2017-11-03 18:28:30 +08:00
|
|
|
// SPDX-License-Identifier: GPL-2.0
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
2009-06-11 20:54:40 +08:00
|
|
|
* Silicon Laboratories CP210x USB to RS232 serial adaptor driver
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
|
* Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk)
|
|
|
|
|
*
|
2005-05-27 07:09:56 +08:00
|
|
|
* Support to set flow control line levels using TIOCMGET and TIOCMSET
|
|
|
|
|
* thanks to Karl Hiramoto karl@hiramoto.org. RTSCTS hardware flow
|
|
|
|
|
* control thanks to Munir Nassar nassarmu@real-time.com
|
|
|
|
|
*
|
2005-04-17 06:20:36 +08:00
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
|
#include <linux/errno.h>
|
|
|
|
|
#include <linux/slab.h>
|
|
|
|
|
#include <linux/tty.h>
|
|
|
|
|
#include <linux/tty_flip.h>
|
|
|
|
|
#include <linux/module.h>
|
|
|
|
|
#include <linux/moduleparam.h>
|
|
|
|
|
#include <linux/usb.h>
|
2008-07-22 18:10:17 +08:00
|
|
|
#include <linux/uaccess.h>
|
2006-07-12 12:22:58 +08:00
|
|
|
#include <linux/usb/serial.h>
|
2016-10-20 22:13:54 +08:00
|
|
|
#include <linux/gpio/driver.h>
|
|
|
|
|
#include <linux/bitops.h>
|
|
|
|
|
#include <linux/mutex.h>
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-06-11 20:54:40 +08:00
|
|
|
#define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver"
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Function Prototypes
|
|
|
|
|
*/
|
2009-09-20 04:13:26 +08:00
|
|
|
static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *);
|
2009-06-11 20:54:40 +08:00
|
|
|
static void cp210x_close(struct usb_serial_port *);
|
2012-10-29 17:56:19 +08:00
|
|
|
static void cp210x_get_termios(struct tty_struct *, struct usb_serial_port *);
|
2009-06-11 20:54:40 +08:00
|
|
|
static void cp210x_get_termios_port(struct usb_serial_port *port,
|
2016-11-21 20:19:31 +08:00
|
|
|
tcflag_t *cflagp, unsigned int *baudp);
|
2012-01-16 07:36:51 +08:00
|
|
|
static void cp210x_change_speed(struct tty_struct *, struct usb_serial_port *,
|
|
|
|
|
struct ktermios *);
|
2009-06-11 20:54:40 +08:00
|
|
|
static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *,
|
2008-07-22 18:09:07 +08:00
|
|
|
struct ktermios*);
|
2015-11-25 06:28:41 +08:00
|
|
|
static bool cp210x_tx_empty(struct usb_serial_port *port);
|
2011-02-15 00:26:14 +08:00
|
|
|
static int cp210x_tiocmget(struct tty_struct *);
|
2011-02-15 00:26:50 +08:00
|
|
|
static int cp210x_tiocmset(struct tty_struct *, unsigned int, unsigned int);
|
|
|
|
|
static int cp210x_tiocmset_port(struct usb_serial_port *port,
|
2009-03-13 05:37:42 +08:00
|
|
|
unsigned int, unsigned int);
|
2009-06-11 20:54:40 +08:00
|
|
|
static void cp210x_break_ctl(struct tty_struct *, int);
|
2016-10-20 22:13:54 +08:00
|
|
|
static int cp210x_attach(struct usb_serial *);
|
|
|
|
|
static void cp210x_disconnect(struct usb_serial *);
|
|
|
|
|
static void cp210x_release(struct usb_serial *);
|
2015-10-29 05:02:34 +08:00
|
|
|
static int cp210x_port_probe(struct usb_serial_port *);
|
|
|
|
|
static int cp210x_port_remove(struct usb_serial_port *);
|
2009-10-29 04:12:33 +08:00
|
|
|
static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2010-01-10 22:34:24 +08:00
|
|
|
static const struct usb_device_id id_table[] = {
|
2010-09-17 23:09:06 +08:00
|
|
|
{ USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */
|
2008-11-14 18:02:45 +08:00
|
|
|
{ USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
|
2008-04-12 23:15:54 +08:00
|
|
|
{ USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
|
2010-08-30 04:51:52 +08:00
|
|
|
{ USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
|
2009-06-11 20:52:31 +08:00
|
|
|
{ USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */
|
2013-07-02 10:56:25 +08:00
|
|
|
{ USB_DEVICE(0x0846, 0x1100) }, /* NetGear Managed Switch M4100 series, M5300 series, M7100 series */
|
2007-09-25 16:15:36 +08:00
|
|
|
{ USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */
|
2009-06-11 20:52:31 +08:00
|
|
|
{ USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */
|
2015-01-22 04:24:27 +08:00
|
|
|
{ USB_DEVICE(0x0908, 0x01FF) }, /* Siemens RUGGEDCOM USB Serial Console */
|
2010-05-15 20:36:38 +08:00
|
|
|
{ USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */
|
|
|
|
|
{ USB_DEVICE(0x0BED, 0x1101) }, /* MEI series 2000 Combo Acceptor */
|
2005-08-28 16:51:15 +08:00
|
|
|
{ USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */
|
2007-12-21 19:02:17 +08:00
|
|
|
{ USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */
|
2008-04-12 23:15:54 +08:00
|
|
|
{ USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */
|
2013-01-31 20:37:05 +08:00
|
|
|
{ USB_DEVICE(0x0FDE, 0xCA05) }, /* OWL Wireless Electricity Monitor CM-160 */
|
2005-08-28 16:51:15 +08:00
|
|
|
{ USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */
|
2006-01-20 08:06:19 +08:00
|
|
|
{ USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */
|
|
|
|
|
{ USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */
|
2009-06-11 20:52:31 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x0F91) }, /* Vstabi */
|
2009-07-06 19:19:59 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x1101) }, /* Arkham Technology DS101 Bus Monitor */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */
|
2008-01-03 20:45:59 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */
|
2006-03-11 19:29:02 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */
|
2010-05-15 20:36:38 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8044) }, /* Cygnal Debug Adapter */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */
|
2007-04-20 21:37:17 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
|
2008-10-31 04:52:38 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */
|
2006-05-31 04:40:06 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
|
2010-05-15 20:36:38 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */
|
2006-01-20 08:06:19 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */
|
2012-06-01 16:28:55 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x80C4) }, /* Cygnal Integrated Products, Inc., Optris infrared thermometer */
|
2006-01-20 08:06:19 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */
|
2007-04-20 21:37:17 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x80DD) }, /* Tracient RFID */
|
2006-01-20 08:06:19 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */
|
2008-09-05 04:28:21 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8115) }, /* Arygon NFC/Mifare Reader */
|
2006-01-20 08:06:19 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x813D) }, /* Burnside Telecom Deskmobile */
|
2009-07-13 04:52:33 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x813F) }, /* Tams Master Easy Control */
|
2007-03-01 06:04:33 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */
|
2013-03-08 07:19:33 +08:00
|
|
|
{ USB_DEVICE(0x2405, 0x0003) }, /* West Mountain Radio RIGblaster Advantage */
|
2010-08-27 04:08:54 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */
|
2006-01-20 08:06:19 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */
|
2012-06-27 06:20:04 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x815F) }, /* Timewave HamLinkUSB */
|
2010-05-15 20:36:38 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */
|
2009-02-27 03:58:39 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */
|
2008-05-12 00:23:13 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */
|
2012-01-06 03:34:40 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81A9) }, /* Multiplex RC Interface */
|
2008-04-12 23:15:54 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
|
2010-05-15 20:36:38 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
|
2006-10-28 18:42:04 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
|
2016-01-08 19:34:41 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81D7) }, /* IAI Corp. RCB-CV-USB USB to RS485 Adaptor */
|
2006-10-28 18:42:04 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
|
2007-11-29 00:02:09 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
|
2010-02-08 18:10:44 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */
|
2009-06-11 20:52:31 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */
|
2006-10-28 18:42:04 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */
|
2009-01-04 19:47:11 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x822B) }, /* Modem EDGE(GSM) Comander 2 */
|
2011-03-31 09:57:33 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */
|
2014-04-14 05:57:16 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */
|
2011-05-10 17:17:33 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */
|
2016-04-19 15:38:27 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x82F4) }, /* Starizona MicroTouch */
|
2009-06-11 20:52:31 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
|
2008-09-05 04:28:21 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
|
2009-07-13 04:52:33 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */
|
2008-11-10 04:17:54 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */
|
2011-01-03 05:51:46 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x83D8) }, /* DekTec DTA Plus VHF/UHF Booster/Attenuator */
|
2009-07-13 04:52:33 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */
|
2011-01-03 05:51:46 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */
|
2009-03-17 08:06:19 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
|
