--- /dev/null
+/*
+ * ov534/ov772x gspca driver
+ * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
+ *
+ * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
+ * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
+ * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
+ *
+ * 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 MODULE_NAME "ov534"
+
+#include "gspca.h"
+
+#define OV534_REG_ADDRESS 0xf1 /* ? */
+#define OV534_REG_SUBADDR 0xf2
+#define OV534_REG_WRITE 0xf3
+#define OV534_REG_READ 0xf4
+#define OV534_REG_OPERATION 0xf5
+#define OV534_REG_STATUS 0xf6
+
+#define OV534_OP_WRITE_3 0x37
+#define OV534_OP_WRITE_2 0x33
+#define OV534_OP_READ_2 0xf9
+
+#define CTRL_TIMEOUT 500
+
+MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
+MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+/* global parameters */
+static int frame_rate;
+
+/* specific webcam descriptor */
+struct sd {
+ struct gspca_dev gspca_dev; /* !! must be the first item */
+ __u8 frame_rate;
+};
+
+/* V4L2 controls supported by the driver */
+static struct ctrl sd_ctrls[] = {
+};
+
+static struct v4l2_pix_format vga_mode[] = {
+ {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
+ .bytesperline = 640 * 2,
+ .sizeimage = 640 * 480 * 2,
+ .colorspace = V4L2_COLORSPACE_JPEG,
+ .priv = 0},
+};
+
+static void ov534_reg_write(struct usb_device *udev, u16 reg, u16 val)
+{
+ u16 data = val;
+ int ret;
+
+ PDEBUG(D_USBO, "reg=0x%04x, val=0%04x", reg, val);
+ ret = usb_control_msg(udev,
+ usb_sndctrlpipe(udev, 0),
+ 0x1,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0x0, reg, &data, 1, CTRL_TIMEOUT);
+ if (ret < 0)
+ PDEBUG(D_ERR, "write failed");
+}
+
+static u16 ov534_reg_read(struct usb_device *udev, u16 reg)
+{
+ u16 data;
+ int ret;
+
+ ret = usb_control_msg(udev,
+ usb_rcvctrlpipe(udev, 0),
+ 0x1,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0x0, reg, &data, 1, CTRL_TIMEOUT);
+ PDEBUG(D_USBI, "reg=0x%04x, data=0x%04x", reg, data);
+ if (ret < 0)
+ PDEBUG(D_ERR, "read failed");
+ return data;
+}
+
+static void ov534_reg_verify_write(struct usb_device *udev, u16 reg, u16 val)
+{
+ u16 data;
+
+ ov534_reg_write(udev, reg, val);
+ data = ov534_reg_read(udev, reg);
+ if (data != val) {
+ PDEBUG(D_ERR | D_USBO,
+ "unexpected result from read: 0x%04x != 0x%04x", val,
+ data);
+ }
+}
+
+/* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
+ * (direction and output)? */
+static void ov534_set_led(struct usb_device *udev, int status)
+{
+ u16 data;
+
+ PDEBUG(D_CONF, "led status: %d", status);
+
+ data = ov534_reg_read(udev, 0x21);
+ data |= 0x80;
+ ov534_reg_write(udev, 0x21, data);
+
+ data = ov534_reg_read(udev, 0x23);
+ if (status)
+ data |= 0x80;
+ else
+ data &= ~(0x80);
+
+ ov534_reg_write(udev, 0x23, data);
+}
+
+static int sccb_check_status(struct usb_device *udev)
+{
+ u16 data;
+ int i;
+
+ for (i = 0; i < 5; i++) {
+ data = ov534_reg_read(udev, OV534_REG_STATUS);
+
+ switch (data & 0xFF) {
+ case 0x00:
+ return 1;
+ case 0x04:
+ return 0;
+ case 0x03:
+ break;
+ default:
+ PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5\n",
