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Commit 1d211f26 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] radio-trust: Convert to radio-isa 



Tested with v4l2-compliance, but not with actual hardware. Contact the
linux-media mailinglist if you have this card!

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 32c51836

drivers/media/radio/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -377,10 +377,15 @@ config RADIO_TERRATEC 
config RADIO_TRUST

	tristate "Trust FM radio card"

	depends on ISA && VIDEO_V4L2

	select RADIO_ISA

	help

	  This is a driver for the Trust FM radio cards. Say Y if you have

	  such a card and want to use it under Linux.



	  Note: this driver hasn't been tested since a long time due to lack

	  of hardware. If you have this hardware, then please contact the

	  linux-media mailinglist.



	  To compile this driver as a module, choose M here: the

	  module will be called radio-trust.

drivers/media/radio/radio-trust.c

+99 −288
Original line number Diff line number Diff line
@@ -23,11 +23,12 @@ 
#include <linux/io.h>

#include <media/v4l2-device.h>

#include <media/v4l2-ioctl.h>

#include "radio-isa.h"



MODULE_AUTHOR("Eric Lammerts, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");

MODULE_DESCRIPTION("A driver for the Trust FM Radio card.");

MODULE_LICENSE("GPL");

MODULE_VERSION("0.0.3");

MODULE_VERSION("0.1.99");



/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
@@ -35,39 +36,38 @@ MODULE_VERSION("0.0.3"); 
#define CONFIG_RADIO_TRUST_PORT -1

#endif



static int io = CONFIG_RADIO_TRUST_PORT;

static int radio_nr = -1;

#define TRUST_MAX 2



module_param(io, int, 0);

MODULE_PARM_DESC(io, "I/O address of the Trust FM Radio card (0x350 or 0x358)");

module_param(radio_nr, int, 0);

static int io[TRUST_MAX] = { [0] = CONFIG_RADIO_TRUST_PORT,

			      [1 ... (TRUST_MAX - 1)] = -1 };

static int radio_nr[TRUST_MAX] = { [0 ... (TRUST_MAX - 1)] = -1 };



module_param_array(io, int, NULL, 0444);

MODULE_PARM_DESC(io, "I/O addresses of the Trust FM Radio card (0x350 or 0x358)");

module_param_array(radio_nr, int, NULL, 0444);

MODULE_PARM_DESC(radio_nr, "Radio device numbers");



struct trust {

	struct v4l2_device v4l2_dev;

	struct video_device vdev;

	int io;

	struct radio_isa_card isa;

	int ioval;

	__u16 curvol;

	__u16 curbass;

	__u16 curtreble;

	int muted;

	unsigned long curfreq;

	int curstereo;

	int curmute;

	struct mutex lock;

};



static struct trust trust_card;

static struct radio_isa_card *trust_alloc(void)

{

	struct trust *tr = kzalloc(sizeof(*tr), GFP_KERNEL);



	return tr ? &tr->isa : NULL;

}



/* i2c addresses */

#define TDA7318_ADDR 0x88

#define TSA6060T_ADDR 0xc4



#define TR_DELAY do { inb(tr->io); inb(tr->io); inb(tr->io); } while (0)

#define TR_SET_SCL outb(tr->ioval |= 2, tr->io)

#define TR_CLR_SCL outb(tr->ioval &= 0xfd, tr->io)

#define TR_SET_SDA outb(tr->ioval |= 1, tr->io)

#define TR_CLR_SDA outb(tr->ioval &= 0xfe, tr->io)

#define TR_DELAY do { inb(tr->isa.io); inb(tr->isa.io); inb(tr->isa.io); } while (0)

#define TR_SET_SCL outb(tr->ioval |= 2, tr->isa.io)

#define TR_CLR_SCL outb(tr->ioval &= 0xfd, tr->isa.io)

#define TR_SET_SDA outb(tr->ioval |= 1, tr->isa.io)

#define TR_CLR_SDA outb(tr->ioval &= 0xfe, tr->isa.io)



static void write_i2c(struct trust *tr, int n, ...)

