linux/drivers/media/usb/gspca/m5602/m5602_s5k4aa.c
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   1/*
   2 * Driver for the s5k4aa sensor
   3 *
   4 * Copyright (C) 2008 Erik Andrén
   5 * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
   6 * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
   7 *
   8 * Portions of code to USB interface and ALi driver software,
   9 * Copyright (c) 2006 Willem Duinker
  10 * v4l2 interface modeled after the V4L2 driver
  11 * for SN9C10x PC Camera Controllers
  12 *
  13 * This program is free software; you can redistribute it and/or
  14 * modify it under the terms of the GNU General Public License as
  15 * published by the Free Software Foundation, version 2.
  16 *
  17 */
  18
  19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  20
  21#include "m5602_s5k4aa.h"
  22
  23static const unsigned char preinit_s5k4aa[][4] = {
  24        {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
  25        {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
  26        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  27        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
  28        {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
  29        {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00},
  30        {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00},
  31
  32        {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  33        {BRIDGE, M5602_XB_GPIO_DAT, 0x08, 0x00},
  34        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0xb0, 0x00},
  35        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0x80, 0x00},
  36        {BRIDGE, M5602_XB_GPIO_EN_H, 0x3f, 0x00},
  37        {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3f, 0x00},
  38        {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
  39        {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  40        {BRIDGE, M5602_XB_GPIO_DAT, 0x00, 0x00},
  41        {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00},
  42        {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
  43        {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
  44        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  45        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
  46        {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
  47        {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00},
  48
  49        {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
  50        {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
  51        {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  52        {BRIDGE, M5602_XB_GPIO_DAT, 0x14, 0x00},
  53        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  54        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xf0, 0x00},
  55        {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  56        {BRIDGE, M5602_XB_GPIO_DAT, 0x1c, 0x00},
  57        {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
  58        {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06, 0x00},
  59        {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
  60        {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
  61        {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x20, 0x00},
  62
  63        {SENSOR, S5K4AA_PAGE_MAP, 0x00, 0x00}
  64};
  65
  66static const unsigned char init_s5k4aa[][4] = {
  67        {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
  68        {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
  69        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  70        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
  71        {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
  72        {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00},
  73        {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00},
  74
  75        {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  76        {BRIDGE, M5602_XB_GPIO_DAT, 0x08, 0x00},
  77        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0xb0, 0x00},
  78        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0x80, 0x00},
  79        {BRIDGE, M5602_XB_GPIO_EN_H, 0x3f, 0x00},
  80        {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3f, 0x00},
  81        {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
  82        {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  83        {BRIDGE, M5602_XB_GPIO_DAT, 0x00, 0x00},
  84        {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00},
  85        {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
  86        {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
  87        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  88        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
  89        {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
  90        {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00},
  91
  92        {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
  93        {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
  94        {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  95        {BRIDGE, M5602_XB_GPIO_DAT, 0x14, 0x00},
  96        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  97        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xf0, 0x00},
  98        {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  99        {BRIDGE, M5602_XB_GPIO_DAT, 0x1c, 0x00},
 100        {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
 101        {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06, 0x00},
 102        {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
 103        {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
 104        {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x20, 0x00},
 105
 106        {SENSOR, S5K4AA_PAGE_MAP, 0x07, 0x00},
 107        {SENSOR, 0x36, 0x01, 0x00},
 108        {SENSOR, S5K4AA_PAGE_MAP, 0x00, 0x00},
 109        {SENSOR, 0x7b, 0xff, 0x00},
 110        {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 111        {SENSOR, 0x0c, 0x05, 0x00},
 112        {SENSOR, 0x02, 0x0e, 0x00},
 113        {SENSOR, S5K4AA_READ_MODE, 0xa0, 0x00},
 114        {SENSOR, 0x37, 0x00, 0x00},
 115};
 116
 117static const unsigned char VGA_s5k4aa[][4] = {
 118        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00},
 119        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
 120        {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
 121        {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00},
 122        {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00},
 123        {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00},
 124        {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00},
 125        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 126        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 127        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 128        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 129        /* VSYNC_PARA, VSYNC_PARA : img height 480 = 0x01e0 */
 130        {BRIDGE, M5602_XB_VSYNC_PARA, 0x01, 0x00},
 131        {BRIDGE, M5602_XB_VSYNC_PARA, 0xe0, 0x00},
 132        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 133        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 134        {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00},
 135        {BRIDGE, M5602_XB_SIG_INI, 0x02, 0x00},
 136        {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 137        {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 138        /* HSYNC_PARA, HSYNC_PARA : img width 640 = 0x0280 */
 139        {BRIDGE, M5602_XB_HSYNC_PARA, 0x02, 0x00},
 140        {BRIDGE, M5602_XB_HSYNC_PARA, 0x80, 0x00},
 141        {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00},
 142        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
 143        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xa0, 0x00}, /* 48 MHz */
 144
 145        {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 146        {SENSOR, S5K4AA_READ_MODE, S5K4AA_RM_H_FLIP | S5K4AA_RM_ROW_SKIP_2X
 147                | S5K4AA_RM_COL_SKIP_2X, 0x00},
 148        /* 0x37 : Fix image stability when light is too bright and improves
 149         * image quality in 640x480, but worsens it in 1280x1024 */
 150        {SENSOR, 0x37, 0x01, 0x00},
 151        /* ROWSTART_HI, ROWSTART_LO : 10 + (1024-960)/2 = 42 = 0x002a */
 152        {SENSOR, S5K4AA_ROWSTART_HI, 0x00, 0x00},
 153        {SENSOR, S5K4AA_ROWSTART_LO, 0x29, 0x00},
 154        {SENSOR, S5K4AA_COLSTART_HI, 0x00, 0x00},
 155        {SENSOR, S5K4AA_COLSTART_LO, 0x0c, 0x00},
 156        /* window_height_hi, window_height_lo : 960 = 0x03c0 */
 157        {SENSOR, S5K4AA_WINDOW_HEIGHT_HI, 0x03, 0x00},
 158        {SENSOR, S5K4AA_WINDOW_HEIGHT_LO, 0xc0, 0x00},
 159        /* window_width_hi, window_width_lo : 1280 = 0x0500 */
 160        {SENSOR, S5K4AA_WINDOW_WIDTH_HI, 0x05, 0x00},
 161        {SENSOR, S5K4AA_WINDOW_WIDTH_LO, 0x00, 0x00},
 162        {SENSOR, S5K4AA_H_BLANK_HI__, 0x00, 0x00},
 163        {SENSOR, S5K4AA_H_BLANK_LO__, 0xa8, 0x00}, /* helps to sync... */
 164        {SENSOR, S5K4AA_EXPOSURE_HI, 0x01, 0x00},
 165        {SENSOR, S5K4AA_EXPOSURE_LO, 0x00, 0x00},
 166        {SENSOR, 0x11, 0x04, 0x00},
 167        {SENSOR, 0x12, 0xc3, 0x00},
 168        {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 169        {SENSOR, 0x02, 0x0e, 0x00},
 170};
 171
 172static const unsigned char SXGA_s5k4aa[][4] = {
