diff options
| -rw-r--r-- | arch/arm/configs/badge4_defconfig | 1 | ||||
| -rw-r--r-- | arch/arm/configs/corgi_defconfig | 1 | ||||
| -rw-r--r-- | arch/arm/configs/pxa_defconfig | 1 | ||||
| -rw-r--r-- | arch/arm/configs/spitz_defconfig | 1 | ||||
| -rw-r--r-- | arch/mips/configs/mtx1_defconfig | 1 | ||||
| -rw-r--r-- | arch/mips/configs/rm200_defconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/configs/g5_defconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/configs/ppc6xx_defconfig | 1 | ||||
| -rw-r--r-- | drivers/usb/serial/Kconfig | 19 | ||||
| -rw-r--r-- | drivers/usb/serial/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/serial/cp210x.c | 499 | ||||
| -rw-r--r-- | drivers/usb/serial/digi_acceleport.c | 62 | ||||
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 23 | ||||
| -rw-r--r-- | drivers/usb/serial/iuu_phoenix.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/keyspan_pda.c | 548 | ||||
| -rw-r--r-- | drivers/usb/serial/mos7720.c | 236 | ||||
| -rw-r--r-- | drivers/usb/serial/option.c | 23 | ||||
| -rw-r--r-- | include/linux/usb/serial.h | 2 |
18 files changed, 444 insertions, 979 deletions
diff --git a/arch/arm/configs/badge4_defconfig b/arch/arm/configs/badge4_defconfig index ef484c4cfd1a..d9119da65f48 100644 --- a/arch/arm/configs/badge4_defconfig +++ b/arch/arm/configs/badge4_defconfig @@ -89,7 +89,6 @@ CONFIG_USB_SERIAL_KEYSPAN=m CONFIG_USB_SERIAL_MCT_U232=m CONFIG_USB_SERIAL_PL2303=m CONFIG_USB_SERIAL_CYBERJACK=m -CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_EXT2_FS=m CONFIG_EXT3_FS=m diff --git a/arch/arm/configs/corgi_defconfig b/arch/arm/configs/corgi_defconfig index 4fec2ec379ad..911e880f06ed 100644 --- a/arch/arm/configs/corgi_defconfig +++ b/arch/arm/configs/corgi_defconfig @@ -191,7 +191,6 @@ CONFIG_USB_SERIAL_PL2303=m CONFIG_USB_SERIAL_SAFE=m CONFIG_USB_SERIAL_TI=m CONFIG_USB_SERIAL_CYBERJACK=m -CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_EMI62=m CONFIG_USB_EMI26=m diff --git a/arch/arm/configs/pxa_defconfig b/arch/arm/configs/pxa_defconfig index d7b9eaf4783c..8654ece13004 100644 --- a/arch/arm/configs/pxa_defconfig +++ b/arch/arm/configs/pxa_defconfig @@ -574,7 +574,6 @@ CONFIG_USB_SERIAL_PL2303=m CONFIG_USB_SERIAL_SAFE=m CONFIG_USB_SERIAL_TI=m CONFIG_USB_SERIAL_CYBERJACK=m -CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_EMI62=m CONFIG_USB_EMI26=m diff --git a/arch/arm/configs/spitz_defconfig b/arch/arm/configs/spitz_defconfig index a1cdbfa064c5..8b2c14424927 100644 --- a/arch/arm/configs/spitz_defconfig +++ b/arch/arm/configs/spitz_defconfig @@ -185,7 +185,6 @@ CONFIG_USB_SERIAL_PL2303=m CONFIG_USB_SERIAL_SAFE=m CONFIG_USB_SERIAL_TI=m CONFIG_USB_SERIAL_CYBERJACK=m -CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_EMI62=m CONFIG_USB_EMI26=m diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig index 914af125a7fa..9750bcc38f05 100644 --- a/arch/mips/configs/mtx1_defconfig +++ b/arch/mips/configs/mtx1_defconfig @@ -565,7 +565,6 @@ CONFIG_USB_SERIAL_SAFE=m CONFIG_USB_SERIAL_SIERRAWIRELESS=m CONFIG_USB_SERIAL_TI=m CONFIG_USB_SERIAL_CYBERJACK=m -CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OPTION=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_EMI62=m diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig index 30d7c3db884e..3dc2da2bee0d 100644 --- a/arch/mips/configs/rm200_defconfig +++ b/arch/mips/configs/rm200_defconfig @@ -311,7 +311,6 @@ CONFIG_USB_SERIAL_PL2303=m CONFIG_USB_SERIAL_SAFE=m CONFIG_USB_SERIAL_SAFE_PADDED=y CONFIG_USB_SERIAL_CYBERJACK=m -CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_LEGOTOWER=m CONFIG_USB_LCD=m diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig index 1c674c4c1d86..1de0dbf6cbba 100644 --- a/arch/powerpc/configs/g5_defconfig +++ b/arch/powerpc/configs/g5_defconfig @@ -194,7 +194,6 @@ CONFIG_USB_SERIAL_SAFE=m CONFIG_USB_SERIAL_SAFE_PADDED=y CONFIG_USB_SERIAL_TI=m CONFIG_USB_SERIAL_CYBERJACK=m -CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_APPLEDISPLAY=m CONFIG_EXT2_FS=y diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig index 66e9a0fd64ff..ac92cbe1f581 100644 --- a/arch/powerpc/configs/ppc6xx_defconfig +++ b/arch/powerpc/configs/ppc6xx_defconfig @@ -911,7 +911,6 @@ CONFIG_USB_SERIAL_SAFE_PADDED=y CONFIG_USB_SERIAL_SIERRAWIRELESS=m CONFIG_USB_SERIAL_TI=m CONFIG_USB_SERIAL_CYBERJACK=m -CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OPTION=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_SERIAL_DEBUG=m diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index 4007fa25a8ff..a21ff5ab6df9 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -298,12 +298,12 @@ config USB_SERIAL_IUU module will be called iuu_phoenix.o config USB_SERIAL_KEYSPAN_PDA - tristate "USB Keyspan PDA Single Port Serial Driver" + tristate "USB Keyspan PDA / Xircom Single Port Serial Driver" select USB_EZUSB_FX2 help - Say Y here if you want to use a Keyspan PDA single port USB to - serial converter device. This driver makes use of firmware - developed from scratch by Brian Warner. + Say Y here if you want to use a Keyspan PDA, Xircom or Entrega single + port USB to serial converter device. This driver makes use of + firmware developed from scratch by Brian Warner. To compile this driver as a module, choose M here: the module will be called keyspan_pda. @@ -538,17 +538,6 @@ config USB_SERIAL_CYBERJACK If unsure, say N. -config USB_SERIAL_XIRCOM - tristate "USB Xircom / Entrega Single Port Serial Driver" - select USB_EZUSB_FX2 - help - Say Y here if you want to use a Xircom or Entrega single port USB to - serial converter device. This driver makes use of firmware - developed from scratch by Brian Warner. - - To compile this driver as a module, choose M here: the - module will be called keyspan_pda. - config USB_SERIAL_WWAN tristate diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index 2d491e434f11..50c53aed787a 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile @@ -61,5 +61,4 @@ obj-$(CONFIG_USB_SERIAL_UPD78F0730) += upd78f0730.o obj-$(CONFIG_USB_SERIAL_VISOR) += visor.o obj-$(CONFIG_USB_SERIAL_WISHBONE) += wishbone-serial.o obj-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat.o -obj-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda.o obj-$(CONFIG_USB_SERIAL_XSENS_MT) += xsens_mt.o diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index d0c05aa8a0d6..fbb10dfc56e3 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -31,9 +31,6 @@ */ 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 *); -static void cp210x_get_termios_port(struct usb_serial_port *port, - tcflag_t *cflagp, unsigned int *baudp); static void cp210x_change_speed(struct tty_struct *, struct usb_serial_port *, struct ktermios *); static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *, @@ -49,7 +46,7 @@ static void cp210x_disconnect(struct usb_serial *); static void cp210x_release(struct usb_serial *); static int cp210x_port_probe(struct usb_serial_port *); static int cp210x_port_remove(struct usb_serial_port *); -static void cp210x_dtr_rts(struct usb_serial_port *p, int on); +static void cp210x_dtr_rts(struct usb_serial_port *port, int on); static void cp210x_process_read_urb(struct urb *urb); static void cp210x_enable_event_mode(struct usb_serial_port *port); static void cp210x_disable_event_mode(struct usb_serial_port *port); @@ -267,7 +264,6 @@ enum cp210x_event_state { struct cp210x_port_private { u8 bInterfaceNumber; - bool has_swapped_line_ctl; bool event_mode; enum cp210x_event_state event_state; u8 lsr; @@ -559,14 +555,8 @@ static int cp210x_read_reg_block(struct usb_serial_port *port, u8 req, int result; dmabuf = kmalloc(bufsize, GFP_KERNEL); - if (!dmabuf) { - /* - * FIXME Some callers don't bother to check for error, - * at least give them consistent junk until they are fixed - */ - memset(buf, 0, bufsize); + if (!dmabuf) return -ENOMEM; - } result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), req, REQTYPE_INTERFACE_TO_HOST, 0, @@ -580,12 +570,6 @@ static int cp210x_read_reg_block(struct usb_serial_port *port, u8 req, req, bufsize, result); if (result >= 0) result = -EIO; - - /* - * FIXME Some callers don't bother to check for error, - * at least give them consistent junk until they are fixed - */ - memset(buf, 0, bufsize); } kfree(dmabuf); @@ -594,46 +578,6 @@ static int cp210x_read_reg_block(struct usb_serial_port *port, u8 req, } /* - * Reads any 32-bit CP210X_ register identified by req. - */ -static int cp210x_read_u32_reg(struct usb_serial_port *port, u8 req, u32 *val) -{ - __le32 le32_val; - int err; - - err = cp210x_read_reg_block(port, req, &le32_val, sizeof(le32_val)); - if (err) { - /* - * FIXME Some callers don't bother to check for error, - * at least give them consistent junk until they are fixed - */ - *val = 0; - return err; - } - - *val = le32_to_cpu(le32_val); - - return 0; -} - -/* - * Reads any 16-bit CP210X_ register identified by req. - */ -static int cp210x_read_u16_reg(struct usb_serial_port *port, u8 req, u16 *val) -{ - __le16 le16_val; - int err; - - err = cp210x_read_reg_block(port, req, &le16_val, sizeof(le16_val)); - if (err) - return err; - - *val = le16_to_cpu(le16_val); - - return 0; -} - -/* * Reads any 8-bit CP210X_ register identified by req. */ static int cp210x_read_u8_reg(struct usb_serial_port *port, u8 req, u8 *val) @@ -780,59 +724,6 @@ static int cp210x_write_vendor_block(struct usb_serial *serial, u8 type, } #endif -/* - * Detect CP2108 GET_LINE_CTL bug and activate workaround. - * Write a known good value 0x800, read it back. - * If it comes back swapped the bug is detected. - * Preserve the original register value. - */ -static int cp210x_detect_swapped_line_ctl(struct usb_serial_port *port) -{ - struct cp210x_port_private *port_priv = usb_get_serial_port_data(port); - u16 line_ctl_save; - u16 line_ctl_test; - int err; - - err = cp210x_read_u16_reg(port, CP210X_GET_LINE_CTL, &line_ctl_save); - if (err) - return err; - - err = cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, 0x800); - if (err) - return err; - - err = cp210x_read_u16_reg(port, CP210X_GET_LINE_CTL, &line_ctl_test); - if (err) - return err; - - if (line_ctl_test == 8) { - port_priv->has_swapped_line_ctl = true; - line_ctl_save = swab16(line_ctl_save); - } - - return cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, line_ctl_save); -} - -/* - * Must always be called instead of cp210x_read_u16_reg(CP210X_GET_LINE_CTL) - * to workaround cp2108 bug and get correct value. - */ -static int cp210x_get_line_ctl(struct usb_serial_port *port, u16 *ctl) -{ - struct cp210x_port_private *port_priv = usb_get_serial_port_data(port); - int err; - - err = cp210x_read_u16_reg(port, CP210X_GET_LINE_CTL, ctl); - if (err) - return err; - - /* Workaround swapped bytes in 16-bit value from CP210X_GET_LINE_CTL */ - if (port_priv->has_swapped_line_ctl) - *ctl = swab16(*ctl); - - return 