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path: root/drivers/media/usb/gspca/mars.c
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Diffstat (limited to 'drivers/media/usb/gspca/mars.c')
-rw-r--r--drivers/media/usb/gspca/mars.c440
1 files changed, 440 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/mars.c b/drivers/media/usb/gspca/mars.c
new file mode 100644
index 00000000000..779a8785f42
--- /dev/null
+++ b/drivers/media/usb/gspca/mars.c
@@ -0,0 +1,440 @@
+/*
+ * Mars-Semi MR97311A library
+ * Copyright (C) 2005 <bradlch@hotmail.com>
+ *
+ * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
+ *
+ * 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 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) {
+ PDEBUG(D_PACK, "sof offset: %d len: %d",
+ 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);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 01:51:34 +0000