2016-09-24 02:28:37 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8470) }, /* Juniper Networks BX Series System Console */
|
2010-08-24 03:50:57 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */
|
2016-04-19 15:38:27 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x84B6) }, /* Starizona Hyperion */
|
2017-12-29 17:54:25 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x85A7) }, /* LifeScan OneTouch Verio IQ */
|
2011-03-20 21:51:13 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */
|
2012-11-22 16:41:23 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */
|
2011-03-20 21:51:13 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8664) }, /* AC-Services CAN-IF */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0x8665) }, /* AC-Services OBD-IF */
|
2015-01-06 23:00:52 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8856) }, /* CEL EM357 ZigBee USB Stick - LR */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0x8857) }, /* CEL EM357 ZigBee USB Stick */
|
2013-07-09 02:28:55 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */
|
2014-09-20 21:01:16 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8946) }, /* Ketra N1 Wireless Interface */
|
2016-11-16 18:13:49 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8962) }, /* Brim Brothers charging dock */
|
2015-01-06 23:00:52 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8977) }, /* CEL MeshWorks DevKit Device */
|
2015-04-14 20:52:34 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */
|
2015-06-05 04:18:19 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8A2A) }, /* HubZ dual ZigBee and Z-Wave dongle */
|
2017-06-29 00:23:25 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8A5E) }, /* CEL EM3588 ZigBee USB Stick Long Range */
|
2017-06-30 20:44:03 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */
|
2006-01-20 08:06:19 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
|
2006-10-13 05:09:56 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
|
2012-02-25 03:42:39 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
|
2010-05-15 20:36:38 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
|
2008-01-03 20:45:59 +08:00
|
|
|
{ USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */
|
|
|
|
|
{ USB_DEVICE(0x10C4, 0xF004) }, /* Elan Digital Systems USBcount50 */
|
2007-02-16 19:47:49 +08:00
|
|
|
{ USB_DEVICE(0x10C5, 0xEA61) }, /* Silicon Labs MobiData GPRS USB Modem */
|
2009-06-11 20:52:31 +08:00
|
|
|
{ USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */
|
2016-04-18 20:13:23 +08:00
|
|
|
{ USB_DEVICE(0x12B8, 0xEC60) }, /* Link G4 ECU */
|
|
|
|
|
{ USB_DEVICE(0x12B8, 0xEC62) }, /* Link G4+ ECU */
|
2006-12-02 23:54:27 +08:00
|
|
|
{ USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */
|
2009-06-11 20:52:31 +08:00
|
|
|
{ USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */
|
2018-03-06 16:32:43 +08:00
|
|
|
{ USB_DEVICE(0x155A, 0x1006) }, /* ELDAT Easywave RX09 */
|
2012-06-27 06:20:04 +08:00
|
|
|
{ USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal Automation Controller */
|
|
|
|
|
{ USB_DEVICE(0x166A, 0x0301) }, /* Clipsal 5800PC C-Bus Wireless PC Interface */
|
2008-01-03 20:45:59 +08:00
|
|
|
{ USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */
|
2012-06-27 06:20:04 +08:00
|
|
|
{ USB_DEVICE(0x166A, 0x0304) }, /* Clipsal 5000CT2 C-Bus Black and White Touchscreen */
|
|
|
|
|
{ USB_DEVICE(0x166A, 0x0305) }, /* Clipsal C-5000CT2 C-Bus Spectrum Colour Touchscreen */
|
|
|
|
|
{ USB_DEVICE(0x166A, 0x0401) }, /* Clipsal L51xx C-Bus Architectural Dimmer */
|
|
|
|
|
{ USB_DEVICE(0x166A, 0x0101) }, /* Clipsal 5560884 C-Bus Multi-room Audio Matrix Switcher */
|
2015-02-27 09:08:29 +08:00
|
|
|
{ USB_DEVICE(0x16C0, 0x09B0) }, /* Lunatico Seletek */
|
|
|
|
|
{ USB_DEVICE(0x16C0, 0x09B1) }, /* Lunatico Seletek */
|
2005-11-18 01:47:24 +08:00
|
|
|
{ USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
|
2010-07-28 05:05:14 +08:00
|
|
|
{ USB_DEVICE(0x16DC, 0x0010) }, /* W-IE-NE-R Plein & Baus GmbH PL512 Power Supply */
|
|
|
|
|
{ USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */
|
|
|
|
|
{ USB_DEVICE(0x16DC, 0x0012) }, /* W-IE-NE-R Plein & Baus GmbH MPOD Multi Channel Power Supply */
|
|
|
|
|
{ USB_DEVICE(0x16DC, 0x0015) }, /* W-IE-NE-R Plein & Baus GmbH CML Control, Monitoring and Data Logger */
|
2012-02-22 06:41:37 +08:00
|
|
|
{ USB_DEVICE(0x17A8, 0x0001) }, /* Kamstrup Optical Eye/3-wire */
|
|
|
|
|
{ USB_DEVICE(0x17A8, 0x0005) }, /* Kamstrup M-Bus Master MultiPort 250D */
|
2010-08-24 03:50:57 +08:00
|
|
|
{ USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
|
|
|
|
|
{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
|
|
|
|
|
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
|
2015-12-29 01:37:38 +08:00
|
|
|
{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
|
2018-01-04 02:53:02 +08:00
|
|
|
{ USB_DEVICE(0x18EF, 0xE030) }, /* ELV ALC 8xxx Battery Charger */
|
2017-09-19 03:11:57 +08:00
|
|
|
{ USB_DEVICE(0x18EF, 0xE032) }, /* ELV TFD500 Data Logger */
|
2016-02-02 03:57:25 +08:00
|
|
|
{ USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
|
|
|
|
|
{ USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
|
2016-03-30 00:47:29 +08:00
|
|
|
{ USB_DEVICE(0x1901, 0x0194) }, /* GE Healthcare Remote Alarm Box */
|
2017-02-04 04:00:24 +08:00
|
|
|
{ USB_DEVICE(0x1901, 0x0195) }, /* GE B850/B650/B450 CP2104 DP UART interface */
|
|
|
|
|
{ USB_DEVICE(0x1901, 0x0196) }, /* GE B850 CP2105 DP UART interface */
|
2016-02-28 21:40:24 +08:00
|
|
|
{ USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */
|
2013-07-20 05:46:12 +08:00
|
|
|
{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
|
2014-06-27 20:50:11 +08:00
|
|
|
{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
|
2014-10-04 00:01:20 +08:00
|
|
|
{ USB_DEVICE(0x1BA4, 0x0002) }, /* Silicon Labs 358x factory default */
|
2010-10-07 05:46:25 +08:00
|
|
|
{ USB_DEVICE(0x1BE3, 0x07A6) }, /* WAGO 750-923 USB Service Cable */
|
2014-09-22 15:50:43 +08:00
|
|
|
{ USB_DEVICE(0x1D6F, 0x0010) }, /* Seluxit ApS RF Dongle */
|
2012-06-27 06:20:04 +08:00
|
|
|
{ USB_DEVICE(0x1E29, 0x0102) }, /* Festo CPX-USB */
|
|
|
|
|
{ USB_DEVICE(0x1E29, 0x0501) }, /* Festo CMSP */
|
2013-03-09 17:57:32 +08:00
|
|
|
{ USB_DEVICE(0x1FB9, 0x0100) }, /* Lake Shore Model 121 Current Source */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0200) }, /* Lake Shore Model 218A Temperature Monitor */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0201) }, /* Lake Shore Model 219 Temperature Monitor */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0202) }, /* Lake Shore Model 233 Temperature Transmitter */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0203) }, /* Lake Shore Model 235 Temperature Transmitter */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0300) }, /* Lake Shore Model 335 Temperature Controller */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0301) }, /* Lake Shore Model 336 Temperature Controller */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0302) }, /* Lake Shore Model 350 Temperature Controller */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0303) }, /* Lake Shore Model 371 AC Bridge */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0400) }, /* Lake Shore Model 411 Handheld Gaussmeter */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0401) }, /* Lake Shore Model 425 Gaussmeter */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0402) }, /* Lake Shore Model 455A Gaussmeter */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0403) }, /* Lake Shore Model 475A Gaussmeter */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0404) }, /* Lake Shore Model 465 Three Axis Gaussmeter */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0600) }, /* Lake Shore Model 625A Superconducting MPS */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0601) }, /* Lake Shore Model 642A Magnet Power Supply */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0602) }, /* Lake Shore Model 648 Magnet Power Supply */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0700) }, /* Lake Shore Model 737 VSM Controller */
|
|
|
|
|
{ USB_DEVICE(0x1FB9, 0x0701) }, /* Lake Shore Model 776 Hall Matrix */
|
2015-06-26 08:40:05 +08:00
|
|
|
{ USB_DEVICE(0x2626, 0xEA60) }, /* Aruba Networks 7xxx USB Serial Console */
|
2012-01-06 23:20:51 +08:00
|
|
|
{ USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */
|
2012-06-27 06:20:04 +08:00
|
|
|
{ USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */
|
|
|
|
|
{ USB_DEVICE(0x3195, 0xF281) }, /* Link Instruments MSO-28 */
|
2010-08-24 03:50:57 +08:00
|
|
|
{ USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */
|
2005-05-27 07:09:56 +08:00
|
|
|
{ } /* Terminating Entry */
|
2005-04-17 06:20:36 +08:00
|
|
|
};
|
|
|
|
|
|
2008-07-22 18:10:17 +08:00
|
|
|
MODULE_DEVICE_TABLE(usb, id_table);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-10-20 22:13:54 +08:00
|
|
|
struct cp210x_serial_private {
|
|
|
|
|
#ifdef CONFIG_GPIOLIB
|
|
|
|
|
struct gpio_chip gc;
|
|
|
|
|
u8 config;
|
|
|
|
|
u8 gpio_mode;
|
2016-10-24 17:58:12 +08:00
|
|
|
bool gpio_registered;
|
2016-10-20 22:13:54 +08:00
|
|
|
#endif
|
|
|
|
|
u8 partnum;
|
|
|
|
|
};
|
|
|
|
|
|
2015-10-29 05:02:34 +08:00
|
|
|
struct cp210x_port_private {
|
2012-02-25 03:42:39 +08:00
|
|
|
__u8 bInterfaceNumber;
|
2015-10-29 05:02:54 +08:00
|
|
|
bool has_swapped_line_ctl;
|
