[PATCH 04/18] HID: haptic: introduce hid_haptic_device

[Angela Czubak <acz@semihalf.com>]

Define a new structure that contains simple haptic device configuration
as well as current state.

Signed-off-by: Angela Czubak <acz@semihalf.com>
---
 drivers/hid/Kconfig      |  4 +++
 drivers/hid/Makefile     |  1 +
 drivers/hid/hid-haptic.c | 10 ++++++
 drivers/hid/hid-haptic.h | 68 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 83 insertions(+)
 create mode 100644 drivers/hid/hid-haptic.c
 create mode 100644 drivers/hid/hid-haptic.h

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index a7c78ac96270..8d1eb4491a7f 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -89,6 +89,10 @@ config HID_GENERIC
 
 	If unsure, say Y.
 
+config HID_HAPTIC
+	bool
+	default n
+
 menu "Special HID drivers"
 	depends on HID
 
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 55a6fa3eca5a..65d54ccd4574 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -4,6 +4,7 @@
 #
 hid-y			:= hid-core.o hid-input.o hid-quirks.o
 hid-$(CONFIG_DEBUG_FS)		+= hid-debug.o
+hid-$(CONFIG_HID_HAPTIC)	+= hid-haptic.o
 
 obj-$(CONFIG_HID)		+= hid.o
 obj-$(CONFIG_UHID)		+= uhid.o
diff --git a/drivers/hid/hid-haptic.c b/drivers/hid/hid-haptic.c
new file mode 100644
index 000000000000..0910d8af9f38
--- /dev/null
+++ b/drivers/hid/hid-haptic.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  HID Haptic support for Linux
+ *
+ *  Copyright (c) 2021 Angela Czubak
+ */
+
+/*
+ */
+#include "hid-haptic.h"
diff --git a/drivers/hid/hid-haptic.h b/drivers/hid/hid-haptic.h
new file mode 100644
index 000000000000..41f19cd22f75
--- /dev/null
+++ b/drivers/hid/hid-haptic.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *  HID Haptic support for Linux
+ *
+ *  Copyright (c) 2021 Angela Czubak
+ */
+
+/*
+ */
+
+
+#include <linux/hid.h>
+
+#define HID_HAPTIC_ORDINAL_WAVEFORMNONE 1
+#define HID_HAPTIC_ORDINAL_WAVEFORMSTOP 2
+
+#define HID_HAPTIC_PRESS_THRESH 200
+#define HID_HAPTIC_RELEASE_THRESH 180
+
+#define HID_HAPTIC_MODE_DEVICE 0
+#define HID_HAPTIC_MODE_KERNEL 1
+
+struct hid_haptic_effect {
+	__u8 *report_buf;
+	struct input_dev *input_dev;
+	struct work_struct work;
+	struct list_head control;
+	struct mutex control_mutex;
+};
+
+struct hid_haptic_effect_node {
+	struct list_head node;
+	struct file *file;
+};
+
+struct hid_haptic_device {
+	struct input_dev *input_dev;
+	struct hid_device *hdev;
+	struct hid_report *auto_trigger_report;
+	struct mutex auto_trigger_mutex;
+	struct workqueue_struct *wq;
+	struct hid_report *manual_trigger_report;
+	struct mutex manual_trigger_mutex;
+	size_t manual_trigger_report_len;
+	int pressed_state;
+	__s32 pressure_sum;
+	__s32 force_logical_minimum;
+	__s32 force_physical_minimum;
+	__s32 force_resolution;
+	__u32 press_threshold;
+	__u32 release_threshold;
+	__u32 mode;
+	__u32 default_auto_trigger;
+	__u32 vendor_page;
+	__u32 vendor_id;
+	__u32 max_waveform_id;
+	__u32 max_duration_id;
+	__u16 *hid_usage_map;
+	__u32 *duration_map;
+	__u16 press_ordinal_orig;
+	__u16 press_ordinal_cur;
+	__u16 release_ordinal_orig;
+	__u16 release_ordinal_cur;
+#define HID_HAPTIC_RELEASE_EFFECT_ID 0
+#define HID_HAPTIC_PRESS_EFFECT_ID 1
+	struct hid_haptic_effect *effect;
+	struct hid_haptic_effect stop_effect;
+};
-- 
2.34.1.307.g9b7440fafd-goog