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[PATCH] media-radio: Maestro radio Lindent
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Maestro radio Lindent + some handwork

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jiri Slaby authored and Linus Torvalds committed Jan 10, 2006
1 parent 89dad8f commit 6a2cf8e
Showing 1 changed file with 105 additions and 103 deletions.
208 changes: 105 additions & 103 deletions drivers/media/radio/radio-maestro.c
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Original file line number Diff line number Diff line change
Expand Up @@ -29,28 +29,28 @@

#define DRIVER_VERSION "0.05"

#define GPIO_DATA 0x60 /* port offset from ESS_IO_BASE */
#define GPIO_DATA 0x60 /* port offset from ESS_IO_BASE */

#define IO_MASK 4 /* mask register offset from GPIO_DATA
bits 1=unmask write to given bit */
#define IO_DIR 8 /* direction register offset from GPIO_DATA
bits 0/1=read/write direction */

#define GPIO6 0x0040 /* mask bits for GPIO lines */
#define GPIO7 0x0080
#define GPIO8 0x0100
#define GPIO9 0x0200
#define GPIO6 0x0040 /* mask bits for GPIO lines */
#define GPIO7 0x0080
#define GPIO8 0x0100
#define GPIO9 0x0200

#define STR_DATA GPIO6 /* radio TEA5757 pins and GPIO bits */
#define STR_CLK GPIO7
#define STR_WREN GPIO8
#define STR_MOST GPIO9
#define STR_DATA GPIO6 /* radio TEA5757 pins and GPIO bits */
#define STR_CLK GPIO7
#define STR_WREN GPIO8
#define STR_MOST GPIO9

#define FREQ_LO 50*16000
#define FREQ_HI 150*16000

#define FREQ_IF 171200 /* 10.7*16000 */
#define FREQ_STEP 200 /* 12.5*16 */
#define FREQ_IF 171200 /* 10.7*16000 */
#define FREQ_STEP 200 /* 12.5*16 */

#define FREQ2BITS(x) ((((unsigned int)(x)+FREQ_IF+(FREQ_STEP<<1))\
/(FREQ_STEP<<2))<<2) /* (x==fmhz*16*1000) -> bits */
Expand All @@ -61,7 +61,7 @@ static int radio_nr = -1;
module_param(radio_nr, int, 0);

static int radio_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg);
unsigned int cmd, unsigned long arg);
static int maestro_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static void maestro_remove(struct pci_dev *pdev);

Expand Down Expand Up @@ -92,29 +92,28 @@ static struct file_operations maestro_fops = {
.llseek = no_llseek,
};

static struct video_device maestro_radio=
{
static struct video_device maestro_radio = {
.owner = THIS_MODULE,
.name = "Maestro radio",
.type = VID_TYPE_TUNER,
.hardware = VID_HARDWARE_SF16MI,
.fops = &maestro_fops,
.fops = &maestro_fops,
};

struct radio_device
{
struct radio_device {
__u16 io, /* base of Maestro card radio io (GPIO_DATA)*/
muted, /* VIDEO_AUDIO_MUTE */
stereo, /* VIDEO_TUNER_STEREO_ON */
tuned; /* signal strength (0 or 0xffff) */
struct semaphore lock;
struct semaphore lock;
};

static __u32 radio_bits_get(struct radio_device *dev)
{
register __u16 io=dev->io, l, rdata;
register __u32 data=0;
__u16 omask;

omask = inw(io + IO_MASK);
outw(~(STR_CLK | STR_WREN), io + IO_MASK);
outw(0, io);
Expand All @@ -137,17 +136,21 @@ static __u32 radio_bits_get(struct radio_device *dev)
data++;
udelay(2);
}

if(dev->muted)
outw(STR_WREN, io);

udelay(4);
outw(omask, io + IO_MASK);

return data & 0x3ffe;
}

static void radio_bits_set(struct radio_device *dev, __u32 data)
{
register __u16 io=dev->io, l, bits;
__u16 omask, odir;

omask = inw(io + IO_MASK);
odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
outw(odir | STR_DATA, io + IO_DIR);
Expand All @@ -163,117 +166,114 @@ static void radio_bits_set(struct radio_device *dev, __u32 data)
outw(bits, io); /* LO level */
udelay(4);
}

if(!dev->muted)
outw(0, io);

udelay(4);
outw(omask, io + IO_MASK);
outw(odir, io + IO_DIR);
msleep(125);
}

static inline int radio_function(struct inode *inode, struct file *file,
unsigned int cmd, void *arg)
unsigned int cmd, void *arg)
{
struct video_device *dev = video_devdata(file);
struct radio_device *card=dev->priv;

switch(cmd) {
case VIDIOCGCAP: {
struct video_capability *v = arg;
memset(v,0,sizeof(*v));
strcpy(v->name, "Maestro radio");
v->type=VID_TYPE_TUNER;
v->channels=v->audios=1;
return 0;
}
case VIDIOCGTUNER: {
struct video_tuner *v = arg;
if(v->tuner)
return -EINVAL;
(void)radio_bits_get(card);
v->flags = VIDEO_TUNER_LOW | card->stereo;
v->signal = card->tuned;
strcpy(v->name, "FM");
v->rangelow = FREQ_LO;
v->rangehigh = FREQ_HI;
v->mode = VIDEO_MODE_AUTO;
return 0;
}
case VIDIOCSTUNER: {
struct video_tuner *v = arg;
if(v->tuner!=0)
return -EINVAL;
return 0;
}
case VIDIOCGFREQ: {
unsigned long *freq = arg;
*freq = BITS2FREQ(radio_bits_get(card));
return 0;
}
case VIDIOCSFREQ: {
unsigned long *freq = arg;
if (*freq<FREQ_LO || *freq>FREQ_HI )
return -EINVAL;
radio_bits_set(card, FREQ2BITS(*freq));
struct radio_device *card = dev->priv;

switch (cmd) {
case VIDIOCGCAP: {
struct video_capability *v = arg;
memset(v, 0, sizeof(*v));
strcpy(v->name, "Maestro radio");
v->type = VID_TYPE_TUNER;
v->channels = v->audios = 1;
return 0;
} case VIDIOCGTUNER: {
struct video_tuner *v = arg;
if (v->tuner)
return -EINVAL;
(void)radio_bits_get(card);
v->flags = VIDEO_TUNER_LOW | card->stereo;
v->signal = card->tuned;
strcpy(v->name, "FM");
v->rangelow = FREQ_LO;
v->rangehigh = FREQ_HI;
v->mode = VIDEO_MODE_AUTO;
return 0;
} case VIDIOCSTUNER: {
struct video_tuner *v = arg;
if (v->tuner != 0)
return -EINVAL;
return 0;
} case VIDIOCGFREQ: {
unsigned long *freq = arg;
*freq = BITS2FREQ(radio_bits_get(card));
return 0;
} case VIDIOCSFREQ: {
unsigned long *freq = arg;
if (*freq < FREQ_LO || *freq > FREQ_HI)
return -EINVAL;
radio_bits_set(card, FREQ2BITS(*freq));
return 0;
} case VIDIOCGAUDIO: {
struct video_audio *v = arg;
memset(v, 0, sizeof(*v));
strcpy(v->name, "Radio");
v->flags = VIDEO_AUDIO_MUTABLE | card->muted;
v->mode = VIDEO_SOUND_STEREO;
return 0;
} case VIDIOCSAUDIO: {
struct video_audio *v = arg;
if (v->audio)
return -EINVAL;
{
register __u16 io = card->io;
register __u16 omask = inw(io + IO_MASK);
outw(~STR_WREN, io + IO_MASK);
outw((card->muted = v->flags & VIDEO_AUDIO_MUTE) ?
STR_WREN : 0, io);
udelay(4);
outw(omask, io + IO_MASK);
msleep(125);
return 0;
}
case VIDIOCGAUDIO: {
struct video_audio *v = arg;
memset(v,0,sizeof(*v));
strcpy(v->name, "Radio");
v->flags=VIDEO_AUDIO_MUTABLE | card->muted;
v->mode=VIDEO_SOUND_STEREO;
return 0;
}
case VIDIOCSAUDIO: {
struct video_audio *v = arg;
if(v->audio)
return -EINVAL;
{
register __u16 io=card->io;
register __u16 omask = inw(io + IO_MASK);
outw(~STR_WREN, io + IO_MASK);
outw((card->muted = v->flags & VIDEO_AUDIO_MUTE)
? STR_WREN : 0, io);
udelay(4);
outw(omask, io + IO_MASK);
msleep(125);
return 0;
}
}
case VIDIOCGUNIT: {
struct video_unit *v = arg;
v->video=VIDEO_NO_UNIT;
v->vbi=VIDEO_NO_UNIT;
v->radio=dev->minor;
v->audio=0;
v->teletext=VIDEO_NO_UNIT;
return 0;
}
default: return -ENOIOCTLCMD;
} case VIDIOCGUNIT: {
struct video_unit *v = arg;
v->video = VIDEO_NO_UNIT;
v->vbi = VIDEO_NO_UNIT;
v->radio = dev->minor;
v->audio = 0;
v->teletext = VIDEO_NO_UNIT;
return 0;
} default:
return -ENOIOCTLCMD;
}
}

static int radio_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
unsigned int cmd, unsigned long arg)
{
struct video_device *dev = video_devdata(file);
struct radio_device *card=dev->priv;
struct radio_device *card = dev->priv;
int ret;

down(&card->lock);
ret = video_usercopy(inode, file, cmd, arg, radio_function);
up(&card->lock);

return ret;
}

static __u16 __devinit radio_power_on(struct radio_device *dev)
{
register __u16 io=dev->io;
register __u16 io = dev->io;
register __u32 ofreq;
__u16 omask, odir;

omask = inw(io + IO_MASK);
odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
outw(odir & ~STR_WREN, io + IO_DIR);
dev->muted = inw(io) & STR_WREN ? 0 : VIDEO_AUDIO_MUTE;
outw(odir, io + IO_DIR);
Expand All @@ -282,9 +282,11 @@ static __u16 __devinit radio_power_on(struct radio_device *dev)
udelay(16);
outw(omask, io + IO_MASK);
ofreq = radio_bits_get(dev);
if((ofreq<FREQ2BITS(FREQ_LO)) || (ofreq>FREQ2BITS(FREQ_HI)))

if ((ofreq < FREQ2BITS(FREQ_LO)) || (ofreq > FREQ2BITS(FREQ_HI)))
ofreq = FREQ2BITS(FREQ_LO);
radio_bits_set(dev, ofreq);

return (ofreq == radio_bits_get(dev));
}

Expand Down Expand Up @@ -335,7 +337,7 @@ static int __devinit maestro_probe(struct pci_dev *pdev,
}

dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ " "
__DATE__ "\n");
__DATE__ "\n");
dev_info(&pdev->dev, "radio chip initialized\n");

return 0;
Expand All @@ -357,10 +359,6 @@ static void __devexit maestro_remove(struct pci_dev *pdev)
video_unregister_device(vdev);
}

MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
MODULE_LICENSE("GPL");

static int __init maestro_radio_init(void)
{
int retval = pci_register_driver(&maestro_r_driver);
Expand All @@ -378,3 +376,7 @@ static void __exit maestro_radio_exit(void)

module_init(maestro_radio_init);
module_exit(maestro_radio_exit);

MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
MODULE_LICENSE("GPL");

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