mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 19:41:34 +07:00
bcb63314e2
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.
The patch has been created with the following command without manual edits:
git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
442 lines
10 KiB
C
442 lines
10 KiB
C
/*
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* spca1528 subdriver
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*
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* Copyright (C) 2010-2011 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 "spca1528"
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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("SPCA1528 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 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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/* (does not work correctly)
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{176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
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.bytesperline = 176,
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.sizeimage = 176 * 144 * 5 / 8 + 590,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.priv = 3},
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*/
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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 * 4 / 8 + 590,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.priv = 2},
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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 = 1},
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};
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/* read <len> bytes to gspca usb_buf */
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static void reg_r(struct gspca_dev *gspca_dev,
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u8 req,
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u16 index,
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int len)
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{
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#if USB_BUF_SZ < 64
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#error "USB buffer too small"
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#endif
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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_rcvctrlpipe(dev, 0),
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req,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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0x0000, /* value */
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index,
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gspca_dev->usb_buf, len,
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500);
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PDEBUG(D_USBI, "GET %02x 0000 %04x %02x", req, index,
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gspca_dev->usb_buf[0]);
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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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}
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}
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static void reg_w(struct gspca_dev *gspca_dev,
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u8 req,
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u16 value,
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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;
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PDEBUG(D_USBO, "SET %02x %04x %04x", req, value, index);
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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req,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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value, index,
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NULL, 0, 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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static void reg_wb(struct gspca_dev *gspca_dev,
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u8 req,
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u16 value,
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u16 index,
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u8 byte)
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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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PDEBUG(D_USBO, "SET %02x %04x %04x %02x", req, value, index, byte);
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gspca_dev->usb_buf[0] = byte;
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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req,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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value, index,
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gspca_dev->usb_buf, 1, 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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static void wait_status_0(struct gspca_dev *gspca_dev)
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{
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int i, w;
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i = 16;
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w = 0;
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do {
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reg_r(gspca_dev, 0x21, 0x0000, 1);
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if (gspca_dev->usb_buf[0] == 0)
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return;
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w += 15;
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msleep(w);
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} while (--i > 0);
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PERR("wait_status_0 timeout");
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gspca_dev->usb_err = -ETIME;
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}
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static void wait_status_1(struct gspca_dev *gspca_dev)
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{
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int i;
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i = 10;
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do {
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reg_r(gspca_dev, 0x21, 0x0001, 1);
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msleep(10);
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if (gspca_dev->usb_buf[0] == 1) {
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reg_wb(gspca_dev, 0x21, 0x0000, 0x0001, 0x00);
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reg_r(gspca_dev, 0x21, 0x0001, 1);
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return;
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}
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} while (--i > 0);
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PERR("wait_status_1 timeout");
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gspca_dev->usb_err = -ETIME;
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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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reg_wb(gspca_dev, 0xc0, 0x0000, 0x00c0, val);
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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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reg_wb(gspca_dev, 0xc1, 0x0000, 0x00c1, val);
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}
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static void sethue(struct gspca_dev *gspca_dev, s32 val)
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{
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reg_wb(gspca_dev, 0xc2, 0x0000, 0x0000, val);
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}
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static void setcolor(struct gspca_dev *gspca_dev, s32 val)
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{
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reg_wb(gspca_dev, 0xc3, 0x0000, 0x00c3, val);
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}
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static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
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{
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reg_wb(gspca_dev, 0xc4, 0x0000, 0x00c4, 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 = vga_mode;
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gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
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gspca_dev->cam.npkt = 128; /* number of packets per ISOC message */
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/*fixme: 256 in ms-win traces*/
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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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reg_w(gspca_dev, 0x00, 0x0001, 0x2067);
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reg_w(gspca_dev, 0x00, 0x00d0, 0x206b);
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reg_w(gspca_dev, 0x00, 0x0000, 0x206c);
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reg_w(gspca_dev, 0x00, 0x0001, 0x2069);
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msleep(8);
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reg_w(gspca_dev, 0x00, 0x00c0, 0x206b);
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reg_w(gspca_dev, 0x00, 0x0000, 0x206c);
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reg_w(gspca_dev, 0x00, 0x0001, 0x2069);
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reg_r(gspca_dev, 0x20, 0x0000, 1);
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reg_r(gspca_dev, 0x20, 0x0000, 5);
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reg_r(gspca_dev, 0x23, 0x0000, 64);
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PDEBUG(D_PROBE, "%s%s", &gspca_dev->usb_buf[0x1c],
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&gspca_dev->usb_buf[0x30]);
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reg_r(gspca_dev, 0x23, 0x0001, 64);
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return gspca_dev->usb_err;
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}
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/* function called at start time before URB creation */
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static int sd_isoc_init(struct gspca_dev *gspca_dev)
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{
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u8 mode;
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reg_r(gspca_dev, 0x00, 0x2520, 1);
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wait_status_0(gspca_dev);
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reg_w(gspca_dev, 0xc5, 0x0003, 0x0000);
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wait_status_1(gspca_dev);
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wait_status_0(gspca_dev);
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mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
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reg_wb(gspca_dev, 0x25, 0x0000, 0x0004, mode);
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reg_r(gspca_dev, 0x25, 0x0004, 1);
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reg_wb(gspca_dev, 0x27, 0x0000, 0x0000, 0x06); /* 420 */
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reg_r(gspca_dev, 0x27, 0x0000, 1);
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/* not useful..
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gspca_dev->alt = 4; * use alternate setting 3 */
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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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/* initialize 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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/* the JPEG quality shall be 85% */
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jpeg_set_qual(sd->jpeg_hdr, 85);
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reg_r(gspca_dev, 0x00, 0x2520, 1);
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msleep(8);
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/* start the capture */
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wait_status_0(gspca_dev);
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reg_w(gspca_dev, 0x31, 0x0000, 0x0004); /* start request */
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wait_status_1(gspca_dev);
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wait_status_0(gspca_dev);
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msleep(200);
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sd->pkt_seq = 0;
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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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/* stop the capture */
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wait_status_0(gspca_dev);
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reg_w(gspca_dev, 0x31, 0x0000, 0x0000); /* stop request */
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wait_status_1(gspca_dev);
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wait_status_0(gspca_dev);
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}
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/* move a packet adding 0x00 after 0xff */
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static void add_packet(struct gspca_dev *gspca_dev,
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u8 *data,
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int len)
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{
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int i;
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i = 0;
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do {
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if (data[i] == 0xff) {
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gspca_frame_add(gspca_dev, INTER_PACKET,
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data, i + 1);
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len -= i;
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data += i;
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*data = 0x00;
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i = 0;
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}
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} while (++i < len);
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gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
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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 const u8 ffd9[] = {0xff, 0xd9};
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/* image packets start with:
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* 02 8n
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* with <n> bit:
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* 0x01: even (0) / odd (1) image
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* 0x02: end of image when set
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*/
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if (len < 3)
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return; /* empty packet */
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if (*data == 0x02) {
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if (data[1] & 0x02) {
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sd->pkt_seq = !(data[1] & 1);
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add_packet(gspca_dev, data + 2, len - 2);
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gspca_frame_add(gspca_dev, LAST_PACKET,
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ffd9, 2);
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return;
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}
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if ((data[1] & 1) != sd->pkt_seq)
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goto err;
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if (gspca_dev->last_packet_type == LAST_PACKET)
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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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add_packet(gspca_dev, data + 2, len - 2);
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return;
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}
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err:
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gspca_dev->last_packet_type = DISCARD_PACKET;
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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_HUE:
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sethue(gspca_dev, ctrl->val);
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break;
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case V4L2_CID_SATURATION:
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setcolor(gspca_dev, ctrl->val);
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break;
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case V4L2_CID_SHARPNESS:
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setsharpness(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, 5);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_CONTRAST, 0, 8, 1, 1);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_HUE, 0, 255, 1, 0);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_SATURATION, 0, 8, 1, 1);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_SHARPNESS, 0, 255, 1, 0);
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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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.isoc_init = sd_isoc_init,
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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(0x04fc, 0x1528)},
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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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/* the video interface for isochronous transfer is 1 */
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if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
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return -ENODEV;
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return gspca_dev_probe2(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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