This commit was manufactured by cvs2svn to create branch 'vserver'.
[linux-2.6.git] / drivers / media / video / usbvision / usbvision.h
diff --git a/drivers/media/video/usbvision/usbvision.h b/drivers/media/video/usbvision/usbvision.h
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+/*
+ * USBVISION.H
+ *  usbvision header file
+ *
+ * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
+ *                         Dwaine Garden <dwainegarden@rogers.com>
+ *
+ *
+ * Report problems to v4l MailingList : http://www.redhat.com/mailman/listinfo/video4linux-list
+ *
+ * This module is part of usbvision driver project.
+ * Updates to driver completed by Dwaine P. Garden
+ * v4l2 conversion by Thierry Merle <thierry.merle@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
+ * (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 __LINUX_USBVISION_H
+#define __LINUX_USBVISION_H
+
+#include <linux/list.h>
+#include <linux/usb.h>
+#include <media/v4l2-common.h>
+#include <media/tuner.h>
+#include <linux/videodev2.h>
+
+#define USBVISION_DEBUG                /* Turn on debug messages */
+
+#ifndef VID_HARDWARE_USBVISION
+       #define VID_HARDWARE_USBVISION 34   /* USBVision Video Grabber */
+#endif
+
+#define USBVISION_PWR_REG              0x00
+       #define USBVISION_SSPND_EN              (1 << 1)
+       #define USBVISION_RES2                  (1 << 2)
+       #define USBVISION_PWR_VID               (1 << 5)
+       #define USBVISION_E2_EN                 (1 << 7)
+#define USBVISION_CONFIG_REG           0x01
+#define USBVISION_ADRS_REG             0x02
+#define USBVISION_ALTER_REG            0x03
+#define USBVISION_FORCE_ALTER_REG      0x04
+#define USBVISION_STATUS_REG           0x05
+#define USBVISION_IOPIN_REG            0x06
+       #define USBVISION_IO_1                  (1 << 0)
+       #define USBVISION_IO_2                  (1 << 1)
+       #define USBVISION_AUDIO_IN              0
+       #define USBVISION_AUDIO_TV              1
+       #define USBVISION_AUDIO_RADIO           2
+       #define USBVISION_AUDIO_MUTE            3
+#define USBVISION_SER_MODE             0x07
+#define USBVISION_SER_ADRS             0x08
+#define USBVISION_SER_CONT             0x09
+#define USBVISION_SER_DAT1             0x0A
+#define USBVISION_SER_DAT2             0x0B
+#define USBVISION_SER_DAT3             0x0C
+#define USBVISION_SER_DAT4             0x0D
+#define USBVISION_EE_DATA              0x0E
+#define USBVISION_EE_LSBAD             0x0F
+#define USBVISION_EE_CONT              0x10
+#define USBVISION_DRM_CONT                     0x12
+       #define USBVISION_REF                   (1 << 0)
+       #define USBVISION_RES_UR                (1 << 2)
+       #define USBVISION_RES_FDL               (1 << 3)
+       #define USBVISION_RES_VDW               (1 << 4)
+#define USBVISION_DRM_PRM1             0x13
+#define USBVISION_DRM_PRM2             0x14
+#define USBVISION_DRM_PRM3             0x15
+#define USBVISION_DRM_PRM4             0x16
+#define USBVISION_DRM_PRM5             0x17
+#define USBVISION_DRM_PRM6             0x18
+#define USBVISION_DRM_PRM7             0x19
+#define USBVISION_DRM_PRM8             0x1A
+#define USBVISION_VIN_REG1             0x1B
+       #define USBVISION_8_422_SYNC            0x01
+       #define USBVISION_16_422_SYNC           0x02
+       #define USBVISION_VSNC_POL              (1 << 3)
+       #define USBVISION_HSNC_POL              (1 << 4)
+       #define USBVISION_FID_POL               (1 << 5)
+       #define USBVISION_HVALID_PO             (1 << 6)
