drivers/media/video/mxb.c

   1 /*
   2     mxb - v4l2 driver for the Multimedia eXtension Board
   3
   4     Copyright (C) 1998-2006 Michael Hunold <michael@mihu.de>
   5
   6     Visit http://www.themm.net/~mihu/linux/saa7146/mxb.html
   7     for further details about this card.
   8
   9     This program is free software; you can redistribute it and/or modify
  10     it under the terms of the GNU General Public License as published by
  11     the Free Software Foundation; either version 2 of the License, or
  12     (at your option) any later version.
  13
  14     This program is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  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 #define DEBUG_VARIABLE debug
  27
  28 #include <media/saa7146_vv.h>
  29 #include <media/tuner.h>
  30 #include <media/v4l2-common.h>
  31 #include <media/saa7115.h>
  32 #include <linux/module.h>
  33
  34 #include "tea6415c.h"
  35 #include "tea6420.h"
  36
  37 #define MXB_AUDIOS      6
  38
  39 #define I2C_SAA7111A  0x24
  40 #define I2C_TDA9840   0x42
  41 #define I2C_TEA6415C  0x43
  42 #define I2C_TEA6420_1 0x4c
  43 #define I2C_TEA6420_2 0x4d
  44 #define I2C_TUNER     0x60
  45
  46 #define MXB_BOARD_CAN_DO_VBI(dev)   (dev->revision != 0)
  47
  48 /* global variable */
  49 static int mxb_num;
  50
  51 /* initial frequence the tuner will be tuned to.
  52    in verden (lower saxony, germany) 4148 is a
  53    channel called "phoenix" */
  54 static int freq = 4148;
  55 module_param(freq, int, 0644);
  56 MODULE_PARM_DESC(freq, "initial frequency the tuner will be tuned to while setup");
  57
  58 static int debug;
  59 module_param(debug, int, 0644);
  60 MODULE_PARM_DESC(debug, "Turn on/off device debugging (default:off).");
  61
  62 #define MXB_INPUTS 4
  63 enum { TUNER, AUX1, AUX3, AUX3_YC };
  64
  65 static struct v4l2_input mxb_inputs[MXB_INPUTS] = {
  66         { TUNER,   "Tuner",          V4L2_INPUT_TYPE_TUNER,  0x3f, 0,
  67                 V4L2_STD_PAL_BG | V4L2_STD_PAL_I, 0, V4L2_IN_CAP_STD },
  68         { AUX1,    "AUX1",           V4L2_INPUT_TYPE_CAMERA, 0x3f, 0,
  69                 V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  70         { AUX3,    "AUX3 Composite", V4L2_INPUT_TYPE_CAMERA, 0x3f, 0,
  71                 V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  72         { AUX3_YC, "AUX3 S-Video",   V4L2_INPUT_TYPE_CAMERA, 0x3f, 0,
  73                 V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  74 };
  75
  76 /* this array holds the information, which port of the saa7146 each
  77    input actually uses. the mxb uses port 0 for every input */
  78 static struct {
  79         int hps_source;
  80         int hps_sync;
  81 } input_port_selection[MXB_INPUTS] = {
  82         { SAA7146_HPS_SOURCE_PORT_A, SAA7146_HPS_SYNC_PORT_A },
  83         { SAA7146_HPS_SOURCE_PORT_A, SAA7146_HPS_SYNC_PORT_A },
  84         { SAA7146_HPS_SOURCE_PORT_A, SAA7146_HPS_SYNC_PORT_A },
  85         { SAA7146_HPS_SOURCE_PORT_A, SAA7146_HPS_SYNC_PORT_A },
  86 };
  87
  88 /* this array holds the information of the audio source (mxb_audios),
  89    which has to be switched corresponding to the video source (mxb_channels) */
  90 static int video_audio_connect[MXB_INPUTS] =
  91         { 0, 1, 3, 3 };
  92
  93 struct mxb_routing {
  94         u32 input;
  95         u32 output;
  96 };
  97
  98 /* these are the available audio sources, which can switched
  99    to the line- and cd-output individually */
 100 static struct v4l2_audio mxb_audios[MXB_AUDIOS] = {
 101             {
 102                 .index  = 0,
 103                 .name   = "Tuner",
 104                 .capability = V4L2_AUDCAP_STEREO,
 105         } , {
 106                 .index  = 1,
