Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Prolific PL2303 USB to serial adaptor driver |
| 3 | * |
Greg Kroah-Hartman | 4d0dce3 | 2007-06-12 11:43:37 -0700 | [diff] [blame] | 4 | * Copyright (C) 2001-2007 Greg Kroah-Hartman (greg@kroah.com) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * Copyright (C) 2003 IBM Corp. |
| 6 | * |
| 7 | * Original driver for 2.2.x by anonymous |
| 8 | * |
Greg Kroah-Hartman | 4d0dce3 | 2007-06-12 11:43:37 -0700 | [diff] [blame] | 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License version |
| 11 | * 2 as published by the Free Software Foundation. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | * |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 13 | * See Documentation/usb/usb-serial.txt for more information on using this |
| 14 | * driver |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | */ |
| 17 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/kernel.h> |
| 19 | #include <linux/errno.h> |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/slab.h> |
| 22 | #include <linux/tty.h> |
| 23 | #include <linux/tty_driver.h> |
| 24 | #include <linux/tty_flip.h> |
| 25 | #include <linux/serial.h> |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <linux/spinlock.h> |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 29 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 31 | #include <linux/usb/serial.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include "pl2303.h" |
| 33 | |
| 34 | /* |
| 35 | * Version Information |
| 36 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #define DRIVER_DESC "Prolific PL2303 USB to serial adaptor driver" |
| 38 | |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 39 | static bool debug; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| 41 | #define PL2303_CLOSING_WAIT (30*HZ) |
| 42 | |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 43 | static const struct usb_device_id id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, |
| 45 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) }, |
Peter Moulder | 3d86149 | 2006-06-19 22:47:49 +1000 | [diff] [blame] | 46 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_DCU11) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ3) }, |
| 48 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_PHAROS) }, |
Max Arnold | b483b6a | 2008-03-20 16:43:56 +0700 | [diff] [blame] | 49 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ALDIGA) }, |
Steve Murphy | 4be2fa1 | 2008-05-23 23:39:05 +0530 | [diff] [blame] | 50 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MMX) }, |
Greg Kroah-Hartman | 727df35 | 2008-07-02 15:25:41 -0500 | [diff] [blame] | 51 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GPRS) }, |
Simone Contini | 18344a1 | 2010-04-12 23:25:10 +0200 | [diff] [blame] | 52 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) }, |
Dario Lombardo | 96a3e79 | 2011-01-21 15:35:19 +0100 | [diff] [blame] | 53 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, |
Masakazu Mokuno | 8a28dea | 2007-10-23 13:51:57 +0900 | [diff] [blame] | 55 | { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) }, |
| 57 | { USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) }, |
| 58 | { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) }, |
| 59 | { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID_UCSGT) }, |
| 60 | { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID) }, |
Wang Jun | 5838171 | 2006-04-19 16:32:07 +0800 | [diff] [blame] | 61 | { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID_2080) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | { USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) }, |
| 63 | { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) }, |
| 64 | { USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) }, |
| 65 | { USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) }, |
| 66 | { USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) }, |
| 67 | { USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) }, |
| 68 | { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_ID) }, |
| 69 | { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_ID) }, |
Luiz Fernando Capitulino | a8310f3 | 2005-11-17 09:47:32 -0800 | [diff] [blame] | 70 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_SX1) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X65) }, |
Luiz Fernando Capitulino | a8310f3 | 2005-11-17 09:47:32 -0800 | [diff] [blame] | 72 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X75) }, |
Andreas Loibl | e7beb66 | 2007-08-24 01:51:11 +0200 | [diff] [blame] | 73 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_EF81) }, |
Alan Cox | 912299f | 2009-04-06 17:35:12 +0100 | [diff] [blame] | 74 | { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_ID_S81) }, /* Benq/Siemens S81 */ |
Peter Favrholdt | acbb36f | 2005-04-18 17:39:32 -0700 | [diff] [blame] | 75 | { USB_DEVICE(SYNTECH_VENDOR_ID, SYNTECH_PRODUCT_ID) }, |
Christian Lindner | c6c2772 | 2006-02-01 14:10:52 +0100 | [diff] [blame] | 76 | { USB_DEVICE(NOKIA_CA42_VENDOR_ID, NOKIA_CA42_PRODUCT_ID) }, |
| 77 | { USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) }, |
Denis MONTERRAT | 6cceb05 | 2006-01-19 14:52:38 +0100 | [diff] [blame] | 78 | { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) }, |
Christian Lindner | c6c2772 | 2006-02-01 14:10:52 +0100 | [diff] [blame] | 79 | { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) }, |
Dick Streefland | 491b04c | 2006-03-01 00:53:33 -0800 | [diff] [blame] | 80 | { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, |
Matthew Meno | 3b92847 | 2006-06-21 15:25:53 -0400 | [diff] [blame] | 81 | { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) }, |
Kim Oldfield | b7aa94b | 2006-07-25 15:54:59 +1000 | [diff] [blame] | 82 | { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) }, |
