mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 17:51:43 +00:00
[PATCH] media-radio: Pci probing for maestro radio
- Pci probing functions added, some functions were rewrited. - Use PCI_DEVICE macro. - dev_* used for printing when pci_dev available. - some static variables changed to dynamicto allow operation with multiple cards. - Deleted macros for DEVICE_IDS, they are in pci_ids.h yet. 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>
This commit is contained in:
Jiri Slaby
Linus Torvalds
parent
a0d50069ed
commit
89dad8f07f
@ -27,11 +27,7 @@
|
||||
#include <linux/pci.h>
|
||||
#include <linux/videodev.h>
|
||||
|
||||
#define DRIVER_VERSION "0.04"
|
||||
|
||||
#define PCI_VENDOR_ESS 0x125D
|
||||
#define PCI_DEVICE_ID_ESS_ESS1968 0x1968 /* Maestro 2 */
|
||||
#define PCI_DEVICE_ID_ESS_ESS1978 0x1978 /* Maestro 2E */
|
||||
#define DRIVER_VERSION "0.05"
|
||||
|
||||
#define GPIO_DATA 0x60 /* port offset from ESS_IO_BASE */
|
||||
|
||||
@ -66,6 +62,26 @@ module_param(radio_nr, int, 0);
|
||||
|
||||
static int radio_ioctl(struct inode *inode, struct file *file,
|
||||
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);
|
||||
|
||||
static struct pci_device_id maestro_r_pci_tbl[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1968),
|
||||
.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
|
||||
.class_mask = 0xffff00 },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1978),
|
||||
.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
|
||||
.class_mask = 0xffff00 },
|
||||
{ 0 }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(pci, maestro_r_pci_tbl);
|
||||
|
||||
static struct pci_driver maestro_r_driver = {
|
||||
.name = "maestro_radio",
|
||||
.id_table = maestro_r_pci_tbl,
|
||||
.probe = maestro_probe,
|
||||
.remove = __devexit_p(maestro_remove),
|
||||
};
|
||||
|
||||
static struct file_operations maestro_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
@ -85,14 +101,14 @@ static struct video_device maestro_radio=
|
||||
.fops = &maestro_fops,
|
||||
};
|
||||
|
||||
static 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;
|
||||
} radio_unit = {0, 0, 0, 0, };
|
||||
};
|
||||
|
||||
static __u32 radio_bits_get(struct radio_device *dev)
|
||||
{
|
||||
@ -251,40 +267,7 @@ static int radio_ioctl(struct inode *inode, struct file *file,
|
||||
return ret;
|
||||
}
|
||||
|
||||
static __u16 radio_install(struct pci_dev *pcidev);
|
||||
|
||||
MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
|
||||
MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
static void __exit maestro_radio_exit(void)
|
||||
{
|
||||
video_unregister_device(&maestro_radio);
|
||||
}
|
||||
|
||||
static int __init maestro_radio_init(void)
|
||||
{
|
||||
register __u16 found=0;
|
||||
struct pci_dev *pcidev = NULL;
|
||||
while(!found && (pcidev = pci_find_device(PCI_VENDOR_ESS,
|
||||
PCI_DEVICE_ID_ESS_ESS1968,
|
||||
pcidev)))
|
||||
found |= radio_install(pcidev);
|
||||
while(!found && (pcidev = pci_find_device(PCI_VENDOR_ESS,
|
||||
PCI_DEVICE_ID_ESS_ESS1978,
|
||||
pcidev)))
|
||||
found |= radio_install(pcidev);
|
||||
if(!found) {
|
||||
printk(KERN_INFO "radio-maestro: no devices found.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
module_init(maestro_radio_init);
|
||||
module_exit(maestro_radio_exit);
|
||||
|
||||
static inline __u16 radio_power_on(struct radio_device *dev)
|
