diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/media/video/gspca/pac7302.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/media/video/gspca/pac7302.c | 971 |
1 files changed, 0 insertions, 971 deletions
diff --git a/ANDROID_3.4.5/drivers/media/video/gspca/pac7302.c b/ANDROID_3.4.5/drivers/media/video/gspca/pac7302.c deleted file mode 100644 index 30662fcc..00000000 --- a/ANDROID_3.4.5/drivers/media/video/gspca/pac7302.c +++ /dev/null @@ -1,971 +0,0 @@ -/* - * Pixart PAC7302 driver - * - * Copyright (C) 2008-2012 Jean-Francois Moine <http://moinejf.free.fr> - * Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li - * - * Separated from Pixart PAC7311 library by Márton Németh - * Camera button input handling by Márton Németh <nm127@freemail.hu> - * Copyright (C) 2009-2010 Márton Németh <nm127@freemail.hu> - * - * 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 - 0x78 Global control, bit 6 controls the LED (inverted) - - Register page 3: - - Address Description - 0x02 Clock divider 3-63, fps = 90 / val. Must be a multiple of 3 on - the 7302, so one of 3, 6, 9, ..., except when between 6 and 12? - 0x03 Variable framerate ctrl reg2==3: 0 -> ~30 fps, 255 -> ~22fps - 0x04 Another var framerate ctrl reg2==3, reg3==0: 0 -> ~30 fps, - 63 -> ~27 fps, the 2 msb's must always be 1 !! - 0x05 Another var framerate ctrl reg2==3, reg3==0, reg4==0xc0: - 1 -> ~30 fps, 2 -> ~20 fps - 0x0e Exposure bits 0-7, 0-448, 0 = use full frame time - 0x0f Exposure bit 8, 0-448, 448 = no exposure at all - 0x10 Master gain 0-31 - 0x21 Bitfield: 0-1 unused, 2-3 vflip/hflip, 4-5 unknown, 6-7 unused - - The registers are accessed in the following functions: - - Page | Register | Function - -----+------------+--------------------------------------------------- - 0 | 0x0f..0x20 | setcolors() - 0 | 0xa2..0xab | setbrightcont() - 0 | 0xc5 | setredbalance() - 0 | 0xc6 | setwhitebalance() - 0 | 0xc7 | setbluebalance() - 0 | 0xdc | setbrightcont(), setcolors() - 3 | 0x02 | setexposure() - 3 | 0x10 | setgain() - 3 | 0x11 | setcolors(), setgain(), setexposure(), sethvflip() - 3 | 0x21 | sethvflip() -*/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/input.h> -#include <media/v4l2-chip-ident.h> -#include "gspca.h" -/* Include pac common sof detection functions */ -#include "pac_common.h" - -MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>, " - "Thomas Kaiser thomas@kaiser-linux.li"); -MODULE_DESCRIPTION("Pixart PAC7302"); -MODULE_LICENSE("GPL"); - -enum e_ctrl { - BRIGHTNESS, - CONTRAST, - COLORS, - WHITE_BALANCE, - RED_BALANCE, - BLUE_BALANCE, - GAIN, - AUTOGAIN, - EXPOSURE, - VFLIP, - HFLIP, - NCTRLS /* number of controls */ -}; - -/* specific webcam descriptor for pac7302 */ -struct sd { - struct gspca_dev gspca_dev; /* !! must be the first item */ - - struct gspca_ctrl ctrls[NCTRLS]; - - u8 flags; -#define FL_HFLIP 0x01 /* mirrored by default */ -#define FL_VFLIP 0x02 /* vertical flipped by default */ - - u8 sof_read; - s8 autogain_ignore_frames; - - atomic_t avg_lum; -}; - -/* V4L2 controls supported by the driver */ -static void setbrightcont(struct gspca_dev *gspca_dev); -static void setcolors(struct gspca_dev *gspca_dev); -static void setwhitebalance(struct gspca_dev *gspca_dev); -static void setredbalance(struct gspca_dev *gspca_dev); -static void setbluebalance(struct gspca_dev *gspca_dev); -static void setgain(struct gspca_dev *gspca_dev); -static void setexposure(struct gspca_dev *gspca_dev); -static void setautogain(struct gspca_dev *gspca_dev); -static void sethvflip(struct gspca_dev *gspca_dev); - -static const struct ctrl sd_ctrls[] = { -[BRIGHTNESS] = { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = 0, -#define BRIGHTNESS_MAX 0x20 - .maximum = BRIGHTNESS_MAX, - .step = 1, - .default_value = 0x10, - }, - .set_control = setbrightcont - }, -[CONTRAST] = { - { - .id = V4L2_CID_CONTRAST, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contrast", - .minimum = 0, -#define CONTRAST_MAX 255 - .maximum = CONTRAST_MAX, - .step = 1, - .default_value = 127, - }, - .set_control = setbrightcont - }, -[COLORS] = { - { - .id = V4L2_CID_SATURATION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Saturation", - .minimum = 0, -#define COLOR_MAX 255 - .maximum = COLOR_MAX, - .step = 1, - .default_value = 127 - }, - .set_control = setcolors - }, -[WHITE_BALANCE] = { - { - .id = V4L2_CID_WHITE_BALANCE_TEMPERATURE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "White Balance", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = 4, - }, - .set_control = setwhitebalance - }, -[RED_BALANCE] = { - { - .id = V4L2_CID_RED_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Red", - .minimum = 0, - .maximum = 3, - .step = 1, - .default_value = 1, - }, - .set_control = setredbalance - }, -[BLUE_BALANCE] = { - { - .id = V4L2_CID_BLUE_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Blue", - .minimum = 0, - .maximum = 3, - .step = 1, - .default_value = 1, - }, - .set_control = setbluebalance - }, -[GAIN] = { - { - .id = V4L2_CID_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain", - .minimum = 0, - .maximum = 255, - .step = 1, -#define GAIN_DEF 127 -#define GAIN_KNEE 255 /* Gain seems to cause little noise on the pac73xx */ - .default_value = GAIN_DEF, - }, - .set_control = setgain - }, -[EXPOSURE] = { - { - .id = V4L2_CID_EXPOSURE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Exposure", - .minimum = 0, - .maximum = 1023, - .step = 1, -#define EXPOSURE_DEF 66 /* 33 ms / 30 fps */ -#define EXPOSURE_KNEE 133 /* 66 ms / 15 fps */ - .default_value = EXPOSURE_DEF, - }, - .set_control = setexposure - }, -[AUTOGAIN] = { - { - .id = V4L2_CID_AUTOGAIN, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Auto Gain", - .minimum = 0, - .maximum = 1, - .step = 1, -#define AUTOGAIN_DEF 1 - .default_value = AUTOGAIN_DEF, - }, - .set_control = setautogain, - }, -[HFLIP] = { - { - .id = V4L2_CID_HFLIP, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Mirror", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - .set_control = sethvflip, - }, -[VFLIP] = { - { - .id = V4L2_CID_VFLIP, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Vflip", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - .set_control = sethvflip - }, -}; - -static const struct v4l2_pix_format vga_mode[] = { - {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, - .bytesperline = 640, - .sizeimage = 640 * 480 * 3 / 8 + 590, - .colorspace = V4L2_COLORSPACE_JPEG, - }, -}; - -#define LOAD_PAGE3 255 -#define END_OF_SEQUENCE 0 - -/* pac 7302 */ -static const u8 init_7302[] = { -/* index,value */ - 0xff, 0x01, /* page 1 */ - 0x78, 0x00, /* deactivate */ - 0xff, 0x01, - 0x78, 0x40, /* led off */ -}; -static const u8 start_7302[] = { -/* index, len, [value]* */ - 0xff, 1, 0x00, /* page 0 */ - 0x00, 12, 0x01, 0x40, 0x40, 0x40, 0x01, 0xe0, 0x02, 0x80, - 0x00, 0x00, 0x00, 0x00, - 0x0d, 24, 0x03, 0x01, 0x00, 0xb5, 0x07, 0xcb, 0x00, 0x00, - 0x07, 0xc8, 0x00, 0xea, 0x07, 0xcf, 0x07, 0xf7, - 0x07, 0x7e, 0x01, 0x0b, 0x00, 0x00, 0x00, 0x11, - 0x26, 2, 0xaa, 0xaa, - 0x2e, 1, 0x31, - 0x38, 1, 0x01, - 0x3a, 3, 0x14, 0xff, 0x5a, - 0x43, 11, 0x00, 0x0a, 0x18, 0x11, 0x01, 0x2c, 0x88, 0x11, - 0x00, 0x54, 0x11, - 0x55, 1, 0x00, - 0x62, 4, 0x10, 0x1e, 0x1e, 0x18, - 0x6b, 1, 0x00, - 0x6e, 3, 0x08, 0x06, 0x00, - 0x72, 3, 0x00, 0xff, 0x00, - 0x7d, 23, 0x01, 0x01, 0x58, 0x46, 0x50, 0x3c, 0x50, 0x3c, - 0x54, 0x46, 0x54, 0x56, 0x52, 0x50, 0x52, 0x50, - 0x56, 0x64, 0xa4, 0x00, 0xda, 0x00, 0x00, - 0xa2, 10, 0x22, 0x2c, 0x3c, 0x54, 0x69, 0x7c, 0x9c, 0xb9, - 0xd2, 0xeb, - 0xaf, 1, 0x02, - 0xb5, 2, 0x08, 0x08, - 0xb8, 2, 0x08, 0x88, - 0xc4, 4, 0xae, 0x01, 0x04, 0x01, - 0xcc, 1, 0x00, - 0xd1, 11, 0x01, 0x30, 0x49, 0x5e, 0x6f, 0x7f, 0x8e, 0xa9, - 0xc1, 0xd7, 0xec, - 0xdc, 1, 0x01, - 0xff, 1, 0x01, /* page 1 */ - 0x12, 3, 0x02, 0x00, 0x01, - 0x3e, 2, 0x00, 0x00, - 0x76, 5, 0x01, 0x20, 0x40, 0x00, 0xf2, - 0x7c, 1, 0x00, - 0x7f, 10, 0x4b, 0x0f, 0x01, 0x2c, 0x02, 0x58, 0x03, 0x20, - 0x02, 0x00, - 0x96, 5, 0x01, 0x10, 0x04, 0x01, 0x04, - 0xc8, 14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, - 0x07, 0x00, 0x01, 0x07, 0x04, 0x01, - 0xd8, 1, 0x01, - 0xdb, 2, 0x00, 0x01, - 0xde, 7, 0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x00, - 0xe6, 4, 0x00, 0x00, 0x00, 0x01, - 0xeb, 1, 0x00, - 0xff, 1, 0x02, /* page 2 */ - 0x22, 1, 0x00, - 0xff, 1, 0x03, /* page 3 */ - 0, LOAD_PAGE3, /* load the page 3 */ - 0x11, 1, 0x01, - 0xff, 1, 0x02, /* page 2 */ - 0x13, 1, 0x00, - 0x22, 4, 0x1f, 0xa4, 0xf0, 0x96, - 0x27, 2, 0x14, 0x0c, - 0x2a, 5, 0xc8, 0x00, 0x18, 0x12, 0x22, - 0x64, 8, 0x00, 0x00, 0xf0, 0x01, 0x14, 0x44, 0x44, 0x44, - 0x6e, 1, 0x08, - 0xff, 1, 0x01, /* page 1 */ - 0x78, 1, 0x00, - 0, END_OF_SEQUENCE /* end of sequence */ -}; - -#define SKIP 0xaa -/* page 3 - the value SKIP says skip the index - see reg_w_page() */ -static const u8 page3_7302[] = { - 0x90, 0x40, 0x03, 0x00, 0xc0, 0x01, 0x14, 0x16, - 0x14, 0x12, 0x00, 0x00, 0x00, 0x02, 0x33, 0x00, - 0x0f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x47, 0x01, 0xb3, 0x01, 0x00, - 0x00, 0x08, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x21, - 0x00, 0x00, 0x00, 0x54, 0xf4, 0x02, 0x52, 0x54, - 0xa4, 0xb8, 0xe0, 0x2a, 0xf6, 0x00, 0x00, 0x00, - 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0xfc, 0x00, 0xf2, 0x1f, 0x04, 0x00, 0x00, - SKIP, 0x00, 0x00, 0xc0, 0xc0, 0x10, 0x00, 0x00, - 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x40, 0xff, 0x03, 0x19, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0xc8, 0xc8, 0xc8, - 0xc8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, - 0x08, 0x10, 0x24, 0x40, 0x00, 0x00, 0x00, 0x00, - 0x01, 0x00, 0x02, 0x47, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x02, 0xfa, 0x00, 0x64, 0x5a, 0x28, 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 i: %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 i: %02x v: %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 i: %02x v: %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 *page3, unsigned int page3_len) -{ - int index, len; - - for (;;) { - index = *seq++; - len = *seq++; - switch (len) { - case END_OF_SEQUENCE: - return; - case LOAD_PAGE3: - reg_w_page(gspca_dev, page3, page3_len); - break; - default: -#ifdef GSPCA_DEBUG - if (len > USB_BUF_SZ) { - PDEBUG(D_ERR|D_STREAM, - "Incorrect variable sequence"); - return; - } -#endif - 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 pac7302 */ -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->cam_mode = vga_mode; /* only 640x480 */ - cam->nmodes = ARRAY_SIZE(vga_mode); - - gspca_dev->cam.ctrls = sd->ctrls; - - sd->flags = id->driver_info; - return 0; -} - -/* This function is used by pac7302 only */ -static void setbrightcont(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - int i, v; - static const u8 max[10] = - {0x29, 0x33, 0x42, 0x5a, 0x6e, 0x80, 0x9f, 0xbb, - 0xd4, 0xec}; - static const u8 delta[10] = - {0x35, 0x33, 0x33, 0x2f, 0x2a, 0x25, 0x1e, 0x17, - 0x11, 0x0b}; - - reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - for (i = 0; i < 10; i++) { - v = max[i]; - v += (sd->ctrls[BRIGHTNESS].val - BRIGHTNESS_MAX) - * 150 / BRIGHTNESS_MAX; /* 200 ? */ - v -= delta[i] * sd->ctrls[CONTRAST].val / CONTRAST_MAX; - if (v < 0) - v = 0; - else if (v > 0xff) - v = 0xff; - reg_w(gspca_dev, 0xa2 + i, v); - } - reg_w(gspca_dev, 0xdc, 0x01); -} - -/* This function is used by pac7302 only */ -static void setcolors(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - int i, v; - static const int a[9] = - {217, -212, 0, -101, 170, -67, -38, -315, 355}; - static const int b[9] = - {19, 106, 0, 19, 106, 1, 19, 106, 1}; - - reg_w(gspca_dev, 0xff, 0x03); /* page 3 */ - reg_w(gspca_dev, 0x11, 0x01); - reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - for (i = 0; i < 9; i++) { - v = a[i] * sd->ctrls[COLORS].val / COLOR_MAX + b[i]; - reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07); - reg_w(gspca_dev, 0x0f + 2 * i + 1, v); - } - reg_w(gspca_dev, 0xdc, 0x01); -} - -static void setwhitebalance(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - - reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - reg_w(gspca_dev, 0xc6, sd->ctrls[WHITE_BALANCE].val); - - reg_w(gspca_dev, 0xdc, 0x01); -} - -static void setredbalance(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - - reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - reg_w(gspca_dev, 0xc5, sd->ctrls[RED_BALANCE].val); - - reg_w(gspca_dev, 0xdc, 0x01); -} - -static void setbluebalance(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - - reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - reg_w(gspca_dev, 0xc7, sd->ctrls[BLUE_BALANCE].val); - - reg_w(gspca_dev, 0xdc, 0x01); -} - -static void setgain(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - - reg_w(gspca_dev, 0xff, 0x03); /* page 3 */ - reg_w(gspca_dev, 0x10, sd->ctrls[GAIN].val >> 3); - - /* load registers to sensor (Bit 0, auto clear) */ - reg_w(gspca_dev, 0x11, 0x01); -} - -static void setexposure(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - u8 clockdiv; - u16 exposure; - - /* register 2 of frame 3 contains the clock divider configuring the - no fps according to the formula: 90 / reg. sd->exposure is the - desired exposure time in 0.5 ms. */ - clockdiv = (90 * sd->ctrls[EXPOSURE].val + 1999) / 2000; - - /* Note clockdiv = 3 also works, but when running at 30 fps, depending - on the scene being recorded, the camera switches to another - quantization table for certain JPEG blocks, and we don't know how - to decompress these blocks. So we cap the framerate at 15 fps */ - if (clockdiv < 6) - clockdiv = 6; - else if (clockdiv > 63) - clockdiv = 63; - - /* reg2 MUST be a multiple of 3, except when between 6 and 12? - Always round up, otherwise we cannot get the desired frametime - using the partial frame time exposure control */ - if (clockdiv < 6 || clockdiv > 12) - clockdiv = ((clockdiv + 2) / 3) * 3; - - /* frame exposure time in ms = 1000 * clockdiv / 90 -> - exposure = (sd->exposure / 2) * 448 / (1000 * clockdiv / 90) */ - exposure = (sd->ctrls[EXPOSURE].val * 45 * 448) / (1000 * clockdiv); - /* 0 = use full frametime, 448 = no exposure, reverse it */ - exposure = 448 - exposure; - - reg_w(gspca_dev, 0xff, 0x03); /* page 3 */ - reg_w(gspca_dev, 0x02, clockdiv); - reg_w(gspca_dev, 0x0e, exposure & 0xff); - reg_w(gspca_dev, 0x0f, exposure >> 8); - - /* load registers to sensor (Bit 0, auto clear) */ - reg_w(gspca_dev, 0x11, 0x01); -} - -static void setautogain(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - - /* 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. */ - if (sd->ctrls[AUTOGAIN].val) { - sd->ctrls[EXPOSURE].val = EXPOSURE_DEF; - sd->ctrls[GAIN].val = GAIN_DEF; - sd->autogain_ignore_frames = - PAC_AUTOGAIN_IGNORE_FRAMES; - } else { - sd->autogain_ignore_frames = -1; - } - setexposure(gspca_dev); - setgain(gspca_dev); -} - -static void sethvflip(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - u8 data, hflip, vflip; - - hflip = sd->ctrls[HFLIP].val; - if (sd->flags & FL_HFLIP) - hflip = !hflip; - vflip = sd->ctrls[VFLIP].val; - if (sd->flags & FL_VFLIP) - vflip = !vflip; - - reg_w(gspca_dev, 0xff, 0x03); /* page 3 */ - data = (hflip ? 0x08 : 0x00) | (vflip ? 0x04 : 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 pac7302 */ -static int sd_init(struct gspca_dev *gspca_dev) -{ - reg_w_seq(gspca_dev, init_7302, sizeof(init_7302)/2); - return gspca_dev->usb_err; -} - -static int sd_start(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - - reg_w_var(gspca_dev, start_7302, - page3_7302, sizeof(page3_7302)); - setbrightcont(gspca_dev); - setcolors(gspca_dev); - setwhitebalance(gspca_dev); - setredbalance(gspca_dev); - setbluebalance(gspca_dev); - setautogain(gspca_dev); - sethvflip(gspca_dev); - - /* only resolution 640x480 is supported for pac7302 */ - - sd->sof_read = 0; - atomic_set(&sd->avg_lum, 270 + sd->ctrls[BRIGHTNESS].val); - - /* start stream */ - reg_w(gspca_dev, 0xff, 0x01); - reg_w(gspca_dev, 0x78, 0x01); - - return gspca_dev->usb_err; -} - -static void sd_stopN(struct gspca_dev *gspca_dev) -{ - - /* stop stream */ - reg_w(gspca_dev, 0xff, 0x01); - reg_w(gspca_dev, 0x78, 0x00); -} - -/* called on streamoff with alt 0 and on disconnect for pac7302 */ -static void sd_stop0(struct gspca_dev *gspca_dev) -{ - if (!gspca_dev->present) - return; - reg_w(gspca_dev, 0xff, 0x01); - reg_w(gspca_dev, 0x78, 0x40); -} - -/* !! coarse_grained_expo_autogain is not used !! */ -#define exp_too_low_cnt flags -#define exp_too_high_cnt sof_read -#include "autogain_functions.h" - -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; - const int deadzone = 30; - - if (sd->autogain_ignore_frames < 0) - return; - - if (sd->autogain_ignore_frames > 0) { - sd->autogain_ignore_frames--; - } else { - desired_lum = 270 + sd->ctrls[BRIGHTNESS].val; - - auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum, - deadzone, GAIN_KNEE, EXPOSURE_KNEE); - sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; - } -} - -/* JPEG header */ -static const u8 jpeg_header[] = { - 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 */ - 0x02, 0x80, /* height = 640 (image rotated) */ - 0x01, 0xe0, /* width = 480 */ - 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 */ -}; - -/* 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; - u8 *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 = 61 + sizeof pac_sof_marker; - footer_length = 74; - - /* 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]); - - /* Start the new frame with the jpeg header */ - /* The PAC7302 has the image rotated 90 degrees */ - gspca_frame_add(gspca_dev, FIRST_PACKET, - jpeg_header, sizeof jpeg_header); - } - gspca_frame_add(gspca_dev, INTER_PACKET, data, len); -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int sd_dbg_s_register(struct gspca_dev *gspca_dev, - struct v4l2_dbg_register *reg) -{ - u8 index; - u8 value; - - /* reg->reg: bit0..15: reserved for register index (wIndex is 16bit - long on the USB bus) - */ - if (reg->match.type == V4L2_CHIP_MATCH_HOST && - reg->match.addr == 0 && - (reg->reg < 0x000000ff) && - (reg->val <= 0x000000ff) - ) { - /* Currently writing to page 0 is only supported. */ - /* reg_w() only supports 8bit index */ - index = reg->reg; - value = reg->val; - - /* Note that there shall be no access to other page - by any other function between the page swith and - the actual register write */ - reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ - reg_w(gspca_dev, index, value); - - reg_w(gspca_dev, 0xdc, 0x01); - } - return gspca_dev->usb_err; -} - -static int sd_chip_ident(struct gspca_dev *gspca_dev, - struct v4l2_dbg_chip_ident *chip) -{ - int ret = -EINVAL; - - if (chip->match.type == V4L2_CHIP_MATCH_HOST && - chip->match.addr == 0) { - chip->revision = 0; - chip->ident = V4L2_IDENT_UNKNOWN; - ret = 0; - } - return ret; -} -#endif - -#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) /* interrput 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 - -/* sub-driver description for pac7302 */ -static const struct sd_desc sd_desc = { - .name = KBUILD_MODNAME, - .ctrls = sd_ctrls, - .nctrls = ARRAY_SIZE(sd_ctrls), - .config = sd_config, - .init = sd_init, - .start = sd_start, - .stopN = sd_stopN, - .stop0 = sd_stop0, - .pkt_scan = sd_pkt_scan, - .dq_callback = do_autogain, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .set_register = sd_dbg_s_register, - .get_chip_ident = sd_chip_ident, -#endif -#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(0x06f8, 0x3009)}, - {USB_DEVICE(0x06f8, 0x301b)}, - {USB_DEVICE(0x093a, 0x2620)}, - {USB_DEVICE(0x093a, 0x2621)}, - {USB_DEVICE(0x093a, 0x2622), .driver_info = FL_VFLIP}, - {USB_DEVICE(0x093a, 0x2624), .driver_info = FL_VFLIP}, - {USB_DEVICE(0x093a, 0x2625)}, - {USB_DEVICE(0x093a, 0x2626)}, - {USB_DEVICE(0x093a, 0x2628)}, - {USB_DEVICE(0x093a, 0x2629), .driver_info = FL_VFLIP}, - {USB_DEVICE(0x093a, 0x262a)}, - {USB_DEVICE(0x093a, 0x262c)}, - {USB_DEVICE(0x145f, 0x013c)}, - {} -}; -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 = KBUILD_MODNAME, - .id_table = device_table, - .probe = sd_probe, - .disconnect = gspca_disconnect, -#ifdef CONFIG_PM - .suspend = gspca_suspend, - .resume = gspca_resume, -#endif -}; - -module_usb_driver(sd_driver); |