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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/hid/hid-gaff.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'drivers/hid/hid-gaff.c')
-rw-r--r--drivers/hid/hid-gaff.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/hid/hid-gaff.c b/drivers/hid/hid-gaff.c
new file mode 100644
index 000000000..ec793a179
--- /dev/null
+++ b/drivers/hid/hid-gaff.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Force feedback support for GreenAsia (Product ID 0x12) based devices
+ *
+ * The devices are distributed under various names and the same USB device ID
+ * can be used in many game controllers.
+ *
+ * 0e8f:0012 "GreenAsia Inc. USB Joystick "
+ * - tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635.
+ *
+ * Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
+ */
+
+/*
+ */
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include "hid-ids.h"
+
+#ifdef CONFIG_GREENASIA_FF
+
+struct gaff_device {
+ struct hid_report *report;
+};
+
+static int hid_gaff_play(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct gaff_device *gaff = data;
+ 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;
+
+ gaff->report->field[0]->value[0] = 0x51;
+ gaff->report->field[0]->value[1] = 0x0;
+ gaff->report->field[0]->value[2] = right;
+ gaff->report->field[0]->value[3] = 0;
+ gaff->report->field[0]->value[4] = left;
+ gaff->report->field[0]->value[5] = 0;
+ dbg_hid("running with 0x%02x 0x%02x", left, right);
+ hid_hw_request(hid, gaff->report, HID_REQ_SET_REPORT);
+
+ gaff->report->field[0]->value[0] = 0xfa;
+ gaff->report->field[0]->value[1] = 0xfe;
+ gaff->report->field[0]->value[2] = 0x0;
+ gaff->report->field[0]->value[4] = 0x0;
+
+ hid_hw_request(hid, gaff->report, HID_REQ_SET_REPORT);
+
+ return 0;
+}
+
+static int gaff_input_configured(struct hid_device *hid, struct hid_input *hidinput)
+{
+ struct gaff_device *gaff;
+ struct hid_report *report;
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev = hidinput->input;
+ int error;
+
+ if (!list_is_first(&hidinput->list, &hid->inputs))
+ return 0;
+
+ report = list_first_entry_or_null(report_list, struct hid_report, list);
+ if (!report) {
+ hid_err(hid, "no output reports found\n");
+ return -ENODEV;
+ }
+ if (report->maxfield < 1) {
+ hid_err(hid, "no fields in the report\n");
+ return -ENODEV;
+ }
+
+ if (report->field[0]->report_count < 6) {
+ hid_err(hid, "not enough values in the field\n");
+ return -ENODEV;
+ }
+
+ gaff = kzalloc_obj(struct gaff_device);
+ if (!gaff)
+ return -ENOMEM;
+
+ gaff->report = report;
+ set_bit(FF_RUMBLE, dev->ffbit);
+
+ error = input_ff_create_memless(dev, gaff, hid_gaff_play);
+ if (error) {
+ kfree(gaff);
+ return error;
+ }
+
+ gaff->report->field[0]->value[0] = 0x51;
+ gaff->report->field[0]->value[1] = 0x00;
+ gaff->report->field[0]->value[2] = 0x00;
+ gaff->report->field[0]->value[3] = 0x00;
+ hid_hw_request(hid, gaff->report, HID_REQ_SET_REPORT);
+
+ gaff->report->field[0]->value[0] = 0xfa;
+ gaff->report->field[0]->value[1] = 0xfe;
+
+ hid_hw_request(hid, gaff->report, HID_REQ_SET_REPORT);
+
+ hid_info(hid, "Force Feedback for GreenAsia 0x12 devices by Lukasz Lubojanski <lukasz@lubojanski.info>\n");
+
+ return 0;
+}
+#else
+static inline int gaff_input_configured(struct hid_device *hdev,
+ struct hid_input *hidinput)
+{
+ return 0;
+}
+#endif
+
+static const struct hid_device_id ga_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012), },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, ga_devices);
+
+static struct hid_driver ga_driver = {
+ .name = "greenasia",
+ .id_table = ga_devices,
+ .input_configured = gaff_input_configured,
+};
+module_hid_driver(ga_driver);
+
+MODULE_DESCRIPTION("Force feedback support for GreenAsia (Product ID 0x12) based devices");
+MODULE_LICENSE("GPL");