drivers/media/video/saa7115.c

   1 /* saa711x - Philips SAA711x video decoder driver
   2  * This driver can work with saa7111, saa7111a, saa7113, saa7114,
   3  *                           saa7115 and saa7118.
   4  *
   5  * Based on saa7114 driver by Maxim Yevtyushkin, which is based on
   6  * the saa7111 driver by Dave Perks.
   7  *
   8  * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
   9  * Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
  10  *
  11  * Slight changes for video timing and attachment output by
  12  * Wolfgang Scherr <scherr@net4you.net>
  13  *
  14  * Moved over to the linux >= 2.4.x i2c protocol (1/1/2003)
  15  * by Ronald Bultje <rbultje@ronald.bitfreak.net>
  16  *
  17  * Added saa7115 support by Kevin Thayer <nufan_wfk at yahoo.com>
  18  * (2/17/2003)
  19  *
  20  * VBI support (2004) and cleanups (2005) by Hans Verkuil <hverkuil@xs4all.nl>
  21  *
  22  * Copyright (c) 2005-2006 Mauro Carvalho Chehab <mchehab@infradead.org>
  23  *      SAA7111, SAA7113 and SAA7118 support
  24  *
  25  * This program is free software; you can redistribute it and/or
  26  * modify it under the terms of the GNU General Public License
  27  * as published by the Free Software Foundation; either version 2
  28  * of the License, or (at your option) any later version.
  29  *
  30  * This program is distributed in the hope that it will be useful,
  31  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  32  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  33  * GNU General Public License for more details.
  34  *
  35  * You should have received a copy of the GNU General Public License
  36  * along with this program; if not, write to the Free Software
  37  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  38  */
  39
  40 #include "saa711x_regs.h"
  41
  42 #include <linux/kernel.h>
  43 #include <linux/module.h>
  44 #include <linux/slab.h>
  45 #include <linux/i2c.h>
  46 #include <linux/videodev2.h>
  47 #include <media/v4l2-device.h>
  48 #include <media/v4l2-ctrls.h>
  49 #include <media/v4l2-chip-ident.h>
  50 #include <media/saa7115.h>
  51 #include <asm/div64.h>
  52
  53 #define VRES_60HZ       (480+16)
  54
  55 MODULE_DESCRIPTION("Philips SAA7111/SAA7113/SAA7114/SAA7115/SAA7118 video decoder driver");
  56 MODULE_AUTHOR(  "Maxim Yevtyushkin, Kevin Thayer, Chris Kennedy, "
  57                 "Hans Verkuil, Mauro Carvalho Chehab");
  58 MODULE_LICENSE("GPL");
  59
  60 static int debug;
  61 module_param(debug, bool, 0644);
  62
  63 MODULE_PARM_DESC(debug, "Debug level (0-1)");
  64
  65
  66 struct saa711x_state {
  67         struct v4l2_subdev sd;
  68         struct v4l2_ctrl_handler hdl;
  69
  70         struct {
  71                 /* chroma gain control cluster */
  72                 struct v4l2_ctrl *agc;
  73                 struct v4l2_ctrl *gain;
  74         };
  75
  76         v4l2_std_id std;
  77         int input;
  78         int output;
  79         int enable;
  80         int radio;
  81         int width;
  82         int height;
  83         u32 ident;
  84         u32 audclk_freq;
  85         u32 crystal_freq;
  86         u8 ucgc;
  87         u8 cgcdiv;
  88         u8 apll;
  89 };
  90
  91 static inline struct saa711x_state *to_state(struct v4l2_subdev *sd)
  92 {
  93         return container_of(sd, struct saa711x_state, sd);
  94 }
  95
  96 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
  97 {
  98         return &container_of(ctrl->handler, struct saa711x_state, hdl)->sd;
  99 }
 100
 101 /* ----------------------------------------------------------------------- */
 102
 103 static inline int saa711x_write(struct v4l2_subdev *sd, u8 reg, u8 value)
 104 {
 105         struct i2c_client *client = v4l2_get_subdevdata(sd);
 106
 107         return i2c_smbus_write_byte_data(client, reg, value);
 108 }
 109
 110 /* Sanity routine to check if a register is present */
 111 static int saa711x_has_reg(const int id, const u8 reg)
 112 {
 113         if (id == V4L2_IDENT_SAA7111)
 114                 return reg < 0x20 && reg != 0x01 && reg != 0x0f &&
 115                        (reg < 0x13 || reg > 0x19) && reg != 0x1d && reg != 0x1e;
 116         if (id == V4L2_IDENT_SAA7111A)
 117                 return reg < 0x20 && reg != 0x01 && reg != 0x0f &&
 118                        reg != 0x14 && reg != 0x18 && reg != 0x19 &&
 119                        reg != 0x1d && reg != 0x1e;
 120
 121         /* common for saa7113/4/5/8 */
 122         if (unlikely((reg >= 0x3b && reg <= 0x3f) || reg == 0x5c || reg == 0x5f ||
 123             reg == 0xa3 || reg == 0xa7 || reg == 0xab || reg == 0xaf || (reg >= 0xb5 && reg <= 0xb7) ||
 124             reg == 0xd3 || reg == 0xd7 || reg == 0xdb || reg == 0xdf || (reg >= 0xe5 && reg <= 0xe7) ||
 125             reg == 0x82 || (reg >= 0x89 && reg <= 0x8e)))
 126                 return 0;
 127
 128         switch (id) {
 129         case V4L2_IDENT_SAA7113:
 130                 return reg != 0x14 && (reg < 0x18 || reg > 0x1e) && (reg < 0x20 || reg > 0x3f) &&
 131                        reg != 0x5d && reg < 0x63;
 132         case V4L2_IDENT_SAA7114:
 133                 return (reg < 0x1a || reg > 0x1e) && (reg < 0x20 || reg > 0x2f) &&
 134                        (reg < 0x63 || reg > 0x7f) && reg != 0x33 && reg != 0x37 &&
 135                        reg != 0x81 && reg < 0xf0;
 136         case V4L2_IDENT_SAA7115:
 137                 return (reg < 0x20 || reg > 0x2f) && reg != 0x65 && (reg < 0xfc || reg > 0xfe);
 138         case V4L2_IDENT_SAA7118:
 139                 return (reg < 0x1a || reg > 0x1d) && (reg < 0x20 || reg > 0x22) &&
 140                        (reg < 0x26 || reg > 0x28) && reg != 0x33 && reg != 0x37 &&
 141                        (reg < 0x63 || reg > 0x7f) && reg != 0x81 && reg < 0xf0;
 142         }
 143         return 1;
 144 }
 145
 146 static int saa711x_writeregs(struct v4l2_subdev *sd, const unsigned char *regs)
 147 {
 148         struct saa711x_state *state = to_state(sd);
 149         unsigned char reg, data;
 150
 151         while (*regs != 0x00) {
 152                 reg = *(regs++);
 153                 data = *(regs++);
 154
 155                 /* According with datasheets, reserved regs should be
 156                    filled with 0 - seems better not to touch on they */
 157                 if (saa711x_has_reg(state->ident, reg)) {
 158                         if (saa711x_write(sd, reg, data) < 0)
 159                                 return -1;
 160                 } else {
 161                         v4l2_dbg(1, debug, sd, "tried to access reserved reg 0x%02x\n", reg);
 162                 }
 163         }
 164         return 0;
 165 }
 166
 167 static inline int saa711x_read(struct v4l2_subdev *sd, u8 reg)
 168 {
 169         struct i2c_client *client = v4l2_get_subdevdata(sd);
 170
 171         return i2c_smbus_read_byte_data(client, reg);
 172 }
 173
 174 /* ----------------------------------------------------------------------- */
 175
 176 /* SAA7111 initialization table */
 177 static const unsigned char saa7111_init[] = {
 178         R_01_INC_DELAY, 0x00,           /* reserved */
 179
 180         /*front end */
 181         R_02_INPUT_CNTL_1, 0xd0,        /* FUSE=3, GUDL=2, MODE=0 */
 182         R_03_INPUT_CNTL_2, 0x23,        /* HLNRS=0, VBSL=1, WPOFF=0, HOLDG=0,
 183                                          * GAFIX=0, GAI1=256, GAI2=256 */
 184         R_04_INPUT_CNTL_3, 0x00,        /* GAI1=256 */
 185         R_05_INPUT_CNTL_4, 0x00,        /* GAI2=256 */
 186
 187         /* decoder */
 188         R_06_H_SYNC_START, 0xf3,        /* HSB at  13(50Hz) /  17(60Hz)
 189                                          * pixels after end of last line */
 190         R_07_H_SYNC_STOP, 0xe8,         /* HSS seems to be needed to
 191                                          * work with NTSC, too */
 192         R_08_SYNC_CNTL, 0xc8,           /* AUFD=1, FSEL=1, EXFIL=0,
 193                                          * VTRC=1, HPLL=0, VNOI=0 */
 194         R_09_LUMA_CNTL, 0x01,           /* BYPS=0, PREF=0, BPSS=0,
 195                                          * VBLB=0, UPTCV=0, APER=1 */