{
@@ -115,317 +115,128 @@ static void write_i2c(struct trust *tr, int n, ...) 
	va_end(args);

}



static void tr_setvol(struct trust *tr, __u16 vol)

static int trust_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)

{

	mutex_lock(&tr->lock);

	tr->curvol = vol / 2048;

	write_i2c(tr, 2, TDA7318_ADDR, tr->curvol ^ 0x1f);

	mutex_unlock(&tr->lock);

}



static int basstreble2chip[15] = {

	0, 1, 2, 3, 4, 5, 6, 7, 14, 13, 12, 11, 10, 9, 8

};

	struct trust *tr = container_of(isa, struct trust, isa);



static void tr_setbass(struct trust *tr, __u16 bass)

{

	mutex_lock(&tr->lock);

	tr->curbass = bass / 4370;

	write_i2c(tr, 2, TDA7318_ADDR, 0x60 | basstreble2chip[tr->curbass]);

	mutex_unlock(&tr->lock);

	tr->ioval = (tr->ioval & 0xf7) | (mute << 3);

	outb(tr->ioval, isa->io);

	write_i2c(tr, 2, TDA7318_ADDR, vol ^ 0x1f);

	return 0;

}



static void tr_settreble(struct trust *tr, __u16 treble)

static int trust_s_stereo(struct radio_isa_card *isa, bool stereo)

{

	mutex_lock(&tr->lock);

	tr->curtreble = treble / 4370;

	write_i2c(tr, 2, TDA7318_ADDR, 0x70 | basstreble2chip[tr->curtreble]);

	mutex_unlock(&tr->lock);

}

	struct trust *tr = container_of(isa, struct trust, isa);



static void tr_setstereo(struct trust *tr, int stereo)

{

	mutex_lock(&tr->lock);

	tr->curstereo = !!stereo;

	tr->ioval = (tr->ioval & 0xfb) | (!tr->curstereo << 2);

	outb(tr->ioval, tr->io);

	mutex_unlock(&tr->lock);

}



static void tr_setmute(struct trust *tr, int mute)

{

	mutex_lock(&tr->lock);

	tr->curmute = !!mute;

	tr->ioval = (tr->ioval & 0xf7) | (tr->curmute << 3);

	outb(tr->ioval, tr->io);

	mutex_unlock(&tr->lock);

	tr->ioval = (tr->ioval & 0xfb) | (!stereo << 2);

	outb(tr->ioval, isa->io);

	return 0;

}



static int tr_getsigstr(struct trust *tr)

static u32 trust_g_signal(struct radio_isa_card *isa)

{

	int i, v;



	mutex_lock(&tr->lock);

	for (i = 0, v = 0; i < 100; i++)

		v |= inb(tr->io);

	mutex_unlock(&tr->lock);

		v |= inb(isa->io);

	return (v & 1) ? 0 : 0xffff;

}



static int tr_getstereo(struct trust *tr)

{

	/* don't know how to determine it, just return the setting */

	return tr->curstereo;

}



static void tr_setfreq(struct trust *tr, unsigned long f)

{

	mutex_lock(&tr->lock);

	tr->curfreq = f;

	f /= 160;	/* Convert to 10 kHz units	*/

	f += 1070;	/* Add 10.7 MHz IF		*/

	write_i2c(tr, 5, TSA6060T_ADDR, (f << 1) | 1, f >> 7, 0x60 | ((f >> 15) & 1), 0);

	mutex_unlock(&tr->lock);

}



static int vidioc_querycap(struct file *file, void *priv,

				struct v4l2_capability *v)

{

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

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

	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));

	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;

	return 0;

}



static int vidioc_g_tuner(struct file *file, void *priv,

				struct v4l2_tuner *v)

static int trust_s_frequency(struct radio_isa_card *isa, u32 freq)

{

	struct trust *tr = video_drvdata(file);

	struct trust *tr = container_of(isa, struct trust, isa);



	if (v->index > 0)

		return -EINVAL;



	strlcpy(v->name, "FM", sizeof(v->name));

	v->type = V4L2_TUNER_RADIO;

	v->rangelow = 87.5 * 16000;

	v->rangehigh = 108 * 16000;

	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;

	v->capability = V4L2_TUNER_CAP_LOW;

	if (tr_getstereo(tr))

		v->audmode = V4L2_TUNER_MODE_STEREO;

	else

		v->audmode = V4L2_TUNER_MODE_MONO;

	v->signal = tr_getsigstr(tr);

	return 0;

