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@@ -0,0 +1,561 @@
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+package linux
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+
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+import "unsafe"
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+
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+
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+// This file is a Go version of <linux/input.h>
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+
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+type input_event struct {
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+ time timeval
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+ type_ uint16
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+ code uint16
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+ value int32
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+}
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+
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+/*
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+ * Protocol version.
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+ */
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+
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+const EV_VERSION=0x010001
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+
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+/*
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+ * IOCTLs (0x00 - 0x7f)
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+ */
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+
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+type input_id struct {
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+ bustype uint16
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+ vendor uint16
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+ product uint16
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+ version uint16
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+}
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+
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+/**
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+ * struct input_absinfo - used by EVIOCGABS/EVIOCSABS ioctls
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+ * @value: latest reported value for the axis.
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+ * @minimum: specifies minimum value for the axis.
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+ * @maximum: specifies maximum value for the axis.
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+ * @fuzz: specifies fuzz value that is used to filter noise from
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+ * the event stream.
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+ * @flat: values that are within this value will be discarded by
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+ * joydev interface and reported as 0 instead.
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+ * @resolution: specifies resolution for the values reported for
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+ * the axis.
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+ *
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+ * Note that input core does not clamp reported values to the
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+ * [minimum, maximum] limits, such task is left to userspace.
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+ *
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+ * Resolution for main axes (ABS_X, ABS_Y, ABS_Z) is reported in
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+ * units per millimeter (units/mm), resolution for rotational axes
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+ * (ABS_RX, ABS_RY, ABS_RZ) is reported in units per radian.
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+ */
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+type input_absinfo struct {
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+ value int32;
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+ minimum int32;
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+ maximum int32;
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+ fuzz int32;
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+ flat int32;
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+ resolution int32;
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+}
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+
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+const INPUT_KEYMAP_BYINDEX = (1 << 0)
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+
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+
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+/**
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+ * struct input_keymap_entry - used by EVIOCGKEYCODE/EVIOCSKEYCODE ioctls
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+ * @scancode: scancode represented in machine-endian form.
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+ * @len: length of the scancode that resides in @scancode buffer.
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+ * @index: index in the keymap, may be used instead of scancode
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+ * @flags: allows to specify how kernel should handle the request. For
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+ * example, setting INPUT_KEYMAP_BYINDEX flag indicates that kernel
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+ * should perform lookup in keymap by @index instead of @scancode
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+ * @keycode: key code assigned to this scancode
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+ *
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+ * The structure is used to retrieve and modify keymap data. Users have
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+ * option of performing lookup either by @scancode itself or by @index
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+ * in keymap entry. EVIOCGKEYCODE will also return scancode or index
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+ * (depending on which element was used to perform lookup).
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+ */
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+type input_keymap_entry struct {
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+ flags uint8;
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+ len uint8;
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+ index uint16;
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+ keycode uint32;
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+ scancode [32]uint8;
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+};
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+
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+type input_mask struct {
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+ type_ uint32;
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+ codes_size uint32;
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+ codes_ptr uint32;
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+};
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+
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+
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+type uint32p = [2]uint32
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+const sizeof_uint32p = unsafe.Sizeof(*((*uint32p)(nil)))
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+const sizeof_int32 = unsafe.Sizeof(*((*int32)(nil)))
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+const sizeof_uint32 = unsafe.Sizeof(*((*uint32)(nil)))
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+const sizeof_input_id = unsafe.Sizeof(*((*input_id)(nil)))
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+const sizeof_input_keymap_entry = unsafe.Sizeof(*((*input_keymap_entry)(nil)))
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+const sizeof_input_absinfo = unsafe.Sizeof(*((*input_absinfo)(nil)))
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+const sizeof_input_mask = unsafe.Sizeof(*((*input_mask)(nil)))
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+const sizeof_ff_effect = unsafe.Sizeof(*((*ff_effect)(nil)))
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+
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+
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+
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+var EVIOCGVERSION = IOR('E', 0x01, sizeof_int32) /* get driver version */
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+var EVIOCGID = IOR('E', 0x02, sizeof_input_id) /* get device ID */
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+var EVIOCGREP = IOR('E', 0x03, sizeof_uint32p) /* get repeat settings */
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+var EVIOCSREP = IOW('E', 0x03, sizeof_uint32p) /* set repeat settings */
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+
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+var EVIOCGKEYCODE = IOR('E', 0x04, sizeof_uint32) /* get keycode */
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+var EVIOCGKEYCODE_V2= IOR('E', 0x04, sizeof_input_keymap_entry)
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+var EVIOCSKEYCODE = IOW('E', 0x04, sizeof_uint32p) /* set keycode */
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+var EVIOCSKEYCODE_V2= IOW('E', 0x04, sizeof_input_keymap_entry)
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+
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+func EVIOCGNAME(len uintptr) uint32{
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+ return IOC(IOC_READ, 'E', 0x06, len) /* get device name */
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+}
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+
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+func EVIOCGPHYS(len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x07, len) /* get physical location */
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+}
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+
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+func EVIOCGUNIQ(len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x08, len) /* get unique identifier */
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+}
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+
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+func EVIOCGPROP(len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x09, len) /* get device properties */
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+}
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+
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+/**
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+ * EVIOCGMTSLOTS(len uintptr) uint32 { - get MT slot values
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+ * @len: size of the data buffer in bytes
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+ *
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+ * The ioctl buffer argument should be binary equivalent to
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+ *
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+ * type input_mt_request_layout struct {
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+ * __u32 code;
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+ * __s32 values[num_slots];
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+ * };
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+ *
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+ * where num_slots is the (arbitrary) number of MT slots to extract.
