diff options
| -rw-r--r-- | drivers/media/radio/radio-cadet.c | 595 |
1 files changed, 295 insertions, 300 deletions
diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c index cb3075ac104..7741f33ce87 100644 --- a/drivers/media/radio/radio-cadet.c +++ b/drivers/media/radio/radio-cadet.c @@ -35,333 +35,319 @@ #include <linux/init.h> /* Initdata */ #include <linux/ioport.h> /* request_region */ #include <linux/delay.h> /* udelay */ -#include <asm/io.h> /* outb, outb_p */ -#include <asm/uaccess.h> /* copy to/from user */ #include <linux/videodev2.h> /* V4L2 API defs */ -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> #include <linux/param.h> #include <linux/pnp.h> +#include <linux/io.h> /* outb, outb_p */ +#include <linux/uaccess.h> /* copy to/from user */ +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> + +MODULE_AUTHOR("Fred Gleason, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath"); +MODULE_DESCRIPTION("A driver for the ADS Cadet AM/FM/RDS radio card."); +MODULE_LICENSE("GPL"); + +static int io = -1; /* default to isapnp activation */ +static int radio_nr = -1; + +module_param(io, int, 0); +MODULE_PARM_DESC(io, "I/O address of Cadet card (0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e)"); +module_param(radio_nr, int, 0); + +#define CADET_VERSION KERNEL_VERSION(0, 3, 3) #define RDS_BUFFER 256 #define RDS_RX_FLAG 1 #define MBS_RX_FLAG 2 -#define CADET_VERSION KERNEL_VERSION(0,3,3) - -static struct v4l2_queryctrl radio_qctrl[] = { - { - .id = V4L2_CID_AUDIO_MUTE, - .name = "Mute", - .minimum = 0, - .maximum = 1, - .default_value = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_AUDIO_VOLUME, - .name = "Volume", - .minimum = 0, - .maximum = 0xff, - .step = 1, - .default_value = 0xff, - .type = V4L2_CTRL_TYPE_INTEGER, - } +struct cadet { + struct v4l2_device v4l2_dev; + struct video_device vdev; + int io; + int users; + int curtuner; + int tunestat; + int sigstrength; + wait_queue_head_t read_queue; + struct timer_list readtimer; + __u8 rdsin, rdsout, rdsstat; + unsigned char rdsbuf[RDS_BUFFER]; + struct mutex lock; + int reading; }; -static int io=-1; /* default to isapnp activation */ -static int radio_nr = -1; -static int users; -static int curtuner; -static int tunestat; -static int sigstrength; -static wait_queue_head_t read_queue; -static struct timer_list readtimer; -static __u8 rdsin, rdsout, rdsstat; -static unsigned char rdsbuf[RDS_BUFFER]; -static spinlock_t cadet_io_lock; - -static int cadet_probe(void); +static struct cadet cadet_card; /* * Signal Strength Threshold Values * 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 __u16 sigtable[2][4] = { + { 5, 10, 30, 150 }, + { 28, 40, 63, 1000 } +}; -static int -cadet_getstereo(void) +static int cadet_getstereo(struct cadet *dev) { int ret = V4L2_TUNER_SUB_MONO; - if(curtuner != 0) /* Only FM has stereo capability! */ + + if (dev->curtuner != 0) /* Only FM has stereo capability! */ return V4L2_TUNER_SUB_MONO; - spin_lock(&cadet_io_lock); - outb(7,io); /* Select tuner control */ - if( (inb(io+1) & 0x40) == 0) + mutex_lock(&dev->lock); + outb(7, dev->io); /* Select tuner control */ + if ((inb(dev->io + 1) & 0x40) == 0) ret = V4L2_TUNER_SUB_STEREO; - spin_unlock(&cadet_io_lock); + mutex_unlock(&dev->lock); return ret; } -static unsigned -cadet_gettune(void) +static unsigned cadet_gettune(struct cadet *dev) { - int curvol,i; - unsigned fifo=0; + int curvol, i; + unsigned fifo = 0; /* * Prepare for read */ - spin_lock(&cadet_io_lock); + mutex_lock(&dev->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 */ - tunestat=0xffff; + outb(7, dev->io); /* Select tuner control */ + curvol = inb(dev->io + 1); /* Save current volume/mute setting */ + outb(0x00, dev->io + 1); /* Ensure WRITE-ENABLE is LOW */ + dev->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); - tunestat&=inb(io+1); - outb(0x00,io+1); + for (i = 0; i < 25; i++) { + fifo = (fifo << 1) | ((inb(dev->io + 1) >> 7) & 0x01); + if (i < 24) { + outb(0x01, dev->io + 1); + dev->tunestat &= inb(dev->io + 1); + outb(0x00, dev->io + 1); } } /* * Restore volume/mute setting */ - outb(curvol,io+1); - spin_unlock(&cadet_io_lock); + outb(curvol, dev->io + 1); + mutex_unlock(&dev->lock); return fifo; } -static unsigned -cadet_getfreq(void) +static unsigned cadet_getfreq(struct cadet *dev) { int i; - unsigned freq=0,test,fifo=0; + unsigned freq = 0, test, fifo = 0; /* * Read current tuning */ - fifo=cadet_gettune(); + fifo = cadet_gettune(dev); /* * 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; + if (dev->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 */ - } - if(curtuner==1) { /* AM */ - freq=((fifo&0x7fff)-2010)*16; + freq -= 10700000; /* IF frequency is 10.7 MHz */ + freq = (freq * 16) / 1000000; /* Make it 1/16 MHz */ } + if (dev->curtuner == 1) /* AM */ + freq = ((fifo & 0x7fff) - 2010) * 16; return freq; } -static void -cadet_settune(unsigned fifo) +static void cadet_settune(struct cadet *dev, unsigned fifo) { int i; unsigned test; - spin_lock(&cadet_io_lock); + mutex_lock(&dev->lock); - outb(7,io); /* Select tuner control */ + outb(7, dev->io); /* Select tuner control */ /* * Write the shift register */ - test=0; - test=(fifo>>23)&0x02; /* Align data for SDO */ - test|=0x1c; /* SDM=1, SWE=1, SEN=1, SCK=0 */ - outb(7,io); /* Select tuner control */ - outb(test,io+1); /* Initialize for write */ - for(i=0;i<25;i++) { - test|=0x01; /* Toggle SCK High */ - outb(test,io+1); - test&=0xfe; /* Toggle SCK Low */ - outb(test,io+1); - fifo=fifo<<1; /* Prepare the next bit */ - test=0x1c|((fifo>>23)&0x02); - outb(test,io+1); + test = 0; + test = (fifo >> 23) & 0x02; /* Align data for SDO */ + test |= 0x1c; /* SDM=1, SWE=1, SEN=1, SCK=0 */ + outb(7, dev->io); /* Select tuner control */ + outb(test, dev->io + 1); /* Initialize for write */ + for (i = 0; i < 25; i++) { + test |= 0x01; /* Toggle SCK High */ + outb(test, dev->io + 1); + test &= 0xfe; /* Toggle SCK Low */ + outb(test, dev->io + 1); + fifo = fifo << 1; /* Prepare the next bit */ + test = 0x1c | ((fifo >> 23) & 0x02); + outb(test, dev->io + 1); } - spin_unlock(&cadet_io_lock); + mutex_unlock(&dev->lock); } -static void -cadet_setfreq(unsigned freq) +static void cadet_setfreq(struct cadet *dev, unsigned freq) { unsigned fifo; - int i,j,test; + int i, j, test; int curvol; /* * 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; + fifo = 0; + if (dev->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 = test >> 1; } } - if(curtuner==1) { /* AM */ - fifo=(freq/16)+2010; /* Make it kHz */ - fifo|=0x100000; /* Select AM Band */ + if (dev->curtuner == 1) { /* AM */ + fifo = (freq / 16) + 2010; /* Make it kHz */ + fifo |= 0x100000; /* Select AM Band */ } /* * 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); + mutex_lock(&dev->lock); + outb(7, dev->io); /* Select tuner control */ + curvol = inb(dev->io + 1); + mutex_unlock(&dev->lock); /* * Tune the card */ - for(j=3;j>-1;j--) { - cadet_settune(fifo|(j<<16)); + for (j = 3; j > -1; j--) { + cadet_settune(dev, fifo | (j << 16)); - spin_lock(&cadet_io_lock); - outb(7,io); /* Select tuner control */ - outb(curvol,io+1); - spin_unlock(&cadet_io_lock); + mutex_lock(&dev->lock); + outb(7, dev->io); /* Select tuner control */ + outb(curvol, dev->io + 