}



static int vidioc_s_tuner(struct file *file, void *priv,

				struct v4l2_tuner *v)

{

	struct trust *tr = video_drvdata(file);



	if (v->index)

		return -EINVAL;

	tr_setstereo(tr, v->audmode == V4L2_TUNER_MODE_STEREO);

	freq /= 160;	/* Convert to 10 kHz units	*/

	freq += 1070;	/* Add 10.7 MHz IF		*/

	write_i2c(tr, 5, TSA6060T_ADDR, (freq << 1) | 1,

			freq >> 7, 0x60 | ((freq >> 15) & 1), 0);

	return 0;

}



static int vidioc_s_frequency(struct file *file, void *priv,

				struct v4l2_frequency *f)

{

	struct trust *tr = video_drvdata(file);



	if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)

		return -EINVAL;

	tr_setfreq(tr, f->frequency);

	return 0;

}



static int vidioc_g_frequency(struct file *file, void *priv,

				struct v4l2_frequency *f)

{

	struct trust *tr = video_drvdata(file);



	if (f->tuner != 0)

		return -EINVAL;

	f->type = V4L2_TUNER_RADIO;

	f->frequency = tr->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, 65535, 2048, 65535);

	case V4L2_CID_AUDIO_BASS:

	case V4L2_CID_AUDIO_TREBLE:

		return v4l2_ctrl_query_fill(qc, 0, 65535, 4370, 32768);

	}

	return -EINVAL;

}



static int vidioc_g_ctrl(struct file *file, void *priv,

				struct v4l2_control *ctrl)

{

	struct trust *tr = video_drvdata(file);



	switch (ctrl->id) {

	case V4L2_CID_AUDIO_MUTE:

		ctrl->value = tr->curmute;

		return 0;

	case V4L2_CID_AUDIO_VOLUME:

		ctrl->value = tr->curvol * 2048;

		return 0;

	case V4L2_CID_AUDIO_BASS:

		ctrl->value = tr->curbass * 4370;

		return 0;

	case V4L2_CID_AUDIO_TREBLE:

		ctrl->value = tr->curtreble * 4370;

		return 0;

	}

	return -EINVAL;

}

static int basstreble2chip[15] = {

	0, 1, 2, 3, 4, 5, 6, 7, 14, 13, 12, 11, 10, 9, 8

};



static int vidioc_s_ctrl(struct file *file, void *priv,

				struct v4l2_control *ctrl)

static int trust_s_ctrl(struct v4l2_ctrl *ctrl)

{

	struct trust *tr = video_drvdata(file);

	struct radio_isa_card *isa =

		container_of(ctrl->handler, struct radio_isa_card, hdl);

	struct trust *tr = container_of(isa, struct trust, isa);



	switch (ctrl->id) {

	case V4L2_CID_AUDIO_MUTE:

		tr_setmute(tr, ctrl->value);

		return 0;

	case V4L2_CID_AUDIO_VOLUME:

		tr_setvol(tr, ctrl->value);

		return 0;

	case V4L2_CID_AUDIO_BASS:

		tr_setbass(tr, ctrl->value);

		write_i2c(tr, 2, TDA7318_ADDR, 0x60 | basstreble2chip[ctrl->val]);

		return 0;

	case V4L2_CID_AUDIO_TREBLE:

		tr_settreble(tr, ctrl->value);

		write_i2c(tr, 2, TDA7318_ADDR, 0x70 | basstreble2chip[ctrl->val]);

		return 0;

	}

	return -EINVAL;

}



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 const struct v4l2_file_operations trust_fops = {

	.owner		= THIS_MODULE,

	.unlocked_ioctl	= video_ioctl2,

};



static const struct v4l2_ioctl_ops trust_ioctl_ops = {

	.vidioc_querycap    = vidioc_querycap,

	.vidioc_g_tuner     = vidioc_g_tuner,

	.vidioc_s_tuner     = vidioc_s_tuner,

	.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,

	.vidioc_g_audio     = vidioc_g_audio,

	.vidioc_s_audio     = vidioc_s_audio,

	.vidioc_g_input     = vidioc_g_input,

	.vidioc_s_input     = vidioc_s_input,

static const struct v4l2_ctrl_ops trust_ctrl_ops = {

	.s_ctrl = trust_s_ctrl,

};



static int __init trust_init(void)

static int trust_initialize(struct radio_isa_card *isa)

