-/* radio-aztech.c - Aztech radio card driver for Linux 2.2
+/* radio-aztech.c - Aztech radio card driver for Linux 2.2
*
- * Adapted to support the Video for Linux API by
+ * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
+ * Adapted to support the Video for Linux API by
* Russell Kroll <rkroll@exploits.org>. Based on original tuner code by:
*
* Quay Ly
* Donald Song
- * Jason Lewis (jlewis@twilight.vtc.vsc.edu)
+ * Jason Lewis (jlewis@twilight.vtc.vsc.edu)
* Scott McGrath (smcgrath@twilight.vtc.vsc.edu)
* William McGrath (wmcgrath@twilight.vtc.vsc.edu)
*
#include <linux/module.h> /* Modules */
#include <linux/init.h> /* Initdata */
-#include <linux/ioport.h> /* check_region, request_region */
+#include <linux/ioport.h> /* request_region */
#include <linux/delay.h> /* udelay */
-#include <asm/io.h> /* outb, outb_p */
-#include <asm/uaccess.h> /* copy to/from user */
-#include <linux/videodev.h> /* kernel radio structs */
-#include <linux/config.h> /* CONFIG_RADIO_AZTECH_PORT */
+#include <linux/videodev2.h> /* kernel radio structs */
+#include <linux/version.h> /* for KERNEL_VERSION MACRO */
+#include <linux/io.h> /* outb, outb_p */
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+
+MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
+MODULE_DESCRIPTION("A driver for the Aztech radio card.");
+MODULE_LICENSE("GPL");
/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
#define CONFIG_RADIO_AZTECH_PORT -1
#endif
-static int io = CONFIG_RADIO_AZTECH_PORT;
+static int io = CONFIG_RADIO_AZTECH_PORT;
static int radio_nr = -1;
static int radio_wait_time = 1000;
-static struct semaphore lock;
-struct az_device
+module_param(io, int, 0);
+module_param(radio_nr, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the Aztech card (0x350 or 0x358)");
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
+
+struct aztech
{
+ struct v4l2_device v4l2_dev;
+ struct video_device vdev;
+ int io;
int curvol;
unsigned long curfreq;
int stereo;
+ struct mutex lock;
};
+static struct aztech aztech_card;
+
static int volconvert(int level)
{
- level>>=14; /* Map 16bits down to 2 bit */
- level&=3;
-
+ level >>= 14; /* Map 16bits down to 2 bit */
+ level &= 3;
+
/* convert to card-friendly values */
- switch (level)
- {
- case 0:
- return 0;
- case 1:
- return 1;
- case 2:
- return 4;
- case 3:
- return 5;
+ switch (level) {
+ case 0:
+ return 0;
+ case 1:
+ return 1;
+ case 2:
+ return 4;
+ case 3:
+ return 5;
}
return 0; /* Quieten gcc */
}
-static void send_0_byte (struct az_device *dev)
+static void send_0_byte(struct aztech *az)
{
udelay(radio_wait_time);
- outb_p(2+volconvert(dev->curvol), io);
- outb_p(64+2+volconvert(dev->curvol), io);
+ outb_p(2 + volconvert(az->curvol), az->io);
+ outb_p(64 + 2 + volconvert(az->curvol), az->io);
}
-static void send_1_byte (struct az_device *dev)
+static void send_1_byte(struct aztech *az)
{
udelay (radio_wait_time);
- outb_p(128+2+volconvert(dev->curvol), io);
- outb_p(128+64+2+volconvert(dev->curvol), io);
+ outb_p(128 + 2 + volconvert(az->curvol), az->io);
+ outb_p(128 + 64 + 2 + volconvert(az->curvol), az->io);
}
-static int az_setvol(struct az_device *dev, int vol)
+static int az_setvol(struct aztech *az, int vol)
{
- down(&lock);
- outb (volconvert(vol), io);
