USB HID: move usbhid code from drivers/usb/input to drivers/hid/usbhid

Separate usbhid code into dedicated drivers/hid/usbhid directory as
discussed previously with Greg, so that it eases maintaineance process.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 362 insertions, 0 deletions

diff --git a/drivers/hid/usbhid/usbkbd.c b/drivers/hid/usbhid/usbkbd.c
new file mode 100644
index 000000000000..3749f4a235f9
--- /dev/null
+++ b/drivers/hid/usbhid/usbkbd.c
@@ -0,0 +1,362 @@
+/*
+ * $Id: usbkbd.c,v 1.27 2001/12/27 10:37:41 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ *  USB HIDBP Keyboard support
+ */
+
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb/input.h>
+#include <linux/hid.h>
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION ""
+#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
+#define DRIVER_DESC "USB HID Boot Protocol keyboard driver"
+#define DRIVER_LICENSE "GPL"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+static unsigned char usb_kbd_keycode[256] = {
+	  0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
+	 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
+	  4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
+	 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
+	 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
+	105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
+	 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
+	191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
+	115,114,  0,  0,  0,121,  0, 89, 93,124, 92, 94, 95,  0,  0,  0,
+	122,123, 90, 91, 85,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+	 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
+	150,158,159,128,136,177,178,176,142,152,173,140
+};
+
+struct usb_kbd {
+	struct input_dev *dev;
+	struct usb_device *usbdev;
+	unsigned char old[8];
+	struct urb *irq, *led;
+	unsigned char newleds;
+	char name[128];
+	char phys[64];
+
+	unsigned char *new;
+	struct usb_ctrlrequest *cr;
+	unsigned char *leds;
+	dma_addr_t cr_dma;
+	dma_addr_t new_dma;
+	dma_addr_t leds_dma;
+};
+
+static void usb_kbd_irq(struct urb *urb)
+{
+	struct usb_kbd *kbd = urb->context;
+	int i;
+
+	switch (urb->status) {
+	case 0:			/* success */
+		break;
+	case -ECONNRESET:	/* unlink */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	/* -EPIPE:  should clear the halt */
+	default:		/* error */
+		goto resubmit;
+	}
+
+	for (i = 0; i < 8; i++)
+		input_report_key(kbd->dev, usb_kbd_keycode[i + 224], (kbd->new[0] >> i) & 1);
+
+	for (i = 2; i < 8; i++) {
+
+		if (kbd->old[i] > 3 && memscan(kbd->new + 2, kbd->old[i], 6) == kbd->new + 8) {
+			if (usb_kbd_keycode[kbd->old[i]])
+				input_report_key(kbd->dev, usb_kbd_keycode[kbd->old[i]], 0);
+			else
+				info("Unknown key (scancode %#x) released.", kbd->old[i]);
+		}
+
+		if (kbd->new[i] > 3 && memscan(kbd->old + 2, kbd->new[i], 6) == kbd->old + 8) {
+			if (usb_kbd_keycode[kbd->new[i]])
+				input_report_key(kbd->dev, usb_kbd_keycode[kbd->new[i]], 1);
+			else
+				info("Unknown key (scancode %#x) pressed.", kbd->new[i]);
+		}
+	}
+
+	input_sync(kbd->dev);
+
+	memcpy(kbd->old, kbd->new, 8);
+
+resubmit:
+	i = usb_submit_urb (urb, GFP_ATOMIC);
