diff options
| -rw-r--r-- | drivers/media/radio/radio-gemtek-pci.c | 330 |
1 files changed, 160 insertions, 170 deletions
diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c index 0c96bf8525b..dbc6097a51e 100644 --- a/drivers/media/radio/radio-gemtek-pci.c +++ b/drivers/media/radio/radio-gemtek-pci.c @@ -45,34 +45,26 @@ #include <linux/init.h> #include <linux/pci.h> #include <linux/videodev2.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> #include <linux/errno.h> - #include <linux/version.h> /* for KERNEL_VERSION MACRO */ -#define RADIO_VERSION KERNEL_VERSION(0,0,2) - -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 = 65535, - .step = 65535, - .default_value = 0xff, - .type = V4L2_CTRL_TYPE_INTEGER, - } -}; +#include <linux/io.h> +#include <linux/uaccess.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> -#include <asm/io.h> -#include <asm/uaccess.h> +MODULE_AUTHOR("Vladimir Shebordaev <vshebordaev@mail.ru>"); +MODULE_DESCRIPTION("The video4linux driver for the Gemtek PCI Radio Card"); +MODULE_LICENSE("GPL"); + +static int nr_radio = -1; +static int mx = 1; + +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"); + +#define RADIO_VERSION KERNEL_VERSION(0, 0, 2) #ifndef PCI_VENDOR_ID_GEMTEK #define PCI_VENDOR_ID_GEMTEK 0x5046 @@ -90,8 +82,11 @@ static struct v4l2_queryctrl radio_qctrl[] = { #define GEMTEK_PCI_RANGE_HIGH (108*16000) #endif -struct gemtek_pci_card { - struct video_device *videodev; +struct gemtek_pci { + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct mutex lock; + struct pci_dev *pdev; u32 iobase; u32 length; @@ -100,116 +95,133 @@ struct gemtek_pci_card { u8 mute; }; -static int nr_radio = -1; -static unsigned long in_use; +static inline struct gemtek_pci *to_gemtek_pci(struct v4l2_device *v4l2_dev) +{ + return container_of(v4l2_dev, struct gemtek_pci, v4l2_dev); +} -static inline u8 gemtek_pci_out( u16 value, u32 port ) +static inline u8 gemtek_pci_out(u16 value, u32 port) { - outw( value, 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 ) +#define _b0(v) (*((u8 *)&v)) + +static void __gemtek_pci_cmd(u16 value, u32 port, u8 *last_byte, int keep) { - register u8 byte = *last_byte; + u8 byte = *last_byte; - if ( !value ) { - if ( !keep ) + if (!value) { + if (!keep) value = (u16)port; byte &= 0xfd; } else byte |= 2; - _b0( value ) = byte; - outw( value, port ); + _b0(value) = byte; + outw(value, port); byte |= 1; - _b0( value ) = byte; - outw( value, port ); + _b0(value) = byte; + outw(value, port); byte &= 0xfe; - _b0( value ) = byte; - outw( value, port ); + _b0(value) = byte; + outw(value, port); *last_byte = byte; } -static inline void gemtek_pci_nil( u32 port, u8 *last_byte ) +static inline void gemtek_pci_nil(u32 port, u8 *last_byte) { - __gemtek_pci_cmd( 0x00, port, last_byte, false ); + __gemtek_pci_cmd(0x00, port, last_byte, false); } -static inline void gemtek_pci_cmd( u16 cmd, u32 port, u8 *last_byte ) +static inline void gemtek_pci_cmd(u16 cmd, u32 port, u8 *last_byte) { - __gemtek_pci_cmd( cmd, port, last_byte, true ); + __gemtek_pci_cmd(cmd, port, last_byte, true); } -static void gemtek_pci_setfrequency( struct gemtek_pci_card *card, unsigned long frequency ) +static void gemtek_pci_setfrequency(struct gemtek_pci *card, unsigned long frequency) { - register int i; - register u32 value = frequency / 200 + 856; - register u16 mask = 0x8000; + int i; + u32 value = frequency / 200 + 856; + u16 mask = 0x8000; u8 last_byte; u32 port = card->iobase; - last_byte = gemtek_pci_out( 0x06, port ); + mutex_lock(&card->lock); + card->current_frequency = frequency; + last_byte = gemtek_pci_out(0x06, port); i = 0; do { - gemtek_pci_nil( port, &last_byte ); + gemtek_pci_nil(port, &last_byte); i++; - } while ( i < 9 ); + } while (i < 9); i = 0; do { - gemtek_pci_cmd( value & mask, port, &last_byte ); + gemtek_pci_cmd(value & mask, port, &last_byte); mask >>= 1; i++; - } while ( i < 16 ); + } while (i < 16); - outw( 0x10, port ); + outw(0x10, port); + mutex_unlock(&card->lock); } -static inline void gemtek_pci_mute( struct gemtek_pci_card *card ) +static void gemtek_pci_mute(struct gemtek_pci *card) { - outb( 0x1f, card->iobase ); + mutex_lock(&card->lock); + outb(0x1f, card->iobase); card->mute = true; + mutex_unlock(&card->lock); } -static inline void gemtek_pci_unmute( struct gemtek_pci_card *card ) +static void gemtek_pci_unmute(struct gemtek_pci *card) { - if ( card->mute ) { - gemtek_pci_setfrequency( card, card->current_frequency ); + mutex_lock(&card->lock); + if (card->mute) { + gemtek_pci_setfrequency(card, card->current_frequency); card->mute = false; } + mutex_unlock(&card->lock); } -static inline unsigned int gemtek_pci_getsignal( struct gemtek_pci_card *card ) +static int gemtek_pci_getsignal(struct gemtek_pci *card) { - return ( inb( card->iobase ) & 0x08 ) ? 0 : 1; + int sig; + + mutex_lock(&card->lock); + sig = (inb(card->iobase) & 0x08) ? 0 : 1; + mutex_unlock(&card->lock); + return sig; } static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *v) { + struct gemtek_pci *card = video_drvdata(file); + strlcpy(v->driver, "radio-gemtek-pci", sizeof(v->driver)); strlcpy(v->card, "GemTek PCI Radio", sizeof(v->card)); - sprintf(v->bus_info, "ISA"); + snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(card->pdev)); v->version = RADIO_VERSION; - v->capabilities = V4L2_CAP_TUNER; + v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; return 0; } static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - struct gemtek_pci_card *card = video_drvdata(file); + struct gemtek_pci *card = video_drvdata(file); if (v->index > 0) return -EINVAL; - strcpy(v->name, "FM"); + strlcpy(v->name, "FM", sizeof(v->name)); v->type = V4L2_TUNER_RADIO; v->rangelow = GEMTEK_PCI_RANGE_LOW; v->rangehigh = GEMTEK_PCI_RANGE_HIGH; @@ -223,21 +235,18 @@ static int vidioc_g_tuner(struct file *file, void *priv, static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - if (v->index > 0) - return -EINVAL; - return 0; + return v->index ? -EINVAL : 0; } static int vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct gemtek_pci_card *card = video_drvdata(file); + struct gemtek_pci *card = video_drvdata(file); - if ( (f->frequency < GEMTEK_PCI_RANGE_LOW) || - (f->frequency > GEMTEK_PCI_RANGE_HIGH) ) + if (f->frequency < GEMTEK_PCI_RANGE_LOW || + f->frequency > GEMTEK_PCI_RANGE_HIGH) return -EINVAL; gemtek_pci_setfrequency(card, f->frequency); - card->current_frequency = f->frequency; card->mute = false; return 0; } @@ -245,7 +254,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct gemtek_pci_card *card = video_drvdata(file); + struct gemtek_pci *card = video_drvdata(file); f->type = V4L2_TUNER_RADIO; f->frequency = card->current_frequency; @@ -255,13 +264,11 @@ static int vidioc_g_frequency(struct file *file, void *priv, 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, 65535, 65535, 65535); } return -EINVAL; } @@ -269,7 +276,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct gemtek_pci_card *card = video_drvdata(file); + struct gemtek_pci *card = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -288,7 +295,7 @@ 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 gemtek_pci_card *card = video_drvdata(file); + struct gemtek_pci *card = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -307,17 +314,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv, return -EINVAL; } -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; @@ -326,17 +322,22 @@ 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; } enum { @@ -354,25 +355,22 @@ static struct pci_device_id gemtek_pci_id[] = { 0 } }; -MODULE_DEVICE_TABLE( pci, gemtek_pci_id ); - -static int mx = 1; +MODULE_DEVICE_TABLE(pci, gemtek_pci_id); -static int gemtek_pci_exclusive_open(struct file *file) +static int gemtek_pci_open(struct file *file) { - return test_and_set_bit(0, &in_use) ? -EBUSY : 0; + return 0; } -static int gemtek_pci_exclusive_release(struct file *file) +static int gemtek_pci_release(struct file *file) { - clear_bit(0, &in_use); return 0; } static const struct v4l2_file_operations gemtek_pci_fops = { .owner = THIS_MODULE, - .open = gemtek_pci_exclusive_open, - .release = gemtek_pci_exclusive_release, + .open = gemtek_pci_open, + .release = gemtek_pci_release, .ioctl = video_ioctl2, }; @@ -391,108 +389,100 @@ static const struct v4l2_ioctl_ops gemtek_pci_ioctl_ops = { .vidioc_s_ctrl = vidioc_s_ctrl, }; -static struct video_device vdev_template = { - .name = "Gemtek PCI Radio", - .fops = &gemtek_pci_fops, - .ioctl_ops = &gemtek_pci_ioctl_ops, - .release = video_device_release_empty, -}; - -static int __devinit gemtek_pci_probe( struct pci_dev *pci_dev, const struct pci_device_id *pci_id ) +static int __devinit gemtek_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) { - struct gemtek_pci_card *card; - struct video_device *devradio; + struct gemtek_pci *card; + struct v4l2_device *v4l2_dev; + int res; - if ( (card = kzalloc( sizeof( struct gemtek_pci_card ), GFP_KERNEL )) == NULL ) { - printk( KERN_ERR "gemtek_pci: out of memory\n" ); + card = kzalloc(sizeof(struct gemtek_pci), GFP_KERNEL); + if (card == NULL) { + dev_err(&pdev->dev, "out of memory\n"); return -ENOMEM; } - if ( pci_enable_device( pci_dev ) ) - goto err_pci; + v4l2_dev = &card->v4l2_dev; + mutex_init(&card->lock); + card->pdev = pdev; - card->iobase = pci_resource_start( pci_dev, 0 ); - card->length = pci_resource_len( pci_dev, 0 ); + strlcpy(v4l2_dev->name, "gemtek_pci", sizeof(v4l2_dev->name)); - 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; + res = v4l2_device_register(&pdev->dev, v4l2_dev); + if (res < 0) { + v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); + kfree(card); + return res; } - pci_set_drvdata( pci_dev, card ); + if (pci_enable_device(pdev)) + goto err_pci; - if ( (devradio = kmalloc( sizeof( struct video_device ), GFP_KERNEL )) == NULL ) { - printk( KERN_ERR "gemtek_pci: out of memory\n" ); - goto err_video; + card->iobase = pci_resource_start(pdev, 0); + card->length = pci_resource_len(pdev, 0); + + if (request_region(card->iobase, card->length, card_names[pci_id->driver_data]) == NULL) { + v4l2_err(v4l2_dev, "i/o port already in use\n"); + goto err_pci; } - *devradio = vdev_template; - if (video_register_device(devradio, VFL_TYPE_RADIO, nr_radio) < 0) { - kfree( devradio ); + strlcpy(card->vdev.name, v4l2_dev->name, sizeof(card->vdev.name)); + card->vdev.v4l2_dev = v4l2_dev; + card->vdev.fops = &gemtek_pci_fops; + card->vdev.ioctl_ops = &gemtek_pci_ioctl_ops; + card->vdev.release = video_device_release_empty; + video_set_drvdata(&card->vdev, card); + + if (video_register_device(&card->vdev, VFL_TYPE_RADIO, nr_radio) < 0) goto err_video; - } - card->videodev = devradio; - video_set_drvdata(devradio, card); - gemtek_pci_mute( card ); + gemtek_pci_mute(card); - printk( KERN_INFO "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n", - pci_dev->revision, card->iobase, card->iobase + card->length - 1 ); + v4l2_info(v4l2_dev, "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n", + pdev->revision, card->iobase, card->iobase + card->length - 1); return 0; err_video: - release_region( card->iobase, card->length ); + release_region(card->iobase, card->length); err_pci: - kfree( card ); + v4l2_device_unregister(v4l2_dev); + kfree(card); return -ENODEV; } -static void __devexit gemtek_pci_remove( struct pci_dev *pci_dev ) +static void __devexit gemtek_pci_remove(struct pci_dev *pdev) { - struct gemtek_pci_card *card = pci_get_drvdata( pci_dev ); + struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev); + struct gemtek_pci *card = to_gemtek_pci(v4l2_dev); - video_unregister_device( card->videodev ); - kfree( card->videodev ); + video_unregister_device(&card->vdev); + v4l2_device_unregister(v4l2_dev); - release_region( card->iobase, card->length ); + release_region(card->iobase, card->length); - if ( mx ) - gemtek_pci_mute( card ); + if (mx) + gemtek_pci_mute(card); - kfree( card ); - - pci_set_drvdata( pci_dev, NULL ); + kfree(card); } -static struct pci_driver gemtek_pci_driver = -{ +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 ) +static int __init gemtek_pci_init(void) { - return pci_register_driver( &gemtek_pci_driver ); + return pci_register_driver(&gemtek_pci_driver); } -static void __exit gemtek_pci_cleanup_module( void ) +static void __exit gemtek_pci_exit(void) { 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 ); - +module_init(gemtek_pci_init); +module_exit(gemtek_pci_exit); |