V4L/DVB (6127): tuner: kill i2c_client interface to tuner sub-drivers

To ease the conversion of the analog tuner sub-drivers into dvb_frontend
style tuner modules, we must remove the i2c_client interface.

dvb_frontend style tuner modules use i2c_transfer directly on the i2c_adapter.

This change only alters the interface between tuner.ko and the tuner
sub-drivers. The v4l2 / i2c_client interface to tuner.ko remains intact.

This patch adds inline functions tuner_i2c_xfer_send, and tuner_i2c_xfer_recv,
to replace i2c_master_send and i2c_master_recv inside the tuner sub-drivers.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Mike Isely <isely@pobox.com>
Acked-by: Steven Toth <stoth@hauppauge.com>
Acked-by: Patrick Boettcher <pb@linuxtv.org>
Acked-by: Jarod Wilson <jwilson@redhat.com>
Acked-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/tda9887.c

@@ -29,6 +29,8 @@
 			i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
 
 struct tda9887_priv {
+	struct tuner_i2c_props i2c_props;
+
 	unsigned char 	   data[4];
 };
 
@@ -510,19 +512,19 @@ static int tda9887_set_config(struct tuner *t, char *buf)
 
 static int tda9887_status(struct tuner *t)
 {
+	struct tda9887_priv *priv = t->priv;
 	unsigned char buf[1];
 	int rc;
 
 	memset(buf,0,sizeof(buf));
-	if (1 != (rc = i2c_master_recv(&t->i2c,buf,1)))
+	if (1 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props,buf,1)))
 		tda9887_info("i2c i/o error: rc == %d (should be 1)\n",rc);
 	dump_read_message(t, buf);
 	return 0;
 }
 
-static void tda9887_configure(struct i2c_client *client)
+static void tda9887_configure(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(client);
 	struct tda9887_priv *priv = t->priv;
 	int rc;
 
@@ -557,7 +559,7 @@ static void tda9887_configure(struct i2c_client *client)
 	if (tuner_debug > 1)
 		dump_write_message(t, priv->data);
 
-	if (4 != (rc = i2c_master_send(&t->i2c,priv->data,4)))
+	if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,priv->data,4)))
 		tda9887_info("i2c i/o error: rc == %d (should be 4)\n",rc);
 
 	if (tuner_debug > 2) {
@@ -568,16 +570,15 @@ static void tda9887_configure(struct i2c_client *client)
 
 /* ---------------------------------------------------------------------- */
 
-static void tda9887_tuner_status(struct i2c_client *client)
+static void tda9887_tuner_status(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(client);
 	struct tda9887_priv *priv = t->priv;
 	tda9887_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n", priv->data[1], priv->data[2], priv->data[3]);
 }
 
-static int tda9887_get_afc(struct i2c_client *client)
+static int tda9887_get_afc(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(client);
+	struct tda9887_priv *priv = t->priv;
 	static int AFC_BITS_2_kHz[] = {
 		-12500,  -37500,  -62500,  -97500,
 		-112500, -137500, -162500, -187500,
@@ -587,26 +588,24 @@ static int tda9887_get_afc(struct i2c_client *client)
 	int afc=0;
 	__u8 reg = 0;
 
-	if (1 == i2c_master_recv(&t->i2c,&reg,1))
+	if (1 == tuner_i2c_xfer_recv(&priv->i2c_props,&reg,1))
 		afc = AFC_BITS_2_kHz[(reg>>1)&0x0f];
 
 	return afc;
 }
 
-static void tda9887_standby(struct i2c_client *client)
+static void tda9887_standby(struct tuner *t)
 {
-	tda9887_configure(client);
+	tda9887_configure(t);
 }
 
-static void tda9887_set_freq(struct i2c_client *client, unsigned int freq)
+static void tda9887_set_freq(struct tuner *t, unsigned int freq)
 {
-	tda9887_configure(client);
+	tda9887_configure(t);
 }
 
-static void tda9887_release(struct i2c_client *c)
+static void tda9887_release(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(c);
-
 	kfree(t->priv);
 	t->priv = NULL;
 }
@@ -620,17 +619,19 @@ static struct tuner_operations tda9887_tuner_ops = {
 	.release        = tda9887_release,
 };
 
