Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 2 | * Silicon Laboratories CP210x USB to RS232 serial adaptor driver |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk) |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License version |
| 8 | * 2 as published by the Free Software Foundation. |
| 9 | * |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 10 | * Support to set flow control line levels using TIOCMGET and TIOCMSET |
| 11 | * thanks to Karl Hiramoto karl@hiramoto.org. RTSCTS hardware flow |
| 12 | * control thanks to Munir Nassar nassarmu@real-time.com |
| 13 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | */ |
| 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/kernel.h> |
| 17 | #include <linux/errno.h> |
| 18 | #include <linux/slab.h> |
| 19 | #include <linux/tty.h> |
| 20 | #include <linux/tty_flip.h> |
| 21 | #include <linux/module.h> |
| 22 | #include <linux/moduleparam.h> |
| 23 | #include <linux/usb.h> |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 24 | #include <linux/uaccess.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 25 | #include <linux/usb/serial.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 27 | #define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | /* |
| 30 | * Function Prototypes |
| 31 | */ |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 32 | static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 33 | static void cp210x_close(struct usb_serial_port *); |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 34 | static void cp210x_get_termios(struct tty_struct *, struct usb_serial_port *); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 35 | static void cp210x_get_termios_port(struct usb_serial_port *port, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 36 | unsigned int *cflagp, unsigned int *baudp); |
Johan Hovold | e599087 | 2012-01-16 00:36:51 +0100 | [diff] [blame] | 37 | static void cp210x_change_speed(struct tty_struct *, struct usb_serial_port *, |
| 38 | struct ktermios *); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 39 | static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 40 | struct ktermios*); |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 41 | static int cp210x_tiocmget(struct tty_struct *); |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 42 | static int cp210x_tiocmset(struct tty_struct *, unsigned int, unsigned int); |
| 43 | static int cp210x_tiocmset_port(struct usb_serial_port *port, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 44 | unsigned int, unsigned int); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 45 | static void cp210x_break_ctl(struct tty_struct *, int); |
| 46 | static int cp210x_startup(struct usb_serial *); |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 47 | static void cp210x_release(struct usb_serial *); |
Alan Cox | d94c7bd | 2009-10-28 21:12:33 +0100 | [diff] [blame] | 48 | static void cp210x_dtr_rts(struct usb_serial_port *p, int on); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 50 | static const struct usb_device_id id_table[] = { |
DJ Delorie | 2f1136d | 2010-09-17 11:09:06 -0400 | [diff] [blame] | 51 | { USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */ |
M Kondrin | 5091b58 | 2008-11-14 13:02:45 +0300 | [diff] [blame] | 52 | { USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */ |
Craig Shelley | 59fba74 | 2008-04-12 16:15:54 +0100 | [diff] [blame] | 53 | { USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */ |
A E Lawrence | 5b22a32 | 2010-08-29 21:51:52 +0100 | [diff] [blame] | 54 | { USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 55 | { USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */ |
Luiz Angelo Daros de Luca | 9062507 | 2013-07-01 23:56:25 -0300 | [diff] [blame] | 56 | { USB_DEVICE(0x0846, 0x1100) }, /* NetGear Managed Switch M4100 series, M5300 series, M7100 series */ |
Edouard Lafargue | 1f4f714 | 2007-09-25 10:15:36 +0200 | [diff] [blame] | 57 | { USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 58 | { USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */ |
Lennart Sorensen | a6f0331 | 2015-01-21 15:24:27 -0500 | [diff] [blame] | 59 | { USB_DEVICE(0x0908, 0x01FF) }, /* Siemens RUGGEDCOM USB Serial Console */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 60 | { USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */ |
| 61 | { USB_DEVICE(0x0BED, 0x1101) }, /* MEI series 2000 Combo Acceptor */ |
Craig Shelley | 198b951 | 2005-08-28 09:51:15 +0100 | [diff] [blame] | 62 | { USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */ |
Martin Kusserow | 014840e | 2007-12-21 12:02:17 +0100 | [diff] [blame] | 63 | { USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */ |
Craig Shelley | 59fba74 | 2008-04-12 16:15:54 +0100 | [diff] [blame] | 64 | { USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */ |
Luis Llorente Campo | 8de7f4d | 2013-01-31 13:37:05 +0100 | [diff] [blame] | 65 | { USB_DEVICE(0x0FDE, 0xCA05) }, /* OWL Wireless Electricity Monitor CM-160 */ |
Craig Shelley | 198b951 | 2005-08-28 09:51:15 +0100 | [diff] [blame] | 66 | { USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 67 | { USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */ |
| 68 | { USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 69 | { USB_DEVICE(0x10C4, 0x0F91) }, /* Vstabi */ |
Amit Kucheria | 0601e11 | 2009-07-06 14:19:59 +0300 | [diff] [blame] | 70 | { USB_DEVICE(0x10C4, 0x1101) }, /* Arkham Technology DS101 Bus Monitor */ |
| 71 | { USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */ |
Craig Shelley | 5de8b3a | 2008-01-03 12:45:59 +0000 | [diff] [blame] | 72 | { USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */ |
Craig Shelley | 59224f5 | 2006-03-11 11:29:02 +0000 | [diff] [blame] | 73 | { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 74 | { USB_DEVICE(0x10C4, 0x8044) }, /* Cygnal Debug Adapter */ |
| 75 | { USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */ |
Craig Shelley | 92f5cae | 2007-04-20 14:37:17 +0100 | [diff] [blame] | 76 | { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */ |
Damir N Abdullin | 9a18e75 | 2008-10-30 13:52:38 -0700 | [diff] [blame] | 77 | { USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */ |
Vitja Makarov | 212a4b4 | 2006-05-31 00:40:06 +0400 | [diff] [blame] | 78 | { USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 79 | { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 80 | { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */ |
Mikko Tuumanen | 5bbfa6f | 2012-06-01 11:28:55 +0300 | [diff] [blame] | 81 | { USB_DEVICE(0x10C4, 0x80C4) }, /* Cygnal Integrated Products, Inc., Optris infrared thermometer */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 82 | { USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */ |
Craig Shelley | 92f5cae | 2007-04-20 14:37:17 +0100 | [diff] [blame] | 83 | { USB_DEVICE(0x10C4, 0x80DD) }, /* Tracient RFID */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 84 | { USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */ |
Craig Shelley | ba0f332 | 2008-09-04 21:28:21 +0100 | [diff] [blame] | 85 | { USB_DEVICE(0x10C4, 0x8115) }, /* Arygon NFC/Mifare Reader */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 86 | { USB_DEVICE(0x10C4, 0x813D) }, /* Burnside Telecom Deskmobile */ |
Craig Shelley | 8bf16ba | 2009-07-12 21:52:33 +0100 | [diff] [blame] | 87 | { USB_DEVICE(0x10C4, 0x813F) }, /* Tams Master Easy Control */ |