1); + mutex_unlock(&dev->lock); msleep(100); - cadet_gettune(); - if((tunestat & 0x40) == 0) { /* Tuned */ - sigstrength=sigtable[curtuner][j]; + cadet_gettune(dev); + if ((dev->tunestat & 0x40) == 0) { /* Tuned */ + dev->sigstrength = sigtable[dev->curtuner][j]; return; } } - sigstrength=0; + dev->sigstrength = 0; } -static int -cadet_getvol(void) +static int cadet_getvol(struct cadet *dev) { int ret = 0; - spin_lock(&cadet_io_lock); + mutex_lock(&dev->lock); - outb(7,io); /* Select tuner control */ - if((inb(io + 1) & 0x20) != 0) + outb(7, dev->io); /* Select tuner control */ + if ((inb(dev->io + 1) & 0x20) != 0) ret = 0xffff; - spin_unlock(&cadet_io_lock); + mutex_unlock(&dev->lock); return ret; } -static void -cadet_setvol(int vol) +static void cadet_setvol(struct cadet *dev, int vol) { - spin_lock(&cadet_io_lock); - outb(7,io); /* Select tuner control */ - if(vol>0) - outb(0x20,io+1); + mutex_lock(&dev->lock); + outb(7, dev->io); /* Select tuner control */ + if (vol > 0) + outb(0x20, dev->io + 1); else - outb(0x00,io+1); - spin_unlock(&cadet_io_lock); + outb(0x00, dev->io + 1); + mutex_unlock(&dev->lock); } -static void -cadet_handler(unsigned long data) +static void cadet_handler(unsigned long data) { - /* - * Service the RDS fifo - */ + struct cadet *dev = (void *)data; - if(spin_trylock(&cadet_io_lock)) - { - outb(0x3,io); /* Select RDS Decoder Control */ - if((inb(io+1)&0x20)!=0) { + /* Service the RDS fifo */ + if (mutex_trylock(&dev->lock)) { + outb(0x3, dev->io); /* Select RDS Decoder Control */ + if ((inb(dev->io + 1) & 0x20) != 0) printk(KERN_CRIT "cadet: RDS fifo overflow\n"); - } - outb(0x80,io); /* Select RDS fifo */ - while((inb(io)&0x80)!=0) { - rdsbuf[rdsin]=inb(io+1); - if(rdsin==rdsout) + outb(0x80, dev->io); /* Select RDS fifo */ + while ((inb(dev->io) & 0x80) != 0) { + dev->rdsbuf[dev->rdsin] = inb(dev->io + 1); + if (dev->rdsin == dev->rdsout) printk(KERN_WARNING "cadet: RDS buffer overflow\n"); else - rdsin++; + dev->rdsin++; } - spin_unlock(&cadet_io_lock); + mutex_unlock(&dev->lock); } /* * Service pending read */ - if( rdsin!=rdsout) - wake_up_interruptible(&read_queue); + if (dev->rdsin != dev->rdsout) + wake_up_interruptible(&dev->read_queue); /* * Clean up and exit */ - init_timer(&readtimer); - readtimer.function=cadet_handler; - readtimer.data=(unsigned long)0; - readtimer.expires=jiffies+msecs_to_jiffies(50); - add_timer(&readtimer); + init_timer(&dev->readtimer); + dev->readtimer.function = cadet_handler; + dev->readtimer.data = (unsigned long)0; + dev->readtimer.expires = jiffies + msecs_to_jiffies(50); + add_timer(&dev->readtimer); } - -static ssize_t -cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos) +static ssize_t cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { - int i=0; + struct cadet *dev = video_drvdata(file); unsigned char readbuf[RDS_BUFFER]; - - if(rdsstat==0) { - spin_lock(&cadet_io_lock); - rdsstat=1; - outb(0x80,io); /* Select RDS fifo */ - spin_unlock(&cadet_io_lock); - init_timer(&readtimer); - readtimer.function=cadet_handler; - readtimer.data=(unsigned long)0; - readtimer.expires=jiffies+msecs_to_jiffies(50); - add_timer(&readtimer); + int i = 0; + + if (dev->rdsstat == 0) { + mutex_lock(&dev->lock); + dev->rdsstat = 1; + outb(0x80, dev->io); /* Select RDS fifo */ + mutex_unlock(&dev->lock); + init_timer(&dev->readtimer); + dev->readtimer.function = cadet_handler; + dev->readtimer.data = (unsigned long)dev; + dev->readtimer.expires = jiffies + msecs_to_jiffies(50); + add_timer(&dev->readtimer); } - if(rdsin==rdsout) { + if (dev->rdsin == dev->rdsout) { if (file->f_flags & O_NONBLOCK) return -EWOULDBLOCK; - interruptible_sleep_on(&read_queue); + interruptible_sleep_on(&dev->read_queue); } - while( i<count && rdsin!=rdsout) - readbuf[i++]=rdsbuf[rdsout++]; + while (i < count && dev->rdsin != dev->rdsout) + readbuf[i++] = dev->rdsbuf[dev->rdsout++]; - if (copy_to_user(data,readbuf,i)) + if (copy_to_user(data, readbuf, i)) return -EFAULT; return i; } @@ -370,38 +356,40 @@ cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos) static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *v) { - v->capabilities = - V4L2_CAP_TUNER | - V4L2_CAP_READWRITE; + strlcpy(v->driver, "ADS Cadet", sizeof(v->driver)); + strlcpy(v->card, "ADS Cadet", sizeof(v->card)); + strlcpy(v->bus_info, "ISA", sizeof(v->bus_info)); v->version = CADET_VERSION; - strcpy(v->driver, "ADS Cadet"); - strcpy(v->card, "ADS Cadet"); + v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_READWRITE; return 0; } static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { + struct cadet *dev = video_drvdata(file); + v->type = V4L2_TUNER_RADIO; switch (v->index) { case 0: - strcpy(v->name, "FM"); + strlcpy(v->name, "FM", sizeof(v->name)); v->capability = V4L2_TUNER_CAP_STEREO; v->rangelow = 1400; /* 87.5 MHz */ v->rangehigh = 1728; /* 108.0 MHz */ - v->rxsubchans=cadet_getstereo(); - switch (v->rxsubchans){ + v->rxsubchans = cadet_getstereo(dev); + switch (v->rxsubchans) { case V4L2_TUNER_SUB_MONO: v->audmode = V4L2_TUNER_MODE_MONO; break; case V4L2_TUNER_SUB_STEREO: v->audmode = V4L2_TUNER_MODE_STEREO; break; - default: ; + default: + break; } break; case 1: - strcpy(v->name, "AM"); + strlcpy(v->name, "AM", sizeof(v->name)); v->capability = V4L2_TUNER_CAP_LOW; v->rangelow = 8320; /* 520 kHz */ v->rangehigh = 26400; /* 1650 kHz */ @@ -411,25 +399,29 @@ static int vidioc_g_tuner(struct file *file, void *priv, default: return -EINVAL; } - v->signal = sigstrength; /* We might need to modify scaling of this */ + v->signal = dev->sigstrength; /* We might need to modify scaling of this */ return 0; } static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - if((v->index != 0)&&(v->index != 1)) + struct cadet *dev = video_drvdata(file); + + if (v->index != 0 && v->index != 1) return -EINVAL; - curtuner = v->index; + dev->curtuner = v->index; return 0; } static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - f->tuner = curtuner; + struct cadet *dev = video_drvdata(file); + + f->tuner = dev->curtuner; f->type = V4L2_TUNER_RADIO; - f->frequency = cadet_getfreq(); + f->frequency = cadet_getfreq(dev); return 0; } @@ -437,27 +429,26 @@ static int vidioc_g_frequency(struct file *file, void *priv, static int vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { + struct cadet *dev = video_drvdata(file); + if (f->type != V4L2_TUNER_RADIO) return -EINVAL; - if((curtuner==0)&&((f->frequency<1400)||(f->frequency>1728))) + if (dev->curtuner == 0 && (f->frequency < 1400 || f->frequency > 1728)) return -EINVAL; - if((curtuner==1)&&((f->frequency<8320)||(f->frequency>26400))) + if (dev->curtuner == 1 && (f->frequency < 8320 || f->frequency > 26400)) return -EINVAL; - cadet_setfreq(f->frequency); + cadet_setfreq(dev, f->frequency); return 0; } static int vidioc_queryctrl(struct file *file, void *priv, struct v4l2_queryctrl *qc) { - int i; - - for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) { - if (qc->id && qc->id == radio_qctrl[i].id) { - memcpy(qc, &(radio_qctrl[i]), - sizeof(*qc)); - return 0; - } + switch (qc->id) { + case V4L2_CID_AUDIO_MUTE: + return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); + case V4L2_CID_AUDIO_VOLUME: + return v4l2_ctrl_query_fill(qc, 0, 0xff, 1, 0xff); } return -EINVAL; } @@ -465,12 +456,14 @@ static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - switch (ctrl->id){ + struct cadet *dev = video_drvdata(file); + + switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */ - ctrl->value = (cadet_getvol() == 0); + ctrl->value = (cadet_getvol(dev) == 0); break; case V4L2_CID_AUDIO_VOLUME: - ctrl->value = cadet_getvol(); + ctrl->value = cadet_getvol(dev); break; default: return -EINVAL; @@ -481,15 +474,17 @@ static int vidioc_g_ctrl(struct file *file, void *priv, static int vidioc_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { + struct cadet *dev = video_drvdata(file); + switch (ctrl->id){ case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */ if (ctrl->value) - cadet_setvol(0); + cadet_setvol(dev, 0); else - cadet_setvol(0xffff); + cadet_setvol(dev, 0xffff); break; case V4L2_CID_AUDIO_VOLUME: - cadet_setvol(ctrl->value); + cadet_setvol(dev, ctrl->value); break; default: return -EINVAL; @@ -497,16 +492,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv, return 0; } -static int vidioc_g_audio(struct file *file, void *priv, - struct v4l2_audio *a) -{ - if (a->index > 1) - return -EINVAL; - strcpy(a->name, "Radio"); - a->capability = V4L2_AUDCAP_STEREO; - return 0; -} - static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) { *i = 0; @@ -515,43 +500,52 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) { - if (i != 0) - return -EINVAL; + return i ? -EINVAL : 0; +} + +static int vidioc_g_audio(struct file *file, void *priv, + struct v4l2_audio *a) +{ + a->index = 0; + strlcpy(a->name, "Radio", sizeof(a->name)); + a->capability = V4L2_AUDCAP_STEREO; return 0; } static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a) { - if (a->index != 0) - return -EINVAL; - return 0; + return a->index ? -EINVAL : 0; } -static int -cadet_open(struct file *file) +static int cadet_open(struct file *file) { - users++; - if (1 == users) init_waitqueue_head(&read_queue); + struct cadet *dev = video_drvdata(file); + + dev->users++; + if (1 == dev->users) + init_waitqueue_head(&dev->read_queue); return 0; } -static int -cadet_release(struct file *file) +static int cadet_release(struct file *file) { - users--; - if (0 == users){ - del_timer_sync(&readtimer); - rdsstat=0; + struct cadet *dev = video_drvdata(file); + + dev->users--; + if (0 == dev->users) { + del_timer_sync(&dev->readtimer); + dev->rdsstat = 0; } return 0; } -static unsigned int -cadet_poll(struct file *file, struct poll_table_struct *wait) +static unsigned int cadet_poll(struct file *file, struct poll_table_struct *wait) { - poll_wait(file,&read_queue,wait); - if(rdsin != rdsout) + struct cadet *dev = video_drvdata(file); + + poll_wait(file, &dev->read_queue, wait); + if (dev->rdsin != dev->rdsout) return POLLIN | POLLRDNORM; return 0; } @@ -581,13 +575,6 @@ static const struct v4l2_ioctl_ops cadet_ioctl_ops = { .vidioc_s_input = vidioc_s_input, }; -static struct video_device cadet_radio = { - .name = "Cadet radio", - .fops = &cadet_fops, - .ioctl_ops = &cadet_ioctl_ops, - .release = video_device_release_empty, -}; - #ifdef CONFIG_PNP static struct pnp_device_id cadet_pnp_devices[] = { @@ -598,7 +585,7 @@ static struct pnp_device_id cadet_pnp_devices[] = { MODULE_DEVICE_TABLE(pnp, cadet_pnp_devices); -static int cadet_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id) +static int cadet_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) { if (!dev) return -ENODEV; @@ -606,13 +593,12 @@ static int cadet_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev if (io > 0) return -EBUSY; - if (!pnp_port_valid(dev, 0)) { + if (!pnp_port_valid(dev, 0)) return -ENODEV; - } io = pnp_port_start(dev, 0); - printk ("radio-cadet: PnP reports device at %#x\n", io); + printk(KERN_INFO "radio-cadet: PnP reports device at %#x\n", io); return io; } @@ -628,23 +614,23 @@ static struct pnp_driver cadet_pnp_driver = { static struct pnp_driver cadet_pnp_driver; #endif -static int cadet_probe(void) +static void cadet_probe(struct cadet *dev) { - 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]; - if (request_region(io, 2, "cadet-probe")) { - cadet_setfreq(1410); - if(cadet_getfreq()==1410) { - release_region(io, 2); - return io; + for (i = 0; i < 8; i++) { + dev->io = iovals[i]; + if (request_region(dev->io, 2, "cadet-probe")) { + cadet_setfreq(dev, 1410); + if (cadet_getfreq(dev) == 1410) { + release_region(dev->io, 2); + return; } - release_region(io, 2); + release_region(dev->io, 2); } } - return -1; + dev->io = -1; } /* @@ -654,59 +640,68 @@ static int cadet_probe(void) static int __init cadet_init(void) { - spin_lock_init(&cadet_io_lock); + struct cadet *dev = &cadet_card; + struct v4l2_device *v4l2_dev = &dev->v4l2_dev; + int res; - /* - * If a probe was requested then probe ISAPnP first (safest) - */ + strlcpy(v4l2_dev->name, "cadet", sizeof(v4l2_dev->name)); + mutex_init(&dev->lock); + + /* If a probe was requested then probe ISAPnP first (safest) */ if (io < 0) pnp_register_driver(&cadet_pnp_driver); - /* - * If that fails then probe unsafely if probe is requested - */ - if(io < 0) - io = cadet_probe (); + dev->io = io; - /* - * Else we bail out - */ + /* If that fails then probe unsafely if probe is requested */ + if (dev->io < 0) + cadet_probe(dev); - if(io < 0) { + /* Else we bail out */ + if (dev->io < 0) { #ifdef MODULE - printk(KERN_ERR "You must set an I/O address with io=0x???\n"); + v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n"); #endif goto fail; } - if (!request_region(io,2,"cadet")) + if (!request_region(dev->io, 2, "cadet")) + goto fail; + + res = v4l2_device_register(NULL, v4l2_dev); + if (res < 0) { + release_region(dev->io, 2); + v4l2_err(v4l2_dev, "could not register v4l2_device\n"); goto fail; - if (video_register_device(&cadet_radio, VFL_TYPE_RADIO, radio_nr) < 0) { - release_region(io,2); + } + + strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name)); + dev->vdev.v4l2_dev = v4l2_dev; + dev->vdev.fops = &cadet_fops; + dev->vdev.ioctl_ops = &cadet_ioctl_ops; + dev->vdev.release = video_device_release_empty; + video_set_drvdata(&dev->vdev, dev); + + if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) { + v4l2_device_unregister(v4l2_dev); + release_region(dev->io, 2); goto fail; } - printk(KERN_INFO "ADS Cadet Radio Card at 0x%x\n",io); + v4l2_info(v4l2_dev, "ADS Cadet Radio Card at 0x%x\n", dev->io); return 0; fail: pnp_unregister_driver(&cadet_pnp_driver); - return -1; + return -ENODEV; } - - -MODULE_AUTHOR("Fred Gleason, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath"); -MODULE_DESCRIPTION("A driver for the ADS Cadet AM/FM/RDS radio card."); -MODULE_LICENSE("GPL"); - -module_param(io, int, 0); -MODULE_PARM_DESC(io, "I/O address of Cadet card (0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e)"); -module_param(radio_nr, int, 0); - -static void __exit cadet_cleanup_module(void) +static void __exit cadet_exit(void) { - video_unregister_device(&cadet_radio); - release_region(io,2); + struct cadet *dev = &cadet_card; + + video_unregister_device(&dev->vdev); + v4l2_device_unregister(&dev->v4l2_dev); + release_region(dev->io, 2); pnp_unregister_driver(&cadet_pnp_driver); } module_init(cadet_init); -module_exit(cadet_cleanup_module); +module_exit(cadet_exit); |