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/*++
linux/include/asm-arm/arch-wmt/wmt_lpad.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.
--*/
/* Be sure that virtual mapping is defined right */
#ifndef __ASM_ARCH_HARDWARE_H
#error "You must include hardware.h, not wmt_kpad.h"
#endif
#ifndef __WMT_KPAD_H
#define __WMT_KPAD_H
/*=============================================================================
*
*Define the register access macros.
*
*Note: Current policy in standalone program is using register as a pointer.
*
*=============================================================================*/
/*=============================================================================
*
* WMT Keypad Base Address.
*
*=============================================================================*/
#ifdef __KPAD_BASE
#error "__KPAD_BASE has already been defined in another file."
#else
#define __KPAD_BASE KPAD_BASE_ADDR /* 64K */
#endif
/*=============================================================================
*
* WMT Keypad control registers.
*
* Registers Abbreviations:
*
* KPMCR_REG Keypad Matrix Control Register.
*
* KPDCR_REG Keypad Direct Input Control Register.
*
* KPICR_REG Keypad Invert Input Control Register.
*
* KPSTR_REG Keypad STatus Register.
*
* KPMAR_REG Keypad Matrix Primary Key Automatic Scan Register.
*
* KPDSR_REG Keypad Direct Input Key Scan Register.
*
* KPMMR_REG Keypad Matrix Manual Key Scan Register.
*
* KPRIR_REG Keypad Row Input Register.
*
* KPMR0_REG Keypad Matrix Multiple Keys Scan Register 0.
*
* KPMR1_REG Keypad Matrix Multiple Keys Scan Register 1.
*
* KPMR2_REG Keypad Matrix Multiple Keys Scan Register 2.
*
* KPMR3_REG Keypad Matrix Multiple Keys Scan Register 3.
*
* KPMIR_REG Keypad Matrix Debounce and Scan Interval Register.
*
* KPDIR_REG Keypad Direct Input Debounce Interval Register.
*
*=============================================================================*/
/*=============================================================================
*
* Address constant for each register.
*
*=============================================================================*/
#define KPMCR_ADDR (__KPAD_BASE + 0x00)
#define KPDCR_ADDR (__KPAD_BASE + 0x04)
#define KPICR_ADDR (__KPAD_BASE + 0x08)
#define KPSTR_ADDR (__KPAD_BASE + 0x0C)
#define KPMAR_ADDR (__KPAD_BASE + 0x10)
#define KPDSR_ADDR (__KPAD_BASE + 0x14)
#define KPMMR_ADDR (__KPAD_BASE + 0x18)
#define KPRIR_ADDR (__KPAD_BASE + 0x1C)
#define KPMR0_ADDR (__KPAD_BASE + 0x20)
#define KPMR1_ADDR (__KPAD_BASE + 0x24)
#define KPMR2_ADDR (__KPAD_BASE + 0x28)
#define KPMR3_ADDR (__KPAD_BASE + 0x2C)
#define KPMIR_ADDR (__KPAD_BASE + 0x30)
#define KPDIR_ADDR (__KPAD_BASE + 0x34)
/*=============================================================================
*
* Register pointer.
*
*=============================================================================*/
#define KPMCR_REG (REG32_PTR(KPMCR_ADDR))
#define KPDCR_REG (REG32_PTR(KPDCR_ADDR))
#define KPICR_REG (REG32_PTR(KPICR_ADDR))
#define KPSTR_REG (REG32_PTR(KPSTR_ADDR))
#define KPMAR_REG (REG32_PTR(KPMAR_ADDR))
#define KPDSR_REG (REG32_PTR(KPDSR_ADDR))
#define KPMMR_REG (REG32_PTR(KPMMR_ADDR))
#define KPRIR_REG (REG32_PTR(KPRIR_ADDR))
#define KPMR0_REG (REG32_PTR(KPMR0_ADDR))
#define KPMR1_REG (REG32_PTR(KPMR1_ADDR))
#define KPMR2_REG (REG32_PTR(KPMR2_ADDR))
#define KPMR3_REG (REG32_PTR(KPMR3_ADDR))
#define KPMIR_REG (REG32_PTR(KPMIR_ADDR))
#define KPDIR_REG (REG32_PTR(KPDIR_ADDR))
/*=============================================================================
*
* Register value.
*
*=============================================================================*/
#define KPMCR_VAL (REG32_VAL(KPMCR_ADDR))
#define KPDCR_VAL (REG32_VAL(KPDCR_ADDR))
#define KPICR_VAL (REG32_VAL(KPICR_ADDR))
#define KPSTR_VAL (REG32_VAL(KPSTR_ADDR))
#define KPMAR_VAL (REG32_VAL(KPMAR_ADDR))
#define KPDSR_VAL (REG32_VAL(KPDSR_ADDR))
#define KPMMR_VAL (REG32_VAL(KPMMR_ADDR))
#define KPRIR_VAL (REG32_VAL(KPRIR_ADDR))
#define KPMR0_VAL (REG32_VAL(KPMR0_ADDR))
#define KPMR1_VAL (REG32_VAL(KPMR1_ADDR))
#define KPMR2_VAL (REG32_VAL(KPMR2_ADDR))
#define KPMR3_VAL (REG32_VAL(KPMR3_ADDR))
#define KPMIR_VAL (REG32_VAL(KPMIR_ADDR))
#define KPDIR_VAL (REG32_VAL(KPDIR_ADDR))
/*=============================================================================
*
* 16' h0038-16' hFFFF Reserved (Read-only, all zeros)
*
*=============================================================================*/
/*=============================================================================
*
* KPMCR_REG Keypad Matrix Control Register.
