From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/media/usb/gspca/stk014.c | 434 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 434 insertions(+) create mode 100644 drivers/media/usb/gspca/stk014.c (limited to 'drivers/media/usb/gspca/stk014.c') diff --git a/drivers/media/usb/gspca/stk014.c b/drivers/media/usb/gspca/stk014.c new file mode 100644 index 0000000000..aa9e921e7c --- /dev/null +++ b/drivers/media/usb/gspca/stk014.c @@ -0,0 +1,434 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Syntek DV4000 (STK014) subdriver + * + * Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr) + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#define MODULE_NAME "stk014" + +#include "gspca.h" +#include "jpeg.h" + +MODULE_AUTHOR("Jean-Francois Moine "); +MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver"); +MODULE_LICENSE("GPL"); + +#define QUALITY 50 + +/* specific webcam descriptor */ +struct sd { + struct gspca_dev gspca_dev; /* !! must be the first item */ + u8 jpeg_hdr[JPEG_HDR_SZ]; +}; + +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 = 1}, + {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, + .bytesperline = 640, + .sizeimage = 640 * 480 * 3 / 8 + 590, + .colorspace = V4L2_COLORSPACE_JPEG, + .priv = 0}, +}; + +/* -- read a register -- */ +static u8 reg_r(struct gspca_dev *gspca_dev, + __u16 index) +{ + struct usb_device *dev = gspca_dev->dev; + int ret; + + if (gspca_dev->usb_err < 0) + return 0; + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + 0x00, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x00, + index, + gspca_dev->usb_buf, 1, + 500); + if (ret < 0) { + pr_err("reg_r err %d\n", ret); + gspca_dev->usb_err = ret; + return 0; + } + return gspca_dev->usb_buf[0]; +} + +/* -- write a register -- */ +static void reg_w(struct gspca_dev *gspca_dev, + __u16 index, __u16 value) +{ + struct usb_device *dev = gspca_dev->dev; + int ret; + + if (gspca_dev->usb_err < 0) + return; + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + 0x01, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, + index, + NULL, + 0, + 500); + if (ret < 0) { + pr_err("reg_w err %d\n", ret); + gspca_dev->usb_err = ret; + } +} + +/* -- get a bulk value (4 bytes) -- */ +static void rcv_val(struct gspca_dev *gspca_dev, + int ads) +{ + struct usb_device *dev = gspca_dev->dev; + int alen, ret; + + reg_w(gspca_dev, 0x634, (ads >> 16) & 0xff); + reg_w(gspca_dev, 0x635, (ads >> 8) & 0xff); + reg_w(gspca_dev, 0x636, ads & 0xff); + reg_w(gspca_dev, 0x637, 0); + reg_w(gspca_dev, 0x638, 4); /* len & 0xff */ + reg_w(gspca_dev, 0x639, 0); /* len >> 8 */ + reg_w(gspca_dev, 0x63a, 0); + reg_w(gspca_dev, 0x63b, 0); + reg_w(gspca_dev, 0x630, 5); + if (gspca_dev->usb_err < 0) + return; + ret = usb_bulk_msg(dev, + usb_rcvbulkpipe(dev, 0x05), + gspca_dev->usb_buf, + 4, /* length */ + &alen, + 500); /* timeout in milliseconds */ + if (ret < 0) { + pr_err("rcv_val err %d\n", ret); + gspca_dev->usb_err = ret; + } +} + +/* -- send a bulk value -- */ +static void snd_val(struct gspca_dev *gspca_dev, + int ads, + unsigned int val) +{ + struct usb_device *dev = gspca_dev->dev; + int alen, ret; + __u8 seq = 0; + + if (ads == 0x003f08) { + reg_r(gspca_dev, 0x0704); + seq = reg_r(gspca_dev, 0x0705); + reg_r(gspca_dev, 0x0650); + reg_w(gspca_dev, 0x654, seq); + } else { + reg_w(gspca_dev, 0x654, (ads >> 16) & 0xff); + } + reg_w(gspca_dev, 0x655, (ads >> 8) & 0xff); + reg_w(gspca_dev, 0x656, ads & 0xff); + reg_w(gspca_dev, 0x657, 0); + reg_w(gspca_dev, 0x658, 0x04); /* size */ + reg_w(gspca_dev, 0x659, 0); + reg_w(gspca_dev, 0x65a, 0); + reg_w(gspca_dev, 0x65b, 0); + reg_w(gspca_dev, 0x650, 5); + if (gspca_dev->usb_err < 0) + return; + gspca_dev->usb_buf[0] = val >> 24; + gspca_dev->usb_buf[1] = val >> 16; + gspca_dev->usb_buf[2] = val >> 8; + gspca_dev->usb_buf[3] = val; + ret = usb_bulk_msg(dev, + usb_sndbulkpipe(dev, 6), + gspca_dev->usb_buf, + 4, + &alen, + 500); /* timeout in milliseconds */ + if (ret < 0) { + pr_err("snd_val err %d\n", ret); + gspca_dev->usb_err = ret; + } else { + if (ads == 0x003f08) { + seq += 4; + seq &= 0x3f; + reg_w(gspca_dev, 0x705, seq); + } + } +} + +/* set a camera parameter */ +static void set_par(struct gspca_dev *gspca_dev, + int parval) +{ + snd_val(gspca_dev, 0x003f08, parval); +} + +static void setbrightness(struct gspca_dev *gspca_dev, s32 val) +{ + int parval; + + parval = 0x06000000 /* whiteness */ + + (val << 16); + set_par(gspca_dev, parval); +} + +static void setcontrast(struct gspca_dev *gspca_dev, s32 val) +{ + int parval; + + parval = 0x07000000 /* contrast */ + + (val << 16); + set_par(gspca_dev, parval); +} + +static void setcolors(struct gspca_dev *gspca_dev, s32 val) +{ + int parval; + + parval = 0x08000000 /* saturation */ + + (val << 16); + set_par(gspca_dev, parval); +} + +static void setlightfreq(struct gspca_dev *gspca_dev, s32 val) +{ + set_par(gspca_dev, val == 1 + ? 0x33640000 /* 50 Hz */ + : 0x33780000); /* 60 Hz */ +} + +/* this function is called at probe time */ +static int sd_config(struct gspca_dev *gspca_dev, + const struct usb_device_id *id) +{ + gspca_dev->cam.cam_mode = vga_mode; + gspca_dev->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) +{ + u8 ret; + + /* check if the device responds */ + usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1); + ret = reg_r(gspca_dev, 0x0740); + if (gspca_dev->usb_err >= 0) { + if (ret != 0xff) { + pr_err("init reg: 0x%02x\n", ret); + gspca_dev->usb_err = -EIO; + } + } + return gspca_dev->usb_err; +} + +/* -- start the camera -- */ +static int sd_start(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int ret, value; + + /* create the JPEG header */ + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, + 0x22); /* JPEG 411 */ + jpeg_set_qual(sd->jpeg_hdr, QUALITY); + + /* work on alternate 1 */ + usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1); + + set_par(gspca_dev, 0x10000000); + set_par(gspca_dev, 0x00000000); + set_par(gspca_dev, 0x8002e001); + set_par(gspca_dev, 0x14000000); + if (gspca_dev->pixfmt.width > 320) + value = 0x8002e001; /* 640x480 */ + else + value = 0x4001f000; /* 320x240 */ + set_par(gspca_dev, value); + ret = usb_set_interface(gspca_dev->dev, + gspca_dev->iface, + gspca_dev->alt); + if (ret < 0) { + pr_err("set intf %d %d failed\n", + gspca_dev->iface, gspca_dev->alt); + gspca_dev->usb_err = ret; + goto out; + } + reg_r(gspca_dev, 0x0630); + rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */ + reg_r(gspca_dev, 0x0650); + snd_val(gspca_dev, 0x000020, 0xffffffff); + reg_w(gspca_dev, 0x0620, 0); + reg_w(gspca_dev, 0x0630, 0); + reg_w(gspca_dev, 0x0640, 0); + reg_w(gspca_dev, 0x0650, 0); + reg_w(gspca_dev, 0x0660, 0); + set_par(gspca_dev, 0x09800000); /* Red ? */ + set_par(gspca_dev, 0x0a800000); /* Green ? */ + set_par(gspca_dev, 0x0b800000); /* Blue ? */ + set_par(gspca_dev, 0x0d030000); /* Gamma ? */ + + /* start the video flow */ + set_par(gspca_dev, 0x01000000); + set_par(gspca_dev, 0x01000000); + if (gspca_dev->usb_err >= 0) + gspca_dbg(gspca_dev, D_STREAM, "camera started alt: 0x%02x\n", + gspca_dev->alt); +out: + return gspca_dev->usb_err; +} + +static void sd_stopN(struct gspca_dev *gspca_dev) +{ + struct usb_device *dev = gspca_dev->dev; + + set_par(gspca_dev, 0x02000000); + set_par(gspca_dev, 0x02000000); + usb_set_interface(dev, gspca_dev->iface, 1); + reg_r(gspca_dev, 0x0630); + rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */ + reg_r(gspca_dev, 0x0650); + snd_val(gspca_dev, 0x000020, 0xffffffff); + reg_w(gspca_dev, 0x0620, 0); + reg_w(gspca_dev, 0x0630, 0); + reg_w(gspca_dev, 0x0640, 0); + reg_w(gspca_dev, 0x0650, 0); + reg_w(gspca_dev, 0x0660, 0); + gspca_dbg(gspca_dev, D_STREAM, "camera stopped\n"); +} + +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; + static unsigned char ffd9[] = {0xff, 0xd9}; + + /* a frame starts with: + * - 0xff 0xfe + * - 0x08 0x00 - length (little endian ?!) + * - 4 bytes = size of whole frame (BE - including header) + * - 0x00 0x0c + * - 0xff 0xd8 + * - .. JPEG image with escape sequences (ff 00) + * (without ending - ff d9) + */ + if (data[0] == 0xff && data[1] == 0xfe) { + gspca_frame_add(gspca_dev, LAST_PACKET, + ffd9, 2); + + /* put the JPEG 411 header */ + gspca_frame_add(gspca_dev, FIRST_PACKET, + sd->jpeg_hdr, JPEG_HDR_SZ); + + /* beginning of the frame */ +#define STKHDRSZ 12 + data += STKHDRSZ; + len -= STKHDRSZ; + } + gspca_frame_add(gspca_dev, INTER_PACKET, data, len); +} + +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_BRIGHTNESS: + setbrightness(gspca_dev, ctrl->val); + break; + case V4L2_CID_CONTRAST: + setcontrast(gspca_dev, ctrl->val); + break; + case V4L2_CID_SATURATION: + setcolors(gspca_dev, ctrl->val); + break; + case V4L2_CID_POWER_LINE_FREQUENCY: + setlightfreq(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 v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; + + gspca_dev->vdev.ctrl_handler = hdl; + v4l2_ctrl_handler_init(hdl, 4); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 127); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 127); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, 127); + v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops, + V4L2_CID_POWER_LINE_FREQUENCY, + V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 1, + V4L2_CID_POWER_LINE_FREQUENCY_50HZ); + + 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, +}; + +/* -- module initialisation -- */ +static const struct usb_device_id device_table[] = { + {USB_DEVICE(0x05e1, 0x0893)}, + {} +}; +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); -- cgit v1.2.3