* Muting and tone control by Jonathan Isom <jisom@ematic.com>
*
* Copyright (c) 2000 Eric Sandeen <eric_sandeen@bigfoot.com>
+ * Copyright (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
* This code is placed under the terms of the GNU General Public License
* Based on tda9855.c by Steve VanDeBogart (vandebo@uclink.berkeley.edu)
* Which was based on tda8425.c by Greg Alexander (c) 1998
t->volume = 0x3b ; /* -27dB Volume */
if (loudness) /* Turn loudness on? */
t->volume |= TDA7432_LD_ON;
- t->muted = VIDEO_AUDIO_MUTE;
+ t->muted = 1;
t->treble = TDA7432_TREBLE_0DB; /* 0dB Treble */
t->bass = TDA7432_BASS_0DB; /* 0dB Bass */
t->lf = TDA7432_ATTEN_0DB; /* 0dB attenuation */
return 0;
}
-static int tda7432_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
+static int tda7432_get_ctrl(struct i2c_client *client,
+ struct v4l2_control *ctrl)
{
struct tda7432 *t = i2c_get_clientdata(client);
- v4l_dbg(2, debug,client,"In tda7432_command\n");
- if (debug>1)
- v4l_i2c_print_ioctl(client,cmd);
- switch (cmd) {
- /* --- v4l ioctls --- */
- /* take care: bttv does userspace copying, we'll get a
- kernel pointer here... */
-
- /* Query card - scale from TDA7432 settings to V4L settings */
- case VIDIOCGAUDIO:
- {
- struct video_audio *va = arg;
-
- va->flags |= VIDEO_AUDIO_VOLUME |
- VIDEO_AUDIO_BASS |
- VIDEO_AUDIO_TREBLE |
- VIDEO_AUDIO_MUTABLE;
- if (t->muted)
- va->flags |= VIDEO_AUDIO_MUTE;
- va->mode |= VIDEO_SOUND_STEREO;
- /* Master volume control
- * V4L volume is min 0, max 65535
- * TDA7432 Volume:
- * Min (-79dB) is 0x6f
- * Max (+20dB) is 0x07 (630)
- * Max (0dB) is 0x20 (829)
- * (Mask out bit 7 of vol - it's for the loudness setting)
- */
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ ctrl->value=t->muted;
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
if (!maxvol){ /* max +20db */
- va->volume = ( 0x6f - (t->volume & 0x7F) ) * 630;
+ ctrl->value = ( 0x6f - (t->volume & 0x7F) ) * 630;
} else { /* max 0db */
- va->volume = ( 0x6f - (t->volume & 0x7F) ) * 829;
+ ctrl->value = ( 0x6f - (t->volume & 0x7F) ) * 829;
}
-
- /* Balance depends on L,R attenuation
- * V4L balance is 0 to 65535, middle is 32768
- * TDA7432 attenuation: min (0dB) is 0, max (-37.5dB) is 0x1f
- * to scale up to V4L numbers, mult by 1057
- * attenuation exists for lf, lr, rf, rr
- * we use only lf and rf (front channels)
- */
-
+ return 0;
+ case V4L2_CID_AUDIO_BALANCE:
+ {
if ( (t->lf) < (t->rf) )
/* right is attenuated, balance shifted left */
- va->balance = (32768 - 1057*(t->rf));
+ ctrl->value = (32768 - 1057*(t->rf));
else
/* left is attenuated, balance shifted right */
- va->balance = (32768 + 1057*(t->lf));
-
+ ctrl->value = (32768 + 1057*(t->lf));
+ return 0;
+ }
+ case V4L2_CID_AUDIO_BASS:
+ {
/* Bass/treble 4 bits each */
- va->bass=t->bass;
- if(va->bass >= 0x8)
- va->bass = ~(va->bass - 0x8) & 0xf;
- va->bass = (va->bass << 12)+(va->bass << 8)+(va->bass << 4)+(va->bass);
- va->treble=t->treble;
- if(va->treble >= 0x8)
- va->treble = ~(va->treble - 0x8) & 0xf;
- va->treble = (va->treble << 12)+(va->treble << 8)+(va->treble << 4)+(va->treble);
-
- break; /* VIDIOCGAUDIO case */
+ int bass=t->bass;
+ if(bass >= 0x8)
+ bass = ~(bass - 0x8) & 0xf;
+ ctrl->value = (bass << 12)+(bass << 8)+(bass << 4)+(bass);
+ return 0;
}
-
- /* Set card - scale from V4L settings to TDA7432 settings */
- case VIDIOCSAUDIO:
+ case V4L2_CID_AUDIO_TREBLE:
{
- struct video_audio *va = arg;
+ int treble=t->treble;
+ if(treble >= 0x8)
+ treble = ~(treble - 0x8) & 0xf;
+ ctrl->value = (treble << 12)+(treble << 8)+(treble << 4)+(treble);
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
- if(va->flags & VIDEO_AUDIO_VOLUME){
- if(!maxvol){ /* max +20db */
- t->volume = 0x6f - ((va->volume)/630);
- } else { /* max 0db */
- t->volume = 0x6f - ((va->volume)/829);
- }
+static int tda7432_set_ctrl(struct i2c_client *client,
+ struct v4l2_control *ctrl)
+{
+ struct tda7432 *t = i2c_get_clientdata(client);
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ t->muted=ctrl->value;
+ break;
+ case V4L2_CID_AUDIO_VOLUME:
+ if(!maxvol){ /* max +20db */
+ t->volume = 0x6f - ((ctrl->value)/630);
+ } else { /* max 0db */
+ t->volume = 0x6f - ((ctrl->value)/829);
+ }
if (loudness) /* Turn on the loudness bit */
t->volume |= TDA7432_LD_ON;
- tda7432_write(client,TDA7432_VL, t->volume);
- }
-
- if(va->flags & VIDEO_AUDIO_BASS)
- {
- t->bass = va->bass >> 12;
- if(t->bass>= 0x8)
- t->bass = (~t->bass & 0xf) + 0x8 ;
- }
- if(va->flags & VIDEO_AUDIO_TREBLE)
- {
- t->treble= va->treble >> 12;
- if(t->treble>= 0x8)
- t->treble = (~t->treble & 0xf) + 0x8 ;
- }
- if(va->flags & (VIDEO_AUDIO_TREBLE| VIDEO_AUDIO_BASS))
- tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
-
- if(va->flags & VIDEO_AUDIO_BALANCE) {
- if (va->balance < 32768)
- {
+ tda7432_write(client,TDA7432_VL, t->volume);
+ return 0;
+ case V4L2_CID_AUDIO_BALANCE:
+ if (ctrl->value < 32768) {
/* shifted to left, attenuate right */
- t->rr = (32768 - va->balance)/1057;
+ t->rr = (32768 - ctrl->value)/1057;
t->rf = t->rr;
t->lr = TDA7432_ATTEN_0DB;
t->lf = TDA7432_ATTEN_0DB;
- }
- else if(va->balance > 32769)
- {
+ } else if(ctrl->value > 32769) {
/* shifted to right, attenuate left */
- t->lf = (va->balance - 32768)/1057;
+ t->lf = (ctrl->value - 32768)/1057;
t->lr = t->lf;
t->rr = TDA7432_ATTEN_0DB;
t->rf = TDA7432_ATTEN_0DB;
- }
- else
- {
+ } else {
/* centered */
t->rr = TDA7432_ATTEN_0DB;
t->rf = TDA7432_ATTEN_0DB;
t->lf = TDA7432_ATTEN_0DB;
t->lr = TDA7432_ATTEN_0DB;
}
- }
+ break;
+ case V4L2_CID_AUDIO_BASS:
+ t->bass = ctrl->value >> 12;
+ if(t->bass>= 0x8)
+ t->bass = (~t->bass & 0xf) + 0x8 ;
+
+ tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
+ return 0;
+ case V4L2_CID_AUDIO_TREBLE:
+ t->treble= ctrl->value >> 12;
+ if(t->treble>= 0x8)
+ t->treble = (~t->treble & 0xf) + 0x8 ;
+
+ tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
+ return 0;
+ default:
+ return -EINVAL;
+ }
- t->muted=(va->flags & VIDEO_AUDIO_MUTE);
- if (t->muted)
- {
- /* Mute & update balance*/
- tda7432_write(client,TDA7432_LF, t->lf | TDA7432_MUTE);
- tda7432_write(client,TDA7432_LR, t->lr | TDA7432_MUTE);
- tda7432_write(client,TDA7432_RF, t->rf | TDA7432_MUTE);
- tda7432_write(client,TDA7432_RR, t->rr | TDA7432_MUTE);
- } else {
- tda7432_write(client,TDA7432_LF, t->lf);
- tda7432_write(client,TDA7432_LR, t->lr);
- tda7432_write(client,TDA7432_RF, t->rf);
- tda7432_write(client,TDA7432_RR, t->rr);
- }
+ /* Used for both mute and balance changes */
+ if (t->muted)
+ {
+ /* Mute & update balance*/
+ tda7432_write(client,TDA7432_LF, t->lf | TDA7432_MUTE);
+ tda7432_write(client,TDA7432_LR, t->lr | TDA7432_MUTE);
+ tda7432_write(client,TDA7432_RF, t->rf | TDA7432_MUTE);
+ tda7432_write(client,TDA7432_RR, t->rr | TDA7432_MUTE);
+ } else {
+ tda7432_write(client,TDA7432_LF, t->lf);
+ tda7432_write(client,TDA7432_LR, t->lr);
+ tda7432_write(client,TDA7432_RF, t->rf);
+ tda7432_write(client,TDA7432_RR, t->rr);
+ }
+ return 0;
+}
- break;
+static int tda7432_command(struct i2c_client *client,
+ unsigned int cmd, void *arg)
+{
+ v4l_dbg(2, debug,client,"In tda7432_command\n");
+ if (debug>1)
+ v4l_i2c_print_ioctl(client,cmd);
+
+ switch (cmd) {
+ /* --- v4l ioctls --- */
+ /* take care: bttv does userspace copying, we'll get a
+ kernel pointer here... */
+ case VIDIOC_QUERYCTRL:
+ {
+ struct v4l2_queryctrl *qc = arg;
+
+ switch (qc->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_BALANCE:
+ case V4L2_CID_AUDIO_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
+ default:
+ return -EINVAL;
+ }
+ return v4l2_ctrl_query_fill_std(qc);
+ }
+ case VIDIOC_S_CTRL:
+ return tda7432_set_ctrl(client, arg);
- } /* end of VIDEOCSAUDIO case */
+ case VIDIOC_G_CTRL:
+ return tda7432_get_ctrl(client, arg);
} /* end of (cmd) switch */
projects / linux-2.6 / commitdiff