[deliverable/linux.git] / drivers / media / usb / tlg2300 / pd-radio.c

#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/bitmap.h>
#include <linux/usb.h>
#include <linux/i2c.h>
#include <media/v4l2-dev.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fh.h>
#include <linux/sched.h>

#include "pd-common.h"
#include "vendorcmds.h"

static int set_frequency(struct poseidon *p, __u32 frequency);
static int poseidon_fm_close(struct file *filp);
static int poseidon_fm_open(struct file *filp);

#define TUNER_FREQ_MIN_FM 76000000U
#define TUNER_FREQ_MAX_FM 108000000U

#define MAX_PREEMPHASIS (V4L2_PREEMPHASIS_75_uS + 1)
static int preemphasis[MAX_PREEMPHASIS] = {
	TLG_TUNE_ASTD_NONE,   /* V4L2_PREEMPHASIS_DISABLED */
	TLG_TUNE_ASTD_FM_EUR, /* V4L2_PREEMPHASIS_50_uS    */
	TLG_TUNE_ASTD_FM_US,  /* V4L2_PREEMPHASIS_75_uS    */
};

static int poseidon_check_mode_radio(struct poseidon *p)
{
	int ret;
	u32 status;

	set_current_state(TASK_INTERRUPTIBLE);
	schedule_timeout(HZ/2);
	ret = usb_set_interface(p->udev, 0, BULK_ALTERNATE_IFACE);
	if (ret < 0)
		goto out;

	ret = set_tuner_mode(p, TLG_MODE_FM_RADIO);
	if (ret != 0)
		goto out;

	ret = send_set_req(p, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &status);
	ret = send_set_req(p, TUNER_AUD_ANA_STD,
				p->radio_data.pre_emphasis, &status);
	ret |= send_set_req(p, TUNER_AUD_MODE,
				TLG_TUNE_TVAUDIO_MODE_STEREO, &status);
	ret |= send_set_req(p, AUDIO_SAMPLE_RATE_SEL,
				ATV_AUDIO_RATE_48K, &status);
	ret |= send_set_req(p, TUNE_FREQ_SELECT, TUNER_FREQ_MIN_FM, &status);
out:
	return ret;
}

#ifdef CONFIG_PM
static int pm_fm_suspend(struct poseidon *p)
{
	logpm(p);
	pm_alsa_suspend(p);
	usb_set_interface(p->udev, 0, 0);
	msleep(300);
	return 0;
}

static int pm_fm_resume(struct poseidon *p)
{
	logpm(p);
	poseidon_check_mode_radio(p);
	set_frequency(p, p->radio_data.fm_freq);
	pm_alsa_resume(p);
	return 0;
}
#endif

static int poseidon_fm_open(struct file *filp)
{
	struct poseidon *p = video_drvdata(filp);
	int ret = 0;

	mutex_lock(&p->lock);
	if (p->state & POSEIDON_STATE_DISCONNECT) {
		ret = -ENODEV;
		goto out;
	}

	if (p->state && !(p->state & POSEIDON_STATE_FM)) {
		ret = -EBUSY;
		goto out;
	}
	ret = v4l2_fh_open(filp);
	if (ret)
		goto out;

	usb_autopm_get_interface(p->interface);
	if (0 == p->state) {
		struct video_device *vfd = &p->radio_data.fm_dev;

		/* default pre-emphasis */
		if (p->radio_data.pre_emphasis == 0)
			p->radio_data.pre_emphasis = TLG_TUNE_ASTD_FM_EUR;
		set_debug_mode(vfd, debug_mode);

		ret = poseidon_check_mode_radio(p);
		if (ret < 0) {
			usb_autopm_put_interface(p->interface);
			goto out;
		}
		p->state |= POSEIDON_STATE_FM;
	}
	kref_get(&p->kref);
out:
	mutex_unlock(&p->lock);
	return ret;
}

static int poseidon_fm_close(struct file *filp)
{
	struct poseidon *p = video_drvdata(filp);
	struct radio_data *fm = &p->radio_data;
	uint32_t status;

