2014-07-10 18:45:23

by Benjamin Tissoires

[permalink] [raw]
Subject: [PATCH 0/5] Input - wacom: battery enhancements and unifying hid-wacom and wacom

Hi guys,

Continuing on the Wacom cleanup, here are 5 patches.

The first two enhance the battery reporting for the Wireless receiver by
adding the status of the battery (discharging, full, charging) - inspired by
the code found in hid-wacom.c, and also by adding notifications to the power
system so that upower knows when the battery changed.

The last three are the handling of the two Wacom Bluetooth devices in wacom.ko.
Some enhancements here:
- Intuos4 now supports other tools than just the plain stylus (mouse, artpen, ...)
- one less driver for Wacom (~700 lines of code less in total)
- unifying access to LEDs/OLEDs from Bluetooth and USB devices

However, I did not backport the speed attribute and the ac power device (which
is infered by the battery status). I don't know if there are users of those two,
so I let them aside for now. Przemo, any ideas if this is actually used?

This whole code is based on top of the previous HID conversion patches.
I pushed a branch with all I have queued on the list here:
https://github.com/bentiss/linux/commits/hid-wacom-legacy-3.16-rc4

Again, given that there has been no answer on how this can be merged upstream
(Jiri? Dmitry?), I just piled those on top of the previous.
I wouldn't to resplit the input and hid specific changes if this is the choice
that is made.

Cheers,
Benjamin

Benjamin Tissoires (5):
Input - wacom: enhance Wireless Receiver battery reporting
Input - wacom: use a specific name for the battery device
Input - wacom: handle Graphire BT tablets in wacom.ko
Input - wacom: handle Intuos 4 BT in wacom.ko
HID: remove hid-wacom Bluetooth driver

drivers/hid/Kconfig | 8 -
drivers/hid/Makefile | 1 -
drivers/hid/hid-core.c | 2 -
drivers/hid/hid-wacom.c | 973 ---------------------------------------
drivers/input/tablet/wacom.h | 6 +
drivers/input/tablet/wacom_sys.c | 114 ++++-
drivers/input/tablet/wacom_wac.c | 189 +++++++-
drivers/input/tablet/wacom_wac.h | 8 +
8 files changed, 303 insertions(+), 998 deletions(-)
delete mode 100644 drivers/hid/hid-wacom.c

--
2.0.0


2014-07-10 18:45:32

by Benjamin Tissoires

[permalink] [raw]
Subject: [PATCH 2/5] Input - wacom: use a specific name for the battery device

The current implementation uses "wacom_battery" as a generic name for
batteries. This prevents us to have two Wacom devices with a battery
attached as the power system will complain about the name which is already
registered.

Use a specific name for each type of battery attached.

A bug in upower prevents us to use spaces in the power name, so replace
each space by '_'.

Signed-off-by: Benjamin Tissoires <[email protected]>
---
drivers/input/tablet/wacom_sys.c | 13 ++++++++++---
drivers/input/tablet/wacom_wac.h | 1 +
2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 1888709..b5d75a4 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -803,15 +803,21 @@ static int wacom_battery_get_property(struct power_supply *psy,
return ret;
}

-static int wacom_initialize_battery(struct wacom *wacom)
+static int wacom_initialize_battery(struct wacom *wacom, const char *name)
{
int error = 0;
+ int i;

if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) {
wacom->battery.properties = wacom_battery_props;
wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
wacom->battery.get_property = wacom_battery_get_property;
- wacom->battery.name = "wacom_battery";
+ sprintf(wacom->wacom_wac.bat_name, "%s battery", name);
+ for (i=0; i < strlen(wacom->wacom_wac.bat_name); i++) {
+ if (wacom->wacom_wac.bat_name[i] == ' ')
+ wacom->wacom_wac.bat_name[i] = '_';
+ }
+ wacom->battery.name = wacom->wacom_wac.bat_name;
wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY;
wacom->battery.use_for_apm = 0;

@@ -1012,7 +1018,8 @@ static void wacom_wireless_work(struct work_struct *work)
wacom_wac->shared->touch_input = wacom_wac2->input;
}

- error = wacom_initialize_battery(wacom);
+ error = wacom_initialize_battery(wacom,
+ wacom_wac1->features.name);
if (error)
goto fail;
}
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 68cf257..7565be5 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -153,6 +153,7 @@ struct wacom_shared {
struct wacom_wac {
char name[WACOM_NAME_MAX];
char pad_name[WACOM_NAME_MAX];
+ char bat_name[WACOM_NAME_MAX];
unsigned char data[WACOM_PKGLEN_MAX];
int tool[2];
int id[2];
--
2.0.0

2014-07-10 18:45:37

by Benjamin Tissoires

[permalink] [raw]
Subject: [PATCH 5/5] HID: remove hid-wacom Bluetooth driver

Bluetooth Wacom tablets are now handled by the regular wacom.ko driver.
Remove the now useless hid-wacom driver.

Signed-off-by: Benjamin Tissoires <[email protected]>
---
drivers/hid/Kconfig | 8 -
drivers/hid/Makefile | 1 -
drivers/hid/hid-wacom.c | 971 ------------------------------------------------
3 files changed, 980 deletions(-)
delete mode 100644 drivers/hid/hid-wacom.c

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 191637c..261e67f 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -761,14 +761,6 @@ config THRUSTMASTER_FF
a THRUSTMASTER Dual Trigger 3-in-1 or a THRUSTMASTER Ferrari GT
Rumble Force or Force Feedback Wheel.

