30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 #include <linux/input.h>
34 #include <linux/hid.h>
42 const signed short *
ff;
45 static const signed short ff_rumble[] = {
50 static const signed short ff_joystick[] = {
55 static const signed short ff_joystick_ac[] = {
62 { 0x046d, 0xc211, ff_rumble },
63 { 0x046d, 0xc219, ff_rumble },
64 { 0x046d, 0xc283, ff_joystick },
65 { 0x046d, 0xc286, ff_joystick_ac },
66 { 0x046d, 0xc287, ff_joystick_ac },
67 { 0x046d, 0xc293, ff_joystick },
68 { 0x046d, 0xc295, ff_joystick },
71 static int hid_lgff_play(
struct input_dev *
dev,
void *
data,
struct ff_effect *effect)
73 struct hid_device *hid = input_get_drvdata(dev);
79 #define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
81 switch (effect->
type) {
83 x = effect->
u.
ramp.start_level + 0x7f;
84 y = effect->
u.
ramp.end_level + 0x7f;
87 report->
field[0]->value[0] = 0x51;
88 report->
field[0]->value[1] = 0x08;
89 report->
field[0]->value[2] =
x;
90 report->
field[0]->value[3] =
y;
91 dbg_hid(
"(x, y)=(%04x, %04x)\n", x, y);
96 right = effect->
u.
rumble.strong_magnitude;
97 left = effect->
u.
rumble.weak_magnitude;
98 right = right * 0xff / 0xffff;
99 left = left * 0xff / 0xffff;
102 report->
field[0]->value[0] = 0x42;
103 report->
field[0]->value[1] = 0x00;
106 dbg_hid(
"(left, right)=(%04x, %04x)\n", left, right);
113 static void hid_lgff_set_autocenter(
struct input_dev *dev,
u16 magnitude)
115 struct hid_device *hid = input_get_drvdata(dev);
119 magnitude = (magnitude >> 12) & 0xf;
122 *value++ = magnitude;
123 *value++ = magnitude;
134 struct input_dev *dev = hidinput->
input;
137 const signed short *ff_bits = ff_joystick;
142 if (list_empty(report_list)) {
143 hid_err(hid,
"No output report found\n");
149 field = report->
field[0];
156 if (dev->id.vendor == devices[i].
idVendor &&
157 dev->id.product == devices[i].
idProduct) {
158 ff_bits = devices[
i].
ff;
163 for (i = 0; ff_bits[
i] >= 0; i++)
164 set_bit(ff_bits[i], dev->ffbit);
171 dev->ff->set_autocenter = hid_lgff_set_autocenter;