[PATCH] HID: add support for PenMount HID TouchScreen Driver
From: Christian Gmeiner <christian.gmeiner@gmail.com>
Date: 2014-08-25 14:47:31
This driver is a cleaned up version of
http://git.android-x86.org/?p=kernel/cdv.git;a=blob_plain;f=drivers/hid/hid-penmount.c;hb=HEAD
As I only have a PenMount 6000 to test I removed the multi touch support from the dirver.
Bus 002 Device 006: ID 14e1:6000 Dialogue Technology Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x14e1 Dialogue Technology Corp.
idProduct 0x6000
bcdDevice a4.b4
iManufacturer 1 DIALOGUE INC
iProduct 2 PenMount USB
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 4 full speed
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 3 EndPoint1 Interrupt Pipe
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.01
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 76
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0005 1x 5 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0005 1x 5 bytes
bInterval 1
Device Status: 0x0000
(Bus Powered)
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
---
drivers/hid/Kconfig | 6 ++
drivers/hid/Makefile | 1 +
drivers/hid/hid-core.c | 1 +
drivers/hid/hid-ids.h | 1 +
drivers/hid/hid-penmount.c | 200 +++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 209 insertions(+)
create mode 100644 drivers/hid/hid-penmount.c
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index c18d5d7..0351b66 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig@@ -530,6 +530,12 @@ config PANTHERLORD_FF Say Y here if you have a PantherLord/GreenAsia based game controller or adapter and want to enable force feedback support for it. +config HID_PENMOUNT + tristate "Penmount touch device" + depends on USB_HID + ---help--- + Say Y here if you have a Penmount based touch controller. + config HID_PETALYNX tristate "Petalynx Maxter remote control" depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 4dbac7f..e2850d8 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile@@ -71,6 +71,7 @@ obj-$(CONFIG_HID_NTRIG) += hid-ntrig.o obj-$(CONFIG_HID_ORTEK) += hid-ortek.o obj-$(CONFIG_HID_PRODIKEYS) += hid-prodikeys.o obj-$(CONFIG_HID_PANTHERLORD) += hid-pl.o +obj-$(CONFIG_HID_PENMOUNT) += hid-penmount.o obj-$(CONFIG_HID_PETALYNX) += hid-petalynx.o obj-$(CONFIG_HID_PICOLCD) += hid-picolcd.o hid-picolcd-y += hid-picolcd_core.o
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 12b6e67..6827196 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c@@ -1880,6 +1880,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) }, { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) }, { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) }, + { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) }, { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) }, #if IS_ENABLED(CONFIG_HID_ROCCAT)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 25cd674..3943ffe 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h@@ -722,6 +722,7 @@ #define USB_DEVICE_ID_PENMOUNT_PCI 0x3500 #define USB_DEVICE_ID_PENMOUNT_1610 0x1610 #define USB_DEVICE_ID_PENMOUNT_1640 0x1640 +#define USB_DEVICE_ID_PENMOUNT_6000 0x6000 #define USB_VENDOR_ID_PETALYNX 0x18b1 #define USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE 0x0037
diff --git a/drivers/hid/hid-penmount.c b/drivers/hid/hid-penmount.c
new file mode 100644
index 0000000..3a630d1
--- /dev/null
+++ b/drivers/hid/hid-penmount.c@@ -0,0 +1,200 @@ +/* + * HID driver for PenMount touchscreens + * + * Copyright (c) 2011 PenMount Touch Solutions <penmount@seed.net.tw> + * + */ + +/* + * 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. + */ + +#include <linux/module.h> +#include <linux/hid.h> +#include <linux/version.h> +#include <linux/input/mt.h> +#include "hid-ids.h" + +struct penmount_priv { + u8 touch; + bool touching; + u16 x; + u16 y; +}; + +static int penmount_input_mapping(struct hid_device *hdev, + struct hid_input *hi, struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, int *max) +{ + struct input_dev *dev = hi->input; + int mapped = 0; + + switch (usage->hid & HID_USAGE_PAGE) { + case HID_UP_GENDESK: + switch (usage->hid) { + case HID_GD_X: + hid_map_usage(hi, usage, bit, max, EV_ABS, ABS_X); + mapped = 1; + break; + case HID_GD_Y: + hid_map_usage(hi, usage, bit, max, EV_ABS, ABS_Y); + mapped = 1; + break; + } + break; + case HID_UP_BUTTON: + hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); + mapped = 1; + break; + case HID_UP_DIGITIZER: + switch (usage->hid) { + case HID_DG_TIPSWITCH: + hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); + mapped = 1; + break; + case HID_DG_CONTACTID: + input_mt_init_slots(dev, 1, 0); + mapped = -1; + break; + case HID_DG_INRANGE: + case HID_DG_CONFIDENCE: + mapped = -1; + break; + } + break; + } + + return mapped; +} + +static void penmount_process(struct input_dev *dev, struct penmount_priv *priv) +{ + if (!priv->touching) { + if (priv->touch) { + input_report_key(dev, BTN_TOUCH, 1); + priv->touching = true; + } + } else { + if (!priv->touch) { + input_report_key(dev, BTN_TOUCH, 0); + priv->touching = false; + } + } + + input_report_abs(dev, ABS_X, priv->x); + input_report_abs(dev, ABS_Y, priv->y); + input_sync(dev); + + priv->touch = 0; +} + +static int penmount_event(struct hid_device *hdev, struct hid_field *field, + struct hid_usage *usage, __s32 value) +{ + if (hdev->claimed & HID_CLAIMED_INPUT) { + struct penmount_priv *priv = hid_get_drvdata(hdev); + struct input_dev *dev = field->hidinput->input; + + switch (usage->hid) { + case HID_DG_TIPSWITCH: + priv->touch = value; + break; + case HID_GD_X: + priv->x = value; + break; + case HID_GD_Y: + priv->y = value; + break; + default: + /* fallback to the generic hidinput handling */ + return 0; + } + + penmount_process(dev, priv); + } + + if ((hdev->claimed & HID_CLAIMED_HIDDEV) && (hdev->hiddev_hid_event)) + hdev->hiddev_hid_event(hdev, field, usage, value); + + return 1; +} + +static int penmount_probe(struct hid_device *hdev, + const struct hid_device_id *id) +{ + struct penmount_priv *priv; + int ret = 0; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + hid_set_drvdata(hdev, priv); + + 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; + } + + return 0; + +err_free: + kfree(priv); + return ret; +} + +static void penmount_remove(struct hid_device *hdev) +{ + struct penmount_priv *priv = hid_get_drvdata(hdev); + + hid_hw_stop(hdev); + kfree(priv); +} + +static const struct hid_device_id penmount_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) }, + { } +}; +MODULE_DEVICE_TABLE(hid, penmount_devices); + +static const struct hid_usage_id penmount_usages[] = { + { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, + { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1 } +}; + +static struct hid_driver penmount_driver = { + .name = "hid-penmount", + .id_table = penmount_devices, + .probe = penmount_probe, + .remove = penmount_remove, + .input_mapping = penmount_input_mapping, + .usage_table = penmount_usages, + .event = penmount_event, +}; + +static int __init penmount_init(void) +{ + return hid_register_driver(&penmount_driver); +} + +static void __exit penmount_exit(void) +{ + hid_unregister_driver(&penmount_driver); +} + +module_init(penmount_init); +module_exit(penmount_exit); + +MODULE_AUTHOR("PenMount Touch Solutions <penmount@seed.net.tw>"); +MODULE_DESCRIPTION("PenMount HID TouchScreen Driver"); +MODULE_LICENSE("GPL");
--
1.9.3