*
* Copyright (c) 2000 Guillaume Delvit based on Gerd Knorr source and
* Eric Sandeen
+ * 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
#include <linux/module.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/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include <linux/init.h>
-
-#include "bttv.h"
-#include <media/audiochip.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-i2c-drv.h>
+#include <media/i2c-addr.h>
static int debug; /* insmod parameter */
module_param(debug, int, S_IRUGO | S_IWUSR);
MODULE_LICENSE("GPL");
-/* Addresses to scan */
-static unsigned short normal_i2c[] = {
- I2C_TDA9875 >> 1,
- I2C_CLIENT_END
-};
-I2C_CLIENT_INSMOD;
-
/* This is a superset of the TDA9875 */
struct tda9875 {
- int mode;
+ struct v4l2_subdev sd;
int rvol, lvol;
int bass, treble;
- struct i2c_client c;
};
-static struct i2c_driver driver;
-static struct i2c_client client_template;
+static inline struct tda9875 *to_state(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct tda9875, sd);
+}
#define dprintk if (debug) printk
/* Begin code */
-static int tda9875_write(struct i2c_client *client, int subaddr, unsigned char val)
+static int tda9875_write(struct v4l2_subdev *sd, int subaddr, unsigned char val)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
unsigned char buffer[2];
- dprintk("In tda9875_write\n");
- dprintk("Writing %d 0x%x\n", subaddr, val);
+
+ 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 "tda9875: I/O error, trying (write %d 0x%x)\n",
+ if (2 != i2c_master_send(client, buffer, 2)) {
+ v4l2_warn(sd, "I/O error, trying (write %d 0x%x)\n",
subaddr, val);
return -1;
}
}
-static int i2c_read_register(struct i2c_adapter *adap, int addr, int reg)
+static int i2c_read_register(struct i2c_client *client, int addr, int reg)
{
unsigned char write[1];
unsigned char read[1];
{ addr, 0, 1, write },
{ addr, I2C_M_RD, 1, read }
};
+
write[0] = reg;
- if (2 != i2c_transfer(adap,msgs,2)) {
- printk(KERN_WARNING "tda9875: I/O error (read2)\n");
+ if (2 != i2c_transfer(client->adapter, msgs, 2)) {
+ v4l_warn(client, "I/O error (read2)\n");
return -1;
}
- dprintk("tda9875: chip_read2: reg%d=0x%x\n",reg,read[0]);
+ v4l_dbg(1, debug, client, "chip_read2: reg%d=0x%x\n", reg, read[0]);
return read[0];
}
-static void tda9875_set(struct i2c_client *client)
+static void tda9875_set(struct v4l2_subdev *sd)
{
- struct tda9875 *tda = i2c_get_clientdata(client);
+ struct tda9875 *tda = to_state(sd);
unsigned char a;
- dprintk(KERN_DEBUG "tda9875_set(%04x,%04x,%04x,%04x)\n",
- tda->lvol,tda->rvol,tda->bass,tda->treble);
-
+ v4l2_dbg(1, debug, sd, "tda9875_set(%04x,%04x,%04x,%04x)\n",
+ tda->lvol, tda->rvol, tda->bass, tda->treble);
a = tda->lvol & 0xff;
- tda9875_write(client, TDA9875_MVL, a);
+ tda9875_write(sd, TDA9875_MVL, a);
a =tda->rvol & 0xff;
- tda9875_write(client, TDA9875_MVR, a);
+ tda9875_write(sd, TDA9875_MVR, a);
a =tda->bass & 0xff;
- tda9875_write(client, TDA9875_MBA, a);
+ tda9875_write(sd, TDA9875_MBA, a);
