#include <linux/videodev2.h>
#include <linux/i2c.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/i2c-addr.h>
+#include <media/v4l2-i2c-drv-legacy.h>
#ifndef VIDEO_AUDIO_BALANCE
# define VIDEO_AUDIO_BALANCE 32
/* 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;
+
+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];
- v4l_dbg(2, debug,client,"In tda7432_write\n");
- v4l_dbg(1, debug,client,"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)) {
- v4l_err(client,"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... */
-
-static int tda7432_set(struct i2c_client *client)
+static int tda7432_set(struct v4l2_subdev *sd)
{
- 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];
- v4l_dbg(2, debug,client,"In tda7432_set\n");
- v4l_dbg(1, debug,client,
+ 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)) {
- v4l_err(client,"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);
- v4l_dbg(2, debug,client,"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->rr = TDA7432_ATTEN_0DB; /* 0dB attenuation */
t->loud = loudness; /* insmod parameter */
- tda7432_set(client);
+ tda7432_set(sd);
}
-/* *********************** *
- * i2c interface functions *
- * *********************** */
-
-static int tda7432_attach(struct i2c_adapter *adap, int addr, int kind)
+static int tda7432_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
- struct tda7432 *t;
- struct i2c_client *client;
-
- t = kzalloc(sizeof *t,GFP_KERNEL);
- if (!t)
- return -ENOMEM;
-
- 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);
- i2c_attach_client(client);
-
- v4l_info(client, "chip found @ 0x%x (%s)\n", addr << 1, adap->name);
- return 0;
-}
-
-static int tda7432_probe(struct i2c_adapter *adap)
-{
- if (adap->class & I2C_CLASS_TV_ANALOG)
- return i2c_probe(adap, &addr_data, tda7432_attach);
- return 0;
-}
-
-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_get_ctrl(struct i2c_client *client,
- struct v4l2_control *ctrl)
-{
- struct tda7432 *t = i2c_get_clientdata(client);
+ struct tda7432 *t = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
return -EINVAL;
}
-static int tda7432_set_ctrl(struct i2c_client *client,
- struct v4l2_control *ctrl)
+static int tda7432_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
- struct tda7432 *t = i2c_get_clientdata(client);
+ struct tda7432 *t = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
if (loudness) /* Turn on the loudness bit */
t->volume |= TDA7432_LD_ON;
- tda7432_write(client,TDA7432_VL, t->volume);
+ tda7432_write(sd, TDA7432_VL, t->volume);
return 0;
case V4L2_CID_AUDIO_BALANCE:
if (ctrl->value < 32768) {
if(t->bass>= 0x8)
t->bass = (~t->bass & 0xf) + 0x8 ;
- tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
+ 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(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
+ tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble);
return 0;
default:
return -EINVAL;
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);
+ 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(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);
+ 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_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
+static int tda7432_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
- 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;
- }
+ 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:
return v4l2_ctrl_query_fill_std(qc);
}
- case VIDIOC_S_CTRL:
- return tda7432_set_ctrl(client, arg);
-
- case VIDIOC_G_CTRL:
- return tda7432_get_ctrl(client, arg);
-
- } /* end of (cmd) switch */
+ return -EINVAL;
+}
- return 0;
+static int tda7432_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+ return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
}
-static struct i2c_driver driver = {
- .driver = {
- .name = "tda7432",
- },
- .id = I2C_DRIVERID_TDA7432,
- .attach_adapter = tda7432_probe,
- .detach_client = tda7432_detach,
- .command = tda7432_command,
+/* ----------------------------------------------------------------------- */
+
+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 =
-{
- .name = "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 "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);
-module_init(tda7432_init);
-module_exit(tda7432_fini);
+ do_tda7432_init(sd);
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_state(sd));
+ return 0;
+}
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
+static const struct i2c_device_id tda7432_id[] = {
+ { "tda7432", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tda7432_id);
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "tda7432",
+ .driverid = I2C_DRIVERID_TDA7432,
+ .command = tda7432_command,
+ .probe = tda7432_probe,
+ .remove = tda7432_remove,
+ .id_table = tda7432_id,
+};
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff