pl2303.c revision a6ec8245bf09fd51a0561ff372a12473b48d269b
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#include <linux/kernel.h> 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_driver.h> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_flip.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/serial.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/moduleparam.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/spinlock.h> 283a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox#include <linux/uaccess.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/usb.h> 30a969888ce91673c7f4b86520d851a6f0d5a5fa7dGreg Kroah-Hartman#include <linux/usb/serial.h> 31b2d6d98fc71bb94ada78d433f26a93498802d3f8Johan Hovold#include <asm/unaligned.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "pl2303.h" 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 347d40d7e85a25e01948bcb4dc3eda1355af318337Németh Mártonstatic const struct usb_device_id id_table[] = { 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) }, 373d861494729c70d9ebeb7d93caa107897925c355Peter Moulder { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_DCU11) }, 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ3) }, 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_PHAROS) }, 40b483b6aaa56f0db72fa50e85b6499a32d82009bfMax Arnold { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ALDIGA) }, 414be2fa186d54758296d30c565d7b5111dd45b000Steve Murphy { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MMX) }, 42727df3569b358ef440683787c2b9fe8cc55a0954Greg Kroah-Hartman { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GPRS) }, 4318344a1cd5889d48dac67229fcf024ed300030d5Simone Contini { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) }, 4496a3e79edff6f41b0f115a82f1a39d66218077a7Dario Lombardo { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) }, 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, 468a28dea3accda319d51a1bf4d3e280771d946f78Masakazu Mokuno { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) }, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) }, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) }, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID_UCSGT) }, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID) }, 5258381719845d9ee19a321c2eb69cfa9b7886be9aWang Jun { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID_2080) }, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) }, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) }, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) }, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) }, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) }, 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) }, 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_ID) }, 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_ID) }, 61a8310f3b8b713e52d77c56d4b8865685ee40d02aLuiz Fernando Capitulino { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_SX1) }, 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X65) }, 63a8310f3b8b713e52d77c56d4b8865685ee40d02aLuiz Fernando Capitulino { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X75) }, 64e7beb667842ad0f6ec95a22e7c88e71dfbd60649Andreas Loibl { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_EF81) }, 65912299f6f0587bb6c221705ed9949709b36b3c56Alan Cox { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_ID_S81) }, /* Benq/Siemens S81 */ 66acbb36f116243bed515357264ecbb6ff9c6d2a5bPeter Favrholdt { USB_DEVICE(SYNTECH_VENDOR_ID, SYNTECH_PRODUCT_ID) }, 67c6c27721a42b991965bb792d5c196b8331d008d5Christian Lindner { USB_DEVICE(NOKIA_CA42_VENDOR_ID, NOKIA_CA42_PRODUCT_ID) }, 68c6c27721a42b991965bb792d5c196b8331d008d5Christian Lindner { USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) }, 696cceb05f8df6e28ab90f44bdeba50d33928cdee5Denis MONTERRAT { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) }, 70c6c27721a42b991965bb792d5c196b8331d008d5Christian Lindner { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) }, 71491b04ce1c9adfa0cd73f095086f3c37da81b667Dick Streefland { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, 723b92847425a98d26ad9d2b8682d3ce6020c90752Matthew Meno { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) }, 73b7aa94b682dc6b6dcdc01d36f8e65cef5aae81e2Kim Oldfield { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) }, 748fd801339350b63cbb90730ff8b2be349fb3dc67Johannes Steingraeber { USB_DEVICE(ALCOR_VENDOR_ID, ALCOR_PRODUCT_ID) }, 752d94b981c7fcb0fba4aa3442cd180066dbedbbc8YOSHIFUJI Hideaki { USB_DEVICE(WS002IN_VENDOR_ID, WS002IN_PRODUCT_ID) }, 769e3285dba5cac12d656da66fd7d420ff1bc0ecc0Magnus Damm { USB_DEVICE(COREGA_VENDOR_ID, COREGA_PRODUCT_ID) }, 77cc311ee7d29d96f0bf15599f4456012d6f5ea23cDamien Stuart { USB_DEVICE(YCCABLE_VENDOR_ID, YCCABLE_PRODUCT_ID) }, 787c99200142c04d0f1ed3f048014591f841efdaedMatthew Arnold { USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) }, 79af4b8514aafd53d97b05a0a30b7d4cfd2cbb7b81Mike Provencher { USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) }, 808540d66615c39010168ab97eaafb476ec2851298Gianpaolo Cugola { USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) }, 81f36ecd5de93e4c85a9e3d25100c6e233155b12e5Jef Driesen { USB_DEVICE(ZEAGLE_VENDOR_ID, ZEAGLE_N2ITION3_PRODUCT_ID) }, 8249276560c9004fce24c42e3c0ad75f34d956fc63Khanh-Dang Nguyen Thu Lam { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, 8335904e6b5106fda51b04c8b8080c04466865415fPawel Ludwikow { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) }, 849a61d72602771906e11a5944e8571f8006387b39Manuel Jander { USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) }, 85598f0b703506da841d3459dc0c48506be14d1778Eric Benoit { USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) }, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } /* Terminating entry */ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 89372db8a780f63368c6960a167b7a19aad776d704Thiago GalesiMODULE_DEVICE_TABLE(usb, id_table); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SET_LINE_REQUEST_TYPE 0x21 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SET_LINE_REQUEST 0x20 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SET_CONTROL_REQUEST_TYPE 0x21 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SET_CONTROL_REQUEST 0x22 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CONTROL_DTR 0x01 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CONTROL_RTS 0x02 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BREAK_REQUEST_TYPE 0x21 1003a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox#define BREAK_REQUEST 0x23 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BREAK_ON 0xffff 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BREAK_OFF 0x0000 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GET_LINE_REQUEST_TYPE 0xa1 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GET_LINE_REQUEST 0x21 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VENDOR_WRITE_REQUEST_TYPE 0x40 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VENDOR_WRITE_REQUEST 0x01 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VENDOR_READ_REQUEST_TYPE 0xc0 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VENDOR_READ_REQUEST 0x01 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_STATE 0x08 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_STATE_TRANSIENT_MASK 0x74 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_DCD 0x01 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_DSR 0x02 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_BREAK_ERROR 0x04 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_RING 0x08 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_FRAME_ERROR 0x10 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_PARITY_ERROR 0x20 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_OVERRUN_ERROR 0x40 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define UART_CTS 0x80 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum pl2303_type { 