+	if (i)
+		err ("can't resubmit intr, %s-%s/input0, status %d",
+				kbd->usbdev->bus->bus_name,
+				kbd->usbdev->devpath, i);
+}
+
+static int usb_kbd_event(struct input_dev *dev, unsigned int type,
+			 unsigned int code, int value)
+{
+	struct usb_kbd *kbd = dev->private;
+
+	if (type != EV_LED)
+		return -1;
+
+
+	kbd->newleds = (!!test_bit(LED_KANA,    dev->led) << 3) | (!!test_bit(LED_COMPOSE, dev->led) << 3) |
+		       (!!test_bit(LED_SCROLLL, dev->led) << 2) | (!!test_bit(LED_CAPSL,   dev->led) << 1) |
+		       (!!test_bit(LED_NUML,    dev->led));
+
+	if (kbd->led->status == -EINPROGRESS)
+		return 0;
+
+	if (*(kbd->leds) == kbd->newleds)
+		return 0;
+
+	*(kbd->leds) = kbd->newleds;
+	kbd->led->dev = kbd->usbdev;
+	if (usb_submit_urb(kbd->led, GFP_ATOMIC))
+		err("usb_submit_urb(leds) failed");
+
+	return 0;
+}
+
+static void usb_kbd_led(struct urb *urb)
+{
+	struct usb_kbd *kbd = urb->context;
+
+	if (urb->status)
+		warn("led urb status %d received", urb->status);
+
+	if (*(kbd->leds) == kbd->newleds)
+		return;
+
+	*(kbd->leds) = kbd->newleds;
+	kbd->led->dev = kbd->usbdev;
+	if (usb_submit_urb(kbd->led, GFP_ATOMIC))
+		err("usb_submit_urb(leds) failed");
+}
+
+static int usb_kbd_open(struct input_dev *dev)
+{
+	struct usb_kbd *kbd = dev->private;
+
+	kbd->irq->dev = kbd->usbdev;
+	if (usb_submit_urb(kbd->irq, GFP_KERNEL))
+		return -EIO;
+
+	return 0;
+}
+
+static void usb_kbd_close(struct input_dev *dev)
+{
+	struct usb_kbd *kbd = dev->private;
+
+	usb_kill_urb(kbd->irq);
+}
+
+static int usb_kbd_alloc_mem(struct usb_device *dev, struct usb_kbd *kbd)
+{
+	if (!(kbd->irq = usb_alloc_urb(0, GFP_KERNEL)))
+		return -1;
+	if (!(kbd->led = usb_alloc_urb(0, GFP_KERNEL)))
+		return -1;
+	if (!(kbd->new = usb_buffer_alloc(dev, 8, GFP_ATOMIC, &kbd->new_dma)))
+		return -1;
+	if (!(kbd->cr = usb_buffer_alloc(dev, sizeof(struct usb_ctrlrequest), GFP_ATOMIC, &kbd->cr_dma)))
+		return -1;
+	if (!(kbd->leds = usb_buffer_alloc(dev, 1, GFP_ATOMIC, &kbd->leds_dma)))
+		return -1;
+
+	return 0;
+}
+
+static void usb_kbd_free_mem(struct usb_device *dev, struct usb_kbd *kbd)
+{
+	usb_free_urb(kbd->irq);
+	usb_free_urb(kbd->led);
+	if (kbd->new)
+		usb_buffer_free(dev, 8, kbd->new, kbd->new_dma);
+	if (kbd->cr)
+		usb_buffer_free(dev, sizeof(struct usb_ctrlrequest), kbd->cr, kbd->cr_dma);
+	if (kbd->leds)
+		usb_buffer_free(dev, 1, kbd->leds, kbd->leds_dma);
+}
+
+static int usb_kbd_probe(struct usb_interface *iface,
+			 const struct usb_device_id *id)
+{
+	struct usb_device *dev = interface_to_usbdev(iface);
+	struct usb_host_interface *interface;
+	struct usb_endpoint_descriptor *endpoint;
+	struct usb_kbd *kbd;
+	struct input_dev *input_dev;
+	int i, pipe, maxp;
+
+	interface = iface->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints != 1)
+		return -ENODEV;
+
+	endpoint = &interface->endpoint[0].desc;
+	if (!usb_endpoint_is_int_in(endpoint))
+		return -ENODEV;
+
+	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
+	maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
+
+	kbd = kzalloc(sizeof(struct usb_kbd), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!kbd || !input_dev)
+		goto fail1;
+
+	if (usb_kbd_alloc_mem(dev, kbd))
+		goto fail2;
+
+	kbd->usbdev = dev;
+	kbd->dev = input_dev;
+
+	if (dev->manufacturer)
+		strlcpy(kbd->name, dev->manufacturer, sizeof(kbd->name));
+
+	if (dev->product) {
+		if (dev->manufacturer)
+			strlcat(kbd->name, " ", sizeof(kbd->name));
+		strlcat(kbd->name, dev->product, sizeof(kbd->name));
+	}
+
+	if (!strlen(kbd->name))
+		snprintf(kbd->name, sizeof(kbd->name),
+			 "USB HIDBP Keyboard %04x:%04x",
+			 le16_to_cpu(dev->descriptor.idVendor),
+			 le16_to_cpu(dev->descriptor.idProduct));
+
+	usb_make_path(dev, kbd->phys, sizeof(kbd->phys));
+	strlcpy(kbd->phys, "/input0", sizeof(kbd->phys));
+
+	input_dev->name = kbd->name;
+	input_dev->phys = kbd->phys;
+	usb_to_input_id(dev, &input_dev->id);
+	input_dev->cdev.dev = &iface->dev;
+	input_dev->private = kbd;
+
+	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
+	input_dev->ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL) | BIT(LED_COMPOSE) | BIT(LED_KANA);
+
+	for (i = 0; i < 255; i++)
+		set_bit(usb_kbd_keycode[i], input_dev->keybit);
+	clear_bit(0, input_dev->keybit);
+
+	input_dev->event = usb_kbd_event;
+	input_dev->open = usb_kbd_open;
+	input_dev->close = usb_kbd_close;
+
+	usb_fill_int_urb(kbd->irq, dev, pipe,
+			 kbd->new, (maxp > 8 ? 8 : maxp),
+			 usb_kbd_irq, kbd, endpoint->bInterval);
+	kbd->irq->transfer_dma = kbd->new_dma;
+	kbd->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	kbd->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE;
+	kbd->cr->bRequest = 0x09;
+	kbd->cr->wValue = cpu_to_le16(0x200);
+	kbd->cr->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
+	kbd->cr->wLength = cpu_to_le16(1);
+
+	usb_fill_control_urb(kbd->led, dev, usb_sndctrlpipe(dev, 0),
+			     (void *) kbd->cr, kbd->leds, 1,
+			     usb_kbd_led, kbd);
+	kbd->led->setup_dma = kbd->cr_dma;
+	kbd->led->transfer_dma = kbd->leds_dma;
+	kbd->led->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
+
+	input_register_device(kbd->dev);
+
+	usb_set_intfdata(iface, kbd);
+	return 0;
+
+fail2:	usb_kbd_free_mem(dev, kbd);
+fail1:	input_free_device(input_dev);
+	kfree(kbd);
+	return -ENOMEM;
+}
+
+static void usb_kbd_disconnect(struct usb_interface *intf)
+{
+	struct usb_kbd *kbd = usb_get_intfdata (intf);
+
+	usb_set_intfdata(intf, NULL);
+	if (kbd) {
+		usb_kill_urb(kbd->irq);
+		input_unregister_device(kbd->dev);
+		usb_kbd_free_mem(interface_to_usbdev(intf), kbd);
+		kfree(kbd);
+	}
+}
+
+static struct usb_device_id usb_kbd_id_table [] = {
+	{ USB_INTERFACE_INFO(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT,
+		USB_INTERFACE_PROTOCOL_KEYBOARD) },
+	{ }						/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, usb_kbd_id_table);
+
+static struct usb_driver usb_kbd_driver = {
+	.name =		"usbkbd",
+	.probe =	usb_kbd_probe,
+	.disconnect =	usb_kbd_disconnect,
+	.id_table =	usb_kbd_id_table,
+};
+
+static int __init usb_kbd_init(void)
+{
+	int result = usb_register(&usb_kbd_driver);
+	if (result == 0)
+		info(DRIVER_VERSION ":" DRIVER_DESC);
+	return result;
+}
+
+static void __exit usb_kbd_exit(void)
+{
+	usb_deregister(&usb_kbd_driver);
+}
+
+module_init(usb_kbd_init);
+module_exit(usb_kbd_exit);