- up(&lock);
+ mutex_lock(&az->lock);
+ outb(volconvert(vol), az->io);
+ mutex_unlock(&az->lock);
return 0;
}
*
*/
-static int az_getsigstr(struct az_device *dev)
+static int az_getsigstr(struct aztech *az)
{
- if (inb(io) & 2) /* bit set = no signal present */
- return 0;
- return 1; /* signal present */
+ int sig = 1;
+
+ mutex_lock(&az->lock);
+ if (inb(az->io) & 2) /* bit set = no signal present */
+ sig = 0;
+ mutex_unlock(&az->lock);
+ return sig;
}
-static int az_getstereo(struct az_device *dev)
+static int az_getstereo(struct aztech *az)
{
- if (inb(io) & 1) /* bit set = mono */
- return 0;
- return 1; /* stereo */
+ int stereo = 1;
+
+ mutex_lock(&az->lock);
+ if (inb(az->io) & 1) /* bit set = mono */
+ stereo = 0;
+ mutex_unlock(&az->lock);
+ return stereo;
}
-static int az_setfreq(struct az_device *dev, unsigned long frequency)
+static int az_setfreq(struct aztech *az, unsigned long frequency)
{
int i;
+ mutex_lock(&az->lock);
+
+ az->curfreq = frequency;
frequency += 171200; /* Add 10.7 MHz IF */
frequency /= 800; /* Convert to 50 kHz units */
-
- down(&lock);
-
- send_0_byte (dev); /* 0: LSB of frequency */
+
+ send_0_byte(az); /* 0: LSB of frequency */
for (i = 0; i < 13; i++) /* : frequency bits (1-13) */
if (frequency & (1 << i))
- send_1_byte (dev);
+ send_1_byte(az);
else
- send_0_byte (dev);
+ send_0_byte(az);
- send_0_byte (dev); /* 14: test bit - always 0 */
- send_0_byte (dev); /* 15: test bit - always 0 */
- send_0_byte (dev); /* 16: band data 0 - always 0 */
- if (dev->stereo) /* 17: stereo (1 to enable) */
- send_1_byte (dev);
+ send_0_byte(az); /* 14: test bit - always 0 */
+ send_0_byte(az); /* 15: test bit - always 0 */
+ send_0_byte(az); /* 16: band data 0 - always 0 */
+ if (az->stereo) /* 17: stereo (1 to enable) */
+ send_1_byte(az);
else
- send_0_byte (dev);
+ send_0_byte(az);
- send_1_byte (dev); /* 18: band data 1 - unknown */
- send_0_byte (dev); /* 19: time base - always 0 */
- send_0_byte (dev); /* 20: spacing (0 = 25 kHz) */
- send_1_byte (dev); /* 21: spacing (1 = 25 kHz) */
- send_0_byte (dev); /* 22: spacing (0 = 25 kHz) */
- send_1_byte (dev); /* 23: AM/FM (FM = 1, always) */
+ send_1_byte(az); /* 18: band data 1 - unknown */
+ send_0_byte(az); /* 19: time base - always 0 */
+ send_0_byte(az); /* 20: spacing (0 = 25 kHz) */
+ send_1_byte(az); /* 21: spacing (1 = 25 kHz) */
+ send_0_byte(az); /* 22: spacing (0 = 25 kHz) */
+ send_1_byte(az); /* 23: AM/FM (FM = 1, always) */
/* latch frequency */
- udelay (radio_wait_time);
- outb_p(128+64+volconvert(dev->curvol), io);
-
- up(&lock);
+ udelay(radio_wait_time);
+ outb_p(128 + 64 + volconvert(az->curvol), az->io);
+
+ mutex_unlock(&az->lock);
+
+ return 0;
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *v)
+{
+ strlcpy(v->driver, "radio-aztech", sizeof(v->driver));
+ strlcpy(v->card, "Aztech Radio", sizeof(v->card));
+ strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
+ v->version = RADIO_VERSION;
+ 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 aztech *az = video_drvdata(file);
+
+ if (v->index > 0)
+ return -EINVAL;
+
+ strlcpy(v->name, "FM", sizeof(v->name));
+ v->type = V4L2_TUNER_RADIO;
+
+ v->rangelow = 87 * 16000;
+ v->rangehigh = 108 * 16000;
