pl2303.c revision d8789b2b90aeb53ce59ac232d2ff0d8357d53893
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Prolific PL2303 USB to serial adaptor driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 44d0dce3e0b794942407391c52f8dd2760802f391Greg Kroah-Hartman * Copyright (C) 2001-2007 Greg Kroah-Hartman (greg@kroah.com) 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2003 IBM Corp. 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Original driver for 2.2.x by anonymous 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 94d0dce3e0b794942407391c52f8dd2760802f391Greg Kroah-Hartman * This program is free software; you can redistribute it and/or 104d0dce3e0b794942407391c52f8dd2760802f391Greg Kroah-Hartman * modify it under the terms of the GNU General Public License version 114d0dce3e0b794942407391c52f8dd2760802f391Greg Kroah-Hartman * 2 as published by the Free Software Foundation. 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 133a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox * See Documentation/usb/usb-serial.txt for more information on using this 143a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox * driver 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty.h> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_driver.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_flip.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/serial.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/moduleparam.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/spinlock.h> 293a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox#include <linux/uaccess.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/usb.h> 31a969888ce91673c7f4b86520d851a6f0d5a5fa7dGreg Kroah-Hartman#include <linux/usb/serial.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "pl2303.h" 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version Information 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DRIVER_DESC "Prolific PL2303 USB to serial adaptor driver" 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3990ab5ee94171b3e28de6bb42ee30b527014e0be7Rusty Russellstatic bool debug; 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 417d40d7e85a25e01948bcb4dc3eda1355af318337Németh Mártonstatic const struct usb_device_id id_table[] = { 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) }, 443d861494729c70d9ebeb7d93caa107897925c355Peter Moulder { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_DCU11) }, 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ3) }, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_PHAROS) }, 47b483b6aaa56f0db72fa50e85b6499a32d82009bfMax Arnold { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ALDIGA) }, 484be2fa186d54758296d30c565d7b5111dd45b000Steve Murphy { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MMX) }, 49727df3569b358ef440683787c2b9fe8cc55a0954Greg Kroah-Hartman { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GPRS) }, 5018344a1cd5889d48dac67229fcf024ed300030d5Simone Contini { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) }, 5196a3e79edff6f41b0f115a82f1a39d66218077a7Dario Lombardo { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) }, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, 538a28dea3accda319d51a1bf4d3e280771d946f78Masakazu Mokuno { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) }, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) }, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) }, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID_UCSGT) }, 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID) }, 5958381719845d9ee19a321c2eb69cfa9b7886be9aWang Jun { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID_2080) }, 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) }, 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) }, 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) }, 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) }, 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) }, 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) }, 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_ID) }, 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_ID) }, 68a8310f3b8b713e52d77c56d4b8865685ee40d02aLuiz Fernando Capitulino { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_SX1) }, 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X65) }, 70a8310f3b8b713e52d77c56d4b8865685ee40d02aLuiz Fernando Capitulino { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X75) }, 71e7beb667842ad0f6ec95a22e7c88e71dfbd60649Andreas Loibl { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_EF81) }, 72912299f6f0587bb6c221705ed9949709b36b3c56Alan Cox { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_ID_S81) }, /* Benq/Siemens S81 */ 73acbb36f116243bed515357264ecbb6ff9c6d2a5bPeter Favrholdt { USB_DEVICE(SYNTECH_VENDOR_ID, SYNTECH_PRODUCT_ID) }, 74c6c27721a42b991965bb792d5c196b8331d008d5Christian Lindner { USB_DEVICE(NOKIA_CA42_VENDOR_ID, NOKIA_CA42_PRODUCT_ID) }, 75c6c27721a42b991965bb792d5c196b8331d008d5Christian Lindner { USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) }, 766cceb05f8df6e28ab90f44bdeba50d33928cdee5Denis MONTERRAT { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) }, 77c6c27721a42b991965bb792d5c196b8331d008d5Christian Lindner { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) }, 78491b04ce1c9adfa0cd73f095086f3c37da81b667Dick Streefland { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, 793b92847425a98d26ad9d2b8682d3ce6020c90752Matthew Meno { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) }, 80b7aa94b682dc6b6dcdc01d36f8e65cef5aae81e2Kim Oldfield { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) }, 818fd801339350b63cbb90730ff8b2be349fb3dc67Johannes Steingraeber { USB_DEVICE(ALCOR_VENDOR_ID, ALCOR_PRODUCT_ID) }, 822d94b981c7fcb0fba4aa3442cd180066dbedbbc8YOSHIFUJI Hideaki { USB_DEVICE(WS002IN_VENDOR_ID, WS002IN_PRODUCT_ID) }, 839e3285dba5cac12d656da66fd7d420ff1bc0ecc0Magnus Damm { USB_DEVICE(COREGA_VENDOR_ID, COREGA_PRODUCT_ID) }, 84cc311ee7d29d96f0bf15599f4456012d6f5ea23cDamien Stuart { USB_DEVICE(YCCABLE_VENDOR_ID, YCCABLE_PRODUCT_ID) }, 857c99200142c04d0f1ed3f048014591f841efdaedMatthew Arnold { USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) }, 86af4b8514aafd53d97b05a0a30b7d4cfd2cbb7b81Mike Provencher { USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) }, 878540d66615c39010168ab97eaafb476ec2851298Gianpaolo Cugola { USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) }, 88f36ecd5de93e4c85a9e3d25100c6e233155b12e5Jef Driesen { USB_DEVICE(ZEAGLE_VENDOR_ID, ZEAGLE_N2ITION3_PRODUCT_ID) }, 8949276560c9004fce24c42e3c0ad75f34d956fc63Khanh-Dang Nguyen Thu Lam { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, 9035904e6b5106fda51b04c8b8080c04466865415fPawel Ludwikow { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) }, 919a61d72602771906e11a5944e8571f8006387b39Manuel Jander { USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) }, 92598f0b703506da841d3459dc0c48506be14d1778Eric Benoit { USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) }, 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } /* Terminating entry */ 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 96372db8a780f63368c6960a167b7a19aad776d704Thiago GalesiMODULE_DEVICE_TABLE(usb, id_table); 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct usb_driver pl2303_driver = { 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "pl2303", 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = usb_serial_probe, 