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 | |
| 27 | /* |
| 28 | * Version Information |
| 29 | */ |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 30 | #define DRIVER_VERSION "v0.09" |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 31 | #define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
| 33 | /* |
| 34 | * Function Prototypes |
| 35 | */ |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 36 | static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 37 | static void cp210x_close(struct usb_serial_port *); |
| 38 | static void cp210x_get_termios(struct tty_struct *, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 39 | struct usb_serial_port *port); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 40 | static void cp210x_get_termios_port(struct usb_serial_port *port, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 41 | unsigned int *cflagp, unsigned int *baudp); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 42 | static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 43 | struct ktermios*); |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 44 | static int cp210x_tiocmget(struct tty_struct *); |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame^] | 45 | static int cp210x_tiocmset(struct tty_struct *, unsigned int, unsigned int); |
| 46 | static int cp210x_tiocmset_port(struct usb_serial_port *port, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 47 | unsigned int, unsigned int); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 48 | static void cp210x_break_ctl(struct tty_struct *, int); |
| 49 | static int cp210x_startup(struct usb_serial *); |
Alan Cox | d94c7bd | 2009-10-28 21:12:33 +0100 | [diff] [blame] | 50 | static void cp210x_dtr_rts(struct usb_serial_port *p, int on); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | static int debug; |
| 53 | |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 54 | static const struct usb_device_id id_table[] = { |
DJ Delorie | 2f1136d | 2010-09-17 11:09:06 -0400 | [diff] [blame] | 55 | { USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */ |
M Kondrin | 5091b58 | 2008-11-14 13:02:45 +0300 | [diff] [blame] | 56 | { USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */ |
Craig Shelley | 59fba74 | 2008-04-12 16:15:54 +0100 | [diff] [blame] | 57 | { 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] | 58 | { 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] | 59 | { USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */ |
Edouard Lafargue | 1f4f714 | 2007-09-25 10:15:36 +0200 | [diff] [blame] | 60 | { USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 61 | { USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 62 | { USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */ |
| 63 | { USB_DEVICE(0x0BED, 0x1101) }, /* MEI series 2000 Combo Acceptor */ |
Craig Shelley | 198b951 | 2005-08-28 09:51:15 +0100 | [diff] [blame] | 64 | { USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */ |
Martin Kusserow | 014840e | 2007-12-21 12:02:17 +0100 | [diff] [blame] | 65 | { USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */ |
Craig Shelley | 59fba74 | 2008-04-12 16:15:54 +0100 | [diff] [blame] | 66 | { USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */ |
Craig Shelley | 198b951 | 2005-08-28 09:51:15 +0100 | [diff] [blame] | 67 | { USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 68 | { USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */ |
| 69 | { USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 70 | { USB_DEVICE(0x10C4, 0x0F91) }, /* Vstabi */ |
Amit Kucheria | 0601e11 | 2009-07-06 14:19:59 +0300 | [diff] [blame] | 71 | { USB_DEVICE(0x10C4, 0x1101) }, /* Arkham Technology DS101 Bus Monitor */ |
| 72 | { USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */ |
Craig Shelley | 5de8b3a | 2008-01-03 12:45:59 +0000 | [diff] [blame] | 73 | { USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */ |
Craig Shelley | 59224f5 | 2006-03-11 11:29:02 +0000 | [diff] [blame] | 74 | { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 75 | { USB_DEVICE(0x10C4, 0x8044) }, /* Cygnal Debug Adapter */ |
| 76 | { USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */ |
Craig Shelley | 92f5cae | 2007-04-20 14:37:17 +0100 | [diff] [blame] | 77 | { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */ |
Damir N Abdullin | 9a18e75 | 2008-10-30 13:52:38 -0700 | [diff] [blame] | 78 | { USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */ |
Vitja Makarov | 212a4b4 | 2006-05-31 00:40:06 +0400 | [diff] [blame] | 79 | { USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 80 | { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 81 | { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */ |
| 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 */ |
Jason Detring | 0bf7a81 | 2010-08-26 15:08:54 -0500 | [diff] [blame] | 90 | { USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 91 | { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 92 | { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */ |
Robert M. Kenney | c653566 | 2009-02-26 14:58:39 -0500 | [diff] [blame] | 93 | { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ |
Bernhard Beck | 96623697 | 2008-05-11 09:23:13 -0700 | [diff] [blame] | 94 | { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ |
Craig Shelley | 59fba74 | 2008-04-12 16:15:54 +0100 | [diff] [blame] | 95 | { USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 96 | { USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */ |
Bjorn Schneider | 78001e3 | 2006-10-28 12:42:04 +0200 | [diff] [blame] | 97 | { USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */ |
| 98 | { USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */ |
Jeff Long | 8be27c2 | 2007-11-28 11:02:09 -0500 | [diff] [blame] | 99 | { USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */ |
Alan Cox | bd07c55 | 2010-02-08 10:10:44 +0000 | [diff] [blame] | 100 | { USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 101 | { USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */ |
Bjorn Schneider | 78001e3 | 2006-10-28 12:42:04 +0200 | [diff] [blame] | 102 | { USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */ |
Tomasz K | 877e262 | 2009-01-04 12:47:11 +0100 | [diff] [blame] | 103 | { USB_DEVICE(0x10C4, 0x822B) }, /* Modem EDGE(GSM) Comander 2 */ |
Wolfgang Glas | 95bec45 | 2009-01-15 23:11:53 +0100 | [diff] [blame] | 104 | { USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demostration module */ |
Alan Cox | bd07c55 | 2010-02-08 10:10:44 +0000 | [diff] [blame] | 105 | { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesys ETRX2USB */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 106 | { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */ |
Craig Shelley | ba0f332 | 2008-09-04 21:28:21 +0100 | [diff] [blame] | 107 | { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */ |
Craig Shelley | 8bf16ba | 2009-07-12 21:52:33 +0100 | [diff] [blame] | 108 | { USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */ |
Craig Shelley | 881e3c9 | 2008-11-09 20:17:54 +0000 | [diff] [blame] | 109 | { USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */ |
Craig Shelley | faea63f | 2011-01-02 21:51:46 +0000 | [diff] [blame] | 110 | { USB_DEVICE(0x10C4, 0x83D8) }, /* DekTec DTA Plus VHF/UHF Booster/Attenuator */ |
Craig Shelley | 8bf16ba | 2009-07-12 21:52:33 +0100 | [diff] [blame] | 111 | { USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */ |
Craig Shelley | faea63f | 2011-01-02 21:51:46 +0000 | [diff] [blame] | 112 | { USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */ |
Alex Stephens | d23bac9 | 2009-03-17 00:06:19 +0000 | [diff] [blame] | 113 | { USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */ |
Craig Shelley | 541e05e | 2010-08-23 20:50:57 +0100 | [diff] [blame] | 114 | { USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */ |
Craig Shelley | e988fc8 | 2006-01-20 00:06:19 +0000 | [diff] [blame] | 115 | { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */ |
Craig Shelley | 61926b9 | 2006-10-12 22:09:56 +0100 | [diff] [blame] | 116 | { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */ |
Craig Shelley | eefd902 | 2010-05-15 13:36:38 +0100 | [diff] [blame] | 117 | { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */ |
Craig Shelley | 5de8b3a | 2008-01-03 12:45:59 +0000 | [diff] [blame] | 118 | { USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */ |
| 119 | { USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */ |
| 120 | { USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */ |
| 121 | { USB_DEVICE(0x10C4, 0xF004) }, /* Elan Digital Systems USBcount50 */ |
Pozsar Balazs | ebaf494 | 2007-02-16 12:47:49 +0100 | [diff] [blame] | 122 | { USB_DEVICE(0x10C5, 0xEA61) }, /* Silicon Labs MobiData GPRS USB Modem */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 123 | { USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */ |
Johannes Hoelzl | e05998d | 2006-12-02 16:54:27 +0100 | [diff] [blame] | 124 | { USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */ |
Craig Shelley | b7c7cbc | 2009-06-11 13:52:31 +0100 | [diff] [blame] | 125 | { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */ |
Craig Shelley | 5de8b3a | 2008-01-03 12:45:59 +0000 | [diff] [blame] | 126 | { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ |
Josef Balatka | b0ce84d | 2005-11-17 09:47:24 -0800 | [diff] [blame] | 127 | { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */ |
Alessio Igor Bogani | 356c5a4 | 2010-07-27 23:05:14 +0200 | [diff] [blame] | 128 | { USB_DEVICE(0x16DC, 0x0010) }, /* W-IE-NE-R Plein & Baus GmbH PL512 Power Supply */ |
| 129 | { USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */ |
| 130 | { USB_DEVICE(0x16DC, 0x0012) }, /* W-IE-NE-R Plein & Baus GmbH MPOD Multi Channel Power Supply */ |
| 131 | { USB_DEVICE(0x16DC, 0x0015) }, /* W-IE-NE-R Plein & Baus GmbH CML Control, Monitoring and Data Logger */ |
Craig Shelley | 541e05e | 2010-08-23 20:50:57 +0100 | [diff] [blame] | 132 | { USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */ |
| 133 | { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */ |
| 134 | { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ |
Anders Larsen | 93ad03d | 2010-10-06 23:46:25 +0200 | [diff] [blame] | 135 | { USB_DEVICE(0x1BE3, 0x07A6) }, /* WAGO 750-923 USB Service Cable */ |
Craig Shelley | 541e05e | 2010-08-23 20:50:57 +0100 | [diff] [blame] | 136 | { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */ |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 137 | { } /* Terminating Entry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | }; |
| 139 | |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 140 | MODULE_DEVICE_TABLE(usb, id_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 142 | static struct usb_driver cp210x_driver = { |
| 143 | .name = "cp210x", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | .probe = usb_serial_probe, |
| 145 | .disconnect = usb_serial_disconnect, |
| 146 | .id_table = id_table, |
Greg Kroah-Hartman | ba9dc65 | 2005-11-16 13:41:28 -0800 | [diff] [blame] | 147 | .no_dynamic_id = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | }; |
| 149 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 150 | static struct usb_serial_driver cp210x_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 151 | .driver = { |
| 152 | .owner = THIS_MODULE, |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 153 | .name = "cp210x", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 154 | }, |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 155 | .usb_driver = &cp210x_driver, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | .id_table = id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | .num_ports = 1, |
