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Input: wacom - add LED support for Cintiq 21ux2

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Cintiq 21ux2 has two sets of four LEDs on right and left side of
the tablet, respectively.

Reviewed-by: Eduard Hasenleithner <eduard@hasenleithner.at>
Tested-by: Eduard Hasenleithner <eduard@hasenleithner.at>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Ping Cheng
2011-10-04 23:51:14 -07:00
committed by Dmitry Torokhov
parent 77e82516a6
commit 09e7d94107
3 changed files with 94 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/input/tablet/wacom.h
View File

@@ -11,7 +11,7 @@
* Copyright (c) 2000 Daniel Egger <egger@suse.de>
* Copyright (c) 2001 Frederic Lepied <flepied@mandrakesoft.com>
* Copyright (c) 2004 Panagiotis Issaris <panagiotis.issaris@mech.kuleuven.ac.be>
* Copyright (c) 2002-2009 Ping Cheng <pingc@wacom.com>
* Copyright (c) 2002-2011 Ping Cheng <pingc@wacom.com>
*
* ChangeLog:
* v0.1 (vp) - Initial release
@@ -93,7 +93,7 @@
/*
* Version Information
*/
#define DRIVER_VERSION "v1.52"
#define DRIVER_VERSION "v1.53"
#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
#define DRIVER_DESC "USB Wacom tablet driver"
#define DRIVER_LICENSE "GPL"
@@ -115,9 +115,9 @@ struct wacom {
bool open;
char phys[32];
struct wacom_led {
u8 select; /* status led selector (0..3) */
u8 llv; /* status led brightness no button (1..127) */
u8 hlv; /* status led brightness button pressed (1..127) */
u8 select[2]; /* status led selector (0..3) */
u8 llv; /* status led brightness no button (1..127) */
u8 hlv; /* status led brightness button pressed (1..127) */
u8 img_lum; /* OLED matrix display brightness */
} led;
};

98
drivers/input/tablet/wacom_sys.c
View File

@@ -493,14 +493,19 @@ static void wacom_remove_shared_data(struct wacom_wac *wacom)
static int wacom_led_control(struct wacom *wacom)
{
unsigned char *buf;
int retval;
int retval, led = 0;
buf = kzalloc(9, GFP_KERNEL);
if (!buf)
return -ENOMEM;
if (wacom->wacom_wac.features.type == WACOM_21UX2)
led = (wacom->led.select[1] << 4) | 0x40;
led |= wacom->led.select[0] | 0x4;
buf[0] = WAC_CMD_LED_CONTROL;
buf[1] = wacom->led.select >= 0 ? wacom->led.select | 4 : 0;
buf[1] = led;
buf[2] = wacom->led.llv;
buf[3] = wacom->led.hlv;
buf[4] = wacom->led.img_lum;
@@ -552,8 +557,7 @@ out:
return retval;
}
static ssize_t wacom_led_select_store(struct device *dev,
struct device_attribute *attr,
static ssize_t wacom_led_select_store(struct device *dev, int set_id,
const char *buf, size_t count)
{
struct wacom *wacom = dev_get_drvdata(dev);
@@ -566,7 +570,7 @@ static ssize_t wacom_led_select_store(struct device *dev,
mutex_lock(&wacom->lock);
wacom->led.select = id;
wacom->led.select[set_id] = id & 0x3;
err = wacom_led_control(wacom);
mutex_unlock(&wacom->lock);
@@ -574,7 +578,17 @@ static ssize_t wacom_led_select_store(struct device *dev,
return err < 0 ? err : count;
}
static DEVICE_ATTR(status_led_select, S_IWUSR, NULL, wacom_led_select_store);
#define DEVICE_LED_SELECT_ATTR(SET_ID) \
static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
struct device_attribute *attr, const char *buf, size_t count) \
{ \
return wacom_led_select_store(dev, SET_ID, buf, count); \
} \
static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR, NULL, \
wacom_led##SET_ID##_select_store)
DEVICE_LED_SELECT_ATTR(0);
DEVICE_LED_SELECT_ATTR(1);
static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
const char *buf, size_t count)
@@ -648,10 +662,21 @@ DEVICE_BTNIMG_ATTR(5);
DEVICE_BTNIMG_ATTR(6);
DEVICE_BTNIMG_ATTR(7);
static struct attribute *wacom_led_attrs[] = {
static struct attribute *cintiq_led_attrs[] = {
&dev_attr_status_led0_select.attr,
&dev_attr_status_led1_select.attr,
NULL
};
static struct attribute_group cintiq_led_attr_group = {
.name = "wacom_led",
.attrs = cintiq_led_attrs,
};
static struct attribute *intuos4_led_attrs[] = {
&dev_attr_status0_luminance.attr,
&dev_attr_status1_luminance.attr,
&dev_attr_status_led_select.attr,
&dev_attr_status_led0_select.attr,
&dev_attr_buttons_luminance.attr,
&dev_attr_button0_rawimg.attr,
&dev_attr_button1_rawimg.attr,
@@ -664,43 +689,66 @@ static struct attribute *wacom_led_attrs[] = {
NULL
};
static struct attribute_group wacom_led_attr_group = {
static struct attribute_group intuos4_led_attr_group = {
.name = "wacom_led",
.attrs = wacom_led_attrs,
.attrs = intuos4_led_attrs,
};
static int wacom_initialize_leds(struct wacom *wacom)
{
int error;
if (wacom->wacom_wac.features.type >= INTUOS4 &&
wacom->wacom_wac.features.type <= INTUOS4L) {
/* Initialize default values */
wacom->led.select = 0;
/* Initialize default values */
switch (wacom->wacom_wac.features.type) {
case INTUOS4:
case INTUOS4L:
wacom->led.select[0] = 0;
wacom->led.select[1] = 0;
wacom->led.llv = 10;
wacom->led.hlv = 20;
wacom->led.img_lum = 10;
wacom_led_control(wacom);
error = sysfs_create_group(&wacom->intf->dev.kobj,
&intuos4_led_attr_group);
break;
case WACOM_21UX2:
wacom->led.select[0] = 0;
wacom->led.select[1] = 0;
wacom->led.llv = 0;
wacom->led.hlv = 0;
wacom->led.img_lum = 0;
error = sysfs_create_group(&wacom->intf->dev.kobj,
&wacom_led_attr_group);
if (error) {
dev_err(&wacom->intf->dev,
"cannot create sysfs group err: %d\n", error);
return error;
}
&cintiq_led_attr_group);
break;
default:
return 0;
}
if (error) {
dev_err(&wacom->intf->dev,
"cannot create sysfs group err: %d\n", error);
return error;
}
wacom_led_control(wacom);
return 0;
}
static void wacom_destroy_leds(struct wacom *wacom)
{
if (wacom->wacom_wac.features.type >= INTUOS4 &&
wacom->wacom_wac.features.type <= INTUOS4L) {
switch (wacom->wacom_wac.features.type) {
case INTUOS4:
case INTUOS4L:
sysfs_remove_group(&wacom->intf->dev.kobj,
&wacom_led_attr_group);
&intuos4_led_attr_group);
break;
case WACOM_21UX2:
sysfs_remove_group(&wacom->intf->dev.kobj,
&cintiq_led_attr_group);
break;
}
}