*
*=============================================================================*/
#define KPMCR_EN BIT0 /* Keypad Matrix Enable bit. */
#define KPMCR_IEN BIT1 /* Keypad Matrix Interrupt Request Enable bit. */
#define KPMCR_AS BIT2 /* Keypad Matrix Automatic Scan bit. */
#define KPMCR_ASA BIT3 /* Keypad Matrix Automatic Scan on Activity bit. */
#define KPMCR_IMK BIT4 /* Keypad Matrix Ignore Multiple Key-press bit. */
#define KPMCR_COLMASK 0x0700 /* Keypad Matrix Column Number bits. */
#define KPMCR_ROWMASK 0x7000 /* Keypad Matrix Row Number bits. */
#define KPMCR_MSMASK (0xFF << 16) /* Manual Keypad Matrix Scan Output signals */
#define KPMCR_COL(x) (((x) << 8) & KPMCR_COLMASK)
#define KPMCR_ROW(x) (((x) << 12) & KPMCR_ROWMASK)
#define KPMCR_MS(x) (((x) << 16) & KPMCR_MSMASK)
/*=============================================================================
*
* KPDCR_REG Keypad Direct Input Control Register.
*
*=============================================================================*/
#define KPDCR_EN BIT0 /* Direct Input Enable */
#define KPDCR_IEN BIT1 /* Direct Input Interrupt Request Enable */
#define KPDCR_ASA BIT3 /* Direct Input Automatic Scan on Activity */
#define KPDCR_IMK BIT4 /* Direct Input Ignore Muiltiple Key-press */
#define KPDCR_DENMASK (0xFF << 16) /* Direct Input Enable bit[0:7] */
#define KPDCR_DEN(x) (((x) << 16) & KPDCR_DENMASK)
/*=============================================================================
*
* KPICR_REG Keypad Invert Input Control Register.
*
*=============================================================================*/
#define KPICR_IRIMASK (0xFF << 16) /* Invert Row input signals */
#define KPICR_IRI(x) (((x) << 16) & KPICR_IRIMASK)
/*=============================================================================
*
* KPSTR_REG Keypad Status Register.
*
*=============================================================================*/
#define KPSTR_MDA BIT0 /* Keypad Matrix Manual Debounce Active Key bit. */
#define KPSTR_ASA BIT1 /* Keypad Matrix Automatic Scan on Activity bit. */
#define KPSTR_ASC BIT2 /* Keypad Matrix Automatic Scan Completed bit. */
#define KPSTR_DIA BIT3 /* Keypad Direct Input Active bit. */
#define KPSTR_MASK 0xF
/*=============================================================================
*
* KPMAR_REG Keypad Matrix Primary Key Automatic Scan Register.
*
*=============================================================================*/
#define KPMAR_COLMASK (BIT0 | BIT1 | BIT2)
#define KPMAR_ROWMASK (BIT4 | BIT5 | BIT6)
#define KPMAR_KEYMASK (BIT29 | BIT30)
#define KPMAR_KEYSHIFT 29
#define KPMAR_KEY(reg) (((reg) & KPMAR_KEYMASK) >> KPMAR_KEYSHIFT)
#define KPMAR_NOKEY 0x0 /* Bit[29:30] no key pressed. */
#define KPMAR_ONEKEY 0x1 /* Bit[29:30] one key pressed. */
#define KPMAR_MULTIKEYS 0x2 /* Bit[29:30] multiple keys pressed.*/
/* Notice that 0x3 is also multikeys */
#define KPMAR_VALID BIT31
/*
* Keypad Direct Input Key Scan Register
*/
#define Dir_Input (BIT0|BIT1|BIT2|BIT3|BIT4|BIT5|BIT6|BIT7)
#define Dir_Vaild_Scan (BIT31)
/*
* Keypad Manual Matrix Key Scan Register
*/
/*
* Keypad Row Input Register
*/
#define Row_Input (BIT0|BIT1|BIT2|BIT3|BIT4|BIT5|BIT6|BIT7)
/*=============================================================================
*
* KPMR0_REG Keypad Matrix Multiple Key Scan Register 0.
* KPMR1_REG Keypad Matrix Multiple Key Scan Register 1.
* KPMR2_REG Keypad Matrix Multiple Key Scan Register 2.
* KPMR3_REG Keypad Matrix Multiple Key Scan Register 3.
*
*=============================================================================*/
#define KPMRX_VALID BIT31
#define KPMRX_EVENMASK 0xFF /* Even Column Row Input Active bits. */
#define KPMRX_ODDMASK (0xFF << 16) /* Odd Column Row Input Active bits. */
/*=============================================================================
*
* KPMIR_REG Keypad Matrix Debounce and Scan Interval Register.
*
*=============================================================================*/
#define KPMIR_DIMASK 0x0FFF /* Matrix debounce interval mask */
#define KPMIR_SIMASK (0xFF << 16) /* Keypaf scan interval mask */
#define KPMIR_DI(x) ((x) & KPMIR_DIMASK)
#define KPMIR_SI(x) (((x) << 16) & KPMIR_SIMASK)
/*=============================================================================
*
* KPDIR_REG Keypad Direct Debounce and Scan Interval Register.
*
*=============================================================================*/
#define KPDIR_DIMASK 0x0FFF /* Direct input debounce interval mask */
#define KPDIR_DI(x) ((x) & KPDIR_DIMASK)
/*=============================================================================
*
* Feature Supported (Keypad Module)
*
*=============================================================================*/
/*
#define AutoScna (MIE | MAS | MASA)
#define ManualScan (MIE & (~MAS) & (~MASA))
#define DirectScan ((~MAS) & (~MASA))
#define Col3xRow4 (Col3 | Row4)
#define Col4xRow4 (Col4 | Row4)
*/
#endif
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