+ v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+ v->capability = V4L2_TUNER_CAP_LOW;
+ if (az_getstereo(az))
+ v->audmode = V4L2_TUNER_MODE_STEREO;
+ else
+ v->audmode = V4L2_TUNER_MODE_MONO;
+ v->signal = 0xFFFF * az_getsigstr(az);
+
+ return 0;
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *v)
+{
+ return v->index ? -EINVAL : 0;
+}
+
+static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
+{
+ *i = 0;
+ return 0;
+}
+static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
+{
+ 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)
+{
+ return a->index ? -EINVAL : 0;
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct aztech *az = video_drvdata(file);
+
+ az_setfreq(az, f->frequency);
return 0;
}
-static int az_do_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
+static int vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
{
- struct video_device *dev = video_devdata(file);
- struct az_device *az = dev->priv;
-
- switch(cmd)
- {
- case VIDIOCGCAP:
- {
- struct video_capability *v = arg;
- memset(v,0,sizeof(*v));
- v->type=VID_TYPE_TUNER;
- v->channels=1;
- v->audios=1;
- strcpy(v->name, "Aztech Radio");
- return 0;
- }
- case VIDIOCGTUNER:
- {
- struct video_tuner *v = arg;
- if(v->tuner) /* Only 1 tuner */
- return -EINVAL;
- v->rangelow=(87*16000);
- v->rangehigh=(108*16000);
- v->flags=VIDEO_TUNER_LOW;
- v->mode=VIDEO_MODE_AUTO;
- v->signal=0xFFFF*az_getsigstr(az);
- if(az_getstereo(az))
- v->flags|=VIDEO_TUNER_STEREO_ON;
- strcpy(v->name, "FM");
- return 0;
- }
- case VIDIOCSTUNER:
- {
- struct video_tuner *v = arg;
- if(v->tuner!=0)
- return -EINVAL;
- return 0;
- }
- case VIDIOCGFREQ:
- {
- unsigned long *freq = arg;
- *freq = az->curfreq;
- return 0;
- }
- case VIDIOCSFREQ:
- {
- unsigned long *freq = arg;
- az->curfreq = *freq;
- az_setfreq(az, az->curfreq);
- return 0;
- }
- case VIDIOCGAUDIO:
- {
- struct video_audio *v = arg;
- memset(v,0, sizeof(*v));
- v->flags|=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME;
- if(az->stereo)
- v->mode=VIDEO_SOUND_STEREO;
- else
- v->mode=VIDEO_SOUND_MONO;
- v->volume=az->curvol;
- v->step=16384;
- strcpy(v->name, "Radio");
- return 0;
- }
- case VIDIOCSAUDIO:
- {
- struct video_audio *v = arg;
- if(v->audio)
- return -EINVAL;
- az->curvol=v->volume;
-
- az->stereo=(v->mode&VIDEO_SOUND_STEREO)?1:0;
- if(v->flags&VIDEO_AUDIO_MUTE)
- az_setvol(az,0);
- else
- az_setvol(az,az->curvol);
- return 0;
- }
- default:
- return -ENOIOCTLCMD;
+ struct aztech *az = video_drvdata(file);
+
+ f->type = V4L2_TUNER_RADIO;
+ f->frequency = az->curfreq;
+ return 0;
+}
+
+static int vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
+{
+ 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, 0xff, 1, 0xff);
}
+ return -EINVAL;
}
-static int az_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
{
- return video_usercopy(inode, file, cmd, arg, az_do_ioctl);
+ struct aztech *az = video_drvdata(file);
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ if (az->curvol == 0)
+ ctrl->value = 1;
+ else
+ ctrl->value = 0;
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
+ ctrl->value = az->curvol * 6554;
+ return 0;
+ }
+ return -EINVAL;
}
-static struct az_device aztech_unit;
+static int vidioc_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct aztech *az = video_drvdata(file);