Johannes Steingraeber | 8fd8013 | 2006-09-16 16:17:34 +0200 | [diff] [blame] | 83 | { USB_DEVICE(ALCOR_VENDOR_ID, ALCOR_PRODUCT_ID) }, |
YOSHIFUJI Hideaki | 2d94b98 | 2007-01-26 22:51:38 +0900 | [diff] [blame] | 84 | { USB_DEVICE(WS002IN_VENDOR_ID, WS002IN_PRODUCT_ID) }, |
Magnus Damm | 9e3285d | 2007-11-08 16:45:46 +0900 | [diff] [blame] | 85 | { USB_DEVICE(COREGA_VENDOR_ID, COREGA_PRODUCT_ID) }, |
Damien Stuart | cc311ee | 2008-01-06 13:51:39 -0500 | [diff] [blame] | 86 | { USB_DEVICE(YCCABLE_VENDOR_ID, YCCABLE_PRODUCT_ID) }, |
Matthew Arnold | 7c99200 | 2008-12-13 22:42:53 +1100 | [diff] [blame] | 87 | { USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) }, |
Mike Provencher | af4b851 | 2008-12-16 14:30:14 -0600 | [diff] [blame] | 88 | { USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) }, |
Gianpaolo Cugola | 8540d66 | 2009-06-05 22:57:52 +0200 | [diff] [blame] | 89 | { USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) }, |
Jef Driesen | f36ecd5 | 2010-08-09 15:55:32 +0200 | [diff] [blame] | 90 | { USB_DEVICE(ZEAGLE_VENDOR_ID, ZEAGLE_N2ITION3_PRODUCT_ID) }, |
Khanh-Dang Nguyen Thu Lam | 4927656 | 2009-07-28 19:41:17 +0200 | [diff] [blame] | 91 | { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, |
Pawel Ludwikow | 35904e6 | 2009-08-27 14:15:50 +0200 | [diff] [blame] | 92 | { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) }, |
Manuel Jander | 9a61d72 | 2010-03-29 23:51:57 +0200 | [diff] [blame] | 93 | { USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) }, |
Eric Benoit | 598f0b7 | 2011-09-24 02:04:50 -0400 | [diff] [blame] | 94 | { USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | { } /* Terminating entry */ |
| 96 | }; |
| 97 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 98 | MODULE_DEVICE_TABLE(usb, id_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
| 100 | static struct usb_driver pl2303_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | .name = "pl2303", |
| 102 | .probe = usb_serial_probe, |
| 103 | .disconnect = usb_serial_disconnect, |
| 104 | .id_table = id_table, |
Sarah Sharp | fcf9e55 | 2007-12-14 14:09:30 -0800 | [diff] [blame] | 105 | .suspend = usb_serial_suspend, |
| 106 | .resume = usb_serial_resume, |
Sarah Sharp | fcf9e55 | 2007-12-14 14:09:30 -0800 | [diff] [blame] | 107 | .supports_autosuspend = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | }; |
| 109 | |
| 110 | #define SET_LINE_REQUEST_TYPE 0x21 |
| 111 | #define SET_LINE_REQUEST 0x20 |
| 112 | |
| 113 | #define SET_CONTROL_REQUEST_TYPE 0x21 |
| 114 | #define SET_CONTROL_REQUEST 0x22 |
| 115 | #define CONTROL_DTR 0x01 |
| 116 | #define CONTROL_RTS 0x02 |
| 117 | |
| 118 | #define BREAK_REQUEST_TYPE 0x21 |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 119 | #define BREAK_REQUEST 0x23 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | #define BREAK_ON 0xffff |
| 121 | #define BREAK_OFF 0x0000 |
| 122 | |
| 123 | #define GET_LINE_REQUEST_TYPE 0xa1 |
| 124 | #define GET_LINE_REQUEST 0x21 |
| 125 | |
| 126 | #define VENDOR_WRITE_REQUEST_TYPE 0x40 |
| 127 | #define VENDOR_WRITE_REQUEST 0x01 |
| 128 | |
| 129 | #define VENDOR_READ_REQUEST_TYPE 0xc0 |
| 130 | #define VENDOR_READ_REQUEST 0x01 |
| 131 | |
| 132 | #define UART_STATE 0x08 |
| 133 | #define UART_STATE_TRANSIENT_MASK 0x74 |
| 134 | #define UART_DCD 0x01 |
| 135 | #define UART_DSR 0x02 |
| 136 | #define UART_BREAK_ERROR 0x04 |
| 137 | #define UART_RING 0x08 |
| 138 | #define UART_FRAME_ERROR 0x10 |
| 139 | #define UART_PARITY_ERROR 0x20 |
| 140 | #define UART_OVERRUN_ERROR 0x40 |
| 141 | #define UART_CTS 0x80 |
| 142 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
| 144 | enum pl2303_type { |
| 145 | type_0, /* don't know the difference between type 0 and */ |
| 146 | type_1, /* type 1, until someone from prolific tells us... */ |
| 147 | HX, /* HX version of the pl2303 chip */ |
| 148 | }; |
| 149 | |
| 150 | struct pl2303_private { |
| 151 | spinlock_t lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | wait_queue_head_t delta_msr_wait; |
| 153 | u8 line_control; |
| 154 | u8 line_status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | enum pl2303_type type; |
| 156 | }; |
| 157 | |
Sarah Sharp | eb44da0 | 2007-12-14 14:08:00 -0800 | [diff] [blame] | 158 | static int pl2303_vendor_read(__u16 value, __u16 index, |
| 159 | struct usb_serial *serial, unsigned char *buf) |
| 160 | { |
| 161 | int res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
| 162 | VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, |
| 163 | value, index, buf, 1, 100); |
| 164 | dbg("0x%x:0x%x:0x%x:0x%x %d - %x", VENDOR_READ_REQUEST_TYPE, |
| 165 | VENDOR_READ_REQUEST, value, index, res, buf[0]); |
| 166 | return res; |
| 167 | } |
| 168 | |
| 169 | static int pl2303_vendor_write(__u16 value, __u16 index, |
| 170 | struct usb_serial *serial) |
| 171 | { |
| 172 | int res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), |
| 173 | VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, |
| 174 | value, index, NULL, 0, 100); |
| 175 | dbg("0x%x:0x%x:0x%x:0x%x %d", VENDOR_WRITE_REQUEST_TYPE, |
| 176 | VENDOR_WRITE_REQUEST, value, index, res); |
| 177 | return res; |
| 178 | } |
| 179 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 180 | static int pl2303_startup(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | { |
| 182 | struct pl2303_private *priv; |
| 183 | enum pl2303_type type = type_0; |
Sarah Sharp | 3e15250 | 2007-12-14 14:08:35 -0800 | [diff] [blame] | 184 | unsigned char *buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | int i; |
| 186 | |
Sarah Sharp | 3e15250 | 2007-12-14 14:08:35 -0800 | [diff] [blame] | 187 | buf = kmalloc(10, GFP_KERNEL); |
| 188 | if (buf == NULL) |
| 189 | return -ENOMEM; |