	mutex_lock(&p->lock);
	if (v4l2_fh_is_singular_file(filp))
		p->state &= ~POSEIDON_STATE_FM;

	if (fm->is_radio_streaming && filp == p->file_for_stream) {
		fm->is_radio_streaming = 0;
		send_set_req(p, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, &status);
	}
	usb_autopm_put_interface(p->interface);
	mutex_unlock(&p->lock);

	kref_put(&p->kref, poseidon_delete);
	return v4l2_fh_release(filp);
}

static int vidioc_querycap(struct file *file, void *priv,
			struct v4l2_capability *v)
{
	struct poseidon *p = video_drvdata(file);

	strlcpy(v->driver, "tele-radio", sizeof(v->driver));
	strlcpy(v->card, "Telegent Poseidon", sizeof(v->card));
	usb_make_path(p->udev, v->bus_info, sizeof(v->bus_info));
	v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
	/* Report all capabilities of the USB device */
	v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS |
			V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE |
			V4L2_CAP_AUDIO | V4L2_CAP_STREAMING |
			V4L2_CAP_READWRITE;
	return 0;
}

static const struct v4l2_file_operations poseidon_fm_fops = {
	.owner         = THIS_MODULE,
	.open          = poseidon_fm_open,
	.release       = poseidon_fm_close,
	.poll		= v4l2_ctrl_poll,
	.unlocked_ioctl = video_ioctl2,
};

static int tlg_fm_vidioc_g_tuner(struct file *file, void *priv,
				 struct v4l2_tuner *vt)
{
	struct poseidon *p = video_drvdata(file);
	struct tuner_fm_sig_stat_s fm_stat = {};
	int ret, status, count = 5;

	if (vt->index != 0)
		return -EINVAL;

	vt->type	= V4L2_TUNER_RADIO;
	vt->capability	= V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW;
	vt->rangelow	= TUNER_FREQ_MIN_FM * 2 / 125;
	vt->rangehigh	= TUNER_FREQ_MAX_FM * 2 / 125;
	vt->rxsubchans	= V4L2_TUNER_SUB_STEREO;
	vt->audmode	= V4L2_TUNER_MODE_STEREO;
	vt->signal	= 0;
	vt->afc 	= 0;
	strlcpy(vt->name, "Radio", sizeof(vt->name));

	mutex_lock(&p->lock);
	ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO,
			      &fm_stat, &status, sizeof(fm_stat));

	while (fm_stat.sig_lock_busy && count-- && !ret) {
		set_current_state(TASK_INTERRUPTIBLE);
		schedule_timeout(HZ);

		ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO,
				  &fm_stat, &status, sizeof(fm_stat));
	}
	mutex_unlock(&p->lock);

	if (ret || status) {
		vt->signal = 0;
	} else if ((fm_stat.sig_present || fm_stat.sig_locked)
			&& fm_stat.sig_strength == 0) {
		vt->signal = 0xffff;
	} else
		vt->signal = (fm_stat.sig_strength * 255 / 10) << 8;

	return 0;
}

static int fm_get_freq(struct file *file, void *priv,
		       struct v4l2_frequency *argp)
{
	struct poseidon *p = video_drvdata(file);

	if (argp->tuner)
		return -EINVAL;
	argp->frequency = p->radio_data.fm_freq;
	return 0;
}

static int set_frequency(struct poseidon *p, __u32 frequency)
{
	__u32 freq ;
	int ret, status;

	mutex_lock(&p->lock);

	ret = send_set_req(p, TUNER_AUD_ANA_STD,
				p->radio_data.pre_emphasis, &status);

	freq = (frequency * 125) / 2; /* Hz */
	freq = clamp(freq, TUNER_FREQ_MIN_FM, TUNER_FREQ_MAX_FM);

	ret = send_set_req(p, TUNE_FREQ_SELECT, freq, &status);
	if (ret < 0)
		goto error ;
	ret = send_set_req(p, TAKE_REQUEST, 0, &status);

