Commit Graph

151 Commits

Author SHA1 Message Date
Olli Salonen 367b160fe4 USB: serial: cp210x: add another USB ID for Qivicon ZigBee stick
There are two versions of the Qivicon Zigbee stick in circulation. This
adds the second USB ID to the cp210x driver.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-07-04 15:44:07 +02:00
Johan Hovold 24160628a3 USB: serial: cp210x: add CESINEL device ids
Add device ids for CESINEL products.

Reported-by: Carlos Barcala Lara <cabl@cesinel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-06-18 11:25:09 +02:00
Karoly Pados 2f83982338 USB: serial: cp210x: add Silicon Labs IDs for Windows Update
Silicon Labs defines alternative VID/PID pairs for some chips that when
used will automatically install drivers for Windows users without manual
intervention. Unfortunately, these IDs are not recognized by the Linux
module, so using these IDs improves user experience on one platform but
degrades it on Linux. This patch addresses this problem.

Signed-off-by: Karoly Pados <pados@pados.hu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-06-18 09:37:10 +02:00
Kyle Roeschley 1e23aace21 USB: serial: cp210x: add ID for NI USB serial console
Added the USB VID and PID for the USB serial console on some National
Instruments devices.

Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-04-16 11:19:11 +02:00
Johan Hovold 1f1e82f74c USB: serial: cp210x: add ELDAT Easywave RX09 id
Add device id for ELDAT Easywave RX09 tranceiver.

Reported-by: Jan Jansen <nattelip@hotmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-23 12:17:40 +01:00
Christian Holl d14ac576d1 USB: serial: cp210x: add new device ID ELV ALC 8xxx
This adds the ELV ALC 8xxx Battery Charging device
to the list of USB IDs of drivers/usb/serial/cp210x.c

Signed-off-by: Christian Holl <cyborgx1@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-01-04 15:52:06 +01:00
Diego Elio Pettenò 4307413256 USB: serial: cp210x: add IDs for LifeScan OneTouch Verio IQ
Add IDs for the OneTouch Verio IQ that comes with an embedded
USB-to-serial converter.

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-01-02 10:47:29 +01:00
Johan Hovold 627cfa89b1 USB: serial: fix module-license macros
Several GPL-2.0 drivers used "GPL" rather than "GPL v2" in their
MODULE_LICENSE macros; fix the macros to match the licenses.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04 11:58:00 +01:00
Greg Kroah-Hartman 6ca98bc284 USB: serial: Remove redundant license text
Now that the SPDX tag is in all USB files, that identifies the license
in a specific and legally-defined manner.  So the extra GPL text wording
can be removed as it is no longer needed at all.

This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text.  And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.

No copyright headers or other non-license-description text was removed.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04 11:55:38 +01:00
Greg Kroah-Hartman 5fd54ace47 USB: add SPDX identifiers to all remaining files in drivers/usb/
It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Update the drivers/usb/ and include/linux/usb* files with the correct
SPDX license identifier based on the license text in the file itself.
The SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04 11:48:02 +01:00
Andreas Engel c496ad835c USB: serial: cp210x: add support for ELV TFD500
Add the USB device id for the ELV TFD500 data logger.

Signed-off-by: Andreas Engel <anen-nospam@gmx.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2017-09-19 09:42:28 +02:00
Sebastian Frei 7eac35ea29 USB: serial: cp210x: fix partnum regression
When adding GPIO support for the cp2105, the mentioned commit by Martyn
Welch introduced a query for the part number of the chip. Unfortunately
the driver aborts probing when this query fails, so currently the driver
can not be used with chips not supporting this query.
I have a data cable for Siemens mobile phones (ID 10ab:10c5) where this
is the case.
With this patch the driver can be bound even if the part number can not
be queried.