-config HID_WACOM
- tristate "Wacom Bluetooth devices support"
- depends on HID
- depends on LEDS_CLASS
- select POWER_SUPPLY
- ---help---
- Support for Wacom Graphire Bluetooth and Intuos4 WL tablets.
-
config HID_WIIMOTE
tristate "Nintendo Wii / Wii U peripherals"
depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 058b5f0..4a39680 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -116,7 +116,6 @@ obj-$(CONFIG_HID_UCLOGIC) += hid-uclogic.o
obj-$(CONFIG_HID_XINMO) += hid-xinmo.o
obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o
obj-$(CONFIG_HID_ZYDACRON) += hid-zydacron.o
-obj-$(CONFIG_HID_WACOM) += hid-wacom.o
obj-$(CONFIG_HID_WALTOP) += hid-waltop.o
obj-$(CONFIG_HID_WIIMOTE) += hid-wiimote.o
obj-$(CONFIG_HID_SENSOR_HUB) += hid-sensor-hub.o
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
deleted file mode 100644
index db2d07d..0000000
--- a/drivers/hid/hid-wacom.c
+++ /dev/null
@@ -1,971 +0,0 @@
-/*
- * Bluetooth Wacom Tablet support
- *
- * Copyright (c) 1999 Andreas Gal
- * Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
- * Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
- * Copyright (c) 2006-2007 Jiri Kosina
- * Copyright (c) 2008 Jiri Slaby <[email protected]>
- * Copyright (c) 2006 Andrew Zabolotny <[email protected]>
- * Copyright (c) 2009 Bastien Nocera <[email protected]>
- * Copyright (c) 2011 Przemysław Firszt <[email protected]>
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/device.h>
-#include <linux/hid.h>
-#include <linux/module.h>
-#include <linux/leds.h>
-#include <linux/slab.h>
-#include <linux/power_supply.h>
-
-#include "hid-ids.h"
-
-#define PAD_DEVICE_ID 0x0F
-
-#define WAC_CMD_LED_CONTROL 0x20
-#define WAC_CMD_ICON_START_STOP 0x21
-#define WAC_CMD_ICON_TRANSFER 0x26
-
-struct wacom_data {
- __u16 tool;
- __u16 butstate;
- __u8 whlstate;
- __u8 features;
- __u32 id;
- __u32 serial;
- unsigned char high_speed;
- __u8 battery_capacity;
- __u8 power_raw;
- __u8 ps_connected;
- __u8 bat_charging;
- struct power_supply battery;
- struct power_supply ac;
- __u8 led_selector;
- struct led_classdev *leds[4];
-};
-
-/*percent of battery capacity for Graphire
- 8th value means AC online and show 100% capacity */
-static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
-/*percent of battery capacity for Intuos4 WL, AC has a separate bit*/
-static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
-
-static enum power_supply_property wacom_battery_props[] = {
- POWER_SUPPLY_PROP_PRESENT,
- POWER_SUPPLY_PROP_CAPACITY,
- POWER_SUPPLY_PROP_SCOPE,
- POWER_SUPPLY_PROP_STATUS,
-};
-
-static enum power_supply_property wacom_ac_props[] = {
- POWER_SUPPLY_PROP_PRESENT,
- POWER_SUPPLY_PROP_ONLINE,
- POWER_SUPPLY_PROP_SCOPE,
-};
-
-static void wacom_scramble(__u8 *image)
-{
- __u16 mask;
- __u16 s1;
- __u16 s2;
- __u16 r1 ;
- __u16 r2 ;
- __u16 r;
- __u8 buf[256];
- int i, w, x, y, z;
-
- for (x = 0; x < 32; x++) {
- for (y = 0; y < 8; y++)
- buf[(8 * x) + (7 - y)] = image[(8 * x) + y];
- }
-
- /* Change 76543210 into GECA6420 as required by Intuos4 WL
- * HGFEDCBA HFDB7531
- */
- for (x = 0; x < 4; x++) {
- for (y = 0; y < 4; y++) {
- for (z = 0; z < 8; z++) {
- mask = 0x0001;
- r1 = 0;
- r2 = 0;
- i = (x << 6) + (y << 4) + z;
- s1 = buf[i];
- s2 = buf[i+8];
- for (w = 0; w < 8; w++) {
- r1 |= (s1 & mask);
- r2 |= (s2 & mask);
- s1 <<= 1;
- s2 <<= 1;
- mask <<= 2;
- }
- r = r1 | (r2 << 1);
- i = (x << 6) + (y << 4) + (z << 1);
- image[i] = 0xFF & r;
- image[i+1] = (0xFF00 & r) >> 8;
- }
- }
- }
-}
-
-static void wacom_set_image(struct hid_device *hdev, const char *image,
- __u8 icon_no)
-{
- __u8 rep_data[68];
- __u8 p[256];
- int ret, i, j;
-
- for (i = 0; i < 256; i++)
- p[i] = image[i];
-
- rep_data[0] = WAC_CMD_ICON_START_STOP;
- rep_data[1] = 0;
- ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
- HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
- if (ret < 0)
- goto err;
-
- rep_data[0] = WAC_CMD_ICON_TRANSFER;
- rep_data[1] = icon_no & 0x07;
-
- wacom_scramble(p);
-
- for (i = 0; i < 4; i++) {
- for (j = 0; j < 64; j++)
- rep_data[j + 3] = p[(i << 6) + j];
-
- rep_data[2] = i;
- ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 67,
- HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
- }
-
- rep_data[0] = WAC_CMD_ICON_START_STOP;
- rep_data[1] = 0;
-
- ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
- HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
-
-err:
- return;
-}
-
-static void wacom_leds_set_brightness(struct led_classdev *led_dev,
- enum led_brightness value)
-{
- struct device *dev = led_dev->dev->parent;
- struct hid_device *hdev;
- struct wacom_data *wdata;
- unsigned char *buf;
- __u8 led = 0;
- int i;
-
- hdev = container_of(dev, struct hid_device, dev);
- wdata = hid_get_drvdata(hdev);
- for (i = 0; i < 4; ++i) {
- if (wdata->leds[i] == led_dev)
- wdata->led_selector = i;
- }
-
- led = wdata->led_selector | 0x04;
- buf = kzalloc(9, GFP_KERNEL);
- if (buf) {
- buf[0] = WAC_CMD_LED_CONTROL;
- buf[1] = led;
- buf[2] = value >> 2;
- buf[3] = value;
- /* use fixed brightness for OLEDs */
- buf[4] = 0x08;
- hid_hw_raw_request(hdev, buf[0], buf, 9, HID_FEATURE_REPORT,
- HID_REQ_SET_REPORT);
- kfree(buf);
- }
-
- return;
-}
-
-static enum led_brightness wacom_leds_get_brightness(struct led_classdev *led_dev)
-{
- struct wacom_data *wdata;
- struct device *dev = led_dev->dev->parent;
- int value = 0;
- int i;
-
- wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
-
- for (i = 0; i < 4; ++i) {
- if (wdata->leds[i] == led_dev) {
- value = wdata->leds[i]->brightness;
- break;
- }
- }
-
- return value;
-}
-
-
-static int wacom_initialize_leds(struct hid_device *hdev)
-{
- struct wacom_data *wdata = hid_get_drvdata(hdev);
- struct led_classdev *led;
- struct device *dev = &hdev->dev;
- size_t namesz = strlen(dev_name(dev)) + 12;
- char *name;
- int i, ret;
-
- wdata->led_selector = 0;
-
- for (i = 0; i < 4; i++) {
- led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
- if (!led) {
- hid_warn(hdev,
- "can't allocate memory for LED selector\n");
- ret = -ENOMEM;
- goto err;
- }
-
- name = (void *)&led[1];
- snprintf(name, namesz, "%s:selector:%d", dev_name(dev), i);
- led->name = name;
- led->brightness = 0;
- led->max_brightness = 127;
- led->brightness_get = wacom_leds_get_brightness;
- led->brightness_set = wacom_leds_set_brightness;
-
- wdata->leds[i] = led;
-
- ret = led_classdev_register(dev, wdata->leds[i]);
-
- if (ret) {
- wdata->leds[i] = NULL;
- kfree(led);
- hid_warn(hdev, "can't register LED\n");
- goto err;
- }
- }
-
-err:
- return ret;
-}
-
-static void wacom_destroy_leds(struct hid_device *hdev)
-{
- struct wacom_data *wdata = hid_get_drvdata(hdev);
- struct led_classdev *led;
- int i;
-
- for (i = 0; i < 4; ++i) {
- if (wdata->leds[i]) {
- led = wdata->leds[i];
- wdata->leds[i] = NULL;
- led_classdev_unregister(led);
- kfree(led);
- }
- }
-
-}
-
-static int wacom_battery_get_property(struct power_supply *psy,
- enum power_supply_property psp,
- union power_supply_propval *val)
-{
- struct wacom_data *wdata = container_of(psy,
- struct wacom_data, battery);
- int ret = 0;
-
- switch (psp) {
- case POWER_SUPPLY_PROP_PRESENT:
- val->intval = 1;
- break;
- case POWER_SUPPLY_PROP_SCOPE:
- val->intval = POWER_SUPPLY_SCOPE_DEVICE;
- break;
- case POWER_SUPPLY_PROP_CAPACITY:
- val->intval = wdata->battery_capacity;
- break;
- case POWER_SUPPLY_PROP_STATUS:
- if (wdata->bat_charging)
- val->intval = POWER_SUPPLY_STATUS_CHARGING;
- else
- if (wdata->battery_capacity == 100 && wdata->ps_connected)
- val->intval = POWER_SUPPLY_STATUS_FULL;
- else
- val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
-}
-
-static int wacom_ac_get_property(struct power_supply *psy,
- enum power_supply_property psp,
- union power_supply_propval *val)
-{
- struct wacom_data *wdata = container_of(psy, struct wacom_data, ac);
- int ret = 0;
-
- switch (psp) {
- case POWER_SUPPLY_PROP_PRESENT:
- /* fall through */
- case POWER_SUPPLY_PROP_ONLINE:
- val->intval = wdata->ps_connected;
- break;
- case POWER_SUPPLY_PROP_SCOPE:
- val->intval = POWER_SUPPLY_SCOPE_DEVICE;
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
-}
-
-static void wacom_set_features(struct hid_device *hdev, u8 speed)
-{
- struct wacom_data *wdata = hid_get_drvdata(hdev);
- int limit, ret;
- __u8 rep_data[2];
-
- switch (hdev->product) {
- case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
- rep_data[0] = 0x03 ; rep_data[1] = 0x00;
- limit = 3;
- do {
- ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
- HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
- } while (ret < 0 && limit-- > 0);
-
- if (ret >= 0) {
