From: R. Steve McKown Date: Tue, 3 Jul 2012 03:19:08 +0000 (-0600) Subject: The default cp210x.c is now good for natty-precise X-Git-Tag: debian/0.11.4-1tmi~5 X-Git-Url: https://oss.titaniummirror.com/gitweb?p=cp210x.git;a=commitdiff_plain;h=ddb5e7353f20ff997659f72a0d2e67cfd7be6253 The default cp210x.c is now good for natty-precise --- diff --git a/src/Makefile32 b/src/Makefile32 new file mode 100644 index 0000000..a3b6425 --- /dev/null +++ b/src/Makefile32 @@ -0,0 +1,7 @@ +# CP2101/CP2102/CP2103 2.6 makefile + +EXTRA_CFLAGS += -I$(LINUX_INCLUDE) -I$(LINUX_KERNEL)/drivers/usb/serial -DLINUX26 + +obj-m := cp210x.o + +cp210x-objs := $(OBJS) diff --git a/src/cp210x.c b/src/cp210x.c index feab925..d88d980 100644 --- a/src/cp210x.c +++ b/src/cp210x.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include #include "cp210x.h" @@ -34,19 +34,25 @@ /* * Function Prototypes */ -static int cp210x_open(struct usb_serial_port*, struct file*); -static void cp210x_cleanup(struct usb_serial_port*); -static void cp210x_close(struct usb_serial_port*, struct file*); -static void cp210x_get_termios(struct usb_serial_port*); -static void cp210x_set_termios(struct usb_serial_port*, struct ktermios*); -static int cp210x_tiocmget(struct usb_serial_port *, struct file *); -static int cp210x_tiocmset(struct usb_serial_port *, struct file *, +static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *); +static void cp210x_close(struct usb_serial_port *); +static void cp210x_get_termios(struct tty_struct *, + struct usb_serial_port *port); +static void cp210x_get_termios_port(struct usb_serial_port *port, + unsigned int *cflagp, unsigned int *baudp); +static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *, + struct ktermios*); +static int cp210x_tiocmget(struct tty_struct *, struct file *); +static int cp210x_tiocmset(struct tty_struct *, struct file *, unsigned int, unsigned int); -static void cp210x_break_ctl(struct usb_serial_port*, int); +static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *, + unsigned int, unsigned int); +static void cp210x_break_ctl(struct tty_struct *, int); static int cp210x_startup(struct usb_serial *); -static void cp210x_shutdown(struct usb_serial*); -static int cp210x_ioctl(struct usb_serial_port *, struct file *, +static int cp210x_ioctl(struct tty_struct *, struct file *, unsigned int, unsigned long); +static void cp210x_dtr_rts(struct usb_serial_port *p, int on); +static int cp210x_carrier_raised(struct usb_serial_port *p); static int debug; @@ -56,6 +62,8 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */ { 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(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 */ @@ -67,9 +75,12 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */ { USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */ { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */ + { USB_DEVICE(0x10C4, 0x8044) }, /* Cygnal Debug Adapter */ + { 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, 0x8066) }, /* Argussoft In-System Programmer */ + { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */ { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */ { USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */ { USB_DEVICE(0x10C4, 0x80DD) }, /* Tracient RFID */ @@ -77,12 +88,15 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8115) }, /* Arygon NFC/Mifare Reader */ { USB_DEVICE(0x10C4, 0x813D) }, /* Burnside Telecom Deskmobile */ { USB_DEVICE(0x10C4, 0x813F) }, /* Tams Master Easy Control */ + { USB_DEVICE(0x10C4, 0x8149) }, /* West Mountain Radio Computerized Battery Analyzer */ { USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */ { USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */ { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ + { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */ { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ { 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, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */ { USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */ @@ -100,6 +114,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */ { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */ { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */ + { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */ { USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */ { USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */ { USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */ @@ -110,6 +125,8 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */ { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */ + { 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(0x413C, 0x9500) }, /* DW700 GPS USB interface */ { } /* Terminating Entry */ @@ -132,10 +149,9 @@ static struct usb_serial_driver cp210x_device = { }, .usb_driver = &cp210x_driver, .id_table = id_table, - .num_interrupt_in = 0, - .num_bulk_in = NUM_DONT_CARE, - .num_bulk_out = NUM_DONT_CARE, .num_ports = 1, + .bulk_in_size = 256, + .bulk_out_size = 256, .open = cp210x_open, .close = cp210x_close, .ioctl = cp210x_ioctl, @@ -144,26 +160,44 @@ static struct usb_serial_driver cp210x_device = { .tiocmget = cp210x_tiocmget, .tiocmset = cp210x_tiocmset, .attach = cp210x_startup, - .shutdown = cp210x_shutdown, + .dtr_rts = cp210x_dtr_rts, + .carrier_raised = cp210x_carrier_raised }; -/* Config SET requests. To GET, add 1 to the request number */ -#define CP2101_UART 0x00 /* Enable / Disable */ -#define CP2101_BAUDRATE 0x01 /* (BAUD_RATE_GEN_FREQ / baudrate) */ -#define CP2101_BITS 0x03 /* 0x(0)(databits)(parity)(stopbits) */ -#define CP2101_BREAK 0x05 /* On / Off */ -#define CP2101_CONTROL 0x07 /* Flow control line states */ -#define CP2101_MODEMCTL 0x13 /* Modem controls */ -#define CP2101_CONFIG_6 0x19 /* 6 bytes of config data ??? */ - -/* CP2101_UART */ +/* 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 + +/* CP210X_IFC_ENABLE */ #define UART_ENABLE 0x0001 #define UART_DISABLE 0x0000 -/* CP2101_BAUDRATE */ +/* CP210X_(SET|GET)_BAUDDIV */ #define BAUD_RATE_GEN_FREQ 0x384000 -/* CP2101_BITS */ +/* CP210X_(SET|GET)_LINE_CTL */ #define BITS_DATA_MASK 0X0f00 #define BITS_DATA_5 0X0500 #define BITS_DATA_6 0X0600 @@ -183,11 +217,11 @@ static struct usb_serial_driver cp210x_device = { #define BITS_STOP_1_5 0x0001 #define BITS_STOP_2 0x0002 -/* CP2101_BREAK */ +/* CP210X_SET_BREAK */ #define BREAK_ON 0x0000 #define BREAK_OFF 0x0001 -/* CP2101_CONTROL */ +/* CP210X_(SET_MHS|GET_MDMSTS) */ #define CONTROL_DTR 0x0001 #define CONTROL_RTS 0x0002 #define CONTROL_CTS 0x0010 @@ -359,7 +393,7 @@ static int cp210x_ctlmsg(struct usb_serial_port *port, u8 request, static int cp210x_reset(struct usb_serial_port *port) { - dbg("%s", __FUNCTION__); + dbg("%s", __func__); /* Instructing the CP210X to reset seems to work more reliably than * calling usb_reset_device(). @@ -388,7 +422,7 @@ static int cp210x_get_partnum(struct usb_serial_port *port) _partnum = CP210x_PART_UNKNOWN; } } - dbg("%s - partnum %u", __FUNCTION__, _partnum); + dbg("%s - partnum %u", __func__, _partnum); return _partnum; } @@ -410,14 +444,14 @@ static int cp210x_setstr(struct usb_serial_port *port, int cmd, __le16 *usbstr) int len = ((u8 *)usbstr)[0]; int ret = cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, 0x3700 | (cmd & 0xff), 0, usbstr, len); - dbg("%s - cmd 0x%02x len %d ret %d", __FUNCTION__, cmd, len, ret); + dbg("%s - cmd 0x%02x len %d ret %d", __func__, cmd, len, ret); return ret; } /* Set all gpio simultaneously */ static int cp210x_gpioset(struct usb_serial_port *port, u8 gpio) { - dbg("%s - port %d, gpio = 0x%.2x", __FUNCTION__, port->number, gpio); + dbg("%s - port %d, gpio = 0x%.2x", __func__, port->number, gpio); return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, 0x37e1, ((uint16_t)gpio << 8) | GPIO_MASK, NULL, 0); @@ -446,7 +480,7 @@ static int cp210x_gpiosetb(struct usb_serial_port *port, u8 set, u8 clear) if (clear & GPIO_3) gpio = (gpio & ~(GPIO_3 << 8))|GPIO_3; - dbg("%s - port %d, gpiob = 0x%.4x", __FUNCTION__, port->number, gpio); + dbg("%s - port %d, gpiob = 0x%.4x", __func__, port->number, gpio); return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, 0x37e1, gpio, NULL, 0); @@ -456,12 +490,12 @@ static int cp210x_gpioget(struct usb_serial_port *port, u8 *gpio) { int ret; - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __func__, port->number); ret = cp210x_ctlmsg(port, 0xff, USB_DIR_IN|USB_TYPE_VENDOR, 0x00c2, 0, gpio, 1); - dbg("%s - gpio = 0x%.2x (%d)", __FUNCTION__, *gpio, ret); + dbg("%s - gpio = 0x%.2x (%d)", __func__, *gpio, ret); return (ret == 1) ? 0 : -1; } @@ -472,7 +506,7 @@ static int cp210x_portconfset(struct usb_serial_port *port, struct cp210x_port_config lconfig; int ret; - dbg("%s", __FUNCTION__); + dbg("%s", __func__); memcpy(&lconfig, config, sizeof(lconfig)); @@ -500,7 +534,7 @@ static int cp210x_portconfget(struct usb_serial_port *port, { int ret; - dbg("%s", __FUNCTION__); + dbg("%s", __func__); ret = cp210x_ctlmsg(port, 0xff, USB_DIR_IN|USB_TYPE_VENDOR, 0x370c, 0, config, sizeof(struct cp210x_port_config)); @@ -545,13 +579,10 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request, buf = kcalloc(length, sizeof(__le32), GFP_KERNEL); if (!buf) { - dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__); + dev_err(&port->dev, "%s - out of memory.\n", __func__); return -ENOMEM; } - /* For get requests, the request number must be incremented */ - request++; - /* Issue the request, attempting to read 'size' bytes */ result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), request, @@ -565,9 +596,9 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request, kfree(buf); if (result != size) { - dev_err(&port->dev, "%s - Unable to send config request, " + dbg("%s - Unable to send config request, " "request=0x%x size=%d result=%d\n", - __FUNCTION__, request, size, result); + __func__, request, size, result); return -EPROTO; } @@ -593,7 +624,7 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request, buf = kmalloc(length * sizeof(__le32), GFP_KERNEL); if (!buf) { dev_err(&port->dev, "%s - out of memory.