[PATCH] media-radio: Maestro radio Lindent

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>

diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c
index bf8b592..84da5ad 100644 (file)
--- a/drivers/media/radio/radio-maestro.c
+++ b/drivers/media/radio/radio-maestro.c
@@ -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 */
@@ -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);
 
@@ -92,22 +92,20 @@ 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)
@@ -115,6 +113,7 @@ 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);
@@ -137,10 +136,13 @@ 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;
 }
 
@@ -148,6 +150,7 @@ 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);
@@ -163,8 +166,10 @@ 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);
@@ -172,108 +177,103 @@ static void radio_bits_set(struct radio_device *dev, __u32 data)
 }
 
 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);
@@ -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));
 }
 
@@ -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;
@@ -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);
@@ -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");