summaryrefslogtreecommitdiffstats
path: root/drivers/hid/hid-zydacron.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/hid/hid-zydacron.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/hid/hid-zydacron.c')
-rw-r--r--drivers/hid/hid-zydacron.c208
1 files changed, 208 insertions, 0 deletions
diff --git a/drivers/hid/hid-zydacron.c b/drivers/hid/hid-zydacron.c
new file mode 100644
index 0000000000..0d003caee1
--- /dev/null
+++ b/drivers/hid/hid-zydacron.c
@@ -0,0 +1,208 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+* HID driver for zydacron remote control
+*
+* Copyright (c) 2010 Don Prince <dhprince.devel@yahoo.co.uk>
+*/
+
+/*
+*/
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+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 __u8 *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) {
+ hid_info(hdev,
+ "fixing up zydacron remote control report descriptor\n");
+ rdesc[0x96] = rdesc[0xca] = rdesc[0xe1] = 0x0c;
+ rdesc[0x97] = rdesc[0xcb] = rdesc[0xe2] = 0x00;
+ }
+ return rdesc;
+}
+
+#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 = 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 = 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 = devm_kzalloc(&hdev->dev, sizeof(*zc), GFP_KERNEL);
+ if (zc == NULL) {
+ hid_err(hdev, "can't alloc descriptor\n");
+ return -ENOMEM;
+ }
+
+ hid_set_drvdata(hdev, zc);
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "parse failed\n");
+ return ret;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ hid_err(hdev, "hw start failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+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,
+};
+module_hid_driver(zc_driver);
+
+MODULE_LICENSE("GPL");