- if (speed == 0)
- rep_data[0] = 0x05;
- else
- rep_data[0] = 0x06;
-
- rep_data[1] = 0x00;
- limit = 3;
- do {
- ret = hid_hw_raw_request(hdev, rep_data[0],
- rep_data, 2, HID_FEATURE_REPORT,
- HID_REQ_SET_REPORT);
- } while (ret < 0 && limit-- > 0);
-
- if (ret >= 0) {
- wdata->high_speed = speed;
- return;
- }
- }
-
- /*
- * Note that if the raw queries fail, it's not a hard failure
- * and it is safe to continue
- */
- hid_warn(hdev, "failed to poke device, command %d, err %d\n",
- rep_data[0], ret);
- break;
- case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
- if (speed == 1)
- wdata->features &= ~0x20;
- else
- wdata->features |= 0x20;
-
- rep_data[0] = 0x03;
- rep_data[1] = wdata->features;
-
- ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
- HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
- if (ret >= 0)
- wdata->high_speed = speed;
- break;
- }
-
- return;
-}
-
-static ssize_t wacom_show_speed(struct device *dev,
- struct device_attribute
- *attr, char *buf)
-{
- struct wacom_data *wdata = dev_get_drvdata(dev);
-
- return snprintf(buf, PAGE_SIZE, "%i\n", wdata->high_speed);
-}
-
-static ssize_t wacom_store_speed(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct hid_device *hdev = container_of(dev, struct hid_device, dev);
- int new_speed;
-
- if (sscanf(buf, "%1d", &new_speed ) != 1)
- return -EINVAL;
-
- if (new_speed == 0 || new_speed == 1) {
- wacom_set_features(hdev, new_speed);
- return strnlen(buf, PAGE_SIZE);
- } else
- return -EINVAL;
-}
-
-static DEVICE_ATTR(speed, S_IRUGO | S_IWUSR | S_IWGRP,
- wacom_show_speed, wacom_store_speed);
-
-#define WACOM_STORE(OLED_ID) \
-static ssize_t wacom_oled##OLED_ID##_store(struct device *dev, \
- struct device_attribute *attr, \
- const char *buf, size_t count) \
-{ \
- struct hid_device *hdev = container_of(dev, struct hid_device, \
- dev); \
- \
- if (count != 256) \
- return -EINVAL; \
- \
- wacom_set_image(hdev, buf, OLED_ID); \
- \
- return count; \
-} \
- \
-static DEVICE_ATTR(oled##OLED_ID##_img, S_IWUSR | S_IWGRP, NULL, \
- wacom_oled##OLED_ID##_store)
-
-WACOM_STORE(0);
-WACOM_STORE(1);
-WACOM_STORE(2);
-WACOM_STORE(3);
-WACOM_STORE(4);
-WACOM_STORE(5);
-WACOM_STORE(6);
-WACOM_STORE(7);
-
-static int wacom_gr_parse_report(struct hid_device *hdev,
- struct wacom_data *wdata,
- struct input_dev *input, unsigned char *data)
-{
- int tool, x, y, rw;
-
- tool = 0;
- /* Get X & Y positions */
- x = le16_to_cpu(*(__le16 *) &data[2]);
- y = le16_to_cpu(*(__le16 *) &data[4]);
-
- /* Get current tool identifier */
- if (data[1] & 0x90) { /* If pen is in the in/active area */
- switch ((data[1] >> 5) & 3) {
- case 0: /* Pen */
- tool = BTN_TOOL_PEN;
- break;
-
- case 1: /* Rubber */
- tool = BTN_TOOL_RUBBER;
- break;
-
- case 2: /* Mouse with wheel */
- case 3: /* Mouse without wheel */
- tool = BTN_TOOL_MOUSE;
- break;
- }
-
- /* Reset tool if out of active tablet area */
- if (!(data[1] & 0x10))
- tool = 0;
- }
-
- /* If tool changed, notify input subsystem */
- if (wdata->tool != tool) {
- if (wdata->tool) {
- /* Completely reset old tool state */
- if (wdata->tool == BTN_TOOL_MOUSE) {
- input_report_key(input, BTN_LEFT, 0);
- input_report_key(input, BTN_RIGHT, 0);
- input_report_key(input, BTN_MIDDLE, 0);
- input_report_abs(input, ABS_DISTANCE,
- input_abs_get_max(input, ABS_DISTANCE));
- } else {
- input_report_key(input, BTN_TOUCH, 0);
- input_report_key(input, BTN_STYLUS, 0);
- input_report_key(input, BTN_STYLUS2, 0);
- input_report_abs(input, ABS_PRESSURE, 0);
- }
- input_report_key(input, wdata->tool, 0);
- input_sync(input);
- }
- wdata->tool = tool;
- if (tool)
- input_report_key(input, tool, 1);
- }
-
- if (tool) {
- input_report_abs(input, ABS_X, x);
- input_report_abs(input, ABS_Y, y);
-
- switch ((data[1] >> 5) & 3) {
- case 2: /* Mouse with wheel */
- input_report_key(input, BTN_MIDDLE, data[1] & 0x04);
- rw = (data[6] & 0x01) ? -1 :
- (data[6] & 0x02) ? 1 : 0;
- input_report_rel(input, REL_WHEEL, rw);
- /* fall through */
-
- case 3: /* Mouse without wheel */
- input_report_key(input, BTN_LEFT, data[1] & 0x01);
- input_report_key(input, BTN_RIGHT, data[1] & 0x02);
- /* Compute distance between mouse and tablet */
- rw = 44 - (data[6] >> 2);
- if (rw < 0)
- rw = 0;
- else if (rw > 31)
- rw = 31;
- input_report_abs(input, ABS_DISTANCE, rw);
- break;
-
- default:
- input_report_abs(input, ABS_PRESSURE,
- data[6] | (((__u16) (data[1] & 0x08)) << 5));
- input_report_key(input, BTN_TOUCH, data[1] & 0x01);
- input_report_key(input, BTN_STYLUS, data[1] & 0x02);
- input_report_key(input, BTN_STYLUS2, (tool == BTN_TOOL_PEN) && data[1] & 0x04);
- break;
- }
-
- input_sync(input);
- }
-
- /* Report the state of the two buttons at the top of the tablet
- * as two extra fingerpad keys (buttons 4 & 5). */
- rw = data[7] & 0x03;
- if (rw != wdata->butstate) {
- wdata->butstate = rw;
- input_report_key(input, BTN_0, rw & 0x02);
- input_report_key(input, BTN_1, rw & 0x01);
- input_report_key(input, BTN_TOOL_FINGER, 0xf0);
- input_event(input, EV_MSC, MSC_SERIAL, 0xf0);
- input_sync(input);
- }
-
- /* Store current battery capacity and power supply state*/
- rw = (data[7] >> 2 & 0x07);
- if (rw != wdata->power_raw) {
- wdata->power_raw = rw;
- wdata->battery_capacity = batcap_gr[rw];
- if (rw == 7)
- wdata->ps_connected = 1;
- else
- wdata->ps_connected = 0;
- }
- return 1;
-}
-
-static void wacom_i4_parse_button_report(struct wacom_data *wdata,
- struct input_dev *input, unsigned char *data)
-{
- __u16 new_butstate;
- __u8 new_whlstate;
- __u8 sync = 0;
-
- new_whlstate = data[1];
- if (new_whlstate != wdata->whlstate) {
- wdata->whlstate = new_whlstate;
- if (new_whlstate & 0x80) {
- input_report_key(input, BTN_TOUCH, 1);
- input_report_abs(input, ABS_WHEEL, (new_whlstate & 0x7f));
- input_report_key(input, BTN_TOOL_FINGER, 1);
- } else {
- input_report_key(input, BTN_TOUCH, 0);
- input_report_abs(input, ABS_WHEEL, 0);
- input_report_key(input, BTN_TOOL_FINGER, 0);
- }
- sync = 1;
- }
-
- new_butstate = (data[3] << 1) | (data[2] & 0x01);
- if (new_butstate != wdata->butstate) {
- wdata->butstate = new_butstate;
- input_report_key(input, BTN_0, new_butstate & 0x001);
- input_report_key(input, BTN_1, new_butstate & 0x002);
- input_report_key(input, BTN_2, new_butstate & 0x004);
- input_report_key(input, BTN_3, new_butstate & 0x008);
- input_report_key(input, BTN_4, new_butstate & 0x010);
- input_report_key(input, BTN_5, new_butstate & 0x020);
- input_report_key(input, BTN_6, new_butstate & 0x040);
- input_report_key(input, BTN_7, new_butstate & 0x080);
- input_report_key(input, BTN_8, new_butstate & 0x100);
- input_report_key(input, BTN_TOOL_FINGER, 1);
- sync = 1;
- }
-
- if (sync) {
- input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
- input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
- input_sync(input);
- }
-}
-
-static void wacom_i4_parse_pen_report(struct wacom_data *wdata,
- struct input_dev *input, unsigned char *data)
-{
- __u16 x, y, pressure;
- __u8 distance;
- __u8 tilt_x, tilt_y;
-
- switch (data[1]) {
- case 0x80: /* Out of proximity report */
- input_report_key(input, BTN_TOUCH, 0);
- input_report_abs(input, ABS_PRESSURE, 0);
- input_report_key(input, BTN_STYLUS, 0);
- input_report_key(input, BTN_STYLUS2, 0);
- input_report_key(input, wdata->tool, 0);
- input_report_abs(input, ABS_MISC, 0);
- input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);
- wdata->tool = 0;
- input_sync(input);
- break;
- case 0xC2: /* Tool report */
- wdata->id = ((data[2] << 4) | (data[3] >> 4) |
- ((data[7] & 0x0f) << 20) |
- ((data[8] & 0xf0) << 12));
- wdata->serial = ((data[3] & 0x0f) << 28) +
- (data[4] << 20) + (data[5] << 12) +
- (data[6] << 4) + (data[7] >> 4);
-
- switch (wdata->id) {
- case 0x100802:
- wdata->tool = BTN_TOOL_PEN;
- break;
- case 0x10080A:
- wdata->tool = BTN_TOOL_RUBBER;
- break;
- }
- break;
- default: /* Position/pressure report */
- x = data[2] << 9 | data[3] << 1 | ((data[9] & 0x02) >> 1);
- y = data[4] << 9 | data[5] << 1 | (data[9] & 0x01);
- pressure = (data[6] << 3) | ((data[7] & 0xC0) >> 5)
- | (data[1] & 0x01);
- distance = (data[9] >> 2) & 0x3f;
- tilt_x = ((data[7] << 1) & 0x7e) | (data[8] >> 7);
- tilt_y = data[8] & 0x7f;
-
- input_report_key(input, BTN_TOUCH, pressure > 1);
-
- input_report_key(input, BTN_STYLUS, data[1] & 0x02);
- input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
- input_report_key(input, wdata->tool, 1);
- input_report_abs(input, ABS_X, x);
- input_report_abs(input, ABS_Y, y);
- input_report_abs(input, ABS_PRESSURE, pressure);
- input_report_abs(input, ABS_DISTANCE, distance);
- input_report_abs(input, ABS_TILT_X, tilt_x);
