V4L/DVB (5323): Updated support for tuner callbacks

This change supplies a more generic version of the tuner callback.
The tuner struct now has a function pointer
  int (*tuner_callback) (void *dev, int command, int arg)
additionally to a int config parameter.
both can be set through the TUNER_SET_TYPE_ADDR client call.
Note that the meaning of the parameters depend on the tuner type.

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/saa7134/saa7134-cards.c

@@ -4185,6 +4185,9 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 {
 	unsigned char buf;
 	int board;
+	struct tuner_setup tun_setup;
+	tun_setup.config = 0;
+	tun_setup.tuner_callback = saa7134_tuner_callback;
 
 	switch (dev->board) {
 	case SAA7134_BOARD_BMK_MPEX_NOTUNER:
@@ -4201,20 +4204,15 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 		dev->tuner_type = saa7134_boards[dev->board].tuner_type;
 
 		if (TUNER_ABSENT != dev->tuner_type) {
-				struct tuner_setup tun_setup;
-
 				tun_setup.mode_mask = T_RADIO | T_ANALOG_TV | T_DIGITAL_TV;
 				tun_setup.type = dev->tuner_type;
 				tun_setup.addr = ADDR_UNSET;
-				tun_setup.config = 0;
-				tun_setup.gpio_func = NULL;
 
 				saa7134_i2c_call_clients (dev, TUNER_SET_TYPE_ADDR, &tun_setup);
 		}
 		break;
 	case SAA7134_BOARD_MD7134:
 		{
-		struct tuner_setup tun_setup;
 		u8 subaddr;
 		u8 data[3];
 		int ret, tuner_t;
@@ -4275,8 +4273,6 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 		tun_setup.mode_mask = T_RADIO | T_ANALOG_TV | T_DIGITAL_TV;
 		tun_setup.type = dev->tuner_type;
 		tun_setup.addr = ADDR_UNSET;
-		tun_setup.config = 0;
-		tun_setup.gpio_func = NULL;
 
 		saa7134_i2c_call_clients (dev, TUNER_SET_TYPE_ADDR,&tun_setup);
 		}
@@ -4288,16 +4284,13 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 		 * the channel decoder. We have to make it transparent to find it
 		 */
 		{
-		struct tuner_setup tun_setup;
 		u8 data[] = { 0x07, 0x02};
 		struct i2c_msg msg = {.addr=0x08, .flags=0, .buf=data, .len = sizeof(data)};
 		i2c_transfer(&dev->i2c_adap, &msg, 1);
 
 		tun_setup.mode_mask = T_ANALOG_TV | T_DIGITAL_TV;
 		tun_setup.type = dev->tuner_type;
 		tun_setup.addr = dev->tuner_addr;
-		tun_setup.config = 0;
-		tun_setup.gpio_func = NULL;
 
 		saa7134_i2c_call_clients (dev, TUNER_SET_TYPE_ADDR,&tun_setup);
 		}
@@ -4306,7 +4299,6 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 	case SAA7134_BOARD_PHILIPS_TIGER_S:
 		{
 		u8 data[] = { 0x3c, 0x33, 0x60};
-		struct tuner_setup tun_setup;
 		struct i2c_msg msg = {.addr=0x08, .flags=0, .buf=data, .len = sizeof(data)};
 		if(dev->autodetected && (dev->eedata[0x49] == 0x50)) {
 			dev->board = SAA7134_BOARD_PHILIPS_TIGER_S;
@@ -4318,7 +4310,6 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 			tun_setup.type = TUNER_PHILIPS_TDA8290;
 			tun_setup.addr = 0x4b;
 			tun_setup.config = 2;
-			tun_setup.gpio_func = (tuner_gpio_func_t) saa7134_set_gpio;
 
 			saa7134_i2c_call_clients (dev, TUNER_SET_TYPE_ADDR,&tun_setup);
 			data[2] = 0x68;

drivers/media/video/saa7134/saa7134-core.c

@@ -120,7 +120,6 @@ void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 {
 	u32 index, bitval;
-	u8 sync_control;
 
 	index = 1 << bit_no;
 	switch (value) {
@@ -140,22 +139,40 @@ void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 		dprintk("setting GPIO%d to tristate\n", bit_no);
 		saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 		break;
-	case 4:	/* sync output on GPIO 22 for tda8275a, 50Hz*/
-	case 5:	/* sync output on GPIO 22 for tda8275a, 60Hz*/
-		if (bit_no == 22) {
-			dprintk("setting GPIO22 to vsync %d\n", value - 4);
+	}
+}
+
+int saa7134_tuner_callback(void *ptr, int command, int arg)
+{
+	u8 sync_control;
+	struct saa7134_dev *dev = ptr;
+
+	switch (dev->tuner_type) {
+	case TUNER_PHILIPS_TDA8290:
+		switch (command) {
+		case 0: /* switch LNA gain through GPIO 22*/
+			saa7134_set_gpio(dev, 22, arg) ;
+			break;
+		case 1: /* vsync output at GPIO22. 50 / 60Hz */
+			dprintk("setting GPIO22 to vsync %d\n", arg);
 			saa_andorb(SAA7134_VIDEO_PORT_CTRL3, 0x80, 0x80);
 			saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x03);
-			if (value == 5)
+			if (arg == 1)
 				sync_control = 11;
 			else
 				sync_control = 17;
 			saa_writeb(SAA7134_VGATE_START, sync_control);
 			saa_writeb(SAA7134_VGATE_STOP, sync_control + 1);
 			saa_andorb(SAA7134_MISC_VGATE_MSB, 0x03, 0x00);
+			break;
+		default:
+			return -EINVAL;
 		}
 		break;
+	default:
+		return -ENODEV;
 	}
+	return 0;
 }
 
 /* ------------------------------------------------------------------ */

drivers/media/video/saa7134/saa7134-i2c.c

@@ -371,7 +371,7 @@ static int attach_inform(struct i2c_client *client)
 		tun_setup.type = tuner;
 		tun_setup.addr = saa7134_boards[dev->board].tuner_addr;
 		tun_setup.config = saa7134_boards[dev->board].tuner_config;
-		tun_setup.gpio_func = (tuner_gpio_func_t) saa7134_set_gpio;
+		tun_setup.tuner_callback = saa7134_tuner_callback;
 
 		if ((tun_setup.addr == ADDR_UNSET)||(tun_setup.addr == client->addr)) {
 

drivers/media/video/saa7134/saa7134.h

@@ -565,6 +565,7 @@ extern int saa7134_no_overlay;
 
 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg);
 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value);
+int saa7134_tuner_callback(void *ptr, int command, int arg);
 
 #define SAA7134_PGTABLE_SIZE 4096
 

drivers/media/video/tda8290.c

@@ -211,19 +211,19 @@ static void tda827xa_lna_gain(struct i2c_client *c, int high)
 	case 2:
 		/* turn Vsync on */
 		if (t->std & V4L2_STD_MN)
-			arg = 5;
+			arg = 1;
 		else
-			arg = 4;
-		if (t->gpio_func)
-			t->gpio_func(c->adapter->algo_data, 22, 5);
+			arg = 0;
+		if (t->tuner_callback)
+			t->tuner_callback(c->adapter->algo_data, 1, arg);
 		buf[1] = high ? 0 : 1;
 		if (t->config == 2)
 			buf[1] = high ? 1 : 0;
 		i2c_transfer(c->adapter, &msg, 1);
 		break;
 	case 3: /* switch with GPIO of saa713x */
-		if (t->gpio_func)
-			t->gpio_func(c->adapter->algo_data, 22, high);
+		if (t->tuner_callback)
+			t->tuner_callback(c->adapter->algo_data, 0, high);
 		break;
 	}
 }

drivers/media/video/tuner-core.c

@@ -145,7 +145,7 @@ static void set_freq(struct i2c_client *c, unsigned long freq)
 
 static void set_type(struct i2c_client *c, unsigned int type,
 		     unsigned int new_mode_mask, unsigned int new_config,
-		     tuner_gpio_func_t gpio_func)
+		     int (*tuner_callback) (void *dev, int command,int arg))
 {
 	struct tuner *t = i2c_get_clientdata(c);
 	unsigned char buffer[4];
@@ -169,16 +169,16 @@ static void set_type(struct i2c_client *c, unsigned int type,
 	}
 
 	t->type = type;
+	t->config = new_config;
+	if (tuner_callback != NULL) {
+		tuner_dbg("defining GPIO callback\n");
+		t->tuner_callback = tuner_callback;
+	}
 	switch (t->type) {
 	case TUNER_MT2032:
 		microtune_init(c);
 		break;
 	case TUNER_PHILIPS_TDA8290:
-		t->config = new_config;
-		if (gpio_func != NULL) {
-			tuner_dbg("Defining GPIO function\n");
-			t->gpio_func = gpio_func;
-		}
 		tda8290_init(c);
 		break;
 	case TUNER_TEA5767:
@@ -244,7 +244,7 @@ static void set_addr(struct i2c_client *c, struct tuner_setup *tun_setup)
 		(t->mode_mask & tun_setup->mode_mask))) ||
 		(tun_setup->addr == c->addr)) {
 			set_type(c, tun_setup->type, tun_setup->mode_mask,
-				 tun_setup->config, tun_setup->gpio_func);
+				 tun_setup->config, tun_setup->tuner_callback);
 	}
 }
 
@@ -503,7 +503,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
 register_client:
 	tuner_info("chip found @ 0x%x (%s)\n", addr << 1, adap->name);
 	i2c_attach_client (&t->i2c);
-	set_type (&t->i2c,t->type, t->mode_mask, t->config, t->gpio_func);
+	set_type (&t->i2c,t->type, t->mode_mask, t->config, t->tuner_callback);
 	return 0;
 }
 

include/media/tuner.h

@@ -173,15 +173,12 @@ enum tuner_mode {
    when the tuner is set to TV mode.
  */
 
-/* allows to access the GPIOs of the host (pci bridge) */
-typedef void (*tuner_gpio_func_t) (void *dev, int bit_no,int value);
-
 struct tuner_setup {
 	unsigned short	addr; 	/* I2C address */
 	unsigned int	type;   /* Tuner type */
 	unsigned int	mode_mask;  /* Allowed tuner modes */
 	unsigned int	config; /* configuraion for more complex tuners */
-	tuner_gpio_func_t gpio_func;
+	int (*tuner_callback) (void *dev, int command,int arg);
 };
 
 struct tuner {
@@ -215,8 +212,9 @@ struct tuner {
 	unsigned char tda827x_addr;
 	unsigned char tda827x_ver;
 	unsigned int sgIF;
+
 	unsigned int config;
-	tuner_gpio_func_t gpio_func;
+	int (*tuner_callback) (void *dev, int command,int arg);
 
 	/* function ptrs */
 	void (*set_tv_freq)(struct i2c_client *c, unsigned int freq);