a =tda->treble & 0xff;
- tda9875_write(client, TDA9875_MTR, a);
+ tda9875_write(sd, TDA9875_MTR, a);
}
-static void do_tda9875_init(struct i2c_client *client)
+static void do_tda9875_init(struct v4l2_subdev *sd)
{
- struct tda9875 *t = i2c_get_clientdata(client);
- dprintk("In tda9875_init\n");
- tda9875_write(client, TDA9875_CFG, 0xd0 ); /*reg de config 0 (reset)*/
- tda9875_write(client, TDA9875_MSR, 0x03 ); /* Monitor 0b00000XXX*/
- tda9875_write(client, TDA9875_C1MSB, 0x00 ); /*Car1(FM) MSB XMHz*/
- tda9875_write(client, TDA9875_C1MIB, 0x00 ); /*Car1(FM) MIB XMHz*/
- tda9875_write(client, TDA9875_C1LSB, 0x00 ); /*Car1(FM) LSB XMHz*/
- tda9875_write(client, TDA9875_C2MSB, 0x00 ); /*Car2(NICAM) MSB XMHz*/
- tda9875_write(client, TDA9875_C2MIB, 0x00 ); /*Car2(NICAM) MIB XMHz*/
- tda9875_write(client, TDA9875_C2LSB, 0x00 ); /*Car2(NICAM) LSB XMHz*/
- tda9875_write(client, TDA9875_DCR, 0x00 ); /*Demod config 0x00*/
- tda9875_write(client, TDA9875_DEEM, 0x44 ); /*DE-Emph 0b0100 0100*/
- tda9875_write(client, TDA9875_FMAT, 0x00 ); /*FM Matrix reg 0x00*/
- tda9875_write(client, TDA9875_SC1, 0x00 ); /* SCART 1 (SC1)*/
- tda9875_write(client, TDA9875_SC2, 0x01 ); /* SCART 2 (sc2)*/
-
- tda9875_write(client, TDA9875_CH1V, 0x10 ); /* Channel volume 1 mute*/
- tda9875_write(client, TDA9875_CH2V, 0x10 ); /* Channel volume 2 mute */
- tda9875_write(client, TDA9875_DACOS, 0x02 ); /* sig DAC i/o(in:nicam)*/
- tda9875_write(client, TDA9875_ADCIS, 0x6f ); /* sig ADC input(in:mono)*/
- tda9875_write(client, TDA9875_LOSR, 0x00 ); /* line out (in:mono)*/
- tda9875_write(client, TDA9875_AER, 0x00 ); /*06 Effect (AVL+PSEUDO) */
- tda9875_write(client, TDA9875_MCS, 0x44 ); /* Main ch select (DAC) */
- tda9875_write(client, TDA9875_MVL, 0x03 ); /* Vol Main left 10dB */
- tda9875_write(client, TDA9875_MVR, 0x03 ); /* Vol Main right 10dB*/
- tda9875_write(client, TDA9875_MBA, 0x00 ); /* Main Bass Main 0dB*/
- tda9875_write(client, TDA9875_MTR, 0x00 ); /* Main Treble Main 0dB*/
- tda9875_write(client, TDA9875_ACS, 0x44 ); /* Aux chan select (dac)*/
- tda9875_write(client, TDA9875_AVL, 0x00 ); /* Vol Aux left 0dB*/
- tda9875_write(client, TDA9875_AVR, 0x00 ); /* Vol Aux right 0dB*/
- tda9875_write(client, TDA9875_ABA, 0x00 ); /* Aux Bass Main 0dB*/
- tda9875_write(client, TDA9875_ATR, 0x00 ); /* Aux Aigus Main 0dB*/
-
- tda9875_write(client, TDA9875_MUT, 0xcc ); /* General mute */
-
- t->mode=AUDIO_UNMUTE;
- t->lvol=t->rvol =0; /* 0dB */
- t->bass=0; /* 0dB */
- t->treble=0; /* 0dB */
- tda9875_set(client);
-
+ struct tda9875 *t = to_state(sd);
+
+ v4l2_dbg(1, debug, sd, "In tda9875_init\n");
+ tda9875_write(sd, TDA9875_CFG, 0xd0); /*reg de config 0 (reset)*/
+ tda9875_write(sd, TDA9875_MSR, 0x03); /* Monitor 0b00000XXX*/
+ tda9875_write(sd, TDA9875_C1MSB, 0x00); /*Car1(FM) MSB XMHz*/
+ tda9875_write(sd, TDA9875_C1MIB, 0x00); /*Car1(FM) MIB XMHz*/
+ tda9875_write(sd, TDA9875_C1LSB, 0x00); /*Car1(FM) LSB XMHz*/
+ tda9875_write(sd, TDA9875_C2MSB, 0x00); /*Car2(NICAM) MSB XMHz*/
+ tda9875_write(sd, TDA9875_C2MIB, 0x00); /*Car2(NICAM) MIB XMHz*/
+ tda9875_write(sd, TDA9875_C2LSB, 0x00); /*Car2(NICAM) LSB XMHz*/
+ tda9875_write(sd, TDA9875_DCR, 0x00); /*Demod config 0x00*/
+ tda9875_write(sd, TDA9875_DEEM, 0x44); /*DE-Emph 0b0100 0100*/
+ tda9875_write(sd, TDA9875_FMAT, 0x00); /*FM Matrix reg 0x00*/
+ tda9875_write(sd, TDA9875_SC1, 0x00); /* SCART 1 (SC1)*/
+ tda9875_write(sd, TDA9875_SC2, 0x01); /* SCART 2 (sc2)*/
+
+ tda9875_write(sd, TDA9875_CH1V, 0x10); /* Channel volume 1 mute*/
+ tda9875_write(sd, TDA9875_CH2V, 0x10); /* Channel volume 2 mute */
+ tda9875_write(sd, TDA9875_DACOS, 0x02); /* sig DAC i/o(in:nicam)*/
+ tda9875_write(sd, TDA9875_ADCIS, 0x6f); /* sig ADC input(in:mono)*/
+ tda9875_write(sd, TDA9875_LOSR, 0x00); /* line out (in:mono)*/
+ tda9875_write(sd, TDA9875_AER, 0x00); /*06 Effect (AVL+PSEUDO) */
+ tda9875_write(sd, TDA9875_MCS, 0x44); /* Main ch select (DAC) */
+ tda9875_write(sd, TDA9875_MVL, 0x03); /* Vol Main left 10dB */
+ tda9875_write(sd, TDA9875_MVR, 0x03); /* Vol Main right 10dB*/
+ tda9875_write(sd, TDA9875_MBA, 0x00); /* Main Bass Main 0dB*/
+ tda9875_write(sd, TDA9875_MTR, 0x00); /* Main Treble Main 0dB*/
+ tda9875_write(sd, TDA9875_ACS, 0x44); /* Aux chan select (dac)*/
+ tda9875_write(sd, TDA9875_AVL, 0x00); /* Vol Aux left 0dB*/
+ tda9875_write(sd, TDA9875_AVR, 0x00); /* Vol Aux right 0dB*/
+ tda9875_write(sd, TDA9875_ABA, 0x00); /* Aux Bass Main 0dB*/
+ tda9875_write(sd, TDA9875_ATR, 0x00); /* Aux Aigus Main 0dB*/
+
+ tda9875_write(sd, TDA9875_MUT, 0xcc); /* General mute */
+
+ t->lvol = t->rvol = 0; /* 0dB */
+ t->bass = 0; /* 0dB */
+ t->treble = 0; /* 0dB */
+ tda9875_set(sd);
}
-/* *********************** *
- * i2c interface functions *
- * *********************** */
-
-static int tda9875_checkit(struct i2c_adapter *adap, int addr)
+static int tda9875_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
- int dic,rev;
+ struct tda9875 *t = to_state(sd);
- dic=i2c_read_register(adap,addr,254);
- rev=i2c_read_register(adap,addr,255);
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_VOLUME:
+ {
+ int left = (t->lvol+84)*606;
+ int right = (t->rvol+84)*606;
- if(dic==0 || dic==2) { // tda9875 and tda9875A
- printk("tda9875: TDA9875%s Rev.%d detected at 0x%x\n",
- dic==0?"":"A", rev,addr<<1);
- return 1;
+ ctrl->value=max(left,right);
+ return 0;
}
- printk("tda9875: no such chip at 0x%x (dic=0x%x rev=0x%x)\n",addr<<1,dic,rev);
- return(0);
-}
-
-static int tda9875_attach(struct i2c_adapter *adap, int addr, int kind)
-{
- struct tda9875 *t;
- struct i2c_client *client;
- dprintk("In tda9875_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);
-
- if(!tda9875_checkit(adap,addr)) {
- kfree(t);
- return 1;
+ case V4L2_CID_AUDIO_BALANCE:
+ {
+ int left = (t->lvol+84)*606;
+ int right = (t->rvol+84)*606;
+ int volume = max(left,right);
+ int balance = (32768*min(left,right))/
+ (volume ? volume : 1);
+ ctrl->value=(left<right)?