| 190 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | if (serial->dev->descriptor.bDeviceClass == 0x02) |
| 192 | type = type_0; |
| 193 | else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) |
| 194 | type = HX; |
| 195 | else if (serial->dev->descriptor.bDeviceClass == 0x00) |
| 196 | type = type_1; |
| 197 | else if (serial->dev->descriptor.bDeviceClass == 0xFF) |
| 198 | type = type_1; |
| 199 | dbg("device type: %d", type); |
| 200 | |
| 201 | for (i = 0; i < serial->num_ports; ++i) { |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 202 | priv = kzalloc(sizeof(struct pl2303_private), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | if (!priv) |
| 204 | goto cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | spin_lock_init(&priv->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | init_waitqueue_head(&priv->delta_msr_wait); |
| 207 | priv->type = type; |
| 208 | usb_set_serial_port_data(serial->port[i], priv); |
| 209 | } |
Sarah Sharp | 3e15250 | 2007-12-14 14:08:35 -0800 | [diff] [blame] | 210 | |
| 211 | pl2303_vendor_read(0x8484, 0, serial, buf); |
| 212 | pl2303_vendor_write(0x0404, 0, serial); |
| 213 | pl2303_vendor_read(0x8484, 0, serial, buf); |
| 214 | pl2303_vendor_read(0x8383, 0, serial, buf); |
| 215 | pl2303_vendor_read(0x8484, 0, serial, buf); |
| 216 | pl2303_vendor_write(0x0404, 1, serial); |
| 217 | pl2303_vendor_read(0x8484, 0, serial, buf); |
| 218 | pl2303_vendor_read(0x8383, 0, serial, buf); |
| 219 | pl2303_vendor_write(0, 1, serial); |
| 220 | pl2303_vendor_write(1, 0, serial); |
| 221 | if (type == HX) |
| 222 | pl2303_vendor_write(2, 0x44, serial); |
| 223 | else |
| 224 | pl2303_vendor_write(2, 0x24, serial); |
| 225 | |
| 226 | kfree(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | return 0; |
| 228 | |
| 229 | cleanup: |
Sarah Sharp | 3e15250 | 2007-12-14 14:08:35 -0800 | [diff] [blame] | 230 | kfree(buf); |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 231 | for (--i; i >= 0; --i) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | priv = usb_get_serial_port_data(serial->port[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | kfree(priv); |
| 234 | usb_set_serial_port_data(serial->port[i], NULL); |
| 235 | } |
| 236 | return -ENOMEM; |
| 237 | } |
| 238 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 239 | static int set_control_lines(struct usb_device *dev, u8 value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | { |
| 241 | int retval; |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 242 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 243 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 244 | SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, |
| 245 | value, 0, NULL, 0, 100); |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 246 | dbg("%s - value = %d, retval = %d", __func__, value, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | return retval; |
| 248 | } |
| 249 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 250 | static void pl2303_set_termios(struct tty_struct *tty, |
| 251 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | { |
| 253 | struct usb_serial *serial = port->serial; |
| 254 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
| 255 | unsigned long flags; |
| 256 | unsigned int cflag; |
| 257 | unsigned char *buf; |
| 258 | int baud; |
| 259 | int i; |
| 260 | u8 control; |
Frank Schaefer | 25b8286 | 2009-08-18 20:15:07 +0200 | [diff] [blame] | 261 | const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, |
| 262 | 4800, 7200, 9600, 14400, 19200, 28800, 38400, |
| 263 | 57600, 115200, 230400, 460800, 614400, |
| 264 | 921600, 1228800, 2457600, 3000000, 6000000 }; |
| 265 | int baud_floor, baud_ceil; |
| 266 | int k; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 268 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | |
Alan Cox | bf5e583 | 2008-01-08 14:55:51 +0000 | [diff] [blame] | 270 | /* The PL2303 is reported to lose bytes if you change |
| 271 | serial settings even to the same values as before. Thus |
| 272 | we actually need to filter in this specific case */ |
| 273 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 274 | if (!tty_termios_hw_change(tty->termios, old_termios)) |
Alan Cox | bf5e583 | 2008-01-08 14:55:51 +0000 | [diff] [blame] | 275 | return; |
| 276 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 277 | cflag = tty->termios->c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 279 | buf = kzalloc(7, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | if (!buf) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 281 | dev_err(&port->dev, "%s - out of memory.\n", __func__); |
Alan Cox | a5b6f60 | 2008-04-08 17:16:06 +0100 | [diff] [blame] | 282 | /* Report back no change occurred */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 283 | *tty->termios = *old_termios; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | return; |
| 285 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 287 | i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
| 288 | GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, |
| 289 | 0, 0, buf, 7, 100); |
| 290 | dbg("0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x", i, |
| 291 | buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | |
| 293 | if (cflag & CSIZE) { |
| 294 | switch (cflag & CSIZE) { |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 295 | case CS5: |
| 296 | buf[6] = 5; |
| 297 | break; |
| 298 | case CS6: |
| 299 | buf[6] = 6; |
| 300 | break; |
| 301 | case CS7: |
| 302 | buf[6] = 7; |
| 303 | break; |
| 304 | default: |
| 305 | case CS8: |
| 306 | buf[6] = 8; |
| 307 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | } |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 309 | dbg("%s - data bits = %d", __func__, buf[6]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | } |
| 311 | |
Frank Schaefer | 25b8286 | 2009-08-18 20:15:07 +0200 | [diff] [blame] | 312 | /* For reference buf[0]:buf[3] baud rate value */ |
| 313 | /* NOTE: Only the values defined in baud_sup are supported ! |
| 314 | * => if unsupported values are set, the PL2303 seems to use |
| 315 | * 9600 baud (at least my PL2303X always does) |
| 316 | */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 317 | baud = tty_get_baud_rate(tty); |
Frank Schaefer | 25b8286 | 2009-08-18 20:15:07 +0200 | [diff] [blame] | 318 | dbg("%s - baud requested = %d", __func__, baud); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | if (baud) { |
Frank Schaefer | 25b8286 | 2009-08-18 20:15:07 +0200 | [diff] [blame] | 320 | /* Set baudrate to nearest supported value */ |
| 321 | for (k=0; k<ARRAY_SIZE(baud_sup); k++) { |
| 322 | if (baud_sup[k] / baud) { |
| 323 | baud_ceil = baud_sup[k]; |
| 324 | if (k==0) { |
| 325 | baud = baud_ceil; |
| 326 | } else { |
| 327 | baud_floor = baud_sup[k-1]; |
| 328 | if ((baud_ceil % baud) |
| 329 | > (baud % baud_floor)) |
| 330 | baud = baud_floor; |
| 331 | else |
| 332 | baud = baud_ceil; |
| 333 | } |
| 334 | break; |
| 335 | } |
| 336 | } |
| 337 | if (baud > 1228800) { |
| 338 | /* type_0, type_1 only support up to 1228800 baud */ |
| 339 | if (priv->type != HX) |
| 340 | baud = 1228800; |
| 341 | else if (baud > 6000000) |
| 342 | baud = 6000000; |
| 343 | } |
| 344 | dbg("%s - baud set = %d", __func__, baud); |
Michał Sroczyński | 8d48fdf | 2011-07-05 21:53:35 +0200 | [diff] [blame] | 345 | if (baud <= 115200) { |
| 346 | buf[0] = baud & 0xff; |
| 347 | buf[1] = (baud >> 8) & 0xff; |
| 348 | buf[2] = (baud >> 16) & 0xff; |
| 349 | buf[3] = (baud >> 24) & 0xff; |
| 350 | } else { |
| 351 | /* apparently the formula for higher speeds is: |
| 352 | * baudrate = 12M * 32 / (2^buf[1]) / buf[0] |
| 353 | */ |
| 354 | unsigned tmp = 12*1000*1000*32 / baud; |
| 355 | buf[3] = 0x80; |
| 356 | buf[2] = 0; |
| 357 | buf[1] = (tmp >= 256); |
| 358 | while (tmp >= 256) { |
| 359 | tmp >>= 2; |
| 360 | buf[1] <<= 1; |
| 361 | } |
Michał Sroczyński | 8d48fdf | 2011-07-05 21:53:35 +0200 | [diff] [blame] | 362 | buf[0] = tmp; |
| 363 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | } |
| 365 | |
| 366 | /* For reference buf[4]=0 is 1 stop bits */ |
| 367 | /* For reference buf[4]=1 is 1.5 stop bits */ |
| 368 | /* For reference buf[4]=2 is 2 stop bits */ |
| 369 | if (cflag & CSTOPB) { |
Frank Schaefer | 29cf1b7 | 2009-08-18 20:34:24 +0200 | [diff] [blame] | 370 | /* NOTE: Comply with "real" UARTs / RS232: |
| 371 | * use 1.5 instead of 2 stop bits with 5 data bits |
| 372 | */ |
| 373 | if ((cflag & CSIZE) == CS5) { |
| 374 | buf[4] = 1; |
| 375 | dbg("%s - stop bits = 1.5", __func__); |
| 376 | } else { |
| 377 | buf[4] = 2; |
| 378 | dbg("%s - stop bits = 2", __func__); |
| 379 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | } else { |
| 381 | buf[4] = 0; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 382 | dbg("%s - stop bits = 1", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | } |
| 384 | |
| 385 | if (cflag & PARENB) { |
| 386 | /* For reference buf[5]=0 is none parity */ |
| 387 | /* For reference buf[5]=1 is odd parity */ |
| 388 | /* For reference buf[5]=2 is even parity */ |
| 389 | /* For reference buf[5]=3 is mark parity */ |
| 390 | /* For reference buf[5]=4 is space parity */ |
| 391 | if (cflag & PARODD) { |
Frank Schaefer | 6dd81b4 | 2009-08-18 20:31:11 +0200 | [diff] [blame] | 392 | if (cflag & CMSPAR) { |
| 393 | buf[5] = 3; |
| 394 | dbg("%s - parity = mark", __func__); |
| 395 | } else { |
| 396 | buf[5] = 1; |
| 397 | dbg("%s - parity = odd", __func__); |
| 398 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | } else { |
Frank Schaefer | 6dd81b4 | 2009-08-18 20:31:11 +0200 | [diff] [blame] | 400 | if (cflag & CMSPAR) { |
| 401 | buf[5] = 4; |
| 402 | dbg("%s - parity = space", __func__); |
| 403 | } else { |
| 404 | buf[5] = 2; |
| 405 | dbg("%s - parity = even", __func__); |
| 406 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | } |
| 408 | } else { |
| 409 | buf[5] = 0; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 410 | dbg("%s - parity = none", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | } |
| 412 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 413 | i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), |
| 414 | SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, |
| 415 | 0, 0, buf, 7, 100); |
| 416 | dbg("0x21:0x20:0:0 %d", i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | |
| 418 | /* change control lines if we are switching to or from B0 */ |
| 419 | spin_lock_irqsave(&priv->lock, flags); |
| 420 | control = priv->line_control; |
| 421 | if ((cflag & CBAUD) == B0) |
| 422 | priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); |
| 423 | else |
| 424 | priv->line_control |= (CONTROL_DTR | CONTROL_RTS); |
| 425 | if (control != priv->line_control) { |
| 426 | control = priv->line_control; |
| 427 | spin_unlock_irqrestore(&priv->lock, flags); |
| 428 | set_control_lines(serial->dev, control); |
| 429 | } else { |
| 430 | spin_unlock_irqrestore(&priv->lock, flags); |
| 431 | } |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 432 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | buf[0] = buf[1] = buf[2] = buf[3] = buf[4] = buf[5] = buf[6] = 0; |
| 434 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 435 | i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
| 436 | GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, |
| 437 | 0, 0, buf, 7, 100); |
| 438 | dbg("0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x", i, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); |
| 440 | |
| 441 | if (cflag & CRTSCTS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | if (priv->type == HX) |
