drivers/media/usb/gspca/m5602/m5602_s5k4aa.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Driver for the s5k4aa sensor
   4  *
   5  * Copyright (C) 2008 Erik Andrén
   6  * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
   7  * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
   8  *
   9  * Portions of code to USB interface and ALi driver software,
  10  * Copyright (c) 2006 Willem Duinker
  11  * v4l2 interface modeled after the V4L2 driver
  12  * for SN9C10x PC Camera Controllers
  13  */
  14
  15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  16
  17 #include "m5602_s5k4aa.h"
  18
  19 static const unsigned char preinit_s5k4aa[][4] = {
  20         {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
  21         {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
  22         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  23         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
  24         {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
  25         {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00},
  26         {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00},
  27
  28         {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  29         {BRIDGE, M5602_XB_GPIO_DAT, 0x08, 0x00},
  30         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0xb0, 0x00},
  31         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0x80, 0x00},
  32         {BRIDGE, M5602_XB_GPIO_EN_H, 0x3f, 0x00},
  33         {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3f, 0x00},
  34         {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
  35         {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  36         {BRIDGE, M5602_XB_GPIO_DAT, 0x00, 0x00},
  37         {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00},
  38         {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
  39         {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
  40         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  41         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
  42         {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
  43         {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00},
  44
  45         {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
  46         {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
  47         {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  48         {BRIDGE, M5602_XB_GPIO_DAT, 0x14, 0x00},
  49         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  50         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xf0, 0x00},
  51         {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  52         {BRIDGE, M5602_XB_GPIO_DAT, 0x1c, 0x00},
  53         {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
  54         {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06, 0x00},
  55         {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
  56         {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
  57         {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x20, 0x00},
  58
  59         {SENSOR, S5K4AA_PAGE_MAP, 0x00, 0x00}
  60 };
  61
  62 static const unsigned char init_s5k4aa[][4] = {
  63         {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
  64         {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
  65         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  66         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
  67         {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
  68         {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00},
  69         {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00},
  70
  71         {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  72         {BRIDGE, M5602_XB_GPIO_DAT, 0x08, 0x00},
  73         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0xb0, 0x00},
  74         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0x80, 0x00},
  75         {BRIDGE, M5602_XB_GPIO_EN_H, 0x3f, 0x00},
  76         {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3f, 0x00},
  77         {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
  78         {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  79         {BRIDGE, M5602_XB_GPIO_DAT, 0x00, 0x00},
  80         {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00},
  81         {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
  82         {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
  83         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  84         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
  85         {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
  86         {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00},
  87
  88         {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
