diff options
Diffstat (limited to 'drivers/media/usb/sn9c102/sn9c102_ov7660.c')
| -rw-r--r-- | drivers/media/usb/sn9c102/sn9c102_ov7660.c | 538 |
1 files changed, 538 insertions, 0 deletions
diff --git a/drivers/media/usb/sn9c102/sn9c102_ov7660.c b/drivers/media/usb/sn9c102/sn9c102_ov7660.c new file mode 100644 index 00000000000..7977795d342 --- /dev/null +++ b/drivers/media/usb/sn9c102/sn9c102_ov7660.c @@ -0,0 +1,538 @@ +/*************************************************************************** + * Plug-in for OV7660 image sensor connected to the SN9C1xx PC Camera * + * Controllers * + * * + * Copyright (C) 2007 by Luca Risolia <luca.risolia@studio.unibo.it> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the Free Software * + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * + ***************************************************************************/ + +#include "sn9c102_sensor.h" +#include "sn9c102_devtable.h" + + +static int ov7660_init(struct sn9c102_device* cam) +{ + int err = 0; + + err = sn9c102_write_const_regs(cam, {0x40, 0x02}, {0x00, 0x03}, + {0x1a, 0x04}, {0x03, 0x10}, + {0x08, 0x14}, {0x20, 0x17}, + {0x8b, 0x18}, {0x00, 0x19}, + {0x1d, 0x1a}, {0x10, 0x1b}, + {0x02, 0x1c}, {0x03, 0x1d}, + {0x0f, 0x1e}, {0x0c, 0x1f}, + {0x00, 0x20}, {0x29, 0x21}, + {0x40, 0x22}, {0x54, 0x23}, + {0x66, 0x24}, {0x76, 0x25}, + {0x85, 0x26}, {0x94, 0x27}, + {0xa1, 0x28}, {0xae, 0x29}, + {0xbb, 0x2a}, {0xc7, 0x2b}, + {0xd3, 0x2c}, {0xde, 0x2d}, + {0xea, 0x2e}, {0xf4, 0x2f}, + {0xff, 0x30}, {0x00, 0x3f}, + {0xc7, 0x40}, {0x01, 0x41}, + {0x44, 0x42}, {0x00, 0x43}, + {0x44, 0x44}, {0x00, 0x45}, + {0x44, 0x46}, {0x00, 0x47}, + {0xc7, 0x48}, {0x01, 0x49}, + {0xc7, 0x4a}, {0x01, 0x4b}, + {0xc7, 0x4c}, {0x01, 0x4d}, + {0x44, 0x4e}, {0x00, 0x4f}, + {0x44, 0x50}, {0x00, 0x51}, + {0x44, 0x52}, {0x00, 0x53}, + {0xc7, 0x54}, {0x01, 0x55}, + {0xc7, 0x56}, {0x01, 0x57}, + {0xc7, 0x58}, {0x01, 0x59}, + {0x44, 0x5a}, {0x00, 0x5b}, + {0x44, 0x5c}, {0x00, 0x5d}, + {0x44, 0x5e}, {0x00, 0x5f}, + {0xc7, 0x60}, {0x01, 0x61}, + {0xc7, 0x62}, {0x01, 0x63}, + {0xc7, 0x64}, {0x01, 0x65}, + {0x44, 0x66}, {0x00, 0x67}, + {0x44, 0x68}, {0x00, 0x69}, + {0x44, 0x6a}, {0x00, 0x6b}, + {0xc7, 0x6c}, {0x01, 0x6d}, + {0xc7, 0x6e}, {0x01, 0x6f}, + {0xc7, 0x70}, {0x01, 0x71}, + {0x44, 0x72}, {0x00, 0x73}, + {0x44, 0x74}, {0x00, 0x75}, + {0x44, 0x76}, {0x00, 0x77}, + {0xc7, 0x78}, {0x01, 0x79}, + {0xc7, 0x7a}, {0x01, 0x7b}, + {0xc7, 0x7c}, {0x01, 0x7d}, + {0x44, 0x7e}, {0x00, 0x7f}, + {0x14, 0x84}, {0x00, 0x85}, + {0x27, 0x86}, {0x00, 0x87}, + {0x07, 0x88}, {0x00, 0x89}, + {0xec, 0x8a}, {0x0f, 0x8b}, + {0xd8, 0x8c}, {0x0f, 0x8d}, + {0x3d, 0x8e}, {0x00, 0x8f}, + {0x3d, 0x90}, {0x00, 0x91}, + {0xcd, 0x92}, {0x0f, 0x93}, + {0xf7, 0x94}, {0x0f, 0x95}, + {0x0c, 