This covers most of the suggested changes. I'm not sure yet how we
want to expose the properties through X, so changes regarding that
haven't been folded in.

Jason

---
Day xee-nee-svsh duu-'ushtlh-ts'it;
nuu-wee-ya' duu-xan' 'vm-nvshtlh-ts'it.
Huu-chan xuu naa~-gha.



On Wed, Jan 25, 2012 at 1:54 PM, Jason Gerecke <[email protected]> wrote:
> Signed-off-by: Jason Gerecke <[email protected]>
> ---
> Changes from v2:
>    Deduplicate storing in sysfs
>    Deduplicate fd closing
>    Deduplicate LED setting by looping through all groups
>    Change wording of xsetwacom property description
>    Consolidate led{0,1}_status variables into led_status array
>    Stop udev device leak
>    Change variables fd_sysfs{0,1} to an array fd_sysfs[2]
>    Remove superflous function name
>
>  include/wacom-properties.h |    3 ++
>  man/xsetwacom.man          |    7 +++++
>  src/wcmCommon.c            |    4 ++-
>  src/wcmConfig.c            |   55 
> +++++++++++++++++++++++++++++++++++++++++++-
>  src/wcmXCommand.c          |   32 ++++++++++++++++++++++++-
>  src/xf86Wacom.c            |    9 ++++++-
>  src/xf86WacomDefs.h        |    4 ++-
>  tools/xsetwacom.c          |   18 +++++++++++++-
>  8 files changed, 126 insertions(+), 6 deletions(-)
>
> diff --git a/include/wacom-properties.h b/include/wacom-properties.h
> index 0bb84b1..b2a3523 100644
> --- a/include/wacom-properties.h
> +++ b/include/wacom-properties.h
> @@ -46,6 +46,9 @@
>   */
>  #define WACOM_PROP_STRIPBUTTONS "Wacom Strip Buttons"
>
> +/* 8 bit, 2 values, LED0 (right side) and LED1 (left side) */
> +#define WACOM_PROP_LED "Wacom LEDs"
> +
>  /* 8 bit, 6 values, rel wheel up, rel wheel down, abs wheel up, abs wheel 
> down, abs wheel 2 up, abs wheel 2 down
>    OR
>    Atom, 6 values , rel wheel up, rel wheel down, abs wheel up, abs wheel 
> down, abs wheel 2 up, abs wheel 2 down
> diff --git a/man/xsetwacom.man b/man/xsetwacom.man
> index dc0995f..58a4427 100644
> --- a/man/xsetwacom.man
> +++ b/man/xsetwacom.man
> @@ -201,6 +201,13 @@ sets the max distance from tablet to stop reporting 
> movement for cursor in
>  relative mode. Default for Intuos series is 10, for Graphire series 
> (including
>  Volitos) is 42. Only available for the cursor/puck device.
>  .TP
> +\fBLED0\fR status
> +Selects which LED in the first bank of LEDs should be lit. Intuos4/Cintiq 
> 21UX/Cintiq 24HD. Default:  0,
> +range of 0 to 3.
> +.TP
> +\fBLED1\fR status
> +Selects which LED in the second bank of LEDs should be lit. Cintiq 
> 21UX/24HD. Default:  0, range of 0 to 3.