Jon K Hellan | fc4bd64 | 2007-02-28 23:04:33 +0100 | [diff] [blame] | 88 | { USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */ |
| 89 | { USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */ |
Steve Conklin | a57e82a | 2013-03-07 17:19:33 -0600 | [diff] [blame] | 90 | { USB_DEVICE(0x2405, 0x0003) }, /* West Mountain Radio RIGblaster Advantage */ |
Jason Detring | 0bf7a81 | 2010-08-26 15:08:54 -0500 | [diff] [blame] | 91 | { USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 92 | { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ |
Craig Shelley | 3fcc8f9 | 2012-06-26 23:20:04 +0100 | [diff] [blame] | 93 | { USB_DEVICE(0x10C4, 0x815F) }, /* Timewave HamLinkUSB */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 94 | { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */ |
Robert M. Kenney | c653566 | 2009-02-26 14:58:39 -0500 | [diff] [blame] | 95 | { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ |
Bernhard Beck | 96623697 | 2008-05-11 09:23:13 -0700 | [diff] [blame] | 96 | { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ |
Malte Schröder | 08e87d0 | 2012-01-05 20:34:40 +0100 | [diff] [blame] | 97 | { USB_DEVICE(0x10C4, 0x81A9) }, /* Multiplex RC Interface */ |
Craig Shelley | 59fba74 | 2008-04-12 16:15:54 +0100 | [diff] [blame] | 98 | { USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 99 | { USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */ |
Bjorn Schneider | 78001e3 | 2006-10-28 12:42:04 +0200 | [diff] [blame] | 100 | { USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */ |
| 101 | { USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */ |
Jeff Long | 8be27c2 | 2007-11-28 11:02:09 -0500 | [diff] [blame] | 102 | { USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */ |
Alan Cox | bd07c55 | 2010-02-08 10:10:44 +0000 | [diff] [blame] | 103 | { USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 104 | { USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */ |
Bjorn Schneider | 78001e3 | 2006-10-28 12:42:04 +0200 | [diff] [blame] | 105 | { USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */ |
Tomasz K | 877e262 | 2009-01-04 12:47:11 +0100 | [diff] [blame] | 106 | { USB_DEVICE(0x10C4, 0x822B) }, /* Modem EDGE(GSM) Comander 2 */ |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 107 | { USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */ |
Tristan Bruns | 72b3007 | 2014-04-13 23:57:16 +0200 | [diff] [blame] | 108 | { USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */ |
Florian Fainelli | c851e83 | 2011-05-10 11:17:33 +0200 | [diff] [blame] | 109 | { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 110 | { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */ |
Craig Shelley | ba0f332 | 2008-09-04 21:28:21 +0100 | [diff] [blame] | 111 | { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */ |
Craig Shelley | 8bf16ba | 2009-07-12 21:52:33 +0100 | [diff] [blame] | 112 | { USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */ |
Craig Shelley | 881e3c9 | 2008-11-09 20:17:54 +0000 | [diff] [blame] | 113 | { USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */ |
Craig Shelley | faea63f | 2011-01-02 21:51:46 +0000 | [diff] [blame] | 114 | { USB_DEVICE(0x10C4, 0x83D8) }, /* DekTec DTA Plus VHF/UHF Booster/Attenuator */ |
Craig Shelley | 8bf16ba | 2009-07-12 21:52:33 +0100 | [diff] [blame] | 115 | { USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */ |
Craig Shelley | faea63f | 2011-01-02 21:51:46 +0000 | [diff] [blame] | 116 | { USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */ |
Alex Stephens | d23bac9 | 2009-03-17 00:06:19 +0000 | [diff] [blame] | 117 | { USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */ |
Craig Shelley | 541e05e | 2010-08-23 20:50:57 +0100 | [diff] [blame] | 118 | { USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */ |
Craig Shelley | 4eff0b4 | 2011-03-20 13:51:13 +0000 | [diff] [blame] | 119 | { USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */ |
| 120 | { USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */ |
Markus Becker | 356fe44 | 2012-11-22 09:41:23 +0100 | [diff] [blame] | 121 | { USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */ |
Craig Shelley | 4eff0b4 | 2011-03-20 13:51:13 +0000 | [diff] [blame] | 122 | { USB_DEVICE(0x10C4, 0x8664) }, /* AC-Services CAN-IF */ |
| 123 | { USB_DEVICE(0x10C4, 0x8665) }, /* AC-Services OBD-IF */ |
David Peterson | 1ae78a4 | 2015-01-06 15:00:52 +0000 | [diff] [blame] | 124 | { USB_DEVICE(0x10C4, 0x8856) }, /* CEL EM357 ZigBee USB Stick - LR */ |
| 125 | { USB_DEVICE(0x10C4, 0x8857) }, /* CEL EM357 ZigBee USB Stick */ |
Sami Rahman | 7681156 | 2013-07-08 14:28:55 -0400 | [diff] [blame] | 126 | { USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */ |
| 127 | { USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */ |
Joe Savage | bfc2d7d | 2014-09-20 08:01:16 -0500 | [diff] [blame] | 128 | { USB_DEVICE(0x10C4, 0x8946) }, /* Ketra N1 Wireless Interface */ |
David Peterson | 1ae78a4 | 2015-01-06 15:00:52 +0000 | [diff] [blame] | 129 | { USB_DEVICE(0x10C4, 0x8977) }, /* CEL MeshWorks DevKit Device */ |
Mark Edwards | c735ed7 | 2015-04-14 08:52:34 -0400 | [diff] [blame^] | 130 | { USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 131 | { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */ |
Craig Shelley | 61926b9 | 2006-10-12 22:09:56 +0100 | [diff] [blame] | 132 | { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */ |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 133 | { USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */ |
| 134 | { USB_DEVICE(0x10C4, 0xEA80) }, /* Silicon Labs factory default */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 135 | { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */ |
Craig Shelley | 5de8b3a | 2008-01-03 12:45:59 +0000 | [diff] [blame] | 136 | { USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */ |
| 137 | { USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */ |
| 138 | { USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */ |
| 139 | { USB_DEVICE(0x10C4, 0xF004) }, /* Elan Digital Systems USBcount50 */ |
Pozsar Balazs | ebaf494 | 2007-02-16 12:47:49 +0100 | [diff] [blame] | 140 | { USB_DEVICE(0x10C5, 0xEA61) }, /* Silicon Labs MobiData GPRS USB Modem */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 141 | { USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */ |
Johannes Hoelzl | e05998d | 2006-12-02 16:54:27 +0100 | [diff] [blame] | 142 | { USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 143 | { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */ |
Craig Shelley | 3fcc8f9 | 2012-06-26 23:20:04 +0100 | [diff] [blame] | 144 | { USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal Automation Controller */ |
| 145 | { USB_DEVICE(0x166A, 0x0301) }, /* Clipsal 5800PC C-Bus Wireless PC Interface */ |
Craig Shelley | 5de8b3a | 2008-01-03 12:45:59 +0000 | [diff] [blame] | 146 | { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ |
Craig Shelley | 3fcc8f9 | 2012-06-26 23:20:04 +0100 | [diff] [blame] | 147 | { USB_DEVICE(0x166A, 0x0304) }, /* Clipsal 5000CT2 C-Bus Black and White Touchscreen */ |
| 148 | { USB_DEVICE(0x166A, 0x0305) }, /* Clipsal C-5000CT2 C-Bus Spectrum Colour Touchscreen */ |
| 149 | { USB_DEVICE(0x166A, 0x0401) }, /* Clipsal L51xx C-Bus Architectural Dimmer */ |
