diff options
Diffstat (limited to 'cfe/cfe/pccons/kbd_subr.h')
-rw-r--r-- | cfe/cfe/pccons/kbd_subr.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/cfe/cfe/pccons/kbd_subr.h b/cfe/cfe/pccons/kbd_subr.h new file mode 100644 index 0000000..f18f8db --- /dev/null +++ b/cfe/cfe/pccons/kbd_subr.h @@ -0,0 +1,82 @@ +/* ********************************************************************* + * Broadcom Common Firmware Environment (CFE) + * + * PC-style keyboard interface File: KBD_SUBR.C + * + * This module converts a stream of scancodes into ASCII + * characters. The scan codes come from a PC-style + * keyboard. + * + * Author: Mitch Lichtenberg (mpl@broadcom.com) + * + ********************************************************************* + * + * Copyright 2000,2001,2002,2003 + * Broadcom Corporation. All rights reserved. + * + * This software is furnished under license and may be used and + * copied only in accordance with the following terms and + * conditions. Subject to these conditions, you may download, + * copy, install, use, modify and distribute modified or unmodified + * copies of this software in source and/or binary form. No title + * or ownership is transferred hereby. + * + * 1) Any source code used, modified or distributed must reproduce + * and retain this copyright notice and list of conditions + * as they appear in the source file. + * + * 2) No right is granted to use any trade name, trademark, or + * logo of Broadcom Corporation. The "Broadcom Corporation" + * name may not be used to endorse or promote products derived + * from this software without the prior written permission of + * Broadcom Corporation. + * + * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED + * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR + * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT + * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN + * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR 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), EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + ********************************************************************* */ + + +/* ********************************************************************* + * Constants + ********************************************************************* */ + +#define KEYQUEUELEN 16 + +#define KBDCMD_RESET 0xFF +#define KBDCMD_SETLEDS 0xED + +/* ********************************************************************* + * Structures + ********************************************************************* */ + +typedef struct keystate_s { + int ks_shiftflags; + char ks_queue[KEYQUEUELEN]; + int ks_head; + int ks_tail; + int (*ks_setleds)(struct keystate_s *ks,int leds); + void *ks_ref; +} keystate_t; + +/* ********************************************************************* + * Prototypes + ********************************************************************* */ + +int kbd_read(keystate_t *ks); +int kbd_inpstat(keystate_t *ks); +void kbd_init(keystate_t *ks,int (*setleds)(keystate_t *,int),void *ref); +void kbd_doscan(keystate_t *ks,uint8_t scan); +#define kbd_getref(x) ((x)->ks_ref) + + |