diff options
Diffstat (limited to 'drivers/media/radio')
| -rw-r--r-- | drivers/media/radio/radio-maestro.c | 175 |
1 files changed, 111 insertions, 64 deletions
diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c index c30effd..bf8b592 100644 --- a/drivers/media/radio/radio-maestro.c +++ b/drivers/media/radio/radio-maestro.c @@ -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); |