Johan Hovold | aea006b | 2010-03-17 23:00:39 +0100 | [diff] [blame] | 158 | .bulk_in_size = 256, |
Johan Hovold | d4e598f | 2010-03-17 23:00:38 +0100 | [diff] [blame] | 159 | .bulk_out_size = 256, |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 160 | .open = cp210x_open, |
| 161 | .close = cp210x_close, |
| 162 | .break_ctl = cp210x_break_ctl, |
| 163 | .set_termios = cp210x_set_termios, |
| 164 | .tiocmget = cp210x_tiocmget, |
| 165 | .tiocmset = cp210x_tiocmset, |
| 166 | .attach = cp210x_startup, |
Libor Pechacek | d14fc1a | 2011-01-14 14:30:21 +0100 | [diff] [blame] | 167 | .dtr_rts = cp210x_dtr_rts |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | }; |
| 169 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 170 | /* Config request types */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | #define REQTYPE_HOST_TO_DEVICE 0x41 |
| 172 | #define REQTYPE_DEVICE_TO_HOST 0xc1 |
| 173 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 174 | /* Config request codes */ |
| 175 | #define CP210X_IFC_ENABLE 0x00 |
| 176 | #define CP210X_SET_BAUDDIV 0x01 |
| 177 | #define CP210X_GET_BAUDDIV 0x02 |
| 178 | #define CP210X_SET_LINE_CTL 0x03 |
| 179 | #define CP210X_GET_LINE_CTL 0x04 |
| 180 | #define CP210X_SET_BREAK 0x05 |
| 181 | #define CP210X_IMM_CHAR 0x06 |
| 182 | #define CP210X_SET_MHS 0x07 |
| 183 | #define CP210X_GET_MDMSTS 0x08 |
| 184 | #define CP210X_SET_XON 0x09 |
| 185 | #define CP210X_SET_XOFF 0x0A |
| 186 | #define CP210X_SET_EVENTMASK 0x0B |
| 187 | #define CP210X_GET_EVENTMASK 0x0C |
| 188 | #define CP210X_SET_CHAR 0x0D |
| 189 | #define CP210X_GET_CHARS 0x0E |
| 190 | #define CP210X_GET_PROPS 0x0F |
| 191 | #define CP210X_GET_COMM_STATUS 0x10 |
| 192 | #define CP210X_RESET 0x11 |
| 193 | #define CP210X_PURGE 0x12 |
| 194 | #define CP210X_SET_FLOW 0x13 |
| 195 | #define CP210X_GET_FLOW 0x14 |
| 196 | #define CP210X_EMBED_EVENTS 0x15 |
| 197 | #define CP210X_GET_EVENTSTATE 0x16 |
| 198 | #define CP210X_SET_CHARS 0x19 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 200 | /* CP210X_IFC_ENABLE */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | #define UART_ENABLE 0x0001 |
| 202 | #define UART_DISABLE 0x0000 |
| 203 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 204 | /* CP210X_(SET|GET)_BAUDDIV */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | #define BAUD_RATE_GEN_FREQ 0x384000 |
| 206 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 207 | /* CP210X_(SET|GET)_LINE_CTL */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | #define BITS_DATA_MASK 0X0f00 |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 209 | #define BITS_DATA_5 0X0500 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | #define BITS_DATA_6 0X0600 |
| 211 | #define BITS_DATA_7 0X0700 |
| 212 | #define BITS_DATA_8 0X0800 |
| 213 | #define BITS_DATA_9 0X0900 |
| 214 | |
| 215 | #define BITS_PARITY_MASK 0x00f0 |
| 216 | #define BITS_PARITY_NONE 0x0000 |
| 217 | #define BITS_PARITY_ODD 0x0010 |
| 218 | #define BITS_PARITY_EVEN 0x0020 |
| 219 | #define BITS_PARITY_MARK 0x0030 |
| 220 | #define BITS_PARITY_SPACE 0x0040 |
| 221 | |
| 222 | #define BITS_STOP_MASK 0x000f |
| 223 | #define BITS_STOP_1 0x0000 |
| 224 | #define BITS_STOP_1_5 0x0001 |
| 225 | #define BITS_STOP_2 0x0002 |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 226 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 227 | /* CP210X_SET_BREAK */ |
Craig Shelley | 7291679 | 2010-08-18 22:13:39 +0100 | [diff] [blame] | 228 | #define BREAK_ON 0x0001 |
| 229 | #define BREAK_OFF 0x0000 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
Craig Shelley | 93ef1f1 | 2009-06-11 13:53:30 +0100 | [diff] [blame] | 231 | /* CP210X_(SET_MHS|GET_MDMSTS) */ |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 232 | #define CONTROL_DTR 0x0001 |
| 233 | #define CONTROL_RTS 0x0002 |
| 234 | #define CONTROL_CTS 0x0010 |
| 235 | #define CONTROL_DSR 0x0020 |
| 236 | #define CONTROL_RING 0x0040 |
| 237 | #define CONTROL_DCD 0x0080 |
| 238 | #define CONTROL_WRITE_DTR 0x0100 |
| 239 | #define CONTROL_WRITE_RTS 0x0200 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 241 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 242 | * cp210x_get_config |
| 243 | * Reads from the CP210x configuration registers |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 244 | * 'size' is specified in bytes. |
| 245 | * 'data' is a pointer to a pre-allocated array of integers large |
| 246 | * enough to hold 'size' bytes (with 4 bytes to each integer) |
| 247 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 248 | static int cp210x_get_config(struct usb_serial_port *port, u8 request, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 249 | unsigned int *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | { |
| 251 | struct usb_serial *serial = port->serial; |
Al Viro | 53ebb3b | 2007-02-09 16:39:55 +0000 | [diff] [blame] | 252 | __le32 *buf; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 253 | int result, i, length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 255 | /* Number of integers required to contain the array */ |
| 256 | length = (((size - 1) | 3) + 1)/4; |
| 257 | |
Al Viro | 53ebb3b | 2007-02-09 16:39:55 +0000 | [diff] [blame] | 258 | buf = kcalloc(length, sizeof(__le32), GFP_KERNEL); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 259 | if (!buf) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 260 | dev_err(&port->dev, "%s - out of memory.\n", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 261 | return -ENOMEM; |
| 262 | } |