2012-02-25 03:42:39 +08:00
|
|
|
};
|
|
|
|
|
|
2009-06-11 20:54:40 +08:00
|
|
|
static struct usb_serial_driver cp210x_device = {
|
2005-06-21 12:15:16 +08:00
|
|
|
.driver = {
|
|
|
|
|
.owner = THIS_MODULE,
|
2012-10-29 17:56:19 +08:00
|
|
|
.name = "cp210x",
|
2005-06-21 12:15:16 +08:00
|
|
|
},
|
2005-04-17 06:20:36 +08:00
|
|
|
.id_table = id_table,
|
|
|
|
|
.num_ports = 1,
|
2010-03-18 06:00:39 +08:00
|
|
|
.bulk_in_size = 256,
|
2010-03-18 06:00:38 +08:00
|
|
|
.bulk_out_size = 256,
|
2009-06-11 20:54:40 +08:00
|
|
|
.open = cp210x_open,
|
|
|
|
|
.close = cp210x_close,
|
|
|
|
|
.break_ctl = cp210x_break_ctl,
|
|
|
|
|
.set_termios = cp210x_set_termios,
|
2015-11-25 06:28:41 +08:00
|
|
|
.tx_empty = cp210x_tx_empty,
|
2012-10-29 17:56:19 +08:00
|
|
|
.tiocmget = cp210x_tiocmget,
|
2009-06-11 20:54:40 +08:00
|
|
|
.tiocmset = cp210x_tiocmset,
|
2016-10-20 22:13:54 +08:00
|
|
|
.attach = cp210x_attach,
|
|
|
|
|
.disconnect = cp210x_disconnect,
|
|
|
|
|
.release = cp210x_release,
|
2015-10-29 05:02:34 +08:00
|
|
|
.port_probe = cp210x_port_probe,
|
|
|
|
|
.port_remove = cp210x_port_remove,
|
2011-01-14 21:30:21 +08:00
|
|
|
.dtr_rts = cp210x_dtr_rts
|
2005-04-17 06:20:36 +08:00
|
|
|
};
|
|
|
|
|
|
2012-02-24 03:56:17 +08:00
|
|
|
static struct usb_serial_driver * const serial_drivers[] = {
|
|
|
|
|
&cp210x_device, NULL
|
|
|
|
|
};
|
|
|
|
|
|
2005-05-27 07:09:56 +08:00
|
|
|
/* Config request types */
|
2012-05-01 12:06:48 +08:00
|
|
|
#define REQTYPE_HOST_TO_INTERFACE 0x41
|
|
|
|
|
#define REQTYPE_INTERFACE_TO_HOST 0xc1
|
|
|
|
|
#define REQTYPE_HOST_TO_DEVICE 0x40
|
|
|
|
|
#define REQTYPE_DEVICE_TO_HOST 0xc0
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-06-11 20:53:30 +08:00
|
|
|
/* Config request codes */
|
|
|
|
|
#define CP210X_IFC_ENABLE 0x00
|
|
|
|
|
#define CP210X_SET_BAUDDIV 0x01
|
|
|
|
|
#define CP210X_GET_BAUDDIV 0x02
|
|
|
|
|
#define CP210X_SET_LINE_CTL 0x03
|
|
|
|
|
#define CP210X_GET_LINE_CTL 0x04
|
|
|
|
|
#define CP210X_SET_BREAK 0x05
|
|
|
|
|
#define CP210X_IMM_CHAR 0x06
|
|
|
|
|
#define CP210X_SET_MHS 0x07
|
|
|
|
|
#define CP210X_GET_MDMSTS 0x08
|
|
|
|
|
#define CP210X_SET_XON 0x09
|
|
|
|
|
#define CP210X_SET_XOFF 0x0A
|
|
|
|
|
#define CP210X_SET_EVENTMASK 0x0B
|
|
|
|
|
#define CP210X_GET_EVENTMASK 0x0C
|
|
|
|
|
#define CP210X_SET_CHAR 0x0D
|
|
|
|
|
#define CP210X_GET_CHARS 0x0E
|
|
|
|
|
#define CP210X_GET_PROPS 0x0F
|
|
|
|
|
#define CP210X_GET_COMM_STATUS 0x10
|
|
|
|
|
#define CP210X_RESET 0x11
|
|
|
|
|
#define CP210X_PURGE 0x12
|
|
|
|
|
#define CP210X_SET_FLOW 0x13
|
|
|
|
|
#define CP210X_GET_FLOW 0x14
|
|
|
|
|
#define CP210X_EMBED_EVENTS 0x15
|
|
|
|
|
#define CP210X_GET_EVENTSTATE 0x16
|
|
|
|
|
#define CP210X_SET_CHARS 0x19
|
2012-01-17 08:14:09 +08:00
|
|
|
#define CP210X_GET_BAUDRATE 0x1D
|
|
|
|
|
#define CP210X_SET_BAUDRATE 0x1E
|
2016-10-20 22:13:54 +08:00
|
|
|
#define CP210X_VENDOR_SPECIFIC 0xFF
|
2009-06-11 20:53:30 +08:00
|
|
|
|
|
|
|
|
/* CP210X_IFC_ENABLE */
|
2005-04-17 06:20:36 +08:00
|
|
|
#define UART_ENABLE 0x0001
|
|
|
|
|
#define UART_DISABLE 0x0000
|
|
|
|
|
|
2009-06-11 20:53:30 +08:00
|
|
|
/* CP210X_(SET|GET)_BAUDDIV */
|
2005-04-17 06:20:36 +08:00
|
|
|
#define BAUD_RATE_GEN_FREQ 0x384000
|
|
|
|
|
|
2009-06-11 20:53:30 +08:00
|
|
|
/* CP210X_(SET|GET)_LINE_CTL */
|
2005-04-17 06:20:36 +08:00
|
|
|
#define BITS_DATA_MASK 0X0f00
|
2005-05-27 07:09:56 +08:00
|
|
|
#define BITS_DATA_5 0X0500
|
2005-04-17 06:20:36 +08:00
|
|
|
#define BITS_DATA_6 0X0600
|
|
|
|
|
#define BITS_DATA_7 0X0700
|
|
|
|
|
#define BITS_DATA_8 0X0800
|
|
|
|
|
#define BITS_DATA_9 0X0900
|
|
|
|
|
|
|
|
|
|
#define BITS_PARITY_MASK 0x00f0
|
|
|
|
|
#define BITS_PARITY_NONE 0x0000
|
|
|
|
|
#define BITS_PARITY_ODD 0x0010
|
|
|
|
|
#define BITS_PARITY_EVEN 0x0020
|
|
|
|
|
#define BITS_PARITY_MARK 0x0030
|
|
|
|
|
#define BITS_PARITY_SPACE 0x0040
|
|
|
|
|
|
|
|
|
|
#define BITS_STOP_MASK 0x000f
|
|
|
|
|
#define BITS_STOP_1 0x0000
|
|
|
|
|
#define BITS_STOP_1_5 0x0001
|
|
|
|
|
#define BITS_STOP_2 0x0002
|
2005-05-27 07:09:56 +08:00
|
|
|
|
2009-06-11 20:53:30 +08:00
|
|
|
/* CP210X_SET_BREAK */
|
2010-08-19 05:13:39 +08:00
|
|
|
#define BREAK_ON 0x0001
|
|
|
|
|
#define BREAK_OFF 0x0000
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-06-11 20:53:30 +08:00
|
|
|
/* CP210X_(SET_MHS|GET_MDMSTS) */
|
2005-05-27 07:09:56 +08:00
|
|
|
#define CONTROL_DTR 0x0001
|
|
|
|
|
#define CONTROL_RTS 0x0002
|
|
|
|
|
#define CONTROL_CTS 0x0010
|
|
|
|
|
#define CONTROL_DSR 0x0020
|
|
|
|
|
#define CONTROL_RING 0x0040
|
|
|
|
|
#define CONTROL_DCD 0x0080
|
|
|
|
|
#define CONTROL_WRITE_DTR 0x0100
|
|
|
|
|
#define CONTROL_WRITE_RTS 0x0200
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-10-20 22:13:54 +08:00
|
|
|
/* CP210X_VENDOR_SPECIFIC values */
|
|
|
|
|
#define CP210X_READ_LATCH 0x00C2
|
|
|
|
|
#define CP210X_GET_PARTNUM 0x370B
|
|
|
|
|
#define CP210X_GET_PORTCONFIG 0x370C
|
|
|
|
|
#define CP210X_GET_DEVICEMODE 0x3711
|
|
|
|
|
#define CP210X_WRITE_LATCH 0x37E1
|
|
|
|
|
|
|
|
|
|
/* Part number definitions */
|
|
|
|
|
#define CP210X_PARTNUM_CP2101 0x01
|
|
|
|
|
#define CP210X_PARTNUM_CP2102 0x02
|
|
|
|
|
#define CP210X_PARTNUM_CP2103 0x03
|
|
|
|
|
#define CP210X_PARTNUM_CP2104 0x04
|
|
|
|
|
#define CP210X_PARTNUM_CP2105 0x05
|
|
|
|
|
#define CP210X_PARTNUM_CP2108 0x08
|
2017-09-12 15:50:59 +08:00
|
|
|
#define CP210X_PARTNUM_UNKNOWN 0xFF
|
2016-10-20 22:13:54 +08:00
|
|
|
|
2015-11-25 06:28:41 +08:00
|
|
|
/* CP210X_GET_COMM_STATUS returns these 0x13 bytes */
|
|
|
|
|
struct cp210x_comm_status {
|
|
|
|
|
__le32 ulErrors;
|
|
|
|
|
__le32 ulHoldReasons;
|
|
|
|
|
__le32 ulAmountInInQueue;
|
|
|
|
|
__le32 ulAmountInOutQueue;
|
|
|
|
|
u8 bEofReceived;
|
|
|
|
|
u8 bWaitForImmediate;
|
|
|
|
|
u8 bReserved;
|
|
|
|
|
} __packed;
|
|
|
|
|
|
2015-10-29 05:02:03 +08:00
|
|
|
/*
|
|
|
|
|
* CP210X_PURGE - 16 bits passed in wValue of USB request.
|
|
|
|
|
* SiLabs app note AN571 gives a strange description of the 4 bits:
|
|
|
|
|
* bit 0 or bit 2 clears the transmit queue and 1 or 3 receive.
|
|
|
|
|
* writing 1 to all, however, purges cp2108 well enough to avoid the hang.
|
|
|
|
|
*/
|
|
|
|
|
#define PURGE_ALL 0x000f
|
|
|
|
|
|
2016-05-05 05:57:02 +08:00
|
|
|
/* CP210X_GET_FLOW/CP210X_SET_FLOW read/write these 0x10 bytes */
|
|
|
|
|
struct cp210x_flow_ctl {
|
|
|
|
|
__le32 ulControlHandshake;
|
|
|
|
|
__le32 ulFlowReplace;
|
|
|
|
|
__le32 ulXonLimit;
|
|
|
|
|
__le32 ulXoffLimit;
|
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
|
|
/* cp210x_flow_ctl::ulControlHandshake */
|
|
|
|
|
#define CP210X_SERIAL_DTR_MASK GENMASK(1, 0)
|
|
|
|
|
#define CP210X_SERIAL_DTR_SHIFT(_mode) (_mode)
|
|
|
|
|
#define CP210X_SERIAL_CTS_HANDSHAKE BIT(3)
|
|
|
|
|
#define CP210X_SERIAL_DSR_HANDSHAKE BIT(4)
|
|
|
|
|
#define CP210X_SERIAL_DCD_HANDSHAKE BIT(5)
|
|
|
|
|
#define CP210X_SERIAL_DSR_SENSITIVITY BIT(6)
|
|
|
|
|
|
|
|
|
|
/* values for cp210x_flow_ctl::ulControlHandshake::CP210X_SERIAL_DTR_MASK */
|
|
|
|
|
#define CP210X_SERIAL_DTR_INACTIVE 0
|
|
|
|
|
#define CP210X_SERIAL_DTR_ACTIVE 1
|
|
|
|
|
#define CP210X_SERIAL_DTR_FLOW_CTL 2
|
|
|
|
|
|
|
|
|
|
/* cp210x_flow_ctl::ulFlowReplace */
|
|
|
|
|
#define CP210X_SERIAL_AUTO_TRANSMIT BIT(0)
|
|
|
|
|
#define CP210X_SERIAL_AUTO_RECEIVE BIT(1)
|
|
|
|
|
#define CP210X_SERIAL_ERROR_CHAR BIT(2)
|
|
|
|
|
#define CP210X_SERIAL_NULL_STRIPPING BIT(3)
|
|
|
|
|
#define CP210X_SERIAL_BREAK_CHAR BIT(4)
|
|
|
|
|
#define CP210X_SERIAL_RTS_MASK GENMASK(7, 6)
|
|
|
|
|
#define CP210X_SERIAL_RTS_SHIFT(_mode) (_mode << 6)
|
|
|
|
|
#define CP210X_SERIAL_XOFF_CONTINUE BIT(31)
|
|
|
|
|
|
|
|
|
|
/* values for cp210x_flow_ctl::ulFlowReplace::CP210X_SERIAL_RTS_MASK */
|
|
|
|
|
#define CP210X_SERIAL_RTS_INACTIVE 0
|
|
|
|
|
#define CP210X_SERIAL_RTS_ACTIVE 1
|
|
|
|
|
#define CP210X_SERIAL_RTS_FLOW_CTL 2
|
|
|
|
|
|
2016-10-20 22:13:54 +08:00
|
|
|
/* CP210X_VENDOR_SPECIFIC, CP210X_GET_DEVICEMODE call reads these 0x2 bytes. */
|
|
|
|
|
struct cp210x_pin_mode {
|
|
|
|
|
u8 eci;
|
|
|
|
|
u8 sci;
|
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
|
|
#define CP210X_PIN_MODE_MODEM 0
|
|
|
|
|
#define CP210X_PIN_MODE_GPIO BIT(0)
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* CP210X_VENDOR_SPECIFIC, CP210X_GET_PORTCONFIG call reads these 0xf bytes.
|
|
|
|
|
* Structure needs padding due to unused/unspecified bytes.
|
|
|
|
|
*/
|
|
|
|
|
struct cp210x_config {
|
|
|
|
|
__le16 gpio_mode;
|
|
|
|
|
u8 __pad0[2];
|
|
|
|
|
__le16 reset_state;
|
|
|
|
|
u8 __pad1[4];
|
|
|
|
|
__le16 suspend_state;
|
|
|
|
|
u8 sci_cfg;
|
|
|
|
|
u8 eci_cfg;
|
|
|
|
|
u8 device_cfg;
|
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
|
|
/* GPIO modes */
|
|
|
|
|
#define CP210X_SCI_GPIO_MODE_OFFSET 9
|
|
|
|
|
#define CP210X_SCI_GPIO_MODE_MASK GENMASK(11, 9)
|
|
|
|
|
|
|
|
|
|
#define CP210X_ECI_GPIO_MODE_OFFSET 2
|
|
|
|
|
#define CP210X_ECI_GPIO_MODE_MASK GENMASK(3, 2)
|
|
|
|
|
|
|
|
|
|
/* CP2105 port configuration values */
|
|
|
|
|
#define CP2105_GPIO0_TXLED_MODE BIT(0)
|
|
|
|
|
#define CP2105_GPIO1_RXLED_MODE BIT(1)
|
|
|
|
|
#define CP2105_GPIO1_RS485_MODE BIT(2)
|
|
|
|
|
|
|
|
|
|
/* CP210X_VENDOR_SPECIFIC, CP210X_WRITE_LATCH call writes these 0x2 bytes. */
|
|
|
|
|
struct cp210x_gpio_write {
|
|
|
|
|
u8 mask;
|
|
|
|
|
u8 state;
|
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Helper to get interface number when we only have struct usb_serial.
