diff options
Diffstat (limited to 'drivers/media/radio/radio-aztech.c')
| -rw-r--r-- | drivers/media/radio/radio-aztech.c | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c index 83bdae23417d..95e6322133ee 100644 --- a/drivers/media/radio/radio-aztech.c +++ b/drivers/media/radio/radio-aztech.c @@ -1,11 +1,11 @@ -/* radio-aztech.c - Aztech radio card driver for Linux 2.2 +/* radio-aztech.c - Aztech radio card driver for Linux 2.2 * - * Adapted to support the Video for Linux API by + * Adapted to support the Video for Linux API by * Russell Kroll <rkroll@exploits.org>. Based on original tuner code by: * * Quay Ly * Donald Song - * Jason Lewis (jlewis@twilight.vtc.vsc.edu) + * Jason Lewis (jlewis@twilight.vtc.vsc.edu) * Scott McGrath (smcgrath@twilight.vtc.vsc.edu) * William McGrath (wmcgrath@twilight.vtc.vsc.edu) * @@ -31,6 +31,7 @@ #include <asm/io.h> /* outb, outb_p */ #include <asm/uaccess.h> /* copy to/from user */ #include <linux/videodev.h> /* kernel radio structs */ +#include <media/v4l2-common.h> #include <linux/config.h> /* CONFIG_RADIO_AZTECH_PORT */ /* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */ @@ -39,7 +40,7 @@ #define CONFIG_RADIO_AZTECH_PORT -1 #endif -static int io = CONFIG_RADIO_AZTECH_PORT; +static int io = CONFIG_RADIO_AZTECH_PORT; static int radio_nr = -1; static int radio_wait_time = 1000; static struct mutex lock; @@ -53,15 +54,15 @@ struct az_device static int volconvert(int level) { - level>>=14; /* Map 16bits down to 2 bit */ - level&=3; - + level>>=14; /* Map 16bits down to 2 bit */ + level&=3; + /* convert to card-friendly values */ - switch (level) + switch (level) { - case 0: + case 0: return 0; - case 1: + case 1: return 1; case 2: return 4; @@ -121,9 +122,9 @@ static int az_setfreq(struct az_device *dev, unsigned long frequency) frequency += 171200; /* Add 10.7 MHz IF */ frequency /= 800; /* Convert to 50 kHz units */ - + mutex_lock(&lock); - + send_0_byte (dev); /* 0: LSB of frequency */ for (i = 0; i < 13; i++) /* : frequency bits (1-13) */ @@ -151,7 +152,7 @@ static int az_setfreq(struct az_device *dev, unsigned long frequency) udelay (radio_wait_time); outb_p(128+64+volconvert(dev->curvol), io); - + mutex_unlock(&lock); return 0; @@ -162,7 +163,7 @@ static int az_do_ioctl(struct inode *inode, struct file *file, { struct video_device *dev = video_devdata(file); struct az_device *az = dev->priv; - + switch(cmd) { case VIDIOCGCAP: @@ -178,7 +179,7 @@ static int az_do_ioctl(struct inode *inode, struct file *file, case VIDIOCGTUNER: { struct video_tuner *v = arg; - if(v->tuner) /* Only 1 tuner */ + if(v->tuner) /* Only 1 tuner */ return -EINVAL; v->rangelow=(87*16000); v->rangehigh=(108*16000); @@ -211,7 +212,7 @@ static int az_do_ioctl(struct inode *inode, struct file *file, return 0; } case VIDIOCGAUDIO: - { + { struct video_audio *v = arg; memset(v,0, sizeof(*v)); v->flags|=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME; @@ -222,17 +223,17 @@ static int az_do_ioctl(struct inode *inode, struct file *file, v->volume=az->curvol; v->step=16384; strcpy(v->name, "Radio"); - return 0; + return 0; } case VIDIOCSAUDIO: { struct video_audio *v = arg; - if(v->audio) + if(v->audio) return -EINVAL; az->curvol=v->volume; az->stereo=(v->mode&VIDEO_SOUND_STEREO)?1:0; - if(v->flags&VIDEO_AUDIO_MUTE) + if(v->flags&VIDEO_AUDIO_MUTE) az_setvol(az,0); else az_setvol(az,az->curvol); @@ -277,7 +278,7 @@ static int __init aztech_init(void) return -EINVAL; } - if (!request_region(io, 2, "aztech")) + if (!request_region(io, 2, "aztech")) { printk(KERN_ERR "aztech: port 0x%x already in use\n", io); return -EBUSY; @@ -285,13 +286,13 @@ static int __init aztech_init(void) mutex_init(&lock); aztech_radio.priv=&aztech_unit; - + if(video_register_device(&aztech_radio, VFL_TYPE_RADIO, radio_nr)==-1) { release_region(io,2); return -EINVAL; } - + printk(KERN_INFO "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n"); /* mute card - prevents noisy bootups */ outb (0, io); |