[PATCH] USB: add driver for ATI/Philips USB RF remotes (735b0cbb) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/usb/input/Kconfig

+14 −0

Original line number	Original line	Diff line number	Diff line
	@@ -273,6 +273,20 @@ config USB_ATI_REMOTE
	To compile this driver as a module, choose M here: the module will be		To compile this driver as a module, choose M here: the module will be
	called ati_remote.		called ati_remote.

			config USB_ATI_REMOTE2
			tristate "ATI / Philips USB RF remote control"
			depends on USB && INPUT
			---help---
			Say Y here if you want to use an ATI or Philips USB RF remote control.
			These are RF remotes with USB receivers.
			ATI Remote Wonder II comes with some ATI's All-In-Wonder video cards
			and is also available as a separate product.
			This driver provides mouse pointer, left and right mouse buttons,
			and maps all the other remote buttons to keypress events.

			To compile this driver as a module, choose M here: the module will be
			called ati_remote2.

	config USB_KEYSPAN_REMOTE		config USB_KEYSPAN_REMOTE
	tristate "Keyspan DMR USB remote control (EXPERIMENTAL)"		tristate "Keyspan DMR USB remote control (EXPERIMENTAL)"
	depends on USB && INPUT && EXPERIMENTAL		depends on USB && INPUT && EXPERIMENTAL

drivers/usb/input/Makefile

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -28,6 +28,7 @@ endif

	obj-$(CONFIG_USB_AIPTEK) += aiptek.o		obj-$(CONFIG_USB_AIPTEK) += aiptek.o
	obj-$(CONFIG_USB_ATI_REMOTE) += ati_remote.o		obj-$(CONFIG_USB_ATI_REMOTE) += ati_remote.o
			obj-$(CONFIG_USB_ATI_REMOTE2) += ati_remote2.o
	obj-$(CONFIG_USB_HID) += usbhid.o		obj-$(CONFIG_USB_HID) += usbhid.o
	obj-$(CONFIG_USB_KBD) += usbkbd.o		obj-$(CONFIG_USB_KBD) += usbkbd.o
	obj-$(CONFIG_USB_KBTAB) += kbtab.o		obj-$(CONFIG_USB_KBTAB) += kbtab.o

drivers/usb/input/ati_remote2.c

0 → 100644

+477 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* ati_remote2 - ATI/Philips USB RF remote driver
			*
			* Copyright (C) 2005 Ville Syrjala <syrjala@sci.fi>
			*
			* This program is free software; you can redistribute it and/or modify
			* it under the terms of the GNU General Public License version 2
			* as published by the Free Software Foundation.
			*/

			#include <linux/usb_input.h>

			#define DRIVER_DESC "ATI/Philips USB RF remote driver"
			#define DRIVER_VERSION "0.1"

			MODULE_DESCRIPTION(DRIVER_DESC);
			MODULE_VERSION(DRIVER_VERSION);
			MODULE_AUTHOR("Ville Syrjala <syrjala@sci.fi>");
			MODULE_LICENSE("GPL");

			static unsigned int mode_mask = 0x1F;
			module_param(mode_mask, uint, 0644);
			MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");

			static struct usb_device_id ati_remote2_id_table[] = {
			{ USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */
			{ }
			};
			MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);