| 263 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 264 | /* Issue the request, attempting to read 'size' bytes */ |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 265 | result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | request, REQTYPE_DEVICE_TO_HOST, 0x0000, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 267 | 0, buf, size, 300); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 269 | /* Convert data into an array of integers */ |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 270 | for (i = 0; i < length; i++) |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 271 | data[i] = le32_to_cpu(buf[i]); |
| 272 | |
| 273 | kfree(buf); |
| 274 | |
| 275 | if (result != size) { |
Craig Shelley | 9732495 | 2009-02-26 22:21:51 +0000 | [diff] [blame] | 276 | dbg("%s - Unable to send config request, " |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 277 | "request=0x%x size=%d result=%d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 278 | __func__, request, size, result); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 279 | return -EPROTO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | } |
| 281 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | return 0; |
| 283 | } |
| 284 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 285 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 286 | * cp210x_set_config |
| 287 | * Writes to the CP210x configuration registers |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 288 | * Values less than 16 bits wide are sent directly |
| 289 | * 'size' is specified in bytes. |
| 290 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 291 | static int cp210x_set_config(struct usb_serial_port *port, u8 request, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 292 | unsigned int *data, int size) |
| 293 | { |
| 294 | struct usb_serial *serial = port->serial; |
Al Viro | 53ebb3b | 2007-02-09 16:39:55 +0000 | [diff] [blame] | 295 | __le32 *buf; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 296 | int result, i, length; |
| 297 | |
| 298 | /* Number of integers required to contain the array */ |
| 299 | length = (((size - 1) | 3) + 1)/4; |
| 300 | |
Al Viro | 53ebb3b | 2007-02-09 16:39:55 +0000 | [diff] [blame] | 301 | buf = kmalloc(length * sizeof(__le32), GFP_KERNEL); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 302 | if (!buf) { |
| 303 | dev_err(&port->dev, "%s - out of memory.\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 304 | __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 305 | return -ENOMEM; |
| 306 | } |
| 307 | |
| 308 | /* Array of integers into bytes */ |
| 309 | for (i = 0; i < length; i++) |
| 310 | buf[i] = cpu_to_le32(data[i]); |
| 311 | |
| 312 | if (size > 2) { |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 313 | result = usb_control_msg(serial->dev, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 314 | usb_sndctrlpipe(serial->dev, 0), |
| 315 | request, REQTYPE_HOST_TO_DEVICE, 0x0000, |
| 316 | 0, buf, size, 300); |
| 317 | } else { |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 318 | result = usb_control_msg(serial->dev, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 319 | usb_sndctrlpipe(serial->dev, 0), |
| 320 | request, REQTYPE_HOST_TO_DEVICE, data[0], |
| 321 | 0, NULL, 0, 300); |
| 322 | } |
| 323 | |
| 324 | kfree(buf); |
| 325 | |
| 326 | if ((size > 2 && result != size) || result < 0) { |
Craig Shelley | 9732495 | 2009-02-26 22:21:51 +0000 | [diff] [blame] | 327 | dbg("%s - Unable to send request, " |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 328 | "request=0x%x size=%d result=%d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 329 | __func__, request, size, result); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 330 | return -EPROTO; |
| 331 | } |
| 332 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 333 | return 0; |
| 334 | } |
| 335 | |
| 336 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 337 | * cp210x_set_config_single |
| 338 | * Convenience function for calling cp210x_set_config on single data values |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 339 | * without requiring an integer pointer |
| 340 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 341 | static inline int cp210x_set_config_single(struct usb_serial_port *port, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 342 | u8 request, unsigned int data) |
| 343 | { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 344 | return cp210x_set_config(port, request, &data, 2); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 345 | } |
| 346 | |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 347 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 348 | * cp210x_quantise_baudrate |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 349 | * Quantises the baud rate as per AN205 Table 1 |
| 350 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 351 | static unsigned int cp210x_quantise_baudrate(unsigned int baud) { |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 352 | if (baud <= 56) baud = 0; |
| 353 | else if (baud <= 300) baud = 300; |
| 354 | else if (baud <= 600) baud = 600; |
| 355 | else if (baud <= 1200) baud = 1200; |
| 356 | else if (baud <= 1800) baud = 1800; |
| 357 | else if (baud <= 2400) baud = 2400; |
| 358 | else if (baud <= 4000) baud = 4000; |
| 359 | else if (baud <= 4803) baud = 4800; |
| 360 | else if (baud <= 7207) baud = 7200; |
| 361 | else if (baud <= 9612) baud = 9600; |
| 362 | else if (baud <= 14428) baud = 14400; |
| 363 | else if (baud <= 16062) baud = 16000; |
| 364 | else if (baud <= 19250) baud = 19200; |
| 365 | else if (baud <= 28912) baud = 28800; |
| 366 | else if (baud <= 38601) baud = 38400; |
| 367 | else if (baud <= 51558) baud = 51200; |
| 368 | else if (baud <= 56280) baud = 56000; |
| 369 | else if (baud <= 58053) baud = 57600; |
| 370 | else if (baud <= 64111) baud = 64000; |
| 371 | else if (baud <= 77608) baud = 76800; |
| 372 | else if (baud <= 117028) baud = 115200; |
| 373 | else if (baud <= 129347) baud = 128000; |
| 374 | else if (baud <= 156868) baud = 153600; |