> +.TP
>  \fBThreshold\fR level
>  Set the minimum pressure necessary to generate a Button event for the stylus
>  tip, eraser, or touch.  The pressure levels of all tablets are normalized to
> diff --git a/src/wcmCommon.c b/src/wcmCommon.c
> index 0f041e3..a337441 100644
> --- a/src/wcmCommon.c
> +++ b/src/wcmCommon.c
> @@ -1,6 +1,6 @@
>  /*
>  * Copyright 1995-2002 by Frederic Lepied, France. <[email protected]>
> - * Copyright 2002-2010 by Ping Cheng, Wacom. <[email protected]>
> + * Copyright 2002-2012 by Ping Cheng, Wacom. <[email protected]>
>  *
>  * This program is free software; you can redistribute it and/or
>  * modify it under the terms of the GNU General Public License
> @@ -1472,6 +1472,8 @@ WacomCommonPtr wcmNewCommon(void)
>        common->wcmMaxStripY = 4096;       /* Max fingerstrip Y */
>        common->wcmMaxtiltX = 128;         /* Max tilt in X directory */
>        common->wcmMaxtiltY = 128;         /* Max tilt in Y directory */
> +       common->fd_sysfs[0] = -1;          /* file descriptor to sysfs led0 */
> +       common->fd_sysfs[1] = -1;          /* file descriptor to sysfs led1 */
>        common->wcmCursorProxoutDistDefault = PROXOUT_INTUOS_DISTANCE;
>                        /* default to Intuos */
>        common->wcmSuppress = DEFAULT_SUPPRESS;
> diff --git a/src/wcmConfig.c b/src/wcmConfig.c
> index 5920e11..1dd9d03 100644
> --- a/src/wcmConfig.c
> +++ b/src/wcmConfig.c
> @@ -1,6 +1,6 @@
>  /*
>  * Copyright 1995-2002 by Frederic Lepied, France. <[email protected]>
> - * Copyright 2002-2010 by Ping Cheng, Wacom. <[email protected]>
> + * Copyright 2002-2012 by Ping Cheng, Wacom. <[email protected]>
>  *
>  * This program is free software; you can redistribute it and/or
>  * modify it under the terms of the GNU General Public License
> @@ -21,6 +21,7 @@
>  #include <config.h>
>  #endif
>
> +#include <libudev.h>
>  #include "xf86Wacom.h"
>  #include "wcmFilter.h"
>  #include <sys/stat.h>
> @@ -441,6 +442,53 @@ static int wcmIsHotpluggedDevice(InputInfoPtr pInfo)
>        return !strcmp(source, "_driver/wacom");
>  }
>
> +static void wcmStoreLEDsysfsInfo(InputInfoPtr pInfo)
> +{
> +       WacomDevicePtr  priv = (WacomDevicePtr)pInfo->private;
> +       WacomCommonPtr  common = priv->common;
> +       struct stat st;
> +       struct udev *udev = udev_new();
> +       struct udev_device *parent;
> +       struct udev_device *device;
> +       char fs_path[128], buf[10];
> +       int err = -1;
> +       int i;
> +
> +       stat(common->device_path, &st);
> +       device = udev_device_new_from_devnum(udev, 'c', st.st_rdev);
> +       if (!device)
> +               return;
> +
> +       parent = udev_device_get_parent_with_subsystem_devtype(device,
> +                "usb", NULL);
> +
> +       if (!parent)
> +               goto out;
> +
> +       for (i = 0; i < ARRAY_SIZE(common->led_status); i++)
> +       {
> +               sprintf(fs_path, "%s/wacom_led/status_led%d_select",
> +                       udev_device_get_syspath(parent), i);
> +               common->fd_sysfs[i] = open(fs_path, O_RDWR);
> +               if (common->fd_sysfs[i] >= 0)
> +               {
> +                       SYSCALL(err = read(common->fd_sysfs[i], buf, 1));
> +                       if (err < -1)
> +                       {
> +                               xf86Msg(X_WARNING, "%s: failed to get led%d 
> status\n", pInfo->name, i);
> +                       }
> +                       else
> +                               common->led_status[i] = buf[0] - '0';
> +               }
> +               else
> +                       DBG(2, common, "No LED%d sysfs on %s for %s\n",