	set_current_state(TASK_INTERRUPTIBLE);
	schedule_timeout(HZ/4);
	if (!p->radio_data.is_radio_streaming) {
		ret = send_set_req(p, TAKE_REQUEST, 0, &status);
		ret = send_set_req(p, PLAY_SERVICE,
				TLG_TUNE_PLAY_SVC_START, &status);
		p->radio_data.is_radio_streaming = 1;
	}
	p->radio_data.fm_freq = freq * 2 / 125;
error:
	mutex_unlock(&p->lock);
	return ret;
}

static int fm_set_freq(struct file *file, void *priv,
		       const struct v4l2_frequency *argp)
{
	struct poseidon *p = video_drvdata(file);

	if (argp->tuner)
		return -EINVAL;
	p->file_for_stream = file;
#ifdef CONFIG_PM
	p->pm_suspend = pm_fm_suspend;
	p->pm_resume  = pm_fm_resume;
#endif
	return set_frequency(p, argp->frequency);
}

static int tlg_fm_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct poseidon *p = container_of(ctrl->handler, struct poseidon,
						radio_data.ctrl_handler);
	int pre_emphasis;
	u32 status;

	switch (ctrl->id) {
	case V4L2_CID_TUNE_PREEMPHASIS:
		pre_emphasis = preemphasis[ctrl->val];
		send_set_req(p, TUNER_AUD_ANA_STD, pre_emphasis, &status);
		p->radio_data.pre_emphasis = pre_emphasis;
		return 0;
	}
	return -EINVAL;
}

static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
{
	return vt->index > 0 ? -EINVAL : 0;
}

static const struct v4l2_ctrl_ops tlg_fm_ctrl_ops = {
	.s_ctrl = tlg_fm_s_ctrl,
};

static const struct v4l2_ioctl_ops poseidon_fm_ioctl_ops = {
	.vidioc_querycap    = vidioc_querycap,
	.vidioc_s_tuner     = vidioc_s_tuner,
	.vidioc_g_tuner     = tlg_fm_vidioc_g_tuner,
	.vidioc_g_frequency = fm_get_freq,
	.vidioc_s_frequency = fm_set_freq,
	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};

static struct video_device poseidon_fm_template = {
	.name       = "Telegent-Radio",
	.fops       = &poseidon_fm_fops,
	.minor      = -1,
	.release    = video_device_release_empty,
	.ioctl_ops  = &poseidon_fm_ioctl_ops,
};

int poseidon_fm_init(struct poseidon *p)
{
	struct video_device *vfd = &p->radio_data.fm_dev;
	struct v4l2_ctrl_handler *hdl = &p->radio_data.ctrl_handler;

	*vfd = poseidon_fm_template;

	set_frequency(p, TUNER_FREQ_MIN_FM);
	v4l2_ctrl_handler_init(hdl, 1);
	v4l2_ctrl_new_std_menu(hdl, &tlg_fm_ctrl_ops, V4L2_CID_TUNE_PREEMPHASIS,
			V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS);
	if (hdl->error) {
		v4l2_ctrl_handler_free(hdl);
		return hdl->error;
	}
	vfd->v4l2_dev = &p->v4l2_dev;
	vfd->ctrl_handler = hdl;
	set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
	video_set_drvdata(vfd, p);
	return video_register_device(vfd, VFL_TYPE_RADIO, -1);
}

int poseidon_fm_exit(struct poseidon *p)
{
	video_unregister_device(&p->radio_data.fm_dev);
	v4l2_ctrl_handler_free(&p->radio_data.ctrl_handler);
	return 0;
}
Commit	Line	Data
5b3f03f0 HS	1	#include <linux/init.h>
	2	#include <linux/list.h>
	3	#include <linux/module.h>
	4	#include <linux/kernel.h>
	5	#include <linux/bitmap.h>
	6	#include <linux/usb.h>
	7	#include <linux/i2c.h>
	8	#include <media/v4l2-dev.h>
5b3f03f0 HS	9	#include <linux/mm.h>
	10	#include <linux/mutex.h>
	11	#include <media/v4l2-ioctl.h>
668cb00e HV	12	#include <media/v4l2-event.h>
668cb00e HV	13	#include <media/v4l2-fh.h>
5b3f03f0 HS	14	#include <linux/sched.h>
	15
	16	#include "pd-common.h"
	17	#include "vendorcmds.h"
	18
	19	static int set_frequency(struct poseidon *p, __u32 frequency);
	20	static int poseidon_fm_close(struct file *filp);
	21	static int poseidon_fm_open(struct file *filp);
	22
8bdfe557 HV	23	#define TUNER_FREQ_MIN_FM 76000000U
8bdfe557 HV	24	#define TUNER_FREQ_MAX_FM 108000000U
5b3f03f0	25
007ad830 HS	26	#define MAX_PREEMPHASIS (V4L2_PREEMPHASIS_75_uS + 1)
	27	static int preemphasis[MAX_PREEMPHASIS] = {
	28	TLG_TUNE_ASTD_NONE, /* V4L2_PREEMPHASIS_DISABLED */
	29	TLG_TUNE_ASTD_FM_EUR, /* V4L2_PREEMPHASIS_50_uS */
	30	TLG_TUNE_ASTD_FM_US, /* V4L2_PREEMPHASIS_75_uS */
	31	};
	32
5b3f03f0 HS	33	static int poseidon_check_mode_radio(struct poseidon *p)
5b3f03f0 HS	34	{
007ad830	35	int ret;
5b3f03f0 HS	36	u32 status;
	37
	38	set_current_state(TASK_INTERRUPTIBLE);
	39	schedule_timeout(HZ/2);
	40	ret = usb_set_interface(p->udev, 0, BULK_ALTERNATE_IFACE);
	41	if (ret < 0)
	42	goto out;
	43
	44	ret = set_tuner_mode(p, TLG_MODE_FM_RADIO);
	45	if (ret != 0)
	46	goto out;
	47
	48	ret = send_set_req(p, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &status);
007ad830 HS	49	ret = send_set_req(p, TUNER_AUD_ANA_STD,
007ad830 HS	50	p->radio_data.pre_emphasis, &status);
5b3f03f0 HS	51	ret \|= send_set_req(p, TUNER_AUD_MODE,
	52	TLG_TUNE_TVAUDIO_MODE_STEREO, &status);
	53	ret \|= send_set_req(p, AUDIO_SAMPLE_RATE_SEL,
	54	ATV_AUDIO_RATE_48K, &status);
	55	ret \|= send_set_req(p, TUNE_FREQ_SELECT, TUNER_FREQ_MIN_FM, &status);
	56	out:
	57	return ret;
	58	}
	59
	60	#ifdef CONFIG_PM
	61	static int pm_fm_suspend(struct poseidon *p)
	62	{
	63	logpm(p);
	64	pm_alsa_suspend(p);
	65	usb_set_interface(p->udev, 0, 0);
	66	msleep(300);
	67	return 0;
	68	}
	69
	70	static int pm_fm_resume(struct poseidon *p)
	71	{
	72	logpm(p);
	73	poseidon_check_mode_radio(p);
	74	set_frequency(p, p->radio_data.fm_freq);
	75	pm_alsa_resume(p);
	76	return 0;
	77	}
	78	#endif
	79
	80	static int poseidon_fm_open(struct file *filp)
	81	{
668cb00e	82	struct poseidon *p = video_drvdata(filp);
5b3f03f0 HS	83	int ret = 0;
5b3f03f0 HS	84
5b3f03f0 HS	85	mutex_lock(&p->lock);
	86	if (p->state & POSEIDON_STATE_DISCONNECT) {
	87	ret = -ENODEV;