+       #define USBVISION_VCLK_POL              (1 << 7)
+#define USBVISION_VIN_REG2             0x1C
+       #define USBVISION_AUTO_FID              (1 << 0)
+       #define USBVISION_NONE_INTER            (1 << 1)
+       #define USBVISION_NOHVALID              (1 << 2)
+       #define USBVISION_UV_ID                 (1 << 3)
+       #define USBVISION_FIX_2C                (1 << 4)
+       #define USBVISION_SEND_FID              (1 << 5)
+       #define USBVISION_KEEP_BLANK            (1 << 7)
+#define USBVISION_LXSIZE_I             0x1D
+#define USBVISION_MXSIZE_I             0x1E
+#define USBVISION_LYSIZE_I             0x1F
+#define USBVISION_MYSIZE_I             0x20
+#define USBVISION_LX_OFFST             0x21
+#define USBVISION_MX_OFFST             0x22
+#define USBVISION_LY_OFFST             0x23
+#define USBVISION_MY_OFFST             0x24
+#define USBVISION_FRM_RATE             0x25
+#define USBVISION_LXSIZE_O             0x26
+#define USBVISION_MXSIZE_O             0x27
+#define USBVISION_LYSIZE_O             0x28
+#define USBVISION_MYSIZE_O             0x29
+#define USBVISION_FILT_CONT            0x2A
+#define USBVISION_VO_MODE              0x2B
+#define USBVISION_INTRA_CYC            0x2C
+#define USBVISION_STRIP_SZ             0x2D
+#define USBVISION_FORCE_INTRA          0x2E
+#define USBVISION_FORCE_UP             0x2F
+#define USBVISION_BUF_THR              0x30
+#define USBVISION_DVI_YUV              0x31
+#define USBVISION_AUDIO_CONT           0x32
+#define USBVISION_AUD_PK_LEN           0x33
+#define USBVISION_BLK_PK_LEN           0x34
+#define USBVISION_PCM_THR1             0x38
+#define USBVISION_PCM_THR2             0x39
+#define USBVISION_DIST_THR_L           0x3A
+#define USBVISION_DIST_THR_H           0x3B
+#define USBVISION_MAX_DIST_L           0x3C
+#define USBVISION_MAX_DIST_H           0x3D
+#define USBVISION_OP_CODE              0x33
+
+#define MAX_BYTES_PER_PIXEL            4
+
+#define MIN_FRAME_WIDTH                        64
+#define MAX_USB_WIDTH                  320  //384
+#define MAX_FRAME_WIDTH                        320  //384                      /*streching sometimes causes crashes*/
+
+#define MIN_FRAME_HEIGHT               48
+#define MAX_USB_HEIGHT                 240  //288
+#define MAX_FRAME_HEIGHT               240  //288                      /*Streching sometimes causes crashes*/
+
+#define MAX_FRAME_SIZE                 (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * MAX_BYTES_PER_PIXEL)
+#define USBVISION_CLIPMASK_SIZE                (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) //bytesize of clipmask
+
+#define USBVISION_URB_FRAMES           32
+#define USBVISION_MAX_ISOC_PACKET_SIZE         959                     // NT1003 Specs Document says 1023
+
+#define USBVISION_NUM_HEADERMARKER     20
+#define USBVISION_NUMFRAMES            3  /* Maximum number of frames an application can get */
+#define USBVISION_NUMSBUF              2 /* Dimensioning the USB S buffering */
+
+#define USBVISION_POWEROFF_TIME                3 * (HZ)                // 3 seconds
+
+
+#define FRAMERATE_MIN  0
+#define FRAMERATE_MAX  31
+
+enum {
+       ISOC_MODE_YUV422 = 0x03,
+       ISOC_MODE_YUV420 = 0x14,
+       ISOC_MODE_COMPRESS = 0x60,
+};
+
+/* This macro restricts an int variable to an inclusive range */
+#define RESTRICT_TO_RANGE(v,mi,ma) { if ((v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); }
+
+/*
+ * We use macros to do YUV -> RGB conversion because this is
+ * very important for speed and totally unimportant for size.
