forked from Minki/linux
bc25068495
Checkpatch compliance cleanup across files in the saa7164 driver. Signed-off-by: Steven Toth <stoth@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
650 lines
18 KiB
C
650 lines
18 KiB
C
/*
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* Driver for the NXP SAA7164 PCIe bridge
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*
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* Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include "saa7164.h"
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/* The Bridge API needs to understand register widths (in bytes) for the
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* attached I2C devices, so we can simplify the virtual i2c mechansms
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* and keep the -i2c.c implementation clean.
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*/
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#define REGLEN_8bit 1
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#define REGLEN_16bit 2
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struct saa7164_board saa7164_boards[] = {
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[SAA7164_BOARD_UNKNOWN] = {
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/* Bridge will not load any firmware, without knowing
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* the rev this would be fatal. */
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.name = "Unknown",
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},
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[SAA7164_BOARD_UNKNOWN_REV2] = {
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/* Bridge will load the v2 f/w and dump descriptors */
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/* Required during new board bringup */
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.name = "Generic Rev2",
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.chiprev = SAA7164_CHIP_REV2,
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},
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[SAA7164_BOARD_UNKNOWN_REV3] = {
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/* Bridge will load the v2 f/w and dump descriptors */
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/* Required during new board bringup */
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.name = "Generic Rev3",
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.chiprev = SAA7164_CHIP_REV3,
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},
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[SAA7164_BOARD_HAUPPAUGE_HVR2200] = {
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.name = "Hauppauge WinTV-HVR2200",
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.porta = SAA7164_MPEG_DVB,
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.portb = SAA7164_MPEG_DVB,
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.portc = SAA7164_MPEG_ENCODER,
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.portd = SAA7164_MPEG_ENCODER,
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.porte = SAA7164_MPEG_VBI,
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.portf = SAA7164_MPEG_VBI,
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.chiprev = SAA7164_CHIP_REV3,
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.unit = {{
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.id = 0x1d,
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.type = SAA7164_UNIT_EEPROM,
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.name = "4K EEPROM",
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.i2c_bus_nr = SAA7164_I2C_BUS_0,
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.i2c_bus_addr = 0xa0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x04,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1b,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1e,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "TDA10048-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x10 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1f,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "TDA10048-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x12 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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} },
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},
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[SAA7164_BOARD_HAUPPAUGE_HVR2200_2] = {
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.name = "Hauppauge WinTV-HVR2200",
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.porta = SAA7164_MPEG_DVB,
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.portb = SAA7164_MPEG_DVB,
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.portc = SAA7164_MPEG_ENCODER,
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.portd = SAA7164_MPEG_ENCODER,
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.porte = SAA7164_MPEG_VBI,
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.portf = SAA7164_MPEG_VBI,
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.chiprev = SAA7164_CHIP_REV2,
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.unit = {{
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.id = 0x06,
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.type = SAA7164_UNIT_EEPROM,
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.name = "4K EEPROM",
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.i2c_bus_nr = SAA7164_I2C_BUS_0,
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.i2c_bus_addr = 0xa0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x04,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x05,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "TDA10048-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x10 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1e,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1f,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "TDA10048-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x12 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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} },
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},
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[SAA7164_BOARD_HAUPPAUGE_HVR2200_3] = {
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.name = "Hauppauge WinTV-HVR2200",
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.porta = SAA7164_MPEG_DVB,
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.portb = SAA7164_MPEG_DVB,
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.portc = SAA7164_MPEG_ENCODER,
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.portd = SAA7164_MPEG_ENCODER,
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.porte = SAA7164_MPEG_VBI,
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.portf = SAA7164_MPEG_VBI,
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.chiprev = SAA7164_CHIP_REV2,
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.unit = {{
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.id = 0x1d,
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.type = SAA7164_UNIT_EEPROM,
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.name = "4K EEPROM",
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.i2c_bus_nr = SAA7164_I2C_BUS_0,
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.i2c_bus_addr = 0xa0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x04,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x05,
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.type = SAA7164_UNIT_ANALOG_DEMODULATOR,
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.name = "TDA8290-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x84 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1b,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1c,
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.type = SAA7164_UNIT_ANALOG_DEMODULATOR,
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.name = "TDA8290-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x84 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1e,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "TDA10048-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x10 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1f,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "TDA10048-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x12 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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} },
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},
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[SAA7164_BOARD_HAUPPAUGE_HVR2250] = {
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.name = "Hauppauge WinTV-HVR2250",
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.porta = SAA7164_MPEG_DVB,