  89         {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
  90         {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  91         {BRIDGE, M5602_XB_GPIO_DAT, 0x14, 0x00},
  92         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
  93         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xf0, 0x00},
  94         {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
  95         {BRIDGE, M5602_XB_GPIO_DAT, 0x1c, 0x00},
  96         {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
  97         {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06, 0x00},
  98         {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
  99         {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
 100         {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x20, 0x00},
 101
 102         {SENSOR, S5K4AA_PAGE_MAP, 0x07, 0x00},
 103         {SENSOR, 0x36, 0x01, 0x00},
 104         {SENSOR, S5K4AA_PAGE_MAP, 0x00, 0x00},
 105         {SENSOR, 0x7b, 0xff, 0x00},
 106         {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 107         {SENSOR, 0x0c, 0x05, 0x00},
 108         {SENSOR, 0x02, 0x0e, 0x00},
 109         {SENSOR, S5K4AA_READ_MODE, 0xa0, 0x00},
 110         {SENSOR, 0x37, 0x00, 0x00},
 111 };
 112
 113 static const unsigned char VGA_s5k4aa[][4] = {
 114         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00},
 115         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
 116         {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
 117         {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00},
 118         {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00},
 119         {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00},
 120         {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00},
 121         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 122         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 123         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 124         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 125         /* VSYNC_PARA, VSYNC_PARA : img height 480 = 0x01e0 */
 126         {BRIDGE, M5602_XB_VSYNC_PARA, 0x01, 0x00},
 127         {BRIDGE, M5602_XB_VSYNC_PARA, 0xe0, 0x00},
 128         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 129         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 130         {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00},
 131         {BRIDGE, M5602_XB_SIG_INI, 0x02, 0x00},
 132         {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 133         {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 134         /* HSYNC_PARA, HSYNC_PARA : img width 640 = 0x0280 */
 135         {BRIDGE, M5602_XB_HSYNC_PARA, 0x02, 0x00},
 136         {BRIDGE, M5602_XB_HSYNC_PARA, 0x80, 0x00},
 137         {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00},
 138         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
 139         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xa0, 0x00}, /* 48 MHz */
 140
 141         {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 142         {SENSOR, S5K4AA_READ_MODE, S5K4AA_RM_H_FLIP | S5K4AA_RM_ROW_SKIP_2X
 143                 | S5K4AA_RM_COL_SKIP_2X, 0x00},
 144         /* 0x37 : Fix image stability when light is too bright and improves
 145          * image quality in 640x480, but worsens it in 1280x1024 */
 146         {SENSOR, 0x37, 0x01, 0x00},
 147         /* ROWSTART_HI, ROWSTART_LO : 10 + (1024-960)/2 = 42 = 0x002a */
 148         {SENSOR, S5K4AA_ROWSTART_HI, 0x00, 0x00},
 149         {SENSOR, S5K4AA_ROWSTART_LO, 0x29, 0x00},
 150         {SENSOR, S5K4AA_COLSTART_HI, 0x00, 0x00},
 151         {SENSOR, S5K4AA_COLSTART_LO, 0x0c, 0x00},
 152         /* window_height_hi, window_height_lo : 960 = 0x03c0 */
 153         {SENSOR, S5K4AA_WINDOW_HEIGHT_HI, 0x03, 0x00},
 154         {SENSOR, S5K4AA_WINDOW_HEIGHT_LO, 0xc0, 0x00},
 155         /* window_width_hi, window_width_lo : 1280 = 0x0500 */
 156         {SENSOR, S5K4AA_WINDOW_WIDTH_HI, 0x05, 0x00},
 157         {SENSOR, S5K4AA_WINDOW_WIDTH_LO, 0x00, 0x00},
 158         {SENSOR, S5K4AA_H_BLANK_HI__, 0x00, 0x00},
 159         {SENSOR, S5K4AA_H_BLANK_LO__, 0xa8, 0x00}, /* helps to sync... */
 160         {SENSOR, S5K4AA_EXPOSURE_HI, 0x01, 0x00},
 161         {SENSOR, S5K4AA_EXPOSURE_LO, 0x00, 0x00},
 162         {SENSOR, 0x11, 0x04, 0x00},
 163         {SENSOR, 0x12, 0xc3, 0x00},
 164         {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 165         {SENSOR, 0x02, 0x0e, 0x00},
 166 };
 167
 168 static const unsigned char SXGA_s5k4aa[][4] = {
 169         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00},
 170         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
 171         {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