0; -} - static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) { struct cp210x_port_private *port_priv = usb_get_serial_port_data(port); @@ -844,16 +735,8 @@ static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) return result; } - /* Configure the termios structure */ - cp210x_get_termios(tty, port); - - if (tty) { - /* The baud rate must be initialised on cp2104 */ - cp210x_change_speed(tty, port, NULL); - - if (I_INPCK(tty)) - cp210x_enable_event_mode(port); - } + if (tty) + cp210x_set_termios(tty, port, NULL); result = usb_serial_generic_open(tty, port); if (result) @@ -1032,167 +915,6 @@ static bool cp210x_tx_empty(struct usb_serial_port *port) return !count; } -/* - * 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 { - tcflag_t 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, - tcflag_t *cflagp, unsigned int *baudp) -{ - struct device *dev = &port->dev; - tcflag_t cflag; - struct cp210x_flow_ctl flow_ctl; - u32 baud; - u16 bits; - u32 ctl_hs; - u32 flow_repl; - - cp210x_read_u32_reg(port, CP210X_GET_BAUDRATE, &baud); - - dev_dbg(dev, "%s - baud rate = %d\n", __func__, baud); - *baudp = baud; - - cflag = *cflagp; - - cp210x_get_line_ctl(port, &bits); - cflag &= ~CSIZE; - switch (bits & BITS_DATA_MASK) { - case BITS_DATA_5: - dev_dbg(dev, "%s - data bits = 5\n", __func__); - cflag |= CS5; - break; - case BITS_DATA_6: - dev_dbg(dev, "%s - data bits = 6\n", __func__); - cflag |= CS6; - break; - case BITS_DATA_7: - dev_dbg(dev, "%s - data bits = 7\n", __func__); - cflag |= CS7; - break; - case BITS_DATA_8: - dev_dbg(dev, "%s - data bits = 8\n", __func__); - cflag |= CS8; - break; - case BITS_DATA_9: - dev_dbg(dev, "%s - data bits = 9 (not supported, using 8 data bits)\n", __func__); - cflag |= CS8; - bits &= ~BITS_DATA_MASK; - bits |= BITS_DATA_8; - cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits); - break; - default: - dev_dbg(dev, "%s - Unknown number of data bits, using 8\n", __func__); - cflag |= CS8; - bits &= ~BITS_DATA_MASK; - bits |= BITS_DATA_8; - cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits); - break; - } - - switch (bits & BITS_PARITY_MASK) { - case BITS_PARITY_NONE: - dev_dbg(dev, "%s - parity = NONE\n", __func__); - cflag &= ~PARENB; - break; - case BITS_PARITY_ODD: - dev_dbg(dev, "%s - parity = ODD\n", __func__); - cflag |= (PARENB|PARODD); - break; - case BITS_PARITY_EVEN: - dev_dbg(dev, "%s - parity = EVEN\n", __func__); - cflag &= ~PARODD; - cflag |= PARENB; - break; - case BITS_PARITY_MARK: - dev_dbg(dev, "%s - parity = MARK\n", __func__); - cflag |= (PARENB|PARODD|CMSPAR); - break; - case BITS_PARITY_SPACE: - dev_dbg(dev, "%s - parity = SPACE\n", __func__); - cflag &= ~PARODD; - cflag |= (PARENB|CMSPAR); - break; - default: - dev_dbg(dev, "%s - Unknown parity mode, disabling parity\n", __func__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits); - break; - } - - cflag &= ~CSTOPB; - switch (bits & BITS_STOP_MASK) { - case BITS_STOP_1: - dev_dbg(dev, "%s - stop bits = 1\n", __func__); - break; - case BITS_STOP_1_5: - dev_dbg(dev, "%s - stop bits = 1.5 (not supported, using 1 stop bit)\n", __func__); - bits &= ~BITS_STOP_MASK; - cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits); - break; - case BITS_STOP_2: - dev_dbg(dev, "%s - stop bits = 2\n", __func__); - cflag |= CSTOPB; - break; - default: - dev_dbg(dev, "%s - Unknown number of stop bits, using 1 stop bit\n", __func__); - bits &= ~BITS_STOP_MASK; - cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits); - break; - } - - cp210x_read_reg_block(port, CP210X_GET_FLOW, &flow_ctl, - sizeof(flow_ctl)); - ctl_hs = le32_to_cpu(flow_ctl.ulControlHandshake); - if (ctl_hs & CP210X_SERIAL_CTS_HANDSHAKE) { - dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__); - /* - * When the port is closed, the CP210x hardware disables - * auto-RTS and RTS is deasserted but it leaves auto-CTS when - * in hardware flow control mode. When re-opening the port, if - * auto-CTS is enabled on the cp210x, then auto-RTS must be - * re-enabled in the driver. - */ - flow_repl = le32_to_cpu(flow_ctl.ulFlowReplace); - flow_repl &= ~CP210X_SERIAL_RTS_MASK; - flow_repl |= CP210X_SERIAL_RTS_SHIFT(CP210X_SERIAL_RTS_FLOW_CTL); - flow_ctl.ulFlowReplace = cpu_to_le32(flow_repl); - cp210x_write_reg_block(port, - CP210X_SET_FLOW, - &flow_ctl, - sizeof(flow_ctl)); - - cflag |= CRTSCTS; - } else { - dev_dbg(dev, "%s - flow control = NONE\n", __func__); - cflag &= ~CRTSCTS; - } - - *cflagp = cflag; -} - struct cp210x_rate { speed_t rate; speed_t high; @@ -1352,127 +1074,121 @@ static void cp210x_disable_event_mode(struct usb_serial_port *port) port_priv->event_mode = false; } +static bool cp210x_termios_change(const struct ktermios *a, const struct ktermios *b) +{ + bool iflag_change; + + iflag_change = ((a->c_iflag ^ b->c_iflag) & INPCK); + + return tty_termios_hw_change(a, b) || iflag_change; +} + +static void cp210x_set_flow_control(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) +{ + struct cp210x_flow_ctl flow_ctl; + u32 flow_repl; + u32 ctl_hs; + int ret; + + if (old_termios && C_CRTSCTS(tty) == (old_termios->c_cflag & CRTSCTS)) + return; + + ret = cp210x_read_reg_block(port, CP210X_GET_FLOW, &flow_ctl, + sizeof(flow_ctl)); + if (ret) + return; + + ctl_hs = le32_to_cpu(flow_ctl.ulControlHandshake); + flow_repl = le32_to_cpu(flow_ctl.ulFlowReplace); + + ctl_hs &= ~CP210X_SERIAL_DSR_HANDSHAKE; + ctl_hs &= ~CP210X_SERIAL_DCD_HANDSHAKE; + ctl_hs &= ~CP210X_SERIAL_DSR_SENSITIVITY; + ctl_hs &= ~CP210X_SERIAL_DTR_MASK; + ctl_hs |= CP210X_SERIAL_DTR_SHIFT(CP210X_SERIAL_DTR_ACTIVE); + + if (C_CRTSCTS(tty)) { + ctl_hs |= CP210X_SERIAL_CTS_HANDSHAKE; + flow_repl &= ~CP210X_SERIAL_RTS_MASK; + flow_repl |= CP210X_SERIAL_RTS_SHIFT(CP210X_SERIAL_RTS_FLOW_CTL); + } else { + ctl_hs &= ~CP210X_SERIAL_CTS_HANDSHAKE; + flow_repl &= ~CP210X_SERIAL_RTS_MASK; + flow_repl |= CP210X_SERIAL_RTS_SHIFT(CP210X_SERIAL_RTS_ACTIVE); + } + + dev_dbg(&port->dev, "%s - ulControlHandshake=0x%08x, ulFlowReplace=0x%08x\n", + __func__, ctl_hs, flow_repl); + + flow_ctl.ulControlHandshake = cpu_to_le32(ctl_hs); + flow_ctl.ulFlowReplace = cpu_to_le32(flow_repl); + + cp210x_write_reg_block(port, CP210X_SET_FLOW, &flow_ctl, + sizeof(flow_ctl)); +} + static void cp210x_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { - struct device *dev = &port->dev; - unsigned int cflag, old_cflag; + struct cp210x_serial_private *priv = usb_get_serial_data(port->serial); u16 bits; + int ret; - cflag = tty->termios.c_cflag; - old_cflag = old_termios->c_cflag; + if (old_termios && !cp210x_termios_change(&tty->termios, old_termios)) + return; - if (tty->termios.c_ospeed != old_termios->c_ospeed) + if (!old_termios || tty->termios.c_ospeed != old_termios->c_ospeed) cp210x_change_speed(tty, port, old_termios); - /* If the number of data bits is to be updated */ - if ((cflag & CSIZE) != (old_cflag & CSIZE)) { - cp210x_get_line_ctl(port, &bits); - bits &= ~BITS_DATA_MASK; - switch (cflag & CSIZE) { - case CS5: - bits |= BITS_DATA_5; - dev_dbg(dev, "%s - data bits = 5\n", __func__); - break; - case CS6: - bits |= BITS_DATA_6; - dev_dbg(dev, "%s - data bits = 6\n", __func__); - break; - case CS7: - bits |= BITS_DATA_7; - dev_dbg(dev, "%s - data bits = 7\n", __func__); - break; - case