 196         R_0A_LUMA_BRIGHT_CNTL, 0x80,
 197         R_0B_LUMA_CONTRAST_CNTL, 0x47,  /* 0b - CONT=1.109 */
 198         R_0C_CHROMA_SAT_CNTL, 0x40,
 199         R_0D_CHROMA_HUE_CNTL, 0x00,
 200         R_0E_CHROMA_CNTL_1, 0x01,       /* 0e - CDTO=0, CSTD=0, DCCF=0,
 201                                          * FCTC=0, CHBW=1 */
 202         R_0F_CHROMA_GAIN_CNTL, 0x00,    /* reserved */
 203         R_10_CHROMA_CNTL_2, 0x48,       /* 10 - OFTS=1, HDEL=0, VRLN=1, YDEL=0 */
 204         R_11_MODE_DELAY_CNTL, 0x1c,     /* 11 - GPSW=0, CM99=0, FECO=0, COMPO=1,
 205                                          * OEYC=1, OEHV=1, VIPB=0, COLO=0 */
 206         R_12_RT_SIGNAL_CNTL, 0x00,      /* 12 - output control 2 */
 207         R_13_RT_X_PORT_OUT_CNTL, 0x00,  /* 13 - output control 3 */
 208         R_14_ANAL_ADC_COMPAT_CNTL, 0x00,
 209         R_15_VGATE_START_FID_CHG, 0x00,
 210         R_16_VGATE_STOP, 0x00,
 211         R_17_MISC_VGATE_CONF_AND_MSB, 0x00,
 212
 213         0x00, 0x00
 214 };
 215
 216 /* SAA7113 init codes */
 217 static const unsigned char saa7113_init[] = {
 218         R_01_INC_DELAY, 0x08,
 219         R_02_INPUT_CNTL_1, 0xc2,
 220         R_03_INPUT_CNTL_2, 0x30,
 221         R_04_INPUT_CNTL_3, 0x00,
 222         R_05_INPUT_CNTL_4, 0x00,
 223         R_06_H_SYNC_START, 0x89,
 224         R_07_H_SYNC_STOP, 0x0d,
 225         R_08_SYNC_CNTL, 0x88,
 226         R_09_LUMA_CNTL, 0x01,
 227         R_0A_LUMA_BRIGHT_CNTL, 0x80,
 228         R_0B_LUMA_CONTRAST_CNTL, 0x47,
 229         R_0C_CHROMA_SAT_CNTL, 0x40,
 230         R_0D_CHROMA_HUE_CNTL, 0x00,
 231         R_0E_CHROMA_CNTL_1, 0x01,
 232         R_0F_CHROMA_GAIN_CNTL, 0x2a,
 233         R_10_CHROMA_CNTL_2, 0x08,
 234         R_11_MODE_DELAY_CNTL, 0x0c,
 235         R_12_RT_SIGNAL_CNTL, 0x07,
 236         R_13_RT_X_PORT_OUT_CNTL, 0x00,
 237         R_14_ANAL_ADC_COMPAT_CNTL, 0x00,
 238         R_15_VGATE_START_FID_CHG, 0x00,
 239         R_16_VGATE_STOP, 0x00,
 240         R_17_MISC_VGATE_CONF_AND_MSB, 0x00,
 241
 242         0x00, 0x00
 243 };
 244
 245 /* If a value differs from the Hauppauge driver values, then the comment starts with
 246    'was 0xXX' to denote the Hauppauge value. Otherwise the value is identical to what the
 247    Hauppauge driver sets. */
 248
 249 /* SAA7114 and SAA7115 initialization table */
 250 static const unsigned char saa7115_init_auto_input[] = {
 251                 /* Front-End Part */
 252         R_01_INC_DELAY, 0x48,                   /* white peak control disabled */
 253         R_03_INPUT_CNTL_2, 0x20,                /* was 0x30. 0x20: long vertical blanking */
 254         R_04_INPUT_CNTL_3, 0x90,                /* analog gain set to 0 */
 255         R_05_INPUT_CNTL_4, 0x90,                /* analog gain set to 0 */
 256                 /* Decoder Part */
 257         R_06_H_SYNC_START, 0xeb,                /* horiz sync begin = -21 */
 258         R_07_H_SYNC_STOP, 0xe0,                 /* horiz sync stop = -17 */
 259         R_09_LUMA_CNTL, 0x53,                   /* 0x53, was 0x56 for 60hz. luminance control */
 260         R_0A_LUMA_BRIGHT_CNTL, 0x80,            /* was 0x88. decoder brightness, 0x80 is itu standard */
 261         R_0B_LUMA_CONTRAST_CNTL, 0x44,          /* was 0x48. decoder contrast, 0x44 is itu standard */
 262         R_0C_CHROMA_SAT_CNTL, 0x40,             /* was 0x47. decoder saturation, 0x40 is itu standard */
 263         R_0D_CHROMA_HUE_CNTL, 0x00,
 264         R_0F_CHROMA_GAIN_CNTL, 0x00,            /* use automatic gain  */
 265         R_10_CHROMA_CNTL_2, 0x06,               /* chroma: active adaptive combfilter */
 266         R_11_MODE_DELAY_CNTL, 0x00,
 267         R_12_RT_SIGNAL_CNTL, 0x9d,              /* RTS0 output control: VGATE */
 268         R_13_RT_X_PORT_OUT_CNTL, 0x80,          /* ITU656 standard mode, RTCO output enable RTCE */
 269         R_14_ANAL_ADC_COMPAT_CNTL, 0x00,
 270         R_18_RAW_DATA_GAIN_CNTL, 0x40,          /* gain 0x00 = nominal */
 271         R_19_RAW_DATA_OFF_CNTL, 0x80,
 272         R_1A_COLOR_KILL_LVL_CNTL, 0x77,         /* recommended value */
 273         R_1B_MISC_TVVCRDET, 0x42,               /* recommended value */
 274         R_1C_ENHAN_COMB_CTRL1, 0xa9,            /* recommended value */
 275         R_1D_ENHAN_COMB_CTRL2, 0x01,            /* recommended value */
 276
 277
 278         R_80_GLOBAL_CNTL_1, 0x0,                /* No tasks enabled at init */
 279
 280                 /* Power Device Control */
 281         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0,    /* reset device */
 282         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0,    /* set device programmed, all in operational mode */
 283         0x00, 0x00
 284 };
 285
 286 /* Used to reset saa7113, saa7114 and saa7115 */
 287 static const unsigned char saa7115_cfg_reset_scaler[] = {
 288         R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x00,    /* disable I-port output */
 289         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0,            /* reset scaler */
 290         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0,            /* activate scaler */
 291         R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x01,    /* enable I-port output */
 292         0x00, 0x00
 293 };
 294
 295 /* ============== SAA7715 VIDEO templates =============  */
 296
 297 static const unsigned char saa7115_cfg_60hz_video[] = {
 298         R_80_GLOBAL_CNTL_1, 0x00,                       /* reset tasks */
 299         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0,            /* reset scaler */
 300
 301         R_15_VGATE_START_FID_CHG, 0x03,
 302         R_16_VGATE_STOP, 0x11,
 303         R_17_MISC_VGATE_CONF_AND_MSB, 0x9c,
 304
 305         R_08_SYNC_CNTL, 0x68,                   /* 0xBO: auto detection, 0x68 = NTSC */
 306         R_0E_CHROMA_CNTL_1, 0x07,               /* video autodetection is on */
 307
 308         R_5A_V_OFF_FOR_SLICER, 0x06,            /* standard 60hz value for ITU656 line counting */
 309
 310         /* Task A */
 311         R_90_A_TASK_HANDLING_CNTL, 0x80,
 312         R_91_A_X_PORT_FORMATS_AND_CONF, 0x48,
 313         R_92_A_X_PORT_INPUT_REFERENCE_SIGNAL, 0x40,
 314         R_93_A_I_PORT_OUTPUT_FORMATS_AND_CONF, 0x84,
 315
 316         /* hoffset low (input), 0x0002 is minimum */
 317         R_94_A_HORIZ_INPUT_WINDOW_START, 0x01,
 318         R_95_A_HORIZ_INPUT_WINDOW_START_MSB, 0x00,
 319
 320         /* hsize low (input), 0x02d0 = 720 */
 321         R_96_A_HORIZ_INPUT_WINDOW_LENGTH, 0xd0,
 322         R_97_A_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0x02,
 323
 324         R_98_A_VERT_INPUT_WINDOW_START, 0x05,
 325         R_99_A_VERT_INPUT_WINDOW_START_MSB, 0x00,
 326
 327         R_9A_A_VERT_INPUT_WINDOW_LENGTH, 0x0c,
 328         R_9B_A_VERT_INPUT_WINDOW_LENGTH_MSB, 0x00,
 329
 330         R_9C_A_HORIZ_OUTPUT_WINDOW_LENGTH, 0xa0,
 331         R_9D_A_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0x05,
 332
 333         R_9E_A_VERT_OUTPUT_WINDOW_LENGTH, 0x0c,
 334         R_9F_A_VERT_OUTPUT_WINDOW_LENGTH_MSB, 0x00,
 335
 336         /* Task B */
 337         R_C0_B_TASK_HANDLING_CNTL, 0x00,
 338         R_C1_B_X_PORT_FORMATS_AND_CONF, 0x08,
 339         R_C2_B_INPUT_REFERENCE_SIGNAL_DEFINITION, 0x00,
 340         R_C3_B_I_PORT_FORMATS_AND_CONF, 0x80,
 341
 342         /* 0x0002 is minimum */
 343         R_C4_B_HORIZ_INPUT_WINDOW_START, 0x02,
 344         R_C5_B_HORIZ_INPUT_WINDOW_START_MSB, 0x00,
 345
 346         /* 0x02d0 = 720 */
 347         R_C6_B_HORIZ_INPUT_WINDOW_LENGTH, 0xd0,
 348         R_C7_B_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0x02,
 349
 350         /* vwindow start 0x12 = 18 */
 351         R_C8_B_VERT_INPUT_WINDOW_START, 0x12,
 352         R_C9_B_VERT_INPUT_WINDOW_START_MSB, 0x00,
 353
 354         /* vwindow length 0xf8 = 248 */
 355         R_CA_B_VERT_INPUT_WINDOW_LENGTH, VRES_60HZ>>1,
 356         R_CB_B_VERT_INPUT_WINDOW_LENGTH_MSB, VRES_60HZ>>9,
 357
 358         /* hwindow 0x02d0 = 720 */
 359         R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH, 0xd0,
 360         R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0x02,
 361