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+ *
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+ * The ioctl size argument (len uintptr) uint32 { is the size of the buffer, which
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+ * should satisfy len = (num_slots + 1) * sizeof(__s32). If len is
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+ * too small to fit all available slots, the first num_slots are
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+ * returned.
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+ *
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+ * Before the call, code is set to the wanted ABS_MT event type. On
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+ * return, values[] is filled with the slot values for the specified
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+ * ABS_MT code.
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+ *
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+ * If the request code is not an ABS_MT value, -EINVAL is returned.
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+ */
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+func EVIOCGMTSLOTS(len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x0a, len)
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+}
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+
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+func EVIOCGKEY(len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x18, len) /* get global key state */
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+}
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+
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+func EVIOCGLED(len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x19, len) /* get all LEDs */
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+}
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+
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+func EVIOCGSND(len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x1a, len) /* get all sounds status */
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+}
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+
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+func EVIOCGSW(len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x1b, len) /* get all switch states */
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+}
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+
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+func EVIOCGBIT(ev uint32, len uintptr) uint32 {
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+ return IOC(IOC_READ, 'E', 0x20 + (ev), len) /* get event bits */
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+}
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+
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+func EVIOCGABS(abs uint32) uint32 {
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+ return IOR('E', 0x40 + (abs), sizeof_input_absinfo) /* get abs value/limits */
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+}
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+
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+func EVIOCSABS(abs uint32) uint32 {
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+ return IOW('E', 0xc0 + (abs), sizeof_input_absinfo) /* set abs value/limits */
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+}
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+
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+var EVIOCSFF = IOW('E', 0x80, sizeof_ff_effect) /* send a force effect to a force feedback device */
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+var EVIOCRMFF = IOW('E', 0x81, sizeof_int32) /* Erase a force effect */
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+var EVIOCGEFFECTS = IOR('E', 0x84, sizeof_int32) /* Report number of effects playable at the same time */
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+
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+var EVIOCGRAB = IOW('E', 0x90, sizeof_int32) /* Grab/Release device */
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+var EVIOCREVOKE = IOW('E', 0x91, sizeof_int32) /* Revoke device access */
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+
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+/**
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+ * EVIOCGMASK - Retrieve current event mask
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+ *
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+ * This ioctl allows user to retrieve the current event mask for specific
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+ * event type. The argument must be of type "struct input_mask" and
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+ * specifies the event type to query, the address of the receive buffer and
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+ * the size of the receive buffer.
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+ *
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+ * The event mask is a per-client mask that specifies which events are
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+ * forwarded to the client. Each event code is represented by a single bit
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+ * in the event mask. If the bit is set, the event is passed to the client
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+ * normally. Otherwise, the event is filtered and will never be queued on
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+ * the client's receive buffer.
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+ *
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+ * Event masks do not affect global state of the input device. They only
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+ * affect the file descriptor they are applied to.
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+ *
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+ * The default event mask for a client has all bits set, i.e. all events
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+ * are forwarded to the client. If the kernel is queried for an unknown
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+ * event type or if the receive buffer is larger than the number of
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+ * event codes known to the kernel, the kernel returns all zeroes for those
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+ * codes.
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+ *
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+ * At maximum, codes_size bytes are copied.
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+ *
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+ * This ioctl may fail with ENODEV in case the file is revoked, EFAULT
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+ * if the receive-buffer points to invalid memory, or EINVAL if the kernel
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+ * does not implement the ioctl.
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+ */
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+var EVIOCGMASK = IOR('E', 0x92, sizeof_input_mask) /* Get event-masks */
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+
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+/**
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+ * EVIOCSMASK - Set event mask
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+ *
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+ * This ioctl is the counterpart to EVIOCGMASK. Instead of receiving the
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+ * current event mask, this changes the client's event mask for a specific
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+ * type. See EVIOCGMASK for a description of event-masks and the
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+ * argument-type.
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+ *
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+ * This ioctl provides full forward compatibility. If the passed event type
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+ * is unknown to the kernel, or if the number of event codes specified in
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+ * the mask is bigger than what is known to the kernel, the ioctl is still
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+ * accepted and applied. However, any unknown codes are left untouched and
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+ * stay cleared. That means, the kernel always filters unknown codes
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+ * regardless of what the client requests. If the new mask doesn't cover
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+ * all known event-codes, all remaining codes are automatically cleared and
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+ * thus filtered.
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+ *
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+ * This ioctl may fail with ENODEV in case the file is revoked. EFAULT is
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+ * returned if the receive-buffer points to invalid memory. EINVAL is returned
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+ * if the kernel does not implement the ioctl.
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+ */
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+var EVIOCSMASK = IOW('E', 0x93, sizeof_input_mask) /* Set event-masks */
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+
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+var EVIOCSCLOCKID = IOW('E', 0xa0, sizeof_int32) /* Set clockid to be used for timestamps */
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+
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+/*
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+ * IDs.
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+ */
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+
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+const ID_BUS = 0
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+const ID_VENDOR = 1
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+const ID_PRODUCT = 2
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+const ID_VERSION = 3
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+
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+const BUS_PCI = 0x01
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+const BUSISAPNP = 0x02
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+const BUS_USB = 0x03
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+const BUS_HIL = 0x04
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+const BUS_BLUETOOTH = 0x05
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+const BUS_VIRTUAL = 0x06
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+
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+const BUSISA = 0x10
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+const BUSI8042 = 0x11
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+const BUS_XTKBD = 0x12
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+const BUS_RS232 = 0x13
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+const BUS_GAMEPORT = 0x14
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+const BUS_PARPORT = 0x15
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+const BUS_AMIGA = 0x16
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+const BUS_ADB = 0x17
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+const BUSI2C = 0x18
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+const BUS_HOST = 0x19
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+const BUS_GSC = 0x1A
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+const BUS_ATARI = 0x1B
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+const BUS_SPI = 0x1C
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+
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+/*
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+ * MT_TOOL types
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+ */
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+const MT_TOOL_FINGER = 0
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+const MT_TOOL_PEN = 1
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+const MT_TOOL_PALM = 2
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+const MT_TOOL_MAX = 2
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+
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+/*
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+ * Values describing the status of a force-feedback effect
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+ */
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+const FF_STATUS_STOPPED = 0x00
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+const FF_STATUS_PLAYING = 0x01
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+const FF_STATUS_MAX = 0x01
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+
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+/*
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+ * Structures used in ioctls to upload effects to a device
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+ * They are pieces of a bigger structure (called ff_effect)
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+ */
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+
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+/*
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+ * All duration values are expressed in ms. Values above 32767 ms (0x7fff)
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+ * should not be used and have unspecified results.
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+ */
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+
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+/**
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+ * struct ff_replay - defines scheduling of the force-feedback effect
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+ * @length: duration of the effect
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+ * @delay: delay before effect should start playing
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+ */
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+type ff_replay struct {
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+ length uint16
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+ delay uint16
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+};
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+
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+/**
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+ * struct ff_trigger - defines what triggers the force-feedback effect
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+ * @button: number of the button triggering the effect
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+ * @interval: controls how soon the effect can be re-triggered
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+ */
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+type ff_trigger struct {
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+ button uint16
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+ interval uint16
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+};
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+
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+/**
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+ * struct ff_envelope - generic force-feedback effect envelope
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+ * @attack_length: duration of the attack (ms)
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+ * @attack_level: level at the beginning of the attack
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+ * @fade_length: duration of fade (ms)
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+ * @fade_level: level at the end of fade
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+ *
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+ * The @attack_level and @fade_level are absolute values; when applying
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+ * envelope force-feedback core will convert to positive/negative
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+ * value based on polarity of the default level of the effect.