-static struct file_operations aztech_fops = {
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ if (ctrl->value)
+ az_setvol(az, 0);
+ else
+ az_setvol(az, az->curvol);
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
+ az_setvol(az, ctrl->value);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static const struct v4l2_file_operations aztech_fops = {
.owner = THIS_MODULE,
- .open = video_exclusive_open,
- .release = video_exclusive_release,
- .ioctl = az_ioctl,
- .llseek = no_llseek,
+ .ioctl = video_ioctl2,
};
-static struct video_device aztech_radio=
-{
- .owner = THIS_MODULE,
- .name = "Aztech radio",
- .type = VID_TYPE_TUNER,
- .hardware = VID_HARDWARE_AZTECH,
- .fops = &aztech_fops,
+static const struct v4l2_ioctl_ops aztech_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_g_tuner = vidioc_g_tuner,
+ .vidioc_s_tuner = vidioc_s_tuner,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
};
static int __init aztech_init(void)
{
- if(io==-1)
- {
- printk(KERN_ERR "You must set an I/O address with io=0x???\n");
+ struct aztech *az = &aztech_card;
+ struct v4l2_device *v4l2_dev = &az->v4l2_dev;
+ int res;
+
+ strlcpy(v4l2_dev->name, "aztech", sizeof(v4l2_dev->name));
+ az->io = io;
+
+ if (az->io == -1) {
+ v4l2_err(v4l2_dev, "you must set an I/O address with io=0x350 or 0x358\n");
return -EINVAL;
}
- if (!request_region(io, 2, "aztech"))
- {
- printk(KERN_ERR "aztech: port 0x%x already in use\n", io);
+ if (!request_region(az->io, 2, "aztech")) {
+ v4l2_err(v4l2_dev, "port 0x%x already in use\n", az->io);
return -EBUSY;
}
- init_MUTEX(&lock);
- aztech_radio.priv=&aztech_unit;
-
- if(video_register_device(&aztech_radio, VFL_TYPE_RADIO, radio_nr)==-1)
- {
- release_region(io,2);
+ res = v4l2_device_register(NULL, v4l2_dev);
+ if (res < 0) {
+ release_region(az->io, 2);
+ v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+ return res;
+ }
+
+ mutex_init(&az->lock);
+ strlcpy(az->vdev.name, v4l2_dev->name, sizeof(az->vdev.name));
+ az->vdev.v4l2_dev = v4l2_dev;
+ az->vdev.fops = &aztech_fops;
+ az->vdev.ioctl_ops = &aztech_ioctl_ops;
+ az->vdev.release = video_device_release_empty;
+ video_set_drvdata(&az->vdev, az);
+
+ if (video_register_device(&az->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+ v4l2_device_unregister(v4l2_dev);
+ release_region(az->io, 2);
return -EINVAL;
}
-
- printk(KERN_INFO "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
+
+ v4l2_info(v4l2_dev, "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
/* mute card - prevents noisy bootups */
- outb (0, io);
+ outb(0, az->io);
return 0;
}
-MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
-MODULE_DESCRIPTION("A driver for the Aztech radio card.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-module_param(radio_nr, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the Aztech card (0x350 or 0x358)");
-
-static void __exit aztech_cleanup(void)
+static void __exit aztech_exit(void)
{
- video_unregister_device(&aztech_radio);
- release_region(io,2);
+ struct aztech *az = &aztech_card;
+
+ video_unregister_device(&az->vdev);
+ v4l2_device_unregister(&az->v4l2_dev);
+ release_region(az->io, 2);
}
module_init(aztech_init);
-module_exit(aztech_cleanup);
+module_exit(aztech_exit);