From 7a778ee4b7ec09a1f5b2185c9cceee3910dfbdf2 Mon Sep 17 00:00:00 2001 From: Thomas Vander Stichele Date: Sun, 14 Mar 2004 22:34:33 +0000 Subject: gst-indent Original commit message from CVS: gst-indent --- sys/qcam/qcam-Linux.c | 202 ++++++++++++++++++++++++++++---------------------- 1 file changed, 114 insertions(+), 88 deletions(-) (limited to 'sys/qcam/qcam-Linux.c') diff --git a/sys/qcam/qcam-Linux.c b/sys/qcam/qcam-Linux.c index e73933d9..2c959e72 100644 --- a/sys/qcam/qcam-Linux.c +++ b/sys/qcam/qcam-Linux.c @@ -48,22 +48,50 @@ OTHER DEALINGS IN THE SOFTWARE. #include "qcam.h" #include "qcam-Linux.h" -int __inline__ read_lpstatus(const struct qcam *q) { return inb(q->port+1); } -int read_lpcontrol(const struct qcam *q) { return inb(q->port+2); } -int read_lpdata(const struct qcam *q) { return inb(q->port); } -void write_lpdata(const struct qcam *q, int d) { outb(d,q->port); } -void write_lpcontrol(const struct qcam *q, int d) { outb(d,q->port+2); } +int __inline__ +read_lpstatus (const struct qcam *q) +{ + return inb (q->port + 1); +} + +int +read_lpcontrol (const struct qcam *q) +{ + return inb (q->port + 2); +} + +int +read_lpdata (const struct qcam *q) +{ + return inb (q->port); +} -int enable_ports(const struct qcam *q) +void +write_lpdata (const struct qcam *q, int d) { - if(q->port<0x278) return 1; /* Better safe than sorry */ - if(q->port>0x3bc) return 1; - return (ioperm(q->port, 3, 1)); + outb (d, q->port); } -int disable_ports(const struct qcam *q) +void +write_lpcontrol (const struct qcam *q, int d) { - return (ioperm(q->port, 3, 0)); + outb (d, q->port + 2); +} + +int +enable_ports (const struct qcam *q) +{ + if (q->port < 0x278) + return 1; /* Better safe than sorry */ + if (q->port > 0x3bc) + return 1; + return (ioperm (q->port, 3, 1)); +} + +int +disable_ports (const struct qcam *q) +{ + return (ioperm (q->port, 3, 0)); } /* Lock port. This is currently sub-optimal, and is begging to be @@ -81,121 +109,118 @@ int disable_ports(const struct qcam *q) * multiple processes (eg. qcam) taking "snapshots" can peacefully coexist. * - Dave Plonka (plonka@carroll1.cc.edu) */ -int qc_lock_wait(struct qcam *q, int wait) +int +qc_lock_wait (struct qcam *q, int wait) { #if 1 static struct flock sfl; - if (-1 == q->fd) /* we've yet to open the lock file */ - { - static char lockfile[128]; - - sprintf(lockfile,"/var/run/LOCK.qcam.0x%x",q->port); - if (-1 == (q->fd = open(lockfile, O_WRONLY | O_CREAT, 0666))) - { - perror("open"); - return 1; - } + if (-1 == q->fd) { /* we've yet to open the lock file */ + static char lockfile[128]; + sprintf (lockfile, "/var/run/LOCK.qcam.0x%x", q->port); + if (-1 == (q->fd = open (lockfile, O_WRONLY | O_CREAT, 0666))) { + perror ("open"); + return 1; + } #ifdef TESTING - fprintf(stderr, "%s - %d: %s open(2)ed\n", __FILE__, __LINE__, lockfile); + fprintf (stderr, "%s - %d: %s open(2)ed\n", __FILE__, __LINE__, lockfile); #endif - /* initialize the l_type memver to lock the file exclusively */ - sfl.l_type = F_WRLCK; + /* initialize the l_type memver to lock the file exclusively */ + sfl.l_type = F_WRLCK; } - #ifdef TESTING - if (0 != fcntl(q->fd, F_SETLK, &sfl)) /* non-blocking set lock */ + if (0 != fcntl (q->fd, F_SETLK, &sfl)) /* non-blocking set lock */ #else - if (0 != fcntl(q->fd, wait? F_SETLKW : F_SETLK, &sfl)) + if (0 != fcntl (q->fd, wait ? F_SETLKW : F_SETLK, &sfl)) #endif { #ifdef TESTING - perror("fcntl"); - if (EAGAIN != errno || !wait) return 1; - - fprintf(stderr, "%s - %d: waiting for exclusive lock on fd %d...\n", __FILE__, __LINE__, q->fd); + perror ("fcntl"); + if (EAGAIN != errno || !wait) + return 1; + + fprintf (stderr, "%s - %d: waiting for exclusive lock on fd %d...\n", + __FILE__, __LINE__, q->fd); - if (0 != fcntl(q->fd, F_SETLKW, &sfl)) /* "blocking" set lock */ + if (0 != fcntl (q->fd, F_SETLKW, &sfl)) /* "blocking" set lock */ #endif - { - perror("fcntl"); - return 1; - } + { + perror ("fcntl"); + return 1; + } } - #ifdef TESTING - fprintf(stderr, "%s - %d: fd %d locked exclusively\n", __FILE__, __LINE__, q->fd); + fprintf (stderr, "%s - %d: fd %d locked exclusively\n", __FILE__, __LINE__, + q->fd); #endif #else char lockfile[128], tmp[128]; struct stat statbuf; - sprintf(lockfile,"/var/run/LOCK.qcam.0x%x",q->port); - sprintf(tmp,"%s-%d",lockfile,getpid()); + sprintf (lockfile, "/var/run/LOCK.qcam.0x%x", q->port); + sprintf (tmp, "%s-%d", lockfile, getpid ()); - if ((creat(tmp,0)==-1) || - (link(tmp,lockfile)==-1) || - (stat(tmp,&statbuf)==-1) || - (statbuf.st_nlink==1)) - { + if ((creat (tmp, 0) == -1) || + (link (tmp, lockfile) == -1) || + (stat (tmp, &statbuf) == -1) || (statbuf.st_nlink == 1)) { #ifdef DEBUGQC - perror("QuickCam Locked"); - if(unlink(tmp)==-1) - perror("Error unlinking temp file."); + perror ("QuickCam Locked"); + if (unlink (tmp) == -1) + perror ("Error unlinking temp file."); #else - unlink(tmp); + unlink (tmp); #endif return 1; } - - unlink(tmp); - if (chown(lockfile,getuid(),getgid())==-1) - perror("Chown problems"); + + unlink (tmp); + if (chown (lockfile, getuid (), getgid ()) == -1) + perror ("Chown problems"); #endif return 0; } -int qc_lock(struct qcam *q) +int +qc_lock (struct qcam *q) { #if 1 - return qc_lock_wait(q, 1 /*wait*/); + return qc_lock_wait (q, 1 /*wait */ ); #else - return qc_lock_wait(q, 0 /*don't wait*/); + return qc_lock_wait (q, 0 /*don't wait */ ); #endif } /* Unlock port */ -int qc_unlock(struct qcam *q) +int +qc_unlock (struct qcam *q) { static struct flock sfl; + #if 1 - if (-1 == q->fd) - { /* port was not locked */ - return 1; + if (-1 == q->fd) { /* port was not locked */ + return 1; } /* clear the exclusive lock */ sfl.l_type = F_UNLCK; - if (0 != fcntl(q->fd, F_SETLK, &sfl)) - { - perror("fcntl"); - return 1; + if (0 != fcntl (q->fd, F_SETLK, &sfl)) { + perror ("fcntl"); + return 1; } - #ifdef TESTING - fprintf(stderr, "%s - %d: fd %d unlocked\n", __FILE__, __LINE__, q->fd); + fprintf (stderr, "%s - %d: fd %d unlocked\n", __FILE__, __LINE__, q->fd); #endif #else char lockfile[128]; - sprintf(lockfile,"/var/run/LOCK.qcam.0x%x",q->port); - unlink(lockfile); /* What would I do with an error? */ + sprintf (lockfile, "/var/run/LOCK.qcam.0x%x", q->port); + unlink (lockfile); /* What would I do with an error? */ #endif return 0; @@ -205,28 +230,28 @@ int qc_unlock(struct qcam *q) /* Probe for camera. Returns 0 if found, 1 if not found, sets q->port.*/ -int qc_probe(struct qcam *q) +int +qc_probe (struct qcam *q) { - int ioports[]={0x378, 0x278, 0x3bc,0}; - int i=0; + int ioports[] = { 0x378, 0x278, 0x3bc, 0 }; + int i = 0; /* Attempt to get permission to access IO ports. Must be root */ - while(ioports[i]!=0) { - q->port=ioports[i++]; + while (ioports[i] != 0) { + q->port = ioports[i++]; - if (qc_open(q)) { - perror("Can't get I/O permission"); - exit(1); + if (qc_open (q)) { + perror ("Can't get I/O permission"); + exit (1); } - if(qc_detect(q)) { - fprintf(stderr,"QuickCam detected at 0x%x\n",q->port); - qc_close(q); - return(0); - } - else - qc_close(q); + if (qc_detect (q)) { + fprintf (stderr, "QuickCam detected at 0x%x\n", q->port); + qc_close (q); + return (0); + } else + qc_close (q); } return 1; @@ -240,10 +265,11 @@ usleep(0)'s, and that's too slow -- qc_start was taking over a second to run. This seems to help, but if anyone has a good speed-independent pause routine, please tell me. -- Scott */ -void qc_wait(int val) +void +qc_wait (int val) { int i; - - while(val--) - for(i=0;i<50000;i++); + + while (val--) + for (i = 0; i < 50000; i++); } -- cgit v1.2.1