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path: root/drivers/media/i2c/tda7432.c
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Diffstat (limited to 'drivers/media/i2c/tda7432.c')
-rw-r--r--drivers/media/i2c/tda7432.c276
1 files changed, 110 insertions, 166 deletions
diff --git a/drivers/media/i2c/tda7432.c b/drivers/media/i2c/tda7432.c
index f7707e65761e..28b5121881f5 100644
--- a/drivers/media/i2c/tda7432.c
+++ b/drivers/media/i2c/tda7432.c
@@ -35,6 +35,7 @@
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
#include <media/i2c-addr.h>
#ifndef VIDEO_AUDIO_BALANCE
@@ -60,13 +61,17 @@ MODULE_PARM_DESC(maxvol, "Set maximium volume to +20dB(0) else +0dB(1). Default
struct tda7432 {
struct v4l2_subdev sd;
- int addr;
- int input;
- int volume;
- int muted;
- int bass, treble;
- int lf, lr, rf, rr;
- int loud;
+ struct v4l2_ctrl_handler hdl;
+ struct {
+ /* bass/treble cluster */
+ struct v4l2_ctrl *bass;
+ struct v4l2_ctrl *treble;
+ };
+ struct {
+ /* mute/balance cluster */
+ struct v4l2_ctrl *mute;
+ struct v4l2_ctrl *balance;
+ };
};
static inline struct tda7432 *to_state(struct v4l2_subdev *sd)
@@ -74,6 +79,11 @@ static inline struct tda7432 *to_state(struct v4l2_subdev *sd)
return container_of(sd, struct tda7432, sd);
}
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+ return &container_of(ctrl->handler, struct tda7432, hdl)->sd;
+}
+
/* The TDA7432 is made by STS-Thompson
* http://www.st.com
* http://us.st.com/stonline/books/pdf/docs/4056.pdf
@@ -227,24 +237,22 @@ static int tda7432_write(struct v4l2_subdev *sd, int subaddr, int val)
static int tda7432_set(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct tda7432 *t = to_state(sd);
unsigned char buf[16];
- v4l2_dbg(1, debug, sd,
- "tda7432: 7432_set(0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x)\n",
- t->input, t->volume, t->bass, t->treble, t->lf, t->lr,
- t->rf, t->rr, t->loud);
buf[0] = TDA7432_IN;
- buf[1] = t->input;
- buf[2] = t->volume;
- buf[3] = t->bass;
- buf[4] = t->treble;
- buf[5] = t->lf;
- buf[6] = t->lr;
- buf[7] = t->rf;
- buf[8] = t->rr;
- buf[9] = t->loud;
- if (10 != i2c_master_send(client, buf, 10)) {
+ buf[1] = TDA7432_STEREO_IN | /* Main (stereo) input */
+ TDA7432_BASS_SYM | /* Symmetric bass cut */
+ TDA7432_BASS_NORM; /* Normal bass range */
+ buf[2] = 0x3b;
+ if (loudness) /* Turn loudness on? */
+ buf[2] |= TDA7432_LD_ON;
+ buf[3] = TDA7432_TREBLE_0DB | (TDA7432_BASS_0DB << 4);
+ buf[4] = TDA7432_ATTEN_0DB;
+ buf[5] = TDA7432_ATTEN_0DB;
+ buf[6] = TDA7432_ATTEN_0DB;
+ buf[7] = TDA7432_ATTEN_0DB;
+ buf[8] = loudness;
+ if (9 != i2c_master_send(client, buf, 9)) {
v4l2_err(sd, "I/O error, trying tda7432_set\n");
return -1;
}
@@ -252,174 +260,86 @@ static int tda7432_set(struct v4l2_subdev *sd)
return 0;
}
-static void do_tda7432_init(struct v4l2_subdev *sd)
-{
- struct tda7432 *t = to_state(sd);
-
- v4l2_dbg(2, debug, sd, "In tda7432_init\n");
-
- t->input = TDA7432_STEREO_IN | /* Main (stereo) input */
- TDA7432_BASS_SYM | /* Symmetric bass cut */
- TDA7432_BASS_NORM; /* Normal bass range */
- t->volume = 0x3b ; /* -27dB Volume */
- if (loudness) /* Turn loudness on? */
- t->volume |= TDA7432_LD_ON;
- t->muted = 1;
- t->treble = TDA7432_TREBLE_0DB; /* 0dB Treble */
- t->bass = TDA7432_BASS_0DB; /* 0dB Bass */
- t->lf = TDA7432_ATTEN_0DB; /* 0dB attenuation */
- t->lr = TDA7432_ATTEN_0DB; /* 0dB attenuation */
- t->rf = TDA7432_ATTEN_0DB; /* 0dB attenuation */
- t->rr = TDA7432_ATTEN_0DB; /* 0dB attenuation */
- t->loud = loudness; /* insmod parameter */
-
- tda7432_set(sd);
-}
-
-static int tda7432_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int tda7432_log_status(struct v4l2_subdev *sd)
{
- struct tda7432 *t = to_state(sd);
+ struct tda7432 *state = to_state(sd);
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- ctrl->value=t->muted;
- return 0;
- case V4L2_CID_AUDIO_VOLUME:
- if (!maxvol){ /* max +20db */
- ctrl->value = ( 0x6f - (t->volume & 0x7F) ) * 630;
- } else { /* max 0db */
- ctrl->value = ( 0x6f - (t->volume & 0x7F) ) * 829;
- }
- return 0;
- case V4L2_CID_AUDIO_BALANCE:
- {
- if ( (t->lf) < (t->rf) )
- /* right is attenuated, balance shifted left */
- ctrl->value = (32768 - 1057*(t->rf));
- else
- /* left is attenuated, balance shifted right */
- ctrl->value = (32768 + 1057*(t->lf));
- return 0;
- }
- case V4L2_CID_AUDIO_BASS:
- {
- /* Bass/treble 4 bits each */
- int bass=t->bass;
- if(bass >= 0x8)
- bass = ~(bass - 0x8) & 0xf;
- ctrl->value = (bass << 12)+(bass << 8)+(bass << 4)+(bass);
- return 0;
- }
- case V4L2_CID_AUDIO_TREBLE:
- {
- int treble=t->treble;
- if(treble >= 0x8)
- treble = ~(treble - 0x8) & 0xf;
- ctrl->value = (treble << 12)+(treble << 8)+(treble << 4)+(treble);
- return 0;
- }
- }
- return -EINVAL;
+ v4l2_ctrl_handler_log_status(&state->hdl, sd->name);
+ return 0;
}
-static int tda7432_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int tda7432_s_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct v4l2_subdev *sd = to_sd(ctrl);
struct tda7432 *t = to_state(sd);
+ u8 bass, treble, volume;
+ u8 lf, lr, rf, rr;
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(sd, TDA7432_VL, t->volume);
- return 0;
- case V4L2_CID_AUDIO_BALANCE:
- if (ctrl->value < 32768) {
+ if (t->balance->val < 0) {
/* shifted to left, attenuate right */
- t->rr = (32768 - ctrl->value)/1057;
- t->rf = t->rr;
- t->lr = TDA7432_ATTEN_0DB;
- t->lf = TDA7432_ATTEN_0DB;
- } else if(ctrl->value > 32769) {
+ rr = rf = -t->balance->val;
+ lr = lf = TDA7432_ATTEN_0DB;
+ } else if (t->balance->val > 0) {
/* shifted to right, attenuate left */
- t->lf = (ctrl->value - 32768)/1057;
- t->lr = t->lf;
- t->rr = TDA7432_ATTEN_0DB;
- t->rf = TDA7432_ATTEN_0DB;
+ rr = rf = TDA7432_ATTEN_0DB;
+ lr = lf = t->balance->val;
} else {
/* centered */
- t->rr = TDA7432_ATTEN_0DB;
- t->rf = TDA7432_ATTEN_0DB;
- t->lf = TDA7432_ATTEN_0DB;
- t->lr = TDA7432_ATTEN_0DB;
+ rr = rf = TDA7432_ATTEN_0DB;
+ lr = lf = 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(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble);
+ if (t->mute->val) {
+ lf |= TDA7432_MUTE;
+ lr |= TDA7432_MUTE;
+ lf |= TDA7432_MUTE;
+ rr |= TDA7432_MUTE;
+ }
+ /* Mute & update balance*/
+ tda7432_write(sd, TDA7432_LF, lf);
+ tda7432_write(sd, TDA7432_LR, lr);
+ tda7432_write(sd, TDA7432_RF, rf);
+ tda7432_write(sd, TDA7432_RR, rr);
return 0;
- case V4L2_CID_AUDIO_TREBLE:
- t->treble= ctrl->value >> 12;
- if(t->treble>= 0x8)
- t->treble = (~t->treble & 0xf) + 0x8 ;
+ case V4L2_CID_AUDIO_VOLUME:
+ volume = 0x6f - ctrl->val;
+ if (loudness) /* Turn on the loudness bit */
+ volume |= TDA7432_LD_ON;
- tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble);
+ tda7432_write(sd, TDA7432_VL, volume);
return 0;
- default:
- return -EINVAL;
- }
-
- /* Used for both mute and balance changes */
- if (t->muted)
- {
- /* Mute & update balance*/
- tda7432_write(sd, TDA7432_LF, t->lf | TDA7432_MUTE);
