drivers/media/video/cx25821/cx25821-cards.c

   1 /*
   2  *  Driver for the Conexant CX25821 PCIe bridge
   3  *
   4  *  Copyright (C) 2009 Conexant Systems Inc.
   5  *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
   6  *      Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  25
  26 #include <linux/init.h>
  27 #include <linux/module.h>
  28 #include <linux/pci.h>
  29 #include <linux/delay.h>
  30 #include <media/cx25840.h>
  31
  32 #include "cx25821.h"
  33 #include "tuner-xc2028.h"
  34
  35 /* board config info */
  36
  37 struct cx25821_board cx25821_boards[] = {
  38         [UNKNOWN_BOARD] = {
  39                 .name = "UNKNOWN/GENERIC",
  40                 /* Ensure safe default for unknown boards */
  41                 .clk_freq = 0,
  42         },
  43
  44         [CX25821_BOARD] = {
  45                 .name = "CX25821",
  46                 .portb = CX25821_RAW,
  47                 .portc = CX25821_264,
  48                 .input[0].type = CX25821_VMUX_COMPOSITE,
  49         },
  50
  51 };
  52
  53 const unsigned int cx25821_bcount = ARRAY_SIZE(cx25821_boards);
  54
  55 struct cx25821_subid cx25821_subids[] = {
  56         {
  57                 .subvendor = 0x14f1,
  58                 .subdevice = 0x0920,
  59                 .card = CX25821_BOARD,
  60         },
  61 };
  62
  63 void cx25821_card_setup(struct cx25821_dev *dev)
  64 {
  65         static u8 eeprom[256];
  66
  67         if (dev->i2c_bus[0].i2c_rc == 0) {
  68                 dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1;
  69                 tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom,
  70                               sizeof(eeprom));
  71         }
  72 }