|
|
|
|
|
*/
|
|
|
|
|
static u8 cp210x_interface_num(struct usb_serial *serial)
|
|
|
|
|
{
|
|
|
|
|
struct usb_host_interface *cur_altsetting;
|
|
|
|
|
|
|
|
|
|
cur_altsetting = serial->interface->cur_altsetting;
|
|
|
|
|
|
|
|
|
|
return cur_altsetting->desc.bInterfaceNumber;
|
|
|
|
|
}
|
|
|
|
|
|
2005-05-27 07:09:56 +08:00
|
|
|
/*
|
2016-02-29 05:51:30 +08:00
|
|
|
* Reads a variable-sized block of CP210X_ registers, identified by req.
|
|
|
|
|
* Returns data into buf in native USB byte order.
|
2005-05-27 07:09:56 +08:00
|
|
|
*/
|
2016-02-29 05:51:30 +08:00
|
|
|
static int cp210x_read_reg_block(struct usb_serial_port *port, u8 req,
|
|
|
|
|
void *buf, int bufsize)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
|
struct usb_serial *serial = port->serial;
|
2015-10-29 05:02:34 +08:00
|
|
|
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
|
2016-02-29 05:51:30 +08:00
|
|
|
void *dmabuf;
|
|
|
|
|
int result;
|
2005-05-27 07:09:56 +08:00
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
dmabuf = kmalloc(bufsize, GFP_KERNEL);
|
|
|
|
|
if (!dmabuf) {
|
|
|
|
|
/*
|
|
|
|
|
* FIXME Some callers don't bother to check for error,
|
|
|
|
|
* at least give them consistent junk until they are fixed
|
|
|
|
|
*/
|
|
|
|
|
memset(buf, 0, bufsize);
|
2005-05-27 07:09:56 +08:00
|
|
|
return -ENOMEM;
|
2016-02-29 05:51:30 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-07-22 18:10:17 +08:00
|
|
|
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
|
2016-02-29 05:51:30 +08:00
|
|
|
req, REQTYPE_INTERFACE_TO_HOST, 0,
|
|
|
|
|
port_priv->bInterfaceNumber, dmabuf, bufsize,
|
|
|
|
|
USB_CTRL_SET_TIMEOUT);
|
|
|
|
|
if (result == bufsize) {
|
|
|
|
|
memcpy(buf, dmabuf, bufsize);
|
|
|
|
|
result = 0;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&port->dev, "failed get req 0x%x size %d status: %d\n",
|
|
|
|
|
req, bufsize, result);
|
|
|
|
|
if (result >= 0)
|
2016-10-19 21:46:39 +08:00
|
|
|
result = -EIO;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
/*
|
|
|
|
|
* FIXME Some callers don't bother to check for error,
|
|
|
|
|
* at least give them consistent junk until they are fixed
|
|
|
|
|
*/
|
|
|
|
|
memset(buf, 0, bufsize);
|
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
kfree(dmabuf);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
return result;
|
|
|
|
|
}
|
2011-11-10 21:58:29 +08:00
|
|
|
|
2016-02-29 05:51:41 +08:00
|
|
|
/*
|
|
|
|
|
* Reads any 32-bit CP210X_ register identified by req.
|
|
|
|
|
*/
|
|
|
|
|
static int cp210x_read_u32_reg(struct usb_serial_port *port, u8 req, u32 *val)
|
|
|
|
|
{
|
|
|
|
|
__le32 le32_val;
|
|
|
|
|
int err;
|
|
|
|
|
|
|
|
|
|
err = cp210x_read_reg_block(port, req, &le32_val, sizeof(le32_val));
|
|
|
|
|
if (err) {
|
|
|
|
|
/*
|
|
|
|
|
* FIXME Some callers don't bother to check for error,
|
|
|
|
|
* at least give them consistent junk until they are fixed
|
|
|
|
|
*/
|
|
|
|
|
*val = 0;
|
|
|
|
|
return err;
|
2005-05-27 07:09:56 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-02-29 05:51:41 +08:00
|
|
|
*val = le32_to_cpu(le32_val);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
/*
|
|
|
|
|
* Reads any 16-bit CP210X_ register identified by req.
|
|
|
|
|
*/
|
|
|
|
|
static int cp210x_read_u16_reg(struct usb_serial_port *port, u8 req, u16 *val)
|
|
|
|
|
{
|
|
|
|
|
__le16 le16_val;
|
|
|
|
|
int err;
|
|
|
|
|
|
|
|
|
|
err = cp210x_read_reg_block(port, req, &le16_val, sizeof(le16_val));
|
|
|
|
|
if (err)
|
|
|
|
|
return err;
|
|
|
|
|
|
|
|
|
|
*val = le16_to_cpu(le16_val);
|
2016-02-29 05:51:41 +08:00
|
|
|
|
2005-05-27 07:09:56 +08:00
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2005-05-27 07:09:56 +08:00
|
|
|
/*
|
2016-02-29 05:51:41 +08:00
|
|
|
* Reads any 8-bit CP210X_ register identified by req.
|
|
|
|
|
*/
|
|
|
|
|
static int cp210x_read_u8_reg(struct usb_serial_port *port, u8 req, u8 *val)
|
|
|
|
|
{
|
|
|
|
|
return cp210x_read_reg_block(port, req, val, sizeof(*val));
|
|
|
|
|
}
|
|
|
|
|
|
2016-10-20 22:13:54 +08:00
|
|
|
/*
|
|
|
|
|
* Reads a variable-sized vendor block of CP210X_ registers, identified by val.
|
|
|
|
|
* Returns data into buf in native USB byte order.
|
|
|
|
|
*/
|
|
|
|
|
static int cp210x_read_vendor_block(struct usb_serial *serial, u8 type, u16 val,
|
|
|
|
|
void *buf, int bufsize)
|
|
|
|
|
{
|
|
|
|
|
void *dmabuf;
|
|
|
|
|
int result;
|
|
|
|
|
|
|
|
|
|
dmabuf = kmalloc(bufsize, GFP_KERNEL);
|
|
|
|
|
if (!dmabuf)
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
|
|
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
|
|
|
|
|
CP210X_VENDOR_SPECIFIC, type, val,
|
|
|
|
|
cp210x_interface_num(serial), dmabuf, bufsize,
|
|
|
|
|
USB_CTRL_GET_TIMEOUT);
|
|
|
|
|
if (result == bufsize) {
|
|
|
|
|
memcpy(buf, dmabuf, bufsize);
|
|
|
|
|
result = 0;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&serial->interface->dev,
|
|
|
|
|
"failed to get vendor val 0x%04x size %d: %d\n", val,
|
|
|
|
|
bufsize, result);
|
|
|
|
|
if (result >= 0)
|
|
|
|
|
result = -EIO;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
kfree(dmabuf);
|
|
|
|
|
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
/*
|
|
|
|
|
* Writes any 16-bit CP210X_ register (req) whose value is passed
|
|
|
|
|
* entirely in the wValue field of the USB request.
|
2005-05-27 07:09:56 +08:00
|
|
|
*/
|
2016-02-29 05:51:30 +08:00
|
|
|
static int cp210x_write_u16_reg(struct usb_serial_port *port, u8 req, u16 val)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
|
struct usb_serial *serial = port->serial;
|
2015-10-29 05:02:34 +08:00
|
|
|
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
|
2016-02-29 05:51:30 +08:00
|
|
|
int result;
|
|
|
|
|
|
|
|
|
|
result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
|
|
|
|
|
req, REQTYPE_HOST_TO_INTERFACE, val,
|
|
|
|
|
port_priv->bInterfaceNumber, NULL, 0,
|
|
|
|
|
USB_CTRL_SET_TIMEOUT);
|
|
|
|
|
if (result < 0) {
|
|
|
|
|
dev_err(&port->dev, "failed set request 0x%x status: %d\n",
|
|
|
|
|
req, result);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return result;
|
2005-05-27 07:09:56 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-02-29 05:51:41 +08:00
|
|
|
/*
|
|
|
|
|
* Writes a variable-sized block of CP210X_ registers, identified by req.
|
|
|
|
|
* Data in buf must be in native USB byte order.
|
|
|
|
|
*/
|
|
|
|
|
static int cp210x_write_reg_block(struct usb_serial_port *port, u8 req,
|
|
|
|
|
void *buf, int bufsize)
|
|
|
|
|
{
|
|
|
|
|
struct usb_serial *serial = port->serial;
|
|
|
|
|
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
|
|
|
|
|
void *dmabuf;
|
|
|
|
|
int result;
|
2005-05-27 07:09:56 +08:00
|
|
|
|
2016-05-19 22:04:36 +08:00
|
|
|
dmabuf = kmemdup(buf, bufsize, GFP_KERNEL);
|
2016-02-29 05:51:41 +08:00
|
|
|
if (!dmabuf)
|
2005-05-27 07:09:56 +08:00
|
|
|
return -ENOMEM;
|
|
|
|
|
|
2016-02-29 05:51:41 +08:00
|
|
|
result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
|
|
|
|
|
req, REQTYPE_HOST_TO_INTERFACE, 0,
|
|
|
|
|
port_priv->bInterfaceNumber, dmabuf, bufsize,
|
|
|
|
|
USB_CTRL_SET_TIMEOUT);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-02-29 05:51:41 +08:00
|
|
|
kfree(dmabuf);
|
2005-05-27 07:09:56 +08:00
|
|
|
|
2016-02-29 05:51:41 +08:00
|
|
|
if (result == bufsize) {
|
|
|
|
|
result = 0;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&port->dev, "failed set req 0x%x size %d status: %d\n",
|
|
|
|
|
req, bufsize, result);
|
|
|
|
|
if (result >= 0)
|
2016-10-19 21:46:39 +08:00
|
|
|
result = -EIO;
|
2005-05-27 07:09:56 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-02-29 05:51:41 +08:00
|
|
|
return result;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2005-05-27 07:09:56 +08:00
|
|
|
/*
|
2016-02-29 05:51:41 +08:00
|
|
|
* Writes any 32-bit CP210X_ register identified by req.
|
2005-05-27 07:09:56 +08:00
|
|
|
*/
|
2016-02-29 05:51:41 +08:00
|
|
|
static int cp210x_write_u32_reg(struct usb_serial_port *port, u8 req, u32 val)
|
2005-05-27 07:09:56 +08:00
|
|
|
{
|
2016-02-29 05:51:41 +08:00
|
|
|
__le32 le32_val;
|
|
|
|
|
|
|
|
|
|
le32_val = cpu_to_le32(val);
|
|
|
|
|
|
|
|
|
|
return cp210x_write_reg_block(port, req, &le32_val, sizeof(le32_val));
|
2005-05-27 07:09:56 +08:00
|
|
|
}
|
|
|
|
|
|
2016-10-20 22:13:54 +08:00
|
|
|
#ifdef CONFIG_GPIOLIB
|
|
|
|
|
/*
|
|
|
|
|
* Writes a variable-sized vendor block of CP210X_ registers, identified by val.
|
|
|
|
|
* Data in buf must be in native USB byte order.
|
|
|
|
|
*/
|
|
|
|
|
static int cp210x_write_vendor_block(struct usb_serial *serial, u8 type,
|
|
|
|
|
u16 val, void *buf, int bufsize)
|
|
|
|
|
{
|
|
|
|
|
void *dmabuf;
|
|
|
|
|
int result;
|
|
|
|
|
|
|
|
|
|
dmabuf = kmemdup(buf, bufsize, GFP_KERNEL);
|
|
|
|
|
if (!dmabuf)
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
|
|
result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
|
|
|
|
|
CP210X_VENDOR_SPECIFIC, type, val,
|
|
|
|
|
cp210x_interface_num(serial), dmabuf, bufsize,
|
|
|
|
|
USB_CTRL_SET_TIMEOUT);
|
|
|
|
|
|
|
|
|
|
kfree(dmabuf);
|
|
|
|
|
|
|
|
|
|
if (result == bufsize) {
|
|
|
|
|
result = 0;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&serial->interface->dev,
|
|
|
|
|
"failed to set vendor val 0x%04x size %d: %d\n", val,
|
|
|
|
|
bufsize, result);
|
|
|
|
|
if (result >= 0)
|
|
|
|
|
result = -EIO;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
2015-10-29 05:02:54 +08:00
|
|
|
/*
|
|
|
|
|
* Detect CP2108 GET_LINE_CTL bug and activate workaround.