	88	goto out;
	89	}
	90
	91	if (p->state && !(p->state & POSEIDON_STATE_FM)) {
	92	ret = -EBUSY;
	93	goto out;
	94	}
668cb00e HV	95	ret = v4l2_fh_open(filp);
	96	if (ret)
	97	goto out;
5b3f03f0 HS	98
	99	usb_autopm_get_interface(p->interface);
	100	if (0 == p->state) {
668cb00e HV	101	struct video_device *vfd = &p->radio_data.fm_dev;
668cb00e HV	102
007ad830 HS	103	/* default pre-emphasis */
	104	if (p->radio_data.pre_emphasis == 0)
	105	p->radio_data.pre_emphasis = TLG_TUNE_ASTD_FM_EUR;
5b3f03f0 HS	106	set_debug_mode(vfd, debug_mode);
	107
	108	ret = poseidon_check_mode_radio(p);
	109	if (ret < 0) {
	110	usb_autopm_put_interface(p->interface);
	111	goto out;
	112	}
	113	p->state \|= POSEIDON_STATE_FM;
	114	}
5b3f03f0	115	kref_get(&p->kref);
5b3f03f0 HS	116	out:
	117	mutex_unlock(&p->lock);
	118	return ret;
	119	}
	120
	121	static int poseidon_fm_close(struct file *filp)
	122	{
668cb00e	123	struct poseidon *p = video_drvdata(filp);
5b3f03f0 HS	124	struct radio_data *fm = &p->radio_data;
	125	uint32_t status;
	126
	127	mutex_lock(&p->lock);
668cb00e	128	if (v4l2_fh_is_singular_file(filp))
5b3f03f0 HS	129	p->state &= ~POSEIDON_STATE_FM;
	130
	131	if (fm->is_radio_streaming && filp == p->file_for_stream) {
	132	fm->is_radio_streaming = 0;
	133	send_set_req(p, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, &status);
	134	}
	135	usb_autopm_put_interface(p->interface);
	136	mutex_unlock(&p->lock);
	137
	138	kref_put(&p->kref, poseidon_delete);
668cb00e	139	return v4l2_fh_release(filp);
5b3f03f0 HS	140	}
	141
	142	static int vidioc_querycap(struct file file, void priv,
	143	struct v4l2_capability *v)
	144	{
668cb00e	145	struct poseidon *p = video_drvdata(file);
5b3f03f0 HS	146
	147	strlcpy(v->driver, "tele-radio", sizeof(v->driver));
	148	strlcpy(v->card, "Telegent Poseidon", sizeof(v->card));
	149	usb_make_path(p->udev, v->bus_info, sizeof(v->bus_info));
42e509c6 HV	150	v->device_caps = V4L2_CAP_TUNER \| V4L2_CAP_RADIO;
	151	/* Report all capabilities of the USB device */
	152	v->capabilities = v->device_caps \| V4L2_CAP_DEVICE_CAPS \|
	153	V4L2_CAP_VIDEO_CAPTURE \| V4L2_CAP_VBI_CAPTURE \|
	154	V4L2_CAP_AUDIO \| V4L2_CAP_STREAMING \|
	155	V4L2_CAP_READWRITE;
5b3f03f0 HS	156	return 0;
	157	}
	158
	159	static const struct v4l2_file_operations poseidon_fm_fops = {
	160	.owner = THIS_MODULE,
	161	.open = poseidon_fm_open,
	162	.release = poseidon_fm_close,
668cb00e	163	.poll = v4l2_ctrl_poll,
54dd0dde	164	.unlocked_ioctl = video_ioctl2,
5b3f03f0 HS	165	};
5b3f03f0 HS	166
278a58cf MN	167	static int tlg_fm_vidioc_g_tuner(struct file file, void priv,
278a58cf MN	168	struct v4l2_tuner *vt)
5b3f03f0	169	{
668cb00e	170	struct poseidon *p = video_drvdata(file);
5b3f03f0 HS	171	struct tuner_fm_sig_stat_s fm_stat = {};
5b3f03f0 HS	172	int ret, status, count = 5;