> +                                               i, fs_path, pInfo->name);
> +       }
> +
> +out:
> +       free(device);
> +}
> +
>  /* wcmPreInit - called for each input devices with the driver set to
>  * "wacom" */
>  #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 12
> @@ -524,9 +572,14 @@ static int wcmPreInit(InputDriverPtr drv, InputInfoPtr 
> pInfo, int flags)
>
>        /* check if this is the first tool on the port */
>        if (!wcmMatchDevice(pInfo, &common))
> +       {
>                /* initialize supported keys with the first tool on the port */
>                wcmDeviceTypeKeys(pInfo);
>
> +               /* store lED sysfs file descriptor and initial status */
> +               wcmStoreLEDsysfsInfo(pInfo);
> +       }
> +
>        common->debugLevel = xf86SetIntOption(pInfo->options,
>                                              "CommonDBG", common->debugLevel);
>        oldname = pInfo->name;
> diff --git a/src/wcmXCommand.c b/src/wcmXCommand.c
> index 40393dc..1c649df 100644
> --- a/src/wcmXCommand.c
> +++ b/src/wcmXCommand.c
> @@ -1,5 +1,5 @@
>  /*
> - * Copyright 2007-2010 by Ping Cheng, Wacom. <[email protected]>
> + * Copyright 2007-2012 by Ping Cheng, Wacom. <[email protected]>
>  *
>  * This program is free software; you can redistribute it and/or
>  * modify it under the terms of the GNU General Public License
> @@ -91,6 +91,7 @@ Atom prop_tv_resolutions;
>  Atom prop_cursorprox;
>  Atom prop_threshold;
>  Atom prop_suppress;
> +Atom prop_led;
>  Atom prop_touch;
>  Atom prop_gesture;
>  Atom prop_gesture_param;
> @@ -206,6 +207,10 @@ void InitWcmDeviceProperties(InputInfoPtr pInfo)
>        values[1] = common->wcmRawSample;
>        prop_suppress = InitWcmAtom(pInfo->dev, WACOM_PROP_SAMPLE, XA_INTEGER, 
> 32, 2, values);
>
> +       values[0] = common->led_status[0];
> +       values[1] = common->led_status[1];
> +       prop_led = InitWcmAtom(pInfo->dev, WACOM_PROP_LED, XA_INTEGER, 8, 2, 
> values);
> +
>        values[0] = common->wcmTouch;
>        prop_touch = InitWcmAtom(pInfo->dev, WACOM_PROP_TOUCH, XA_INTEGER, 8, 
> 1, values);
>
> @@ -695,6 +700,31 @@ int wcmSetProperty(DeviceIntPtr dev, Atom property, 
> XIPropertyValuePtr prop,
>                        common->wcmSuppress = values[0];
>                        common->wcmRawSample = values[1];
>                }
> +       } else if (property == prop_led)
> +       {
> +               CARD8 *values;
> +               int i;
> +
> +               if (prop->size != 2 || prop->format != 8)
> +                       return BadValue;
> +
> +               values = (CARD8*)prop->data;
> +
> +               for (i = 0; i < prop->size; i++)
> +               {
> +                       if (values[i] < 0 || values[i] > 3)
> +                               return BadValue;
> +
> +                       if (common->fd_sysfs[i] >= 0 && !checkonly)
> +                       {
> +                               char buf[10];
> +                               int err = -1;
> +                               sprintf(buf, "%d", values[i]);
> +                               err = xf86WriteSerial(common->fd_sysfs[i], 
> buf, strlen(buf));
> +                               if (err == strlen(buf))
> +                                       common->led_status[i] = values[i];
> +                       }
> +               }
>        } else if (property == prop_rotation)
>        {
>                CARD8 value;
> diff --git a/src/xf86Wacom.c b/src/xf86Wacom.c
> index d1c149f..5be7363 100644
> --- a/src/xf86Wacom.c
> +++ b/src/xf86Wacom.c
> @@ -1,6 +1,6 @@
>  /*
