From d531305ae148d5a401f34cd64434824f5cb8c2b1 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Thu, 18 Dec 2008 13:04:05 -0300 Subject: [PATCH] V4L/DVB (9964): tda7432: convert to v4l2_subdev. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/tda7432.c | 252 +++++++++++++++------------------- 1 file changed, 111 insertions(+), 141 deletions(-) diff --git a/drivers/media/video/tda7432.c b/drivers/media/video/tda7432.c index 4963d426488..0c020585fff 100644 --- a/drivers/media/video/tda7432.c +++ b/drivers/media/video/tda7432.c @@ -47,9 +47,10 @@ #include #include -#include +#include #include #include +#include #ifndef VIDEO_AUDIO_BALANCE # define VIDEO_AUDIO_BALANCE 32 @@ -79,6 +80,7 @@ I2C_CLIENT_INSMOD; /* Structure of address and subaddresses for the tda7432 */ struct tda7432 { + struct v4l2_subdev sd; int addr; int input; int volume; @@ -86,10 +88,12 @@ struct tda7432 { 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 @@ -224,32 +228,33 @@ static struct i2c_client client_template; /* 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; @@ -260,18 +265,19 @@ static int tda7432_set(struct i2c_client *client) 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 */ @@ -288,57 +294,12 @@ static void do_tda7432_init(struct i2c_client *client) 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: @@ -382,10 +343,9 @@ static int tda7432_get_ctrl(struct i2c_client *client, 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: @@ -400,7 +360,7 @@ static int tda7432_set_ctrl(struct i2c_client *client, 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) { @@ -428,14 +388,14 @@ static int tda7432_set_ctrl(struct i2c_client *client, 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; @@ -445,92 +405,102 @@ static int tda7432_set_ctrl(struct i2c_client *client, 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, +}; -- 2.41.0