+ *
+ * YUV -> RGB Conversion
+ * ---------------------
+ *
+ * B = 1.164*(Y-16)                + 2.018*(V-128)
+ * G = 1.164*(Y-16) - 0.813*(U-128) - 0.391*(V-128)
+ * R = 1.164*(Y-16) + 1.596*(U-128)
+ *
+ * If you fancy integer arithmetics (as you should), hear this:
+ *
+ * 65536*B = 76284*(Y-16)                + 132252*(V-128)
+ * 65536*G = 76284*(Y-16) -  53281*(U-128) -  25625*(V-128)
+ * 65536*R = 76284*(Y-16) + 104595*(U-128)
+ *
+ * Make sure the output values are within [0..255] range.
+ */
+#define LIMIT_RGB(x) (((x) < 0) ? 0 : (((x) > 255) ? 255 : (x)))
+#define YUV_TO_RGB_BY_THE_BOOK(my,mu,mv,mr,mg,mb) { \
+    int mm_y, mm_yc, mm_u, mm_v, mm_r, mm_g, mm_b; \
+    mm_y = (my) - 16;  \
+    mm_u = (mu) - 128; \
+    mm_v = (mv) - 128; \
+    mm_yc= mm_y * 76284; \
+    mm_b = (mm_yc              + 132252*mm_v   ) >> 16; \
+    mm_g = (mm_yc -  53281*mm_u -  25625*mm_v  ) >> 16; \
+    mm_r = (mm_yc + 104595*mm_u                        ) >> 16; \
+    mb = LIMIT_RGB(mm_b); \
+    mg = LIMIT_RGB(mm_g); \
+    mr = LIMIT_RGB(mm_r); \
+}
+
+/* Debugging aid */
+#define USBVISION_SAY_AND_WAIT(what) { \
+       wait_queue_head_t wq; \
+       init_waitqueue_head(&wq); \
+       printk(KERN_INFO "Say: %s\n", what); \
+       interruptible_sleep_on_timeout (&wq, HZ*3); \
+}
+
+/*
+ * This macro checks if usbvision is still operational. The 'usbvision'
+ * pointer must be valid, usbvision->dev must be valid, we are not
+ * removing the device and the device has not erred on us.
+ */
+#define USBVISION_IS_OPERATIONAL(udevice) (\
+       (udevice != NULL) && \
+       ((udevice)->dev != NULL) && \
+       ((udevice)->last_error == 0) && \
+       (!(udevice)->remove_pending))
+
+#define I2C_USB_ADAP_MAX       16
+
+/* ----------------------------------------------------------------- */
+/* usbvision video structures                                        */
+/* ----------------------------------------------------------------- */
+enum ScanState {
+       ScanState_Scanning,     /* Scanning for header */
+       ScanState_Lines         /* Parsing lines */
+};
+
+/* Completion states of the data parser */
+enum ParseState {
+       ParseState_Continue,    /* Just parse next item */
+       ParseState_NextFrame,   /* Frame done, send it to V4L */
+       ParseState_Out,         /* Not enough data for frame */
+       ParseState_EndParse     /* End parsing */
+};
+
+enum FrameState {
+       FrameState_Unused,      /* Unused (no MCAPTURE) */
+       FrameState_Ready,       /* Ready to start grabbing */
+       FrameState_Grabbing,    /* In the process of being grabbed into */
+       FrameState_Done,        /* Finished grabbing, but not been synced yet */
+       FrameState_DoneHold,    /* Are syncing or reading */
+       FrameState_Error,       /* Something bad happened while processing */
+};
+
+/* stream states */
+enum StreamState {
+       Stream_Off,             /* Driver streaming is completely OFF */
+       Stream_Idle,            /* Driver streaming is ready to be put ON by the application */
+       Stream_Interrupt,       /* Driver streaming must be interrupted */
+       Stream_On,              /* Driver streaming is put ON by the application */
+};
+
+enum IsocState {
+       IsocState_InFrame,      /* Isoc packet is member of frame */
+       IsocState_NoFrame,      /* Isoc packet is not member of any frame */
+};
+
+struct usb_device;
+
+struct usbvision_sbuf {
+       char *data;
+       struct urb *urb;
+};
+
+#define USBVISION_MAGIC_1                              0x55
+#define USBVISION_MAGIC_2                              0xAA
+#define USBVISION_HEADER_LENGTH                        0x0c
+#define USBVISION_SAA7111_ADDR                 0x48
+#define USBVISION_SAA7113_ADDR                 0x4a
+#define USBVISION_IIC_LRACK                    0x20
+#define USBVISION_IIC_LRNACK                   0x30
+#define USBVISION_FRAME_FORMAT_PARAM_INTRA     (1<<7)
+
+struct usbvision_v4l2_format_st {
+       int             supported;
+       int             bytes_per_pixel;
+       int             depth;
+       int             format;
+       char            *desc;
+};
+#define USBVISION_SUPPORTED_PALETTES ARRAY_SIZE(usbvision_v4l2_format)
+
+struct usbvision_frame_header {
+       unsigned char magic_1;                          /* 0 magic */
