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    Subject[PATCH v3 10/24] hid: Port hid-gaff to ff-memless-next
    Date
    Port hid-gaff to ff-memless-next

    Signed-off-by: Michal Malý <madcatxster@devoid-pointer.net>
    ---
    drivers/hid/Kconfig | 2 +-
    drivers/hid/hid-gaff.c | 32 +++++++++++++++++++++++---------
    2 files changed, 24 insertions(+), 10 deletions(-)

    diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
    index 1d4180c..4c59a88 100644
    --- a/drivers/hid/Kconfig
    +++ b/drivers/hid/Kconfig
    @@ -667,7 +667,7 @@ config HID_GREENASIA
    config GREENASIA_FF
    bool "GreenAsia (Product ID 0x12) force feedback support"
    depends on HID_GREENASIA
    - select INPUT_FF_MEMLESS
    + select INPUT_FF_MEMLESS_NEXT
    ---help---
    Say Y here if you have a GreenAsia (Product ID 0x12) based game controller
    (like MANTA Warrior MM816 and SpeedLink Strike2 SL-6635) or adapter
    diff --git a/drivers/hid/hid-gaff.c b/drivers/hid/hid-gaff.c
    index 2d8cead..f2f70c1 100644
    --- a/drivers/hid/hid-gaff.c
    +++ b/drivers/hid/hid-gaff.c
    @@ -31,8 +31,11 @@
    #include <linux/slab.h>
    #include <linux/hid.h>
    #include <linux/module.h>
    +#include <linux/input/ff-memless-next.h>
    #include "hid-ids.h"

    +#define FF_UPDATE_RATE 50
    +
    #ifdef CONFIG_GREENASIA_FF

    struct gaff_device {
    @@ -40,19 +43,30 @@ struct gaff_device {
    };

    static int hid_gaff_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 gaff_device *gaff = data;
    + const struct mlnx_rumble_force *rumble_force = &command->u.rumble_force;
    int left, right;

    - left = effect->u.rumble.strong_magnitude;
    - right = effect->u.rumble.weak_magnitude;
    -
    - dbg_hid("called with 0x%04x 0x%04x", left, right);
    -
    - left = left * 0xfe / 0xffff;
    - right = right * 0xfe / 0xffff;
    + switch (command->cmd) {
    + case MLNX_START_RUMBLE:
    + left = rumble_force->strong;
    + right = rumble_force->weak;
    +
    + dbg_hid("called with 0x%04x 0x%04x", left, right);
    +
    + left = left * 0xfe / 0xffff;
    + right = right * 0xfe / 0xffff;
    + break;
    + case MLNX_STOP_RUMBLE:
    + left = 0;
    + right = 0;
    + break;
    + default:
    + return -EINVAL;
    + }

    gaff->report->field[0]->value[0] = 0x51;
    gaff->report->field[0]->value[1] = 0x0;
    @@ -109,7 +123,7 @@ static int gaff_init(struct hid_device *hid)

    set_bit(FF_RUMBLE, dev->ffbit);

    - error = input_ff_create_memless(dev, gaff, hid_gaff_play);
    + error = input_ff_create_mlnx(dev, gaff, hid_gaff_play, FF_UPDATE_RATE);
    if (error) {
    kfree(gaff);
    return error;
    --
    1.9.2
    --
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