 362         R_F0_LFCO_PER_LINE, 0xad,               /* Set PLL Register. 60hz 525 lines per frame, 27 MHz */
 363         R_F1_P_I_PARAM_SELECT, 0x05,            /* low bit with 0xF0 */
 364         R_F5_PULSGEN_LINE_LENGTH, 0xad,
 365         R_F6_PULSE_A_POS_LSB_AND_PULSEGEN_CONFIG, 0x01,
 366
 367         0x00, 0x00
 368 };
 369
 370 static const unsigned char saa7115_cfg_50hz_video[] = {
 371         R_80_GLOBAL_CNTL_1, 0x00,
 372         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0,    /* reset scaler */
 373
 374         R_15_VGATE_START_FID_CHG, 0x37,         /* VGATE start */
 375         R_16_VGATE_STOP, 0x16,
 376         R_17_MISC_VGATE_CONF_AND_MSB, 0x99,
 377
 378         R_08_SYNC_CNTL, 0x28,                   /* 0x28 = PAL */
 379         R_0E_CHROMA_CNTL_1, 0x07,
 380
 381         R_5A_V_OFF_FOR_SLICER, 0x03,            /* standard 50hz value */
 382
 383         /* Task A */
 384         R_90_A_TASK_HANDLING_CNTL, 0x81,
 385         R_91_A_X_PORT_FORMATS_AND_CONF, 0x48,
 386         R_92_A_X_PORT_INPUT_REFERENCE_SIGNAL, 0x40,
 387         R_93_A_I_PORT_OUTPUT_FORMATS_AND_CONF, 0x84,
 388
 389         /* This is weird: the datasheet says that you should use 2 as the minimum value, */
 390         /* but Hauppauge uses 0, and changing that to 2 causes indeed problems (for 50hz) */
 391         /* hoffset low (input), 0x0002 is minimum */
 392         R_94_A_HORIZ_INPUT_WINDOW_START, 0x00,
 393         R_95_A_HORIZ_INPUT_WINDOW_START_MSB, 0x00,
 394
 395         /* hsize low (input), 0x02d0 = 720 */
 396         R_96_A_HORIZ_INPUT_WINDOW_LENGTH, 0xd0,
 397         R_97_A_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0x02,
 398
 399         R_98_A_VERT_INPUT_WINDOW_START, 0x03,
 400         R_99_A_VERT_INPUT_WINDOW_START_MSB, 0x00,
 401
 402         /* vsize 0x12 = 18 */
 403         R_9A_A_VERT_INPUT_WINDOW_LENGTH, 0x12,
 404         R_9B_A_VERT_INPUT_WINDOW_LENGTH_MSB, 0x00,
 405
 406         /* hsize 0x05a0 = 1440 */
 407         R_9C_A_HORIZ_OUTPUT_WINDOW_LENGTH, 0xa0,
 408         R_9D_A_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0x05,    /* hsize hi (output) */
 409         R_9E_A_VERT_OUTPUT_WINDOW_LENGTH, 0x12,         /* vsize low (output), 0x12 = 18 */
 410         R_9F_A_VERT_OUTPUT_WINDOW_LENGTH_MSB, 0x00,     /* vsize hi (output) */
 411
 412         /* Task B */
 413         R_C0_B_TASK_HANDLING_CNTL, 0x00,
 414         R_C1_B_X_PORT_FORMATS_AND_CONF, 0x08,
 415         R_C2_B_INPUT_REFERENCE_SIGNAL_DEFINITION, 0x00,
 416         R_C3_B_I_PORT_FORMATS_AND_CONF, 0x80,
 417
 418         /* This is weird: the datasheet says that you should use 2 as the minimum value, */
 419         /* but Hauppauge uses 0, and changing that to 2 causes indeed problems (for 50hz) */
 420         /* hoffset low (input), 0x0002 is minimum. See comment above. */
 421         R_C4_B_HORIZ_INPUT_WINDOW_START, 0x00,
 422         R_C5_B_HORIZ_INPUT_WINDOW_START_MSB, 0x00,
 423
 424         /* hsize 0x02d0 = 720 */
 425         R_C6_B_HORIZ_INPUT_WINDOW_LENGTH, 0xd0,
 426         R_C7_B_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0x02,
 427
 428         /* voffset 0x16 = 22 */
 429         R_C8_B_VERT_INPUT_WINDOW_START, 0x16,
 430         R_C9_B_VERT_INPUT_WINDOW_START_MSB, 0x00,
 431
 432         /* vsize 0x0120 = 288 */
 433         R_CA_B_VERT_INPUT_WINDOW_LENGTH, 0x20,
 434         R_CB_B_VERT_INPUT_WINDOW_LENGTH_MSB, 0x01,
 435
 436         /* hsize 0x02d0 = 720 */
 437         R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH, 0xd0,
 438         R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0x02,
 439
 440         R_F0_LFCO_PER_LINE, 0xb0,               /* Set PLL Register. 50hz 625 lines per frame, 27 MHz */
 441         R_F1_P_I_PARAM_SELECT, 0x05,            /* low bit with 0xF0, (was 0x05) */
 442         R_F5_PULSGEN_LINE_LENGTH, 0xb0,
 443         R_F6_PULSE_A_POS_LSB_AND_PULSEGEN_CONFIG, 0x01,
 444
 445         0x00, 0x00
 446 };
 447
 448 /* ============== SAA7715 VIDEO templates (end) =======  */
 449
 450 static const unsigned char saa7115_cfg_vbi_on[] = {
 451         R_80_GLOBAL_CNTL_1, 0x00,                       /* reset tasks */
 452         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0,            /* reset scaler */
 453         R_80_GLOBAL_CNTL_1, 0x30,                       /* Activate both tasks */
 454         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0,            /* activate scaler */
 455         R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x01,    /* Enable I-port output */
 456
 457         0x00, 0x00
 458 };
 459
 460 static const unsigned char saa7115_cfg_vbi_off[] = {
 461         R_80_GLOBAL_CNTL_1, 0x00,                       /* reset tasks */
 462         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0,            /* reset scaler */
 463         R_80_GLOBAL_CNTL_1, 0x20,                       /* Activate only task "B" */
 464         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0,            /* activate scaler */
 465         R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x01,    /* Enable I-port output */
 466
 467         0x00, 0x00
 468 };
 469
 470
 471 static const unsigned char saa7115_init_misc[] = {
 472         R_81_V_SYNC_FLD_ID_SRC_SEL_AND_RETIMED_V_F, 0x01,
 473         R_83_X_PORT_I_O_ENA_AND_OUT_CLK, 0x01,
 474         R_84_I_PORT_SIGNAL_DEF, 0x20,
 475         R_85_I_PORT_SIGNAL_POLAR, 0x21,
 476         R_86_I_PORT_FIFO_FLAG_CNTL_AND_ARBIT, 0xc5,
 477         R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x01,
 478
 479         /* Task A */
 480         R_A0_A_HORIZ_PRESCALING, 0x01,
 481         R_A1_A_ACCUMULATION_LENGTH, 0x00,
 482         R_A2_A_PRESCALER_DC_GAIN_AND_FIR_PREFILTER, 0x00,
 483
 484         /* Configure controls at nominal value*/
 485         R_A4_A_LUMA_BRIGHTNESS_CNTL, 0x80,
 486         R_A5_A_LUMA_CONTRAST_CNTL, 0x40,
 487         R_A6_A_CHROMA_SATURATION_CNTL, 0x40,
 488
 489         /* note: 2 x zoom ensures that VBI lines have same length as video lines. */
 490         R_A8_A_HORIZ_LUMA_SCALING_INC, 0x00,
 491         R_A9_A_HORIZ_LUMA_SCALING_INC_MSB, 0x02,
 492
 493         R_AA_A_HORIZ_LUMA_PHASE_OFF, 0x00,
 494
 495         /* must be horiz lum scaling / 2 */
 496         R_AC_A_HORIZ_CHROMA_SCALING_INC, 0x00,
 497         R_AD_A_HORIZ_CHROMA_SCALING_INC_MSB, 0x01,
 498
 499         /* must be offset luma / 2 */
 500         R_AE_A_HORIZ_CHROMA_PHASE_OFF, 0x00,
 501
 502         R_B0_A_VERT_LUMA_SCALING_INC, 0x00,
 503         R_B1_A_VERT_LUMA_SCALING_INC_MSB, 0x04,
 504
 505         R_B2_A_VERT_CHROMA_SCALING_INC, 0x00,
 506         R_B3_A_VERT_CHROMA_SCALING_INC_MSB, 0x04,
 507
 508         R_B4_A_VERT_SCALING_MODE_CNTL, 0x01,
 509
 510         R_B8_A_VERT_CHROMA_PHASE_OFF_00, 0x00,
 511         R_B9_A_VERT_CHROMA_PHASE_OFF_01, 0x00,
 512         R_BA_A_VERT_CHROMA_PHASE_OFF_10, 0x00,
 513         R_BB_A_VERT_CHROMA_PHASE_OFF_11, 0x00,
 514
 515         R_BC_A_VERT_LUMA_PHASE_OFF_00, 0x00,
 516         R_BD_A_VERT_LUMA_PHASE_OFF_01, 0x00,
 517         R_BE_A_VERT_LUMA_PHASE_OFF_10, 0x00,
 518         R_BF_A_VERT_LUMA_PHASE_OFF_11, 0x00,
 519
 520         /* Task B */
 521         R_D0_B_HORIZ_PRESCALING, 0x01,
 522         R_D1_B_ACCUMULATION_LENGTH, 0x00,
 523         R_D2_B_PRESCALER_DC_GAIN_AND_FIR_PREFILTER, 0x00,
 524
 525         /* Configure controls at nominal value*/
 526         R_D4_B_LUMA_BRIGHTNESS_CNTL, 0x80,
 527         R_D5_B_LUMA_CONTRAST_CNTL, 0x40,
 528         R_D6_B_CHROMA_SATURATION_CNTL, 0x40,
 529
 530         /* hor lum scaling 0x0400 = 1 */
 531         R_D8_B_HORIZ_LUMA_SCALING_INC, 0x00,
 532         R_D9_B_HORIZ_LUMA_SCALING_INC_MSB, 0x04,
 533
 534         R_DA_B_HORIZ_LUMA_PHASE_OFF, 0x00,
 535
 536         /* must be hor lum scaling / 2 */
 537         R_DC_B_HORIZ_CHROMA_SCALING, 0x00,
 538         R_DD_B_HORIZ_CHROMA_SCALING_MSB, 0x02,
 539
 540         /* must be offset luma / 2 */
 541         R_DE_B_HORIZ_PHASE_OFFSET_CRHOMA, 0x00,
 542
 543         R_E0_B_VERT_LUMA_SCALING_INC, 0x00,
 544         R_E1_B_VERT_LUMA_SCALING_INC_MSB, 0x04,
 545
 546         R_E2_B_VERT_CHROMA_SCALING_INC, 0x00,