CS8: - default: - bits |= BITS_DATA_8; - dev_dbg(dev, "%s - data bits = 8\n", __func__); - break; - } - if (cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits)) - dev_dbg(dev, "Number of data bits requested not supported by device\n"); + /* CP2101 only supports CS8, 1 stop bit and non-stick parity. */ + if (priv->partnum == CP210X_PARTNUM_CP2101) { + tty->termios.c_cflag &= ~(CSIZE | CSTOPB | CMSPAR); + tty->termios.c_cflag |= CS8; } - if ((cflag & (PARENB|PARODD|CMSPAR)) != - (old_cflag & (PARENB|PARODD|CMSPAR))) { - cp210x_get_line_ctl(port, &bits); - bits &= ~BITS_PARITY_MASK; - if (cflag & PARENB) { - if (cflag & CMSPAR) { - if (cflag & PARODD) { - bits |= BITS_PARITY_MARK; - dev_dbg(dev, "%s - parity = MARK\n", __func__); - } else { - bits |= BITS_PARITY_SPACE; - dev_dbg(dev, "%s - parity = SPACE\n", __func__); - } - } else { - if (cflag & PARODD) { - bits |= BITS_PARITY_ODD; - dev_dbg(dev, "%s - parity = ODD\n", __func__); - } else { - bits |= BITS_PARITY_EVEN; - dev_dbg(dev, "%s - parity = EVEN\n", __func__); - } - } - } - if (cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits)) - dev_dbg(dev, "Parity mode not supported by device\n"); + bits = 0; + + switch (C_CSIZE(tty)) { + case CS5: + bits |= BITS_DATA_5; + break; + case CS6: + bits |= BITS_DATA_6; + break; + case CS7: + bits |= BITS_DATA_7; + break; + case CS8: + default: + bits |= BITS_DATA_8; + break; } - if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) { - cp210x_get_line_ctl(port, &bits); - bits &= ~BITS_STOP_MASK; - if (cflag & CSTOPB) { - bits |= BITS_STOP_2; - dev_dbg(dev, "%s - stop bits = 2\n", __func__); + if (C_PARENB(tty)) { + if (C_CMSPAR(tty)) { + if (C_PARODD(tty)) + bits |= BITS_PARITY_MARK; + else + bits |= BITS_PARITY_SPACE; } else { - bits |= BITS_STOP_1; - dev_dbg(dev, "%s - stop bits = 1\n", __func__); + if (C_PARODD(tty)) + bits |= BITS_PARITY_ODD; + else + bits |= BITS_PARITY_EVEN; } - if (cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits)) - dev_dbg(dev, "Number of stop bits requested not supported by device\n"); } - if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) { - struct cp210x_flow_ctl flow_ctl; - u32 ctl_hs; - u32 flow_repl; - - cp210x_read_reg_block(port, CP210X_GET_FLOW, &flow_ctl, - sizeof(flow_ctl)); - ctl_hs = le32_to_cpu(flow_ctl.ulControlHandshake); - flow_repl = le32_to_cpu(flow_ctl.ulFlowReplace); - dev_dbg(dev, "%s - read ulControlHandshake=0x%08x, ulFlowReplace=0x%08x\n", - __func__, ctl_hs, flow_repl); - - ctl_hs &= ~CP210X_SERIAL_DSR_HANDSHAKE; - ctl_hs &= ~CP210X_SERIAL_DCD_HANDSHAKE; - ctl_hs &= ~CP210X_SERIAL_DSR_SENSITIVITY; - ctl_hs &= ~CP210X_SERIAL_DTR_MASK; - ctl_hs |= CP210X_SERIAL_DTR_SHIFT(CP210X_SERIAL_DTR_ACTIVE); - if (cflag & CRTSCTS) { - ctl_hs |= CP210X_SERIAL_CTS_HANDSHAKE; - - flow_repl &= ~CP210X_SERIAL_RTS_MASK; - flow_repl |= CP210X_SERIAL_RTS_SHIFT( - CP210X_SERIAL_RTS_FLOW_CTL); - dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__); - } else { - ctl_hs &= ~CP210X_SERIAL_CTS_HANDSHAKE; + if (C_CSTOPB(tty)) + bits |= BITS_STOP_2; + else + bits |= BITS_STOP_1; - flow_repl &= ~CP210X_SERIAL_RTS_MASK; - flow_repl |= CP210X_SERIAL_RTS_SHIFT( - CP210X_SERIAL_RTS_ACTIVE); - dev_dbg(dev, "%s - flow control = NONE\n", __func__); - } + ret = cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits); + if (ret) + dev_err(&port->dev, "failed to set line control: %d\n", ret); - dev_dbg(dev, "%s - write ulControlHandshake=0x%08x, ulFlowReplace=0x%08x\n", - __func__, ctl_hs, flow_repl); - flow_ctl.ulControlHandshake = cpu_to_le32(ctl_hs); - flow_ctl.ulFlowReplace = cpu_to_le32(flow_repl); - cp210x_write_reg_block(port, CP210X_SET_FLOW, &flow_ctl, - sizeof(flow_ctl)); - } + cp210x_set_flow_control(tty, port, old_termios); /* * Enable event-insertion mode only if input parity checking is @@ -1518,12 +1234,12 @@ static int cp210x_tiocmset_port(struct usb_serial_port *port, return cp210x_write_u16_reg(port, CP210X_SET_MHS, control); } -static void cp210x_dtr_rts(struct usb_serial_port *p, int on) +static void cp210x_dtr_rts(struct usb_serial_port *port, int on) { if (on) - cp210x_tiocmset_port(p, TIOCM_DTR|TIOCM_RTS, 0); + cp210x_tiocmset_port(port, TIOCM_DTR | TIOCM_RTS, 0); else - cp210x_tiocmset_port(p, 0, TIOCM_DTR|TIOCM_RTS); + cp210x_tiocmset_port(port, 0, TIOCM_DTR | TIOCM_RTS); } static int cp210x_tiocmget(struct tty_struct *tty) @@ -1986,7 +1702,6 @@ static int cp210x_port_probe(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct cp210x_port_private *port_priv; - int ret; port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL); if (!port_priv) @@ -1996,12 +1711,6 @@ static int cp210x_port_probe(struct usb_serial_port *port) usb_set_serial_port_data(port, port_priv); - ret = cp210x_detect_swapped_line_ctl(port); - if (ret) { - kfree(port_priv); - return ret; - } - return 0; } diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 91055a191995..0ecd5316d85f 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -19,7 +19,6 @@ #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/spinlock.h> -#include <linux/workqueue.h> #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/wait.h> @@ -198,14 +197,13 @@ struct digi_port { int dp_throttle_restart; wait_queue_head_t dp_flush_wait; wait_queue_head_t dp_close_wait; /* wait queue for close */ - struct work_struct dp_wakeup_work; + wait_queue_head_t write_wait; struct usb_serial_port *dp_port; }; /* Local Function Declarations */ -static void digi_wakeup_write_lock(struct work_struct *work); static int digi_write_oob_command(struct usb_serial_port *port, unsigned char *buf, int count, int interruptible); static int digi_write_inb_command(struct usb_serial_port *port, @@ -356,26 +354,6 @@ __releases(lock) return timeout; } - -/* - * Digi Wakeup Write - * - * Wake up port, line discipline, and tty processes sleeping - * on writes. - */ - -static void digi_wakeup_write_lock(struct work_struct *work) -{ - struct digi_port *priv = - container_of(work, struct digi_port, dp_wakeup_work); - struct usb_serial_port *port = priv->dp_port; - unsigned long flags; - - spin_lock_irqsave(&priv->dp_port_lock, flags); - tty_port_tty_wakeup(&port->port); - spin_unlock_irqrestore(&priv->dp_port_lock, flags); -} - /* * Digi Write OOB Command * @@ -404,7 +382,7 @@ static int digi_write_oob_command(struct usb_serial_port *port, while (count > 0) { while (oob_priv->dp_write_urb_in_use) { cond_wait_interruptible_timeout_irqrestore( - &oob_port->write_wait, DIGI_RETRY_TIMEOUT, + &oob_priv->write_wait, DIGI_RETRY_TIMEOUT, &oob_priv->dp_port_lock, flags); if (interruptible && signal_pending(current)) return -EINTR; @@ -467,7 +445,7 @@ static int digi_write_inb_command(struct usb_serial_port *port, while (priv->dp_write_urb_in_use && time_before(jiffies, timeout)) { cond_wait_interruptible_timeout_irqrestore( - &port->write_wait, DIGI_RETRY_TIMEOUT, + &priv->write_wait, DIGI_RETRY_TIMEOUT, &priv->dp_port_lock, flags); if (signal_pending(current)) return -EINTR; @@ -546,7 +524,7 @@ static int digi_set_modem_signals(struct usb_serial_port *port, while (oob_priv->dp_write_urb_in_use) { spin_unlock(&port_priv->dp_port_lock); cond_wait_interruptible_timeout_irqrestore( - &oob_port->write_wait, DIGI_RETRY_TIMEOUT, + &oob_priv->write_wait, DIGI_RETRY_TIMEOUT, &oob_priv->dp_port_lock, flags); if (interruptible && signal_pending(current)) return -EINTR; @@ -911,9 +889,8 @@ static int digi_write(struct tty_struct *tty, struct usb_serial_port *port, unsigned char *data = port->write_urb->transfer_buffer; unsigned long flags = 0; - dev_dbg(&port->dev, - "digi_write: TOP: port=%d, count=%d, in_interrupt=%ld\n", - priv->dp_port_num, count, in_interrupt()); + dev_dbg(&port->dev, "digi_write: TOP: port=%d, count=%d\n", + priv->dp_port_num, count); /* copy user data (which can sleep) before getting spin lock */ count = min(count, port->bulk_out_size-2); @@ -986,6 +963,7 @@ static void digi_write_bulk_callback(struct urb *urb) unsigned long flags; int ret = 0; int status = urb->status; + bool wakeup; /* port and serial sanity check */ if (port == NULL || (priv = usb_get_serial_port_data(port)) == NULL) { @@ -1006,12 +984,13 @@ static void digi_write_bulk_callback(struct urb *urb) dev_dbg(&port->dev, "digi_write_bulk_callback: oob callback\n"); spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_write_urb_in_use = 0; - wake_up_interruptible(&port->write_wait); + wake_up_interruptible(&priv->write_wait); spin_unlock_irqrestore(&priv->dp_port_lock, flags); return; } /* try to send any buffered data on this port */ + wakeup = true; spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_write_urb_in_use = 0; if (priv->dp_out_buf_len > 0) { @@ -1027,19 +1006,18 @@ static void digi_write_bulk_callback(struct urb *urb) if (ret == 0) { priv->dp_write_urb_in_use = 1; priv->dp_out_buf_len = 0; + wakeup = false; } } - /* wake up processes sleeping on writes immediately */ - tty_port_tty_wakeup(&port->port); - /* also queue up a wakeup at scheduler time, in case we */ - /* lost the race in write_chan(). */ - schedule_work(&priv->dp_wakeup_work); - spin_unlock_irqrestore(&priv->dp_port_lock, flags); + if (ret && ret != -EPERM) dev_err_console(port, "%s: usb_submit_urb failed, ret=%d, port=%d\n", __func__, ret, priv->dp_port_num); + + if (wakeup) + tty_port_tty_wakeup(&port->port); } static int digi_write_room(struct tty_struct *tty) @@ -1239,11 +1217,9 @@ static int digi_port_init(struct usb_serial_port *port, unsigned port_num) init_waitqueue_head(&priv->dp_transmit_idle_wait); init_waitqueue_head(&priv->dp_flush_wait); init_waitqueue_head(&priv->dp_close_wait); - INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock); + init_waitqueue_head(&priv->write_wait); priv->dp_port = port; - init_waitqueue_head(&port->write_wait); - usb_set_serial_port_data(port, priv); return 0; @@ -1508,13 +1484,14 @@ static int digi_read_oob_callback(struct urb *urb) rts = C_CRTSCTS(tty); if (tty && opcode == DIGI_CMD_READ_INPUT_SIGNALS) { + bool wakeup = false; + spin_lock_irqsave(&priv->dp_port_lock, flags); /* convert from digi flags to termiox flags */ if (val & DIGI_READ_INPUT_SIGNALS_CTS) { priv->dp_modem_signals |= TIOCM_CTS; - /* port must be open to use tty struct */ if (rts) - tty_port_tty_wakeup(&port->port); + wakeup = true; } else { priv->dp_modem_signals &= ~TIOCM_CTS; /* port must be open to use tty struct */ @@ -1533,6 +1510,9 @@ static int digi_read_oob_callback(struct urb *urb) priv->dp_modem_signals &= ~TIOCM_CD; spin_unlock_irqrestore(&priv->dp_port_lock, flags); + + if (wakeup) + tty_port_tty_wakeup(&port->port); } else if (opcode == DIGI_CMD_TRANSMIT_IDLE) { spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_transmit_idle = 1; diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index e0f4c3d9649c..94398f89e600 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1841,9 + |