| 375 | else if (baud <= 237832) baud = 230400; |
| 376 | else if (baud <= 254234) baud = 250000; |
| 377 | else if (baud <= 273066) baud = 256000; |
| 378 | else if (baud <= 491520) baud = 460800; |
| 379 | else if (baud <= 567138) baud = 500000; |
| 380 | else if (baud <= 670254) baud = 576000; |
| 381 | else if (baud <= 1053257) baud = 921600; |
| 382 | else if (baud <= 1474560) baud = 1228800; |
| 383 | else if (baud <= 2457600) baud = 1843200; |
| 384 | else baud = 3686400; |
| 385 | return baud; |
| 386 | } |
| 387 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 388 | 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] | 389 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | int result; |
| 391 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 392 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 394 | if (cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | dev_err(&port->dev, "%s - Unable to enable UART\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 396 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | return -EPROTO; |
| 398 | } |
| 399 | |
Johan Hovold | a901317 | 2010-05-15 17:53:50 +0200 | [diff] [blame] | 400 | result = usb_serial_generic_open(tty, port); |
Johan Hovold | 2db6c76 | 2010-03-17 23:05:55 +0100 | [diff] [blame] | 401 | if (result) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 404 | /* Configure the termios structure */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 405 | cp210x_get_termios(tty, port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | return 0; |
| 407 | } |
| 408 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 409 | static void cp210x_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 411 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | |
Johan Hovold | f26788d | 2010-03-17 23:00:45 +0100 | [diff] [blame] | 413 | usb_serial_generic_close(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | |
Oliver Neukum | 95bef01 | 2008-01-22 13:56:18 +0100 | [diff] [blame] | 415 | mutex_lock(&port->serial->disc_mutex); |
| 416 | if (!port->serial->disconnected) |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 417 | cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE); |
Oliver Neukum | 95bef01 | 2008-01-22 13:56:18 +0100 | [diff] [blame] | 418 | mutex_unlock(&port->serial->disc_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | } |
| 420 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 421 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 422 | * cp210x_get_termios |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 423 | * Reads the baud rate, data bits, parity, stop bits and flow control mode |
| 424 | * from the device, corrects any unsupported values, and configures the |
| 425 | * termios structure to reflect the state of the device |
| 426 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 427 | static void cp210x_get_termios(struct tty_struct *tty, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 428 | struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | { |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 430 | unsigned int baud; |
| 431 | |
| 432 | if (tty) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 433 | cp210x_get_termios_port(tty->driver_data, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 434 | &tty->termios->c_cflag, &baud); |
| 435 | tty_encode_baud_rate(tty, baud, baud); |
| 436 | } |
| 437 | |
| 438 | else { |
| 439 | unsigned int cflag; |
| 440 | cflag = 0; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 441 | cp210x_get_termios_port(port, &cflag, &baud); |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 442 | } |
| 443 | } |
| 444 | |
| 445 | /* |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 446 | * cp210x_get_termios_port |
| 447 | * 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] | 448 | */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 449 | static void cp210x_get_termios_port(struct usb_serial_port *port, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 450 | unsigned int *cflagp, unsigned int *baudp) |
| 451 | { |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 452 | unsigned int cflag, modem_ctl[4]; |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 453 | unsigned int baud; |
| 454 | unsigned int bits; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 456 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 458 | cp210x_get_config(port, CP210X_GET_BAUDDIV, &baud, 2); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 459 | /* Convert to baudrate */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | if (baud) |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 461 | baud = cp210x_quantise_baudrate((BAUD_RATE_GEN_FREQ + baud/2)/ baud); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 463 | dbg("%s - baud rate = %d", __func__, baud); |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 464 | *baudp = baud; |
Alan Cox | 9ab0f20 | 2007-10-18 01:24:24 -0700 | [diff] [blame] | 465 | |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 466 | cflag = *cflagp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 468 | cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | cflag &= ~CSIZE; |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 470 | switch (bits & BITS_DATA_MASK) { |
| 471 | case BITS_DATA_5: |
| 472 | dbg("%s - data bits = 5", __func__); |
| 473 | cflag |= CS5; |
| 474 | break; |
| 475 | case BITS_DATA_6: |
| 476 | dbg("%s - data bits = 6", __func__); |
| 477 | cflag |= CS6; |
| 478 | break; |
| 479 | case BITS_DATA_7: |
| 480 | dbg("%s - data bits = 7", __func__); |
| 481 | cflag |= CS7; |
| 482 | break; |
| 483 | case BITS_DATA_8: |
| 484 | dbg("%s - data bits = 8", __func__); |
| 485 | cflag |= CS8; |
| 486 | break; |
| 487 | case BITS_DATA_9: |
| 488 | dbg("%s - data bits = 9 (not supported, using 8 data bits)", |