- tda7432_write(sd, TDA7432_LR, t->lr | TDA7432_MUTE);
- tda7432_write(sd, TDA7432_RF, t->rf | TDA7432_MUTE);
- tda7432_write(sd, TDA7432_RR, t->rr | TDA7432_MUTE);
- } else {
- tda7432_write(sd, TDA7432_LF, t->lf);
- tda7432_write(sd, TDA7432_LR, t->lr);
- tda7432_write(sd, TDA7432_RF, t->rf);
- tda7432_write(sd, TDA7432_RR, t->rr);
- }
- return 0;
-}
-
-static int tda7432_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
-{
- switch (qc->id) {
- case V4L2_CID_AUDIO_VOLUME:
- return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
- case V4L2_CID_AUDIO_MUTE:
- return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
- case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
- case V4L2_CID_AUDIO_TREBLE:
- return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
+ bass = t->bass->val;
+ treble = t->treble->val;
+ if (bass >= 0x8)
+ bass = 14 - (bass - 8);
+ if (treble >= 0x8)
+ treble = 14 - (treble - 8);
+
+ tda7432_write(sd, TDA7432_TN, 0x10 | (bass << 4) | treble);
+ return 0;
}
return -EINVAL;
}
/* ----------------------------------------------------------------------- */
-static const struct v4l2_subdev_core_ops tda7432_core_ops = {
- .queryctrl = tda7432_queryctrl,
- .g_ctrl = tda7432_g_ctrl,
+static const struct v4l2_ctrl_ops tda7432_ctrl_ops = {
.s_ctrl = tda7432_s_ctrl,
};
+static const struct v4l2_subdev_core_ops tda7432_core_ops = {
+ .log_status = tda7432_log_status,
+ .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
+ .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
+ .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
+ .g_ctrl = v4l2_subdev_g_ctrl,
+ .s_ctrl = v4l2_subdev_s_ctrl,
+ .queryctrl = v4l2_subdev_queryctrl,
+ .querymenu = v4l2_subdev_querymenu,
+};
+
static const struct v4l2_subdev_ops tda7432_ops = {
.core = &tda7432_core_ops,
};
@@ -444,6 +364,28 @@ static int tda7432_probe(struct i2c_client *client,
return -ENOMEM;
sd = &t->sd;
v4l2_i2c_subdev_init(sd, client, &tda7432_ops);
+ v4l2_ctrl_handler_init(&t->hdl, 5);
+ v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
+ V4L2_CID_AUDIO_VOLUME, 0, maxvol ? 0x68 : 0x4f, 1, maxvol ? 0x5d : 0x47);
+ t->mute = v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
+ V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
+ t->balance = v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
+ V4L2_CID_AUDIO_BALANCE, -31, 31, 1, 0);
+ t->bass = v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
+ V4L2_CID_AUDIO_BASS, 0, 14, 1, 7);
+ t->treble = v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
+ V4L2_CID_AUDIO_TREBLE, 0, 14, 1, 7);
+ sd->ctrl_handler = &t->hdl;
+ if (t->hdl.error) {
+ int err = t->hdl.error;
+
+ v4l2_ctrl_handler_free(&t->hdl);
+ kfree(t);
+ return err;
+ }
+ v4l2_ctrl_cluster(2, &t->bass);
+ v4l2_ctrl_cluster(2, &t->mute);
+ v4l2_ctrl_handler_setup(&t->hdl);
if (loudness < 0 || loudness > 15) {
v4l2_warn(sd, "loudness parameter must be between 0 and 15\n");
if (loudness < 0)
@@ -452,17 +394,19 @@ static int tda7432_probe(struct i2c_client *client,
loudness = 15;
}
- do_tda7432_init(sd);
+ tda7432_set(sd);
return 0;
}
static int tda7432_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct tda7432 *t = to_state(sd);
- do_tda7432_init(sd);
+ tda7432_set(sd);
v4l2_device_unregister_subdev(sd);
- kfree(to_state(sd));
+ v4l2_ctrl_handler_free(&t->hdl);
+ kfree(t);
return 0;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 19:48:52 +0300