+       unsigned char magic_2;                          /* 1  magic */
+       unsigned char headerLength;                     /* 2 */
+       unsigned char frameNum;                         /* 3 */
+       unsigned char framePhase;                       /* 4 */
+       unsigned char frameLatency;                     /* 5 */
+       unsigned char dataFormat;                       /* 6 */
+       unsigned char formatParam;                      /* 7 */
+       unsigned char frameWidthLo;                     /* 8 */
+       unsigned char frameWidthHi;                     /* 9 */
+       unsigned char frameHeightLo;                    /* 10 */
+       unsigned char frameHeightHi;                    /* 11 */
+       __u16 frameWidth;                               /* 8 - 9 after endian correction*/
+       __u16 frameHeight;                              /* 10 - 11 after endian correction*/
+};
+
+/* tvnorms */
+struct usbvision_tvnorm {
+       char *name;
+       v4l2_std_id id;
+       /* mode for saa7113h */
+       int mode;
+};
+
+struct usbvision_frame {
+       char *data;                                     /* Frame buffer */
+       struct usbvision_frame_header isocHeader;       /* Header from stream */
+
+       int width;                                      /* Width application is expecting */
+       int height;                                     /* Height */
+       int index;                                      /* Frame index */
+       int frmwidth;                                   /* Width the frame actually is */
+       int frmheight;                                  /* Height */
+
+       volatile int grabstate;                         /* State of grabbing */
+       int scanstate;                                  /* State of scanning */
+
+       struct list_head frame;
+
+       int curline;                                    /* Line of frame we're working on */
+
+       long scanlength;                                /* uncompressed, raw data length of frame */
+       long bytes_read;                                /* amount of scanlength that has been read from data */
+       struct usbvision_v4l2_format_st v4l2_format;    /* format the user needs*/
+       int v4l2_linesize;                              /* bytes for one videoline*/
+       struct timeval timestamp;
+       int sequence;                                   // How many video frames we send to user
+};
+
+#define CODEC_SAA7113  7113
+#define CODEC_SAA7111  7111
+#define BRIDGE_NT1003  1003
+#define BRIDGE_NT1004  1004
+#define BRIDGE_NT1005   1005
+
+struct usbvision_device_data_st {
+       int idVendor;
+       int idProduct;
+       int Interface; /* to handle special interface number like BELKIN and Hauppauge WinTV-USB II */
+       int Codec;
+       int VideoChannels;
+       __u64 VideoNorm;
+       int AudioChannels;
+       int Radio;
+       int vbi;
+       int Tuner;
+       int TunerType;
+       int Vin_Reg1;
+       int Vin_Reg2;
+       int X_Offset;
+       int Y_Offset;
+       int Dvi_yuv;
+       char *ModelString;
+};
+
+/* Declared on usbvision-cards.c */
+extern struct usbvision_device_data_st usbvision_device_data[];
+extern struct usb_device_id usbvision_table[];
+
+struct usb_usbvision {
+       struct video_device *vdev;                                      /* Video Device */
+       struct video_device *rdev;                                      /* Radio Device */
+       struct video_device *vbi;                                       /* VBI Device   */
+
+       /* i2c Declaration Section*/
+       struct i2c_adapter i2c_adap;
+       struct i2c_client i2c_client;
+
+       struct urb *ctrlUrb;
+       unsigned char ctrlUrbBuffer[8];
+       int ctrlUrbBusy;
+       struct usb_ctrlrequest ctrlUrbSetup;
+       wait_queue_head_t ctrlUrb_wq;                                   // Processes waiting
+       struct semaphore ctrlUrbLock;
+
+       /* configuration part */
+       int have_tuner;
+       int tuner_type;
+       int tuner_addr;
+       int bridgeType;                                                 // NT1003, NT1004, NT1005
+       int channel;
+       int radio;
+       int video_inputs;                                               // # of inputs
+       unsigned long freq;
+       int AudioMute;
+       int AudioChannel;
+       int isocMode;                                                   // format of video data for the usb isoc-transfer
+       unsigned int nr;                                                // Number of the device
+
+       /* Device structure */
+       struct usb_device *dev;
+       unsigned char iface;                                            /* Video interface number */
+       unsigned char ifaceAltActive, ifaceAltInactive;                 /* Alt settings */
+       unsigned char Vin_Reg2_Preset;
+       struct semaphore lock;
+       struct timer_list powerOffTimer;
+       struct work_struct powerOffWork;
+       int power;                                                      /* is the device powered on? */
+       int user;                                                       /* user count for exclusive use */
+       int initialized;                                                /* Had we already sent init sequence? */
+       int DevModel;                                                   /* What type of USBVISION device we got? */
+       enum StreamState streaming;                                     /* Are we streaming Isochronous? */
+       int last_error;                                                 /* What calamity struck us? */
+       int curwidth;                                                   /* width of the frame the device is currently set to*/
+       int curheight;                                                  /* height of the frame the device is currently set to*/
+       int stretch_width;                                              /* stretch-factor for frame width (from usb to screen)*/
+       int stretch_height;                                             /* stretch-factor for frame height (from usb to screen)*/
+       char *fbuf;                                                     /* Videodev buffer area for mmap*/
+       int max_frame_size;                                             /* Bytes in one video frame */
+       int fbuf_size;                                                  /* Videodev buffer size */
+       spinlock_t queue_lock;                                          /* spinlock for protecting mods on inqueue and outqueue */
+       struct list_head inqueue, outqueue;                             /* queued frame list and ready to dequeue frame list */
+       wait_queue_head_t wait_frame;                                   /* Processes waiting */
+       wait_queue_head_t wait_stream;                                  /* Processes waiting */
+       struct usbvision_frame *curFrame;                               // pointer to current frame, set by usbvision_find_header
+       struct usbvision_frame frame[USBVISION_NUMFRAMES];              // frame buffer
+       struct usbvision_sbuf sbuf[USBVISION_NUMSBUF];                  // S buffering
+       volatile int remove_pending;                                    /* If set then about to exit */
+
+       /* Scratch space from the Isochronous Pipe.*/
+       unsigned char *scratch;
+       int scratch_read_ptr;
+       int scratch_write_ptr;
+       int scratch_headermarker[USBVISION_NUM_HEADERMARKER];
+       int scratch_headermarker_read_ptr;
+       int scratch_headermarker_write_ptr;
+       enum IsocState isocstate;
+       struct usbvision_v4l2_format_st palette;
+
+       struct v4l2_capability vcap;                                    /* Video capabilities */
+       unsigned int ctl_input;                                         /* selected input */
+       struct usbvision_tvnorm *tvnorm;                                /* selected tv norm */
+       unsigned char video_endp;                                       /* 0x82 for USBVISION devices based */
+
+       // Decompression stuff:
+       unsigned char *IntraFrameBuffer;                                /* Buffer for reference frame */
+       int BlockPos;                                                   //for test only
+       int requestIntra;                                               // 0 = normal; 1 = intra frame is requested;
+       int lastIsocFrameNum;                                           // check for lost isoc frames
+       int isocPacketSize;                                             // need to calculate usedBandwidth
+       int usedBandwidth;                                              // used bandwidth 0-100%, need to set comprLevel