 547         R_E3_B_VERT_CHROMA_SCALING_INC_MSB, 0x04,
 548
 549         R_E4_B_VERT_SCALING_MODE_CNTL, 0x01,
 550
 551         R_E8_B_VERT_CHROMA_PHASE_OFF_00, 0x00,
 552         R_E9_B_VERT_CHROMA_PHASE_OFF_01, 0x00,
 553         R_EA_B_VERT_CHROMA_PHASE_OFF_10, 0x00,
 554         R_EB_B_VERT_CHROMA_PHASE_OFF_11, 0x00,
 555
 556         R_EC_B_VERT_LUMA_PHASE_OFF_00, 0x00,
 557         R_ED_B_VERT_LUMA_PHASE_OFF_01, 0x00,
 558         R_EE_B_VERT_LUMA_PHASE_OFF_10, 0x00,
 559         R_EF_B_VERT_LUMA_PHASE_OFF_11, 0x00,
 560
 561         R_F2_NOMINAL_PLL2_DTO, 0x50,            /* crystal clock = 24.576 MHz, target = 27MHz */
 562         R_F3_PLL_INCREMENT, 0x46,
 563         R_F4_PLL2_STATUS, 0x00,
 564         R_F7_PULSE_A_POS_MSB, 0x4b,             /* not the recommended settings! */
 565         R_F8_PULSE_B_POS, 0x00,
 566         R_F9_PULSE_B_POS_MSB, 0x4b,
 567         R_FA_PULSE_C_POS, 0x00,
 568         R_FB_PULSE_C_POS_MSB, 0x4b,
 569
 570         /* PLL2 lock detection settings: 71 lines 50% phase error */
 571         R_FF_S_PLL_MAX_PHASE_ERR_THRESH_NUM_LINES, 0x88,
 572
 573         /* Turn off VBI */
 574         R_40_SLICER_CNTL_1, 0x20,             /* No framing code errors allowed. */
 575         R_41_LCR_BASE, 0xff,
 576         R_41_LCR_BASE+1, 0xff,
 577         R_41_LCR_BASE+2, 0xff,
 578         R_41_LCR_BASE+3, 0xff,
 579         R_41_LCR_BASE+4, 0xff,
 580         R_41_LCR_BASE+5, 0xff,
 581         R_41_LCR_BASE+6, 0xff,
 582         R_41_LCR_BASE+7, 0xff,
 583         R_41_LCR_BASE+8, 0xff,
 584         R_41_LCR_BASE+9, 0xff,
 585         R_41_LCR_BASE+10, 0xff,
 586         R_41_LCR_BASE+11, 0xff,
 587         R_41_LCR_BASE+12, 0xff,
 588         R_41_LCR_BASE+13, 0xff,
 589         R_41_LCR_BASE+14, 0xff,
 590         R_41_LCR_BASE+15, 0xff,
 591         R_41_LCR_BASE+16, 0xff,
 592         R_41_LCR_BASE+17, 0xff,
 593         R_41_LCR_BASE+18, 0xff,
 594         R_41_LCR_BASE+19, 0xff,
 595         R_41_LCR_BASE+20, 0xff,
 596         R_41_LCR_BASE+21, 0xff,
 597         R_41_LCR_BASE+22, 0xff,
 598         R_58_PROGRAM_FRAMING_CODE, 0x40,
 599         R_59_H_OFF_FOR_SLICER, 0x47,
 600         R_5B_FLD_OFF_AND_MSB_FOR_H_AND_V_OFF, 0x83,
 601         R_5D_DID, 0xbd,
 602         R_5E_SDID, 0x35,
 603
 604         R_02_INPUT_CNTL_1, 0xc4, /* input tuner -> input 4, amplifier active */
 605
 606         R_80_GLOBAL_CNTL_1, 0x20,               /* enable task B */
 607         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0,
 608         R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0,
 609         0x00, 0x00
 610 };
 611
 612 static int saa711x_odd_parity(u8 c)
 613 {
 614         c ^= (c >> 4);
 615         c ^= (c >> 2);
 616         c ^= (c >> 1);
 617
 618         return c & 1;
 619 }
 620
 621 static int saa711x_decode_vps(u8 *dst, u8 *p)
 622 {
 623         static const u8 biphase_tbl[] = {
 624                 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,
 625                 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,
 626                 0xd2, 0x5a, 0x52, 0xd2, 0x96, 0x1e, 0x16, 0x96,
 627                 0x92, 0x1a, 0x12, 0x92, 0xd2, 0x5a, 0x52, 0xd2,
 628                 0xd0, 0x58, 0x50, 0xd0, 0x94, 0x1c, 0x14, 0x94,
 629                 0x90, 0x18, 0x10, 0x90, 0xd0, 0x58, 0x50, 0xd0,
 630                 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,
 631                 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,
 632                 0xe1, 0x69, 0x61, 0xe1, 0xa5, 0x2d, 0x25, 0xa5,
 633                 0xa1, 0x29, 0x21, 0xa1, 0xe1, 0x69, 0x61, 0xe1,
 634                 0xc3, 0x4b, 0x43, 0xc3, 0x87, 0x0f, 0x07, 0x87,
 635                 0x83, 0x0b, 0x03, 0x83, 0xc3, 0x4b, 0x43, 0xc3,
 636                 0xc1, 0x49, 0x41, 0xc1, 0x85, 0x0d, 0x05, 0x85,
 637                 0x81, 0x09, 0x01, 0x81, 0xc1, 0x49, 0x41, 0xc1,
 638                 0xe1, 0x69, 0x61, 0xe1, 0xa5, 0x2d, 0x25, 0xa5,
 639                 0xa1, 0x29, 0x21, 0xa1, 0xe1, 0x69, 0x61, 0xe1,
 640                 0xe0, 0x68, 0x60, 0xe0, 0xa4, 0x2c, 0x24, 0xa4,
 641                 0xa0, 0x28, 0x20, 0xa0, 0xe0, 0x68, 0x60, 0xe0,
 642                 0xc2, 0x4a, 0x42, 0xc2, 0x86, 0x0e, 0x06, 0x86,
 643                 0x82, 0x0a, 0x02, 0x82, 0xc2, 0x4a, 0x42, 0xc2,
 644                 0xc0, 0x48, 0x40, 0xc0, 0x84, 0x0c, 0x04, 0x84,
 645                 0x80, 0x08, 0x00, 0x80, 0xc0, 0x48, 0x40, 0xc0,
 646                 0xe0, 0x68, 0x60, 0xe0, 0xa4, 0x2c, 0x24, 0xa4,
 647                 0xa0, 0x28, 0x20, 0xa0, 0xe0, 0x68, 0x60, 0xe0,
 648                 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,
 649                 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,
 650                 0xd2, 0x5a, 0x52, 0xd2, 0x96, 0x1e, 0x16, 0x96,
 651                 0x92, 0x1a, 0x12, 0x92, 0xd2, 0x5a, 0x52, 0xd2,
 652                 0xd0, 0x58, 0x50, 0xd0, 0x94, 0x1c, 0x14, 0x94,
 653                 0x90, 0x18, 0x10, 0x90, 0xd0, 0x58, 0x50, 0xd0,
 654                 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,
 655                 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,
 656         };
 657         int i;
 658         u8 c, err = 0;
 659
 660         for (i = 0; i < 2 * 13; i += 2) {
 661                 err |= biphase_tbl[p[i]] | biphase_tbl[p[i + 1]];
 662                 c = (biphase_tbl[p[i + 1]] & 0xf) | ((biphase_tbl[p[i]] & 0xf) << 4);
 663                 dst[i / 2] = c;
 664         }
 665         return err & 0xf0;
 666 }
 667
 668 static int saa711x_decode_wss(u8 *p)
 669 {
 670         static const int wss_bits[8] = {
 671                 0, 0, 0, 1, 0, 1, 1, 1
 672         };
 673         unsigned char parity;
 674         int wss = 0;
 675         int i;
 676
 677         for (i = 0; i < 16; i++) {
 678                 int b1 = wss_bits[p[i] & 7];
 679                 int b2 = wss_bits[(p[i] >> 3) & 7];
 680
 681                 if (b1 == b2)
 682                         return -1;
 683                 wss |= b2 << i;
 684         }
 685         parity = wss & 15;
 686         parity ^= parity >> 2;
 687         parity ^= parity >> 1;
 688
 689         if (!(parity & 1))
 690                 return -1;
 691
 692         return wss;
 693 }
 694
 695 static int saa711x_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
 696 {
 697         struct saa711x_state *state = to_state(sd);
 698         u32 acpf;
 699         u32 acni;
 700         u32 hz;
 701         u64 f;
 702         u8 acc = 0;     /* reg 0x3a, audio clock control */
 703
 704         /* Checks for chips that don't have audio clock (saa7111, saa7113) */
 705         if (!saa711x_has_reg(state->ident, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD))
 706                 return 0;
 707
 708         v4l2_dbg(1, debug, sd, "set audio clock freq: %d\n", freq);
 709
 710         /* sanity check */
 711         if (freq < 32000 || freq > 48000)
 712                 return -EINVAL;
 713
 714         /* hz is the refresh rate times 100 */
 715         hz = (state->std & V4L2_STD_525_60) ? 5994 : 5000;
 716         /* acpf = (256 * freq) / field_frequency == (256 * 100 * freq) / hz */
 717         acpf = (25600 * freq) / hz;
 718         /* acni = (256 * freq * 2^23) / crystal_frequency =
 719                   (freq * 2^(8+23)) / crystal_frequency =
 720                   (freq << 31) / crystal_frequency */
 721         f = freq;
 722         f = f << 31;
 723         do_div(f, state->crystal_freq);
 724         acni = f;
 725         if (state->ucgc) {
 726                 acpf = acpf * state->cgcdiv / 16;
 727                 acni = acni * state->cgcdiv / 16;
 728                 acc = 0x80;
 729                 if (state->cgcdiv == 3)
 730                         acc |= 0x40;
 731         }
 732         if (state->apll)
 733                 acc |= 0x08;
 734
 735         saa711x_write(sd, R_38_CLK_RATIO_AMXCLK_TO_ASCLK, 0x03);
 736         saa711x_write(sd, R_39_CLK_RATIO_ASCLK_TO_ALRCLK, 0x10);
 737         saa711x_write(sd, R_3A_AUD_CLK_GEN_BASIC_SETUP, acc);
 738
 739         saa711x_write(sd, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD, acpf & 0xff);