|
|
|
|
|
* Write a known good value 0x800, read it back.
|
|
|
|
|
* If it comes back swapped the bug is detected.
|
|
|
|
|
* Preserve the original register value.
|
|
|
|
|
*/
|
|
|
|
|
static int cp210x_detect_swapped_line_ctl(struct usb_serial_port *port)
|
|
|
|
|
{
|
|
|
|
|
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
|
2016-02-29 05:51:30 +08:00
|
|
|
u16 line_ctl_save;
|
|
|
|
|
u16 line_ctl_test;
|
2015-10-29 05:02:54 +08:00
|
|
|
int err;
|
|
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
err = cp210x_read_u16_reg(port, CP210X_GET_LINE_CTL, &line_ctl_save);
|
2015-10-29 05:02:54 +08:00
|
|
|
if (err)
|
|
|
|
|
return err;
|
|
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
err = cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, 0x800);
|
2015-10-29 05:02:54 +08:00
|
|
|
if (err)
|
|
|
|
|
return err;
|
|
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
err = cp210x_read_u16_reg(port, CP210X_GET_LINE_CTL, &line_ctl_test);
|
2015-10-29 05:02:54 +08:00
|
|
|
if (err)
|
|
|
|
|
return err;
|
|
|
|
|
|
|
|
|
|
if (line_ctl_test == 8) {
|
|
|
|
|
port_priv->has_swapped_line_ctl = true;
|
2016-02-29 05:51:30 +08:00
|
|
|
line_ctl_save = swab16(line_ctl_save);
|
2015-10-29 05:02:54 +08:00
|
|
|
}
|
|
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
return cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, line_ctl_save);
|
2015-10-29 05:02:54 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
2016-02-29 05:51:30 +08:00
|
|
|
* Must always be called instead of cp210x_read_u16_reg(CP210X_GET_LINE_CTL)
|
2015-10-29 05:02:54 +08:00
|
|
|
* to workaround cp2108 bug and get correct value.
|
|
|
|
|
*/
|
2016-02-29 05:51:30 +08:00
|
|
|
static int cp210x_get_line_ctl(struct usb_serial_port *port, u16 *ctl)
|
2015-10-29 05:02:54 +08:00
|
|
|
{
|
|
|
|
|
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
|
|
|
|
|
int err;
|
|
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
err = cp210x_read_u16_reg(port, CP210X_GET_LINE_CTL, ctl);
|
2015-10-29 05:02:54 +08:00
|
|
|
if (err)
|
|
|
|
|
return err;
|
|
|
|
|
|
|
|
|
|
/* Workaround swapped bytes in 16-bit value from CP210X_GET_LINE_CTL */
|
|
|
|
|
if (port_priv->has_swapped_line_ctl)
|
2016-02-29 05:51:30 +08:00
|
|
|
*ctl = swab16(*ctl);
|
2015-10-29 05:02:54 +08:00
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2009-02-27 06:19:22 +08:00
|
|
|
/*
|
2009-06-11 20:54:40 +08:00
|
|
|
* cp210x_quantise_baudrate
|
2009-02-27 06:19:22 +08:00
|
|
|
* Quantises the baud rate as per AN205 Table 1
|
|
|
|
|
*/
|
2012-10-29 17:56:19 +08:00
|
|
|
static unsigned int cp210x_quantise_baudrate(unsigned int baud)
|
|
|
|
|
{
|
2012-01-16 07:36:50 +08:00
|
|
|
if (baud <= 300)
|
|
|
|
|
baud = 300;
|
2009-02-27 06:19:22 +08:00
|
|
|
else if (baud <= 600) baud = 600;
|
|
|
|
|
else if (baud <= 1200) baud = 1200;
|
|
|
|
|
else if (baud <= 1800) baud = 1800;
|
|
|
|
|
else if (baud <= 2400) baud = 2400;
|
|
|
|
|
else if (baud <= 4000) baud = 4000;
|
|
|
|
|
else if (baud <= 4803) baud = 4800;
|
|
|
|
|
else if (baud <= 7207) baud = 7200;
|
|
|
|
|
else if (baud <= 9612) baud = 9600;
|
|
|
|
|
else if (baud <= 14428) baud = 14400;
|
|
|
|
|
else if (baud <= 16062) baud = 16000;
|
|
|
|
|
else if (baud <= 19250) baud = 19200;
|
|
|
|
|
else if (baud <= 28912) baud = 28800;
|
|
|
|
|
else if (baud <= 38601) baud = 38400;
|
|
|
|
|
else if (baud <= 51558) baud = 51200;
|
|
|
|
|
else if (baud <= 56280) baud = 56000;
|
|
|
|
|
else if (baud <= 58053) baud = 57600;
|
|
|
|
|
else if (baud <= 64111) baud = 64000;
|
|
|
|
|
else if (baud <= 77608) baud = 76800;
|
|
|
|
|
else if (baud <= 117028) baud = 115200;
|
|
|
|
|
else if (baud <= 129347) baud = 128000;
|
|
|
|
|
else if (baud <= 156868) baud = 153600;
|
|
|
|
|
else if (baud <= 237832) baud = 230400;
|
|
|
|
|
else if (baud <= 254234) baud = 250000;
|
|
|
|
|
else if (baud <= 273066) baud = 256000;
|
|
|
|
|
else if (baud <= 491520) baud = 460800;
|
|
|
|
|
else if (baud <= 567138) baud = 500000;
|
|
|
|
|
else if (baud <= 670254) baud = 576000;
|
2012-01-16 07:36:53 +08:00
|
|
|
else if (baud < 1000000)
|
|
|
|
|
baud = 921600;
|
|
|
|
|
else if (baud > 2000000)
|
|
|
|
|
baud = 2000000;
|
2009-02-27 06:19:22 +08:00
|
|
|
return baud;
|
|
|
|
|
}
|
|
|
|
|
|
2009-09-20 04:13:26 +08:00
|
|
|
static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
|
int result;
|
|
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
result = cp210x_write_u16_reg(port, CP210X_IFC_ENABLE, UART_ENABLE);
|
2011-11-10 21:58:29 +08:00
|
|
|
if (result) {
|
|
|
|
|
dev_err(&port->dev, "%s - Unable to enable UART\n", __func__);
|
|
|
|
|
return result;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2005-05-27 07:09:56 +08:00
|
|
|
/* Configure the termios structure */
|
2009-06-11 20:54:40 +08:00
|
|
|
cp210x_get_termios(tty, port);
|
2012-01-16 07:36:48 +08:00
|
|
|
|
2012-01-16 07:36:52 +08:00
|
|
|
/* The baud rate must be initialised on cp2104 */
|
|
|
|
|
if (tty)
|
|
|
|
|
cp210x_change_speed(tty, port, NULL);
|
|
|
|
|
|
2012-01-16 07:36:48 +08:00
|
|
|
return usb_serial_generic_open(tty, port);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2009-06-11 20:54:40 +08:00
|
|
|
static void cp210x_close(struct usb_serial_port *port)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2010-03-18 06:00:45 +08:00
|
|
|
usb_serial_generic_close(port);
|
2015-10-29 05:02:03 +08:00
|
|
|
|
|
|
|
|
/* Clear both queues; cp2108 needs this to avoid an occasional hang */
|
2016-02-29 05:51:30 +08:00
|
|
|
cp210x_write_u16_reg(port, CP210X_PURGE, PURGE_ALL);
|
2015-10-29 05:02:03 +08:00
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
cp210x_write_u16_reg(port, CP210X_IFC_ENABLE, UART_DISABLE);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2015-11-25 06:28:41 +08:00
|
|
|
/*
|
|
|
|
|
* Read how many bytes are waiting in the TX queue.
|
|
|
|
|
*/
|
|
|
|
|
static int cp210x_get_tx_queue_byte_count(struct usb_serial_port *port,
|
|
|
|
|
u32 *count)
|
|
|
|
|
{
|
|
|
|
|
struct usb_serial *serial = port->serial;
|
|
|
|
|
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
|
|
|
|
|
struct cp210x_comm_status *sts;
|
|
|
|
|
int result;
|
|
|
|
|
|
|
|
|
|
sts = kmalloc(sizeof(*sts), GFP_KERNEL);
|
|
|
|
|
if (!sts)
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
|
|
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
|
|
|
|
|
CP210X_GET_COMM_STATUS, REQTYPE_INTERFACE_TO_HOST,
|
|
|
|
|
0, port_priv->bInterfaceNumber, sts, sizeof(*sts),
|
|
|
|
|
USB_CTRL_GET_TIMEOUT);
|
|
|
|
|
if (result == sizeof(*sts)) {
|
|
|
|
|
*count = le32_to_cpu(sts->ulAmountInOutQueue);
|
|
|
|
|
result = 0;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&port->dev, "failed to get comm status: %d\n", result);
|
|
|
|
|
if (result >= 0)
|
2016-10-19 21:46:39 +08:00
|
|
|
result = -EIO;
|
2015-11-25 06:28:41 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
kfree(sts);
|
|
|
|
|
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static bool cp210x_tx_empty(struct usb_serial_port *port)
|
|
|
|
|
{
|
|
|
|
|
int err;
|
|
|
|
|
u32 count;
|
|
|
|
|
|
|
|
|
|
err = cp210x_get_tx_queue_byte_count(port, &count);
|
|
|
|
|
if (err)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
return !count;
|
|
|
|
|
}
|
|
|
|
|
|
2005-05-27 07:09:56 +08:00
|
|
|
/*
|
2009-06-11 20:54:40 +08:00
|
|
|
* cp210x_get_termios
|
2005-05-27 07:09:56 +08:00
|
|
|
* Reads the baud rate, data bits, parity, stop bits and flow control mode
|
|
|
|
|
* from the device, corrects any unsupported values, and configures the
|
|
|
|
|
* termios structure to reflect the state of the device
|
|
|
|
|
*/
|
2009-06-11 20:54:40 +08:00
|
|
|
static void cp210x_get_termios(struct tty_struct *tty,
|
2009-03-13 05:37:42 +08:00
|
|
|
struct usb_serial_port *port)
|
|
|
|
|
{
|
|
|
|
|
unsigned int baud;
|
|
|
|
|
|
|
|
|
|
if (tty) {
|
2009-06-11 20:54:40 +08:00
|
|
|
cp210x_get_termios_port(tty->driver_data,
|
2012-07-14 22:31:47 +08:00
|
|
|
&tty->termios.c_cflag, &baud);
|
2009-03-13 05:37:42 +08:00
|
|
|
tty_encode_baud_rate(tty, baud, baud);
|
2012-10-29 17:56:19 +08:00
|
|
|
} else {
|
2016-11-21 20:19:31 +08:00
|
|
|
tcflag_t cflag;
|
2009-03-13 05:37:42 +08:00
|
|
|
cflag = 0;
|
2009-06-11 20:54:40 +08:00
|
|
|
cp210x_get_termios_port(port, &cflag, &baud);
|
2009-03-13 05:37:42 +08:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
2009-06-11 20:54:40 +08:00
|
|
|
* cp210x_get_termios_port
|
|
|
|
|
* This is the heart of cp210x_get_termios which always uses a &usb_serial_port.