Sarah Sharp | eb44da0 | 2007-12-14 14:08:00 -0800 | [diff] [blame] | 443 | pl2303_vendor_write(0x0, 0x61, serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | else |
Sarah Sharp | eb44da0 | 2007-12-14 14:08:00 -0800 | [diff] [blame] | 445 | pl2303_vendor_write(0x0, 0x41, serial); |
t.sefzick | 715f952 | 2007-04-25 15:05:22 +0200 | [diff] [blame] | 446 | } else { |
Sarah Sharp | eb44da0 | 2007-12-14 14:08:00 -0800 | [diff] [blame] | 447 | pl2303_vendor_write(0x0, 0x0, serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | } |
| 449 | |
Frank Schaefer | 25b8286 | 2009-08-18 20:15:07 +0200 | [diff] [blame] | 450 | /* Save resulting baud rate */ |
Alan Cox | df64c47 | 2007-10-15 20:54:47 +0100 | [diff] [blame] | 451 | if (baud) |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 452 | tty_encode_baud_rate(tty, baud, baud); |
Alan Cox | df64c47 | 2007-10-15 20:54:47 +0100 | [diff] [blame] | 453 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 454 | kfree(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | } |
| 456 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 457 | static void pl2303_dtr_rts(struct usb_serial_port *port, int on) |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 458 | { |
| 459 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
| 460 | unsigned long flags; |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 461 | u8 control; |
| 462 | |
| 463 | spin_lock_irqsave(&priv->lock, flags); |
| 464 | /* Change DTR and RTS */ |
| 465 | if (on) |
| 466 | priv->line_control |= (CONTROL_DTR | CONTROL_RTS); |
| 467 | else |
| 468 | priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); |
| 469 | control = priv->line_control; |
| 470 | spin_unlock_irqrestore(&priv->lock, flags); |
| 471 | set_control_lines(port->serial->dev, control); |
| 472 | } |
| 473 | |
| 474 | static void pl2303_close(struct usb_serial_port *port) |
| 475 | { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 476 | dbg("%s - port %d", __func__, port->number); |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 477 | |
Johan Hovold | 8b0127b | 2010-03-17 23:06:04 +0100 | [diff] [blame] | 478 | usb_serial_generic_close(port); |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 479 | usb_kill_urb(port->interrupt_in_urb); |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 480 | } |
| 481 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 482 | static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | { |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 484 | struct ktermios tmp_termios; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | struct usb_serial *serial = port->serial; |
| 486 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | int result; |
| 488 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 489 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | |
Dariusz M | 1694899 | 2005-07-28 18:06:13 +0200 | [diff] [blame] | 491 | if (priv->type != HX) { |
| 492 | usb_clear_halt(serial->dev, port->write_urb->pipe); |
| 493 | usb_clear_halt(serial->dev, port->read_urb->pipe); |
Sarah Sharp | 3e15250 | 2007-12-14 14:08:35 -0800 | [diff] [blame] | 494 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | /* reset upstream data pipes */ |
Sarah Sharp | eb44da0 | 2007-12-14 14:08:00 -0800 | [diff] [blame] | 496 | pl2303_vendor_write(8, 0, serial); |
| 497 | pl2303_vendor_write(9, 0, serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | } |
| 499 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | /* Setup termios */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 501 | if (tty) |
| 502 | pl2303_set_termios(tty, port, &tmp_termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 504 | dbg("%s - submitting interrupt urb", __func__); |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 505 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | if (result) { |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 507 | dev_err(&port->dev, "%s - failed submitting interrupt urb," |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 508 | " error %d\n", __func__, result); |
Johan Hovold | db6e918 | 2011-11-06 19:06:34 +0100 | [diff] [blame] | 509 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | } |
Johan Hovold | d4691c3 | 2011-11-06 19:06:35 +0100 | [diff] [blame] | 511 | |
Johan Hovold | f5230a5 | 2011-11-06 19:06:36 +0100 | [diff] [blame] | 512 | result = usb_serial_generic_open(tty, port); |
Johan Hovold | d4691c3 | 2011-11-06 19:06:35 +0100 | [diff] [blame] | 513 | if (result) { |
| 514 | usb_kill_urb(port->interrupt_in_urb); |
| 515 | return result; |
| 516 | } |
| 517 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 518 | port->port.drain_delay = 256; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | return 0; |
| 520 | } |
| 521 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 522 | static int pl2303_tiocmset(struct tty_struct *tty, |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 523 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 525 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
| 527 | unsigned long flags; |
| 528 | u8 control; |
| 529 | |
Flavio Leitner | 6fdd8e8 | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 530 | if (!usb_get_intfdata(port->serial->interface)) |
| 531 | return -ENODEV; |
| 532 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 533 | spin_lock_irqsave(&priv->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | if (set & TIOCM_RTS) |
| 535 | priv->line_control |= CONTROL_RTS; |
| 536 | if (set & TIOCM_DTR) |
| 537 | priv->line_control |= CONTROL_DTR; |
| 538 | if (clear & TIOCM_RTS) |
| 539 | priv->line_control &= ~CONTROL_RTS; |
| 540 | if (clear & TIOCM_DTR) |
| 541 | priv->line_control &= ~CONTROL_DTR; |
