[media] introduce gspca-stk1135: Syntek STK1135 driver
Hello, this is a new gspca driver for Syntek STK1135 webcams. The code is completely new, but register values are based on Syntekdriver (stk11xx) by Nicolas VIVIEN (http://syntekdriver.sourceforge.net). Only one webcam type is supported now - vendor 0x174f, device 0x6a31. It's Asus F5RL laptop flippable webcam with MT9M112. The camera works better than in Windows - initializes much faster and provides more resolutions (the sensor can do almost any resolution - just add it to the stk1135_modes[] - could this feature be somehow used by applications to avoid SW scaling?). Autoflip works too - when the camera is flipped around, the image is flipped automatically. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Ondrej Zary
Mauro Carvalho Chehab
parent
d48de1c73b
commit
4ab0620bdc
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@ -338,6 +338,15 @@ config USB_GSPCA_STK014
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To compile this driver as a module, choose M here: the
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To compile this driver as a module, choose M here: the
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module will be called gspca_stk014.
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module will be called gspca_stk014.
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config USB_GSPCA_STK1135
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tristate "Syntek STK1135 USB Camera Driver"
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depends on VIDEO_V4L2 && USB_GSPCA
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help
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Say Y here if you want support for cameras based on the STK1135 chip.
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To compile this driver as a module, choose M here: the
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module will be called gspca_stk1135.
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config USB_GSPCA_STV0680
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config USB_GSPCA_STV0680
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tristate "STV0680 USB Camera Driver"
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tristate "STV0680 USB Camera Driver"
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depends on VIDEO_V4L2 && USB_GSPCA
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depends on VIDEO_V4L2 && USB_GSPCA
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@ -34,6 +34,7 @@ obj-$(CONFIG_USB_GSPCA_SQ905C) += gspca_sq905c.o
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obj-$(CONFIG_USB_GSPCA_SQ930X) += gspca_sq930x.o
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obj-$(CONFIG_USB_GSPCA_SQ930X) += gspca_sq930x.o
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obj-$(CONFIG_USB_GSPCA_SUNPLUS) += gspca_sunplus.o
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obj-$(CONFIG_USB_GSPCA_SUNPLUS) += gspca_sunplus.o
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obj-$(CONFIG_USB_GSPCA_STK014) += gspca_stk014.o
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obj-$(CONFIG_USB_GSPCA_STK014) += gspca_stk014.o
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obj-$(CONFIG_USB_GSPCA_STK1135) += gspca_stk1135.o
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obj-$(CONFIG_USB_GSPCA_STV0680) += gspca_stv0680.o
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obj-$(CONFIG_USB_GSPCA_STV0680) += gspca_stv0680.o
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obj-$(CONFIG_USB_GSPCA_T613) += gspca_t613.o
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obj-$(CONFIG_USB_GSPCA_T613) += gspca_t613.o
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obj-$(CONFIG_USB_GSPCA_TOPRO) += gspca_topro.o
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obj-$(CONFIG_USB_GSPCA_TOPRO) += gspca_topro.o
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@ -78,6 +79,7 @@ gspca_sq905-objs := sq905.o
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gspca_sq905c-objs := sq905c.o
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gspca_sq905c-objs := sq905c.o
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gspca_sq930x-objs := sq930x.o
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gspca_sq930x-objs := sq930x.o
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gspca_stk014-objs := stk014.o
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gspca_stk014-objs := stk014.o
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gspca_stk1135-objs := stk1135.o
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gspca_stv0680-objs := stv0680.o
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gspca_stv0680-objs := stv0680.o
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gspca_sunplus-objs := sunplus.o
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gspca_sunplus-objs := sunplus.o
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gspca_t613-objs := t613.o
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gspca_t613-objs := t613.o
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@ -0,0 +1,685 @@
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/*
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* Syntek STK1135 subdriver
