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Message-Id: <20241017-import_bpf_6-13-v2-3-6a7acb89a97f@kernel.org>
Date: Thu, 17 Oct 2024 18:35:00 +0200
From: Benjamin Tissoires <bentiss@...nel.org>
To: Jiri Kosina <jikos@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
Benjamin Tissoires <bentiss@...nel.org>,
Peter Hutterer <peter.hutterer@...-t.net>
Subject: [PATCH v2 3/3] HID: bpf: drop use of Logical|Physical|UsageRange
Replace with individual Minimum/Maximum calls to match the HID report
descriptor - HID doesn't have a Range field. Abstracting this is good
for hand-written descriptors but almost all tools will output min/max
instead so let's stick with that.
Signed-off-by: Peter Hutterer <peter.hutterer@...-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@...nel.org>
---
new in v2
---
drivers/hid/bpf/progs/Huion__Dial-2.bpf.c | 66 ++++++++++++++++---------
drivers/hid/bpf/progs/Huion__Inspiroy-2-S.bpf.c | 60 ++++++++++++++--------
drivers/hid/bpf/progs/hid_report_helpers.h | 36 ++++++++++----
3 files changed, 111 insertions(+), 51 deletions(-)
diff --git a/drivers/hid/bpf/progs/Huion__Dial-2.bpf.c b/drivers/hid/bpf/progs/Huion__Dial-2.bpf.c
index 2411dec6db08b684c6e24c73ab4d509300424768..9670e5ef8d54f0058260294ef99bc65e7e312472 100644
--- a/drivers/hid/bpf/progs/Huion__Dial-2.bpf.c
+++ b/drivers/hid/bpf/progs/Huion__Dial-2.bpf.c
@@ -214,7 +214,8 @@ static const __u8 fixed_rdesc_pad[] = {
CollectionApplication(
// -- Byte 0 in report
ReportId(PAD_REPORT_ID)
- LogicalRange_i8(0, 1)
+ LogicalMaximum_i8(0)
+ LogicalMaximum_i8(1)
UsagePage_Digitizers
Usage_Dig_TabletFunctionKeys
CollectionPhysical(
@@ -234,14 +235,17 @@ static const __u8 fixed_rdesc_pad[] = {
Input(Var|Abs)
// Byte 4 in report is the dial
Usage_GD_Wheel
- LogicalRange_i8(-1, 1)
+ LogicalMinimum_i8(-1)
+ LogicalMaximum_i8(1)
ReportCount(1)
ReportSize(8)
Input(Var|Rel)
// Byte 5 is the button state
UsagePage_Button
- UsageRange_i8(0x01, 0x8)
- LogicalRange_i8(0x0, 0x1)
+ UsageMinimum_i8(0x01)
+ UsageMaximum_i8(0x08)
+ LogicalMinimum_i8(0x0)
+ LogicalMaximum_i8(0x1)
ReportCount(7)
ReportSize(1)
Input(Var|Abs)
@@ -265,7 +269,8 @@ static const __u8 fixed_rdesc_pen[] = {
Usage_Dig_TipSwitch
Usage_Dig_BarrelSwitch
Usage_Dig_SecondaryBarrelSwitch // maps eraser to BTN_STYLUS2
- LogicalRange_i8(0, 1)
+ LogicalMinimum_i8(0)
+ LogicalMaximum_i8(1)
ReportSize(1)
ReportCount(3)
Input(Var|Abs)
@@ -280,22 +285,28 @@ static const __u8 fixed_rdesc_pen[] = {
UsagePage_GenericDesktop
Unit(cm)
UnitExponent(-1)
- PhysicalRange_i16(0, 266)
- LogicalRange_i16(0, 32767)
+ PhysicalMinimum_i16(0)
+ PhysicalMaximum_i16(266)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(32767)
Usage_GD_X
Input(Var|Abs) // Bytes 2+3
- PhysicalRange_i16(0, 166)
- LogicalRange_i16(0, 32767)
+ PhysicalMinimum_i16(0)
+ PhysicalMaximum_i16(166)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(32767)
Usage_GD_Y
Input(Var|Abs) // Bytes 4+5
