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path: root/drivers/media/radio/radio-cadet.c
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Diffstat (limited to 'drivers/media/radio/radio-cadet.c')
-rw-r--r--drivers/media/radio/radio-cadet.c317
1 files changed, 159 insertions, 158 deletions
diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
index f1b5ac81e9d..8641aec7baf 100644
--- a/drivers/media/radio/radio-cadet.c
+++ b/drivers/media/radio/radio-cadet.c
@@ -8,7 +8,7 @@
* Russell Kroll (rkroll@exploits.org)
* 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)
*
@@ -34,6 +34,7 @@
#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/param.h>
#include <linux/pnp.h>
@@ -55,29 +56,29 @@ static int cadet_probe(void);
/*
* Signal Strength Threshold Values
- * The V4L API spec does not define any particular unit for the signal
+ * The V4L API spec does not define any particular unit for the signal
* strength value. These values are in microvolts of RF at the tuner's input.
*/
static __u16 sigtable[2][4]={{5,10,30,150},{28,40,63,1000}};
static int cadet_getrds(void)
{
- int rdsstat=0;
+ int rdsstat=0;
spin_lock(&cadet_io_lock);
- outb(3,io); /* Select Decoder Control/Status */
+ outb(3,io); /* Select Decoder Control/Status */
outb(inb(io+1)&0x7f,io+1); /* Reset RDS detection */
spin_unlock(&cadet_io_lock);
-
+
msleep(100);
- spin_lock(&cadet_io_lock);
- outb(3,io); /* Select Decoder Control/Status */
+ spin_lock(&cadet_io_lock);
+ outb(3,io); /* Select Decoder Control/Status */
if((inb(io+1)&0x80)!=0) {
- rdsstat|=VIDEO_TUNER_RDS_ON;
+ rdsstat|=VIDEO_TUNER_RDS_ON;
}
if((inb(io+1)&0x10)!=0) {
- rdsstat|=VIDEO_TUNER_MBS_ON;
+ rdsstat|=VIDEO_TUNER_MBS_ON;
}
spin_unlock(&cadet_io_lock);
return rdsstat;
@@ -86,49 +87,49 @@ static int cadet_getrds(void)
static int cadet_getstereo(void)
{
int ret = 0;
- if(curtuner != 0) /* Only FM has stereo capability! */
- return 0;
+ if(curtuner != 0) /* Only FM has stereo capability! */
+ return 0;
spin_lock(&cadet_io_lock);
- outb(7,io); /* Select tuner control */
+ outb(7,io); /* Select tuner control */
if( (inb(io+1) & 0x40) == 0)
- ret = 1;
- spin_unlock(&cadet_io_lock);
- return ret;
+ ret = 1;
+ spin_unlock(&cadet_io_lock);
+ return ret;
}
static unsigned cadet_gettune(void)
{
- int curvol,i;
+ int curvol,i;
unsigned fifo=0;
- /*
- * Prepare for read
- */
+ /*
+ * Prepare for read
+ */
spin_lock(&cadet_io_lock);
-
- outb(7,io); /* Select tuner control */
- curvol=inb(io+1); /* Save current volume/mute setting */
- outb(0x00,io+1); /* Ensure WRITE-ENABLE is LOW */
+
+ outb(7,io); /* Select tuner control */
+ curvol=inb(io+1); /* Save current volume/mute setting */
+ outb(0x00,io+1); /* Ensure WRITE-ENABLE is LOW */
tunestat=0xffff;
- /*
- * Read the shift register
- */
- for(i=0;i<25;i++) {
- fifo=(fifo<<1)|((inb(io+1)>>7)&0x01);
- if(i<24) {
- outb(0x01,io+1);
+ /*
+ * Read the shift register
+ */
+ for(i=0;i<25;i++) {
+ fifo=(fifo<<1)|((inb(io+1)>>7)&0x01);
+ if(i<24) {
+ outb(0x01,io+1);
tunestat&=inb(io+1);
- outb(0x00,io+1);
- }
- }
-
- /*
