V4L/DVB (3354e): bttv semaphore to mutex conversion

[linux-2.6] / drivers / media / video / bttv-driver.c

diff --git a/drivers/media/video/bttv-driver.c b/drivers/media/video/bttv-driver.c
index 0e697034678806bd3b2a89b5c18bb1e267e211cd..aa4c4c52188050ac1ff334b87e9dbe1a5a3d14d0 100644 (file)
--- a/drivers/media/video/bttv-driver.c
+++ b/drivers/media/video/bttv-driver.c
@@ -48,47 +48,46 @@
 unsigned int bttv_num;                 /* number of Bt848s in use */
 struct bttv bttvs[BTTV_MAX];
 
-unsigned int bttv_debug = 0;
+unsigned int bttv_debug;
 unsigned int bttv_verbose = 1;
-unsigned int bttv_gpio = 0;
+unsigned int bttv_gpio;
 
 /* config variables */
 #ifdef __BIG_ENDIAN
 static unsigned int bigendian=1;
 #else
-static unsigned int bigendian=0;
+static unsigned int bigendian;
 #endif
 static unsigned int radio[BTTV_MAX];
-static unsigned int irq_debug = 0;
+static unsigned int irq_debug;
 static unsigned int gbuffers = 8;
 static unsigned int gbufsize = 0x208000;
 
 static int video_nr = -1;
 static int radio_nr = -1;
 static int vbi_nr = -1;
-static int debug_latency = 0;
+static int debug_latency;
 
-static unsigned int fdsr = 0;
+static unsigned int fdsr;
 
 /* options */
-static unsigned int combfilter  = 0;
-static unsigned int lumafilter  = 0;
+static unsigned int combfilter;
+static unsigned int lumafilter;
 static unsigned int automute    = 1;
-static unsigned int chroma_agc  = 0;
+static unsigned int chroma_agc;
 static unsigned int adc_crush   = 1;
 static unsigned int whitecrush_upper = 0xCF;
 static unsigned int whitecrush_lower = 0x7F;
-static unsigned int vcr_hack    = 0;
-static unsigned int irq_iswitch = 0;
+static unsigned int vcr_hack;
+static unsigned int irq_iswitch;
 static unsigned int uv_ratio    = 50;
-static unsigned int full_luma_range = 0;
-static unsigned int coring      = 0;
+static unsigned int full_luma_range;
+static unsigned int coring;
 extern int no_overlay;
 
 /* API features (turn on/off stuff for testing) */
 static unsigned int v4l2        = 1;
 
-
 /* insmod args */
 module_param(bttv_verbose,      int, 0644);
 module_param(bttv_gpio,         int, 0644);
@@ -685,16 +684,16 @@ int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
                return 1;
 
        /* is it free? */
-       down(&btv->reslock);
+       mutex_lock(&btv->reslock);
        if (btv->resources & bit) {
                /* no, someone else uses it */
-               up(&btv->reslock);
+               mutex_unlock(&btv->reslock);
                return 0;
        }
        /* it's free, grab it */
        fh->resources  |= bit;
        btv->resources |= bit;
-       up(&btv->reslock);
+       mutex_unlock(&btv->reslock);
        return 1;
 }
 
@@ -717,10 +716,10 @@ void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
                /* trying to free ressources not allocated by us ... */
                printk("bttv: BUG! (btres)\n");
        }
-       down(&btv->reslock);
+       mutex_lock(&btv->reslock);
        fh->resources  &= ~bits;
        btv->resources &= ~bits;
-       up(&btv->reslock);
+       mutex_unlock(&btv->reslock);
 }
 
 /* ----------------------------------------------------------------------- */
@@ -1537,12 +1536,12 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
        case VIDIOCSFREQ:
        {
                unsigned long *freq = arg;
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                btv->freq=*freq;
                bttv_call_i2c_clients(btv,VIDIOCSFREQ,freq);
                if (btv->has_matchbox && btv->radio_user)
                        tea5757_set_freq(btv,*freq);
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
 
@@ -1572,10 +1571,10 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                if (v->mode >= BTTV_TVNORMS)
                        return -EINVAL;
 
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                set_tvnorm(btv,v->mode);
                bttv_call_i2c_clients(btv,cmd,v);
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
 
@@ -1612,17 +1611,17 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                if (v->norm >= BTTV_TVNORMS)
                        return -EINVAL;
 
