* 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
* loudness - set between 0 and 15 for varying degrees of loudness effect
*
* maxvol - set maximium volume to +20db (1), default is 0db(0)
- *
- *
- * Revision: 0.7 - maxvol module parm to set maximium volume 0db or +20db
- * store if muted so we can return it
- * change balance only if flaged to
- * Revision: 0.6 - added tone controls
- * Revision: 0.5 - Fixed odd balance problem
- * Revision: 0.4 - added muting
- * Revision: 0.3 - Fixed silly reversed volume controls. :)
- * Revision: 0.2 - Cleaned up #defines
- * fixed volume control
- * Added I2C_DRIVERID_TDA7432
- * added loudness insmod control
- * Revision: 0.1 - initial version
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include "bttv.h"
-#include <media/audiochip.h>
-#include <media/id.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/i2c-addr.h>
+#include <media/v4l2-i2c-drv.h>
#ifndef VIDEO_AUDIO_BALANCE
# define VIDEO_AUDIO_BALANCE 32
module_param(maxvol, int, S_IRUGO | S_IWUSR);
-/* Address to scan (I2C address of this chip) */
-static unsigned short normal_i2c[] = {
- I2C_TDA7432 >> 1,
- I2C_CLIENT_END,
-};
-I2C_CLIENT_INSMOD;
/* Structure of address and subaddresses for the tda7432 */
struct tda7432 {
+ struct v4l2_subdev sd;
int addr;
int input;
int volume;
int bass, treble;
int lf, lr, rf, rr;
int loud;
- struct i2c_client c;
};
-static struct i2c_driver driver;
-static struct i2c_client client_template;
-#define dprintk if (debug) printk
-#define d2printk if (debug > 1) printk
+static inline struct tda7432 *to_state(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct tda7432, sd);
+}
/* The TDA7432 is made by STS-Thompson
* http://www.st.com
/* Begin code */
-static int tda7432_write(struct i2c_client *client, int subaddr, int val)
+static int tda7432_write(struct v4l2_subdev *sd, int subaddr, int val)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
unsigned char buffer[2];
- d2printk("tda7432: In tda7432_write\n");
- dprintk("tda7432: Writing %d 0x%x\n", subaddr, val);
+
+ v4l2_dbg(2, debug, sd, "In tda7432_write\n");
+ v4l2_dbg(1, debug, sd, "Writing %d 0x%x\n", subaddr, val);
buffer[0] = subaddr;
buffer[1] = val;
- if (2 != i2c_master_send(client,buffer,2)) {
- printk(KERN_WARNING "tda7432: I/O error, trying (write %d 0x%x)\n",
+ if (2 != i2c_master_send(client, buffer, 2)) {
+ v4l2_err(sd, "I/O error, trying (write %d 0x%x)\n",
subaddr, val);
return -1;
}
return 0;
}
-/* I don't think we ever actually _read_ the chip... */
-#if 0
-static int tda7432_read(struct i2c_client *client)
+static int tda7432_set(struct v4l2_subdev *sd)
{
- unsigned char buffer;
- d2printk("tda7432: In tda7432_read\n");
- if (1 != i2c_master_recv(client,&buffer,1)) {
- printk(KERN_WARNING "tda7432: I/O error, trying (read)\n");
- return -1;
- }
- dprintk("tda7432: Read 0x%02x\n", buffer);
- return buffer;
-}
-#endif
-
-static int tda7432_set(struct i2c_client *client)
-{
- struct tda7432 *t = i2c_get_clientdata(client);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct tda7432 *t = to_state(sd);
unsigned char buf[16];
- d2printk("tda7432: In tda7432_set\n");
- dprintk(KERN_INFO
+ 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);
+ 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[7] = t->rf;
buf[8] = t->rr;
buf[9] = t->loud;
- if (10 != i2c_master_send(client,buf,10)) {
- printk(KERN_WARNING "tda7432: I/O error, trying tda7432_set\n");
+ if (10 != i2c_master_send(client, buf, 10)) {
+ v4l2_err(sd, "I/O error, trying tda7432_set\n");
return -1;
}
return 0;
}
-static void do_tda7432_init(struct i2c_client *client)
+static void do_tda7432_init(struct v4l2_subdev *sd)
{
- struct tda7432 *t = i2c_get_clientdata(client);
- d2printk("tda7432: In tda7432_init\n");
+ 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 */
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 */
t->rr = TDA7432_ATTEN_0DB; /* 0dB attenuation */
t->loud = loudness; /* insmod parameter */
- tda7432_set(client);
-}
-
-/* *********************** *
- * i2c interface functions *
- * *********************** */
-
-static int tda7432_attach(struct i2c_adapter *adap, int addr, int kind)
-{
- struct tda7432 *t;
- struct i2c_client *client;
- d2printk("tda7432: In tda7432_attach\n");
-
- t = kmalloc(sizeof *t,GFP_KERNEL);
- if (!t)
- return -ENOMEM;
- memset(t,0,sizeof *t);
-
- client = &t->c;