 740         saa711x_write(sd, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD+1,
 741                                                         (acpf >> 8) & 0xff);
 742         saa711x_write(sd, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD+2,
 743                                                         (acpf >> 16) & 0x03);
 744
 745         saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC, acni & 0xff);
 746         saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC+1, (acni >> 8) & 0xff);
 747         saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC+2, (acni >> 16) & 0x3f);
 748         state->audclk_freq = freq;
 749         return 0;
 750 }
 751
 752 static int saa711x_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
 753 {
 754         struct v4l2_subdev *sd = to_sd(ctrl);
 755         struct saa711x_state *state = to_state(sd);
 756
 757         switch (ctrl->id) {
 758         case V4L2_CID_CHROMA_AGC:
 759                 /* chroma gain cluster */
 760                 if (state->agc->cur.val)
 761                         state->gain->cur.val =
 762                                 saa711x_read(sd, R_0F_CHROMA_GAIN_CNTL) & 0x7f;
 763                 break;
 764         }
 765         return 0;
 766 }
 767
 768 static int saa711x_s_ctrl(struct v4l2_ctrl *ctrl)
 769 {
 770         struct v4l2_subdev *sd = to_sd(ctrl);
 771         struct saa711x_state *state = to_state(sd);
 772
 773         switch (ctrl->id) {
 774         case V4L2_CID_BRIGHTNESS:
 775                 saa711x_write(sd, R_0A_LUMA_BRIGHT_CNTL, ctrl->val);
 776                 break;
 777
 778         case V4L2_CID_CONTRAST:
 779                 saa711x_write(sd, R_0B_LUMA_CONTRAST_CNTL, ctrl->val);
 780                 break;
 781
 782         case V4L2_CID_SATURATION:
 783                 saa711x_write(sd, R_0C_CHROMA_SAT_CNTL, ctrl->val);
 784                 break;
 785
 786         case V4L2_CID_HUE:
 787                 saa711x_write(sd, R_0D_CHROMA_HUE_CNTL, ctrl->val);
 788                 break;
 789
 790         case V4L2_CID_CHROMA_AGC:
 791                 /* chroma gain cluster */
 792                 if (state->agc->val)
 793                         saa711x_write(sd, R_0F_CHROMA_GAIN_CNTL, state->gain->val);
 794                 else
 795                         saa711x_write(sd, R_0F_CHROMA_GAIN_CNTL, state->gain->val | 0x80);
 796                 v4l2_ctrl_activate(state->gain, !state->agc->val);
 797                 break;
 798
 799         default:
 800                 return -EINVAL;
 801         }
 802
 803         return 0;
 804 }
 805
 806 static int saa711x_set_size(struct v4l2_subdev *sd, int width, int height)
 807 {
 808         struct saa711x_state *state = to_state(sd);
 809         int HPSC, HFSC;
 810         int VSCY;
 811         int res;
 812         int is_50hz = state->std & V4L2_STD_625_50;
 813         int Vsrc = is_50hz ? 576 : 480;
 814
 815         v4l2_dbg(1, debug, sd, "decoder set size to %ix%i\n", width, height);
 816
 817         /* FIXME need better bounds checking here */
 818         if ((width < 1) || (width > 1440))
 819                 return -EINVAL;
 820         if ((height < 1) || (height > Vsrc))
 821                 return -EINVAL;
 822
 823         if (!saa711x_has_reg(state->ident, R_D0_B_HORIZ_PRESCALING)) {
 824                 /* Decoder only supports 720 columns and 480 or 576 lines */
 825                 if (width != 720)
 826                         return -EINVAL;
 827                 if (height != Vsrc)
 828                         return -EINVAL;
 829         }
 830
 831         state->width = width;
 832         state->height = height;
 833
 834         if (!saa711x_has_reg(state->ident, R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH))
 835                 return 0;
 836
 837         /* probably have a valid size, let's set it */
 838         /* Set output width/height */
 839         /* width */
 840
 841         saa711x_write(sd, R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH,
 842                                         (u8) (width & 0xff));
 843         saa711x_write(sd, R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB,
 844                                         (u8) ((width >> 8) & 0xff));
 845
 846         /* Vertical Scaling uses height/2 */
 847         res = height / 2;
 848
 849         /* On 60Hz, it is using a higher Vertical Output Size */
 850         if (!is_50hz)
 851                 res += (VRES_60HZ - 480) >> 1;
 852
 853                 /* height */
 854         saa711x_write(sd, R_CE_B_VERT_OUTPUT_WINDOW_LENGTH,
 855                                         (u8) (res & 0xff));
 856         saa711x_write(sd, R_CF_B_VERT_OUTPUT_WINDOW_LENGTH_MSB,
 857                                         (u8) ((res >> 8) & 0xff));
 858
 859         /* Scaling settings */
 860         /* Hprescaler is floor(inres/outres) */
 861         HPSC = (int)(720 / width);
 862         /* 0 is not allowed (div. by zero) */
 863         HPSC = HPSC ? HPSC : 1;
 864         HFSC = (int)((1024 * 720) / (HPSC * width));
 865         /* FIXME hardcodes to "Task B"
 866          * write H prescaler integer */
 867         saa711x_write(sd, R_D0_B_HORIZ_PRESCALING,
 868                                 (u8) (HPSC & 0x3f));
 869
 870         v4l2_dbg(1, debug, sd, "Hpsc: 0x%05x, Hfsc: 0x%05x\n", HPSC, HFSC);
 871         /* write H fine-scaling (luminance) */
 872         saa711x_write(sd, R_D8_B_HORIZ_LUMA_SCALING_INC,
 873                                 (u8) (HFSC & 0xff));
 874         saa711x_write(sd, R_D9_B_HORIZ_LUMA_SCALING_INC_MSB,
 875                                 (u8) ((HFSC >> 8) & 0xff));
 876         /* write H fine-scaling (chrominance)
 877          * must be lum/2, so i'll just bitshift :) */
 878         saa711x_write(sd, R_DC_B_HORIZ_CHROMA_SCALING,
 879                                 (u8) ((HFSC >> 1) & 0xff));
 880         saa711x_write(sd, R_DD_B_HORIZ_CHROMA_SCALING_MSB,
 881                                 (u8) ((HFSC >> 9) & 0xff));
 882
 883         VSCY = (int)((1024 * Vsrc) / height);
 884         v4l2_dbg(1, debug, sd, "Vsrc: %d, Vscy: 0x%05x\n", Vsrc, VSCY);
 885
 886         /* Correct Contrast and Luminance */
 887         saa711x_write(sd, R_D5_B_LUMA_CONTRAST_CNTL,
 888                                         (u8) (64 * 1024 / VSCY));
 889         saa711x_write(sd, R_D6_B_CHROMA_SATURATION_CNTL,
 890                                         (u8) (64 * 1024 / VSCY));
 891
 892                 /* write V fine-scaling (luminance) */
 893         saa711x_write(sd, R_E0_B_VERT_LUMA_SCALING_INC,
 894                                         (u8) (VSCY & 0xff));
 895         saa711x_write(sd, R_E1_B_VERT_LUMA_SCALING_INC_MSB,
 896                                         (u8) ((VSCY >> 8) & 0xff));
 897                 /* write V fine-scaling (chrominance) */
 898         saa711x_write(sd, R_E2_B_VERT_CHROMA_SCALING_INC,
 899                                         (u8) (VSCY & 0xff));
 900         saa711x_write(sd, R_E3_B_VERT_CHROMA_SCALING_INC_MSB,
 901                                         (u8) ((VSCY >> 8) & 0xff));
 902
 903         saa711x_writeregs(sd, saa7115_cfg_reset_scaler);
 904
 905         /* Activates task "B" */
 906         saa711x_write(sd, R_80_GLOBAL_CNTL_1,
 907                                 saa711x_read(sd, R_80_GLOBAL_CNTL_1) | 0x20);
 908
 909         return 0;
 910 }
 911
 912 static void saa711x_set_v4lstd(struct v4l2_subdev *sd, v4l2_std_id std)
 913 {
 914         struct saa711x_state *state = to_state(sd);
 915
 916         /* Prevent unnecessary standard changes. During a standard
 917            change the I-Port is temporarily disabled. Any devices
 918            reading from that port can get confused.
 919            Note that s_std is also used to switch from
 920            radio to TV mode, so if a s_std is broadcast to
 921            all I2C devices then you do not want to have an unwanted
 922            side-effect here. */
 923         if (std == state->std)
 924                 return;
 925
 926         state->std = std;
 927
 928         // This works for NTSC-M, SECAM-L and the 50Hz PAL variants.
 929         if (std & V4L2_STD_525_60) {
 930                 v4l2_dbg(1, debug, sd, "decoder set standard 60 Hz\n");
 931                 saa711x_writeregs(sd, saa7115_cfg_60hz_video);
 932                 saa711x_set_size(sd, 720, 480);
 933         } else {
 934                 v4l2_dbg(1, debug, sd, "decoder set standard 50 Hz\n");
 935                 saa711x_writeregs(sd, saa7115_cfg_50hz_video);
 936                 saa711x_set_size(sd, 720, 576);
 937         }
 938
 939         /* Register 0E - Bits D6-D4 on NO-AUTO mode
 940                 (SAA7111 and SAA7113 doesn't have auto mode)
 941             50 Hz / 625 lines           60 Hz / 525 lines
 942         000 PAL BGDHI (4.43Mhz)         NTSC M (3.58MHz)
 943         001 NTSC 4.43 (50 Hz)           PAL 4.43 (60 Hz)
 944         010 Combination-PAL N (3.58MHz) NTSC 4.43 (60 Hz)
 945         011 NTSC N (3.58MHz)            PAL M (3.58MHz)
 946         100 reserved                    NTSC-Japan (3.58MHz)
 947         */
 948         if (state->ident <= V4L2_IDENT_SAA7113) {
 949                 u8 reg = saa711x_read(sd, R_0E_CHROMA_CNTL_1) & 0x8f;
 950
 951                 if (std == V4L2_STD_PAL_M) {
 952                         reg |= 0x30;
 953                 } else if (std == V4L2_STD_PAL_Nc) {
 954                         reg |= 0x20;
 955                 } else if (std == V4L2_STD_PAL_60) {
 956                         reg |= 0x10;
 957                 } else if (std == V4L2_STD_NTSC_M_JP) {
 958                         reg |= 0x40;
 959                 } else if (std & V4L2_STD_SECAM) {
 960                         reg |= 0x50;
 961                 }
 962                 saa711x_write(sd, R_0E_CHROMA_CNTL_1, reg);
 963         } else {
 964                 /* restart task B if needed */
 965                 int taskb = saa711x_read(sd, R_80_GLOBAL_CNTL_1) & 0x10;
 966
 967                 if (taskb && state->ident == V4L2_IDENT_SAA7114) {
 968                         saa711x_writeregs(sd, saa7115_cfg_vbi_on);
 969                 }
 970
 971                 /* switch audio mode too! */
 972                 saa711x_s_clock_freq(sd, state->audclk_freq);
 973         }
 974 }
 975
 976 /* setup the sliced VBI lcr registers according to the sliced VBI format */
 977 static void saa711x_set_lcr(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt)
 978 {
 979         struct saa711x_state *state = to_state(sd);
 980         int is_50hz = (state->std & V4L2_STD_625_50);
 981         u8 lcr[24];
 982         int i, x;
 983
 984 #if 1
 985         /* saa7113/7114/7118 VBI support are experimental */
 986         if (!saa711x_has_reg(state->ident, R_41_LCR_BASE))
 987                 return;
 988
 989 #else
 990         /* SAA7113 and SAA7118 also should support VBI - Need testing */
 991         if (state->ident != V4L2_IDENT_SAA7115)
 992                 return;
 993 #endif
 994
 995         for (i = 0; i <= 23; i++)
 996                 lcr[i] = 0xff;
 997
 998         if (fmt == NULL) {
 999                 /* raw VBI */
1000                 if (is_50hz)
1001                         for (i = 6; i <= 23; i++)
1002                                 lcr[i] = 0xdd;
1003                 else
1004                         for (i = 10; i <= 21; i++)
1005                                 lcr[i] = 0xdd;
1006         } else {
1007                 /* sliced VBI */
1008                 /* first clear lines that cannot be captured */
1009                 if (is_50hz) {
1010                         for (i = 0; i <= 5; i++)
1011                                 fmt->service_lines[0][i] =
1012                                         fmt->service_lines[1][i] = 0;
1013                 }
1014                 else {
1015                         for (i = 0; i <= 9; i++)
1016                                 fmt->service_lines[0][i] =
1017                                         fmt->service_lines[1][i] = 0;
1018                         for (i = 22; i <= 23; i++)
1019                                 fmt->service_lines[0][i] =
1020                                         fmt->service_lines[1][i] = 0;
1021                 }
1022
1023                 /* Now set the lcr values according to the specified service */
1024                 for (i = 6; i <= 23; i++) {
1025                         lcr[i] = 0;
1026                         for (x = 0; x <= 1; x++) {
1027                                 switch (fmt->service_lines[1-x][i]) {
1028                                         case 0:
1029                                                 lcr[i] |= 0xf << (4 * x);
1030                                                 break;
1031                                         case V4L2_SLICED_TELETEXT_B:
1032                                                 lcr[i] |= 1 << (4 * x);
1033                                                 break;
1034                                         case V4L2_SLICED_CAPTION_525:
1035                                                 lcr[i] |= 4 << (4 * x);
1036                                                 break;
1037                                         case V4L2_SLICED_WSS_625:
1038                                                 lcr[i] |= 5 << (4 * x);
1039                                                 break;
1040                                         case V4L2_SLICED_VPS:
1041                                                 lcr[i] |= 7 << (4 * x);
1042                                                 break;
1043                                 }
1044                         }
1045                 }
1046         }
1047
1048         /* write the lcr registers */
1049         for (i = 2; i <= 23; i++) {
1050                 saa711x_write(sd, i - 2 + R_41_LCR_BASE, lcr[i]);
1051         }
1052
1053         /* enable/disable raw VBI capturing */
1054         saa711x_writeregs(sd, fmt == NULL ?
1055                                 saa7115_cfg_vbi_on :
1056                                 saa7115_cfg_vbi_off);
1057 }
1058
1059 static int saa711x_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *sliced)
1060 {
1061         static u16 lcr2vbi[] = {
1062                 0, V4L2_SLICED_TELETEXT_B, 0,   /* 1 */
1063                 0, V4L2_SLICED_CAPTION_525,     /* 4 */
1064                 V4L2_SLICED_WSS_625, 0,         /* 5 */
1065                 V4L2_SLICED_VPS, 0, 0, 0, 0,    /* 7 */
1066                 0, 0, 0, 0
1067         };
1068         int i;
1069
1070         memset(sliced, 0, sizeof(*sliced));
1071         /* done if using raw VBI */
1072         if (saa711x_read(sd, R_80_GLOBAL_CNTL_1) & 0x10)
1073                 return 0;
1074         for (i = 2; i <= 23; i++) {
1075                 u8 v = saa711x_read(sd, i - 2 + R_41_LCR_BASE);
1076
1077                 sliced->service_lines[0][i] = lcr2vbi[v >> 4];
1078                 sliced->service_lines[1][i] = lcr2vbi[v & 0xf];
1079                 sliced->service_set |=
1080                         sliced->service_lines[0][i] | sliced->service_lines[1][i];
1081         }
1082         return 0;
1083 }
1084
1085 static int saa711x_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
1086 {
1087         saa711x_set_lcr(sd, NULL);
1088         return 0;
1089 }
1090
1091 static int saa711x_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt)
1092 {
1093         saa711x_set_lcr(sd, fmt);
1094         return 0;
1095 }
1096
1097 static int saa711x_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *fmt)
1098 {
1099         if (fmt->code != V4L2_MBUS_FMT_FIXED)
1100                 return -EINVAL;
1101         fmt->field = V4L2_FIELD_INTERLACED;
1102         fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
1103         return saa711x_set_size(sd, fmt->width, fmt->height);
1104 }
1105
1106 /* Decode the sliced VBI data stream as created by the saa7115.
1107    The format is described in the saa7115 datasheet in Tables 25 and 26
1108    and in Figure 33.
1109    The current implementation uses SAV/EAV codes and not the ancillary data
1110    headers. The vbi->p pointer points to the R_5E_SDID byte right after the SAV
1111    code. */
1112 static int saa711x_decode_vbi_line(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi)
1113 {
1114         struct saa711x_state *state = to_state(sd);
1115         static const char vbi_no_data_pattern[] = {
1116                 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0
1117         };
1118         u8 *p = vbi->p;
1119         u32 wss;
1120         int id1, id2;   /* the ID1 and ID2 bytes from the internal header */
1121
1122         vbi->type = 0;  /* mark result as a failure */
1123         id1 = p[2];
1124         id2 = p[3];
1125         /* Note: the field bit is inverted for 60 Hz video */
1126         if (state->std & V4L2_STD_525_60)
1127                 id1 ^= 0x40;
1128
1129         /* Skip internal header, p now points to the start of the payload */
1130         p += 4;
1131         vbi->p = p;
1132
1133         /* calculate field and line number of the VBI packet (1-23) */
1134         vbi->is_second_field = ((id1 & 0x40) != 0);
1135         vbi->line = (id1 & 0x3f) << 3;
1136         vbi->line |= (id2 & 0x70) >> 4;
1137
1138         /* Obtain data type */
1139         id2 &= 0xf;
1140
1141         /* If the VBI slicer does not detect any signal it will fill up
1142            the payload buffer with 0xa0 bytes. */
1143         if (!memcmp(p, vbi_no_data_pattern, sizeof(vbi_no_data_pattern)))
1144                 return 0;
1145
1146         /* decode payloads */
1147         switch (id2) {
1148         case 1:
1149                 vbi->type = V4L2_SLICED_TELETEXT_B;
1150                 break;
1151         case 4:
1152                 if (!saa711x_odd_parity(p[0]) || !saa711x_odd_parity(p[1]))
1153                         return 0;
1154                 vbi->type = V4L2_SLICED_CAPTION_525;
1155                 break;
1156         case 5:
1157                 wss = saa711x_decode_wss(p);
1158                 if (wss == -1)
1159                         return 0;
1160                 p[0] = wss & 0xff;
1161                 p[1] = wss >> 8;
1162                 vbi->type = V4L2_SLICED_WSS_625;
1163                 break;
1164         case 7:
1165                 if (saa711x_decode_vps(p, p) != 0)
1166                         return 0;
1167                 vbi->type = V4L2_SLICED_VPS;
1168                 break;
1169         default:
1170                 break;
1171         }
1172         return 0;
1173 }
1174
1175 /* ============ SAA7115 AUDIO settings (end) ============= */
1176
1177 static int saa711x_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1178 {
1179         struct saa711x_state *state = to_state(sd);
1180         int status;
1181
1182         if (state->radio)
1183                 return 0;
1184         status = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
1185
1186         v4l2_dbg(1, debug, sd, "status: 0x%02x\n", status);
1187         vt->signal = ((status & (1 << 6)) == 0) ? 0xffff : 0x0;
1188         return 0;
1189 }
1190
1191 static int saa711x_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
1192 {
1193         struct saa711x_state *state = to_state(sd);
1194
1195         state->radio = 0;
1196         saa711x_set_v4lstd(sd, std);
1197         return 0;
1198 }
1199
1200 static int saa711x_s_radio(struct v4l2_subdev *sd)
1201 {
1202         struct saa711x_state *state = to_state(sd);
1203
1204         state->radio = 1;
1205         return 0;
1206 }
1207
1208 static int saa711x_s_routing(struct v4l2_subdev *sd,
1209                              u32 input, u32 output, u32 config)
1210 {
1211         struct saa711x_state *state = to_state(sd);
1212         u8 mask = (state->ident <= V4L2_IDENT_SAA7111A) ? 0xf8 : 0xf0;
1213
1214         v4l2_dbg(1, debug, sd, "decoder set input %d output %d\n",
1215                 input, output);
1216
1217         /* saa7111/3 does not have these inputs */
1218         if (state->ident <= V4L2_IDENT_SAA7113 &&
1219             (input == SAA7115_COMPOSITE4 ||
1220              input == SAA7115_COMPOSITE5)) {
1221                 return -EINVAL;
1222         }
1223         if (input > SAA7115_SVIDEO3)
1224                 return -EINVAL;
1225         if (state->input == input && state->output == output)
1226                 return 0;
1227         v4l2_dbg(1, debug, sd, "now setting %s input %s output\n",
1228                 (input >= SAA7115_SVIDEO0) ? "S-Video" : "Composite",
1229                 (output == SAA7115_IPORT_ON) ? "iport on" : "iport off");
1230         state->input = input;
1231
1232         /* saa7111 has slightly different input numbering */
1233         if (state->ident <= V4L2_IDENT_SAA7111A) {
1234                 if (input >= SAA7115_COMPOSITE4)
1235                         input -= 2;
1236                 /* saa7111 specific */
1237                 saa711x_write(sd, R_10_CHROMA_CNTL_2,
1238                                 (saa711x_read(sd, R_10_CHROMA_CNTL_2) & 0x3f) |
1239                                 ((output & 0xc0) ^ 0x40));
1240                 saa711x_write(sd, R_13_RT_X_PORT_OUT_CNTL,
1241                                 (saa711x_read(sd, R_13_RT_X_PORT_OUT_CNTL) & 0xf0) |
1242                                 ((output & 2) ? 0x0a : 0));
1243         }
1244
1245         /* select mode */
1246         saa711x_write(sd, R_02_INPUT_CNTL_1,
1247                       (saa711x_read(sd, R_02_INPUT_CNTL_1) & mask) |
1248                        input);
1249
1250         /* bypass chrominance trap for S-Video modes */
1251         saa711x_write(sd, R_09_LUMA_CNTL,
1252                         (saa711x_read(sd, R_09_LUMA_CNTL) & 0x7f) |
1253                         (state->input >= SAA7115_SVIDEO0 ? 0x80 : 0x0));
1254
1255         state->output = output;
1256         if (state->ident == V4L2_IDENT_SAA7114 ||
1257                         state->ident == V4L2_IDENT_SAA7115) {
1258                 saa711x_write(sd, R_83_X_PORT_I_O_ENA_AND_OUT_CLK,
1259                                 (saa711x_read(sd, R_83_X_PORT_I_O_ENA_AND_OUT_CLK) & 0xfe) |
1260                                 (state->output & 0x01));
1261         }
1262         return 0;
1263 }
1264
1265 static int saa711x_s_gpio(struct v4l2_subdev *sd, u32 val)
1266 {
1267         struct saa711x_state *state = to_state(sd);
1268
1269         if (state->ident > V4L2_IDENT_SAA7111A)
1270                 return -EINVAL;
1271         saa711x_write(sd, 0x11, (saa711x_read(sd, 0x11) & 0x7f) |
1272                 (val ? 0x80 : 0));
1273         return 0;
1274 }
1275
1276 static int saa711x_s_stream(struct v4l2_subdev *sd, int enable)
1277 {
1278         struct saa711x_state *state = to_state(sd);
1279
1280         v4l2_dbg(1, debug, sd, "%s output\n",
1281                         enable ? "enable" : "disable");
1282
1283         if (state->enable == enable)
1284                 return 0;
1285         state->enable = enable;
1286         if (!saa711x_has_reg(state->ident, R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED))
1287                 return 0;
1288         saa711x_write(sd, R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, state->enable);
1289         return 0;
1290 }
1291
1292 static int saa711x_s_crystal_freq(struct v4l2_subdev *sd, u32 freq, u32 flags)
1293 {
1294         struct saa711x_state *state = to_state(sd);
1295
1296         if (freq != SAA7115_FREQ_32_11_MHZ && freq != SAA7115_FREQ_24_576_MHZ)
1297                 return -EINVAL;
1298         state->crystal_freq = freq;
1299         state->cgcdiv = (flags & SAA7115_FREQ_FL_CGCDIV) ? 3 : 4;
1300         state->ucgc = (flags & SAA7115_FREQ_FL_UCGC) ? 1 : 0;
1301         state->apll = (flags & SAA7115_FREQ_FL_APLL) ? 1 : 0;
1302         saa711x_s_clock_freq(sd, state->audclk_freq);
1303         return 0;
1304 }
1305
1306 static int saa711x_reset(struct v4l2_subdev *sd, u32 val)
1307 {
1308         v4l2_dbg(1, debug, sd, "decoder RESET\n");
1309         saa711x_writeregs(sd, saa7115_cfg_reset_scaler);
1310         return 0;
1311 }
1312
1313 static int saa711x_g_vbi_data(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_data *data)
1314 {
1315         /* Note: the internal field ID is inverted for NTSC,
1316            so data->field 0 maps to the saa7115 even field,
1317            whereas for PAL it maps to the saa7115 odd field. */
1318         switch (data->id) {
1319         case V4L2_SLICED_WSS_625:
1320                 if (saa711x_read(sd, 0x6b) & 0xc0)
1321                         return -EIO;
1322                 data->data[0] = saa711x_read(sd, 0x6c);
1323                 data->data[1] = saa711x_read(sd, 0x6d);
1324                 return 0;
1325         case V4L2_SLICED_CAPTION_525:
1326                 if (data->field == 0) {
1327                         /* CC */
1328                         if (saa711x_read(sd, 0x66) & 0x30)
1329                                 return -EIO;
1330                         data->data[0] = saa711x_read(sd, 0x69);
1331                         data->data[1] = saa711x_read(sd, 0x6a);
1332                         return 0;
1333                 }
1334                 /* XDS */
1335                 if (saa711x_read(sd, 0x66) & 0xc0)
1336                         return -EIO;
1337                 data->data[0] = saa711x_read(sd, 0x67);
1338                 data->data[1] = saa711x_read(sd, 0x68);
1339                 return 0;
1340         default:
1341                 return -EINVAL;
1342         }
1343 }
1344
1345 static int saa711x_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
1346 {
1347         struct saa711x_state *state = to_state(sd);
1348         int reg1e;
1349
1350         *std = V4L2_STD_ALL;
1351         if (state->ident != V4L2_IDENT_SAA7115) {
1352                 int reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
1353
1354                 if (reg1f & 0x20)
1355                         *std = V4L2_STD_525_60;
1356                 else
1357                         *std = V4L2_STD_625_50;
1358
1359                 return 0;
1360         }
1361
1362         reg1e = saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC);
1363
1364         switch (reg1e & 0x03) {
1365         case 1:
1366                 *std = V4L2_STD_NTSC;
1367                 break;
1368         case 2:
1369                 *std = V4L2_STD_PAL;
1370                 break;
1371         case 3:
1372                 *std = V4L2_STD_SECAM;
1373                 break;
1374         default:
1375                 break;
1376         }
1377         return 0;
1378 }
1379
1380 static int saa711x_g_input_status(struct v4l2_subdev *sd, u32 *status)
1381 {
1382         struct saa711x_state *state = to_state(sd);
1383         int reg1e = 0x80;
1384         int reg1f;
1385
1386         *status = V4L2_IN_ST_NO_SIGNAL;
1387         if (state->ident == V4L2_IDENT_SAA7115)
1388                 reg1e = saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC);
1389         reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
1390         if ((reg1f & 0xc1) == 0x81 && (reg1e & 0xc0) == 0x80)
1391                 *status = 0;
1392         return 0;
1393 }
1394
1395 #ifdef CONFIG_VIDEO_ADV_DEBUG
1396 static int saa711x_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1397 {
1398         struct i2c_client *client = v4l2_get_subdevdata(sd);
1399
1400         if (!v4l2_chip_match_i2c_client(client, &reg->match))
1401                 return -EINVAL;
1402         if (!capable(CAP_SYS_ADMIN))
1403                 return -EPERM;
1404         reg->val = saa711x_read(sd, reg->reg & 0xff);
1405         reg->size = 1;
1406         return 0;
1407 }
1408
1409 static int saa711x_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1410 {
1411         struct i2c_client *client = v4l2_get_subdevdata(sd);
1412
1413         if (!v4l2_chip_match_i2c_client(client, &reg->match))
1414                 return -EINVAL;
1415         if (!capable(CAP_SYS_ADMIN))
1416                 return -EPERM;
1417         saa711x_write(sd, reg->reg & 0xff, reg->val & 0xff);
1418         return 0;
1419 }
1420 #endif
1421
1422 static int saa711x_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
1423 {
1424         struct saa711x_state *state = to_state(sd);
1425         struct i2c_client *client = v4l2_get_subdevdata(sd);
1426
1427         return v4l2_chip_ident_i2c_client(client, chip, state->ident, 0);
1428 }
1429
1430 static int saa711x_log_status(struct v4l2_subdev *sd)
1431 {
1432         struct saa711x_state *state = to_state(sd);
1433         int reg1e, reg1f;
1434         int signalOk;
1435         int vcr;
1436
1437         v4l2_info(sd, "Audio frequency: %d Hz\n", state->audclk_freq);
1438         if (state->ident != V4L2_IDENT_SAA7115) {
1439                 /* status for the saa7114 */
1440                 reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
1441                 signalOk = (reg1f & 0xc1) == 0x81;
1442                 v4l2_info(sd, "Video signal:    %s\n", signalOk ? "ok" : "bad");
1443                 v4l2_info(sd, "Frequency:       %s\n", (reg1f & 0x20) ? "60 Hz" : "50 Hz");
1444                 return 0;
1445         }
1446
1447         /* status for the saa7115 */
1448         reg1e = saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC);
1449         reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
1450