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.portb = SAA7164_MPEG_DVB,
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.portc = SAA7164_MPEG_ENCODER,
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.portd = SAA7164_MPEG_ENCODER,
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.portc = SAA7164_MPEG_ENCODER,
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.portd = SAA7164_MPEG_ENCODER,
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.porte = SAA7164_MPEG_VBI,
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.portf = SAA7164_MPEG_VBI,
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.chiprev = SAA7164_CHIP_REV3,
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.unit = {{
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.id = 0x22,
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.type = SAA7164_UNIT_EEPROM,
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.name = "4K EEPROM",
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.i2c_bus_nr = SAA7164_I2C_BUS_0,
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.i2c_bus_addr = 0xa0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x04,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x07,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-1 (TOP)",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x32 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x08,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-1 (QAM)",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x34 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x1e,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x20,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-2 (TOP)",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x32 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x23,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-2 (QAM)",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x34 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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} },
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},
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[SAA7164_BOARD_HAUPPAUGE_HVR2250_2] = {
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.name = "Hauppauge WinTV-HVR2250",
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.porta = SAA7164_MPEG_DVB,
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.portb = SAA7164_MPEG_DVB,
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.portc = SAA7164_MPEG_ENCODER,
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.portd = SAA7164_MPEG_ENCODER,
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.porte = SAA7164_MPEG_VBI,
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.portf = SAA7164_MPEG_VBI,
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.porte = SAA7164_MPEG_VBI,
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.portf = SAA7164_MPEG_VBI,
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.chiprev = SAA7164_CHIP_REV3,
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.unit = {{
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.id = 0x28,
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.type = SAA7164_UNIT_EEPROM,
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.name = "4K EEPROM",
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.i2c_bus_nr = SAA7164_I2C_BUS_0,
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.i2c_bus_addr = 0xa0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x04,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x07,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-1 (TOP)",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x32 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x08,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-1 (QAM)",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x34 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x24,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x26,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-2 (TOP)",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x32 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x29,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-2 (QAM)",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x34 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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} },
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},
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[SAA7164_BOARD_HAUPPAUGE_HVR2250_3] = {
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.name = "Hauppauge WinTV-HVR2250",
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.porta = SAA7164_MPEG_DVB,
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.portb = SAA7164_MPEG_DVB,
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.portc = SAA7164_MPEG_ENCODER,
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.portd = SAA7164_MPEG_ENCODER,
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.porte = SAA7164_MPEG_VBI,
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.portf = SAA7164_MPEG_VBI,
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.chiprev = SAA7164_CHIP_REV3,
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.unit = {{
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.id = 0x26,
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.type = SAA7164_UNIT_EEPROM,
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.name = "4K EEPROM",
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.i2c_bus_nr = SAA7164_I2C_BUS_0,
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.i2c_bus_addr = 0xa0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x04,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-1",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x07,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-1 (TOP)",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x32 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x08,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-1 (QAM)",
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.i2c_bus_nr = SAA7164_I2C_BUS_1,
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.i2c_bus_addr = 0x34 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x22,
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.type = SAA7164_UNIT_TUNER,
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.name = "TDA18271-2",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0xc0 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x24,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-2 (TOP)",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x32 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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}, {
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.id = 0x27,
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.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
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.name = "CX24228/S5H1411-2 (QAM)",
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.i2c_bus_nr = SAA7164_I2C_BUS_2,
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.i2c_bus_addr = 0x34 >> 1,
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.i2c_reg_len = REGLEN_8bit,
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} },
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},
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};
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const unsigned int saa7164_bcount = ARRAY_SIZE(saa7164_boards);
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/* ------------------------------------------------------------------ */
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/* PCI subsystem IDs */
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struct saa7164_subid saa7164_subids[] = {
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{
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.subvendor = 0x0070,
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.subdevice = 0x8880,
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.card = SAA7164_BOARD_HAUPPAUGE_HVR2250,
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}, {
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.subvendor = 0x0070,
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.subdevice = 0x8810,
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.card = SAA7164_BOARD_HAUPPAUGE_HVR2250,
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}, {
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.subvendor = 0x0070,
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.subdevice = 0x8980,
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.card = SAA7164_BOARD_HAUPPAUGE_HVR2200,