| 489 | __func__); |
| 490 | cflag |= CS8; |
| 491 | bits &= ~BITS_DATA_MASK; |
| 492 | bits |= BITS_DATA_8; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 493 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 494 | break; |
| 495 | default: |
| 496 | dbg("%s - Unknown number of data bits, using 8", __func__); |
| 497 | cflag |= CS8; |
| 498 | bits &= ~BITS_DATA_MASK; |
| 499 | bits |= BITS_DATA_8; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 500 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 501 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | } |
| 503 | |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 504 | switch (bits & BITS_PARITY_MASK) { |
| 505 | case BITS_PARITY_NONE: |
| 506 | dbg("%s - parity = NONE", __func__); |
| 507 | cflag &= ~PARENB; |
| 508 | break; |
| 509 | case BITS_PARITY_ODD: |
| 510 | dbg("%s - parity = ODD", __func__); |
| 511 | cflag |= (PARENB|PARODD); |
| 512 | break; |
| 513 | case BITS_PARITY_EVEN: |
| 514 | dbg("%s - parity = EVEN", __func__); |
| 515 | cflag &= ~PARODD; |
| 516 | cflag |= PARENB; |
| 517 | break; |
| 518 | case BITS_PARITY_MARK: |
| 519 | dbg("%s - parity = MARK (not supported, disabling parity)", |
| 520 | __func__); |
| 521 | cflag &= ~PARENB; |
| 522 | bits &= ~BITS_PARITY_MASK; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 523 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 524 | break; |
| 525 | case BITS_PARITY_SPACE: |
| 526 | dbg("%s - parity = SPACE (not supported, disabling parity)", |
| 527 | __func__); |
| 528 | cflag &= ~PARENB; |
| 529 | bits &= ~BITS_PARITY_MASK; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 530 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 531 | break; |
| 532 | default: |
| 533 | dbg("%s - Unknown parity mode, disabling parity", __func__); |
| 534 | cflag &= ~PARENB; |
| 535 | bits &= ~BITS_PARITY_MASK; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 536 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 537 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | } |
| 539 | |
| 540 | cflag &= ~CSTOPB; |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 541 | switch (bits & BITS_STOP_MASK) { |
| 542 | case BITS_STOP_1: |
| 543 | dbg("%s - stop bits = 1", __func__); |
| 544 | break; |
| 545 | case BITS_STOP_1_5: |
| 546 | dbg("%s - stop bits = 1.5 (not supported, using 1 stop bit)", |
| 547 | __func__); |
| 548 | bits &= ~BITS_STOP_MASK; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 549 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 550 | break; |
| 551 | case BITS_STOP_2: |
| 552 | dbg("%s - stop bits = 2", __func__); |
| 553 | cflag |= CSTOPB; |
| 554 | break; |
| 555 | default: |
| 556 | dbg("%s - Unknown number of stop bits, using 1 stop bit", |
| 557 | __func__); |
| 558 | bits &= ~BITS_STOP_MASK; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 559 | cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 560 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | } |
| 562 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 563 | cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 564 | if (modem_ctl[0] & 0x0008) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 565 | dbg("%s - flow control = CRTSCTS", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 566 | cflag |= CRTSCTS; |
| 567 | } else { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 568 | dbg("%s - flow control = NONE", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 569 | cflag &= ~CRTSCTS; |
| 570 | } |
| 571 | |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 572 | *cflagp = cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | } |
| 574 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 575 | static void cp210x_set_termios(struct tty_struct *tty, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 576 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | { |
Alan Cox | 9ab0f20 | 2007-10-18 01:24:24 -0700 | [diff] [blame] | 578 | unsigned int cflag, old_cflag; |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 579 | unsigned int baud = 0, bits; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 580 | unsigned int modem_ctl[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 582 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 584 | if (!tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | return; |
Alan Cox | 9ab0f20 | 2007-10-18 01:24:24 -0700 | [diff] [blame] | 586 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 587 | tty->termios->c_cflag &= ~CMSPAR; |
| 588 | cflag = tty->termios->c_cflag; |
Alan Cox | 01e96d2 | 2007-07-26 18:54:12 +0100 | [diff] [blame] | 589 | old_cflag = old_termios->c_cflag; |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 590 | baud = cp210x_quantise_baudrate(tty_get_baud_rate(tty)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
| 592 | /* If the baud rate is to be updated*/ |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 593 | if (baud != tty_termios_baud_rate(old_termios) && baud != 0) { |
| 594 | dbg("%s - Setting baud rate to %d baud", __func__, |
| 595 | baud); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 596 | if (cp210x_set_config_single(port, CP210X_SET_BAUDDIV, |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 597 | ((BAUD_RATE_GEN_FREQ + baud/2) / baud))) { |
Joe Perches | 759f363 | 2010-02-05 16:50:08 -0800 | [diff] [blame] | 598 | dbg("Baud rate requested not supported by device"); |
Craig Shelley | ef8b6bc | 2009-02-26 22:19:22 +0000 | [diff] [blame] | 599 | baud = tty_termios_baud_rate(old_termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | } |
| 601 | } |
Alan Cox | 9ab0f20 | 2007-10-18 01:24:24 -0700 | [diff] [blame] | 602 | /* Report back the resulting baud rate */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 603 | tty_encode_baud_rate(tty, baud, baud); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 605 | /* If the number of data bits is to be updated */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | if ((cflag & CSIZE) != (old_cflag & CSIZE)) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 607 | cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | bits &= ~BITS_DATA_MASK; |
| 609 | switch (cflag & CSIZE) { |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 610 | case CS5: |
| 611 | bits |= BITS_DATA_5; |
| 612 | dbg("%s - data bits = 5", __func__); |
| 613 | break; |
| 614 | case CS6: |
| 615 | bits |= BITS_DATA_6; |
| 616 | dbg("%s - data bits = 6", __func__); |
| 617 | break; |
| 618 | case CS7: |
| 619 | bits |= BITS_DATA_7; |
| 620 | dbg("%s - data bits = 7", __func__); |
| 621 | break; |
| 622 | case CS8: |
| 623 | bits |= BITS_DATA_8; |
| 624 | dbg("%s - data bits = 8", __func__); |
| 625 | break; |
| 626 | /*case CS9: |
| 627 | bits |= BITS_DATA_9; |
| 628 | dbg("%s - data bits = 9", __func__); |
| 629 | break;*/ |
| 630 | default: |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 631 | dbg("cp210x driver does not " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | "support the number of bits requested," |
| 633 | " using 8 bit mode\n"); |
| 634 | bits |= BITS_DATA_8; |
| 635 | break; |
| 636 | } |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 637 | if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) |
Craig Shelley | 9732495 | 2009-02-26 22:21:51 +0000 | [diff] [blame] | 638 | dbg("Number of data bits requested " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | "not supported by device\n"); |
| 640 | } |
| 641 | |
| 642 | if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 643 | cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | bits &= ~BITS_PARITY_MASK; |
| 645 | if (cflag & PARENB) { |
| 646 | if (cflag & PARODD) { |
| 647 | bits |= BITS_PARITY_ODD; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 648 | dbg("%s - parity = ODD", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | } else { |
| 650 | bits |= BITS_PARITY_EVEN; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 651 | dbg("%s - parity = EVEN", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | } |
| 653 | } |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 654 | if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) |
Craig Shelley | 9732495 | 2009-02-26 22:21:51 +0000 | [diff] [blame] | 655 | dbg("Parity mode not supported " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | "by device\n"); |
| 657 | } |
| 658 | |
| 659 | if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 660 | cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | bits &= ~BITS_STOP_MASK; |
| 662 | if (cflag & CSTOPB) { |
| 663 | bits |= BITS_STOP_2; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 664 | dbg("%s - stop bits = 2", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | } else { |
| 666 | bits |= BITS_STOP_1; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 667 | dbg("%s - stop bits = 1", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | } |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 669 | if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) |
Craig Shelley | 9732495 | 2009-02-26 22:21:51 +0000 | [diff] [blame] | 670 | dbg("Number of stop bits requested " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | "not supported by device\n"); |
| 672 | } |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 673 | |
| 674 | if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 675 | cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 676 | dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 677 | __func__, modem_ctl[0], modem_ctl[1], |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 678 | modem_ctl[2], modem_ctl[3]); |
| 679 | |
| 680 | if (cflag & CRTSCTS) { |
| 681 | modem_ctl[0] &= ~0x7B; |
| 682 | modem_ctl[0] |= 0x09; |
| 683 | modem_ctl[1] = 0x80; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 684 | dbg("%s - flow control = CRTSCTS", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 685 | } else { |
| 686 | modem_ctl[0] &= ~0x7B; |
| 687 | modem_ctl[0] |= 0x01; |
| 688 | modem_ctl[1] |= 0x40; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 689 | dbg("%s - flow control = NONE", __func__); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 690 | } |
| 691 | |
| 692 | dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 693 | __func__, modem_ctl[0], modem_ctl[1], |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 694 | modem_ctl[2], modem_ctl[3]); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 695 | cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 696 | } |
| 697 | |
| 698 | } |
| 699 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame^] | 700 | static int cp210x_tiocmset (struct tty_struct *tty, |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 701 | unsigned int set, unsigned int clear) |
| 702 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 703 | struct usb_serial_port *port = tty->driver_data; |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame^] | 704 | return cp210x_tiocmset_port(port, set, clear); |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 705 | } |
| 706 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame^] | 707 | static int cp210x_tiocmset_port(struct usb_serial_port *port, |
VomLehn | d2ad67b | 2009-03-12 14:37:42 -0700 | [diff] [blame] | 708 | unsigned int set, unsigned int clear) |
| 709 | { |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 710 | unsigned int control = 0; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 711 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 712 | dbg("%s - port %d", __func__, port->number); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 713 | |
| 714 | if (set & TIOCM_RTS) { |
| 715 | control |= CONTROL_RTS; |
| 716 | control |= CONTROL_WRITE_RTS; |
| 717 | } |
| 718 | if (set & TIOCM_DTR) { |
| 719 | control |= CONTROL_DTR; |
| 720 | control |= CONTROL_WRITE_DTR; |
| 721 | } |
| 722 | if (clear & TIOCM_RTS) { |
| 723 | control &= ~CONTROL_RTS; |
| 724 | control |= CONTROL_WRITE_RTS; |
| 725 | } |
| 726 | if (clear & TIOCM_DTR) { |
| 727 | control &= ~CONTROL_DTR; |
| 728 | control |= CONTROL_WRITE_DTR; |
| 729 | } |
| 730 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 731 | dbg("%s - control = 0x%.4x", __func__, control); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 732 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 733 | return cp210x_set_config(port, CP210X_SET_MHS, &control, 2); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 734 | } |
| 735 | |
Alan Cox | d94c7bd | 2009-10-28 21:12:33 +0100 | [diff] [blame] | 736 | static void cp210x_dtr_rts(struct usb_serial_port *p, int on) |
| 737 | { |
| 738 | if (on) |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame^] | 739 | cp210x_tiocmset_port(p, TIOCM_DTR|TIOCM_RTS, 0); |
Alan Cox | d94c7bd | 2009-10-28 21:12:33 +0100 | [diff] [blame] | 740 | else |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame^] | 741 | cp210x_tiocmset_port(p, 0, TIOCM_DTR|TIOCM_RTS); |
Alan Cox | d94c7bd | 2009-10-28 21:12:33 +0100 | [diff] [blame] | 742 | } |
| 743 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 744 | static int cp210x_tiocmget (struct tty_struct *tty) |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 745 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 746 | struct usb_serial_port *port = tty->driver_data; |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 747 | unsigned int control; |
| 748 | int result; |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 749 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 750 | dbg("%s - port %d", __func__, port->number); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 751 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 752 | cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 753 | |
| 754 | result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0) |
| 755 | |((control & CONTROL_RTS) ? TIOCM_RTS : 0) |
| 756 | |((control & CONTROL_CTS) ? TIOCM_CTS : 0) |
| 757 | |((control & CONTROL_DSR) ? TIOCM_DSR : 0) |
| 758 | |((control & CONTROL_RING)? TIOCM_RI : 0) |
| 759 | |((control & CONTROL_DCD) ? TIOCM_CD : 0); |
| 760 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 761 | dbg("%s - control = 0x%.2x", __func__, control); |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 762 | |
| 763 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | } |
| 765 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 766 | static void cp210x_break_ctl (struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 768 | struct usb_serial_port *port = tty->driver_data; |
Harvey Harrison | b2bdd1f | 2008-05-30 10:29:55 -0700 | [diff] [blame] | 769 | unsigned int state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 771 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | if (break_state == 0) |
| 773 | state = BREAK_OFF; |
| 774 | else |
| 775 | state = BREAK_ON; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 776 | dbg("%s - turning break %s", __func__, |
Alan Cox | ff7eb60 | 2008-07-22 11:10:17 +0100 | [diff] [blame] | 777 | state == BREAK_OFF ? "off" : "on"); |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 778 | cp210x_set_config(port, CP210X_SET_BREAK, &state, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | } |
| 780 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 781 | static int cp210x_startup(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 783 | /* cp210x buffers behave strangely unless device is reset */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | usb_reset_device(serial->dev); |
| 785 | return 0; |
| 786 | } |
| 787 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 788 | static int __init cp210x_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | { |
| 790 | int retval; |
| 791 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 792 | retval = usb_serial_register(&cp210x_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | if (retval) |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 794 | return retval; /* Failed to register */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 796 | retval = usb_register(&cp210x_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | if (retval) { |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 798 | /* Failed to register */ |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 799 | usb_serial_deregister(&cp210x_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | return retval; |
| 801 | } |
| 802 | |
Craig Shelley | 39a66b8 | 2005-05-27 00:09:56 +0100 | [diff] [blame] | 803 | /* Success */ |
Greg Kroah-Hartman | c197a8d | 2008-08-18 13:21:04 -0700 | [diff] [blame] | 804 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
| 805 | DRIVER_DESC "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | return 0; |
| 807 | } |
| 808 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 809 | static void __exit cp210x_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | { |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 811 | usb_deregister(&cp210x_driver); |
| 812 | usb_serial_deregister(&cp210x_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | } |
| 814 | |
Craig Shelley | 4cc27bd | 2009-06-11 13:54:40 +0100 | [diff] [blame] | 815 | module_init(cp210x_init); |
| 816 | module_exit(cp210x_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | |
| 818 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 819 | MODULE_VERSION(DRIVER_VERSION); |
| 820 | MODULE_LICENSE("GPL"); |
| 821 | |
| 822 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 823 | MODULE_PARM_DESC(debug, "Enable verbose debugging messages"); |