1684 goto error; 1685 } else { 1686 spin_lock_irqsave(&priv->tx_lock, flags); 1687 priv->tx_outstanding_bytes += count; 1688 priv->tx_bytes += count; 1689 spin_unlock_irqrestore(&priv->tx_lock, flags); 1690 } 1691 1692 /* we are done with this urb, so let the host driver 1693 * really free it when it is finished with it */ 1694 usb_free_urb(urb); 1695 1696 dbg("%s write returning: %d", __func__, count); 1697 return count; 1698 error: 1699 usb_free_urb(urb); 1700 error_no_urb: 1701 kfree(buffer); 1702 error_no_buffer: 1703 spin_lock_irqsave(&priv->tx_lock, flags); 1704 priv->tx_outstanding_urbs--; 1705 spin_unlock_irqrestore(&priv->tx_lock, flags); 1706 return count; 1707 } /* ftdi_write */ 1708 1709 1710 /* This function may get called when the device is closed */ 1711 1712 static void ftdi_write_bulk_callback(struct urb *urb) 1713 { 1714 unsigned long flags; 1715 struct usb_serial_port *port = urb->context; 1716 struct ftdi_private *priv; 1717 int data_offset; /* will be 1 for the SIO and 0 otherwise */ 1718 unsigned long countback; 1719 int status = urb->status; 1720 1721 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1722 kfree(urb->transfer_buffer); 1723 1724 dbg("%s - port %d", __func__, port->number); 1725 1726 if (status) { 1727 dbg("nonzero write bulk status received: %d", status); 1728 return; 1729 } 1730 1731 priv = usb_get_serial_port_data(port); 1732 if (!priv) { 1733 dbg("%s - bad port private data pointer - exiting", __func__); 1734 return; 1735 } 1736 /* account for transferred data */ 1737 countback = urb->actual_length; 1738 data_offset = priv->write_offset; 1739 if (data_offset > 0) { 1740 /* Subtract the control bytes */ 1741 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ)); 1742 } 1743 spin_lock_irqsave(&priv->tx_lock, flags); 1744 --priv->tx_outstanding_urbs; 1745 priv->tx_outstanding_bytes -= countback; 1746 spin_unlock_irqrestore(&priv->tx_lock, flags); 1747 1748 usb_serial_port_softint(port); 1749 } /* ftdi_write_bulk_callback */ 1750 1751 1752 static int ftdi_write_room(struct tty_struct *tty) 1753 { 1754 struct usb_serial_port *port = tty->driver_data; 1755 struct ftdi_private *priv = usb_get_serial_port_data(port); 1756 int room; 1757 unsigned long flags; 1758 1759 dbg("%s - port %d", __func__, port->number); 1760 1761 spin_lock_irqsave(&priv->tx_lock, flags); 1762 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { 1763 /* 1764 * We really can take anything the user throws at us 1765 * but let's pick a nice big number to tell the tty 1766 * layer that we have lots of free space 1767 */ 1768 room = 2048; 1769 } else { 1770 room = 0; 1771 } 1772 spin_unlock_irqrestore(&priv->tx_lock, flags); 1773 return room; 1774 } 1775 1776 static int ftdi_chars_in_buffer(struct tty_struct *tty) 1777 { 1778 struct usb_serial_port *port = tty->driver_data; 1779 struct ftdi_private *priv = usb_get_serial_port_data(port); 1780 int buffered; 1781 unsigned long flags; 1782 1783 dbg("%s - port %d", __func__, port->number); 1784 1785 spin_lock_irqsave(&priv->tx_lock, flags); 1786 buffered = (int)priv->tx_outstanding_bytes; 1787 spin_unlock_irqrestore(&priv->tx_lock, flags); 1788 if (buffered < 0) { 1789 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", 1790 __func__); 1791 buffered = 0; 1792 } 1793 return buffered; 1794 } 1795 1796 static void ftdi_read_bulk_callback(struct urb *urb) 1797 { 1798 struct usb_serial_port *port = urb->context; 1799 struct tty_struct *tty; 1800 struct ftdi_private *priv; 1801 unsigned long countread; 1802 unsigned long flags; 1803 int status = urb->status; 1804 1805 if (urb->number_of_packets > 0) { 1806 dev_err(&port->dev, "%s transfer_buffer_length %d " 1807 "actual_length %d number of packets %d\n", __func__, 1808 urb->transfer_buffer_length, 1809 urb->actual_length, urb->number_of_packets); 1810 dev_err(&port->dev, "%s transfer_flags %x\n", __func__, 1811 urb->transfer_flags); 1812 } 1813 1814 dbg("%s - port %d", __func__, port->number); 1815 1816 if (port->port.count <= 0) 1817 return; 1818 1819 tty = tty_port_tty_get(&port->port); 1820 if (!tty) { 1821 dbg("%s - bad tty pointer - exiting", __func__); 1822 return; 1823 } 1824 1825 priv = usb_get_serial_port_data(port); 1826 if (!priv) { 1827 dbg("%s - bad port private data pointer - exiting", __func__); 1828 goto out; 1829 } 1830 1831 if (urb != port->read_urb) 1832 dev_err(&port->dev, "%s - Not my urb!\n", __func__); 1833 1834 if (status) { 1835 /* This will happen at close every time so it is a dbg not an 1836 err */ 1837 dbg("(this is ok on close) nonzero read bulk status received: %d", status); 1838 goto out; 1839 } 1840 1841 /* count data bytes, but not status bytes */ 1842 countread = urb->actual_length; 1843 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ); 1844 spin_lock_irqsave(&priv->rx_lock, flags); 1845 priv->rx_bytes += countread; 1846 spin_unlock_irqrestore(&priv->rx_lock, flags); 1847 1848 ftdi_process_read(&priv->rx_work.work); 1849 out: 1850 tty_kref_put(tty); 1851 } /* ftdi_read_bulk_callback */ 1852 1853 1854 static void ftdi_process_read(struct work_struct *work) 1855 { /* ftdi_process_read */ 1856 struct ftdi_private *priv = 1857 container_of(work, struct ftdi_private, rx_work.work); 1858 struct usb_serial_port *port = priv->port; 1859 struct urb *urb; 1860 struct tty_struct *tty; 1861 char error_flag; 1862 unsigned char *data; 1863 1864 int i; 1865 int result; 1866 int need_flip; 1867 int packet_offset; 1868 unsigned long flags; 1869 1870 dbg("%s - port %d", __func__, port->number); 1871 1872 if (port->port.count <= 0) 1873 return; 1874 1875 tty = tty_port_tty_get(&port->port); 1876 if (!tty) { 1877 dbg("%s - bad tty pointer - exiting", __func__); 1878 return; 1879 } 1880 1881 priv = usb_get_serial_port_data(port); 1882 if (!priv) { 1883 dbg("%s - bad port private data pointer - exiting", __func__); 1884 goto out; 1885 } 1886 1887 urb = port->read_urb; 1888 if (!urb) { 1889 dbg("%s - bad read_urb pointer - exiting", __func__); 1890 goto out; 1891 } 1892 1893 data = urb->transfer_buffer; 1894 1895 if (priv->rx_processed) { 1896 dbg("%s - already processed: %d bytes, %d remain", __func__, 1897 priv->rx_processed, 1898 urb->actual_length - priv->rx_processed); 1899 } else { 1900 /* The first two bytes of every read packet are status */ 1901 if (urb->actual_length > 2) 1902 usb_serial_debug_data(debug, &port->dev, __func__, 1903 urb->actual_length, data); 1904 else 1905 dbg("Status only: %03oo %03oo", data[0], data[1]); 1906 } 1907 1908 1909 /* TO DO -- check for hung up line and handle appropriately: */ 1910 /* send hangup */ 1911 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 1912 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 1913 1914 need_flip = 0; 1915 for (packet_offset = priv->rx_processed; 1916 packet_offset < urb->actual_length; packet_offset += PKTSZ) { 1917 int length; 1918 1919 /* Compare new line status to the old one, signal if different/ 1920 N.B. packet may be processed more than once, but differences 1921 are only processed once. */ 1922 if (priv != NULL) { 1923 char new_status = data[packet_offset + 0] & 1924 FTDI_STATUS_B0_MASK; 1925 if (new_status != priv->prev_status) { 1926 