diff options
| -rw-r--r-- | drivers/media/i2c/tda7432.c | 276 |
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; } |