0x96}, {0x00, 0x97}, + {0x00, 0x98}, {0x66, 0x99}, + {0x05, 0x9a}, {0x00, 0x9b}, + {0x04, 0x9c}, {0x00, 0x9d}, + {0x08, 0x9e}, {0x00, 0x9f}, + {0x2d, 0xc0}, {0x2d, 0xc1}, + {0x3a, 0xc2}, {0x05, 0xc3}, + {0x04, 0xc4}, {0x3f, 0xc5}, + {0x00, 0xc6}, {0x00, 0xc7}, + {0x50, 0xc8}, {0x3C, 0xc9}, + {0x28, 0xca}, {0xd8, 0xcb}, + {0x14, 0xcc}, {0xec, 0xcd}, + {0x32, 0xce}, {0xdd, 0xcf}, + {0x32, 0xd0}, {0xdd, 0xd1}, + {0x6a, 0xd2}, {0x50, 0xd3}, + {0x00, 0xd4}, {0x00, 0xd5}, + {0x00, 0xd6}); + + err += sn9c102_i2c_write(cam, 0x12, 0x80); + err += sn9c102_i2c_write(cam, 0x11, 0x09); + err += sn9c102_i2c_write(cam, 0x00, 0x0A); + err += sn9c102_i2c_write(cam, 0x01, 0x80); + err += sn9c102_i2c_write(cam, 0x02, 0x80); + err += sn9c102_i2c_write(cam, 0x03, 0x00); + err += sn9c102_i2c_write(cam, 0x04, 0x00); + err += sn9c102_i2c_write(cam, 0x05, 0x08); + err += sn9c102_i2c_write(cam, 0x06, 0x0B); + err += sn9c102_i2c_write(cam, 0x07, 0x00); + err += sn9c102_i2c_write(cam, 0x08, 0x1C); + err += sn9c102_i2c_write(cam, 0x09, 0x01); + err += sn9c102_i2c_write(cam, 0x0A, 0x76); + err += sn9c102_i2c_write(cam, 0x0B, 0x60); + err += sn9c102_i2c_write(cam, 0x0C, 0x00); + err += sn9c102_i2c_write(cam, 0x0D, 0x08); + err += sn9c102_i2c_write(cam, 0x0E, 0x04); + err += sn9c102_i2c_write(cam, 0x0F, 0x6F); + err += sn9c102_i2c_write(cam, 0x10, 0x20); + err += sn9c102_i2c_write(cam, 0x11, 0x03); + err += sn9c102_i2c_write(cam, 0x12, 0x05); + err += sn9c102_i2c_write(cam, 0x13, 0xC7); + err += sn9c102_i2c_write(cam, 0x14, 0x2C); + err += sn9c102_i2c_write(cam, 0x15, 0x00); + err += sn9c102_i2c_write(cam, 0x16, 0x02); + err += sn9c102_i2c_write(cam, 0x17, 0x10); + err += sn9c102_i2c_write(cam, 0x18, 0x60); + err += sn9c102_i2c_write(cam, 0x19, 0x02); + err += sn9c102_i2c_write(cam, 0x1A, 0x7B); + err += sn9c102_i2c_write(cam, 0x1B, 0x02); + err += sn9c102_i2c_write(cam, 0x1C, 0x7F); + err += sn9c102_i2c_write(cam, 0x1D, 0xA2); + err += sn9c102_i2c_write(cam, 0x1E, 0x01); + err += sn9c102_i2c_write(cam, 0x1F, 0x0E); + err += sn9c102_i2c_write(cam, 0x20, 0x05); + err += sn9c102_i2c_write(cam, 0x21, 0x05); + err += sn9c102_i2c_write(cam, 0x22, 0x05); + err += sn9c102_i2c_write(cam, 0x23, 0x05); + err += sn9c102_i2c_write(cam, 0x24, 0x68); + err += sn9c102_i2c_write(cam, 0x25, 0x58); + err += sn9c102_i2c_write(cam, 0x26, 0xD4); + err += sn9c102_i2c_write(cam, 0x27, 0x80); + err += sn9c102_i2c_write(cam, 0x28, 0x80); + err += sn9c102_i2c_write(cam, 0x29, 0x30); + err += sn9c102_i2c_write(cam, 0x2A, 0x00); + err += sn9c102_i2c_write(cam, 0x2B, 0x00); + err += sn9c102_i2c_write(cam, 0x2C, 0x80); + err += sn9c102_i2c_write(cam, 0x2D, 0x00); + err += sn9c102_i2c_write(cam, 0x2E, 0x00); + err += sn9c102_i2c_write(cam, 0x2F, 0x0E); + err += sn9c102_i2c_write(cam, 0x30, 0x08); + err += sn9c102_i2c_write(cam, 0x31, 0x30); + err += sn9c102_i2c_write(cam, 0x32, 0xB4); + err += sn9c102_i2c_write(cam, 0x33, 0x00); + err += sn9c102_i2c_write(cam, 0x34, 0x07); + err += sn9c102_i2c_write(cam, 0x35, 0x84); + err += sn9c102_i2c_write(cam, 0x36, 0x00); + err += sn9c102_i2c_write(cam, 0x37, 0x0C); + err += sn9c102_i2c_write(cam, 0x38, 0x02); + err += sn9c102_i2c_write(cam, 0x39, 0x43); + err += sn9c102_i2c_write(cam, 0x3A, 0x00); + err += sn9c102_i2c_write(cam, 0x3B, 0x0A); + err += sn9c102_i2c_write(cam, 0x3C, 0x6C); + err += sn9c102_i2c_write(cam, 0x3D, 0x99); + err += sn9c102_i2c_write(cam, 0x3E, 0x0E); + err += sn9c102_i2c_write(cam, 0x3F, 0x41); + err += sn9c102_i2c_write(cam, 0x40, 0xC1); + err += sn9c102_i2c_write(cam, 0x41, 0x22); + err += sn9c102_i2c_write(cam, 0x42, 0x08); + err += sn9c102_i2c_write(cam, 0x43, 0xF0); + err += sn9c102_i2c_write(cam, 0x44, 0x10); + err += sn9c102_i2c_write(cam, 0x45, 0x78); + err += sn9c102_i2c_write(cam, 0x46, 0xA8); + err += sn9c102_i2c_write(cam, 0x47, 0x60); + err += sn9c102_i2c_write(cam, 0x48, 0x80); + err += sn9c102_i2c_write(cam, 0x49, 0x00); + err += sn9c102_i2c_write(cam, 0x4A, 0x00); + err += sn9c102_i2c_write(cam, 0x4B, 0x00); + err += sn9c102_i2c_write(cam, 0x4C, 0x00); + err += sn9c102_i2c_write(cam, 0x4D, 0x00); + err += sn9c102_i2c_write(cam, 0x4E, 0x00); + err += sn9c102_i2c_write(cam, 0x4F, 0x46); + err += sn9c102_i2c_write(cam, 0x50, 0x36); + err += sn9c102_i2c_write(cam, 0x51, 0x0F); + err += sn9c102_i2c_write(cam, 0x52, 0x17); + err += sn9c102_i2c_write(cam, 0x53, 0x7F); + err += sn9c102_i2c_write(cam, 0x54, 0x96); + err += sn9c102_i2c_write(cam, 0x55, 0x40); + err += sn9c102_i2c_write(cam, 0x56, 0x40); + err += sn9c102_i2c_write(cam, 0x57, 0x40); + err += sn9c102_i2c_write(cam, 0x58, 0x0F); + err += sn9c102_i2c_write(cam, 0x59, 0xBA); + err += sn9c102_i2c_write(cam, 0x5A, 0x9A); + err += sn9c102_i2c_write(cam, 0x5B, 0x22); + err += sn9c102_i2c_write(cam, 0x5C, 0xB9); + err += sn9c102_i2c_write(cam, 0x5D, 0x9B); + err += sn9c102_i2c_write(cam, 0x5E, 0x10); + err += sn9c102_i2c_write(cam, 0x5F, 0xF0); + err += sn9c102_i2c_write(cam, 0x60, 0x05); + err += sn9c102_i2c_write(cam, 0x61, 0x60); + err += sn9c102_i2c_write(cam, 0x62, 0x00); + err += sn9c102_i2c_write(cam, 0x63, 0x00); + err += sn9c102_i2c_write(cam, 0x64, 0x50); + err += sn9c102_i2c_write(cam, 0x65, 0x30); + err += sn9c102_i2c_write(cam, 0x66, 0x00); + err += sn9c102_i2c_write(cam, 0x67, 0x80); + err += sn9c102_i2c_write(cam, 0x68, 0x7A); + err += sn9c102_i2c_write(cam, 0x69, 0x90); + err += sn9c102_i2c_write(cam, 0x6A, 0x80); + err += sn9c102_i2c_write(cam, 0x6B, 0x0A); + err += sn9c102_i2c_write(cam, 0x6C, 0x30); + err += sn9c102_i2c_write(cam, 0x6D, 0x48); + err += sn9c102_i2c_write(cam, 0x6E, 0x80); + err += sn9c102_i2c_write(cam, 0x6F, 0x74); + err += sn9c102_i2c_write(cam, 0x70, 0x64); + err += sn9c102_i2c_write(cam, 0x71, 0x60); + err += sn9c102_i2c_write(cam, 0x72, 0x5C); + err += sn9c102_i2c_write(cam, 0x73, 0x58); + err += sn9c102_i2c_write(cam, 0x74, 0x54); + err += sn9c102_i2c_write(cam, 0x75, 0x4C); + err += sn9c102_i2c_write(cam, 0x76, 0x40); + err += sn9c102_i2c_write(cam, 0x77, 0x38); + err += sn9c102_i2c_write(cam, 0x78, 0x34); + err += sn9c102_i2c_write(cam, 0x79, 0x30); + err += sn9c102_i2c_write(cam, 0x7A, 0x2F); + err += sn9c102_i2c_write(cam, 0x7B, 0x2B); + err += sn9c102_i2c_write(cam, 0x7C, 0x03); + err += sn9c102_i2c_write(cam, 0x7D, 0x07); + err += sn9c102_i2c_write(cam, 0x7E, 0x17); + err += sn9c102_i2c_write(cam, 0x7F, 0x34); + err += sn9c102_i2c_write(cam, 0x80, 0x41); + err += sn9c102_i2c_write(cam, 0x81, 0x4D); + err += sn9c102_i2c_write(cam, 0x82, 0x58); + err += sn9c102_i2c_write(cam, 0x83, 0x63); + err += sn9c102_i2c_write(cam, 0x84, 0x6E); + err += sn9c102_i2c_write(cam, 0x85, 0x77); + err += sn9c102_i2c_write(cam, 0x86, 0x87); + err += sn9c102_i2c_write(cam, 0x87, 0x95); + err += sn9c102_i2c_write(cam, 0x88, 0xAF); + err += sn9c102_i2c_write(cam, 0x89, 0xC7); + err += sn9c102_i2c_write(cam, 0x8A, 0xDF); + err += sn9c102_i2c_write(cam, 0x8B, 0x99); + err += sn9c102_i2c_write(cam, 0x8C, 0x99); + err += sn9c102_i2c_write(cam, 0x8D, 0xCF); + err += sn9c102_i2c_write(cam, 0x8E, 0x20); + err += sn9c102_i2c_write(cam, 0x8F, 0x26); + err += sn9c102_i2c_write(cam, 0x90, 0x10); + err += sn9c102_i2c_write(cam, 0x91, 0x0C); + err += sn9c102_i2c_write(cam, 0x92, 0x25); + err += sn9c102_i2c_write(cam, 0x93, 0x00); + err += sn9c102_i2c_write(cam, 0x94, 0x50); + err += sn9c102_i2c_write(cam, 0x95, 0x50); + err += sn9c102_i2c_write(cam, 0x96, 0x00); + err += sn9c102_i2c_write(cam, 0x97, 0x01); + err += sn9c102_i2c_write(cam, 0x98, 0x10); + err += sn9c102_i2c_write(cam, 0x99, 0x40); + err += sn9c102_i2c_write(cam, 0x9A, 0x40); + err += sn9c102_i2c_write(cam, 0x9B, 0x20); + err += sn9c102_i2c_write(cam, 0x9C, 0x00); + err += sn9c102_i2c_write(cam, 0x9D, 0x99); + err += sn9c102_i2c_write(cam, 0x9E, 0x7F); + err += sn9c102_i2c_write(cam, 0x9F, 0x00); + err += sn9c102_i2c_write(cam, 0xA0, 0x00); + err += sn9c102_i2c_write(cam, 0xA1, 0x00); + + return err; +} + + +static int ov7660_get_ctrl(struct sn9c102_device* cam, + struct v4l2_control* ctrl) +{ + int err = 0; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + if ((ctrl->value = sn9c102_i2c_read(cam, 0x10)) < 0) + return -EIO; + break; + case V4L2_CID_DO_WHITE_BALANCE: + if ((ctrl->value = sn9c102_read_reg(cam, 0x02)) < 0) + return -EIO; + ctrl->value = (ctrl->value & 0x04) ? 1 : 0; + break; + case V4L2_CID_RED_BALANCE: + if ((ctrl->value = sn9c102_read_reg(cam, 0x05)) < 0) + return -EIO; + ctrl->value &= 0x7f; + break; + case V4L2_CID_BLUE_BALANCE: + if ((ctrl->value = sn9c102_read_reg(cam, 0x06)) < 0) + return -EIO; + ctrl->value &= 0x7f; + break; + case SN9C102_V4L2_CID_GREEN_BALANCE: + if ((ctrl->value = sn9c102_read_reg(cam, 0x07)) < 0) + return -EIO; + ctrl->value &= 0x7f; + break; + case SN9C102_V4L2_CID_BAND_FILTER: + if ((ctrl->value = sn9c102_i2c_read(cam, 0x3b)) < 0) + return -EIO; + ctrl->value &= 0x08; + break; + case V4L2_CID_GAIN: + if ((ctrl->value = sn9c102_i2c_read(cam, 0x00)) < 0) + return -EIO; + ctrl->value &= 0x1f; + break; + case V4L2_CID_AUTOGAIN: + if ((ctrl->value = sn9c102_i2c_read(cam, 0x13)) < 0) + return -EIO; + ctrl->value &= 0x01; + break; + default: + return -EINVAL; + } + + return err ? -EIO : 0; +} + + +static int ov7660_set_ctrl(struct sn9c102_device* cam, + const struct v4l2_control* ctrl) +{ + int err = 0; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + err += sn9c102_i2c_write(cam, 0x10, ctrl->value); + break; + case V4L2_CID_DO_WHITE_BALANCE: + err += sn9c102_write_reg(cam, 0x43 | (ctrl->value << 2), 0x02); + break; + case V4L2_CID_RED_BALANCE: + err += sn9c102_write_reg(cam, ctrl->value, 0x05); + break; + case V4L2_CID_BLUE_BALANCE: + err += sn9c102_write_reg(cam, ctrl->value, 0x06); + break; + case SN9C102_V4L2_CID_GREEN_BALANCE: + err += sn9c102_write_reg(cam, ctrl->value, 0x07); + break; + case SN9C102_V4L2_CID_BAND_FILTER: + err += sn9c102_i2c_write(cam, ctrl->value << 3, 0x3b); + break; + case V4L2_CID_GAIN: + err += sn9c102_i2c_write(cam, 0x00, 0x60 + ctrl->value); + break; + case V4L2_CID_AUTOGAIN: + err += sn9c102_i2c_write(cam, 0x13, 0xc0 | + (ctrl->value * 0x07)); + break; + default: + return -EINVAL; + } + + return err ? -EIO : 0; +} + + +static int ov7660_set_crop(struct sn9c102_device* cam, + const struct v4l2_rect* rect) +{ + struct sn9c102_sensor* s = sn9c102_get_sensor(cam); + int err = 0; + u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 1, + v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1; + + err += sn9c102_write_reg(cam, h_start, 0x12); + err += sn9c102_write_reg(cam, v_start, 0x13); + + return err; +} + + +static int ov7660_set_pix_format(struct sn9c102_device* cam, + const struct v4l2_pix_format* pix) +{ + int r0, err = 0; + + r0 = sn9c102_pread_reg(cam, 0x01); + + if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { + err += sn9c102_write_reg(cam, r0 | 0x40, 0x01); + err += sn9c102_write_reg(cam, 0xa2, 0x17); + err += sn9c102_i2c_write(cam, 0x11, 0x00); + } else { + err += sn9c102_write_reg(cam, r0 | 0x40, 0x01); + err += sn9c102_write_reg(cam, 0xa2, 0x17); + err += sn9c102_i2c_write(cam, 0x11, 0x0d); + } + + return err; +} + + +static const struct sn9c102_sensor ov7660 = { + .name = "OV7660", + .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>", + .supported_bridge = BRIDGE_SN9C105 | BRIDGE_SN9C120, + .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE, + .frequency = SN9C102_I2C_100KHZ, + .interface = SN9C102_I2C_2WIRES, + .i2c_slave_id = 0x21, + .init = &ov7660_init, + .qctrl = { + { + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "global gain", + .minimum = 0x00, + .maximum = 0x1f, + .step = 0x01, + .default_value = 0x09, + .flags = 0, + }, + { + .id = V4L2_CID_EXPOSURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "exposure", + .minimum = 0x00, + .maximum = 0xff, + .step = 0x01, + .default_value = 0x27, + .flags = 0, + }, + { + .id = V4L2_CID_DO_WHITE_BALANCE, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "night mode", + .minimum = 0x00, + .maximum = 0x01, + .step = 0x01, + .default_value = 0x00, + .flags = 0, + }, + { + .id = V4L2_CID_RED_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "red balance", + .minimum = 0x00, + .maximum = 0x7f, + .step = 0x01, + .default_value = 0x14, + .flags = 0, + }, + { + .id = V4L2_CID_BLUE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "blue balance", + .minimum = 0x00, + .maximum = 0x7f, + .step = 0x01, + .default_value = 0x14, + .flags = 0, + }, + { + .id = V4L2_CID_AUTOGAIN, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "auto adjust", + .minimum = 0x00, + .maximum = 0x01, + .step = 0x01, + .default_value = 0x01, + .flags = 0, + }, + { + .id = SN9C102_V4L2_CID_GREEN_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "green balance", + .minimum = 0x00, + .maximum = 0x7f, + .step = 0x01, + .default_value = 0x14, + .flags = 0, + }, + { + .id = SN9C102_V4L2_CID_BAND_FILTER, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "band filter", + .minimum = 0x00, + .maximum = 0x01, + .step = 0x01, + .default_value = 0x00, + .flags = 0, + }, + }, + .get_ctrl = &ov7660_get_ctrl, + .set_ctrl = &ov7660_set_ctrl, + .cropcap = { + .bounds = { + .left = 0, + .top = 0, + .width = 640, + .height = 480, + }, + .defrect = { + .left = 0, + .top = 0, + .width = 640, + .height = 480, + }, + }, + .set_crop = &ov7660_set_crop, + .pix_format = { + .width = 640, + .height = 480, + .pixelformat = V4L2_PIX_FMT_JPEG, + .priv = 8, + }, + .set_pix_format = &ov7660_set_pix_format +}; + + +int sn9c102_probe_ov7660(struct sn9c102_device* cam) +{ + int pid, ver, err; + + err = sn9c102_write_const_regs(cam, {0x01, 0xf1}, {0x00, 0xf1}, + {0x01, 0x01}, {0x00, 0x01}, + {0x28, 0x17}); + + pid = sn9c102_i2c_try_read(cam, &ov7660, 0x0a); + ver = sn9c102_i2c_try_read(cam, &ov7660, 0x0b); + if (err || pid < 0 || ver < 0) + return -EIO; + if (pid != 0x76 || ver != 0x60) + return -ENODEV; + + sn9c102_attach_sensor(cam, &ov7660); + + return 0; +} |