forked from Minki/linux
37d5efb019
Use a more typical logging style. The current macro hides the gspca_dev argument so add it to the macro uses instead. Miscellanea: o Add missing '\n' terminations to formats o Realign arguments to open parenthesis o Remove commented out uses of PDEBUG Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
444 lines
11 KiB
C
444 lines
11 KiB
C
/*
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* Syntek DV4000 (STK014) subdriver
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*
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* Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr)
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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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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define MODULE_NAME "stk014"
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#include "gspca.h"
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#include "jpeg.h"
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MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
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MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver");
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MODULE_LICENSE("GPL");
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#define QUALITY 50
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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 jpeg_hdr[JPEG_HDR_SZ];
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};
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static const struct v4l2_pix_format vga_mode[] = {
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{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
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.bytesperline = 320,
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.sizeimage = 320 * 240 * 3 / 8 + 590,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.priv = 1},
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{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
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.bytesperline = 640,
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.sizeimage = 640 * 480 * 3 / 8 + 590,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.priv = 0},
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};
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/* -- read a register -- */
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static u8 reg_r(struct gspca_dev *gspca_dev,
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__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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if (ret < 0) {
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pr_err("reg_r err %d\n", 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,
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__u16 index, __u16 value)
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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;
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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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value,
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index,
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NULL,
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0,
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500);
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if (ret < 0) {
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pr_err("reg_w err %d\n", ret);
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gspca_dev->usb_err = ret;
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}
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}
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/* -- get a bulk value (4 bytes) -- */
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static void rcv_val(struct gspca_dev *gspca_dev,
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int ads)
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{
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struct usb_device *dev = gspca_dev->dev;
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int alen, ret;
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reg_w(gspca_dev, 0x634, (ads >> 16) & 0xff);
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reg_w(gspca_dev, 0x635, (ads >> 8) & 0xff);
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reg_w(gspca_dev, 0x636, ads & 0xff);
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reg_w(gspca_dev, 0x637, 0);
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reg_w(gspca_dev, 0x638, 4); /* len & 0xff */
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reg_w(gspca_dev, 0x639, 0); /* len >> 8 */
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reg_w(gspca_dev, 0x63a, 0);
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reg_w(gspca_dev, 0x63b, 0);
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reg_w(gspca_dev, 0x630, 5);
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if (gspca_dev->usb_err < 0)
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return;
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ret = usb_bulk_msg(dev,
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usb_rcvbulkpipe(dev, 0x05),
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gspca_dev->usb_buf,
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4, /* length */
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&alen,
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500); /* timeout in milliseconds */
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if (ret < 0) {
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pr_err("rcv_val err %d\n", ret);
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gspca_dev->usb_err = ret;
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}
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}
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/* -- send a bulk value -- */
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static void snd_val(struct gspca_dev *gspca_dev,
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int ads,
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unsigned int val)
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{
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struct usb_device *dev = gspca_dev->dev;
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int alen, ret;
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__u8 seq = 0;
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if (ads == 0x003f08) {
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reg_r(gspca_dev, 0x0704);
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seq = reg_r(gspca_dev, 0x0705);
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reg_r(gspca_dev, 0x0650);
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reg_w(gspca_dev, 0x654, seq);
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} else {
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reg_w(gspca_dev, 0x654, (ads >> 16) & 0xff);
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}
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reg_w(gspca_dev, 0x655, (ads >> 8) & 0xff);
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reg_w(gspca_dev, 0x656, ads & 0xff);
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reg_w(gspca_dev, 0x657, 0);
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reg_w(gspca_dev, 0x658, 0x04); /* size */
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reg_w(gspca_dev, 0x659, 0);
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reg_w(gspca_dev, 0x65a, 0);
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reg_w(gspca_dev, 0x65b, 0);
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reg_w(gspca_dev, 0x650, 5);
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if (gspca_dev->usb_err < 0)
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return;
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gspca_dev->usb_buf[0] = val >> 24;
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gspca_dev->usb_buf[1] = val >> 16;
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gspca_dev->usb_buf[2] = val >> 8;
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gspca_dev->usb_buf[3] = val;
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ret = usb_bulk_msg(dev,
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usb_sndbulkpipe(dev, 6),
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gspca_dev->usb_buf,
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4,
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&alen,
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500); /* timeout in milliseconds */
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if (ret < 0) {
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pr_err("snd_val err %d\n", ret);
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gspca_dev->usb_err = ret;
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} else {
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if (ads == 0x003f08) {
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seq += 4;
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seq &= 0x3f;
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reg_w(gspca_dev, 0x705, seq);
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}
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}
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}
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/* set a camera parameter */
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static void set_par(struct gspca_dev *gspca_dev,
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int parval)
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{
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snd_val(gspca_dev, 0x003f08, parval);
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}
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static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
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{
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int parval;
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parval = 0x06000000 /* whiteness */
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+ (val << 16);
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set_par(gspca_dev, parval);
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}
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static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
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{
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int parval;
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parval = 0x07000000 /* contrast */
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+ (val << 16);
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set_par(gspca_dev, parval);
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}
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static void setcolors(struct gspca_dev *gspca_dev, s32 val)
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{
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int parval;
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parval = 0x08000000 /* saturation */
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+ (val << 16);
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set_par(gspca_dev, parval);
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}
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static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
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{
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set_par(gspca_dev, val == 1
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? 0x33640000 /* 50 Hz */
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: 0x33780000); /* 60 Hz */
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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 = vga_mode;
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gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
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return 0;
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}
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/* this function is called at probe and resume time */
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static int sd_init(struct gspca_dev *gspca_dev)
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{
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u8 ret;
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/* check if the device responds */
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usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
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ret = reg_r(gspca_dev, 0x0740);
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if (gspca_dev->usb_err >= 0) {
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if (ret != 0xff) {
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pr_err("init reg: 0x%02x\n", ret);
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gspca_dev->usb_err = -EIO;
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}
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}
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return gspca_dev->usb_err;
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}
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/* -- start the camera -- */
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static int sd_start(struct gspca_dev *gspca_dev)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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int ret, value;
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/* create the JPEG header */
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jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
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gspca_dev->pixfmt.width,
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0x22); /* JPEG 411 */
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jpeg_set_qual(sd->jpeg_hdr, QUALITY);
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/* work on alternate 1 */
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usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
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set_par(gspca_dev, 0x10000000);
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set_par(gspca_dev, 0x00000000);
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set_par(gspca_dev, 0x8002e001);
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set_par(gspca_dev, 0x14000000);
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if (gspca_dev->pixfmt.width > 320)
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value = 0x8002e001; /* 640x480 */
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else
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value = 0x4001f000; /* 320x240 */
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set_par(gspca_dev, value);
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ret = usb_set_interface(gspca_dev->dev,
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gspca_dev->iface,
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gspca_dev->alt);
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if (ret < 0) {
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pr_err("set intf %d %d failed\n",
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gspca_dev->iface, gspca_dev->alt);
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gspca_dev->usb_err = ret;
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goto out;
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}
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reg_r(gspca_dev, 0x0630);
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rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */
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reg_r(gspca_dev, 0x0650);
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snd_val(gspca_dev, 0x000020, 0xffffffff);
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reg_w(gspca_dev, 0x0620, 0);
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reg_w(gspca_dev, 0x0630, 0);
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reg_w(gspca_dev, 0x0640, 0);
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reg_w(gspca_dev, 0x0650, 0);
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reg_w(gspca_dev, 0x0660, 0);
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set_par(gspca_dev, 0x09800000); /* Red ? */
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set_par(gspca_dev, 0x0a800000); /* Green ? */
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set_par(gspca_dev, 0x0b800000); /* Blue ? */
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set_par(gspca_dev, 0x0d030000); /* Gamma ? */
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/* start the video flow */
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set_par(gspca_dev, 0x01000000);
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set_par(gspca_dev, 0x01000000);
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if (gspca_dev->usb_err >= 0)
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gspca_dbg(gspca_dev, D_STREAM, "camera started alt: 0x%02x\n",
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gspca_dev->alt);
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out:
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return gspca_dev->usb_err;
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}
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static void sd_stopN(struct gspca_dev *gspca_dev)
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{
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struct usb_device *dev = gspca_dev->dev;
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set_par(gspca_dev, 0x02000000);
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set_par(gspca_dev, 0x02000000);
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usb_set_interface(dev, gspca_dev->iface, 1);
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reg_r(gspca_dev, 0x0630);
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rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */
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reg_r(gspca_dev, 0x0650);
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snd_val(gspca_dev, 0x000020, 0xffffffff);
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reg_w(gspca_dev, 0x0620, 0);
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reg_w(gspca_dev, 0x0630, 0);
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reg_w(gspca_dev, 0x0640, 0);
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reg_w(gspca_dev, 0x0650, 0);
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reg_w(gspca_dev, 0x0660, 0);
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gspca_dbg(gspca_dev, D_STREAM, "camera stopped\n");
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}
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static void sd_pkt_scan(struct gspca_dev *gspca_dev,
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u8 *data, /* isoc packet */
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int len) /* iso packet length */
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{
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struct sd *sd = (struct sd *) gspca_dev;
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static unsigned char ffd9[] = {0xff, 0xd9};
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/* a frame starts with:
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* - 0xff 0xfe
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* - 0x08 0x00 - length (little endian ?!)
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* - 4 bytes = size of whole frame (BE - including header)
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* - 0x00 0x0c
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* - 0xff 0xd8
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* - .. JPEG image with escape sequences (ff 00)
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* (without ending - ff d9)
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*/
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if (data[0] == 0xff && data[1] == 0xfe) {
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gspca_frame_add(gspca_dev, LAST_PACKET,
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ffd9, 2);
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/* put the JPEG 411 header */
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gspca_frame_add(gspca_dev, FIRST_PACKET,
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sd->jpeg_hdr, JPEG_HDR_SZ);
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/* beginning of the frame */
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#define STKHDRSZ 12
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data += STKHDRSZ;
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len -= STKHDRSZ;
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}
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gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
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}
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static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct gspca_dev *gspca_dev =
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container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
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gspca_dev->usb_err = 0;
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if (!gspca_dev->streaming)
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return 0;
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switch (ctrl->id) {
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case V4L2_CID_BRIGHTNESS:
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setbrightness(gspca_dev, ctrl->val);
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break;
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case V4L2_CID_CONTRAST:
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setcontrast(gspca_dev, ctrl->val);
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break;
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case V4L2_CID_SATURATION:
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setcolors(gspca_dev, ctrl->val);
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break;
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case V4L2_CID_POWER_LINE_FREQUENCY:
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setlightfreq(gspca_dev, ctrl->val);
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break;
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}
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return gspca_dev->usb_err;
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}
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static const struct v4l2_ctrl_ops sd_ctrl_ops = {
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.s_ctrl = sd_s_ctrl,
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};
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static int sd_init_controls(struct gspca_dev *gspca_dev)
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{
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struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
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gspca_dev->vdev.ctrl_handler = hdl;
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v4l2_ctrl_handler_init(hdl, 4);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_CONTRAST, 0, 255, 1, 127);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_SATURATION, 0, 255, 1, 127);
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v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
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V4L2_CID_POWER_LINE_FREQUENCY,
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V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 1,
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V4L2_CID_POWER_LINE_FREQUENCY_50HZ);
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if (hdl->error) {
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pr_err("Could not initialize controls\n");
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return hdl->error;
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}
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return 0;
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}
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/* sub-driver description */
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static const struct sd_desc sd_desc = {
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.name = MODULE_NAME,
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.config = sd_config,
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.init = sd_init,
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.init_controls = sd_init_controls,
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.start = sd_start,
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.stopN = sd_stopN,
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.pkt_scan = sd_pkt_scan,
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};
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/* -- module initialisation -- */
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static const struct usb_device_id device_table[] = {
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{USB_DEVICE(0x05e1, 0x0893)},
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{}
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};
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MODULE_DEVICE_TABLE(usb, device_table);
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/* -- device connect -- */
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static int sd_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
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THIS_MODULE);
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}
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static struct usb_driver sd_driver = {
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.name = MODULE_NAME,
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.id_table = device_table,
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.probe = sd_probe,
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.disconnect = gspca_disconnect,
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#ifdef CONFIG_PM
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.suspend = gspca_suspend,
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.resume = gspca_resume,
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.reset_resume = gspca_resume,
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#endif
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};
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module_usb_driver(sd_driver);
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