err.no Git - linux-2.6/blob - drivers/media/video/cx23885/cx23885-dvb.c

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2006 Steven Toth <stoth@hauppauge.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 #include <linux/module.h>
  23 #include <linux/init.h>
  24 #include <linux/device.h>
  25 #include <linux/fs.h>
  26 #include <linux/kthread.h>
  27 #include <linux/file.h>
  28 #include <linux/suspend.h>
  29
  30 #include "cx23885.h"
  31 #include "dvb-pll.h"
  32 #include <media/v4l2-common.h>
  33
  34 #include "s5h1409.h"
  35 #include "mt2131.h"
  36
  37 static unsigned int debug = 2;
  38
  39 #define dprintk(level,fmt, arg...)      if (debug >= level) \
  40         printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg)
  41
  42 /* ------------------------------------------------------------------ */
  43
  44 static int dvb_buf_setup(struct videobuf_queue *q,
  45                          unsigned int *count, unsigned int *size)
  46 {
  47         struct cx23885_tsport *port = q->priv_data;
  48
  49         port->ts_packet_size  = 188 * 4;
  50         port->ts_packet_count = 32;
  51
  52         *size  = port->ts_packet_size * port->ts_packet_count;
  53         *count = 32;
  54         return 0;
  55 }
  56
  57 static int dvb_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
  58                            enum v4l2_field field)
  59 {
  60         struct cx23885_tsport *port = q->priv_data;
  61         return cx23885_buf_prepare(q, port, (struct cx23885_buffer*)vb,field);
  62 }
  63
  64 static void dvb_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
  65 {
  66         struct cx23885_tsport *port = q->priv_data;
  67         cx23885_buf_queue(port, (struct cx23885_buffer*)vb);
  68 }
  69
  70 static void dvb_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
  71 {
  72         cx23885_free_buffer(q, (struct cx23885_buffer*)vb);
  73 }
  74
  75 static struct videobuf_queue_ops dvb_qops = {
  76         .buf_setup    = dvb_buf_setup,
  77         .buf_prepare  = dvb_buf_prepare,
  78         .buf_queue    = dvb_buf_queue,
  79         .buf_release  = dvb_buf_release,
  80 };
  81
  82 static struct s5h1409_config hauppauge_hvr1800lp_config = {
  83         .demod_address = 0x32 >> 1,
  84         .output_mode   = S5H1409_SERIAL_OUTPUT,
  85         .gpio          = S5H1409_GPIO_OFF,
  86         .if_freq       = 44000,
  87         .inversion     = S5H1409_INVERSION_OFF
  88 };
  89
  90 static struct s5h1409_config hauppauge_hvr1800_config = {
  91         .demod_address = 0x32 >> 1,
  92         .output_mode   = S5H1409_SERIAL_OUTPUT,
  93         .gpio          = S5H1409_GPIO_ON,
  94         .if_freq       = 44000,
  95         .inversion     = S5H1409_INVERSION_OFF
  96 };
  97
  98
  99 static struct mt2131_config hauppauge_hvr1800lp_rev2_tunerconfig = {
 100         0x61
 101 };
 102
 103 static struct mt2131_config hauppauge_hvr1800_tunerconfig = {
 104         0x61
 105 };
 106
 107 static int dvb_register(struct cx23885_tsport *port)
 108 {
 109         struct cx23885_dev *dev = port->dev;
 110
 111         /* init struct videobuf_dvb */
 112         port->dvb.name = dev->name;
 113
 114         /* init frontend */
 115         switch (dev->board) {
 116         case CX23885_BOARD_HAUPPAUGE_HVR1800lp:
 117                 port->dvb.frontend = dvb_attach(s5h1409_attach,
 118                                                &hauppauge_hvr1800lp_config,
 119                                                &dev->i2c_bus[0].i2c_adap);
 120                 if (port->dvb.frontend != NULL) {
 121                         dvb_attach(mt2131_attach,
 122                                 port->dvb.frontend,
 123                                 &dev->i2c_bus[0].i2c_adap,
 124                                 &hauppauge_hvr1800lp_rev2_tunerconfig,
 125                                 0);
 126                 }
 127                 break;
 128         case CX23885_BOARD_HAUPPAUGE_HVR1800:
 129                 port->dvb.frontend = dvb_attach(s5h1409_attach,
 130                                                &hauppauge_hvr1800_config,
 131                                                &dev->i2c_bus[0].i2c_adap);
 132                 if (port->dvb.frontend != NULL) {
 133                         dvb_attach(mt2131_attach,
 134                                 port->dvb.frontend,
 135                                 &dev->i2c_bus[0].i2c_adap,
 136                                 &hauppauge_hvr1800_tunerconfig,
 137                                 0);
 138                 }
 139                 break;
 140         default:
 141                 printk("%s: The frontend of your DVB/ATSC card isn't supported yet\n",
 142                        dev->name);
 143                 break;
 144         }
 145         if (NULL == port->dvb.frontend) {
 146                 printk("%s: frontend initialization failed\n", dev->name);
 147                 return -1;
 148         }
 149
 150         /* Put the analog decoder in standby to keep it quiet */
 151         cx23885_call_i2c_clients (&dev->i2c_bus[0], TUNER_SET_STANDBY, NULL);
 152
 153         /* register everything */
 154         return videobuf_dvb_register(&port->dvb, THIS_MODULE, port, &dev->pci->dev);
 155 }
 156
 157 int cx23885_dvb_register(struct cx23885_tsport *port)
 158 {
 159         struct cx23885_dev *dev = port->dev;
 160         int err;
 161
 162         dprintk( 1, "%s\n", __FUNCTION__);
 163         dprintk( 1, " ->being probed by Card=%d Name=%s, PCI %02x:%02x\n",
 164                 dev->board,
 165                 dev->name,
 166                 dev->pci_bus,
 167                 dev->pci_slot);
 168
 169         err = -ENODEV;
 170         if (!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB))
 171                 goto fail_core;
 172
 173         /* dvb stuff */
 174         printk("%s: cx23885 based dvb card\n", dev->name);
 175         videobuf_queue_init(
 176                 &port->dvb.dvbq,
 177                 &dvb_qops,
 178                 dev->pci,
 179                 &port->slock,
 180                 V4L2_BUF_TYPE_VIDEO_CAPTURE,
 181                 V4L2_FIELD_TOP,
 182                 sizeof(struct cx23885_buffer),
 183                 port);
 184         err = dvb_register(port);
 185         if (err != 0)
 186                 printk("%s() dvb_register failed err = %d\n", __FUNCTION__, err);
 187
 188  fail_core:
 189         return err;
 190 }
 191
 192 int cx23885_dvb_unregister(struct cx23885_tsport *port)
 193 {
 194         /* dvb */
 195         if(port->dvb.frontend)
 196                 videobuf_dvb_unregister(&port->dvb);
 197
 198         return 0;
 199 }