Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 339 insertions, 0 deletions

diff --git a/drivers/usb/media/w9968cf.h b/drivers/usb/media/w9968cf.h
new file mode 100644
index 000000000000..8acbfe205bc7
--- /dev/null
+++ b/drivers/usb/media/w9968cf.h
@@ -0,0 +1,339 @@
+/***************************************************************************
+ * Video4Linux driver for W996[87]CF JPEG USB Dual Mode Camera Chip.       *
+ *                                                                         *
+ * Copyright (C) 2002-2004 by Luca Risolia <luca.risolia@studio.unibo.it>  *
+ *                                                                         *
+ * 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       *
+ * (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.               *
+ ***************************************************************************/
+
+#ifndef _W9968CF_H_
+#define _W9968CF_H_
+
+#include <linux/videodev.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/device.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/wait.h>
+#include <linux/config.h>
+#include <linux/param.h>
+#include <linux/types.h>
+#include <linux/rwsem.h>
+#include <asm/semaphore.h>
+
+#include <media/ovcamchip.h>
+
+#include "w9968cf_vpp.h"
+
+
+/****************************************************************************
+ * Default values                                                           *
+ ****************************************************************************/
+
+#define W9968CF_OVMOD_LOAD      1  /* automatic 'ovcamchip' module loading */
+#define W9968CF_VPPMOD_LOAD     1  /* automatic 'w9968cf-vpp' module loading */
+
+/* Comment/uncomment the following line to enable/disable debugging messages */
+#define W9968CF_DEBUG
+
+/* These have effect only if W9968CF_DEBUG is defined */
+#define W9968CF_DEBUG_LEVEL    2 /* from 0 to 6. 0 for no debug informations */
+#define W9968CF_SPECIFIC_DEBUG 0 /* 0 or 1 */
+
+#define W9968CF_MAX_DEVICES    32
+#define W9968CF_SIMCAMS        W9968CF_MAX_DEVICES /* simultaneous cameras */
+
+#define W9968CF_MAX_BUFFERS   32
+#define W9968CF_BUFFERS       2 /* n. of frame buffers from 2 to MAX_BUFFERS */
+
+/* Maximum data payload sizes in bytes for alternate settings */
+static const u16 wMaxPacketSize[] = {1023, 959, 895, 831, 767, 703, 639, 575,
+                                      511, 447, 383, 319, 255, 191, 127,  63};
+#define W9968CF_PACKET_SIZE      1023 /* according to wMaxPacketSizes[] */
+#define W9968CF_MIN_PACKET_SIZE  63 /* minimum value */
+#define W9968CF_ISO_PACKETS      5 /* n.of packets for isochronous transfers */
+#define W9968CF_USB_CTRL_TIMEOUT 1000 /* timeout (ms) for usb control commands */
+#define W9968CF_URBS             2 /* n. of scheduled URBs for ISO transfer */
+
+#define W9968CF_I2C_BUS_DELAY    4 /* delay in us for I2C bit r/w operations */
+#define W9968CF_I2C_RW_RETRIES   15 /* number of max I2C r/w retries */
+
+/* Available video formats */
+struct w9968cf_format {
+        const u16 palette;
+        const u16 depth;
+        const u8 compression;
+};
+
+static const struct w9968cf_format w9968cf_formatlist[] = {
+        { VIDEO_PALETTE_UYVY,    16, 0 }, /* original video */
+        { VIDEO_PALETTE_YUV422P, 16, 1 }, /* with JPEG compression */
+        { VIDEO_PALETTE_YUV420P, 12, 1 }, /* with JPEG compression */
+        { VIDEO_PALETTE_YUV420,  12, 1 }, /* same as YUV420P */
+        { VIDEO_PALETTE_YUYV,    16, 0 }, /* software conversion */
+        { VIDEO_PALETTE_YUV422,  16, 0 }, /* software conversion */
+        { VIDEO_PALETTE_GREY,     8, 0 }, /* software conversion */
+        { VIDEO_PALETTE_RGB555,  16, 0 }, /* software conversion */
+        { VIDEO_PALETTE_RGB565,  16, 0 }, /* software conversion */
+        { VIDEO_PALETTE_RGB24,   24, 0 }, /* software conversion */
+        { VIDEO_PALETTE_RGB32,   32, 0 }, /* software conversion */
+        { 0,                      0, 0 }  /* 0 is a terminating entry */
+};
+
+#define W9968CF_DECOMPRESSION    2 /* decomp:0=disable,1=force,2=any formats */
+#define W9968CF_PALETTE_DECOMP_OFF   VIDEO_PALETTE_UYVY    /* when decomp=0 */
+#define W9968CF_PALETTE_DECOMP_FORCE VIDEO_PALETTE_YUV420P /* when decomp=1 */
+#define W9968CF_PALETTE_DECOMP_ON    VIDEO_PALETTE_UYVY    /* when decomp=2 */
+
+#define W9968CF_FORCE_RGB        0  /* read RGB instead of BGR, yes=1/no=0 */
+
+#define W9968CF_MAX_WIDTH      800 /* Has effect if up-scaling is on */
+#define W9968CF_MAX_HEIGHT     600 /* Has effect if up-scaling is on */
+#define W9968CF_WIDTH          320 /* from 128 to 352, multiple of 16 */
+#define W9968CF_HEIGHT         240 /* from  96 to 288, multiple of 16 */
+
+#define W9968CF_CLAMPING       0 /* 0 disable, 1 enable video data clamping */
+#define W9968CF_FILTER_TYPE    0 /* 0 disable  1 (1-2-1), 2 (2-3-6-3-2) */
+#define W9968CF_DOUBLE_BUFFER  1 /* 0 disable, 1 enable double buffer */
+#define W9968CF_LARGEVIEW      1 /* 0 disable, 1 enable */
+#define W9968CF_UPSCALING      0 /* 0 disable, 1 enable */
+
+#define W9968CF_MONOCHROME     0 /* 0 not monochrome, 1 monochrome sensor */
+#define W9968CF_BRIGHTNESS     31000 /* from 0 to 65535 */
+#define W9968CF_HUE            32768 /* from 0 to 65535 */
+#define W9968CF_COLOUR         32768 /* from 0 to 65535 */
+#define W9968CF_CONTRAST       50000 /* from 0 to 65535 */
+#define W9968CF_WHITENESS      32768 /* from 0 to 65535 */
+
+#define W9968CF_AUTOBRIGHT     0 /* 0 disable, 1 enable automatic brightness */
+#define W9968CF_AUTOEXP        1 /* 0 disable, 1 enable automatic exposure */
+#define W9968CF_LIGHTFREQ      50 /* light frequency. 50Hz (Europe) or 60Hz */
+#define W9968CF_BANDINGFILTER  0 /* 0 disable, 1 enable banding filter */
+#define W9968CF_BACKLIGHT      0 /* 0 or 1, 1=object is lit from behind */
+#define W9968CF_MIRROR         0 /* 0 or 1 [don't] reverse image horizontally*/
+
+#define W9968CF_CLOCKDIV         -1 /* -1 = automatic clock divisor */
+#define W9968CF_DEF_CLOCKDIVISOR  0 /* default sensor clock divisor value */
+
+
+/****************************************************************************
+ * Globals                                                                  *
+ ****************************************************************************/
+
+#define W9968CF_MODULE_NAME     "V4L driver for W996[87]CF JPEG USB " \
+                                "Dual Mode Camera Chip"
+#define W9968CF_MODULE_VERSION  "1:1.33-basic"
+#define W9968CF_MODULE_AUTHOR   "(C) 2002-2004 Luca Risolia"
+#define W9968CF_AUTHOR_EMAIL    "<luca.risolia@studio.unibo.it>"
+#define W9968CF_MODULE_LICENSE  "GPL"
+
+static const struct usb_device_id winbond_id_table[] = {
+        {
+                /* Creative Labs Video Blaster WebCam Go Plus */
+                USB_DEVICE(0x041e, 0x4003),
+                .driver_info = (unsigned long)"w9968cf",
+        },
+        {
+                /* Generic W996[87]CF JPEG USB Dual Mode Camera */
+                USB_DEVICE(0x1046, 0x9967),
+                .driver_info = (unsigned long)"w9968cf",
+        },
+        { } /* terminating entry */
+};
+
+/* W996[87]CF camera models, internal ids: */
+enum w9968cf_model_id {
+        W9968CF_MOD_GENERIC = 1, /* Generic W996[87]CF based device */
+        W9968CF_MOD_CLVBWGP = 11,/*Creative Labs Video Blaster WebCam Go Plus*/
+        W9968CF_MOD_ADPVDMA = 21, /* Aroma Digi Pen VGA Dual Mode ADG-5000 */
+        W9986CF_MOD_AAU = 31,     /* AVerMedia AVerTV USB */
+        W9968CF_MOD_CLVBWG = 34,  /* Creative Labs Video Blaster WebCam Go */
+        W9968CF_MOD_LL = 37,      /* Lebon LDC-035A */
+        W9968CF_MOD_EEEMC = 40,   /* Ezonics EZ-802 EZMega Cam */
+        W9968CF_MOD_OOE = 42,     /* OmniVision OV8610-EDE */
+        W9968CF_MOD_ODPVDMPC = 43,/* OPCOM Digi Pen VGA Dual Mode Pen Camera */
+        W9968CF_MOD_PDPII = 46,   /* Pretec Digi Pen-II */
+        W9968CF_MOD_PDP480 = 49,  /* Pretec DigiPen-480 */
+};
+
+enum w9968cf_frame_status {
+        F_READY,            /* finished grabbing & ready to be read/synced */
+        F_GRABBING,         /* in the process of being grabbed into */
+        F_ERROR,            /* something bad happened while processing */
+        F_UNUSED            /* unused (no VIDIOCMCAPTURE) */
+};
+
+struct w9968cf_frame_t {
+        void* buffer;
+        unsigned long size;
+        u32 length;
+        int number;
+        enum w9968cf_frame_status status;
+        struct w9968cf_frame_t* next;
+        u8 queued;
+};
+
+enum w9968cf_vpp_flag {
+        VPP_NONE = 0x00,
+        VPP_UPSCALE = 0x01,
+        VPP_SWAP_YUV_BYTES = 0x02,
+        VPP_DECOMPRESSION = 0x04,
+        VPP_UYVY_TO_RGBX = 0x08,
+};
+
+static struct w9968cf_vpp_t* w9968cf_vpp;
+static DECLARE_MUTEX(w9968cf_vppmod_lock);
+static DECLARE_WAIT_QUEUE_HEAD(w9968cf_vppmod_wait);
+
+static LIST_HEAD(w9968cf_dev_list); /* head of V4L registered cameras list */
+static DECLARE_MUTEX(w9968cf_devlist_sem); /* semaphore for list traversal */
+
+static DECLARE_RWSEM(w9968cf_disconnect); /* prevent races with open() */
+
+/* Main device driver structure */
+struct w9968cf_device {
+        struct device dev; /* device structure */
+
+        enum w9968cf_model_id id;   /* private device identifier */
+
+        struct video_device* v4ldev; /* -> V4L structure */
+        struct list_head v4llist;    /* entry of the list of V4L cameras */
+
+        struct usb_device* usbdev;           /* -> main USB structure */
+        struct urb* urb[W9968CF_URBS];       /* -> USB request block structs */
+        void* transfer_buffer[W9968CF_URBS]; /* -> ISO transfer buffers */
+        u16* control_buffer;                 /* -> buffer for control req.*/
+        u16* data_buffer;                    /* -> data to send to the FSB */
+
+        struct w9968cf_frame_t frame[W9968CF_MAX_BUFFERS];
+        struct w9968cf_frame_t frame_tmp; /* temporary frame */
+        struct w9968cf_frame_t frame_vpp; /* helper frame.*/
+        struct w9968cf_frame_t* frame_current; /* -> frame being grabbed */
+        struct w9968cf_frame_t* requested_frame[W9968CF_MAX_BUFFERS];
+
+        u8 max_buffers,   /* number of requested buffers */
+           force_palette, /* yes=1/no=0 */
+           force_rgb,     /* read RGB instead of BGR, yes=1, no=0 */
+           double_buffer, /* hardware double buffering yes=1/no=0 */
+           clamping,      /* video data clamping yes=1/no=0 */
+           filter_type,   /* 0=disabled, 1=3 tap, 2=5 tap filter */
+           capture,       /* 0=disabled, 1=enabled */
+           largeview,     /* 0=disabled, 1=enabled */
+           decompression, /* 0=disabled, 1=forced, 2=allowed */
+           upscaling;     /* software image scaling, 0=enabled, 1=disabled */
+
+        struct video_picture picture; /* current picture settings */
+        struct video_window window;   /* current window settings */
+
+        u16 hw_depth,    /* depth (used by the chip) */
+            hw_palette,  /* palette (used by the chip) */
+            hw_width,    /* width (used by the chip) */
+            hw_height,   /* height (used by the chip) */
+            hs_polarity, /* 0=negative sync pulse, 1=positive sync pulse */
+            vs_polarity, /* 0=negative sync pulse, 1=positive sync pulse */
+            start_cropx, /* pixels from HS inactive edge to 1st cropped pixel*/
+            start_cropy; /* pixels from VS inactive edge to 1st cropped pixel*/
+
+        enum w9968cf_vpp_flag vpp_flag; /* post-processing routines in use */
+
+        u8 nbuffers,      /* number of allocated frame buffers */
+           altsetting,    /* camera alternate setting */
+           disconnected,  /* flag: yes=1, no=0 */
+           misconfigured, /* flag: yes=1, no=0 */
+           users,         /* flag: number of users holding the device */
+           streaming;     /* flag: yes=1, no=0 */
+
+        u8 sensor_initialized; /* flag: yes=1, no=0 */
+
+        /* Determined by the image sensor type: */
+        int sensor,       /* type of image sensor chip (CC_*) */
+            monochrome;   /* image sensor is (probably) monochrome */
+        u16 maxwidth,     /* maximum width supported by the image sensor */
+            maxheight,    /* maximum height supported by the image sensor */
+            minwidth,     /* minimum width supported by the image sensor */
+            minheight;    /* minimum height supported by the image sensor */
+        u8  auto_brt,     /* auto brightness enabled flag */
+            auto_exp,     /* auto exposure enabled flag */
+            backlight,    /* backlight exposure algorithm flag */
+            mirror,       /* image is reversed horizontally */
+            lightfreq,    /* power (lighting) frequency */
+            bandfilt;     /* banding filter enabled flag */
+        s8  clockdiv;     /* clock divisor */
+
+        /* I2C interface to kernel */
+        struct i2c_adapter i2c_adapter;
+        struct i2c_client* sensor_client;
+
+        /* Locks */
+        struct semaphore dev_sem,    /* for probe, disconnect,open and close */
+                         fileop_sem; /* for read and ioctl */
+        spinlock_t urb_lock,   /* for submit_urb() and unlink_urb() */
+                   flist_lock; /* for requested frame list accesses */
+        wait_queue_head_t open, wait_queue;
+
+        char command[16]; /* name of the program holding the device */
+};
+
+
+/****************************************************************************
+ * Macros for debugging                                                     *
+ ****************************************************************************/
+
+#undef DBG
+#undef KDBG
+#ifdef W9968CF_DEBUG
+/* For device specific debugging messages */
+#       define DBG(level, fmt, args...)                                       \
+{                                                                             \
+        if ( ((specific_debug) && (debug == (level))) ||                      \
+             ((!specific_debug) && (debug >= (level))) ) {                    \
+                if ((level) == 1)                                             \
+                        dev_err(&cam->dev, fmt "\n", ## args);                \
+                else if ((level) == 2 || (level) == 3)                        \
+                        dev_info(&cam->dev, fmt "\n", ## args);               \
+                else if ((level) == 4)                                        \
+                        dev_warn(&cam->dev, fmt "\n", ## args);               \
+                else if ((level) >= 5)                                        \
+                        dev_info(&cam->dev, "[%s:%d] " fmt "\n",              \
+                                 __FUNCTION__, __LINE__ , ## args);           \
+        }                                                                     \
+}
+/* For generic kernel (not device specific) messages */
+#       define KDBG(level, fmt, args...)                                      \
+{                                                                             \
+        if ( ((specific_debug) && (debug == (level))) ||                      \
+             ((!specific_debug) && (debug >= (level))) ) {                    \
+                if ((level) >= 1 && (level) <= 4)                             \
+                        pr_info("w9968cf: " fmt "\n", ## args);               \
+                else if ((level) >= 5)                                        \
+                        pr_debug("w9968cf: [%s:%d] " fmt "\n", __FUNCTION__,  \
+                                 __LINE__ , ## args);                         \
+        }                                                                     \
+}
+#else
+        /* Not debugging: nothing */
+#       define DBG(level, fmt, args...) do {;} while(0);
+#       define KDBG(level, fmt, args...) do {;} while(0);
+#endif
+
+#undef PDBG
+#define PDBG(fmt, args...)                                                    \
+dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args);
+
+#undef PDBGG
+#define PDBGG(fmt, args...) do {;} while(0); /* nothing: it's a placeholder */
+
+#endif /* _W9968CF_H_ */