||||
static __u16 __devinit radio_power_on(struct radio_device *dev)
|
||||
{
|
||||
register __u16 io=dev->io;
|
||||
register __u32 ofreq;
|
||||
@ -305,29 +288,93 @@ static inline __u16 radio_power_on(struct radio_device *dev)
|
||||
return (ofreq == radio_bits_get(dev));
|
||||
}
|
||||
|
||||
static __u16 radio_install(struct pci_dev *pcidev)
|
||||
static int __devinit maestro_probe(struct pci_dev *pdev,
|
||||
const struct pci_device_id *ent)
|
||||
{
|
||||
if(((pcidev->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
|
||||
return 0;
|
||||
|
||||
radio_unit.io = pcidev->resource[0].start + GPIO_DATA;
|
||||
maestro_radio.priv = &radio_unit;
|
||||
init_MUTEX(&radio_unit.lock);
|
||||
|
||||
if(radio_power_on(&radio_unit)) {
|
||||
if(video_register_device(&maestro_radio, VFL_TYPE_RADIO, radio_nr)==-1) {
|
||||
printk("radio-maestro: can't register device!");
|
||||
return 0;
|
||||
}
|
||||
printk(KERN_INFO "radio-maestro: version "
|
||||
DRIVER_VERSION
|
||||
" time "
|
||||
__TIME__ " "
|
||||
__DATE__
|
||||
"\n");
|
||||
printk(KERN_INFO "radio-maestro: radio chip initialized\n");
|
||||
return 1;
|
||||
} else
|
||||
return 0;
|
||||
struct radio_device *radio_unit;
|
||||
struct video_device *maestro_radio_inst;
|
||||
int retval;
|
||||
|
||||
retval = pci_enable_device(pdev);
|
||||
if (retval) {
|
||||
dev_err(&pdev->dev, "enabling pci device failed!\n");
|
||||
goto err;
|
||||
}
|
||||
|
||||
retval = -ENOMEM;
|
||||
|
||||
radio_unit = kzalloc(sizeof(*radio_unit), GFP_KERNEL);
|
||||
if (radio_unit == NULL) {
|
||||
dev_err(&pdev->dev, "not enough memory\n");
|
||||
goto err;
|
||||
}
|
||||
|
||||
radio_unit->io = pci_resource_start(pdev, 0) + GPIO_DATA;
|
||||
init_MUTEX(&radio_unit->lock);
|
||||
|
||||
maestro_radio_inst = video_device_alloc();
|
||||
if (maestro_radio_inst == NULL) {
|
||||
dev_err(&pdev->dev, "not enough memory\n");
|
||||
goto errfr;
|
||||
}
|
||||
|
||||
memcpy(maestro_radio_inst, &maestro_radio, sizeof(maestro_radio));
|
||||
video_set_drvdata(maestro_radio_inst, radio_unit);
|
||||
pci_set_drvdata(pdev, maestro_radio_inst);
|
||||
|
||||
retval = video_register_device(maestro_radio_inst, VFL_TYPE_RADIO,
|
||||
radio_nr);
|
||||
if (retval) {
|
||||
printk(KERN_ERR "can't register video device!\n");
|
||||
goto errfr1;
|
||||
}
|
||||
|
||||
if (!radio_power_on(radio_unit)) {
|
||||
retval = -EIO;
|
||||
goto errunr;
|
||||
}
|
||||
|
||||
dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ " "
|
||||
__DATE__ "\n");
|
||||
dev_info(&pdev->dev, "radio chip initialized\n");
|
||||
|
||||
return 0;
|
||||
errunr:
|
||||
video_unregister_device(maestro_radio_inst);
|
||||
errfr1:
|
||||
kfree(maestro_radio_inst);
|
||||
errfr:
|
||||
kfree(radio_unit);
|
||||
err:
|
||||
return retval;
|
||||
|
||||
}
|
||||
|
||||
static void __devexit maestro_remove(struct pci_dev *pdev)
|
||||
{
|
||||
struct video_device *vdev = pci_get_drvdata(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);
|
||||
|
||||
if (retval)
|
||||
printk(KERN_ERR "error during registration pci driver\n");
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static void __exit maestro_radio_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&maestro_r_driver);
|
||||
}
|
||||
|
||||
module_init(maestro_radio_init);
|
||||
module_exit(maestro_radio_exit);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user