Fixes: cf5276ce78 ("USB: serial: cp210x: Adding GPIO support for CP2105")
Signed-off-by: Sebastian Frei <dr.nop@gmx.net>
[ johan: amend commit message; shorten error message and demote to
         warning; drop unnecessary move of usb_set_serial_data() ]
Cc: stable <stable@vger.kernel.org>	# 4.9
Signed-off-by: Johan Hovold <johan@kernel.org>
2017-09-19 09:37:48 +02:00
Stefan Triller 9585e340db USB: serial: cp210x: add support for Qivicon USB ZigBee dongle
The German Telekom offers a ZigBee USB Stick under the brand name Qivicon
for their SmartHome Home Base in its 1. Generation. The productId is not
known by the according kernel module, this patch adds support for it.

Signed-off-by: Stefan Triller <github@stefantriller.de>
Reviewed-by: Frans Klaver <fransklaver@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2017-07-17 12:40:56 +02:00
Jeremie Rapin fd90f73a99 USB: serial: cp210x: add ID for CEL EM3588 USB ZigBee stick
Added the USB serial device ID for the CEL ZigBee EM3588
radio stick.

Signed-off-by: Jeremie Rapin <rapinj@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-28 20:14:00 +02:00
Linus Torvalds 8ff546b801 USB/PHY patches for 4.11-rc1
Here is the big USB and PHY driver updates for 4.11-rc1.
 
 Nothing major, just the normal amount of churn in the usb gadget and dwc
 and xhci controllers, new device ids, new phy drivers, a new usb-serial
 driver, and a few other minor changes in different USB drivers.
 
 All have been in linux-next for a long time with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big USB and PHY driver updates for 4.11-rc1.

  Nothing major, just the normal amount of churn in the usb gadget and
  dwc and xhci controllers, new device ids, new phy drivers, a new
  usb-serial driver, and a few other minor changes in different USB
  drivers.

  All have been in linux-next for a long time with no reported issues"

* tag 'usb-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (265 commits)
  usb: cdc-wdm: remove logically dead code
  USB: serial: keyspan: drop header file
  USB: serial: io_edgeport: drop io-tables header file
  usb: musb: add code comment for clarification
  usb: misc: add USB251xB/xBi Hi-Speed Hub Controller Driver
  usb: misc: usbtest: remove redundant check on retval < 0
  USB: serial: upd78f0730: sort device ids
  USB: serial: upd78f0730: add ID for EVAL-ADXL362Z
  ohci-hub: fix typo in dbg_port macro
  usb: musb: dsps: Manage CPPI 4.1 DMA interrupt in DSPS
  usb: musb: tusb6010: Clean up tusb_omap_dma structure
  usb: musb: cppi_dma: Clean up cppi41_dma_controller structure
  usb: musb: cppi_dma: Clean up cppi structure
  usb: musb: cppi41: Detect aborted transfers in cppi41_dma_callback()
  usb: musb: dma: Add a DMA completion platform callback
  drivers: usb: usbip: Add missing break statement to switch
  usb: mtu3: remove redundant dev_err call in get_ssusb_rscs()
  USB: serial: mos7840: fix another NULL-deref at open
  USB: serial: console: clean up sanity checks
  USB: serial: console: fix uninitialised spinlock
  ...
2017-02-22 11:15:59 -08:00
Ken Lin 9a593656de USB: serial: cp210x: add new IDs for GE Bx50v3 boards
Add new USB IDs for cp2104/5 devices on Bx50v3 boards due to the design
change.

Signed-off-by: Ken Lin <yungching0725@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2017-02-06 10:33:28 +01:00
Mika Westerberg 2956b5d94a pinctrl / gpio: Introduce .set_config() callback for GPIO chips
Currently we already have two pin configuration related callbacks
available for GPIO chips .set_single_ended() and .set_debounce(). In
future we expect to have even more, which does not scale well if we need
to add yet another callback to the GPIO chip structure for each possible
configuration parameter.

Better solution is to reuse what we already have available in the
generic pinconf.

To support this, we introduce a new .set_config() callback for GPIO
chips. The callback takes a single packed pin configuration value as
parameter. This can then be extended easily beyond what is currently
supported by just adding new types to the generic pinconf enum.