\n", - __FUNCTION__); + __func__); return -ENOMEM; } @@ -616,9 +647,9 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request, kfree(buf); if ((size > 2 && result != size) || result < 0) { - dev_err(&port->dev, "%s - Unable to send request, " + dbg("%s - Unable to send request, " "request=0x%x size=%d result=%d\n", - __FUNCTION__, request, size, result); + __func__, request, size, result); return -EPROTO; } @@ -636,80 +667,92 @@ static inline int cp210x_set_config_single(struct usb_serial_port *port, return cp210x_set_config(port, request, &data, 2); } -static int cp210x_open(struct usb_serial_port *port, struct file *filp) +/* + * cp210x_quantise_baudrate + * Quantises the baud rate as per AN205 Table 1 + */ +static unsigned int cp210x_quantise_baudrate(unsigned int baud) { + if (baud <= 56) baud = 0; + else if (baud <= 300) baud = 300; + 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; + else if (baud <= 1053257) baud = 921600; + else if (baud <= 1474560) baud = 1228800; + else if (baud <= 2457600) baud = 1843200; + else baud = 3686400; + return baud; +} + +static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) { - struct usb_serial *serial = port->serial; int result; - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __func__, port->number); - if (cp210x_set_config_single(port, CP2101_UART, UART_ENABLE)) { + if (cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) { dev_err(&port->dev, "%s - Unable to enable UART\n", - __FUNCTION__); + __func__); return -EPROTO; } - /* Start reading from the device */ - usb_fill_bulk_urb(port->read_urb, serial->dev, - usb_rcvbulkpipe(serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - serial->type->read_bulk_callback, - port); - result = usb_submit_urb(port->read_urb, GFP_KERNEL); - if (result) { - dev_err(&port->dev, "%s - failed resubmitting read urb, " - "error %d\n", __FUNCTION__, result); + result = usb_serial_generic_open(tty, port); + if (result) return result; - } /* Configure the termios structure */ - cp210x_get_termios(port); - - /* Set the DTR and RTS pins low */ - cp210x_tiocmset(port, NULL, TIOCM_DTR | TIOCM_RTS, 0); - + cp210x_get_termios(tty, port); return 0; } -static void cp210x_cleanup(struct usb_serial_port *port) -{ - struct usb_serial *serial = port->serial; - - dbg("%s - port %d", __FUNCTION__, port->number); - - if (serial->dev) { - /* shutdown any bulk reads that might be going on */ - if (serial->num_bulk_out) - usb_kill_urb(port->write_urb); - if (serial->num_bulk_in) - usb_kill_urb(port->read_urb); - } -} - -static void cp210x_close(struct usb_serial_port *port, struct file *filp) +static void cp210x_close(struct usb_serial_port *port) { - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __func__, port->number); - /* shutdown our urbs */ - dbg("%s - shutting down urbs", __FUNCTION__); - usb_kill_urb(port->write_urb); - usb_kill_urb(port->read_urb); + usb_serial_generic_close(port); - cp210x_set_config_single(port, CP2101_UART, UART_DISABLE); + mutex_lock(&port->serial->disc_mutex); + if (!port->serial->disconnected) + cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE); + mutex_unlock(&port->serial->disc_mutex); } -static int cp210x_ioctl(struct usb_serial_port *port, struct file *file, +static int cp210x_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { - dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd); + struct usb_serial_port *port = tty->driver_data; + + dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd); switch (cmd) { case TIOCMGET: { - int result = cp210x_tiocmget(port, file); + int result = cp210x_tiocmget(tty, file); if (copy_to_user((int __user *)&arg, &result, sizeof(int))) return -EFAULT; return 0; @@ -726,7 +769,7 @@ static int cp210x_ioctl(struct usb_serial_port *port, struct file *file, return -EFAULT; /* this looks wrong: TIOCMSET isn't going to work right */ - if (cp210x_tiocmset(port, file, (cmd == TIOCMBIC) ? 0 : val, + if (cp210x_tiocmset(tty, file, (cmd == TIOCMBIC) ? 0 : val, (cmd == TIOCMBIC) ? val : 0)) return -EFAULT; return 0; @@ -845,7 +888,7 @@ static int cp210x_ioctl(struct usb_serial_port *port, struct file *file, break; default: - dbg("%s not supported = 0x%04x", __FUNCTION__, cmd); + dbg("%s not supported = 0x%04x", __func__, cmd); break; } @@ -858,301 +901,292 @@ static int cp210x_ioctl(struct usb_serial_port *port, struct file *file, * from the device, corrects any unsupported values, and configures the * termios structure to reflect the state of the device */ -static void cp210x_get_termios(struct usb_serial_port *port) +static void cp210x_get_termios(struct tty_struct *tty, + struct usb_serial_port *port) { - unsigned int cflag, modem_ctl[4]; - int baud; - int bits; + unsigned int baud; - dbg("%s - port %d", __FUNCTION__, port->number); + if (tty) { + cp210x_get_termios_port(tty->driver_data, + &tty->termios->c_cflag, &baud); + tty_encode_baud_rate(tty, baud, baud); + } - if (!port->tty || !port->tty->termios) { - dbg("%s - no tty structures", __FUNCTION__); - return; + else { + unsigned int cflag; + cflag = 0; + cp210x_get_termios_port(port, &cflag, &baud); } +} + +/* + * cp210x_get_termios_port + * This is the heart of cp210x_get_termios which always uses a &usb_serial_port. + */ +static void cp210x_get_termios_port(struct usb_serial_port *port, + unsigned int *cflagp, unsigned int *baudp) +{ + unsigned int cflag, modem_ctl[4]; + unsigned int baud; + unsigned int bits; + + dbg("%s - port %d", __func__, port->number); - cp210x_get_config(port, CP2101_BAUDRATE, &baud, 2); + cp210x_get_config(port, CP210X_GET_BAUDDIV, &baud, 2); /* Convert to baudrate */ if (baud) - baud = BAUD_RATE_GEN_FREQ / baud; + baud = cp210x_quantise_baudrate((BAUD_RATE_GEN_FREQ + baud/2)/ baud); - dbg("%s - baud rate = %d", __FUNCTION__, baud); + dbg("%s - baud rate = %d", __func__, baud); + *baudp = baud; - tty_encode_baud_rate(port->tty, baud, baud); - cflag = port->tty->termios->c_cflag; + cflag = *cflagp; - cp210x_get_config(port, CP2101_BITS, &bits, 2); + cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); cflag &= ~CSIZE; - switch(bits & BITS_DATA_MASK) { - case BITS_DATA_5: - dbg("%s - data bits = 5", __FUNCTION__); - cflag |= CS5; - break; - case BITS_DATA_6: - dbg("%s - data bits = 6", __FUNCTION__); - cflag |= CS6; - break; - case BITS_DATA_7: - dbg("%s - data bits = 7", __FUNCTION__); - cflag |= CS7; - break; - case BITS_DATA_8: - dbg("%s - data bits = 8", __FUNCTION__); - cflag |= CS8; - break; - case BITS_DATA_9: - dbg("%s - data bits = 9 (not supported, " - "using 8 data bits)", __FUNCTION__); - cflag |= CS8; - bits &= ~BITS_DATA_MASK; - bits |= BITS_DATA_8; - cp210x_set_config(port, CP2101_BITS, &bits, 2); - break; - default: - dbg("%s - Unknown number of data bits, " - "using 8", __FUNCTION__); - cflag |= CS8; - bits &= ~BITS_DATA_MASK; - bits |= BITS_DATA_8; - cp210x_set_config(port, CP2101_BITS, &bits, 2); - break; + switch (bits & BITS_DATA_MASK) { + case BITS_DATA_5: + dbg("%s - data bits = 5", __func__); + cflag |= CS5; + break; + case BITS_DATA_6: + dbg("%s - data bits = 6", __func__); + cflag |= CS6; + break; + case BITS_DATA_7: + dbg("%s - data bits = 7", __func__); + cflag |= CS7; + break; + case BITS_DATA_8: + dbg("%s - data bits = 8", __func__); + cflag |= CS8; + break; + case BITS_DATA_9: + dbg("%s - data bits = 9 (not supported, using 8 data bits)", + __func__); + cflag |= CS8; + bits &= ~BITS_DATA_MASK; + bits |= BITS_DATA_8; + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + break; + default: + dbg("%s - Unknown number of data bits, using 8", __func__); + cflag |= CS8; + bits &= ~BITS_DATA_MASK; + bits |= BITS_DATA_8; + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + break; } - switch(bits & BITS_PARITY_MASK) { - case BITS_PARITY_NONE: - dbg("%s - parity = NONE", __FUNCTION__); - cflag &= ~PARENB; - break; - case BITS_PARITY_ODD: - dbg("%s - parity = ODD", __FUNCTION__); - cflag |= (PARENB|PARODD); - break; - case BITS_PARITY_EVEN: - dbg("%s - parity = EVEN", __FUNCTION__); - cflag &= ~PARODD; - cflag |= PARENB; - break; - case BITS_PARITY_MARK: - dbg("%s - parity = MARK (not supported, " - "disabling parity)", __FUNCTION__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_set_config(port, CP2101_BITS, &bits, 2); - break; - case BITS_PARITY_SPACE: - dbg("%s - parity = SPACE (not supported, " - "disabling parity)", __FUNCTION__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_set_config(port, CP2101_BITS, &bits, 2); - break; - default: - dbg("%s - Unknown parity mode, " - "disabling parity", __FUNCTION__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_set_config(port, CP2101_BITS, &bits, 2); - break; + switch (bits & BITS_PARITY_MASK) { + case BITS_PARITY_NONE: + dbg("%s - parity = NONE", __func__); + cflag &= ~PARENB; + break; + case BITS_PARITY_ODD: + dbg("%s - parity = ODD", __func__); + cflag |= (PARENB|PARODD); + break; + case BITS_PARITY_EVEN: + dbg("%s - parity = EVEN", __func__); + cflag &= ~PARODD; + cflag |= PARENB; + break; + case BITS_PARITY_MARK: + dbg("%s - parity = MARK (not supported, disabling parity)", + __func__); + cflag &= ~PARENB; + bits &= ~BITS_PARITY_MASK; + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + break; + case BITS_PARITY_SPACE: + dbg("%s - parity = SPACE (not supported, disabling parity)", + __func__); + cflag &= ~PARENB; + bits &= ~BITS_PARITY_MASK; + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + break; + default: + dbg("%s - Unknown parity mode, disabling parity", __func__); + cflag &= ~PARENB; + bits &= ~BITS_PARITY_MASK; + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + break; } cflag &= ~CSTOPB; - switch(bits & BITS_STOP_MASK) { - case BITS_STOP_1: - dbg("%s - stop bits = 1", __FUNCTION__); - break; - case BITS_STOP_1_5: - dbg("%s - stop bits = 1.5 (not supported, " - "using 1 stop bit)", __FUNCTION__); - bits &= ~BITS_STOP_MASK; - cp210x_set_config(port, CP2101_BITS, &bits, 2); - break; - case BITS_STOP_2: - dbg("%s - stop bits = 2", __FUNCTION__); - cflag |= CSTOPB; - break; - default: - dbg("%s - Unknown number of stop bits, " - "using 1 stop bit", __FUNCTION__); - bits &= ~BITS_STOP_MASK; - cp210x_set_config(port, CP2101_BITS, &bits, 2); - break; + switch (bits & BITS_STOP_MASK) { + case BITS_STOP_1: + dbg("%s - stop bits = 1", __func__); + break; + case BITS_STOP_1_5: + dbg("%s - stop bits = 1.5 (not supported, using 1 stop bit)", + __func__); + bits &= ~BITS_STOP_MASK; + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + break; + case BITS_STOP_2: + dbg("%s - stop bits = 2", __func__); + cflag |= CSTOPB; + break; + default: + dbg("%s - Unknown number of stop bits, using 1 stop bit", + __func__); + bits &= ~BITS_STOP_MASK; + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + break; } - cp210x_get_config(port, CP2101_MODEMCTL, modem_ctl, 16); + cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); if (modem_ctl[0] & 0x0008) { - dbg("%s - flow control = CRTSCTS", __FUNCTION__); + dbg("%s - flow control = CRTSCTS", __func__); cflag |= CRTSCTS; } else { - dbg("%s - flow control = NONE", __FUNCTION__); + dbg("%s - flow control = NONE", __func__); cflag &= ~CRTSCTS; } - port->tty->termios->c_cflag = cflag; + *cflagp = cflag; } -static void cp210x_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void cp210x_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { unsigned int cflag, old_cflag; - int baud = 0, bits; + unsigned int baud = 0, bits; unsigned int modem_ctl[4]; - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __func__, port->number); - if (!port->tty || !port->tty->termios) { - dbg("%s - no tty structures", __FUNCTION__); + if (!tty) return; - } - port->tty->termios->c_cflag &= ~CMSPAR; - cflag = port->tty->termios->c_cflag; + tty->termios->c_cflag &= ~CMSPAR; + cflag = tty->termios->c_cflag; old_cflag = old_termios->c_cflag; - baud = tty_get_baud_rate(port->tty); + baud = cp210x_quantise_baudrate(tty_get_baud_rate(tty)); /* If the baud rate is to be updated*/ - if (baud != tty_termios_baud_rate(old_termios)) { - switch (baud) { - case 0: - case 600: - case 1200: - case 1800: - case 2400: - case 4800: - case 7200: - case 9600: - case 14400: - case 19200: - case 28800: - case 38400: - case 55854: - case 57600: - case 115200: - case 127117: - case 230400: - case 460800: - case 921600: - case 3686400: - break; - default: - baud = 9600; - break; - } - - if (baud) { - dbg("%s - Setting baud rate to %d baud", __FUNCTION__, - baud); - if (cp210x_set_config_single(port, CP2101_BAUDRATE, - (BAUD_RATE_GEN_FREQ / baud))) { - dev_err(&port->dev, "Baud rate requested not " - "supported by device\n"); - baud = tty_termios_baud_rate(old_termios); - } + if (baud != tty_termios_baud_rate(old_termios) && baud != 0) { + dbg("%s - Setting baud rate to %d baud", __func__, + baud); + if (cp210x_set_config_single(port, CP210X_SET_BAUDDIV, + ((BAUD_RATE_GEN_FREQ + baud/2) / baud))) { + dbg("Baud rate requested not supported by device"); + baud = tty_termios_baud_rate(old_termios); } } /* Report back the resulting baud rate */ - tty_encode_baud_rate(port->tty, baud, baud); + tty_encode_baud_rate(tty, baud, baud); /* If the number of data bits is to be updated */ if ((cflag & CSIZE) != (old_cflag & CSIZE)) { - cp210x_get_config(port, CP2101_BITS, &bits, 2); + cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); bits &= ~BITS_DATA_MASK; switch (cflag & CSIZE) { - case CS5: - bits |= BITS_DATA_5; - dbg("%s - data bits = 5", __FUNCTION__); - break; - case CS6: - bits |= BITS_DATA_6; - dbg("%s - data bits = 6", __FUNCTION__); - break; - case CS7: - bits |= BITS_DATA_7; - dbg("%s - data bits = 7", __FUNCTION__); - break; - case CS8: - bits |= BITS_DATA_8; - dbg("%s - data bits = 8", __FUNCTION__); - break; - /*case CS9: - bits |= BITS_DATA_9; - dbg("%s - data bits = 9", __FUNCTION__); - break;*/ - default: - dev_err(&port->dev, "cp210x driver does not " + case CS5: + bits |= BITS_DATA_5; + dbg("%s - data bits = 5", __func__); + break; + case CS6: + bits |= BITS_DATA_6; + dbg("%s - data bits = 6", __func__); + break; + case CS7: + bits |= BITS_DATA_7; + dbg("%s - data bits = 7", __func__); + break; + case CS8: + bits |= BITS_DATA_8; + dbg("%s - data bits = 8", __func__); + break; + /*case CS9: + bits |= BITS_DATA_9; + dbg("%s - data bits = 9", __func__); + break;*/ + default: + dbg("cp210x driver does not " "support the number of bits requested," " using 8 bit mode\n"); bits |= BITS_DATA_8; break; } - if (cp210x_set_config(port, CP2101_BITS, &bits, 2)) - dev_err(&port->dev, "Number of data bits requested " + if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) + dbg("Number of data bits requested " "not supported by device\n"); } if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) { - cp210x_get_config(port, CP2101_BITS, &bits, 2); + cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); bits &= ~BITS_PARITY_MASK; if (cflag & PARENB) { if (cflag & PARODD) { bits |= BITS_PARITY_ODD; - dbg("%s - parity = ODD", __FUNCTION__); + dbg("%s - parity = ODD", __func__); } else { bits |= BITS_PARITY_EVEN; - dbg("%s - parity = EVEN", __FUNCTION__); + dbg("%s - parity = EVEN", __func__); } } - if (cp210x_set_config(port, CP2101_BITS, &bits, 2)) - dev_err(&port->dev, "Parity mode not supported " + if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) + dbg("Parity mode not supported " "by device\n"); } if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) { - cp210x_get_config(port, CP2101_BITS, &bits, 2); + cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); bits &= ~BITS_STOP_MASK; if (cflag & CSTOPB) { bits |= BITS_STOP_2; - dbg("%s - stop bits = 2", __FUNCTION__); + dbg("%s - stop bits = 2", __func__); } else { bits |= BITS_STOP_1; - dbg("%s - stop bits = 1", __FUNCTION__); + dbg("%s - stop bits = 1", __func__); } - if (cp210x_set_config(port, CP2101_BITS, &bits, 2)) - dev_err(&port->dev, "Number of stop bits requested " + if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) + dbg("Number of stop bits requested " "not supported by device\n"); } if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) { - cp210x_get_config(port, CP2101_MODEMCTL, modem_ctl, 16); + cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", - __FUNCTION__, modem_ctl[0], modem_ctl[1], + __func__, modem_ctl[0], modem_ctl[1], modem_ctl[2], modem_ctl[3]); if (cflag & CRTSCTS) { modem_ctl[0] &= ~0x7B; modem_ctl[0] |= 0x09; modem_ctl[1] = 0x80; - dbg("%s - flow control = CRTSCTS", __FUNCTION__); + dbg("%s - flow control = CRTSCTS", __func__); } else { modem_ctl[0] &= ~0x7B; modem_ctl[0] |= 0x01; modem_ctl[1] |= 0x40; - dbg("%s - flow control = NONE", __FUNCTION__); + dbg("%s - flow control = NONE", __func__); } dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", - __FUNCTION__, modem_ctl[0], modem_ctl[1], + __func__, modem_ctl[0], modem_ctl[1], modem_ctl[2], modem_ctl[3]); - cp210x_set_config(port, CP2101_MODEMCTL, modem_ctl, 16); + cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16); } } -static int cp210x_tiocmset(struct usb_serial_port *port, struct file *file, +static int cp210x_tiocmset (struct tty_struct *tty, struct file *file, + unsigned int set, unsigned int clear) +{ + struct usb_serial_port *port = tty->driver_data; + return cp210x_tiocmset_port(port, file, set, clear); +} + +static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear) { - int control = 0; + unsigned int control = 0; - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __func__, port->number); if (set & TIOCM_RTS) { control |= CONTROL_RTS; @@ -1171,19 +1205,28 @@ static int cp210x_tiocmset(struct usb_serial_port *port, struct file *file, control |= CONTROL_WRITE_DTR; } - dbg("%s - control = 0x%.4x", __FUNCTION__, control); + dbg("%s - control = 0x%.4x", __func__, control); - return cp210x_set_config(port, CP2101_CONTROL, &control, 2); + return cp210x_set_config(port, CP210X_SET_MHS, &control, 2); +} +static void cp210x_dtr_rts(struct usb_serial_port *p, int on) +{ + if (on) + cp210x_tiocmset_port(p, NULL, TIOCM_DTR|TIOCM_RTS, 0); + else + cp210x_tiocmset_port(p, NULL, 0, TIOCM_DTR|TIOCM_RTS); } -static int cp210x_tiocmget(struct usb_serial_port *port, struct file *file) +static int cp210x_tiocmget (struct tty_struct *tty, struct file *file) { - int control, result; + struct usb_serial_port *port = tty->driver_data; + unsigned int control; + int result; - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __func__, port->number); - cp210x_get_config(port, CP2101_CONTROL, &control, 1); + cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1); result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0) |((control & CONTROL_RTS) ? TIOCM_RTS : 0) @@ -1192,44 +1235,42 @@ static int cp210x_tiocmget(struct usb_serial_port *port, struct file *file) |((control & CONTROL_RING)? TIOCM_RI : 0) |((control & CONTROL_DCD) ? TIOCM_CD : 0); - dbg("%s - control = 0x%.2x", __FUNCTION__, control); + dbg("%s - control = 0x%.2x", __func__, control); return result; } -static void cp210x_break_ctl(struct usb_serial_port *port, int break_state) +static int cp210x_carrier_raised(struct usb_serial_port *p) +{ + unsigned int control; + cp210x_get_config(p, CP210X_GET_MDMSTS, &control, 1); + if (control & CONTROL_DCD) + return 1; + return 0; +} + +static void cp210x_break_ctl (struct tty_struct *tty, int break_state) { - int state; + struct usb_serial_port *port = tty->driver_data; + unsigned int state; - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __func__, port->number); if (break_state == 0) state = BREAK_OFF; else state = BREAK_ON; - dbg("%s - turning break %s", __FUNCTION__, - state==BREAK_OFF ? "off" : "on"); - cp210x_set_config(port, CP2101_BREAK, &state, 2); + dbg("%s - turning break %s", __func__, + state == BREAK_OFF ? "off" : "on"); + cp210x_set_config(port, CP210X_SET_BREAK, &state, 2); } static int cp210x_startup(struct usb_serial *serial) { - /* CP2101 buffers behave strangely unless device is reset */ + /* cp210x buffers behave strangely unless device is reset */ usb_reset_device(serial->dev); return 0; } -static void cp210x_shutdown(struct usb_serial *serial) -{ - int i; - - dbg("%s", __FUNCTION__); - - /* Stop reads and writes on all ports */ - for (i = 0; i < serial->num_ports; ++i) { - cp210x_cleanup(serial->port[i]); - } -} - static int __init cp210x_init(void) { int retval; @@ -1246,7 +1287,8 @@ static int __init cp210x_init(void) } /* Success */ - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; } diff --git a/src/cp210x.c.hardy b/src/cp210x.c.hardy new file mode 100644 index 0000000..feab925 --- /dev/null +++ b/src/cp210x.c.hardy @@ -0,0 +1,1267 @@ +/* + * 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 + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "cp210x.h" + +/* + * Version Information + */ +#define DRIVER_VERSION "vxxDEBVERxx" +#define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver" + +/* + * Function Prototypes + */ +static int cp210x_open(struct usb_serial_port*, struct file*); +static void cp210x_cleanup(struct usb_serial_port*); +static void cp210x_close(struct usb_serial_port*, struct file*); +static void cp210x_get_termios(struct usb_serial_port*); +static void cp210x_set_termios(struct usb_serial_port*, struct ktermios*); +static int cp210x_tiocmget(struct usb_serial_port *, struct file *); +static int cp210x_tiocmset(struct usb_serial_port *, struct file *, + unsigned int, unsigned int); +static void cp210x_break_ctl(struct usb_serial_port*, int); +static int cp210x_startup(struct usb_serial *); +static void cp210x_shutdown(struct usb_serial*); +static int cp210x_ioctl(struct usb_serial_port *, struct file *, + unsigned int, unsigned long); + +static int debug; + +static const struct usb_device_id id_table[] = { + { USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */ + { USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */ + { USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */ + { 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(0x0FCF, 0x1003) }, /* Dynastream ANT development board */ + { USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */ + { USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */ + { USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */ + { USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */ + { USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */ + { USB_DEVICE(0x10C4, 0x0F91) }, /* Vstabi */ + { USB_DEVICE(0x10C4, 0x1101) }, /* Arkham Technology DS101 Bus Monitor */ + { USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */ + { USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */ + { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */ + { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */ + { USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */ + { USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */ + { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */ + { USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */ + { USB_DEVICE(0x10C4, 0x80DD) }, /* Tracient RFID */ + { USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */ + { USB_DEVICE(0x10C4, 0x8115) }, /* Arygon NFC/Mifare Reader */ + { USB_DEVICE(0x10C4, 0x813D) }, /* Burnside Telecom Deskmobile */ + { 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(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ + { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ + { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ + { USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */ + { USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */ + { USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */ + { USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */ + { USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */ + { USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */ + { 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 demostration module */ + { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesys ETRX2USB */ + { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */ + { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */ + { USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */ + { USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */ + { USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */ + { USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */ + { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */ + { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */ + { 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(0x13AD, 0x9999) }, /* Baltech card reader */ + { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */ + { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ + { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */ + { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ + { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */ + { } /* Terminating Entry */ +}; + +MODULE_DEVICE_TABLE(usb, id_table); + +static struct usb_driver cp210x_driver = { + .name = "cp210x", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table, + .no_dynamic_id = 1, +}; + +static struct usb_serial_driver cp210x_device = { + .driver = { + .owner = THIS_MODULE, + .name = "cp210x", + }, + .usb_driver = &cp210x_driver, + .id_table = id_table, + .num_interrupt_in = 0, + .num_bulk_in = NUM_DONT_CARE, + .num_bulk_out = NUM_DONT_CARE, + .num_ports = 1, + .open = cp210x_open, + .close = cp210x_close, + .ioctl = cp210x_ioctl, + .break_ctl = cp210x_break_ctl, + .set_termios = cp210x_set_termios, + .tiocmget = cp210x_tiocmget, + .tiocmset = cp210x_tiocmset, + .attach = cp210x_startup, + .shutdown = cp210x_shutdown, +}; + +/* Config SET requests. To GET, add 1 to the request number */ +#define CP2101_UART 0x00 /* Enable / Disable */ +#define CP2101_BAUDRATE 0x01 /* (BAUD_RATE_GEN_FREQ / baudrate) */ +#define CP2101_BITS 0x03 /* 0x(0)(databits)(parity)(stopbits) */ +#define CP2101_BREAK 0x05 /* On / Off */ +#define CP2101_CONTROL 0x07 /* Flow control line states */ +#define CP2101_MODEMCTL 0x13 /* Modem controls */ +#define CP2101_CONFIG_6 0x19 /* 6 bytes of config data ??? */ + +/* CP2101_UART */ +#define UART_ENABLE 0x0001 +#define UART_DISABLE 0x0000 + +/* CP2101_BAUDRATE */ +#define BAUD_RATE_GEN_FREQ 0x384000 + +/* CP2101_BITS */ +#define BITS_DATA_MASK 0X0f00 +#define BITS_DATA_5 0X0500 +#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 + +/* CP2101_BREAK */ +#define BREAK_ON 0x0000 +#define BREAK_OFF 0x0001 + +/* CP2101_CONTROL */ +#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 + +/* cp210x_get_partnum() return codes */ +#define CP210x_PART_UNKNOWN 0x00 +#define CP210x_PART_CP2101 0x01 +#define CP210x_PART_CP2102 0x02 +#define CP210x_PART_CP2103 0x03 + +/* Taken from drivers/usb/gadget/usbstring.c */ +static int utf8_to_utf16le(const char *s, __le16 *cp, unsigned len) +{ + int count = 0; + u8 c; + u16 uchar; + + /* this insists on correct encodings, though not minimal ones. + * BUT it currently rejects legit 4-byte UTF-8 code points, + * which need surrogate pairs. (Unicode 3.1 can use them.) + */ + while (len != 0 && (c = (u8) *s++) != 0) { + if (unlikely(c & 0x80)) { + // 2-byte sequence: + // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx + if ((c & 0xe0) == 0xc0) { + uchar = (c & 0x1f) << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0x80) + goto fail; + c &= 0x3f; + uchar |= c; + + // 3-byte sequence (most CJKV characters): + // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx + } else if ((c & 0xf0) == 0xe0) { + uchar = (c & 0x0f) << 12; + + c = (u8) *s++; + if ((c & 0xc0) != 0x80) + goto fail; + c &= 0x3f; + uchar |= c << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0x80) + goto fail; + c &= 0x3f; + uchar |= c; + + /* no bogus surrogates */ + if (0xd800 <= uchar && uchar <= 0xdfff) + goto fail; + + // 4-byte sequence (surrogate pairs, currently rare): + // 11101110wwwwzzzzyy + 110111yyyyxxxxxx + // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx + // (uuuuu = wwww + 1) + // FIXME accept the surrogate code points (only) + + } else + goto fail; + } else + uchar = c; + *cp++ = uchar; + count++; + len--; + } + return count; +fail: + return -1; +} + + +/* + * make_usb_string + * Populates usbstr with: (len) + (USB_DT_STRING) + unicode(str). Each char in + * usbstr consumes two bytes in unicode (__le16) format. + * Returns the resulting length of usbstr in bytes. + * This function can accept overlapping usbstr and str as long as the overlap + * does not cause data written to usbstr to overwrite data not yet read from + * str. + */ +static int make_usb_string(__le16* usbstr, size_t usblen, const char *src, + size_t srclen) +{ + int len; + + /* string descriptors have length, type, then UTF16-LE text */ + if (usblen > 254) + usblen = 254; + len = min(usblen / 2 - 1, srclen); + len = utf8_to_utf16le(src, usbstr + 1, len); + if (len >= 0) { + len = (len + 1) * 2; + ((u8 *)usbstr)[0] = len; + ((u8 *)usbstr)[1] = USB_DT_STRING; + } + return len; +} + +/* + * cp210x_usbstr_from_user + * Populate kbuf with a usb string derived from a user space variable. klen + * is the size of the buffer at kbuf. + * Returns the number of bytes used in kbuf. + */ +static size_t cp210x_usbstr_from_user(__le16 *kbuf, + struct cp210x_buffer __user *ubuf, size_t klen) +{ + struct cp210x_buffer t; + char *str; + size_t slen; + + if (copy_from_user(&t, ubuf, sizeof(t))) + return -EINVAL; + slen = klen / 2 - 1; + if (!t.buf || !t.len || t.len > slen) + return -EINVAL; + if (t.len < slen) + slen = t.len; + str = (char *)kbuf + klen - slen; + if (copy_from_user(str, (__u8 __user *)t.buf, slen)) + return -EINVAL; + return make_usb_string(kbuf, klen, str, slen); +} + +/* + * cp210x_ctlmsg + * A generic usb control message interface. + * Returns the actual size of the data read or written within the message, 0 + * if no data were read or written, or a negative value to indicate an error. + */ +static int cp210x_ctlmsg(struct usb_serial_port *port, u8 request, + u8 requestype, u16 value, u16 index, void *data, u16 size) +{ + struct usb_device *dev = port->serial->dev; + u8 *tbuf; + int ret; + + tbuf = kmalloc(size, GFP_KERNEL); + if (!tbuf) + return -ENOMEM; + if (requestype & USB_DIR_IN) { + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, + requestype, value, index, tbuf, size, 300); + if (ret > 0 && size) + memcpy(data, tbuf, size); + } else { + if (size) + memcpy(tbuf, data, size); + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, + requestype, value, index, tbuf, size, 300); + } + kfree(tbuf); + if (ret < 0 && ret != -EPIPE) { + dev_printk(KERN_DEBUG, &dev->dev, + "cp210x: ctl failed cmd rqt %u rq %u len %u ret %d\n", + requestype, request, size, ret); + } + return ret; +} + +static int cp210x_reset(struct usb_serial_port *port) +{ + dbg("%s", __FUNCTION__); + + /* Instructing the CP210X to reset seems to work more reliably than + * calling usb_reset_device(). + */ + cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, + 0x0008, 0x00, NULL, 0); + return 0; +} + +static int cp210x_get_partnum(struct usb_serial_port *port) +{ + static u8 _partnum = CP210x_PART_UNKNOWN; + + if (_partnum == CP210x_PART_UNKNOWN) { + u8 addr = port->serial->dev->actconfig->interface[0]-> + cur_altsetting->endpoint[0].desc.bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK; + + if (addr == 0x03 || addr == 0x02) + _partnum = CP210x_PART_CP2101; + else if (addr == 0x01) { + /* Must query part to determine part number */ + if (cp210x_ctlmsg(port, 0xff, + USB_DIR_IN|USB_TYPE_VENDOR, + 0x370b, 0x00, &_partnum, 1) != 1) + _partnum = CP210x_PART_UNKNOWN; + } + } + dbg("%s - partnum %u", __FUNCTION__, _partnum); + return _partnum; +} + +static inline int cp210x_setu16(struct usb_serial_port *port, int cmd, + unsigned int value) +{ + return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, + 0x3700 | (cmd & 0xff), value, NULL, 0); +} + +/* + * cp210x_setstr + * + * Set a USB string descriptor using proprietary cp210x control messages. + * Return the number of characters actually written. + */ +static int cp210x_setstr(struct usb_serial_port *port, int cmd, __le16 *usbstr) +{ + int len = ((u8 *)usbstr)[0]; + int ret = cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, + 0x3700 | (cmd & 0xff), 0, usbstr, len); + dbg("%s - cmd 0x%02x len %d ret %d", __FUNCTION__, cmd, len, ret); + return ret; +} + +/* Set all gpio simultaneously */ +static int cp210x_gpioset(struct usb_serial_port *port, u8 gpio) +{ + dbg("%s - port %d, gpio = 0x%.2x", __FUNCTION__, port->number, gpio); + + return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, + 0x37e1, ((uint16_t)gpio << 8) | GPIO_MASK, NULL, 0); +} + +/* Set select gpio bits */ +static int cp210x_gpiosetb(struct usb_serial_port *port, u8 set, u8 clear) +{ + u16 gpio = 0; + + /* The bitmask is in the LSB, the values in the MSB */ + if (set & GPIO_0) + gpio |= (GPIO_0 << 8)|GPIO_0; + if (set & GPIO_1) + gpio |= (GPIO_1 << 8)|GPIO_1; + if (set & GPIO_2) + gpio |= (GPIO_2 << 8)|GPIO_2; + if (set & GPIO_3) + gpio |= (GPIO_3 << 8)|GPIO_3; + if (clear & GPIO_0) + gpio = (gpio & ~(GPIO_0 << 8))|GPIO_0; + if (clear & GPIO_1) + gpio = (gpio & ~(GPIO_1 << 8))|GPIO_1; + if (clear & GPIO_2) + gpio = (gpio & ~(GPIO_2 << 8))|GPIO_2; + if (clear & GPIO_3) + gpio = (gpio & ~(GPIO_3 << 8))|GPIO_3; + + dbg("%s - port %d, gpiob = 0x%.4x", __FUNCTION__, port->number, gpio); + + return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, + 0x37e1, gpio, NULL, 0); +} + +static int cp210x_gpioget(struct usb_serial_port *port, u8 *gpio) +{ + int ret; + + dbg("%s - port %d", __FUNCTION__, port->number); + + ret = cp210x_ctlmsg(port, 0xff, USB_DIR_IN|USB_TYPE_VENDOR, + 0x00c2, 0, gpio, 1); + + dbg("%s - gpio = 0x%.2x (%d)", __FUNCTION__, *gpio, ret); + + return (ret == 1) ? 0 : -1; +} + +static int cp210x_portconfset(struct usb_serial_port *port, + struct cp210x_port_config *config) +{ + struct cp210x_port_config lconfig; + int ret; + + dbg("%s", __FUNCTION__); + + memcpy(&lconfig, config, sizeof(lconfig)); + + /* Words from cp210x are MSB */ + lconfig.reset.mode = cpu_to_be16(config->reset.mode); + lconfig.reset.latch = cpu_to_be16(config->reset.latch); + lconfig.suspend.mode = cpu_to_be16(config->suspend.mode); + lconfig.suspend.latch = cpu_to_be16(config->suspend.latch); + /* apparently not implemented by CP210X firmware */ + lconfig.suspend.lowPower = 0; + lconfig.reset.lowPower = 0; + + ret = cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, 0x370c, + 0, &lconfig, sizeof(struct cp210x_port_config)); + if (ret == sizeof(struct cp210x_port_config)) + return 0; + else if (ret >= 0) + return -1; + else + return ret; +} + +static int cp210x_portconfget(struct usb_serial_port *port, + struct cp210x_port_config *config) +{ + int ret; + + dbg("%s", __FUNCTION__); + + ret = cp210x_ctlmsg(port, 0xff, USB_DIR_IN|USB_TYPE_VENDOR, + 0x370c, 0, config, sizeof(struct cp210x_port_config)); + if (ret == sizeof(struct cp210x_port_config)) { + /* Words from cp210x are MSB */ + config->reset.mode = be16_to_cpu(config->reset.mode); + config->reset.lowPower = be16_to_cpu(config->reset.lowPower); + config->reset.latch = be16_to_cpu(config->reset.latch); + config->suspend.mode = be16_to_cpu(config->suspend.mode); + config->suspend.lowPower = + be16_to_cpu(config->suspend.lowPower); + config->suspend.latch = be16_to_cpu(config->suspend.latch); + + /* apparently not implemented yet */ + config->reset.lowPower = 0; + config->suspend.lowPower = 0; + + return 0; + } else if (ret >= 0) + return -1; + else + return ret; + +} + +/* + * 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) + */ +static int cp210x_get_config(struct usb_serial_port *port, u8 request, + unsigned int *data, int size) +{ + struct usb_serial *serial = port->serial; + __le32 *buf; + int result, i, length; + + /* Number of integers required to contain the array */ + length = (((size - 1) | 3) + 1)/4; + + buf = kcalloc(length, sizeof(__le32), GFP_KERNEL); + if (!buf) { + dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__); + return -ENOMEM; + } + + /* For get requests, the request number must be incremented */ + request++; + + /* Issue the request, attempting to read 'size' bytes */ + result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + request, + USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_INTERFACE, + 0x0000, 0, buf, size, 300); + + /* Convert data into an array of integers */ + for (i = 0; i < length; i++) + data[i] = le32_to_cpu(buf[i]); + + kfree(buf); + + if (result != size) { + dev_err(&port->dev, "%s - Unable to send config request, " + "request=0x%x size=%d result=%d\n", + __FUNCTION__, request, size, result); + return -EPROTO; + } + + 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. + */ +static int cp210x_set_config(struct usb_serial_port *port, u8 request, + unsigned int *data, int size) +{ + struct usb_serial *serial = port->serial; + __le32 *buf; + int result, i, length; + + /* 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", + __FUNCTION__); + return -ENOMEM; + } + + /* Array of integers into bytes */ + for (i = 0; i < length; i++) + buf[i] = cpu_to_le32(data[i]); + + if (size > 2) { + result = usb_control_msg(serial->dev, + usb_sndctrlpipe(serial->dev, 0), request, + USB_TYPE_VENDOR|USB_RECIP_INTERFACE, 0x0000, + 0, buf, size, 300); + } else { + result = usb_control_msg(serial->dev, + usb_sndctrlpipe(serial->dev, 0), request, + USB_TYPE_VENDOR|USB_RECIP_INTERFACE, data[0], + 0, NULL, 0, 300); + } + + kfree(buf); + + if ((size > 2 && result != size) || result < 0) { + dev_err(&port->dev, "%s - Unable to send request, " + "request=0x%x size=%d result=%d\n", + __FUNCTION__, request, size, result); + return -EPROTO; + } + + return 0; +} + +/* + * cp210x_set_config_single + * Convenience function for calling cp210x_set_config on single data values + * without requiring an integer pointer + */ +static inline int cp210x_set_config_single(struct usb_serial_port *port, + u8 request, unsigned int data) +{ + return cp210x_set_config(port, request, &data, 2); +} + +static int cp210x_open(struct usb_serial_port *port, struct file *filp) +{ + struct usb_serial *serial = port->serial; + int result; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (cp210x_set_config_single(port, CP2101_UART, UART_ENABLE)) { + dev_err(&port->dev, "%s - Unable to enable UART\n", + __FUNCTION__); + return -EPROTO; + } + + /* Start reading from the device */ + usb_fill_bulk_urb(port->read_urb, serial->dev, + usb_rcvbulkpipe(serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + serial->type->read_bulk_callback, + port); + result = usb_submit_urb(port->read_urb, GFP_KERNEL); + if (result) { + dev_err(&port->dev, "%s - failed resubmitting read urb, " + "error %d\n", __FUNCTION__, result); + return result; + } + + /* Configure the termios structure */ + cp210x_get_termios(port); + + /* Set the DTR and RTS pins low */ + cp210x_tiocmset(port, NULL, TIOCM_DTR | TIOCM_RTS, 0); + + return 0; +} + +static void cp210x_cleanup(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (serial->dev) { + /* shutdown any bulk reads that might be going on */ + if (serial->num_bulk_out) + usb_kill_urb(port->write_urb); + if (serial->num_bulk_in) + usb_kill_urb(port->read_urb); + } +} + +static void cp210x_close(struct usb_serial_port *port, struct file *filp) +{ + dbg("%s - port %d", __FUNCTION__, port->number); + + /* shutdown our urbs */ + dbg("%s - shutting down urbs", __FUNCTION__); + usb_kill_urb(port->write_urb); + usb_kill_urb(port->read_urb); + + cp210x_set_config_single(port, CP2101_UART, UART_DISABLE); +} + +static int cp210x_ioctl(struct usb_serial_port *port, struct file *file, + unsigned int cmd, unsigned long arg) +{ + dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd); + + switch (cmd) { + + case TIOCMGET: + { + int result = cp210x_tiocmget(port, file); + if (copy_to_user((int __user *)&arg, &result, sizeof(int))) + return -EFAULT; + return 0; + } + break; + + case TIOCMSET: + case TIOCMBIS: + case TIOCMBIC: + { + int val = 0; + + if (copy_from_user(&val, (int __user *)&arg, sizeof(int))) + return -EFAULT; + + /* this looks wrong: TIOCMSET isn't going to work right */ + if (cp210x_tiocmset(port, file, (cmd == TIOCMBIC) ? 0 : val, + (cmd == TIOCMBIC) ? val : 0)) + return -EFAULT; + return 0; + } + break; + + case CP210x_IOCTL_GPIOGET: + if (cp210x_get_partnum(port) == CP210x_PART_CP2103) { + u8 gpio = 0; + if (!cp210x_gpioget(port, &gpio) && !copy_to_user( + (__u8 __user *)arg, &gpio, + sizeof(gpio))) + return 0; + } + return -EFAULT; + break; + + case CP210x_IOCTL_GPIOSET: + if (cp210x_get_partnum(port) == CP210x_PART_CP2103 && + !cp210x_gpioset(port, arg)) + return 0; + return -EFAULT; + break; + + case CP210x_IOCTL_GPIOBIC: + case CP210x_IOCTL_GPIOBIS: + if (cp210x_get_partnum(port) == CP210x_PART_CP2103 && + !cp210x_gpiosetb(port, + (cmd == CP210x_IOCTL_GPIOBIC) ? 0 : arg, + (cmd == CP210x_IOCTL_GPIOBIC) ? arg : 0)) + return 0; + return -EFAULT; + break; + + case CP210x_IOCTL_DEVICERESET: + return cp210x_reset(port); + break; + + case CP210x_IOCTL_PORTCONFGET: + { + struct cp210x_port_config config; + if (!cp210x_portconfget(port, &config) && !copy_to_user( + (struct cp210x_port_config __user *)arg, + &config, sizeof(config))) + return 0; + } + return -EFAULT; + break; + + case CP210x_IOCTL_PORTCONFSET: + { + struct cp210x_port_config config; + if (!copy_from_user(&config, (struct cp210x_port_config __user *)arg, + sizeof(config)) && + !cp210x_portconfset(port, &config)) + return 0; + return -EFAULT; + } + break; + + case CP210x_IOCTL_SETVID: + { + unsigned int vid; + if (!copy_from_user(&vid, (unsigned int __user *)arg, + sizeof(unsigned int)) && + !cp210x_setu16(port, 0x01, vid)) + return 0; + return -EFAULT; + } + break; + + case CP210x_IOCTL_SETPID: + { + unsigned int pid; + if (!copy_from_user(&pid, (unsigned int __user *)arg, + sizeof(unsigned int)) && + !cp210x_setu16(port, 0x02, pid)) + return 0; + return -EFAULT; + } + break; + + case CP210x_IOCTL_SETPRODUCT: + { + __le16 usbstr[CP210x_MAX_PRODUCT_STRLEN + 1]; + size_t len = cp210x_usbstr_from_user(usbstr, + (struct cp210x_buffer __user *)arg, + sizeof(usbstr)); + if (len > 0 && cp210x_setstr(port, 0x03, usbstr) == len) + return 0; + return -EFAULT; + } + break; + + case CP210x_IOCTL_SETSERIAL: + { + __le16 usbstr[CP210x_MAX_SERIAL_STRLEN + 1]; + size_t len = cp210x_usbstr_from_user(usbstr, + (struct cp210x_buffer __user *)arg, + sizeof(usbstr)); + if (len > 0 && cp210x_setstr(port, 0x04, usbstr) == len) + return 0; + return -EFAULT; + } + break; + + case CP210x_IOCTL_SETDEVVER: + { + unsigned int ver; + if (!copy_from_user(&ver, (unsigned int __user *)arg, + sizeof(unsigned int)) && + !cp210x_setu16(port, 0x07, ver)) + return 0; + return -EFAULT; + } + break; + + default: + dbg("%s not supported = 0x%04x", __FUNCTION__, cmd); + break; + } + + return -ENOIOCTLCMD; +} + +/* + * cp210x_get_termios + * 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 + */ +static void cp210x_get_termios(struct usb_serial_port *port) +{ + unsigned int cflag, modem_ctl[4]; + int baud; + int bits; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!port->tty || !port->tty->termios) { + dbg("%s - no tty structures", __FUNCTION__); + return; + } + + cp210x_get_config(port, CP2101_BAUDRATE, &baud, 2); + /* Convert to baudrate */ + if (baud) + baud = BAUD_RATE_GEN_FREQ / baud; + + dbg("%s - baud rate = %d", __FUNCTION__, baud); + + tty_encode_baud_rate(port->tty, baud, baud); + cflag = port->tty->termios->c_cflag; + + cp210x_get_config(port, CP2101_BITS, &bits, 2); + cflag &= ~CSIZE; + switch(bits & BITS_DATA_MASK) { + case BITS_DATA_5: + dbg("%s - data bits = 5", __FUNCTION__); + cflag |= CS5; + break; + case BITS_DATA_6: + dbg("%s - data bits = 6", __FUNCTION__); + cflag |= CS6; + break; + case BITS_DATA_7: + dbg("%s - data bits = 7", __FUNCTION__); + cflag |= CS7; + break; + case BITS_DATA_8: + dbg("%s - data bits = 8", __FUNCTION__); + cflag |= CS8; + break; + case BITS_DATA_9: + dbg("%s - data bits = 9 (not supported, " + "using 8 data bits)", __FUNCTION__); + cflag |= CS8; + bits &= ~BITS_DATA_MASK; + bits |= BITS_DATA_8; + cp210x_set_config(port, CP2101_BITS, &bits, 2); + break; + default: + dbg("%s - Unknown number of data bits, " + "using 8", __FUNCTION__); + cflag |= CS8; + bits &= ~BITS_DATA_MASK; + bits |= BITS_DATA_8; + cp210x_set_config(port, CP2101_BITS, &bits, 2); + break; + } + + switch(bits & BITS_PARITY_MASK) { + case BITS_PARITY_NONE: + dbg("%s - parity = NONE", __FUNCTION__); + cflag &= ~PARENB; + break; + case BITS_PARITY_ODD: + dbg("%s - parity = ODD", __FUNCTION__); + cflag |= (PARENB|PARODD); + break; + case BITS_PARITY_EVEN: + dbg("%s - parity = EVEN", __FUNCTION__); + cflag &= ~PARODD; + cflag |= PARENB; + break; + case BITS_PARITY_MARK: + dbg("%s - parity = MARK (not supported, " + "disabling parity)", __FUNCTION__); + cflag &= ~PARENB; + bits &= ~BITS_PARITY_MASK; + cp210x_set_config(port, CP2101_BITS, &bits, 2); + break; + case BITS_PARITY_SPACE: + dbg("%s - parity = SPACE (not supported, " + "disabling parity)", __FUNCTION__); + cflag &= ~PARENB; + bits &= ~BITS_PARITY_MASK; + cp210x_set_config(port, CP2101_BITS, &bits, 2); + break; + default: + dbg("%s - Unknown parity mode, " + "disabling parity", __FUNCTION__); + cflag &= ~PARENB; + bits &= ~BITS_PARITY_MASK; + cp210x_set_config(port, CP2101_BITS, &bits, 2); + break; + } + + cflag &= ~CSTOPB; + switch(bits & BITS_STOP_MASK) { + case BITS_STOP_1: + dbg("%s - stop bits = 1", __FUNCTION__); + break; + case BITS_STOP_1_5: + dbg("%s - stop bits = 1.5 (not supported, " + "using 1 stop bit)", __FUNCTION__); + bits &= ~BITS_STOP_MASK; + cp210x_set_config(port, CP2101_BITS, &bits, 2); + break; + case BITS_STOP_2: + dbg("%s - stop bits = 2", __FUNCTION__); + cflag |= CSTOPB; + break; + default: + dbg("%s - Unknown number of stop bits, " + "using 1 stop bit", __FUNCTION__); + bits &= ~BITS_STOP_MASK; + cp210x_set_config(port, CP2101_BITS, &bits, 2); + break; + } + + cp210x_get_config(port, CP2101_MODEMCTL, modem_ctl, 16); + if (modem_ctl[0] & 0x0008) { + dbg("%s - flow control = CRTSCTS", __FUNCTION__); + cflag |= CRTSCTS; + } else { + dbg("%s - flow control = NONE", __FUNCTION__); + cflag &= ~CRTSCTS; + } + + port->tty->termios->c_cflag = cflag; +} + +static void cp210x_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios) +{ + unsigned int cflag, old_cflag; + int baud = 0, bits; + unsigned int modem_ctl[4]; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!port->tty || !port->tty->termios) { + dbg("%s - no tty structures", __FUNCTION__); + return; + } + port->tty->termios->c_cflag &= ~CMSPAR; + + cflag = port->tty->termios->c_cflag; + old_cflag = old_termios->c_cflag; + baud = tty_get_baud_rate(port->tty); + + /* If the baud rate is to be updated*/ + if (baud != tty_termios_baud_rate(old_termios)) { + switch (baud) { + case 0: + case 600: + case 1200: + case 1800: + case 2400: + case 4800: + case 7200: + case 9600: + case 14400: + case 19200: + case 28800: + case 38400: + case 55854: + case 57600: + case 115200: + case 127117: + case 230400: + case 460800: + case 921600: + case 3686400: + break; + default: + baud = 9600; + break; + } + + if (baud) { + dbg("%s - Setting baud rate to %d baud", __FUNCTION__, + baud); + if (cp210x_set_config_single(port, CP2101_BAUDRATE, + (BAUD_RATE_GEN_FREQ / baud))) { + dev_err(&port->dev, "Baud rate requested not " + "supported by device\n"); + baud = tty_termios_baud_rate(old_termios); + } + } + } + /* Report back the resulting baud rate */ + tty_encode_baud_rate(port->tty, baud, baud); + + /* If the number of data bits is to be updated */ + if ((cflag & CSIZE) != (old_cflag & CSIZE)) { + cp210x_get_config(port, CP2101_BITS, &bits, 2); + bits &= ~BITS_DATA_MASK; + switch (cflag & CSIZE) { + case CS5: + bits |= BITS_DATA_5; + dbg("%s - data bits = 5", __FUNCTION__); + break; + case CS6: + bits |= BITS_DATA_6; + dbg("%s - data bits = 6", __FUNCTION__); + break; + case CS7: + bits |= BITS_DATA_7; + dbg("%s - data bits = 7", __FUNCTION__); + break; + case CS8: + bits |= BITS_DATA_8; + dbg("%s - data bits = 8", __FUNCTION__); + break; + /*case CS9: + bits |= BITS_DATA_9; + dbg("%s - data bits = 9", __FUNCTION__); + break;*/ + default: + dev_err(&port->dev, "cp210x driver does not " + "support the number of bits requested," + " using 8 bit mode\n"); + bits |= BITS_DATA_8; + break; + } + if (cp210x_set_config(port, CP2101_BITS, &bits, 2)) + dev_err(&port->dev, "Number of data bits requested " + "not supported by device\n"); + } + + if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) { + cp210x_get_config(port, CP2101_BITS, &bits, 2); + bits &= ~BITS_PARITY_MASK; + if (cflag & PARENB) { + if (cflag & PARODD) { + bits |= BITS_PARITY_ODD; + dbg("%s - parity = ODD", __FUNCTION__); + } else { + bits |= BITS_PARITY_EVEN; + dbg("%s - parity = EVEN", __FUNCTION__); + } + } + if (cp210x_set_config(port, CP2101_BITS, &bits, 2)) + dev_err(&port->dev, "Parity mode not supported " + "by device\n"); + } + + if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) { + cp210x_get_config(port, CP2101_BITS, &bits, 2); + bits &= ~BITS_STOP_MASK; + if (cflag & CSTOPB) { + bits |= BITS_STOP_2; + dbg("%s - stop bits = 2", __FUNCTION__); + } else { + bits |= BITS_STOP_1; + dbg("%s - stop bits = 1", __FUNCTION__); + } + if (cp210x_set_config(port, CP2101_BITS, &bits, 2)) + dev_err(&port->dev, "Number of stop bits requested " + "not supported by device\n"); + } + + if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) { + cp210x_get_config(port, CP2101_MODEMCTL, modem_ctl, 16); + dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", + __FUNCTION__, modem_ctl[0], modem_ctl[1], + modem_ctl[2], modem_ctl[3]); + + if (cflag & CRTSCTS) { + modem_ctl[0] &= ~0x7B; + modem_ctl[0] |= 0x09; + modem_ctl[1] = 0x80; + dbg("%s - flow control = CRTSCTS", __FUNCTION__); + } else { + modem_ctl[0] &= ~0x7B; + modem_ctl[0] |= 0x01; + modem_ctl[1] |= 0x40; + dbg("%s - flow control = NONE", __FUNCTION__); + } + + dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", + __FUNCTION__, modem_ctl[0], modem_ctl[1], + modem_ctl[2], modem_ctl[3]); + cp210x_set_config(port, CP2101_MODEMCTL, modem_ctl, 16); + } + +} + +static int cp210x_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear) +{ + int control = 0; + + dbg("%s - port %d", __FUNCTION__, port->number); + + 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; + } + + dbg("%s - control = 0x%.4x", __FUNCTION__, control); + + return cp210x_set_config(port, CP2101_CONTROL, &control, 2); + +} + +static int cp210x_tiocmget(struct usb_serial_port *port, struct file *file) +{ + int control, result; + + dbg("%s - port %d", __FUNCTION__, port->number); + + cp210x_get_config(port, CP2101_CONTROL, &control, 1); + + 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); + + dbg("%s - control = 0x%.2x", __FUNCTION__, control); + + return result; +} + +static void cp210x_break_ctl(struct usb_serial_port *port, int break_state) +{ + int state; + + dbg("%s - port %d", __FUNCTION__, port->number); + if (break_state == 0) + state = BREAK_OFF; + else + state = BREAK_ON; + dbg("%s - turning break %s", __FUNCTION__, + state==BREAK_OFF ? "off" : "on"); + cp210x_set_config(port, CP2101_BREAK, &state, 2); +} + +static int cp210x_startup(struct usb_serial *serial) +{ + /* CP2101 buffers behave strangely unless device is reset */ + usb_reset_device(serial->dev); + return 0; +} + +static void cp210x_shutdown(struct usb_serial *serial) +{ + int i; + + dbg("%s", __FUNCTION__); + + /* Stop reads and writes on all ports */ + for (i = 0; i < serial->num_ports; ++i) { + cp210x_cleanup(serial->port[i]); + } +} + +static int __init cp210x_init(void) +{ + int retval; + + retval = usb_serial_register(&cp210x_device); + if (retval) + return retval; /* Failed to register */ + + retval = usb_register(&cp210x_driver); + if (retval) { + /* Failed to register */ + usb_serial_deregister(&cp210x_device); + return retval; + } + + /* Success */ + info(DRIVER_DESC " " DRIVER_VERSION); + return 0; +} + +static void __exit cp210x_exit(void) +{ + usb_deregister(&cp210x_driver); + usb_serial_deregister(&cp210x_device); +} + +module_init(cp210x_init); +module_exit(cp210x_exit); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_VERSION(DRIVER_VERSION); +MODULE_LICENSE("GPL"); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Enable verbose debugging messages"); diff --git a/src/cp210x.c.natty b/src/cp210x.c.natty deleted file mode 100644 index d88d980..0000000 --- a/src/cp210x.c.natty +++ /dev/null @@ -1,1309 +0,0 @@ -/* - * 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 - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "cp210x.h" - -/* - * Version Information - */ -#define DRIVER_VERSION "vxxDEBVERxx" -#define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver" - -/* - * Function Prototypes - */ -static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *); -static void cp210x_close(struct usb_serial_port *); -static void cp210x_get_termios(struct tty_struct *, - struct usb_serial_port *port); -static void cp210x_get_termios_port(struct usb_serial_port *port, - unsigned int *cflagp, unsigned int *baudp); -static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *, - struct ktermios*); -static int cp210x_tiocmget(struct tty_struct *, struct file *); -static int cp210x_tiocmset(struct tty_struct *, struct file *, - unsigned int, unsigned int); -static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *, - unsigned int, unsigned int); -static void cp210x_break_ctl(struct tty_struct *, int); -static int cp210x_startup(struct usb_serial *); -static int cp210x_ioctl(struct tty_struct *, struct file *, - unsigned int, unsigned long); -static void cp210x_dtr_rts(struct usb_serial_port *p, int on); -static int cp210x_carrier_raised(struct usb_serial_port *p); - -static int debug; - -static const struct usb_device_id id_table[] = { - { USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */ - { USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */ - { USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */ - { 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(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(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */ - { USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */ - { USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */ - { USB_DEVICE(0x10C4, 0x0F91) }, /* Vstabi */ - { USB_DEVICE(0x10C4, 0x1101) }, /* Arkham Technology DS101 Bus Monitor */ - { USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */ - { USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */ - { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */ - { USB_DEVICE(0x10C4, 0x8044) }, /* Cygnal Debug Adapter */ - { 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, 0x8066) }, /* Argussoft In-System Programmer */ - { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */ - { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */ - { USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */ - { USB_DEVICE(0x10C4, 0x80DD) }, /* Tracient RFID */ - { USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */ - { USB_DEVICE(0x10C4, 0x8115) }, /* Arygon NFC/Mifare Reader */ - { USB_DEVICE(0x10C4, 0x813D) }, /* Burnside Telecom Deskmobile */ - { USB_DEVICE(0x10C4, 0x813F) }, /* Tams Master Easy Control */ - { USB_DEVICE(0x10C4, 0x8149) }, /* West Mountain Radio Computerized Battery Analyzer */ - { USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */ - { USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */ - { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ - { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */ - { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ - { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ - { 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, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */ - { USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */ - { USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */ - { USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */ - { 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 demostration module */ - { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesys ETRX2USB */ - { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */ - { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */ - { USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */ - { USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */ - { USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */ - { USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */ - { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */ - { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */ - { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */ - { 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(0x13AD, 0x9999) }, /* Baltech card reader */ - { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */ - { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ - { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */ - { 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(0x413C, 0x9500) }, /* DW700 GPS USB interface */ - { } /* Terminating Entry */ -}; - -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_driver cp210x_driver = { - .name = "cp210x", - .probe = usb_serial_probe, - .disconnect = usb_serial_disconnect, - .id_table = id_table, - .no_dynamic_id = 1, -}; - -static struct usb_serial_driver cp210x_device = { - .driver = { - .owner = THIS_MODULE, - .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, - .tiocmset = cp210x_tiocmset, - .attach = cp210x_startup, - .dtr_rts = cp210x_dtr_rts, - .carrier_raised = cp210x_carrier_raised -}; - -/* 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 - -/* CP210X_IFC_ENABLE */ -#define UART_ENABLE 0x0001 -#define UART_DISABLE 0x0000 - -/* CP210X_(SET|GET)_BAUDDIV */ -#define BAUD_RATE_GEN_FREQ 0x384000 - -/* CP210X_(SET|GET)_LINE_CTL */ -#define BITS_DATA_MASK 0X0f00 -#define BITS_DATA_5 0X0500 -#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 - -/* CP210X_SET_BREAK */ -#define BREAK_ON 0x0000 -#define BREAK_OFF 0x0001 - -/* CP210X_(SET_MHS|GET_MDMSTS) */ -#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 - -/* cp210x_get_partnum() return codes */ -#define CP210x_PART_UNKNOWN 0x00 -#define CP210x_PART_CP2101 0x01 -#define CP210x_PART_CP2102 0x02 -#define CP210x_PART_CP2103 0x03 - -/* Taken from drivers/usb/gadget/usbstring.c */ -static int utf8_to_utf16le(const char *s, __le16 *cp, unsigned len) -{ - int count = 0; - u8 c; - u16 uchar; - - /* this insists on correct encodings, though not minimal ones. - * BUT it currently rejects legit 4-byte UTF-8 code points, - * which need surrogate pairs. (Unicode 3.1 can use them.) - */ - while (len != 0 && (c = (u8) *s++) != 0) { - if (unlikely(c & 0x80)) { - // 2-byte sequence: - // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx - if ((c & 0xe0) == 0xc0) { - uchar = (c & 0x1f) << 6; - - c = (u8) *s++; - if ((c & 0xc0) != 0x80) - goto fail; - c &= 0x3f; - uchar |= c; - - // 3-byte sequence (most CJKV characters): - // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx - } else if ((c & 0xf0) == 0xe0) { - uchar = (c & 0x0f) << 12; - - c = (u8) *s++; - if ((c & 0xc0) != 0x80) - goto fail; - c &= 0x3f; - uchar |= c << 6; - - c = (u8) *s++; - if ((c & 0xc0) != 0x80) - goto fail; - c &= 0x3f; - uchar |= c; - - /* no bogus surrogates */ - if (0xd800 <= uchar && uchar <= 0xdfff) - goto fail; - - // 4-byte sequence (surrogate pairs, currently rare): - // 11101110wwwwzzzzyy + 110111yyyyxxxxxx - // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx - // (uuuuu = wwww + 1) - // FIXME accept the surrogate code points (only) - - } else - goto fail; - } else - uchar = c; - *cp++ = uchar; - count++; - len--; - } - return count; -fail: - return -1; -} - - -/* - * make_usb_string - * Populates usbstr with: (len) + (USB_DT_STRING) + unicode(str). Each char in - * usbstr consumes two bytes in unicode (__le16) format. - * Returns the resulting length of usbstr in bytes. - * This function can accept overlapping usbstr and str as long as the overlap - * does not cause data written to usbstr to overwrite data not yet read from - * str. - */ -static int make_usb_string(__le16* usbstr, size_t usblen, const char *src, - size_t srclen) -{ - int len; - - /* string descriptors have length, type, then UTF16-LE text */ - if (usblen > 254) - usblen = 254; - len = min(usblen / 2 - 1, srclen); - len = utf8_to_utf16le(src, usbstr + 1, len); - if (len >= 0) { - len = (len + 1) * 2; - ((u8 *)usbstr)[0] = len; - ((u8 *)usbstr)[1] = USB_DT_STRING; - } - return len; -} - -/* - * cp210x_usbstr_from_user - * Populate kbuf with a usb string derived from a user space variable. klen - * is the size of the buffer at kbuf. - * Returns the number of bytes used in kbuf. - */ -static size_t cp210x_usbstr_from_user(__le16 *kbuf, - struct cp210x_buffer __user *ubuf, size_t klen) -{ - struct cp210x_buffer t; - char *str; - size_t slen; - - if (copy_from_user(&t, ubuf, sizeof(t))) - return -EINVAL; - slen = klen / 2 - 1; - if (!t.buf || !t.len || t.len > slen) - return -EINVAL; - if (t.len < slen) - slen = t.len; - str = (char *)kbuf + klen - slen; - if (copy_from_user(str, (__u8 __user *)t.buf, slen)) - return -EINVAL; - return make_usb_string(kbuf, klen, str, slen); -} - -/* - * cp210x_ctlmsg - * A generic usb control message interface. - * Returns the actual size of the data read or written within the message, 0 - * if no data were read or written, or a negative value to indicate an error. - */ -static int cp210x_ctlmsg(struct usb_serial_port *port, u8 request, - u8 requestype, u16 value, u16 index, void *data, u16 size) -{ - struct usb_device *dev = port->serial->dev; - u8 *tbuf; - int ret; - - tbuf = kmalloc(size, GFP_KERNEL); - if (!tbuf) - return -ENOMEM; - if (requestype & USB_DIR_IN) { - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, - requestype, value, index, tbuf, size, 300); - if (ret > 0 && size) - memcpy(data, tbuf, size); - } else { - if (size) - memcpy(tbuf, data, size); - ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, - requestype, value, index, tbuf, size, 300); - } - kfree(tbuf); - if (ret < 0 && ret != -EPIPE) { - dev_printk(KERN_DEBUG, &dev->dev, - "cp210x: ctl failed cmd rqt %u rq %u len %u ret %d\n", - requestype, request, size, ret); - } - return ret; -} - -static int cp210x_reset(struct usb_serial_port *port) -{ - dbg("%s", __func__); - - /* Instructing the CP210X to reset seems to work more reliably than - * calling usb_reset_device(). - */ - cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, - 0x0008, 0x00, NULL, 0); - return 0; -} - -static int cp210x_get_partnum(struct usb_serial_port *port) -{ - static u8 _partnum = CP210x_PART_UNKNOWN; - - if (_partnum == CP210x_PART_UNKNOWN) { - u8 addr = port->serial->dev->actconfig->interface[0]-> - cur_altsetting->endpoint[0].desc.bEndpointAddress & - USB_ENDPOINT_NUMBER_MASK; - - if (addr == 0x03 || addr == 0x02) - _partnum = CP210x_PART_CP2101; - else if (addr == 0x01) { - /* Must query part to determine part number */ - if (cp210x_ctlmsg(port, 0xff, - USB_DIR_IN|USB_TYPE_VENDOR, - 0x370b, 0x00, &_partnum, 1) != 1) - _partnum = CP210x_PART_UNKNOWN; - } - } - dbg("%s - partnum %u", __func__, _partnum); - return _partnum; -} - -static inline int cp210x_setu16(struct usb_serial_port *port, int cmd, - unsigned int value) -{ - return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, - 0x3700 | (cmd & 0xff), value, NULL, 0); -} - -/* - * cp210x_setstr - * - * Set a USB string descriptor using proprietary cp210x control messages. - * Return the number of characters actually written. - */ -static int cp210x_setstr(struct usb_serial_port *port, int cmd, __le16 *usbstr) -{ - int len = ((u8 *)usbstr)[0]; - int ret = cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, - 0x3700 | (cmd & 0xff), 0, usbstr, len); - dbg("%s - cmd 0x%02x len %d ret %d", __func__, cmd, len, ret); - return ret; -} - -/* Set all gpio simultaneously */ -static int cp210x_gpioset(struct usb_serial_port *port, u8 gpio) -{ - dbg("%s - port %d, gpio = 0x%.2x", __func__, port->number, gpio); - - return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, - 0x37e1, ((uint16_t)gpio << 8) | GPIO_MASK, NULL, 0); -} - -/* Set select gpio bits */ -static int cp210x_gpiosetb(struct usb_serial_port *port, u8 set, u8 clear) -{ - u16 gpio = 0; - - /* The bitmask is in the LSB, the values in the MSB */ - if (set & GPIO_0) - gpio |= (GPIO_0 << 8)|GPIO_0; - if (set & GPIO_1) - gpio |= (GPIO_1 << 8)|GPIO_1; - if (set & GPIO_2) - gpio |= (GPIO_2 << 8)|GPIO_2; - if (set & GPIO_3) - gpio |= (GPIO_3 << 8)|GPIO_3; - if (clear & GPIO_0) - gpio = (gpio & ~(GPIO_0 << 8))|GPIO_0; - if (clear & GPIO_1) - gpio = (gpio & ~(GPIO_1 << 8))|GPIO_1; - if (clear & GPIO_2) - gpio = (gpio & ~(GPIO_2 << 8))|GPIO_2; - if (clear & GPIO_3) - gpio = (gpio & ~(GPIO_3 << 8))|GPIO_3; - - dbg("%s - port %d, gpiob = 0x%.4x", __func__, port->number, gpio); - - return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, - 0x37e1, gpio, NULL, 0); -} - -static int cp210x_gpioget(struct usb_serial_port *port, u8 *gpio) -{ - int ret; - - dbg("%s - port %d", __func__, port->number); - - ret = cp210x_ctlmsg(port, 0xff, USB_DIR_IN|USB_TYPE_VENDOR, - 0x00c2, 0, gpio, 1); - - dbg("%s - gpio = 0x%.2x (%d)", __func__, *gpio, ret); - - return (ret == 1) ? 0 : -1; -} - -static int cp210x_portconfset(struct usb_serial_port *port, - struct cp210x_port_config *config) -{ - struct cp210x_port_config lconfig; - int ret; - - dbg("%s", __func__); - - memcpy(&lconfig, config, sizeof(lconfig)); - - /* Words from cp210x are MSB */ - lconfig.reset.mode = cpu_to_be16(config->reset.mode); - lconfig.reset.latch = cpu_to_be16(config->reset.latch); - lconfig.suspend.mode = cpu_to_be16(config->suspend.mode); - lconfig.suspend.latch = cpu_to_be16(config->suspend.latch); - /* apparently not implemented by CP210X firmware */ - lconfig.suspend.lowPower = 0; - lconfig.reset.lowPower = 0; - - ret = cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, 0x370c, - 0, &lconfig, sizeof(struct cp210x_port_config)); - if (ret == sizeof(struct cp210x_port_config)) - return 0; - else if (ret >= 0) - return -1; - else - return ret; -} - -static int cp210x_portconfget(struct usb_serial_port *port, - struct cp210x_port_config *config) -{ - int ret; - - dbg("%s", __func__); - - ret = cp210x_ctlmsg(port, 0xff, USB_DIR_IN|USB_TYPE_VENDOR, - 0x370c, 0, config, sizeof(struct cp210x_port_config)); - if (ret == sizeof(struct cp210x_port_config)) { - /* Words from cp210x are MSB */ - config->reset.mode = be16_to_cpu(config->reset.mode); - config->reset.lowPower = be16_to_cpu(config->reset.lowPower); - config->reset.latch = be16_to_cpu(config->reset.latch); - config->suspend.mode = be16_to_cpu(config->suspend.mode); - config->suspend.lowPower = - be16_to_cpu(config->suspend.lowPower); - config->suspend.latch = be16_to_cpu(config->suspend.latch); - - /* apparently not implemented yet */ - config->reset.lowPower = 0; - config->suspend.lowPower = 0; - - return 0; - } else if (ret >= 0) - return -1; - else - return ret; - -} - -/* - * 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) - */ -static int cp210x_get_config(struct usb_serial_port *port, u8 request, - unsigned int *data, int size) -{ - struct usb_serial *serial = port->serial; - __le32 *buf; - int result, i, length; - - /* Number of integers required to contain the array */ - length = (((size - 1) | 3) + 1)/4; - - buf = kcalloc(length, sizeof(__le32), GFP_KERNEL); - if (!buf) { - dev_err(&port->dev, "%s - out of memory.\n", __func__); - return -ENOMEM; - } - - /* Issue the request, attempting to read 'size' bytes */ - result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), - request, - USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_INTERFACE, - 0x0000, 0, buf, size, 300); - - /* Convert data into an array of integers */ - for (i = 0; i < length; i++) - data[i] = le32_to_cpu(buf[i]); - - kfree(buf); - - if (result != size) { - dbg("%s - Unable to send config request, " - "request=0x%x size=%d result=%d\n", - __func__, request, size, result); - return -EPROTO; - } - - 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. - */ -static int cp210x_set_config(struct usb_serial_port *port, u8 request, - unsigned int *data, int size) -{ - struct usb_serial *serial = port->serial; - __le32 *buf; - int result, i, length; - - /* 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; - } - - /* Array of integers into bytes */ - for (i = 0; i < length; i++) - buf[i] = cpu_to_le32(data[i]); - - if (size > 2) { - result = usb_control_msg(serial->dev, - usb_sndctrlpipe(serial->dev, 0), request, - USB_TYPE_VENDOR|USB_RECIP_INTERFACE, 0x0000, - 0, buf, size, 300); - } else { - result = usb_control_msg(serial->dev, - usb_sndctrlpipe(serial->dev, 0), request, - USB_TYPE_VENDOR|USB_RECIP_INTERFACE, data[0], - 0, NULL, 0, 300); - } - - kfree(buf); - - if ((size > 2 && result != size) || result < 0) { - dbg("%s - Unable to send request, " - "request=0x%x size=%d result=%d\n", - __func__, request, size, result); - return -EPROTO; - } - - return 0; -} - -/* - * cp210x_set_config_single - * Convenience function for calling cp210x_set_config on single data values - * without requiring an integer pointer - */ -static inline int cp210x_set_config_single(struct usb_serial_port *port, - u8 request, unsigned int data) -{ - return cp210x_set_config(port, request, &data, 2); -} - -/* - * cp210x_quantise_baudrate - * Quantises the baud rate as per AN205 Table 1 - */ -static unsigned int cp210x_quantise_baudrate(unsigned int baud) { - if (baud <= 56) baud = 0; - else if (baud <= 300) baud = 300; - 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; - else if (baud <= 1053257) baud = 921600; - else if (baud <= 1474560) baud = 1228800; - else if (baud <= 2457600) baud = 1843200; - else baud = 3686400; - return baud; -} - -static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) -{ - int result; - - dbg("%s - port %d", __func__, port->number); - - if (cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) { - dev_err(&port->dev, "%s - Unable to enable UART\n", - __func__); - return -EPROTO; - } - - result = usb_serial_generic_open(tty, port); - if (result) - return result; - - /* Configure the termios structure */ - cp210x_get_termios(tty, port); - return 0; -} - -static void cp210x_close(struct usb_serial_port *port) -{ - dbg("%s - port %d", __func__, port->number); - - usb_serial_generic_close(port); - - mutex_lock(&port->serial->disc_mutex); - if (!port->serial->disconnected) - cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE); - mutex_unlock(&port->serial->disc_mutex); -} - -static int cp210x_ioctl(struct tty_struct *tty, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - - dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd); - - switch (cmd) { - - case TIOCMGET: - { - int result = cp210x_tiocmget(tty, file); - if (copy_to_user((int __user *)&arg, &result, sizeof(int))) - return -EFAULT; - return 0; - } - break; - - case TIOCMSET: - case TIOCMBIS: - case TIOCMBIC: - { - int val = 0; - - if (copy_from_user(&val, (int __user *)&arg, sizeof(int))) - return -EFAULT; - - /* this looks wrong: TIOCMSET isn't going to work right */ - if (cp210x_tiocmset(tty, file, (cmd == TIOCMBIC) ? 0 : val, - (cmd == TIOCMBIC) ? val : 0)) - return -EFAULT; - return 0; - } - break; - - case CP210x_IOCTL_GPIOGET: - if (cp210x_get_partnum(port) == CP210x_PART_CP2103) { - u8 gpio = 0; - if (!cp210x_gpioget(port, &gpio) && !copy_to_user( - (__u8 __user *)arg, &gpio, - sizeof(gpio))) - return 0; - } - return -EFAULT; - break; - - case CP210x_IOCTL_GPIOSET: - if (cp210x_get_partnum(port) == CP210x_PART_CP2103 && - !cp210x_gpioset(port, arg)) - return 0; - return -EFAULT; - break; - - case CP210x_IOCTL_GPIOBIC: - case CP210x_IOCTL_GPIOBIS: - if (cp210x_get_partnum(port) == CP210x_PART_CP2103 && - !cp210x_gpiosetb(port, - (cmd == CP210x_IOCTL_GPIOBIC) ? 0 : arg, - (cmd == CP210x_IOCTL_GPIOBIC) ? arg : 0)) - return 0; - return -EFAULT; - break; - - case CP210x_IOCTL_DEVICERESET: - return cp210x_reset(port); - break; - - case CP210x_IOCTL_PORTCONFGET: - { - struct cp210x_port_config config; - if (!cp210x_portconfget(port, &config) && !copy_to_user( - (struct cp210x_port_config __user *)arg, - &config, sizeof(config))) - return 0; - } - return -EFAULT; - break; - - case CP210x_IOCTL_PORTCONFSET: - { - struct cp210x_port_config config; - if (!copy_from_user(&config, (struct cp210x_port_config __user *)arg, - sizeof(config)) && - !cp210x_portconfset(port, &config)) - return 0; - return -EFAULT; - } - break; - - case CP210x_IOCTL_SETVID: - { - unsigned int vid; - if (!copy_from_user(&vid, (unsigned int __user *)arg, - sizeof(unsigned int)) && - !cp210x_setu16(port, 0x01, vid)) - return 0; - return -EFAULT; - } - break; - - case CP210x_IOCTL_SETPID: - { - unsigned int pid; - if (!copy_from_user(&pid, (unsigned int __user *)arg, - sizeof(unsigned int)) && - !cp210x_setu16(port, 0x02, pid)) - return 0; - return -EFAULT; - } - break; - - case CP210x_IOCTL_SETPRODUCT: - { - __le16 usbstr[CP210x_MAX_PRODUCT_STRLEN + 1]; - size_t len = cp210x_usbstr_from_user(usbstr, - (struct cp210x_buffer __user *)arg, - sizeof(usbstr)); - if (len > 0 && cp210x_setstr(port, 0x03, usbstr) == len) - return 0; - return -EFAULT; - } - break; - - case CP210x_IOCTL_SETSERIAL: - { - __le16 usbstr[CP210x_MAX_SERIAL_STRLEN + 1]; - size_t len = cp210x_usbstr_from_user(usbstr, - (struct cp210x_buffer __user *)arg, - sizeof(usbstr)); - if (len > 0 && cp210x_setstr(port, 0x04, usbstr) == len) - return 0; - return -EFAULT; - } - break; - - case CP210x_IOCTL_SETDEVVER: - { - unsigned int ver; - if (!copy_from_user(&ver, (unsigned int __user *)arg, - sizeof(unsigned int)) && - !cp210x_setu16(port, 0x07, ver)) - return 0; - return -EFAULT; - } - break; - - default: - dbg("%s not supported = 0x%04x", __func__, cmd); - break; - } - - return -ENOIOCTLCMD; -} - -/* - * cp210x_get_termios - * 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 - */ -static void cp210x_get_termios(struct tty_struct *tty, - struct usb_serial_port *port) -{ - unsigned int baud; - - if (tty) { - cp210x_get_termios_port(tty->driver_data, - &tty->termios->c_cflag, &baud); - tty_encode_baud_rate(tty, baud, baud); - } - - else { - unsigned int cflag; - cflag = 0; - cp210x_get_termios_port(port, &cflag, &baud); - } -} - -/* - * cp210x_get_termios_port - * This is the heart of cp210x_get_termios which always uses a &usb_serial_port. - */ -static void cp210x_get_termios_port(struct usb_serial_port *port, - unsigned int *cflagp, unsigned int *baudp) -{ - unsigned int cflag, modem_ctl[4]; - unsigned int baud; - unsigned int bits; - - dbg("%s - port %d", __func__, port->number); - - cp210x_get_config(port, CP210X_GET_BAUDDIV, &baud, 2); - /* Convert to baudrate */ - if (baud) - baud = cp210x_quantise_baudrate((BAUD_RATE_GEN_FREQ + baud/2)/ baud); - - dbg("%s - baud rate = %d", __func__, baud); - *baudp = baud; - - cflag = *cflagp; - - cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); - cflag &= ~CSIZE; - switch (bits & BITS_DATA_MASK) { - case BITS_DATA_5: - dbg("%s - data bits = 5", __func__); - cflag |= CS5; - break; - case BITS_DATA_6: - dbg("%s - data bits = 6", __func__); - cflag |= CS6; - break; - case BITS_DATA_7: - dbg("%s - data bits = 7", __func__); - cflag |= CS7; - break; - case BITS_DATA_8: - dbg("%s - data bits = 8", __func__); - cflag |= CS8; - break; - case BITS_DATA_9: - dbg("%s - data bits = 9 (not supported, using 8 data bits)", - __func__); - cflag |= CS8; - bits &= ~BITS_DATA_MASK; - bits |= BITS_DATA_8; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); - break; - default: - dbg("%s - Unknown number of data bits, using 8", __func__); - cflag |= CS8; - bits &= ~BITS_DATA_MASK; - bits |= BITS_DATA_8; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); - break; - } - - switch (bits & BITS_PARITY_MASK) { - case BITS_PARITY_NONE: - dbg("%s - parity = NONE", __func__); - cflag &= ~PARENB; - break; - case BITS_PARITY_ODD: - dbg("%s - parity = ODD", __func__); - cflag |= (PARENB|PARODD); - break; - case BITS_PARITY_EVEN: - dbg("%s - parity = EVEN", __func__); - cflag &= ~PARODD; - cflag |= PARENB; - break; - case BITS_PARITY_MARK: - dbg("%s - parity = MARK (not supported, disabling parity)", - __func__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); - break; - case BITS_PARITY_SPACE: - dbg("%s - parity = SPACE (not supported, disabling parity)", - __func__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); - break; - default: - dbg("%s - Unknown parity mode, disabling parity", __func__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); - break; - } - - cflag &= ~CSTOPB; - switch (bits & BITS_STOP_MASK) { - case BITS_STOP_1: - dbg("%s - stop bits = 1", __func__); - break; - case BITS_STOP_1_5: - dbg("%s - stop bits = 1.5 (not supported, using 1 stop bit)", - __func__); - bits &= ~BITS_STOP_MASK; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); - break; - case BITS_STOP_2: - dbg("%s - stop bits = 2", __func__); - cflag |= CSTOPB; - break; - default: - dbg("%s - Unknown number of stop bits, using 1 stop bit", - __func__); - bits &= ~BITS_STOP_MASK; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); - break; - } - - cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); - if (modem_ctl[0] & 0x0008) { - dbg("%s - flow control = CRTSCTS", __func__); - cflag |= CRTSCTS; - } else { - dbg("%s - flow control = NONE", __func__); - cflag &= ~CRTSCTS; - } - - *cflagp = cflag; -} - -static void cp210x_set_termios(struct tty_struct *tty, - struct usb_serial_port *port, struct ktermios *old_termios) -{ - unsigned int cflag, old_cflag; - unsigned int baud = 0, bits; - unsigned int modem_ctl[4]; - - dbg("%s - port %d", __func__, port->number); - - if (!tty) - return; - - tty->termios->c_cflag &= ~CMSPAR; - cflag = tty->termios->c_cflag; - old_cflag = old_termios->c_cflag; - baud = cp210x_quantise_baudrate(tty_get_baud_rate(tty)); - - /* If the baud rate is to be updated*/ - if (baud != tty_termios_baud_rate(old_termios) && baud != 0) { - dbg("%s - Setting baud rate to %d baud", __func__, - baud); - if (cp210x_set_config_single(port, CP210X_SET_BAUDDIV, - ((BAUD_RATE_GEN_FREQ + baud/2) / baud))) { - dbg("Baud rate requested not supported by device"); - baud = tty_termios_baud_rate(old_termios); - } - } - /* Report back the resulting baud rate */ - tty_encode_baud_rate(tty, baud, baud); - - /* If the number of data bits is to be updated */ - if ((cflag & CSIZE) != (old_cflag & CSIZE)) { - cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); - bits &= ~BITS_DATA_MASK; - switch (cflag & CSIZE) { - case CS5: - bits |= BITS_DATA_5; - dbg("%s - data bits = 5", __func__); - break; - case CS6: - bits |= BITS_DATA_6; - dbg("%s - data bits = 6", __func__); - break; - case CS7: - bits |= BITS_DATA_7; - dbg("%s - data bits = 7", __func__); - break; - case CS8: - bits |= BITS_DATA_8; - dbg("%s - data bits = 8", __func__); - break; - /*case CS9: - bits |= BITS_DATA_9; - dbg("%s - data bits = 9", __func__); - break;*/ - default: - dbg("cp210x driver does not " - "support the number of bits requested," - " using 8 bit mode\n"); - bits |= BITS_DATA_8; - break; - } - if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) - dbg("Number of data bits requested " - "not supported by device\n"); - } - - if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) { - cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); - bits &= ~BITS_PARITY_MASK; - if (cflag & PARENB) { - if (cflag & PARODD) { - bits |= BITS_PARITY_ODD; - dbg("%s - parity = ODD", __func__); - } else { - bits |= BITS_PARITY_EVEN; - dbg("%s - parity = EVEN", __func__); - } - } - if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) - dbg("Parity mode not supported " - "by device\n"); - } - - if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) { - cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); - bits &= ~BITS_STOP_MASK; - if (cflag & CSTOPB) { - bits |= BITS_STOP_2; - dbg("%s - stop bits = 2", __func__); - } else { - bits |= BITS_STOP_1; - dbg("%s - stop bits = 1", __func__); - } - if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) - dbg("Number of stop bits requested " - "not supported by device\n"); - } - - if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) { - cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); - dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", - __func__, modem_ctl[0], modem_ctl[1], - modem_ctl[2], modem_ctl[3]); - - if (cflag & CRTSCTS) { - modem_ctl[0] &= ~0x7B; - modem_ctl[0] |= 0x09; - modem_ctl[1] = 0x80; - dbg("%s - flow control = CRTSCTS", __func__); - } else { - modem_ctl[0] &= ~0x7B; - modem_ctl[0] |= 0x01; - modem_ctl[1] |= 0x40; - dbg("%s - flow control = NONE", __func__); - } - - dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", - __func__, modem_ctl[0], modem_ctl[1], - modem_ctl[2], modem_ctl[3]); - cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16); - } - -} - -static int cp210x_tiocmset (struct tty_struct *tty, struct file *file, - unsigned int set, unsigned int clear) -{ - struct usb_serial_port *port = tty->driver_data; - return cp210x_tiocmset_port(port, file, set, clear); -} - -static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *file, - unsigned int set, unsigned int clear) -{ - unsigned int control = 0; - - dbg("%s - port %d", __func__, port->number); - - 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; - } - - dbg("%s - control = 0x%.4x", __func__, control); - - return cp210x_set_config(port, CP210X_SET_MHS, &control, 2); -} - -static void cp210x_dtr_rts(struct usb_serial_port *p, int on) -{ - if (on) - cp210x_tiocmset_port(p, NULL, TIOCM_DTR|TIOCM_RTS, 0); - else - cp210x_tiocmset_port(p, NULL, 0, TIOCM_DTR|TIOCM_RTS); -} - -static int cp210x_tiocmget (struct tty_struct *tty, struct file *file) -{ - struct usb_serial_port *port = tty->driver_data; - unsigned int control; - int result; - - dbg("%s - port %d", __func__, port->number); - - cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1); - - 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); - - dbg("%s - control = 0x%.2x", __func__, control); - - return result; -} - -static int cp210x_carrier_raised(struct usb_serial_port *p) -{ - unsigned int control; - cp210x_get_config(p, CP210X_GET_MDMSTS, &control, 1); - if (control & CONTROL_DCD) - return 1; - return 0; -} - -static void cp210x_break_ctl (struct tty_struct *tty, int break_state) -{ - struct usb_serial_port *port = tty->driver_data; - unsigned int state; - - dbg("%s - port %d", __func__, port->number); - if (break_state == 0) - state = BREAK_OFF; - else - state = BREAK_ON; - dbg("%s - turning break %s", __func__, - state == BREAK_OFF ? "off" : "on"); - cp210x_set_config(port, CP210X_SET_BREAK, &state, 2); -} - -static int cp210x_startup(struct usb_serial *serial) -{ - /* cp210x buffers behave strangely unless device is reset */ - usb_reset_device(serial->dev); - return 0; -} - -static int __init cp210x_init(void) -{ - int retval; - - retval = usb_serial_register(&cp210x_device); - if (retval) - return retval; /* Failed to register */ - - retval = usb_register(&cp210x_driver); - if (retval) { - /* Failed to register */ - usb_serial_deregister(&cp210x_device); - return retval; - } - - /* Success */ - printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" - DRIVER_DESC "\n"); - return 0; -} - -static void __exit cp210x_exit(void) -{ - usb_deregister(&cp210x_driver); - usb_serial_deregister(&cp210x_device); -} - -module_init(cp210x_init); -module_exit(cp210x_exit); - -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_VERSION(DRIVER_VERSION); -MODULE_LICENSE("GPL"); - -module_param(debug, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Enable verbose debugging messages");