2010-02-02 15:07:47 +08:00
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/bitmap.h>
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#include <linux/usb.h>
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#include <linux/i2c.h>
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#include <media/v4l2-dev.h>
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#include <linux/mm.h>
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#include <linux/mutex.h>
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#include <media/v4l2-ioctl.h>
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2012-07-16 18:53:36 +08:00
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#include <media/v4l2-event.h>
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#include <media/v4l2-fh.h>
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2010-02-02 15:07:47 +08:00
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#include <linux/sched.h>
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#include "pd-common.h"
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#include "vendorcmds.h"
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static int set_frequency(struct poseidon *p, __u32 frequency);
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static int poseidon_fm_close(struct file *filp);
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static int poseidon_fm_open(struct file *filp);
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2012-07-12 23:33:41 +08:00
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#define TUNER_FREQ_MIN_FM 76000000U
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#define TUNER_FREQ_MAX_FM 108000000U
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2010-02-02 15:07:47 +08:00
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2010-02-11 14:53:51 +08:00
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#define MAX_PREEMPHASIS (V4L2_PREEMPHASIS_75_uS + 1)
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static int preemphasis[MAX_PREEMPHASIS] = {
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TLG_TUNE_ASTD_NONE, /* V4L2_PREEMPHASIS_DISABLED */
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TLG_TUNE_ASTD_FM_EUR, /* V4L2_PREEMPHASIS_50_uS */
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TLG_TUNE_ASTD_FM_US, /* V4L2_PREEMPHASIS_75_uS */
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};
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2010-02-02 15:07:47 +08:00
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static int poseidon_check_mode_radio(struct poseidon *p)
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{
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2010-02-11 14:53:51 +08:00
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int ret;
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2010-02-02 15:07:47 +08:00
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u32 status;
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(HZ/2);
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ret = usb_set_interface(p->udev, 0, BULK_ALTERNATE_IFACE);
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if (ret < 0)
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goto out;
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ret = set_tuner_mode(p, TLG_MODE_FM_RADIO);
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if (ret != 0)
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goto out;
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ret = send_set_req(p, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &status);
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2010-02-11 14:53:51 +08:00
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ret = send_set_req(p, TUNER_AUD_ANA_STD,
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p->radio_data.pre_emphasis, &status);
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2010-02-02 15:07:47 +08:00
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ret |= send_set_req(p, TUNER_AUD_MODE,
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TLG_TUNE_TVAUDIO_MODE_STEREO, &status);
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ret |= send_set_req(p, AUDIO_SAMPLE_RATE_SEL,
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ATV_AUDIO_RATE_48K, &status);
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ret |= send_set_req(p, TUNE_FREQ_SELECT, TUNER_FREQ_MIN_FM, &status);
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out:
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return ret;
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}
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#ifdef CONFIG_PM
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static int pm_fm_suspend(struct poseidon *p)
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{
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logpm(p);
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pm_alsa_suspend(p);
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usb_set_interface(p->udev, 0, 0);
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msleep(300);
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return 0;
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}
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static int pm_fm_resume(struct poseidon *p)
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{
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logpm(p);
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poseidon_check_mode_radio(p);
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set_frequency(p, p->radio_data.fm_freq);
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pm_alsa_resume(p);
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return 0;
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}
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#endif
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static int poseidon_fm_open(struct file *filp)
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{
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2012-07-16 18:53:36 +08:00
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struct poseidon *p = video_drvdata(filp);
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2010-02-02 15:07:47 +08:00
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int ret = 0;
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mutex_lock(&p->lock);
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if (p->state & POSEIDON_STATE_DISCONNECT) {
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ret = -ENODEV;
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goto out;
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}
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if (p->state && !(p->state & POSEIDON_STATE_FM)) {
