freebsd-skq/sys/dev/usb/template/usb_template_kbd.c
Hans Petter Selasky b51875c9f6 Use string literals in string descriptors for marginally
better readability.

Submitted by:	Christoph Mallon
2013-01-30 16:05:54 +00:00

221 lines
6.4 KiB
C

/* $FreeBSD$ */
/*-
* Copyright (c) 2010 Hans Petter Selasky. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* This file contains the USB template for an USB Keyboard Device.
*/
#ifdef USB_GLOBAL_INCLUDE_FILE
#include USB_GLOBAL_INCLUDE_FILE
#else
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usb_core.h>
#include <dev/usb/usb_cdc.h>
#include <dev/usb/template/usb_template.h>
#endif /* USB_GLOBAL_INCLUDE_FILE */
enum {
INDEX_LANG,
INDEX_KEYBOARD,
INDEX_PRODUCT,
INDEX_MAX,
};
#define STRING_PRODUCT \
"K\0e\0y\0b\0o\0a\0r\0d\0 \0T\0e\0s\0t\0 \0D\0e\0v\0i\0c\0e"
#define STRING_KEYBOARD \
"K\0e\0y\0b\0o\0a\0r\0d\0 \0i\0n\0t\0e\0r\0f\0a\0c\0e"
/* make the real string descriptors */
USB_MAKE_STRING_DESC(STRING_KEYBOARD, string_keyboard);
USB_MAKE_STRING_DESC(STRING_PRODUCT, string_product);
/* prototypes */
static const struct usb_temp_packet_size keyboard_intr_mps = {
.mps[USB_SPEED_LOW] = 16,
.mps[USB_SPEED_FULL] = 16,
.mps[USB_SPEED_HIGH] = 16,
};
static const struct usb_temp_interval keyboard_intr_interval = {
.bInterval[USB_SPEED_LOW] = 2, /* 2 ms */
.bInterval[USB_SPEED_FULL] = 2, /* 2 ms */
.bInterval[USB_SPEED_HIGH] = 5, /* 2 ms */
};
/* The following HID descriptor was dumped from a HP keyboard. */
static uint8_t keyboard_hid_descriptor[] = {
0x05, 0x01, 0x09, 0x06, 0xa1, 0x01, 0x05, 0x07,
0x19, 0xe0, 0x29, 0xe7, 0x15, 0x00, 0x25, 0x01,
0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01,
0x75, 0x08, 0x81, 0x01, 0x95, 0x03, 0x75, 0x01,
0x05, 0x08, 0x19, 0x01, 0x29, 0x03, 0x91, 0x02,
0x95, 0x05, 0x75, 0x01, 0x91, 0x01, 0x95, 0x06,
0x75, 0x08, 0x15, 0x00, 0x26, 0xff, 0x00, 0x05,
0x07, 0x19, 0x00, 0x2a, 0xff, 0x00, 0x81, 0x00,
0xc0
};
static const struct usb_temp_endpoint_desc keyboard_ep_0 = {
.ppRawDesc = NULL, /* no raw descriptors */
.pPacketSize = &keyboard_intr_mps,
.pIntervals = &keyboard_intr_interval,
.bEndpointAddress = UE_DIR_IN,
.bmAttributes = UE_INTERRUPT,
};
static const struct usb_temp_endpoint_desc *keyboard_endpoints[] = {
&keyboard_ep_0,
NULL,
};
static const uint8_t keyboard_raw_desc[] = {
0x09, 0x21, 0x10, 0x01, 0x00, 0x01, 0x22, sizeof(keyboard_hid_descriptor),
0x00
};
static const void *keyboard_iface_0_desc[] = {
keyboard_raw_desc,
NULL,
};
static const struct usb_temp_interface_desc keyboard_iface_0 = {
.ppRawDesc = keyboard_iface_0_desc,
.ppEndpoints = keyboard_endpoints,
.bInterfaceClass = 3,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 1,
.iInterface = INDEX_KEYBOARD,
};
static const struct usb_temp_interface_desc *keyboard_interfaces[] = {
&keyboard_iface_0,
NULL,
};
static const struct usb_temp_config_desc keyboard_config_desc = {
.ppIfaceDesc = keyboard_interfaces,
.bmAttributes = UC_BUS_POWERED,
.bMaxPower = 25, /* 50 mA */
.iConfiguration = INDEX_PRODUCT,
};
static const struct usb_temp_config_desc *keyboard_configs[] = {
&keyboard_config_desc,
NULL,
};
static usb_temp_get_string_desc_t keyboard_get_string_desc;
static usb_temp_get_vendor_desc_t keyboard_get_vendor_desc;
const struct usb_temp_device_desc usb_template_kbd = {
.getStringDesc = &keyboard_get_string_desc,
.getVendorDesc = &keyboard_get_vendor_desc,
.ppConfigDesc = keyboard_configs,
.idVendor = USB_TEMPLATE_VENDOR,
.idProduct = 0x00CB,
.bcdDevice = 0x0100,
.bDeviceClass = UDCLASS_COMM,
.bDeviceSubClass = 0,
.bDeviceProtocol = 0,
.iManufacturer = 0,
.iProduct = INDEX_PRODUCT,
.iSerialNumber = 0,
};
/*------------------------------------------------------------------------*
* keyboard_get_vendor_desc
*
* Return values:
* NULL: Failure. No such vendor descriptor.
* Else: Success. Pointer to vendor descriptor is returned.
*------------------------------------------------------------------------*/
static const void *
keyboard_get_vendor_desc(const struct usb_device_request *req, uint16_t *plen)
{
if ((req->bmRequestType == 0x81) && (req->bRequest == 0x06) &&
(req->wValue[0] == 0x00) && (req->wValue[1] == 0x22) &&
(req->wIndex[1] == 0) && (req->wIndex[0] == 0)) {
*plen = sizeof(keyboard_hid_descriptor);
return (keyboard_hid_descriptor);
}
return (NULL);
}
/*------------------------------------------------------------------------*
* keyboard_get_string_desc
*
* Return values:
* NULL: Failure. No such string.
* Else: Success. Pointer to string descriptor is returned.
*------------------------------------------------------------------------*/
static const void *
keyboard_get_string_desc(uint16_t lang_id, uint8_t string_index)
{
static const void *ptr[INDEX_MAX] = {
[INDEX_LANG] = &usb_string_lang_en,
[INDEX_KEYBOARD] = &string_keyboard,
[INDEX_PRODUCT] = &string_product,
};
if (string_index == 0) {
return (&usb_string_lang_en);
}
if (lang_id != 0x0409) {
return (NULL);
}
if (string_index < INDEX_MAX) {
return (ptr[string_index]);
}
return (NULL);
}