- input_report_abs(input, ABS_TILT_Y, tilt_y);
- input_report_abs(input, ABS_MISC, wdata->id);
- input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);
- input_report_key(input, wdata->tool, 1);
- input_sync(input);
- break;
- }
-
- return;
-}
-
-static void wacom_i4_parse_report(struct hid_device *hdev,
- struct wacom_data *wdata,
- struct input_dev *input, unsigned char *data)
-{
- switch (data[0]) {
- case 0x00: /* Empty report */
- break;
- case 0x02: /* Pen report */
- wacom_i4_parse_pen_report(wdata, input, data);
- break;
- case 0x03: /* Features Report */
- wdata->features = data[2];
- break;
- case 0x0C: /* Button report */
- wacom_i4_parse_button_report(wdata, input, data);
- break;
- default:
- hid_err(hdev, "Unknown report: %d,%d\n", data[0], data[1]);
- break;
- }
-}
-
-static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
- u8 *raw_data, int size)
-{
- struct wacom_data *wdata = hid_get_drvdata(hdev);
- struct hid_input *hidinput;
- struct input_dev *input;
- unsigned char *data = (unsigned char *) raw_data;
- int i;
- __u8 power_raw;
-
- if (!(hdev->claimed & HID_CLAIMED_INPUT))
- return 0;
-
- hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
- input = hidinput->input;
-
- switch (hdev->product) {
- case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
- if (data[0] == 0x03) {
- return wacom_gr_parse_report(hdev, wdata, input, data);
- } else {
- hid_err(hdev, "Unknown report: %d,%d size:%d\n",
- data[0], data[1], size);
- return 0;
- }
- break;
- case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
- i = 1;
-
- switch (data[0]) {
- case 0x04:
- wacom_i4_parse_report(hdev, wdata, input, data + i);
- i += 10;
- /* fall through */
- case 0x03:
- wacom_i4_parse_report(hdev, wdata, input, data + i);
- i += 10;
- wacom_i4_parse_report(hdev, wdata, input, data + i);
- power_raw = data[i+10];
- if (power_raw != wdata->power_raw) {
- wdata->power_raw = power_raw;
- wdata->battery_capacity = batcap_i4[power_raw & 0x07];
- wdata->bat_charging = (power_raw & 0x08) ? 1 : 0;
- wdata->ps_connected = (power_raw & 0x10) ? 1 : 0;
- }
-
- break;
- default:
- hid_err(hdev, "Unknown report: %d,%d size:%d\n",
- data[0], data[1], size);
- return 0;
- }
- }
- return 1;
-}
-
-static int wacom_input_mapped(struct hid_device *hdev, struct hid_input *hi,
- struct hid_field *field, struct hid_usage *usage, unsigned long **bit,
- int *max)
-{
- struct input_dev *input = hi->input;
-
- __set_bit(INPUT_PROP_POINTER, input->propbit);
-
- /* Basics */
- input->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_REL);
-
- __set_bit(REL_WHEEL, input->relbit);
-
- __set_bit(BTN_TOOL_PEN, input->keybit);
- __set_bit(BTN_TOUCH, input->keybit);
- __set_bit(BTN_STYLUS, input->keybit);
- __set_bit(BTN_STYLUS2, input->keybit);
- __set_bit(BTN_LEFT, input->keybit);
- __set_bit(BTN_RIGHT, input->keybit);
- __set_bit(BTN_MIDDLE, input->keybit);
-
- /* Pad */
- input_set_capability(input, EV_MSC, MSC_SERIAL);
-
- __set_bit(BTN_0, input->keybit);
- __set_bit(BTN_1, input->keybit);
- __set_bit(BTN_TOOL_FINGER, input->keybit);
-
- /* Distance, rubber and mouse */
- __set_bit(BTN_TOOL_RUBBER, input->keybit);
- __set_bit(BTN_TOOL_MOUSE, input->keybit);
-
- switch (hdev->product) {
- case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
- input_set_abs_params(input, ABS_X, 0, 16704, 4, 0);
- input_set_abs_params(input, ABS_Y, 0, 12064, 4, 0);
- input_set_abs_params(input, ABS_PRESSURE, 0, 511, 0, 0);
- input_set_abs_params(input, ABS_DISTANCE, 0, 32, 0, 0);
- break;
- case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
- __set_bit(ABS_WHEEL, input->absbit);
- __set_bit(ABS_MISC, input->absbit);
- __set_bit(BTN_2, input->keybit);
- __set_bit(BTN_3, input->keybit);
- __set_bit(BTN_4, input->keybit);
- __set_bit(BTN_5, input->keybit);
- __set_bit(BTN_6, input->keybit);
- __set_bit(BTN_7, input->keybit);
- __set_bit(BTN_8, input->keybit);
- input_set_abs_params(input, ABS_WHEEL, 0, 71, 0, 0);
- input_set_abs_params(input, ABS_X, 0, 40640, 4, 0);
- input_set_abs_params(input, ABS_Y, 0, 25400, 4, 0);
- input_set_abs_params(input, ABS_PRESSURE, 0, 2047, 0, 0);
- input_set_abs_params(input, ABS_DISTANCE, 0, 63, 0, 0);
- input_set_abs_params(input, ABS_TILT_X, 0, 127, 0, 0);
- input_set_abs_params(input, ABS_TILT_Y, 0, 127, 0, 0);
- break;
- }
-
- return 0;
-}
-
-static int wacom_probe(struct hid_device *hdev,
- const struct hid_device_id *id)
-{
- struct wacom_data *wdata;
- int ret;
-
- wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
- if (wdata == NULL) {
- hid_err(hdev, "can't alloc wacom descriptor\n");
- return -ENOMEM;
- }
-
- hid_set_drvdata(hdev, wdata);
-
- /* Parse the HID report now */
- ret = hid_parse(hdev);
- if (ret) {
- hid_err(hdev, "parse failed\n");
- goto err_free;
- }
-
- ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
- if (ret) {
- hid_err(hdev, "hw start failed\n");
- goto err_free;
- }
-
- ret = device_create_file(&hdev->dev, &dev_attr_speed);
- if (ret)
- hid_warn(hdev,
- "can't create sysfs speed attribute err: %d\n", ret);
-
-#define OLED_INIT(OLED_ID) \
- do { \
- ret = device_create_file(&hdev->dev, \
- &dev_attr_oled##OLED_ID##_img); \
- if (ret) \
- hid_warn(hdev, \
- "can't create sysfs oled attribute, err: %d\n", ret);\
- } while (0)
-
-OLED_INIT(0);
-OLED_INIT(1);
-OLED_INIT(2);
-OLED_INIT(3);
-OLED_INIT(4);
-OLED_INIT(5);
-OLED_INIT(6);
-OLED_INIT(7);
-
- wdata->features = 0;
- wacom_set_features(hdev, 1);
-
- if (hdev->product == USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) {
- sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
- ret = wacom_initialize_leds(hdev);
- if (ret)
- hid_warn(hdev,
- "can't create led attribute, err: %d\n", ret);
- }
-
- wdata->battery.properties = wacom_battery_props;
- wdata->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
- wdata->battery.get_property = wacom_battery_get_property;
- wdata->battery.name = "wacom_battery";
- wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
- wdata->battery.use_for_apm = 0;
-
-
- ret = power_supply_register(&hdev->dev, &wdata->battery);
- if (ret) {
- hid_err(hdev, "can't create sysfs battery attribute, err: %d\n",
- ret);
- goto err_battery;
- }
-
- power_supply_powers(&wdata->battery, &hdev->dev);
-
- wdata->ac.properties = wacom_ac_props;
- wdata->ac.num_properties = ARRAY_SIZE(wacom_ac_props);
- wdata->ac.get_property = wacom_ac_get_property;
- wdata->ac.name = "wacom_ac";
- wdata->ac.type = POWER_SUPPLY_TYPE_MAINS;
- wdata->ac.use_for_apm = 0;
-
- ret = power_supply_register(&hdev->dev, &wdata->ac);
- if (ret) {
- hid_err(hdev,
- "can't create ac battery attribute, err: %d\n", ret);
- goto err_ac;
- }
-
- power_supply_powers(&wdata->ac, &hdev->dev);
- return 0;
-
-err_ac:
- power_supply_unregister(&wdata->battery);
-err_battery:
- wacom_destroy_leds(hdev);
- device_remove_file(&hdev->dev, &dev_attr_oled0_img);
- device_remove_file(&hdev->dev, &dev_attr_oled1_img);
- device_remove_file(&hdev->dev, &dev_attr_oled2_img);
- device_remove_file(&hdev->dev, &dev_attr_oled3_img);
- device_remove_file(&hdev->dev, &dev_attr_oled4_img);
- device_remove_file(&hdev->dev, &dev_attr_oled5_img);
- device_remove_file(&hdev->dev, &dev_attr_oled6_img);
- device_remove_file(&hdev->dev, &dev_attr_oled7_img);
- device_remove_file(&hdev->dev, &dev_attr_speed);
- hid_hw_stop(hdev);
-err_free:
- kfree(wdata);
- return ret;
-}
-
-static void wacom_remove(struct hid_device *hdev)
-{
- struct wacom_data *wdata = hid_get_drvdata(hdev);
-
- wacom_destroy_leds(hdev);
- device_remove_file(&hdev->dev, &dev_attr_oled0_img);
- device_remove_file(&hdev->dev, &dev_attr_oled1_img);
- device_remove_file(&hdev->dev, &dev_attr_oled2_img);
- device_remove_file(&hdev->dev, &dev_attr_oled3_img);
- device_remove_file(&hdev->dev, &dev_attr_oled4_img);
- device_remove_file(&hdev->dev, &dev_attr_oled5_img);
- device_remove_file(&hdev->dev, &dev_attr_oled6_img);
- device_remove_file(&hdev->dev, &dev_attr_oled7_img);
- device_remove_file(&hdev->dev, &dev_attr_speed);
- hid_hw_stop(hdev);
-
- power_supply_unregister(&wdata->battery);
- power_supply_unregister(&wdata->ac);
- kfree(hid_get_drvdata(hdev));
-}
-
-static const struct hid_device_id wacom_devices[] = {
-
- { }
-};
-MODULE_DEVICE_TABLE(hid, wacom_devices);
-
-static struct hid_driver wacom_driver = {
- .name = "hid-wacom",
- .id_table = wacom_devices,
- .probe = wacom_probe,
- .remove = wacom_remove,
- .raw_event = wacom_raw_event,
- .input_mapped = wacom_input_mapped,
-};
-module_hid_driver(wacom_driver);
-
-MODULE_DESCRIPTION("Driver for Wacom Graphire Bluetooth and Wacom Intuos4 WL");
-MODULE_LICENSE("GPL");
--
2.0.0

