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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/input/joystick/maplecontrol.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/input/joystick/maplecontrol.c')
-rw-r--r--drivers/input/joystick/maplecontrol.c194
1 files changed, 194 insertions, 0 deletions
diff --git a/drivers/input/joystick/maplecontrol.c b/drivers/input/joystick/maplecontrol.c
new file mode 100644
index 000000000..6293b6e81
--- /dev/null
+++ b/drivers/input/joystick/maplecontrol.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * SEGA Dreamcast controller driver
+ * Based on drivers/usb/iforce.c
+ *
+ * Copyright Yaegashi Takeshi, 2001
+ * Adrian McMenamin, 2008 - 2009
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
+MODULE_DESCRIPTION("SEGA Dreamcast controller driver");
+MODULE_LICENSE("GPL");
+
+struct dc_pad {
+ struct input_dev *dev;
+ struct maple_device *mdev;
+};
+
+static void dc_pad_callback(struct mapleq *mq)
+{
+ unsigned short buttons;
+ struct maple_device *mapledev = mq->dev;
+ struct dc_pad *pad = maple_get_drvdata(mapledev);
+ struct input_dev *dev = pad->dev;
+ unsigned char *res = mq->recvbuf->buf;
+
+ buttons = ~le16_to_cpup((__le16 *)(res + 8));
+
+ input_report_abs(dev, ABS_HAT0Y,
+ (buttons & 0x0010 ? -1 : 0) + (buttons & 0x0020 ? 1 : 0));
+ input_report_abs(dev, ABS_HAT0X,
+ (buttons & 0x0040 ? -1 : 0) + (buttons & 0x0080 ? 1 : 0));
+ input_report_abs(dev, ABS_HAT1Y,
+ (buttons & 0x1000 ? -1 : 0) + (buttons & 0x2000 ? 1 : 0));
+ input_report_abs(dev, ABS_HAT1X,
+ (buttons & 0x4000 ? -1 : 0) + (buttons & 0x8000 ? 1 : 0));
+
+ input_report_key(dev, BTN_C, buttons & 0x0001);
+ input_report_key(dev, BTN_B, buttons & 0x0002);
+ input_report_key(dev, BTN_A, buttons & 0x0004);
+ input_report_key(dev, BTN_START, buttons & 0x0008);
+ input_report_key(dev, BTN_Z, buttons & 0x0100);
+ input_report_key(dev, BTN_Y, buttons & 0x0200);
+ input_report_key(dev, BTN_X, buttons & 0x0400);
+ input_report_key(dev, BTN_SELECT, buttons & 0x0800);
+
+ input_report_abs(dev, ABS_GAS, res[10]);
+ input_report_abs(dev, ABS_BRAKE, res[11]);
+ input_report_abs(dev, ABS_X, res[12]);
+ input_report_abs(dev, ABS_Y, res[13]);
+ input_report_abs(dev, ABS_RX, res[14]);
+ input_report_abs(dev, ABS_RY, res[15]);
+}
+
+static int dc_pad_open(struct input_dev *dev)
+{
+ struct dc_pad *pad = dev_get_platdata(&dev->dev);
+
+ maple_getcond_callback(pad->mdev, dc_pad_callback, HZ/20,
+ MAPLE_FUNC_CONTROLLER);
+
+ return 0;
+}
+
+static void dc_pad_close(struct input_dev *dev)
+{
+ struct dc_pad *pad = dev_get_platdata(&dev->dev);
+
+ maple_getcond_callback(pad->mdev, dc_pad_callback, 0,
+ MAPLE_FUNC_CONTROLLER);
+}
+
+/* allow the controller to be used */
+static int probe_maple_controller(struct device *dev)
+{
+ static const short btn_bit[32] = {
+ BTN_C, BTN_B, BTN_A, BTN_START, -1, -1, -1, -1,
+ BTN_Z, BTN_Y, BTN_X, BTN_SELECT, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ };
+
+ static const short abs_bit[32] = {
+ -1, -1, -1, -1, ABS_HAT0Y, ABS_HAT0Y, ABS_HAT0X, ABS_HAT0X,
+ -1, -1, -1, -1, ABS_HAT1Y, ABS_HAT1Y, ABS_HAT1X, ABS_HAT1X,
+ ABS_GAS, ABS_BRAKE, ABS_X, ABS_Y, ABS_RX, ABS_RY, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ };
+
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct maple_driver *mdrv = to_maple_driver(dev->driver);
+ int i, error;
+ struct dc_pad *pad;
+ struct input_dev *idev;
+ unsigned long data = be32_to_cpu(mdev->devinfo.function_data[0]);
+
+ pad = kzalloc_obj(*pad);
+ idev = input_allocate_device();
+ if (!pad || !idev) {
+ error = -ENOMEM;
+ goto fail;
+ }
+
+ pad->dev = idev;
+ pad->mdev = mdev;
+
+ maple_set_drvdata(mdev, pad);
+
+ idev->open = dc_pad_open;
+ idev->close = dc_pad_close;
+
+ for (i = 0; i < 32; i++) {
+ if (data & (1 << i)) {
+ if (btn_bit[i] >= 0)
+ __set_bit(btn_bit[i], idev->keybit);
+ else if (abs_bit[i] >= 0)
+ __set_bit(abs_bit[i], idev->absbit);
+ }
+ }
+
+ if (idev->keybit[BIT_WORD(BTN_JOYSTICK)])
+ idev->evbit[0] |= BIT_MASK(EV_KEY);
+
+ if (idev->absbit[0])
+ idev->evbit[0] |= BIT_MASK(EV_ABS);
+
+ for (i = ABS_X; i <= ABS_BRAKE; i++)
+ input_set_abs_params(idev, i, 0, 255, 0, 0);
+
+ for (i = ABS_HAT0X; i <= ABS_HAT3Y; i++)
+ input_set_abs_params(idev, i, 1, -1, 0, 0);
+
+ idev->dev.platform_data = pad;
+ idev->dev.parent = &mdev->dev;
+ idev->name = mdev->product_name;
+ idev->id.bustype = BUS_HOST;
+
+ error = input_register_device(idev);
+ if (error)
+ goto fail;
+
+ mdev->driver = mdrv;
+
+ return 0;
+
+fail:
+ input_free_device(idev);
+ kfree(pad);
+ maple_set_drvdata(mdev, NULL);
+ return error;
+}
+
+static int remove_maple_controller(struct device *dev)
+{
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct dc_pad *pad = maple_get_drvdata(mdev);
+
+ mdev->callback = NULL;
+ input_unregister_device(pad->dev);
+ maple_set_drvdata(mdev, NULL);
+ kfree(pad);
+
+ return 0;
+}
+
+static struct maple_driver dc_pad_driver = {
+ .function = MAPLE_FUNC_CONTROLLER,
+ .drv = {
+ .name = "Dreamcast_controller",
+ .probe = probe_maple_controller,
+ .remove = remove_maple_controller,
+ },
+};
+
+static int __init dc_pad_init(void)
+{
+ return maple_driver_register(&dc_pad_driver);
+}
+
+static void __exit dc_pad_exit(void)
+{
+ maple_driver_unregister(&dc_pad_driver);
+}
+
+module_init(dc_pad_init);
+module_exit(dc_pad_exit);