|
2009-03-13 05:37:42 +08:00
|
|
|
*/
|
2009-06-11 20:54:40 +08:00
|
|
|
static void cp210x_get_termios_port(struct usb_serial_port *port,
|
2016-11-21 20:19:31 +08:00
|
|
|
tcflag_t *cflagp, unsigned int *baudp)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2012-09-14 08:18:13 +08:00
|
|
|
struct device *dev = &port->dev;
|
2016-11-21 20:19:31 +08:00
|
|
|
tcflag_t cflag;
|
2016-05-05 05:57:02 +08:00
|
|
|
struct cp210x_flow_ctl flow_ctl;
|
2016-02-29 05:51:41 +08:00
|
|
|
u32 baud;
|
2016-02-29 05:51:30 +08:00
|
|
|
u16 bits;
|
2016-05-05 05:57:02 +08:00
|
|
|
u32 ctl_hs;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2016-02-29 05:51:41 +08:00
|
|
|
cp210x_read_u32_reg(port, CP210X_GET_BAUDRATE, &baud);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - baud rate = %d\n", __func__, baud);
|
2009-03-13 05:37:42 +08:00
|
|
|
*baudp = baud;
|
2007-10-18 16:24:24 +08:00
|
|
|
|
2009-03-13 05:37:42 +08:00
|
|
|
cflag = *cflagp;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2015-10-29 05:02:54 +08:00
|
|
|
cp210x_get_line_ctl(port, &bits);
|
2005-04-17 06:20:36 +08:00
|
|
|
cflag &= ~CSIZE;
|
2008-07-22 18:10:17 +08:00
|
|
|
switch (bits & BITS_DATA_MASK) {
|
|
|
|
|
case BITS_DATA_5:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 5\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag |= CS5;
|
|
|
|
|
break;
|
|
|
|
|
case BITS_DATA_6:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 6\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag |= CS6;
|
|
|
|
|
break;
|
|
|
|
|
case BITS_DATA_7:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 7\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag |= CS7;
|
|
|
|
|
break;
|
|
|
|
|
case BITS_DATA_8:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 8\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag |= CS8;
|
|
|
|
|
break;
|
|
|
|
|
case BITS_DATA_9:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 9 (not supported, using 8 data bits)\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag |= CS8;
|
|
|
|
|
bits &= ~BITS_DATA_MASK;
|
|
|
|
|
bits |= BITS_DATA_8;
|
2016-02-29 05:51:30 +08:00
|
|
|
cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
|
|
|
|
default:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - Unknown number of data bits, using 8\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag |= CS8;
|
|
|
|
|
bits &= ~BITS_DATA_MASK;
|
|
|
|
|
bits |= BITS_DATA_8;
|
2016-02-29 05:51:30 +08:00
|
|
|
cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2008-07-22 18:10:17 +08:00
|
|
|
switch (bits & BITS_PARITY_MASK) {
|
|
|
|
|
case BITS_PARITY_NONE:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - parity = NONE\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag &= ~PARENB;
|
|
|
|
|
break;
|
|
|
|
|
case BITS_PARITY_ODD:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - parity = ODD\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag |= (PARENB|PARODD);
|
|
|
|
|
break;
|
|
|
|
|
case BITS_PARITY_EVEN:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - parity = EVEN\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag &= ~PARODD;
|
|
|
|
|
cflag |= PARENB;
|
|
|
|
|
break;
|
|
|
|
|
case BITS_PARITY_MARK:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - parity = MARK\n", __func__);
|
2011-11-10 02:37:08 +08:00
|
|
|
cflag |= (PARENB|PARODD|CMSPAR);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
|
|
|
|
case BITS_PARITY_SPACE:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - parity = SPACE\n", __func__);
|
2011-11-10 02:37:08 +08:00
|
|
|
cflag &= ~PARODD;
|
|
|
|
|
cflag |= (PARENB|CMSPAR);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
|
|
|
|
default:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - Unknown parity mode, disabling parity\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag &= ~PARENB;
|
|
|
|
|
bits &= ~BITS_PARITY_MASK;
|
2016-02-29 05:51:30 +08:00
|
|
|
cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
cflag &= ~CSTOPB;
|
2008-07-22 18:10:17 +08:00
|
|
|
switch (bits & BITS_STOP_MASK) {
|
|
|
|
|
case BITS_STOP_1:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - stop bits = 1\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
|
|
|
|
case BITS_STOP_1_5:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - stop bits = 1.5 (not supported, using 1 stop bit)\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
bits &= ~BITS_STOP_MASK;
|
2016-02-29 05:51:30 +08:00
|
|
|
cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
|
|
|
|
case BITS_STOP_2:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - stop bits = 2\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
cflag |= CSTOPB;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - Unknown number of stop bits, using 1 stop bit\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
bits &= ~BITS_STOP_MASK;
|
2016-02-29 05:51:30 +08:00
|
|
|
cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2016-05-05 05:57:02 +08:00
|
|
|
cp210x_read_reg_block(port, CP210X_GET_FLOW, &flow_ctl,
|
|
|
|
|
sizeof(flow_ctl));
|
|
|
|
|
ctl_hs = le32_to_cpu(flow_ctl.ulControlHandshake);
|
|
|
|
|
if (ctl_hs & CP210X_SERIAL_CTS_HANDSHAKE) {
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
|
2005-05-27 07:09:56 +08:00
|
|
|
cflag |= CRTSCTS;
|
|
|
|
|
} else {
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - flow control = NONE\n", __func__);
|
2005-05-27 07:09:56 +08:00
|
|
|
cflag &= ~CRTSCTS;
|
|
|
|
|
}
|
|
|
|
|
|
2009-03-13 05:37:42 +08:00
|
|
|
*cflagp = cflag;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2012-01-16 07:36:51 +08:00
|
|
|
/*
|
|
|
|
|
* CP2101 supports the following baud rates:
|
|
|
|
|
*
|
|
|
|
|
* 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 14400, 19200, 28800,
|
|
|
|
|
* 38400, 56000, 57600, 115200, 128000, 230400, 460800, 921600
|
|
|
|
|
*
|
|
|
|
|
* CP2102 and CP2103 support the following additional rates:
|
|
|
|
|
*
|
|
|
|
|
* 4000, 16000, 51200, 64000, 76800, 153600, 250000, 256000, 500000,
|
|
|
|
|
* 576000
|
|
|
|
|
*
|
|
|
|
|
* The device will map a requested rate to a supported one, but the result
|
|
|
|
|
* of requests for rates greater than 1053257 is undefined (see AN205).
|
|
|
|
|
*
|
|
|
|
|
* CP2104, CP2105 and CP2110 support most rates up to 2M, 921k and 1M baud,
|
|
|
|
|
* respectively, with an error less than 1%. The actual rates are determined
|
|
|
|
|
* by
|
|
|
|
|
*
|
|
|
|
|
* div = round(freq / (2 x prescale x request))
|
|
|
|
|
* actual = freq / (2 x prescale x div)
|
|
|
|
|
*
|
|
|
|
|
* For CP2104 and CP2105 freq is 48Mhz and prescale is 4 for request <= 365bps
|
|
|
|
|
* or 1 otherwise.
|
|
|
|
|
* For CP2110 freq is 24Mhz and prescale is 4 for request <= 300bps or 1
|
|
|
|
|
* otherwise.
|
|
|
|
|
*/
|
|
|
|
|
static void cp210x_change_speed(struct tty_struct *tty,
|
|
|
|
|
struct usb_serial_port *port, struct ktermios *old_termios)
|
|
|
|
|
{
|
|
|
|
|
u32 baud;
|
|
|
|
|
|
2012-07-14 22:31:47 +08:00
|
|
|
baud = tty->termios.c_ospeed;
|
2012-01-16 07:36:51 +08:00
|
|
|
|
2012-01-16 07:36:53 +08:00
|
|
|
/* This maps the requested rate to a rate valid on cp2102 or cp2103,
|
|
|
|
|
* or to an arbitrary rate in [1M,2M].
|
2012-01-16 07:36:51 +08:00
|
|
|
*
|
|
|
|
|
* NOTE: B0 is not implemented.
|
|
|
|
|
*/
|
|
|
|
|
baud = cp210x_quantise_baudrate(baud);
|
|
|
|
|
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(&port->dev, "%s - setting baud rate to %u\n", __func__, baud);
|
2016-02-29 05:51:41 +08:00
|
|
|
if (cp210x_write_u32_reg(port, CP210X_SET_BAUDRATE, baud)) {
|
2012-01-16 07:36:51 +08:00
|
|
|
dev_warn(&port->dev, "failed to set baud rate to %u\n", baud);
|
|
|
|
|
if (old_termios)
|
|
|
|
|
baud = old_termios->c_ospeed;
|
|
|
|
|
else
|
|
|
|
|
baud = 9600;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
tty_encode_baud_rate(tty, baud, baud);
|
|
|
|
|
}
|
|
|
|
|
|
2009-06-11 20:54:40 +08:00
|
|
|
static void cp210x_set_termios(struct tty_struct *tty,
|
2008-07-22 18:09:07 +08:00
|
|
|
struct usb_serial_port *port, struct ktermios *old_termios)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2012-09-14 08:18:13 +08:00
|
|
|
struct device *dev = &port->dev;
|
2007-10-18 16:24:24 +08:00
|
|
|
unsigned int cflag, old_cflag;
|
2016-02-29 05:51:30 +08:00
|
|
|
u16 bits;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2012-07-14 22:31:47 +08:00
|
|
|
cflag = tty->termios.c_cflag;
|
2007-07-27 01:54:12 +08:00
|
|
|
old_cflag = old_termios->c_cflag;
|
2012-01-16 07:36:51 +08:00
|
|
|
|
2012-07-14 22:31:47 +08:00
|
|
|
if (tty->termios.c_ospeed != old_termios->c_ospeed)
|
2012-01-16 07:36:51 +08:00
|
|
|
cp210x_change_speed(tty, port, old_termios);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-05-27 07:09:56 +08:00
|
|
|
/* If the number of data bits is to be updated */
|
2005-04-17 06:20:36 +08:00
|
|
|
if ((cflag & CSIZE) != (old_cflag & CSIZE)) {
|
2015-10-29 05:02:54 +08:00
|
|
|
cp210x_get_line_ctl(port, &bits);
|
2005-04-17 06:20:36 +08:00
|
|
|
bits &= ~BITS_DATA_MASK;
|
|
|
|
|
switch (cflag & CSIZE) {
|
2008-07-22 18:10:17 +08:00
|
|
|
case CS5:
|
|
|
|
|
bits |= BITS_DATA_5;
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 5\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
|
|
|
|
case CS6:
|
|
|
|
|
bits |= BITS_DATA_6;
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 6\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
|
|
|
|
case CS7:
|
|
|
|
|
bits |= BITS_DATA_7;
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 7\n", __func__);
|
2008-07-22 18:10:17 +08:00
|
|
|
break;
|
|
|
|
|
case CS8:
|
|
|
|
|
default:
|
2012-10-29 17:56:19 +08:00
|
|
|
bits |= BITS_DATA_8;
|
2016-10-19 21:46:38 +08:00
|
|
|
dev_dbg(dev, "%s - data bits = 8\n", __func__);
|
2012-10-29 17:56:19 +08:00
|
|
|
break;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2016-02-29 05:51:30 +08:00
|
|
|
if (cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits))
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "Number of data bits requested not supported by device\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2011-11-10 02:37:08 +08:00
|
|
|
if ((cflag & (PARENB|PARODD|CMSPAR)) !=
|
|
|
|
|
(old_cflag & (PARENB|PARODD|CMSPAR))) {
|
2015-10-29 05:02:54 +08:00
|
|
|
cp210x_get_line_ctl(port, &bits);
|
2005-04-17 06:20:36 +08:00
|
|
|
bits &= ~BITS_PARITY_MASK;
|
|
|
|
|
if (cflag & PARENB) {
|
2011-11-10 02:37:08 +08:00
|
|
|
if (cflag & CMSPAR) {
|
2012-09-14 08:18:13 +08:00
|
|
|
if (cflag & PARODD) {
|
|
|
|
|
bits |= BITS_PARITY_MARK;
|
|
|
|
|
dev_dbg(dev, "%s - parity = MARK\n", __func__);
|
|
|
|
|
} else {
|
|
|
|
|
bits |= BITS_PARITY_SPACE;
|
|
|
|
|
dev_dbg(dev, "%s - parity = SPACE\n", __func__);
|