 173        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00},
 174        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
 175        {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
 176        {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00},
 177        {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00},
 178        {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00},
 179        {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00},
 180        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 181        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 182        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 183        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 184        /* VSYNC_PARA, VSYNC_PARA : img height 1024 = 0x0400 */
 185        {BRIDGE, M5602_XB_VSYNC_PARA, 0x04, 0x00},
 186        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 187        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 188        {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 189        {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00},
 190        {BRIDGE, M5602_XB_SIG_INI, 0x02, 0x00},
 191        {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 192        {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 193        /* HSYNC_PARA, HSYNC_PARA : img width 1280 = 0x0500 */
 194        {BRIDGE, M5602_XB_HSYNC_PARA, 0x05, 0x00},
 195        {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 196        {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00},
 197        {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
 198        {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xa0, 0x00}, /* 48 MHz */
 199
 200        {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 201        {SENSOR, S5K4AA_READ_MODE, S5K4AA_RM_H_FLIP, 0x00},
 202        {SENSOR, 0x37, 0x01, 0x00},
 203        {SENSOR, S5K4AA_ROWSTART_HI, 0x00, 0x00},
 204        {SENSOR, S5K4AA_ROWSTART_LO, 0x09, 0x00},
 205        {SENSOR, S5K4AA_COLSTART_HI, 0x00, 0x00},
 206        {SENSOR, S5K4AA_COLSTART_LO, 0x0a, 0x00},
 207        {SENSOR, S5K4AA_WINDOW_HEIGHT_HI, 0x04, 0x00},
 208        {SENSOR, S5K4AA_WINDOW_HEIGHT_LO, 0x00, 0x00},
 209        {SENSOR, S5K4AA_WINDOW_WIDTH_HI, 0x05, 0x00},
 210        {SENSOR, S5K4AA_WINDOW_WIDTH_LO, 0x00, 0x00},
 211        {SENSOR, S5K4AA_H_BLANK_HI__, 0x01, 0x00},
 212        {SENSOR, S5K4AA_H_BLANK_LO__, 0xa8, 0x00},
 213        {SENSOR, S5K4AA_EXPOSURE_HI, 0x01, 0x00},
 214        {SENSOR, S5K4AA_EXPOSURE_LO, 0x00, 0x00},
 215        {SENSOR, 0x11, 0x04, 0x00},
 216        {SENSOR, 0x12, 0xc3, 0x00},
 217        {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 218        {SENSOR, 0x02, 0x0e, 0x00},
 219};
 220
 221
 222static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl);
 223static void s5k4aa_dump_registers(struct sd *sd);
 224
 225static const struct v4l2_ctrl_ops s5k4aa_ctrl_ops = {
 226        .s_ctrl = s5k4aa_s_ctrl,
 227};
 228
 229static
 230    const
 231        struct dmi_system_id s5k4aa_vflip_dmi_table[] = {
 232        {
 233                .ident = "BRUNEINIT",
 234                .matches = {
 235                        DMI_MATCH(DMI_SYS_VENDOR, "BRUNENIT"),
 236                        DMI_MATCH(DMI_PRODUCT_NAME, "BRUNENIT"),
 237                        DMI_MATCH(DMI_BOARD_VERSION, "00030D0000000001")
 238                }
 239        }, {
 240                .ident = "Fujitsu-Siemens Amilo Xa 2528",
 241                .matches = {
 242                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 243                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
 244                }
 245        }, {
 246                .ident = "Fujitsu-Siemens Amilo Xi 2428",
 247                .matches = {
 248                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 249                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2428")
 250                }
 251        }, {
 252                .ident = "Fujitsu-Siemens Amilo Xi 2528",
 253                .matches = {
 254                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 255                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2528")
 256                }
 257        }, {
 258                .ident = "Fujitsu-Siemens Amilo Xi 2550",
 259                .matches = {
 260                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 261                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550")
 262                }
 263        }, {
 264                .ident = "Fujitsu-Siemens Amilo Pa 2548",
 265                .matches = {
 266                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 267                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2548")
 268                }
 269        }, {
 270                .ident = "Fujitsu-Siemens Amilo Pi 2530",
 271                .matches = {
 272                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 273                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 2530")
 274                }
 275        }, {
 276                .ident = "MSI GX700",
 277                .matches = {
 278                        DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 279                        DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
 280                        DMI_MATCH(DMI_BIOS_DATE, "12/02/2008")
 281                }
 282        }, {
 283                .ident = "MSI GX700",
 284                .matches = {
 285                        DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 286                        DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
 287                        DMI_MATCH(DMI_BIOS_DATE, "07/26/2007")
 288                }
 289        }, {
 290                .ident = "MSI GX700",
 291                .matches = {
 292                        DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 293                        DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
 294                        DMI_MATCH(DMI_BIOS_DATE, "07/19/2007")
 295                }
 296        }, {
 297                .ident = "MSI GX700/GX705/EX700",
 298                .matches = {
 299                        DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 300                        DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700")
 301                }
 302        }, {
 303                .ident = "MSI L735",
 304                .matches = {
 305                        DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 306                        DMI_MATCH(DMI_PRODUCT_NAME, "MS-1717X")
 307                }
 308        }, {
 309                .ident = "Lenovo Y300",
 310                .matches = {
 311                        DMI_MATCH(DMI_SYS_VENDOR, "L3000 Y300"),
 312                        DMI_MATCH(DMI_PRODUCT_NAME, "Y300")
 313                }
 314        },
 315        { }
 316};
 317
 318static struct v4l2_pix_format s5k4aa_modes[] = {
 319        {
 320                640,
 321                480,
 322                V4L2_PIX_FMT_SBGGR8,
 323                V4L2_FIELD_NONE,
 324                .sizeimage =
 325                        640 * 480,
 326                .bytesperline = 640,
 327                .colorspace = V4L2_COLORSPACE_SRGB,
 328                .priv = 0
 329        },
 330        {
 331                1280,
 332                1024,
 333                V4L2_PIX_FMT_SBGGR8,
 334                V4L2_FIELD_NONE,
 335                .sizeimage =
 336                        1280 * 1024,
 337                .bytesperline = 1280,
 338                .colorspace = V4L2_COLORSPACE_SRGB,
 339                .priv = 0
 340        }
 341};
 342
 343int s5k4aa_probe(struct sd *sd)
 344{
 345        u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 346        const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75};
 347        struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 348        int i, err = 0;
 349
 350        if (force_sensor) {
 351                if (force_sensor == S5K4AA_SENSOR) {
 352                        pr_info("Forcing a %s sensor\n", s5k4aa.name);
 353                        goto sensor_found;
 354                }
 355                /* If we want to force another sensor, don't try to probe this
 356                 * one */
 357                return -ENODEV;
 358        }
 359
 360        gspca_dbg(gspca_dev, D_PROBE, "Probing for a s5k4aa sensor\n");
 361
 362        /* Preinit the sensor */
 363        for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
 364                u8 data[2] = {0x00, 0x00};
 365
 366                switch (preinit_s5k4aa[i][0]) {
 367                case BRIDGE:
 368                        err = m5602_write_bridge(sd,
 369                                                 preinit_s5k4aa[i][1],
 370                                                 preinit_s5k4aa[i][2]);
 371                        break;
 372
 373                case SENSOR:
 374                        data[0] = preinit_s5k4aa[i][2];
 375                        err = m5602_write_sensor(sd,
 376                                                  preinit_s5k4aa[i][1],
 377                                                  data, 1);
 378                        break;
 379
 380                case SENSOR_LONG:
 381                        data[0] = preinit_s5k4aa[i][2];
 382                        data[1] = preinit_s5k4aa[i][3];
 383                        err = m5602_write_sensor(sd,
 384                                                  preinit_s5k4aa[i][1],
 385                                                  data, 2);
 386                        break;
 387                default:
 388                        pr_info("Invalid stream command, exiting init\n");
 389                        return -EINVAL;
 390                }
 391        }
 392
 393        /* Test some registers, but we don't know their exact meaning yet */
 394        if (m5602_read_sensor(sd, 0x00, prod_id, 2))
 395                return -ENODEV;
 396        if (m5602_read_sensor(sd, 0x02, prod_id+2, 2))
 397                return -ENODEV;
 398        if (m5602_read_sensor(sd, 0x04, prod_id+4, 2))
 399                return -ENODEV;
 400
 401        if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
 402                return -ENODEV;
 403        else
 404                pr_info("Detected a s5k4aa sensor\n");
 405
 406sensor_found:
 407        sd->gspca_dev.cam.cam_mode = s5k4aa_modes;
 408        sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes);
 409
 410        return 0;
 411}
 412
 413int s5k4aa_start(struct sd *sd)
 414{
 415        int i, err = 0;
 416        u8 data[2];
 417        struct cam *cam = &sd->gspca_dev.cam;
 418        struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 419
 420        switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) {
 421        case 1280:
 422                gspca_dbg(gspca_dev, D_CONF, "Configuring camera for SXGA mode\n");
 423
 424                for (i = 0; i < ARRAY_SIZE(SXGA_s5k4aa); i++) {
 425                        switch (SXGA_s5k4aa[i][0]) {
 426                        case BRIDGE:
 427                                err = m5602_write_bridge(sd,
 428                                                 SXGA_s5k4aa[i][1],
 429                                                 SXGA_s5k4aa[i][2]);
 430                        break;
 431
 432                        case SENSOR:
 433                                data[0] = SXGA_s5k4aa[i][2];
 434                                err = m5602_write_sensor(sd,
 435                                                 SXGA_s5k4aa[i][1],
 436                                                 data, 1);
 437                        break;
 438
 439                        case SENSOR_LONG:
 440                                data[0] = SXGA_s5k4aa[i][2];
 441                                data[1] = SXGA_s5k4aa[i][3];
 442                                err = m5602_write_sensor(sd,
 443                                                  SXGA_s5k4aa[i][1],
 444                                                  data, 2);
 445                        break;
 446
 447                        default:
 448                                pr_err("Invalid stream command, exiting init\n");
 449                                return -EINVAL;
 450                        }
 451                }
 452                break;
 453
 454        case 640:
 455                gspca_dbg(gspca_dev, D_CONF, "Configuring camera for VGA mode\n");
 456
 457                for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) {
 458                        switch (VGA_s5k4aa[i][0]) {
 459                        case BRIDGE:
 460                                err = m5602_write_bridge(sd,
 461                                                 VGA_s5k4aa[i][1],
 462                                                 VGA_s5k4aa[i][2]);
 463                        break;
 464
 465                        case SENSOR:
 466                                data[0] = VGA_s5k4aa[i][2];
 467                                err = m5602_write_sensor(sd,
 468                                                 VGA_s5k4aa[i][1],
 469                                                 data, 1);
 470                        break;
 471
 472                        case SENSOR_LONG:
 473                                data[0] = VGA_s5k4aa[i][2];
 474                                data[1] = VGA_s5k4aa[i][3];
 475                                err = m5602_write_sensor(sd,
 476                                                  VGA_s5k4aa[i][1],
 477                                                  data, 2);
 478                        break;
 479
 480                        default:
 481                                pr_err("Invalid stream command, exiting init\n");
 482                                return -EINVAL;
 483                        }
 484                }
 485                break;
 486        }
 487        if (err < 0)
 488                return err;
 489
 490        return 0;
 491}
 492
 493int s5k4aa_init(struct sd *sd)
 494{
 495        int i, err = 0;
 496
 497        for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
 498                u8 data[2] = {0x00, 0x00};
 499
 500                switch (init_s5k4aa[i][0]) {