)
UsagePage_Digitizers
Usage_Dig_TipPressure
- LogicalRange_i16(0, 8191)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(8191)
Input(Var|Abs) // Byte 6+7
ReportSize(8)
ReportCount(2)
- LogicalRange_i8(-60, 60)
+ LogicalMinimum_i8(-60)
+ LogicalMaximum_i8(60)
Usage_Dig_XTilt
Usage_Dig_YTilt
Input(Var|Abs) // Byte 8+9
@@ -313,7 +324,8 @@ static const __u8 fixed_rdesc_vendor[] = {
Usage_Dig_Pen
CollectionPhysical(
// Byte 1 are the buttons
- LogicalRange_i8(0, 1)
+ LogicalMinimum_i8(0)
+ LogicalMaximum_i8(1)
ReportSize(1)
Usage_Dig_TipSwitch
Usage_Dig_BarrelSwitch
@@ -333,25 +345,31 @@ static const __u8 fixed_rdesc_vendor[] = {
UnitExponent(-1)
// Note: reported logical range differs
// from the pen report ID for x and y
- LogicalRange_i16(0, 53340)
- PhysicalRange_i16(0, 266)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(53340)
+ PhysicalMinimum_i16(0)
+ PhysicalMaximum_i16(266)
// Bytes 2/3 in report
Usage_GD_X
Input(Var|Abs)
- LogicalRange_i16(0, 33340)
- PhysicalRange_i16(0, 166)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(33340)
+ PhysicalMinimum_i16(0)
+ PhysicalMaximum_i16(166)
// Bytes 4/5 in report
Usage_GD_Y
Input(Var|Abs)
)
// Bytes 6/7 in report
- LogicalRange_i16(0, 8191)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(8191)
Usage_Dig_TipPressure
Input(Var|Abs)
// Bytes 8/9 in report
ReportCount(1) // Padding
Input(Const)
- LogicalRange_i8(-60, 60)
+ LogicalMinimum_i8(-60)
+ LogicalMaximum_i8(60)
// Byte 10 in report
Usage_Dig_XTilt
// Byte 11 in report
@@ -366,7 +384,8 @@ static const __u8 fixed_rdesc_vendor[] = {
CollectionApplication(
// Byte 0
ReportId(PAD_REPORT_ID)
- LogicalRange_i8(0, 1)
+ LogicalMinimum_i8(0)
+ LogicalMaximum_i8(1)
UsagePage_Digitizers
Usage_Dig_TabletFunctionKeys
CollectionPhysical(
@@ -386,15 +405,18 @@ static const __u8 fixed_rdesc_vendor[] = {
Input(Var|Abs)
// Byte 4 is the button state
UsagePage_Button
- UsageRange_i8(0x01, 0x8)
- LogicalRange_i8(0x0, 0x1)
+ UsageMinimum_i8(0x1)
+ UsageMaximum_i8(0x8)
+ LogicalMinimum_i8(0x0)
+ LogicalMaximum_i8(0x1)
ReportCount(8)
ReportSize(1)
Input(Var|Abs)
// Byte 5 is the top dial
UsagePage_GenericDesktop
Usage_GD_Wheel
- LogicalRange_i8(-1, 1)
+ LogicalMinimum_i8(-1)
+ LogicalMaximum_i8(1)
ReportCount(1)
ReportSize(8)
Input(Var|Rel)
diff --git a/drivers/hid/bpf/progs/Huion__Inspiroy-2-S.bpf.c b/drivers/hid/bpf/progs/Huion__Inspiroy-2-S.bpf.c
index b09b80132368b6c504a61e1965263bdaaac67fb0..13f64fb49800b16f6d4d48c378f065fcdf51202a 100644
--- a/drivers/hid/bpf/progs/Huion__Inspiroy-2-S.bpf.c
+++ b/drivers/hid/bpf/progs/Huion__Inspiroy-2-S.bpf.c
@@ -170,7 +170,8 @@ static const __u8 fixed_rdesc_pad[] = {
CollectionApplication(
// -- Byte 0 in report
ReportId(PAD_REPORT_ID)
- LogicalRange_i8(0, 1)
+ LogicalMinimum_i8(0)
+ LogicalMaximum_i8(1)
UsagePage_Digitizers
Usage_Dig_TabletFunctionKeys
CollectionPhysical(
@@ -190,14 +191,17 @@ static const __u8 fixed_rdesc_pad[] = {
