[PATCH 2.6.34-rc5] HID: Zydacron Remote Control HID Driver
From: Don Prince
Date: Wed May 12 2010 - 12:03:38 EST
A specialised HID driver for the Zydacron Remote Control (usb id: 13ec:0006).
The specialised HID driver adds support for the buttons which are not
currently handled by the default HID driver.
Signed-off-by: Don Prince <dhprince-devel@xxxxxxxxxxx>
---
Apply with "patch -p1 < <path to patch>"
---
diff -X /opt/scripts/diff-exclude.txt -Npaur a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
--- a/drivers/hid/hid-core.c 2010-04-22 18:52:46.445384754 +0100
+++ b/drivers/hid/hid-core.c 2010-05-12 11:38:12.770567799 +0100
@@ -1365,6 +1365,7 @@ static const struct hid_device_id hid_bl
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
{ }
diff -X /opt/scripts/diff-exclude.txt -Npaur a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
--- a/drivers/hid/hid-ids.h 2010-04-22 18:52:46.455385039 +0100
+++ b/drivers/hid/hid-ids.h 2010-05-12 11:38:12.771567630 +0100
@@ -474,6 +474,9 @@
#define USB_VENDOR_ID_ZEROPLUS 0x0c12
+#define USB_VENDOR_ID_ZYDACRON 0x13EC
+#define USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL 0x0006
+
#define USB_VENDOR_ID_KYE 0x0458
#define USB_DEVICE_ID_KYE_ERGO_525V 0x0087
#define USB_DEVICE_ID_KYE_GPEN_560 0x5003
diff -X /opt/scripts/diff-exclude.txt -Npaur a/drivers/hid/hid-zydacron.c b/drivers/hid/hid-zydacron.c
--- a/drivers/hid/hid-zydacron.c 1970-01-01 01:00:00.000000000 +0100
+++ b/drivers/hid/hid-zydacron.c 2010-05-12 15:29:34.276028189 +0100
@@ -0,0 +1,291 @@
+/*
+* HID driver for zydacron remote control
+*
+* Copyright (c) 2010 Don Prince
+*/
+
+/*
+* 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/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+/* button layout
+
+ top: button id
+ bottom: button action
+
+ Power/Sleep TV radio teletext
+ default KEY_TV KEY_RADIO KEY_TEXT
+
+ music photo video DVD
+ KEY_AUDIO KEY_AUX KEY_VIDEO KEY_DVD
+
+ UP
+ default
+
+ LEFT RIGHT
+ default default
+
+ DOWN
+ default
+
+ back ok menu
+ default default KEY_MENU
+
+ previous play/pause next
+ default default default
+
+ rewind stop forward
+ default default default
+
+ volume + channel +
+ default default
+
+ home
+ KEY_PVR
+
+ volume - channel -
+ default default
+
+ mute record mouse toggle
+ default default KEY_MODE
+
+ 1 2 3
+ default default default
+
+ 4 5 6
+ default default default
+
+ 7 8 9
+ default default default
+
+ fullscreen 0 info
+ KEY_SCREEN default KEY_INFO
+*/
+
+struct zc_device {
+ struct input_dev *input_ep81;
+ unsigned short last_key[4];
+};
+
+
+/*
+* Zydacron remote control has an invalid HID report descriptor,
+* that needs fixing before we can parse it.
+*/
+static void zc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int rsize)
+{
+ if (rsize >= 253 &&
+ rdesc[0x96] == 0xbc && rdesc[0x97] == 0xff &&
+ rdesc[0xca] == 0xbc && rdesc[0xcb] == 0xff &&
+ rdesc[0xe1] == 0xbc && rdesc[0xe2] == 0xff) {
+ dev_info(&hdev->dev,
+ "fixing up zydacron remote control report "
+ "descriptor\n");
+ rdesc[0x96] = rdesc[0xca] = rdesc[0xe1] = 0x0c;
+ rdesc[0x97] = rdesc[0xcb] = rdesc[0xe2] = 0x00;
+ }
+}
+
+#define zc_map_key_clear(c) \
+ hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
+
+static int zc_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ int i;
+ struct zc_device *zc = (struct zc_device *)hid_get_drvdata(hdev);
+ zc->input_ep81 = hi->input;
+
+ if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
+ return 0;
+
+ dbg_hid("zynacron input mapping event [0x%x]\n",
+ usage->hid & HID_USAGE);
+
+ switch (usage->hid & HID_USAGE) {
+ /* report 2 */
+ case 0x10:
+ zc_map_key_clear(KEY_MODE);
+ break;
+ case 0x30:
+ zc_map_key_clear(KEY_SCREEN);
+ break;
+ case 0x70:
+ zc_map_key_clear(KEY_INFO);
+ break;
+ /* report 3 */
+ case 0x04:
+ zc_map_key_clear(KEY_RADIO);
+ break;
+ /* report 4 */
+ case 0x0d:
+ zc_map_key_clear(KEY_PVR);
+ break;
+ case 0x25:
+ zc_map_key_clear(KEY_TV);
+ break;
+ case 0x47:
+ zc_map_key_clear(KEY_AUDIO);
+ break;
+ case 0x49:
+ zc_map_key_clear(KEY_AUX);
+ break;
+ case 0x4a:
+ zc_map_key_clear(KEY_VIDEO);
+ break;
+ case 0x48:
+ zc_map_key_clear(KEY_DVD);
+ break;
+ case 0x24:
+ zc_map_key_clear(KEY_MENU);
+ break;
+ case 0x32:
+ zc_map_key_clear(KEY_TEXT);
+ break;
+ default:
+ return 0;
+ }
+
+ for (i = 0; i < 4; i++)
+ zc->last_key[i] = 0;
+
+ return 1;
+}
+
+static int zc_raw_event(struct hid_device *hdev, struct hid_report *report,
+ u8 *data, int size)
+{
+ struct zc_device *zc = (struct zc_device *)hid_get_drvdata(hdev);
+ int ret = 0;
+ unsigned key;
+ unsigned short index;
+
+ if (report->id == data[0]) {
+
+ /* break keys */
+ for (index = 0; index < 4; index++) {
+ key = zc->last_key[index];
+ if (key) {
+ input_event(zc->input_ep81, EV_KEY, key, 0);
+ zc->last_key[index] = 0;
+ }
+ }
+
+ key = 0;
+ switch (report->id) {
+ case 0x02:
+ case 0x03:
+ switch (data[1]) {
+ case 0x10:
+ key = KEY_MODE;
+ index = 0;
+ break;
+ case 0x30:
+ key = KEY_SCREEN;
+ index = 1;
+ break;
+ case 0x70:
+ key = KEY_INFO;
+ index = 2;
+ break;
+ case 0x04:
+ key = KEY_RADIO;
+ index = 3;
+ break;
+ }
+
+ if (key) {
+ input_event(zc->input_ep81, EV_KEY, key, 1);
+ zc->last_key[index] = key;
+ }
+
+ ret = 1;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int zc_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int ret;
+ struct zc_device *zc;
+
+ zc = kzalloc(sizeof(*zc), GFP_KERNEL);
+ if (zc == NULL) {
+ dev_err(&hdev->dev, "zydacron: can't alloc descriptor\n");
+ return -ENOMEM;
+ }
+
+ hid_set_drvdata(hdev, zc);
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ dev_err(&hdev->dev, "zydacron: parse failed\n");
+ goto err_free;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ dev_err(&hdev->dev, "zydacron: hw start failed\n");
+ goto err_free;
+ }
+
+ return 0;
+err_free:
+ kfree(zc);
+
+ return ret;
+}
+
+static void zc_remove(struct hid_device *hdev)
+{
+ struct zc_device *zc = (struct zc_device *)hid_get_drvdata(hdev);
+
+ hid_hw_stop(hdev);
+
+ if (NULL != zc)
+ kfree(zc);
+}
+
+static const struct hid_device_id zc_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, zc_devices);
+
+static struct hid_driver zc_driver = {
+ .name = "zydacron",
+ .id_table = zc_devices,
+ .report_fixup = zc_report_fixup,
+ .input_mapping = zc_input_mapping,
+ .raw_event = zc_raw_event,
+ .probe = zc_probe,
+ .remove = zc_remove,
+};
+
+static int __init zc_init(void)
+{
+ return hid_register_driver(&zc_driver);
+}
+
+static void __exit zc_exit(void)
+{
+ hid_unregister_driver(&zc_driver);
+}
+
+module_init(zc_init);
+module_exit(zc_exit);
+MODULE_LICENSE("GPL");
diff -X /opt/scripts/diff-exclude.txt -Npaur a/drivers/hid/Kconfig b/drivers/hid/Kconfig
--- a/drivers/hid/Kconfig 2010-03-09 13:53:05.930183131 +0000
+++ b/drivers/hid/Kconfig 2010-05-12 11:38:12.773567293 +0100
@@ -372,6 +372,13 @@ config ZEROPLUS_FF
Say Y here if you have a Zeroplus based game controller and want
to have force feedback support for it.
+config HID_ZYDACRON
+ tristate "Zydacron remote control support" if EMBEDDED
+ depends on USB_HID
+ default !EMBEDDED
+ ---help---
+ Support for Zydacron remote control.
+
endmenu
endif # HID_SUPPORT
diff -X /opt/scripts/diff-exclude.txt -Npaur a/drivers/hid/Makefile b/drivers/hid/Makefile
--- a/drivers/hid/Makefile 2010-03-09 13:53:06.036326844 +0000
+++ b/drivers/hid/Makefile 2010-05-12 11:38:12.774443286 +0100
@@ -54,6 +54,7 @@ obj-$(CONFIG_HID_THRUSTMASTER) += hid-tm
obj-$(CONFIG_HID_TOPSEED) += hid-topseed.o
obj-$(CONFIG_HID_TWINHAN) += hid-twinhan.o
obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o
+obj-$(CONFIG_HID_ZYDACRON) += hid-zydacron.o
obj-$(CONFIG_HID_WACOM) += hid-wacom.o
obj-$(CONFIG_USB_HID) += usbhid/
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