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
} else {
|
2012-09-14 08:18:13 +08:00
|
|
|
if (cflag & PARODD) {
|
|
|
|
|
bits |= BITS_PARITY_ODD;
|
|
|
|
|
dev_dbg(dev, "%s - parity = ODD\n", __func__);
|
|
|
|
|
} else {
|
|
|
|
|
bits |= BITS_PARITY_EVEN;
|
|
|
|
|
dev_dbg(dev, "%s - parity = EVEN\n", __func__);
|
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
}
|
2016-02-29 05:51:30 +08:00
|
|
|
if (cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits))
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "Parity mode not supported by device\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
|
2015-10-29 05:02:54 +08:00
|
|
|
cp210x_get_line_ctl(port, &bits);
|
2005-04-17 06:20:36 +08:00
|
|
|
bits &= ~BITS_STOP_MASK;
|
|
|
|
|
if (cflag & CSTOPB) {
|
|
|
|
|
bits |= BITS_STOP_2;
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - stop bits = 2\n", __func__);
|
2005-04-17 06:20:36 +08:00
|
|
|
} else {
|
|
|
|
|
bits |= BITS_STOP_1;
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - stop bits = 1\n", __func__);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2016-02-29 05:51:30 +08:00
|
|
|
if (cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits))
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "Number of stop bits requested not supported by device\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2005-05-27 07:09:56 +08:00
|
|
|
|
|
|
|
|
if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
|
2016-05-05 05:57:02 +08:00
|
|
|
struct cp210x_flow_ctl flow_ctl;
|
|
|
|
|
u32 ctl_hs;
|
|
|
|
|
u32 flow_repl;
|
2016-02-29 05:51:56 +08:00
|
|
|
|
2016-05-05 05:57:02 +08:00
|
|
|
cp210x_read_reg_block(port, CP210X_GET_FLOW, &flow_ctl,
|
|
|
|
|
sizeof(flow_ctl));
|
|
|
|
|
ctl_hs = le32_to_cpu(flow_ctl.ulControlHandshake);
|
|
|
|
|
flow_repl = le32_to_cpu(flow_ctl.ulFlowReplace);
|
|
|
|
|
dev_dbg(dev, "%s - read ulControlHandshake=0x%08x, ulFlowReplace=0x%08x\n",
|
|
|
|
|
__func__, ctl_hs, flow_repl);
|
2005-05-27 07:09:56 +08:00
|
|
|
|
2016-05-05 05:57:11 +08:00
|
|
|
ctl_hs &= ~CP210X_SERIAL_DSR_HANDSHAKE;
|
|
|
|
|
ctl_hs &= ~CP210X_SERIAL_DCD_HANDSHAKE;
|
|
|
|
|
ctl_hs &= ~CP210X_SERIAL_DSR_SENSITIVITY;
|
|
|
|
|
ctl_hs &= ~CP210X_SERIAL_DTR_MASK;
|
|
|
|
|
ctl_hs |= CP210X_SERIAL_DTR_SHIFT(CP210X_SERIAL_DTR_ACTIVE);
|
2005-05-27 07:09:56 +08:00
|
|
|
if (cflag & CRTSCTS) {
|
2016-05-05 05:57:02 +08:00
|
|
|
ctl_hs |= CP210X_SERIAL_CTS_HANDSHAKE;
|
2016-05-05 05:57:11 +08:00
|
|
|
|
|
|
|
|
flow_repl &= ~CP210X_SERIAL_RTS_MASK;
|
2016-05-05 05:57:02 +08:00
|
|
|
flow_repl |= CP210X_SERIAL_RTS_SHIFT(
|
|
|
|
|
CP210X_SERIAL_RTS_FLOW_CTL);
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
|
2005-05-27 07:09:56 +08:00
|
|
|
} else {
|
2016-05-05 05:57:11 +08:00
|
|
|
ctl_hs &= ~CP210X_SERIAL_CTS_HANDSHAKE;
|
|
|
|
|
|
|
|
|
|
flow_repl &= ~CP210X_SERIAL_RTS_MASK;
|
2016-05-05 05:57:02 +08:00
|
|
|
flow_repl |= CP210X_SERIAL_RTS_SHIFT(
|
|
|
|
|
CP210X_SERIAL_RTS_ACTIVE);
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(dev, "%s - flow control = NONE\n", __func__);
|
2005-05-27 07:09:56 +08:00
|
|
|
}
|
|
|
|
|
|
2016-05-05 05:57:02 +08:00
|
|
|
dev_dbg(dev, "%s - write ulControlHandshake=0x%08x, ulFlowReplace=0x%08x\n",
|
|
|
|
|
__func__, ctl_hs, flow_repl);
|
|
|
|
|
flow_ctl.ulControlHandshake = cpu_to_le32(ctl_hs);
|
|
|
|
|
flow_ctl.ulFlowReplace = cpu_to_le32(flow_repl);
|
|
|
|
|
cp210x_write_reg_block(port, CP210X_SET_FLOW, &flow_ctl,
|
|
|
|
|
sizeof(flow_ctl));
|
2005-05-27 07:09:56 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
2012-10-29 17:56:19 +08:00
|
|
|
static int cp210x_tiocmset(struct tty_struct *tty,
|
2005-05-27 07:09:56 +08:00
|
|
|
unsigned int set, unsigned int clear)
|
|
|
|
|
{
|
2008-07-22 18:09:07 +08:00
|
|
|
struct usb_serial_port *port = tty->driver_data;
|
2011-02-15 00:26:50 +08:00
|
|
|
return cp210x_tiocmset_port(port, set, clear);
|
2009-03-13 05:37:42 +08:00
|
|
|
}
|
|
|
|
|
|
2011-02-15 00:26:50 +08:00
|
|
|
static int cp210x_tiocmset_port(struct usb_serial_port *port,
|
2009-03-13 05:37:42 +08:00
|
|
|
unsigned int set, unsigned int clear)
|
|
|
|
|
{
|
2016-02-29 05:51:30 +08:00
|
|
|
u16 control = 0;
|
2005-05-27 07:09:56 +08:00
|
|
|
|
|
|
|
|
if (set & TIOCM_RTS) {
|
|
|
|
|
control |= CONTROL_RTS;
|
|
|
|
|
control |= CONTROL_WRITE_RTS;
|
|
|
|
|
}
|
|
|
|
|
if (set & TIOCM_DTR) {
|
|
|
|
|
control |= CONTROL_DTR;
|
|
|
|
|
control |= CONTROL_WRITE_DTR;
|
|
|
|
|
}
|
|
|
|
|
if (clear & TIOCM_RTS) {
|
|
|
|
|
control &= ~CONTROL_RTS;
|
|
|
|
|
control |= CONTROL_WRITE_RTS;
|
|
|
|
|
}
|
|
|
|
|
if (clear & TIOCM_DTR) {
|
|
|
|
|
control &= ~CONTROL_DTR;
|
|
|
|
|
control |= CONTROL_WRITE_DTR;
|
|
|
|
|
}
|
|
|
|
|
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(&port->dev, "%s - control = 0x%.4x\n", __func__, control);
|
2005-05-27 07:09:56 +08:00
|
|
|
|
2016-02-29 05:51:30 +08:00
|
|
|
return cp210x_write_u16_reg(port, CP210X_SET_MHS, control);
|
2005-05-27 07:09:56 +08:00
|
|
|
}
|
|
|
|
|
|
2009-10-29 04:12:33 +08:00
|
|
|
static void cp210x_dtr_rts(struct usb_serial_port *p, int on)
|
|
|
|
|
{
|
|
|
|
|
if (on)
|
2011-02-15 00:26:50 +08:00
|
|
|
cp210x_tiocmset_port(p, TIOCM_DTR|TIOCM_RTS, 0);
|
2009-10-29 04:12:33 +08:00
|
|
|
else
|
2011-02-15 00:26:50 +08:00
|
|
|
cp210x_tiocmset_port(p, 0, TIOCM_DTR|TIOCM_RTS);
|
2009-10-29 04:12:33 +08:00
|
|
|
}
|
|
|
|
|
|
2012-10-29 17:56:19 +08:00
|
|
|
static int cp210x_tiocmget(struct tty_struct *tty)
|
2005-05-27 07:09:56 +08:00
|
|
|
{
|
2008-07-22 18:09:07 +08:00
|
|
|
struct usb_serial_port *port = tty->driver_data;
|
2016-02-29 05:51:41 +08:00
|
|
|
u8 control;
|
2008-05-31 01:29:55 +08:00
|
|
|
int result;
|
2005-05-27 07:09:56 +08:00
|
|
|
|
2016-10-19 21:45:07 +08:00
|
|
|
result = cp210x_read_u8_reg(port, CP210X_GET_MDMSTS, &control);
|
|
|
|
|
if (result)
|
|
|
|
|
return result;
|
2005-05-27 07:09:56 +08:00
|
|
|
|
|
|
|
|
result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0)
|
|
|
|
|
|((control & CONTROL_RTS) ? TIOCM_RTS : 0)
|
|
|
|
|
|((control & CONTROL_CTS) ? TIOCM_CTS : 0)
|
|
|
|
|
|((control & CONTROL_DSR) ? TIOCM_DSR : 0)
|
|
|
|
|
|((control & CONTROL_RING)? TIOCM_RI : 0)
|
|
|
|
|
|((control & CONTROL_DCD) ? TIOCM_CD : 0);
|
|
|
|
|
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(&port->dev, "%s - control = 0x%.2x\n", __func__, control);
|
2005-05-27 07:09:56 +08:00
|
|
|
|
|
|
|
|
return result;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2012-10-29 17:56:19 +08:00
|
|
|
static void cp210x_break_ctl(struct tty_struct *tty, int break_state)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-07-22 18:09:07 +08:00
|
|
|
struct usb_serial_port *port = tty->driver_data;
|
2016-02-29 05:51:30 +08:00
|
|
|
u16 state;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
if (break_state == 0)
|
|
|
|
|
state = BREAK_OFF;
|
|
|
|
|
else
|
|
|
|
|
state = BREAK_ON;
|
2012-09-14 08:18:13 +08:00
|
|
|
dev_dbg(&port->dev, "%s - turning break %s\n", __func__,
|
|
|
|
|
state == BREAK_OFF ? "off" : "on");
|
2016-02-29 05:51:30 +08:00
|
|
|
cp210x_write_u16_reg(port, CP210X_SET_BREAK, state);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
2016-10-20 22:13:54 +08:00
|
|
|
#ifdef CONFIG_GPIOLIB
|
|
|
|
|
static int cp210x_gpio_request(struct gpio_chip *gc, unsigned int offset)
|
|
|
|
|
{
|
|
|
|
|
struct usb_serial *serial = gpiochip_get_data(gc);
|
|
|
|
|
struct cp210x_serial_private *priv = usb_get_serial_data(serial);
|
|
|
|
|
|
|
|
|
|
switch (offset) {
|
|
|
|
|
case 0:
|
|
|
|
|
if (priv->config & CP2105_GPIO0_TXLED_MODE)
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
if (priv->config & (CP2105_GPIO1_RXLED_MODE |
|
|
|
|
|
CP2105_GPIO1_RS485_MODE))
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int cp210x_gpio_get(struct gpio_chip *gc, unsigned int gpio)
|
|
|
|
|
{
|
|
|
|
|
struct usb_serial *serial = gpiochip_get_data(gc);
|
|
|
|
|
int result;
|
|
|
|
|
u8 buf;
|
|
|
|
|
|
|
|
|
|
result = cp210x_read_vendor_block(serial, REQTYPE_INTERFACE_TO_HOST,
|
|
|
|
|
CP210X_READ_LATCH, &buf, sizeof(buf));
|
|
|
|
|
if (result < 0)
|
|
|
|
|
return result;
|
|
|
|
|
|
|
|
|
|
return !!(buf & BIT(gpio));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cp210x_gpio_set(struct gpio_chip *gc, unsigned int gpio, int value)
|
|
|
|
|
{
|
|
|
|
|
struct usb_serial *serial = gpiochip_get_data(gc);
|
|
|
|
|
struct cp210x_gpio_write buf;
|
|
|
|
|
|
|
|
|
|
if (value == 1)
|
|
|
|
|
buf.state = BIT(gpio);
|
|
|
|
|
else
|
|
|
|
|
buf.state = 0;
|
|
|
|
|
|
|
|
|
|
buf.mask = BIT(gpio);
|
|
|
|
|
|
|
|
|
|
cp210x_write_vendor_block(serial, REQTYPE_HOST_TO_INTERFACE,
|
|
|
|
|
CP210X_WRITE_LATCH, &buf, sizeof(buf));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int cp210x_gpio_direction_get(struct gpio_chip *gc, unsigned int gpio)
|
|
|
|
|
{
|
|
|
|
|
/* Hardware does not support an input mode */
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int cp210x_gpio_direction_input(struct gpio_chip *gc, unsigned int gpio)
|
|
|
|
|
{
|
|
|
|
|
/* Hardware does not support an input mode */
|
|
|
|
|
return -ENOTSUPP;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int cp210x_gpio_direction_output(struct gpio_chip *gc, unsigned int gpio,
|
|
|
|
|
int value)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2017-01-23 20:34:34 +08:00
|
|
|
static int cp210x_gpio_set_config(struct gpio_chip *gc, unsigned int gpio,
|
|
|
|
|
unsigned long config)
|
2016-10-20 22:13:54 +08:00
|
|
|
{
|
|
|
|
|
struct usb_serial *serial = gpiochip_get_data(gc);
|
|
|
|
|
struct cp210x_serial_private *priv = usb_get_serial_data(serial);
|
2017-01-23 20:34:34 +08:00
|
|
|
enum pin_config_param param = pinconf_to_config_param(config);
|
2016-10-20 22:13:54 +08:00
|
|
|
|
|
|
|
|
/* Succeed only if in correct mode (this can't be set at runtime) */
|
2017-01-23 20:34:34 +08:00
|
|
|
if ((param == PIN_CONFIG_DRIVE_PUSH_PULL) &&
|
|
|
|
|
(priv->gpio_mode & BIT(gpio)))
|
2016-10-20 22:13:54 +08:00
|
|
|
return 0;
|
|
|
|
|
|
2017-01-23 20:34:34 +08:00
|
|
|
if ((param == PIN_CONFIG_DRIVE_OPEN_DRAIN) &&
|
|
|
|
|
!(priv->gpio_mode & BIT(gpio)))
|
2016-10-20 22:13:54 +08:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return -ENOTSUPP;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This function is for configuring GPIO using shared pins, where other signals
|
|
|
|
|
* are made unavailable by configuring the use of GPIO. This is believed to be
|
|
|
|
|
* only applicable to the cp2105 at this point, the other devices supported by
|
|
|
|
|
* this driver that provide GPIO do so in a way that does not impact other
|
|
|
|
|
* signals and are thus expected to have very different initialisation.
