diff options
Diffstat (limited to 'drivers/media/radio/radio-maestro.c')
-rw-r--r-- | drivers/media/radio/radio-maestro.c | 390 |
1 files changed, 219 insertions, 171 deletions
diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c index c30effdf711..36c9f5bf8cd 100644 --- a/drivers/media/radio/radio-maestro.c +++ b/drivers/media/radio/radio-maestro.c @@ -27,34 +27,30 @@ #include <linux/pci.h> #include <linux/videodev.h> -#define DRIVER_VERSION "0.04" +#define DRIVER_VERSION "0.05" -#define PCI_VENDOR_ESS 0x125D -#define PCI_DEVICE_ID_ESS_ESS1968 0x1968 /* Maestro 2 */ -#define PCI_DEVICE_ID_ESS_ESS1978 0x1978 /* Maestro 2E */ - -#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 */ @@ -65,7 +61,27 @@ 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); + +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, @@ -76,29 +92,27 @@ static struct file_operations maestro_fops = { .llseek = no_llseek, }; -static struct video_device maestro_radio= -{ - .owner = THIS_MODULE, +static struct video_device maestro_radio = { .name = "Maestro radio", .type = VID_TYPE_TUNER, .hardware = VID_HARDWARE_SF16MI, - .fops = &maestro_fops, + .fops = &maestro_fops, }; -static struct radio_device -{ - __u16 io, /* base of Maestro card radio io (GPIO_DATA)*/ +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, }; + struct semaphore lock; +}; -static __u32 radio_bits_get(struct radio_device *dev) +static u32 radio_bits_get(struct radio_device *dev) { - register __u16 io=dev->io, l, rdata; - register __u32 data=0; - __u16 omask; + 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); @@ -121,17 +135,21 @@ 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; } -static void radio_bits_set(struct radio_device *dev, __u32 data) +static void radio_bits_set(struct radio_device *dev, u32 data) { - register __u16 io=dev->io, l, bits; - __u16 omask, odir; + 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); @@ -147,8 +165,10 @@ 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); @@ -156,141 +176,103 @@ 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 = video_get_drvdata(dev); + + 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 = video_get_drvdata(dev); int ret; down(&card->lock); ret = video_usercopy(inode, file, cmd, arg, radio_function); up(&card->lock); - 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); + return ret; } -static int __init maestro_radio_init(void) +static u16 __devinit radio_power_on(struct radio_device *dev) { - 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; -} + register u16 io = dev->io; + register u32 ofreq; + u16 omask, odir; -module_init(maestro_radio_init); -module_exit(maestro_radio_exit); - -static inline __u16 radio_power_on(struct radio_device *dev) -{ - 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); @@ -299,35 +281,101 @@ static inline __u16 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)); } -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); } +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); + +MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl"); +MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio."); +MODULE_LICENSE("GPL"); |