| 542 | control = priv->line_control; |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 543 | spin_unlock_irqrestore(&priv->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 545 | return set_control_lines(port->serial->dev, control); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | } |
| 547 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 548 | static int pl2303_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 550 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
| 552 | unsigned long flags; |
| 553 | unsigned int mcr; |
| 554 | unsigned int status; |
| 555 | unsigned int result; |
| 556 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 557 | dbg("%s (%d)", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | |
Flavio Leitner | 6fdd8e8 | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 559 | if (!usb_get_intfdata(port->serial->interface)) |
| 560 | return -ENODEV; |
| 561 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 562 | spin_lock_irqsave(&priv->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | mcr = priv->line_control; |
| 564 | status = priv->line_status; |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 565 | spin_unlock_irqrestore(&priv->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | |
| 567 | result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0) |
| 568 | | ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0) |
| 569 | | ((status & UART_CTS) ? TIOCM_CTS : 0) |
| 570 | | ((status & UART_DSR) ? TIOCM_DSR : 0) |
| 571 | | ((status & UART_RING) ? TIOCM_RI : 0) |
| 572 | | ((status & UART_DCD) ? TIOCM_CD : 0); |
| 573 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 574 | dbg("%s - result = %x", __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | |
| 576 | return result; |
| 577 | } |
| 578 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 579 | static int pl2303_carrier_raised(struct usb_serial_port *port) |
| 580 | { |
| 581 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
| 582 | if (priv->line_status & UART_DCD) |
| 583 | return 1; |
| 584 | return 0; |
| 585 | } |
| 586 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) |
| 588 | { |
| 589 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
| 590 | unsigned long flags; |
| 591 | unsigned int prevstatus; |
| 592 | unsigned int status; |
| 593 | unsigned int changed; |
| 594 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 595 | spin_lock_irqsave(&priv->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | prevstatus = priv->line_status; |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 597 | spin_unlock_irqrestore(&priv->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | |
| 599 | while (1) { |
| 600 | interruptible_sleep_on(&priv->delta_msr_wait); |
| 601 | /* see if a signal did it */ |
| 602 | if (signal_pending(current)) |
| 603 | return -ERESTARTSYS; |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 604 | |
| 605 | spin_lock_irqsave(&priv->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | status = priv->line_status; |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 607 | spin_unlock_irqrestore(&priv->lock, flags); |
| 608 | |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 609 | changed = prevstatus ^ status; |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 610 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | if (((arg & TIOCM_RNG) && (changed & UART_RING)) || |
| 612 | ((arg & TIOCM_DSR) && (changed & UART_DSR)) || |
| 613 | ((arg & TIOCM_CD) && (changed & UART_DCD)) || |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 614 | ((arg & TIOCM_CTS) && (changed & UART_CTS))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | return 0; |
| 616 | } |
| 617 | prevstatus = status; |
| 618 | } |
| 619 | /* NOTREACHED */ |
| 620 | return 0; |
| 621 | } |
| 622 | |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 623 | static int pl2303_ioctl(struct tty_struct *tty, |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 624 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | { |
John Tsiombikas | 67b9946 | 2010-02-25 17:09:08 +0200 | [diff] [blame] | 626 | struct serial_struct ser; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 627 | struct usb_serial_port *port = tty->driver_data; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 628 | dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | |
| 630 | switch (cmd) { |
John Tsiombikas | 67b9946 | 2010-02-25 17:09:08 +0200 | [diff] [blame] | 631 | case TIOCGSERIAL: |
| 632 | memset(&ser, 0, sizeof ser); |
| 633 | ser.type = PORT_16654; |
| 634 | ser.line = port->serial->minor; |
| 635 | ser.port = port->number; |
| 636 | ser.baud_base = 460800; |
| 637 | |
| 638 | if (copy_to_user((void __user *)arg, &ser, sizeof ser)) |
| 639 | return -EFAULT; |
| 640 | |
| 641 | return 0; |
| 642 | |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 643 | case TIOCMIWAIT: |
| 644 | dbg("%s (%d) TIOCMIWAIT", __func__, port->number); |
| 645 | return wait_modem_info(port, arg); |
| 646 | default: |
| 647 | dbg("%s not supported = 0x%04x", __func__, cmd); |
| 648 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | return -ENOIOCTLCMD; |
| 651 | } |
| 652 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 653 | static void pl2303_break_ctl(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 655 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | struct usb_serial *serial = port->serial; |
| 657 | u16 state; |
| 658 | int result; |
| 659 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 660 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | |
| 662 | if (break_state == 0) |
| 663 | state = BREAK_OFF; |
| 664 | else |
| 665 | state = BREAK_ON; |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 666 | dbg("%s - turning break %s", __func__, |