If the GPIO driver is backed up by a pinctrl driver the GPIO driver can
just assign gpiochip_generic_config() (introduced in this patch) to
.set_config and that will take care configuration requests are directed
to the pinctrl driver.

We then convert the existing drivers over .set_config() and finally
remove the .set_single_ended() and .set_debounce() callbacks.

Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26 15:27:37 +01:00
Greg Kroah-Hartman 66c79319f8 USB-serial updates for v4.10-rc1
These updates include a new driver for Fintek F8153x devices, support
 for the GPIO functionality on CP2105 devices, and improved support for
 CH34X devices.
 
 Included are also some clean ups and fixes for various minor issues.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for v4.10-rc1

These updates include a new driver for Fintek F8153x devices, support
for the GPIO functionality on CP2105 devices, and improved support for
CH34X devices.

Included are also some clean ups and fixes for various minor issues.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-12-01 16:12:12 +01:00
Geert Uytterhoeven 009615ab7f USB: serial: cp210x: use tcflag_t to fix incompatible pointer type
On sparc32, tcflag_t is unsigned long, unlike all other architectures:

    drivers/usb/serial/cp210x.c: In function 'cp210x_get_termios':
    drivers/usb/serial/cp210x.c:717:3: warning: passing argument 2 of 'cp210x_get_termios_port' from incompatible pointer type
       cp210x_get_termios_port(tty->driver_data,
       ^
    drivers/usb/serial/cp210x.c:35:13: note: expected 'unsigned int *' but argument is of type 'tcflag_t *'
     static void cp210x_get_termios_port(struct usb_serial_port *port,
		 ^

Consistently use tcflag_t to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-11-21 15:19:01 +01:00
Paul Jakma 2ab13292d7 USB: serial: cp210x: add ID for the Zone DPMX
The BRIM Brothers Zone DPMX is a bicycle powermeter. This ID is for the USB
serial interface in its charging dock for the control pods, via which some
settings for the pods can be modified.

Signed-off-by: Paul Jakma <paul@jakma.org>
Cc: Barry Redmond <barry@brimbrothers.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-11-16 17:09:06 +01:00
Johan Hovold 6b7271d253 USB: serial: cp210x: use bool for registered flag
Use bool rather than u8 for the gpio-chip-registered flag.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-10-24 12:00:19 +02:00
Martyn Welch cf5276ce78 USB: serial: cp210x: Adding GPIO support for CP2105
This patch adds support for the GPIO found on the CP2105. Unlike the GPIO
provided by some of the other devices supported by the cp210x driver, the
GPIO on the CP2015 is muxed on pins otherwise used for serial control
lines. The GPIO have been configured in 2 separate banks as the choice to
configure the pins for GPIO is made separately for pins shared with each
of the 2 serial ports this device provides, though the choice is made for
all pins associated with that port in one go. The choice of whether to use
the pins for GPIO or serial is made by adding configuration to a one-time
programable PROM in the chip and can not be changed at runtime. The device
defaults to GPIO.

This device supports either push-pull or open-drain modes, it doesn't
provide an explicit input mode, though the state of the GPIO can be read
when used in open-drain mode. Like with pin use, the mode is configured in
the one-time programable PROM and can't be changed at runtime.

Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-10-24 12:00:19 +02:00
Johan Hovold 0407f1ce8f USB: serial: cp210x: return -EIO on short control transfers
Return -EIO on short control transfers rather than -EPROTO which is used
for lower-level transfer errors.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-10-24 12:00:19 +02:00
Johan Hovold c2b3355920 USB: serial: cp210x: clean up CSIZE handling
CSIZE is two-bit wide and only CS5 through CS8 are possible values.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-10-24 12:00:19 +02:00
Johan Hovold de24e0a108 USB: serial: cp210x: fix tiocmget error handling
The current tiocmget implementation would fail to report errors up the
stack and instead leaked a few bits from the stack as a mask of
modem-status flags.

