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/*

 * Copyright (C) 2013 Chris

 *

 * This file is part of paparazzi.

 *

 * paparazzi 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, or (at your option)

 * any later version.

 *

 * paparazzi 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 paparazzi; see the file COPYING.  If not, write to

 * the Free Software Foundation, 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 *

 */


#ifndef MAX7456_REGS_H

#define MAX7456_REGS_H


//OSD REGISTER ADDRESSES

#define OSD_VM0_REG      0x00

#define OSD_VM1_REG      0x01

#define OSD_DMM_REG      0x04

#define OSD_DMAH_REG     0x05

#define OSD_DMAL_REG     0x06

#define OSD_DMDI_REG     0x07

#define OSD_OSDBL_REG    0x6C

#define OSD_OSDBL_REG_R  0xEC

#define OSD_STAT_REG     0xA0


//OSD BIT POSITIONS

#define OSD_VIDEO_MODE_PAL        (1<<6)          // Default = NTSC

#define OSD_SYNC_INTERNAL         ((1<<5)|(1<<4)) // Default = AUTO

#define OSD_SYNC_EXTERNAL         ((1<<5)   // Default = AUTO

#define OSD_IMAGE_ENABLE          (1<<3)    // Default = OSD OFF

#define OSD_REFRESH_ON_NEXT_VSYNC (1<<2)    // Default = immediately refresh video

#define OSD_RESET                 (1<<1)    // VM0 reg, hardware set to 0 after reset

#define OSD_VOUT_DISABLE          (1<<0)    // default= VIDEO OUT ENABLED

#define OSD_8BIT_MODE             (1<<6)    // default= 16 BIT MODE

#define OSD_BLINK_CHAR            (1<<4)    // default= No BLINKING

#define OSD_INVERT_PIXELS         (1<<3)    // default= No INVERSION

#define OSD_CLEAR_DISPLAY_MEMORY  (1<<2)    // DMM reg, default = 0

#define OSD_AUTO_INCREMENT_MODE   (1<<0)    // default = NO AUTO INCREMENT


//OSD STATUS REGISTER BIT POSITIONS

#define OSD_UNUSED_FLAG           (1<<7)    // It is not used.

#define OSD_RESET_BUSY_FLAG       (1<<6)    // 0=power on reset completed, 1=busy with reset.

#define OSD_NVRAM_BUSY_FLAG       (1<<5)    // 0=memory available, 1=memory busy

#define OSD_VSYNC_ABSENT_FLAG     (1<<4)    // 0=vertical sync active, 1= no vsync

#define OSD_HSYNC_ABSENT_FLAG     (1<<3)    // 0=Horizontal sync active, 1= no Hsync

#define OSD_LOS_ABSENT_FLAG       (1<<2)    // 0=sync active, 1= no sync

#define OSD_NTSC_PRESENT_FLAG     (1<<1)    // 0=No NTSC signal detected, 1=NTSC signal detected.

#define OSD_PAL_PRESENT_FLAG      (1<<0)    // 0=No PAL signal detected, 1=PAL signal detected.


// MAX7456 VIDEO_MODE_0 register

#define VIDEO_MODE_0_WRITE              0x00

#define VIDEO_MODE_0_READ               0x80

#define VIDEO_MODE_0_40_PAL             0x40

#define VIDEO_MODE_0_20_NoAutoSync      0x20

#define VIDEO_MODE_0_10_SyncInt         0x10

#define VIDEO_MODE_0_08_EnOSD           0x08

#define VIDEO_MODE_0_04_UpdateVsync     0x04

#define VIDEO_MODE_0_02_Reset           0x02

#define VIDEO_MODE_0_01_EnVideo         0x01

// VIDEO MODE 0 bitmap

#define NTSC                            0x00

#define PAL                             0x40

#define AUTO_SYNC                       0x00

#define EXT_SYNC                        0x20

#define INT_SYNC                        0x30

#define OSD_EN                          0x08

#define VERT_SYNC_IMM                   0x00

#define VERT_SYNC_VSYNC                 0x04

#define SW_RESET                        0x02

#define BUF_EN                          0x00

#define BUF_DI                          0x01


// MAX7456 VIDEO_MODE_1 register

#define VIDEO_MODE_1_WRITE              0x01

#define VIDEO_MODE_1_READ               0x81


// MAX7456 DM_MODE register

#define DM_MODE_WRITE                   0x04

#define DM_MODE_READ                    0x84


// MAX7456 DM_ADDRH register

#define DM_ADDRH_WRITE                  0x05

#define DM_ADDRH_READ                   0x85


// MAX7456 DM_ADDRL register

#define DM_ADDRL_WRITE                  0x06

#define DM_ADDRL_READ                   0x87


// MAX7456 DM_CODE_IN register

#define DM_CODE_IN_WRITE                0x07

#define DM_CODE_IN_READ                 0x87


// MAX7456 DM_CODE_OUT register

#define DM_CODE_OUT_READ                0xB0


// MAX7456 FM_MODE register

#define FM_MODE_WRITE                   0x08

#define FM_MODE_READ                    0x88


// MAX7456 FM_ADDRH register

#define FM_ADDRH_WRITE                  0x09

#define FM_ADDRH_READ                   0x89


// MAX7456 FM_ADDRL register

#define FM_ADDRL_WRITE                  0x0A

#define FM_ADDRL_READ                   0x8A


// MAX7456 FM_DATA_IN register

#define FM_DATA_IN_WRITE                0x0B

#define FM_DATA_IN_READ                 0x8B


// MAX7456 FM_DATA_OUT register

#define FM_DATA_OUT_READ                0xC0


// MAX7456 requires clearing OSD Black Level register bit 0x10 after reset

#define OSDBL_WR                        0x6C

#define OSDBL_RD                        0xEC

#define OSDBL_10_DisableAutoBlackLevel  0x10


#endif //MAX7456_REGS_H