- memcpy(client,&client_template,sizeof(struct i2c_client));
- client->adapter = adap;
- client->addr = addr;
- i2c_set_clientdata(client, t);
-
- do_tda7432_init(client);
- printk(KERN_INFO "tda7432: init\n");
-
- i2c_attach_client(client);
- return 0;
+ tda7432_set(sd);
}
-static int tda7432_probe(struct i2c_adapter *adap)
+static int tda7432_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
-#ifdef I2C_CLASS_TV_ANALOG
- if (adap->class & I2C_CLASS_TV_ANALOG)
- return i2c_probe(adap, &addr_data, tda7432_attach);
-#else
- if (adap->id == (I2C_ALGO_BIT | I2C_HW_B_BT848))
- return i2c_probe(adap, &addr_data, tda7432_attach);
-#endif
- return 0;
-}
+ struct tda7432 *t = to_state(sd);
-static int tda7432_detach(struct i2c_client *client)
-{
- struct tda7432 *t = i2c_get_clientdata(client);
-
- do_tda7432_init(client);
- i2c_detach_client(client);
-
- kfree(t);
- return 0;
-}
-
-static int tda7432_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
-{
- struct tda7432 *t = i2c_get_clientdata(client);
- d2printk("tda7432: In tda7432_command\n");
-
- 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;
- dprintk("tda7432: VIDIOCGAUDIO\n");
-
- 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;
- dprintk("tda7432: VIDEOCSAUDIO\n");
+ 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_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct tda7432 *t = to_state(sd);
+ 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(sd, 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;
}
- }
-
- 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);
- }
-
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);
+ return 0;
+ case V4L2_CID_AUDIO_TREBLE:
+ t->treble= ctrl->value >> 12;
+ if(t->treble>= 0x8)
+ t->treble = (~t->treble & 0xf) + 0x8 ;
+
+ tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble);
+ return 0;
+ default:
+ return -EINVAL;
+ }
- } /* end of VIDEOCSAUDIO case */
-
- default: /* Not VIDEOCGAUDIO or VIDEOCSAUDIO */
-
- /* nothing */
- d2printk("tda7432: Default\n");
-
- } /* end of (cmd) switch */
-
+ /* 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 struct i2c_driver driver = {
- .owner = THIS_MODULE,
- .name = "i2c tda7432 driver",
- .id = I2C_DRIVERID_TDA7432,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = tda7432_probe,
- .detach_client = tda7432_detach,
- .command = tda7432_command,
+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);
+ }
+ return -EINVAL;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops tda7432_core_ops = {
+ .queryctrl = tda7432_queryctrl,
+ .g_ctrl = tda7432_g_ctrl,
+ .s_ctrl = tda7432_s_ctrl,
};
-static struct i2c_client client_template =
-{
- I2C_DEVNAME("tda7432"),
- .driver = &driver,
+static const struct v4l2_subdev_ops tda7432_ops = {
+ .core = &tda7432_core_ops,
};
-static int __init tda7432_init(void)
+/* ----------------------------------------------------------------------- */
+
+/* *********************** *
+ * i2c interface functions *
+ * *********************** */
+
+static int tda7432_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- if ( (loudness < 0) || (loudness > 15) ) {
- printk(KERN_ERR "tda7432: loudness parameter must be between 0 and 15\n");
- return -EINVAL;
+ struct tda7432 *t;
+ struct v4l2_subdev *sd;
+
+ v4l_info(client, "chip found @ 0x%02x (%s)\n",
+ client->addr << 1, client->adapter->name);
+
+ t = kzalloc(sizeof(*t), GFP_KERNEL);
+ if (!t)
+ return -ENOMEM;
+ sd = &t->sd;
+ v4l2_i2c_subdev_init(sd, client, &tda7432_ops);
+ if (loudness < 0 || loudness > 15) {
+ v4l2_warn(sd, "loudness parameter must be between 0 and 15\n");
+ if (loudness < 0)
+ loudness = 0;
+ if (loudness > 15)
+ loudness = 15;
}
- return i2c_add_driver(&driver);
+ do_tda7432_init(sd);
+ return 0;
}
-static void __exit tda7432_fini(void)
+static int tda7432_remove(struct i2c_client *client)
{
- i2c_del_driver(&driver);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ do_tda7432_init(sd);
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_state(sd));
+ return 0;
}
-module_init(tda7432_init);
-module_exit(tda7432_fini);
+static const struct i2c_device_id tda7432_id[] = {
+ { "tda7432", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tda7432_id);
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "tda7432",
+ .probe = tda7432_probe,
+ .remove = tda7432_remove,
+ .id_table = tda7432_id,
+};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff