updated support for tuner callbacks

From: Hartmut Hackmann <hartmut.hackmann@t-online.de>

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>

4 files changed, 28 insertions, 19 deletions

diff --git a/linux/drivers/media/video/saa7134/saa7134-cards.c b/linux/drivers/media/video/saa7134/saa7134-cards.c
index 1d59e9353..818318e9f 100644
--- a/linux/drivers/media/video/saa7134/saa7134-cards.c
+++ b/linux/drivers/media/video/saa7134/saa7134-cards.c
@@ -4262,6 +4262,9 @@ 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:
@@ -4278,20 +4281,15 @@ 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;
@@ -4352,8 +4350,6 @@ 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);
 		}
@@ -4365,7 +4361,6 @@ 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);
@@ -4373,8 +4368,6 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 		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);
 		}
@@ -4383,7 +4376,6 @@ 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;
@@ -4395,7 +4387,6 @@ 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;
diff --git a/linux/drivers/media/video/saa7134/saa7134-core.c b/linux/drivers/media/video/saa7134/saa7134-core.c
index 180b1f854..0195b3597 100644
--- a/linux/drivers/media/video/saa7134/saa7134-core.c
+++ b/linux/drivers/media/video/saa7134/saa7134-core.c
@@ -140,7 +140,6 @@ 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) {
@@ -160,22 +159,40 @@ 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;
 }
 
 /* ------------------------------------------------------------------ */
diff --git a/linux/drivers/media/video/saa7134/saa7134-i2c.c b/linux/drivers/media/video/saa7134/saa7134-i2c.c
index 4664f7c4f..de88ef0ee 100644
--- a/linux/drivers/media/video/saa7134/saa7134-i2c.c
+++ b/linux/drivers/media/video/saa7134/saa7134-i2c.c
@@ -385,7 +385,7 @@ 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)) {
 
diff --git a/linux/drivers/media/video/saa7134/saa7134.h b/linux/drivers/media/video/saa7134/saa7134.h
index 16e780930..9742d318b 100644
--- a/linux/drivers/media/video/saa7134/saa7134.h
+++ b/linux/drivers/media/video/saa7134/saa7134.h
@@ -592,6 +592,7 @@ 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