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+ * Valid range for the attack and fade levels is 0x0000 - 0x7fff
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+ */
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+type ff_envelope struct {
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+ attack_length uint16
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+ attack_level uint16
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+ fade_length uint16
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+ fade_level uint16
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+};
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+
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+/**
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+ * struct ff_constant_effect - defines parameters of a constant force-feedback effect
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+ * @level: strength of the effect; may be negative
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+ * @envelope: envelope data
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+ */
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+type ff_constant_effect struct {
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+ level int16
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+ envelope ff_envelope
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+};
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+
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+/**
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+ * struct ff_ramp_effect - defines parameters of a ramp force-feedback effect
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+ * @start_level: beginning strength of the effect; may be negative
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+ * @end_level: final strength of the effect; may be negative
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+ * @envelope: envelope data
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+ */
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+type ff_ramp_effect struct {
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+ start_level int16
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+ end_level int16
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+ envelope ff_envelope
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+};
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+
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+/**
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+ * struct ff_condition_effect - defines a spring or friction force-feedback effect
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+ * @right_saturation: maximum level when joystick moved all way to the right
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+ * @left_saturation: same for the left side
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+ * @right_coeff: controls how fast the force grows when the joystick moves
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+ * to the right
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+ * @left_coeff: same for the left side
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+ * @deadband: size of the dead zone, where no force is produced
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+ * @center: position of the dead zone
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+ */
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+type ff_condition_effect struct {
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+ right_saturation uint16
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+ left_saturation uint16
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+
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+ right_coeff int16
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+ left_coeff int16
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+
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+ deadband uint16
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+ center int16
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+};
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+
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+/**
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+ * struct ff_periodic_effect - defines parameters of a periodic force-feedback effect
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+ * @waveform: kind of the effect (wave)
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+ * @period: period of the wave (ms)
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+ * @magnitude: peak value
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+ * @offset: mean value of the wave (roughly)
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+ * @phase: 'horizontal' shift
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+ * @envelope: envelope data
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+ * @custom_len: number of samples (FF_CUSTOM only)
|
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|
+ * @custom_data: buffer of samples (FF_CUSTOM only)
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+ *
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+ * Known waveforms - FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP,
|
|
|
+ * FF_SAW_DOWN, FF_CUSTOM. The exact syntax FF_CUSTOM is undefined
|
|
|
+ * for the time being as no driver supports it yet.
|
|
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+ *
|
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+ * Note: the data pointed by custom_data is copied by the driver.
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|
+ * You can therefore dispose of the memory after the upload/update.
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|
|
+ */
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+type ff_periodic_effect struct {
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|
+ waveform uint16
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+ period uint16
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+ magnitude int16
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+ offset int16
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+ phase uint16
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+
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+ envelope ff_envelope
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+
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+ custom_len uint32
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+ custom_data *int16;
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|
|
+};
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+
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|
|
+/**
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+ * struct ff_rumble_effect - defines parameters of a periodic force-feedback effect
|
|
|
+ * @strong_magnitude: magnitude of the heavy motor
|
|
|
+ * @weak_magnitude: magnitude of the light one
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+ *
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+ * Some rumble pads have two motors of different weight. Strong_magnitude
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|
+ * represents the magnitude of the vibration generated by the heavy one.
|
|
|
+ */
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+type ff_rumble_effect struct {
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|
+ strong_magnitude uint16
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|
+ weak_magnitude uint16
|
|
|
+};
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+
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+const ff_effect_union_size = unsafe.Sizeof(*((*ff_periodic_effect)(nil)))
|
|
|
+
|
|
|
+/**
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|
|
+ * struct ff_effect - defines force feedback effect
|
|
|
+ * @type: type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING,
|
|
|
+ * FF_FRICTION, FF_DAMPER, FF_RUMBLE, FFINERTIA, or FF_CUSTOM)
|
|
|
+ * @id: an unique id assigned to an effect
|
|
|
+ * @direction: direction of the effect
|
|
|
+ * @trigger: trigger conditions (struct ff_trigger)
|
|
|
+ * @replay: scheduling of the effect (struct ff_replay)
|
|
|
+ * @u: effect-specific structure (one of ff_constant_effect, ff_ramp_effect,
|
|
|
+ * ff_periodic_effect, ff_condition_effect, ff_rumble_effect) further
|
|
|
+ * defining effect parameters
|
|
|
+ *
|
|
|
+ * This structure is sent through ioctl from the application to the driver.
|
|
|
+ * To create a new effect application should set its @id to -1; the kernel
|
|
|
+ * will return assigned @id which can later be used to update or delete
|
|
|
+ * this effect.
