Commit a4366af4 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
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V4L/DVB (4347): V4L2 conversion: radio_aztech 



Driver conversion to V4L2 API.
Require some testing, since this obsolete hardware is not
common those days.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 46ff2c72

drivers/media/radio/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -82,7 +82,7 @@ config RADIO_RTRACK2_PORT 


config RADIO_AZTECH

	tristate "Aztech/Packard Bell Radio"

	depends on ISA && VIDEO_V4L1

	depends on ISA && VIDEO_V4L2

	---help---

	  Choose Y here if you have one of these FM radio cards, and then fill

	  in the port address below.

drivers/media/radio/radio-aztech.c

+113 −50
Original line number Diff line number Diff line 
/* radio-aztech.c - Aztech radio card driver for Linux 2.2

 *

 * 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:

 *
@@ -30,9 +31,31 @@ 
#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/videodev2.h>	/* kernel radio structs		*/

#include <media/v4l2-common.h>



#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */

#define RADIO_VERSION KERNEL_VERSION(0,0,2)



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,

	},{

		.id            = V4L2_CID_AUDIO_VOLUME,

		.name          = "Volume",

		.minimum       = 0,

		.maximum       = 0xff,

		.step          = 1,

		.default_value = 0xff,

		.type          = V4L2_CTRL_TYPE_INTEGER,

	}

};



/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */



#ifndef CONFIG_RADIO_AZTECH_PORT
@@ -165,81 +188,121 @@ static int az_do_ioctl(struct inode *inode, struct file *file, 


	switch(cmd)

	{

		case VIDIOCGCAP:

		case VIDIOC_QUERYCAP:

		{

			struct video_capability *v = arg;

			struct v4l2_capability *v = arg;

			memset(v,0,sizeof(*v));

			v->type=VID_TYPE_TUNER;

			v->channels=1;

			v->audios=1;

			strcpy(v->name, "Aztech Radio");

			strlcpy(v->driver, "radio-aztech", sizeof (v->driver));

			strlcpy(v->card, "Aztech Radio", sizeof (v->card));

			sprintf(v->bus_info,"ISA");

			v->version = RADIO_VERSION;

			v->capabilities = V4L2_CAP_TUNER;



			return 0;

		}

		case VIDIOCGTUNER:

		case VIDIOC_G_TUNER:

		{

			struct video_tuner *v = arg;

			if(v->tuner)	/* Only 1 tuner */

			struct v4l2_tuner *v = arg;



			if (v->index > 0)

				return -EINVAL;



			memset(v,0,sizeof(*v));

			strcpy(v->name, "FM");

			v->type = V4L2_TUNER_RADIO;



			v->rangelow=(87*16000);

			v->rangehigh=(108*16000);

			v->flags=VIDEO_TUNER_LOW;

			v->mode=VIDEO_MODE_AUTO;

			v->signal=0xFFFF*az_getsigstr(az);

			v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;

			v->capability=V4L2_TUNER_CAP_LOW;

			if(az_getstereo(az))

				v->flags|=VIDEO_TUNER_STEREO_ON;

			strcpy(v->name, "FM");

				v->audmode = V4L2_TUNER_MODE_STEREO;

			else

				v->audmode = V4L2_TUNER_MODE_MONO;

			v->signal=0xFFFF*az_getsigstr(az);



			return 0;

		}

		case VIDIOCSTUNER:

		case VIDIOC_S_TUNER:

		{

			struct video_tuner *v = arg;

			if(v->tuner!=0)

			struct v4l2_tuner *v = arg;



			if (v->index > 0)

				return -EINVAL;



			return 0;

		}

		case VIDIOCGFREQ:

		case VIDIOC_S_FREQUENCY:

		{

			unsigned long *freq = arg;

			*freq = az->curfreq;

			struct v4l2_frequency *f = arg;



			az->curfreq = f->frequency;

			az_setfreq(az, az->curfreq);

			return 0;

		}

		case VIDIOCSFREQ:

		case VIDIOC_G_FREQUENCY:

		{

			unsigned long *freq = arg;

			az->curfreq = *freq;

			az_setfreq(az, az->curfreq);

			struct v4l2_frequency *f = arg;



			f->type = V4L2_TUNER_RADIO;

			f->frequency = az->curfreq;



			return 0;

		}

		case VIDIOCGAUDIO:



		case VIDIOC_QUERYCTRL:

		{

			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;

			struct v4l2_queryctrl *qc = arg;

			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);

				}

			}

		case VIDIOCSAUDIO:

			return -EINVAL;

		}

		case VIDIOC_G_CTRL:

		{

			struct video_audio *v = arg;

			if(v->audio)

			struct v4l2_control *ctrl= arg;



			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;

			az->curvol=v->volume;

		}

		case VIDIOC_S_CTRL:

		{

			struct v4l2_control *ctrl= arg;



			az->stereo=(v->mode&VIDEO_SOUND_STEREO)?1:0;

			if(v->flags&VIDEO_AUDIO_MUTE)

			switch (ctrl->id) {

				case V4L2_CID_AUDIO_MUTE:

					if (ctrl->value) {

						az_setvol(az,0);

			else

					} else {

						az_setvol(az,az->curvol);

			return 0;

					}

					return (0);

				case V4L2_CID_AUDIO_VOLUME:

					az_setvol(az,ctrl->value);

					return (0);

			}

			return -EINVAL;

		}



		default:

			return -ENOIOCTLCMD;

			return v4l_compat_translate_ioctl(inode,file,cmd,arg,

							  az_do_ioctl);

	}

}