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                if (channel == btv->input &&
                    v->norm == btv->tvnorm) {
                        /* nothing to do */
-                       up(&btv->lock);
+                       mutex_unlock(&btv->lock);
                        return 0;
                }
 
                btv->tvnorm = v->norm;
                set_input(btv,v->channel);
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
 
@@ -1635,14 +1634,14 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                v->flags |= VIDEO_AUDIO_MUTABLE;
                v->mode  = VIDEO_SOUND_MONO;
 
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                bttv_call_i2c_clients(btv,cmd,v);
 
                /* card specific hooks */
                if (btv->audio_hook)
                        btv->audio_hook(btv,v,0);
 
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
        case VIDIOCSAUDIO:
@@ -1653,7 +1652,7 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                if (audio >= bttv_tvcards[btv->c.type].audio_inputs)
                        return -EINVAL;
 
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                audio_mux(btv, (v->flags&VIDEO_AUDIO_MUTE) ? AUDIO_MUTE : AUDIO_UNMUTE);
                bttv_call_i2c_clients(btv,cmd,v);
 
@@ -1661,7 +1660,7 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                if (btv->audio_hook)
                        btv->audio_hook(btv,v,1);
 
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
 
@@ -1695,10 +1694,10 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                if (i == BTTV_TVNORMS)
                        return -EINVAL;
 
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                set_tvnorm(btv,i);
                i2c_vidiocschan(btv);
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
        case VIDIOC_QUERYSTD:
@@ -1756,9 +1755,9 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
 
                if (*i > bttv_tvcards[btv->c.type].video_inputs)
                        return -EINVAL;
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                set_input(btv,*i);
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
 
@@ -1770,7 +1769,7 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                        return -EINVAL;
                if (0 != t->index)
                        return -EINVAL;
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                memset(t,0,sizeof(*t));
                strcpy(t->name, "Television");
                t->type       = V4L2_TUNER_ANALOG_TV;
@@ -1805,7 +1804,7 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                        }
                }
                /* FIXME: fill capability+audmode */
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
        case VIDIOC_S_TUNER:
@@ -1816,7 +1815,7 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                        return -EINVAL;
                if (0 != t->index)
                        return -EINVAL;
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                {
                        struct video_audio va;
                        memset(&va, 0, sizeof(struct video_audio));
@@ -1833,7 +1832,7 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                        if (btv->audio_hook)
                                btv->audio_hook(btv,&va,1);
                }
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
 
@@ -1854,12 +1853,12 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
                        return -EINVAL;
                if (unlikely (f->type != V4L2_TUNER_ANALOG_TV))
                        return -EINVAL;
-               down(&btv->lock);
+               mutex_lock(&btv->lock);
                btv->freq = f->frequency;
                bttv_call_i2c_clients(btv,VIDIOCSFREQ,&btv->freq);
                if (btv->has_matchbox && btv->radio_user)
                        tea5757_set_freq(btv,btv->freq);
-               up(&btv->lock);
+               mutex_unlock(&btv->lock);
                return 0;
        }
        case VIDIOC_LOG_STATUS:
@@ -3157,7 +3156,7 @@ static int radio_open(struct inode *inode, struct file *file)
                return -ENODEV;
 
        dprintk("bttv%d: open called (radio)\n",btv->c.nr);
-       down(&btv->lock);
+       mutex_lock(&btv->lock);
 
        btv->radio_user++;
 
@@ -3166,7 +3165,7 @@ static int radio_open(struct inode *inode, struct file *file)
        bttv_call_i2c_clients(btv,AUDC_SET_RADIO,&btv->tuner_type);
        audio_mux(btv,AUDIO_RADIO);
 
-       up(&btv->lock);
+       mutex_unlock(&btv->lock);
        return 0;
 }
 
@@ -3921,8 +3920,8 @@ static int __devinit bttv_probe(struct pci_dev *dev,
        sprintf(btv->c.name,"bttv%d",btv->c.nr);
 
        /* initialize structs / fill in defaults */
-       init_MUTEX(&btv->lock);
-       init_MUTEX(&btv->reslock);
+       mutex_init(&btv->lock);
+       mutex_init(&btv->reslock);
        spin_lock_init(&btv->s_lock);
        spin_lock_init(&btv->gpio_lock);
        init_waitqueue_head(&btv->gpioq);