| 150 | { USB_DEVICE(0x166A, 0x0101) }, /* Clipsal 5560884 C-Bus Multi-room Audio Matrix Switcher */ |
Michiel vd Garde | 675af70 | 2015-02-27 02:08:29 +0100 | [diff] [blame] | 151 | { USB_DEVICE(0x16C0, 0x09B0) }, /* Lunatico Seletek */ |
| 152 | { USB_DEVICE(0x16C0, 0x09B1) }, /* Lunatico Seletek */ |
Josef Balatka | b0ce84d | 2005-11-17 09:47:24 -0800 | [diff] [blame] | 153 | { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */ |
Alessio Igor Bogani | 356c5a4 | 2010-07-27 23:05:14 +0200 | [diff] [blame] | 154 | { USB_DEVICE(0x16DC, 0x0010) }, /* W-IE-NE-R Plein & Baus GmbH PL512 Power Supply */ |
| 155 | { USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */ |
| 156 | { USB_DEVICE(0x16DC, 0x0012) }, /* W-IE-NE-R Plein & Baus GmbH MPOD Multi Channel Power Supply */ |
| 157 | { USB_DEVICE(0x16DC, 0x0015) }, /* W-IE-NE-R Plein & Baus GmbH CML Control, Monitoring and Data Logger */ |
Bruno Thomsen | c6c1e44 | 2012-02-21 23:41:37 +0100 | [diff] [blame] | 158 | { USB_DEVICE(0x17A8, 0x0001) }, /* Kamstrup Optical Eye/3-wire */ |
| 159 | { USB_DEVICE(0x17A8, 0x0005) }, /* Kamstrup M-Bus Master MultiPort 250D */ |
Craig Shelley | 541e05e | 2010-08-23 20:50:57 +0100 | [diff] [blame] | 160 | { USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */ |
| 161 | { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */ |
| 162 | { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ |
Barry Grussling | b579fa5 | 2013-07-19 14:46:12 -0700 | [diff] [blame] | 163 | { USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */ |
Andras Kovacs | b932605 | 2014-06-27 14:50:11 +0200 | [diff] [blame] | 164 | { USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */ |
Nathaniel Ting | 35cc83e | 2014-10-03 12:01:20 -0400 | [diff] [blame] | 165 | { USB_DEVICE(0x1BA4, 0x0002) }, /* Silicon Labs 358x factory default */ |
Anders Larsen | 93ad03d | 2010-10-06 23:46:25 +0200 | [diff] [blame] | 166 | { USB_DEVICE(0x1BE3, 0x07A6) }, /* WAGO 750-923 USB Service Cable */ |
Andreas Bomholtz | dee80ad | 2014-09-22 09:50:43 +0200 | [diff] [blame] | 167 | { USB_DEVICE(0x1D6F, 0x0010) }, /* Seluxit ApS RF Dongle */ |
Craig Shelley | 3fcc8f9 | 2012-06-26 23:20:04 +0100 | [diff] [blame] | 168 | { USB_DEVICE(0x1E29, 0x0102) }, /* Festo CPX-USB */ |
| 169 | { USB_DEVICE(0x1E29, 0x0501) }, /* Festo CMSP */ |
Matwey V. Kornilov | be3101c | 2013-03-09 13:57:32 +0400 | [diff] [blame] | 170 | { USB_DEVICE(0x1FB9, 0x0100) }, /* Lake Shore Model 121 Current Source */ |
| 171 | { USB_DEVICE(0x1FB9, 0x0200) }, /* Lake Shore Model 218A Temperature Monitor */ |
| 172 | { USB_DEVICE(0x1FB9, 0x0201) }, /* Lake Shore Model 219 Temperature Monitor */ |
| 173 | { USB_DEVICE(0x1FB9, 0x0202) }, /* Lake Shore Model 233 Temperature Transmitter */ |
| 174 | { USB_DEVICE(0x1FB9, 0x0203) }, /* Lake Shore Model 235 Temperature Transmitter */ |
| 175 | { USB_DEVICE(0x1FB9, 0x0300) }, /* Lake Shore Model 335 Temperature Controller */ |
| 176 | { USB_DEVICE(0x1FB9, 0x0301) }, /* Lake Shore Model 336 Temperature Controller */ |
| 177 | { USB_DEVICE(0x1FB9, 0x0302) }, /* Lake Shore Model 350 Temperature Controller */ |
| 178 | { USB_DEVICE(0x1FB9, 0x0303) }, /* Lake Shore Model 371 AC Bridge */ |
| 179 | { USB_DEVICE(0x1FB9, 0x0400) }, /* Lake Shore Model 411 Handheld Gaussmeter */ |
| 180 | { USB_DEVICE(0x1FB9, 0x0401) }, /* Lake Shore Model 425 Gaussmeter */ |
| 181 | { USB_DEVICE(0x1FB9, 0x0402) }, /* Lake Shore Model 455A Gaussmeter */ |
| 182 | { USB_DEVICE(0x1FB9, 0x0403) }, /* Lake Shore Model 475A Gaussmeter */ |
| 183 | { USB_DEVICE(0x1FB9, 0x0404) }, /* Lake Shore Model 465 Three Axis Gaussmeter */ |
| 184 | { USB_DEVICE(0x1FB9, 0x0600) }, /* Lake Shore Model 625A Superconducting MPS */ |
| 185 | { USB_DEVICE(0x1FB9, 0x0601) }, /* Lake Shore Model 642A Magnet Power Supply */ |
| 186 | { USB_DEVICE(0x1FB9, 0x0602) }, /* Lake Shore Model 648 Magnet Power Supply */ |
| 187 | { USB_DEVICE(0x1FB9, 0x0700) }, /* Lake Shore Model 737 VSM Controller */ |
| 188 | { USB_DEVICE(0x1FB9, 0x0701) }, /* Lake Shore Model 776 Hall Matrix */ |
Renato Caldas | 791b7d7 | 2012-01-06 15:20:51 +0000 | [diff] [blame] | 189 | { USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */ |
Craig Shelley | 3fcc8f9 | 2012-06-26 23:20:04 +0100 | [diff] [blame] | 190 | { USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */ |
| 191 | { USB_DEVICE(0x3195, 0xF281) }, /* Link Instruments MSO-28 */ |
Craig Shelley | 541e05e | 2010-08-23 20:50:57 +0100 | [diff] [blame] | 192 | { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */ |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 193 | { } /* Terminating Entry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | }; |
| 195 | |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 196 | MODULE_DEVICE_TABLE(usb, id_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 198 | struct cp210x_serial_private { |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 199 | __u8 bInterfaceNumber; |
| 200 | }; |
| 201 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 202 | static struct usb_serial_driver cp210x_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 203 | .driver = { |
| 204 | .owner = THIS_MODULE, |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 205 | .name = "cp210x", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 206 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | .id_table = id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | .num_ports = 1, |
Johan Hovold | aea006b | 2010-03-17 23:00:39 +0100 | [diff] [blame] | 209 | .bulk_in_size = 256, |
Johan Hovold | d4e598f | 2010-03-17 23:00:38 +0100 | [diff] [blame] | 210 | .bulk_out_size = 256, |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 211 | .open = cp210x_open, |
| 212 | .close = cp210x_close, |
| 213 | .break_ctl = cp210x_break_ctl, |
| 214 | .set_termios = cp210x_set_termios, |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 215 | .tiocmget = cp210x_tiocmget, |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 216 | .tiocmset = cp210x_tiocmset, |
| 217 | .attach = cp210x_startup, |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 218 | .release = cp210x_release, |
Libor Pechacek | d14fc1a | 2011-01-14 14:30:21 +0100 | [diff] [blame] | 219 | .dtr_rts = cp210x_dtr_rts |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | }; |
| 221 | |
Alan Stern | 08a4f6b | 2012-02-23 14:56:17 -0500 | [diff] [blame] | 222 | static struct usb_serial_driver * const serial_drivers[] = { |
| 223 | &cp210x_device, NULL |
| 224 | }; |
| 225 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 226 | /* Config request types */ |
Preston Fick | 3244560 | 2012-04-30 23:06:48 -0500 | [diff] [blame] | 227 | #define REQTYPE_HOST_TO_INTERFACE 0x41 |
| 228 | #define REQTYPE_INTERFACE_TO_HOST 0xc1 |
| 229 | #define REQTYPE_HOST_TO_DEVICE 0x40 |
| 230 | #define REQTYPE_DEVICE_TO_HOST 0xc0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 232 | /* Config request codes */ |
| 233 | #define CP210X_IFC_ENABLE 0x00 |
| 234 | #define CP210X_SET_BAUDDIV 0x01 |
| 235 | #define CP210X_GET_BAUDDIV 0x02 |
| 236 | #define CP210X_SET_LINE_CTL 0x03 |
| 237 | #define CP210X_GET_LINE_CTL 0x04 |
| 238 | #define CP210X_SET_BREAK 0x05 |
| 239 | #define CP210X_IMM_CHAR 0x06 |
| 240 | #define CP210X_SET_MHS 0x07 |
| 241 | #define CP210X_GET_MDMSTS 0x08 |
| 242 | #define CP210X_SET_XON 0x09 |
| 243 | #define CP210X_SET_XOFF 0x0A |
| 244 | #define CP210X_SET_EVENTMASK 0x0B |
| 245 | #define CP210X_GET_EVENTMASK 0x0C |
| 246 | #define CP210X_SET_CHAR 0x0D |
| 247 | #define CP210X_GET_CHARS 0x0E |
| 248 | #define CP210X_GET_PROPS 0x0F |
| 249 | #define CP210X_GET_COMM_STATUS 0x10 |
| 250 | #define CP210X_RESET 0x11 |
| 251 | #define CP210X_PURGE 0x12 |
| 252 | #define CP210X_SET_FLOW 0x13 |
| 253 | #define CP210X_GET_FLOW 0x14 |
| 254 | #define CP210X_EMBED_EVENTS 0x15 |
| 255 | #define CP210X_GET_EVENTSTATE 0x16 |
| 256 | #define CP210X_SET_CHARS 0x19 |
Preston Fick | 7f482fc | 2012-01-16 18:14:09 -0600 | [diff] [blame] | 257 | #define CP210X_GET_BAUDRATE 0x1D |
| 258 | #define CP210X_SET_BAUDRATE 0x1E |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 260 | /* CP210X_IFC_ENABLE */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | #define UART_ENABLE 0x0001 |
| 262 | #define UART_DISABLE 0x0000 |
| 263 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 264 | /* CP210X_(SET|GET)_BAUDDIV */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | #define BAUD_RATE_GEN_FREQ 0x384000 |
| 266 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 267 | /* CP210X_(SET|GET)_LINE_CTL */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | #define BITS_DATA_MASK 0X0f00 |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 269 | #define BITS_DATA_5 0X0500 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | #define BITS_DATA_6 0X0600 |
| 271 | #define BITS_DATA_7 0X0700 |
| 272 | #define BITS_DATA_8 0X0800 |
| 273 | #define BITS_DATA_9 0X0900 |
| 274 | |
| 275 | #define BITS_PARITY_MASK 0x00f0 |
| 276 | #define BITS_PARITY_NONE 0x0000 |
| 277 | #define BITS_PARITY_ODD 0x0010 |
| 278 | #define BITS_PARITY_EVEN 0x0020 |
| 279 | #define BITS_PARITY_MARK 0x0030 |
| 280 | #define BITS_PARITY_SPACE 0x0040 |
| 281 | |
| 282 | #define BITS_STOP_MASK 0x000f |
| 283 | #define BITS_STOP_1 0x0000 |
| 284 | #define BITS_STOP_1_5 0x0001 |
| 285 | #define BITS_STOP_2 0x0002 |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 286 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 287 | /* CP210X_SET_BREAK */ |
Craig Shelley | 7291679 | 2010-08-18 22:13:39 +0100 | [diff] [blame] | 288 | #define BREAK_ON 0x0001 |
| 289 | #define BREAK_OFF 0x0000 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 291 | /* CP210X_(SET_MHS|GET_MDMSTS) */ |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 292 | #define CONTROL_DTR 0x0001 |
| 293 | #define CONTROL_RTS 0x0002 |
| 294 | #define CONTROL_CTS 0x0010 |
| 295 | #define CONTROL_DSR 0x0020 |
| 296 | #define CONTROL_RING 0x0040 |
| 297 | #define CONTROL_DCD 0x0080 |
| 298 | #define CONTROL_WRITE_DTR 0x0100 |
| 299 | #define CONTROL_WRITE_RTS 0x0200 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 301 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 302 | * cp210x_get_config |
| 303 | * Reads from the CP210x configuration registers |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 304 | * 'size' is specified in bytes. |
| 305 | * 'data' is a pointer to a pre-allocated array of integers large |
| 306 | * enough to hold 'size' bytes (with 4 bytes to each integer) |
| 307 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 308 | static int cp210x_get_config(struct usb_serial_port *port, u8 request, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 309 | unsigned int *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | { |
| 311 | struct usb_serial *serial = port->serial; |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 312 | struct cp210x_serial_private *spriv = usb_get_serial_data(serial); |
Al Viro | 53ebb3b | 2007-02-09 16:39:55 +0000 | [diff] [blame] | 313 | __le32 *buf; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 314 | int result, i, length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 316 | /* Number of integers required to contain the array */ |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 317 | length = (((size - 1) | 3) + 1) / 4; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 318 | |
Al Viro | 53ebb3b | 2007-02-09 16:39:55 +0000 | [diff] [blame] | 319 | buf = kcalloc(length, sizeof(__le32), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 320 | if (!buf) |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 321 | return -ENOMEM; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 322 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 323 | /* Issue the request, attempting to read 'size' bytes */ |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 324 | result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
Preston Fick | 3244560 | 2012-04-30 23:06:48 -0500 | [diff] [blame] | 325 | request, REQTYPE_INTERFACE_TO_HOST, 0x0000, |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 326 | spriv->bInterfaceNumber, buf, size, |
Yuri Matylitski | 2d5733f | 2012-04-20 12:38:32 +0300 | [diff] [blame] | 327 | USB_CTRL_GET_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 329 | /* Convert data into an array of integers */ |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 330 | for (i = 0; i < length; i++) |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 331 | data[i] = le32_to_cpu(buf[i]); |
| 332 | |
| 333 | kfree(buf); |
| 334 | |
| 335 | if (result != size) { |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 336 | dev_dbg(&port->dev, "%s - Unable to send config request, request=0x%x size=%d result=%d\n", |
| 337 | __func__, request, size, result); |
Johan Hovold | 2479e2a | 2011-11-10 14:58:29 +0100 | [diff] [blame] | 338 | if (result > 0) |
| 339 | result = -EPROTO; |
| 340 | |
| 341 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | } |
| 343 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | return 0; |
| 345 | } |
| 346 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 347 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 348 | * cp210x_set_config |
| 349 | * Writes to the CP210x configuration registers |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 350 | * Values less than 16 bits wide are sent directly |
| 351 | * 'size' is specified in bytes. |
| 352 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 353 | static int cp210x_set_config(struct usb_serial_port *port, u8 request, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 354 | unsigned int *data, int size) |
| 355 | { |
| 356 | struct usb_serial *serial = port->serial; |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 357 | struct cp210x_serial_private *spriv = usb_get_serial_data(serial); |
Al Viro | 53ebb3b | 2007-02-09 16:39:55 +0000 | [diff] [blame] | 358 | __le32 *buf; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 359 | int result, i, length; |
| 360 | |
| 361 | /* Number of integers required to contain the array */ |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 362 | length = (((size - 1) | 3) + 1) / 4; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 363 | |
Al Viro | 53ebb3b | 2007-02-09 16:39:55 +0000 | [diff] [blame] | 364 | buf = kmalloc(length * sizeof(__le32), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 365 | if (!buf) |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 366 | return -ENOMEM; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 367 | |
| 368 | /* Array of integers into bytes */ |
| 369 | for (i = 0; i < length; i++) |
| 370 | buf[i] = cpu_to_le32(data[i]); |
| 371 | |