			static struct {
			int hw_code;
			int key_code;
			} ati_remote2_key_table[] = {
			{ 0x00, KEY_0 },
			{ 0x01, KEY_1 },
			{ 0x02, KEY_2 },
			{ 0x03, KEY_3 },
			{ 0x04, KEY_4 },
			{ 0x05, KEY_5 },
			{ 0x06, KEY_6 },
			{ 0x07, KEY_7 },
			{ 0x08, KEY_8 },
			{ 0x09, KEY_9 },
			{ 0x0c, KEY_POWER },
			{ 0x0d, KEY_MUTE },
			{ 0x10, KEY_VOLUMEUP },
			{ 0x11, KEY_VOLUMEDOWN },
			{ 0x20, KEY_CHANNELUP },
			{ 0x21, KEY_CHANNELDOWN },
			{ 0x28, KEY_FORWARD },
			{ 0x29, KEY_REWIND },
			{ 0x2c, KEY_PLAY },
			{ 0x30, KEY_PAUSE },
			{ 0x31, KEY_STOP },
			{ 0x37, KEY_RECORD },
			{ 0x38, KEY_DVD },
			{ 0x39, KEY_TV },
			{ 0x54, KEY_MENU },
			{ 0x58, KEY_UP },
			{ 0x59, KEY_DOWN },
			{ 0x5a, KEY_LEFT },
			{ 0x5b, KEY_RIGHT },
			{ 0x5c, KEY_OK },
			{ 0x78, KEY_A },
			{ 0x79, KEY_B },
			{ 0x7a, KEY_C },
			{ 0x7b, KEY_D },
			{ 0x7c, KEY_E },
			{ 0x7d, KEY_F },
			{ 0x82, KEY_ENTER },
			{ 0x8e, KEY_VENDOR },
			{ 0x96, KEY_COFFEE },
			{ 0xa9, BTN_LEFT },
			{ 0xaa, BTN_RIGHT },
			{ 0xbe, KEY_QUESTION },
			{ 0xd5, KEY_FRONT },
			{ 0xd0, KEY_EDIT },
			{ 0xf9, KEY_INFO },
			{ (0x00 << 8) \| 0x3f, KEY_PROG1 },
			{ (0x01 << 8) \| 0x3f, KEY_PROG2 },
			{ (0x02 << 8) \| 0x3f, KEY_PROG3 },
			{ (0x03 << 8) \| 0x3f, KEY_PROG4 },
			{ (0x04 << 8) \| 0x3f, KEY_PC },
			{ 0, KEY_RESERVED }
			};

			struct ati_remote2 {
			struct input_dev *idev;
			struct usb_device *udev;

			struct usb_interface *intf[2];
			struct usb_endpoint_descriptor *ep[2];
			struct urb *urb[2];
			void *buf[2];
			dma_addr_t buf_dma[2];

			unsigned long jiffies;
			int mode;

			char name[64];
			char phys[64];
			};

			static int ati_remote2_probe(struct usb_interface interface, const struct usb_device_id id);
			static void ati_remote2_disconnect(struct usb_interface *interface);

			static struct usb_driver ati_remote2_driver = {
			.name = "ati_remote2",
			.probe = ati_remote2_probe,
			.disconnect = ati_remote2_disconnect,
			.id_table = ati_remote2_id_table,
			};

			static int ati_remote2_open(struct input_dev *idev)
			{
			struct ati_remote2 *ar2 = idev->private;
			int r;

			r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
			if (r) {
			dev_err(&ar2->intf[0]->dev,
			"%s: usb_submit_urb() = %d\n", __FUNCTION__, r);
			return r;
			}
			r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
			if (r) {
			usb_kill_urb(ar2->urb[0]);
			dev_err(&ar2->intf[1]->dev,
			"%s: usb_submit_urb() = %d\n", __FUNCTION__, r);
			return r;
			}

			return 0;
			}

			static void ati_remote2_close(struct input_dev *idev)
			{
			struct ati_remote2 *ar2 = idev->private;

			usb_kill_urb(ar2->urb[0]);
			usb_kill_urb(ar2->urb[1]);
			}

			static void ati_remote2_input_mouse(struct ati_remote2 ar2, struct pt_regs regs)
			{
			struct input_dev *idev = ar2->idev;
			u8 *data = ar2->buf[0];

			if (data[0] > 4) {
			dev_err(&ar2->intf[0]->dev,
			"Unknown mode byte (%02x %02x %02x %02x)\n",
			data[3], data[2], data[1], data[0]);
			return;
			}

			if (!((1 << data[0]) & mode_mask))
			return;

			input_regs(idev, regs);
			input_event(idev, EV_REL, REL_X, (s8) data[1]);
			input_event(idev, EV_REL, REL_Y, (s8) data[2]);
			input_sync(idev);
			}

			static int ati_remote2_lookup(unsigned int hw_code)
			{
			int i;

			for (i = 0; ati_remote2_key_table[i].key_code != KEY_RESERVED; i++)
			if (ati_remote2_key_table[i].hw_code == hw_code)
			return i;

			return -1;
			}

			static void ati_remote2_input_key(struct ati_remote2 ar2, struct pt_regs regs)
			{
			struct input_dev *idev = ar2->idev;
			u8 *data = ar2->buf[1];
			int hw_code, index;