 172         {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00},
 173         {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00},
 174         {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00},
 175         {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00},
 176         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 177         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 178         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 179         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 180         /* VSYNC_PARA, VSYNC_PARA : img height 1024 = 0x0400 */
 181         {BRIDGE, M5602_XB_VSYNC_PARA, 0x04, 0x00},
 182         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 183         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 184         {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
 185         {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00},
 186         {BRIDGE, M5602_XB_SIG_INI, 0x02, 0x00},
 187         {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 188         {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 189         /* HSYNC_PARA, HSYNC_PARA : img width 1280 = 0x0500 */
 190         {BRIDGE, M5602_XB_HSYNC_PARA, 0x05, 0x00},
 191         {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00},
 192         {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00},
 193         {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
 194         {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xa0, 0x00}, /* 48 MHz */
 195
 196         {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 197         {SENSOR, S5K4AA_READ_MODE, S5K4AA_RM_H_FLIP, 0x00},
 198         {SENSOR, 0x37, 0x01, 0x00},
 199         {SENSOR, S5K4AA_ROWSTART_HI, 0x00, 0x00},
 200         {SENSOR, S5K4AA_ROWSTART_LO, 0x09, 0x00},
 201         {SENSOR, S5K4AA_COLSTART_HI, 0x00, 0x00},
 202         {SENSOR, S5K4AA_COLSTART_LO, 0x0a, 0x00},
 203         {SENSOR, S5K4AA_WINDOW_HEIGHT_HI, 0x04, 0x00},
 204         {SENSOR, S5K4AA_WINDOW_HEIGHT_LO, 0x00, 0x00},
 205         {SENSOR, S5K4AA_WINDOW_WIDTH_HI, 0x05, 0x00},
 206         {SENSOR, S5K4AA_WINDOW_WIDTH_LO, 0x00, 0x00},
 207         {SENSOR, S5K4AA_H_BLANK_HI__, 0x01, 0x00},
 208         {SENSOR, S5K4AA_H_BLANK_LO__, 0xa8, 0x00},
 209         {SENSOR, S5K4AA_EXPOSURE_HI, 0x01, 0x00},
 210         {SENSOR, S5K4AA_EXPOSURE_LO, 0x00, 0x00},
 211         {SENSOR, 0x11, 0x04, 0x00},
 212         {SENSOR, 0x12, 0xc3, 0x00},
 213         {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00},
 214         {SENSOR, 0x02, 0x0e, 0x00},
 215 };
 216
 217
 218 static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl);
 219 static void s5k4aa_dump_registers(struct sd *sd);
 220
 221 static const struct v4l2_ctrl_ops s5k4aa_ctrl_ops = {
 222         .s_ctrl = s5k4aa_s_ctrl,
 223 };
 224
 225 static
 226     const
 227         struct dmi_system_id s5k4aa_vflip_dmi_table[] = {
 228         {
 229                 .ident = "BRUNEINIT",
 230                 .matches = {
 231                         DMI_MATCH(DMI_SYS_VENDOR, "BRUNENIT"),
 232                         DMI_MATCH(DMI_PRODUCT_NAME, "BRUNENIT"),
 233                         DMI_MATCH(DMI_BOARD_VERSION, "00030D0000000001")
 234                 }
 235         }, {
 236                 .ident = "Fujitsu-Siemens Amilo Xa 2528",
 237                 .matches = {
 238                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 239                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
 240                 }
 241         }, {
 242                 .ident = "Fujitsu-Siemens Amilo Xi 2428",
 243                 .matches = {
 244                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 245                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2428")
 246                 }
 247         }, {
 248                 .ident = "Fujitsu-Siemens Amilo Xi 2528",
 249                 .matches = {
 250                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 251                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2528")
 252                 }
 253         }, {
 254                 .ident = "Fujitsu-Siemens Amilo Xi 2550",
 255                 .matches = {
 256                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 257                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550")
 258                 }
 259         }, {
 260                 .ident = "Fujitsu-Siemens Amilo Pa 2548",
 261                 .matches = {
 262                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 263                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2548")
 264                 }
 265         }, {
 266                 .ident = "Fujitsu-Siemens Amilo Pi 2530",
 267                 .matches = {
 268                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 269                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 2530")
 270                 }
 271         }, {
 272                 .ident = "MSI GX700",
 273                 .matches = {
 274                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 275                         DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
 276                         DMI_MATCH(DMI_BIOS_DATE, "12/02/2008")
 277                 }
 278         }, {
 279                 .ident = "MSI GX700",
 280                 .matches = {
 281                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 282                         DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
 283                         DMI_MATCH(DMI_BIOS_DATE, "07/26/2007")
 284                 }
 285         }, {
 286                 .ident = "MSI GX700",
 287                 .matches = {
 288                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 289                         DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
 290                         DMI_MATCH(DMI_BIOS_DATE, "07/19/2007")
 291                 }
 292         }, {
 293                 .ident = "MSI GX700/GX705/EX700",
 294                 .matches = {
 295                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 296                         DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700")
 297                 }
 298         }, {
 299                 .ident = "MSI L735",
 300                 .matches = {
 301                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 302                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1717X")
 303                 }
 304         }, {
 305                 .ident = "Lenovo Y300",
 306                 .matches = {
 307                         DMI_MATCH(DMI_SYS_VENDOR, "L3000 Y300"),
 308                         DMI_MATCH(DMI_PRODUCT_NAME, "Y300")
 309                 }
 310         },
 311         { }
 312 };
 313
 314 static struct v4l2_pix_format s5k4aa_modes[] = {
 315         {
 316                 640,
 317                 480,
 318                 V4L2_PIX_FMT_SBGGR8,
 319                 V4L2_FIELD_NONE,
 320                 .sizeimage =
 321                         640 * 480,
 322                 .bytesperline = 640,
 323                 .colorspace = V4L2_COLORSPACE_SRGB,
 324                 .priv = 0
 325         },
 326         {
 327                 1280,
 328                 1024,
 329                 V4L2_PIX_FMT_SBGGR8,
 330                 V4L2_FIELD_NONE,
 331                 .sizeimage =
 332                         1280 * 1024,
 333                 .bytesperline = 1280,
 334                 .colorspace = V4L2_COLORSPACE_SRGB,
 335                 .priv = 0
 336         }
 337 };
 338
 339 int s5k4aa_probe(struct sd *sd)
 340 {
 341         u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 342         const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75};
 343         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 344         int i, err = 0;
 345
 346         if (force_sensor) {
 347                 if (force_sensor == S5K4AA_SENSOR) {
 348                         pr_info("Forcing a %s sensor\n", s5k4aa.name);
 349                         goto sensor_found;
 350                 }
 351                 /* If we want to force another sensor, don't try to probe this
 352                  * one */
 353                 return -ENODEV;
 354         }
 355
 356         gspca_dbg(gspca_dev, D_PROBE, "Probing for a s5k4aa sensor\n");
 357
 358         /* Preinit the sensor */
 359         for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
 360                 u8 data[2] = {0x00, 0x00};
 361
 362                 switch (preinit_s5k4aa[i][0]) {
 363                 case BRIDGE:
 364                         err = m5602_write_bridge(sd,
 365                                                  preinit_s5k4aa[i][1],
 366                                                  preinit_s5k4aa[i][2]);
 367                         break;
 368
 369                 case SENSOR:
 370                         data[0] = preinit_s5k4aa[i][2];
 371                         err = m5602_write_sensor(sd,
 372                                                   preinit_s5k4aa[i][1],
 373                                                   data, 1);
 374                         break;
 375
 376                 case SENSOR_LONG:
 377                         data[0] = preinit_s5k4aa[i][2];
 378                         data[1] = preinit_s5k4aa[i][3];
 379                         err = m5602_write_sensor(sd,
 380                                                   preinit_s5k4aa[i][1],
 381                                                   data, 2);
 382                         break;