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .disconnect = usb_serial_disconnect, 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = id_table, 103fcf9e55e066d12c18add7c8a292bf879b45b1d55Sarah Sharp .suspend = usb_serial_suspend, 104fcf9e55e066d12c18add7c8a292bf879b45b1d55Sarah Sharp .resume = usb_serial_resume, 105fcf9e55e066d12c18add7c8a292bf879b45b1d55Sarah Sharp .supports_autosuspend = 1, 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SET_LINE_REQUEST_TYPE 0x21 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SET_LINE_REQUEST 0x20 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SET_CONTROL_REQUEST_TYPE 0x21 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SET_CONTROL_REQUEST 0x22 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CONTROL_DTR 0x01 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CONTROL_RTS 0x02 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BREAK_REQUEST_TYPE 0x21 1173a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox#define BREAK_REQUEST 0x23 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BREAK_ON 0xffff 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BREAK_OFF 0x0000 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GET_LINE_REQUEST_TYPE 0xa1 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GET_LINE_REQUEST 0x21 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VENDOR_WRITE_REQUEST_TYPE 0x40 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VENDOR_WRITE_REQUEST 0x01 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VENDOR_READ_REQUEST_TYPE 0xc0 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VENDOR_READ_REQUEST 0x01 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_STATE 0x08 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_STATE_TRANSIENT_MASK 0x74 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_DCD 0x01 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_DSR 0x02 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_BREAK_ERROR 0x04 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_RING 0x08 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_FRAME_ERROR 0x10 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_PARITY_ERROR 0x20 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_OVERRUN_ERROR 0x40 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_CTS 0x80 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum pl2303_type { 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type_0, /* don't know the difference between type 0 and */ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type_1, /* type 1, until someone from prolific tells us... */ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HX, /* HX version of the pl2303 chip */ 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct pl2303_private { 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t lock; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t delta_msr_wait; 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 line_control; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 line_status; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum pl2303_type type; 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 156eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharpstatic int pl2303_vendor_read(__u16 value, __u16 index, 157eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp struct usb_serial *serial, unsigned char *buf) 158eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp{ 159eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp int res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 160eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, 161eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp value, index, buf, 1, 100); 162d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&serial->dev->dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n", 163d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, value, index, 164d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman res, buf[0]); 165eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp return res; 166eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp} 167eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp 168eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharpstatic int pl2303_vendor_write(__u16 value, __u16 index, 169eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp struct usb_serial *serial) 170eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp{ 171eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp int res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 172eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, 173eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp value, index, NULL, 0, 100); 174d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&serial->dev->dev, "0x%x:0x%x:0x%x:0x%x %d\n", 175d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, value, index, 176d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman res); 177eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp return res; 178eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp} 179eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp 180372db8a780f63368c6960a167b7a19aad776d704Thiago Galesistatic int pl2303_startup(struct usb_serial *serial) 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum pl2303_type type = type_0; 1843e152505a57db6622deb1322c22551c046e33d16Sarah Sharp unsigned char *buf; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1873e152505a57db6622deb1322c22551c046e33d16Sarah Sharp buf = kmalloc(10, GFP_KERNEL); 1883e152505a57db6622deb1322c22551c046e33d16Sarah Sharp if (buf == NULL) 1893e152505a57db6622deb1322c22551c046e33d16Sarah Sharp return -ENOMEM; 1903e152505a57db6622deb1322c22551c046e33d16Sarah Sharp 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (serial->dev->descriptor.bDeviceClass == 0x02) 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = type_0; 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = HX; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (serial->dev->descriptor.bDeviceClass == 0x00) 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = type_1; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (serial->dev->descriptor.bDeviceClass == 0xFF) 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = type_1; 199d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&serial->interface->dev, "device type: %d\n", type); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < serial->num_ports; ++i) { 20280b6ca48321974a6566a1c9048ba34f60420bca6Eric Sesterhenn priv = kzalloc(sizeof(struct pl2303_private), GFP_KERNEL); 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!priv) 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto cleanup; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init(&priv->lock); 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_waitqueue_head(&priv->delta_msr_wait); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->type = type; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds usb_set_serial_port_data(serial->port[i], priv); 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2103e152505a57db6622deb1322c22551c046e33d16Sarah Sharp 2113e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_read(0x8484, 0, serial, buf); 2123e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_write(0x0404, 0, serial); 2133e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_read(0x8484, 0, serial, buf); 2143e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_read(0x8383, 0, serial, buf); 2153e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_read(0x8484, 0, serial, buf); 2163e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_write(0x0404, 1, serial); 2173e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_read(0x8484, 0, serial, buf); 2183e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_read(0x8383, 0, serial, buf); 2193e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_write(0, 1, serial); 2203e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_write(1, 0, serial); 2213e152505a57db6622deb1322c22551c046e33d16Sarah Sharp if (type == HX) 2223e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_write(2, 0x44, serial); 2233e152505a57db6622deb1322c22551c046e33d16Sarah Sharp else 2243e152505a57db6622deb1322c22551c046e33d16Sarah Sharp pl2303_vendor_write(2, 0x24, serial); 2253e152505a57db6622deb1322c22551c046e33d16Sarah Sharp 2263e152505a57db6622deb1322c22551c046e33d16Sarah Sharp kfree(buf); 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldscleanup: 2303e152505a57db6622deb1322c22551c046e33d16Sarah Sharp kfree(buf); 2313a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox for (--i; i >= 0; --i) { 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv = usb_get_serial_port_data(serial->port[i]); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(priv); 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds usb_set_serial_port_data(serial->port[i], NULL); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 239372db8a780f63368c6960a167b7a19aad776d704Thiago Galesistatic int set_control_lines(struct usb_device *dev, u8 value) 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 2423a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox 243372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 244372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, 245372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi value, 0, NULL, 0, 100); 246d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&dev->dev, "%s - value = %d, retval = %d\n", __func__, 247d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman value, retval); 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25195da310e66ee8090119596c70ca8432e57f9a97fAlan Coxstatic void pl2303_set_termios(struct tty_struct *tty, 25295da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port, struct ktermios *old_termios) 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct usb_serial *serial = port->serial; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv = usb_get_serial_port_data(port); 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cflag; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *buf; 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int baud; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 control; 26225b8286805e856c8c7fda127018e31032c918015Frank Schaefer const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, 26325b8286805e856c8c7fda127018e31032c918015Frank Schaefer 4800, 7200, 9600, 14400, 19200, 28800, 38400, 26425b8286805e856c8c7fda127018e31032c918015Frank Schaefer 57600, 115200, 230400, 460800, 614400, 26525b8286805e856c8c7fda127018e31032c918015Frank Schaefer 921600, 1228800, 2457600, 3000000, 6000000 }; 26625b8286805e856c8c7fda127018e31032c918015Frank Schaefer int baud_floor, baud_ceil; 26725b8286805e856c8c7fda127018e31032c918015Frank Schaefer int k; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 269bf5e5834bffc62b50cd4a201804506eb11ef1af8Alan Cox /* The PL2303 is reported to lose bytes if you change 270bf5e5834bffc62b50cd4a201804506eb11ef1af8Alan Cox serial settings even to the same values as before. Thus 271bf5e5834bffc62b50cd4a201804506eb11ef1af8Alan Cox we actually need to filter in this specific case */ 272bf5e5834bffc62b50cd4a201804506eb11ef1af8Alan Cox 27395da310e66ee8090119596c70ca8432e57f9a97fAlan Cox if (!tty_termios_hw_change(tty->termios, old_termios)) 274bf5e5834bffc62b50cd4a201804506eb11ef1af8Alan Cox return; 275bf5e5834bffc62b50cd4a201804506eb11ef1af8Alan Cox 27695da310e66ee8090119596c70ca8432e57f9a97fAlan Cox cflag = tty->termios->c_cflag; 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 278372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi buf = kzalloc(7, GFP_KERNEL); 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!buf) { 280441b62c1edb986827154768d89bbac0ba779984fHarvey Harrison dev_err(&port->dev, "%s - out of memory.\n", __func__); 281a5b6f60c5a30c494017c7a2d11c4067f90d3d0dfAlan Cox /* Report back no change occurred */ 28295da310e66ee8090119596c70ca8432e57f9a97fAlan Cox *tty->termios = *old_termios; 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 286372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 287372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, 288372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 0, 0, buf, 7, 100); 289d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x\n", i, 290372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cflag & CSIZE) { 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cflag & CSIZE) { 2943a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox case CS5: 2953a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox buf[6] = 5; 2963a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox break; 2973a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox case CS6: 2983a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox buf[6] = 6; 2993a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox break; 3003a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox case CS7: 3013a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox buf[6] = 7; 3023a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox break; 3033a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox default: 3043a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox case CS8: 3053a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox buf[6] = 8; 3063a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox break; 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 308d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "data bits = %d\n", buf[6]); 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31125b8286805e856c8c7fda127018e31032c918015Frank Schaefer /* For reference buf[0]:buf[3] baud rate value */ 31225b8286805e856c8c7fda127018e31032c918015Frank Schaefer /* NOTE: Only the values defined in baud_sup are supported ! 31325b8286805e856c8c7fda127018e31032c918015Frank Schaefer * => if unsupported values are set, the PL2303 seems to use 31425b8286805e856c8c7fda127018e31032c918015Frank Schaefer * 9600 baud (at least my PL2303X always does) 31525b8286805e856c8c7fda127018e31032c918015Frank Schaefer */ 31695da310e66ee8090119596c70ca8432e57f9a97fAlan Cox baud = tty_get_baud_rate(tty); 317d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "baud requested = %d\n", baud); 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (baud) { 31925b8286805e856c8c7fda127018e31032c918015Frank Schaefer /* Set baudrate to nearest supported value */ 32025b8286805e856c8c7fda127018e31032c918015Frank Schaefer for (k=0; k<ARRAY_SIZE(baud_sup); k++) { 32125b8286805e856c8c7fda127018e31032c918015Frank Schaefer if (baud_sup[k] / baud) { 32225b8286805e856c8c7fda127018e31032c918015Frank Schaefer baud_ceil = baud_sup[k]; 32325b8286805e856c8c7fda127018e31032c918015Frank Schaefer if (k==0) { 32425b8286805e856c8c7fda127018e31032c918015Frank Schaefer baud = baud_ceil; 32525b8286805e856c8c7fda127018e31032c918015Frank Schaefer } else { 32625b8286805e856c8c7fda127018e31032c918015Frank Schaefer baud_floor = baud_sup[k-1]; 32725b8286805e856c8c7fda127018e31032c918015Frank Schaefer if ((baud_ceil % baud) 32825b8286805e856c8c7fda127018e31032c918015Frank Schaefer > (baud % baud_floor)) 32925b8286805e856c8c7fda127018e31032c918015Frank Schaefer baud = baud_floor; 33025b8286805e856c8c7fda127018e31032c918015Frank Schaefer else 33125b8286805e856c8c7fda127018e31032c918015Frank Schaefer baud = baud_ceil; 33225b8286805e856c8c7fda127018e31032c918015Frank Schaefer } 33325b8286805e856c8c7fda127018e31032c918015Frank Schaefer break; 33425b8286805e856c8c7fda127018e31032c918015Frank Schaefer } 33525b8286805e856c8c7fda127018e31032c918015Frank Schaefer } 33625b8286805e856c8c7fda127018e31032c918015Frank Schaefer if (baud > 1228800) { 33725b8286805e856c8c7fda127018e31032c918015Frank Schaefer /* type_0, type_1 only support up to 1228800 baud */ 33825b8286805e856c8c7fda127018e31032c918015Frank Schaefer if (priv->type != HX) 33925b8286805e856c8c7fda127018e31032c918015Frank Schaefer baud = 1228800; 34025b8286805e856c8c7fda127018e31032c918015Frank Schaefer else if (baud > 6000000) 34125b8286805e856c8c7fda127018e31032c918015Frank Schaefer baud = 6000000; 34225b8286805e856c8c7fda127018e31032c918015Frank Schaefer } 343d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "baud set = %d\n", baud); 3448d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński if (baud <= 115200) { 3458d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[0] = baud & 0xff; 3468d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[1] = (baud >> 8) & 0xff; 3478d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[2] = (baud >> 16) & 0xff; 3488d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[3] = (baud >> 24) & 0xff; 3498d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński } else { 3508d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński /* apparently the formula for higher speeds is: 3518d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński * baudrate = 12M * 32 / (2^buf[1]) / buf[0] 3528d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński */ 3538d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński unsigned tmp = 12*1000*1000*32 / baud; 3548d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[3] = 0x80; 3558d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[2] = 0; 3568d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[1] = (tmp >= 256); 3578d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński while (tmp >= 256) { 3588d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński tmp >>= 2; 3598d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[1] <<= 1; 3608d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński } 3618d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński buf[0] = tmp; 3628d48fdf689fed2c73c493e5146d1463689246442Michał Sroczyński } 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[4]=0 is 1 stop bits */ 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[4]=1 is 1.5 stop bits */ 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[4]=2 is 2 stop bits */ 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cflag & CSTOPB) { 36929cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer /* NOTE: Comply with "real" UARTs / RS232: 37029cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer * use 1.5 instead of 2 stop bits with 5 data bits 37129cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer */ 37229cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer if ((cflag & CSIZE) == CS5) { 37329cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer buf[4] = 1; 374d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "stop bits = 1.5\n"); 37529cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer } else { 37629cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer buf[4] = 2; 377d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "stop bits = 2\n"); 37829cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer } 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[4] = 0; 381d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "stop bits = 1\n"); 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cflag & PARENB) { 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=0 is none parity */ 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=1 is odd parity */ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=2 is even parity */ 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=3 is mark parity */ 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=4 is space parity */ 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cflag & PARODD) { 3916dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer if (cflag & CMSPAR) { 3926dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer buf[5] = 3; 393d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = mark\n"); 3946dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer } else { 3956dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer buf[5] = 1; 396d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = odd\n"); 3976dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer } 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3996dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer if (cflag & CMSPAR) { 4006dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer buf[5] = 4; 401d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = space\n"); 4026dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer } else { 4036dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer buf[5] = 2; 404d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = even\n"); 4056dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer } 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[5] = 0; 409d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = none\n"); 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 412372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 413372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, 414372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 0, 0, buf, 7, 100); 415d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "0x21:0x20:0:0 %d\n", i); 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* change control lines if we are switching to or from B0 */ 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&priv->lock, flags); 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control = priv->line_control; 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((cflag & CBAUD) == B0) 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); 422ce5c9851855bab190c9a142761d54ba583ab094cJohan Hovold else if ((old_termios->c_cflag & CBAUD) == B0) 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control |= (CONTROL_DTR | CONTROL_RTS); 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (control != priv->line_control) { 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control = priv->line_control; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&priv->lock, flags); 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_control_lines(serial->dev, control); 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&priv->lock, flags); 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 431372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[0] = buf[1] = buf[2] = buf[3] = buf[4] = buf[5] = buf[6] = 0; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 434372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 435372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, 436372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 0, 0, buf, 7, 100); 