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}, {
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.subvendor = 0x0070,
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.subdevice = 0x8900,
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.card = SAA7164_BOARD_HAUPPAUGE_HVR2200_2,
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}, {
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.subvendor = 0x0070,
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.subdevice = 0x8901,
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.card = SAA7164_BOARD_HAUPPAUGE_HVR2200_3,
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}, {
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.subvendor = 0x0070,
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.subdevice = 0x88A1,
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.card = SAA7164_BOARD_HAUPPAUGE_HVR2250_3,
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}, {
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.subvendor = 0x0070,
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.subdevice = 0x8891,
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.card = SAA7164_BOARD_HAUPPAUGE_HVR2250_2,
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}, {
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.subvendor = 0x0070,
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.subdevice = 0x8851,
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.card = SAA7164_BOARD_HAUPPAUGE_HVR2250_2,
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},
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};
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const unsigned int saa7164_idcount = ARRAY_SIZE(saa7164_subids);
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void saa7164_card_list(struct saa7164_dev *dev)
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{
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int i;
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if (0 == dev->pci->subsystem_vendor &&
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0 == dev->pci->subsystem_device) {
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printk(KERN_ERR
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"%s: Board has no valid PCIe Subsystem ID and can't\n"
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"%s: be autodetected. Pass card=<n> insmod option to\n"
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"%s: workaround that. Send complaints to the vendor\n"
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"%s: of the TV card. Best regards,\n"
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"%s: -- tux\n",
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dev->name, dev->name, dev->name, dev->name, dev->name);
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} else {
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printk(KERN_ERR
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"%s: Your board isn't known (yet) to the driver.\n"
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"%s: Try to pick one of the existing card configs via\n"
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"%s: card=<n> insmod option. Updating to the latest\n"
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"%s: version might help as well.\n",
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dev->name, dev->name, dev->name, dev->name);
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}
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printk(KERN_ERR "%s: Here are valid choices for the card=<n> insmod "
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"option:\n", dev->name);
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for (i = 0; i < saa7164_bcount; i++)
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printk(KERN_ERR "%s: card=%d -> %s\n",
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dev->name, i, saa7164_boards[i].name);
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}
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/* TODO: clean this define up into the -cards.c structs */
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#define PCIEBRIDGE_UNITID 2
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void saa7164_gpio_setup(struct saa7164_dev *dev)
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{
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switch (dev->board) {
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case SAA7164_BOARD_HAUPPAUGE_HVR2200:
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case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
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case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
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case SAA7164_BOARD_HAUPPAUGE_HVR2250:
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case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
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case SAA7164_BOARD_HAUPPAUGE_HVR2250_3:
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/*
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GPIO 2: s5h1411 / tda10048-1 demod reset
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GPIO 3: s5h1411 / tda10048-2 demod reset
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GPIO 7: IRBlaster Zilog reset
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*/
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/* Reset parts by going in and out of reset */
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saa7164_api_clear_gpiobit(dev, PCIEBRIDGE_UNITID, 2);
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saa7164_api_clear_gpiobit(dev, PCIEBRIDGE_UNITID, 3);
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msleep(20);
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saa7164_api_set_gpiobit(dev, PCIEBRIDGE_UNITID, 2);
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saa7164_api_set_gpiobit(dev, PCIEBRIDGE_UNITID, 3);
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break;
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}
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}
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static void hauppauge_eeprom(struct saa7164_dev *dev, u8 *eeprom_data)
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{
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struct tveeprom tv;
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/* TODO: Assumption: eeprom on bus 0 */
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tveeprom_hauppauge_analog(&dev->i2c_bus[0].i2c_client, &tv,
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eeprom_data);
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/* Make sure we support the board model */
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switch (tv.model) {
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case 88001:
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/* Development board - Limit circulation */
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/* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
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* ATSC/QAM (TDA18271/S5H1411) and basic analog, no IR, FM */
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case 88021:
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/* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
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* ATSC/QAM (TDA18271/S5H1411) and basic analog, MCE CIR, FM */
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break;
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case 88041:
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/* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
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* ATSC/QAM (TDA18271/S5H1411) and basic analog, no IR, FM */
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break;
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case 88061:
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/* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
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* ATSC/QAM (TDA18271/S5H1411) and basic analog, FM */
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break;
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case 89519:
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case 89609:
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/* WinTV-HVR2200 (PCIe, Retail, full-height)
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* DVB-T (TDA18271/TDA10048) and basic analog, no IR */
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break;
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case 89619:
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/* WinTV-HVR2200 (PCIe, Retail, half-height)
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* DVB-T (TDA18271/TDA10048) and basic analog, no IR */
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break;
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default:
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printk(KERN_ERR "%s: Warning: Unknown Hauppauge model #%d\n",
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dev->name, tv.model);
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break;
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}
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printk(KERN_INFO "%s: Hauppauge eeprom: model=%d\n", dev->name,
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tv.model);
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}
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void saa7164_card_setup(struct saa7164_dev *dev)
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{
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static u8 eeprom[256];
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if (dev->i2c_bus[0].i2c_rc == 0) {
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if (saa7164_api_read_eeprom(dev, &eeprom[0],
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sizeof(eeprom)) < 0)
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return;
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}
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switch (dev->board) {
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case SAA7164_BOARD_HAUPPAUGE_HVR2200:
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case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
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case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
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case SAA7164_BOARD_HAUPPAUGE_HVR2250:
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case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
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case SAA7164_BOARD_HAUPPAUGE_HVR2250_3:
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hauppauge_eeprom(dev, &eeprom[0]);
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break;
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}
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}
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/* With most other drivers, the kernel expects to communicate with subdrivers
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* through i2c. This bridge does not allow that, it does not expose any direct
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* access to I2C. Instead we have to communicate through the device f/w for
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* register access to 'processing units'. Each unit has a unique
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* id, regardless of how the physical implementation occurs across
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* the three physical i2c busses. The being said if we want leverge of
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* the existing kernel drivers for tuners and demods we have to 'speak i2c',
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* to this bridge implements 3 virtual i2c buses. This is a helper function
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* for those.
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*
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* Description: Translate the kernels notion of an i2c address and bus into
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* the appropriate unitid.
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*/
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int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr)
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{
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/* For a given bus and i2c device address, return the saa7164 unique
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* unitid. < 0 on error */
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struct saa7164_dev *dev = bus->dev;
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struct saa7164_unit *unit;
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int i;
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for (i = 0; i < SAA7164_MAX_UNITS; i++) {
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unit = &saa7164_boards[dev->board].unit[i];
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if (unit->type == SAA7164_UNIT_UNDEFINED)
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continue;
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if ((bus->nr == unit->i2c_bus_nr) &&
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(addr == unit->i2c_bus_addr))
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return unit->id;
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}
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return -1;
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}
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|
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/* The 7164 API needs to know the i2c register length in advance.
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* this is a helper function. Based on a specific chip addr and bus return the
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* reg length.
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*/
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int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr)
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{
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/* For a given bus and i2c device address, return the
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* saa7164 registry address width. < 0 on error
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*/
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struct saa7164_dev *dev = bus->dev;
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struct saa7164_unit *unit;
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int i;
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for (i = 0; i < SAA7164_MAX_UNITS; i++) {
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unit = &saa7164_boards[dev->board].unit[i];
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if (unit->type == SAA7164_UNIT_UNDEFINED)
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continue;
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if ((bus->nr == unit->i2c_bus_nr) &&
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(addr == unit->i2c_bus_addr))
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return unit->i2c_reg_len;
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}
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return -1;
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}
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/* TODO: implement a 'findeeprom' functio like the above and fix any other
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* eeprom related todo's in -api.c.
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*/
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/* Translate a unitid into a x readable device name, for display purposes. */
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char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid)
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{
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char *undefed = "UNDEFINED";
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char *bridge = "BRIDGE";
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struct saa7164_unit *unit;
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int i;
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|
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if (unitid == 0)
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return bridge;
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for (i = 0; i < SAA7164_MAX_UNITS; i++) {
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unit = &saa7164_boards[dev->board].unit[i];
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if (unit->type == SAA7164_UNIT_UNDEFINED)
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continue;
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if (unitid == unit->id)
|
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return unit->name;
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}
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|
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return undefed;
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}
|
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