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path: root/drivers/media/video/tda9875.c
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Diffstat (limited to 'drivers/media/video/tda9875.c')
-rw-r--r--drivers/media/video/tda9875.c348
1 files changed, 151 insertions, 197 deletions
diff --git a/drivers/media/video/tda9875.c b/drivers/media/video/tda9875.c
index 792f0b079909..56f0c0eb500f 100644
--- a/drivers/media/video/tda9875.c
+++ b/drivers/media/video/tda9875.c
@@ -25,11 +25,10 @@
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
-#include <linux/videodev2.h>
-#include <media/v4l2-common.h>
#include <linux/i2c.h>
-#include <linux/init.h>
-
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-i2c-drv-legacy.h>
#include <media/i2c-addr.h>
static int debug; /* insmod parameter */
@@ -46,13 +45,15 @@ I2C_CLIENT_INSMOD;
/* This is a superset of the TDA9875 */
struct tda9875 {
+ 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
@@ -105,15 +106,16 @@ static struct i2c_client client_template;
/* 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;
}
@@ -121,7 +123,7 @@ static int tda9875_write(struct i2c_client *client, int subaddr, unsigned char v
}
-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];
@@ -129,150 +131,83 @@ static int i2c_read_register(struct i2c_adapter *adap, int addr, int reg)
{ 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->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)
-{
- int dic,rev;
-
- dic=i2c_read_register(adap,addr,254);
- rev=i2c_read_register(adap,addr,255);
-
- 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;
- }
- 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)
+static int tda9875_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
- struct tda9875 *t;
- struct i2c_client *client;
- dprintk("In tda9875_attach\n");
-
- 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);
-
- if(!tda9875_checkit(adap,addr)) {
- kfree(t);
- return 1;
- }
-
- do_tda9875_init(client);
- printk(KERN_INFO "tda9875: init\n");
-
- i2c_attach_client(client);
- return 0;
-}
-
-static int tda9875_probe(struct i2c_adapter *adap)
-{
- if (adap->class & I2C_CLASS_TV_ANALOG)
- return i2c_probe(adap, &addr_data, tda9875_attach);
- return 0;
-}
-
-static int tda9875_detach(struct i2c_client *client)
-{
- struct tda9875 *t = i2c_get_clientdata(client);
-
- do_tda9875_init(client);
- i2c_detach_client(client);
-
- kfree(t);
- return 0;
-}
-
-static int tda9875_get_ctrl(struct i2c_client *client,
- struct v4l2_control *ctrl)
-{
- struct tda9875 *t = i2c_get_clientdata(client);
+ struct tda9875 *t = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_AUDIO_VOLUME:
@@ -304,10 +239,9 @@ static int tda9875_get_ctrl(struct i2c_client *client,
return -EINVAL;
}
-static int tda9875_set_ctrl(struct i2c_client *client,
- struct v4l2_control *ctrl)
+static int tda9875_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
- struct tda9875 *t = i2c_get_clientdata(client);
+ struct tda9875 *t = to_state(sd);
int chvol=0, volume, balance, left, right;
switch (ctrl->id) {
@@ -371,85 +305,105 @@ static int tda9875_set_ctrl(struct i2c_client *client,
t->rvol = -84 & 0xff;
}
-//printk("tda9875 bal:%04x vol:%04x bass:%04x treble:%04x\n",va->balance,va->volume,va->bass,va->treble);
-
- tda9875_set(client);
-
+ tda9875_set(sd);
return 0;
}
-
-static int tda9875_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
+static int tda9875_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
- dprintk("In tda9875_command...\n");
-
- 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_VOLUME:
- case V4L2_CID_AUDIO_BASS:
- case V4L2_CID_AUDIO_TREBLE:
- default:
- return -EINVAL;
- }
+ switch (qc->id) {
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
return v4l2_ctrl_query_fill_std(qc);
}
- case VIDIOC_S_CTRL:
- return tda9875_set_ctrl(client, arg);
+ return -EINVAL;
+}
- case VIDIOC_G_CTRL:
- return tda9875_get_ctrl(client, arg);
+static int tda9875_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+ return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
- default: /* Not VIDEOCGAUDIO or VIDEOCSAUDIO */
+/* ----------------------------------------------------------------------- */
- /* nothing */
- dprintk("Default\n");
+static const struct v4l2_subdev_core_ops tda9875_core_ops = {
+ .queryctrl = tda9875_queryctrl,
+ .g_ctrl = tda9875_g_ctrl,
+ .s_ctrl = tda9875_s_ctrl,
+};
- } /* end of (cmd) switch */
+static const struct v4l2_subdev_ops tda9875_ops = {
+ .core = &tda9875_core_ops,
+};
- return 0;
-}
+/* ----------------------------------------------------------------------- */
-static struct i2c_driver driver = {
- .driver = {
- .name = "tda9875",
- },
- .id = I2C_DRIVERID_TDA9875,
- .attach_adapter = tda9875_probe,
- .detach_client = tda9875_detach,
- .command = tda9875_command,
-};
+/* *********************** *
+ * i2c interface functions *
+ * *********************** */
-static struct i2c_client client_template =
+static int tda9875_checkit(struct i2c_client *client, int addr)
{
- .name = "tda9875",
- .driver = &driver,
-};
+ int dic, rev;
-static int __init tda9875_init(void)
-{
- return i2c_add_driver(&driver);
+ 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 void __exit tda9875_fini(void)
+static int tda9875_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- i2c_del_driver(&driver);
+ struct tda9875 *t;
+ struct v4l2_subdev *sd;
+
+ v4l_info(client, "chip found @ 0x%02x (%s)\n",
+ client->addr << 1, client->adapter->name);
+
+ if (!tda9875_checkit(client, client->addr))
+ return -ENODEV;
+
+ 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;
}
-module_init(tda9875_init);
-module_exit(tda9875_fini);
+static int tda9875_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
+ do_tda9875_init(sd);
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_state(sd));
+ return 0;
+}
+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",
+ .driverid = I2C_DRIVERID_TDA9875,
+ .command = tda9875_command,
+ .probe = tda9875_probe,
+ .remove = tda9875_remove,
+ .id_table = tda9875_id,
+};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.