Fixes: 39a66b8d22 ("[PATCH] USB: CP2101 Add support for flow control")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-10-20 11:15:20 +02:00
Kyle Jones decc5360f2 USB: serial: cp210x: Add ID for a Juniper console
Signed-off-by: Kyle Jones <kyle@kf5jwc.us>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-27 12:20:17 +02:00
Muhammad Falak R Wani d6c4dc3bf4 USB: serial: cp210x: use kmemdup
Use kmemdup when some other buffer is immediately copied into allocated
region. It replaces call to allocation followed by memcpy, by a single
call to kmemdup.

Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-07-15 14:23:21 +02:00
Greg Kroah-Hartman 60d5794fe5 USB-serial updates for v4.7-rc1
These updates fixes a number of issues where resources were not properly
 released on probe errors. Included is also a fix for hardware
 flow-control disable for cp210x.
 
 Support for Moxa UPort 11x0 is added to the ti_usb_3410_5052 driver, and
 included are also some general code clean ups.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for v4.7-rc1

These updates fixes a number of issues where resources were not properly
released on probe errors. Included is also a fix for hardware
flow-control disable for cp210x.

Support for Moxa UPort 11x0 is added to the ti_usb_3410_5052 driver, and
included are also some general code clean ups.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-05-14 11:25:35 +02:00
Konstantin Shkolnyy ab5701ada2 USB: serial: cp210x: clean up CRTSCTS flag code
The CRTSCTS flag code cleared (and inconsistently) bits unrelated to
CRTSCTS functionality. It was also harder than necessary to read.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-05-05 11:48:09 +02:00
Konstantin Shkolnyy 9034389cd8 USB: serial: cp210x: get rid of magic numbers in CRTSCTS flag code
Replaced magic numbers used in the CRTSCTS flag code with symbolic names
from the chip specification.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-05-05 11:45:10 +02:00
Konstantin Shkolnyy a377f9e906 USB: serial: cp210x: fix hardware flow-control disable
A bug in the CRTSCTS handling caused RTS to alternate between

CRTSCTS=0 => "RTS is transmit active signal" and
CRTSCTS=1 => "RTS is used for receive flow control"

instead of

CRTSCTS=0 => "RTS is statically active" and
CRTSCTS=1 => "RTS is used for receive flow control"

This only happened after first having enabled CRTSCTS.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
Fixes: 39a66b8d22 ("[PATCH] USB: CP2101 Add support for flow control")
Cc: stable <stable@vger.kernel.org>
[johan: reword commit message ]
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-05-05 11:27:02 +02:00
Jasem Mutlaq 613ac23a46 USB: serial: cp210x: add Straizona Focusers device ids
Adding VID:PID for Straizona Focusers to cp210x driver.

Signed-off-by: Jasem Mutlaq <mutlaqja@ikarustech.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-04-24 11:19:06 +02:00
Mike Manning 1d377f4d69 USB: serial: cp210x: add ID for Link ECU
The Link ECU is an aftermarket ECU computer for vehicles that provides
full tuning abilities as well as datalogging and displaying capabilities
via the USB to Serial adapter built into the device.

Signed-off-by: Mike Manning <michael@bsch.com.au>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-04-24 11:06:23 +02:00
Martyn Welch cddc9434e3 USB: serial: cp210x: Adding GE Healthcare Device ID
The CP2105 is used in the GE Healthcare Remote Alarm Box, with the
Manufacturer ID of 0x1901 and Product ID of 0x0194.

Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-04-07 11:41:01 +02:00
Linus Torvalds 48d10bda1f USB patches for 4.6-rc1
Here is the big USB patchset for 4.6-rc1.
 
 The normal mess is here, gadget and xhci fixes and updates, and lots of
 other driver updates and cleanups as well.  Full details are in the
 shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB patchset for 4.6-rc1.

