upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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752 lines
19 KiB
752 lines
19 KiB
/*
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* (C) Copyright 2001
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* Denis Peter, MPL AG Switzerland
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*
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* Part of this source has been derived from the Linux USB
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* project.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#include <common.h>
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#include <devices.h>
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#include <asm/byteorder.h>
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#ifdef CONFIG_USB_KEYBOARD
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#include <usb.h>
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#undef USB_KBD_DEBUG
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/*
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* if overwrite_console returns 1, the stdin, stderr and stdout
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* are switched to the serial port, else the settings in the
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* environment are used
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*/
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#ifdef CFG_CONSOLE_OVERWRITE_ROUTINE
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extern int overwrite_console (void);
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#else
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int overwrite_console (void)
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{
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return (0);
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}
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#endif
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#ifdef USB_KBD_DEBUG
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#define USB_KBD_PRINTF(fmt,args...) printf (fmt ,##args)
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#else
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#define USB_KBD_PRINTF(fmt,args...)
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#endif
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#define REPEAT_RATE 40/4 /* 40msec -> 25cps */
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#define REPEAT_DELAY 10 /* 10 x REAPEAT_RATE = 400msec */
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#define NUM_LOCK 0x53
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#define CAPS_LOCK 0x39
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#define SCROLL_LOCK 0x47
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/* Modifier bits */
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#define LEFT_CNTR 0
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#define LEFT_SHIFT 1
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#define LEFT_ALT 2
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#define LEFT_GUI 3
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#define RIGHT_CNTR 4
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#define RIGHT_SHIFT 5
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#define RIGHT_ALT 6
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#define RIGHT_GUI 7
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#define USB_KBD_BUFFER_LEN 0x20 /* size of the keyboardbuffer */
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static volatile char usb_kbd_buffer[USB_KBD_BUFFER_LEN];
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static volatile int usb_in_pointer = 0;
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static volatile int usb_out_pointer = 0;
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unsigned char new[8];
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unsigned char old[8];
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int repeat_delay;
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#define DEVNAME "usbkbd"
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static unsigned char num_lock = 0;
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static unsigned char caps_lock = 0;
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static unsigned char scroll_lock = 0;
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static unsigned char ctrl = 0;
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static unsigned char leds __attribute__ ((aligned (0x4)));
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static unsigned char usb_kbd_numkey[] = {
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'1', '2', '3', '4', '5', '6', '7', '8', '9', '0','\r',0x1b,'\b','\t',' ', '-',
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'=', '[', ']','\\', '#', ';', '\'', '`', ',', '.', '/'
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};
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static unsigned char usb_kbd_numkey_shifted[] = {
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'!', '@', '#', '$', '%', '^', '&', '*', '(', ')','\r',0x1b,'\b','\t',' ', '_',
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'+', '{', '}', '|', '~', ':', '"', '~', '<', '>', '?'