| 667 | state == BREAK_OFF ? "off" : "on"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 669 | result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), |
| 670 | BREAK_REQUEST, BREAK_REQUEST_TYPE, state, |
| 671 | 0, NULL, 0, 100); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | if (result) |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 673 | dbg("%s - error sending break = %d", __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | } |
| 675 | |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 676 | static void pl2303_release(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | { |
| 678 | int i; |
| 679 | struct pl2303_private *priv; |
| 680 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 681 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | |
| 683 | for (i = 0; i < serial->num_ports; ++i) { |
| 684 | priv = usb_get_serial_port_data(serial->port[i]); |
Johan Hovold | 684c6e3 | 2010-03-17 23:06:03 +0100 | [diff] [blame] | 685 | kfree(priv); |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 686 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | } |
| 688 | |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 689 | static void pl2303_update_line_status(struct usb_serial_port *port, |
| 690 | unsigned char *data, |
| 691 | unsigned int actual_length) |
| 692 | { |
| 693 | |
| 694 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
Libor Pechacek | d14fc1a | 2011-01-14 14:30:21 +0100 | [diff] [blame] | 695 | struct tty_struct *tty; |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 696 | unsigned long flags; |
| 697 | u8 status_idx = UART_STATE; |
Horst Schirmeier | 95f209f | 2005-07-28 15:32:20 +0200 | [diff] [blame] | 698 | u8 length = UART_STATE + 1; |
Libor Pechacek | d14fc1a | 2011-01-14 14:30:21 +0100 | [diff] [blame] | 699 | u8 prev_line_status; |
Thiago Galesi | 9c53761 | 2006-07-29 10:47:12 -0300 | [diff] [blame] | 700 | u16 idv, idp; |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 701 | |
Thiago Galesi | 9c53761 | 2006-07-29 10:47:12 -0300 | [diff] [blame] | 702 | idv = le16_to_cpu(port->serial->dev->descriptor.idVendor); |
| 703 | idp = le16_to_cpu(port->serial->dev->descriptor.idProduct); |
| 704 | |
| 705 | |
| 706 | if (idv == SIEMENS_VENDOR_ID) { |
| 707 | if (idp == SIEMENS_PRODUCT_ID_X65 || |
| 708 | idp == SIEMENS_PRODUCT_ID_SX1 || |
| 709 | idp == SIEMENS_PRODUCT_ID_X75) { |
| 710 | |
| 711 | length = 1; |
| 712 | status_idx = 0; |
| 713 | } |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 714 | } |
| 715 | |
| 716 | if (actual_length < length) |
Luiz Fernando N. Capitulino | a009b75 | 2006-07-25 16:58:30 -0300 | [diff] [blame] | 717 | return; |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 718 | |
Alan Cox | 3a0f43e | 2008-07-22 11:14:49 +0100 | [diff] [blame] | 719 | /* Save off the uart status for others to look at */ |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 720 | spin_lock_irqsave(&priv->lock, flags); |
Libor Pechacek | d14fc1a | 2011-01-14 14:30:21 +0100 | [diff] [blame] | 721 | prev_line_status = priv->line_status; |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 722 | priv->line_status = data[status_idx]; |
| 723 | spin_unlock_irqrestore(&priv->lock, flags); |
Jason Wessel | 430eb0d | 2009-05-29 13:34:16 -0500 | [diff] [blame] | 724 | if (priv->line_status & UART_BREAK_ERROR) |
| 725 | usb_serial_handle_break(port); |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 726 | wake_up_interruptible(&priv->delta_msr_wait); |
Libor Pechacek | d14fc1a | 2011-01-14 14:30:21 +0100 | [diff] [blame] | 727 | |
| 728 | tty = tty_port_tty_get(&port->port); |
| 729 | if (!tty) |
| 730 | return; |
| 731 | if ((priv->line_status ^ prev_line_status) & UART_DCD) |
| 732 | usb_serial_handle_dcd_change(port, tty, |
| 733 | priv->line_status & UART_DCD); |
| 734 | tty_kref_put(tty); |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 735 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 737 | static void pl2303_read_int_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 739 | struct usb_serial_port *port = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | unsigned char *data = urb->transfer_buffer; |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 741 | unsigned int actual_length = urb->actual_length; |
Greg Kroah-Hartman | 461d696 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 742 | int status = urb->status; |
| 743 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 745 | dbg("%s (%d)", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | |
Greg Kroah-Hartman | 461d696 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 747 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | case 0: |
| 749 | /* success */ |
| 750 | break; |
| 751 | case -ECONNRESET: |
| 752 | case -ENOENT: |
| 753 | case -ESHUTDOWN: |
| 754 | /* this urb is terminated, clean up */ |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 755 | dbg("%s - urb shutting down with status: %d", __func__, |
Greg Kroah-Hartman | 461d696 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 756 | status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | return; |
| 758 | default: |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 759 | dbg("%s - nonzero urb status received: %d", __func__, |
Greg Kroah-Hartman | 461d696 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 760 | status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | goto exit; |
| 762 | } |
| 763 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 764 | usb_serial_debug_data(debug, &port->dev, __func__, |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 765 | urb->actual_length, urb->transfer_buffer); |
| 766 | |
Flavio Leitner | 97bb13e | 2005-04-18 17:39:31 -0700 | [diff] [blame] | 767 | pl2303_update_line_status(port, data, actual_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | exit: |
