V4L/DVB (5314): Added support for tda827x tuners with preamlifiers

This patch contains
- new tuning code for the tda827xa silicon tuner.
- controls the preamplifier of some boards with this tuner.
- support for the Philips Tiger S hybrid DVB-T reference design.
- reworked the saa7134-dvb modulue to get rid of most of the
  small board specific functions.

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

Documentation/video4linux/CARDLIST.saa7134

@@ -107,3 +107,4 @@
 106 -> Encore ENLTV                             [1131:2342,1131:2341,3016:2344]
 107 -> Encore ENLTV-FM                          [1131:230f]
 108 -> Terratec Cinergy HT PCI                  [153b:1175]
+109 -> Philips Tiger - S Reference design

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

@@ -2543,10 +2543,10 @@ struct saa7134_board saa7134_boards[] = {
 		.name           = "Philips Tiger reference design",
 		.audio_clock    = 0x00187de7,
 		.tuner_type     = TUNER_PHILIPS_TDA8290,
-		.tuner_config   = 0,
 		.radio_type     = UNSET,
 		.tuner_addr	= ADDR_UNSET,
 		.radio_addr	= ADDR_UNSET,
+		.tuner_config   = 0,
 		.mpeg           = SAA7134_MPEG_DVB,
 		.gpiomask       = 0x0200000,
 		.inputs = {{
@@ -2625,7 +2625,7 @@ struct saa7134_board saa7134_boards[] = {
 		}},
 		.radio = {
 			.name   = name_radio,
-			.amux   = LINE1,
+			.amux   = TV,
 			.gpio   = 0x0200000,
 		},
 	},
@@ -3044,6 +3044,7 @@ struct saa7134_board saa7134_boards[] = {
 		.radio_type     = UNSET,
 		.tuner_addr     = ADDR_UNSET,
 		.radio_addr     = ADDR_UNSET,
+		.tuner_config   = 1,
 		.mpeg           = SAA7134_MPEG_DVB,
 		.gpiomask       = 0x000200000,
 		.inputs         = {{
@@ -3290,6 +3291,36 @@ struct saa7134_board saa7134_boards[] = {
 			.amux   = LINE1,
 		}},
 	},
+	[SAA7134_BOARD_PHILIPS_TIGER_S] = {
+		.name           = "Philips Tiger - S Reference design",
+		.audio_clock    = 0x00187de7,
+		.tuner_type     = TUNER_PHILIPS_TDA8290,
+		.radio_type     = UNSET,
+		.tuner_addr	= ADDR_UNSET,
+		.radio_addr	= ADDR_UNSET,
+		.tuner_config   = 2,
+		.mpeg           = SAA7134_MPEG_DVB,
+		.gpiomask       = 0x0200000,
+		.inputs = {{
+			.name   = name_tv,
+			.vmux   = 1,
+			.amux   = TV,
+			.tv     = 1,
+		},{
+			.name   = name_comp1,
+			.vmux   = 3,
+			.amux   = LINE1,
+		},{
+			.name   = name_svideo,
+			.vmux   = 8,
+			.amux   = LINE1,
+		}},
+		.radio = {
+			.name   = name_radio,
+			.amux   = TV,
+			.gpio   = 0x0200000,
+		},
+	},
 };
 
