diff options
author | Hans Verkuil <hverkuil@xs4all.nl> | 2009-03-06 13:52:34 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 12:43:13 -0300 |
commit | c41269fd9275cce88b90af644969c6a5e2067657 (patch) | |
tree | bdf76273785e8fec8dd3845cb1e5ac138e2e6dc2 /drivers/media/radio/radio-sf16fmi.c | |
parent | 922c78e9f6900ade073da1a92d43c56d77cf790f (diff) | |
download | op-kernel-dev-c41269fd9275cce88b90af644969c6a5e2067657.zip op-kernel-dev-c41269fd9275cce88b90af644969c6a5e2067657.tar.gz |
V4L/DVB (10888): radio-sf16fmi: convert to v4l2_device.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/radio-sf16fmi.c')
-rw-r--r-- | drivers/media/radio/radio-sf16fmi.c | 284 |
1 files changed, 135 insertions, 149 deletions
diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c index d358e48..4982d0c 100644 --- a/drivers/media/radio/radio-sf16fmi.c +++ b/drivers/media/radio/radio-sf16fmi.c @@ -22,113 +22,110 @@ #include <linux/init.h> /* Initdata */ #include <linux/ioport.h> /* request_region */ #include <linux/delay.h> /* udelay */ -#include <linux/videodev2.h> /* kernel radio structs */ -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> #include <linux/isapnp.h> -#include <asm/io.h> /* outb, outb_p */ -#include <asm/uaccess.h> /* copy to/from user */ #include <linux/mutex.h> +#include <linux/videodev2.h> /* kernel radio structs */ +#include <linux/io.h> /* outb, outb_p */ +#include <linux/uaccess.h> /* copy to/from user */ +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> -#define RADIO_VERSION KERNEL_VERSION(0,0,2) +MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood"); +MODULE_DESCRIPTION("A driver for the SF16MI radio."); +MODULE_LICENSE("GPL"); -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, - } -}; +static int io = -1; +static int radio_nr = -1; + +module_param(io, int, 0); +MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)"); +module_param(radio_nr, int, 0); + +#define RADIO_VERSION KERNEL_VERSION(0, 0, 2) -struct fmi_device +struct fmi { - unsigned long in_use; - int port; + struct v4l2_device v4l2_dev; + struct video_device vdev; + int io; int curvol; /* 1 or 0 */ unsigned long curfreq; /* freq in kHz */ __u32 flags; + struct mutex lock; }; -static int io = -1; -static int radio_nr = -1; -static struct pnp_dev *dev = NULL; -static struct mutex lock; +static struct fmi fmi_card; +static struct pnp_dev *dev; /* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */ /* It is only useful to give freq in intervall of 800 (=0.05Mhz), * other bits will be truncated, e.g 92.7400016 -> 92.7, but * 92.7400017 -> 92.75 */ -#define RSF16_ENCODE(x) ((x)/800+214) -#define RSF16_MINFREQ 87*16000 -#define RSF16_MAXFREQ 108*16000 +#define RSF16_ENCODE(x) ((x) / 800 + 214) +#define RSF16_MINFREQ (87 * 16000) +#define RSF16_MAXFREQ (108 * 16000) -static void outbits(int bits, unsigned int data, int port) +static void outbits(int bits, unsigned int data, int io) { - while(bits--) { - if(data & 1) { - outb(5, port); + while (bits--) { + if (data & 1) { + outb(5, io); udelay(6); - outb(7, port); + outb(7, io); udelay(6); } else { - outb(1, port); + outb(1, io); udelay(6); - outb(3, port); + outb(3, io); udelay(6); } - data>>=1; + data >>= 1; } } -static inline void fmi_mute(int port) +static inline void fmi_mute(struct fmi *fmi) { - mutex_lock(&lock); - outb(0x00, port); - mutex_unlock(&lock); + mutex_lock(&fmi->lock); + outb(0x00, fmi->io); + mutex_unlock(&fmi->lock); } -static inline void fmi_unmute(int port) +static inline void fmi_unmute(struct fmi *fmi) { - mutex_lock(&lock); - outb(0x08, port); - mutex_unlock(&lock); + mutex_lock(&fmi->lock); + outb(0x08, fmi->io); + mutex_unlock(&fmi->lock); } -static inline int fmi_setfreq(struct fmi_device *dev) +static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq) { - int myport = dev->port; - unsigned long freq = dev->curfreq; + mutex_lock(&fmi->lock); + fmi->curfreq = freq; - mutex_lock(&lock); - - outbits(16, RSF16_ENCODE(freq), myport); - outbits(8, 0xC0, myport); + outbits(16, RSF16_ENCODE(freq), fmi->io); + outbits(8, 0xC0, fmi->io); msleep(143); /* was schedule_timeout(HZ/7) */ - mutex_unlock(&lock); - if (dev->curvol) fmi_unmute(myport); + mutex_unlock(&fmi->lock); + if (fmi->curvol) + fmi_unmute(fmi); return 0; } -static inline int fmi_getsigstr(struct fmi_device *dev) +static inline int fmi_getsigstr(struct fmi *fmi) { int val; int res; - int myport = dev->port; - - mutex_lock(&lock); - val = dev->curvol ? 