HID: Add driver for Retrode2 joypad adapter (13b2e1ba) · Commits · 戴 / test

drivers/hid/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -741,6 +741,14 @@ config HID_PRIMAX
		Support for Primax devices that are not fully compliant with the
		HID standard.

		config HID_RETRODE
		tristate "Retrode"
		depends on USB_HID
		---help---
		Support for

		* Retrode 2 cartridge and controller adapter

		config HID_ROCCAT
		tristate "Roccat device support"
		depends on USB_HID

drivers/hid/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -81,6 +81,7 @@ hid-picolcd-$(CONFIG_DEBUG_FS) += hid-picolcd_debugfs.o

		obj-$(CONFIG_HID_PLANTRONICS) += hid-plantronics.o
		obj-$(CONFIG_HID_PRIMAX) += hid-primax.o
		obj-$(CONFIG_HID_RETRODE) += hid-retrode.o
		obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o hid-roccat-common.o \
		hid-roccat-arvo.o hid-roccat-isku.o hid-roccat-kone.o \
		hid-roccat-koneplus.o hid-roccat-konepure.o hid-roccat-kovaplus.o \

drivers/hid/hid-core.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -2151,6 +2151,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
		#if IS_ENABLED(CONFIG_HID_PRODIKEYS)
		{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
		#endif
		#if IS_ENABLED(CONFIG_HID_RETRODE)
		{ HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY, USB_DEVICE_ID_RETRODE2) },
		#endif
		#if IS_ENABLED(CONFIG_HID_RMI)
		{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_COVER) },
		{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14) },

drivers/hid/hid-ids.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -386,6 +386,9 @@
		#define USB_VENDOR_ID_FUTABA 0x0547
		#define USB_DEVICE_ID_LED_DISPLAY 0x7000

		#define USB_VENDOR_ID_FUTURE_TECHNOLOGY 0x0403
		#define USB_DEVICE_ID_RETRODE2 0x97c1

		#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
		#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100

drivers/hid/hid-retrode.c

0 → 100644

+100 −0

Original line number	Diff line number	Diff line
		/*
		* HID driver for Retrode 2 controller adapter and plug-in extensions
		*
		* Copyright (c) 2017 Bastien Nocera <hadess@hadess.net>
		*/

		/*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms of the GNU General Public License as published by the Free
		* Software Foundation; either version 2 of the License, or (at your option)
		* any later version.
		*/

		#include <linux/input.h>
		#include <linux/slab.h>
		#include <linux/hid.h>
		#include <linux/module.h>
		#include "hid-ids.h"

		#define CONTROLLER_NAME_BASE "Retrode"

		static int retrode_input_configured(struct hid_device *hdev,
		struct hid_input *hi)
		{
		struct hid_field *field = hi->report->field[0];
		const char *suffix;
		int number = 0;
		char *name;

		switch (field->report->id) {
		case 0:
		suffix = "SNES Mouse";
		break;
		case 1:
		case 2:
		suffix = "SNES / N64";
		number = field->report->id;
		break;
		case 3:
		case 4:
		suffix = "Mega Drive";
		number = field->report->id - 2;
		break;
		default:
		hid_err(hdev, "Got unhandled report id %d\n", field->report->id);
		suffix = "Unknown";
		}

		if (number)
		name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
		"%s %s #%d", CONTROLLER_NAME_BASE,
		suffix, number);
		else
		name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
		"%s %s", CONTROLLER_NAME_BASE, suffix);

		if (!name)
		return -ENOMEM;

		hi->input->name = name;

		return 0;
		}

		static int retrode_probe(struct hid_device *hdev,
		const struct hid_device_id *id)
		{

		int ret;

		/* Has no effect on the mouse device */
		hdev->quirks \|= HID_QUIRK_MULTI_INPUT;

		ret = hid_parse(hdev);
		if (ret)
		return ret;

		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
		if (ret)
		return ret;

		return 0;
		}

		static const struct hid_device_id retrode_devices[] = {
		{ HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY, USB_DEVICE_ID_RETRODE2) },
		{ }
		};
		MODULE_DEVICE_TABLE(hid, retrode_devices);

		static struct hid_driver retrode_driver = {
		.name = "hid-retrode",
		.id_table = retrode_devices,
		.input_configured = retrode_input_configured,
		.probe = retrode_probe,
		};

		module_hid_driver(retrode_driver);

		MODULE_LICENSE("GPL");

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