diff options
Diffstat (limited to 'drivers/media/radio/radio-gemtek-pci.c')
| -rw-r--r-- | drivers/media/radio/radio-gemtek-pci.c | 416 |
1 files changed, 0 insertions, 416 deletions
diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c deleted file mode 100644 index 630cc786d0a..00000000000 --- a/drivers/media/radio/radio-gemtek-pci.c +++ /dev/null @@ -1,416 +0,0 @@ -/* - *************************************************************************** - * - * radio-gemtek-pci.c - Gemtek PCI Radio driver - * (C) 2001 Vladimir Shebordaev <vshebordaev@mail.ru> - * - *************************************************************************** - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, - * USA. - * - *************************************************************************** - * - * Gemtek Corp still silently refuses to release any specifications - * of their multimedia devices, so the protocol still has to be - * reverse engineered. - * - * The v4l code was inspired by Jonas Munsin's Gemtek serial line - * radio device driver. - * - * Please, let me know if this piece of code was useful :) - * - * TODO: multiple device support and portability were not tested - * - *************************************************************************** - */ - -#include <linux/config.h> -#include <linux/types.h> -#include <linux/list.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/videodev.h> -#include <linux/errno.h> - -#include <asm/io.h> -#include <asm/uaccess.h> - -#ifndef PCI_VENDOR_ID_GEMTEK -#define PCI_VENDOR_ID_GEMTEK 0x5046 -#endif - -#ifndef PCI_DEVICE_ID_GEMTEK_PR103 -#define PCI_DEVICE_ID_GEMTEK_PR103 0x1001 -#endif - -#ifndef GEMTEK_PCI_RANGE_LOW -#define GEMTEK_PCI_RANGE_LOW (87*16000) -#endif - -#ifndef GEMTEK_PCI_RANGE_HIGH -#define GEMTEK_PCI_RANGE_HIGH (108*16000) -#endif - -#ifndef TRUE -#define TRUE (1) -#endif - -#ifndef FALSE -#define FALSE (0) -#endif - -struct gemtek_pci_card { - struct video_device *videodev; - - u32 iobase; - u32 length; - u8 chiprev; - u16 model; - - u32 current_frequency; - u8 mute; -}; - -static const char rcsid[] = "$Id: radio-gemtek-pci.c,v 1.1 2001/07/23 08:08:16 ted Exp ted $"; - -static int nr_radio = -1; - -static inline u8 gemtek_pci_out( u16 value, u32 port ) -{ - outw( value, port ); - - return (u8)value; -} - -#define _b0( v ) *((u8 *)&v) -static void __gemtek_pci_cmd( u16 value, u32 port, u8 *last_byte, int keep ) -{ - register u8 byte = *last_byte; - - if ( !value ) { - if ( !keep ) - value = (u16)port; - byte &= 0xfd; - } else - byte |= 2; - - _b0( value ) = byte; - outw( value, port ); - byte |= 1; - _b0( value ) = byte; - outw( value, port ); - byte &= 0xfe; - _b0( value ) = byte; - outw( value, port ); - - *last_byte = byte; -} - -static inline void gemtek_pci_nil( u32 port, u8 *last_byte ) -{ - __gemtek_pci_cmd( 0x00, port, last_byte, FALSE ); -} - -static inline void gemtek_pci_cmd( u16 cmd, u32 port, u8 *last_byte ) -{ - __gemtek_pci_cmd( cmd, port, last_byte, TRUE ); -} - -static void gemtek_pci_setfrequency( struct gemtek_pci_card *card, unsigned long frequency ) -{ - register int i; - register u32 value = frequency / 200 + 856; - register u16 mask = 0x8000; - u8 last_byte; - u32 port = card->iobase; - - last_byte = gemtek_pci_out( 0x06, port ); - - i = 0; - do { - gemtek_pci_nil( port, &last_byte ); - i++; - } while ( i < 9 ); - - i = 0; - do { - gemtek_pci_cmd( value & mask, port, &last_byte ); - mask >>= 1; - i++; - } while ( i < 16 ); - - outw( 0x10, port ); -} - - -static inline void gemtek_pci_mute( struct gemtek_pci_card *card ) -{ - outb( 0x1f, card->iobase ); - card->mute = TRUE; -} - -static inline void gemtek_pci_unmute( struct gemtek_pci_card *card ) -{ - if ( card->mute ) { - gemtek_pci_setfrequency( card, card->current_frequency ); - card->mute = FALSE; - } -} - -static inline unsigned int gemtek_pci_getsignal( struct gemtek_pci_card *card ) -{ - return ( inb( card->iobase ) & 0x08 ) ? 0 : 1; -} - -static int gemtek_pci_do_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, void *arg) -{ - struct video_device *dev = video_devdata(file); - struct gemtek_pci_card *card = dev->priv; - - switch ( cmd ) { - case VIDIOCGCAP: - { - struct video_capability *c = arg; - - memset(c,0,sizeof(*c)); - c->type = VID_TYPE_TUNER; - c->channels = 1; - c->audios = 1; - strcpy( c->name, "Gemtek PCI Radio" ); - return 0; - } - - case VIDIOCGTUNER: - { - struct video_tuner *t = arg; - - if ( t->tuner ) - return -EINVAL; - - t->rangelow = GEMTEK_PCI_RANGE_LOW; - t->rangehigh = GEMTEK_PCI_RANGE_HIGH; - t->flags = VIDEO_TUNER_LOW; - t->mode = VIDEO_MODE_AUTO; - t->signal = 0xFFFF * gemtek_pci_getsignal( card ); - strcpy( t->name, "FM" ); - return 0; - } - - case VIDIOCSTUNER: - { - struct video_tuner *t = arg; - if ( t->tuner ) - return -EINVAL; - return 0; - } - - case VIDIOCGFREQ: - { - unsigned long *freq = arg; - *freq = card->current_frequency; - return 0; - } - case VIDIOCSFREQ: - { - unsigned long *freq = arg; - - if ( (*freq < GEMTEK_PCI_RANGE_LOW) || - (*freq > GEMTEK_PCI_RANGE_HIGH) ) - return -EINVAL; - - gemtek_pci_setfrequency( card, *freq ); - card->current_frequency = *freq; - card->mute = FALSE; - - return 0; - } - - case VIDIOCGAUDIO: - { - struct video_audio *a = arg; - - memset( a, 0, sizeof( *a ) ); - a->flags |= VIDEO_AUDIO_MUTABLE; - a->volume = 1; - a->step = 65535; - strcpy( a->name, "Radio" ); - return 0; - } - - case VIDIOCSAUDIO: - { - struct video_audio *a = arg; - - if ( a->audio ) - return -EINVAL; - - if ( a->flags & VIDEO_AUDIO_MUTE ) - gemtek_pci_mute( card ); - else - gemtek_pci_unmute( card ); - return 0; - } - - default: - return -ENOIOCTLCMD; - } -} - -static int gemtek_pci_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - return video_usercopy(inode, file, cmd, arg, gemtek_pci_do_ioctl); -} - -enum { - GEMTEK_PR103 -}; - -static char *card_names[] __devinitdata = { - "GEMTEK_PR103" -}; - -static struct pci_device_id gemtek_pci_id[] = -{ - { PCI_VENDOR_ID_GEMTEK, PCI_DEVICE_ID_GEMTEK_PR103, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, GEMTEK_PR103 }, - { 0 } -}; - -MODULE_DEVICE_TABLE( pci, gemtek_pci_id ); - -static int mx = 1; - -static struct file_operations gemtek_pci_fops = { - .owner = THIS_MODULE, - .open = video_exclusive_open, - .release = video_exclusive_release, - .ioctl = gemtek_pci_ioctl, - .llseek = no_llseek, -}; - -static struct video_device vdev_template = { - .owner = THIS_MODULE, - .name = "Gemtek PCI Radio", - .type = VID_TYPE_TUNER, - .hardware = VID_HARDWARE_GEMTEK, - .fops = &gemtek_pci_fops, -}; - -static int __devinit gemtek_pci_probe( struct pci_dev *pci_dev, const struct pci_device_id *pci_id ) -{ - struct gemtek_pci_card *card; - struct video_device *devradio; - - if ( (card = kmalloc( sizeof( struct gemtek_pci_card ), GFP_KERNEL )) == NULL ) { - printk( KERN_ERR "gemtek_pci: out of memory\n" ); - return -ENOMEM; - } - memset( card, 0, sizeof( struct gemtek_pci_card ) ); - - if ( pci_enable_device( pci_dev ) ) - goto err_pci; - - card->iobase = pci_resource_start( pci_dev, 0 ); - card->length = pci_resource_len( pci_dev, 0 ); - - if ( request_region( card->iobase, card->length, card_names[pci_id->driver_data] ) == NULL ) { - printk( KERN_ERR "gemtek_pci: i/o port already in use\n" ); - goto err_pci; - } - - pci_read_config_byte( pci_dev, PCI_REVISION_ID, &card->chiprev ); - pci_read_config_word( pci_dev, PCI_SUBSYSTEM_ID, &card->model ); - - pci_set_drvdata( pci_dev, card ); - - if ( (devradio = kmalloc( sizeof( struct video_device ), GFP_KERNEL )) == NULL ) { - printk( KERN_ERR "gemtek_pci: out of memory\n" ); - goto err_video; - } - *devradio = vdev_template; - - if ( video_register_device( devradio, VFL_TYPE_RADIO , nr_radio) == -1 ) { - kfree( devradio ); - goto err_video; - } - - card->videodev = devradio; - devradio->priv = card; - gemtek_pci_mute( card ); - - printk( KERN_INFO "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n", - card->chiprev, card->iobase, card->iobase + card->length - 1 ); - - return 0; - -err_video: - release_region( card->iobase, card->length ); - -err_pci: - kfree( card ); - return -ENODEV; -} - -static void __devexit gemtek_pci_remove( struct pci_dev *pci_dev ) -{ - struct gemtek_pci_card *card = pci_get_drvdata( pci_dev ); - - video_unregister_device( card->videodev ); - kfree( card->videodev ); - - release_region( card->iobase, card->length ); - - if ( mx ) - gemtek_pci_mute( card ); - - kfree( card ); - - pci_set_drvdata( pci_dev, NULL ); -} - -static struct pci_driver gemtek_pci_driver = -{ - .name = "gemtek_pci", - .id_table = gemtek_pci_id, - .probe = gemtek_pci_probe, - .remove = __devexit_p(gemtek_pci_remove), -}; - -static int __init gemtek_pci_init_module( void ) -{ - return pci_module_init( &gemtek_pci_driver ); -} - -static void __exit gemtek_pci_cleanup_module( void ) -{ - return pci_unregister_driver( &gemtek_pci_driver ); -} - -MODULE_AUTHOR( "Vladimir Shebordaev <vshebordaev@mail.ru>" ); -MODULE_DESCRIPTION( "The video4linux driver for the Gemtek PCI Radio Card" ); -MODULE_LICENSE("GPL"); - -module_param(mx, bool, 0); -MODULE_PARM_DESC( mx, "single digit: 1 - turn off the turner upon module exit (default), 0 - do not" ); -module_param(nr_radio, int, 0); -MODULE_PARM_DESC( nr_radio, "video4linux device number to use"); - -module_init( gemtek_pci_init_module ); -module_exit( gemtek_pci_cleanup_module ); - |