437d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x\n", i, 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cflag & CRTSCTS) { 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (priv->type == HX) 442eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp pl2303_vendor_write(0x0, 0x61, serial); 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 444eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp pl2303_vendor_write(0x0, 0x41, serial); 445715f9527c1c1edd1a9c7a55ab4535211279c9374t.sefzick } else { 446eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp pl2303_vendor_write(0x0, 0x0, serial); 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 448572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi 44925b8286805e856c8c7fda127018e31032c918015Frank Schaefer /* Save resulting baud rate */ 450df64c47184aedf34fd2a69a4b7f68584fe982fdfAlan Cox if (baud) 45195da310e66ee8090119596c70ca8432e57f9a97fAlan Cox tty_encode_baud_rate(tty, baud, baud); 452df64c47184aedf34fd2a69a4b7f68584fe982fdfAlan Cox 453572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi kfree(buf); 454572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi} 455572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi 456335f8514f200e63d689113d29cb7253a5c282967Alan Coxstatic void pl2303_dtr_rts(struct usb_serial_port *port, int on) 457335f8514f200e63d689113d29cb7253a5c282967Alan Cox{ 458335f8514f200e63d689113d29cb7253a5c282967Alan Cox struct pl2303_private *priv = usb_get_serial_port_data(port); 459335f8514f200e63d689113d29cb7253a5c282967Alan Cox unsigned long flags; 460335f8514f200e63d689113d29cb7253a5c282967Alan Cox u8 control; 461335f8514f200e63d689113d29cb7253a5c282967Alan Cox 462335f8514f200e63d689113d29cb7253a5c282967Alan Cox spin_lock_irqsave(&priv->lock, flags); 463335f8514f200e63d689113d29cb7253a5c282967Alan Cox /* Change DTR and RTS */ 464335f8514f200e63d689113d29cb7253a5c282967Alan Cox if (on) 465335f8514f200e63d689113d29cb7253a5c282967Alan Cox priv->line_control |= (CONTROL_DTR | CONTROL_RTS); 466335f8514f200e63d689113d29cb7253a5c282967Alan Cox else 467335f8514f200e63d689113d29cb7253a5c282967Alan Cox priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); 468335f8514f200e63d689113d29cb7253a5c282967Alan Cox control = priv->line_control; 469335f8514f200e63d689113d29cb7253a5c282967Alan Cox spin_unlock_irqrestore(&priv->lock, flags); 470335f8514f200e63d689113d29cb7253a5c282967Alan Cox set_control_lines(port->serial->dev, control); 471335f8514f200e63d689113d29cb7253a5c282967Alan Cox} 472335f8514f200e63d689113d29cb7253a5c282967Alan Cox 473335f8514f200e63d689113d29cb7253a5c282967Alan Coxstatic void pl2303_close(struct usb_serial_port *port) 474572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi{ 4758b0127b2082601e40295045414a8318f2c8ee5a0Johan Hovold usb_serial_generic_close(port); 476572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi usb_kill_urb(port->interrupt_in_urb); 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 479a509a7e478e4766114d69f12d19d644ac63e9765Alan Coxstatic int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 481606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox struct ktermios tmp_termios; 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct usb_serial *serial = port->serial; 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv = usb_get_serial_port_data(port); 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int result; 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4861694899fd1af43636351aac97f415fd3c9cefb1dDariusz M if (priv->type != HX) { 4871694899fd1af43636351aac97f415fd3c9cefb1dDariusz M usb_clear_halt(serial->dev, port->write_urb->pipe); 4881694899fd1af43636351aac97f415fd3c9cefb1dDariusz M usb_clear_halt(serial->dev, port->read_urb->pipe); 4893e152505a57db6622deb1322c22551c046e33d16Sarah Sharp } else { 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* reset upstream data pipes */ 491eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp pl2303_vendor_write(8, 0, serial); 492eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp pl2303_vendor_write(9, 0, serial); 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Setup termios */ 49695da310e66ee8090119596c70ca8432e57f9a97fAlan Cox if (tty) 49795da310e66ee8090119596c70ca8432e57f9a97fAlan Cox pl2303_set_termios(tty, port, &tmp_termios); 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 499372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (result) { 501372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi dev_err(&port->dev, "%s - failed submitting interrupt urb," 502441b62c1edb986827154768d89bbac0ba779984fHarvey Harrison " error %d\n", __func__, result); 503db6e9186c90188edea20aaa5161ea073440cc2a1Johan Hovold return result; 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 505d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold 506f5230a53c1d551811b077ccad219105786da1becJohan Hovold result = usb_serial_generic_open(tty, port); 507d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold if (result) { 508d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold usb_kill_urb(port->interrupt_in_urb); 509d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold return result; 510d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold } 511d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold 512335f8514f200e63d689113d29cb7253a5c282967Alan Cox port->port.drain_delay = 256; 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51620b9d17715017ae4dd4ec87fabc36d33b9de708eAlan Coxstatic int pl2303_tiocmset(struct tty_struct *tty, 517372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi unsigned int set, unsigned int clear) 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 51995da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port = tty->driver_data; 5206f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold struct usb_serial *serial = port->serial; 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv = usb_get_serial_port_data(port); 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 control; 5246f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold int ret; 5256fdd8e8e33730a2abc886113bd0b6c4343f63cc9Flavio Leitner 526372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_lock_irqsave(&priv->lock, flags); 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_RTS) 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control |= CONTROL_RTS; 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_DTR) 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control |= CONTROL_DTR; 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_RTS) 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control &= ~CONTROL_RTS; 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_DTR) 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control &= ~CONTROL_DTR; 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control = priv->line_control; 536372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_unlock_irqrestore(&priv->lock, flags); 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5386f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold mutex_lock(&serial->disc_mutex); 5396f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold if (!serial->disconnected) 5406f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold ret = set_control_lines(serial->dev, control); 5416f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold else 5426f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold ret = -ENODEV; 5436f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold mutex_unlock(&serial->disc_mutex); 5446f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold 5456f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold return ret; 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 54860b33c133ca0b7c0b6072c87234b63fee6e80558Alan Coxstatic int pl2303_tiocmget(struct tty_struct *tty) 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 55095da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port = tty->driver_data; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv = usb_get_serial_port_data(port); 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int mcr; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int status; 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int result; 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 557372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_lock_irqsave(&priv->lock, flags); 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mcr = priv->line_control; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = priv->line_status; 560372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_unlock_irqrestore(&priv->lock, flags); 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0) 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0) 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((status & UART_CTS) ? TIOCM_CTS : 0) 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((status & UART_DSR) ? TIOCM_DSR : 0) 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((status & UART_RING) ? TIOCM_RI : 0) 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((status & UART_DCD) ? TIOCM_CD : 0); 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 569d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - result = %x\n", __func__, result); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return result; 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 574335f8514f200e63d689113d29cb7253a5c282967Alan Coxstatic int pl2303_carrier_raised(struct usb_serial_port *port) 575335f8514f200e63d689113d29cb7253a5c282967Alan Cox{ 576335f8514f200e63d689113d29cb7253a5c282967Alan Cox struct pl2303_private *priv = usb_get_serial_port_data(port); 577335f8514f200e63d689113d29cb7253a5c282967Alan Cox if (priv->line_status & UART_DCD) 578335f8514f200e63d689113d29cb7253a5c282967Alan Cox return 1; 579335f8514f200e63d689113d29cb7253a5c282967Alan Cox return 0; 580335f8514f200e63d689113d29cb7253a5c282967Alan Cox} 581335f8514f200e63d689113d29cb7253a5c282967Alan Cox 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int wait_modem_info(struct usb_serial_port *port, unsigned int arg) 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv = usb_get_serial_port_data(port); 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int prevstatus; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int status; 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int changed; 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 590372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_lock_irqsave(&priv->lock, flags); 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prevstatus = priv->line_status; 592372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_unlock_irqrestore(&priv->lock, flags); 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (1) { 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds interruptible_sleep_on(&priv->delta_msr_wait); 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* see if a signal did it */ 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signal_pending(current)) 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ERESTARTSYS; 599372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 600372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_lock_irqsave(&priv->lock, flags); 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = priv->line_status; 602372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_unlock_irqrestore(&priv->lock, flags); 603372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 6043a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox changed = prevstatus ^ status; 605372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((arg & TIOCM_RNG) && (changed & UART_RING)) || 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((arg & TIOCM_DSR) && (changed & UART_DSR)) || 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((arg & TIOCM_CD) && (changed & UART_DCD)) || 6093a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox ((arg & TIOCM_CTS) && (changed & UART_CTS))) { 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prevstatus = status; 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* NOTREACHED */ 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 61800a0d0d65b61241a718d0aee96f46b9a2d93bf26Alan Coxstatic int pl2303_ioctl(struct tty_struct *tty, 619372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi unsigned int cmd, unsigned long arg) 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 62167b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas struct serial_struct ser; 62295da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port = tty->driver_data; 623d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman 624d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s cmd = 0x%04x\n", __func__, cmd); 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 62767b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas case TIOCGSERIAL: 62867b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas memset(&ser, 0, sizeof ser); 62967b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas ser.type = PORT_16654; 63067b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas ser.line = port->serial->minor; 63167b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas ser.port = port->number; 63267b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas ser.baud_base = 460800; 63367b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas 63467b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas if (copy_to_user((void __user *)arg, &ser, sizeof ser)) 63567b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas return -EFAULT; 63667b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas 63767b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas return 0; 63867b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas 6393a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox case TIOCMIWAIT: 640d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__); 6413a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox return wait_modem_info(port, arg); 6423a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox default: 643d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd); 6443a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox break; 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOIOCTLCMD; 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 64995da310e66ee8090119596c70ca8432e57f9a97fAlan Coxstatic void pl2303_break_ctl(struct tty_struct *tty, int break_state) 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 65195da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port = tty->driver_data; 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct usb_serial *serial = port->serial; 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 state; 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int result; 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (break_state == 0) 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state = BREAK_OFF; 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state = BREAK_ON; 660d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - turning break %s\n", __func__, 6613a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox state == BREAK_OFF ? "off" : "on"); 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 663372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 664372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi BREAK_REQUEST, BREAK_REQUEST_TYPE, state, 665372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 0, NULL, 0, 100); 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (result) 667d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_err(&port->dev, "error sending break = %d\n", result); 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 670f9c99bb8b3a1ec81af68d484a551307326c2e933Alan Sternstatic void pl2303_release(struct usb_serial *serial) 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv; 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < serial->num_ports; ++i) { 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv = usb_get_serial_port_data(serial->port[i]); 677684c6e30d389f67ef727c8f5a7b23a09b4cb02e4Johan Hovold kfree(priv); 678372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi } 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 68197bb13ec5bc156352cca8af90080597e04299a73Flavio Leitnerstatic void pl2303_update_line_status(struct usb_serial_port *port, 68297bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner unsigned char *data, 68397bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner unsigned int actual_length) 68497bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner{ 68597bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner 68697bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner struct pl2303_private *priv = usb_get_serial_port_data(port); 687d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek struct tty_struct *tty; 68897bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner unsigned long flags; 68997bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner u8 status_idx = UART_STATE; 69095f209f93663103db2a8fb989e226ac68a98b036Horst Schirmeier u8 length = UART_STATE + 1; 691d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek u8 prev_line_status; 6929c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi u16 idv, idp; 69397bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner 6949c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi idv = le16_to_cpu(port->serial->dev->descriptor.idVendor); 6959c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi idp = le16_to_cpu(port->serial->dev->descriptor.idProduct); 6969c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi 6979c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi 6989c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi if (idv == SIEMENS_VENDOR_ID) { 6999c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi if (idp == SIEMENS_PRODUCT_ID_X65 || 7009c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi idp == SIEMENS_PRODUCT_ID_SX1 || 7019c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi idp == SIEMENS_PRODUCT_ID_X75) { 7029c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi 7039c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi length = 1; 7049c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi status_idx = 0; 7059c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi } 70697bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner } 70797bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner 70897bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner if (actual_length < length) 709a009b75aa0ed55f0bc473c8a3b3e872cbca807ecLuiz Fernando N. Capitulino return; 71097bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner 7113a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox /* Save off the uart status for others to look at */ 71297bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner spin_lock_irqsave(&priv->lock, flags); 713d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek prev_line_status = priv->line_status; 71497bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner priv->line_status = data[status_idx]; 71597bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner spin_unlock_irqrestore(&priv->lock, flags); 716430eb0d27c1b36c5191c16b2472b26137673a8d4Jason Wessel if (priv->line_status & UART_BREAK_ERROR) 717430eb0d27c1b36c5191c16b2472b26137673a8d4Jason Wessel usb_serial_handle_break(port); 718372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi wake_up_interruptible(&priv->delta_msr_wait); 719d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek 720d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek tty = tty_port_tty_get(&port->port); 721d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek if (!tty) 722d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek return; 723d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek if ((priv->line_status ^ prev_line_status) & UART_DCD) 724d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek usb_serial_handle_dcd_change(port, tty, 725d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek priv->line_status & UART_DCD); 726d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek tty_kref_put(tty); 72797bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner} 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7297d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsstatic void pl2303_read_int_callback(struct urb *urb) 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 731cdc97792289179974af6dda781c855696358d307Ming Lei struct usb_serial_port *port = urb->context; 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *data = urb->transfer_buffer; 73397bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner unsigned int actual_length = urb->actual_length; 734461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman int status = urb->status; 735461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman int retval; 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 737461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman switch (status) { 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* success */ 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -ECONNRESET: 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -ENOENT: 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -ESHUTDOWN: 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* this urb is terminated, clean up */ 745d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n", 746d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman __func__, status); 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 749d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n", 750d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman __func__, status); 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit; 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 754441b62c1edb986827154768d89bbac0ba779984fHarvey Harrison usb_serial_debug_data(debug, &port->dev, __func__, 755372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi urb->actual_length, urb->transfer_buffer); 756372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 75797bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner pl2303_update_line_status(port, data, actual_length); 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit: 760461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman retval = usb_submit_urb(urb, GFP_ATOMIC); 761461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman if (retval) 762d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_err(&port->dev, 763372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi "%s - usb_submit_urb failed with result %d\n", 764441b62c1edb986827154768d89bbac0ba779984fHarvey Harrison __func__, retval); 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 767f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovoldstatic void pl2303_process_read_urb(struct urb *urb) 768d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox{ 769f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold struct usb_serial_port *port = urb->context; 770f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold struct pl2303_private *priv = usb_get_serial_port_data(port); 771f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold struct tty_struct *tty; 772d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox unsigned char *data = urb->transfer_buffer; 773d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox char tty_flag = TTY_NORMAL; 774f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold unsigned long flags; 775f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold u8 line_status; 776f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold int i; 777f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold 778f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold /* update line status */ 779f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold spin_lock_irqsave(&priv->lock, flags); 780f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold line_status = priv->line_status; 781f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold priv->line_status &= ~UART_STATE_TRANSIENT_MASK; 782f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold spin_unlock_irqrestore(&priv->lock, flags); 783f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold wake_up_interruptible(&priv->delta_msr_wait); 784f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold 785f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold if (!urb->actual_length) 786f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold return; 787f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold 788f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold tty = tty_port_tty_get(&port->port); 789f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold if (!tty) 790f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold return; 791f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold 792d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox /* break takes precedence over parity, */ 793d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox /* which takes precedence over framing errors */ 794d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox if (line_status & UART_BREAK_ERROR) 795d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox tty_flag = TTY_BREAK; 796d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox else if (line_status & UART_PARITY_ERROR) 797d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox tty_flag = TTY_PARITY; 798d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox else if (line_status & UART_FRAME_ERROR) 799d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox tty_flag = TTY_FRAME; 800d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, tty_flag); 801d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox 802d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox /* overrun is special, not associated with a char */ 803d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox if (line_status & UART_OVERRUN_ERROR) 804d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox tty_insert_flip_char(tty, 0, TTY_OVERRUN); 8059388e2e71a51fab0aa2309bbb45e8a23d89a95a9Johan Hovold 806d45cc8df7f59eb4db28408076ce979cd5e18f2b7Johan Hovold if (port->port.console && port->sysrq) { 807d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox for (i = 0; i < urb->actual_length; ++i) 8086ee9f4b4affe751d313d2538999aeec134d413a6Dmitry Torokhov if (!usb_serial_handle_sysrq_char(port, data[i])) 809d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox tty_insert_flip_char(tty, data[i], tty_flag); 810d45cc8df7f59eb4db28408076ce979cd5e18f2b7Johan Hovold } else { 811d45cc8df7f59eb4db28408076ce979cd5e18f2b7Johan Hovold tty_insert_flip_string_fixed_flag(tty, data, tty_flag, 812d45cc8df7f59eb4db28408076ce979cd5e18f2b7Johan Hovold urb->actual_length); 8139388e2e71a51fab0aa2309bbb45e8a23d89a95a9Johan Hovold } 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 815f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold tty_flip_buffer_push(tty); 8164a90f09b20f4622dcbff1f0e1e6bae1704f8ad8cAlan Cox tty_kref_put(tty); 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 819572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi/* All of the device info needed for the PL2303 SIO serial converter */ 820572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesistatic struct usb_serial_driver pl2303_device = { 821572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .driver = { 822572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .owner = THIS_MODULE, 823572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .name = "pl2303", 824572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi }, 825572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .id_table = id_table, 826572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .num_ports = 1, 8277919c2fd9e07276403b9a4d9ae52305e0d70f923Johan Hovold .bulk_in_size = 256, 8283efeaff6298290b36499532f0b4c87aa4bae8aefJohan Hovold .bulk_out_size = 256, 829572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .open = pl2303_open, 830572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .close = pl2303_close, 831335f8514f200e63d689113d29cb7253a5c282967Alan Cox .dtr_rts = pl2303_dtr_rts, 832335f8514f200e63d689113d29cb7253a5c282967Alan Cox .carrier_raised = pl2303_carrier_raised, 833572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .ioctl = pl2303_ioctl, 834572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .break_ctl = pl2303_break_ctl, 835572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .set_termios = pl2303_set_termios, 836572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .tiocmget = pl2303_tiocmget, 837572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .tiocmset = pl2303_tiocmset, 838f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold .process_read_urb = pl2303_process_read_urb, 839572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .read_int_callback = pl2303_read_int_callback, 840572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .attach = pl2303_startup, 841f9c99bb8b3a1ec81af68d484a551307326c2e933Alan Stern .release = pl2303_release, 842572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi}; 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 844f667ddad41e303ebc2c6d5bf3105dffe2fbdd717Alan Sternstatic struct usb_serial_driver * const serial_drivers[] = { 845f667ddad41e303ebc2c6d5bf3105dffe2fbdd717Alan Stern &pl2303_device, NULL 846f667ddad41e303ebc2c6d5bf3105dffe2fbdd717Alan Stern}; 847f667ddad41e303ebc2c6d5bf3105dffe2fbdd717Alan Stern 848d1cddb4a8e9b09c33158acae05c48069d74fa4d0Greg KHmodule_usb_serial_driver(pl2303_driver, serial_drivers); 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION(DRIVER_DESC); 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(debug, bool, S_IRUGO | S_IWUSR); 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(debug, "Debug enabled or not"); 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 856