/*
* 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 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");
/* specific webcam descriptor */
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
char qindex;
};
/* V4L2 controls supported by the driver */
static struct ctrl sd_ctrls[] = {
};
static struct v4l2_pix_format vga_mode[] = {
{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 320,
.sizeimage = 320 * 240 * 3 / 8 + 589,
.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},
};
/* MI Register table //elvis */
enum {
REG_HW_MI_0,
REG_HW_MI_1,
REG_HW_MI_2,
REG_HW_MI_3,
REG_HW_MI_4,
REG_HW_MI_5,
REG_HW_MI_6,
REG_HW_MI_7,
REG_HW_MI_9 = 0x09,
REG_HW_MI_B = 0x0B,
REG_HW_MI_C,
REG_HW_MI_D,
REG_HW_MI_1E = 0x1E,
REG_HW_MI_20 = 0x20,
REG_HW_MI_2B = 0x2B,
REG_HW_MI_2C,
REG_HW_MI_2D,
REG_HW_MI_2E,
REG_HW_MI_35 = 0x35,
REG_HW_MI_5F = 0x5f,
REG_HW_MI_60,
REG_HW_MI_61,
REG_HW_MI_62,
REG_HW_MI_63,
REG_HW_MI_64,
REG_HW_MI_F1 = 0xf1,
ATTR_TOTAL_MI_REG = 0xf2
};
/* the bytes to write are in gspca_dev->usb_buf */
static int reg_w(struct gspca_dev *gspca_dev,
__u16 index, int len)
{
int rc;
rc = usb_control_msg(gspca_dev->dev,
usb_sndbulkpipe(gspca_dev->dev, 4),
0x12,
0xc8, /* ?? */
0, /* value */
index, gspca_dev->usb_buf, len, 500);
if (rc < 0)
PDEBUG(D_ERR, "reg write [%02x] error %d", index, rc);
return rc;
}
static void bulk_w(struct gspca_dev *gspca_dev,
__u16 *pch,
__u16 Address)
{
gspca_dev->usb_buf[0] = 0x1f;
gspca_dev->usb_buf[1] = 0; /* control byte */
gspca_dev->usb_buf[2] = Address;
gspca_dev->usb_buf[3] = *pch >> 8; /* high byte */
gspca_dev->usb_buf[4] = *pch; /* low byte */
reg_w(gspca_dev, Address, 5);
}
/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id)
{
struct sd *sd = (struct sd *) gspca_dev;
struct cam *cam;
cam = &gspca_dev->cam;
cam->epaddr = 0x01;
cam->cam_mode = vga_mode;
cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
sd->qindex = 1; /* set the quantization table */
return 0;
}
/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
return 0;
}
static void sd_start(struct gspca_dev *gspca_dev)
{
int err_code;
__u8 *data;
__u16 *MI_buf;
int h_size, v_size;
int intpipe;
PDEBUG(D_STREAM, "camera start, iface %d, alt 8", gspca_dev->iface);
if (usb_set_interface(gspca_dev->dev, gspca_dev->iface, 8) < 0) {
PDEBUG(D_ERR|D_STREAM, "Set packet size: set interface error");
return;
}
data = gspca_dev->usb_buf;
data[0] = 0x01; /* address */
data[1] = 0x01;
err_code = reg_w(gspca_dev, data[0], 2);
if (err_code < 0)
return;
/*
Initialize the MR97113 chip register
*/
data[0] = 0x00; /* address */
data[1] = 0x0c | 0x01; /* reg 0 */
data[2] = 0x01; /* reg 1 */
h_size = gspca_dev->width;
v_size = gspca_dev->height;
data[3] = h_size / 8; /* h_size , reg 2 */