5b3f03f0 HS	173
	174	if (vt->index != 0)
	175	return -EINVAL;
	176
	177	vt->type = V4L2_TUNER_RADIO;
8bdfe557 HV	178	vt->capability = V4L2_TUNER_CAP_STEREO \| V4L2_TUNER_CAP_LOW;
	179	vt->rangelow = TUNER_FREQ_MIN_FM * 2 / 125;
	180	vt->rangehigh = TUNER_FREQ_MAX_FM * 2 / 125;
5b3f03f0 HS	181	vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
	182	vt->audmode = V4L2_TUNER_MODE_STEREO;
	183	vt->signal = 0;
	184	vt->afc = 0;
8bdfe557	185	strlcpy(vt->name, "Radio", sizeof(vt->name));
5b3f03f0 HS	186
	187	mutex_lock(&p->lock);
	188	ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO,
	189	&fm_stat, &status, sizeof(fm_stat));
	190
	191	while (fm_stat.sig_lock_busy && count-- && !ret) {
	192	set_current_state(TASK_INTERRUPTIBLE);
	193	schedule_timeout(HZ);
	194
	195	ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO,
	196	&fm_stat, &status, sizeof(fm_stat));
	197	}
	198	mutex_unlock(&p->lock);
	199
	200	if (ret \|\| status) {
	201	vt->signal = 0;
	202	} else if ((fm_stat.sig_present \|\| fm_stat.sig_locked)
	203	&& fm_stat.sig_strength == 0) {
	204	vt->signal = 0xffff;
	205	} else
	206	vt->signal = (fm_stat.sig_strength * 255 / 10) << 8;
	207
	208	return 0;
	209	}
	210
278a58cf MN	211	static int fm_get_freq(struct file file, void priv,
278a58cf MN	212	struct v4l2_frequency *argp)
5b3f03f0	213	{
668cb00e	214	struct poseidon *p = video_drvdata(file);
5b3f03f0	215
8bdfe557 HV	216	if (argp->tuner)
8bdfe557 HV	217	return -EINVAL;
5b3f03f0 HS	218	argp->frequency = p->radio_data.fm_freq;
	219	return 0;
	220	}
	221
	222	static int set_frequency(struct poseidon *p, __u32 frequency)
	223	{
	224	__u32 freq ;
007ad830	225	int ret, status;
5b3f03f0 HS	226
	227	mutex_lock(&p->lock);
	228
007ad830 HS	229	ret = send_set_req(p, TUNER_AUD_ANA_STD,
007ad830 HS	230	p->radio_data.pre_emphasis, &status);
5b3f03f0	231
8bdfe557 HV	232	freq = (frequency * 125) / 2; /* Hz */
8bdfe557 HV	233	freq = clamp(freq, TUNER_FREQ_MIN_FM, TUNER_FREQ_MAX_FM);
5b3f03f0 HS	234
	235	ret = send_set_req(p, TUNE_FREQ_SELECT, freq, &status);
	236	if (ret < 0)
	237	goto error ;
	238	ret = send_set_req(p, TAKE_REQUEST, 0, &status);
	239
	240	set_current_state(TASK_INTERRUPTIBLE);
	241	schedule_timeout(HZ/4);
	242	if (!p->radio_data.is_radio_streaming) {
	243	ret = send_set_req(p, TAKE_REQUEST, 0, &status);
	244	ret = send_set_req(p, PLAY_SERVICE,
	245	TLG_TUNE_PLAY_SVC_START, &status);
	246	p->radio_data.is_radio_streaming = 1;
	247	}
8bdfe557	248	p->radio_data.fm_freq = freq * 2 / 125;
5b3f03f0 HS	249	error:
	250	mutex_unlock(&p->lock);
	251	return ret;
	252	}
	253
278a58cf	254	static int fm_set_freq(struct file file, void priv,
b530a447	255	const struct v4l2_frequency *argp)
5b3f03f0	256	{
668cb00e	257	struct poseidon *p = video_drvdata(file);
5b3f03f0	258
8bdfe557 HV	259	if (argp->tuner)
	260	return -EINVAL;