|
|
|
|
|
*/
|
|
|
|
|
static int cp2105_shared_gpio_init(struct usb_serial *serial)
|
|
|
|
|
{
|
|
|
|
|
struct cp210x_serial_private *priv = usb_get_serial_data(serial);
|
|
|
|
|
struct cp210x_pin_mode mode;
|
|
|
|
|
struct cp210x_config config;
|
|
|
|
|
u8 intf_num = cp210x_interface_num(serial);
|
|
|
|
|
int result;
|
|
|
|
|
|
|
|
|
|
result = cp210x_read_vendor_block(serial, REQTYPE_DEVICE_TO_HOST,
|
|
|
|
|
CP210X_GET_DEVICEMODE, &mode,
|
|
|
|
|
sizeof(mode));
|
|
|
|
|
if (result < 0)
|
|
|
|
|
return result;
|
|
|
|
|
|
|
|
|
|
result = cp210x_read_vendor_block(serial, REQTYPE_DEVICE_TO_HOST,
|
|
|
|
|
CP210X_GET_PORTCONFIG, &config,
|
|
|
|
|
sizeof(config));
|
|
|
|
|
if (result < 0)
|
|
|
|
|
return result;
|
|
|
|
|
|
|
|
|
|
/* 2 banks of GPIO - One for the pins taken from each serial port */
|
|
|
|
|
if (intf_num == 0) {
|
|
|
|
|
if (mode.eci == CP210X_PIN_MODE_MODEM)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
priv->config = config.eci_cfg;
|
|
|
|
|
priv->gpio_mode = (u8)((le16_to_cpu(config.gpio_mode) &
|
|
|
|
|
CP210X_ECI_GPIO_MODE_MASK) >>
|
|
|
|
|
CP210X_ECI_GPIO_MODE_OFFSET);
|
|
|
|
|
priv->gc.ngpio = 2;
|
|
|
|
|
} else if (intf_num == 1) {
|
|
|
|
|
if (mode.sci == CP210X_PIN_MODE_MODEM)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
priv->config = config.sci_cfg;
|
|
|
|
|
priv->gpio_mode = (u8)((le16_to_cpu(config.gpio_mode) &
|
|
|
|
|
CP210X_SCI_GPIO_MODE_MASK) >>
|
|
|
|
|
CP210X_SCI_GPIO_MODE_OFFSET);
|
|
|
|
|
priv->gc.ngpio = 3;
|
|
|
|
|
} else {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
priv->gc.label = "cp210x";
|
|
|
|
|
priv->gc.request = cp210x_gpio_request;
|
|
|
|
|
priv->gc.get_direction = cp210x_gpio_direction_get;
|
|
|
|
|
priv->gc.direction_input = cp210x_gpio_direction_input;
|
|
|
|
|
priv->gc.direction_output = cp210x_gpio_direction_output;
|
|
|
|
|
priv->gc.get = cp210x_gpio_get;
|
|
|
|
|
priv->gc.set = cp210x_gpio_set;
|
2017-01-23 20:34:34 +08:00
|
|
|
priv->gc.set_config = cp210x_gpio_set_config;
|
2016-10-20 22:13:54 +08:00
|
|
|
priv->gc.owner = THIS_MODULE;
|
|
|
|
|
priv->gc.parent = &serial->interface->dev;
|
|
|
|
|
priv->gc.base = -1;
|
|
|
|
|
priv->gc.can_sleep = true;
|
|
|
|
|
|
|
|
|
|
result = gpiochip_add_data(&priv->gc, serial);
|
|
|
|
|
if (!result)
|
2016-10-24 17:58:12 +08:00
|
|
|
priv->gpio_registered = true;
|
2016-10-20 22:13:54 +08:00
|
|
|
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cp210x_gpio_remove(struct usb_serial *serial)
|
|
|
|
|
{
|
|
|
|
|
struct cp210x_serial_private *priv = usb_get_serial_data(serial);
|
|
|
|
|
|
|
|
|
|
if (priv->gpio_registered) {
|
|
|
|
|
gpiochip_remove(&priv->gc);
|
2016-10-24 17:58:12 +08:00
|
|
|
priv->gpio_registered = false;
|
2016-10-20 22:13:54 +08:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
static int cp2105_shared_gpio_init(struct usb_serial *serial)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cp210x_gpio_remove(struct usb_serial *serial)
|
|
|
|
|
{
|
|
|
|
|
/* Nothing to do */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
2015-10-29 05:02:34 +08:00
|
|
|
static int cp210x_port_probe(struct usb_serial_port *port)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2015-10-29 05:02:34 +08:00
|
|
|
struct usb_serial *serial = port->serial;
|
|
|
|
|
struct cp210x_port_private *port_priv;
|
2015-10-29 05:02:54 +08:00
|
|
|
int ret;
|
2012-02-25 03:42:39 +08:00
|
|
|
|
2015-10-29 05:02:34 +08:00
|
|
|
port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL);
|
|
|
|
|
if (!port_priv)
|
2012-10-15 21:47:20 +08:00
|
|
|
return -ENOMEM;
|
2012-02-25 03:42:39 +08:00
|
|
|
|
2016-10-20 22:13:54 +08:00
|
|
|
port_priv->bInterfaceNumber = cp210x_interface_num(serial);
|
2012-02-25 03:42:39 +08:00
|
|
|
|
2015-10-29 05:02:34 +08:00
|
|
|
usb_set_serial_port_data(port, port_priv);
|
2012-02-25 03:42:39 +08:00
|
|
|
|
2015-10-29 05:02:54 +08:00
|
|
|
ret = cp210x_detect_swapped_line_ctl(port);
|
|
|
|
|
if (ret) {
|
|
|
|
|
kfree(port_priv);
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
2012-02-25 03:42:39 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2015-10-29 05:02:34 +08:00
|
|
|
static int cp210x_port_remove(struct usb_serial_port *port)
|
2012-02-25 03:42:39 +08:00
|
|
|
{
|
2015-10-29 05:02:34 +08:00
|
|
|
struct cp210x_port_private *port_priv;
|
|
|
|
|
|
|
|
|
|
port_priv = usb_get_serial_port_data(port);
|
|
|
|
|
kfree(port_priv);
|
2012-02-25 03:42:39 +08:00
|
|
|
|
2015-10-29 05:02:34 +08:00
|
|
|
return 0;
|
2012-02-25 03:42:39 +08:00
|
|
|
}
|
|
|
|
|
|
2016-10-20 22:13:54 +08:00
|
|
|
static int cp210x_attach(struct usb_serial *serial)
|
|
|
|
|
{
|
|
|
|
|
int result;
|
|
|
|
|
struct cp210x_serial_private *priv;
|
|
|
|
|
|
|
|
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
|
|
|
|
if (!priv)
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
|
|
result = cp210x_read_vendor_block(serial, REQTYPE_DEVICE_TO_HOST,
|
|
|
|
|
CP210X_GET_PARTNUM, &priv->partnum,
|
|
|
|
|
sizeof(priv->partnum));
|
2017-09-12 15:50:59 +08:00
|
|
|
if (result < 0) {
|
|
|
|
|
dev_warn(&serial->interface->dev,
|
|
|
|
|
"querying part number failed\n");
|
|
|
|
|
priv->partnum = CP210X_PARTNUM_UNKNOWN;
|
|
|
|
|
}
|
2016-10-20 22:13:54 +08:00
|
|
|
|
|
|
|
|
usb_set_serial_data(serial, priv);
|
|
|
|
|
|
|
|
|
|
if (priv->partnum == CP210X_PARTNUM_CP2105) {
|
|
|
|
|
result = cp2105_shared_gpio_init(serial);
|
|
|
|
|
if (result < 0) {
|
|
|
|
|
dev_err(&serial->interface->dev,
|
|
|
|
|
"GPIO initialisation failed, continuing without GPIO support\n");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cp210x_disconnect(struct usb_serial *serial)
|
|
|
|
|
{
|
|
|
|
|
cp210x_gpio_remove(serial);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cp210x_release(struct usb_serial *serial)
|
|
|
|
|
{
|
|
|
|
|
struct cp210x_serial_private *priv = usb_get_serial_data(serial);
|
|
|
|
|
|
|
|
|
|
cp210x_gpio_remove(serial);
|
|
|
|
|
|
|
|
|
|
kfree(priv);
|
|
|
|
|
}
|
|
|
|
|
|
2012-05-09 06:46:14 +08:00
|
|
|
module_usb_serial_driver(serial_drivers, id_table);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
2017-11-04 01:12:08 +08:00
|
|
|
MODULE_LICENSE("GPL v2");
|