+       int comprLevel;                                                 // How strong (100) or weak (0) is compression
+       int lastComprLevel;                                             // How strong (100) or weak (0) was compression
+       int usb_bandwidth;                                              /* Mbit/s */
+
+       /* Statistics that can be overlayed on the screen */
+       unsigned long isocUrbCount;                     // How many URBs we received so far
+       unsigned long urb_length;                       /* Length of last URB */
+       unsigned long isocDataCount;                    /* How many bytes we received */
+       unsigned long header_count;                     /* How many frame headers we found */
+       unsigned long scratch_ovf_count;                /* How many times we overflowed scratch */
+       unsigned long isocSkipCount;                    /* How many empty ISO packets received */
+       unsigned long isocErrCount;                     /* How many bad ISO packets received */
+       unsigned long isocPacketCount;                  // How many packets we totally got
+       unsigned long timeInIrq;                        // How long do we need for interrupt
+       int isocMeasureBandwidthCount;
+       int frame_num;                                  // How many video frames we send to user
+       int maxStripLen;                                // How big is the biggest strip
+       int comprBlockPos;
+       int stripLenErrors;                             // How many times was BlockPos greater than StripLen
+       int stripMagicErrors;
+       int stripLineNumberErrors;
+       int ComprBlockTypes[4];
+};
+
+
+/* --------------------------------------------------------------- */
+/* defined in usbvision-i2c.c                                      */
+/* i2c-algo-usb declaration                                        */
+/* --------------------------------------------------------------- */
+
+int usbvision_i2c_usb_del_bus(struct i2c_adapter *);
+
+
+/* ----------------------------------------------------------------------- */
+/* usbvision specific I2C functions                                        */
+/* ----------------------------------------------------------------------- */
+int usbvision_init_i2c(struct usb_usbvision *usbvision);
+void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd,void *arg);
+
+/* defined in usbvision-core.c                                      */
+void usbvision_rvfree(void *mem, unsigned long size);
+int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg);
+int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
+                       unsigned char value);
+
+int usbvision_frames_alloc(struct usb_usbvision *usbvision);
+void usbvision_frames_free(struct usb_usbvision *usbvision);
+int usbvision_scratch_alloc(struct usb_usbvision *usbvision);
+void usbvision_scratch_free(struct usb_usbvision *usbvision);
+int usbvision_decompress_alloc(struct usb_usbvision *usbvision);
+void usbvision_decompress_free(struct usb_usbvision *usbvision);
+
+int usbvision_setup(struct usb_usbvision *usbvision,int format);
+int usbvision_init_isoc(struct usb_usbvision *usbvision);
+int usbvision_restart_isoc(struct usb_usbvision *usbvision);
+void usbvision_stop_isoc(struct usb_usbvision *usbvision);
+
+int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel);
+int usbvision_audio_off(struct usb_usbvision *usbvision);
+
+int usbvision_begin_streaming(struct usb_usbvision *usbvision);
+void usbvision_empty_framequeues(struct usb_usbvision *dev);
+int usbvision_stream_interrupt(struct usb_usbvision *dev);
+
+int usbvision_muxsel(struct usb_usbvision *usbvision, int channel);
+int usbvision_set_input(struct usb_usbvision *usbvision);
+int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height);
+
+void usbvision_init_powerOffTimer(struct usb_usbvision *usbvision);
+void usbvision_set_powerOffTimer(struct usb_usbvision *usbvision);
+void usbvision_reset_powerOffTimer(struct usb_usbvision *usbvision);
+int usbvision_power_off(struct usb_usbvision *usbvision);
+int usbvision_power_on(struct usb_usbvision *usbvision);
+
+#endif                                                                 /* __LINUX_USBVISION_H */
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */