]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - drivers/usb/serial/cp2101.c
USB: more serial drivers writing after disconnect
[karo-tx-linux.git] / drivers / usb / serial / cp2101.c
index e831cb7f64fd00eb590812fae00b53298112b807..f3ca66017a031ba81db256216b905b4cf3989efa 100644 (file)
@@ -53,10 +53,13 @@ static void cp2101_shutdown(struct usb_serial*);
 static int debug;
 
 static struct usb_device_id id_table [] = {
+       { USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */
        { USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */
+       { USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */
        { 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, 0x800A) }, /* SPORTident BSM7-D-USB main station */
        { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */
        { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
        { USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
@@ -70,11 +73,17 @@ static struct usb_device_id id_table [] = {
        { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */
        { 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, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */
        { 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(0x13AD, 0x9999) }, /* Baltech card reader */
+       { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */
        { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
        { } /* Terminating Entry */
 };
@@ -97,8 +106,8 @@ static struct usb_serial_driver cp2101_device = {
        .usb_driver             = &cp2101_driver,
        .id_table               = id_table,
        .num_interrupt_in       = 0,
-       .num_bulk_in            = 0,
-       .num_bulk_out           = 0,
+       .num_bulk_in            = NUM_DONT_CARE,
+       .num_bulk_out           = NUM_DONT_CARE,
        .num_ports              = 1,
        .open                   = cp2101_open,
        .close                  = cp2101_close,
@@ -339,7 +348,10 @@ static void cp2101_close (struct usb_serial_port *port, struct file * filp)
        usb_kill_urb(port->write_urb);
        usb_kill_urb(port->read_urb);
 
-       cp2101_set_config_single(port, CP2101_UART, UART_DISABLE);
+       mutex_lock(&port->serial->disc_mutex);
+       if (!port->serial->disconnected)
+               cp2101_set_config_single(port, CP2101_UART, UART_DISABLE);
+       mutex_unlock(&port->serial->disc_mutex);
 }
 
 /*
@@ -356,11 +368,10 @@ static void cp2101_get_termios (struct usb_serial_port *port)
 
        dbg("%s - port %d", __FUNCTION__, port->number);
 
-       if ((!port->tty) || (!port->tty->termios)) {
+       if (!port->tty || !port->tty->termios) {
                dbg("%s - no tty structures", __FUNCTION__);
                return;
        }
-       cflag = port->tty->termios->c_cflag;
 
        cp2101_get_config(port, CP2101_BAUDRATE, &baud, 2);
        /* Convert to baudrate */
@@ -368,40 +379,9 @@ static void cp2101_get_termios (struct usb_serial_port *port)
                baud = BAUD_RATE_GEN_FREQ / baud;
 
        dbg("%s - baud rate = %d", __FUNCTION__, baud);
-       cflag &= ~CBAUD;
-       switch (baud) {
-               /*
-                * The baud rates which are commented out below
-                * appear to be supported by the device
-                * but are non-standard
-                */
-               case 600:       cflag |= B600;          break;
-               case 1200:      cflag |= B1200;         break;
-               case 1800:      cflag |= B1800;         break;
-               case 2400:      cflag |= B2400;         break;
-               case 4800:      cflag |= B4800;         break;
-               /*case 7200:    cflag |= B7200;         break;*/
-               case 9600:      cflag |= B9600;         break;
-               /*case 14400:   cflag |= B14400;        break;*/
-               case 19200:     cflag |= B19200;        break;
-               /*case 28800:   cflag |= B28800;        break;*/
-               case 38400:     cflag |= B38400;        break;
-               /*case 55854:   cflag |= B55054;        break;*/
-               case 57600:     cflag |= B57600;        break;
-               case 115200:    cflag |= B115200;       break;
-               /*case 127117:  cflag |= B127117;       break;*/
-               case 230400:    cflag |= B230400;       break;
-               case 460800:    cflag |= B460800;       break;
-               case 921600:    cflag |= B921600;       break;
-               /*case 3686400: cflag |= B3686400;      break;*/
-               default:
-                       dbg("%s - Baud rate is not supported, "
-                                       "using 9600 baud", __FUNCTION__);
-                       cflag |= B9600;
-                       cp2101_set_config_single(port, CP2101_BAUDRATE,
-                                       (BAUD_RATE_GEN_FREQ/9600));
-                       break;
-       }
+
+       tty_encode_baud_rate(port->tty, baud, baud);
+       cflag = port->tty->termios->c_cflag;
 
        cp2101_get_config(port, CP2101_BITS, &bits, 2);
        cflag &= ~CSIZE;
@@ -515,61 +495,48 @@ static void cp2101_get_termios (struct usb_serial_port *port)
 static void cp2101_set_termios (struct usb_serial_port *port,
                struct ktermios *old_termios)
 {
-       unsigned int cflag, old_cflag=0;
+       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)) {
+       if (!port->tty || !port->tty->termios) {
                dbg("%s - no tty structures", __FUNCTION__);
                return;
        }
-       cflag = port->tty->termios->c_cflag;
+       port->tty->termios->c_cflag &= ~CMSPAR;
 
-       /* Check that they really want us to change something */
-       if (old_termios) {
-               if ((cflag == old_termios->c_cflag) &&
-                               (RELEVANT_IFLAG(port->tty->termios->c_iflag)
-                               == RELEVANT_IFLAG(old_termios->c_iflag))) {
-                       dbg("%s - nothing to change...", __FUNCTION__);
-                       return;
-               }
-
-               old_cflag = old_termios->c_cflag;
-       }
+       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 ((cflag & CBAUD) != (old_cflag & CBAUD)) {
-               switch (cflag & CBAUD) {
-                       /*
-                        * The baud rates which are commented out below
-                        * appear to be supported by the device
-                        * but are non-standard
-                        */
-                       case B0:        baud = 0;       break;
-                       case B600:      baud = 600;     break;
-                       case B1200:     baud = 1200;    break;
-                       case B1800:     baud = 1800;    break;
-                       case B2400:     baud = 2400;    break;
-                       case B4800:     baud = 4800;    break;
-                       /*case B7200:   baud = 7200;    break;*/
-                       case B9600:     baud = 9600;    break;
-                       /*ase B14400:   baud = 14400;   break;*/
-                       case B19200:    baud = 19200;   break;
-                       /*case B28800:  baud = 28800;   break;*/
-                       case B38400:    baud = 38400;   break;
-                       /*case B55854:  baud = 55054;   break;*/
-                       case B57600:    baud = 57600;   break;
-                       case B115200:   baud = 115200;  break;
-                       /*case B127117: baud = 127117;  break;*/
-                       case B230400:   baud = 230400;  break;
-                       case B460800:   baud = 460800;  break;
-                       case B921600:   baud = 921600;  break;
-                       /*case B3686400:        baud = 3686400; break;*/
+       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:
-                               dev_err(&port->dev, "cp2101 driver does not "
-                                       "support the baudrate requested\n");
+                               baud = 9600;
                                break;
                }
 
@@ -577,11 +544,15 @@ static void cp2101_set_termios (struct usb_serial_port *port,
                        dbg("%s - Setting baud rate to %d baud", __FUNCTION__,
                                        baud);
                        if (cp2101_set_config_single(port, CP2101_BAUDRATE,
-                                               (BAUD_RATE_GEN_FREQ / baud)))
+                                               (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)) {