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path: root/drivers/media/video/gspca/pac7311.c
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Diffstat (limited to 'drivers/media/video/gspca/pac7311.c')
-rw-r--r--drivers/media/video/gspca/pac7311.c701
1 files changed, 0 insertions, 701 deletions
diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
deleted file mode 100644
index ba3558d..0000000
--- a/drivers/media/video/gspca/pac7311.c
+++ /dev/null
@@ -1,701 +0,0 @@
-/*
- * Pixart PAC7311 library
- * Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li
- *
- * 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
- */
-
-/* Some documentation about various registers as determined by trial and error.
- *
- * Register page 1:
- *
- * Address Description
- * 0x08 Unknown compressor related, must always be 8 except when not
- * in 640x480 resolution and page 4 reg 2 <= 3 then set it to 9 !
- * 0x1b Auto white balance related, bit 0 is AWB enable (inverted)
- * bits 345 seem to toggle per color gains on/off (inverted)
- * 0x78 Global control, bit 6 controls the LED (inverted)
- * 0x80 Compression balance, interesting settings:
- * 0x01 Use this to allow the camera to switch to higher compr.
- * on the fly. Needed to stay within bandwidth @ 640x480@30
- * 0x1c From usb captures under Windows for 640x480
- * 0x2a Values >= this switch the camera to a lower compression,
- * using the same table for both luminance and chrominance.
- * This gives a sharper picture. Usable only at 640x480@ <
- * 15 fps or 320x240 / 160x120. Note currently the driver
- * does not use this as the quality gain is small and the
- * generated JPG-s are only understood by v4l-utils >= 0.8.9
- * 0x3f From usb captures under Windows for 320x240
- * 0x69 From usb captures under Windows for 160x120
- *
- * Register page 4:
- *
- * Address Description
- * 0x02 Clock divider 2-63, fps =~ 60 / val. Must be a multiple of 3 on
- * the 7302, so one of 3, 6, 9, ..., except when between 6 and 12?
- * 0x0f Master gain 1-245, low value = high gain
- * 0x10 Another gain 0-15, limited influence (1-2x gain I guess)
- * 0x21 Bitfield: 0-1 unused, 2-3 vflip/hflip, 4-5 unknown, 6-7 unused
- * Note setting vflip disabled leads to a much lower image quality,
- * so we always vflip, and tell userspace to flip it back
- * 0x27 Seems to toggle various gains on / off, Setting bit 7 seems to
- * completely disable the analog amplification block. Set to 0x68
- * for max gain, 0x14 for minimal gain.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#define MODULE_NAME "pac7311"
-
-#include <linux/input.h>
-#include "gspca.h"
-/* Include pac common sof detection functions */
-#include "pac_common.h"
-
-#define PAC7311_GAIN_DEFAULT 122
-#define PAC7311_EXPOSURE_DEFAULT 3 /* 20 fps, avoid using high compr. */
-
-MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li");
-MODULE_DESCRIPTION("Pixart PAC7311");
-MODULE_LICENSE("GPL");
-
-struct sd {
- struct gspca_dev gspca_dev; /* !! must be the first item */
-
- struct v4l2_ctrl *contrast;
- struct v4l2_ctrl *hflip;
-
- u8 sof_read;
- u8 autogain_ignore_frames;
-
- atomic_t avg_lum;
-};
-
-static const struct v4l2_pix_format vga_mode[] = {
- {160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
- .bytesperline = 160,
- .sizeimage = 160 * 120 * 3 / 8 + 590,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .priv = 2},
- {320, 240, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
- .bytesperline = 320,
- .sizeimage = 320 * 240 * 3 / 8 + 590,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .priv = 1},
- {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
- .bytesperline = 640,
- .sizeimage = 640 * 480 * 3 / 8 + 590,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .priv = 0},
-};
-
-#define LOAD_PAGE4 254
-#define END_OF_SEQUENCE 0
-
-static const __u8 init_7311[] = {
- 0xff, 0x01,
- 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */
- 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */
- 0x78, 0x44, /* Bit_0=start stream, Bit_6=LED */
- 0xff, 0x04,
- 0x27, 0x80,
- 0x28, 0xca,
- 0x29, 0x53,
- 0x2a, 0x0e,
- 0xff, 0x01,
- 0x3e, 0x20,
-};
-
-static const __u8 start_7311[] = {
-/* index, len, [value]* */
- 0xff, 1, 0x01, /* page 1 */
- 0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00,
- 0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c,
- 0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10,
- 0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00,
- 0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e,
- 0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49,
- 0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48,
- 0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78,
- 0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b,
- 0xd0, 0xff,
- 0x78, 6, 0x44, 0x00, 0xf2, 0x01, 0x01, 0x80,
- 0x7f, 18, 0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84,
- 0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14,
- 0x18, 0x20,
- 0x96, 3, 0x01, 0x08, 0x04,
- 0xa0, 4, 0x44, 0x44, 0x44, 0x04,
- 0xf0, 13, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00,
- 0x3f, 0x00, 0x0a, 0x01, 0x00,
- 0xff, 1, 0x04, /* page 4 */
- 0, LOAD_PAGE4, /* load the page 4 */
- 0x11, 1, 0x01,
- 0, END_OF_SEQUENCE /* end of sequence */
-};
-
-#define SKIP 0xaa
-/* page 4 - the value SKIP says skip the index - see reg_w_page() */
-static const __u8 page4_7311[] = {
- SKIP, SKIP, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f,
- 0x09, 0x00, SKIP, SKIP, 0x07, 0x00, 0x00, 0x62,
- 0x08, SKIP, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, SKIP,
- SKIP, 0x00, 0x08, SKIP, 0x03, SKIP, 0x00, 0x68,
- 0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00,
- 0x23, 0x28, 0x04, 0x11, 0x00, 0x00
-};
-
-static void reg_w_buf(struct gspca_dev *gspca_dev,
- __u8 index,
- const u8 *buffer, int len)
-{
- int ret;
-
- if (gspca_dev->usb_err < 0)
- return;
- memcpy(gspca_dev->usb_buf, buffer, len);
- ret = usb_control_msg(gspca_dev->dev,
- usb_sndctrlpipe(gspca_dev->dev, 0),
- 0, /* request */
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, /* value */
- index, gspca_dev->usb_buf, len,
- 500);
- if (ret < 0) {
- pr_err("reg_w_buf() failed index 0x%02x, error %d\n",
- index, ret);
- gspca_dev->usb_err = ret;
- }
-}
-
-
-static void reg_w(struct gspca_dev *gspca_dev,
- __u8 index,
- __u8 value)
-{
- int ret;
-
- if (gspca_dev->usb_err < 0)
- return;
- gspca_dev->usb_buf[0] = value;
- ret = usb_control_msg(gspca_dev->dev,
- usb_sndctrlpipe(gspca_dev->dev, 0),
- 0, /* request */
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, index, gspca_dev->usb_buf, 1,
- 500);
- if (ret < 0) {
- pr_err("reg_w() failed index 0x%02x, value 0x%02x, error %d\n",
- index, value, ret);
- gspca_dev->usb_err = ret;
- }
-}
-
-static void reg_w_seq(struct gspca_dev *gspca_dev,
- const __u8 *seq, int len)
-{
- while (--len >= 0) {
- reg_w(gspca_dev, seq[0], seq[1]);
- seq += 2;
- }
-}
-
-/* load the beginning of a page */
-static void reg_w_page(struct gspca_dev *gspca_dev,
- const __u8 *page, int len)
-{
- int index;
- int ret = 0;
-
- if (gspca_dev->usb_err < 0)
- return;
- for (index = 0; index < len; index++) {
- if (page[index] == SKIP) /* skip this index */
- continue;
- gspca_dev->usb_buf[0] = page[index];
- ret = usb_control_msg(gspca_dev->dev,
- usb_sndctrlpipe(gspca_dev->dev, 0),
- 0, /* request */
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, index, gspca_dev->usb_buf, 1,
- 500);
- if (ret < 0) {
- pr_err("reg_w_page() failed index 0x%02x, value 0x%02x, error %d\n",
- index, page[index], ret);
- gspca_dev->usb_err = ret;