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*
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* Copyright (c) 2013 Ondrej Zary
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*
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* Based on Syntekdriver (stk11xx) by Nicolas VIVIEN:
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* http://syntekdriver.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define MODULE_NAME "stk1135"
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#include "gspca.h"
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#include "stk1135.h"
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MODULE_AUTHOR("Ondrej Zary");
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MODULE_DESCRIPTION("Syntek STK1135 USB Camera Driver");
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MODULE_LICENSE("GPL");
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/* specific webcam descriptor */
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struct sd {
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struct gspca_dev gspca_dev; /* !! must be the first item */
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u8 pkt_seq;
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u8 sensor_page;
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bool flip_status;
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u8 flip_debounce;
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struct v4l2_ctrl *hflip;
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struct v4l2_ctrl *vflip;
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};
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static const struct v4l2_pix_format stk1135_modes[] = {
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{160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 160,
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.sizeimage = 160 * 120,
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.colorspace = V4L2_COLORSPACE_SRGB},
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{176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 176,
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.sizeimage = 176 * 144,
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.colorspace = V4L2_COLORSPACE_SRGB},
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{320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 320,
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.sizeimage = 320 * 240,
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.colorspace = V4L2_COLORSPACE_SRGB},
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{352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 352,
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.sizeimage = 352 * 288,
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.colorspace = V4L2_COLORSPACE_SRGB},
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{640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 640,
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.sizeimage = 640 * 480,
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.colorspace = V4L2_COLORSPACE_SRGB},
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{720, 576, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 720,
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.sizeimage = 720 * 576,
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.colorspace = V4L2_COLORSPACE_SRGB},
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{800, 600, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 800,
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.sizeimage = 800 * 600,
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.colorspace = V4L2_COLORSPACE_SRGB},
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{1024, 768, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 1024,
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.sizeimage = 1024 * 768,
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.colorspace = V4L2_COLORSPACE_SRGB},
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{1280, 1024, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 1280,
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.sizeimage = 1280 * 1024,
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.colorspace = V4L2_COLORSPACE_SRGB},
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};
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/* -- read a register -- */
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static u8 reg_r(struct gspca_dev *gspca_dev, u16 index)
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{
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struct usb_device *dev = gspca_dev->dev;
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int ret;
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if (gspca_dev->usb_err < 0)
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return 0;
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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0x00,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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0x00,
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index,
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gspca_dev->usb_buf, 1,
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500);
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PDEBUG(D_USBI, "reg_r 0x%x=0x%02x", index, gspca_dev->usb_buf[0]);
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if (ret < 0) {
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pr_err("reg_r 0x%x err %d\n", index, ret);
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gspca_dev->usb_err = ret;
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return 0;
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}
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return gspca_dev->usb_buf[0];
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}
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/* -- write a register -- */
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static void reg_w(struct gspca_dev *gspca_dev, u16 index, u8 val)
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{
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int ret;
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struct usb_device *dev = gspca_dev->dev;
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if (gspca_dev->usb_err < 0)
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return;
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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0x01,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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val,
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index,
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NULL,
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0,
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500);
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PDEBUG(D_USBO, "reg_w 0x%x:=0x%02x", index, val);
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if (ret < 0) {
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pr_err("reg_w 0x%x err %d\n", index, ret);
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gspca_dev->usb_err = ret;
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}
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}
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static void reg_w_mask(struct gspca_dev *gspca_dev, u16 index, u8 val, u8 mask)
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{
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val = (reg_r(gspca_dev, index) & ~mask) | (val & mask);
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reg_w(gspca_dev, index, val);
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}
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/* this function is called at probe time */
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static int sd_config(struct gspca_dev *gspca_dev,
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const struct usb_device_id *id)
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{
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gspca_dev->cam.cam_mode = stk1135_modes;
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gspca_dev->cam.nmodes = ARRAY_SIZE(stk1135_modes);
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return 0;
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}
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static int stk1135_serial_wait_ready(struct gspca_dev *gspca_dev)
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{
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int i = 0;
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u8 val;
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do {
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val = reg_r(gspca_dev, STK1135_REG_SICTL + 1);
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if (i++ > 500) { /* maximum retry count */
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pr_err("serial bus timeout: status=0x%02x\n", val);
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return -1;
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}
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/* repeat if BUSY or WRITE/READ not finished */
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} while ((val & 0x10) || !(val & 0x05));
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return 0;
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}
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static u8 sensor_read_8(struct gspca_dev *gspca_dev, u8 addr)
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{
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reg_w(gspca_dev, STK1135_REG_SBUSR, addr);
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/* begin read */
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reg_w(gspca_dev, STK1135_REG_SICTL, 0x20);
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/* wait until finished */
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if (stk1135_serial_wait_ready(gspca_dev)) {
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pr_err("Sensor read failed\n");
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return 0;
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}
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return reg_r(gspca_dev, STK1135_REG_SBUSR + 1);
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}
