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/*++
linux/include/asm-arm/arch-wmt/kpad.h
Copyright (c) 2008 WonderMedia Technologies, Inc.
This program is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software Foundation,
either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
WonderMedia Technologies, Inc.
10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C.
--*/
#ifndef __ASM_ARCH_KPAD_H
#define __ASM_ARCH_KPAD_H
#include <linux/ioport.h>
/*
* Keypad register set structure
*/
struct kpad_regs_s {
unsigned int volatile kpmcr;
unsigned int volatile kpdcr;
unsigned int volatile kpicr;
unsigned int volatile kpstr;
unsigned int volatile kpmar;
unsigned int volatile kpdsr;
unsigned int volatile kpmmr;
unsigned int volatile kprir;
unsigned int volatile kpmr0;
unsigned int volatile kpmr1;
unsigned int volatile kpmr2;
unsigned int volatile kpmr3;
unsigned int volatile kpmir;
unsigned int volatile kpdir;
};
struct multi_key_s {
unsigned int even:8; /* even col row input */
unsigned int res0:8; /* reserved bits */
unsigned int odd:8; /* odd col row input */
unsigned int res1:7; /* reserved bits */
unsigned int flag:1; /* valid flag */
};
/*
* Keypad interrupt event counters.
*/
struct kpad_ints_s {
/*
* Global Status.
*/
unsigned int mda; /* Keypad matrix manual debounce active */
unsigned int asa; /* Keypad matrix automatic scan on activity */
unsigned int asc; /* Keypad matrix automatic scan completed */
unsigned int dia; /* Keypad direct input active */
unsigned int err; /* Error keypad interrupts */
};
/*
* Context need to be saved while hibernation.
*/
struct kpad_saved_s {
unsigned int kpmcr;
unsigned int kpdcr;
unsigned int kpicr;
unsigned int kpmir;
unsigned int kpdir;
};
/*
* wmt keypad operation structure.
*/
struct wmt_kpad_s {
/* Module reference counter */
unsigned int ref;
/* I/O Resource */
struct resource *res;
/* Keypad I/O register set. */
struct kpad_regs_s *regs;
/* Interrupt number and status counters. */
unsigned int irq;
struct kpad_ints_s ints;
};
#define KPAD_IO_SIZE sizeof(struct kpad_regs_s)
#define KPAD_INTS_SIZE sizeof(struct kpad_ints_s)
#endif /* __ASM_ARCH_KPAD_H */
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