{

	struct trust *tr = &trust_card;

	struct v4l2_device *v4l2_dev = &tr->v4l2_dev;

	int res;

	struct trust *tr = container_of(isa, struct trust, isa);



	strlcpy(v4l2_dev->name, "trust", sizeof(v4l2_dev->name));

	tr->io = io;

	tr->ioval = 0xf;

	mutex_init(&tr->lock);



	if (tr->io == -1) {

		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x0x350 or 0x358\n");

		return -EINVAL;

	}

	if (!request_region(tr->io, 2, "Trust FM Radio")) {

		v4l2_err(v4l2_dev, "port 0x%x already in use\n", tr->io);

		return -EBUSY;

	}



	res = v4l2_device_register(NULL, v4l2_dev);

	if (res < 0) {

		release_region(tr->io, 2);

		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");

		return res;

	}



	strlcpy(tr->vdev.name, v4l2_dev->name, sizeof(tr->vdev.name));

	tr->vdev.v4l2_dev = v4l2_dev;

	tr->vdev.fops = &trust_fops;

	tr->vdev.ioctl_ops = &trust_ioctl_ops;

	tr->vdev.release = video_device_release_empty;

	video_set_drvdata(&tr->vdev, tr);



	write_i2c(tr, 2, TDA7318_ADDR, 0x80);	/* speaker att. LF = 0 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0xa0);	/* speaker att. RF = 0 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0xc0);	/* speaker att. LR = 0 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0xe0);	/* speaker att. RR = 0 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0x40);	/* stereo 1 input, gain = 18.75 dB */



	tr_setvol(tr, 0xffff);

	tr_setbass(tr, 0x8000);

	tr_settreble(tr, 0x8000);

	tr_setstereo(tr, 1);



	/* mute card - prevents noisy bootups */

	tr_setmute(tr, 1);



	if (video_register_device(&tr->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {

		v4l2_device_unregister(v4l2_dev);

		release_region(tr->io, 2);

		return -EINVAL;

	v4l2_ctrl_new_std(&isa->hdl, &trust_ctrl_ops,

				V4L2_CID_AUDIO_BASS, 0, 15, 1, 8);

	v4l2_ctrl_new_std(&isa->hdl, &trust_ctrl_ops,

				V4L2_CID_AUDIO_TREBLE, 0, 15, 1, 8);

	return isa->hdl.error;

}



	v4l2_info(v4l2_dev, "Trust FM Radio card driver v1.0.\n");

static const struct radio_isa_ops trust_ops = {

	.init = trust_initialize,

	.alloc = trust_alloc,

	.s_mute_volume = trust_s_mute_volume,

	.s_frequency = trust_s_frequency,

	.s_stereo = trust_s_stereo,

	.g_signal = trust_g_signal,

};



	return 0;

}

static const int trust_ioports[] = { 0x350, 0x358 };



static struct radio_isa_driver trust_driver = {

	.driver = {

		.match		= radio_isa_match,

		.probe		= radio_isa_probe,

		.remove		= radio_isa_remove,

		.driver		= {

			.name	= "radio-trust",

		},

	},

	.io_params = io,

	.radio_nr_params = radio_nr,

	.io_ports = trust_ioports,

	.num_of_io_ports = ARRAY_SIZE(trust_ioports),

	.region_size = 2,

	.card = "Trust FM Radio",

	.ops = &trust_ops,

	.has_stereo = true,

	.max_volume = 31,

};



static void __exit cleanup_trust_module(void)

static int __init trust_init(void)

{

	struct trust *tr = &trust_card;

	return isa_register_driver(&trust_driver.driver, TRUST_MAX);

}



	video_unregister_device(&tr->vdev);

	v4l2_device_unregister(&tr->v4l2_dev);

	release_region(tr->io, 2);

static void __exit trust_exit(void)

{

	isa_unregister_driver(&trust_driver.driver);

}



module_init(trust_init);

module_exit(cleanup_trust_module);
 
module_exit(trust_exit);