#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"
static int poseidon_fm_close(struct file *filp);
static int poseidon_fm_open(struct file *filp);
-#define TUNER_FREQ_MIN_FM 76000000
-#define TUNER_FREQ_MAX_FM 108000000
+#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] = {
static int poseidon_fm_open(struct file *filp)
{
- struct video_device *vfd = video_devdata(filp);
- struct poseidon *p = video_get_drvdata(vfd);
+ struct poseidon *p = video_drvdata(filp);
int ret = 0;
- if (!p)
- return -1;
-
mutex_lock(&p->lock);
if (p->state & POSEIDON_STATE_DISCONNECT) {
ret = -ENODEV;
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;
}
p->state |= POSEIDON_STATE_FM;
}
- p->radio_data.users++;
kref_get(&p->kref);
- filp->private_data = p;
out:
mutex_unlock(&p->lock);
return ret;
static int poseidon_fm_close(struct file *filp)
{
- struct poseidon *p = filp->private_data;
+ struct poseidon *p = video_drvdata(filp);
struct radio_data *fm = &p->radio_data;
uint32_t status;
mutex_lock(&p->lock);
- fm->users--;
- if (0 == fm->users)
+ if (v4l2_fh_is_singular_file(filp))
p->state &= ~POSEIDON_STATE_FM;
if (fm->is_radio_streaming && filp == p->file_for_stream) {
mutex_unlock(&p->lock);
kref_put(&p->kref, poseidon_delete);
- filp->private_data = NULL;
- return 0;
+ return v4l2_fh_release(filp);
}
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *v)
{
- struct poseidon *p = file->private_data;
+ 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->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+ 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;
}
.owner = THIS_MODULE,
.open = poseidon_fm_open,
.release = poseidon_fm_close,
- .ioctl = video_ioctl2,
+ .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;
- struct poseidon *p = file->private_data;
if (vt->index != 0)
return -EINVAL;
vt->type = V4L2_TUNER_RADIO;
- vt->capability = V4L2_TUNER_CAP_STEREO;
- vt->rangelow = TUNER_FREQ_MIN_FM / 62500;
- vt->rangehigh = TUNER_FREQ_MAX_FM / 62500;
+ 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,
static int fm_get_freq(struct file *file, void *priv,
struct v4l2_frequency *argp)
{
- struct poseidon *p = file->private_data;
+ struct poseidon *p = video_drvdata(file);
+ if (argp->tuner)
+ return -EINVAL;
argp->frequency = p->radio_data.fm_freq;
return 0;
}
ret = send_set_req(p, TUNER_AUD_ANA_STD,
p->radio_data.pre_emphasis, &status);
- freq = (frequency * 125) * 500 / 1000;/* kHZ */
- if (freq < TUNER_FREQ_MIN_FM/1000 || freq > TUNER_FREQ_MAX_FM/1000) {
- ret = -EINVAL;
- goto error;
- }
+ 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)
TLG_TUNE_PLAY_SVC_START, &status);
p->radio_data.is_radio_streaming = 1;
}
- p->radio_data.fm_freq = frequency;
+ 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,
- struct v4l2_frequency *argp)
+ const struct v4l2_frequency *argp)
{
- struct poseidon *p = file->private_data;
+ struct poseidon *p = video_drvdata(file);
- p->file_for_stream = 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;
return set_frequency(p, argp->frequency);
}
-static int tlg_fm_vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *arg)
-{
- return 0;
-}
-
-static int tlg_fm_vidioc_g_exts_ctrl(struct file *file, void *fh,
- struct v4l2_ext_controls *ctrls)
-{
- struct poseidon *p = file->private_data;
- int i;
-
- if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX)
- return -EINVAL;
-
- for (i = 0; i < ctrls->count; i++) {
- struct v4l2_ext_control *ctrl = ctrls->controls + i;
-
- if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS)
- continue;
-
- if (i < MAX_PREEMPHASIS)
- ctrl->value = p->radio_data.pre_emphasis;
- }
- return 0;
-}
-
-static int tlg_fm_vidioc_s_exts_ctrl(struct file *file, void *fh,
- struct v4l2_ext_controls *ctrls)
-{
- int i;
-
- if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX)
- return -EINVAL;
-
- for (i = 0; i < ctrls->count; i++) {
- struct v4l2_ext_control *ctrl = ctrls->controls + i;
-
- if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS)
- continue;
-
- if (ctrl->value >= 0 && ctrl->value < MAX_PREEMPHASIS) {
- struct poseidon *p = file->private_data;
- int pre_emphasis = preemphasis[ctrl->value];
- u32 status;
-
- send_set_req(p, TUNER_AUD_ANA_STD,
- pre_emphasis, &status);
- p->radio_data.pre_emphasis = pre_emphasis;
- }
- }
- return 0;
-}
-
-static int tlg_fm_vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
+static int tlg_fm_s_ctrl(struct v4l2_ctrl *ctrl)
{
- return 0;
-}
-
-static int tlg_fm_vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *ctrl)
-{
- if (!(ctrl->id & V4L2_CTRL_FLAG_NEXT_CTRL))
- return -EINVAL;
+ struct poseidon *p = container_of(ctrl->handler, struct poseidon,
+ radio_data.ctrl_handler);
+ int pre_emphasis;
+ u32 status;
- ctrl->id &= ~V4L2_CTRL_FLAG_NEXT_CTRL;
- if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS) {
- /* return the next supported control */
- ctrl->id = V4L2_CID_TUNE_PREEMPHASIS;
- v4l2_ctrl_query_fill(ctrl, V4L2_PREEMPHASIS_DISABLED,
- V4L2_PREEMPHASIS_75_uS, 1,
- V4L2_PREEMPHASIS_50_uS);
- ctrl->flags = V4L2_CTRL_FLAG_UPDATE;
+ 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 tlg_fm_vidioc_querymenu(struct file *file, void *fh,
- struct v4l2_querymenu *qmenu)
-{
- return v4l2_ctrl_query_menu(qmenu, NULL, NULL);
-}
-
static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
{
return vt->index > 0 ? -EINVAL : 0;
}
-static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *va)
-{
- return (va->index != 0) ? -EINVAL : 0;
-}
-
-static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
-{
- a->index = 0;
- a->mode = 0;
- a->capability = V4L2_AUDCAP_STEREO;
- strcpy(a->name, "Radio");
- return 0;
-}
-
-static int vidioc_s_input(struct file *filp, void *priv, u32 i)
-{
- return (i != 0) ? -EINVAL : 0;
-}
-static int vidioc_g_input(struct file *filp, void *priv, u32 *i)
-{
- return (*i != 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_g_audio = vidioc_g_audio,
- .vidioc_s_audio = vidioc_s_audio,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
- .vidioc_queryctrl = tlg_fm_vidioc_queryctrl,
- .vidioc_querymenu = tlg_fm_vidioc_querymenu,
- .vidioc_g_ctrl = tlg_fm_vidioc_g_ctrl,
- .vidioc_s_ctrl = tlg_fm_vidioc_s_ctrl,
- .vidioc_s_ext_ctrls = tlg_fm_vidioc_s_exts_ctrl,
- .vidioc_g_ext_ctrls = tlg_fm_vidioc_g_exts_ctrl,
.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,
+ .release = video_device_release_empty,
.ioctl_ops = &poseidon_fm_ioctl_ops,
};
int poseidon_fm_init(struct poseidon *p)
{
- struct video_device *fm_dev;
-
- fm_dev = vdev_init(p, &poseidon_fm_template);
- if (fm_dev == NULL)
- return -1;
-
- if (video_register_device(fm_dev, VFL_TYPE_RADIO, -1) < 0) {
- video_device_release(fm_dev);
- return -1;
+ 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;
}
- p->radio_data.fm_dev = fm_dev;
- return 0;
+ 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)
{
- destroy_video_device(&p->radio_data.fm_dev);
+ video_unregister_device(&p->radio_data.fm_dev);
+ v4l2_ctrl_handler_free(&p->radio_data.ctrl_handler);
return 0;
}
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