| 372 | if (size > 2) { |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 373 | result = usb_control_msg(serial->dev, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 374 | usb_sndctrlpipe(serial->dev, 0), |
Preston Fick | 3244560 | 2012-04-30 23:06:48 -0500 | [diff] [blame] | 375 | request, REQTYPE_HOST_TO_INTERFACE, 0x0000, |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 376 | spriv->bInterfaceNumber, buf, size, |
Yuri Matylitski | 2d5733f | 2012-04-20 12:38:32 +0300 | [diff] [blame] | 377 | USB_CTRL_SET_TIMEOUT); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 378 | } else { |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 379 | result = usb_control_msg(serial->dev, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 380 | usb_sndctrlpipe(serial->dev, 0), |
Preston Fick | 3244560 | 2012-04-30 23:06:48 -0500 | [diff] [blame] | 381 | request, REQTYPE_HOST_TO_INTERFACE, data[0], |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 382 | spriv->bInterfaceNumber, NULL, 0, |
Yuri Matylitski | 2d5733f | 2012-04-20 12:38:32 +0300 | [diff] [blame] | 383 | USB_CTRL_SET_TIMEOUT); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 384 | } |
| 385 | |
| 386 | kfree(buf); |
| 387 | |
| 388 | if ((size > 2 && result != size) || result < 0) { |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 389 | dev_dbg(&port->dev, "%s - Unable to send request, request=0x%x size=%d result=%d\n", |
| 390 | __func__, request, size, result); |
Johan Hovold | 2479e2a | 2011-11-10 14:58:29 +0100 | [diff] [blame] | 391 | if (result > 0) |
| 392 | result = -EPROTO; |
| 393 | |
| 394 | return result; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 395 | } |
| 396 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 397 | return 0; |
| 398 | } |
| 399 | |
| 400 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 401 | * cp210x_set_config_single |
| 402 | * Convenience function for calling cp210x_set_config on single data values |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 403 | * without requiring an integer pointer |
| 404 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 405 | static inline int cp210x_set_config_single(struct usb_serial_port *port, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 406 | u8 request, unsigned int data) |
| 407 | { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 408 | return cp210x_set_config(port, request, &data, 2); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 409 | } |
| 410 | |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 411 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 412 | * cp210x_quantise_baudrate |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 413 | * Quantises the baud rate as per AN205 Table 1 |
| 414 | */ |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 415 | static unsigned int cp210x_quantise_baudrate(unsigned int baud) |
| 416 | { |
Johan Hovold | be125d9 | 2012-01-16 00:36:50 +0100 | [diff] [blame] | 417 | if (baud <= 300) |
| 418 | baud = 300; |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 419 | else if (baud <= 600) baud = 600; |
| 420 | else if (baud <= 1200) baud = 1200; |
| 421 | else if (baud <= 1800) baud = 1800; |
| 422 | else if (baud <= 2400) baud = 2400; |
| 423 | else if (baud <= 4000) baud = 4000; |
| 424 | else if (baud <= 4803) baud = 4800; |
| 425 | else if (baud <= 7207) baud = 7200; |
| 426 | else if (baud <= 9612) baud = 9600; |
| 427 | else if (baud <= 14428) baud = 14400; |
| 428 | else if (baud <= 16062) baud = 16000; |
| 429 | else if (baud <= 19250) baud = 19200; |
| 430 | else if (baud <= 28912) baud = 28800; |
| 431 | else if (baud <= 38601) baud = 38400; |
| 432 | else if (baud <= 51558) baud = 51200; |
| 433 | else if (baud <= 56280) baud = 56000; |
| 434 | else if (baud <= 58053) baud = 57600; |
| 435 | else if (baud <= 64111) baud = 64000; |
| 436 | else if (baud <= 77608) baud = 76800; |
| 437 | else if (baud <= 117028) baud = 115200; |
| 438 | else if (baud <= 129347) baud = 128000; |
| 439 | else if (baud <= 156868) baud = 153600; |
| 440 | else if (baud <= 237832) baud = 230400; |
| 441 | else if (baud <= 254234) baud = 250000; |
| 442 | else if (baud <= 273066) baud = 256000; |
| 443 | else if (baud <= 491520) baud = 460800; |
| 444 | else if (baud <= 567138) baud = 500000; |
| 445 | else if (baud <= 670254) baud = 576000; |
Johan Hovold | d1620ca | 2012-01-16 00:36:53 +0100 | [diff] [blame] | 446 | else if (baud < 1000000) |
| 447 | baud = 921600; |
| 448 | else if (baud > 2000000) |
| 449 | baud = 2000000; |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 450 | return baud; |
| 451 | } |
| 452 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 453 | static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | int result; |
| 456 | |
Johan Hovold | 2479e2a | 2011-11-10 14:58:29 +0100 | [diff] [blame] | 457 | result = cp210x_set_config_single(port, CP210X_IFC_ENABLE, |
| 458 | UART_ENABLE); |
| 459 | if (result) { |
| 460 | dev_err(&port->dev, "%s - Unable to enable UART\n", __func__); |
| 461 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | } |
| 463 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 464 | /* Configure the termios structure */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 465 | cp210x_get_termios(tty, port); |
Johan Hovold | 55b2afb | 2012-01-16 00:36:48 +0100 | [diff] [blame] | 466 | |
Johan Hovold | cdc32fd | 2012-01-16 00:36:52 +0100 | [diff] [blame] | 467 | /* The baud rate must be initialised on cp2104 */ |
| 468 | if (tty) |
| 469 | cp210x_change_speed(tty, port, NULL); |
| 470 | |
Johan Hovold | 55b2afb | 2012-01-16 00:36:48 +0100 | [diff] [blame] | 471 | return usb_serial_generic_open(tty, port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | } |
| 473 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 474 | static void cp210x_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | { |
Johan Hovold | f26788d | 2010-03-17 23:00:45 +0100 | [diff] [blame] | 476 | usb_serial_generic_close(port); |
Johan Hovold | ecb9eb8 | 2013-03-21 12:37:36 +0100 | [diff] [blame] | 477 | cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | } |
| 479 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 480 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 481 | * cp210x_get_termios |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 482 | * Reads the baud rate, data bits, parity, stop bits and flow control mode |
| 483 | * from the device, corrects any unsupported values, and configures the |
| 484 | * termios structure to reflect the state of the device |
| 485 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 486 | static void cp210x_get_termios(struct tty_struct *tty, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 487 | struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | { |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 489 | unsigned int baud; |
| 490 | |
| 491 | if (tty) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 492 | cp210x_get_termios_port(tty->driver_data, |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 493 | &tty->termios.c_cflag, &baud); |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 494 | tty_encode_baud_rate(tty, baud, baud); |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 495 | } else { |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 496 | unsigned int cflag; |
| 497 | cflag = 0; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 498 | cp210x_get_termios_port(port, &cflag, &baud); |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 499 | } |
| 500 | } |
| 501 | |
| 502 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 503 | * cp210x_get_termios_port |
| 504 | * This is the heart of cp210x_get_termios which always uses a &usb_serial_port. |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 505 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 506 | static void cp210x_get_termios_port(struct usb_serial_port *port, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 507 | unsigned int *cflagp, unsigned int *baudp) |
| 508 | { |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 509 | struct device *dev = &port->dev; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 510 | unsigned int cflag, modem_ctl[4]; |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 511 | unsigned int baud; |
| 512 | unsigned int bits; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
Preston Fick | 7f482fc | 2012-01-16 18:14:09 -0600 | [diff] [blame] | 514 | cp210x_get_config(port, CP210X_GET_BAUDRATE, &baud, 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 516 | dev_dbg(dev, "%s - baud rate = %d\n", __func__, baud); |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 517 | *baudp = baud; |
Alan Cox | 9ab0f20 | 2007-10-18 01:24:24 -0700 | [diff] [blame] | 518 | |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 519 | cflag = *cflagp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 521 | cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | cflag &= ~CSIZE; |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 523 | switch (bits & BITS_DATA_MASK) { |
| 524 | case BITS_DATA_5: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 525 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 526 | cflag |= CS5; |
| 527 | break; |
| 528 | case BITS_DATA_6: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 529 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 530 | cflag |= CS6; |
| 531 | break; |
| 532 | case BITS_DATA_7: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 533 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 534 | cflag |= CS7; |
| 535 | break; |
| 536 | case BITS_DATA_8: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 537 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 538 | cflag |= CS8; |
| 539 | break; |
| 540 | case BITS_DATA_9: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 541 | dev_dbg(dev, "%s - data bits = 9 (not supported, using 8 data bits)\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 542 | cflag |= CS8; |
| 543 | bits &= ~BITS_DATA_MASK; |
| 544 | bits |= BITS_DATA_8; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 545 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 546 | break; |
| 547 | default: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 548 | dev_dbg(dev, "%s - Unknown number of data bits, using 8\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 549 | cflag |= CS8; |
| 550 | bits &= ~BITS_DATA_MASK; |
| 551 | bits |= BITS_DATA_8; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 552 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 553 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | } |
| 555 | |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 556 | switch (bits & BITS_PARITY_MASK) { |
| 557 | case BITS_PARITY_NONE: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 558 | dev_dbg(dev, "%s - parity = NONE\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 559 | cflag &= ~PARENB; |
| 560 | break; |
| 561 | case BITS_PARITY_ODD: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 562 | dev_dbg(dev, "%s - parity = ODD\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 563 | cflag |= (PARENB|PARODD); |
| 564 | break; |
| 565 | case BITS_PARITY_EVEN: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 566 | dev_dbg(dev, "%s - parity = EVEN\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 567 | cflag &= ~PARODD; |
| 568 | cflag |= PARENB; |
| 569 | break; |
| 570 | case BITS_PARITY_MARK: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 571 | dev_dbg(dev, "%s - parity = MARK\n", __func__); |
Roland Koebler | 4b6181c | 2011-11-09 19:37:08 +0100 | [diff] [blame] | 572 | cflag |= (PARENB|PARODD|CMSPAR); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 573 | break; |
| 574 | case BITS_PARITY_SPACE: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 575 | dev_dbg(dev, "%s - parity = SPACE\n", __func__); |
Roland Koebler | 4b6181c | 2011-11-09 19:37:08 +0100 | [diff] [blame] | 576 | cflag &= ~PARODD; |
| 577 | cflag |= (PARENB|CMSPAR); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 578 | break; |
| 579 | default: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 580 | dev_dbg(dev, "%s - Unknown parity mode, disabling parity\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 581 | cflag &= ~PARENB; |
| 582 | bits &= ~BITS_PARITY_MASK; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 583 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 584 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | } |
| 586 | |
| 587 | cflag &= ~CSTOPB; |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 588 | switch (bits & BITS_STOP_MASK) { |
| 589 | case BITS_STOP_1: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 590 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 591 | break; |
| 592 | case BITS_STOP_1_5: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 593 | dev_dbg(dev, "%s - stop bits = 1.5 (not supported, using 1 stop bit)\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 594 | bits &= ~BITS_STOP_MASK; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 595 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 596 | break; |
| 597 | case BITS_STOP_2: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 598 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 599 | cflag |= CSTOPB; |
| 600 | break; |
| 601 | default: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 602 | dev_dbg(dev, "%s - Unknown number of stop bits, using 1 stop bit\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 603 | bits &= ~BITS_STOP_MASK; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 604 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 605 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | } |
| 607 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 608 | cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 609 | if (modem_ctl[0] & 0x0008) { |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 610 | dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 611 | cflag |= CRTSCTS; |
| 612 | } else { |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 613 | dev_dbg(dev, "%s - flow control = NONE\n", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 614 | cflag &= ~CRTSCTS; |
| 615 | } |
| 616 | |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 617 | *cflagp = cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | } |
| 619 | |
Johan Hovold | e599087 | 2012-01-16 00:36:51 +0100 | [diff] [blame] | 620 | /* |
| 621 | * CP2101 supports the following baud rates: |
| 622 | * |
| 623 | * 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 14400, 19200, 28800, |
| 624 | * 38400, 56000, 57600, 115200, 128000, 230400, 460800, 921600 |
| 625 | * |
| 626 | * CP2102 and CP2103 support the following additional rates: |