-int tda9887_tuner_init(struct i2c_client *c)
+int tda9887_tuner_init(struct tuner *t)
 {
 	struct tda9887_priv *priv = NULL;
-	struct tuner *t = i2c_get_clientdata(c);
 
 	priv = kzalloc(sizeof(struct tda9887_priv), GFP_KERNEL);
 	if (priv == NULL)
 		return -ENOMEM;
 	t->priv = priv;
 
-	strlcpy(c->name, "tda9887", sizeof(c->name));
+	priv->i2c_props.addr = t->i2c.addr;
+	priv->i2c_props.adap = t->i2c.adapter;
+
+	strlcpy(t->i2c.name, "tda9887", sizeof(t->i2c.name));
 
 	tda9887_info("tda988[5/6/7] found @ 0x%x (%s)\n", t->i2c.addr,
 						t->i2c.driver->driver.name);

drivers/media/video/tea5761.c

@@ -18,6 +18,10 @@
 /* from tuner-core.c */
 extern int tuner_debug;
 
+struct tea5761_priv {
+	struct tuner_i2c_props i2c_props;
+};
+
 /*****************************************************************************/
 
 /***************************
@@ -114,10 +118,8 @@ extern int tuner_debug;
 
 /*****************************************************************************/
 
-static void set_tv_freq(struct i2c_client *c, unsigned int freq)
+static void set_tv_freq(struct tuner *t, unsigned int freq)
 {
-	struct tuner *t = i2c_get_clientdata(c);
-
 	tuner_warn("This tuner doesn't support TV freq.\n");
 }
 
@@ -135,9 +137,9 @@ static void tea5761_status_dump(unsigned char *buffer)
 }
 
 /* Freq should be specifyed at 62.5 Hz */
-static void set_radio_freq(struct i2c_client *c, unsigned int frq)
+static void set_radio_freq(struct tuner *t, unsigned int frq)
 {
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5761_priv *priv = t->priv;
 	unsigned char buffer[7] = {0, 0, 0, 0, 0, 0, 0 };
 	unsigned div;
 	int rc;
@@ -167,31 +169,31 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq)
 	if (tuner_debug)
 		tea5761_status_dump(buffer);
 
-	if (7 != (rc = i2c_master_send(c, buffer, 7)))
+	if (7 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 7)))
 		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
 }
 
-static int tea5761_signal(struct i2c_client *c)
+static int tea5761_signal(struct tuner *t)
 {
 	unsigned char buffer[16];
 	int rc;
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5761_priv *priv = t->priv;
 
 	memset(buffer, 0, sizeof(buffer));
-	if (16 != (rc = i2c_master_recv(c, buffer, 16)))
+	if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16)))
 		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
 
 	return ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4));
 }
 
-static int tea5761_stereo(struct i2c_client *c)
+static int tea5761_stereo(struct tuner *t)
 {
 	unsigned char buffer[16];
 	int rc;
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5761_priv *priv = t->priv;
 
 	memset(buffer, 0, sizeof(buffer));
-	if (16 != (rc = i2c_master_recv(c, buffer, 16)))
+	if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16)))
 		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
 
 	rc = buffer[9] & TEA5761_TUNCHECK_STEREO;
@@ -201,13 +203,13 @@ static int tea5761_stereo(struct i2c_client *c)
 	return (rc ? V4L2_TUNER_SUB_STEREO : 0);
 }
 
-int tea5761_autodetection(struct i2c_client *c)
+int tea5761_autodetection(struct tuner *t)
 {
 	unsigned char buffer[16];
 	int rc;
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tuner_i2c_props i2c = { .adap = t->i2c.adapter, .addr = t->i2c.addr };
 
-	if (16 != (rc = i2c_master_recv(c, buffer, 16))) {
+	if (16 != (rc = tuner_i2c_xfer_recv(&i2c, buffer, 16))) {
 		tuner_warn("it is not a TEA5761. Received %i chars.\n", rc);
 		return EINVAL;
 	}
@@ -220,22 +222,37 @@ int tea5761_autodetection(struct i2c_client *c)
 	return 0;
 }
 