2014-07-10 18:45:54

by Benjamin Tissoires

[permalink] [raw]
Subject: [PATCH 4/5] Input - wacom: handle Intuos 4 BT in wacom.ko

Now that wacom is a hid driver, there is no point in having a separate
driver for bluetooth devices.

Another good point of this is that now, the Intuos4 bluetooth can handle
the different tools (artpen, airbrush), and we get a common interface
between USB and BT for accessing the LEDs/OLEDs.

Signed-off-by: Benjamin Tissoires <[email protected]>
---
drivers/hid/hid-core.c | 1 -
drivers/hid/hid-wacom.c | 1 -
drivers/input/tablet/wacom_sys.c | 22 ++++++++++--
drivers/input/tablet/wacom_wac.c | 73 ++++++++++++++++++++++++++++++++++++++++
drivers/input/tablet/wacom_wac.h | 1 +
5 files changed, 94 insertions(+), 4 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 22be644..7c02e77 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1940,7 +1940,6 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 967c457..db2d07d 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -952,7 +952,6 @@ static void wacom_remove(struct hid_device *hdev)
}

static const struct hid_device_id wacom_devices[] = {
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },

{ }
};
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 86db1dc..c107a34 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -305,6 +305,20 @@ static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
hid_warn(hdev, "failed to poke device, command %d, err %d\n",
rep_data[0], ret);
break;
+ case INTUOS4WL:
+ if (speed == 1)
+ wacom->wacom_wac.bt_features &= ~0x20;
+ else
+ wacom->wacom_wac.bt_features |= 0x20;
+
+ rep_data[0] = 0x03;
+ rep_data[1] = wacom->wacom_wac.bt_features;
+
+ ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
+ HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+ if (ret >= 0)
+ wacom->wacom_wac.bt_high_speed = speed;
+ break;
}

return 0;
@@ -726,6 +740,7 @@ static int wacom_initialize_leds(struct wacom *wacom)
switch (wacom->wacom_wac.features.type) {
case INTUOS4S:
case INTUOS4:
+ case INTUOS4WL:
case INTUOS4L:
wacom->led.select[0] = 0;
wacom->led.select[1] = 0;
@@ -792,6 +807,7 @@ static void wacom_destroy_leds(struct wacom *wacom)
switch (wacom->wacom_wac.features.type) {
case INTUOS4S:
case INTUOS4:
+ case INTUOS4WL:
case INTUOS4L:
sysfs_remove_group(&wacom->hdev->dev.kobj,
&intuos4_led_attr_group);
@@ -860,7 +876,8 @@ static int wacom_initialize_battery(struct wacom *wacom, const char *name)
int i;

if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) ||
- (wacom->wacom_wac.features.type == GRAPHIRE_BT)) {
+ (wacom->wacom_wac.features.type == GRAPHIRE_BT) ||
+ (wacom->wacom_wac.features.type == INTUOS4WL)) {
wacom->battery.properties = wacom_battery_props;
wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
wacom->battery.get_property = wacom_battery_get_property;
@@ -887,7 +904,8 @@ static int wacom_initialize_battery(struct wacom *wacom, const char *name)
static void wacom_destroy_battery(struct wacom *wacom)
{
if (((wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) ||
- (wacom->wacom_wac.features.type == GRAPHIRE_BT)) &&
+ (wacom->wacom_wac.features.type == GRAPHIRE_BT) ||
+ (wacom->wacom_wac.features.type == INTUOS4WL)) &&
wacom->battery.dev) {
power_supply_unregister(&wacom->battery);
wacom->battery.dev = NULL;
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 20fc356..3101cc8 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -34,6 +34,9 @@
8th value means AC online and show 100% capacity */
static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };

+/*percent of battery capacity for Intuos4 WL, AC has a separate bit*/
+static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
+
static int wacom_penpartner_irq(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
@@ -953,6 +956,58 @@ static int int_dist(int x1, int y1, int x2, int y2)
return int_sqrt(x*x + y*y);
}

+static void wacom_intuos_bt_process_data(struct wacom_wac *wacom,
+ unsigned char *data)
+{
+ memcpy(wacom->data, data, 10);
+ wacom_intuos_irq(wacom);
+
+ input_sync(wacom->input);
+ if (wacom->pad_input)
+ input_sync(wacom->pad_input);
+}
+
+static int wacom_intuos_bt_irq(struct wacom_wac *wacom, size_t len)
+{
+ unsigned char data[WACOM_PKGLEN_MAX];
+ int i = 1;
+ unsigned power_raw, battery_capacity, bat_charging, ps_connected;
+
+ memcpy(data, wacom->data, len);
+
+ switch (data[0]) {
+ case 0x04:
+ wacom_intuos_bt_process_data(wacom, data + i);
+ i += 10;
+ /* fall through */
+ case 0x03:
+ wacom_intuos_bt_process_data(wacom, data + i);
+ i += 10;
+ wacom_intuos_bt_process_data(wacom, data + i);
+ i += 10;
+ power_raw = data[i];
+ bat_charging = (power_raw & 0x08) ? 1 : 0;
+ ps_connected = (power_raw & 0x10) ? 1 : 0;
+ battery_capacity = batcap_i4[power_raw & 0x07];
+ if ((wacom->battery_capacity != battery_capacity) ||
+ (wacom->bat_charging != bat_charging) ||
+ (wacom->ps_connected != ps_connected)) {
+ wacom->battery_capacity = battery_capacity;
+ wacom->bat_charging = bat_charging;
+ wacom->ps_connected = ps_connected;
+ wacom_notify_battery(wacom);
+ }
+
+ break;
+ default:
+ dev_dbg(wacom->input->dev.parent,
+ "Unknown report: %d,%d size:%li\n",
+ data[0], data[1], len);
+ return 0;
+ }
+ return 0;
+}
+
static int wacom_24hdt_irq(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->input;
@@ -1512,6 +1567,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
sync = wacom_intuos_irq(wacom_wac);
break;

+ case INTUOS4WL:
+ sync = wacom_intuos_bt_irq(wacom_wac, len);
+ break;
+
case WACOM_24HDT:
sync = wacom_24hdt_irq(wacom_wac);
break;
@@ -1801,6 +1860,7 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
break;

case INTUOS4:
+ case INTUOS4WL:
case INTUOS4L:
case INTUOS4S:
input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
@@ -2063,6 +2123,15 @@ int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
break;

+ case INTUOS4WL:
+ /*
+ * For Bluetooth devices, the udev rule does not work correctly
+ * for pads unless we add a stylus capability, which forces
+ * ID_INPUT_TABLET to be set.
+ */
+ __set_bit(BTN_STYLUS, input_dev->keybit);
+ /* fall through */
+
case INTUOS4:
case INTUOS4L:
__set_bit(BTN_7, input_dev->keybit);
@@ -2277,6 +2346,9 @@ static const struct wacom_features wacom_features_0xBB =
static const struct wacom_features wacom_features_0xBC =
{ "Wacom Intuos4 WL", 40640, 25400, 2047, 63,
INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xBD =
+ { "Wacom Intuos4 WL", 40640, 25400, 2047, 63,
+ INTUOS4WL, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
static const struct wacom_features wacom_features_0x26 =
{ "Wacom Intuos5 touch S", 31496, 19685, 2047, 63,
INTUOS5S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .touch_max = 16 };
@@ -2593,6 +2665,7 @@ const struct hid_device_id wacom_ids[] = {
{ USB_DEVICE_WACOM(0xBA) },
{ USB_DEVICE_WACOM(0xBB) },
{ USB_DEVICE_WACOM(0xBC) },
+ { BT_DEVICE_WACOM(0xBD) },
{ USB_DEVICE_WACOM(0xC0) },
{ USB_DEVICE_WACOM(0xC2) },
{ USB_DEVICE_WACOM(0xC4) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index b4a2262..3b3a40c 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -85,6 +85,7 @@ enum {
INTUOS3L,
INTUOS4S,
INTUOS4,
+ INTUOS4WL,
INTUOS4L,
INTUOS5S,
INTUOS5,
--
2.0.0

2014-07-10 18:45:52

by Benjamin Tissoires

[permalink] [raw]
Subject: [PATCH 1/5] Input - wacom: enhance Wireless Receiver battery reporting

- Reports the current status of the battery (discharging, cherging, full).
- Also notify the upower daemon when there is a change in the battery
value.
- keep the battery value as a percentage, not the raw value