| 627 | * |
| 628 | * 4000, 16000, 51200, 64000, 76800, 153600, 250000, 256000, 500000, |
| 629 | * 576000 |
| 630 | * |
| 631 | * The device will map a requested rate to a supported one, but the result |
| 632 | * of requests for rates greater than 1053257 is undefined (see AN205). |
| 633 | * |
| 634 | * CP2104, CP2105 and CP2110 support most rates up to 2M, 921k and 1M baud, |
| 635 | * respectively, with an error less than 1%. The actual rates are determined |
| 636 | * by |
| 637 | * |
| 638 | * div = round(freq / (2 x prescale x request)) |
| 639 | * actual = freq / (2 x prescale x div) |
| 640 | * |
| 641 | * For CP2104 and CP2105 freq is 48Mhz and prescale is 4 for request <= 365bps |
| 642 | * or 1 otherwise. |
| 643 | * For CP2110 freq is 24Mhz and prescale is 4 for request <= 300bps or 1 |
| 644 | * otherwise. |
| 645 | */ |
| 646 | static void cp210x_change_speed(struct tty_struct *tty, |
| 647 | struct usb_serial_port *port, struct ktermios *old_termios) |
| 648 | { |
| 649 | u32 baud; |
| 650 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 651 | baud = tty->termios.c_ospeed; |
Johan Hovold | e599087 | 2012-01-16 00:36:51 +0100 | [diff] [blame] | 652 | |
Johan Hovold | d1620ca | 2012-01-16 00:36:53 +0100 | [diff] [blame] | 653 | /* This maps the requested rate to a rate valid on cp2102 or cp2103, |
| 654 | * or to an arbitrary rate in [1M,2M]. |
Johan Hovold | e599087 | 2012-01-16 00:36:51 +0100 | [diff] [blame] | 655 | * |
| 656 | * NOTE: B0 is not implemented. |
| 657 | */ |
| 658 | baud = cp210x_quantise_baudrate(baud); |
| 659 | |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 660 | dev_dbg(&port->dev, "%s - setting baud rate to %u\n", __func__, baud); |
Johan Hovold | e599087 | 2012-01-16 00:36:51 +0100 | [diff] [blame] | 661 | if (cp210x_set_config(port, CP210X_SET_BAUDRATE, &baud, |
| 662 | sizeof(baud))) { |
| 663 | dev_warn(&port->dev, "failed to set baud rate to %u\n", baud); |
| 664 | if (old_termios) |
| 665 | baud = old_termios->c_ospeed; |
| 666 | else |
| 667 | baud = 9600; |
| 668 | } |
| 669 | |
| 670 | tty_encode_baud_rate(tty, baud, baud); |
| 671 | } |
| 672 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 673 | static void cp210x_set_termios(struct tty_struct *tty, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 674 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | { |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 676 | struct device *dev = &port->dev; |
Alan Cox | 9ab0f20 | 2007-10-18 01:24:24 -0700 | [diff] [blame] | 677 | unsigned int cflag, old_cflag; |
Johan Hovold | 34b76fc | 2012-01-16 00:36:49 +0100 | [diff] [blame] | 678 | unsigned int bits; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 679 | unsigned int modem_ctl[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 681 | cflag = tty->termios.c_cflag; |
Alan Cox | 01e96d2 | 2007-07-26 18:54:12 +0100 | [diff] [blame] | 682 | old_cflag = old_termios->c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 684 | if (tty->termios.c_ospeed != old_termios->c_ospeed) |
Johan Hovold | e599087 | 2012-01-16 00:36:51 +0100 | [diff] [blame] | 685 | cp210x_change_speed(tty, port, old_termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 687 | /* If the number of data bits is to be updated */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | if ((cflag & CSIZE) != (old_cflag & CSIZE)) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 689 | cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | bits &= ~BITS_DATA_MASK; |
| 691 | switch (cflag & CSIZE) { |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 692 | case CS5: |
| 693 | bits |= BITS_DATA_5; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 694 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 695 | break; |
| 696 | case CS6: |
| 697 | bits |= BITS_DATA_6; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 698 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 699 | break; |
| 700 | case CS7: |
| 701 | bits |= BITS_DATA_7; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 702 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 703 | break; |
| 704 | case CS8: |
| 705 | bits |= BITS_DATA_8; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 706 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 707 | break; |
| 708 | /*case CS9: |
| 709 | bits |= BITS_DATA_9; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 710 | dev_dbg(dev, "%s - data bits = 9\n", __func__); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 711 | break;*/ |
| 712 | default: |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 713 | dev_dbg(dev, "cp210x driver does not support the number of bits requested, using 8 bit mode\n"); |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 714 | bits |= BITS_DATA_8; |
| 715 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | } |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 717 | if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 718 | dev_dbg(dev, "Number of data bits requested not supported by device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | } |
| 720 | |
Roland Koebler | 4b6181c | 2011-11-09 19:37:08 +0100 | [diff] [blame] | 721 | if ((cflag & (PARENB|PARODD|CMSPAR)) != |
| 722 | (old_cflag & (PARENB|PARODD|CMSPAR))) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 723 | cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | bits &= ~BITS_PARITY_MASK; |
| 725 | if (cflag & PARENB) { |
Roland Koebler | 4b6181c | 2011-11-09 19:37:08 +0100 | [diff] [blame] | 726 | if (cflag & CMSPAR) { |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 727 | if (cflag & PARODD) { |
| 728 | bits |= BITS_PARITY_MARK; |
| 729 | dev_dbg(dev, "%s - parity = MARK\n", __func__); |
| 730 | } else { |
| 731 | bits |= BITS_PARITY_SPACE; |
| 732 | dev_dbg(dev, "%s - parity = SPACE\n", __func__); |
| 733 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | } else { |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 735 | if (cflag & PARODD) { |
| 736 | bits |= BITS_PARITY_ODD; |
| 737 | dev_dbg(dev, "%s - parity = ODD\n", __func__); |
| 738 | } else { |
| 739 | bits |= BITS_PARITY_EVEN; |
| 740 | dev_dbg(dev, "%s - parity = EVEN\n", __func__); |
| 741 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | } |
| 743 | } |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 744 | if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 745 | dev_dbg(dev, "Parity mode not supported by device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | } |
| 747 | |
| 748 | if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 749 | cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | bits &= ~BITS_STOP_MASK; |
| 751 | if (cflag & CSTOPB) { |
| 752 | bits |= BITS_STOP_2; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 753 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | } else { |
| 755 | bits |= BITS_STOP_1; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 756 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | } |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 758 | if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 759 | dev_dbg(dev, "Number of stop bits requested not supported by device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | } |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 761 | |