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};
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/******************************************************************
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* Queue handling
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******************************************************************/
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/* puts character in the queue and sets up the in and out pointer */
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static void usb_kbd_put_queue(char data)
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{
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if((usb_in_pointer+1)==USB_KBD_BUFFER_LEN) {
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if(usb_out_pointer==0) {
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return; /* buffer full */
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} else{
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usb_in_pointer=0;
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}
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} else {
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if((usb_in_pointer+1)==usb_out_pointer)
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return; /* buffer full */
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usb_in_pointer++;
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}
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usb_kbd_buffer[usb_in_pointer]=data;
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return;
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}
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/* test if a character is in the queue */
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static int usb_kbd_testc(void)
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{
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#ifdef CFG_USB_EVENT_POLL
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usb_event_poll();
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#endif
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if(usb_in_pointer==usb_out_pointer)
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return(0); /* no data */
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else
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return(1);
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}
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/* gets the character from the queue */
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static int usb_kbd_getc(void)
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{
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char c;
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while(usb_in_pointer==usb_out_pointer) {
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#ifdef CFG_USB_EVENT_POLL
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usb_event_poll();
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#endif
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}
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if((usb_out_pointer+1)==USB_KBD_BUFFER_LEN)
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usb_out_pointer=0;
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else
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usb_out_pointer++;
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c=usb_kbd_buffer[usb_out_pointer];
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return (int)c;
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}
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/* forward decleration */
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static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum);
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/* search for keyboard and register it if found */
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int drv_usb_kbd_init(void)
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{
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int error,i,index;
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device_t usb_kbd_dev,*old_dev;
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struct usb_device *dev;
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char *stdinname = getenv ("stdin");
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usb_in_pointer=0;
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usb_out_pointer=0;
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/* scan all USB Devices */
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for(i=0;i<USB_MAX_DEVICE;i++) {
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dev=usb_get_dev_index(i); /* get device */
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if(dev->devnum!=-1) {
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if(usb_kbd_probe(dev,0)==1) { /* Ok, we found a keyboard */
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/* check, if it is already registered */
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USB_KBD_PRINTF("USB KBD found set up device.\n");
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for (index=1; index<=ListNumItems(devlist); index++) {
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old_dev = ListGetPtrToItem(devlist, index);
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if(strcmp(old_dev->name,DEVNAME)==0) {
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/* ok, already registered, just return ok */
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USB_KBD_PRINTF("USB KBD is already registered.\n");
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return 1;
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}
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}
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/* register the keyboard */
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USB_KBD_PRINTF("USB KBD register.\n");
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memset (&usb_kbd_dev, 0, sizeof(device_t));
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strcpy(usb_kbd_dev.name, DEVNAME);
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usb_kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
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usb_kbd_dev.putc = NULL;
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usb_kbd_dev.puts = NULL;
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usb_kbd_dev.getc = usb_kbd_getc;
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usb_kbd_dev.tstc = usb_kbd_testc;
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error = device_register (&usb_kbd_dev);
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if(error==0) {
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/* check if this is the standard input device */
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if(strcmp(stdinname,DEVNAME)==0) {
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/* reassign the console */
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if(overwrite_console()) {
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return 1;
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}
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error=console_assign(stdin,DEVNAME);
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if(error==0)
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return 1;
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else
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return error;
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}
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return 1;
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}
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return error;
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}
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}
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}
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/* no USB Keyboard found */
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return -1;
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}
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/* deregistering the keyboard */
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int usb_kbd_deregister(void)
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{
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return device_deregister(DEVNAME);
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}
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/**************************************************************************
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* Low Level drivers
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*/
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/* set the LEDs. Since this is used in the irq routine, the control job
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is issued with a timeout of 0. This means, that the job is queued without
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waiting for job completion */
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static void usb_kbd_setled(struct usb_device *dev)
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{
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struct usb_interface_descriptor *iface;
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iface = &dev->config.if_desc[0];
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leds=0;
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if(scroll_lock!=0)
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leds|=1;
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leds<<=1;
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if(caps_lock!=0)
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leds|=1;
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leds<<=1;
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if(num_lock!=0)
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leds|=1;
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usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
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0x200, iface->bInterfaceNumber,(void *)&leds, 1, 0);
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}
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#define CAPITAL_MASK 0x20
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/* Translate the scancode in ASCII */
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static int usb_kbd_translate(unsigned char scancode,unsigned char modifier,int pressed)