Signed-off-by: Benjamin Tissoires <[email protected]>
---
drivers/input/tablet/wacom.h | 6 ++++++
drivers/input/tablet/wacom_sys.c | 13 ++++++++++++-
drivers/input/tablet/wacom_wac.c | 18 +++++++++++++++---
drivers/input/tablet/wacom_wac.h | 2 ++
4 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
index a678f82..99516ba 100644
--- a/drivers/input/tablet/wacom.h
+++ b/drivers/input/tablet/wacom.h
@@ -128,6 +128,12 @@ static inline void wacom_schedule_work(struct wacom_wac *wacom_wac)
schedule_work(&wacom->work);
}

+static inline void wacom_notify_battery(struct wacom_wac *wacom_wac)
+{
+ struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
+ power_supply_changed(&wacom->battery);
+}
+
extern const struct hid_device_id wacom_ids[];

void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index fb2958e..1888709 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -766,6 +766,7 @@ static void wacom_destroy_leds(struct wacom *wacom)
}

static enum power_supply_property wacom_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_CAPACITY
};
@@ -783,7 +784,16 @@ static int wacom_battery_get_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval =
- wacom->wacom_wac.battery_capacity * 100 / 31;
+ wacom->wacom_wac.battery_capacity;
+ break;
+ case POWER_SUPPLY_PROP_STATUS:
+ if (wacom->wacom_wac.bat_charging)
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ else if (wacom->wacom_wac.battery_capacity == 100 &&
+ wacom->wacom_wac.ps_connected)
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ else
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
break;
default:
ret = -EINVAL;
@@ -944,6 +954,7 @@ static void wacom_wireless_work(struct work_struct *work)

if (wacom_wac->pid == 0) {
hid_info(wacom->hdev, "wireless tablet disconnected\n");
+ wacom_wac1->shared->type = 0;
} else {
const struct hid_device_id *id = wacom_ids;

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index cd91521..d935f75 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1365,7 +1365,7 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)

connected = data[1] & 0x01;
if (connected) {
- int pid, battery;
+ int pid, battery, ps_connected;

if ((wacom->shared->type == INTUOSHT) &&
wacom->shared->touch_max) {
@@ -1375,17 +1375,29 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
}

pid = get_unaligned_be16(&data[6]);
- battery = data[5] & 0x3f;
+ battery = (data[5] & 0x3f) * 100 / 31;
+ ps_connected = data[5] & 0x80;
if (wacom->pid != pid) {
wacom->pid = pid;
wacom_schedule_work(wacom);
}
- wacom->battery_capacity = battery;
+
+ if (wacom->shared->type &&
+ ((battery != wacom->battery_capacity) ||
+ (ps_connected != wacom->ps_connected))) {
+ wacom->battery_capacity = battery;
+ wacom->ps_connected = ps_connected;
+ wacom->bat_charging = ps_connected &&
+ wacom->battery_capacity < 100;
+ wacom_notify_battery(wacom);
+ }
} else if (wacom->pid != 0) {
/* disconnected while previously connected */
wacom->pid = 0;
wacom_schedule_work(wacom);
wacom->battery_capacity = 0;
+ wacom->bat_charging = 0;
+ wacom->ps_connected = 0;
}

return 0;
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 4c59247..68cf257 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -164,6 +164,8 @@ struct wacom_wac {
int pid;
int battery_capacity;
int num_contacts_left;
+ int bat_charging;
+ int ps_connected;
};

#endif
--
2.0.0

2014-07-10 18:46:32

by Benjamin Tissoires

[permalink] [raw]
Subject: [PATCH 3/5] Input - wacom: handle Graphire BT tablets in wacom.ko

Now that wacom is a hid driver, there is no point in having a separate
driver for bluetooth device.
First, merge the Graphire BT tablet.

Signed-off-by: Benjamin Tissoires <[email protected]>
---
drivers/hid/hid-core.c | 1 -
drivers/hid/hid-wacom.c | 1 -
drivers/input/tablet/wacom_sys.c | 70 ++++++++++++++++++++++++++--
drivers/input/tablet/wacom_wac.c | 98 +++++++++++++++++++++++++++++++++++++++-
drivers/input/tablet/wacom_wac.h | 4 ++
5 files changed, 165 insertions(+), 9 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9db1f42..22be644 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1940,7 +1940,6 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 4874f4e..967c457 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -952,7 +952,6 @@ static void wacom_remove(struct hid_device *hdev)
}

static const struct hid_device_id wacom_devices[] = {
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },

{ }
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index b5d75a4..86db1dc 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -262,6 +262,54 @@ static int wacom_set_device_mode(struct hid_device *hdev, int report_id,
return error < 0 ? error : 0;
}

+static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
+ struct wacom_features *features)
+{
+ struct wacom *wacom = hid_get_drvdata(hdev);
+ int limit, ret;
+ __u8 rep_data[2];
+
+ switch (features->type) {
+ case GRAPHIRE_BT:
+ rep_data[0] = 0x03 ; rep_data[1] = 0x00;
+ limit = 3;
+ do {
+ ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
+ HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+ } while (ret < 0 && limit-- > 0);
+
+ if (ret >= 0) {
+ if (speed == 0)
+ rep_data[0] = 0x05;
+ else
+ rep_data[0] = 0x06;
+
+ rep_data[1] = 0x00;
+ limit = 3;
+ do {
+ ret = hid_hw_raw_request(hdev, rep_data[0],
+ rep_data, 2, HID_FEATURE_REPORT,
+ HID_REQ_SET_REPORT);
+ } while (ret < 0 && limit-- > 0);
+
+ if (ret >= 0) {
+ wacom->wacom_wac.bt_high_speed = speed;
+ return 0;
+ }
+ }
+
+ /*
+ * Note that if the raw queries fail, it's not a hard failure
+ * and it is safe to continue
+ */
+ hid_warn(hdev, "failed to poke device, command %d, err %d\n",
+ rep_data[0], ret);
+ break;
+ }
+
+ return 0;
+}
+
/*
* Switch the tablet into its most-capable mode. Wacom tablets are
* typically configured to power-up in a mode which sends mouse-like
@@ -272,6 +320,9 @@ static int wacom_set_device_mode(struct hid_device *hdev, int report_id,
static int wacom_query_tablet_data(struct hid_device *hdev,
struct wacom_features *features)
{
+ if (hdev->bus == BUS_BLUETOOTH)
+ return wacom_bt_query_tablet_data(hdev, 1, features);
+
if (features->device_type == BTN_TOOL_FINGER) {
if (features->type > TABLETPC) {
/* MT Tablet PC touch */
@@ -808,7 +859,8 @@ static int wacom_initialize_battery(struct wacom *wacom, const char *name)
int error = 0;
int i;

- if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) {
+ if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) ||
+ (wacom->wacom_wac.features.type == GRAPHIRE_BT)) {
wacom->battery.properties = wacom_battery_props;
wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
wacom->battery.get_property = wacom_battery_get_property;
@@ -834,7 +886,8 @@ static int wacom_initialize_battery(struct wacom *wacom, const char *name)

static void wacom_destroy_battery(struct wacom *wacom)
{
- if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR &&
+ if (((wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) ||
+ (wacom->wacom_wac.features.type == GRAPHIRE_BT)) &&
wacom->battery.dev) {
power_supply_unregister(&wacom->battery);
wacom->battery.dev = NULL;
@@ -1194,10 +1247,16 @@ static int wacom_probe(struct hid_device *hdev,
if (error)
goto fail2;

+ if (!(features->quirks & WACOM_QUIRK_MONITOR)) {
+ error = wacom_initialize_battery(wacom, features->name);
+ if (error)
+ goto fail3;
+ }
+
if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
error = wacom_register_inputs(wacom);
if (error)
- goto fail3;
+ goto fail4;
}

/* Note that if query fails it is not a hard failure */
@@ -1207,7 +1266,7 @@ static int wacom_probe(struct hid_device *hdev,
error = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (error) {
hid_err(hdev, "hw start failed\n");
- goto fail4;
+ goto fail5;
}

if (features->quirks & WACOM_QUIRK_MONITOR)
@@ -1220,7 +1279,8 @@ static int wacom_probe(struct hid_device *hdev,

return 0;

- fail4: wacom_unregister_inputs(wacom);
+ fail5: wacom_unregister_inputs(wacom);
+ fail4: wacom_destroy_battery(wacom);
fail3: wacom_destroy_leds(wacom);
fail2: wacom_remove_shared_data(wacom_wac);
fail1: kfree(wacom);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index d935f75..20fc356 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -30,6 +30,10 @@
*/
#define WACOM_CONTACT_AREA_SCALE 2607

+/*percent of battery capacity for Graphire
+ 8th value means AC online and show 100% capacity */
+static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
+
static int wacom_penpartner_irq(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
@@ -263,11 +267,19 @@ static int wacom_graphire_irq(struct wacom_wac *wacom)
unsigned char *data = wacom->data;
struct input_dev *input = wacom->input;
struct input_dev *pad_input = wacom->pad_input;
+ int battery_capacity, ps_connected;
int prox;
int rw = 0;
int retval = 0;

- if (data[0] != WACOM_REPORT_PENABLED) {
+ if (features->type == GRAPHIRE_BT) {
+ if (data[0] != WACOM_REPORT_PENABLED_BT) {
+ dev_dbg(input->dev.parent,
+ "%s: received unknown report #%d\n", __func__,
+ data[0]);
+ goto exit;
+ }
+ } else if (data[0] != WACOM_REPORT_PENABLED) {
dev_dbg(input->dev.parent,
"%s: received unknown report #%d\n", __func__, data[0]);
goto exit;
@@ -301,7 +313,12 @@ static int wacom_graphire_irq(struct wacom_wac *wacom)
input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
if (wacom->tool[0] != BTN_TOOL_MOUSE) {
- input_report_abs(input, ABS_PRESSURE, data[6] | ((data[7] & 0x03) << 8));
+ if (features->type == GRAPHIRE_BT)
+ input_report_abs(input, ABS_PRESSURE, data[6] |
+ (((__u16) (data[1] & 0x08)) << 5));
+ else
+ input_report_abs(input, ABS_PRESSURE, data[6] |
+ ((data[7] & 0x03) << 8));
input_report_key(input, BTN_TOUCH, data[1] & 0x01);
input_report_key(input, BTN_STYLUS, data[1] & 0x02);
input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
@@ -312,6 +329,23 @@ static int wacom_graphire_irq(struct wacom_wac *wacom)
features->type == WACOM_MO) {
input_report_abs(input, ABS_DISTANCE, data[6] & 0x3f);
rw = (data[7] & 0x04) - (data[7] & 0x03);
+ } else if (features->type == GRAPHIRE_BT) {
+ /* Compute distance between mouse and tablet */
+ rw = 44 - (data[6] >> 2);
+ if (rw < 0)
+ rw = 0;
+ else if (rw > 31)
+ rw = 31;
+ input_report_abs(input, ABS_DISTANCE, rw);
+ if (((data[1] >> 5) & 3) == 2) {
+ /* Mouse with wheel */
+ input_report_key(input, BTN_MIDDLE,
+ data[1] & 0x04);
+ rw = (data[6] & 0x01) ? -1 :
+ (data[6] & 0x02) ? 1 : 0;
+ } else {
+ rw = 0;
+ }
} else {
input_report_abs(input, ABS_DISTANCE, data[7] & 0x3f);
rw = -(signed char)data[6];
@@ -358,6 +392,31 @@ static int wacom_graphire_irq(struct wacom_wac *wacom)
retval = 1;
}
break;
+ case GRAPHIRE_BT:
+ prox = data[7] & 0x03;
+ if (prox || wacom->id[1]) {
+ wacom->id[1] = PAD_DEVICE_ID;
+ input_report_key(pad_input, BTN_0, (data[7] & 0x02));
+ input_report_key(pad_input, BTN_1, (data[7] & 0x01));
+ if (!prox)
+ wacom->id[1] = 0;
+ input_report_abs(pad_input, ABS_MISC, wacom->id[1]);
+ retval = 1;
+ }
+ break;
+ }
+
+ /* Store current battery capacity and power supply state */
+ if (features->type == GRAPHIRE_BT) {
+ rw = (data[7] >> 2 & 0x07);
+ battery_capacity = batcap_gr[rw];
+ ps_connected = rw == 7;
+ if ((wacom->battery_capacity != battery_capacity) ||
+ (wacom->ps_connected != ps_connected)) {
+ wacom->battery_capacity = battery_capacity;
+ wacom->ps_connected = ps_connected;
+ wacom_notify_battery(wacom);
+ }
}
exit:
return retval;
@@ -1418,6 +1477,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)

case WACOM_G4:
case GRAPHIRE:
+ case GRAPHIRE_BT:
case WACOM_MO:
sync = wacom_graphire_irq(wacom_wac);
break;
@@ -1652,6 +1712,27 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
break;

+ case GRAPHIRE_BT:
+ __clear_bit(ABS_MISC, input_dev->absbit);
+ input_set_abs_params(input_dev, ABS_DISTANCE, 0,
+ features->distance_max,
+ 0, 0);
+
+ input_set_capability(input_dev, EV_REL, REL_WHEEL);
+
+ __set_bit(BTN_LEFT, input_dev->keybit);
+ __set_bit(BTN_RIGHT, input_dev->keybit);
+ __set_bit(BTN_MIDDLE, input_dev->keybit);
+
+ __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+ __set_bit(BTN_TOOL_PEN, input_dev->keybit);
+ __set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
+ __set_bit(BTN_STYLUS, input_dev->keybit);
+ __set_bit(BTN_STYLUS2, input_dev->keybit);
+
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+ break;
+
case WACOM_24HD:
input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
input_set_abs_params(input_dev, ABS_THROTTLE, 0, 71, 0, 0);
@@ -1860,6 +1941,11 @@ int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
input_set_abs_params(input_dev, ABS_Y, 0, 1, 0, 0);

switch (features->type) {
+ case GRAPHIRE_BT:
+ __set_bit(BTN_0, input_dev->keybit);
+ __set_bit(BTN_1, input_dev->keybit);
+ break;
+
case WACOM_MO:
__set_bit(BTN_BACK, input_dev->keybit);
__set_bit(BTN_LEFT, input_dev->keybit);
@@ -2029,6 +2115,9 @@ static const struct wacom_features wacom_features_0x00 =
static const struct wacom_features wacom_features_0x10 =
{ "Wacom Graphire", 10206, 7422, 511, 63,
GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x81 =
+ { "Wacom Graphire BT", 16704, 12064, 511, 32,
+ GRAPHIRE_BT, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x11 =
{ "Wacom Graphire2 4x5", 10206, 7422, 511, 63,
GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
@@ -2424,6 +2513,10 @@ static const struct wacom_features wacom_features_0x309 =
HID_DEVICE(BUS_USB, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
.driver_data = (kernel_ulong_t)&wacom_features_##prod

+#define BT_DEVICE_WACOM(prod) \
+ HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
+ .driver_data = (kernel_ulong_t)&wacom_features_##prod
+
#define USB_DEVICE_LENOVO(prod) \
HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, prod), \
.driver_data = (kernel_ulong_t)&wacom_features_##prod
@@ -2481,6 +2574,7 @@ const struct hid_device_id wacom_ids[] = {
{ USB_DEVICE_WACOM(0x69) },
{ USB_DEVICE_WACOM(0x6A) },
{ USB_DEVICE_WACOM(0x6B) },
+ { BT_DEVICE_WACOM(0x81) },
{ USB_DEVICE_WACOM(0x84) },
{ USB_DEVICE_WACOM(0x90) },
{ USB_DEVICE_WACOM(0x93) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 7565be5..b4a2262 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -46,6 +46,7 @@

/* wacom data packet report IDs */
#define WACOM_REPORT_PENABLED 2
+#define WACOM_REPORT_PENABLED_BT 3
#define WACOM_REPORT_INTUOSREAD 5
#define WACOM_REPORT_INTUOSWRITE 6
#define WACOM_REPORT_INTUOSPAD 12
@@ -72,6 +73,7 @@
enum {
PENPARTNER = 0,
GRAPHIRE,
+ GRAPHIRE_BT,
WACOM_G4,
PTU,
PL,
@@ -167,6 +169,8 @@ struct wacom_wac {
int num_contacts_left;
int bat_charging;
int ps_connected;
+ __u8 bt_features;
+ __u8 bt_high_speed;
};

#endif
--
2.0.0

2014-07-10 23:32:37

by Przemo Firszt

[permalink] [raw]
Subject: Re: [PATCH 0/5] Input - wacom: battery enhancements and unifying hid-wacom and wacom

Dnia 2014-07-10, czw o godzinie 14:44 -0400, Benjamin Tissoires pisze:
[..]
Hi Benjamin,
> However, I did not backport the speed attribute and the ac power
> device (which
> is infered by the battery status). I don't know if there are users of
> those two,
> so I let them aside for now. Przemo, any ideas if this is actually
> used?
Both tablets that I had (Graphire Wireless and Intuos4 Wireless)
supports slow and fast reporting. Slow reporting is necessary with older
bluetooth receivers otherwise the lag between pen movement and cursor
movement made devices unusable.

I tried to expose all events reported by hardware and I think AC
reporting should stay in the kernel.

Intuos4 Wireless
AC power disconnected:
bash-4.2$ cat /sys/class/power_supply/wacom_ac/uevent
POWER_SUPPLY_NAME=wacom_ac
POWER_SUPPLY_PRESENT=0
POWER_SUPPLY_ONLINE=0
POWER_SUPPLY_SCOPE=Device
bash-4.2$ cat /sys/class/power_supply/wacom_battery/uevent
POWER_SUPPLY_NAME=wacom_battery
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_CAPACITY=85
POWER_SUPPLY_SCOPE=Device
POWER_SUPPLY_STATUS=Discharging

AC power connected:
bash-4.2$ cat /sys/class/power_supply/wacom_ac/uevent
POWER_SUPPLY_NAME=wacom_ac
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_ONLINE=1
POWER_SUPPLY_SCOPE=Device
bash-4.2$ cat /sys/class/power_supply/wacom_battery/uevent
POWER_SUPPLY_NAME=wacom_battery
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_CAPACITY=85
POWER_SUPPLY_SCOPE=Device
POWER_SUPPLY_STATUS=Charging
--
Kind regards,
Przemo Firszt

2014-07-11 13:13:04

by Benjamin Tissoires

[permalink] [raw]
Subject: Re: [PATCH 0/5] Input - wacom: battery enhancements and unifying hid-wacom and wacom

Hi Przemo,

On Thu, Jul 10, 2014 at 5:14 PM, Przemo Firszt <[email protected]> wrote:
> Dnia 2014-07-10, czw o godzinie 14:44 -0400, Benjamin Tissoires pisze:
> [..]
> Hi Benjamin,
>> However, I did not backport the speed attribute and the ac power
>> device (which
>> is infered by the battery status). I don't know if there are users of
>> those two,
>> so I let them aside for now. Przemo, any ideas if this is actually
>> used?
> Both tablets that I had (Graphire Wireless and Intuos4 Wireless)
> supports slow and fast reporting. Slow reporting is necessary with older
> bluetooth receivers otherwise the lag between pen movement and cursor
> movement made devices unusable.