Input(Var|Abs)
// Byte 4 in report is the wheel
Usage_GD_Wheel
- LogicalRange_i8(-1, 1)
+ LogicalMinimum_i8(-1)
+ LogicalMaximum_i8(1)
ReportCount(1)
ReportSize(8)
Input(Var|Rel)
// Byte 5 is the button state
UsagePage_Button
- UsageRange_i8(0x01, 0x6)
- LogicalRange_i8(0x01, 0x6)
+ UsageMinimum_i8(0x1)
+ UsageMaximum_i8(0x6)
+ LogicalMinimum_i8(0x1)
+ LogicalMaximum_i8(0x6)
ReportCount(1)
ReportSize(8)
Input(Arr|Abs)
@@ -219,7 +223,8 @@ static const __u8 fixed_rdesc_pen[] = {
Usage_Dig_TipSwitch
Usage_Dig_BarrelSwitch
Usage_Dig_SecondaryBarrelSwitch // maps eraser to BTN_STYLUS2
- LogicalRange_i8(0, 1)
+ LogicalMinimum_i8(0)
+ LogicalMaximum_i8(1)
ReportSize(1)
ReportCount(3)
Input(Var|Abs)
@@ -234,18 +239,23 @@ static const __u8 fixed_rdesc_pen[] = {
UsagePage_GenericDesktop
Unit(cm)
UnitExponent(-1)
- PhysicalRange_i16(0, 160)
- LogicalRange_i16(0, 32767)
+ PhysicalMinimum_i16(0)
+ PhysicalMaximum_i16(160)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(32767)
Usage_GD_X
Input(Var|Abs) // Bytes 2+3
- PhysicalRange_i16(0, 100)
- LogicalRange_i16(0, 32767)
+ PhysicalMinimum_i16(0)
+ PhysicalMaximum_i16(100)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(32767)
Usage_GD_Y
Input(Var|Abs) // Bytes 4+5
)
UsagePage_Digitizers
Usage_Dig_TipPressure
- LogicalRange_i16(0, 8191)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(8191)
Input(Var|Abs) // Byte 6+7
// Two bytes padding so we don't need to change the report at all
ReportSize(8)
@@ -265,7 +275,8 @@ static const __u8 fixed_rdesc_vendor[] = {
Usage_Dig_Pen
CollectionPhysical(
// Byte 1 are the buttons
- LogicalRange_i8(0, 1)
+ LogicalMinimum_i8(0)
+ LogicalMaximum_i8(1)
ReportSize(1)
Usage_Dig_TipSwitch
Usage_Dig_BarrelSwitch
@@ -285,19 +296,24 @@ static const __u8 fixed_rdesc_vendor[] = {
UnitExponent(-1)
// Note: reported logical range differs
// from the pen report ID for x and y
- LogicalRange_i16(0, 32000)
- PhysicalRange_i16(0, 160)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(32000)
+ PhysicalMinimum_i16(0)
+ PhysicalMaximum_i16(160)
// Bytes 2/3 in report
Usage_GD_X
Input(Var|Abs)
- LogicalRange_i16(0, 20000)
- PhysicalRange_i16(0, 100)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(20000)
+ PhysicalMinimum_i16(0)
+ PhysicalMaximum_i16(100)
// Bytes 4/5 in report
Usage_GD_Y
Input(Var|Abs)
)
// Bytes 6/7 in report
- LogicalRange_i16(0, 8192)
+ LogicalMinimum_i16(0)
+ LogicalMaximum_i16(8192)
Usage_Dig_TipPressure
Input(Var|Abs)
)
@@ -307,7 +323,8 @@ static const __u8 fixed_rdesc_vendor[] = {
CollectionApplication(
// Byte 0
ReportId(PAD_REPORT_ID)
- LogicalRange_i8(0, 1)
+ LogicalMinimum_i8(0)
+ LogicalMaximum_i8(1)
UsagePage_Digitizers
Usage_Dig_TabletFunctionKeys
CollectionPhysical(
@@ -327,8 +344,10 @@ static const __u8 fixed_rdesc_vendor[] = {
Input(Var|Abs)
// Byte 4 is the button state
UsagePage_Button
- UsageRange_i8(0x01, 0x6)
- LogicalRange_i8(0x0, 0x1)