data[4] = v_size / 8; /* v_size , reg 3 */
data[5] = 0x30; /* reg 4, MI, PAS5101 :
* 0x30 for 24mhz , 0x28 for 12mhz */
data[6] = 4; /* reg 5, H start */
data[7] = 0xc0; /* reg 6, gamma 1.5 */
data[8] = 3; /* reg 7, V start */
/* if (h_size == 320 ) */
/* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
/* else */
data[9] = 0x52; /* reg 8, 24MHz, no scale down */
data[10] = 0x5d; /* reg 9, I2C device address
* [for PAS5101 (0x40)] [for MI (0x5d)] */
err_code = reg_w(gspca_dev, data[0], 11);
if (err_code < 0)
return;
data[0] = 0x23; /* address */
data[1] = 0x09; /* reg 35, append frame header */
err_code = reg_w(gspca_dev, data[0], 2);
if (err_code < 0)
return;
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 */
err_code = reg_w(gspca_dev, data[0], 2);
if (err_code < 0)
return;
if (0) { /* fixed dark-gain */
data[1] = 0; /* reg 94, Y Gain (1.75) */
data[2] = 0; /* reg 95, UV Gain (1.75) */
data[3] = 0x3f; /* reg 96, Y Gain/UV Gain/disable
* auto dark-gain */
data[4] = 0; /* reg 97, set fixed dark level */
data[5] = 0; /* reg 98, don't care */
} else { /* auto dark-gain */
data[1] = 0; /* reg 94, Y Gain (auto) */
data[2] = 0; /* reg 95, UV Gain (1.75) */
data[3] = 0x78; /* reg 96, Y Gain/UV Gain/disable
* auto dark-gain */
switch (gspca_dev->width) {
/* case 1280: */
/* data[4] = 154;
* reg 97, %3 shadow point (unit: 256 pixel) */
/* data[5] = 51;
* reg 98, %1 highlight point
* (uint: 256 pixel) */
/* break; */
default:
/* case 640: */
data[4] = 36; /* reg 97, %3 shadow point
* (unit: 256 pixel) */
data[5] = 12; /* reg 98, %1 highlight point
* (uint: 256 pixel) */
break;
case 320:
data[4] = 9; /* reg 97, %3 shadow point
* (unit: 256 pixel) */
data[5] = 3; /* reg 98, %1 highlight point
* (uint: 256 pixel) */
break;
}
}
/* auto dark-gain */
data[0] = 0x5e; /* address */
err_code = reg_w(gspca_dev, data[0], 6);
if (err_code < 0)
return;
data[0] = 0x67;
data[1] = 0x13; /* reg 103, first pixel B, disable sharpness */
err_code = reg_w(gspca_dev, data[0], 2);
if (err_code < 0)
return;
/*
* initialize the value of MI sensor...
*/
MI_buf = kzalloc(ATTR_TOTAL_MI_REG * sizeof *MI_buf, GFP_KERNEL);
MI_buf[REG_HW_MI_1] = 0x000a;
MI_buf[REG_HW_MI_2] = 0x000c;
MI_buf[REG_HW_MI_3] = 0x0405;
MI_buf[REG_HW_MI_4] = 0x0507;
/* mi_Attr_Reg_[REG_HW_MI_5] = 0x01ff;//13 */
MI_buf[REG_HW_MI_5] = 0x0013; /* 13 */
MI_buf[REG_HW_MI_6] = 0x001f; /* vertical blanking */
/* mi_Attr_Reg_[REG_HW_MI_6] = 0x0400; // vertical blanking */
MI_buf[REG_HW_MI_7] = 0x0002;
/* mi_Attr_Reg_[REG_HW_MI_9] = 0x015f; */
/* mi_Attr_Reg_[REG_HW_MI_9] = 0x030f; */
MI_buf[REG_HW_MI_9] = 0x0374;
MI_buf[REG_HW_MI_B] = 0x0000;
MI_buf[REG_HW_MI_C] = 0x0000;
MI_buf[REG_HW_MI_D] = 0x0000;
MI_buf[REG_HW_MI_1E] = 0x8000;