126e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman type_0, /* don't know the difference between type 0 and */ 127e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman type_1, /* type 1, until someone from prolific tells us... */ 128e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman HX, /* HX version of the pl2303 chip */ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1318bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovoldstruct pl2303_serial_private { 1328bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold enum pl2303_type type; 1338bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold}; 1348bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct pl2303_private { 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t lock; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 line_control; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 line_status; 139623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold 140623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold u8 line_settings[7]; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 143362eb02603be7bb835c47f2cf585954a5080449dJohan Hovoldstatic int pl2303_vendor_read(struct usb_serial *serial, u16 value, 144362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold unsigned char buf[1]) 145eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp{ 146362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold struct device *dev = &serial->interface->dev; 147ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold int res; 148ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 149ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 150eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, 151362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold value, 0, buf, 1, 100); 152362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold if (res != 1) { 153362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold dev_err(dev, "%s - failed to read [%04x]: %d\n", __func__, 154362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold value, res); 155362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold if (res >= 0) 156362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold res = -EIO; 157362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold 158362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold return res; 159362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold } 160ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 161362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold dev_dbg(dev, "%s - [%04x] = %02x\n", __func__, value, buf[0]); 162ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 163362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold return 0; 164eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp} 165eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp 166362eb02603be7bb835c47f2cf585954a5080449dJohan Hovoldstatic int pl2303_vendor_write(struct usb_serial *serial, u16 value, u16 index) 167eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp{ 168362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold struct device *dev = &serial->interface->dev; 169ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold int res; 170ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 171362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold dev_dbg(dev, "%s - [%04x] = %02x\n", __func__, value, index); 172362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold 173ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 174eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, 175eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp value, index, NULL, 0, 100); 176362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold if (res) { 177362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold dev_err(dev, "%s - failed to write [%04x]: %d\n", __func__, 178362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold value, res); 179362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold return res; 180362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold } 181ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 182362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold return 0; 183eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp} 184eb44da0b3aa0105cb38d81c5747a8feae64834beSarah Sharp 185372db8a780f63368c6960a167b7a19aad776d704Thiago Galesistatic int pl2303_startup(struct usb_serial *serial) 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1878bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold struct pl2303_serial_private *spriv; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum pl2303_type type = type_0; 1893e152505a57db6622deb1322c22551c046e33d16Sarah Sharp unsigned char *buf; 1908bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 1918bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold spriv = kzalloc(sizeof(*spriv), GFP_KERNEL); 1928bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold if (!spriv) 1938bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold return -ENOMEM; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 195362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold buf = kmalloc(1, GFP_KERNEL); 1968bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold if (!buf) { 1978bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold kfree(spriv); 1983e152505a57db6622deb1322c22551c046e33d16Sarah Sharp return -ENOMEM; 1998bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold } 2003e152505a57db6622deb1322c22551c046e33d16Sarah Sharp 201b52e111363e366202386f3e67f71681dbbb8e5d9Greg Kroah-Hartman if (serial->dev->descriptor.bDeviceClass == 0x02) 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = type_0; 203b52e111363e366202386f3e67f71681dbbb8e5d9Greg Kroah-Hartman else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) 204e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman type = HX; 205281393ad0bcfc309434d2bff38abc15805c2cbc4Greg Kroah-Hartman else if (serial->dev->descriptor.bDeviceClass == 0x00) 206281393ad0bcfc309434d2bff38abc15805c2cbc4Greg Kroah-Hartman type = type_1; 207281393ad0bcfc309434d2bff38abc15805c2cbc4Greg Kroah-Hartman else if (serial->dev->descriptor.bDeviceClass == 0xFF) 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = type_1; 209b52e111363e366202386f3e67f71681dbbb8e5d9Greg Kroah-Hartman dev_dbg(&serial->interface->dev, "device type: %d\n", type); 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2118bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold spriv->type = type; 2128bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold usb_set_serial_data(serial, spriv); 2133e152505a57db6622deb1322c22551c046e33d16Sarah Sharp 214362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_read(serial, 0x8484, buf); 215362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 0x0404, 0); 216362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_read(serial, 0x8484, buf); 217362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_read(serial, 0x8383, buf); 218362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_read(serial, 0x8484, buf); 219362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 0x0404, 1); 220362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_read(serial, 0x8484, buf); 221362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_read(serial, 0x8383, buf); 222362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 0, 1); 223362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 1, 0); 224e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman if (type == HX) 225362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 2, 0x44); 226e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman else 227362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 2, 0x24); 2283e152505a57db6622deb1322c22551c046e33d16Sarah Sharp 2293e152505a57db6622deb1322c22551c046e33d16Sarah Sharp kfree(buf); 230ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2328bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold} 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2348bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovoldstatic void pl2303_release(struct usb_serial *serial) 2358bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold{ 236ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold struct pl2303_serial_private *spriv = usb_get_serial_data(serial); 2378bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 2388bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold kfree(spriv); 2398bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold} 2408bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 2418bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovoldstatic int pl2303_port_probe(struct usb_serial_port *port) 2428bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold{ 2438bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold struct pl2303_private *priv; 2448bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 2458bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold priv = kzalloc(sizeof(*priv), GFP_KERNEL); 2468bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold if (!priv) 2478bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold return -ENOMEM; 2488bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 2498bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold spin_lock_init(&priv->lock); 2508bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 2518bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold usb_set_serial_port_data(port, priv); 2528bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 253d7be62211125c85fa1dd796e92aadce84961a502Johan Hovold port->port.drain_delay = 256; 254d7be62211125c85fa1dd796e92aadce84961a502Johan Hovold 2558bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold return 0; 2568bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold} 2578bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 2588bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovoldstatic int pl2303_port_remove(struct usb_serial_port *port) 2598bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold{ 260ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold struct pl2303_private *priv = usb_get_serial_port_data(port); 2618bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 2628bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold kfree(priv); 2638bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold 2648bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold return 0; 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 267f45d0a5aa593cdf48a37489fc61c145e16964288Johan Hovoldstatic int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 269f45d0a5aa593cdf48a37489fc61c145e16964288Johan Hovold struct usb_device *dev = port->serial->dev; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 2713a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox 272a6ec8245bf09fd51a0561ff372a12473b48d269bJohan Hovold dev_dbg(&port->dev, "%s - %02x\n", __func__, value); 273a6ec8245bf09fd51a0561ff372a12473b48d269bJohan Hovold 274372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 275372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, 276372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi value, 0, NULL, 0, 100); 277a6ec8245bf09fd51a0561ff372a12473b48d269bJohan Hovold if (retval) 278a6ec8245bf09fd51a0561ff372a12473b48d269bJohan Hovold dev_err(&port->dev, "%s - failed: %d\n", __func__, retval); 279ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28315e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovoldstatic void pl2303_encode_baudrate(struct tty_struct *tty, 28415e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold struct usb_serial_port *port, 28515e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold u8 buf[4]) 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2877e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, 2887e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman 4800, 7200, 9600, 14400, 19200, 28800, 38400, 2897e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman 57600, 115200, 230400, 460800, 500000, 614400, 2907e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman 921600, 1228800, 2457600, 3000000, 6000000 }; 2917e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman 292692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman struct usb_serial *serial = port->serial; 293692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman struct pl2303_serial_private *spriv = usb_get_serial_data(serial); 29415e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold int baud; 2957e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman int i; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2977e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman /* 2987e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman * NOTE: Only the values defined in baud_sup are supported! 2997e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman * => if unsupported values are set, the PL2303 seems to use 3007e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman * 9600 baud (at least my PL2303X always does) 3017e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman */ 30295da310e66ee8090119596c70ca8432e57f9a97fAlan Cox baud = tty_get_baud_rate(tty); 303d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "baud requested = %d\n", baud); 304b2d6d98fc71bb94ada78d433f26a93498802d3f8Johan Hovold if (!baud) 305b2d6d98fc71bb94ada78d433f26a93498802d3f8Johan Hovold return; 306692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman 3077e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman /* Set baudrate to nearest supported value */ 3087e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman for (i = 0; i < ARRAY_SIZE(baud_sup); ++i) { 3097e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman if (baud_sup[i] > baud) 3107e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman break; 3117e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman } 312692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman 3137e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman if (i == ARRAY_SIZE(baud_sup)) 3147e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman baud = baud_sup[i - 1]; 3157e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman else if (i > 0 && (baud_sup[i] - baud) > (baud - baud_sup[i - 1])) 3167e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman baud = baud_sup[i - 1]; 3177e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman else 3187e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman baud = baud_sup[i]; 319692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman 3207e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman /* type_0, type_1 only support up to 1228800 baud */ 3217e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman if (spriv->type != HX) 3227e12a6fcbf266eb0d5b19761f91b2964ad18e371Greg Kroah-Hartman baud = min_t(int, baud, 1228800); 323692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman 32454dc5792ea933a3ff8c62a1f9ea9e4e6cbdd324aGreg Kroah-Hartman if (baud <= 115200) { 325692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman put_unaligned_le32(baud, buf); 326692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman } else { 327692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman /* 3281796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman * Apparently the formula for higher speeds is: 3291796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman * baudrate = 12M * 32 / (2^buf[1]) / buf[0] 330692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman */ 3311796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman unsigned tmp = 12000000 * 32 / baud; 3321796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman buf[3] = 0x80; 333692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman buf[2] = 0; 3341796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman buf[1] = (tmp >= 256); 3351796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman while (tmp >= 256) { 3361796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman tmp >>= 2; 3371796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman buf[1] <<= 1; 3381796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman } 3391796a228762cd0b86e14d6d4a3de9ecfe65b3b8dGreg Kroah-Hartman buf[0] = tmp; 340692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman } 341692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman 34215e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold /* Save resulting baud rate */ 343b2d6d98fc71bb94ada78d433f26a93498802d3f8Johan Hovold tty_encode_baud_rate(tty, baud, baud); 344b2d6d98fc71bb94ada78d433f26a93498802d3f8Johan Hovold dev_dbg(&port->dev, "baud set = %d\n", baud); 34515e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold} 34615e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold 34715e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovoldstatic void pl2303_set_termios(struct tty_struct *tty, 34815e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold struct usb_serial_port *port, struct ktermios *old_termios) 34915e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold{ 35015e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold struct usb_serial *serial = port->serial; 35115e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold struct pl2303_serial_private *spriv = usb_get_serial_data(serial); 35215e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold struct pl2303_private *priv = usb_get_serial_port_data(port); 35315e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold unsigned long flags; 35415e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold unsigned char *buf; 35515e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold int i; 35615e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold u8 control; 35715e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold 35815e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios)) 35915e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold return; 36015e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold 36115e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold buf = kzalloc(7, GFP_KERNEL); 36215e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold if (!buf) { 36315e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold /* Report back no change occurred */ 36415e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold if (old_termios) 36515e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold tty->termios = *old_termios; 36615e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold return; 36715e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold } 36815e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold 36915e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 37015e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, 37115e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold 0, 0, buf, 7, 100); 37215e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %7ph\n", i, buf); 37315e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold 374a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner switch (C_CSIZE(tty)) { 375a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner case CS5: 376a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner buf[6] = 5; 377a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner break; 378a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner case CS6: 379a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner buf[6] = 6; 380a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner break; 381a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner case CS7: 382a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner buf[6] = 7; 383a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner break; 384a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner default: 385a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner case CS8: 386a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner buf[6] = 8; 38715e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold } 388a313249937820f8b1996133fc285efbd6aad2c5bColin Leitner dev_dbg(&port->dev, "data bits = %d\n", buf[6]); 38915e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold 390692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman /* For reference buf[0]:buf[3] baud rate value */ 391692ed4ddf0010dd643d38d6ef1a15bf64a7fbc6dGreg Kroah-Hartman pl2303_encode_baudrate(tty, port, &buf[0]); 39215e7cead1ed89d445cf86c75a72368e98a7a9039Johan Hovold 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[4]=0 is 1 stop bits */ 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[4]=1 is 1.5 stop bits */ 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[4]=2 is 2 stop bits */ 39687265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold if (C_CSTOPB(tty)) { 39787265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold /* 39887265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold * NOTE: Comply with "real" UARTs / RS232: 39929cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer * use 1.5 instead of 2 stop bits with 5 data bits 40029cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer */ 40187265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold if (C_CSIZE(tty) == CS5) { 40229cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer buf[4] = 1; 403d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "stop bits = 1.5\n"); 40429cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer } else { 40529cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer buf[4] = 2; 406d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "stop bits = 2\n"); 40729cf1b72f34519413b3fafbccc9ac776eb948edeFrank Schaefer } 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[4] = 0; 410d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "stop bits = 1\n"); 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 41387265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold if (C_PARENB(tty)) { 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=0 is none parity */ 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=1 is odd parity */ 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=2 is even parity */ 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=3 is mark parity */ 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* For reference buf[5]=4 is space parity */ 41987265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold if (C_PARODD(tty)) { 42087265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold if (tty->termios.c_cflag & CMSPAR) { 4216dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer buf[5] = 3; 422d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = mark\n"); 4236dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer } else { 4246dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer buf[5] = 1; 425d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = odd\n"); 4266dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer } 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 42887265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold if (tty->termios.c_cflag & CMSPAR) { 4296dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer buf[5] = 4; 430d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = space\n"); 4316dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer } else { 4326dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer buf[5] = 2; 433d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = even\n"); 4346dd81b45fd7628f3eb308f387aee696366718f25Frank Schaefer } 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[5] = 0; 438d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "parity = none\n"); 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 441623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold /* 442623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * Some PL2303 are known to lose bytes if you change serial settings 443623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * even to the same values as before. Thus we actually need to filter 444623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * in this specific case. 445623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * 446623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * Note that the tty_termios_hw_change check above is not sufficient 447623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * as a previously requested baud rate may differ from the one 448623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * actually used (and stored in old_termios). 449623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * 450623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * NOTE: No additional locking needed for line_settings as it is 451623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold * only used in set_termios, which is serialised against itself. 452623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold */ 453623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold if (!old_termios || memcmp(buf, priv->line_settings, 7)) { 454623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold i = usb_control_msg(serial->dev, 455623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold usb_sndctrlpipe(serial->dev, 0), 456623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, 457623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold 0, 0, buf, 7, 100); 458623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold 459623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold dev_dbg(&port->dev, "0x21:0x20:0:0 %d\n", i); 460623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold 461623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold if (i == 7) 462623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold memcpy(priv->line_settings, buf, 7); 463623c8263376c0b8a4b0c220232e7313d762cd0ccJohan Hovold } 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* change control lines if we are switching to or from B0 */ 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&priv->lock, flags); 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control = priv->line_control; 46887265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold if (C_BAUD(tty) == B0) 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); 4702d8f4447b58bba5f8cb895c07690434c02307eafJohan Hovold else if (old_termios && (old_termios->c_cflag & CBAUD) == B0) 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control |= (CONTROL_DTR | CONTROL_RTS); 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (control != priv->line_control) { 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control = priv->line_control; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&priv->lock, flags); 475f45d0a5aa593cdf48a37489fc61c145e16964288Johan Hovold pl2303_set_control_lines(port, control); 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&priv->lock, flags); 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 479372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 48087265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold memset(buf, 0, 7); 481372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 482372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, 483372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 0, 0, buf, 7, 100); 484715cf92aeb061c47f7170d0d7899311b7597bc66Andy Shevchenko dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %7ph\n", i, buf); 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 48687265b4514f5a0b79efdccdcb1c6331285652640Johan Hovold if (C_CRTSCTS(tty)) { 487e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman if (spriv->type == HX) 488362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 0x0, 0x61); 489e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman else 490362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 0x0, 0x41); 491715f9527c1c1edd1a9c7a55ab4535211279c9374t.sefzick } else { 492362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 0x0, 0x0); 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 494572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi 495572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi kfree(buf); 496572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi} 497572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi 498335f8514f200e63d689113d29cb7253a5c282967Alan Coxstatic void pl2303_dtr_rts(struct usb_serial_port *port, int on) 499335f8514f200e63d689113d29cb7253a5c282967Alan Cox{ 500335f8514f200e63d689113d29cb7253a5c282967Alan Cox struct pl2303_private *priv = usb_get_serial_port_data(port); 501335f8514f200e63d689113d29cb7253a5c282967Alan Cox unsigned long flags; 502335f8514f200e63d689113d29cb7253a5c282967Alan Cox u8 control; 503335f8514f200e63d689113d29cb7253a5c282967Alan Cox 504335f8514f200e63d689113d29cb7253a5c282967Alan Cox spin_lock_irqsave(&priv->lock, flags); 505335f8514f200e63d689113d29cb7253a5c282967Alan Cox if (on) 506335f8514f200e63d689113d29cb7253a5c282967Alan Cox priv->line_control |= (CONTROL_DTR | CONTROL_RTS); 507335f8514f200e63d689113d29cb7253a5c282967Alan Cox else 508335f8514f200e63d689113d29cb7253a5c282967Alan Cox priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); 509335f8514f200e63d689113d29cb7253a5c282967Alan Cox control = priv->line_control; 510335f8514f200e63d689113d29cb7253a5c282967Alan Cox spin_unlock_irqrestore(&priv->lock, flags); 511ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 512f45d0a5aa593cdf48a37489fc61c145e16964288Johan Hovold pl2303_set_control_lines(port, control); 513335f8514f200e63d689113d29cb7253a5c282967Alan Cox} 514335f8514f200e63d689113d29cb7253a5c282967Alan Cox 515335f8514f200e63d689113d29cb7253a5c282967Alan Coxstatic void pl2303_close(struct usb_serial_port *port) 516572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi{ 5178b0127b2082601e40295045414a8318f2c8ee5a0Johan Hovold usb_serial_generic_close(port); 518572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi usb_kill_urb(port->interrupt_in_urb); 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 521a509a7e478e4766114d69f12d19d644ac63e9765Alan Coxstatic int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct usb_serial *serial = port->serial; 5248bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold struct pl2303_serial_private *spriv = usb_get_serial_data(serial); 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int result; 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 527e8bbd5c42b65b662756d67290a5c4dcda1abc596Greg Kroah-Hartman if (spriv->type != HX) { 5281694899fd1af43636351aac97f415fd3c9cefb1dDariusz M usb_clear_halt(serial->dev, port->write_urb->pipe); 5291694899fd1af43636351aac97f415fd3c9cefb1dDariusz M usb_clear_halt(serial->dev, port->read_urb->pipe); 5303e152505a57db6622deb1322c22551c046e33d16Sarah Sharp } else { 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* reset upstream data pipes */ 532362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 8, 0); 533362eb02603be7bb835c47f2cf585954a5080449dJohan Hovold pl2303_vendor_write(serial, 9, 0); 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Setup termios */ 53795da310e66ee8090119596c70ca8432e57f9a97fAlan Cox if (tty) 5382d8f4447b58bba5f8cb895c07690434c02307eafJohan Hovold pl2303_set_termios(tty, port, NULL); 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 540372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (result) { 542ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold dev_err(&port->dev, "failed to submit interrupt urb: %d\n", 543ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold result); 544db6e9186c90188edea20aaa5161ea073440cc2a1Johan Hovold return result; 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 546d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold 547f5230a53c1d551811b077ccad219105786da1becJohan Hovold result = usb_serial_generic_open(tty, port); 548d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold if (result) { 549d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold usb_kill_urb(port->interrupt_in_urb); 550d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold return result; 551d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold } 552d4691c3fa3d371835b1eacb39066ab113c4b9d8cJohan Hovold 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 55620b9d17715017ae4dd4ec87fabc36d33b9de708eAlan Coxstatic int pl2303_tiocmset(struct tty_struct *tty, 557372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi unsigned int set, unsigned int clear) 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 55995da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port = tty->driver_data; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv = usb_get_serial_port_data(port); 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 control; 5636f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold int ret; 5646fdd8e8e33730a2abc886113bd0b6c4343f63cc9Flavio Leitner 565372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_lock_irqsave(&priv->lock, flags); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_RTS) 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control |= CONTROL_RTS; 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_DTR) 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control |= CONTROL_DTR; 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_RTS) 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control &= ~CONTROL_RTS; 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_DTR) 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds priv->line_control &= ~CONTROL_DTR; 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control = priv->line_control; 575372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_unlock_irqrestore(&priv->lock, flags); 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5775ddbb26b8b571231cace9f013b2d0ae66229b316Johan Hovold ret = pl2303_set_control_lines(port, control); 5785ddbb26b8b571231cace9f013b2d0ae66229b316Johan Hovold if (ret) 5795ddbb26b8b571231cace9f013b2d0ae66229b316Johan Hovold return usb_translate_errors(ret); 5806f1efd6c5aa63ddcfe1ffc60ade716f5421766f4Johan Hovold 5815ddbb26b8b571231cace9f013b2d0ae66229b316Johan Hovold return 0; 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 58460b33c133ca0b7c0b6072c87234b63fee6e80558Alan Coxstatic int pl2303_tiocmget(struct tty_struct *tty) 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 58695da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port = tty->driver_data; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv = usb_get_serial_port_data(port); 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int mcr; 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int status; 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int result; 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 593372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_lock_irqsave(&priv->lock, flags); 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mcr = priv->line_control; 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = priv->line_status; 596372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_unlock_irqrestore(&priv->lock, flags); 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0) 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0) 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((status & UART_CTS) ? TIOCM_CTS : 0) 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((status & UART_DSR) ? TIOCM_DSR : 0) 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((status & UART_RING) ? TIOCM_RI : 0) 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((status & UART_DCD) ? TIOCM_CD : 0); 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 605d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - result = %x\n", __func__, result); 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return result; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 610335f8514f200e63d689113d29cb7253a5c282967Alan Coxstatic int pl2303_carrier_raised(struct usb_serial_port *port) 611335f8514f200e63d689113d29cb7253a5c282967Alan Cox{ 612335f8514f200e63d689113d29cb7253a5c282967Alan Cox struct pl2303_private *priv = usb_get_serial_port_data(port); 613ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 614335f8514f200e63d689113d29cb7253a5c282967Alan Cox if (priv->line_status & UART_DCD) 615335f8514f200e63d689113d29cb7253a5c282967Alan Cox return 1; 616ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 617335f8514f200e63d689113d29cb7253a5c282967Alan Cox return 0; 618335f8514f200e63d689113d29cb7253a5c282967Alan Cox} 619335f8514f200e63d689113d29cb7253a5c282967Alan Cox 620824d11bef5540062d17380c65ee52d4b2948ca84Johan Hovoldstatic int pl2303_tiocmiwait(struct tty_struct *tty, unsigned long arg) 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 622824d11bef5540062d17380c65ee52d4b2948ca84Johan Hovold struct usb_serial_port *port = tty->driver_data; 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pl2303_private *priv = usb_get_serial_port_data(port); 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int prevstatus; 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int status; 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int changed; 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 629372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_lock_irqsave(&priv->lock, flags); 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prevstatus = priv->line_status; 631372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_unlock_irqrestore(&priv->lock, flags); 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (1) { 6346d0cad657a133818038683120fff9c5c5f8dc751Johan Hovold interruptible_sleep_on(&port->port.delta_msr_wait); 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* see if a signal did it */ 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signal_pending(current)) 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ERESTARTSYS; 638372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 63940509ca982c00c4b70fc00be887509feca0bff15Johan Hovold if (port->serial->disconnected) 64040509ca982c00c4b70fc00be887509feca0bff15Johan Hovold return -EIO; 64140509ca982c00c4b70fc00be887509feca0bff15Johan Hovold 642372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_lock_irqsave(&priv->lock, flags); 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = priv->line_status; 644372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi spin_unlock_irqrestore(&priv->lock, flags); 645372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 6463a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox changed = prevstatus ^ status; 647372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((arg & TIOCM_RNG) && (changed & UART_RING)) || 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((arg & TIOCM_DSR) && (changed & UART_DSR)) || 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((arg & TIOCM_CD) && (changed & UART_DCD)) || 6513a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox ((arg & TIOCM_CTS) && (changed & UART_CTS))) { 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prevstatus = status; 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* NOTREACHED */ 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 66000a0d0d65b61241a718d0aee96f46b9a2d93bf26Alan Coxstatic int pl2303_ioctl(struct tty_struct *tty, 661372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi unsigned int cmd, unsigned long arg) 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 66367b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas struct serial_struct ser; 66495da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port = tty->driver_data; 665d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 66767b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas case TIOCGSERIAL: 66867b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas memset(&ser, 0, sizeof ser); 66967b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas ser.type = PORT_16654; 670e5b1e2062e0535e8ffef79bb34d857e21380d101Greg Kroah-Hartman ser.line = port->minor; 6711143832eca8f1d64da7d85642c956ae9d25c69e1Greg Kroah-Hartman ser.port = port->port_number; 67267b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas ser.baud_base = 460800; 67367b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas 67467b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas if (copy_to_user((void __user *)arg, &ser, sizeof ser)) 67567b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas return -EFAULT; 67667b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas 67767b9946dd07eeef8188e4cab816d2c370bcaa7b2John Tsiombikas return 0; 6783a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox default: 6793a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox break; 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 681ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOIOCTLCMD; 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 68595da310e66ee8090119596c70ca8432e57f9a97fAlan Coxstatic void pl2303_break_ctl(struct tty_struct *tty, int break_state) 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 68795da310e66ee8090119596c70ca8432e57f9a97fAlan Cox struct usb_serial_port *port = tty->driver_data; 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct usb_serial *serial = port->serial; 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 state; 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int result; 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (break_state == 0) 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state = BREAK_OFF; 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state = BREAK_ON; 696ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 697d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - turning break %s\n", __func__, 6983a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox state == BREAK_OFF ? "off" : "on"); 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 700372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 701372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi BREAK_REQUEST, BREAK_REQUEST_TYPE, state, 702372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 0, NULL, 0, 100); 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (result) 704d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_err(&port->dev, "error sending break = %d\n", result); 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 70797bb13ec5bc156352cca8af90080597e04299a73Flavio Leitnerstatic void pl2303_update_line_status(struct usb_serial_port *port, 70897bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner unsigned char *data, 70997bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner unsigned int actual_length) 71097bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner{ 71197bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner struct pl2303_private *priv = usb_get_serial_port_data(port); 712d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek struct tty_struct *tty; 71397bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner unsigned long flags; 71497bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner u8 status_idx = UART_STATE; 71595f209f93663103db2a8fb989e226ac68a98b036Horst Schirmeier u8 length = UART_STATE + 1; 716d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek u8 prev_line_status; 7179c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi u16 idv, idp; 71897bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner 7199c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi idv = le16_to_cpu(port->serial->dev->descriptor.idVendor); 7209c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi idp = le16_to_cpu(port->serial->dev->descriptor.idProduct); 7219c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi 7229c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi if (idv == SIEMENS_VENDOR_ID) { 7239c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi if (idp == SIEMENS_PRODUCT_ID_X65 || 7249c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi idp == SIEMENS_PRODUCT_ID_SX1 || 7259c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi idp == SIEMENS_PRODUCT_ID_X75) { 7269c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi length = 1; 7279c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi status_idx = 0; 7289c53761681497d598a31ed2f6b29b5b3480c49dbThiago Galesi } 72997bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner } 73097bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner 73197bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner if (actual_length < length) 732a009b75aa0ed55f0bc473c8a3b3e872cbca807ecLuiz Fernando N. Capitulino return; 73397bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner 7343a0f43e9deffd9619ac34e3b6b9ba7089aa1e511Alan Cox /* Save off the uart status for others to look at */ 73597bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner spin_lock_irqsave(&priv->lock, flags); 736d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek prev_line_status = priv->line_status; 73797bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner priv->line_status = data[status_idx]; 73897bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner spin_unlock_irqrestore(&priv->lock, flags); 739ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 740430eb0d27c1b36c5191c16b2472b26137673a8d4Jason Wessel if (priv->line_status & UART_BREAK_ERROR) 741430eb0d27c1b36c5191c16b2472b26137673a8d4Jason Wessel usb_serial_handle_break(port); 742ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold 7436d0cad657a133818038683120fff9c5c5f8dc751Johan Hovold wake_up_interruptible(&port->port.delta_msr_wait); 744d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek 745d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek tty = tty_port_tty_get(&port->port); 746d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek if (!tty) 747d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek return; 748d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek if ((priv->line_status ^ prev_line_status) & UART_DCD) 749d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek usb_serial_handle_dcd_change(port, tty, 750d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek priv->line_status & UART_DCD); 751d14fc1a74e846d7851f24fc9519fe87dc12a1231Libor Pechacek tty_kref_put(tty); 75297bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner} 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7547d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsstatic void pl2303_read_int_callback(struct urb *urb) 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 756cdc97792289179974af6dda781c855696358d307Ming Lei struct usb_serial_port *port = urb->context; 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *data = urb->transfer_buffer; 75897bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner unsigned int actual_length = urb->actual_length; 759461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman int status = urb->status; 760461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman int retval; 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 762461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman switch (status) { 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* success */ 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -ECONNRESET: 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -ENOENT: 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -ESHUTDOWN: 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* this urb is terminated, clean up */ 770d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n", 771d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman __func__, status); 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 774d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n", 775d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman __func__, status); 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit; 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 77959d33f2fc2d63796296b1b76143e039d6e7cf532Greg Kroah-Hartman usb_serial_debug_data(&port->dev, __func__, 