+ (65535-balance) : balance;
+ return 0;
}
-
- do_tda9875_init(client);
- printk(KERN_INFO "tda9875: init\n");
-
- i2c_attach_client(client);
- return 0;
-}
-
-static int tda9875_probe(struct i2c_adapter *adap)
-{
-#ifdef I2C_CLASS_TV_ANALOG
- if (adap->class & I2C_CLASS_TV_ANALOG)
- return i2c_probe(adap, &addr_data, tda9875_attach);
-#else
- if (adap->id == I2C_HW_B_BT848)
- return i2c_probe(adap, &addr_data, tda9875_attach);
-#endif
- return 0;
+ case V4L2_CID_AUDIO_BASS:
+ ctrl->value = (t->bass+12)*2427; /* min -12 max +15 */
+ return 0;
+ case V4L2_CID_AUDIO_TREBLE:
+ ctrl->value = (t->treble+12)*2730;/* min -12 max +12 */
+ return 0;
+ }
+ return -EINVAL;
}
-static int tda9875_detach(struct i2c_client *client)
+static int tda9875_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
- struct tda9875 *t = i2c_get_clientdata(client);
-
- do_tda9875_init(client);
- i2c_detach_client(client);
+ struct tda9875 *t = to_state(sd);
+ int chvol = 0, volume = 0, balance = 0, left, right;
- kfree(t);
- return 0;
-}
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_VOLUME:
+ left = (t->lvol+84)*606;
+ right = (t->rvol+84)*606;
-static int tda9875_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
-{
- struct tda9875 *t = i2c_get_clientdata(client);
+ volume = max(left,right);
+ balance = (32768*min(left,right))/
+ (volume ? volume : 1);
+ balance =(left<right)?
+ (65535-balance) : balance;
- dprintk("In tda9875_command...\n");
+ volume = ctrl->value;
- switch (cmd) {
- /* --- v4l ioctls --- */
- /* take care: bttv does userspace copying, we'll get a
- kernel pointer here... */
- case VIDIOCGAUDIO:
- {
- struct video_audio *va = arg;
- int left,right;
+ chvol=1;
+ break;
+ case V4L2_CID_AUDIO_BALANCE:
+ left = (t->lvol+84)*606;
+ right = (t->rvol+84)*606;
- dprintk("VIDIOCGAUDIO\n");
+ volume=max(left,right);
- va->flags |= VIDEO_AUDIO_VOLUME |
- VIDEO_AUDIO_BASS |
- VIDEO_AUDIO_TREBLE;
+ balance = ctrl->value;
- /* min is -84 max is 24 */
- left = (t->lvol+84)*606;
- right = (t->rvol+84)*606;
- va->volume=max(left,right);
- va->balance=(32768*min(left,right))/
- (va->volume ? va->volume : 1);
- va->balance=(left<right)?
- (65535-va->balance) : va->balance;
- va->bass = (t->bass+12)*2427; /* min -12 max +15 */
- va->treble = (t->treble+12)*2730;/* min -12 max +12 */
- va->mode |= VIDEO_SOUND_MONO;
-
- break; /* VIDIOCGAUDIO case */
+ chvol=1;
+ break;
+ case V4L2_CID_AUDIO_BASS:
+ t->bass = ((ctrl->value/2400)-12) & 0xff;
+ if (t->bass > 15)
+ t->bass = 15;
+ if (t->bass < -12)
+ t->bass = -12 & 0xff;
+ break;
+ case V4L2_CID_AUDIO_TREBLE:
+ t->treble = ((ctrl->value/2700)-12) & 0xff;
+ if (t->treble > 12)
+ t->treble = 12;
+ if (t->treble < -12)
+ t->treble = -12 & 0xff;
+ break;
+ default:
+ return -EINVAL;
}
- case VIDIOCSAUDIO:
- {
- struct video_audio *va = arg;
- int left,right;
-
- dprintk("VIDEOCSAUDIO...\n");
- left = (min(65536 - va->balance,32768) *
- va->volume) / 32768;
- right = (min(va->balance,(__u16)32768) *
- va->volume) / 32768;
+ if (chvol) {
+ left = (min(65536 - balance,32768) *
+ volume) / 32768;
+ right = (min(balance,32768) *
+ volume) / 32768;
t->lvol = ((left/606)-84) & 0xff;
if (t->lvol > 24)
- t->lvol = 24;
+ t->lvol = 24;
if (t->lvol < -84)
- t->lvol = -84 & 0xff;
+ t->lvol = -84 & 0xff;
t->rvol = ((right/606)-84) & 0xff;
if (t->rvol > 24)
- t->rvol = 24;
+ t->rvol = 24;
if (t->rvol < -84)
- t->rvol = -84 & 0xff;
-
- t->bass = ((va->bass/2400)-12) & 0xff;
- if (t->bass > 15)
- t->bass = 15;
- if (t->bass < -12)
- t->bass = -12 & 0xff;
-
- t->treble = ((va->treble/2700)-12) & 0xff;
- if (t->treble > 12)
- t->treble = 12;
- if (t->treble < -12)
- t->treble = -12 & 0xff;
+ t->rvol = -84 & 0xff;
+ }
+ tda9875_set(sd);
+ return 0;
+}
+static int tda9875_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_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
+ return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
+ }
+ return -EINVAL;
+}
-//printk("tda9875 bal:%04x vol:%04x bass:%04x treble:%04x\n",va->balance,va->volume,va->bass,va->treble);
+/* ----------------------------------------------------------------------- */
+static const struct v4l2_subdev_core_ops tda9875_core_ops = {
+ .queryctrl = tda9875_queryctrl,
+ .g_ctrl = tda9875_g_ctrl,
+ .s_ctrl = tda9875_s_ctrl,
+};
- tda9875_set(client);
+static const struct v4l2_subdev_ops tda9875_ops = {
+ .core = &tda9875_core_ops,
+};
- break;
+/* ----------------------------------------------------------------------- */
- } /* end of VIDEOCSAUDIO case */
- default: /* Not VIDEOCGAUDIO or VIDEOCSAUDIO */
+/* *********************** *
+ * i2c interface functions *
+ * *********************** */
- /* nothing */
- dprintk("Default\n");
+static int tda9875_checkit(struct i2c_client *client, int addr)
+{
+ int dic, rev;
- } /* end of (cmd) switch */
+ dic = i2c_read_register(client, addr, 254);
+ rev = i2c_read_register(client, addr, 255);
+ if (dic == 0 || dic == 2) { /* tda9875 and tda9875A */
+ v4l_info(client, "tda9875%s rev. %d detected at 0x%02x\n",
+ dic == 0 ? "" : "A", rev, addr << 1);
+ return 1;
+ }
+ v4l_info(client, "no such chip at 0x%02x (dic=0x%x rev=0x%x)\n",
+ addr << 1, dic, rev);
return 0;
}
+static int tda9875_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tda9875 *t;
+ struct v4l2_subdev *sd;
-static struct i2c_driver driver = {
- .owner = THIS_MODULE,
- .name = "i2c tda9875 driver",
- .id = I2C_DRIVERID_TDA9875,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = tda9875_probe,
- .detach_client = tda9875_detach,
- .command = tda9875_command,
-};
+ v4l_info(client, "chip found @ 0x%02x (%s)\n",
+ client->addr << 1, client->adapter->name);
-static struct i2c_client client_template =
-{
- .name = "tda9875",
- .driver = &driver,
-};
+ if (!tda9875_checkit(client, client->addr))
+ return -ENODEV;
-static int __init tda9875_init(void)
-{
- return i2c_add_driver(&driver);
+ t = kzalloc(sizeof(*t), GFP_KERNEL);
+ if (!t)
+ return -ENOMEM;
+ sd = &t->sd;
+ v4l2_i2c_subdev_init(sd, client, &tda9875_ops);
+
+ do_tda9875_init(sd);
+ return 0;
}
-static void __exit tda9875_fini(void)
+static int tda9875_remove(struct i2c_client *client)
{
- i2c_del_driver(&driver);
-}
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
-module_init(tda9875_init);
-module_exit(tda9875_fini);
+ do_tda9875_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 tda9875_id[] = {
+ { "tda9875", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tda9875_id);
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "tda9875",
+ .probe = tda9875_probe,
+ .remove = tda9875_remove,
+ .id_table = tda9875_id,
+};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff