forked from Minki/linux
V4L/DVB (9964): tda7432: convert to v4l2_subdev.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
6869ffe80e
commit
d531305ae1
@ -47,9 +47,10 @@
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#include <linux/videodev2.h>
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#include <linux/i2c.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <media/i2c-addr.h>
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#include <media/v4l2-i2c-drv-legacy.h>
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#ifndef VIDEO_AUDIO_BALANCE
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# define VIDEO_AUDIO_BALANCE 32
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@ -79,6 +80,7 @@ I2C_CLIENT_INSMOD;
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/* Structure of address and subaddresses for the tda7432 */
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struct tda7432 {
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struct v4l2_subdev sd;
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int addr;
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int input;
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int volume;
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@ -86,10 +88,12 @@ struct tda7432 {
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int bass, treble;
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int lf, lr, rf, rr;
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int loud;
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struct i2c_client c;
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};
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static struct i2c_driver driver;
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static struct i2c_client client_template;
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static inline struct tda7432 *to_state(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct tda7432, sd);
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}
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/* The TDA7432 is made by STS-Thompson
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* http://www.st.com
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@ -224,32 +228,33 @@ static struct i2c_client client_template;
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/* Begin code */
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static int tda7432_write(struct i2c_client *client, int subaddr, int val)
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static int tda7432_write(struct v4l2_subdev *sd, int subaddr, int val)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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unsigned char buffer[2];
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v4l_dbg(2, debug,client,"In tda7432_write\n");
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v4l_dbg(1, debug,client,"Writing %d 0x%x\n", subaddr, val);
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v4l2_dbg(2, debug, sd, "In tda7432_write\n");
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v4l2_dbg(1, debug, sd, "Writing %d 0x%x\n", subaddr, val);
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buffer[0] = subaddr;
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buffer[1] = val;
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if (2 != i2c_master_send(client,buffer,2)) {
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v4l_err(client,"I/O error, trying (write %d 0x%x)\n",
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if (2 != i2c_master_send(client, buffer, 2)) {
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v4l2_err(sd, "I/O error, trying (write %d 0x%x)\n",
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subaddr, val);
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return -1;
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}
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return 0;
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}
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/* I don't think we ever actually _read_ the chip... */
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static int tda7432_set(struct i2c_client *client)
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static int tda7432_set(struct v4l2_subdev *sd)
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{
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struct tda7432 *t = i2c_get_clientdata(client);
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct tda7432 *t = to_state(sd);
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unsigned char buf[16];
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v4l_dbg(2, debug,client,"In tda7432_set\n");
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v4l_dbg(1, debug,client,
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v4l2_dbg(1, debug, sd,
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"tda7432: 7432_set(0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x)\n",
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t->input,t->volume,t->bass,t->treble,t->lf,t->lr,t->rf,t->rr,t->loud);
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t->input, t->volume, t->bass, t->treble, t->lf, t->lr,
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t->rf, t->rr, t->loud);
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buf[0] = TDA7432_IN;
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buf[1] = t->input;
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buf[2] = t->volume;
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@ -260,18 +265,19 @@ static int tda7432_set(struct i2c_client *client)
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buf[7] = t->rf;
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buf[8] = t->rr;
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buf[9] = t->loud;
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if (10 != i2c_master_send(client,buf,10)) {
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v4l_err(client,"I/O error, trying tda7432_set\n");
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if (10 != i2c_master_send(client, buf, 10)) {
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v4l2_err(sd, "I/O error, trying tda7432_set\n");
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return -1;
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}
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return 0;
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}
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static void do_tda7432_init(struct i2c_client *client)
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static void do_tda7432_init(struct v4l2_subdev *sd)
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{
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struct tda7432 *t = i2c_get_clientdata(client);
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v4l_dbg(2, debug,client,"In tda7432_init\n");
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struct tda7432 *t = to_state(sd);
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v4l2_dbg(2, debug, sd, "In tda7432_init\n");
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t->input = TDA7432_STEREO_IN | /* Main (stereo) input */
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TDA7432_BASS_SYM | /* Symmetric bass cut */
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@ -288,57 +294,12 @@ static void do_tda7432_init(struct i2c_client *client)
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t->rr = TDA7432_ATTEN_0DB; /* 0dB attenuation */
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t->loud = loudness; /* insmod parameter */
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tda7432_set(client);
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tda7432_set(sd);
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}
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/* *********************** *
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* i2c interface functions *
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* *********************** */
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static int tda7432_attach(struct i2c_adapter *adap, int addr, int kind)
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static int tda7432_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
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{
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struct tda7432 *t;
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struct i2c_client *client;
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t = kzalloc(sizeof *t,GFP_KERNEL);
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if (!t)
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return -ENOMEM;
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client = &t->c;
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memcpy(client,&client_template,sizeof(struct i2c_client));
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client->adapter = adap;
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client->addr = addr;
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i2c_set_clientdata(client, t);
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do_tda7432_init(client);
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i2c_attach_client(client);
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v4l_info(client, "chip found @ 0x%x (%s)\n", addr << 1, adap->name);
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return 0;
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}
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static int tda7432_probe(struct i2c_adapter *adap)
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{
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if (adap->class & I2C_CLASS_TV_ANALOG)
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return i2c_probe(adap, &addr_data, tda7432_attach);
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return 0;
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}
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static int tda7432_detach(struct i2c_client *client)
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{
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struct tda7432 *t = i2c_get_clientdata(client);
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do_tda7432_init(client);
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i2c_detach_client(client);
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kfree(t);
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return 0;
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}
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static int tda7432_get_ctrl(struct i2c_client *client,
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struct v4l2_control *ctrl)
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{
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struct tda7432 *t = i2c_get_clientdata(client);
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struct tda7432 *t = to_state(sd);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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@ -382,10 +343,9 @@ static int tda7432_get_ctrl(struct i2c_client *client,
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return -EINVAL;
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}
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static int tda7432_set_ctrl(struct i2c_client *client,
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struct v4l2_control *ctrl)
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static int tda7432_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
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{
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struct tda7432 *t = i2c_get_clientdata(client);
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struct tda7432 *t = to_state(sd);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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@ -400,7 +360,7 @@ static int tda7432_set_ctrl(struct i2c_client *client,
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if (loudness) /* Turn on the loudness bit */
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t->volume |= TDA7432_LD_ON;
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tda7432_write(client,TDA7432_VL, t->volume);
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tda7432_write(sd, TDA7432_VL, t->volume);
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return 0;
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case V4L2_CID_AUDIO_BALANCE:
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if (ctrl->value < 32768) {
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@ -428,14 +388,14 @@ static int tda7432_set_ctrl(struct i2c_client *client,
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if(t->bass>= 0x8)
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t->bass = (~t->bass & 0xf) + 0x8 ;
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tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
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tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble);
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return 0;
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case V4L2_CID_AUDIO_TREBLE:
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t->treble= ctrl->value >> 12;
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if(t->treble>= 0x8)
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t->treble = (~t->treble & 0xf) + 0x8 ;
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tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
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tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble);
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return 0;
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default:
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return -EINVAL;
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@ -445,92 +405,102 @@ static int tda7432_set_ctrl(struct i2c_client *client,
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if (t->muted)
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{
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/* Mute & update balance*/
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tda7432_write(client,TDA7432_LF, t->lf | TDA7432_MUTE);
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tda7432_write(client,TDA7432_LR, t->lr | TDA7432_MUTE);
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tda7432_write(client,TDA7432_RF, t->rf | TDA7432_MUTE);
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tda7432_write(client,TDA7432_RR, t->rr | TDA7432_MUTE);
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tda7432_write(sd, TDA7432_LF, t->lf | TDA7432_MUTE);
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tda7432_write(sd, TDA7432_LR, t->lr | TDA7432_MUTE);
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tda7432_write(sd, TDA7432_RF, t->rf | TDA7432_MUTE);
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tda7432_write(sd, TDA7432_RR, t->rr | TDA7432_MUTE);
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} else {
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tda7432_write(client,TDA7432_LF, t->lf);
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tda7432_write(client,TDA7432_LR, t->lr);
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tda7432_write(client,TDA7432_RF, t->rf);
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tda7432_write(client,TDA7432_RR, t->rr);
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tda7432_write(sd, TDA7432_LF, t->lf);
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tda7432_write(sd, TDA7432_LR, t->lr);
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tda7432_write(sd, TDA7432_RF, t->rf);
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tda7432_write(sd, TDA7432_RR, t->rr);
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}
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return 0;
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}
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static int tda7432_command(struct i2c_client *client,
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unsigned int cmd, void *arg)
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static int tda7432_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
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{
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v4l_dbg(2, debug,client,"In tda7432_command\n");
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if (debug>1)
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v4l_i2c_print_ioctl(client,cmd);
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switch (cmd) {
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/* --- v4l ioctls --- */
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/* take care: bttv does userspace copying, we'll get a
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kernel pointer here... */
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case VIDIOC_QUERYCTRL:
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{
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struct v4l2_queryctrl *qc = arg;
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switch (qc->id) {
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case V4L2_CID_AUDIO_MUTE:
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case V4L2_CID_AUDIO_VOLUME:
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case V4L2_CID_AUDIO_BALANCE:
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case V4L2_CID_AUDIO_BASS:
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case V4L2_CID_AUDIO_TREBLE:
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default:
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return -EINVAL;
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}
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switch (qc->id) {
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case V4L2_CID_AUDIO_MUTE:
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case V4L2_CID_AUDIO_VOLUME:
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case V4L2_CID_AUDIO_BALANCE:
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case V4L2_CID_AUDIO_BASS:
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case V4L2_CID_AUDIO_TREBLE:
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return v4l2_ctrl_query_fill_std(qc);
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}
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case VIDIOC_S_CTRL:
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return tda7432_set_ctrl(client, arg);
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return -EINVAL;
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}
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case VIDIOC_G_CTRL:
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return tda7432_get_ctrl(client, arg);
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static int tda7432_command(struct i2c_client *client, unsigned cmd, void *arg)
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{
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return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
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}
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} /* end of (cmd) switch */
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/* ----------------------------------------------------------------------- */
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static const struct v4l2_subdev_core_ops tda7432_core_ops = {
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.queryctrl = tda7432_queryctrl,
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.g_ctrl = tda7432_g_ctrl,
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.s_ctrl = tda7432_s_ctrl,
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};
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static const struct v4l2_subdev_ops tda7432_ops = {
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.core = &tda7432_core_ops,
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};
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/* ----------------------------------------------------------------------- */
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/* *********************** *
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* i2c interface functions *
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* *********************** */
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static int tda7432_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct tda7432 *t;
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struct v4l2_subdev *sd;
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v4l_info(client, "chip found @ 0x%02x (%s)\n",
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client->addr << 1, client->adapter->name);
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t = kzalloc(sizeof(*t), GFP_KERNEL);
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if (!t)
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return -ENOMEM;
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sd = &t->sd;
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v4l2_i2c_subdev_init(sd, client, &tda7432_ops);
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if (loudness < 0 || loudness > 15) {
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v4l2_warn(sd, "loudness parameter must be between 0 and 15\n");
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if (loudness < 0)
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loudness = 0;
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if (loudness > 15)
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loudness = 15;
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}
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do_tda7432_init(sd);
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return 0;
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}
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static struct i2c_driver driver = {
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.driver = {
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.name = "tda7432",
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},
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.id = I2C_DRIVERID_TDA7432,
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.attach_adapter = tda7432_probe,
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.detach_client = tda7432_detach,
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.command = tda7432_command,
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};
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static struct i2c_client client_template =
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static int tda7432_remove(struct i2c_client *client)
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{
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.name = "tda7432",
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.driver = &driver,
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};
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struct v4l2_subdev *sd = i2c_get_clientdata(client);
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static int __init tda7432_init(void)
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{
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if ( (loudness < 0) || (loudness > 15) ) {
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printk(KERN_ERR "loudness parameter must be between 0 and 15\n");
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return -EINVAL;
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}
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return i2c_add_driver(&driver);
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do_tda7432_init(sd);
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v4l2_device_unregister_subdev(sd);
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kfree(to_state(sd));
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return 0;
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}
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static void __exit tda7432_fini(void)
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{
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i2c_del_driver(&driver);
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}
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static const struct i2c_device_id tda7432_id[] = {
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{ "tda7432", 0 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, tda7432_id);
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module_init(tda7432_init);
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module_exit(tda7432_fini);
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/*
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* Local variables:
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* c-basic-offset: 8
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* End:
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*/
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static struct v4l2_i2c_driver_data v4l2_i2c_data = {
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.name = "tda7432",
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.driverid = I2C_DRIVERID_TDA7432,
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.command = tda7432_command,
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.probe = tda7432_probe,
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.remove = tda7432_remove,
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.id_table = tda7432_id,
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};
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