- * Restore volume/mute setting
- */
- outb(curvol,io+1);
+ outb(0x00,io+1);
+ }
+ }
+
+ /*
+ * Restore volume/mute setting
+ */
+ outb(curvol,io+1);
spin_unlock(&cadet_io_lock);
return fifo;
@@ -136,43 +137,43 @@ static unsigned cadet_gettune(void)
static unsigned cadet_getfreq(void)
{
- int i;
- unsigned freq=0,test,fifo=0;
+ int i;
+ unsigned freq=0,test,fifo=0;
/*
* Read current tuning
*/
fifo=cadet_gettune();
- /*
- * Convert to actual frequency
- */
+ /*
+ * Convert to actual frequency
+ */
if(curtuner==0) { /* FM */
- test=12500;
- for(i=0;i<14;i++) {
- if((fifo&0x01)!=0) {
- freq+=test;
- }
- test=test<<1;
- fifo=fifo>>1;
- }
- freq-=10700000; /* IF frequency is 10.7 MHz */
- freq=(freq*16)/1000000; /* Make it 1/16 MHz */
+ test=12500;
+ for(i=0;i<14;i++) {
+ if((fifo&0x01)!=0) {
+ freq+=test;
+ }
+ test=test<<1;
+ fifo=fifo>>1;
+ }
+ freq-=10700000; /* IF frequency is 10.7 MHz */
+ freq=(freq*16)/1000000; /* Make it 1/16 MHz */
}
if(curtuner==1) { /* AM */
- freq=((fifo&0x7fff)-2010)*16;
+ freq=((fifo&0x7fff)-2010)*16;
}
- return freq;
+ return freq;
}
static void cadet_settune(unsigned fifo)
{
- int i;
- unsigned test;
+ int i;
+ unsigned test;
spin_lock(&cadet_io_lock);
-
+
outb(7,io); /* Select tuner control */
/*
* Write the shift register
@@ -183,7 +184,7 @@ static void cadet_settune(unsigned fifo)
outb(7,io); /* Select tuner control */
outb(test,io+1); /* Initialize for write */
for(i=0;i<25;i++) {
- test|=0x01; /* Toggle SCK High */
+ test|=0x01; /* Toggle SCK High */
outb(test,io+1);
test&=0xfe; /* Toggle SCK Low */
outb(test,io+1);
@@ -196,57 +197,57 @@ static void cadet_settune(unsigned fifo)
static void cadet_setfreq(unsigned freq)
{
- unsigned fifo;
- int i,j,test;
- int curvol;
+ unsigned fifo;
+ int i,j,test;
+ int curvol;
- /*
- * Formulate a fifo command
- */
+ /*
+ * Formulate a fifo command
+ */
fifo=0;
if(curtuner==0) { /* FM */
- test=102400;
- freq=(freq*1000)/16; /* Make it kHz */
- freq+=10700; /* IF is 10700 kHz */
- for(i=0;i<14;i++) {
- fifo=fifo<<1;
- if(freq>=test) {
- fifo|=0x01;
- freq-=test;
- }
- test=test>>1;
- }
+ test=102400;
+ freq=(freq*1000)/16; /* Make it kHz */
+ freq+=10700; /* IF is 10700 kHz */
+ for(i=0;i<14;i++) {
+ fifo=fifo<<1;
+ if(freq>=test) {
+ fifo|=0x01;
+ freq-=test;
+ }
+ test=test>>1;
+ }
}
if(curtuner==1) { /* AM */
- fifo=(freq/16)+2010; /* Make it kHz */
+ fifo=(freq/16)+2010; /* Make it kHz */
fifo|=0x100000; /* Select AM Band */
}
- /*
- * Save current volume/mute setting
- */
+ /*
+ * Save current volume/mute setting
+ */
spin_lock(&cadet_io_lock);
outb(7,io); /* Select tuner control */
- curvol=inb(io+1);
- spin_unlock(&cadet_io_lock);
+ curvol=inb(io+1);
+ spin_unlock(&cadet_io_lock);
/*
* Tune the card
*/
for(j=3;j>-1;j--) {
- cadet_settune(fifo|(j<<16));
-
- spin_lock(&cadet_io_lock);
+ cadet_settune(fifo|(j<<16));
+
+ spin_lock(&cadet_io_lock);
outb(7,io); /* Select tuner control */
outb(curvol,io+1);
spin_unlock(&cadet_io_lock);
-
+
msleep(100);
cadet_gettune();
if((tunestat & 0x40) == 0) { /* Tuned */
- sigstrength=sigtable[curtuner][j];
+ sigstrength=sigtable[curtuner][j];
return;
}
}
@@ -257,28 +258,28 @@ static void cadet_setfreq(unsigned freq)
static int cadet_getvol(void)
{
int ret = 0;
-
+
spin_lock(&cadet_io_lock);
-
- outb(7,io); /* Select tuner control */
- if((inb(io + 1) & 0x20) != 0)
- ret = 0xffff;
-
- spin_unlock(&cadet_io_lock);
- return ret;
+
+ outb(7,io); /* Select tuner control */
+ if((inb(io + 1) & 0x20) != 0)
+ ret = 0xffff;
+
+ spin_unlock(&cadet_io_lock);
+ return ret;
}
static void cadet_setvol(int vol)
{
spin_lock(&cadet_io_lock);
- outb(7,io); /* Select tuner control */
- if(vol>0)
- outb(0x20,io+1);
- else
- outb(0x00,io+1);
+ outb(7,io); /* Select tuner control */
+ if(vol>0)
+ outb(0x20,io+1);
+ else
+ outb(0x00,io+1);
spin_unlock(&cadet_io_lock);
-}
+}
static void cadet_handler(unsigned long data)
{
@@ -288,15 +289,15 @@ static void cadet_handler(unsigned long data)
if(spin_trylock(&cadet_io_lock))
{
- outb(0x3,io); /* Select RDS Decoder Control */
+ outb(0x3,io); /* Select RDS Decoder Control */
if((inb(io+1)&0x20)!=0) {
- printk(KERN_CRIT "cadet: RDS fifo overflow\n");
+ printk(KERN_CRIT "cadet: RDS fifo overflow\n");
}
outb(0x80,io); /* Select RDS fifo */
while((inb(io)&0x80)!=0) {
- rdsbuf[rdsin]=inb(io+1);
+ rdsbuf[rdsin]=inb(io+1);
if(rdsin==rdsout)
- printk(KERN_WARNING "cadet: RDS buffer overflow\n");
+ printk(KERN_WARNING "cadet: RDS buffer overflow\n");
else
rdsin++;
}
@@ -307,9 +308,9 @@ static void cadet_handler(unsigned long data)
* Service pending read
*/
if( rdsin!=rdsout)
- wake_up_interruptible(&read_queue);
+ wake_up_interruptible(&read_queue);
- /*
+ /*
* Clean up and exit
*/
init_timer(&readtimer);
@@ -324,12 +325,12 @@ static void cadet_handler(unsigned long data)
static ssize_t cadet_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
- int i=0;
+ int i=0;
unsigned char readbuf[RDS_BUFFER];
- if(rdsstat==0) {
+ if(rdsstat==0) {
spin_lock(&cadet_io_lock);
- rdsstat=1;
+ rdsstat=1;
outb(0x80,io); /* Select RDS fifo */
spin_unlock(&cadet_io_lock);
init_timer(&readtimer);
@@ -339,15 +340,15 @@ static ssize_t cadet_read(struct file *file, char __user *data,
add_timer(&readtimer);
}
if(rdsin==rdsout) {
- if (file->f_flags & O_NONBLOCK)
- return -EWOULDBLOCK;
- interruptible_sleep_on(&read_queue);
- }
+ if (file->f_flags & O_NONBLOCK)
+ return -EWOULDBLOCK;
+ interruptible_sleep_on(&read_queue);
+ }
while( i<count && rdsin!=rdsout)
- readbuf[i++]=rdsbuf[rdsout++];
+ readbuf[i++]=rdsbuf[rdsout++];
if (copy_to_user(data,readbuf,i))
- return -EFAULT;
+ return -EFAULT;
return i;
}
@@ -375,29 +376,29 @@ static int cadet_do_ioctl(struct inode *inode, struct file *file,
return -EINVAL;
}
switch(v->tuner) {
- case 0:
- strcpy(v->name,"FM");
- v->rangelow=1400; /* 87.5 MHz */
- v->rangehigh=1728; /* 108.0 MHz */
- v->flags=0;
- v->mode=0;
- v->mode|=VIDEO_MODE_AUTO;
- v->signal=sigstrength;
- if(cadet_getstereo()==1) {
- v->flags|=VIDEO_TUNER_STEREO_ON;
- }
+ case 0:
+ strcpy(v->name,"FM");
+ v->rangelow=1400; /* 87.5 MHz */
+ v->rangehigh=1728; /* 108.0 MHz */
+ v->flags=0;
+ v->mode=0;
+ v->mode|=VIDEO_MODE_AUTO;
+ v->signal=sigstrength;
+ if(cadet_getstereo()==1) {
+ v->flags|=VIDEO_TUNER_STEREO_ON;
+ }
v->flags|=cadet_getrds();
- break;
- case 1:
- strcpy(v->name,"AM");
- v->rangelow=8320; /* 520 kHz */
- v->rangehigh=26400; /* 1650 kHz */
- v->flags=0;
- v->flags|=VIDEO_TUNER_LOW;
- v->mode=0;
- v->mode|=VIDEO_MODE_AUTO;
- v->signal=sigstrength;
- break;
+ break;
+ case 1:
+ strcpy(v->name,"AM");
+ v->rangelow=8320; /* 520 kHz */
+ v->rangehigh=26400; /* 1650 kHz */
+ v->flags=0;
+ v->flags|=VIDEO_TUNER_LOW;
+ v->mode=0;
+ v->mode|=VIDEO_MODE_AUTO;
+ v->signal=sigstrength;
+ break;
}
return 0;
}
@@ -407,49 +408,49 @@ static int cadet_do_ioctl(struct inode *inode, struct file *file,
if((v->tuner<0)||(v->tuner>1)) {
return -EINVAL;
}
- curtuner=v->tuner;
+ curtuner=v->tuner;
return 0;
}
case VIDIOCGFREQ:
{
- unsigned long *freq = arg;
+ unsigned long *freq = arg;
*freq = cadet_getfreq();
return 0;
}
case VIDIOCSFREQ:
{
- unsigned long *freq = arg;
+ unsigned long *freq = arg;
if((curtuner==0)&&((*freq<1400)||(*freq>1728))) {
- return -EINVAL;
+ return -EINVAL;
}
if((curtuner==1)&&((*freq<8320)||(*freq>26400))) {
- return -EINVAL;
+ return -EINVAL;
}
cadet_setfreq(*freq);
return 0;
}
case VIDIOCGAUDIO:
- {
+ {
struct video_audio *v = arg;
memset(v,0, sizeof(*v));
v->flags=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME;
if(cadet_getstereo()==0) {
- v->mode=VIDEO_SOUND_MONO;
+ v->mode=VIDEO_SOUND_MONO;
} else {
v->mode=VIDEO_SOUND_STEREO;
}
v->volume=cadet_getvol();
v->step=0xffff;
strcpy(v->name, "Radio");
- return 0;
+ return 0;
}
case VIDIOCSAUDIO:
{
struct video_audio *v = arg;
- if(v->audio)
+ if(v->audio)
return -EINVAL;
cadet_setvol(v->volume);
- if(v->flags&VIDEO_AUDIO_MUTE)
+ if(v->flags&VIDEO_AUDIO_MUTE)
cadet_setvol(0);
else
cadet_setvol(0xffff);
@@ -539,16 +540,16 @@ static struct pnp_driver cadet_pnp_driver = {
static int cadet_probe(void)
{
- static int iovals[8]={0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e};
+ static int iovals[8]={0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e};
int i;
for(i=0;i<8;i++) {
- io=iovals[i];
+ io=iovals[i];
if (request_region(io, 2, "cadet-probe")) {
- cadet_setfreq(1410);
+ cadet_setfreq(1410);
if(cadet_getfreq()==1410) {
release_region(io, 2);
- return io;
+ return io;
}
release_region(io, 2);
}
@@ -556,7 +557,7 @@ static int cadet_probe(void)
return -1;
}
-/*
+/*
* io should only be set if the user has used something like
* isapnp (the userspace program) to initialize this card for us
*/
@@ -564,7 +565,7 @@ static int cadet_probe(void)
static int __init cadet_init(void)
{
spin_lock_init(&cadet_io_lock);
-
+
/*
* If a probe was requested then probe ISAPnP first (safest)
*/
@@ -579,12 +580,12 @@ static int __init cadet_init(void)
/*
* Else we bail out
*/
-
- if(io < 0) {
-#ifdef MODULE
+
+ if(io < 0) {
+#ifdef MODULE
printk(KERN_ERR "You must set an I/O address with io=0x???\n");
#endif
- goto fail;
+ goto fail;
}
if (!request_region(io,2,"cadet"))
goto fail;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 22:46:55 +0000