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ret = -EBUSY;
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goto out;
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}
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2012-07-16 18:53:36 +08:00
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ret = v4l2_fh_open(filp);
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if (ret)
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goto out;
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2010-02-02 15:07:47 +08:00
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usb_autopm_get_interface(p->interface);
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if (0 == p->state) {
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2012-07-16 18:53:36 +08:00
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struct video_device *vfd = &p->radio_data.fm_dev;
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2010-02-11 14:53:51 +08:00
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/* default pre-emphasis */
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if (p->radio_data.pre_emphasis == 0)
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p->radio_data.pre_emphasis = TLG_TUNE_ASTD_FM_EUR;
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2010-02-02 15:07:47 +08:00
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set_debug_mode(vfd, debug_mode);
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ret = poseidon_check_mode_radio(p);
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if (ret < 0) {
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usb_autopm_put_interface(p->interface);
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goto out;
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}
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p->state |= POSEIDON_STATE_FM;
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}
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kref_get(&p->kref);
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out:
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mutex_unlock(&p->lock);
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return ret;
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}
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static int poseidon_fm_close(struct file *filp)
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{
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2012-07-16 18:53:36 +08:00
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struct poseidon *p = video_drvdata(filp);
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2010-02-02 15:07:47 +08:00
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struct radio_data *fm = &p->radio_data;
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uint32_t status;
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mutex_lock(&p->lock);
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2012-07-16 18:53:36 +08:00
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if (v4l2_fh_is_singular_file(filp))
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2010-02-02 15:07:47 +08:00
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p->state &= ~POSEIDON_STATE_FM;
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if (fm->is_radio_streaming && filp == p->file_for_stream) {
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fm->is_radio_streaming = 0;
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send_set_req(p, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, &status);
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}
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usb_autopm_put_interface(p->interface);
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mutex_unlock(&p->lock);
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kref_put(&p->kref, poseidon_delete);
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2012-07-16 18:53:36 +08:00
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return v4l2_fh_release(filp);
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2010-02-02 15:07:47 +08:00
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}
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static int vidioc_querycap(struct file *file, void *priv,
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struct v4l2_capability *v)
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{
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2012-07-16 18:53:36 +08:00
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struct poseidon *p = video_drvdata(file);
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2010-02-02 15:07:47 +08:00
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strlcpy(v->driver, "tele-radio", sizeof(v->driver));
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strlcpy(v->card, "Telegent Poseidon", sizeof(v->card));
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usb_make_path(p->udev, v->bus_info, sizeof(v->bus_info));
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2013-01-31 17:17:52 +08:00
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v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
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/* Report all capabilities of the USB device */
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v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS |
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V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE |
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V4L2_CAP_AUDIO | V4L2_CAP_STREAMING |
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V4L2_CAP_READWRITE;
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2010-02-02 15:07:47 +08:00
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return 0;
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}
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static const struct v4l2_file_operations poseidon_fm_fops = {
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.owner = THIS_MODULE,
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.open = poseidon_fm_open,
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.release = poseidon_fm_close,
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2012-07-16 18:53:36 +08:00
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.poll = v4l2_ctrl_poll,
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2012-07-12 23:33:41 +08:00
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.unlocked_ioctl = video_ioctl2,
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2010-02-02 15:07:47 +08:00
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};
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2010-03-01 14:31:02 +08:00