780372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi urb->actual_length, urb->transfer_buffer); 781372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi 78297bb13ec5bc156352cca8af90080597e04299a73Flavio Leitner pl2303_update_line_status(port, data, actual_length); 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit: 785461d696aeeae294ad22dfcaae462d1757f955778Greg Kroah-Hartman retval = usb_submit_urb(urb, GFP_ATOMIC); 786ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold if (retval) { 787d8789b2b90aeb53ce59ac232d2ff0d8357d53893Greg Kroah-Hartman dev_err(&port->dev, 788372db8a780f63368c6960a167b7a19aad776d704Thiago Galesi "%s - usb_submit_urb failed with result %d\n", 789441b62c1edb986827154768d89bbac0ba779984fHarvey Harrison __func__, retval); 790ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold } 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 793f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovoldstatic void pl2303_process_read_urb(struct urb *urb) 794d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox{ 795f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold struct usb_serial_port *port = urb->context; 796f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold struct pl2303_private *priv = usb_get_serial_port_data(port); 797d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox unsigned char *data = urb->transfer_buffer; 798d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox char tty_flag = TTY_NORMAL; 799f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold unsigned long flags; 800f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold u8 line_status; 801f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold int i; 802f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold 803f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold /* update line status */ 804f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold spin_lock_irqsave(&priv->lock, flags); 805f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold line_status = priv->line_status; 806f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold priv->line_status &= ~UART_STATE_TRANSIENT_MASK; 807f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold spin_unlock_irqrestore(&priv->lock, flags); 808f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold 809f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold if (!urb->actual_length) 810f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold return; 811f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold 812ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold /* 813ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold * Break takes precedence over parity, which takes precedence over 814ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold * framing errors. 815ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold */ 816d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox if (line_status & UART_BREAK_ERROR) 817d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox tty_flag = TTY_BREAK; 818d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox else if (line_status & UART_PARITY_ERROR) 819d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox tty_flag = TTY_PARITY; 820d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox else if (line_status & UART_FRAME_ERROR) 821d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox tty_flag = TTY_FRAME; 822d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox 8233ba19fe31b726371b45f91a8de9341f5625e75e4Johan Hovold if (tty_flag != TTY_NORMAL) 8243ba19fe31b726371b45f91a8de9341f5625e75e4Johan Hovold dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, 8253ba19fe31b726371b45f91a8de9341f5625e75e4Johan Hovold tty_flag); 826d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox /* overrun is special, not associated with a char */ 827d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox if (line_status & UART_OVERRUN_ERROR) 82892a19f9cec9a80ad93c06e115822deb729e2c6adJiri Slaby tty_insert_flip_char(&port->port, 0, TTY_OVERRUN); 8299388e2e71a51fab0aa2309bbb45e8a23d89a95a9Johan Hovold 830d45cc8df7f59eb4db28408076ce979cd5e18f2b7Johan Hovold if (port->port.console && port->sysrq) { 831d4fc4a7bfc2dee626f4fec1e209e58eaa4312de6Alan Cox for (i = 0; i < urb->actual_length; ++i) 8326ee9f4b4affe751d313d2538999aeec134d413a6Dmitry Torokhov if (!usb_serial_handle_sysrq_char(port, data[i])) 83392a19f9cec9a80ad93c06e115822deb729e2c6adJiri Slaby tty_insert_flip_char(&port->port, data[i], 83492a19f9cec9a80ad93c06e115822deb729e2c6adJiri Slaby tty_flag); 835d45cc8df7f59eb4db28408076ce979cd5e18f2b7Johan Hovold } else { 8362f69335710884ae6112fc8196ebe29b5cda7b79bJiri Slaby tty_insert_flip_string_fixed_flag(&port->port, data, tty_flag, 837d45cc8df7f59eb4db28408076ce979cd5e18f2b7Johan Hovold urb->actual_length); 8389388e2e71a51fab0aa2309bbb45e8a23d89a95a9Johan Hovold } 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8402e124b4a390ca85325fae75764bef92f0547fa25Jiri Slaby tty_flip_buffer_push(&port->port); 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 843572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesistatic struct usb_serial_driver pl2303_device = { 844572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .driver = { 845572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .owner = THIS_MODULE, 846572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .name = "pl2303", 847572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi }, 848572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .id_table = id_table, 849572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .num_ports = 1, 8507919c2fd9e07276403b9a4d9ae52305e0d70f923Johan Hovold .bulk_in_size = 256, 8513efeaff6298290b36499532f0b4c87aa4bae8aefJohan Hovold .bulk_out_size = 256, 852572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .open = pl2303_open, 853572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .close = pl2303_close, 854ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan Hovold .dtr_rts = pl2303_dtr_rts, 855335f8514f200e63d689113d29cb7253a5c282967Alan Cox .carrier_raised = pl2303_carrier_raised, 856572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .ioctl = pl2303_ioctl, 857572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .break_ctl = pl2303_break_ctl, 858572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .set_termios = pl2303_set_termios, 859572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .tiocmget = pl2303_tiocmget, 860572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .tiocmset = pl2303_tiocmset, 861824d11bef5540062d17380c65ee52d4b2948ca84Johan Hovold .tiocmiwait = pl2303_tiocmiwait, 862f08e07ac8b87b1a4b8ff88a061195e99282dfbbdJohan Hovold .process_read_urb = pl2303_process_read_urb, 863572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .read_int_callback = pl2303_read_int_callback, 864572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi .attach = pl2303_startup, 865f9c99bb8b3a1ec81af68d484a551307326c2e933Alan Stern .release = pl2303_release, 8668bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold .port_probe = pl2303_port_probe, 8678bf769eb5f6efc33f95088850f33fcc05d28b508Johan Hovold .port_remove = pl2303_port_remove, 868572d3138eb0cf17a2bf36944cc1d2c753578862eThiago Galesi}; 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 870f667ddad41e303ebc2c6d5bf3105dffe2fbdd717Alan Sternstatic struct usb_serial_driver * const serial_drivers[] = { 871f667ddad41e303ebc2c6d5bf3105dffe2fbdd717Alan Stern &pl2303_device, NULL 872f667ddad41e303ebc2c6d5bf3105dffe2fbdd717Alan Stern}; 873f667ddad41e303ebc2c6d5bf3105dffe2fbdd717Alan Stern 87468e24113457e437b1576670f2419b77ed0531e9eGreg Kroah-Hartmanmodule_usb_serial_driver(serial_drivers, id_table); 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 876ccfe8188a321f4039a7e52c8336bb4ff3ca35139Johan HovoldMODULE_DESCRIPTION("Prolific PL2303 USB to serial adaptor driver"); 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 878