|
|
|
+ *
|
|
|
+ * Direction of the effect is encoded as follows:
|
|
|
+ * 0 deg -> 0x0000 (down)
|
|
|
+ * 90 deg -> 0x4000 (left)
|
|
|
+ * 180 deg -> 0x8000 (up)
|
|
|
+ * 270 deg -> 0xC000 (right)
|
|
|
+ */
|
|
|
+type ff_effect struct {
|
|
|
+ type_ uint16
|
|
|
+ id int16
|
|
|
+ direction uint16
|
|
|
+ trigger ff_trigger
|
|
|
+ replay ff_replay
|
|
|
+ // This was a union in C, somulate with a byte buffer with size of largest element
|
|
|
+ u [ff_effect_union_size]byte
|
|
|
+};
|
|
|
+
|
|
|
+type ff_effect_u_constant struct {
|
|
|
+ type_ uint16
|
|
|
+ id int16
|
|
|
+ direction uint16
|
|
|
+ trigger ff_trigger
|
|
|
+ replay ff_replay
|
|
|
+ constant ff_constant_effect
|
|
|
+};
|
|
|
+
|
|
|
+
|
|
|
+type ff_effect_u_ramp struct {
|
|
|
+ type_ uint16
|
|
|
+ id int16
|
|
|
+ direction uint16
|
|
|
+ trigger ff_trigger
|
|
|
+ replay ff_replay
|
|
|
+ ramp ff_ramp_effect
|
|
|
+};
|
|
|
+
|
|
|
+
|
|
|
+type ff_effect_u_periodic struct {
|
|
|
+ type_ uint16
|
|
|
+ id int16
|
|
|
+ direction uint16
|
|
|
+ trigger ff_trigger
|
|
|
+ replay ff_replay
|
|
|
+ periodic ff_periodic_effect
|
|
|
+};
|
|
|
+
|
|
|
+type ff_effect_u_condition struct {
|
|
|
+ type_ uint16
|
|
|
+ id int16
|
|
|
+ direction uint16
|
|
|
+ trigger ff_trigger
|
|
|
+ replay ff_replay
|
|
|
+ condition [2]ff_condition_effect; /* One for each axis */
|
|
|
+};
|
|
|
+
|
|
|
+type ff_effect_u_rumble struct {
|
|
|
+ type_ uint16
|
|
|
+ id int16
|
|
|
+ direction uint16
|
|
|
+ trigger ff_trigger
|
|
|
+ replay ff_replay
|
|
|
+ rumble ff_rumble_effect
|
|
|
+};
|
|
|
+
|
|
|
+
|
|
|
+/*
|
|
|
+ * Force feedback effect types
|
|
|
+ */
|
|
|
+
|
|
|
+const FF_RUMBLE = 0x50
|
|
|
+const FF_PERIODIC = 0x51
|
|
|
+const FF_CONSTANT = 0x52
|
|
|
+const FF_SPRING = 0x53
|
|
|
+const FF_FRICTION = 0x54
|
|
|
+const FF_DAMPER = 0x55
|
|
|
+const FFINERTIA = 0x56
|
|
|
+const FF_RAMP = 0x57
|
|
|
+
|
|
|
+const FF_EFFECT_MIN = FF_RUMBLE
|
|
|
+const FF_EFFECT_MAX = FF_RAMP
|
|
|
+
|
|
|
+/*
|
|
|
+ * Force feedback periodic effect types
|
|
|
+ */
|
|
|
+
|
|
|
+const FF_SQUARE = 0x58
|
|
|
+const FF_TRIANGLE = 0x59
|
|
|
+const FF_SINE = 0x5a
|
|
|
+const FF_SAW_UP = 0x5b
|
|
|
+const FF_SAW_DOWN = 0x5c
|
|
|
+const FF_CUSTOM = 0x5d
|
|
|
+
|
|
|
+const FF_WAVEFORM_MIN = FF_SQUARE
|
|
|
+const FF_WAVEFORM_MAX = FF_CUSTOM
|
|
|
+
|
|
|
+/*
|
|
|
+ * Set ff device properties
|
|
|
+ */
|
|
|
+
|
|
|
+const FF_GAIN = 0x60
|
|
|
+const FF_AUTOCENTER = 0x61
|
|
|
+
|
|
|
+/*
|
|
|
+ * ff->playback(effect_id = FF_GAIN) is the first effect_id to
|
|
|
+ * cause a collision with another ff method, in this case ff->set_gain().
|
|
|
+ * Therefore the greatest safe value for effect_id is FF_GAIN - 1,
|
|
|
+ * and thus the total number of effects should never exceed FF_GAIN.
|
|
|
+ */
|
|
|
+const FF_MAX_EFFECTS = FF_GAIN
|
|
|
+
|
|
|
+const FF_MAX = 0x7f
|
|
|
+const FF_CNT = (FF_MAX+1)
|
|
|
+
|