>  * Copyright 1995-2002 by Frederic Lepied, France. <[email protected]>
> - * Copyright 2002-2010 by Ping Cheng, Wacom. <[email protected]>
> + * Copyright 2002-2012 by Ping Cheng, Wacom. <[email protected]>
>  *
>  * This program is free software; you can redistribute it and/or
>  * modify it under the terms of the GNU General Public License
> @@ -758,6 +758,7 @@ static void wcmDevClose(InputInfoPtr pInfo)
>  {
>        WacomDevicePtr priv = (WacomDevicePtr)pInfo->private;
>        WacomCommonPtr common = priv->common;
> +       int i;
>
>        DBG(4, priv, "Wacom number of open devices = %d\n", common->fd_refs);
>
> @@ -770,6 +771,12 @@ static void wcmDevClose(InputInfoPtr pInfo)
>                        xf86CloseSerial (common->fd);
>                }
>        }
> +
> +       for (i = 0; i < ARRAY_SIZE(common->fd_sysfs); i++)
> +       {
> +               xf86CloseSerial(common->fd_sysfs[i]);
> +               common->fd_sysfs[i] = -1;
> +       }
>  }
>
>  static void wcmEnableDisableTool(DeviceIntPtr dev, Bool enable)
> diff --git a/src/xf86WacomDefs.h b/src/xf86WacomDefs.h
> index 2f3f7b4..eb39c4f 100644
> --- a/src/xf86WacomDefs.h
> +++ b/src/xf86WacomDefs.h
> @@ -1,6 +1,6 @@
>  /*
>  * Copyright 1995-2002 by Frederic Lepied, France. <[email protected]>
> - * Copyright 2002-2010 by Ping Cheng, Wacom. <[email protected]>
> + * Copyright 2002-2012 by Ping Cheng, Wacom. <[email protected]>
>  *
>  * This program is free software; you can redistribute it and/or
>  * modify it under the terms of the GNU General Public License
> @@ -420,6 +420,8 @@ struct _WacomCommonRec
>        int tablet_type;             /* bitmask of tablet features (WCM_LCD, 
> WCM_PEN, etc) */
>        int fd;                      /* file descriptor to tablet */
>        int fd_refs;                 /* number of references to fd; if =0, fd 
> is invalid */
> +       int fd_sysfs[2];             /* file descriptor to sysfs led0 and 
> led1 */
> +       unsigned char led_status[2]; /* Left and Right LED status */
>        unsigned long wcmKeys[NBITS(KEY_MAX)]; /* supported tool types for the 
> device */
>        WacomDevicePtr wcmTouchDevice; /* The pointer for pen to access the
>                                          touch tool of the same device id */
> diff --git a/tools/xsetwacom.c b/tools/xsetwacom.c
> index 9ab285b..83fb610 100644
> --- a/tools/xsetwacom.c
> +++ b/tools/xsetwacom.c
> @@ -361,6 +361,22 @@ static param_t parameters[] =
>                .get_func = get_map,
>        },
>        {
> +               .name = "LED0",
> +               .desc = "Selects which LED in the first bank of LEDs should 
> be lit. ",
> +               .prop_name = WACOM_PROP_LED,
> +               .prop_format = 8,
> +               .prop_offset = 0,
> +               .arg_count = 1,
> +       },
> +       {
> +               .name = "LED1",
> +               .desc = "Selects which LED in the second bank of LEDs should 
> be lit. ",
> +               .prop_name = WACOM_PROP_LED,
> +               .prop_format = 8,
> +               .prop_offset = 1,
> +               .arg_count = 1,
> +       },
> +       {
>                .name = "Threshold",
>                .desc = "Sets tip/eraser pressure threshold "
>                "(default is 27). ",
> @@ -2689,7 +2705,7 @@ static void test_parameter_number(void)
>         * deprecated them.
>         * Numbers include trailing NULL entry.
>         */
> -       assert(ARRAY_SIZE(parameters) == 36);
> +       assert(ARRAY_SIZE(parameters) == 38);
>        assert(ARRAY_SIZE(deprecated_parameters) == 17);
>  }
>
> --
> 1.7.7.3
>

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