+ data, i + 1);
+ }
+ }
+ return 0;
+}
+
+static void sccb_reg_write(struct usb_device *udev, u16 reg, u16 val)
+{
+ PDEBUG(D_USBO, "reg: 0x%04x, val: 0x%04x", reg, val);
+ ov534_reg_write(udev, OV534_REG_SUBADDR, reg);
+ ov534_reg_write(udev, OV534_REG_WRITE, val);
+ ov534_reg_write(udev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
+
+ if (!sccb_check_status(udev))
+ PDEBUG(D_ERR, "sccb_reg_write failed");
+}
+
+/* setup method */
+static void ov534_setup(struct usb_device *udev)
+{
+ ov534_reg_verify_write(udev, 0xe7, 0x3a);
+
+ ov534_reg_write(udev, OV534_REG_ADDRESS, 0x60);
+ ov534_reg_write(udev, OV534_REG_ADDRESS, 0x60);
+ ov534_reg_write(udev, OV534_REG_ADDRESS, 0x60);
+ ov534_reg_write(udev, OV534_REG_ADDRESS, 0x42);
+
+ ov534_reg_verify_write(udev, 0xc2, 0x0c);
+ ov534_reg_verify_write(udev, 0x88, 0xf8);
+ ov534_reg_verify_write(udev, 0xc3, 0x69);
+ ov534_reg_verify_write(udev, 0x89, 0xff);
+ ov534_reg_verify_write(udev, 0x76, 0x03);
+ ov534_reg_verify_write(udev, 0x92, 0x01);
+ ov534_reg_verify_write(udev, 0x93, 0x18);
+ ov534_reg_verify_write(udev, 0x94, 0x10);
+ ov534_reg_verify_write(udev, 0x95, 0x10);
+ ov534_reg_verify_write(udev, 0xe2, 0x00);
+ ov534_reg_verify_write(udev, 0xe7, 0x3e);
+
+ ov534_reg_write(udev, 0x1c, 0x0a);
+ ov534_reg_write(udev, 0x1d, 0x22);
+ ov534_reg_write(udev, 0x1d, 0x06);
+
+ ov534_reg_verify_write(udev, 0x96, 0x00);
+
+ ov534_reg_write(udev, 0x97, 0x20);
+ ov534_reg_write(udev, 0x97, 0x20);
+ ov534_reg_write(udev, 0x97, 0x20);
+ ov534_reg_write(udev, 0x97, 0x0a);
+ ov534_reg_write(udev, 0x97, 0x3f);
+ ov534_reg_write(udev, 0x97, 0x4a);
+ ov534_reg_write(udev, 0x97, 0x20);
+ ov534_reg_write(udev, 0x97, 0x15);
+ ov534_reg_write(udev, 0x97, 0x0b);
+
+ ov534_reg_verify_write(udev, 0x8e, 0x40);
+ ov534_reg_verify_write(udev, 0x1f, 0x81);
+ ov534_reg_verify_write(udev, 0x34, 0x05);
+ ov534_reg_verify_write(udev, 0xe3, 0x04);
+ ov534_reg_verify_write(udev, 0x88, 0x00);
+ ov534_reg_verify_write(udev, 0x89, 0x00);
+ ov534_reg_verify_write(udev, 0x76, 0x00);
+ ov534_reg_verify_write(udev, 0xe7, 0x2e);
+ ov534_reg_verify_write(udev, 0x31, 0xf9);
+ ov534_reg_verify_write(udev, 0x25, 0x42);
+ ov534_reg_verify_write(udev, 0x21, 0xf0);
+
+ ov534_reg_write(udev, 0x1c, 0x00);
+ ov534_reg_write(udev, 0x1d, 0x40);
+ ov534_reg_write(udev, 0x1d, 0x02);
+ ov534_reg_write(udev, 0x1d, 0x00);
+ ov534_reg_write(udev, 0x1d, 0x02);
+ ov534_reg_write(udev, 0x1d, 0x57);
+ ov534_reg_write(udev, 0x1d, 0xff);
+
+ ov534_reg_verify_write(udev, 0x8d, 0x1c);
+ ov534_reg_verify_write(udev, 0x8e, 0x80);
+ ov534_reg_verify_write(udev, 0xe5, 0x04);
+
+ ov534_set_led(udev, 1);
+
+ sccb_reg_write(udev, 0x12, 0x80);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x11, 0x01);
+
+ ov534_set_led(udev, 0);
+
+ sccb_reg_write(udev, 0x3d, 0x03);
+ sccb_reg_write(udev, 0x17, 0x26);
+ sccb_reg_write(udev, 0x18, 0xa0);
+ sccb_reg_write(udev, 0x19, 0x07);
+ sccb_reg_write(udev, 0x1a, 0xf0);
+ sccb_reg_write(udev, 0x32, 0x00);
+ sccb_reg_write(udev, 0x29, 0xa0);
+ sccb_reg_write(udev, 0x2c, 0xf0);