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static int tlg_fm_vidioc_g_tuner(struct file *file, void *priv,
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struct v4l2_tuner *vt)
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2010-02-02 15:07:47 +08:00
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{
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2012-07-16 18:53:36 +08:00
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struct poseidon *p = video_drvdata(file);
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2010-02-02 15:07:47 +08:00
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struct tuner_fm_sig_stat_s fm_stat = {};
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int ret, status, count = 5;
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if (vt->index != 0)
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return -EINVAL;
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vt->type = V4L2_TUNER_RADIO;
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2012-07-12 23:33:41 +08:00
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vt->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW;
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vt->rangelow = TUNER_FREQ_MIN_FM * 2 / 125;
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vt->rangehigh = TUNER_FREQ_MAX_FM * 2 / 125;
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2010-02-02 15:07:47 +08:00
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vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
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vt->audmode = V4L2_TUNER_MODE_STEREO;
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vt->signal = 0;
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vt->afc = 0;
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2012-07-12 23:33:41 +08:00
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strlcpy(vt->name, "Radio", sizeof(vt->name));
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2010-02-02 15:07:47 +08:00
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mutex_lock(&p->lock);
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ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO,
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&fm_stat, &status, sizeof(fm_stat));
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while (fm_stat.sig_lock_busy && count-- && !ret) {
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(HZ);
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ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO,
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&fm_stat, &status, sizeof(fm_stat));
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}
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mutex_unlock(&p->lock);
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if (ret || status) {
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vt->signal = 0;
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} else if ((fm_stat.sig_present || fm_stat.sig_locked)
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&& fm_stat.sig_strength == 0) {
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vt->signal = 0xffff;
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} else
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vt->signal = (fm_stat.sig_strength * 255 / 10) << 8;
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return 0;
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}
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2010-03-01 14:31:02 +08:00
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static int fm_get_freq(struct file *file, void *priv,
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struct v4l2_frequency *argp)
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2010-02-02 15:07:47 +08:00
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{
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2012-07-16 18:53:36 +08:00
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struct poseidon *p = video_drvdata(file);
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2010-02-02 15:07:47 +08:00
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2012-07-12 23:33:41 +08:00
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if (argp->tuner)
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return -EINVAL;
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2010-02-02 15:07:47 +08:00
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argp->frequency = p->radio_data.fm_freq;
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return 0;
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}
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static int set_frequency(struct poseidon *p, __u32 frequency)
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{
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__u32 freq ;
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2010-02-11 14:53:51 +08:00
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int ret, status;
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2010-02-02 15:07:47 +08:00
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mutex_lock(&p->lock);
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2010-02-11 14:53:51 +08:00
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ret = send_set_req(p, TUNER_AUD_ANA_STD,
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p->radio_data.pre_emphasis, &status);
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2010-02-02 15:07:47 +08:00
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2012-07-12 23:33:41 +08:00
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freq = (frequency * 125) / 2; /* Hz */
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freq = clamp(freq, TUNER_FREQ_MIN_FM, TUNER_FREQ_MAX_FM);
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2010-02-02 15:07:47 +08:00
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ret = send_set_req(p, TUNE_FREQ_SELECT, freq, &status);
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if (ret < 0)
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goto error ;
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ret = send_set_req(p, TAKE_REQUEST, 0, &status);
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(HZ/4);
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if (!p->radio_data.is_radio_streaming) {
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ret = send_set_req(p, TAKE_REQUEST, 0, &status);
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ret = send_set_req(p, PLAY_SERVICE,
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TLG_TUNE_PLAY_SVC_START, &status);
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p->radio_data.is_radio_streaming = 1;
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}
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2012-07-12 23:33:41 +08:00
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p->radio_data.fm_freq = freq * 2 / 125;
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2010-02-02 15:07:47 +08:00
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error:
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mutex_unlock(&p->lock);
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return ret;
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}
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2010-03-01 14:31:02 +08:00
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static int fm_set_freq(struct file *file, void *priv,
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2013-03-19 15:09:26 +08:00
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const struct v4l2_frequency *argp)
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2010-02-02 15:07:47 +08:00
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{
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2012-07-16 18:53:36 +08:00
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struct poseidon *p = video_drvdata(file);
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2010-02-02 15:07:47 +08:00
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2012-07-12 23:33:41 +08:00
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if (argp->tuner)
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return -EINVAL;
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p->file_for_stream = file;
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2010-02-02 15:07:47 +08:00
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#ifdef CONFIG_PM
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p->pm_suspend = pm_fm_suspend;
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p->pm_resume = pm_fm_resume;
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#endif
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return set_frequency(p, argp->frequency);
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}
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2012-07-12 23:56:47 +08:00
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static int tlg_fm_s_ctrl(struct v4l2_ctrl *ctrl)
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2010-02-02 15:07:47 +08:00
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{
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2012-07-12 23:56:47 +08:00
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struct poseidon *p = container_of(ctrl->handler, struct poseidon,
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radio_data.ctrl_handler);
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int pre_emphasis;
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u32 status;
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2010-02-11 14:53:51 +08:00
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2012-07-12 23:56:47 +08:00
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switch (ctrl->id) {
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case V4L2_CID_TUNE_PREEMPHASIS:
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pre_emphasis = preemphasis[ctrl->val];
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send_set_req(p, TUNER_AUD_ANA_STD, pre_emphasis, &status);
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p->radio_data.pre_emphasis = pre_emphasis;
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2010-02-11 14:53:51 +08:00
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return 0;
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}
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return -EINVAL;
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}
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2013-03-15 17:10:06 +08:00
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static int vidioc_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt)
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2010-02-02 15:07:47 +08:00
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{
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return vt->index > 0 ? -EINVAL : 0;
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}
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2012-07-12 23:56:47 +08:00
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static const struct v4l2_ctrl_ops tlg_fm_ctrl_ops = {
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.s_ctrl = tlg_fm_s_ctrl,
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};
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2010-02-02 15:07:47 +08:00
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static const struct v4l2_ioctl_ops poseidon_fm_ioctl_ops = {
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.vidioc_querycap = vidioc_querycap,
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.vidioc_s_tuner = vidioc_s_tuner,
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.vidioc_g_tuner = tlg_fm_vidioc_g_tuner,
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.vidioc_g_frequency = fm_get_freq,
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.vidioc_s_frequency = fm_set_freq,
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2012-07-16 18:53:36 +08:00
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.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
|
|
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
2010-02-02 15:07:47 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
static struct video_device poseidon_fm_template = {
|
|
|
|
.name = "Telegent-Radio",
|
|
|
|
.fops = &poseidon_fm_fops,
|
|
|
|
.minor = -1,
|
2012-07-12 23:39:58 +08:00
|
|
|
.release = video_device_release_empty,
|
2010-02-02 15:07:47 +08:00
|
|
|
.ioctl_ops = &poseidon_fm_ioctl_ops,
|
|
|
|
};
|
|
|
|
|
|
|
|
int poseidon_fm_init(struct poseidon *p)
|
|
|
|
{
|
2012-07-12 23:39:58 +08:00
|
|
|
struct video_device *vfd = &p->radio_data.fm_dev;
|
2012-07-12 23:56:47 +08:00
|
|
|
struct v4l2_ctrl_handler *hdl = &p->radio_data.ctrl_handler;
|
2010-02-02 15:07:47 +08:00
|
|
|
|
2012-07-12 23:39:58 +08:00
|
|
|
*vfd = poseidon_fm_template;
|
2010-02-02 15:07:47 +08:00
|
|
|
|
2012-07-12 23:33:41 +08:00
|
|
|
set_frequency(p, TUNER_FREQ_MIN_FM);
|
2012-07-12 23:56:47 +08:00
|
|
|
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;
|
|
|
|
video_set_drvdata(vfd, p);
|
2012-07-12 23:39:58 +08:00
|
|
|
return video_register_device(vfd, VFL_TYPE_RADIO, -1);
|
2010-02-02 15:07:47 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
int poseidon_fm_exit(struct poseidon *p)
|
|
|
|
{
|
2012-07-16 19:17:34 +08:00
|
|
|
video_unregister_device(&p->radio_data.fm_dev);
|
2012-07-12 23:56:47 +08:00
|
|
|
v4l2_ctrl_handler_free(&p->radio_data.ctrl_handler);
|
2010-02-02 15:07:47 +08:00
|
|
|
return 0;
|
|
|
|
}
|