diff options
Diffstat (limited to 'drivers/media/usb/gspca/mars.c')
| -rw-r--r-- | drivers/media/usb/gspca/mars.c | 439 |
1 files changed, 439 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/mars.c b/drivers/media/usb/gspca/mars.c new file mode 100644 index 000000000000..ff2c5abf115b --- /dev/null +++ b/drivers/media/usb/gspca/mars.c @@ -0,0 +1,439 @@ +/* + * 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->height, gspca_dev->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->width / 8; /* h_size , reg 2 */ + data[4] = gspca_dev->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); |