 107                 .name   = "AUX1",
 108                 .capability = V4L2_AUDCAP_STEREO,
 109         } , {
 110                 .index  = 2,
 111                 .name   = "AUX2",
 112                 .capability = V4L2_AUDCAP_STEREO,
 113         } , {
 114                 .index  = 3,
 115                 .name   = "AUX3",
 116                 .capability = V4L2_AUDCAP_STEREO,
 117         } , {
 118                 .index  = 4,
 119                 .name   = "Radio (X9)",
 120                 .capability = V4L2_AUDCAP_STEREO,
 121         } , {
 122                 .index  = 5,
 123                 .name   = "CD-ROM (X10)",
 124                 .capability = V4L2_AUDCAP_STEREO,
 125         }
 126 };
 127
 128 /* These are the necessary input-output-pins for bringing one audio source
 129    (see above) to the CD-output. Note that gain is set to 0 in this table. */
 130 static struct mxb_routing TEA6420_cd[MXB_AUDIOS + 1][2] = {
 131         { { 1, 1 }, { 1, 1 } }, /* Tuner */
 132         { { 5, 1 }, { 6, 1 } }, /* AUX 1 */
 133         { { 4, 1 }, { 6, 1 } }, /* AUX 2 */
 134         { { 3, 1 }, { 6, 1 } }, /* AUX 3 */
 135         { { 1, 1 }, { 3, 1 } }, /* Radio */
 136         { { 1, 1 }, { 2, 1 } }, /* CD-Rom */
 137         { { 6, 1 }, { 6, 1 } }  /* Mute */
 138 };
 139
 140 /* These are the necessary input-output-pins for bringing one audio source
 141    (see above) to the line-output. Note that gain is set to 0 in this table. */
 142 static struct mxb_routing TEA6420_line[MXB_AUDIOS + 1][2] = {
 143         { { 2, 3 }, { 1, 2 } },
 144         { { 5, 3 }, { 6, 2 } },
 145         { { 4, 3 }, { 6, 2 } },
 146         { { 3, 3 }, { 6, 2 } },
 147         { { 2, 3 }, { 3, 2 } },
 148         { { 2, 3 }, { 2, 2 } },
 149         { { 6, 3 }, { 6, 2 } }  /* Mute */
 150 };
 151
 152 struct mxb
 153 {
 154         struct video_device     *video_dev;
 155         struct video_device     *vbi_dev;
 156
 157         struct i2c_adapter      i2c_adapter;
 158
 159         struct v4l2_subdev      *saa7111a;
 160         struct v4l2_subdev      *tda9840;
 161         struct v4l2_subdev      *tea6415c;
 162         struct v4l2_subdev      *tuner;
 163         struct v4l2_subdev      *tea6420_1;
 164         struct v4l2_subdev      *tea6420_2;
 165
 166         int     cur_mode;       /* current audio mode (mono, stereo, ...) */
 167         int     cur_input;      /* current input */
 168         int     cur_audinput;   /* current audio input */
 169         int     cur_mute;       /* current mute status */
 170         struct v4l2_frequency   cur_freq;       /* current frequency the tuner is tuned to */
 171 };
 172
 173 #define saa7111a_call(mxb, o, f, args...) \
 174         v4l2_subdev_call(mxb->saa7111a, o, f, ##args)
 175 #define tda9840_call(mxb, o, f, args...) \
 176         v4l2_subdev_call(mxb->tda9840, o, f, ##args)
 177 #define tea6415c_call(mxb, o, f, args...) \
 178         v4l2_subdev_call(mxb->tea6415c, o, f, ##args)
 179 #define tuner_call(mxb, o, f, args...) \
 180         v4l2_subdev_call(mxb->tuner, o, f, ##args)
 181 #define call_all(dev, o, f, args...) \
 182         v4l2_device_call_until_err(&dev->v4l2_dev, 0, o, f, ##args)
 183
 184 static void mxb_update_audmode(struct mxb *mxb)
 185 {
 186         struct v4l2_tuner t = {
 187                 .audmode = mxb->cur_mode,
 188         };
 189
 190         tda9840_call(mxb, tuner, s_tuner, &t);
 191 }
 192
 193 static inline void tea6420_route(struct mxb *mxb, int idx)
 194 {
 195         v4l2_subdev_call(mxb->tea6420_1, audio, s_routing,
 196                 TEA6420_cd[idx][0].input, TEA6420_cd[idx][0].output, 0);
 197         v4l2_subdev_call(mxb->tea6420_2, audio, s_routing,
 198                 TEA6420_cd[idx][1].input, TEA6420_cd[idx][1].output, 0);
 199         v4l2_subdev_call(mxb->tea6420_1, audio, s_routing,
 200                 TEA6420_line[idx][0].input, TEA6420_line[idx][0].output, 0);
 201         v4l2_subdev_call(mxb->tea6420_2, audio, s_routing,
 202                 TEA6420_line[idx][1].input, TEA6420_line[idx][1].output, 0);
 203 }
 204
 205 static struct saa7146_extension extension;
 206
 207 static int mxb_s_ctrl(struct v4l2_ctrl *ctrl)
 208 {
 209         struct saa7146_dev *dev = container_of(ctrl->handler,
 210                                 struct saa7146_dev, ctrl_handler);
 211         struct mxb *mxb = dev->ext_priv;
 212
 213         switch (ctrl->id) {
 214         case V4L2_CID_AUDIO_MUTE:
 215                 mxb->cur_mute = ctrl->val;
 216                 /* switch the audio-source */
 217                 tea6420_route(mxb, ctrl->val ? 6 :
 218                                 video_audio_connect[mxb->cur_input]);
 219                 break;
 220         default:
 221                 return -EINVAL;
 222         }
 223         return 0;
 224 }
 225
 226 static const struct v4l2_ctrl_ops mxb_ctrl_ops = {
 227         .s_ctrl = mxb_s_ctrl,
 228 };
 229
 230 static int mxb_probe(struct saa7146_dev *dev)
 231 {
 232         struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
 233         struct mxb *mxb = NULL;
 234
 235         v4l2_ctrl_new_std(hdl, &mxb_ctrl_ops,
 236                         V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
 237         if (hdl->error)
 238                 return hdl->error;
 239         mxb = kzalloc(sizeof(struct mxb), GFP_KERNEL);
 240         if (mxb == NULL) {
 241                 DEB_D("not enough kernel memory\n");
 242                 return -ENOMEM;
 243         }
 244
 245
 246         snprintf(mxb->i2c_adapter.name, sizeof(mxb->i2c_adapter.name), "mxb%d", mxb_num);
 247
 248         saa7146_i2c_adapter_prepare(dev, &mxb->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
 249         if (i2c_add_adapter(&mxb->i2c_adapter) < 0) {
 250                 DEB_S("cannot register i2c-device. skipping.\n");
 251                 kfree(mxb);
 252                 return -EFAULT;
 253         }
 254
 255         mxb->saa7111a = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
 256                         "saa7111", I2C_SAA7111A, NULL);
 257         mxb->tea6420_1 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
 258                         "tea6420", I2C_TEA6420_1, NULL);
 259         mxb->tea6420_2 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
 260                         "tea6420", I2C_TEA6420_2, NULL);
 261         mxb->tea6415c = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
 262                         "tea6415c", I2C_TEA6415C, NULL);
 263         mxb->tda9840 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
 264                         "tda9840", I2C_TDA9840, NULL);
 265         mxb->tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
 266                         "tuner", I2C_TUNER, NULL);
 267
 268         /* check if all devices are present */
 269         if (!mxb->tea6420_1 || !mxb->tea6420_2 || !mxb->tea6415c ||
 270             !mxb->tda9840 || !mxb->saa7111a || !mxb->tuner) {
 271                 pr_err("did not find all i2c devices. aborting\n");
 272                 i2c_del_adapter(&mxb->i2c_adapter);
 273                 kfree(mxb);
 274                 return -ENODEV;
 275         }
 276
 277         /* all devices are present, probe was successful */
 278
 279         /* we store the pointer in our private data field */
 280         dev->ext_priv = mxb;
 281
 282         v4l2_ctrl_handler_setup(hdl);
 283
 284         return 0;
 285 }
 286
 287 /* some init data for the saa7740, the so-called 'sound arena module'.
 288    there are no specs available, so we simply use some init values */
 289 static struct {
 290         int     length;
 291         char    data[9];
 292 } mxb_saa7740_init[] = {
 293         { 3, { 0x80, 0x00, 0x00 } },{ 3, { 0x80, 0x89, 0x00 } },
 294         { 3, { 0x80, 0xb0, 0x0a } },{ 3, { 0x00, 0x00, 0x00 } },
 295         { 3, { 0x49, 0x00, 0x00 } },{ 3, { 0x4a, 0x00, 0x00 } },
 296         { 3, { 0x4b, 0x00, 0x00 } },{ 3, { 0x4c, 0x00, 0x00 } },
 297         { 3, { 0x4d, 0x00, 0x00 } },{ 3, { 0x4e, 0x00, 0x00 } },
 298         { 3, { 0x4f, 0x00, 0x00 } },{ 3, { 0x50, 0x00, 0x00 } },
 299         { 3, { 0x51, 0x00, 0x00 } },{ 3, { 0x52, 0x00, 0x00 } },
 300         { 3, { 0x53, 0x00, 0x00 } },{ 3, { 0x54, 0x00, 0x00 } },
 301         { 3, { 0x55, 0x00, 0x00 } },{ 3, { 0x56, 0x00, 0x00 } },
 302         { 3, { 0x57, 0x00, 0x00 } },{ 3, { 0x58, 0x00, 0x00 } },
 303         { 3, { 0x59, 0x00, 0x00 } },{ 3, { 0x5a, 0x00, 0x00 } },
 304         { 3, { 0x5b, 0x00, 0x00 } },{ 3, { 0x5c, 0x00, 0x00 } },
 305         { 3, { 0x5d, 0x00, 0x00 } },{ 3, { 0x5e, 0x00, 0x00 } },
 306         { 3, { 0x5f, 0x00, 0x00 } },{ 3, { 0x60, 0x00, 0x00 } },
 307         { 3, { 0x61, 0x00, 0x00 } },{ 3, { 0x62, 0x00, 0x00 } },
 308         { 3, { 0x63, 0x00, 0x00 } },{ 3, { 0x64, 0x00, 0x00 } },
 309         { 3, { 0x65, 0x00, 0x00 } },{ 3, { 0x66, 0x00, 0x00 } },
 310         { 3, { 0x67, 0x00, 0x00 } },{ 3, { 0x68, 0x00, 0x00 } },
 311         { 3, { 0x69, 0x00, 0x00 } },{ 3, { 0x6a, 0x00, 0x00 } },
 312         { 3, { 0x6b, 0x00, 0x00 } },{ 3, { 0x6c, 0x00, 0x00 } },
 313         { 3, { 0x6d, 0x00, 0x00 } },{ 3, { 0x6e, 0x00, 0x00 } },
 314         { 3, { 0x6f, 0x00, 0x00 } },{ 3, { 0x70, 0x00, 0x00 } },
 315         { 3, { 0x71, 0x00, 0x00 } },{ 3, { 0x72, 0x00, 0x00 } },
 316         { 3, { 0x73, 0x00, 0x00 } },{ 3, { 0x74, 0x00, 0x00 } },
 317         { 3, { 0x75, 0x00, 0x00 } },{ 3, { 0x76, 0x00, 0x00 } },
 318         { 3, { 0x77, 0x00, 0x00 } },{ 3, { 0x41, 0x00, 0x42 } },
 319         { 3, { 0x42, 0x10, 0x42 } },{ 3, { 0x43, 0x20, 0x42 } },
 320         { 3, { 0x44, 0x30, 0x42 } },{ 3, { 0x45, 0x00, 0x01 } },
 321         { 3, { 0x46, 0x00, 0x01 } },{ 3, { 0x47, 0x00, 0x01 } },
 322         { 3, { 0x48, 0x00, 0x01 } },
 323         { 9, { 0x01, 0x03, 0xc5, 0x5c, 0x7a, 0x85, 0x01, 0x00, 0x54 } },
 324         { 9, { 0x21, 0x03, 0xc5, 0x5c, 0x7a, 0x85, 0x01, 0x00, 0x54 } },
 325         { 9, { 0x09, 0x0b, 0xb4, 0x6b, 0x74, 0x85, 0x95, 0x00, 0x34 } },
 326         { 9, { 0x29, 0x0b, 0xb4, 0x6b, 0x74, 0x85, 0x95, 0x00, 0x34 } },
 327         { 9, { 0x11, 0x17, 0x43, 0x62, 0x68, 0x89, 0xd1, 0xff, 0xb0 } },
 328         { 9, { 0x31, 0x17, 0x43, 0x62, 0x68, 0x89, 0xd1, 0xff, 0xb0 } },
 329         { 9, { 0x19, 0x20, 0x62, 0x51, 0x5a, 0x95, 0x19, 0x01, 0x50 } },
 330         { 9, { 0x39, 0x20, 0x62, 0x51, 0x5a, 0x95, 0x19, 0x01, 0x50 } },
 331         { 9, { 0x05, 0x3e, 0xd2, 0x69, 0x4e, 0x9a, 0x51, 0x00, 0xf0 } },
 332         { 9, { 0x25, 0x3e, 0xd2, 0x69, 0x4e, 0x9a, 0x51, 0x00, 0xf0 } },
 333         { 9, { 0x0d, 0x3d, 0xa1, 0x40, 0x7d, 0x9f, 0x29, 0xfe, 0x14 } },
 334         { 9, { 0x2d, 0x3d, 0xa1, 0x40, 0x7d, 0x9f, 0x29, 0xfe, 0x14 } },
 335         { 9, { 0x15, 0x73, 0xa1, 0x50, 0x5d, 0xa6, 0xf5, 0xfe, 0x38 } },
 336         { 9, { 0x35, 0x73, 0xa1, 0x50, 0x5d, 0xa6, 0xf5, 0xfe, 0x38 } },
 337         { 9, { 0x1d, 0xed, 0xd0, 0x68, 0x29, 0xb4, 0xe1, 0x00, 0xb8 } },
 338         { 9, { 0x3d, 0xed, 0xd0, 0x68, 0x29, 0xb4, 0xe1, 0x00, 0xb8 } },
 339         { 3, { 0x80, 0xb3, 0x0a } },
 340         {-1, { 0 } }
 341 };
 342
 343 /* bring hardware to a sane state. this has to be done, just in case someone
 344    wants to capture from this device before it has been properly initialized.
