Merge branch 'for-5.4/sb0540' into for-linus (7af0f839) · Commits · EulixOS / Software / Kernel

MAINTAINERS

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		@@ -4308,6 +4308,12 @@ S: Maintained
		F: Documentation/filesystems/cramfs.txt
		F: fs/cramfs/

		CREATIVE SB0540
		M: Bastien Nocera <hadess@hadess.net>
		L: linux-input@vger.kernel.org
		S: Maintained
		F: drivers/hid/hid-creative-sb0540.c

		CRYPTO API
		M: Herbert Xu <herbert@gondor.apana.org.au>
		M: "David S. Miller" <davem@davemloft.net>

drivers/hid/Kconfig

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		@@ -273,6 +273,15 @@ config HID_CP2112
		and gpiochip to expose these functions of the CP2112. The
		customizable USB descriptor fields are exposed as sysfs attributes.

		config HID_CREATIVE_SB0540
		tristate "Creative SB0540 infrared receiver"
		depends on USB_HID
		help
		Support for Creative infrared SB0540-compatible remote controls, such
		as the RM-1500 and RM-1800 remotes.

		Say Y here if you want support for Creative SB0540 infrared receiver.

		config HID_CYPRESS
		tristate "Cypress mouse and barcode readers"
		depends on HID

drivers/hid/Makefile

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		@@ -27,6 +27,7 @@ obj-$(CONFIG_HID_ALPS) += hid-alps.o
		obj-$(CONFIG_HID_ACRUX) += hid-axff.o
		obj-$(CONFIG_HID_APPLE) += hid-apple.o
		obj-$(CONFIG_HID_APPLEIR) += hid-appleir.o
		obj-$(CONFIG_HID_CREATIVE_SB0540) += hid-creative-sb0540.o
		obj-$(CONFIG_HID_ASUS) += hid-asus.o
		obj-$(CONFIG_HID_AUREAL) += hid-aureal.o
		obj-$(CONFIG_HID_BELKIN) += hid-belkin.o

drivers/hid/hid-creative-sb0540.c

0 → 100644

+268 −0

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		// SPDX-License-Identifier: GPL-2.0
		/*
		* HID driver for the Creative SB0540 receiver
		*
		* Copyright (C) 2019 Red Hat Inc. All Rights Reserved
		*
		*/

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

		MODULE_AUTHOR("Bastien Nocera <hadess@hadess.net>");
		MODULE_DESCRIPTION("HID Creative SB0540 receiver");
		MODULE_LICENSE("GPL");

		static const unsigned short creative_sb0540_key_table[] = {
		KEY_POWER,
		KEY_RESERVED, /* text: 24bit */
		KEY_RESERVED, /* 24bit wheel up */
		KEY_RESERVED, /* 24bit wheel down */
		KEY_RESERVED, /* text: CMSS */
		KEY_RESERVED, /* CMSS wheel Up */
		KEY_RESERVED, /* CMSS wheel Down */
		KEY_RESERVED, /* text: EAX */
		KEY_RESERVED, /* EAX wheel up */
		KEY_RESERVED, /* EAX wheel down */
		KEY_RESERVED, /* text: 3D Midi */
		KEY_RESERVED, /* 3D Midi wheel up */
		KEY_RESERVED, /* 3D Midi wheel down */
		KEY_MUTE,
		KEY_VOLUMEUP,
		KEY_VOLUMEDOWN,
		KEY_UP,
		KEY_LEFT,
		KEY_RIGHT,
		KEY_REWIND,
		KEY_OK,
		KEY_FASTFORWARD,
		KEY_DOWN,
		KEY_AGAIN, /* text: Return, symbol: Jump to */
		KEY_PLAY, /* text: Start */
		KEY_ESC, /* text: Cancel */
		KEY_RECORD,
		KEY_OPTION,
		KEY_MENU, /* text: Display */
		KEY_PREVIOUS,
		KEY_PLAYPAUSE,
		KEY_NEXT,
		KEY_SLOW,
		KEY_STOP,
		KEY_NUMERIC_1,
		KEY_NUMERIC_2,
		KEY_NUMERIC_3,
		KEY_NUMERIC_4,
		KEY_NUMERIC_5,
		KEY_NUMERIC_6,
		KEY_NUMERIC_7,
		KEY_NUMERIC_8,
		KEY_NUMERIC_9,
		KEY_NUMERIC_0
		};

		/*
		* Codes and keys from lirc's
		* remotes/creative/lircd.conf.alsa_usb
		* order and size must match creative_sb0540_key_table[] above
		*/
		static const unsigned short creative_sb0540_codes[] = {
		0x619E,
		0x916E,
		0x926D,
		0x936C,
		0x718E,
		0x946B,
		0x956A,
		0x8C73,
		0x9669,
		0x9768,
		0x9867,
		0x9966,
		0x9A65,
		0x6E91,
		0x629D,
		0x639C,
		0x7B84,
		0x6B94,
		0x728D,
		0x8778,
		0x817E,
		0x758A,
		0x8D72,
		0x8E71,
		0x8877,
		0x7C83,
		0x738C,
		0x827D,
		0x7689,
		0x7F80,
		0x7986,
		0x7A85,
		0x7D82,
		0x857A,
		0x8B74,
		0x8F70,
		0x906F,
		0x8A75,
		0x847B,
		0x7887,
		0x8976,
		0x837C,
		0x7788,
		0x807F
		};

		struct creative_sb0540 {
		struct input_dev *input_dev;
		struct hid_device *hid;
		unsigned short keymap[ARRAY_SIZE(creative_sb0540_key_table)];
		};

		static inline u64 reverse(u64 data, int bits)
		{
		int i;
		u64 c;

		c = 0;
		for (i = 0; i < bits; i++) {
		c \|= (u64) (((data & (((u64) 1) << i)) ? 1 : 0))
		<< (bits - 1 - i);
		}
		return (c);
		}

		static int get_key(struct creative_sb0540 *creative_sb0540, u64 keycode)
		{
		int i;

		for (i = 0; i < ARRAY_SIZE(creative_sb0540_codes); i++) {
		if (creative_sb0540_codes[i] == keycode)
		return creative_sb0540->keymap[i];
		}

		return 0;

		}

		static int creative_sb0540_raw_event(struct hid_device *hid,
		struct hid_report report, u8 data, int len)
		{
		struct creative_sb0540 *creative_sb0540 = hid_get_drvdata(hid);
		u64 code, main_code;
		int key;

		if (len != 6)
		return 0;

		/* From daemons/hw_hiddev.c sb0540_rec() in lirc */
		code = reverse(data[5], 8);
		main_code = (code << 8) + ((~code) & 0xff);

		/*
		* Flip to get values in the same format as
		* remotes/creative/lircd.conf.alsa_usb in lirc
		*/
		main_code = ((main_code & 0xff) << 8) +
		((main_code & 0xff00) >> 8);

		key = get_key(creative_sb0540, main_code);
		if (key == 0 \|\| key == KEY_RESERVED) {
		hid_err(hid, "Could not get a key for main_code %llX\n",
		main_code);
		return 0;
		}

		input_report_key(creative_sb0540->input_dev, key, 1);
		input_report_key(creative_sb0540->input_dev, key, 0);
		input_sync(creative_sb0540->input_dev);

		/* let hidraw and hiddev handle the report */
		return 0;
		}

		static int creative_sb0540_input_configured(struct hid_device *hid,
		struct hid_input *hidinput)
		{
		struct input_dev *input_dev = hidinput->input;
		struct creative_sb0540 *creative_sb0540 = hid_get_drvdata(hid);
		int i;

		creative_sb0540->input_dev = input_dev;

		input_dev->keycode = creative_sb0540->keymap;
		input_dev->keycodesize = sizeof(unsigned short);
		input_dev->keycodemax = ARRAY_SIZE(creative_sb0540->keymap);

		input_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_REP);

		memcpy(creative_sb0540->keymap, creative_sb0540_key_table,
		sizeof(creative_sb0540->keymap));
		for (i = 0; i < ARRAY_SIZE(creative_sb0540_key_table); i++)
		set_bit(creative_sb0540->keymap[i], input_dev->keybit);
		clear_bit(KEY_RESERVED, input_dev->keybit);

		return 0;
		}

		static int creative_sb0540_input_mapping(struct hid_device *hid,
		struct hid_input hi, struct hid_field field,
		struct hid_usage usage, unsigned long bit, int max)
		{
		/*
		* We are remapping the keys ourselves, so ignore the hid-input
		* keymap processing.
		*/
		return -1;
		}

		static int creative_sb0540_probe(struct hid_device *hid,
		const struct hid_device_id *id)
		{
		int ret;
		struct creative_sb0540 *creative_sb0540;

		creative_sb0540 = devm_kzalloc(&hid->dev,
		sizeof(struct creative_sb0540), GFP_KERNEL);

		if (!creative_sb0540)
		return -ENOMEM;

		creative_sb0540->hid = hid;

		/* force input as some remotes bypass the input registration */
		hid->quirks \|= HID_QUIRK_HIDINPUT_FORCE;

		hid_set_drvdata(hid, creative_sb0540);

		ret = hid_parse(hid);
		if (ret) {
		hid_err(hid, "parse failed\n");
		return ret;
		}

		ret = hid_hw_start(hid, HID_CONNECT_DEFAULT);
		if (ret) {
		hid_err(hid, "hw start failed\n");
		return ret;
		}

		return ret;
		}

		static const struct hid_device_id creative_sb0540_devices[] = {
		{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVE_SB0540) },
		{ }
		};
		MODULE_DEVICE_TABLE(hid, creative_sb0540_devices);

		static struct hid_driver creative_sb0540_driver = {
		.name = "creative-sb0540",
		.id_table = creative_sb0540_devices,
		.raw_event = creative_sb0540_raw_event,
		.input_configured = creative_sb0540_input_configured,
		.probe = creative_sb0540_probe,
		.input_mapping = creative_sb0540_input_mapping,
		};
		module_hid_driver(creative_sb0540_driver);

drivers/hid/hid-ids.h

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		@@ -314,6 +314,7 @@
		#define USB_VENDOR_ID_CREATIVELABS 0x041e
		#define USB_DEVICE_ID_CREATIVE_SB_OMNI_SURROUND_51 0x322c
		#define USB_DEVICE_ID_PRODIKEYS_PCMIDI 0x2801
		#define USB_DEVICE_ID_CREATIVE_SB0540 0x3100

		#define USB_VENDOR_ID_CVTOUCH 0x1ff7
		#define USB_DEVICE_ID_CVTOUCH_SCREEN 0x0013