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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/input/joystick/maplecontrol.c | |
| download | linux-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.c | 194 |
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); |