priv->diff_status |= 1927 new_status ^ priv->prev_status; 1928 wake_up_interruptible(&priv->delta_msr_wait); 1929 priv->prev_status = new_status; 1930 } 1931 } 1932 1933 length = min(PKTSZ, urb->actual_length-packet_offset)-2; 1934 if (length < 0) { 1935 dev_err(&port->dev, "%s - bad packet length: %d\n", 1936 __func__, length+2); 1937 length = 0; 1938 } 1939 1940 if (priv->rx_flags & THROTTLED) { 1941 dbg("%s - throttled", __func__); 1942 break; 1943 } 1944 if (tty_buffer_request_room(tty, length) < length) { 1945 /* break out & wait for throttling/unthrottling to 1946 happen */ 1947 dbg("%s - receive room low", __func__); 1948 break; 1949 } 1950 1951 /* Handle errors and break */ 1952 error_flag = TTY_NORMAL; 1953 /* Although the device uses a bitmask and hence can have 1954 multiple errors on a packet - the order here sets the 1955 priority the error is returned to the tty layer */ 1956 1957 if (data[packet_offset+1] & FTDI_RS_OE) { 1958 error_flag = TTY_OVERRUN; 1959 dbg("OVERRRUN error"); 1960 } 1961 if (data[packet_offset+1] & FTDI_RS_BI) { 1962 error_flag = TTY_BREAK; 1963 dbg("BREAK received"); 1964 } 1965 if (data[packet_offset+1] & FTDI_RS_PE) { 1966 error_flag = TTY_PARITY; 1967 dbg("PARITY error"); 1968 } 1969 if (data[packet_offset+1] & FTDI_RS_FE) { 1970 error_flag = TTY_FRAME; 1971 dbg("FRAMING error"); 1972 } 1973 if (length > 0) { 1974 for (i = 2; i < length+2; i++) { 1975 /* Note that the error flag is duplicated for 1976 every character received since we don't know 1977 which character it applied to */ 1978 tty_insert_flip_char(tty, 1979 data[packet_offset + i], error_flag); 1980 } 1981 need_flip = 1; 1982 } 1983 1984 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 1985 /* if a parity error is detected you get status packets forever 1986 until a character is sent without a parity error. 1987 This doesn't work well since the application receives a 1988 never ending stream of bad data - even though new data 1989 hasn't been sent. Therefore I (bill) have taken this out. 1990 However - this might make sense for framing errors and so on 1991 so I am leaving the code in for now. 1992 */ 1993 else { 1994 if (error_flag != TTY_NORMAL) { 1995 dbg("error_flag is not normal"); 1996 /* In this case it is just status - if that is 1997 an error send a bad character */ 1998 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 1999 tty_flip_buffer_push(tty); 2000 tty_insert_flip_char(tty, 0xff, error_flag); 2001 need_flip = 1; 2002 } 2003 } 2004 #endif 2005 } /* "for(packet_offset=0..." */ 2006 2007 /* Low latency */ 2008 if (need_flip) 2009 tty_flip_buffer_push(tty); 2010 2011 if (packet_offset < urb->actual_length) { 2012 /* not completely processed - record progress */ 2013 priv->rx_processed = packet_offset; 2014 dbg("%s - incomplete, %d bytes processed, %d remain", 2015 __func__, packet_offset, 2016 urb->actual_length - packet_offset); 2017 /* check if we were throttled while processing */ 2018 spin_lock_irqsave(&priv->rx_lock, flags); 2019 if (priv->rx_flags & THROTTLED) { 2020 priv->rx_flags |= ACTUALLY_THROTTLED; 2021 spin_unlock_irqrestore(&priv->rx_lock, flags); 2022 dbg("%s - deferring remainder until unthrottled", 2023 __func__); 2024 return; 2025 } 2026 spin_unlock_irqrestore(&priv->rx_lock, flags); 2027 /* if the port is closed stop trying to read */ 2028 if (port->port.count > 0) 2029 /* delay processing of remainder */ 2030 schedule_delayed_work(&priv->rx_work, 1); 2031 else 2032 dbg("%s - port is closed", __func__); 2033 goto out; 2034 } 2035 2036 /* urb is completely processed */ 2037 priv->rx_processed = 0; 2038 2039 /* if the port is closed stop trying to read */ 2040 if (port->port.count > 0) { 2041 /* Continue trying to always read */ 2042 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2043 usb_rcvbulkpipe(port->serial->dev, 2044 port->bulk_in_endpointAddress), 2045 port->read_urb->transfer_buffer, 2046 port->read_urb->transfer_buffer_length, 2047 ftdi_read_bulk_callback, port); 2048 2049 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2050 if (result) 2051 dev_err(&port->dev, 2052 "%s - failed resubmitting read urb, error %d\n", 2053 __func__, result); 2054 } 2055 out: 2056 tty_kref_put(tty); 2057 } /* ftdi_process_read */ 2058 2059 2060 static void ftdi_break_ctl(struct tty_struct *tty, int break_state) 2061 { 2062 struct usb_serial_port *port = tty->driver_data; 2063 struct ftdi_private *priv = usb_get_serial_port_data(port); 2064 __u16 urb_value = 0; 2065 char buf[1]; 2066 2067 /* break_state = -1 to turn on break, and 0 to turn off break */ 2068 /* see drivers/char/tty_io.c to see it used */ 2069 /* last_set_data_urb_value NEVER has the break bit set in it */ 2070 2071 if (break_state) 2072 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2073 else 2074 urb_value = priv->last_set_data_urb_value; 2075 2076 if (usb_control_msg(port->serial->dev, 2077 usb_sndctrlpipe(port->serial->dev, 0), 2078 FTDI_SIO_SET_DATA_REQUEST, 2079 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2080 urb_value , priv->interface, 2081 buf, 0, WDR_TIMEOUT) < 0) { 2082 dev_err(&port->dev, "%s FAILED to enable/disable break state " 2083 "(state was %d)\n", __func__, break_state); 2084 } 2085 2086 dbg("%s break state is %d - urb is %d", __func__, 2087 break_state, urb_value); 2088 2089 } 2090 2091 2092 /* old_termios contains the original termios settings and tty->termios contains 2093 * the new setting to be used 2094 * WARNING: set_termios calls this with old_termios in kernel space 2095 */ 2096 2097 static void ftdi_set_termios(struct tty_struct *tty, 2098 struct usb_serial_port *port, struct ktermios *old_termios) 2099 { /* ftdi_termios */ 2100 struct usb_device *dev = port->serial->dev; 2101 struct ftdi_private *priv = usb_get_serial_port_data(port); 2102 struct ktermios *termios = tty->termios; 2103 unsigned int cflag = termios->c_cflag; 2104 __u16 urb_value; /* will hold the new flags */ 2105 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2106 2107 /* Added for xon/xoff support */ 2108 unsigned int iflag = termios->c_iflag; 2109 unsigned char vstop; 2110 unsigned char vstart; 2111 2112 dbg("%s", __func__); 2113 2114 /* Force baud rate if this device requires it, unless it is set to 2115 B0. */ 2116 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { 2117 dbg("%s: forcing baud rate for this device", __func__); 2118 tty_encode_baud_rate(tty, priv->force_baud, 2119 priv->force_baud); 2120 } 2121 2122 /* Force RTS-CTS if this device requires it. */ 2123 if (priv->force_rtscts) { 2124 dbg("%s: forcing rtscts for this device", __func__); 2125 termios->c_cflag |= CRTSCTS; 2126 } 2127 2128 cflag = termios->c_cflag; 2129 2130 /* FIXME -For this cut I don't care if the line is really changing or 2131 not - so just do the change regardless - should be able to 2132 compare old_termios and tty->termios */ 2133 /* NOTE These routines can get interrupted by 2134 ftdi_sio_read_bulk_callback - need to examine what this means - 2135 don't see any problems yet */ 2136 2137 /* Set number of data bits, parity, stop bits */ 2138 2139 termios->c_cflag &= ~CMSPAR; 2140 2141 urb_value = 0; 2142 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2143 FTDI_SIO_SET_DATA_STOP_BITS_1); 2144 urb_value |= (cflag & PARENB ? 