@@ -391,7 +391,7 @@ config LOGIRUMBLEPAD2_FF
config LOGIG940_FF
bool "Logitech Flight System G940 force feedback support"
depends on HID_LOGITECH
- select INPUT_FF_MEMLESS
+ select INPUT_FF_MEMLESS_NEXT
help
Say Y here if you want to enable force feedback support for Logitech
Flight System G940 devices.
@@ -23,9 +23,12 @@
#include <linux/input.h>
#include <linux/hid.h>
+#include <linux/input/ff-memless-next.h>
#include "hid-lg.h"
+#define FF_UPDATE_RATE 50
+
/*
* G940 Theory of Operation (from experimentation)
*
@@ -58,12 +61,11 @@ struct lg3ff_device {
};
static int hid_lg3ff_play(struct input_dev *dev, void *data,
- struct ff_effect *effect)
+ const struct mlnx_effect_command *command)
{
struct hid_device *hid = input_get_drvdata(dev);
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
- int x, y;
/*
* Available values in the field should always be 63, but we only use up to
@@ -72,30 +74,37 @@ static int hid_lg3ff_play(struct input_dev *dev, void *data,
memset(report->field[0]->value, 0,
sizeof(__s32) * report->field[0]->report_count);
- switch (effect->type) {
- case FF_CONSTANT:
-/*
- * Already clamped in ff_memless
- * 0 is center (different then other logitech)
- */
- x = effect->u.ramp.start_level;
- y = effect->u.ramp.end_level;
-
- /* send command byte */
- report->field[0]->value[0] = 0x51;
-
-/*
- * Sign backwards from other Force3d pro
- * which get recast here in two's complement 8 bits
- */
- report->field[0]->value[1] = (unsigned char)(-x);
- report->field[0]->value[31] = (unsigned char)(-y);
+ /* send command byte */
+ report->field[0]->value[0] = 0x51;
- hid_hw_request(hid, report, HID_REQ_SET_REPORT);
+ switch (command->cmd) {
+ case MLNX_START_COMBINED: {
+ const struct mlnx_simple_force *simple_force = &command->u.simple_force;
+ /* Scale down from MLNX range */
+ const int x = simple_force->x * 0xff / 0xffff;
+ const int y = simple_force->y * 0xff / 0xffff;
+
+ /*
+ * Sign backwards from other Force3d pro
+ * which get recast here in two's complement 8 bits
+ */
+ report->field[0]->value[1] = (unsigned char)x;
+ report->field[0]->value[31] = (unsigned char)y;
+ break;
+ }
+ case MLNX_STOP_COMBINED:
+ report->field[0]->value[1] = 0;
+ report->field[0]->value[31] = 0;
break;
+ default:
+ return -EINVAL;
}
+
+ hid_hw_request(hid, report, HID_REQ_SET_REPORT);
+
return 0;
}
+
static void hid_lg3ff_set_autocenter(struct input_dev *dev, u16 magnitude)
{
struct hid_device *hid = input_get_drvdata(dev);
@@ -123,6 +132,13 @@ static void hid_lg3ff_set_autocenter(struct input_dev *dev, u16 magnitude)
static const signed short ff3_joystick_ac[] = {
FF_CONSTANT,
+ FF_RAMP,
+ FF_PERIODIC,
+ FF_SQUARE,
+ FF_TRIANGLE,
+ FF_SINE,
+ FF_SAW_UP,
+ FF_SAW_DOWN,
FF_AUTOCENTER,
-1
};
@@ -143,7 +159,7 @@ int lg3ff_init(struct hid_device *hid)
for (i = 0; ff_bits[i] >= 0; i++)
set_bit(ff_bits[i], dev->ffbit);
- error = input_ff_create_memless(dev, NULL, hid_lg3ff_play);
+ error = input_ff_create_mlnx(dev, NULL, hid_lg3ff_play, FF_UPDATE_RATE);
if (error)
return error;
Port hid-lg3ff to ff-memless-next Signed-off-by: Michal Malý <madcatxster@devoid-pointer.net> --- drivers/hid/Kconfig | 2 +- drivers/hid/hid-lg3ff.c | 60 +++++++++++++++++++++++++++++++------------------ 2 files changed, 39 insertions(+), 23 deletions(-)