- break;
- }
- }
-}
-
-/* output a variable sequence */
-static void reg_w_var(struct gspca_dev *gspca_dev,
- const __u8 *seq,
- const __u8 *page4, unsigned int page4_len)
-{
- int index, len;
-
- for (;;) {
- index = *seq++;
- len = *seq++;
- switch (len) {
- case END_OF_SEQUENCE:
- return;
- case LOAD_PAGE4:
- reg_w_page(gspca_dev, page4, page4_len);
- break;
- default:
- if (len > USB_BUF_SZ) {
- PDEBUG(D_ERR|D_STREAM,
- "Incorrect variable sequence");
- return;
- }
- while (len > 0) {
- if (len < 8) {
- reg_w_buf(gspca_dev,
- index, seq, len);
- seq += len;
- break;
- }
- reg_w_buf(gspca_dev, index, seq, 8);
- seq += 8;
- index += 8;
- len -= 8;
- }
- }
- }
- /* not reached */
-}
-
-/* this function is called at probe time for pac7311 */
-static int sd_config(struct gspca_dev *gspca_dev,
- const struct usb_device_id *id)
-{
- struct cam *cam = &gspca_dev->cam;
-
- cam->cam_mode = vga_mode;
- cam->nmodes = ARRAY_SIZE(vga_mode);
- cam->input_flags = V4L2_IN_ST_VFLIP;
-
- return 0;
-}
-
-static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
-{
- reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x10, val);
- /* load registers to sensor (Bit 0, auto clear) */
- reg_w(gspca_dev, 0x11, 0x01);
-}
-
-static void setgain(struct gspca_dev *gspca_dev, s32 val)
-{
- reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
- reg_w(gspca_dev, 0x0e, 0x00);
- reg_w(gspca_dev, 0x0f, gspca_dev->gain->maximum - val + 1);
-
- /* load registers to sensor (Bit 0, auto clear) */
- reg_w(gspca_dev, 0x11, 0x01);
-}
-
-static void setexposure(struct gspca_dev *gspca_dev, s32 val)
-{
- reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
- reg_w(gspca_dev, 0x02, val);
-
- /* load registers to sensor (Bit 0, auto clear) */
- reg_w(gspca_dev, 0x11, 0x01);
-
- /*
- * Page 1 register 8 must always be 0x08 except when not in
- * 640x480 mode and page 4 reg 2 <= 3 then it must be 9
- */
- reg_w(gspca_dev, 0xff, 0x01);
- if (gspca_dev->width != 640 && val <= 3)
- reg_w(gspca_dev, 0x08, 0x09);
- else
- reg_w(gspca_dev, 0x08, 0x08);
-
- /*
- * Page1 register 80 sets the compression balance, normally we
- * want / use 0x1c, but for 640x480@30fps we must allow the
- * camera to use higher compression or we may run out of
- * bandwidth.
- */
- if (gspca_dev->width == 640 && val == 2)
- reg_w(gspca_dev, 0x80, 0x01);
- else
- reg_w(gspca_dev, 0x80, 0x1c);
-
- /* load registers to sensor (Bit 0, auto clear) */
- reg_w(gspca_dev, 0x11, 0x01);
-}
-
-static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
-{
- __u8 data;
-
- reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
- data = (hflip ? 0x04 : 0x00) |
- (vflip ? 0x08 : 0x00);
- reg_w(gspca_dev, 0x21, data);
-
- /* load registers to sensor (Bit 0, auto clear) */
- reg_w(gspca_dev, 0x11, 0x01);
-}
-
-/* this function is called at probe and resume time for pac7311 */
-static int sd_init(struct gspca_dev *gspca_dev)
-{
- reg_w_seq(gspca_dev, init_7311, sizeof(init_7311)/2);
- return gspca_dev->usb_err;
-}
-
-static int sd_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_AUTOGAIN && ctrl->is_new && ctrl->val) {
- /* when switching to autogain set defaults to make sure
- we are on a valid point of the autogain gain /
- exposure knee graph, and give this change time to
- take effect before doing autogain. */
- gspca_dev->exposure->val = PAC7311_EXPOSURE_DEFAULT;
- gspca_dev->gain->val = PAC7311_GAIN_DEFAULT;
- sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
- }
-
- if (!gspca_dev->streaming)
- return 0;
-
- switch (ctrl->id) {
- case V4L2_CID_CONTRAST:
- setcontrast(gspca_dev, ctrl->val);
- break;
- case V4L2_CID_AUTOGAIN:
- if (gspca_dev->exposure->is_new || (ctrl->is_new && ctrl->val))
- setexposure(gspca_dev, gspca_dev->exposure->val);
- if (gspca_dev->gain->is_new || (ctrl->is_new && ctrl->val))
