From patchwork Fri Nov 20 03:24:53 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Shijie X-Patchwork-Id: 2135 Return-path: Envelope-to: mchehab@infradead.org Delivery-date: Fri, 20 Nov 2009 03:25:40 +0000 Received: from bombadil.infradead.org [18.85.46.34] by pedra.chehab.org with IMAP (fetchmail-6.3.6) for (single-drop); Fri, 20 Nov 2009 09:02:54 -0200 (BRST) Received: from vger.kernel.org ([209.132.176.167]) by bombadil.infradead.org with esmtp (Exim 4.69 #1 (Red Hat Linux)) id 1NBK7w-00067N-AQ; Fri, 20 Nov 2009 03:25:40 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758273AbZKTDZb (ORCPT + 1 other); Thu, 19 Nov 2009 22:25:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758269AbZKTDZa (ORCPT ); Thu, 19 Nov 2009 22:25:30 -0500 Received: from mail-yw0-f202.google.com ([209.85.211.202]:58615 "EHLO mail-yw0-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758266AbZKTDZ1 (ORCPT ); Thu, 19 Nov 2009 22:25:27 -0500 Received: by mail-yw0-f202.google.com with SMTP id 40so1937121ywh.33 for ; Thu, 19 Nov 2009 19:25:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:from:to:cc:subject:date :message-id:x-mailer:in-reply-to:references; bh=smKSsV6V9p1G5H0iEwrmvPZHMik0ZQaXYDOk/ZDMS7M=; b=u15SU82vO5q0Dy2f/BEVsswy4T9dVL2PuoUBPD7MDTEv7uAB+k0wfN4ZY1uqciTe3X GfNqOlieGIklcIRJAdGWG3r1kzK/8pTn6yfDcIwb7cBrRA3f8c6O8eLUwqP8jwHxzkIO TrBXlJiQkJuxevABa884isMxYGoUGVE5Aplmo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=g0F1MOUQ6JrxePwhSiGJhU8CxkNARvybhJ2YuravKzi2eA6f4ItzO12ar5E+1aQnw5 KSODoFcqq5c0EiuKry9NGbToQl9RnbNuHg80yDXEi3xnIjClSac/VNlmX3Mayd74Ia3U 95Ue/zuMlt2ejLsnsmfwwGCqEry0ogfNq33uE= Received: by 10.150.240.21 with SMTP id n21mr1608894ybh.165.1258687533694; Thu, 19 Nov 2009 19:25:33 -0800 (PST) Received: from localhost.localdomain ([211.144.218.162]) by mx.google.com with ESMTPS id 9sm192108ywe.26.2009.11.19.19.25.29 (version=SSLv3 cipher=RC4-MD5); Thu, 19 Nov 2009 19:25:33 -0800 (PST) From: Huang Shijie To: mchehab@redhat.com Cc: linux-media@vger.kernel.org, Huang Shijie Subject: [PATCH 11/11] add FM support for tlg2300 Date: Fri, 20 Nov 2009 11:24:53 +0800 Message-Id: <1258687493-4012-12-git-send-email-shijie8@gmail.com> X-Mailer: git-send-email 1.6.0.6 In-Reply-To: <1258687493-4012-11-git-send-email-shijie8@gmail.com> References: <1258687493-4012-1-git-send-email-shijie8@gmail.com> <1258687493-4012-2-git-send-email-shijie8@gmail.com> <1258687493-4012-3-git-send-email-shijie8@gmail.com> <1258687493-4012-4-git-send-email-shijie8@gmail.com> <1258687493-4012-5-git-send-email-shijie8@gmail.com> <1258687493-4012-6-git-send-email-shijie8@gmail.com> <1258687493-4012-7-git-send-email-shijie8@gmail.com> <1258687493-4012-8-git-send-email-shijie8@gmail.com> <1258687493-4012-9-git-send-email-shijie8@gmail.com> <1258687493-4012-10-git-send-email-shijie8@gmail.com> <1258687493-4012-11-git-send-email-shijie8@gmail.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This module contains codes for radio. The radio use the ALSA audio as input. The mplayer should be compiled with --enable-radio and --enable-radio-capture. The command runs as this(assume the alsa audio registers to card 1): #mplayer radio://103.7/capture/ -radio adevice=hw=1,0:arate=48000 -rawaudio rate=48000:channels=2 Signed-off-by: Huang Shijie --- drivers/media/video/tlg2300/pd-radio.c | 383 ++++++++++++++++++++++++++++++++ 1 files changed, 383 insertions(+), 0 deletions(-) create mode 100644 drivers/media/video/tlg2300/pd-radio.c diff --git a/drivers/media/video/tlg2300/pd-radio.c b/drivers/media/video/tlg2300/pd-radio.c new file mode 100644 index 0000000..2576f3a --- /dev/null +++ b/drivers/media/video/tlg2300/pd-radio.c @@ -0,0 +1,383 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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); +static int __poseidon_fm_close(struct file *filp); + +#define TUNER_FREQ_MIN_FM 76000000 +#define TUNER_FREQ_MAX_FM 108000000 + +static int poseidon_check_mode_radio(struct poseidon *p) +{ + int ret, radiomode; + 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); + radiomode = get_audio_std(TLG_MODE_FM_RADIO, p->country_code); + ret = send_set_req(p, TUNER_AUD_ANA_STD, radiomode, &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; +} + +static int pm_fm_suspend(struct poseidon *p) +{ + pm_alsa_suspend(p); + usb_set_interface(p->udev, 0, 0); + mdelay(2000); + return 0; +} + +static int pm_fm_resume(struct poseidon *p) +{ + if (in_hibernation(p)) { + __poseidon_fm_close(p->file_for_stream); + return 0; + } + poseidon_check_mode_radio(p); + set_frequency(p, p->radio_data.fm_freq); + pm_alsa_resume(p); + return 0; +} + +static int poseidon_fm_open(struct file *filp) +{ + struct video_device *vfd = video_devdata(filp); + struct poseidon *p = video_get_drvdata(vfd); + int ret = 0; + + if (!p) + return -1; + + 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; + } + + usb_autopm_get_interface(p->interface); + if (0 == p->state) { + p->country_code = country_code; + set_debug_mode(vfd, debug_mode); + + ret = poseidon_check_mode_radio(p); + if (ret < 0) + goto out; + 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 radio_data *fm = &p->radio_data; + uint32_t status; + + mutex_lock(&p->lock); + fm->users--; + if (0 == fm->users) + 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); + } + mutex_unlock(&p->lock); + + kref_put(&p->kref, poseidon_delete); + filp->private_data = NULL; + return 0; +} + +static int poseidon_fm_close(struct file *filp) +{ + struct poseidon *p = filp->private_data; + + __poseidon_fm_close(filp); + usb_autopm_put_interface(p->interface); + return 0; +} + +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *v) +{ + strlcpy(v->driver, "radio-tele", sizeof(v->driver)); + strlcpy(v->card, "telegent Radio", sizeof(v->card)); + sprintf(v->bus_info, "USB"); + v->version = 0; + v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; + return 0; +} + +static long pd_radio_ioctls(struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct poseidon *p = file->private_data; + unsigned long ret; + int country_code; + + if (in_hibernation(p)) + return -1; + + if (cmd == PD_COUNTRY_CODE) { + ret = copy_from_user(&country_code, (void __user *)arg, + sizeof(country_code)); + if (0 == ret) { + p->country_code = country_code; + return 0; + } else + return -EAGAIN; + } + return video_ioctl2(file, cmd, arg); +} + +static const struct v4l2_file_operations poseidon_fm_fops = { + .owner = THIS_MODULE, + .open = poseidon_fm_open, + .release = poseidon_fm_close, + .ioctl = pd_radio_ioctls, +}; + +int tlg_fm_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt) +{ + 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->rxsubchans = V4L2_TUNER_SUB_STEREO; + vt->audmode = V4L2_TUNER_MODE_STEREO; + vt->signal = 0; + vt->afc = 0; + + 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; +} + +int fm_get_freq(struct file *file, void *priv, struct v4l2_frequency *argp) +{ + struct poseidon *p = file->private_data; + + argp->frequency = p->radio_data.fm_freq; + return 0; +} + +static int set_frequency(struct poseidon *p, __u32 frequency) +{ + __u32 freq ; + int ret, status, radiomode; + + mutex_lock(&p->lock); + + radiomode = get_audio_std(TLG_MODE_FM_RADIO, p->country_code); + /*NTSC 8,PAL 2 */ + ret = send_set_req(p, TUNER_AUD_ANA_STD, radiomode, &status); + + freq = (frequency * 125) * 500 / 1000;/* kHZ */ + if (freq < TUNER_FREQ_MIN_FM/1000 || freq > TUNER_FREQ_MAX_FM/1000) { + ret = -EINVAL; + goto error; + } + + 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 = frequency; +error: + mutex_unlock(&p->lock); + return ret; +} + +int fm_set_freq(struct file *file, void *priv, struct v4l2_frequency *argp) +{ + struct poseidon *p = file->private_data; + + p->file_for_stream = file; +#ifdef CONFIG_PM + p->inode = file->f_dentry->d_inode; + p->pm_open = poseidon_fm_open; + p->pm_suspend = pm_fm_suspend; + p->pm_resume = pm_fm_resume; +#endif + return set_frequency(p, argp->frequency); +} + +int tlg_fm_vidioc_g_ctrl(struct file *file, void *priv, + struct v4l2_control *arg) +{ + return 0; +} + +int tlg_fm_vidioc_exts_ctrl(struct file *file, void *fh, + struct v4l2_ext_controls *a) +{ + return 0; +} + +int tlg_fm_vidioc_s_ctrl(struct file *file, void *priv, + struct v4l2_control *arg) +{ + return 0; +} + +int tlg_fm_vidioc_queryctrl(struct file *file, void *priv, + struct v4l2_queryctrl *arg) +{ + arg->minimum = 0; + arg->maximum = 65535; + return 0; +} + +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, 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_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_g_ctrl = tlg_fm_vidioc_g_ctrl, + .vidioc_s_ctrl = tlg_fm_vidioc_s_ctrl, + .vidioc_s_ext_ctrls = tlg_fm_vidioc_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, +}; + +static struct video_device poseidon_fm_template = { + .name = "telegent-FM", + .fops = &poseidon_fm_fops, + .minor = -1, + .release = video_device_release, + .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; + } + p->radio_data.fm_dev = fm_dev; + return 0; +} + +int poseidon_fm_exit(struct poseidon *p) +{ + if (p->radio_data.fm_dev) { + video_unregister_device(p->radio_data.fm_dev); + p->radio_data.fm_dev = NULL; + } + return 0; +}