 345    the capture engine would badly fail, because no valid signal arrives on the
 346    saa7146, thus leading to timeouts and stuff. */
 347 static int mxb_init_done(struct saa7146_dev* dev)
 348 {
 349         struct mxb* mxb = (struct mxb*)dev->ext_priv;
 350         struct i2c_msg msg;
 351         struct tuner_setup tun_setup;
 352         v4l2_std_id std = V4L2_STD_PAL_BG;
 353
 354         int i = 0, err = 0;
 355
 356         /* mute audio on tea6420s */
 357         tea6420_route(mxb, 6);
 358
 359         /* select video mode in saa7111a */
 360         saa7111a_call(mxb, core, s_std, std);
 361
 362         /* select tuner-output on saa7111a */
 363         i = 0;
 364         saa7111a_call(mxb, video, s_routing, SAA7115_COMPOSITE0,
 365                 SAA7111_FMT_CCIR, 0);
 366
 367         /* select a tuner type */
 368         tun_setup.mode_mask = T_ANALOG_TV;
 369         tun_setup.addr = ADDR_UNSET;
 370         tun_setup.type = TUNER_PHILIPS_PAL;
 371         tuner_call(mxb, tuner, s_type_addr, &tun_setup);
 372         /* tune in some frequency on tuner */
 373         mxb->cur_freq.tuner = 0;
 374         mxb->cur_freq.type = V4L2_TUNER_ANALOG_TV;
 375         mxb->cur_freq.frequency = freq;
 376         tuner_call(mxb, tuner, s_frequency, &mxb->cur_freq);
 377
 378         /* set a default video standard */
 379         /* These two gpio calls set the GPIO pins that control the tda9820 */
 380         saa7146_write(dev, GPIO_CTRL, 0x00404050);
 381         saa7111a_call(mxb, core, s_gpio, 1);
 382         saa7111a_call(mxb, core, s_std, std);
 383         tuner_call(mxb, core, s_std, std);
 384
 385         /* switch to tuner-channel on tea6415c */
 386         tea6415c_call(mxb, video, s_routing, 3, 17, 0);
 387
 388         /* select tuner-output on multicable on tea6415c */
 389         tea6415c_call(mxb, video, s_routing, 3, 13, 0);
 390
 391         /* the rest for mxb */
 392         mxb->cur_input = 0;
 393         mxb->cur_audinput = video_audio_connect[mxb->cur_input];
 394         mxb->cur_mute = 1;
 395
 396         mxb->cur_mode = V4L2_TUNER_MODE_STEREO;
 397         mxb_update_audmode(mxb);
 398
 399         /* check if the saa7740 (aka 'sound arena module') is present
 400            on the mxb. if so, we must initialize it. due to lack of
 401            informations about the saa7740, the values were reverse
 402            engineered. */
 403         msg.addr = 0x1b;
 404         msg.flags = 0;
 405         msg.len = mxb_saa7740_init[0].length;
 406         msg.buf = &mxb_saa7740_init[0].data[0];
 407
 408         err = i2c_transfer(&mxb->i2c_adapter, &msg, 1);
 409         if (err == 1) {
 410                 /* the sound arena module is a pos, that's probably the reason
 411                    philips refuses to hand out a datasheet for the saa7740...
 412                    it seems to screw up the i2c bus, so we disable fast irq
 413                    based i2c transactions here and rely on the slow and safe
 414                    polling method ... */
 415                 extension.flags &= ~SAA7146_USE_I2C_IRQ;
 416                 for (i = 1; ; i++) {
 417                         if (-1 == mxb_saa7740_init[i].length)
 418                                 break;
 419
 420                         msg.len = mxb_saa7740_init[i].length;
 421                         msg.buf = &mxb_saa7740_init[i].data[0];
 422                         err = i2c_transfer(&mxb->i2c_adapter, &msg, 1);
 423                         if (err != 1) {
 424                                 DEB_D("failed to initialize 'sound arena module'\n");
 425                                 goto err;
 426                         }
 427                 }
 428                 pr_info("'sound arena module' detected\n");
 429         }
 430 err:
 431         /* the rest for saa7146: you should definitely set some basic values
 432            for the input-port handling of the saa7146. */
 433
 434         /* ext->saa has been filled by the core driver */
 435
 436         /* some stuff is done via variables */
 437         saa7146_set_hps_source_and_sync(dev, input_port_selection[mxb->cur_input].hps_source,
 438                         input_port_selection[mxb->cur_input].hps_sync);
 439
 440         /* some stuff is done via direct write to the registers */
 441
 442         /* this is ugly, but because of the fact that this is completely
 443            hardware dependend, it should be done directly... */
 444         saa7146_write(dev, DD1_STREAM_B,        0x00000000);
 445         saa7146_write(dev, DD1_INIT,            0x02000200);
 446         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 447
 448         return 0;
 449 }
 450
 451 /* interrupt-handler. this gets called when irq_mask is != 0.
 452    it must clear the interrupt-bits in irq_mask it has handled */
 453 /*
 454 void mxb_irq_bh(struct saa7146_dev* dev, u32* irq_mask)
 455 {
 456         struct mxb* mxb = (struct mxb*)dev->ext_priv;
 457 }
 458 */
 459
 460 static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
 461 {
 462         DEB_EE("VIDIOC_ENUMINPUT %d\n", i->index);
 463         if (i->index >= MXB_INPUTS)
 464                 return -EINVAL;
 465         memcpy(i, &mxb_inputs[i->index], sizeof(struct v4l2_input));
 466         return 0;
 467 }
 468
 469 static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
 470 {
 471         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 472         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 473         *i = mxb->cur_input;
 474
 475         DEB_EE("VIDIOC_G_INPUT %d\n", *i);
 476         return 0;
 477 }
 478
 479 static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 480 {
 481         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 482         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 483         int err = 0;
 484         int i = 0;
 485
 486         DEB_EE("VIDIOC_S_INPUT %d\n", input);
 487
 488         if (input >= MXB_INPUTS)
 489                 return -EINVAL;
 490
 491         mxb->cur_input = input;
 492
 493         saa7146_set_hps_source_and_sync(dev, input_port_selection[input].hps_source,
 494                         input_port_selection[input].hps_sync);
 495
 496         /* prepare switching of tea6415c and saa7111a;
 497            have a look at the 'background'-file for further informations  */
 498         switch (input) {
 499         case TUNER:
 500                 i = SAA7115_COMPOSITE0;
 501
 502                 err = tea6415c_call(mxb, video, s_routing, 3, 17, 0);
 503
 504                 /* connect tuner-output always to multicable */
 505                 if (!err)
 506                         err = tea6415c_call(mxb, video, s_routing, 3, 13, 0);
 507                 break;
 508         case AUX3_YC:
 509                 /* nothing to be done here. aux3_yc is
 510                    directly connected to the saa711a */
 511                 i = SAA7115_SVIDEO1;
 512                 break;
 513         case AUX3:
 514                 /* nothing to be done here. aux3 is
 515                    directly connected to the saa711a */
 516                 i = SAA7115_COMPOSITE1;
 517                 break;
 518         case AUX1:
 519                 i = SAA7115_COMPOSITE0;
 520                 err = tea6415c_call(mxb, video, s_routing, 1, 17, 0);
 521                 break;
 522         }
 523
 524         if (err)
 525                 return err;
 526
 527         /* switch video in saa7111a */
 528         if (saa7111a_call(mxb, video, s_routing, i, SAA7111_FMT_CCIR, 0))
 529                 pr_err("VIDIOC_S_INPUT: could not address saa7111a\n");
 530
 531         mxb->cur_audinput = video_audio_connect[input];
 532         /* switch the audio-source only if necessary */
 533         if (0 == mxb->cur_mute)
 534                 tea6420_route(mxb, mxb->cur_audinput);
 535         if (mxb->cur_audinput == 0)
 536                 mxb_update_audmode(mxb);
 537
 538         return 0;
 539 }
 540
 541 static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
 542 {
 543         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 544         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 545
 546         if (t->index) {
 547                 DEB_D("VIDIOC_G_TUNER: channel %d does not have a tuner attached\n",
 548                       t->index);
 549                 return -EINVAL;
 550         }
 551
 552         DEB_EE("VIDIOC_G_TUNER: %d\n", t->index);
 553
 554         memset(t, 0, sizeof(*t));
 555         strlcpy(t->name, "TV Tuner", sizeof(t->name));
 556         t->type = V4L2_TUNER_ANALOG_TV;
 557         t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
 558                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
 559         t->audmode = mxb->cur_mode;
 560         return call_all(dev, tuner, g_tuner, t);
 561 }
 562
 563 static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
 564 {
 565         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 566         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 567
 568         if (t->index) {
 569                 DEB_D("VIDIOC_S_TUNER: channel %d does not have a tuner attached\n",
 570                       t->index);
 571                 return -EINVAL;
 572         }
 573
 574         mxb->cur_mode = t->audmode;
 575         return call_all(dev, tuner, s_tuner, t);
 576 }
 577
 578 static int vidioc_g_frequency(struct file *file, void *fh, struct v4l2_frequency *f)
 579 {
 580         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 581         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 582
 583         if (f->tuner)
 584                 return -EINVAL;
 585         *f = mxb->cur_freq;
 586
 587         DEB_EE("VIDIOC_G_FREQ: freq:0x%08x\n", mxb->cur_freq.frequency);
 588         return 0;
 589 }
 590
 591 static int vidioc_s_frequency(struct file *file, void *fh, struct v4l2_frequency *f)