  The normal mess is here, gadget and xhci fixes and updates, and lots
  of other driver updates and cleanups as well.  Full details are in the
  shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (266 commits)
  USB: core: let USB device know device node
  usb: devio: Add ioctl to disallow detaching kernel USB drivers.
  usb: gadget: f_acm: Fix configfs attr name
  usb: udc: lpc32xx: remove USB PLL and USB OTG clock management
  usb: udc: lpc32xx: remove direct access to clock controller registers
  usb: udc: lpc32xx: switch to clock prepare/unprepare model
  usb: renesas_usbhs: gadget: fix giveback status code in usbhsg_pipe_disable()
  usb: gadget: renesas_usb3: Use ARCH_RENESAS
  usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma()
  usb: dwc2: Add support for Lantiq ARX and XRX SoCs
  usb: phy: generic: Handle late registration of gadget
  usb: gadget: bdc_udc: fix race condition in bdc_udc_exit()
  usb: musb: core: added missing const qualifier to musb_hdrc_platform_data::config
  usb: dwc2: Move host-specific core functions into hcd.c
  usb: dwc2: Move register save and restore functions
  usb: dwc2: Use kmem_cache_free()
  usb: dwc2: host: If using uframe scheduler, end splits better
  usb: dwc2: host: Totally redo the microframe scheduler
  usb: dwc2: host: Properly set even/odd frame
  usb: dwc2: host: Add dwc2_hcd_get_future_frame_number() call
  ...
2016-03-17 14:24:26 -07:00
Greg Kroah-Hartman ce53bfc437 USB-serial updates for v4.6-rc1
Here are some cp210x register-accessor updates and general usb-serial
 code clean ups.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for v4.6-rc1

Here are some cp210x register-accessor updates and general usb-serial
code clean ups.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-03-08 20:28:19 -08:00
Konstantin Shkolnyy 7084fa868b USB: serial: cp210x: add new access functions for large registers
cp210x_get_config and cp210x_set_config are cumbersome to use. This change
switches large register access to use new block functions. The old
functions are removed because now they become unused.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
[johan: minor style change ]
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-02-29 19:04:49 +01:00
Konstantin Shkolnyy fe1b07e99c USB: serial: cp210x: add 8-bit and 32-bit register access functions
cp210x_get_config and cp210x_set_config are cumbersome to use. This change
introduces new register access functions for 8 and 32-bit values, instead
of the above functions.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-02-29 19:04:49 +01:00
Konstantin Shkolnyy 19165b2b10 USB: serial: cp210x: add 16-bit register access functions
cp210x_get_config and cp210x_set_config are cumbersome to use. This change
introduces new register access functions for 16-bit values, instead of
the above functions.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-02-29 19:04:49 +01:00
Vittorio Alfieri 3c4c615d70 USB: cp210x: Add ID for Parrot NMEA GPS Flight Recorder
The Parrot NMEA GPS Flight Recorder is a USB composite device
consisting of hub, flash storage, and cp210x usb to serial chip.
It is an accessory to the mass-produced Parrot AR Drone 2.
The device emits standard NMEA messages which make the it compatible
with NMEA compatible software. It was tested using gpsd version 3.11-3
as an NMEA interpreter and using the official Parrot Flight Recorder.

Signed-off-by: Vittorio Alfieri <vittorio88@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-02-29 19:01:10 +01:00
Ken Lin 6627ae1938 USB: cp210x: add IDs for GE B650V3 and B850V3 boards
Add USB ID for cp2104/5 devices on GE B650v3 and B850v3 boards.

Signed-off-by: Ken Lin <ken.lin@advantech.com.tw>
Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-02-18 12:53:53 +01:00
Peter Dedecker f487c54ddd USB: cp210x: add ID for IAI USB to RS485 adaptor
Added the USB serial console device ID for IAI Corp. RCB-CV-USB
USB to RS485 adaptor.