 383                 default:
 384                         pr_info("Invalid stream command, exiting init\n");
 385                         return -EINVAL;
 386                 }
 387         }
 388
 389         /* Test some registers, but we don't know their exact meaning yet */
 390         if (m5602_read_sensor(sd, 0x00, prod_id, 2))
 391                 return -ENODEV;
 392         if (m5602_read_sensor(sd, 0x02, prod_id+2, 2))
 393                 return -ENODEV;
 394         if (m5602_read_sensor(sd, 0x04, prod_id+4, 2))
 395                 return -ENODEV;
 396
 397         if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
 398                 return -ENODEV;
 399         else
 400                 pr_info("Detected a s5k4aa sensor\n");
 401
 402 sensor_found:
 403         sd->gspca_dev.cam.cam_mode = s5k4aa_modes;
 404         sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes);
 405
 406         return 0;
 407 }
 408
 409 int s5k4aa_start(struct sd *sd)
 410 {
 411         int i, err = 0;
 412         u8 data[2];
 413         struct cam *cam = &sd->gspca_dev.cam;
 414         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 415
 416         switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) {
 417         case 1280:
 418                 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for SXGA mode\n");
 419
 420                 for (i = 0; i < ARRAY_SIZE(SXGA_s5k4aa); i++) {
 421                         switch (SXGA_s5k4aa[i][0]) {
 422                         case BRIDGE:
 423                                 err = m5602_write_bridge(sd,
 424                                                  SXGA_s5k4aa[i][1],
 425                                                  SXGA_s5k4aa[i][2]);
 426                         break;
 427
 428                         case SENSOR:
 429                                 data[0] = SXGA_s5k4aa[i][2];
 430                                 err = m5602_write_sensor(sd,
 431                                                  SXGA_s5k4aa[i][1],
 432                                                  data, 1);
 433                         break;
 434
 435                         case SENSOR_LONG:
 436                                 data[0] = SXGA_s5k4aa[i][2];
 437                                 data[1] = SXGA_s5k4aa[i][3];
 438                                 err = m5602_write_sensor(sd,
 439                                                   SXGA_s5k4aa[i][1],
 440                                                   data, 2);
 441                         break;
 442
 443                         default:
 444                                 pr_err("Invalid stream command, exiting init\n");
 445                                 return -EINVAL;
 446                         }
 447                 }
 448                 break;
 449
 450         case 640:
 451                 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for VGA mode\n");
 452
 453                 for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) {
 454                         switch (VGA_s5k4aa[i][0]) {
 455                         case BRIDGE:
 456                                 err = m5602_write_bridge(sd,
 457                                                  VGA_s5k4aa[i][1],
 458                                                  VGA_s5k4aa[i][2]);
 459                         break;
 460
 461                         case SENSOR:
 462                                 data[0] = VGA_s5k4aa[i][2];
 463                                 err = m5602_write_sensor(sd,
 464                                                  VGA_s5k4aa[i][1],
 465                                                  data, 1);
 466                         break;
 467
 468                         case SENSOR_LONG:
 469                                 data[0] = VGA_s5k4aa[i][2];
 470                                 data[1] = VGA_s5k4aa[i][3];
 471                                 err = m5602_write_sensor(sd,
 472                                                   VGA_s5k4aa[i][1],
 473                                                   data, 2);
 474                         break;
 475
 476                         default:
 477                                 pr_err("Invalid stream command, exiting init\n");
 478                                 return -EINVAL;
 479                         }
 480                 }
 481                 break;
 482         }
 483         if (err < 0)
 484                 return err;
 485
 486         return 0;
 487 }
 488
 489 int s5k4aa_init(struct sd *sd)
 490 {
 491         int i, err = 0;
 492
 493         for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
 494                 u8 data[2] = {0x00, 0x00};
 495
 496                 switch (init_s5k4aa[i][0]) {
 497                 case BRIDGE:
 498                         err = m5602_write_bridge(sd,