 592 {
 593         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 594         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 595         struct saa7146_vv *vv = dev->vv_data;
 596
 597         if (f->tuner)
 598                 return -EINVAL;
 599
 600         if (V4L2_TUNER_ANALOG_TV != f->type)
 601                 return -EINVAL;
 602
 603         DEB_EE("VIDIOC_S_FREQUENCY: freq:0x%08x\n", mxb->cur_freq.frequency);
 604
 605         /* tune in desired frequency */
 606         tuner_call(mxb, tuner, s_frequency, f);
 607         /* let the tuner subdev clamp the frequency to the tuner range */
 608         tuner_call(mxb, tuner, g_frequency, f);
 609         mxb->cur_freq = *f;
 610         if (mxb->cur_audinput == 0)
 611                 mxb_update_audmode(mxb);
 612
 613         if (mxb->cur_input)
 614                 return 0;
 615
 616         /* hack: changing the frequency should invalidate the vbi-counter (=> alevt) */
 617         spin_lock(&dev->slock);
 618         vv->vbi_fieldcount = 0;
 619         spin_unlock(&dev->slock);
 620
 621         return 0;
 622 }
 623
 624 static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
 625 {
 626         if (a->index >= MXB_AUDIOS)
 627                 return -EINVAL;
 628         *a = mxb_audios[a->index];
 629         return 0;
 630 }
 631
 632 static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
 633 {
 634         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 635         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 636
 637         DEB_EE("VIDIOC_G_AUDIO\n");
 638         *a = mxb_audios[mxb->cur_audinput];
 639         return 0;
 640 }
 641
 642 static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
 643 {
 644         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 645         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 646
 647         DEB_D("VIDIOC_S_AUDIO %d\n", a->index);
 648         if (mxb_inputs[mxb->cur_input].audioset & (1 << a->index)) {
 649                 if (mxb->cur_audinput != a->index) {
 650                         mxb->cur_audinput = a->index;
 651                         tea6420_route(mxb, a->index);
 652                         if (mxb->cur_audinput == 0)
 653                                 mxb_update_audmode(mxb);
 654                 }
 655                 return 0;
 656         }
 657         return -EINVAL;
 658 }
 659
 660 #ifdef CONFIG_VIDEO_ADV_DEBUG
 661 static int vidioc_g_register(struct file *file, void *fh, struct v4l2_dbg_register *reg)
 662 {
 663         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 664
 665         return call_all(dev, core, g_register, reg);
 666 }
 667
 668 static int vidioc_s_register(struct file *file, void *fh, struct v4l2_dbg_register *reg)
 669 {
 670         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 671
 672         return call_all(dev, core, s_register, reg);
 673 }
 674 #endif
 675
 676 static struct saa7146_ext_vv vv_data;
 677
 678 /* this function only gets called when the probing was successful */
 679 static int mxb_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
 680 {
 681         struct mxb *mxb;
 682
 683         DEB_EE("dev:%p\n", dev);
 684
 685         saa7146_vv_init(dev, &vv_data);
 686         if (mxb_probe(dev)) {
 687                 saa7146_vv_release(dev);
 688                 return -1;
 689         }
 690         mxb = (struct mxb *)dev->ext_priv;
 691
 692         vv_data.ops.vidioc_enum_input = vidioc_enum_input;
 693         vv_data.ops.vidioc_g_input = vidioc_g_input;
 694         vv_data.ops.vidioc_s_input = vidioc_s_input;
 695         vv_data.ops.vidioc_g_tuner = vidioc_g_tuner;
 696         vv_data.ops.vidioc_s_tuner = vidioc_s_tuner;
 697         vv_data.ops.vidioc_g_frequency = vidioc_g_frequency;
 698         vv_data.ops.vidioc_s_frequency = vidioc_s_frequency;
 699         vv_data.ops.vidioc_enumaudio = vidioc_enumaudio;
 700         vv_data.ops.vidioc_g_audio = vidioc_g_audio;
 701         vv_data.ops.vidioc_s_audio = vidioc_s_audio;
 702 #ifdef CONFIG_VIDEO_ADV_DEBUG
 703         vv_data.ops.vidioc_g_register = vidioc_g_register;
 704         vv_data.ops.vidioc_s_register = vidioc_s_register;
 705 #endif
 706         if (saa7146_register_device(&mxb->video_dev, dev, "mxb", VFL_TYPE_GRABBER)) {
 707                 ERR("cannot register capture v4l2 device. skipping.\n");
 708                 saa7146_vv_release(dev);
 709                 return -1;
 710         }
 711
 712         /* initialization stuff (vbi) (only for revision > 0 and for extensions which want it)*/
 713         if (MXB_BOARD_CAN_DO_VBI(dev)) {
 714                 if (saa7146_register_device(&mxb->vbi_dev, dev, "mxb", VFL_TYPE_VBI)) {
 715                         ERR("cannot register vbi v4l2 device. skipping.\n");
 716                 }
 717         }
 718
 719         pr_info("found Multimedia eXtension Board #%d\n", mxb_num);
 720
 721         mxb_num++;
 722         mxb_init_done(dev);
 723         return 0;
 724 }
 725
 726 static int mxb_detach(struct saa7146_dev *dev)
 727 {
 728         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 729
