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linux/drivers/media/usb/gspca/mars.c
Thomas Gleixner fd9871f70c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 24 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 50 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.917228456@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:52:39 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Mars-Semi MR97311A library
* Copyright (C) 2005 <bradlch@hotmail.com>
*
* V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#define MODULE_NAME "mars"
#include "gspca.h"
#include "jpeg.h"
MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
MODULE_LICENSE("GPL");
#define QUALITY 50
/* specific webcam descriptor */
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
struct v4l2_ctrl *brightness;
struct v4l2_ctrl *saturation;
struct v4l2_ctrl *sharpness;
struct v4l2_ctrl *gamma;
struct { /* illuminator control cluster */
struct v4l2_ctrl *illum_top;
struct v4l2_ctrl *illum_bottom;
};
u8 jpeg_hdr[JPEG_HDR_SZ];
};
/* V4L2 controls supported by the driver */
static void setbrightness(struct gspca_dev *gspca_dev, s32 val);
static void setcolors(struct gspca_dev *gspca_dev, s32 val);
static void setgamma(struct gspca_dev *gspca_dev, s32 val);
static void setsharpness(struct gspca_dev *gspca_dev, s32 val);
static const struct v4l2_pix_format vga_mode[] = {
{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 320,
.sizeimage = 320 * 240 * 3 / 8 + 590,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 2},
{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 640,
.sizeimage = 640 * 480 * 3 / 8 + 590,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 1},
};
static const __u8 mi_data[0x20] = {
/* 01 02 03 04 05 06 07 08 */
0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
/* 09 0a 0b 0c 0d 0e 0f 10 */
0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
/* 11 12 13 14 15 16 17 18 */
0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
/* 19 1a 1b 1c 1d 1e 1f 20 */
0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
};
/* write <len> bytes from gspca_dev->usb_buf */
static void reg_w(struct gspca_dev *gspca_dev,
int len)
{
int alen, ret;
if (gspca_dev->usb_err < 0)
return;
ret = usb_bulk_msg(gspca_dev->dev,
usb_sndbulkpipe(gspca_dev->dev, 4),
gspca_dev->usb_buf,
len,
&alen,
500); /* timeout in milliseconds */
if (ret < 0) {
pr_err("reg write [%02x] error %d\n",
gspca_dev->usb_buf[0], ret);
gspca_dev->usb_err = ret;
}
}
static void mi_w(struct gspca_dev *gspca_dev,
u8 addr,
u8 value)
{
gspca_dev->usb_buf[0] = 0x1f;
gspca_dev->usb_buf[1] = 0; /* control byte */
gspca_dev->usb_buf[2] = addr;
gspca_dev->usb_buf[3] = value;
reg_w(gspca_dev, 4);
}
static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
{
gspca_dev->usb_buf[0] = 0x61;
gspca_dev->usb_buf[1] = val;
reg_w(gspca_dev, 2);
}
static void setcolors(struct gspca_dev *gspca_dev, s32 val)
{
gspca_dev->usb_buf[0] = 0x5f;
gspca_dev->usb_buf[1] = val << 3;
gspca_dev->usb_buf[2] = ((val >> 2) & 0xf8) | 0x04;
reg_w(gspca_dev, 3);
}
static void setgamma(struct gspca_dev *gspca_dev, s32 val)
{
gspca_dev->usb_buf[0] = 0x06;
gspca_dev->usb_buf[1] = val * 0x40;
reg_w(gspca_dev, 2);
}
static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
{
gspca_dev->usb_buf[0] = 0x67;
gspca_dev->usb_buf[1] = val * 4 + 3;
reg_w(gspca_dev, 2);
}
static void setilluminators(struct gspca_dev *gspca_dev, bool top, bool bottom)
{
/* both are off if not streaming */
gspca_dev->usb_buf[0] = 0x22;
if (top)
gspca_dev->usb_buf[1] = 0x76;
else if (bottom)
gspca_dev->usb_buf[1] = 0x7a;
else
gspca_dev->usb_buf[1] = 0x7e;
reg_w(gspca_dev, 2);
}
static int mars_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct gspca_dev *gspca_dev =
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
struct sd *sd = (struct sd *)gspca_dev;
gspca_dev->usb_err = 0;
if (ctrl->id == V4L2_CID_ILLUMINATORS_1) {
/* only one can be on at a time */
if (ctrl->is_new && ctrl->val)
sd->illum_bottom->val = 0;
if (sd->illum_bottom->is_new && sd->illum_bottom->val)
sd->illum_top->val = 0;
}
if (!gspca_dev->streaming)
return 0;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
setbrightness(gspca_dev, ctrl->val);
break;
case V4L2_CID_SATURATION:
setcolors(gspca_dev, ctrl->val);
break;
case V4L2_CID_GAMMA:
setgamma(gspca_dev, ctrl->val);
break;
case V4L2_CID_ILLUMINATORS_1:
setilluminators(gspca_dev, sd->illum_top->val,
sd->illum_bottom->val);
break;
case V4L2_CID_SHARPNESS:
setsharpness(gspca_dev, ctrl->val);
break;
default:
return -EINVAL;
}
return gspca_dev->usb_err;
}
static const struct v4l2_ctrl_ops mars_ctrl_ops = {
.s_ctrl = mars_s_ctrl,
};
/* this function is called at probe time */
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, 6);
sd->brightness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0, 30, 1, 15);
sd->saturation = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
V4L2_CID_SATURATION, 0, 255, 1, 200);
sd->gamma = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
V4L2_CID_GAMMA, 0, 3, 1, 1);
sd->sharpness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
V4L2_CID_SHARPNESS, 0, 2, 1, 1);
sd->illum_top = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0);
sd->illum_top->flags |= V4L2_CTRL_FLAG_UPDATE;
sd->illum_bottom = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0);
sd->illum_bottom->flags |= V4L2_CTRL_FLAG_UPDATE;
if (hdl->error) {
pr_err("Could not initialize controls\n");
return hdl->error;
}
v4l2_ctrl_cluster(2, &sd->illum_top);
return 0;
}
/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id)
{
struct cam *cam;
cam = &gspca_dev->cam;
cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(vga_mode);
return 0;
}
/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
return 0;
}
static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 *data;
int i;
/* create the JPEG header */
jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
gspca_dev->pixfmt.width,
0x21); /* JPEG 422 */
jpeg_set_qual(sd->jpeg_hdr, QUALITY);
data = gspca_dev->usb_buf;
data[0] = 0x01; /* address */
data[1] = 0x01;
reg_w(gspca_dev, 2);
/*
Initialize the MR97113 chip register
*/
data[0] = 0x00; /* address */
data[1] = 0x0c | 0x01; /* reg 0 */
data[2] = 0x01; /* reg 1 */
data[3] = gspca_dev->pixfmt.width / 8; /* h_size , reg 2 */
data[4] = gspca_dev->pixfmt.height / 8; /* v_size , reg 3 */
data[5] = 0x30; /* reg 4, MI, PAS5101 :
* 0x30 for 24mhz , 0x28 for 12mhz */
data[6] = 0x02; /* reg 5, H start - was 0x04 */
data[7] = v4l2_ctrl_g_ctrl(sd->gamma) * 0x40; /* reg 0x06: gamma */
data[8] = 0x01; /* reg 7, V start - was 0x03 */
/* if (h_size == 320 ) */
/* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
/* else */
data[9] = 0x52; /* reg 8, 24MHz, no scale down */
/*jfm: from win trace*/
data[10] = 0x18;
reg_w(gspca_dev, 11);
data[0] = 0x23; /* address */
data[1] = 0x09; /* reg 35, append frame header */
reg_w(gspca_dev, 2);
data[0] = 0x3c; /* address */
/* if (gspca_dev->width == 1280) */
/* data[1] = 200; * reg 60, pc-cam frame size
* (unit: 4KB) 800KB */
/* else */
data[1] = 50; /* 50 reg 60, pc-cam frame size
* (unit: 4KB) 200KB */
reg_w(gspca_dev, 2);
/* auto dark-gain */
data[0] = 0x5e; /* address */
data[1] = 0; /* reg 94, Y Gain (auto) */
/*jfm: from win trace*/
/* reg 0x5f/0x60 (LE) = saturation */
/* h (60): xxxx x100
* l (5f): xxxx x000 */
data[2] = v4l2_ctrl_g_ctrl(sd->saturation) << 3;
data[3] = ((v4l2_ctrl_g_ctrl(sd->saturation) >> 2) & 0xf8) | 0x04;
data[4] = v4l2_ctrl_g_ctrl(sd->brightness); /* reg 0x61 = brightness */
data[5] = 0x00;
reg_w(gspca_dev, 6);
data[0] = 0x67;
/*jfm: from win trace*/
data[1] = v4l2_ctrl_g_ctrl(sd->sharpness) * 4 + 3;
data[2] = 0x14;
reg_w(gspca_dev, 3);
data[0] = 0x69;
data[1] = 0x2f;
data[2] = 0x28;
data[3] = 0x42;
reg_w(gspca_dev, 4);
data[0] = 0x63;
data[1] = 0x07;
reg_w(gspca_dev, 2);
/*jfm: win trace - many writes here to reg 0x64*/
/* initialize the MI sensor */
for (i = 0; i < sizeof mi_data; i++)
mi_w(gspca_dev, i + 1, mi_data[i]);
data[0] = 0x00;
data[1] = 0x4d; /* ISOC transferring enable... */
reg_w(gspca_dev, 2);
setilluminators(gspca_dev, v4l2_ctrl_g_ctrl(sd->illum_top),
v4l2_ctrl_g_ctrl(sd->illum_bottom));
return gspca_dev->usb_err;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (v4l2_ctrl_g_ctrl(sd->illum_top) ||
v4l2_ctrl_g_ctrl(sd->illum_bottom)) {
setilluminators(gspca_dev, false, false);
msleep(20);
}
gspca_dev->usb_buf[0] = 1;
gspca_dev->usb_buf[1] = 0;
reg_w(gspca_dev, 2);
}
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 p;
if (len < 6) {
/* gspca_dev->last_packet_type = DISCARD_PACKET; */
return;
}
for (p = 0; p < len - 6; p++) {
if (data[0 + p] == 0xff
&& data[1 + p] == 0xff
&& data[2 + p] == 0x00
&& data[3 + p] == 0xff
&& data[4 + p] == 0x96) {
if (data[5 + p] == 0x64
|| data[5 + p] == 0x65
|| data[5 + p] == 0x66
|| data[5 + p] == 0x67) {
gspca_dbg(gspca_dev, D_PACK, "sof offset: %d len: %d\n",
p, len);
gspca_frame_add(gspca_dev, LAST_PACKET,
data, p);
/* put the JPEG header */
gspca_frame_add(gspca_dev, FIRST_PACKET,
sd->jpeg_hdr, JPEG_HDR_SZ);
data += p + 16;
len -= p + 16;
break;
}
}
}
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
}
/* 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,
};
/* -- module initialisation -- */
static const struct usb_device_id device_table[] = {
{USB_DEVICE(0x093a, 0x050f)},
{}
};
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);
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