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static u16 sensor_read_16(struct gspca_dev *gspca_dev, u8 addr)
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{
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return (sensor_read_8(gspca_dev, addr) << 8) |
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sensor_read_8(gspca_dev, 0xf1);
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}
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static void sensor_write_8(struct gspca_dev *gspca_dev, u8 addr, u8 data)
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{
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/* load address and data registers */
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reg_w(gspca_dev, STK1135_REG_SBUSW, addr);
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reg_w(gspca_dev, STK1135_REG_SBUSW + 1, data);
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/* begin write */
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reg_w(gspca_dev, STK1135_REG_SICTL, 0x01);
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/* wait until finished */
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if (stk1135_serial_wait_ready(gspca_dev)) {
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pr_err("Sensor write failed\n");
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return;
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}
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}
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static void sensor_write_16(struct gspca_dev *gspca_dev, u8 addr, u16 data)
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{
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sensor_write_8(gspca_dev, addr, data >> 8);
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sensor_write_8(gspca_dev, 0xf1, data & 0xff);
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}
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static void sensor_set_page(struct gspca_dev *gspca_dev, u8 page)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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if (page != sd->sensor_page) {
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sensor_write_16(gspca_dev, 0xf0, page);
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sd->sensor_page = page;
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}
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}
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static u16 sensor_read(struct gspca_dev *gspca_dev, u16 reg)
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{
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sensor_set_page(gspca_dev, reg >> 8);
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return sensor_read_16(gspca_dev, reg & 0xff);
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}
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static void sensor_write(struct gspca_dev *gspca_dev, u16 reg, u16 val)
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{
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sensor_set_page(gspca_dev, reg >> 8);
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sensor_write_16(gspca_dev, reg & 0xff, val);
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}
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static void sensor_write_mask(struct gspca_dev *gspca_dev,
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u16 reg, u16 val, u16 mask)
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{
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val = (sensor_read(gspca_dev, reg) & ~mask) | (val & mask);
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sensor_write(gspca_dev, reg, val);
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}
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struct sensor_val {
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u16 reg;
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u16 val;
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};
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/* configure MT9M112 sensor */
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static void stk1135_configure_mt9m112(struct gspca_dev *gspca_dev)
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{
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static const struct sensor_val cfg[] = {
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/* restart&reset, chip enable, reserved */
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{ 0x00d, 0x000b }, { 0x00d, 0x0008 }, { 0x035, 0x0022 },
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/* mode ctl: AWB on, AE both, clip aper corr, defect corr, AE */
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{ 0x106, 0x700e },
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{ 0x2dd, 0x18e0 }, /* B-R thresholds, */
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/* AWB */
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{ 0x21f, 0x0180 }, /* Cb and Cr limits */
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{ 0x220, 0xc814 }, { 0x221, 0x8080 }, /* lum limits, RGB gain */
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{ 0x222, 0xa078 }, { 0x223, 0xa078 }, /* R, B limit */
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{ 0x224, 0x5f20 }, { 0x228, 0xea02 }, /* mtx adj lim, adv ctl */
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{ 0x229, 0x867a }, /* wide gates */
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/* Color correction */
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/* imager gains base, delta, delta signs */
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{ 0x25e, 0x594c }, { 0x25f, 0x4d51 }, { 0x260, 0x0002 },
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/* AWB adv ctl 2, gain offs */
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{ 0x2ef, 0x0008 }, { 0x2f2, 0x0000 },
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/* base matrix signs, scale K1-5, K6-9 */
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{ 0x202, 0x00ee }, { 0x203, 0x3923 }, { 0x204, 0x0724 },
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/* base matrix coef */
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{ 0x209, 0x00cd }, { 0x20a, 0x0093 }, { 0x20b, 0x0004 },/*K1-3*/
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{ 0x20c, 0x005c }, { 0x20d, 0x00d9 }, { 0x20e, 0x0053 },/*K4-6*/
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{ 0x20f, 0x0008 }, { 0x210, 0x0091 }, { 0x211, 0x00cf },/*K7-9*/
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{ 0x215, 0x0000 }, /* delta mtx signs */
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/* delta matrix coef */
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{ 0x216, 0x0000 }, { 0x217, 0x0000 }, { 0x218, 0x0000 },/*D1-3*/
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{ 0x219, 0x0000 }, { 0x21a, 0x0000 }, { 0x21b, 0x0000 },/*D4-6*/
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{ 0x21c, 0x0000 }, { 0x21d, 0x0000 }, { 0x21e, 0x0000 },/*D7-9*/
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||||||
|
/* enable & disable manual WB to apply color corr. settings */
|
||||||
|
{ 0x106, 0xf00e }, { 0x106, 0x700e },
|
||||||
|
|
||||||
|
/* Lens shading correction */
|
||||||
|
{ 0x180, 0x0007 }, /* control */
|
||||||
|
/* vertical knee 0, 2+1, 4+3 */
|
||||||
|
{ 0x181, 0xde13 }, { 0x182, 0xebe2 }, { 0x183, 0x00f6 }, /* R */
|
||||||
|
{ 0x184, 0xe114 }, { 0x185, 0xeadd }, { 0x186, 0xfdf6 }, /* G */
|
||||||
|
{ 0x187, 0xe511 }, { 0x188, 0xede6 }, { 0x189, 0xfbf7 }, /* B */
|
||||||
|
/* horizontal knee 0, 2+1, 4+3, 5 */
|
||||||
|
{ 0x18a, 0xd613 }, { 0x18b, 0xedec }, /* R .. */
|
||||||
|
{ 0x18c, 0xf9f2 }, { 0x18d, 0x0000 }, /* .. R */
|
||||||
|
{ 0x18e, 0xd815 }, { 0x18f, 0xe9ea }, /* G .. */
|
||||||
|
{ 0x190, 0xf9f1 }, { 0x191, 0x0002 }, /* .. G */
|
||||||
|
{ 0x192, 0xde10 }, { 0x193, 0xefef }, /* B .. */
|
||||||
|
{ 0x194, 0xfbf4 }, { 0x195, 0x0002 }, /* .. B */
|
||||||
|
/* vertical knee 6+5, 8+7 */
|
||||||
|
{ 0x1b6, 0x0e06 }, { 0x1b7, 0x2713 }, /* R */
|
||||||
|
{ 0x1b8, 0x1106 }, { 0x1b9, 0x2713 }, /* G */
|
||||||
|
{ 0x1ba, 0x0c03 }, { 0x1bb, 0x2a0f }, /* B */
|
||||||
|
/* horizontal knee 7+6, 9+8, 10 */
|
||||||
|
{ 0x1bc, 0x1208 }, { 0x1bd, 0x1a16 }, { 0x1be, 0x0022 }, /* R */
|
||||||
|
{ 0x1bf, 0x150a }, { 0x1c0, 0x1c1a }, { 0x1c1, 0x002d }, /* G */
|
||||||
|
{ 0x1c2, 0x1109 }, { 0x1c3, 0x1414 }, { 0x1c4, 0x002a }, /* B */
|
||||||
|
{ 0x106, 0x740e }, /* enable lens shading correction */
|
||||||
|
|
||||||
|
/* Gamma correction - context A */
|
||||||
|
{ 0x153, 0x0b03 }, { 0x154, 0x4722 }, { 0x155, 0xac82 },
|
||||||
|
{ 0x156, 0xdac7 }, { 0x157, 0xf5e9 }, { 0x158, 0xff00 },
|
||||||
|
/* Gamma correction - context B */
|
||||||
|
{ 0x1dc, 0x0b03 }, { 0x1dd, 0x4722 }, { 0x1de, 0xac82 },
|
||||||
|
{ 0x1df, 0xdac7 }, { 0x1e0, 0xf5e9 }, { 0x1e1, 0xff00 },
|
||||||
|
|
||||||
|
/* output format: RGB, invert output pixclock, output bayer */
|
||||||
|
{ 0x13a, 0x4300 }, { 0x19b, 0x4300 }, /* for context A, B */
|
||||||
|
{ 0x108, 0x0180 }, /* format control - enable bayer row flip */
|
||||||
|
|
||||||
|
{ 0x22f, 0xd100 }, { 0x29c, 0xd100 }, /* AE A, B */
|
||||||
|
|
||||||
|
/* default prg conf, prg ctl - by 0x2d2, prg advance - PA1 */
|
||||||
|
{ 0x2d2, 0x0000 }, { 0x2cc, 0x0004 }, { 0x2cb, 0x0001 },
|
||||||
|
|
||||||
|
{ 0x22e, 0x0c3c }, { 0x267, 0x1010 }, /* AE tgt ctl, gain lim */
|
||||||
|
|
||||||
|
/* PLL */
|
||||||
|
{ 0x065, 0xa000 }, /* clk ctl - enable PLL (clear bit 14) */
|
||||||
|
{ 0x066, 0x2003 }, { 0x067, 0x0501 }, /* PLL M=128, N=3, P=1 */
|
||||||
|
{ 0x065, 0x2000 }, /* disable PLL bypass (clear bit 15) */
|
||||||
|
|
||||||
|
{ 0x005, 0x01b8 }, { 0x007, 0x00d8 }, /* horiz blanking B, A */
|
||||||
|
|
||||||
|
/* AE line size, shutter delay limit */
|
||||||
|
{ 0x239, 0x06c0 }, { 0x23b, 0x040e }, /* for context A */
|
||||||
|
{ 0x23a, 0x06c0 }, { 0x23c, 0x0564 }, /* for context B */
|
||||||
|
/* shutter width basis 60Hz, 50Hz */
|
||||||
|
{ 0x257, 0x0208 }, { 0x258, 0x0271 }, /* for context A */
|
||||||
|
{ 0x259, 0x0209 }, { 0x25a, 0x0271 }, /* for context B */
|
||||||
|
|
||||||
|
{ 0x25c, 0x120d }, { 0x25d, 0x1712 }, /* flicker 60Hz, 50Hz */
|
||||||
|
{ 0x264, 0x5e1c }, /* reserved */
|
||||||
|
/* flicker, AE gain limits, gain zone limits */
|
||||||
|
{ 0x25b, 0x0003 }, { 0x236, 0x7810 }, { 0x237, 0x8304 },
|
||||||
|
|
||||||
|
{ 0x008, 0x0021 }, /* vert blanking A */
|
||||||
|
};
|
||||||
|
int i;
|
||||||
|
u16 width, height;
|
||||||
|
|
||||||
|
for (i = 0; i < ARRAY_SIZE(cfg); i++)
|
||||||
|
sensor_write(gspca_dev, cfg[i].reg, cfg[i].val);
|
||||||
|
|
||||||
|
/* set output size */
|
||||||
|
width = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].width;
|
||||||
|
height = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].height;
|
||||||
|
if (width <= 640) { /* use context A (half readout speed by default) */
|
||||||
|
sensor_write(gspca_dev, 0x1a7, width);
|
||||||
|
sensor_write(gspca_dev, 0x1aa, height);
|
||||||
|
/* set read mode context A */
|
||||||
|
sensor_write(gspca_dev, 0x0c8, 0x0000);
|
||||||
|
/* set resize, read mode, vblank, hblank context A */
|
||||||
|
sensor_write(gspca_dev, 0x2c8, 0x0000);
|
||||||
|
} else { /* use context B (full readout speed by default) */
|
||||||
|
sensor_write(gspca_dev, 0x1a1, width);
|
||||||
|
sensor_write(gspca_dev, 0x1a4, height);
|
||||||
|
/* set read mode context B */
|
||||||
|
sensor_write(gspca_dev, 0x0c8, 0x0008);
|
||||||
|
/* set resize, read mode, vblank, hblank context B */
|
||||||
|
sensor_write(gspca_dev, 0x2c8, 0x040b);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void stk1135_configure_clock(struct gspca_dev *gspca_dev)
|
||||||
|
{
|
||||||
|
/* configure SCLKOUT */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_TMGEN, 0x12);
|
||||||
|
/* set 1 clock per pixel */
|
||||||
|
/* and positive edge clocked pulse high when pixel counter = 0 */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_TCP1 + 0, 0x41);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_TCP1 + 1, 0x00);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_TCP1 + 2, 0x00);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_TCP1 + 3, 0x00);
|
||||||
|
|
||||||
|
/* enable CLKOUT for sensor */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SENSO + 0, 0x10);
|
||||||
|
/* disable STOP clock */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SENSO + 1, 0x00);
|
||||||
|
/* set lower 8 bits of PLL feedback divider */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SENSO + 3, 0x07);
|
||||||
|
/* set other PLL parameters */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_PLLFD, 0x06);
|
||||||
|
/* enable timing generator */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_TMGEN, 0x80);
|
||||||
|
/* enable PLL */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SENSO + 2, 0x04);
|
||||||
|
|
||||||
|
/* set serial interface clock divider (30MHz/0x1f*16+2) = 60240 kHz) */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SICTL + 2, 0x1f);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void stk1135_camera_disable(struct gspca_dev *gspca_dev)
|
||||||
|
{
|
||||||
|
/* set capture end Y position to 0 */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CIEPO + 2, 0x00);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CIEPO + 3, 0x00);
|
||||||
|
/* disable capture */
|
||||||
|
reg_w_mask(gspca_dev, STK1135_REG_SCTRL, 0x00, 0x80);
|
||||||
|
|
||||||
|
/* enable sensor standby and diasble chip enable */
|
||||||
|
sensor_write_mask(gspca_dev, 0x00d, 0x0004, 0x000c);
|
||||||
|
|
||||||
|
/* disable PLL */
|
||||||
|
reg_w_mask(gspca_dev, STK1135_REG_SENSO + 2, 0x00, 0x01);
|
||||||
|
/* disable timing generator */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_TMGEN, 0x00);
|
||||||
|
/* enable STOP clock */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SENSO + 1, 0x20);
|
||||||
|
/* disable CLKOUT for sensor */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SENSO, 0x00);
|
||||||
|
|
||||||
|
/* disable sensor (GPIO5) and enable GPIO0,3,6 (?) - sensor standby? */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_GCTRL, 0x49);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* this function is called at probe and resume time */
|
||||||
|
static int sd_init(struct gspca_dev *gspca_dev)
|
||||||
|
{
|
||||||
|
u16 sensor_id;
|
||||||
|
char *sensor_name;
|
||||||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||||||
|
|
||||||
|
/* set GPIO3,4,5,6 direction to output */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_GCTRL + 2, 0x78);
|
||||||
|
/* enable sensor (GPIO5) */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_GCTRL, (1 << 5));
|
||||||
|
/* disable ROM interface */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_GCTRL + 3, 0x80);
|
||||||
|
/* enable interrupts from GPIO8 (flip sensor) and GPIO9 (???) */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_ICTRL + 1, 0x00);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_ICTRL + 3, 0x03);
|
||||||
|
/* enable remote wakeup from GPIO9 (???) */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_RMCTL + 1, 0x00);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_RMCTL + 3, 0x02);
|
||||||
|
|
||||||
|
/* reset serial interface */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SICTL, 0x80);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SICTL, 0x00);
|
||||||
|
/* set sensor address */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SICTL + 3, 0xba);
|
||||||
|
/* disable alt 2-wire serial interface */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_ASIC + 3, 0x00);
|
||||||
|
|
||||||
|
stk1135_configure_clock(gspca_dev);
|
||||||
|
|
||||||
|
/* read sensor ID */