 501                case BRIDGE:
 502                        err = m5602_write_bridge(sd,
 503                                init_s5k4aa[i][1],
 504                                init_s5k4aa[i][2]);
 505                        break;
 506
 507                case SENSOR:
 508                        data[0] = init_s5k4aa[i][2];
 509                        err = m5602_write_sensor(sd,
 510                                init_s5k4aa[i][1], data, 1);
 511                        break;
 512
 513                case SENSOR_LONG:
 514                        data[0] = init_s5k4aa[i][2];
 515                        data[1] = init_s5k4aa[i][3];
 516                        err = m5602_write_sensor(sd,
 517                                init_s5k4aa[i][1], data, 2);
 518                        break;
 519                default:
 520                        pr_info("Invalid stream command, exiting init\n");
 521                        return -EINVAL;
 522                }
 523        }
 524
 525        if (dump_sensor)
 526                s5k4aa_dump_registers(sd);
 527
 528        return err;
 529}
 530
 531int s5k4aa_init_controls(struct sd *sd)
 532{
 533        struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
 534
 535        sd->gspca_dev.vdev.ctrl_handler = hdl;
 536        v4l2_ctrl_handler_init(hdl, 6);
 537
 538        v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_BRIGHTNESS,
 539                          0, 0x1f, 1, S5K4AA_DEFAULT_BRIGHTNESS);
 540
 541        v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_EXPOSURE,
 542                          13, 0xfff, 1, 0x100);
 543
 544        v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_GAIN,
 545                          0, 127, 1, S5K4AA_DEFAULT_GAIN);
 546
 547        v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_SHARPNESS,
 548                          0, 1, 1, 1);
 549
 550        sd->hflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_HFLIP,
 551                                      0, 1, 1, 0);
 552        sd->vflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_VFLIP,
 553                                      0, 1, 1, 0);
 554
 555        if (hdl->error) {
 556                pr_err("Could not initialize controls\n");
 557                return hdl->error;
 558        }
 559
 560        v4l2_ctrl_cluster(2, &sd->hflip);
 561
 562        return 0;
 563}
 564
 565static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
 566{
 567        struct sd *sd = (struct sd *) gspca_dev;
 568        u8 data = S5K4AA_PAGE_MAP_2;
 569        int err;
 570
 571        gspca_dbg(gspca_dev, D_CONF, "Set exposure to %d\n", val);
 572        err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 573        if (err < 0)
 574                return err;
 575        data = (val >> 8) & 0xff;
 576        err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
 577        if (err < 0)
 578                return err;
 579        data = val & 0xff;
 580        err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
 581
 582        return err;
 583}
 584
 585static int s5k4aa_set_hvflip(struct gspca_dev *gspca_dev)
 586{
 587        struct sd *sd = (struct sd *) gspca_dev;
 588        u8 data = S5K4AA_PAGE_MAP_2;
 589        int err;
 590        int hflip = sd->hflip->val;
 591        int vflip = sd->vflip->val;
 592
 593        gspca_dbg(gspca_dev, D_CONF, "Set hvflip %d %d\n", hflip, vflip);
 594        err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 595        if (err < 0)
 596                return err;
 597
 598        err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
 599        if (err < 0)
 600                return err;
 601
 602        if (dmi_check_system(s5k4aa_vflip_dmi_table)) {
 603                hflip = !hflip;
 604                vflip = !vflip;
 605        }
 606
 607        data = (data & 0x7f) | (vflip << 7) | (hflip << 6);
 608        err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
 609        if (err < 0)
 610                return err;
 611
 612        err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
 613        if (err < 0)
 614                return err;
 615        if (hflip)
 616                data &= 0xfe;
 617        else
 618                data |= 0x01;
 619        err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
 620        if (err < 0)
 621                return err;
 622
 623        err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
 624        if (err < 0)
 625                return err;
 626        if (vflip)
 627                data &= 0xfe;
 628        else
 629                data |= 0x01;
 630        err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
 631        if (err < 0)
 632                return err;
 633
 634        return 0;
 635}
 636