 730         DEB_EE("dev:%p\n", dev);
 731
 732         /* mute audio on tea6420s */
 733         tea6420_route(mxb, 6);
 734
 735         saa7146_unregister_device(&mxb->video_dev,dev);
 736         if (MXB_BOARD_CAN_DO_VBI(dev))
 737                 saa7146_unregister_device(&mxb->vbi_dev, dev);
 738         saa7146_vv_release(dev);
 739
 740         mxb_num--;
 741
 742         i2c_del_adapter(&mxb->i2c_adapter);
 743         kfree(mxb);
 744
 745         return 0;
 746 }
 747
 748 static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *standard)
 749 {
 750         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 751
 752         if (V4L2_STD_PAL_I == standard->id) {
 753                 v4l2_std_id std = V4L2_STD_PAL_I;
 754
 755                 DEB_D("VIDIOC_S_STD: setting mxb for PAL_I\n");
 756                 /* These two gpio calls set the GPIO pins that control the tda9820 */
 757                 saa7146_write(dev, GPIO_CTRL, 0x00404050);
 758                 saa7111a_call(mxb, core, s_gpio, 0);
 759                 saa7111a_call(mxb, core, s_std, std);
 760                 if (mxb->cur_input == 0)
 761                         tuner_call(mxb, core, s_std, std);
 762         } else {
 763                 v4l2_std_id std = V4L2_STD_PAL_BG;
 764
 765                 if (mxb->cur_input)
 766                         std = standard->id;
 767                 DEB_D("VIDIOC_S_STD: setting mxb for PAL/NTSC/SECAM\n");
 768                 /* These two gpio calls set the GPIO pins that control the tda9820 */
 769                 saa7146_write(dev, GPIO_CTRL, 0x00404050);
 770                 saa7111a_call(mxb, core, s_gpio, 1);
 771                 saa7111a_call(mxb, core, s_std, std);
 772                 if (mxb->cur_input == 0)
 773                         tuner_call(mxb, core, s_std, std);
 774         }
 775         return 0;
 776 }
 777
 778 static struct saa7146_standard standard[] = {
 779         {
 780                 .name   = "PAL-BG",     .id     = V4L2_STD_PAL_BG,
 781                 .v_offset       = 0x17, .v_field        = 288,
 782                 .h_offset       = 0x14, .h_pixels       = 680,
 783                 .v_max_out      = 576,  .h_max_out      = 768,
 784         }, {
 785                 .name   = "PAL-I",      .id     = V4L2_STD_PAL_I,
 786                 .v_offset       = 0x17, .v_field        = 288,
 787                 .h_offset       = 0x14, .h_pixels       = 680,
 788                 .v_max_out      = 576,  .h_max_out      = 768,
 789         }, {
 790                 .name   = "NTSC",       .id     = V4L2_STD_NTSC,
 791                 .v_offset       = 0x16, .v_field        = 240,
 792                 .h_offset       = 0x06, .h_pixels       = 708,
 793                 .v_max_out      = 480,  .h_max_out      = 640,
 794         }, {
 795                 .name   = "SECAM",      .id     = V4L2_STD_SECAM,
 796                 .v_offset       = 0x14, .v_field        = 288,
 797                 .h_offset       = 0x14, .h_pixels       = 720,
 798                 .v_max_out      = 576,  .h_max_out      = 768,
 799         }
 800 };
 801
 802 static struct saa7146_pci_extension_data mxb = {
 803         .ext_priv = "Multimedia eXtension Board",
 804         .ext = &extension,
 805 };
 806
 807 static struct pci_device_id pci_tbl[] = {
 808         {
 809                 .vendor    = PCI_VENDOR_ID_PHILIPS,
 810                 .device    = PCI_DEVICE_ID_PHILIPS_SAA7146,
 811                 .subvendor = 0x0000,
 812                 .subdevice = 0x0000,
 813                 .driver_data = (unsigned long)&mxb,
 814         }, {
 815                 .vendor = 0,
 816         }
 817 };
 818
 819 MODULE_DEVICE_TABLE(pci, pci_tbl);
 820
 821 static struct saa7146_ext_vv vv_data = {
 822         .inputs         = MXB_INPUTS,
 823         .capabilities   = V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_AUDIO,
 824         .stds           = &standard[0],
 825         .num_stds       = sizeof(standard)/sizeof(struct saa7146_standard),
 826         .std_callback   = &std_callback,
 827 };
 828
 829 static struct saa7146_extension extension = {
 830         .name           = "Multimedia eXtension Board",
 831         .flags          = SAA7146_USE_I2C_IRQ,
 832
 833         .pci_tbl        = &pci_tbl[0],
 834         .module         = THIS_MODULE,
 835
 836         .attach         = mxb_attach,
 837         .detach         = mxb_detach,
 838
 839         .irq_mask       = 0,
 840         .irq_func       = NULL,
 841 };
 842
 843 static int __init mxb_init_module(void)
 844 {
 845         if (saa7146_register_extension(&extension)) {
 846                 DEB_S("failed to register extension\n");
 847                 return -ENODEV;
 848         }
 849
 850         return 0;
 851 }
 852
 853 static void __exit mxb_cleanup_module(void)
 854 {
 855         saa7146_unregister_extension(&extension);
 856 }
 857
 858 module_init(mxb_init_module);
 859 module_exit(mxb_cleanup_module);
 860
 861 MODULE_DESCRIPTION("video4linux-2 driver for the Siemens-Nixdorf 'Multimedia eXtension board'");
 862 MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
 863 MODULE_LICENSE("GPL");