 const unsigned int saa7134_bcount = ARRAY_SIZE(saa7134_boards);
@@ -4104,8 +4135,8 @@ int saa7134_board_init1(struct saa7134_dev *dev)
 		break;
 	case SAA7134_BOARD_ADS_DUO_CARDBUS_PTV331:
 	case SAA7134_BOARD_FLYDVBT_HYBRID_CARDBUS:
-		saa_writeb(SAA7134_GPIO_GPMODE3, 0x08);
-		saa_writeb(SAA7134_GPIO_GPSTATUS3, 0x00);
+		saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x08000000, 0x08000000);
+		saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x08000000, 0x00000000);
 		break;
 	case SAA7134_BOARD_AVERMEDIA_CARDBUS:
 		/* power-up tuner chip */
@@ -4168,6 +4199,8 @@ 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);
 		}
@@ -4235,6 +4268,8 @@ 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);
 		}
@@ -4254,11 +4289,36 @@ 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);
 		}
 		break;
 	case SAA7134_BOARD_PHILIPS_TIGER:
+	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;
+			printk(KERN_INFO "%s: Reconfigured board as %s\n",
+				dev->name, saa7134_boards[dev->board].name);
+		}
+		if(dev->board == SAA7134_BOARD_PHILIPS_TIGER_S) {
+			tun_setup.mode_mask = T_ANALOG_TV | T_DIGITAL_TV;
+			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;
+		}
+		i2c_transfer(&dev->i2c_adap, &msg, 1);
+		}
+		break;
 	case SAA7134_BOARD_PINNACLE_PCTV_310i:
 	case SAA7134_BOARD_TEVION_DVBT_220RF:
 	case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
@@ -4268,7 +4328,7 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 		 * and configure firmware eeprom address
 		 */
 		{
-		u8 data[] = { 0x3c, 0x33, 0x68};
+		u8 data[] = { 0x3c, 0x33, 0x60};
 		struct i2c_msg msg = {.addr=0x08, .flags=0, .buf=data, .len = sizeof(data)};
 		i2c_transfer(&dev->i2c_adap, &msg, 1);
 		}
@@ -4282,18 +4342,18 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 		break;
 	case SAA7134_BOARD_ADS_DUO_CARDBUS_PTV331:
 	case SAA7134_BOARD_FLYDVBT_HYBRID_CARDBUS:
-		/* make the tda10046 find its eeprom */
+		/* initialize analog mode  */
 		{
-		u8 data[] = { 0x3c, 0x33, 0x62};
+		u8 data[] = { 0x3c, 0x33, 0x6a};
 		struct i2c_msg msg = {.addr=0x08, .flags=0, .buf=data, .len = sizeof(data)};
 		i2c_transfer(&dev->i2c_adap, &msg, 1);
 		}
 		break;
 	case SAA7134_BOARD_CINERGY_HT_PCMCIA:
 	case SAA7134_BOARD_CINERGY_HT_PCI:
-		/* make the tda10046 find its eeprom */
+		/* initialize analog mode */
 		{
-		u8 data[] = { 0x3c, 0x33, 0x60};
+		u8 data[] = { 0x3c, 0x33, 0x68};
 		struct i2c_msg msg = {.addr=0x08, .flags=0, .buf=data, .len = sizeof(data)};
 		i2c_transfer(&dev->i2c_adap, &msg, 1);
 		}

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

@@ -1205,6 +1205,7 @@ module_exit(saa7134_fini);
 
 /* ----------------------------------------------------------- */
 
+EXPORT_SYMBOL(saa7134_set_gpio);
 EXPORT_SYMBOL(saa7134_i2c_call_clients);
 EXPORT_SYMBOL(saa7134_devlist);
 EXPORT_SYMBOL(saa7134_boards);

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

@@ -603,7 +603,14 @@ static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
 	saa_writeb(SAA7134_RAW_DATA_GAIN,         0x40);
 	saa_writeb(SAA7134_RAW_DATA_OFFSET,       0x80);
 
-	saa7134_i2c_call_clients(dev,VIDIOC_S_STD,&norm->id);
+	/* only tell the tuner if this is a tv input */
+	if (card_in(dev,dev->ctl_input).tv) {
+		if ((card(dev).tuner_type == TUNER_PHILIPS_TDA8290)
+				&& ((card(dev).tuner_config == 1)
+				||  (card(dev).tuner_config == 2)))
+			saa7134_set_gpio(dev, 22, 5);
+		saa7134_i2c_call_clients(dev,VIDIOC_S_STD,&norm->id);
+	}
 }
 
 static void video_mux(struct saa7134_dev *dev, int input)

drivers/media/video/saa7134/saa7134.h

@@ -231,6 +231,7 @@ struct saa7134_format {
 #define SAA7134_BOARD_ENCORE_ENLTV         106
 #define SAA7134_BOARD_ENCORE_ENLTV_FM      107
 #define SAA7134_BOARD_CINERGY_HT_PCI       108
+#define SAA7134_BOARD_PHILIPS_TIGER_S      109
 
 #define SAA7134_MAXBOARDS 8
 #define SAA7134_INPUT_MAX 8

drivers/media/video/tda8290.c

@@ -192,14 +192,52 @@ static struct tda827xa_data tda827xa_analog[] = {
 	{ .lomax =     0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}   /* End */
 };
 
+static void tda827xa_lna_gain(struct i2c_client *c, int high)
+{
+	struct tuner *t = i2c_get_clientdata(c);
+	unsigned char buf[] = {0x22, 0x01};
+	int arg;
+	struct i2c_msg msg = {.addr = c->addr, .flags = 0, .buf = buf, .len = sizeof(buf)};
+	if (t->config) {
+		if (high)
+			tuner_dbg("setting LNA to high gain\n");
+		else
+			tuner_dbg("setting LNA to low gain\n");
+	}
+	switch (t->config) {
+	case 0: /* no LNA */
+		break;
+	case 1: /* switch is GPIO 0 of tda8290 */
+	case 2:
+		/* turn Vsync on */
+		if (t->std & V4L2_STD_MN)
+			arg = 5;
+		else
+			arg = 4;
+		if (t->gpio_func)
+			t->gpio_func(c->adapter->algo_data, 22, 5);
+		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);
+		break;
+	}
+}
+
 static void tda827xa_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
 {
-	unsigned char tuner_reg[14];
-	unsigned char reg2[2];
+	unsigned char tuner_reg[11];
 	u32 N;
 	int i;
 	struct tuner *t = i2c_get_clientdata(c);
-	struct i2c_msg msg = {.addr = t->tda827x_addr, .flags = 0};
+	struct i2c_msg msg = {.addr = t->tda827x_addr, .flags = 0, .buf = tuner_reg};
+
+	tda827xa_lna_gain( c, 1);
+	msleep(10);
 
 	if (t->mode == V4L2_TUNER_RADIO)
 		freq = freq / 1000;
@@ -222,48 +260,58 @@ static void tda827xa_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
 	tuner_reg[5] = (tda827xa_analog[i].spd << 5) + (tda827xa_analog[i].svco << 3) +
 			tda827xa_analog[i].sbs;
 	tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
-	tuner_reg[7] = 0x0c;
+	tuner_reg[7] = 0x1c;
 	tuner_reg[8] = 4;
 	tuner_reg[9] = 0x20;
-	tuner_reg[10] = 0xff;
-	tuner_reg[11] = 0xe0;
-	tuner_reg[12] = 0;
-	tuner_reg[13] = 0x39 + (t->tda827x_lpsel << 1);
+	tuner_reg[10] = 0x00;
+	msg.len = 11;
+	i2c_transfer(c->adapter, &msg, 1);
 
-	msg.buf = tuner_reg;
-	msg.len = 14;
+	tuner_reg[0] = 0x90;
+	tuner_reg[1] = 0xff;
+	tuner_reg[2] = 0xe0;
+	tuner_reg[3] = 0;
+	tuner_reg[4] = 0x99 + (t->tda827x_lpsel << 1);
+	msg.len = 5;
 	i2c_transfer(c->adapter, &msg, 1);
 
-	msg.buf= reg2;
+	tuner_reg[0] = 0xa0;
+	tuner_reg[1] = 0xc0;
 	msg.len = 2;
-	reg2[0] = 0x60;
-	reg2[1] = 0x3c;
 	i2c_transfer(c->adapter, &msg, 1);
 
-	reg2[0] = 0xa0;
-	reg2[1] = 0xc0;
+	tuner_reg[0] = 0x30;
+	tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
 	i2c_transfer(c->adapter, &msg, 1);
 