|
||||||
|
sd->sensor_page = 0xff;
|
||||||
|
sensor_id = sensor_read(gspca_dev, 0x000);
|
||||||
|
|
||||||
|
switch (sensor_id) {
|
||||||
|
case 0x148c:
|
||||||
|
sensor_name = "MT9M112";
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
sensor_name = "unknown";
|
||||||
|
}
|
||||||
|
pr_info("Detected sensor type %s (0x%x)\n", sensor_name, sensor_id);
|
||||||
|
|
||||||
|
stk1135_camera_disable(gspca_dev);
|
||||||
|
|
||||||
|
return gspca_dev->usb_err;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* -- start the camera -- */
|
||||||
|
static int sd_start(struct gspca_dev *gspca_dev)
|
||||||
|
{
|
||||||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||||||
|
u16 width, height;
|
||||||
|
|
||||||
|
/* enable sensor (GPIO5) */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_GCTRL, (1 << 5));
|
||||||
|
|
||||||
|
stk1135_configure_clock(gspca_dev);
|
||||||
|
|
||||||
|
/* set capture start position X = 0, Y = 0 */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CISPO + 0, 0x00);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CISPO + 1, 0x00);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CISPO + 2, 0x00);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CISPO + 3, 0x00);
|
||||||
|
|
||||||
|
/* set capture end position */
|
||||||
|
width = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].width;
|
||||||
|
height = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].height;
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CIEPO + 0, width & 0xff);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CIEPO + 1, width >> 8);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CIEPO + 2, height & 0xff);
|
||||||
|
reg_w(gspca_dev, STK1135_REG_CIEPO + 3, height >> 8);
|
||||||
|
|
||||||
|
/* set 8-bit mode */
|
||||||
|
reg_w(gspca_dev, STK1135_REG_SCTRL, 0x20);
|
||||||
|
|
||||||
|
stk1135_configure_mt9m112(gspca_dev);
|
||||||
|
|
||||||
|
/* enable capture */
|
||||||
|
reg_w_mask(gspca_dev, STK1135_REG_SCTRL, 0x80, 0x80);
|
||||||
|
|
||||||
|
if (gspca_dev->usb_err >= 0)
|
||||||
|
PDEBUG(D_STREAM, "camera started alt: 0x%02x",
|
||||||
|
gspca_dev->alt);
|
||||||
|
|
||||||
|
sd->pkt_seq = 0;
|
||||||
|
|
||||||
|
return gspca_dev->usb_err;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void sd_stopN(struct gspca_dev *gspca_dev)
|
||||||
|
{
|
||||||
|
struct usb_device *dev = gspca_dev->dev;
|
||||||
|
|
||||||
|
usb_set_interface(dev, gspca_dev->iface, 0);
|
||||||
|
|
||||||
|
stk1135_camera_disable(gspca_dev);
|
||||||
|
|
||||||
|
PDEBUG(D_STREAM, "camera stopped");
|
||||||
|
}
|
||||||
|
|
||||||
|
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
|
||||||
|
u8 *data, /* isoc packet */
|
||||||
|
int len) /* iso packet length */
|
||||||
|
{
|
||||||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||||||
|
int skip = sizeof(struct stk1135_pkt_header);
|
||||||
|
bool flip;
|
||||||
|
enum gspca_packet_type pkt_type = INTER_PACKET;
|
||||||
|
struct stk1135_pkt_header *hdr = (void *)data;
|
||||||
|
u8 seq;
|
||||||
|
|
||||||
|
if (len < 4) {
|
||||||
|
PDEBUG(D_PACK, "received short packet (less than 4 bytes)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* GPIO 8 is flip sensor (1 = normal position, 0 = flipped to back) */
|
||||||
|
flip = !(le16_to_cpu(hdr->gpio) & (1 << 8));
|
||||||
|
/* it's a switch, needs software debounce */
|
||||||
|
if (sd->flip_status != flip)
|
||||||
|
sd->flip_debounce++;
|
||||||
|
else
|
||||||
|
sd->flip_debounce = 0;
|
||||||
|
|
||||||
|
/* check sequence number (not present in new frame packets) */
|
||||||
|
if (!(hdr->flags & STK1135_HDR_FRAME_START)) {
|
||||||
|
seq = hdr->seq & STK1135_HDR_SEQ_MASK;
|
||||||
|
if (seq != sd->pkt_seq) {
|
||||||
|
PDEBUG(D_PACK, "received out-of-sequence packet");
|
||||||
|
/* resync sequence and discard packet */
|
||||||
|
sd->pkt_seq = seq;
|
||||||
|
gspca_dev->last_packet_type = DISCARD_PACKET;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sd->pkt_seq++;
|
||||||
|
if (sd->pkt_seq > STK1135_HDR_SEQ_MASK)
|
||||||
|
sd->pkt_seq = 0;
|
||||||
|
|
||||||
|
if (len == sizeof(struct stk1135_pkt_header))
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (hdr->flags & STK1135_HDR_FRAME_START) { /* new frame */
|
||||||
|
skip = 8; /* the header is longer */
|
||||||
|
gspca_frame_add(gspca_dev, LAST_PACKET, data, 0);
|
||||||
|
pkt_type = FIRST_PACKET;
|
||||||
|
}
|
||||||
|
gspca_frame_add(gspca_dev, pkt_type, data + skip, len - skip);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void sethflip(struct gspca_dev *gspca_dev, s32 val)
|
||||||
|
{
|
||||||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||||||
|
|
||||||
|
if (sd->flip_status)
|
||||||
|
val = !val;
|
||||||
|
sensor_write_mask(gspca_dev, 0x020, val ? 0x0002 : 0x0000 , 0x0002);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void setvflip(struct gspca_dev *gspca_dev, s32 val)
|
||||||
|
{
|
||||||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||||||
|
|
||||||
|
if (sd->flip_status)
|
||||||
|
val = !val;
|
||||||
|
sensor_write_mask(gspca_dev, 0x020, val ? 0x0001 : 0x0000 , 0x0001);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void stk1135_dq_callback(struct gspca_dev *gspca_dev)
|
||||||
|
{
|
||||||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||||||