+static void tea5761_release(struct tuner *t)
+{
+	kfree(t->priv);
+	t->priv = NULL;
+}
+
 static struct tuner_operations tea5761_tuner_ops = {
 	.set_tv_freq    = set_tv_freq,
 	.set_radio_freq = set_radio_freq,
 	.has_signal     = tea5761_signal,
 	.is_stereo      = tea5761_stereo,
+	.release        = tea5761_release,
 };
 
-int tea5761_tuner_init(struct i2c_client *c)
+int tea5761_tuner_init(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5761_priv *priv = NULL;
 
-	if (tea5761_autodetection(c) == EINVAL)
+	if (tea5761_autodetection(t) == EINVAL)
 		return EINVAL;
 
+	priv = kzalloc(sizeof(struct tea5761_priv), GFP_KERNEL);
+	if (priv == NULL)
+		return -ENOMEM;
+	t->priv = priv;
+
+	priv->i2c_props.addr = t->i2c.addr;
+	priv->i2c_props.adap = t->i2c.adapter;
+
 	tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5761HN FM Radio");
-	strlcpy(c->name, "tea5761", sizeof(c->name));
+	strlcpy(t->i2c.name, "tea5761", sizeof(t->i2c.name));
 
 	memcpy(&t->ops, &tea5761_tuner_ops, sizeof(struct tuner_operations));
 

drivers/media/video/tea5767.c

@@ -20,6 +20,10 @@
 /* from tuner-core.c */
 extern int tuner_debug;
 
+struct tea5767_priv {
+	struct tuner_i2c_props i2c_props;
+};
+
 /*****************************************************************************/
 
 /******************************
@@ -129,10 +133,8 @@ enum tea5767_xtal_freq {
 
 /*****************************************************************************/
 
-static void set_tv_freq(struct i2c_client *c, unsigned int freq)
+static void set_tv_freq(struct tuner *t, unsigned int freq)
 {
-	struct tuner *t = i2c_get_clientdata(c);
-
 	tuner_warn("This tuner doesn't support TV freq.\n");
 }
 
@@ -190,9 +192,9 @@ static void tea5767_status_dump(unsigned char *buffer)
 }
 
 /* Freq should be specifyed at 62.5 Hz */
-static void set_radio_freq(struct i2c_client *c, unsigned int frq)
+static void set_radio_freq(struct tuner *t, unsigned int frq)
 {
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5767_priv *priv = t->priv;
 	unsigned char buffer[5];
 	unsigned div;
 	int rc;
@@ -246,38 +248,38 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq)
 	buffer[0] = (div >> 8) & 0x3f;
 	buffer[1] = div & 0xff;
 
-	if (5 != (rc = i2c_master_send(c, buffer, 5)))
+	if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
 		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
 
 	if (tuner_debug) {
-		if (5 != (rc = i2c_master_recv(c, buffer, 5)))
+		if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
 			tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
 		else
 			tea5767_status_dump(buffer);
 	}
 }
 
-static int tea5767_signal(struct i2c_client *c)
+static int tea5767_signal(struct tuner *t)
 {
 	unsigned char buffer[5];
 	int rc;
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5767_priv *priv = t->priv;
 
 	memset(buffer, 0, sizeof(buffer));
-	if (5 != (rc = i2c_master_recv(c, buffer, 5)))
+	if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
 		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
 
 	return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8);
 }
 
-static int tea5767_stereo(struct i2c_client *c)
+static int tea5767_stereo(struct tuner *t)
 {
 	unsigned char buffer[5];
 	int rc;
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5767_priv *priv = t->priv;
 
 	memset(buffer, 0, sizeof(buffer));
-	if (5 != (rc = i2c_master_recv(c, buffer, 5)))
+	if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
 		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
 
 	rc = buffer[2] & TEA5767_STEREO_MASK;
@@ -287,10 +289,10 @@ static int tea5767_stereo(struct i2c_client *c)
 	return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0);
 }
 
-static void tea5767_standby(struct i2c_client *c)
+static void tea5767_standby(struct tuner *t)
 {
 	unsigned char buffer[5];
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5767_priv *priv = t->priv;
 	unsigned div, rc;
 
 	div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */
@@ -301,17 +303,17 @@ static void tea5767_standby(struct i2c_client *c)
 		    TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND | TEA5767_STDBY;
 	buffer[4] = 0;
 
-	if (5 != (rc = i2c_master_send(c, buffer, 5)))
+	if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
 		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
 }
 
-int tea5767_autodetection(struct i2c_client *c)
+int tea5767_autodetection(struct tuner *t)
 {
+	struct tuner_i2c_props i2c = { .adap = t->i2c.adapter, .addr = t->i2c.addr };
 	unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 	int rc;
-	struct tuner *t = i2c_get_clientdata(c);
 
-	if ((rc = i2c_master_recv(c, buffer, 7))< 5) {
+	if ((rc = tuner_i2c_xfer_send(&i2c, buffer, 7))< 5) {
 		tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc);
 		return EINVAL;
 	}
@@ -343,20 +345,35 @@ int tea5767_autodetection(struct i2c_client *c)
 	return 0;
 }
 
+static void tea5767_release(struct tuner *t)
+{
+	kfree(t->priv);
+	t->priv = NULL;
+}
+
 static struct tuner_operations tea5767_tuner_ops = {
 	.set_tv_freq    = set_tv_freq,
 	.set_radio_freq = set_radio_freq,
 	.has_signal     = tea5767_signal,
 	.is_stereo      = tea5767_stereo,
 	.standby        = tea5767_standby,
+	.release        = tea5767_release,
 };
 
-int tea5767_tuner_init(struct i2c_client *c)
+int tea5767_tuner_init(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(c);
+	struct tea5767_priv *priv = NULL;
+
+	priv = kzalloc(sizeof(struct tea5767_priv), GFP_KERNEL);
+	if (priv == NULL)
+		return -ENOMEM;
+	t->priv = priv;
+
+	priv->i2c_props.addr = t->i2c.addr;
+	priv->i2c_props.adap = t->i2c.adapter;
 
 	tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio");
-	strlcpy(c->name, "tea5767", sizeof(c->name));
+	strlcpy(t->i2c.name, "tea5767", sizeof(t->i2c.name));
 
 	memcpy(&t->ops, &tea5767_tuner_ops, sizeof(struct tuner_operations));
 

drivers/media/video/tuner-core.c

@@ -94,7 +94,7 @@ static void set_tv_freq(struct i2c_client *c, unsigned int freq)
 		else
 			freq = tv_range[1] * 16;
 	}
-	t->ops.set_tv_freq(c, freq);
+	t->ops.set_tv_freq(t, freq);
 }
 
 static void set_radio_freq(struct i2c_client *c, unsigned int freq)
@@ -121,7 +121,7 @@ static void set_radio_freq(struct i2c_client *c, unsigned int freq)
 			freq = radio_range[1] * 16000;
 	}
 
-	t->ops.set_radio_freq(c, freq);
+	t->ops.set_radio_freq(t, freq);
 }
 
 static void set_freq(struct i2c_client *c, unsigned long freq)
@@ -199,7 +199,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
 
 	/* discard private data, in case set_type() was previously called */
 	if (t->ops.release)
-		t->ops.release(c);
+		t->ops.release(t);
 	else {
 		kfree(t->priv);
 		t->priv = NULL;
@@ -207,13 +207,13 @@ static void set_type(struct i2c_client *c, unsigned int type,
 
 	switch (t->type) {
 	case TUNER_MT2032:
-		microtune_init(c);
+		microtune_init(t);
 		break;
 	case TUNER_PHILIPS_TDA8290:
-		tda8290_init(c);
+		tda8290_init(t);
 		break;
 	case TUNER_TEA5767:
-		if (tea5767_tuner_init(c) == EINVAL) {
+		if (tea5767_tuner_init(t) == EINVAL) {
 			t->type = TUNER_ABSENT;
 			t->mode_mask = T_UNINITIALIZED;
 			return;
@@ -222,7 +222,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
 		break;
 #ifdef CONFIG_TUNER_TEA5761
 	case TUNER_TEA5761:
-		if (tea5761_tuner_init(c) == EINVAL) {
+		if (tea5761_tuner_init(t) == EINVAL) {
 			t->type = TUNER_ABSENT;
 			t->mode_mask = T_UNINITIALIZED;
 			return;
@@ -240,7 +240,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
 		buffer[2] = 0x86;
 		buffer[3] = 0x54;
 		i2c_master_send(c, buffer, 4);
-		default_tuner_init(c);
+		default_tuner_init(t);
 		break;
 	case TUNER_PHILIPS_TD1316:
 		buffer[0] = 0x0b;
@@ -248,13 +248,13 @@ static void set_type(struct i2c_client *c, unsigned int type,
 		buffer[2] = 0x86;
 		buffer[3] = 0xa4;
 		i2c_master_send(c,buffer,4);
-		default_tuner_init(c);
+		default_tuner_init(t);
 		break;
 	case TUNER_TDA9887:
-		tda9887_tuner_init(c);
+		tda9887_tuner_init(t);
 		break;
 	default:
-		default_tuner_init(c);
+		default_tuner_init(t);
 		break;
 	}
 
@@ -426,9 +426,8 @@ static int tuner_fixup_std(struct tuner *t)
 	return 0;
 }
 
-static void tuner_status(struct i2c_client *client)
+static void tuner_status(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(client);
 	unsigned long freq, freq_fraction;
 	const char *p;
 
@@ -451,10 +450,10 @@ static void tuner_status(struct i2c_client *client)
 	if (t->mode != V4L2_TUNER_RADIO)
 	       return;
 	if (t->ops.has_signal) {
-		tuner_info("Signal strength: %d\n", t->ops.has_signal(client));
+		tuner_info("Signal strength: %d\n", t->ops.has_signal(t));
 	}
 	if (t->ops.is_stereo) {
-		tuner_info("Stereo:          %s\n", t->ops.is_stereo(client) ? "yes" : "no");
+		tuner_info("Stereo:          %s\n", t->ops.is_stereo(t) ? "yes" : "no");
 	}
 }
 
@@ -503,7 +502,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
 		switch (addr) {
 #ifdef CONFIG_TUNER_TEA5761
 		case 0x10:
-			if (tea5761_autodetection(&t->i2c) != EINVAL) {
+			if (tea5761_autodetection(t) != EINVAL) {
 				t->type = TUNER_TEA5761;
 				t->mode_mask = T_RADIO;
 				t->mode = T_STANDBY;
@@ -520,7 +519,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
 		case 0x4b:
 			/* If chip is not tda8290, don't register.
 			   since it can be tda9887*/
-			if (tda8290_probe(&t->i2c) == 0) {
+			if (tda8290_probe(t) == 0) {
 				tuner_dbg("chip at addr %x is a tda8290\n", addr);
 			} else {
 				/* Default is being tda9887 */
@@ -531,7 +530,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
 			}
 			break;
 		case 0x60:
-			if (tea5767_autodetection(&t->i2c) != EINVAL) {
+			if (tea5767_autodetection(t) != EINVAL) {
 				t->type = TUNER_TEA5767;
 				t->mode_mask = T_RADIO;
 				t->mode = T_STANDBY;
@@ -588,7 +587,7 @@ static int tuner_detach(struct i2c_client *client)
 	}
 
