media: ivtv: remove ivtv-alsa-mixer
ivtv-alsa-mixer functions was introduced in commit 269c11fbac
("[media] ivtv, ivtv-alsa: Add initial ivtv-alsa interface driver for ivtv")
But according to commit message, ivtv-alsa-mixer.c was already dead code.
5 years after, we should remove it.
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: removed forgotten ivtv-alsa-mixer.h include]
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Corentin Labbe
Mauro Carvalho Chehab
Родитель
26a6181f34
Коммит
47b934875b
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@ -20,7 +20,6 @@
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#include "ivtv-driver.h"
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#include "ivtv-version.h"
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#include "ivtv-alsa.h"
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#include "ivtv-alsa-mixer.h"
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#include "ivtv-alsa-pcm.h"
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#include <sound/core.h>
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@ -160,15 +159,7 @@ static int snd_ivtv_init(struct v4l2_device *v4l2_dev)
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/* (4) Set the driver ID and name strings */
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snd_ivtv_card_set_names(itvsc);
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/* (5) Create other components: mixer, PCM, & proc files */
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#if 0
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ret = snd_ivtv_mixer_create(itvsc);
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if (ret) {
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IVTV_ALSA_WARN("%s: snd_ivtv_mixer_create() failed with err %d: proceeding anyway\n",
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__func__, ret);
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}
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#endif
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/* (5) Create other components: PCM, & proc files */
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ret = snd_ivtv_pcm_create(itvsc);
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if (ret) {
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IVTV_ALSA_ERR("%s: snd_ivtv_pcm_create() failed with err %d\n",
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@ -1,165 +0,0 @@
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/*
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* ALSA mixer controls for the
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* ALSA interface to ivtv PCM capture streams
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*
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* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "ivtv-alsa.h"
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#include "ivtv-alsa-mixer.h"
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#include "ivtv-driver.h"
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#include <linux/videodev2.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include <sound/tlv.h>
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/*
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* Note the cx25840-core volume scale is funny, due to the alignment of the
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* scale with another chip's range:
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*
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* v4l2_control value /512 indicated dB actual dB reg 0x8d4
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* 0x0000 - 0x01ff 0 -119 -96 228
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* 0x0200 - 0x02ff 1 -118 -96 228
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* ...
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* 0x2c00 - 0x2dff 22 -97 -96 228
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* 0x2e00 - 0x2fff 23 -96 -96 228
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* 0x3000 - 0x31ff 24 -95 -95 226
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* ...
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* 0xee00 - 0xefff 119 0 0 36
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* ...
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* 0xfe00 - 0xffff 127 +8 +8 20
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*/
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static inline int dB_to_cx25840_vol(int dB)
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{
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if (dB < -96)
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dB = -96;
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else if (dB > 8)
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dB = 8;
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return (dB + 119) << 9;
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}
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static inline int cx25840_vol_to_dB(int v)
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{
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if (v < (23 << 9))
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v = (23 << 9);
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else if (v > (127 << 9))
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v = (127 << 9);
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return (v >> 9) - 119;
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}
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static int snd_ivtv_mixer_tv_vol_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = 1;
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/* We're already translating values, just keep this control in dB */
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uinfo->value.integer.min = -96;
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uinfo->value.integer.max = 8;
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uinfo->value.integer.step = 1;
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return 0;
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}
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static int snd_ivtv_mixer_tv_vol_get(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *uctl)
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{
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struct snd_ivtv_card *itvsc = snd_kcontrol_chip(kctl);
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struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
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struct v4l2_control vctrl;
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int ret;
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vctrl.id = V4L2_CID_AUDIO_VOLUME;
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vctrl.value = dB_to_cx25840_vol(uctl->value.integer.value[0]);
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snd_ivtv_lock(itvsc);
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ret = v4l2_g_ctrl(itv->sd_audio->ctrl_handler, &vctrl);
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snd_ivtv_unlock(itvsc);
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if (!ret)
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uctl->value.integer.value[0] = cx25840_vol_to_dB(vctrl.value);
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return ret;
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}
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static int snd_ivtv_mixer_tv_vol_put(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *uctl)
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{
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struct snd_ivtv_card *itvsc = snd_kcontrol_chip(kctl);
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struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
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struct v4l2_control vctrl;
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int ret;
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vctrl.id = V4L2_CID_AUDIO_VOLUME;
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vctrl.value = dB_to_cx25840_vol(uctl->value.integer.value[0]);
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snd_ivtv_lock(itvsc);
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/* Fetch current state */
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ret = v4l2_g_ctrl(itv->sd_audio->ctrl_handler, &vctrl);
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if (ret ||
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(cx25840_vol_to_dB(vctrl.value) != uctl->value.integer.value[0])) {
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/* Set, if needed */
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vctrl.value = dB_to_cx25840_vol(uctl->value.integer.value[0]);
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ret = v4l2_s_ctrl(itv->sd_audio->ctrl_handler, &vctrl);
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if (!ret)
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ret = 1; /* Indicate control was changed w/o error */
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}
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snd_ivtv_unlock(itvsc);
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return ret;
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}
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/* This is a bit of overkill, the slider is already in dB internally */
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static DECLARE_TLV_DB_SCALE(snd_ivtv_mixer_tv_vol_db_scale, -9600, 100, 0);
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static struct snd_kcontrol_new snd_ivtv_mixer_tv_vol __initdata = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "Analog TV Capture Volume",
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
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SNDRV_CTL_ELEM_ACCESS_TLV_READ,
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.info = snd_ivtv_mixer_tv_volume_info,
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.get = snd_ivtv_mixer_tv_volume_get,
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.put = snd_ivtv_mixer_tv_volume_put,
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.tlv.p = snd_ivtv_mixer_tv_vol_db_scale
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};
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/* FIXME - add mute switch and balance, bass, treble sliders:
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V4L2_CID_AUDIO_MUTE
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V4L2_CID_AUDIO_BALANCE
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V4L2_CID_AUDIO_BASS
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V4L2_CID_AUDIO_TREBLE
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*/
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/* FIXME - add stereo, lang1, lang2, mono menu */
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/* FIXME - add I2S volume */
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int __init snd_ivtv_mixer_create(struct snd_ivtv_card *itvsc)
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{
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struct v4l2_device *v4l2_dev = itvsc->v4l2_dev;
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struct snd_card *sc = itvsc->sc;
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int ret;
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strlcpy(sc->mixername, "CX2341[56] Mixer", sizeof(sc->mixername));
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ret = snd_ctl_add(sc, snd_ctl_new1(&snd_ivtv_mixer_tv_vol, itvsc));
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if (ret) {
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IVTV_ALSA_WARN("%s: failed to add %s control, err %d\n",
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__func__, snd_ivtv_mixer_tv_vol.name, ret);
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}
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return ret;
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}
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@ -1,18 +0,0 @@
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/*
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* ALSA mixer controls for the
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* ALSA interface to ivtv PCM capture streams
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*
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* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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int __init snd_ivtv_mixer_create(struct snd_ivtv_card *itvsc);
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