Signed-off-by: Peter Dedecker <peter.dedecker@hotmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2016-01-25 10:57:55 +01:00
Greg Kroah-Hartman 48346892ff USB-serial fixes for v4.4-rc8
Here's another device id for cp210x.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial fixes for v4.4-rc8

Here's another device id for cp210x.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-01-03 15:19:12 -08:00
Greg Kroah-Hartman b40e9dc0b4 USB-serial updates for v4.5-rc1
These updates add support for Moxa UPort 1100-series devices through a
 new mxu11x0 driver.
 
 The cp210x driver gains proper support for cp2108 devices by working
 around a couple of firmware bugs, and generic wait-until-sent support
 (e.g. for tcdrain) is also added.
 
 Included are also some general clean ups.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for v4.5-rc1

These updates add support for Moxa UPort 1100-series devices through a
new mxu11x0 driver.

The cp210x driver gains proper support for cp2108 devices by working
around a couple of firmware bugs, and generic wait-until-sent support
(e.g. for tcdrain) is also added.

Included are also some general clean ups.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-01-03 15:15:26 -08:00
Oliver Freyermuth f7d7f59ab1 USB: cp210x: add ID for ELV Marble Sound Board 1
Add the USB device ID for ELV Marble Sound Board 1.

Signed-off-by: Oliver Freyermuth <o.freyermuth@googlemail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-28 19:07:35 +01:00
Konstantin Shkolnyy 6f923a0134 USB: cp210x: add tx_empty()
Added tx_empty callback needed for generic wait-until-sent support.
Without this function, when the port is closed usbserial can't know that
there are still data in the chip's transmit FIFO. The chip gets disabled
and untransmitted data lost. When the actual byte count is reported by
tx-empty the close can be delayed until all data are sent.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
[johan: modify tx_empty error handling ]
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-11-26 09:10:51 +01:00
Konstantin Shkolnyy 7c90e610b6 USB: cp210x: Remove CP2110 ID from compatibility list
CP2110 ID (0x10c4, 0xea80) doesn't belong here because it's a HID
and completely different from CP210x devices.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-11-23 10:31:05 +01:00
Konstantin Shkolnyy d0bf1ff0ae USB: cp210x: work around cp2108 GET_LINE_CTL bug
Add helper to access line-control register in order to work around a
cp2108 GET_LINE_CTL bug.

cp2108 GET_LINE_CTL returns the 16-bit value with the 2 bytes swapped.
However, SET_LINE_CTL functions properly. When the driver tries to modify
the register, it reads it, modifies some bits and writes back. Because the
read bytes were swapped, this often results in an invalid value to be
written. In turn, this causes cp2108 respond with a stall. The stall
sometimes doesn't clear properly and cp2108 starts responding to following
valid commands also with stalls, effectively failing.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
[johan: amend commit message, modify probe error handling ]
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-11-16 12:36:44 +01:00
Konstantin Shkolnyy e2ae67a3b5 USB: cp210x: relocate private data from USB interface to port
This change is preparation for implementing a cp2108 bug workaround.
The workaround requires storing some private data. Right now the data is
attached to the USB interface and allocated in the attach() callback.
The bug detection requires USB I/O which is done easier from port_probe()
callback rather than attach(). Since the USB access functions take port
as a parameter, and since the private data is used exclusively by these
functions, it can be allocated in port_probe(). Also, all cp210x devices
have exactly 1 port per USB iterface, so moving private data from the USB
interface to port is trivial.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-11-16 12:22:04 +01:00
Konstantin Shkolnyy ebfb319bb6 USB: cp210x: flush device queues at close
Flush all device queues at close in order to work around a cp2108 Tx
queue bug.

Occasionally, writing data and immediately closing the port makes cp2108
stop responding. The device has to be unplugged to clear the error.
The failure is induced by shutting down the device while its Tx queue
still has unsent data. This condition is avoided by issuing PURGE command
from the close() callback.

This change is applied to all cp210x devices. Clearing internal queues on
close is generally good.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
[johan: amend commit message ]
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-11-16 12:17:08 +01:00