1/* 2 * Driver for the NXP SAA7164 PCIe bridge 3 * 4 * Copyright (c) 2009 Steven Toth <stoth@kernellabs.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 22/* TODO: Retest the driver with errors expressed as negatives */ 23 24/* Result codes */ 25#define SAA_OK 0 26#define SAA_ERR_BAD_PARAMETER 0x09 27#define SAA_ERR_NO_RESOURCES 0x0c 28#define SAA_ERR_NOT_SUPPORTED 0x13 29#define SAA_ERR_BUSY 0x15 30#define SAA_ERR_READ 0x17 31#define SAA_ERR_TIMEOUT 0x1f 32#define SAA_ERR_OVERFLOW 0x20 33#define SAA_ERR_EMPTY 0x22 34#define SAA_ERR_NOT_STARTED 0x23 35#define SAA_ERR_ALREADY_STARTED 0x24 36#define SAA_ERR_NOT_STOPPED 0x25 37#define SAA_ERR_ALREADY_STOPPED 0x26 38#define SAA_ERR_INVALID_COMMAND 0x3e 39#define SAA_ERR_NULL_PACKET 0x59 40 41/* Errors and flags from the silicon */ 42#define PVC_ERRORCODE_UNKNOWN 0x00 43#define PVC_ERRORCODE_INVALID_COMMAND 0x01 44#define PVC_ERRORCODE_INVALID_CONTROL 0x02 45#define PVC_ERRORCODE_INVALID_DATA 0x03 46#define PVC_ERRORCODE_TIMEOUT 0x04 47#define PVC_ERRORCODE_NAK 0x05 48#define PVC_RESPONSEFLAG_ERROR 0x01 49#define PVC_RESPONSEFLAG_OVERFLOW 0x02 50#define PVC_RESPONSEFLAG_RESET 0x04 51#define PVC_RESPONSEFLAG_INTERFACE 0x08 52#define PVC_RESPONSEFLAG_CONTINUED 0x10 53#define PVC_CMDFLAG_INTERRUPT 0x02 54#define PVC_CMDFLAG_INTERFACE 0x04 55#define PVC_CMDFLAG_SERIALIZE 0x08 56#define PVC_CMDFLAG_CONTINUE 0x10 57 58/* Silicon Commands */ 59#define GET_DESCRIPTORS_CONTROL 0x01 60#define GET_STRING_CONTROL 0x03 61#define GET_LANGUAGE_CONTROL 0x05 62#define SET_POWER_CONTROL 0x07 63#define GET_FW_VERSION_CONTROL 0x09 64#define SET_DEBUG_LEVEL_CONTROL 0x0B 65#define GET_DEBUG_DATA_CONTROL 0x0C 66#define GET_PRODUCTION_INFO_CONTROL 0x0D 67 68/* cmd defines */ 69#define SAA_CMDFLAG_CONTINUE 0x10 70#define SAA_CMD_MAX_MSG_UNITS 256 71 72/* Some defines */ 73#define SAA_BUS_TIMEOUT 50 74#define SAA_DEVICE_TIMEOUT 5000 75#define SAA_DEVICE_MAXREQUESTSIZE 256 76 77/* Register addresses */ 78#define SAA_DEVICE_VERSION 0x30 79#define SAA_DOWNLOAD_FLAGS 0x34 80#define SAA_DOWNLOAD_FLAG 0x34 81#define SAA_DOWNLOAD_FLAG_ACK 0x38 82#define SAA_DATAREADY_FLAG 0x3C 83#define SAA_DATAREADY_FLAG_ACK 0x40 84 85/* Boot loader register and bit definitions */ 86#define SAA_BOOTLOADERERROR_FLAGS 0x44 87#define SAA_DEVICE_IMAGE_SEARCHING 0x01 88#define SAA_DEVICE_IMAGE_LOADING 0x02 89#define SAA_DEVICE_IMAGE_BOOTING 