Greg Kroah-Hartman | 461d696 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 770 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
| 771 | if (retval) |
Thiago Galesi | 372db8a | 2006-07-31 15:39:27 -0300 | [diff] [blame] | 772 | dev_err(&urb->dev->dev, |
| 773 | "%s - usb_submit_urb failed with result %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 774 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | } |
| 776 | |
Johan Hovold | f08e07a | 2010-03-17 23:05:58 +0100 | [diff] [blame] | 777 | static void pl2303_process_read_urb(struct urb *urb) |
Alan Cox | d4fc4a7 | 2009-07-09 13:36:58 +0100 | [diff] [blame] | 778 | { |
Johan Hovold | f08e07a | 2010-03-17 23:05:58 +0100 | [diff] [blame] | 779 | struct usb_serial_port *port = urb->context; |
| 780 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
| 781 | struct tty_struct *tty; |
Alan Cox | d4fc4a7 | 2009-07-09 13:36:58 +0100 | [diff] [blame] | 782 | unsigned char *data = urb->transfer_buffer; |
Alan Cox | d4fc4a7 | 2009-07-09 13:36:58 +0100 | [diff] [blame] | 783 | char tty_flag = TTY_NORMAL; |
Johan Hovold | f08e07a | 2010-03-17 23:05:58 +0100 | [diff] [blame] | 784 | unsigned long flags; |
| 785 | u8 line_status; |
| 786 | int i; |
| 787 | |
| 788 | /* update line status */ |
| 789 | spin_lock_irqsave(&priv->lock, flags); |
| 790 | line_status = priv->line_status; |
| 791 | priv->line_status &= ~UART_STATE_TRANSIENT_MASK; |
| 792 | spin_unlock_irqrestore(&priv->lock, flags); |
| 793 | wake_up_interruptible(&priv->delta_msr_wait); |
| 794 | |
| 795 | if (!urb->actual_length) |
| 796 | return; |
| 797 | |
| 798 | tty = tty_port_tty_get(&port->port); |
| 799 | if (!tty) |
| 800 | return; |
| 801 | |
Alan Cox | d4fc4a7 | 2009-07-09 13:36:58 +0100 | [diff] [blame] | 802 | /* break takes precedence over parity, */ |
| 803 | /* which takes precedence over framing errors */ |
| 804 | if (line_status & UART_BREAK_ERROR) |
| 805 | tty_flag = TTY_BREAK; |
| 806 | else if (line_status & UART_PARITY_ERROR) |
| 807 | tty_flag = TTY_PARITY; |
| 808 | else if (line_status & UART_FRAME_ERROR) |
| 809 | tty_flag = TTY_FRAME; |
| 810 | dbg("%s - tty_flag = %d", __func__, tty_flag); |
| 811 | |
Alan Cox | d4fc4a7 | 2009-07-09 13:36:58 +0100 | [diff] [blame] | 812 | /* overrun is special, not associated with a char */ |
| 813 | if (line_status & UART_OVERRUN_ERROR) |
| 814 | tty_insert_flip_char(tty, 0, TTY_OVERRUN); |
Johan Hovold | 9388e2e | 2009-10-08 11:36:46 +0200 | [diff] [blame] | 815 | |
Johan Hovold | d45cc8d | 2010-05-08 15:18:41 +0200 | [diff] [blame] | 816 | if (port->port.console && port->sysrq) { |
Alan Cox | d4fc4a7 | 2009-07-09 13:36:58 +0100 | [diff] [blame] | 817 | for (i = 0; i < urb->actual_length; ++i) |
Dmitry Torokhov | 6ee9f4b | 2010-08-17 21:15:47 -0700 | [diff] [blame] | 818 | if (!usb_serial_handle_sysrq_char(port, data[i])) |
Alan Cox | d4fc4a7 | 2009-07-09 13:36:58 +0100 | [diff] [blame] | 819 | tty_insert_flip_char(tty, data[i], tty_flag); |
Johan Hovold | d45cc8d | 2010-05-08 15:18:41 +0200 | [diff] [blame] | 820 | } else { |
| 821 | tty_insert_flip_string_fixed_flag(tty, data, tty_flag, |
| 822 | urb->actual_length); |
Johan Hovold | 9388e2e | 2009-10-08 11:36:46 +0200 | [diff] [blame] | 823 | } |
Johan Hovold | f08e07a | 2010-03-17 23:05:58 +0100 | [diff] [blame] | 824 | |
Alan Cox | d4fc4a7 | 2009-07-09 13:36:58 +0100 | [diff] [blame] | 825 | tty_flip_buffer_push(tty); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 826 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | } |
| 828 | |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 829 | /* All of the device info needed for the PL2303 SIO serial converter */ |
| 830 | static struct usb_serial_driver pl2303_device = { |
| 831 | .driver = { |
| 832 | .owner = THIS_MODULE, |
| 833 | .name = "pl2303", |
| 834 | }, |
| 835 | .id_table = id_table, |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 836 | .num_ports = 1, |
Johan Hovold | 7919c2f | 2010-03-17 23:00:41 +0100 | [diff] [blame] | 837 | .bulk_in_size = 256, |
Johan Hovold | 3efeaff | 2010-03-17 23:00:40 +0100 | [diff] [blame] | 838 | .bulk_out_size = 256, |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 839 | .open = pl2303_open, |
| 840 | .close = pl2303_close, |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 841 | .dtr_rts = pl2303_dtr_rts, |
| 842 | .carrier_raised = pl2303_carrier_raised, |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 843 | .ioctl = pl2303_ioctl, |
| 844 | .break_ctl = pl2303_break_ctl, |
| 845 | .set_termios = pl2303_set_termios, |
| 846 | .tiocmget = pl2303_tiocmget, |
| 847 | .tiocmset = pl2303_tiocmset, |
Johan Hovold | f08e07a | 2010-03-17 23:05:58 +0100 | [diff] [blame] | 848 | .process_read_urb = pl2303_process_read_urb, |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 849 | .read_int_callback = pl2303_read_int_callback, |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 850 | .attach = pl2303_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 851 | .release = pl2303_release, |
Thiago Galesi | 572d313 | 2006-07-29 10:46:37 -0300 | [diff] [blame] | 852 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | |
Alan Stern | f667dda | 2012-02-23 14:57:18 -0500 | [diff] [blame] | 854 | static struct usb_serial_driver * const serial_drivers[] = { |
| 855 | &pl2303_device, NULL |
| 856 | }; |
| 857 | |
Greg KH | d1cddb4 | 2012-02-24 15:38:14 -0800 | [diff] [blame] | 858 | module_usb_serial_driver(pl2303_driver, serial_drivers); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | |
| 860 | MODULE_DESCRIPTION(DRIVER_DESC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | MODULE_LICENSE("GPL"); |
| 862 | |
| 863 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 864 | MODULE_PARM_DESC(debug, "Debug enabled or not"); |
| 865 | |