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USB Relay Box 1
Commit 9da7e1fb authored by Dimitris Lampridis's avatar Dimitris Lampridis
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[sw] update driver to latest Linux kernel upstream source (b678c56). It now includes GPIO support.

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*
!.gitignore
!cp210x.c
!Makefile
sw/cp210x-driver/cp210x.c
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// SPDX-License-Identifier: GPL-2.0
/*
* Silicon Laboratories CP210x USB to RS232 serial adaptor driver
*
* Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* 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
......@@ -23,11 +20,10 @@
#include <linux/usb.h>
#include <linux/uaccess.h>
#include <linux/usb/serial.h>
#include <linux/gpio/driver.h>
#include <linux/bitops.h>
#include <linux/mutex.h>
/*
* Version Information
*/
#define DRIVER_VERSION "v0.09"
#define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver"
/*
......@@ -35,40 +31,43 @@
*/
static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *);
static void cp210x_close(struct usb_serial_port *);
static int cp210x_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg);
static void cp210x_get_termios(struct tty_struct *,
struct usb_serial_port *port);
static void cp210x_get_termios(struct tty_struct *, struct usb_serial_port *);
static void cp210x_get_termios_port(struct usb_serial_port *port,
unsigned int *cflagp, unsigned int *baudp);
tcflag_t *cflagp, unsigned int *baudp);
static void cp210x_change_speed(struct tty_struct *, struct usb_serial_port *,
struct ktermios *);
static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *,
struct ktermios*);
static bool cp210x_tx_empty(struct usb_serial_port *port);
static int cp210x_tiocmget(struct tty_struct *);
static int cp210x_tiocmset(struct tty_struct *, unsigned int, unsigned int);
static int cp210x_tiocmset_port(struct usb_serial_port *port,
unsigned int, unsigned int);
static void cp210x_break_ctl(struct tty_struct *, int);
static int cp210x_startup(struct usb_serial *);
static int cp210x_attach(struct usb_serial *);
static void cp210x_disconnect(struct usb_serial *);
static void cp210x_release(struct usb_serial *);
static int cp210x_port_probe(struct usb_serial_port *);
static int cp210x_port_remove(struct usb_serial_port *);
static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
static bool debug;
static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */
{ USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
{ USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
{ USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
{ USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */
{ USB_DEVICE(0x0846, 0x1100) }, /* NetGear Managed Switch M4100 series, M5300 series, M7100 series */
{ USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */
{ USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */
{ USB_DEVICE(0x0908, 0x01FF) }, /* Siemens RUGGEDCOM USB Serial Console */
{ USB_DEVICE(0x0B00, 0x3070) }, /* Ingenico 3070 */
{ USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */
{ USB_DEVICE(0x0BED, 0x1101) }, /* MEI series 2000 Combo Acceptor */
{ USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */
{ USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */
{ USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */
{ USB_DEVICE(0x0FDE, 0xCA05) }, /* OWL Wireless Electricity Monitor CM-160 */
{ USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */
{ USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */
{ USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */
......@@ -81,9 +80,11 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */
{ USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
{ USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */
{ USB_DEVICE(0x10C4, 0x8056) }, /* Lorenz Messtechnik devices */
{ USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
{ USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */
{ USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */
{ USB_DEVICE(0x10C4, 0x80C4) }, /* Cygnal Integrated Products, Inc., Optris infrared thermometer */
{ USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */
{ USB_DEVICE(0x10C4, 0x80DD) }, /* Tracient RFID */
{ USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */
......@@ -92,8 +93,13 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x10C4, 0x813F) }, /* Tams Master Easy Control */
{ USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */
{ USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */
{ USB_DEVICE(0x2405, 0x0003) }, /* West Mountain Radio RIGblaster Advantage */
{ USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */
{ USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */
{ USB_DEVICE(0x10C4, 0x815F) }, /* Timewave HamLinkUSB */
{ USB_DEVICE(0x10C4, 0x817C) }, /* CESINEL MEDCAL N Power Quality Monitor */
{ USB_DEVICE(0x10C4, 0x817D) }, /* CESINEL MEDCAL NT Power Quality Monitor */
{ USB_DEVICE(0x10C4, 0x817E) }, /* CESINEL MEDCAL S Power Quality Monitor */
{ USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */
{ USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */
{ USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */
......@@ -101,6 +107,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
{ USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
{ USB_DEVICE(0x10C4, 0x81D7) }, /* IAI Corp. RCB-CV-USB USB to RS485 Adaptor */
{ USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
{ USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
{ USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */
......@@ -108,7 +115,12 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */
{ USB_DEVICE(0x10C4, 0x822B) }, /* Modem EDGE(GSM) Comander 2 */
{ USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */
{ USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */
{ USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */
{ USB_DEVICE(0x10C4, 0x82EF) }, /* CESINEL FALCO 6105 AC Power Supply */
{ USB_DEVICE(0x10C4, 0x82F1) }, /* CESINEL MEDCAL EFD Earth Fault Detector */
{ USB_DEVICE(0x10C4, 0x82F2) }, /* CESINEL MEDCAL ST Network Analyzer */
{ USB_DEVICE(0x10C4, 0x82F4) }, /* Starizona MicroTouch */
{ USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
{ USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */
......@@ -117,25 +129,59 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */
{ USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */
{ USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
{ USB_DEVICE(0x10C4, 0x8470) }, /* Juniper Networks BX Series System Console */
{ USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */
{ USB_DEVICE(0x10C4, 0x84B6) }, /* Starizona Hyperion */
{ USB_DEVICE(0x10C4, 0x851E) }, /* CESINEL MEDCAL PT Network Analyzer */
{ USB_DEVICE(0x10C4, 0x85A7) }, /* LifeScan OneTouch Verio IQ */
{ USB_DEVICE(0x10C4, 0x85B8) }, /* CESINEL ReCon T Energy Logger */
{ USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */
{ USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */
{ USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */
{ USB_DEVICE(0x10C4, 0x8664) }, /* AC-Services CAN-IF */
{ USB_DEVICE(0x10C4, 0x8665) }, /* AC-Services OBD-IF */
{ USB_DEVICE(0x10C4, 0x8856) }, /* CEL EM357 ZigBee USB Stick - LR */
{ USB_DEVICE(0x10C4, 0x8857) }, /* CEL EM357 ZigBee USB Stick */
{ USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */
{ USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */
{ USB_DEVICE(0x10C4, 0x88FB) }, /* CESINEL MEDCAL STII Network Analyzer */
{ USB_DEVICE(0x10C4, 0x8938) }, /* CESINEL MEDCAL S II Network Analyzer */
{ USB_DEVICE(0x10C4, 0x8946) }, /* Ketra N1 Wireless Interface */
{ USB_DEVICE(0x10C4, 0x8962) }, /* Brim Brothers charging dock */
{ USB_DEVICE(0x10C4, 0x8977) }, /* CEL MeshWorks DevKit Device */
{ USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */
{ USB_DEVICE(0x10C4, 0x89A4) }, /* CESINEL FTBC Flexible Thyristor Bridge Controller */
{ USB_DEVICE(0x10C4, 0x89FB) }, /* Qivicon ZigBee USB Radio Stick */
{ USB_DEVICE(0x10C4, 0x8A2A) }, /* HubZ dual ZigBee and Z-Wave dongle */
{ USB_DEVICE(0x10C4, 0x8A5E) }, /* CEL EM3588 ZigBee USB Stick Long Range */
{ USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */
{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA63) }, /* Silicon Labs Windows Update (CP2101-4/CP2102N) */
{ USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA80) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
{ USB_DEVICE(0x10C4, 0xEA7A) }, /* Silicon Labs Windows Update (CP2105) */
{ USB_DEVICE(0x10C4, 0xEA7B) }, /* Silicon Labs Windows Update (CP2108) */
{ 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 */
{ USB_DEVICE(0x10C5, 0xEA61) }, /* Silicon Labs MobiData GPRS USB Modem */
{ USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */
{ USB_DEVICE(0x12B8, 0xEC60) }, /* Link G4 ECU */
{ USB_DEVICE(0x12B8, 0xEC62) }, /* Link G4+ ECU */
{ USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */
{ USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */
{ USB_DEVICE(0x155A, 0x1006) }, /* ELDAT Easywave RX09 */
{ USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal Automation Controller */
{ USB_DEVICE(0x166A, 0x0301) }, /* Clipsal 5800PC C-Bus Wireless PC Interface */
{ USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */
{ 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 */
{ USB_DEVICE(0x16C0, 0x09B0) }, /* Lunatico Seletek */
{ USB_DEVICE(0x16C0, 0x09B1) }, /* Lunatico Seletek */
{ USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
{ 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 */
......@@ -146,46 +192,92 @@ static const struct usb_device_id id_table[] = {
{ 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 */
{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
{ USB_DEVICE(0x18EF, 0xE030) }, /* ELV ALC 8xxx Battery Charger */
{ USB_DEVICE(0x18EF, 0xE032) }, /* ELV TFD500 Data Logger */
{ USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
{ USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
{ USB_DEVICE(0x1901, 0x0194) }, /* GE Healthcare Remote Alarm Box */
{ USB_DEVICE(0x1901, 0x0195) }, /* GE B850/B650/B450 CP2104 DP UART interface */
{ USB_DEVICE(0x1901, 0x0196) }, /* GE B850 CP2105 DP UART interface */
{ USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */
{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
{ USB_DEVICE(0x1BA4, 0x0002) }, /* Silicon Labs 358x factory default */
{ USB_DEVICE(0x1BE3, 0x07A6) }, /* WAGO 750-923 USB Service Cable */
{ USB_DEVICE(0x1D6F, 0x0010) }, /* Seluxit ApS RF Dongle */
{ USB_DEVICE(0x1E29, 0x0102) }, /* Festo CPX-USB */
{ USB_DEVICE(0x1E29, 0x0501) }, /* Festo CMSP */
{ 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 */
{ USB_DEVICE(0x2626, 0xEA60) }, /* Aruba Networks 7xxx USB Serial Console */
{ USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */
{ USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */
{ USB_DEVICE(0x3195, 0xF281) }, /* Link Instruments MSO-28 */
{ USB_DEVICE(0x3923, 0x7A0B) }, /* National Instruments USB Serial Console */
{ USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */
{ } /* Terminating Entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
struct cp210x_port_private {
__u8 bInterfaceNumber;
__u8 bPartNumber;
struct cp210x_serial_private {
#ifdef CONFIG_GPIOLIB
struct gpio_chip gc;
bool gpio_registered;
u8 gpio_pushpull;
u8 gpio_altfunc;
u8 gpio_input;
#endif
u8 partnum;
speed_t min_speed;
speed_t max_speed;
bool use_actual_rate;
};
/*static struct usb_driver cp210x_driver = {
.name = "cp210x",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
.no_dynamic_id = 1,
};*/
struct cp210x_port_private {
__u8 bInterfaceNumber;
bool has_swapped_line_ctl;
};
static struct usb_serial_driver cp210x_device = {
.driver = {
.owner = THIS_MODULE,
.name = "cp210x",
.name = "cp210x",
},
// .usb_driver = &cp210x_driver,
.id_table = id_table,
.num_ports = 1,
.bulk_in_size = 256,
.bulk_out_size = 256,
.open = cp210x_open,
.close = cp210x_close,
.ioctl = cp210x_ioctl,
.break_ctl = cp210x_break_ctl,
.set_termios = cp210x_set_termios,
.tiocmget = cp210x_tiocmget,
.tx_empty = cp210x_tx_empty,
.tiocmget = cp210x_tiocmget,
.tiocmset = cp210x_tiocmset,
.attach = cp210x_startup,
.release = cp210x_release,
.attach = cp210x_attach,
.disconnect = cp210x_disconnect,
.release = cp210x_release,
.port_probe = cp210x_port_probe,
.port_remove = cp210x_port_remove,
.dtr_rts = cp210x_dtr_rts
};
......@@ -193,19 +285,6 @@ static struct usb_serial_driver * const serial_drivers[] = {
&cp210x_device, NULL
};
/* Part number definitions */
#define CP2101_PARTNUM 0x01
#define CP2102_PARTNUM 0x02
#define CP2103_PARTNUM 0x03
#define CP2104_PARTNUM 0x04
#define CP2105_PARTNUM 0x05
#define CP2108_PARTNUM 0x08
/* IOCTLs */
#define IOCTL_GPIOGET 0x8000
#define IOCTL_GPIOSET 0x8001
/* Config request types */
#define REQTYPE_HOST_TO_INTERFACE 0x41
#define REQTYPE_INTERFACE_TO_HOST 0xc1
......@@ -245,11 +324,6 @@ static struct usb_serial_driver * const serial_drivers[] = {
#define UART_ENABLE 0x0001
#define UART_DISABLE 0x0000
/* CP210X_VENDOR_SPECIFIC */
#define CP210X_WRITE_LATCH 0x37E1
#define CP210X_READ_LATCH 0x00C2
#define CP210X_GET_PARTNUM 0x370B
/* CP210X_(SET|GET)_BAUDDIV */
#define BAUD_RATE_GEN_FREQ 0x384000
......@@ -287,155 +361,454 @@ static struct usb_serial_driver * const serial_drivers[] = {
#define CONTROL_WRITE_DTR 0x0100
#define CONTROL_WRITE_RTS 0x0200
/* CP210X_VENDOR_SPECIFIC values */
#define CP210X_READ_2NCONFIG 0x000E
#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
#define CP210X_PARTNUM_CP2102N_QFN28 0x20
#define CP210X_PARTNUM_CP2102N_QFN24 0x21
#define CP210X_PARTNUM_CP2102N_QFN20 0x22
#define CP210X_PARTNUM_UNKNOWN 0xFF
/* 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;
/*
* 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
/* 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
/* 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_get_config
* Reads from the CP210x configuration registers
* 'size' is specified in bytes.