2145 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2146 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2147 FTDI_SIO_SET_DATA_PARITY_NONE); 2148 if (cflag & CSIZE) { 2149 switch (cflag & CSIZE) { 2150 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2151 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2152 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2153 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2154 default: 2155 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); 2156 } 2157 } 2158 2159 /* This is needed by the break command since it uses the same command 2160 - but is or'ed with this value */ 2161 priv->last_set_data_urb_value = urb_value; 2162 2163 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2164 FTDI_SIO_SET_DATA_REQUEST, 2165 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2166 urb_value , priv->interface, 2167 buf, 0, WDR_SHORT_TIMEOUT) < 0) { 2168 dev_err(&port->dev, "%s FAILED to set " 2169 "databits/stopbits/parity\n", __func__); 2170 } 2171 2172 /* Now do the baudrate */ 2173 if ((cflag & CBAUD) == B0) { 2174 /* Disable flow control */ 2175 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2176 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2177 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2178 0, priv->interface, 2179 buf, 0, WDR_TIMEOUT) < 0) { 2180 dev_err(&port->dev, 2181 "%s error from disable flowcontrol urb\n", 2182 __func__); 2183 } 2184 /* Drop RTS and DTR */ 2185 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2186 } else { 2187 /* set the baudrate determined before */ 2188 if (change_speed(tty, port)) 2189 dev_err(&port->dev, "%s urb failed to set baudrate\n", 2190 __func__); 2191 /* Ensure RTS and DTR are raised when baudrate changed from 0 */ 2192 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) 2193 set_mctrl(port, TIOCM_DTR | TIOCM_RTS); 2194 } 2195 2196 /* Set flow control */ 2197 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2198 if (cflag & CRTSCTS) { 2199 dbg("%s Setting to CRTSCTS flow control", __func__); 2200 if (usb_control_msg(dev, 2201 usb_sndctrlpipe(dev, 0), 2202 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2203 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2204 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2205 buf, 0, WDR_TIMEOUT) < 0) { 2206 dev_err(&port->dev, 2207 "urb failed to set to rts/cts flow control\n"); 2208 } 2209 2210 } else { 2211 /* 2212 * Xon/Xoff code 2213 * 2214 * Check the IXOFF status in the iflag component of the 2215 * termios structure. If IXOFF is not set, the pre-xon/xoff 2216 * code is executed. 2217 */ 2218 if (iflag & IXOFF) { 2219 dbg("%s request to enable xonxoff iflag=%04x", 2220 __func__, iflag); 2221 /* Try to enable the XON/XOFF on the ftdi_sio 2222 * Set the vstart and vstop -- could have been done up 2223 * above where a lot of other dereferencing is done but 2224 * that would be very inefficient as vstart and vstop 2225 * are not always needed. 