	261	p->file_for_stream = file;
5b3f03f0 HS	262	#ifdef CONFIG_PM
	263	p->pm_suspend = pm_fm_suspend;
	264	p->pm_resume = pm_fm_resume;
	265	#endif
	266	return set_frequency(p, argp->frequency);
	267	}
	268
173fdb8a	269	static int tlg_fm_s_ctrl(struct v4l2_ctrl *ctrl)
5b3f03f0	270	{
173fdb8a HV	271	struct poseidon *p = container_of(ctrl->handler, struct poseidon,
	272	radio_data.ctrl_handler);
	273	int pre_emphasis;
	274	u32 status;
007ad830	275
173fdb8a HV	276	switch (ctrl->id) {
	277	case V4L2_CID_TUNE_PREEMPHASIS:
	278	pre_emphasis = preemphasis[ctrl->val];
	279	send_set_req(p, TUNER_AUD_ANA_STD, pre_emphasis, &status);
	280	p->radio_data.pre_emphasis = pre_emphasis;
007ad830 HS	281	return 0;
	282	}
	283	return -EINVAL;
	284	}
	285
5b3f03f0 HS	286	static int vidioc_s_tuner(struct file file, void priv, struct v4l2_tuner *vt)
	287	{
	288	return vt->index > 0 ? -EINVAL : 0;
	289	}
5b3f03f0	290
173fdb8a HV	291	static const struct v4l2_ctrl_ops tlg_fm_ctrl_ops = {
	292	.s_ctrl = tlg_fm_s_ctrl,
	293	};
	294
5b3f03f0 HS	295	static const struct v4l2_ioctl_ops poseidon_fm_ioctl_ops = {
5b3f03f0 HS	296	.vidioc_querycap = vidioc_querycap,
5b3f03f0 HS	297	.vidioc_s_tuner = vidioc_s_tuner,
	298	.vidioc_g_tuner = tlg_fm_vidioc_g_tuner,
	299	.vidioc_g_frequency = fm_get_freq,
	300	.vidioc_s_frequency = fm_set_freq,
668cb00e HV	301	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
668cb00e HV	302	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
5b3f03f0 HS	303	};
	304
	305	static struct video_device poseidon_fm_template = {
	306	.name = "Telegent-Radio",
	307	.fops = &poseidon_fm_fops,
	308	.minor = -1,
6fef4907	309	.release = video_device_release_empty,
5b3f03f0 HS	310	.ioctl_ops = &poseidon_fm_ioctl_ops,
	311	};
	312
	313	int poseidon_fm_init(struct poseidon *p)
	314	{
6fef4907	315	struct video_device *vfd = &p->radio_data.fm_dev;
173fdb8a	316	struct v4l2_ctrl_handler *hdl = &p->radio_data.ctrl_handler;
5b3f03f0	317
6fef4907	318	*vfd = poseidon_fm_template;
5b3f03f0	319
8bdfe557	320	set_frequency(p, TUNER_FREQ_MIN_FM);
173fdb8a HV	321	v4l2_ctrl_handler_init(hdl, 1);
	322	v4l2_ctrl_new_std_menu(hdl, &tlg_fm_ctrl_ops, V4L2_CID_TUNE_PREEMPHASIS,
	323	V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS);
	324	if (hdl->error) {
	325	v4l2_ctrl_handler_free(hdl);
	326	return hdl->error;
	327	}
	328	vfd->v4l2_dev = &p->v4l2_dev;
	329	vfd->ctrl_handler = hdl;
668cb00e	330	set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
173fdb8a	331	video_set_drvdata(vfd, p);
6fef4907	332	return video_register_device(vfd, VFL_TYPE_RADIO, -1);
5b3f03f0 HS	333	}
	334
	335	int poseidon_fm_exit(struct poseidon *p)
	336	{
270ecca6	337	video_unregister_device(&p->radio_data.fm_dev);
173fdb8a	338	v4l2_ctrl_handler_free(&p->radio_data.ctrl_handler);
5b3f03f0 HS	339	return 0;
5b3f03f0 HS	340	}