1451         signalOk = (reg1f & 0xc1) == 0x81 && (reg1e & 0xc0) == 0x80;
1452         vcr = !(reg1f & 0x10);
1453
1454         if (state->input >= 6)
1455                 v4l2_info(sd, "Input:           S-Video %d\n", state->input - 6);
1456         else
1457                 v4l2_info(sd, "Input:           Composite %d\n", state->input);
1458         v4l2_info(sd, "Video signal:    %s\n", signalOk ? (vcr ? "VCR" : "broadcast/DVD") : "bad");
1459         v4l2_info(sd, "Frequency:       %s\n", (reg1f & 0x20) ? "60 Hz" : "50 Hz");
1460
1461         switch (reg1e & 0x03) {
1462         case 1:
1463                 v4l2_info(sd, "Detected format: NTSC\n");
1464                 break;
1465         case 2:
1466                 v4l2_info(sd, "Detected format: PAL\n");
1467                 break;
1468         case 3:
1469                 v4l2_info(sd, "Detected format: SECAM\n");
1470                 break;
1471         default:
1472                 v4l2_info(sd, "Detected format: BW/No color\n");
1473                 break;
1474         }
1475         v4l2_info(sd, "Width, Height:   %d, %d\n", state->width, state->height);
1476         v4l2_ctrl_handler_log_status(&state->hdl, sd->name);
1477         return 0;
1478 }
1479
1480 /* ----------------------------------------------------------------------- */
1481
1482 static const struct v4l2_ctrl_ops saa711x_ctrl_ops = {
1483         .s_ctrl = saa711x_s_ctrl,
1484         .g_volatile_ctrl = saa711x_g_volatile_ctrl,
1485 };
1486
1487 static const struct v4l2_subdev_core_ops saa711x_core_ops = {
1488         .log_status = saa711x_log_status,
1489         .g_chip_ident = saa711x_g_chip_ident,
1490         .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
1491         .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
1492         .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
1493         .g_ctrl = v4l2_subdev_g_ctrl,
1494         .s_ctrl = v4l2_subdev_s_ctrl,
1495         .queryctrl = v4l2_subdev_queryctrl,
1496         .querymenu = v4l2_subdev_querymenu,
1497         .s_std = saa711x_s_std,
1498         .reset = saa711x_reset,
1499         .s_gpio = saa711x_s_gpio,
1500 #ifdef CONFIG_VIDEO_ADV_DEBUG
1501         .g_register = saa711x_g_register,
1502         .s_register = saa711x_s_register,
1503 #endif
1504 };
1505
1506 static const struct v4l2_subdev_tuner_ops saa711x_tuner_ops = {
1507         .s_radio = saa711x_s_radio,
1508         .g_tuner = saa711x_g_tuner,
1509 };
1510
1511 static const struct v4l2_subdev_audio_ops saa711x_audio_ops = {
1512         .s_clock_freq = saa711x_s_clock_freq,
1513 };
1514
1515 static const struct v4l2_subdev_video_ops saa711x_video_ops = {
1516         .s_routing = saa711x_s_routing,
1517         .s_crystal_freq = saa711x_s_crystal_freq,
1518         .s_mbus_fmt = saa711x_s_mbus_fmt,
1519         .s_stream = saa711x_s_stream,
1520         .querystd = saa711x_querystd,
1521         .g_input_status = saa711x_g_input_status,
1522 };
1523
1524 static const struct v4l2_subdev_vbi_ops saa711x_vbi_ops = {
1525         .g_vbi_data = saa711x_g_vbi_data,
1526         .decode_vbi_line = saa711x_decode_vbi_line,
1527         .g_sliced_fmt = saa711x_g_sliced_fmt,
1528         .s_sliced_fmt = saa711x_s_sliced_fmt,
1529         .s_raw_fmt = saa711x_s_raw_fmt,
1530 };
1531
1532 static const struct v4l2_subdev_ops saa711x_ops = {
1533         .core = &saa711x_core_ops,
1534         .tuner = &saa711x_tuner_ops,
1535         .audio = &saa711x_audio_ops,
1536         .video = &saa711x_video_ops,
1537         .vbi = &saa711x_vbi_ops,
1538 };
1539
1540 /* ----------------------------------------------------------------------- */
1541
1542 static int saa711x_probe(struct i2c_client *client,
1543                          const struct i2c_device_id *id)
1544 {
1545         struct saa711x_state *state;
1546         struct v4l2_subdev *sd;
1547         struct v4l2_ctrl_handler *hdl;
1548         int i;
1549         char name[17];
1550         char chip_id;
1551         int autodetect = !id || id->driver_data == 1;
1552
1553         /* Check if the adapter supports the needed features */
1554         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1555                 return -EIO;
1556
1557         for (i = 0; i < 0x0f; i++) {
1558                 i2c_smbus_write_byte_data(client, 0, i);
1559                 name[i] = (i2c_smbus_read_byte_data(client, 0) & 0x0f) + '0';
1560                 if (name[i] > '9')
1561                         name[i] += 'a' - '9' - 1;
1562         }
1563         name[i] = '\0';
1564
1565         chip_id = name[5];
1566
1567         /* Check whether this chip is part of the saa711x series */
1568         if (memcmp(name + 1, "f711", 4)) {
1569                 v4l_dbg(1, debug, client, "chip found @ 0x%x (ID %s) does not match a known saa711x chip.\n",
1570                         client->addr << 1, name);
1571                 return -ENODEV;
1572         }
1573
1574         /* Safety check */
1575         if (!autodetect && id->name[6] != chip_id) {
1576                 v4l_warn(client, "found saa711%c while %s was expected\n",
1577                          chip_id, id->name);
1578         }
1579         snprintf(client->name, sizeof(client->name), "saa711%c", chip_id);
1580         v4l_info(client, "saa711%c found (%s) @ 0x%x (%s)\n", chip_id, name,
1581                  client->addr << 1, client->adapter->name);
1582
1583         state = kzalloc(sizeof(struct saa711x_state), GFP_KERNEL);
1584         if (state == NULL)
1585                 return -ENOMEM;
1586         sd = &state->sd;
1587         v4l2_i2c_subdev_init(sd, client, &saa711x_ops);
1588
1589         hdl = &state->hdl;
1590         v4l2_ctrl_handler_init(hdl, 6);
1591         /* add in ascending ID order */
1592         v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
1593                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1594         v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
1595                         V4L2_CID_CONTRAST, 0, 127, 1, 64);
1596         v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
1597                         V4L2_CID_SATURATION, 0, 127, 1, 64);
1598         v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
1599                         V4L2_CID_HUE, -128, 127, 1, 0);
1600         state->agc = v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
1601                         V4L2_CID_CHROMA_AGC, 0, 1, 1, 1);
1602         state->gain = v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
1603                         V4L2_CID_CHROMA_GAIN, 0, 127, 1, 40);
1604         state->gain->is_volatile = 1;
1605         sd->ctrl_handler = hdl;
1606         if (hdl->error) {
1607                 int err = hdl->error;
1608
1609                 v4l2_ctrl_handler_free(hdl);
1610                 kfree(state);
1611                 return err;
1612         }
1613         state->agc->flags |= V4L2_CTRL_FLAG_UPDATE;
1614         v4l2_ctrl_cluster(2, &state->agc);
1615
1616         state->input = -1;
1617         state->output = SAA7115_IPORT_ON;
1618         state->enable = 1;
1619         state->radio = 0;
1620         switch (chip_id) {
1621         case '1':
1622                 state->ident = V4L2_IDENT_SAA7111;
1623                 if (saa711x_read(sd, R_00_CHIP_VERSION) & 0xf0) {
1624                         v4l_info(client, "saa7111a variant found\n");
1625                         state->ident = V4L2_IDENT_SAA7111A;
1626                 }
1627                 break;
1628         case '3':
1629                 state->ident = V4L2_IDENT_SAA7113;
1630                 break;
1631         case '4':
1632                 state->ident = V4L2_IDENT_SAA7114;
1633                 break;
1634         case '5':
1635                 state->ident = V4L2_IDENT_SAA7115;
1636                 break;
1637         case '8':
1638                 state->ident = V4L2_IDENT_SAA7118;
1639                 break;
1640         default:
1641                 state->ident = V4L2_IDENT_SAA7111;
1642                 v4l2_info(sd, "WARNING: Chip is not known - Falling back to saa7111\n");
1643                 break;
1644         }
1645
1646         state->audclk_freq = 48000;
1647
1648         v4l2_dbg(1, debug, sd, "writing init values\n");
1649
1650         /* init to 60hz/48khz */
1651         state->crystal_freq = SAA7115_FREQ_24_576_MHZ;
1652         switch (state->ident) {
1653         case V4L2_IDENT_SAA7111:
1654         case V4L2_IDENT_SAA7111A:
1655                 saa711x_writeregs(sd, saa7111_init);
1656                 break;
1657         case V4L2_IDENT_SAA7113:
1658                 saa711x_writeregs(sd, saa7113_init);
1659                 break;
1660         default:
1661                 state->crystal_freq = SAA7115_FREQ_32_11_MHZ;
1662                 saa711x_writeregs(sd, saa7115_init_auto_input);
1663         }
1664         if (state->ident > V4L2_IDENT_SAA7111A)
1665                 saa711x_writeregs(sd, saa7115_init_misc);
1666         saa711x_set_v4lstd(sd, V4L2_STD_NTSC);
1667         v4l2_ctrl_handler_setup(hdl);
1668
1669         v4l2_dbg(1, debug, sd, "status: (1E) 0x%02x, (1F) 0x%02x\n",
1670                 saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC),
1671                 saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC));
1672         return 0;
1673 }
1674
1675 /* ----------------------------------------------------------------------- */
1676
1677 static int saa711x_remove(struct i2c_client *client)
1678 {
1679         struct v4l2_subdev *sd = i2c_get_clientdata(client);
1680
1681         v4l2_device_unregister_subdev(sd);
1682         v4l2_ctrl_handler_free(sd->ctrl_handler);
1683         kfree(to_state(sd));
1684         return 0;
1685 }
1686
1687 static const struct i2c_device_id saa711x_id[] = {
1688         { "saa7115_auto", 1 }, /* autodetect */
1689         { "saa7111", 0 },
1690         { "saa7113", 0 },
1691         { "saa7114", 0 },
1692         { "saa7115", 0 },
1693         { "saa7118", 0 },
1694         { }
1695 };
1696 MODULE_DEVICE_TABLE(i2c, saa711x_id);
1697
1698 static struct i2c_driver saa711x_driver = {
1699         .driver = {
1700                 .owner  = THIS_MODULE,
1701                 .name   = "saa7115",
1702         },
1703         .probe          = saa711x_probe,
1704         .remove         = saa711x_remove,
1705         .id_table       = saa711x_id,
1706 };
1707
1708 static __init int init_saa711x(void)
1709 {
1710         return i2c_add_driver(&saa711x_driver);
1711 }
1712
1713 static __exit void exit_saa711x(void)
1714 {
1715         i2c_del_driver(&saa711x_driver);
1716 }
1717
1718 module_init(init_saa711x);
1719 module_exit(exit_saa711x);