 637static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val)
 638{
 639        struct sd *sd = (struct sd *) gspca_dev;
 640        u8 data = S5K4AA_PAGE_MAP_2;
 641        int err;
 642
 643        gspca_dbg(gspca_dev, D_CONF, "Set gain to %d\n", val);
 644        err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 645        if (err < 0)
 646                return err;
 647
 648        data = val & 0xff;
 649        err = m5602_write_sensor(sd, S5K4AA_GAIN, &data, 1);
 650
 651        return err;
 652}
 653
 654static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
 655{
 656        struct sd *sd = (struct sd *) gspca_dev;
 657        u8 data = S5K4AA_PAGE_MAP_2;
 658        int err;
 659
 660        gspca_dbg(gspca_dev, D_CONF, "Set brightness to %d\n", val);
 661        err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 662        if (err < 0)
 663                return err;
 664
 665        data = val & 0xff;
 666        return m5602_write_sensor(sd, S5K4AA_BRIGHTNESS, &data, 1);
 667}
 668
 669static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val)
 670{
 671        struct sd *sd = (struct sd *) gspca_dev;
 672        u8 data = S5K4AA_PAGE_MAP_2;
 673        int err;
 674
 675        gspca_dbg(gspca_dev, D_CONF, "Set noise to %d\n", val);
 676        err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 677        if (err < 0)
 678                return err;
 679
 680        data = val & 0x01;
 681        return m5602_write_sensor(sd, S5K4AA_NOISE_SUPP, &data, 1);
 682}
 683
 684static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl)
 685{
 686        struct gspca_dev *gspca_dev =
 687                container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
 688        int err;
 689
 690        if (!gspca_dev->streaming)
 691                return 0;
 692
 693        switch (ctrl->id) {
 694        case V4L2_CID_BRIGHTNESS:
 695                err = s5k4aa_set_brightness(gspca_dev, ctrl->val);
 696                break;
 697        case V4L2_CID_EXPOSURE:
 698                err = s5k4aa_set_exposure(gspca_dev, ctrl->val);
 699                break;
 700        case V4L2_CID_GAIN:
 701                err = s5k4aa_set_gain(gspca_dev, ctrl->val);
 702                break;
 703        case V4L2_CID_SHARPNESS:
 704                err = s5k4aa_set_noise(gspca_dev, ctrl->val);
 705                break;
 706        case V4L2_CID_HFLIP:
 707                err = s5k4aa_set_hvflip(gspca_dev);
 708                break;
 709        default:
 710                return -EINVAL;
 711        }
 712
 713        return err;
 714}
 715
 716void s5k4aa_disconnect(struct sd *sd)
 717{
 718        sd->sensor = NULL;
 719}
 720
 721static void s5k4aa_dump_registers(struct sd *sd)
 722{
 723        int address;
 724        u8 page, old_page;
 725        m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
 726        for (page = 0; page < 16; page++) {
 727                m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
 728                pr_info("Dumping the s5k4aa register state for page 0x%x\n",
 729                        page);
 730                for (address = 0; address <= 0xff; address++) {
 731                        u8 value = 0;
 732                        m5602_read_sensor(sd, address, &value, 1);
 733                        pr_info("register 0x%x contains 0x%x\n",
 734                                address, value);
 735                }
 736        }
 737        pr_info("s5k4aa register state dump complete\n");
 738
 739        for (page = 0; page < 16; page++) {
 740                m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
 741                pr_info("Probing for which registers that are read/write for page 0x%x\n",
 742                        page);
 743                for (address = 0; address <= 0xff; address++) {
 744                        u8 old_value, ctrl_value, test_value = 0xff;
 745
 746                        m5602_read_sensor(sd, address, &old_value, 1);
 747                        m5602_write_sensor(sd, address, &test_value, 1);
 748                        m5602_read_sensor(sd, address, &ctrl_value, 1);
 749
 750                        if (ctrl_value == test_value)
 751                                pr_info("register 0x%x is writeable\n",
 752                                        address);
 753                        else
 754                                pr_info("register 0x%x is read only\n",
 755                                        address);
 756
 757                        /* Restore original value */
 758                        m5602_write_sensor(sd, address, &old_value, 1);
 759                }
 760        }
 761        pr_info("Read/write register probing complete\n");
 762        m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
 763}
 764