0x08 : 0x00; /* unmute/mute */ - outb(val, myport); - outb(val | 0x10, myport); + mutex_lock(&fmi->lock); + val = fmi->curvol ? 0x08 : 0x00; /* unmute/mute */ + outb(val, fmi->io); + outb(val | 0x10, fmi->io); msleep(143); /* was schedule_timeout(HZ/7) */ - res = (int)inb(myport+1); - outb(val, myport); + res = (int)inb(fmi->io + 1); + outb(val, fmi->io); - mutex_unlock(&lock); + mutex_unlock(&fmi->lock); return (res & 2) ? 0 : 0xFFFF; } @@ -137,9 +134,9 @@ static int vidioc_querycap(struct file *file, void *priv, { strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver)); strlcpy(v->card, "SF16-FMx radio", sizeof(v->card)); - sprintf(v->bus_info, "ISA"); + strlcpy(v->bus_info, "ISA", sizeof(v->bus_info)); v->version = RADIO_VERSION; - v->capabilities = V4L2_CAP_TUNER; + v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; return 0; } @@ -147,18 +144,18 @@ static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { int mult; - struct fmi_device *fmi = video_drvdata(file); + struct fmi *fmi = 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; mult = (fmi->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000; - v->rangelow = RSF16_MINFREQ/mult; - v->rangehigh = RSF16_MAXFREQ/mult; + v->rangelow = RSF16_MINFREQ / mult; + v->rangehigh = RSF16_MAXFREQ / mult; v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO; - v->capability = fmi->flags&V4L2_TUNER_CAP_LOW; + v->capability = fmi->flags & V4L2_TUNER_CAP_LOW; v->audmode = V4L2_TUNER_MODE_STEREO; v->signal = fmi_getsigstr(fmi); return 0; @@ -167,32 +164,29 @@ 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 fmi_device *fmi = video_drvdata(file); + struct fmi *fmi = video_drvdata(file); if (!(fmi->flags & V4L2_TUNER_CAP_LOW)) f->frequency *= 1000; if (f->frequency < RSF16_MINFREQ || - f->frequency > RSF16_MAXFREQ ) + f->frequency > RSF16_MAXFREQ) return -EINVAL; - /*rounding in steps of 800 to match th freq - that will be used */ - fmi->curfreq = (f->frequency/800)*800; - fmi_setfreq(fmi); + /* rounding in steps of 800 to match the freq + that will be used */ + fmi_setfreq(fmi, (f->frequency / 800) * 800); return 0; } static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct fmi_device *fmi = video_drvdata(file); + struct fmi *fmi = video_drvdata(file); f->type = V4L2_TUNER_RADIO; f->frequency = fmi->curfreq; @@ -204,14 +198,9 @@ 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); } return -EINVAL; } @@ -219,7 +208,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct fmi_device *fmi = video_drvdata(file); + struct fmi *fmi = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -232,31 +221,20 @@ 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 fmi_device *fmi = video_drvdata(file); + struct fmi *fmi = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: if (ctrl->value) - fmi_mute(fmi->port); + fmi_mute(fmi); else - fmi_unmute(fmi->port); + fmi_unmute(fmi); fmi->curvol = ctrl->value; return 0; } 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; @@ -265,36 +243,38 @@ 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 0; + return i ? -EINVAL : 0; } -static int vidioc_s_audio(struct file *file, void *priv, +static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) { - if (a->index != 0) - return -EINVAL; + a->index = 0; + strlcpy(a->name, "Radio", sizeof(a->name)); + a->capability = V4L2_AUDCAP_STEREO; return 0; } -static struct fmi_device fmi_unit; +static int vidioc_s_audio(struct file *file, void *priv, + struct v4l2_audio *a) +{ + return a->index ? -EINVAL : 0; +} -static int fmi_exclusive_open(struct file *file) +static int fmi_open(struct file *file) { - return test_and_set_bit(0, &fmi_unit.in_use) ? -EBUSY : 0; + return 0; } -static int fmi_exclusive_release(struct file *file) +static int fmi_release(struct file *file) { - clear_bit(0, &fmi_unit.in_use); return 0; } static const struct v4l2_file_operations fmi_fops = { .owner = THIS_MODULE, - .open = fmi_exclusive_open, - .release = fmi_exclusive_release, + .open = fmi_open, + .release = fmi_release, .ioctl = video_ioctl2, }; @@ -313,13 +293,6 @@ static const struct v4l2_ioctl_ops fmi_ioctl_ops = { .vidioc_s_ctrl = vidioc_s_ctrl, }; -static struct video_device fmi_radio = { - .name = "SF16FMx radio", - .fops = &fmi_fops, - .ioctl_ops = &fmi_ioctl_ops, - .release = video_device_release_empty, -}; - /* ladis: this is my card. does any other types exist? */ static struct isapnp_device_id id_table[] __devinitdata = { { ISAPNP_ANY_ID, ISAPNP_ANY_ID, @@ -344,7 +317,7 @@ static int __init isapnp_fmi_probe(void) if (pnp_device_attach(dev) < 0) return -EAGAIN; if (pnp_activate_dev(dev) < 0) { - printk ("radio-sf16fmi: PnP configure failed (out of resources?)\n"); + printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n"); pnp_device_detach(dev); return -ENOMEM; } @@ -354,59 +327,72 @@ static int __init isapnp_fmi_probe(void) } i = pnp_port_start(dev, 0); - printk ("radio-sf16fmi: PnP reports card at %#x\n", i); + printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i); return i; } static int __init fmi_init(void) { + struct fmi *fmi = &fmi_card; + struct v4l2_device *v4l2_dev = &fmi->v4l2_dev; + int res; + if (io < 0) io = isapnp_fmi_probe(); - if (io < 0) { - printk(KERN_ERR "radio-sf16fmi: No PnP card found.\n"); - return io; + strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name)); + fmi->io = io; + if (fmi->io < 0) { + v4l2_err(v4l2_dev, "No PnP card found.\n"); + return fmi->io; } if (!request_region(io, 2, "radio-sf16fmi")) { - printk(KERN_ERR "radio-sf16fmi: port 0x%x already in use\n", io); + v4l2_err(v4l2_dev, "port 0x%x already in use\n", fmi->io); pnp_device_detach(dev); return -EBUSY; } - fmi_unit.port = io; - fmi_unit.curvol = 0; - fmi_unit.curfreq = 0; - fmi_unit.flags = V4L2_TUNER_CAP_LOW; - video_set_drvdata(&fmi_radio, &fmi_unit); + res = v4l2_device_register(NULL, v4l2_dev); + if (res < 0) { + release_region(fmi->io, 2); + pnp_device_detach(dev); + v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); + return res; + } + + fmi->flags = V4L2_TUNER_CAP_LOW; + strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name)); + fmi->vdev.v4l2_dev = v4l2_dev; + fmi->vdev.fops = &fmi_fops; + fmi->vdev.ioctl_ops = &fmi_ioctl_ops; + fmi->vdev.release = video_device_release_empty; + video_set_drvdata(&fmi->vdev, fmi); - mutex_init(&lock); + mutex_init(&fmi->lock); - if (video_register_device(&fmi_radio, VFL_TYPE_RADIO, radio_nr) < 0) { - release_region(io, 2); + if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) { + v4l2_device_unregister(v4l2_dev); + release_region(fmi->io, 2); + pnp_device_detach(dev); return -EINVAL; } - printk(KERN_INFO "SF16FMx radio card driver at 0x%x\n", io); + v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io); /* mute card - prevents noisy bootups */ - fmi_mute(io); + fmi_mute(fmi); return 0; } -MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood"); -MODULE_DESCRIPTION("A driver for the SF16MI radio."); -MODULE_LICENSE("GPL"); - -module_param(io, int, 0); -MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)"); -module_param(radio_nr, int, 0); - -static void __exit fmi_cleanup_module(void) +static void __exit fmi_exit(void) { - video_unregister_device(&fmi_radio); - release_region(io, 2); + struct fmi *fmi = &fmi_card; + + video_unregister_device(&fmi->vdev); + v4l2_device_unregister(&fmi->v4l2_dev); + release_region(fmi->io, 2); if (dev) pnp_device_detach(dev); } module_init(fmi_init); -module_exit(fmi_cleanup_module); +module_exit(fmi_exit); |