 499                                 init_s5k4aa[i][1],
 500                                 init_s5k4aa[i][2]);
 501                         break;
 502
 503                 case SENSOR:
 504                         data[0] = init_s5k4aa[i][2];
 505                         err = m5602_write_sensor(sd,
 506                                 init_s5k4aa[i][1], data, 1);
 507                         break;
 508
 509                 case SENSOR_LONG:
 510                         data[0] = init_s5k4aa[i][2];
 511                         data[1] = init_s5k4aa[i][3];
 512                         err = m5602_write_sensor(sd,
 513                                 init_s5k4aa[i][1], data, 2);
 514                         break;
 515                 default:
 516                         pr_info("Invalid stream command, exiting init\n");
 517                         return -EINVAL;
 518                 }
 519         }
 520
 521         if (dump_sensor)
 522                 s5k4aa_dump_registers(sd);
 523
 524         return err;
 525 }
 526
 527 int s5k4aa_init_controls(struct sd *sd)
 528 {
 529         struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
 530
 531         sd->gspca_dev.vdev.ctrl_handler = hdl;
 532         v4l2_ctrl_handler_init(hdl, 6);
 533
 534         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_BRIGHTNESS,
 535                           0, 0x1f, 1, S5K4AA_DEFAULT_BRIGHTNESS);
 536
 537         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_EXPOSURE,
 538                           13, 0xfff, 1, 0x100);
 539
 540         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_GAIN,
 541                           0, 127, 1, S5K4AA_DEFAULT_GAIN);
 542
 543         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_SHARPNESS,
 544                           0, 1, 1, 1);
 545
 546         sd->hflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_HFLIP,
 547                                       0, 1, 1, 0);
 548         sd->vflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_VFLIP,
 549                                       0, 1, 1, 0);
 550
 551         if (hdl->error) {
 552                 pr_err("Could not initialize controls\n");
 553                 return hdl->error;
 554         }
 555
 556         v4l2_ctrl_cluster(2, &sd->hflip);
 557
 558         return 0;
 559 }
 560
 561 static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
 562 {
 563         struct sd *sd = (struct sd *) gspca_dev;
 564         u8 data = S5K4AA_PAGE_MAP_2;
 565         int err;
 566
 567         gspca_dbg(gspca_dev, D_CONF, "Set exposure to %d\n", val);
 568         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 569         if (err < 0)
 570                 return err;
 571         data = (val >> 8) & 0xff;
 572         err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
 573         if (err < 0)
 574                 return err;
 575         data = val & 0xff;
 576         err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
 577
 578         return err;
 579 }
 580
 581 static int s5k4aa_set_hvflip(struct gspca_dev *gspca_dev)
 582 {
 583         struct sd *sd = (struct sd *) gspca_dev;
 584         u8 data = S5K4AA_PAGE_MAP_2;
 585         int err;
 586         int hflip = sd->hflip->val;
 587         int vflip = sd->vflip->val;
 588
 589         gspca_dbg(gspca_dev, D_CONF, "Set hvflip %d %d\n", hflip, vflip);
 590         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 591         if (err < 0)
 592                 return err;
 593
 594         err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
 595         if (err < 0)
 596                 return err;
 597
 598         if (dmi_check_system(s5k4aa_vflip_dmi_table)) {
 599                 hflip = !hflip;
 600                 vflip = !vflip;
 601         }
 602
 603         data = (data & 0x7f) | (vflip << 7) | (hflip << 6);
 604         err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
 605         if (err < 0)
 606                 return err;
 607
 608         err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
 609         if (err < 0)
 610                 return err;
 611         if (hflip)
 612                 data &= 0xfe;
 613         else
 614                 data |= 0x01;
 615         err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
 616         if (err < 0)
 617                 return err;
 618
 619         err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
 620         if (err < 0)
 621                 return err;
 622         if (vflip)
 623                 data &= 0xfe;
 624         else
 625                 data |= 0x01;
 626         err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
 627         if (err < 0)
 628                 return err;
 629
 630         return 0;
 631 }
 632
 633 static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val)
