mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
![Wolfgang Denk](/assets/img/avatar_default.png)
During the rebase of commit 00b7d6e
"USB: Squash checkpatch warnings
in usb_kbd.c" I missed a brace, resulting in a number of build errors.
Fix these.
Signed-off-by: Wolfgang Denk <wd@denx.de>
788 lines
19 KiB
C
788 lines
19 KiB
C
/*
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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 <stdio_dev.h>
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#include <asm/byteorder.h>
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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 CONFIG_SYS_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 REPEAT_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 char usb_kbd_buffer[USB_KBD_BUFFER_LEN];
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static int usb_in_pointer;
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static int usb_out_pointer;
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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;
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static unsigned char caps_lock;
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static unsigned char scroll_lock;
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static unsigned char ctrl;
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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',
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'\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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'!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
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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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} 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 CONFIG_SYS_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 CONFIG_SYS_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;
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struct stdio_dev 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 == NULL)
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return -1;
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if (dev->devnum != -1) {
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/* Ok, we found a keyboard */
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if (usb_kbd_probe(dev, 0) == 1) {
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/* check, if it is already registered */
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USB_KBD_PRINTF("USB KBD found set up "
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"device.\n");
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old_dev = stdio_get_by_name(DEVNAME);
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if (old_dev) {
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/* already registered, just return ok */
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USB_KBD_PRINTF("USB KBD is already "
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"registered.\n");
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return 1;
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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,
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sizeof(struct stdio_dev));
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strcpy(usb_kbd_dev.name, DEVNAME);
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usb_kbd_dev.flags = DEV_FLAGS_INPUT |
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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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usb_kbd_dev.priv = (void *)dev;
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error = stdio_register(&usb_kbd_dev);
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if (error == 0) {
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/*
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* check if this is the standard
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* input device
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*/
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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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error = console_assign(stdin,
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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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#ifdef CONFIG_SYS_STDIO_DEREGISTER
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return stdio_deregister(DEVNAME);
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#else
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return 1;
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#endif
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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 *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->desc.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,
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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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/* switch to capital Letters */
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keycode &= ~CAPITAL_MASK;
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if (((modifier&(1 << LEFT_SHIFT)) != 0) ||
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((modifier&(1 << RIGHT_SHIFT)) != 0)) {
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if (keycode & CAPITAL_MASK)
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/* switch to capital Letters */
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keycode &= ~CAPITAL_MASK;
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else
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/* switch to non capital Letters */
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keycode |= CAPITAL_MASK;
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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) ||
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((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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USB_KBD_PRINTF("usb_keyboard Error %lX, len %d\n",
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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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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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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 *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)
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return 0;
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iface = &dev->config.if_desc[ifnum];
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if (iface->desc.bInterfaceClass != 3)
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return 0;
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if (iface->desc.bInterfaceSubClass != 1)
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return 0;
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if (iface->desc.bInterfaceProtocol != 1)
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return 0;
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if (iface->desc.bNumEndpoints != 1)
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return 0;
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ep = &iface->ep_desc[0];
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if (!(ep->bEndpointAddress & 0x80))
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return 0;
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if ((ep->bmAttributes & 3) != 3)
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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->desc.bInterfaceNumber, 0);
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USB_KBD_PRINTF("USB KBD found set idle...\n");
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usb_set_idle(dev, iface->desc.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,
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ep->bInterval);
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return 1;
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}
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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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} __packed;
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|
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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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/*
|
|
* HID report item format
|
|
*/
|
|
|
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#define HID_ITEM_FORMAT_SHORT 0
|
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#define HID_ITEM_FORMAT_LONG 1
|
|
|
|
/*
|
|
* Special tag indicating long items
|
|
*/
|
|
|
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#define HID_ITEM_TAG_LONG 15
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|
|
|
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static struct usb_hid_descriptor usb_kbd_hid_desc;
|
|
|
|
void usb_kbd_display_hid(struct usb_hid_descriptor *hid)
|
|
{
|
|
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);
|
|
printf(" bCountryCode %d\n", hid->bCountryCode);
|
|
printf(" bNumDescriptors 0x%x\n", hid->bNumDescriptors);
|
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printf(" bReportDescriptorType 0x%x\n", hid->bReportDescriptorType);
|
|
printf(" wDescriptorLength 0x%x\n", hid->wDescriptorLength);
|
|
}
|
|
|
|
|
|
/*
|
|
* Fetch a report description item from the data stream. We support long
|
|
* items, though they are not used yet.
|
|
*/
|
|
|
|
static int fetch_item(unsigned char *start, unsigned char *end,
|
|
struct hid_item *item)
|
|
{
|
|
if ((end - start) > 0) {
|
|
unsigned char b = *start++;
|
|
item->type = (b >> 2) & 3;
|
|
item->tag = (b >> 4) & 15;
|
|
if (item->tag == HID_ITEM_TAG_LONG) {
|
|
item->format = HID_ITEM_FORMAT_LONG;
|
|
if ((end - start) >= 2) {
|
|
item->size = *start++;
|
|
item->tag = *start++;
|
|
if ((end - start) >= item->size) {
|
|
item->data.longdata = start;
|
|
start += item->size;
|
|
return item->size;
|
|
}
|
|
}
|
|
} else {
|
|
item->format = HID_ITEM_FORMAT_SHORT;
|
|
item->size = b & 3;
|
|
switch (item->size) {
|
|
case 0:
|
|
return item->size;
|
|
case 1:
|
|
if ((end - start) >= 1) {
|
|
item->data.u8 = *start++;
|
|
return item->size;
|
|
}
|
|
break;
|
|
case 2:
|
|
if ((end - start) >= 2) {
|
|
item->data.u16 = le16_to_cpu(
|
|
(unsigned short *)start);
|
|
start += 2;
|
|
return item->size;
|
|
}
|
|
case 3:
|
|
item->size++;
|
|
if ((end - start) >= 4) {
|
|
item->data.u32 = le32_to_cpu(
|
|
(unsigned long *)start);
|
|
start += 4;
|
|
return item->size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* 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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|
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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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/*
|
|
* 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
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#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
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|
|
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/*
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* HID report descriptor collection item types
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|
*/
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|
|
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#define HID_COLLECTION_PHYSICAL 0
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#define HID_COLLECTION_APPLICATION 1
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#define HID_COLLECTION_LOGICAL 2
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/*
|
|
* HID report descriptor global item tags
|
|
*/
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|
|
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#define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0
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#define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1
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#define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2
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#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3
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#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4
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#define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5
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#define HID_GLOBAL_ITEM_TAG_UNIT 6
|
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#define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7
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|
#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
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|
|
|
/*
|
|
* 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
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|
|
|
|
|
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;
|
|
index = usb_get_class_descriptor(dev, 0, USB_DT_REPORT, 0, &buffer[0],
|
|
len);
|
|
if (index < 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
|