Alright

>
> I tried to expose all events reported by hardware and I think AC
> reporting should stay in the kernel.

Ok, I'll send a v2 next week with these two things fixed.

Cheers,
Benjamin

>
> Intuos4 Wireless
> AC power disconnected:
> bash-4.2$ cat /sys/class/power_supply/wacom_ac/uevent
> POWER_SUPPLY_NAME=wacom_ac
> POWER_SUPPLY_PRESENT=0
> POWER_SUPPLY_ONLINE=0
> POWER_SUPPLY_SCOPE=Device
> bash-4.2$ cat /sys/class/power_supply/wacom_battery/uevent
> POWER_SUPPLY_NAME=wacom_battery
> POWER_SUPPLY_PRESENT=1
> POWER_SUPPLY_CAPACITY=85
> POWER_SUPPLY_SCOPE=Device
> POWER_SUPPLY_STATUS=Discharging
>
> AC power connected:
> bash-4.2$ cat /sys/class/power_supply/wacom_ac/uevent
> POWER_SUPPLY_NAME=wacom_ac
> POWER_SUPPLY_PRESENT=1
> POWER_SUPPLY_ONLINE=1
> POWER_SUPPLY_SCOPE=Device
> bash-4.2$ cat /sys/class/power_supply/wacom_battery/uevent
> POWER_SUPPLY_NAME=wacom_battery
> POWER_SUPPLY_PRESENT=1
> POWER_SUPPLY_CAPACITY=85
> POWER_SUPPLY_SCOPE=Device
> POWER_SUPPLY_STATUS=Charging
> --
> Kind regards,
> Przemo Firszt
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-input" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html

2014-07-19 21:15:58

by Przemo Firszt

[permalink] [raw]
Subject: Re: [PATCH 0/5] Input - wacom: battery enhancements and unifying hid-wacom and wacom

Dnia 2014-07-10, czw o godzinie 14:44 -0400, Benjamin Tissoires pisze:
> Hi guys,
>
> Continuing on the Wacom cleanup, here are 5 patches.
>
> The first two enhance the battery reporting for the Wireless receiver by
> adding the status of the battery (discharging, full, charging) - inspired by
> the code found in hid-wacom.c, and also by adding notifications to the power
> system so that upower knows when the battery changed.
>
> The last three are the handling of the two Wacom Bluetooth devices in wacom.ko.
> Some enhancements here:
> - Intuos4 now supports other tools than just the plain stylus (mouse, artpen, ...)
> - one less driver for Wacom (~700 lines of code less in total)
> - unifying access to LEDs/OLEDs from Bluetooth and USB devices
>
> However, I did not backport the speed attribute and the ac power device (which
> is infered by the battery status). I don't know if there are users of those two,
> so I let them aside for now. Przemo, any ideas if this is actually used?
>
> This whole code is based on top of the previous HID conversion patches.
> I pushed a branch with all I have queued on the list here:
> https://github.com/bentiss/linux/commits/hid-wacom-legacy-3.16-rc4
>
> Again, given that there has been no answer on how this can be merged upstream
> (Jiri? Dmitry?), I just piled those on top of the previous.
> I wouldn't to resplit the input and hid specific changes if this is the choice
> that is made.
>
> Cheers,
> Benjamin
>
> Benjamin Tissoires (5):
> Input - wacom: enhance Wireless Receiver battery reporting
> Input - wacom: use a specific name for the battery device
> Input - wacom: handle Graphire BT tablets in wacom.ko
> Input - wacom: handle Intuos 4 BT in wacom.ko
> HID: remove hid-wacom Bluetooth driver
>
> drivers/hid/Kconfig | 8 -
> drivers/hid/Makefile | 1 -
> drivers/hid/hid-core.c | 2 -
> drivers/hid/hid-wacom.c | 973 ---------------------------------------
> drivers/input/tablet/wacom.h | 6 +
> drivers/input/tablet/wacom_sys.c | 114 ++++-
> drivers/input/tablet/wacom_wac.c | 189 +++++++-
> drivers/input/tablet/wacom_wac.h | 8 +
> 8 files changed, 303 insertions(+), 998 deletions(-)
> delete mode 100644 drivers/hid/hid-wacom.c
>
Benjamin,
I think we might try to fix that [1] as well when making changes to the
sysfs entries. Currently every tablet connected wirelessly will trigger
creating new sysfs entries:

/sys/class/power_supply/wacom_ac
/sys/class/power_supply/wacom_battery

so sysfs is not happy about attempts to create duplicates. We need to
distinguish between devices using consecutive numbers or something else.

[1] https://sourceforge.net/p/linuxwacom/bugs/248/
--
Kind regards,
Przemo Firszt

2014-07-22 13:49:47

by Benjamin Tissoires

[permalink] [raw]
Subject: Re: [PATCH 0/5] Input - wacom: battery enhancements and unifying hid-wacom and wacom

Hi Przemo,

On Jul 19 2014 or thereabouts, Przemo Firszt wrote:
> Dnia 2014-07-10, czw o godzinie 14:44 -0400, Benjamin Tissoires pisze:
> > Hi guys,
> >
> > Continuing on the Wacom cleanup, here are 5 patches.
> >
> > The first two enhance the battery reporting for the Wireless receiver by
> > adding the status of the battery (discharging, full, charging) - inspired by
> > the code found in hid-wacom.c, and also by adding notifications to the power
> > system so that upower knows when the battery changed.
> >
> > The last three are the handling of the two Wacom Bluetooth devices in wacom.ko.
> > Some enhancements here:
> > - Intuos4 now supports other tools than just the plain stylus (mouse, artpen, ...)
> > - one less driver for Wacom (~700 lines of code less in total)
> > - unifying access to LEDs/OLEDs from Bluetooth and USB devices
> >
> > However, I did not backport the speed attribute and the ac power device (which
> > is infered by the battery status). I don't know if there are users of those two,
> > so I let them aside for now. Przemo, any ideas if this is actually used?
> >
> > This whole code is based on top of the previous HID conversion patches.
> > I pushed a branch with all I have queued on the list here:
> > https://github.com/bentiss/linux/commits/hid-wacom-legacy-3.16-rc4
> >
> > Again, given that there has been no answer on how this can be merged upstream
> > (Jiri? Dmitry?), I just piled those on top of the previous.
> > I wouldn't to resplit the input and hid specific changes if this is the choice
> > that is made.
> >
> > Cheers,
> > Benjamin
> >
> > Benjamin Tissoires (5):
> > Input - wacom: enhance Wireless Receiver battery reporting
> > Input - wacom: use a specific name for the battery device
> > Input - wacom: handle Graphire BT tablets in wacom.ko
> > Input - wacom: handle Intuos 4 BT in wacom.ko
> > HID: remove hid-wacom Bluetooth driver
> >
> > drivers/hid/Kconfig | 8 -
> > drivers/hid/Makefile | 1 -
> > drivers/hid/hid-core.c | 2 -
> > drivers/hid/hid-wacom.c | 973 ---------------------------------------
> > drivers/input/tablet/wacom.h | 6 +
> > drivers/input/tablet/wacom_sys.c | 114 ++++-
> > drivers/input/tablet/wacom_wac.c | 189 +++++++-
> > drivers/input/tablet/wacom_wac.h | 8 +
> > 8 files changed, 303 insertions(+), 998 deletions(-)
> > delete mode 100644 drivers/hid/hid-wacom.c
> >
> Benjamin,
> I think we might try to fix that [1] as well when making changes to the
> sysfs entries. Currently every tablet connected wirelessly will trigger
> creating new sysfs entries:
>
> /sys/class/power_supply/wacom_ac
> /sys/class/power_supply/wacom_battery
>
> so sysfs is not happy about attempts to create duplicates. We need to
> distinguish between devices using consecutive numbers or something else.
>
> [1] https://sourceforge.net/p/linuxwacom/bugs/248/

Right. In this first attempt, I tried to change "wacom_" by the actual
name of the tablet. I would thought it was OK because no one will ever
try to plug the same model twice. I was wrong, and a counter seem to be
the solution for that. I'll address that in the v2.

Also note that the bug is both in the current USB driver (wacom.ko) and
the bluetooth one (hid-wacom.ko). Merging these two drivers will prevent
us to have to do this fix twice :)

Just as a head up, I will not be able to work on this patch series
before Thursday (I mean testing with actual hardware). I'd be happy if
we can manage to push that in 3.17, but this will mostly depend if
Dmitry is fine with the USB-to-HID conversion of the wacom.ko driver.

Cheers,
Benjamin