-	msleep(2);
-	reg2[0] = 0x30;
-	reg2[1] = 0x10 + tda827xa_analog[i].scr;
+	msg.flags = I2C_M_RD;
+	i2c_transfer(c->adapter, &msg, 1);
+	msg.flags = 0;
+	tuner_reg[1] >>= 4;
+	tuner_dbg("AGC2 gain is: %d\n", tuner_reg[1]);
+	if (tuner_reg[1] < 1)
+		tda827xa_lna_gain( c, 0);
+
+	msleep(100);
+	tuner_reg[0] = 0x60;
+	tuner_reg[1] = 0x3c;
 	i2c_transfer(c->adapter, &msg, 1);
 
-	msleep(550);
-	reg2[0] = 0x50;
-	reg2[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
+	msleep(163);
+	tuner_reg[0] = 0x50;
+	tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
 	i2c_transfer(c->adapter, &msg, 1);
 
-	reg2[0] = 0x80;
-	reg2[1] = 0x28;
+	tuner_reg[0] = 0x80;
+	tuner_reg[1] = 0x28;
 	i2c_transfer(c->adapter, &msg, 1);
 
-	reg2[0] = 0xb0;
-	reg2[1] = 0x01;
+	tuner_reg[0] = 0xb0;
+	tuner_reg[1] = 0x01;
 	i2c_transfer(c->adapter, &msg, 1);
 
-	reg2[0] = 0xc0;
-	reg2[1] = 0x19 + (t->tda827x_lpsel << 1);
+	tuner_reg[0] = 0xc0;
+	tuner_reg[1] = 0x19 + (t->tda827x_lpsel << 1);
 	i2c_transfer(c->adapter, &msg, 1);
 }
 
@@ -319,7 +367,9 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
 	unsigned char addr_pll_stat = 0x1b;
 	unsigned char adc_sat, agc_stat,
 		      pll_stat;
+	int i;
 
+	tuner_dbg("tda827xa config is 0x%02x\n", t->config);
 	i2c_master_send(c, easy_mode, 2);
 	i2c_master_send(c, agc_out_on, 2);
 	i2c_master_send(c, soft_reset, 2);
@@ -340,17 +390,22 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
 		tda827xa_tune(c, ifc, freq);
 	else
 		tda827x_tune(c, ifc, freq);
+	for (i = 0; i < 3; i++) {
+		i2c_master_send(c, &addr_pll_stat, 1);
+		i2c_master_recv(c, &pll_stat, 1);
+		if (pll_stat & 0x80) {
+			i2c_master_send(c, &addr_adc_sat, 1);
+			i2c_master_recv(c, &adc_sat, 1);
+			i2c_master_send(c, &addr_agc_stat, 1);
+			i2c_master_recv(c, &agc_stat, 1);
+			tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat);
+			break;
+		} else {
+			tuner_dbg("tda8290 not locked, no signal?\n");
+			msleep(100);
+		}
+	}
 	/* adjust headroom resp. gain */
-	i2c_master_send(c, &addr_adc_sat, 1);
-	i2c_master_recv(c, &adc_sat, 1);
-	i2c_master_send(c, &addr_agc_stat, 1);
-	i2c_master_recv(c, &agc_stat, 1);
-	i2c_master_send(c, &addr_pll_stat, 1);
-	i2c_master_recv(c, &pll_stat, 1);
-	if (pll_stat & 0x80)
-		tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat);
-	else
-		tuner_dbg("tda8290 not locked, no signal?\n");
 	if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) {
 		tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n",
 			   agc_stat, adc_sat, pll_stat & 0x80);
@@ -487,11 +542,16 @@ static void standby(struct i2c_client *c)
 
 static void tda8290_init_if(struct i2c_client *c)
 {
+	struct tuner *t = i2c_get_clientdata(c);
 	unsigned char set_VS[] = { 0x30, 0x6F };
+	unsigned char set_GP00_CF[] = { 0x20, 0x01 };
 	unsigned char set_GP01_CF[] = { 0x20, 0x0B };
 
+	if ((t->config == 1) || (t->config == 2))
+		i2c_master_send(c, set_GP00_CF, 2);
+	else
+		i2c_master_send(c, set_GP01_CF, 2);
 	i2c_master_send(c, set_VS, 2);
-	i2c_master_send(c, set_GP01_CF, 2);
 }
 
 static void tda8290_init_tuner(struct i2c_client *c)