0x03 90#define SAA_DEVICE_IMAGE_CORRUPT 0x04 91#define SAA_DEVICE_MEMORY_CORRUPT 0x08 92#define SAA_DEVICE_NO_IMAGE 0x10 93 94/* Register addresses */ 95#define SAA_DEVICE_2ND_VERSION 0x50 96#define SAA_DEVICE_2ND_DOWNLOADFLAG_OFFSET 0x54 97 98/* Register addresses */ 99#define SAA_SECONDSTAGEERROR_FLAGS 0x64 100 101/* Bootloader regs and flags */ 102#define SAA_DEVICE_DEADLOCK_DETECTED_OFFSET 0x6C 103#define SAA_DEVICE_DEADLOCK_DETECTED 0xDEADDEAD 104 105/* Basic firmware status registers */ 106#define SAA_DEVICE_SYSINIT_STATUS_OFFSET 0x70 107#define SAA_DEVICE_SYSINIT_STATUS 0x70 108#define SAA_DEVICE_SYSINIT_MODE 0x74 109#define SAA_DEVICE_SYSINIT_SPEC 0x78 110#define SAA_DEVICE_SYSINIT_INST 0x7C 111#define SAA_DEVICE_SYSINIT_CPULOAD 0x80 112#define SAA_DEVICE_SYSINIT_REMAINHEAP 0x84 113 114#define SAA_DEVICE_DOWNLOAD_OFFSET 0x1000 115#define SAA_DEVICE_BUFFERBLOCKSIZE 0x1000 116 117#define SAA_DEVICE_2ND_BUFFERBLOCKSIZE 0x100000 118#define SAA_DEVICE_2ND_DOWNLOAD_OFFSET 0x200000 119 120/* Descriptors */ 121#define CS_INTERFACE 0x24 122 123/* Descriptor subtypes */ 124#define VC_INPUT_TERMINAL 0x02 125#define VC_OUTPUT_TERMINAL 0x03 126#define VC_SELECTOR_UNIT 0x04 127#define VC_PROCESSING_UNIT 0x05 128#define FEATURE_UNIT 0x06 129#define TUNER_UNIT 0x09 130#define ENCODER_UNIT 0x0A 131#define EXTENSION_UNIT 0x0B 132#define VC_TUNER_PATH 0xF0 133#define PVC_HARDWARE_DESCRIPTOR 0xF1 134#define PVC_INTERFACE_DESCRIPTOR 0xF2 135#define PVC_INFRARED_UNIT 0xF3 136#define DRM_UNIT 0xF4 137#define GENERAL_REQUEST 0xF5 138 139/* Format Types */ 140#define VS_FORMAT_TYPE 0x02 141#define VS_FORMAT_TYPE_I 0x01 142#define VS_FORMAT_UNCOMPRESSED 0x04 143#define VS_FRAME_UNCOMPRESSED 0x05 144#define VS_FORMAT_MPEG2PS 0x09 145#define VS_FORMAT_MPEG2TS 0x0A 146#define VS_FORMAT_MPEG4SL 0x0B 147#define VS_FORMAT_WM9 0x0C 148#define VS_FORMAT_DIVX 0x0D 149#define VS_FORMAT_VBI 0x0E 150#define VS_FORMAT_RDS 0x0F 151 152/* Device extension commands */ 153#define EXU_REGISTER_ACCESS_CONTROL 0x00 154#define EXU_GPIO_CONTROL 0x01 155#define EXU_GPIO_GROUP_CONTROL 0x02 156#define EXU_INTERRUPT_CONTROL 0x03 157 158/* State Transition and args */ 159#define SAA_STATE_CONTROL 0x03 160#define SAA_DMASTATE_STOP 0x00 161#define SAA_DMASTATE_ACQUIRE 0x01 162#define SAA_DMASTATE_PAUSE 0x02 163#define SAA_DMASTATE_RUN 0x03 164 165/* Hardware registers */ 166