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{
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unsigned char keycode;
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if(pressed==0) {
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/* key released */
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repeat_delay=0;
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return 0;
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}
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if(pressed==2) {
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repeat_delay++;
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if(repeat_delay<REPEAT_DELAY)
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return 0;
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repeat_delay=REPEAT_DELAY;
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}
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keycode=0;
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if((scancode>3) && (scancode<=0x1d)) { /* alpha numeric values */
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keycode=scancode-4 + 0x61;
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if(caps_lock)
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keycode&=~CAPITAL_MASK; /* switch to capital Letters */
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if(((modifier&(1<<LEFT_SHIFT))!=0)||((modifier&(1<<RIGHT_SHIFT))!=0)) {
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if(keycode & CAPITAL_MASK)
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keycode&=~CAPITAL_MASK; /* switch to capital Letters */
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else
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keycode|=CAPITAL_MASK; /* switch to non capital Letters */
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}
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}
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if((scancode>0x1d) && (scancode<0x3A)) {
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if(((modifier&(1<<LEFT_SHIFT))!=0)||((modifier&(1<<RIGHT_SHIFT))!=0)) /* shifted */
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keycode=usb_kbd_numkey_shifted[scancode-0x1e];
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else /* non shifted */
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keycode=usb_kbd_numkey[scancode-0x1e];
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}
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if (ctrl)
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keycode = scancode - 0x3;
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if(pressed==1) {
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if(scancode==NUM_LOCK) {
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num_lock=~num_lock;
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return 1;
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}
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if(scancode==CAPS_LOCK) {
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caps_lock=~caps_lock;
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return 1;
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}
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if(scancode==SCROLL_LOCK) {
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scroll_lock=~scroll_lock;
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return 1;
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}
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}
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if(keycode!=0) {
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USB_KBD_PRINTF("%c",keycode);
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usb_kbd_put_queue(keycode);
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}
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return 0;
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}
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/* Interrupt service routine */
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static int usb_kbd_irq(struct usb_device *dev)
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{
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int i,res;
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if((dev->irq_status!=0)||(dev->irq_act_len!=8))
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{
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USB_KBD_PRINTF("usb_keyboard Error %lX, len %d\n",dev->irq_status,dev->irq_act_len);
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return 1;
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}
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res=0;
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switch (new[0]) {
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case 0x0: /* No combo key pressed */
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ctrl = 0;
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break;
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case 0x01: /* Left Ctrl pressed */
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case 0x10: /* Right Ctrl pressed */
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ctrl = 1;
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break;
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}
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for (i = 2; i < 8; i++) {
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if (old[i] > 3 && memscan(&new[2], old[i], 6) == &new[8]) {
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res|=usb_kbd_translate(old[i],new[0],0);
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}
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if (new[i] > 3 && memscan(&old[2], new[i], 6) == &old[8]) {
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res|=usb_kbd_translate(new[i],new[0],1);
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}
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}
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if((new[2]>3) && (old[2]==new[2])) /* still pressed */
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res|=usb_kbd_translate(new[2],new[0],2);
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if(res==1)
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usb_kbd_setled(dev);
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memcpy(&old[0],&new[0], 8);
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return 1; /* install IRQ Handler again */
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}
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/* probes the USB device dev for keyboard type */
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static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum)
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{
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struct usb_interface_descriptor *iface;
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struct usb_endpoint_descriptor *ep;
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int pipe,maxp;
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if (dev->descriptor.bNumConfigurations != 1) return 0;
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iface = &dev->config.if_desc[ifnum];
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if (iface->bInterfaceClass != 3) return 0;
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if (iface->bInterfaceSubClass != 1) return 0;
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if (iface->bInterfaceProtocol != 1) return 0;
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if (iface->bNumEndpoints != 1) return 0;
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ep = &iface->ep_desc[0];
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if (!(ep->bEndpointAddress & 0x80)) return 0;
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if ((ep->bmAttributes & 3) != 3) return 0;
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USB_KBD_PRINTF("USB KBD found set protocol...\n");
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/* ok, we found a USB Keyboard, install it */
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/* usb_kbd_get_hid_desc(dev); */
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usb_set_protocol(dev, iface->bInterfaceNumber, 0);
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USB_KBD_PRINTF("USB KBD found set idle...\n");
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usb_set_idle(dev, iface->bInterfaceNumber, REPEAT_RATE, 0);
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memset(&new[0], 0, 8);
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memset(&old[0], 0, 8);
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repeat_delay=0;
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pipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
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maxp = usb_maxpacket(dev, pipe);
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dev->irq_handle=usb_kbd_irq;
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USB_KBD_PRINTF("USB KBD enable interrupt pipe...\n");
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usb_submit_int_msg(dev,pipe,&new[0], maxp > 8 ? 8 : maxp,ep->bInterval);
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return 1;
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}
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#if 0
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struct usb_hid_descriptor {
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unsigned char bLength;
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unsigned char bDescriptorType; /* 0x21 for HID */
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unsigned short bcdHID; /* release number */
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unsigned char bCountryCode;
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unsigned char bNumDescriptors;
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unsigned char bReportDescriptorType;
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unsigned short wDescriptorLength;
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} __attribute__ ((packed));
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/*
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* We parse each description item into this structure. Short items data
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* values are expanded to 32-bit signed int, long items contain a pointer
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* into the data area.
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*/
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struct hid_item {
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unsigned char format;
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unsigned char size;
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unsigned char type;
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unsigned char tag;
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union {
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unsigned char u8;
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char s8;
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unsigned short u16;
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short s16;
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unsigned long u32;
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long s32;
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unsigned char *longdata;
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} data;
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};
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/*
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* HID report item format
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*/
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#define HID_ITEM_FORMAT_SHORT 0
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#define HID_ITEM_FORMAT_LONG 1
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/*
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* Special tag indicating long items
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*/
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#define HID_ITEM_TAG_LONG 15
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static struct usb_hid_descriptor usb_kbd_hid_desc;
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void usb_kbd_display_hid(struct usb_hid_descriptor *hid)
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{
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printf("USB_HID_DESC:\n");
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printf(" bLenght 0x%x\n",hid->bLength);
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printf(" bcdHID 0x%x\n",hid->bcdHID);
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printf(" bCountryCode %d\n",hid->bCountryCode);
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printf(" bNumDescriptors 0x%x\n",hid->bNumDescriptors);
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printf(" bReportDescriptorType 0x%x\n",hid->bReportDescriptorType);
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printf(" wDescriptorLength 0x%x\n",hid->wDescriptorLength);
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}
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/*
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* Fetch a report description item from the data stream. We support long
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* items, though they are not used yet.
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*/
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static int fetch_item(unsigned char *start,unsigned char *end, struct hid_item *item)
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{
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if((end - start) > 0) {
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unsigned char b = *start++;
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item->type = (b >> 2) & 3;
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item->tag = (b >> 4) & 15;
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if (item->tag == HID_ITEM_TAG_LONG) {
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item->format = HID_ITEM_FORMAT_LONG;
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if ((end - start) >= 2) {
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item->size = *start++;
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item->tag = *start++;
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if ((end - start) >= item->size) {
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item->data.longdata = start;
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start += item->size;
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return item->size;
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}
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}
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} else {
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item->format = HID_ITEM_FORMAT_SHORT;
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item->size = b & 3;
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switch (item->size) {
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case 0:
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return item->size;
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case 1:
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if ((end - start) >= 1) {
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item->data.u8 = *start++;
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return item->size;
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}
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break;
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case 2:
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if ((end - start) >= 2) {
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item->data.u16 = le16_to_cpu((unsigned short *)start);
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start+=2;
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return item->size;
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}
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case 3:
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item->size++;
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if ((end - start) >= 4) {
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item->data.u32 = le32_to_cpu((unsigned long *)start);
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start+=4;
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return item->size;
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}
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}
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}
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}
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return -1;
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}
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/*
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* HID report descriptor item type (prefix bit 2,3)
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*/
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#define HID_ITEM_TYPE_MAIN 0
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#define HID_ITEM_TYPE_GLOBAL 1
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#define HID_ITEM_TYPE_LOCAL 2
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#define HID_ITEM_TYPE_RESERVED 3
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/*
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* HID report descriptor main item tags
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*/
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#define HID_MAIN_ITEM_TAG_INPUT 8
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#define HID_MAIN_ITEM_TAG_OUTPUT 9
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#define HID_MAIN_ITEM_TAG_FEATURE 11
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#define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10
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#define HID_MAIN_ITEM_TAG_END_COLLECTION 12
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/*
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* HID report descriptor main item contents
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*/
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#define HID_MAIN_ITEM_CONSTANT 0x001
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#define HID_MAIN_ITEM_VARIABLE 0x002
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#define HID_MAIN_ITEM_RELATIVE 0x004
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#define HID_MAIN_ITEM_WRAP 0x008
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#define HID_MAIN_ITEM_NONLINEAR 0x010
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|
#define HID_MAIN_ITEM_NO_PREFERRED 0x020
|
|
#define HID_MAIN_ITEM_NULL_STATE 0x040
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#define HID_MAIN_ITEM_VOLATILE 0x080
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#define HID_MAIN_ITEM_BUFFERED_BYTE 0x100
|
|
|
|
/*
|
|
* HID report descriptor collection item types
|
|
*/
|
|
|
|
#define HID_COLLECTION_PHYSICAL 0
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|
#define HID_COLLECTION_APPLICATION 1
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|
#define HID_COLLECTION_LOGICAL 2
|
|
/*
|
|
* HID report descriptor global item tags
|
|
*/
|
|
|
|
#define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0
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|
#define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1
|
|
#define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2
|
|
#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3
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|
#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4
|
|
#define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5
|
|
#define HID_GLOBAL_ITEM_TAG_UNIT 6
|
|
#define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7
|
|
#define HID_GLOBAL_ITEM_TAG_REPORT_ID 8
|
|
#define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9
|
|
#define HID_GLOBAL_ITEM_TAG_PUSH 10
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|
#define HID_GLOBAL_ITEM_TAG_POP 11
|
|
|
|
/*
|
|
* HID report descriptor local item tags
|
|
*/
|
|
|
|
#define HID_LOCAL_ITEM_TAG_USAGE 0
|
|
#define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1
|
|
#define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2
|
|
#define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3
|
|
#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4
|
|
#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5
|
|
#define HID_LOCAL_ITEM_TAG_STRING_INDEX 7
|
|
#define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8
|
|
#define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9
|
|
#define HID_LOCAL_ITEM_TAG_DELIMITER 10
|
|
|
|
|
|
static void usb_kbd_show_item(struct hid_item *item)
|
|
{
|
|
switch(item->type) {
|
|
case HID_ITEM_TYPE_MAIN:
|
|
switch(item->tag) {
|
|
case HID_MAIN_ITEM_TAG_INPUT:
|
|
printf("Main Input");
|
|
break;
|
|
case HID_MAIN_ITEM_TAG_OUTPUT:
|
|
printf("Main Output");
|
|
break;
|
|
case HID_MAIN_ITEM_TAG_FEATURE:
|
|
printf("Main Feature");
|
|
break;
|
|
case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
|
|
printf("Main Begin Collection");
|
|
break;
|
|
case HID_MAIN_ITEM_TAG_END_COLLECTION:
|
|
printf("Main End Collection");
|
|
break;
|
|
default:
|
|
printf("Main reserved %d",item->tag);
|
|
break;
|
|
}
|
|
break;
|
|
case HID_ITEM_TYPE_GLOBAL:
|
|
switch(item->tag) {
|
|
case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
|
|
printf("- Global Usage Page");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
|
|
printf("- Global Logical Minimum");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
|
|
printf("- Global Logical Maximum");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
|
|
printf("- Global physical Minimum");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
|
|
printf("- Global physical Maximum");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
|
|
printf("- Global Unit Exponent");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_UNIT:
|
|
printf("- Global Unit");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
|
|
printf("- Global Report Size");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_REPORT_ID:
|
|
printf("- Global Report ID");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
|
|
printf("- Global Report Count");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_PUSH:
|
|
printf("- Global Push");
|
|
break;
|
|
case HID_GLOBAL_ITEM_TAG_POP:
|
|
printf("- Global Pop");
|
|
break;
|
|
default:
|
|
printf("- Global reserved %d",item->tag);
|
|
break;
|
|
}
|
|
break;
|
|
case HID_ITEM_TYPE_LOCAL:
|
|
switch(item->tag) {
|
|
case HID_LOCAL_ITEM_TAG_USAGE:
|
|
printf("-- Local Usage");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
|
|
printf("-- Local Usage Minimum");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
|
|
printf("-- Local Usage Maximum");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX:
|
|
printf("-- Local Designator Index");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM:
|
|
printf("-- Local Designator Minimum");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM:
|
|
printf("-- Local Designator Maximum");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_STRING_INDEX:
|
|
printf("-- Local String Index");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_STRING_MINIMUM:
|
|
printf("-- Local String Minimum");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_STRING_MAXIMUM:
|
|
printf("-- Local String Maximum");
|
|
break;
|
|
case HID_LOCAL_ITEM_TAG_DELIMITER:
|
|
printf("-- Local Delimiter");
|
|
break;
|
|
default:
|
|
printf("-- Local reserved %d",item->tag);
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
printf("--- reserved %d",item->type);
|
|
break;
|
|
}
|
|
switch(item->size) {
|
|
case 1:
|
|
printf(" %d",item->data.u8);
|
|
break;
|
|
case 2:
|
|
printf(" %d",item->data.u16);
|
|
break;
|
|
case 4:
|
|
printf(" %ld",item->data.u32);
|
|
break;
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
static int usb_kbd_get_hid_desc(struct usb_device *dev)
|
|
{
|
|
unsigned char buffer[256];
|
|
struct usb_descriptor_header *head;
|
|
struct usb_config_descriptor *config;
|
|
int index,len,i;
|
|
unsigned char *start, *end;
|
|
struct hid_item item;
|
|
|
|
if(usb_get_configuration_no(dev,&buffer[0],0)==-1)
|
|
return -1;
|
|
head =(struct usb_descriptor_header *)&buffer[0];
|
|
if(head->bDescriptorType!=USB_DT_CONFIG) {
|
|
printf(" ERROR: NOT USB_CONFIG_DESC %x\n",head->bDescriptorType);
|
|
return -1;
|
|
}
|
|
index=head->bLength;
|
|
config=(struct usb_config_descriptor *)&buffer[0];
|
|
len=le16_to_cpu(config->wTotalLength);
|
|
/* Ok the first entry must be a configuration entry, now process the others */
|
|
head=(struct usb_descriptor_header *)&buffer[index];
|
|
while(index+1 < len) {
|
|
if(head->bDescriptorType==USB_DT_HID) {
|
|
printf("HID desc found\n");
|
|
memcpy(&usb_kbd_hid_desc,&buffer[index],buffer[index]);
|
|
le16_to_cpus(&usb_kbd_hid_desc.bcdHID);
|
|
le16_to_cpus(&usb_kbd_hid_desc.wDescriptorLength);
|
|
usb_kbd_display_hid(&usb_kbd_hid_desc);
|
|
len=0;
|
|
break;
|
|
}
|
|
index+=head->bLength;
|
|
head=(struct usb_descriptor_header *)&buffer[index];
|
|
}
|
|
if(len>0)
|
|
return -1;
|
|
len=usb_kbd_hid_desc.wDescriptorLength;
|
|
if((index = usb_get_class_descriptor(dev, 0, USB_DT_REPORT, 0, &buffer[0], len)) < 0) {
|
|
printf("reading report descriptor failed\n");
|
|
return -1;
|
|
}
|
|
printf(" report descriptor (size %u, read %d)\n", len, index);
|
|
start = &buffer[0];
|
|
end = &buffer[len];
|
|
i=0;
|
|
do {
|
|
index=fetch_item(start,end,&item);
|
|
i+=index;
|
|
i++;
|
|
if(index>=0)
|
|
usb_kbd_show_item(&item);
|
|
|
|
start+=index;
|
|
start++;
|
|
} while(index>=0);
|
|
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
#endif /* CONFIG_USB_KEYBOARD */
|
|
|