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/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
*
* 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* TODO: Retest the driver with errors expressed as negatives */
/* Result codes */
#define SAA_OK 0
#define SAA_ERR_BAD_PARAMETER 0x09
#define SAA_ERR_NO_RESOURCES 0x0c
#define SAA_ERR_NOT_SUPPORTED 0x13
#define SAA_ERR_BUSY 0x15
#define SAA_ERR_READ 0x17
#define SAA_ERR_TIMEOUT 0x1f
#define SAA_ERR_OVERFLOW 0x20
#define SAA_ERR_EMPTY 0x22
#define SAA_ERR_NOT_STARTED 0x23
#define SAA_ERR_ALREADY_STARTED 0x24
#define SAA_ERR_NOT_STOPPED 0x25
#define SAA_ERR_ALREADY_STOPPED 0x26
#define SAA_ERR_INVALID_COMMAND 0x3e
#define SAA_ERR_NULL_PACKET 0x59
/* Errors and flags from the silicon */
#define PVC_ERRORCODE_UNKNOWN 0x00
#define PVC_ERRORCODE_INVALID_COMMAND 0x01
#define PVC_ERRORCODE_INVALID_CONTROL 0x02
#define PVC_ERRORCODE_INVALID_DATA 0x03
#define PVC_ERRORCODE_TIMEOUT 0x04
#define PVC_ERRORCODE_NAK 0x05
#define PVC_RESPONSEFLAG_ERROR 0x01
#define PVC_RESPONSEFLAG_OVERFLOW 0x02
#define PVC_RESPONSEFLAG_RESET 0x04
#define PVC_RESPONSEFLAG_INTERFACE 0x08
#define PVC_RESPONSEFLAG_CONTINUED 0x10
#define PVC_CMDFLAG_INTERRUPT 0x02
#define PVC_CMDFLAG_INTERFACE 0x04
#define PVC_CMDFLAG_SERIALIZE 0x08
#define PVC_CMDFLAG_CONTINUE 0x10
/* Silicon Commands */
#define GET_DESCRIPTORS_CONTROL 0x01
#define GET_STRING_CONTROL 0x03
#define GET_LANGUAGE_CONTROL 0x05
#define SET_POWER_CONTROL 0x07
#define GET_FW_VERSION_CONTROL 0x09
#define SET_DEBUG_LEVEL_CONTROL 0x0B
#define GET_DEBUG_DATA_CONTROL 0x0C
#define GET_PRODUCTION_INFO_CONTROL 0x0D
/* cmd defines */
#define SAA_CMDFLAG_CONTINUE 0x10
#define SAA_CMD_MAX_MSG_UNITS 256
/* Some defines */
#define SAA_BUS_TIMEOUT 50
#define SAA_DEVICE_TIMEOUT 5000
#define SAA_DEVICE_MAXREQUESTSIZE 256
/* Register addresses */
#define SAA_DEVICE_VERSION 0x30
#define SAA_DOWNLOAD_FLAGS 0x34
#define SAA_DOWNLOAD_FLAG 0x34
#define SAA_DOWNLOAD_FLAG_ACK 0x38
#define SAA_DATAREADY_FLAG 0x3C
#define SAA_DATAREADY_FLAG_ACK 0x40
/* Boot loader register and bit definitions */
#define SAA_BOOTLOADERERROR_FLAGS 0x44
#define SAA_DEVICE_IMAGE_SEARCHING 0x01
#define SAA_DEVICE_IMAGE_LOADING 0x02
#define SAA_DEVICE_IMAGE_BOOTING 0x03
#define SAA_DEVICE_IMAGE_CORRUPT 0x04
#define SAA_DEVICE_MEMORY_CORRUPT 0x08
#define SAA_DEVICE_NO_IMAGE 0x10
/* Register addresses */
#define SAA_DEVICE_2ND_VERSION 0x50
#define SAA_DEVICE_2ND_DOWNLOADFLAG_OFFSET 0x54
/* Register addresses */
#define SAA_SECONDSTAGEERROR_FLAGS 0x64
/* Bootloader regs and flags */
#define SAA_DEVICE_DEADLOCK_DETECTED_OFFSET 0x6C
#define SAA_DEVICE_DEADLOCK_DETECTED 0xDEADDEAD
/* Basic firmware status registers */
#define SAA_DEVICE_SYSINIT_STATUS_OFFSET 0x70
#define SAA_DEVICE_SYSINIT_STATUS 0x70
#define SAA_DEVICE_SYSINIT_MODE 0x74
#define SAA_DEVICE_SYSINIT_SPEC 0x78
#define SAA_DEVICE_SYSINIT_INST 0x7C
#define SAA_DEVICE_SYSINIT_CPULOAD 0x80
#define SAA_DEVICE_SYSINIT_REMAINHEAP 0x84
#define SAA_DEVICE_DOWNLOAD_OFFSET 0x1000
#define SAA_DEVICE_BUFFERBLOCKSIZE 0x1000
#define SAA_DEVICE_2ND_BUFFERBLOCKSIZE 0x100000
#define SAA_DEVICE_2ND_DOWNLOAD_OFFSET 0x200000
/* Descriptors */
#define CS_INTERFACE 0x24
/* Descriptor subtypes */
#define VC_INPUT_TERMINAL 0x02
#define VC_OUTPUT_TERMINAL 0x03
#define VC_SELECTOR_UNIT 0x04
#define VC_PROCESSING_UNIT 0x05
#define FEATURE_UNIT 0x06
#define TUNER_UNIT 0x09
#define ENCODER_UNIT 0x0A
#define EXTENSION_UNIT 0x0B
#define VC_TUNER_PATH 0xF0
#define PVC_HARDWARE_DESCRIPTOR 0xF1
#define PVC_INTERFACE_DESCRIPTOR 0xF2
#define PVC_INFRARED_UNIT 0xF3
#define DRM_UNIT 0xF4
#define GENERAL_REQUEST 0xF5
/* Format Types */
#define VS_FORMAT_TYPE 0x02
#define VS_FORMAT_TYPE_I 0x01
#define VS_FORMAT_UNCOMPRESSED 0x04
#define VS_FRAME_UNCOMPRESSED 0x05
#define VS_FORMAT_MPEG2PS 0x09
#define VS_FORMAT_MPEG2TS 0x0A
#define VS_FORMAT_MPEG4SL 0x0B
#define VS_FORMAT_WM9 0x0C
#define VS_FORMAT_DIVX 0x0D
#define VS_FORMAT_VBI 0x0E
#define VS_FORMAT_RDS 0x0F
/* Device extension commands */
#define EXU_REGISTER_ACCESS_CONTROL 0x00
#define EXU_GPIO_CONTROL 0x01
#define EXU_GPIO_GROUP_CONTROL 0x02
#define EXU_INTERRUPT_CONTROL 0x03
/* State Transition and args */
#define SAA_STATE_CONTROL 0x03
#define SAA_DMASTATE_STOP 0x00
#define SAA_DMASTATE_ACQUIRE 0x01
#define SAA_DMASTATE_PAUSE 0x02
#define SAA_DMASTATE_RUN 0x03
/* Hardware registers */
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