- setgain(gspca_dev, gspca_dev->gain->val);
- break;
- case V4L2_CID_HFLIP:
- sethvflip(gspca_dev, sd->hflip->val, 1);
- break;
- default:
- return -EINVAL;
- }
- return gspca_dev->usb_err;
-}
-
-static const struct v4l2_ctrl_ops sd_ctrl_ops = {
- .s_ctrl = sd_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, 5);
-
- sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
- V4L2_CID_CONTRAST, 0, 15, 1, 7);
- gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
- V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
- gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
- V4L2_CID_EXPOSURE, 2, 63, 1,
- PAC7311_EXPOSURE_DEFAULT);
- gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
- V4L2_CID_GAIN, 0, 244, 1,
- PAC7311_GAIN_DEFAULT);
- sd->hflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
- V4L2_CID_HFLIP, 0, 1, 1, 0);
-
- if (hdl->error) {
- pr_err("Could not initialize controls\n");
- return hdl->error;
- }
-
- v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, false);
- return 0;
-}
-
-/* -- start the camera -- */
-static int sd_start(struct gspca_dev *gspca_dev)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- sd->sof_read = 0;
-
- reg_w_var(gspca_dev, start_7311,
- page4_7311, sizeof(page4_7311));
- setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
- setgain(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->gain));
- setexposure(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->exposure));
- sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip), 1);
-
- /* set correct resolution */
- switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
- case 2: /* 160x120 */
- reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x17, 0x20);
- reg_w(gspca_dev, 0x87, 0x10);
- break;
- case 1: /* 320x240 */
- reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x17, 0x30);
- reg_w(gspca_dev, 0x87, 0x11);
- break;
- case 0: /* 640x480 */
- reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x17, 0x00);
- reg_w(gspca_dev, 0x87, 0x12);
- break;
- }
-
- sd->sof_read = 0;
- sd->autogain_ignore_frames = 0;
- atomic_set(&sd->avg_lum, -1);
-
- /* start stream */
- reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x78, 0x05);
-
- return gspca_dev->usb_err;
-}
-
-static void sd_stopN(struct gspca_dev *gspca_dev)
-{
- reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x27, 0x80);
- reg_w(gspca_dev, 0x28, 0xca);
- reg_w(gspca_dev, 0x29, 0x53);
- reg_w(gspca_dev, 0x2a, 0x0e);
- reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x3e, 0x20);
- reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
- reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
- reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
-}
-
-static void do_autogain(struct gspca_dev *gspca_dev)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- int avg_lum = atomic_read(&sd->avg_lum);
- int desired_lum, deadzone;
-
- if (avg_lum == -1)
- return;
-
- desired_lum = 170;
- deadzone = 20;
-
- if (sd->autogain_ignore_frames > 0)
- sd->autogain_ignore_frames--;
- else if (gspca_coarse_grained_expo_autogain(gspca_dev, avg_lum,
- desired_lum, deadzone))
- sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
-}
-
-/* JPEG header, part 1 */
-static const unsigned char pac_jpeg_header1[] = {
- 0xff, 0xd8, /* SOI: Start of Image */
-
- 0xff, 0xc0, /* SOF0: Start of Frame (Baseline DCT) */
- 0x00, 0x11, /* length = 17 bytes (including this length field) */
- 0x08 /* Precision: 8 */
- /* 2 bytes is placed here: number of image lines */
- /* 2 bytes is placed here: samples per line */
-};
-
-/* JPEG header, continued */
-static const unsigned char pac_jpeg_header2[] = {
- 0x03, /* Number of image components: 3 */
- 0x01, 0x21, 0x00, /* ID=1, Subsampling 1x1, Quantization table: 0 */
- 0x02, 0x11, 0x01, /* ID=2, Subsampling 2x1, Quantization table: 1 */
- 0x03, 0x11, 0x01, /* ID=3, Subsampling 2x1, Quantization table: 1 */
-
- 0xff, 0xda, /* SOS: Start Of Scan */
- 0x00, 0x0c, /* length = 12 bytes (including this length field) */
- 0x03, /* number of components: 3 */
- 0x01, 0x00, /* selector 1, table 0x00 */
- 0x02, 0x11, /* selector 2, table 0x11 */
- 0x03, 0x11, /* selector 3, table 0x11 */
- 0x00, 0x3f, /* Spectral selection: 0 .. 63 */
- 0x00 /* Successive approximation: 0 */
-};
-
-static void pac_start_frame(struct gspca_dev *gspca_dev,
- __u16 lines, __u16 samples_per_line)
-{
- unsigned char tmpbuf[4];
-
- gspca_frame_add(gspca_dev, FIRST_PACKET,
- pac_jpeg_header1, sizeof(pac_jpeg_header1));
-
- tmpbuf[0] = lines >> 8;
- tmpbuf[1] = lines & 0xff;
- tmpbuf[2] = samples_per_line >> 8;
- tmpbuf[3] = samples_per_line & 0xff;
-
- gspca_frame_add(gspca_dev, INTER_PACKET,
- tmpbuf, sizeof(tmpbuf));
- gspca_frame_add(gspca_dev, INTER_PACKET,
- pac_jpeg_header2, sizeof(pac_jpeg_header2));
-}
-
-/* this function is run at interrupt level */
-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;
- u8 *image;
- unsigned char *sof;
-
- sof = pac_find_sof(&sd->sof_read, data, len);
- if (sof) {
- int n, lum_offset, footer_length;
-
- /*
- * 6 bytes after the FF D9 EOF marker a number of lumination
- * bytes are send corresponding to different parts of the
- * image, the 14th and 15th byte after the EOF seem to
- * correspond to the center of the image.
- */
- lum_offset = 24 + sizeof pac_sof_marker;
- footer_length = 26;
-
- /* Finish decoding current frame */
- n = (sof - data) - (footer_length + sizeof pac_sof_marker);
- if (n < 0) {
- gspca_dev->image_len += n;
- n = 0;
- } else {
- gspca_frame_add(gspca_dev, INTER_PACKET, data, n);
- }
- image = gspca_dev->image;
- if (image != NULL
- && image[gspca_dev->image_len - 2] == 0xff
- && image[gspca_dev->image_len - 1] == 0xd9)
- gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
-
- n = sof - data;
- len -= n;
- data = sof;
-
- /* Get average lumination */
- if (gspca_dev->last_packet_type == LAST_PACKET &&
- n >= lum_offset)
- atomic_set(&sd->avg_lum, data[-lum_offset] +
- data[-lum_offset + 1]);
- else
- atomic_set(&sd->avg_lum, -1);
-
- /* Start the new frame with the jpeg header */
- pac_start_frame(gspca_dev,
- gspca_dev->height, gspca_dev->width);
- }
- gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
-}
-
-#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
-static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
- u8 *data, /* interrupt packet data */
- int len) /* interrupt packet length */
-{
- int ret = -EINVAL;
- u8 data0, data1;
-
- if (len == 2) {
- data0 = data[0];
- data1 = data[1];
- if ((data0 == 0x00 && data1 == 0x11) ||
- (data0 == 0x22 && data1 == 0x33) ||
- (data0 == 0x44 && data1 == 0x55) ||
- (data0 == 0x66 && data1 == 0x77) ||
- (data0 == 0x88 && data1 == 0x99) ||
- (data0 == 0xaa && data1 == 0xbb) ||
- (data0 == 0xcc && data1 == 0xdd) ||
- (data0 == 0xee && data1 == 0xff)) {
- input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
- input_sync(gspca_dev->input_dev);
- input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
- input_sync(gspca_dev->input_dev);
- ret = 0;
- }
- }
-
- return ret;
-}
-#endif
-
-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,
- .dq_callback = do_autogain,
-#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
- .int_pkt_scan = sd_int_pkt_scan,
-#endif
-};
-
-/* -- module initialisation -- */
-static const struct usb_device_id device_table[] = {
- {USB_DEVICE(0x093a, 0x2600)},
- {USB_DEVICE(0x093a, 0x2601)},
- {USB_DEVICE(0x093a, 0x2603)},
- {USB_DEVICE(0x093a, 0x2608)},
- {USB_DEVICE(0x093a, 0x260e)},
- {USB_DEVICE(0x093a, 0x260f)},
- {}
-};
-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);