 	if (t->ops.release)
-		t->ops.release(client);
+		t->ops.release(t);
 	else {
 		kfree(t->priv);
 	}
@@ -613,7 +612,7 @@ static inline int set_mode(struct i2c_client *client, struct tuner *t, int mode,
 	if (check_mode(t, cmd) == EINVAL) {
 		t->mode = T_STANDBY;
 		if (t->ops.standby)
-			t->ops.standby (client);
+			t->ops.standby(t);
 		return EINVAL;
 	}
 	return 0;
@@ -662,7 +661,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 			return 0;
 		t->mode = T_STANDBY;
 		if (t->ops.standby)
-			t->ops.standby (client);
+			t->ops.standby(t);
 		break;
 #ifdef CONFIG_VIDEO_V4L1
 	case VIDIOCSAUDIO:
@@ -722,9 +721,9 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
 			if (V4L2_TUNER_RADIO == t->mode) {
 				if (t->ops.has_signal)
-					vt->signal = t->ops.has_signal(client);
+					vt->signal = t->ops.has_signal(t);
 				if (t->ops.is_stereo) {
-					if (t->ops.is_stereo(client))
+					if (t->ops.is_stereo(t))
 						vt->flags |=
 						    VIDEO_TUNER_STEREO_ON;
 					else
@@ -753,7 +752,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 				return 0;
 
 			if (V4L2_TUNER_RADIO == t->mode && t->ops.is_stereo)
-				va->mode = t->ops.is_stereo(client)
+				va->mode = t->ops.is_stereo(t)
 				    ? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO;
 			return 0;
 		}
@@ -819,7 +818,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
 			tuner->type = t->mode;
 			if (t->ops.get_afc)
-				tuner->afc=t->ops.get_afc(client);
+				tuner->afc=t->ops.get_afc(t);
 			if (t->mode == V4L2_TUNER_ANALOG_TV)
 				tuner->capability |= V4L2_TUNER_CAP_NORM;
 			if (t->mode != V4L2_TUNER_RADIO) {
@@ -830,12 +829,12 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
 			/* radio mode */
 			if (t->ops.has_signal)
-				tuner->signal = t->ops.has_signal(client);
+				tuner->signal = t->ops.has_signal(t);
 
 			tuner->rxsubchans =
 				V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
 			if (t->ops.is_stereo) {
-				tuner->rxsubchans = t->ops.is_stereo(client) ?
+				tuner->rxsubchans = t->ops.is_stereo(t) ?
 					V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
 			}
 
@@ -864,7 +863,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 		}
 	case VIDIOC_LOG_STATUS:
 		if (t->ops.tuner_status)
-			t->ops.tuner_status(client);
+			t->ops.tuner_status(t);
 		break;
 	}
 

drivers/media/video/tuner-driver.h

@@ -24,18 +24,21 @@
 
 #include <linux/videodev2.h>
 #include <linux/i2c.h>
+#include "tuner-i2c.h"
 
 extern unsigned const int tuner_count;
 
+struct tuner;
+
 struct tuner_operations {
-	void (*set_tv_freq)(struct i2c_client *c, unsigned int freq);
-	void (*set_radio_freq)(struct i2c_client *c, unsigned int freq);
-	int  (*has_signal)(struct i2c_client *c);
-	int  (*is_stereo)(struct i2c_client *c);
-	int  (*get_afc)(struct i2c_client *c);
-	void (*tuner_status)(struct i2c_client *c);
-	void (*standby)(struct i2c_client *c);
-	void (*release)(struct i2c_client *c);
+	void (*set_tv_freq)(struct tuner *t, unsigned int freq);
+	void (*set_radio_freq)(struct tuner *t, unsigned int freq);
+	int  (*has_signal)(struct tuner *t);
+	int  (*is_stereo)(struct tuner *t);
+	int  (*get_afc)(struct tuner *t);
+	void (*tuner_status)(struct tuner *t);
+	void (*standby)(struct tuner *t);
+	void (*release)(struct tuner *t);
 };
 
 struct tuner {
@@ -66,20 +69,20 @@ struct tuner {
 
 /* ------------------------------------------------------------------------ */
 
-extern int default_tuner_init(struct i2c_client *c);
+extern int default_tuner_init(struct tuner *t);
 
-extern int tda9887_tuner_init(struct i2c_client *c);
+extern int tda9887_tuner_init(struct tuner *t);
 
-extern int microtune_init(struct i2c_client *c);
+extern int microtune_init(struct tuner *t);
 
-extern int tda8290_init(struct i2c_client *c);
-extern int tda8290_probe(struct i2c_client *c);
+extern int tda8290_init(struct tuner *t);
+extern int tda8290_probe(struct tuner *t);
 
-extern int tea5761_tuner_init(struct i2c_client *c);
-extern int tea5761_autodetection(struct i2c_client *c);
+extern int tea5761_tuner_init(struct tuner *t);
+extern int tea5761_autodetection(struct tuner *t);
 
-extern int tea5767_autodetection(struct i2c_client *c);
-extern int tea5767_tuner_init(struct i2c_client *c);
+extern int tea5767_autodetection(struct tuner *t);
+extern int tea5767_tuner_init(struct tuner *t);
 
 /* ------------------------------------------------------------------------ */
 

drivers/media/video/tuner-i2c.h

+/*
+    tuner-i2c.h - i2c interface for different tuners
+
+    Copyright (C) 2007 Michael Krufky (mkrufky@linuxtv.org)
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef __TUNER_I2C_H__
+#define __TUNER_I2C_H__
+
+#include <linux/i2c.h>
+
+struct tuner_i2c_props {
+	u8 addr;
+	struct i2c_adapter *adap;
+};
+
+static inline int tuner_i2c_xfer_send(struct tuner_i2c_props *props, char *buf, int len)
+{
+	struct i2c_msg msg = { .addr = props->addr, .flags = 0,
+			       .buf = buf, .len = len };
+	int ret = i2c_transfer(props->adap, &msg, 1);
+
+	return (ret == 1) ? len : ret;
+}
+
+static inline int tuner_i2c_xfer_recv(struct tuner_i2c_props *props, char *buf, int len)
+{
+	struct i2c_msg msg = { .addr = props->addr, .flags = I2C_M_RD,
+			       .buf = buf, .len = len };
+	int ret = i2c_transfer(props->adap, &msg, 1);
+
+	return (ret == 1) ? len : ret;
+}
+
+#ifndef __TUNER_DRIVER_H__
+#define tuner_warn(fmt, arg...) do {\
+	printk(KERN_WARNING PREFIX "%d-%04x: " fmt, \
+			i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr , ##arg); } while (0)
+#define tuner_info(fmt, arg...) do {\
+	printk(KERN_INFO PREFIX "%d-%04x: " fmt, \
+			i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr , ##arg); } while (0)
+#define tuner_dbg(fmt, arg...) do {\
+	if ((debug)) \
+		printk(KERN_DEBUG PREFIX "%d-%04x: " fmt, \
+			i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr , ##arg); } while (0)
+#endif /* __TUNER_DRIVER_H__ */
+
+#endif /* __TUNER_I2C_H__ */
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/video/tuner-simple.c

@@ -84,31 +84,32 @@ MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
 
 struct tuner_simple_priv {
 	u16 last_div;
+	struct tuner_i2c_props i2c_props;
 };
 
 /* ---------------------------------------------------------------------- */
 
-static int tuner_getstatus(struct i2c_client *c)
+static int tuner_getstatus(struct tuner *t)
 {
+	struct tuner_simple_priv *priv = t->priv;
 	unsigned char byte;
 
-	if (1 != i2c_master_recv(c,&byte,1))
+	if (1 != tuner_i2c_xfer_recv(&priv->i2c_props,&byte,1))
 		return 0;
 
 	return byte;
 }
 
-static int tuner_signal(struct i2c_client *c)
+static int tuner_signal(struct tuner *t)
 {
-	return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
+	return (tuner_getstatus(t) & TUNER_SIGNAL) << 13;
 }
 
-static int tuner_stereo(struct i2c_client *c)
+static int tuner_stereo(struct tuner *t)
 {
 	int stereo, status;
-	struct tuner *t = i2c_get_clientdata(c);
 
-	status = tuner_getstatus (c);
+	status = tuner_getstatus(t);
 
 	switch (t->type) {
 		case TUNER_PHILIPS_FM1216ME_MK3:
@@ -127,9 +128,8 @@ static int tuner_stereo(struct i2c_client *c)
 
 /* ---------------------------------------------------------------------- */
 
-static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
+static void default_set_tv_freq(struct tuner *t, unsigned int freq)
 {
-	struct tuner *t = i2c_get_clientdata(c);
 	struct tuner_simple_priv *priv = t->priv;
 	u8 config, cb, tuneraddr;
 	u16 div;
@@ -285,13 +285,13 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
 			buffer[1] = 0x04;
 		}
 		/* set to the correct mode (analog or digital) */
-		tuneraddr = c->addr;
-		c->addr = 0x0a;
-		if (2 != (rc = i2c_master_send(c,&buffer[0],2)))
+		tuneraddr = priv->i2c_props.addr;
+		priv->i2c_props.addr = 0x0a;
+		if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,&buffer[0],2)))
 			tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
-		if (2 != (rc = i2c_master_send(c,&buffer[2],2)))
+		if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,&buffer[2],2)))
 			tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
-		c->addr = tuneraddr;
+		priv->i2c_props.addr = tuneraddr;
 		/* FIXME: input */
 		break;
 	}
@@ -345,12 +345,12 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
 		}
 		if (params->default_pll_gating_18)
 			config |= TDA9887_GATING_18;
-		i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
+		i2c_clients_command(priv->i2c_props.adap, TDA9887_SET_CONFIG, &config);
 	}
 	tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 		  buffer[0],buffer[1],buffer[2],buffer[3]);
 
-	if (4 != (rc = i2c_master_send(c,buffer,4)))
+	if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
 		tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
 
 	switch (t->type) {
@@ -362,7 +362,7 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
 		buffer[1] = 0x20;
 		tuner_dbg("tv 0x%02x 0x%02x\n",buffer[0],buffer[1]);
 
-		if (2 != (rc = i2c_master_send(c,buffer,2)))
+		if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,2)))
 			tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
 		break;
 	case TUNER_MICROTUNE_4042FI5:
@@ -375,7 +375,7 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
 		for (;;) {
 			if (time_after(jiffies,timeout))
 				return;
-			if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
+			if (1 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props,&status_byte,1))) {
 				tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
 				break;
 			}
@@ -393,17 +393,16 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
 		tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 			  buffer[0],buffer[1],buffer[2],buffer[3]);
 
-		if (4 != (rc = i2c_master_send(c,buffer,4)))
+		if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
 			tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
 		break;
 	}
 	}
 }
 
-static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
+static void default_set_radio_freq(struct tuner *t, unsigned int freq)
 {
 	struct tunertype *tun;
-	struct tuner *t = i2c_get_clientdata(c);
 	struct tuner_simple_priv *priv = t->priv;
 	u8 buffer[4];
 	u16 div;
@@ -498,16 +497,14 @@ static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
 			config |= TDA9887_GAIN_NORMAL;
 		if (params->radio_if == 2)
 			config |= TDA9887_RIF_41_3;
-		i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
+		i2c_clients_command(priv->i2c_props.adap, TDA9887_SET_CONFIG, &config);
 	}
-	if (4 != (rc = i2c_master_send(c,buffer,4)))
+	if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
 		tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
 }
 
-static void tuner_release(struct i2c_client *c)
+static void tuner_release(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(c);
-
 	kfree(t->priv);
 	t->priv = NULL;
 }
@@ -520,9 +517,8 @@ static struct tuner_operations simple_tuner_ops = {
 	.release        = tuner_release,
 };
 
-int default_tuner_init(struct i2c_client *c)
+int default_tuner_init(struct tuner *t)
 {
-	struct tuner *t = i2c_get_clientdata(c);
 	struct tuner_simple_priv *priv = NULL;
 
 	priv = kzalloc(sizeof(struct tuner_simple_priv), GFP_KERNEL);
@@ -530,9 +526,12 @@ int default_tuner_init(struct i2c_client *c)
 		return -ENOMEM;
 	t->priv = priv;
 
+	priv->i2c_props.addr = t->i2c.addr;
+	priv->i2c_props.adap = t->i2c.adapter;
+
 	tuner_info("type set to %d (%s)\n",
 		   t->type, tuners[t->type].name);
-	strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
+	strlcpy(t->i2c.name, tuners[t->type].name, sizeof(t->i2c.name));
 
 	memcpy(&t->ops, &simple_tuner_ops, sizeof(struct tuner_operations));