/* mi_Attr_Reg_[REG_HW_MI_20] = 0x1104; */
MI_buf[REG_HW_MI_20] = 0x1104; /* 0x111c; */
MI_buf[REG_HW_MI_2B] = 0x0008;
/* mi_Attr_Reg_[REG_HW_MI_2C] = 0x000f; */
MI_buf[REG_HW_MI_2C] = 0x001f; /* lita suggest */
MI_buf[REG_HW_MI_2D] = 0x0008;
MI_buf[REG_HW_MI_2E] = 0x0008;
MI_buf[REG_HW_MI_35] = 0x0051;
MI_buf[REG_HW_MI_5F] = 0x0904; /* fail to write */
MI_buf[REG_HW_MI_60] = 0x0000;
MI_buf[REG_HW_MI_61] = 0x0000;
MI_buf[REG_HW_MI_62] = 0x0498;
MI_buf[REG_HW_MI_63] = 0x0000;
MI_buf[REG_HW_MI_64] = 0x0000;
MI_buf[REG_HW_MI_F1] = 0x0001;
/* changing while setting up the different value of dx/dy */
if (gspca_dev->width != 1280) {
MI_buf[0x01] = 0x010a;
MI_buf[0x02] = 0x014c;
MI_buf[0x03] = 0x01e5;
MI_buf[0x04] = 0x0287;
}
MI_buf[0x20] = 0x1104;
bulk_w(gspca_dev, MI_buf + 1, 1);
bulk_w(gspca_dev, MI_buf + 2, 2);
bulk_w(gspca_dev, MI_buf + 3, 3);
bulk_w(gspca_dev, MI_buf + 4, 4);
bulk_w(gspca_dev, MI_buf + 5, 5);
bulk_w(gspca_dev, MI_buf + 6, 6);
bulk_w(gspca_dev, MI_buf + 7, 7);
bulk_w(gspca_dev, MI_buf + 9, 9);
bulk_w(gspca_dev, MI_buf + 0x0b, 0x0b);
bulk_w(gspca_dev, MI_buf + 0x0c, 0x0c);
bulk_w(gspca_dev, MI_buf + 0x0d, 0x0d);
bulk_w(gspca_dev, MI_buf + 0x1e, 0x1e);
bulk_w(gspca_dev, MI_buf + 0x20, 0x20);
bulk_w(gspca_dev, MI_buf + 0x2b, 0x2b);
bulk_w(gspca_dev, MI_buf + 0x2c, 0x2c);
bulk_w(gspca_dev, MI_buf + 0x2d, 0x2d);
bulk_w(gspca_dev, MI_buf + 0x2e, 0x2e);
bulk_w(gspca_dev, MI_buf + 0x35, 0x35);
bulk_w(gspca_dev, MI_buf + 0x5f, 0x5f);
bulk_w(gspca_dev, MI_buf + 0x60, 0x60);
bulk_w(gspca_dev, MI_buf + 0x61, 0x61);
bulk_w(gspca_dev, MI_buf + 0x62, 0x62);
bulk_w(gspca_dev, MI_buf + 0x63, 0x63);
bulk_w(gspca_dev, MI_buf + 0x64, 0x64);
bulk_w(gspca_dev, MI_buf + 0xf1, 0xf1);
kfree(MI_buf);
intpipe = usb_sndintpipe(gspca_dev->dev, 0);
err_code = usb_clear_halt(gspca_dev->dev, intpipe);
data[0] = 0x00;
data[1] = 0x4d; /* ISOC transfering enable... */
reg_w(gspca_dev, data[0], 2);
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
int result;
gspca_dev->usb_buf[0] = 1;
gspca_dev->usb_buf[1] = 0;
result = reg_w(gspca_dev, gspca_dev->usb_buf[0], 2);
if (result < 0)
PDEBUG(D_ERR, "Camera Stop failed");
}
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct gspca_frame *frame, /* target */
__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 leng: %d",
p, len);
frame = gspca_frame_add(gspca_dev, LAST_PACKET,
frame, data, 0);
/* put the JPEG header */
jpeg_put_header(gspca_dev, frame,
sd->qindex, 0x21);
data += 16;
len -= 16;
break;
}
}
}
gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}
/* 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(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,
#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);
