V4L/DVB (6419): V4L2 port of tda7432 from V4L1 api
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab
parent
dc3d75da05
commit
7a00d45cf0
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@ -8,6 +8,7 @@
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* Muting and tone control by Jonathan Isom <jisom@ematic.com>
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*
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* Copyright (c) 2000 Eric Sandeen <eric_sandeen@bigfoot.com>
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* Copyright (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
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* This code is placed under the terms of the GNU General Public License
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* Based on tda9855.c by Steve VanDeBogart (vandebo@uclink.berkeley.edu)
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* Which was based on tda8425.c by Greg Alexander (c) 1998
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@ -276,7 +277,7 @@ static void do_tda7432_init(struct i2c_client *client)
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t->volume = 0x3b ; /* -27dB Volume */
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if (loudness) /* Turn loudness on? */
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t->volume |= TDA7432_LD_ON;
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t->muted = VIDEO_AUDIO_MUTE;
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t->muted = 1;
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t->treble = TDA7432_TREBLE_0DB; /* 0dB Treble */
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t->bass = TDA7432_BASS_0DB; /* 0dB Bass */
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t->lf = TDA7432_ATTEN_0DB; /* 0dB attenuation */
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@ -332,10 +333,132 @@ static int tda7432_detach(struct i2c_client *client)
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return 0;
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}
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static int tda7432_get_ctrl(struct i2c_client *client,
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struct v4l2_control *ctrl)
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{
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struct tda7432 *t = i2c_get_clientdata(client);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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ctrl->value=t->muted;
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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if (!maxvol){ /* max +20db */
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ctrl->value = ( 0x6f - (t->volume & 0x7F) ) * 630;
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} else { /* max 0db */
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ctrl->value = ( 0x6f - (t->volume & 0x7F) ) * 829;
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}
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return 0;
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case V4L2_CID_AUDIO_BALANCE:
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{
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if ( (t->lf) < (t->rf) )
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/* right is attenuated, balance shifted left */
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ctrl->value = (32768 - 1057*(t->rf));
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else
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/* left is attenuated, balance shifted right */
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ctrl->value = (32768 + 1057*(t->lf));
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return 0;
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}
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case V4L2_CID_AUDIO_BASS:
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{
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/* Bass/treble 4 bits each */
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int bass=t->bass;
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if(bass >= 0x8)
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bass = ~(bass - 0x8) & 0xf;
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ctrl->value = (bass << 12)+(bass << 8)+(bass << 4)+(bass);
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return 0;
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}
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case V4L2_CID_AUDIO_TREBLE:
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{
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int treble=t->treble;
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if(treble >= 0x8)
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treble = ~(treble - 0x8) & 0xf;
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ctrl->value = (treble << 12)+(treble << 8)+(treble << 4)+(treble);
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return 0;
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}
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}
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return -EINVAL;
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}
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static int tda7432_set_ctrl(struct i2c_client *client,
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struct v4l2_control *ctrl)
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{
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struct tda7432 *t = i2c_get_clientdata(client);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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t->muted=ctrl->value;
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break;
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case V4L2_CID_AUDIO_VOLUME:
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if(!maxvol){ /* max +20db */
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t->volume = 0x6f - ((ctrl->value)/630);
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} else { /* max 0db */
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t->volume = 0x6f - ((ctrl->value)/829);
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}
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if (loudness) /* Turn on the loudness bit */
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t->volume |= TDA7432_LD_ON;
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tda7432_write(client,TDA7432_VL, t->volume);
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return 0;
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case V4L2_CID_AUDIO_BALANCE:
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if (ctrl->value < 32768) {
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/* shifted to left, attenuate right */
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t->rr = (32768 - ctrl->value)/1057;
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t->rf = t->rr;
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t->lr = TDA7432_ATTEN_0DB;
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t->lf = TDA7432_ATTEN_0DB;
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} else if(ctrl->value > 32769) {
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/* shifted to right, attenuate left */
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t->lf = (ctrl->value - 32768)/1057;
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t->lr = t->lf;
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t->rr = TDA7432_ATTEN_0DB;
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t->rf = TDA7432_ATTEN_0DB;
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} else {
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/* centered */
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t->rr = TDA7432_ATTEN_0DB;
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t->rf = TDA7432_ATTEN_0DB;
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t->lf = TDA7432_ATTEN_0DB;
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t->lr = TDA7432_ATTEN_0DB;
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}
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break;
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case V4L2_CID_AUDIO_BASS:
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t->bass = ctrl->value >> 12;
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if(t->bass>= 0x8)
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t->bass = (~t->bass & 0xf) + 0x8 ;
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tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
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return 0;
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case V4L2_CID_AUDIO_TREBLE:
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t->treble= ctrl->value >> 12;
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if(t->treble>= 0x8)
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t->treble = (~t->treble & 0xf) + 0x8 ;
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tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
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return 0;
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default:
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return -EINVAL;
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}
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/* Used for both mute and balance changes */
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if (t->muted)
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{
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/* Mute & update balance*/
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tda7432_write(client,TDA7432_LF, t->lf | TDA7432_MUTE);
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tda7432_write(client,TDA7432_LR, t->lr | TDA7432_MUTE);
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tda7432_write(client,TDA7432_RF, t->rf | TDA7432_MUTE);
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tda7432_write(client,TDA7432_RR, t->rr | TDA7432_MUTE);
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} else {
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tda7432_write(client,TDA7432_LF, t->lf);
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tda7432_write(client,TDA7432_LR, t->lr);
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tda7432_write(client,TDA7432_RF, t->rf);
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tda7432_write(client,TDA7432_RR, t->rr);
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}
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return 0;
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}
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static int tda7432_command(struct i2c_client *client,
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unsigned int cmd, void *arg)
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{
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struct tda7432 *t = i2c_get_clientdata(client);
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v4l_dbg(2, debug,client,"In tda7432_command\n");
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if (debug>1)
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v4l_i2c_print_ioctl(client,cmd);
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@ -344,139 +467,26 @@ static int tda7432_command(struct i2c_client *client,
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/* --- v4l ioctls --- */
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/* take care: bttv does userspace copying, we'll get a
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kernel pointer here... */
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/* Query card - scale from TDA7432 settings to V4L settings */
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case VIDIOCGAUDIO:
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case VIDIOC_QUERYCTRL:
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{
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struct video_audio *va = arg;
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struct v4l2_queryctrl *qc = arg;
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va->flags |= VIDEO_AUDIO_VOLUME |
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VIDEO_AUDIO_BASS |
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VIDEO_AUDIO_TREBLE |
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VIDEO_AUDIO_MUTABLE;
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if (t->muted)
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va->flags |= VIDEO_AUDIO_MUTE;
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va->mode |= VIDEO_SOUND_STEREO;
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/* Master volume control
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* V4L volume is min 0, max 65535
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* TDA7432 Volume:
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* Min (-79dB) is 0x6f
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* Max (+20dB) is 0x07 (630)
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* Max (0dB) is 0x20 (829)
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* (Mask out bit 7 of vol - it's for the loudness setting)
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*/
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if (!maxvol){ /* max +20db */
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va->volume = ( 0x6f - (t->volume & 0x7F) ) * 630;
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} else { /* max 0db */
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va->volume = ( 0x6f - (t->volume & 0x7F) ) * 829;
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switch (qc->id) {
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case V4L2_CID_AUDIO_MUTE:
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case V4L2_CID_AUDIO_VOLUME:
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case V4L2_CID_AUDIO_BALANCE:
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case V4L2_CID_AUDIO_BASS:
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case V4L2_CID_AUDIO_TREBLE:
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default:
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return -EINVAL;
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}
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/* Balance depends on L,R attenuation
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* V4L balance is 0 to 65535, middle is 32768
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* TDA7432 attenuation: min (0dB) is 0, max (-37.5dB) is 0x1f
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* to scale up to V4L numbers, mult by 1057
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* attenuation exists for lf, lr, rf, rr
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* we use only lf and rf (front channels)
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*/
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if ( (t->lf) < (t->rf) )
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/* right is attenuated, balance shifted left */
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va->balance = (32768 - 1057*(t->rf));
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else
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/* left is attenuated, balance shifted right */
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va->balance = (32768 + 1057*(t->lf));
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/* Bass/treble 4 bits each */
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va->bass=t->bass;
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if(va->bass >= 0x8)
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va->bass = ~(va->bass - 0x8) & 0xf;
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va->bass = (va->bass << 12)+(va->bass << 8)+(va->bass << 4)+(va->bass);
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va->treble=t->treble;
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if(va->treble >= 0x8)
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va->treble = ~(va->treble - 0x8) & 0xf;
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va->treble = (va->treble << 12)+(va->treble << 8)+(va->treble << 4)+(va->treble);
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break; /* VIDIOCGAUDIO case */
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return v4l2_ctrl_query_fill_std(qc);
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}
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case VIDIOC_S_CTRL:
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return tda7432_set_ctrl(client, arg);
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/* Set card - scale from V4L settings to TDA7432 settings */
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case VIDIOCSAUDIO:
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{
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struct video_audio *va = arg;
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if(va->flags & VIDEO_AUDIO_VOLUME){
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if(!maxvol){ /* max +20db */
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t->volume = 0x6f - ((va->volume)/630);
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} else { /* max 0db */
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t->volume = 0x6f - ((va->volume)/829);
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}
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if (loudness) /* Turn on the loudness bit */
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t->volume |= TDA7432_LD_ON;
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tda7432_write(client,TDA7432_VL, t->volume);
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}
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if(va->flags & VIDEO_AUDIO_BASS)
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{
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t->bass = va->bass >> 12;
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if(t->bass>= 0x8)
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t->bass = (~t->bass & 0xf) + 0x8 ;
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}
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if(va->flags & VIDEO_AUDIO_TREBLE)
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{
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t->treble= va->treble >> 12;
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if(t->treble>= 0x8)
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t->treble = (~t->treble & 0xf) + 0x8 ;
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}
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if(va->flags & (VIDEO_AUDIO_TREBLE| VIDEO_AUDIO_BASS))
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tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
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if(va->flags & VIDEO_AUDIO_BALANCE) {
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if (va->balance < 32768)
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{
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/* shifted to left, attenuate right */
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t->rr = (32768 - va->balance)/1057;
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t->rf = t->rr;
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t->lr = TDA7432_ATTEN_0DB;
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t->lf = TDA7432_ATTEN_0DB;
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}
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else if(va->balance > 32769)
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{
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/* shifted to right, attenuate left */
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t->lf = (va->balance - 32768)/1057;
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t->lr = t->lf;
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t->rr = TDA7432_ATTEN_0DB;
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t->rf = TDA7432_ATTEN_0DB;
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}
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else
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{
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/* centered */
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t->rr = TDA7432_ATTEN_0DB;
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t->rf = TDA7432_ATTEN_0DB;
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t->lf = TDA7432_ATTEN_0DB;
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t->lr = TDA7432_ATTEN_0DB;
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}
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}
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t->muted=(va->flags & VIDEO_AUDIO_MUTE);
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if (t->muted)
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{
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/* Mute & update balance*/
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tda7432_write(client,TDA7432_LF, t->lf | TDA7432_MUTE);
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tda7432_write(client,TDA7432_LR, t->lr | TDA7432_MUTE);
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tda7432_write(client,TDA7432_RF, t->rf | TDA7432_MUTE);
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tda7432_write(client,TDA7432_RR, t->rr | TDA7432_MUTE);
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} else {
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tda7432_write(client,TDA7432_LF, t->lf);
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tda7432_write(client,TDA7432_LR, t->lr);
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tda7432_write(client,TDA7432_RF, t->rf);
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tda7432_write(client,TDA7432_RR, t->rr);
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}
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break;
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} /* end of VIDEOCSAUDIO case */
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case VIDIOC_G_CTRL:
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return tda7432_get_ctrl(client, arg);
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} /* end of (cmd) switch */
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