* 'data' is a pointer to a pre-allocated array of integers large
* enough to hold 'size' bytes (with 4 bytes to each integer)
* CP210X_VENDOR_SPECIFIC, CP210X_GET_PORTCONFIG call reads these 0xf bytes
* on a CP2105 chip. Structure needs padding due to unused/unspecified bytes.
*/
static int cp210x_get_config(struct usb_serial_port *port, u8 requestType,
u8 request, int value, unsigned int *data, int size)
struct cp210x_dual_port_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;
/*
* CP210X_VENDOR_SPECIFIC, CP210X_GET_PORTCONFIG call reads these 0xd bytes
* on a CP2104 chip. Structure needs padding due to unused/unspecified bytes.
*/
struct cp210x_single_port_config {
__le16 gpio_mode;
u8 __pad0[2];
__le16 reset_state;
u8 __pad1[4];
__le16 suspend_state;
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)
#define CP210X_GPIO_MODE_OFFSET 8
#define CP210X_GPIO_MODE_MASK GENMASK(11, 8)
/* 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)
/* CP2104 port configuration values */
#define CP2104_GPIO0_TXLED_MODE BIT(0)
#define CP2104_GPIO1_RXLED_MODE BIT(1)
#define CP2104_GPIO2_RS485_MODE BIT(2)
/* CP2102N configuration array indices */
#define CP210X_2NCONFIG_CONFIG_VERSION_IDX 2
#define CP210X_2NCONFIG_GPIO_MODE_IDX 581
#define CP210X_2NCONFIG_GPIO_RSTLATCH_IDX 587
#define CP210X_2NCONFIG_GPIO_CONTROL_IDX 600
/* 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;
}
/*
* Reads a variable-sized block of CP210X_ registers, identified by req.
* Returns data into buf in native USB byte order.
*/
static int cp210x_read_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);
__le32 *buf;
int result, i, length;
/* Number of integers required to contain the array */
length = (((size - 1) | 3) + 1)/4;
void *dmabuf;
int result;
buf = kcalloc(length, sizeof(__le32), GFP_KERNEL);
if (!buf) {
dev_err(&port->dev, "%s - out of memory.\n", __func__);
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);
return -ENOMEM;
}
/* Issue the request, attempting to read 'size' bytes */
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
request, requestType, value,
port_priv->bInterfaceNumber, buf, size, 300);
/* Convert data into an array of integers */
for (i = 0; i < length; i++)
data[i] = le32_to_cpu(buf[i]);
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)
result = -EIO;
/*
* FIXME Some callers don't bother to check for error,
* at least give them consistent junk until they are fixed
*/
memset(buf, 0, bufsize);
}
kfree(buf);
kfree(dmabuf);
if (result != size) {
dbg("%s - Unable to send config request, "
"request=0x%x size=%d result=%d\n",
__func__, request, size, result);
if (result > 0)
result = -EPROTO;
return result;
}
return result;
/*
* 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;
}
*val = le32_to_cpu(le32_val);
return 0;
}
/*
* 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);
return 0;
}
/*
* cp210x_set_config
* Writes to the CP210x configuration registers
* Values less than 16 bits wide are sent directly
* 'size' is specified in bytes.
* 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));
}
/*
* 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;
}
/*
* Writes any 16-bit CP210X_ register (req) whose value is passed
* entirely in the wValue field of the USB request.
*/
static int cp210x_set_config(struct usb_serial_port *port, u8 requestType,
u8 request, int value, unsigned int *data, int size)
static int cp210x_write_u16_reg(struct usb_serial_port *port, u8 req, u16 val)
{
struct usb_serial *serial = port->serial;
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
__le32 *buf = NULL;
int result, i, length = 0;
if (size)
{
/* Number of integers required to contain the array */
length = (((size - 1) | 3) + 1)/4;
buf = kmalloc(length * sizeof(__le32), GFP_KERNEL);
if (!buf) {
dev_err(&port->dev, "%s - out of memory.\n",
__func__);
return -ENOMEM;
}
int result;
/* Array of integers into bytes */
for (i = 0; i < length; i++)
buf[i] = cpu_to_le32(data[i]);
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);
}
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0),
request, requestType, value,
port_priv->bInterfaceNumber, buf, size, 300);
return result;
}
/*
* 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;
dmabuf = kmemdup(buf, bufsize, GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
if (buf)
kfree(buf);
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);
if (result != size) {
dbg("%s - Unable to send request, "