 634 {
 635         struct sd *sd = (struct sd *) gspca_dev;
 636         u8 data = S5K4AA_PAGE_MAP_2;
 637         int err;
 638
 639         gspca_dbg(gspca_dev, D_CONF, "Set gain to %d\n", val);
 640         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 641         if (err < 0)
 642                 return err;
 643
 644         data = val & 0xff;
 645         err = m5602_write_sensor(sd, S5K4AA_GAIN, &data, 1);
 646
 647         return err;
 648 }
 649
 650 static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
 651 {
 652         struct sd *sd = (struct sd *) gspca_dev;
 653         u8 data = S5K4AA_PAGE_MAP_2;
 654         int err;
 655
 656         gspca_dbg(gspca_dev, D_CONF, "Set brightness to %d\n", val);
 657         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 658         if (err < 0)
 659                 return err;
 660
 661         data = val & 0xff;
 662         return m5602_write_sensor(sd, S5K4AA_BRIGHTNESS, &data, 1);
 663 }
 664
 665 static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val)
 666 {
 667         struct sd *sd = (struct sd *) gspca_dev;
 668         u8 data = S5K4AA_PAGE_MAP_2;
 669         int err;
 670
 671         gspca_dbg(gspca_dev, D_CONF, "Set noise to %d\n", val);
 672         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 673         if (err < 0)
 674                 return err;
 675
 676         data = val & 0x01;
 677         return m5602_write_sensor(sd, S5K4AA_NOISE_SUPP, &data, 1);
 678 }
 679
 680 static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl)
 681 {
 682         struct gspca_dev *gspca_dev =
 683                 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
 684         int err;
 685
 686         if (!gspca_dev->streaming)
 687                 return 0;
 688
 689         switch (ctrl->id) {
 690         case V4L2_CID_BRIGHTNESS:
 691                 err = s5k4aa_set_brightness(gspca_dev, ctrl->val);
 692                 break;
 693         case V4L2_CID_EXPOSURE:
 694                 err = s5k4aa_set_exposure(gspca_dev, ctrl->val);
 695                 break;
 696         case V4L2_CID_GAIN:
 697                 err = s5k4aa_set_gain(gspca_dev, ctrl->val);
 698                 break;
 699         case V4L2_CID_SHARPNESS:
 700                 err = s5k4aa_set_noise(gspca_dev, ctrl->val);
 701                 break;
 702         case V4L2_CID_HFLIP:
 703                 err = s5k4aa_set_hvflip(gspca_dev);
 704                 break;
 705         default:
 706                 return -EINVAL;
 707         }
 708
 709         return err;
 710 }
 711
 712 void s5k4aa_disconnect(struct sd *sd)
 713 {
 714         sd->sensor = NULL;
 715 }
 716
 717 static void s5k4aa_dump_registers(struct sd *sd)
 718 {
 719         int address;
 720         u8 page, old_page;
 721         m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
 722         for (page = 0; page < 16; page++) {
 723                 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
 724                 pr_info("Dumping the s5k4aa register state for page 0x%x\n",
 725                         page);
 726                 for (address = 0; address <= 0xff; address++) {
 727                         u8 value = 0;
 728                         m5602_read_sensor(sd, address, &value, 1);
 729                         pr_info("register 0x%x contains 0x%x\n",
 730                                 address, value);
 731                 }
 732         }
 733         pr_info("s5k4aa register state dump complete\n");
 734
 735         for (page = 0; page < 16; page++) {
 736                 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
 737                 pr_info("Probing for which registers that are read/write for page 0x%x\n",
 738                         page);
 739                 for (address = 0; address <= 0xff; address++) {
 740                         u8 old_value, ctrl_value, test_value = 0xff;
 741
 742                         m5602_read_sensor(sd, address, &old_value, 1);
 743                         m5602_write_sensor(sd, address, &test_value, 1);
 744                         m5602_read_sensor(sd, address, &ctrl_value, 1);
 745
 746                         if (ctrl_value == test_value)
 747                                 pr_info("register 0x%x is writeable\n",
 748                                         address);
 749                         else
 750                                 pr_info("register 0x%x is read only\n",
 751                                         address);
 752
 753                         /* Restore original value */
 754                         m5602_write_sensor(sd, address, &old_value, 1);
 755                 }
 756         }
 757         pr_info("Read/write register probing complete\n");
 758         m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
 759 }