|
|
||||||
|
if (sd->flip_debounce > 100) {
|
||||||
|
sd->flip_status = !sd->flip_status;
|
||||||
|
sethflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip));
|
||||||
|
setvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->vflip));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
|
||||||
|
{
|
||||||
|
struct gspca_dev *gspca_dev =
|
||||||
|
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
|
||||||
|
|
||||||
|
gspca_dev->usb_err = 0;
|
||||||
|
|
||||||
|
if (!gspca_dev->streaming)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
switch (ctrl->id) {
|
||||||
|
case V4L2_CID_HFLIP:
|
||||||
|
sethflip(gspca_dev, ctrl->val);
|
||||||
|
break;
|
||||||
|
case V4L2_CID_VFLIP:
|
||||||
|
setvflip(gspca_dev, ctrl->val);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
return gspca_dev->usb_err;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct v4l2_ctrl_ops sd_ctrl_ops = {
|
||||||
|
.s_ctrl = sd_s_ctrl,
|
||||||
|
};
|
||||||
|
|
||||||
|
static int sd_init_controls(struct gspca_dev *gspca_dev)
|
||||||
|
{
|
||||||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||||||
|
struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
|
||||||
|
|
||||||
|
gspca_dev->vdev.ctrl_handler = hdl;
|
||||||
|
v4l2_ctrl_handler_init(hdl, 2);
|
||||||
|
sd->hflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||||
|
V4L2_CID_HFLIP, 0, 1, 1, 0);
|
||||||
|
sd->vflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||||
|
V4L2_CID_VFLIP, 0, 1, 1, 0);
|
||||||
|
|
||||||
|
if (hdl->error) {
|
||||||
|
pr_err("Could not initialize controls\n");
|
||||||
|
return hdl->error;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* sub-driver description */
|
||||||
|
static const struct sd_desc sd_desc = {
|
||||||
|
.name = MODULE_NAME,
|
||||||
|
.config = sd_config,
|
||||||
|
.init = sd_init,
|
||||||
|
.init_controls = sd_init_controls,
|
||||||
|
.start = sd_start,
|
||||||
|
.stopN = sd_stopN,
|
||||||
|
.pkt_scan = sd_pkt_scan,
|
||||||
|
.dq_callback = stk1135_dq_callback,
|
||||||
|
};
|
||||||
|
|
||||||
|
/* -- module initialisation -- */
|
||||||
|
static const struct usb_device_id device_table[] = {
|
||||||
|
{USB_DEVICE(0x174f, 0x6a31)}, /* ASUS laptop, MT9M112 sensor */
|
||||||
|
{}
|
||||||
|
};
|
||||||
|
MODULE_DEVICE_TABLE(usb, device_table);
|
||||||
|
|
||||||
|
/* -- device connect -- */
|
||||||
|
static int sd_probe(struct usb_interface *intf,
|
||||||
|
const struct usb_device_id *id)
|
||||||
|
{
|
||||||
|
return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
|
||||||
|
THIS_MODULE);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct usb_driver sd_driver = {
|
||||||
|
.name = MODULE_NAME,
|
||||||
|
.id_table = device_table,
|
||||||
|
.probe = sd_probe,
|
||||||
|
.disconnect = gspca_disconnect,
|
||||||
|
#ifdef CONFIG_PM
|
||||||
|
.suspend = gspca_suspend,
|
||||||
|
.resume = gspca_resume,
|
||||||
|
.reset_resume = gspca_resume,
|
||||||
|
#endif
|
||||||
|
};
|
||||||
|
|
||||||
|
module_usb_driver(sd_driver);
|
||||||
|
|
@ -0,0 +1,57 @@
|
||||||
|
/*
|
||||||
|
* STK1135 registers
|
||||||
|
*
|
||||||
|
* Copyright (c) 2013 Ondrej Zary
|
||||||
|
*
|
||||||
|
* 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
|
||||||
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define STK1135_REG_GCTRL 0x000 /* GPIO control */
|
||||||
|
#define STK1135_REG_ICTRL 0x004 /* Interrupt control */
|
||||||
|
#define STK1135_REG_IDATA 0x008 /* Interrupt data */
|
||||||
|
#define STK1135_REG_RMCTL 0x00c /* Remote wakeup control */
|
||||||
|
#define STK1135_REG_POSVA 0x010 /* Power-on strapping data */
|
||||||
|
|
||||||
|
#define STK1135_REG_SENSO 0x018 /* Sensor select options */
|
||||||
|
#define STK1135_REG_PLLFD 0x01c /* PLL frequency divider */
|
||||||
|
|
||||||
|
#define STK1135_REG_SCTRL 0x100 /* Sensor control register */
|
||||||
|
#define STK1135_REG_DCTRL 0x104 /* Decimation control register */
|
||||||
|
#define STK1135_REG_CISPO 0x110 /* Capture image starting position */
|
||||||
|
#define STK1135_REG_CIEPO 0x114 /* Capture image ending position */
|
||||||
|
#define STK1135_REG_TCTRL 0x120 /* Test data control */
|
||||||
|
|
||||||
|
#define STK1135_REG_SICTL 0x200 /* Serial interface control register */
|
||||||
|
#define STK1135_REG_SBUSW 0x204 /* Serial bus write */
|
||||||
|
#define STK1135_REG_SBUSR 0x208 /* Serial bus read */
|
||||||
|
#define STK1135_REG_SCSI 0x20c /* Software control serial interface */
|
||||||
|
#define STK1135_REG_GSBWP 0x210 /* General serial bus write port */
|
||||||
|
#define STK1135_REG_GSBRP 0x214 /* General serial bus read port */
|
||||||
|
#define STK1135_REG_ASIC 0x2fc /* Alternate serial interface control */
|
||||||
|
|
||||||
|
#define STK1135_REG_TMGEN 0x300 /* Timing generator */
|
||||||
|
#define STK1135_REG_TCP1 0x350 /* Timing control parameter 1 */
|
||||||
|
|
||||||
|
struct stk1135_pkt_header {
|
||||||
|
u8 flags;
|
||||||
|
u8 seq;
|
||||||
|
__le16 gpio;
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
#define STK1135_HDR_FRAME_START (1 << 7)
|
||||||
|
#define STK1135_HDR_ODD (1 << 6)
|
||||||
|
#define STK1135_HDR_I2C_VBLANK (1 << 5)
|
||||||
|
|
||||||
|
#define STK1135_HDR_SEQ_MASK 0x3f
|
||||||
Loading…
Reference in New Issue