			if (data[0] > 4) {
			dev_err(&ar2->intf[1]->dev,
			"Unknown mode byte (%02x %02x %02x %02x)\n",
			data[3], data[2], data[1], data[0]);
			return;
			}

			hw_code = data[2];
			/*
			* Mode keys (AUX1-AUX4, PC) all generate the same code byte.
			* Use the mode byte to figure out which one was pressed.
			*/
			if (hw_code == 0x3f) {
			/*
			* For some incomprehensible reason the mouse pad generates
			* events which look identical to the events from the last
			* pressed mode key. Naturally we don't want to generate key
			* events for the mouse pad so we filter out any subsequent
			* events from the same mode key.
			*/
			if (ar2->mode == data[0])
			return;

			if (data[1] == 0)
			ar2->mode = data[0];

			hw_code \|= data[0] << 8;
			}

			if (!((1 << data[0]) & mode_mask))
			return;

			index = ati_remote2_lookup(hw_code);
			if (index < 0) {
			dev_err(&ar2->intf[1]->dev,
			"Unknown code byte (%02x %02x %02x %02x)\n",
			data[3], data[2], data[1], data[0]);
			return;
			}

			switch (data[1]) {
			case 0: /* release */
			break;
			case 1: /* press */
			ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]);
			break;
			case 2: /* repeat */

			/* No repeat for mouse buttons. */
			if (ati_remote2_key_table[index].key_code == BTN_LEFT \|\|
			ati_remote2_key_table[index].key_code == BTN_RIGHT)
			return;

			if (!time_after_eq(jiffies, ar2->jiffies))
			return;

			ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]);
			break;
			default:
			dev_err(&ar2->intf[1]->dev,
			"Unknown state byte (%02x %02x %02x %02x)\n",
			data[3], data[2], data[1], data[0]);
			return;
			}

			input_regs(idev, regs);
			input_event(idev, EV_KEY, ati_remote2_key_table[index].key_code, data[1]);
			input_sync(idev);
			}

			static void ati_remote2_complete_mouse(struct urb urb, struct pt_regs regs)
			{
			struct ati_remote2 *ar2 = urb->context;
			int r;

			switch (urb->status) {
			case 0:
			ati_remote2_input_mouse(ar2, regs);
			break;
			case -ENOENT:
			case -EILSEQ:
			case -ECONNRESET:
			case -ESHUTDOWN:
			dev_dbg(&ar2->intf[0]->dev,
			"%s(): urb status = %d\n", __FUNCTION__, urb->status);
			return;
			default:
			dev_err(&ar2->intf[0]->dev,
			"%s(): urb status = %d\n", __FUNCTION__, urb->status);
			}

			r = usb_submit_urb(urb, GFP_ATOMIC);
			if (r)
			dev_err(&ar2->intf[0]->dev,
			"%s(): usb_submit_urb() = %d\n", __FUNCTION__, r);
			}

			static void ati_remote2_complete_key(struct urb urb, struct pt_regs regs)
			{
			struct ati_remote2 *ar2 = urb->context;
			int r;

			switch (urb->status) {
			case 0:
			ati_remote2_input_key(ar2, regs);
			break;
			case -ENOENT:
			case -EILSEQ:
			case -ECONNRESET:
			case -ESHUTDOWN:
			dev_dbg(&ar2->intf[1]->dev,
			"%s(): urb status = %d\n", __FUNCTION__, urb->status);
			return;
			default:
			dev_err(&ar2->intf[1]->dev,
			"%s(): urb status = %d\n", __FUNCTION__, urb->status);
			}

			r = usb_submit_urb(urb, GFP_ATOMIC);
			if (r)
			dev_err(&ar2->intf[1]->dev,
			"%s(): usb_submit_urb() = %d\n", __FUNCTION__, r);
			}

			static int ati_remote2_input_init(struct ati_remote2 *ar2)
			{
			struct input_dev *idev;
			int i;

			idev = input_allocate_device();
			if (!idev)
			return -ENOMEM;

			ar2->idev = idev;
			idev->private = ar2;

			idev->evbit[0] = BIT(EV_KEY) \| BIT(EV_REP) \| BIT(EV_REL);
			idev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) \| BIT(BTN_RIGHT);
			idev->relbit[0] = BIT(REL_X) \| BIT(REL_Y);
			for (i = 0; ati_remote2_key_table[i].key_code != KEY_RESERVED; i++)
			set_bit(ati_remote2_key_table[i].key_code, idev->keybit);

			idev->rep[REP_DELAY] = 250;
			idev->rep[REP_PERIOD] = 33;

			idev->open = ati_remote2_open;
			idev->close = ati_remote2_close;

			idev->name = ar2->name;
			idev->phys = ar2->phys;

			usb_to_input_id(ar2->udev, &idev->id);
			idev->cdev.dev = &ar2->udev->dev;

			i = input_register_device(idev);
			if (i)
			input_free_device(idev);

			return i;
			}

			static int ati_remote2_urb_init(struct ati_remote2 *ar2)
			{
			struct usb_device *udev = ar2->udev;
			int i, pipe, maxp;

			for (i = 0; i < 2; i++) {
			ar2->buf[i] = usb_buffer_alloc(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
			if (!ar2->buf[i])
			return -ENOMEM;

			ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL);
			if (!ar2->urb[i])
			return -ENOMEM;

			pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress);
			maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
			maxp = maxp > 4 ? 4 : maxp;

			usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp,
			i ? ati_remote2_complete_key : ati_remote2_complete_mouse,
			ar2, ar2->ep[i]->bInterval);
			ar2->urb[i]->transfer_dma = ar2->buf_dma[i];
			ar2->urb[i]->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
			}

			return 0;
			}

			static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
			{
			int i;

			for (i = 0; i < 2; i++) {
			if (ar2->urb[i])
			usb_free_urb(ar2->urb[i]);

			if (ar2->buf[i])
			usb_buffer_free(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
			}
			}

			static int ati_remote2_probe(struct usb_interface interface, const struct usb_device_id id)
			{
			struct usb_device *udev = interface_to_usbdev(interface);
			struct usb_host_interface *alt = interface->cur_altsetting;
			struct ati_remote2 *ar2;
			int r;

			if (alt->desc.bInterfaceNumber)
			return -ENODEV;

			ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL);
			if (!ar2)
			return -ENOMEM;

			ar2->udev = udev;

			ar2->intf[0] = interface;
			ar2->ep[0] = &alt->endpoint[0].desc;

			ar2->intf[1] = usb_ifnum_to_if(udev, 1);
			r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
			if (r)
			goto fail1;
			alt = ar2->intf[1]->cur_altsetting;
			ar2->ep[1] = &alt->endpoint[0].desc;

			r = ati_remote2_urb_init(ar2);
			if (r)
			goto fail2;

			usb_make_path(udev, ar2->phys, sizeof(ar2->phys));
			strlcat(ar2->phys, "/input0", sizeof(ar2->phys));

			strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));

			r = ati_remote2_input_init(ar2);
			if (r)
			goto fail2;

			usb_set_intfdata(interface, ar2);

			return 0;

			fail2:
			ati_remote2_urb_cleanup(ar2);

			usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
			fail1:
			kfree(ar2);

			return r;
			}

			static void ati_remote2_disconnect(struct usb_interface *interface)
			{
			struct ati_remote2 *ar2;
			struct usb_host_interface *alt = interface->cur_altsetting;

			if (alt->desc.bInterfaceNumber)
			return;

			ar2 = usb_get_intfdata(interface);
			usb_set_intfdata(interface, NULL);

			input_unregister_device(ar2->idev);

			ati_remote2_urb_cleanup(ar2);

			usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);

			kfree(ar2);
			}

			static int __init ati_remote2_init(void)
			{
			int r;

			r = usb_register(&ati_remote2_driver);
			if (r)
			printk(KERN_ERR "ati_remote2: usb_register() = %d\n", r);
			else
			printk(KERN_INFO "ati_remote2: " DRIVER_DESC " " DRIVER_VERSION "\n");

			return r;
			}

			static void __exit ati_remote2_exit(void)
			{
			usb_deregister(&ati_remote2_driver);
			}

			module_init(ati_remote2_init);
			module_exit(ati_remote2_exit);