| 762 | if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 763 | cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 764 | dev_dbg(dev, "%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n", |
| 765 | __func__, modem_ctl[0], modem_ctl[1], |
| 766 | modem_ctl[2], modem_ctl[3]); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 767 | |
| 768 | if (cflag & CRTSCTS) { |
| 769 | modem_ctl[0] &= ~0x7B; |
| 770 | modem_ctl[0] |= 0x09; |
| 771 | modem_ctl[1] = 0x80; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 772 | dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 773 | } else { |
| 774 | modem_ctl[0] &= ~0x7B; |
| 775 | modem_ctl[0] |= 0x01; |
| 776 | modem_ctl[1] |= 0x40; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 777 | dev_dbg(dev, "%s - flow control = NONE\n", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 778 | } |
| 779 | |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 780 | dev_dbg(dev, "%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n", |
| 781 | __func__, modem_ctl[0], modem_ctl[1], |
| 782 | modem_ctl[2], modem_ctl[3]); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 783 | cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 784 | } |
| 785 | |
| 786 | } |
| 787 | |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 788 | static int cp210x_tiocmset(struct tty_struct *tty, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 789 | unsigned int set, unsigned int clear) |
| 790 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 791 | struct usb_serial_port *port = tty->driver_data; |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 792 | return cp210x_tiocmset_port(port, set, clear); |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 793 | } |
| 794 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 795 | static int cp210x_tiocmset_port(struct usb_serial_port *port, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 796 | unsigned int set, unsigned int clear) |
| 797 | { |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 798 | unsigned int control = 0; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 799 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 800 | if (set & TIOCM_RTS) { |
| 801 | control |= CONTROL_RTS; |
| 802 | control |= CONTROL_WRITE_RTS; |
| 803 | } |
| 804 | if (set & TIOCM_DTR) { |
| 805 | control |= CONTROL_DTR; |
| 806 | control |= CONTROL_WRITE_DTR; |
| 807 | } |
| 808 | if (clear & TIOCM_RTS) { |
| 809 | control &= ~CONTROL_RTS; |
| 810 | control |= CONTROL_WRITE_RTS; |
| 811 | } |
| 812 | if (clear & TIOCM_DTR) { |
| 813 | control &= ~CONTROL_DTR; |
| 814 | control |= CONTROL_WRITE_DTR; |
| 815 | } |
| 816 | |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 817 | dev_dbg(&port->dev, "%s - control = 0x%.4x\n", __func__, control); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 818 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 819 | return cp210x_set_config(port, CP210X_SET_MHS, &control, 2); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 820 | } |
| 821 | |
Alan Cox | d94c7bd | 2009-10-28 21:12:33 +0100 | [diff] [blame] | 822 | static void cp210x_dtr_rts(struct usb_serial_port *p, int on) |
| 823 | { |
| 824 | if (on) |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 825 | cp210x_tiocmset_port(p, TIOCM_DTR|TIOCM_RTS, 0); |
Alan Cox | d94c7bd | 2009-10-28 21:12:33 +0100 | [diff] [blame] | 826 | else |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 827 | cp210x_tiocmset_port(p, 0, TIOCM_DTR|TIOCM_RTS); |
Alan Cox | d94c7bd | 2009-10-28 21:12:33 +0100 | [diff] [blame] | 828 | } |
| 829 | |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 830 | static int cp210x_tiocmget(struct tty_struct *tty) |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 831 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 832 | struct usb_serial_port *port = tty->driver_data; |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 833 | unsigned int control; |
| 834 | int result; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 835 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 836 | cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 837 | |
| 838 | result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0) |
| 839 | |((control & CONTROL_RTS) ? TIOCM_RTS : 0) |
| 840 | |((control & CONTROL_CTS) ? TIOCM_CTS : 0) |
| 841 | |((control & CONTROL_DSR) ? TIOCM_DSR : 0) |
| 842 | |((control & CONTROL_RING)? TIOCM_RI : 0) |
| 843 | |((control & CONTROL_DCD) ? TIOCM_CD : 0); |
| 844 | |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 845 | dev_dbg(&port->dev, "%s - control = 0x%.2x\n", __func__, control); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 846 | |
| 847 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | } |
| 849 | |
Johan Hovold | 4f2ab88 | 2012-10-29 10:56:19 +0100 | [diff] [blame] | 850 | static void cp210x_break_ctl(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 852 | struct usb_serial_port *port = tty->driver_data; |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 853 | unsigned int state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | if (break_state == 0) |
| 856 | state = BREAK_OFF; |
| 857 | else |
| 858 | state = BREAK_ON; |
Greg Kroah-Hartman | 660f3b1 | 2012-09-13 17:18:13 -0700 | [diff] [blame] | 859 | dev_dbg(&port->dev, "%s - turning break %s\n", __func__, |
| 860 | state == BREAK_OFF ? "off" : "on"); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 861 | cp210x_set_config(port, CP210X_SET_BREAK, &state, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | } |
| 863 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 864 | static int cp210x_startup(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 865 | { |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 866 | struct usb_host_interface *cur_altsetting; |
| 867 | struct cp210x_serial_private *spriv; |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 868 | |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 869 | spriv = kzalloc(sizeof(*spriv), GFP_KERNEL); |
| 870 | if (!spriv) |
| 871 | return -ENOMEM; |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 872 | |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 873 | cur_altsetting = serial->interface->cur_altsetting; |
| 874 | spriv->bInterfaceNumber = cur_altsetting->desc.bInterfaceNumber; |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 875 | |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 876 | usb_set_serial_data(serial, spriv); |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 877 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | return 0; |
| 879 | } |
| 880 | |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 881 | static void cp210x_release(struct usb_serial *serial) |
| 882 | { |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 883 | struct cp210x_serial_private *spriv; |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 884 | |
Johan Hovold | 4295fe7 | 2012-10-15 15:47:20 +0200 | [diff] [blame] | 885 | spriv = usb_get_serial_data(serial); |
| 886 | kfree(spriv); |
Preston Fick | a5360a5 | 2012-02-24 13:42:39 -0600 | [diff] [blame] | 887 | } |
| 888 | |
Greg Kroah-Hartman | 68e2411 | 2012-05-08 15:46:14 -0700 | [diff] [blame] | 889 | module_usb_serial_driver(serial_drivers, id_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | |
| 891 | MODULE_DESCRIPTION(DRIVER_DESC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | MODULE_LICENSE("GPL"); |