+ UsageMinimum_i8(0x1)
+ UsageMaximum_i8(0x6)
+ LogicalMinimum_i8(0x0)
+ LogicalMaximum_i8(0x1)
ReportCount(6)
ReportSize(1)
Input(Var|Abs)
@@ -337,7 +356,8 @@ static const __u8 fixed_rdesc_vendor[] = {
// Byte 5 is the wheel
UsagePage_GenericDesktop
Usage_GD_Wheel
- LogicalRange_i8(-1, 1)
+ LogicalMinimum_i8(-1)
+ LogicalMaximum_i8(1)
ReportCount(1)
ReportSize(8)
Input(Var|Rel)
diff --git a/drivers/hid/bpf/progs/hid_report_helpers.h b/drivers/hid/bpf/progs/hid_report_helpers.h
index 0aa1df438eebac72a64cc3fa24aa2fd28b952d1d..9b2a48e4a311b39ca20e7d9819beef8fb70315a6 100644
--- a/drivers/hid/bpf/progs/hid_report_helpers.h
+++ b/drivers/hid/bpf/progs/hid_report_helpers.h
@@ -52,7 +52,8 @@
* Usage_GD_Keyboard
* CollectionApplication( ← Open the collection
* ReportId(3)
- * LogicalRange_i8(0, 1)
+ * LogicalMinimum_i8(0)
+ * LogicalMaximum_i8(1)
* // other fields
* ) ← End EndCollection
*
@@ -74,26 +75,43 @@
#define Arr 0x0
#define Abs 0x0
#define Rel 0x4
+#define Null 0x40
+#define Buff 0x0100
/* Use like this: Input(Var|Abs) */
#define Input(i_) 0x081, i8(i_),
#define Output(i_) 0x091, i8(i_),
#define Feature(i_) 0x0b1, i8(i_),
+#define Input_i16(i_) 0x082, LE16(i_),
+#define Output_i16(i_) 0x092, LE16(i_),
+#define Feature_i16(i_) 0x0b2, LE16(i_),
+
#define ReportId(id_) 0x85, i8(id_),
#define ReportSize(sz_) 0x75, i8(sz_),
#define ReportCount(cnt_) 0x95, i8(cnt_),
-#define LogicalRange_i8(min_, max_) 0x15, i8(min_), 0x25, i8(max_),
-#define LogicalRange_i16(min_, max_) 0x16, LE16(min_), 0x26, LE16(max_),
-#define LogicalRange_i32(min_, max_) 0x17, LE32(min_), 0x27, LE32(max_),
+#define LogicalMinimum_i8(min_) 0x15, i8(min_),
+#define LogicalMinimum_i16(min_) 0x16, LE16(min_),
+#define LogicalMinimum_i32(min_) 0x17, LE32(min_),
+
+#define LogicalMaximum_i8(max_) 0x25, i8(max_),
+#define LogicalMaximum_i16(max_) 0x26, LE16(max_),
+#define LogicalMaximum_i32(max_) 0x27, LE32(max_),
+
+#define PhysicalMinimum_i8(min_) 0x35, i8(min_),
+#define PhysicalMinimum_i16(min_) 0x36, LE16(min_),
+#define PhysicalMinimum_i32(min_) 0x37, LE32(min_),
+
+#define PhysicalMaximum_i8(max_) 0x45, i8(max_),
+#define PhysicalMaximum_i16(max_) 0x46, LE16(max_),
+#define PhysicalMaximum_i32(max_) 0x47, LE32(max_),
-#define PhysicalRange_i8(min_, max_) 0x35, i8(min_), 0x45, i8(max_),
-#define PhysicalRange_i16(min_, max_) 0x36, LE16(min_), 0x46, LE16(max_),
-#define PhysicalRange_i32(min_, max_) 0x37, LE32(min_), 0x47, LE32(max_),
+#define UsageMinimum_i8(min_) 0x19, i8(min_),
+#define UsageMinimum_i16(min_) 0x1a, LE16(min_),
-#define UsageRange_i8(min_, max_) 0x19, i8(min_), 0x29, i8(max_),
-#define UsageRange_i16(min_, max_) 0x1a, LE16(min_), 0x2a, LE16(max_),
+#define UsageMaximum_i8(max_) 0x29, i8(max_),
+#define UsageMaximum_i16(max_) 0x2a, LE16(max_),
#define UsagePage_i8(p_) 0x05, i8(p_),
#define UsagePage_i16(p_) 0x06, LE16(p_),
--
2.47.0
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