2226 */ 2227 vstart = termios->c_cc[VSTART]; 2228 vstop = termios->c_cc[VSTOP]; 2229 urb_value = (vstop << 8) | (vstart); 2230 2231 if (usb_control_msg(dev, 2232 usb_sndctrlpipe(dev, 0), 2233 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2234 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2235 urb_value , (FTDI_SIO_XON_XOFF_HS 2236 | priv->interface), 2237 buf, 0, WDR_TIMEOUT) < 0) { 2238 dev_err(&port->dev, "urb failed to set to " 2239 "xon/xoff flow control\n"); 2240 } 2241 } else { 2242 /* else clause to only run if cflag ! CRTSCTS and iflag 2243 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty 2244 * stack - not by device */ 2245 dbg("%s Turning off hardware flow control", __func__); 2246 if (usb_control_msg(dev, 2247 usb_sndctrlpipe(dev, 0), 2248 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2249 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2250 0, priv->interface, 2251 buf, 0, WDR_TIMEOUT) < 0) { 2252 dev_err(&port->dev, 2253 "urb failed to clear flow control\n"); 2254 } 2255 } 2256 2257 } 2258 return; 2259 } 2260 2261 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) 2262 { 2263 struct usb_serial_port *port = tty->driver_data; 2264 struct ftdi_private *priv = usb_get_serial_port_data(port); 2265 unsigned char buf[2]; 2266 int ret; 2267 2268 dbg("%s TIOCMGET", __func__); 2269 switch (priv->chip_type) { 2270 case SIO: 2271 /* Request the status from the device */ 2272 ret = usb_control_msg(port->serial->dev, 2273 usb_rcvctrlpipe(port->serial->dev, 0), 2274 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2275 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2276 0, 0, 2277 buf, 1, WDR_TIMEOUT); 2278 if (ret < 0) { 2279 dbg("%s Could not get modem status of device - err: %d", __func__, 2280 ret); 2281 return ret; 2282 } 2283 break; 2284 case FT8U232AM: 2285 case FT232BM: 2286 case FT2232C: 2287 case FT232RL: 2288 /* the 8U232AM returns a two byte value (the sio is a 1 byte 2289 value) - in the same format as the data returned from the in 2290 point */ 2291 ret = usb_control_msg(port->serial->dev, 2292 usb_rcvctrlpipe(port->serial->dev, 0), 2293 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2294 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2295 0, priv->interface, 2296 buf, 2, WDR_TIMEOUT); 2297 if (ret < 0) { 2298 dbg("%s Could not get modem status of device - err: %d", __func__, 2299 ret); 2300 return ret; 2301 } 2302 break; 2303 default: 2304 return -EFAULT; 2305 break; 2306 } 2307 2308 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2309 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2310 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2311 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2312 priv->last_dtr_rts; 2313 } 2314 2315 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, 2316 unsigned int set, unsigned int clear) 2317 { 2318 struct usb_serial_port *port = tty->driver_data; 2319 dbg("%s TIOCMSET", __func__); 2320 return update_mctrl(port, set, clear); 2321 } 2322 2323 2324 static int ftdi_ioctl(struct tty_struct *tty, struct file *file, 2325 unsigned int cmd, unsigned long arg) 2326 { 2327 struct usb_serial_port *port = tty->driver_data; 2328 struct ftdi_private *priv = usb_get_serial_port_data(port); 2329 2330 dbg("%s cmd 0x%04x", __func__, cmd); 2331 2332 /* Based on code from acm.c and others */ 2333 switch (cmd) { 2334 2335 case TIOCGSERIAL: /* gets serial port data */ 2336 return get_serial_info(port, 2337 (struct serial_struct __user *) arg); 2338 2339 case TIOCSSERIAL: /* sets serial port data */ 2340 return set_serial_info(tty, port, 2341 (struct serial_struct __user *) arg); 2342 2343 /* 2344 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2345 * - mask passed in arg for lines of interest 2346 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2347 * Caller should use TIOCGICOUNT to see which one it was. 2348 * 2349 * This code is borrowed from linux/drivers/char/serial.c 2350 */ 2351 case TIOCMIWAIT: 2352 while (priv != NULL) { 2353 interruptible_sleep_on(&priv->delta_msr_wait); 2354 /* see if a signal did it */ 2355 if (signal_pending(current)) 2356 return -ERESTARTSYS; 2357 else { 2358 char diff = priv->diff_status; 2359 2360 if (diff == 0) 2361 return -EIO; /* no change => error */ 2362 2363 /* Consume all events */ 2364 priv->diff_status = 0; 2365 2366 /* Return 0 if caller wanted to know about 2367 these bits */ 2368 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2369 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2370 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2371 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { 2372 return 0; 2373 } 2374 /* 2375 * Otherwise caller can't care less about what 2376 * happened,and so we continue to wait for more 2377 * events. 2378 */ 2379 } 2380 } 2381 return 0; 2382 default: 2383 break; 2384 } 2385 /* This is not necessarily an error - turns out the higher layers 2386 * will do some ioctls themselves (see comment above) 2387 */ 2388 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); 2389 return -ENOIOCTLCMD; 2390 } 2391 2392 static void ftdi_throttle(struct tty_struct *tty) 2393 { 2394 struct usb_serial_port *port = tty->driver_data; 2395 struct ftdi_private *priv = usb_get_serial_port_data(port); 2396 unsigned long flags; 2397 2398 dbg("%s - port %d", __func__, port->number); 2399 2400 spin_lock_irqsave(&priv->rx_lock, flags); 2401 priv->rx_flags |= THROTTLED; 2402 spin_unlock_irqrestore(&priv->rx_lock, flags); 2403 } 2404 2405 2406 static void ftdi_unthrottle(struct tty_struct *tty) 2407 { 2408 struct usb_serial_port *port = tty->driver_data; 2409 struct ftdi_private *priv = usb_get_serial_port_data(port); 2410 int actually_throttled; 2411 unsigned long flags; 2412 2413 dbg("%s - port %d", __func__, port->number); 2414 2415 spin_lock_irqsave(&priv->rx_lock, flags); 2416 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2417 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2418 spin_unlock_irqrestore(&priv->rx_lock, flags); 2419 2420 if (actually_throttled) 2421 schedule_delayed_work(&priv->rx_work, 0); 2422 } 2423 2424 static int __init ftdi_init(void) 2425 { 2426 int retval; 2427 2428 dbg("%s", __func__); 2429 if (vendor > 0 && product > 0) { 2430 /* Add user specified VID/PID to reserved element of table. */ 2431 int i; 2432 for (i = 0; id_table_combined[i].idVendor; i++) 2433 ; 2434 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 2435 id_table_combined[i].idVendor = vendor; 2436 id_table_combined[i].idProduct = product; 2437 } 2438 retval = usb_serial_register(&ftdi_sio_device); 2439 if (retval) 2440 goto failed_sio_register; 2441 retval = usb_register(&ftdi_driver); 2442 if (retval) 2443 goto failed_usb_register; 2444 2445 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 2446 DRIVER_DESC "\n"); 2447 return 0; 2448 failed_usb_register: 2449 usb_serial_deregister(&ftdi_sio_device); 2450 failed_sio_register: 2451 return retval; 2452 } 2453 2454 2455 static void __exit ftdi_exit(void) 2456 { 2457 2458 dbg("%s", __func__); 2459 2460 usb_deregister(&ftdi_driver); 2461 usb_serial_deregister(&ftdi_sio_device); 2462 2463 } 2464 2465 2466 module_init(ftdi_init); 2467 module_exit(ftdi_exit); 2468 2469 MODULE_AUTHOR(DRIVER_AUTHOR); 2470 MODULE_DESCRIPTION(DRIVER_DESC); 2471 MODULE_LICENSE("GPL"); 2472 2473 module_param(debug, bool, S_IRUGO | S_IWUSR); 2474 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2475 module_param(vendor, ushort, 0); 2476 MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" 2477 __MODULE_STRING(FTDI_VID)")"); 2478 module_param(product, ushort, 0); 2479 MODULE_PARM_DESC(product, "User specified product ID"); 2480 2481