diff options
Diffstat (limited to 'drivers/media/radio/radio-terratec.c')
| -rw-r--r-- | drivers/media/radio/radio-terratec.c | 63 |
1 files changed, 32 insertions, 31 deletions
diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c index fcfde2e4f195..dfba4ae596cd 100644 --- a/drivers/media/radio/radio-terratec.c +++ b/drivers/media/radio/radio-terratec.c @@ -2,11 +2,11 @@ * (c) 1999 R. Offermanns (rolf@offermanns.de) * based on the aimslab radio driver from M. Kirkwood * many thanks to Michael Becker and Friedhelm Birth (from TerraTec) - * + * * * History: * 1999-05-21 First preview release - * + * * Notes on the hardware: * There are two "main" chips on the card: * - Philips OM5610 (http://www-us.semiconductors.philips.com/acrobat/datasheets/OM5610_2.pdf) @@ -20,7 +20,7 @@ * (as soon i have understand how to get started :) * If you can help me out with that, please contact me!! * - * + * */ #include <linux/module.h> /* Modules */ @@ -30,6 +30,7 @@ #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_TERRATEC_PORT */ #include <linux/spinlock.h> @@ -49,7 +50,7 @@ #define WRT_EN 0x10 /*******************************************************************/ -static int io = CONFIG_RADIO_TERRATEC_PORT; +static int io = CONFIG_RADIO_TERRATEC_PORT; static int radio_nr = -1; static spinlock_t lock; @@ -88,15 +89,15 @@ static void tt_mute(struct tt_device *dev) static int tt_setvol(struct tt_device *dev, int vol) { - + // printk(KERN_ERR "setvol called, vol = %d\n", vol); if(vol == dev->curvol) { /* requested volume = current */ if (dev->muted) { /* user is unmuting the card */ dev->muted = 0; cardWriteVol(vol); /* enable card */ - } - + } + return 0; } @@ -107,9 +108,9 @@ static int tt_setvol(struct tt_device *dev, int vol) } dev->muted = 0; - + cardWriteVol(vol); - + dev->curvol = vol; return 0; @@ -121,13 +122,13 @@ static int tt_setvol(struct tt_device *dev, int vol) /* many more or less strange things are going on here, but hey, it works :) */ static int tt_setfreq(struct tt_device *dev, unsigned long freq1) -{ +{ int freq; int i; int p; int temp; long rest; - + unsigned char buffer[25]; /* we have to bit shift 25 registers */ freq = freq1/160; /* convert the freq. to a nice to handle value */ for(i=24;i>-1;i--) @@ -142,9 +143,9 @@ static int tt_setfreq(struct tt_device *dev, unsigned long freq1) { if (rest%temp == rest) buffer[i] = 0; - else + else { - buffer[i] = 1; + buffer[i] = 1; rest = rest-temp; } i--; @@ -153,10 +154,10 @@ static int tt_setfreq(struct tt_device *dev, unsigned long freq1) } spin_lock(&lock); - + for (i=24;i>-1;i--) /* bit shift the values to the radiocard */ { - if (buffer[i]==1) + if (buffer[i]==1) { outb(WRT_EN|DATA, BASEPORT); outb(WRT_EN|DATA|CLK_ON , BASEPORT); @@ -168,11 +169,11 @@ static int tt_setfreq(struct tt_device *dev, unsigned long freq1) outb(WRT_EN|0x00|CLK_ON , BASEPORT); } } - outb(0x00, BASEPORT); - + outb(0x00, BASEPORT); + spin_unlock(&lock); - - return 0; + + return 0; } static int tt_getsigstr(struct tt_device *dev) /* TODO */ @@ -190,7 +191,7 @@ static int tt_do_ioctl(struct inode *inode, struct file *file, { struct video_device *dev = video_devdata(file); struct tt_device *tt=dev->priv; - + switch(cmd) { case VIDIOCGCAP: @@ -206,7 +207,7 @@ static int tt_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); @@ -238,21 +239,21 @@ static int tt_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; v->volume=tt->curvol * 6554; v->step=6554; strcpy(v->name, "Radio"); - return 0; + return 0; } case VIDIOCSAUDIO: { struct video_audio *v = arg; - if(v->audio) + if(v->audio) return -EINVAL; - if(v->flags&VIDEO_AUDIO_MUTE) + if(v->flags&VIDEO_AUDIO_MUTE) tt_mute(tt); else tt_setvol(tt,v->volume/6554); @@ -296,25 +297,25 @@ static int __init terratec_init(void) printk(KERN_ERR "You must set an I/O address with io=0x???\n"); return -EINVAL; } - if (!request_region(io, 2, "terratec")) + if (!request_region(io, 2, "terratec")) { printk(KERN_ERR "TerraTec: port 0x%x already in use\n", io); return -EBUSY; } terratec_radio.priv=&terratec_unit; - + spin_lock_init(&lock); - + if(video_register_device(&terratec_radio, VFL_TYPE_RADIO, radio_nr)==-1) { release_region(io,2); return -EINVAL; } - + printk(KERN_INFO "TERRATEC ActivRadio Standalone card driver.\n"); - /* mute card - prevents noisy bootups */ + /* mute card - prevents noisy bootups */ /* this ensures that the volume is all the way down */ cardWriteVol(0); @@ -334,7 +335,7 @@ static void __exit terratec_cleanup_module(void) { video_unregister_device(&terratec_radio); release_region(io,2); - printk(KERN_INFO "TERRATEC ActivRadio Standalone card driver unloaded.\n"); + printk(KERN_INFO "TERRATEC ActivRadio Standalone card driver unloaded.\n"); } module_init(terratec_init); |