+ sccb_reg_write(udev, 0x65, 0x20);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x42, 0x7f);
+ sccb_reg_write(udev, 0x63, 0xe0);
+ sccb_reg_write(udev, 0x64, 0xff);
+ sccb_reg_write(udev, 0x66, 0x00);
+ sccb_reg_write(udev, 0x13, 0xf0);
+ sccb_reg_write(udev, 0x0d, 0x41);
+ sccb_reg_write(udev, 0x0f, 0xc5);
+ sccb_reg_write(udev, 0x14, 0x11);
+
+ ov534_set_led(udev, 1);
+
+ sccb_reg_write(udev, 0x22, 0x7f);
+ sccb_reg_write(udev, 0x23, 0x03);
+ sccb_reg_write(udev, 0x24, 0x40);
+ sccb_reg_write(udev, 0x25, 0x30);
+ sccb_reg_write(udev, 0x26, 0xa1);
+ sccb_reg_write(udev, 0x2a, 0x00);
+ sccb_reg_write(udev, 0x2b, 0x00);
+ sccb_reg_write(udev, 0x6b, 0xaa);
+ sccb_reg_write(udev, 0x13, 0xff);
+
+ ov534_set_led(udev, 0);
+
+ sccb_reg_write(udev, 0x90, 0x05);
+ sccb_reg_write(udev, 0x91, 0x01);
+ sccb_reg_write(udev, 0x92, 0x03);
+ sccb_reg_write(udev, 0x93, 0x00);
+ sccb_reg_write(udev, 0x94, 0x60);
+ sccb_reg_write(udev, 0x95, 0x3c);
+ sccb_reg_write(udev, 0x96, 0x24);
+ sccb_reg_write(udev, 0x97, 0x1e);
+ sccb_reg_write(udev, 0x98, 0x62);
+ sccb_reg_write(udev, 0x99, 0x80);
+ sccb_reg_write(udev, 0x9a, 0x1e);
+ sccb_reg_write(udev, 0x9b, 0x08);
+ sccb_reg_write(udev, 0x9c, 0x20);
+ sccb_reg_write(udev, 0x9e, 0x81);
+
+ ov534_set_led(udev, 1);
+
+ sccb_reg_write(udev, 0xa6, 0x04);
+ sccb_reg_write(udev, 0x7e, 0x0c);
+ sccb_reg_write(udev, 0x7f, 0x16);
+ sccb_reg_write(udev, 0x80, 0x2a);
+ sccb_reg_write(udev, 0x81, 0x4e);
+ sccb_reg_write(udev, 0x82, 0x61);
+ sccb_reg_write(udev, 0x83, 0x6f);
+ sccb_reg_write(udev, 0x84, 0x7b);
+ sccb_reg_write(udev, 0x85, 0x86);
+ sccb_reg_write(udev, 0x86, 0x8e);
+ sccb_reg_write(udev, 0x87, 0x97);
+ sccb_reg_write(udev, 0x88, 0xa4);
+ sccb_reg_write(udev, 0x89, 0xaf);
+ sccb_reg_write(udev, 0x8a, 0xc5);
+ sccb_reg_write(udev, 0x8b, 0xd7);
+ sccb_reg_write(udev, 0x8c, 0xe8);
+ sccb_reg_write(udev, 0x8d, 0x20);
+
+ sccb_reg_write(udev, 0x0c, 0x90);
+
+ ov534_reg_verify_write(udev, 0xc0, 0x50);
+ ov534_reg_verify_write(udev, 0xc1, 0x3c);
+ ov534_reg_verify_write(udev, 0xc2, 0x0c);
+
+ ov534_set_led(udev, 1);
+
+ sccb_reg_write(udev, 0x2b, 0x00);
+ sccb_reg_write(udev, 0x22, 0x7f);
+ sccb_reg_write(udev, 0x23, 0x03);
+ sccb_reg_write(udev, 0x11, 0x01);
+ sccb_reg_write(udev, 0x0c, 0xd0);
+ sccb_reg_write(udev, 0x64, 0xff);
+ sccb_reg_write(udev, 0x0d, 0x41);
+
+ sccb_reg_write(udev, 0x14, 0x41);
+ sccb_reg_write(udev, 0x0e, 0xcd);
+ sccb_reg_write(udev, 0xac, 0xbf);
+ sccb_reg_write(udev, 0x8e, 0x00);
+ sccb_reg_write(udev, 0x0c, 0xd0);
+
+ ov534_reg_write(udev, 0xe0, 0x09);
+ ov534_set_led(udev, 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->epaddr = 0x01;
+ cam->cam_mode = vga_mode;
+ cam->nmodes = ARRAY_SIZE(vga_mode);
+
+ cam->bulk_size = vga_mode[0].sizeimage;
+ cam->bulk_nurbs = 2;
+
+ PDEBUG(D_PROBE, "bulk_size = %d", cam->bulk_size);
+
+ return 0;
+}
+
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *)gspca_dev;
+ ov534_setup(gspca_dev->dev);
+
+ if (frame_rate > 0)
+ sd->frame_rate = frame_rate;
+
+ PDEBUG(D_PROBE, "frame_rate = %d", sd->frame_rate);
+
+ switch (sd->frame_rate) {
+ case 50:
+ sccb_reg_write(gspca_dev->dev, 0x11, 0x01);
+ sccb_check_status(gspca_dev->dev);
+ sccb_reg_write(gspca_dev->dev, 0x0d, 0x41);
+ sccb_check_status(gspca_dev->dev);
+ ov534_reg_verify_write(gspca_dev->dev, 0xe5, 0x02);
+ break;
+ case 40:
+ sccb_reg_write(gspca_dev->dev, 0x11, 0x02);
+ sccb_check_status(gspca_dev->dev);
+ sccb_reg_write(gspca_dev->dev, 0x0d, 0xc1);
+ sccb_check_status(gspca_dev->dev);
+ ov534_reg_verify_write(gspca_dev->dev, 0xe5, 0x04);
+ break;
+ case 30:
+ default:
+ sccb_reg_write(gspca_dev->dev, 0x11, 0x04);
+ sccb_check_status(gspca_dev->dev);
+ sccb_reg_write(gspca_dev->dev, 0x0d, 0x81);
+ sccb_check_status(gspca_dev->dev);
+ ov534_reg_verify_write(gspca_dev->dev, 0xe5, 0x02);
+ break;
+ case 15:
+ sccb_reg_write(gspca_dev->dev, 0x11, 0x03);
+ sccb_check_status(gspca_dev->dev);
+ sccb_reg_write(gspca_dev->dev, 0x0d, 0x41);
+ sccb_check_status(gspca_dev->dev);
+ ov534_reg_verify_write(gspca_dev->dev, 0xe5, 0x04);
+ break;
+ };
+
+ return 0;
+}
+
+static int sd_start(struct gspca_dev *gspca_dev)
+{
+ PDEBUG(D_PROBE, "width = %d, height = %d",
+ gspca_dev->width, gspca_dev->height);
+
+ gspca_dev->cam.bulk_size = gspca_dev->width * gspca_dev->height * 2;
+
+ /* start streaming data */
+ ov534_set_led(gspca_dev->dev, 1);
+ ov534_reg_write(gspca_dev->dev, 0xe0, 0x00);
+
+ return 0;
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+ /* stop streaming data */
+ ov534_reg_write(gspca_dev->dev, 0xe0, 0x09);
+ ov534_set_led(gspca_dev->dev, 0);
+}
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct gspca_frame *frame,
+ __u8 *data, int len)
+{
+ /*
+ * The current camera setup doesn't stream the last pixel, so we set it
+ * to a dummy value
+ */
+ __u8 last_pixel[4] = { 0, 0, 0, 0 };
+ int framesize = gspca_dev->cam.bulk_size;
+
+ if (len == framesize - 4) {
+ frame =
+ gspca_frame_add(gspca_dev, FIRST_PACKET, frame, data, len);
+ frame =
+ gspca_frame_add(gspca_dev, LAST_PACKET, frame, last_pixel,
+ 4);
+ } else
+ PDEBUG(D_PACK, "packet len = %d, framesize = %d", len,
+ framesize);
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+ .name = MODULE_NAME,
+ .ctrls = sd_ctrls,
+ .nctrls = ARRAY_SIZE(sd_ctrls),
+ .config = sd_config,
+ .init = sd_init,
+ .start = sd_start,
+ .stopN = sd_stopN,
+ .pkt_scan = sd_pkt_scan,
+};
+
+/* -- module initialisation -- */
+static const __devinitdata struct usb_device_id device_table[] = {
+ {USB_DEVICE(0x06f8, 0x3002)}, /* Hercules Blog Webcam */
+ {USB_DEVICE(0x06f8, 0x3003)}, /* Hercules Dualpix HD Weblog */
+ {USB_DEVICE(0x1415, 0x2000)}, /* Sony HD Eye for PS3 (SLEH 00201) */
+ {}
+};
+
+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,
+#endif
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+ if (usb_register(&sd_driver) < 0)
+ return -1;
+ PDEBUG(D_PROBE, "registered");
+ return 0;
+}
+
+static void __exit sd_mod_exit(void)
+{
+ usb_deregister(&sd_driver);
+ PDEBUG(D_PROBE, "deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
+
+module_param(frame_rate, int, 0644);
+MODULE_PARM_DESC(frame_rate, "Frame rate (15, 30, 40, 50)");
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff