From: Benjamin Tissoires <bentiss@kernel.org>
To: Jiri Kosina <jikos@kernel.org>,
Peter Hutterer <peter.hutterer@who-t.net>
Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org,
Benjamin Tissoires <bentiss@kernel.org>,
Aki Van Ness <aki@lethalbit.net>
Subject: [PATCH 3/7] HID: bpf: Added updated Kamvas Pro 19 descriptor
Date: Fri, 07 Feb 2025 14:55:59 +0100 [thread overview]
Message-ID: <20250207-bpf-import-2025-02-07-v1-3-6048fdd5a206@kernel.org> (raw)
In-Reply-To: <20250207-bpf-import-2025-02-07-v1-0-6048fdd5a206@kernel.org>
This adds an updated HID descriptor for the Huion Kamvas Pro 19 that is
present on newer firmware revisions, while also trying to keep
compat with the older versions.
Link: https://gitlab.freedesktop.org/libevdev/udev-hid-bpf/-/merge_requests/164
Signed-off-by: Aki Van Ness <aki@lethalbit.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
drivers/hid/bpf/progs/Huion__Kamvas-Pro-19.bpf.c | 75 ++++++++++++++++++++++--
1 file changed, 71 insertions(+), 4 deletions(-)
diff --git a/drivers/hid/bpf/progs/Huion__Kamvas-Pro-19.bpf.c b/drivers/hid/bpf/progs/Huion__Kamvas-Pro-19.bpf.c
index a4a4f324aedd5658bb9b5114b2513d37ed719c0f..489cb4fcc2cd2702e4d996ad9435ba0ca454b6d9 100644
--- a/drivers/hid/bpf/progs/Huion__Kamvas-Pro-19.bpf.c
+++ b/drivers/hid/bpf/progs/Huion__Kamvas-Pro-19.bpf.c
@@ -41,7 +41,7 @@ static const __u8 fixed_rdesc[] = {
0x15, 0x00, // Logical Minimum (0) 22
0x25, 0x01, // Logical Maximum (1) 24
0x75, 0x01, // Report Size (1) 26
- 0x95, 0x05, // Report Count (5) 28 /* changed (was 5) */
+ 0x95, 0x05, // Report Count (5) 28 /* changed (was 6) */
0x81, 0x02, // Input (Data,Var,Abs) 30
0x05, 0x09, // Usage Page (Button) /* inserted */
0x09, 0x4a, // Usage (0x4a) /* inserted to be translated as input usage 0x149: BTN_STYLUS3 */
@@ -189,8 +189,68 @@ static const __u8 fixed_rdesc[] = {
0x96, 0x00, 0x01, // Report Count (256) 322
0xb1, 0x02, // Feature (Data,Var,Abs) 325
0xc0, // End Collection 327
+ /* New in Firmware Version: HUION_M220_240524 */
+ 0x05, 0x01, // Usage Page (Generic Desktop) 328
+ 0x09, 0x01, // Usage (Pointer) 330
+ 0xa1, 0x01, // Collection (Application) 332
+ 0x09, 0x01, // Usage (Pointer) 334
+ 0xa1, 0x00, // Collection (Physical) 336
+ 0x05, 0x09, // Usage Page (Button) 338
+ 0x19, 0x01, // UsageMinimum (1) 340
+ 0x29, 0x03, // UsageMaximum (3) 342
+ 0x15, 0x00, // Logical Minimum (0) 344
+ 0x25, 0x01, // Logical Maximum (1) 346
+ 0x85, 0x02, // Report ID (2) 348
+ 0x95, 0x03, // Report Count (3) 350
+ 0x75, 0x01, // Report Size (1) 352
+ 0x81, 0x02, // Input (Data,Var,Abs) 354
+ 0x95, 0x01, // Report Count (1) 356
+ 0x75, 0x05, // Report Size (5) 358
+ 0x81, 0x01, // Input (Cnst,Arr,Abs) 360
+ 0x05, 0x01, // Usage Page (Generic Desktop) 362
+ 0x09, 0x30, // Usage (X) 364
+ 0x09, 0x31, // Usage (Y) 366
+ 0x15, 0x81, // Logical Minimum (-127) 368
+ 0x25, 0x7f, // Logical Maximum (127) 370
+ 0x75, 0x08, // Report Size (8) 372
+ 0x95, 0x02, // Report Count (2) 374
+ 0x81, 0x06, // Input (Data,Var,Rel) 376
+ 0x95, 0x04, // Report Count (4) 378
+ 0x75, 0x08, // Report Size (8) 380
+ 0x81, 0x01, // Input (Cnst,Arr,Abs) 382
+ 0xc0, // End Collection 384
+ 0xc0, // End Collection 385
+ 0x05, 0x0d, // Usage Page (Digitizers) 386
+ 0x09, 0x05, // Usage (Touch Pad) 388
+ 0xa1, 0x01, // Collection (Application) 390
+ 0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page FF00) 392
+ 0x09, 0x0c, // Usage (Vendor Usage 0x0c) 395
+ 0x15, 0x00, // Logical Minimum (0) 397
+ 0x26, 0xff, 0x00, // Logical Maximum (255) 399
+ 0x75, 0x08, // Report Size (8) 402
+ 0x95, 0x10, // Report Count (16) 404
+ 0x85, 0x3f, // Report ID (63) 406
+ 0x81, 0x22, // Input (Data,Var,Abs,NoPref) 408
+ 0xc0, // End Collection 410
+ 0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page FF00) 411
+ 0x09, 0x0c, // Usage (Vendor Usage 0x0c) 414
+ 0xa1, 0x01, // Collection (Application) 416
+ 0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page FF00) 418
+ 0x09, 0x0c, // Usage (Vendor Usage 0x0c) 421
+ 0x15, 0x00, // Logical Minimum (0) 423
+ 0x26, 0xff, 0x00, // Logical Maximum (255) 425
+ 0x85, 0x44, // Report ID (68) 428
+ 0x75, 0x08, // Report Size (8) 430
+ 0x96, 0x6b, 0x05, // Report Count (1387) 432
+ 0x81, 0x00, // Input (Data,Arr,Abs) 435
+ 0xc0, // End Collection 437
};
+#define PRE_240524_RDESC_SIZE 328
+#define PRE_240524_RDESC_FIXED_SIZE 338 /* The original bits of the descriptor */
+#define FW_240524_RDESC_SIZE 438
+#define FW_240524_RDESC_FIXED_SIZE sizeof(fixed_rdesc)
+
SEC(HID_BPF_RDESC_FIXUP)
int BPF_PROG(hid_fix_rdesc_huion_kamvas_pro_19, struct hid_bpf_ctx *hctx)
{
@@ -199,9 +259,14 @@ int BPF_PROG(hid_fix_rdesc_huion_kamvas_pro_19, struct hid_bpf_ctx *hctx)
if (!data)
return 0; /* EPERM check */
- __builtin_memcpy(data, fixed_rdesc, sizeof(fixed_rdesc));
+ if (hctx->size == FW_240524_RDESC_SIZE) {
+ __builtin_memcpy(data, fixed_rdesc, FW_240524_RDESC_FIXED_SIZE);
+ return sizeof(fixed_rdesc);
+ }
+
+ __builtin_memcpy(data, fixed_rdesc, PRE_240524_RDESC_FIXED_SIZE);
- return sizeof(fixed_rdesc);
+ return PRE_240524_RDESC_FIXED_SIZE;
}
/*
@@ -263,7 +328,9 @@ HID_BPF_OPS(huion_Kamvas_pro_19) = {
SEC("syscall")
int probe(struct hid_bpf_probe_args *ctx)
{
- ctx->retval = ctx->rdesc_size != 328;
+
+ ctx->retval = !((ctx->rdesc_size == PRE_240524_RDESC_SIZE) ||
+ (ctx->rdesc_size == FW_240524_RDESC_SIZE));
if (ctx->retval)
ctx->retval = -EINVAL;
--
2.47.0
next prev parent reply other threads:[~2025-02-07 13:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-07 13:55 [PATCH 0/7] HID: bpf: sync with udev-hid-bpf Benjamin Tissoires
2025-02-07 13:55 ` [PATCH 1/7] HID: bpf: Add support for the default firmware mode of the Huion K20 Benjamin Tissoires
2025-02-07 13:55 ` [PATCH 2/7] HID: bpf: Suppress bogus F13 trigger on Sirius keyboard full fan shortcut Benjamin Tissoires
2025-02-07 13:55 ` Benjamin Tissoires [this message]
2025-02-07 13:56 ` [PATCH 4/7] HID: bpf: add support for the XP-Pen Artist Pro 19 (gen2) Benjamin Tissoires
2025-02-07 13:56 ` [PATCH 5/7] HID: bpf: import new kfunc from v6.10 & v6.11 Benjamin Tissoires
2025-02-07 13:56 ` [PATCH 6/7] HID: bpf: new hid_bpf_async.h common header Benjamin Tissoires
2025-02-07 13:56 ` [PATCH 7/7] HID: bpf: add a v6.11+ compatible BPF fixup for the XPPen ACK05 remote Benjamin Tissoires
2025-02-07 14:49 ` [PATCH 0/7] HID: bpf: sync with udev-hid-bpf Jiri Kosina
2025-02-24 8:35 ` Benjamin Tissoires
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