[media] Add DVB support for SAA7134_BOARD_KWORLD_PCI_SBTVD_FULLSEG

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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

@@ -5179,12 +5179,23 @@ struct saa7134_board saa7134_boards[] = {
 	[SAA7134_BOARD_KWORLD_PCI_SBTVD_FULLSEG] = {
 		.name           = "Kworld PCI SBTVD/ISDB-T Full-Seg Hybrid",
 		.audio_clock    = 0x00187de7,
+#if 0
+	/*
+	 * FIXME: Analog mode doesn't work, if digital is enabled. The proper
+	 * fix is to use tda8290 driver, but Kworld seems to use an
+	 * unsupported version of tda8295.
+	 */
 		.tuner_type     = TUNER_NXP_TDA18271,	/* TUNER_PHILIPS_TDA8290 */
-		.radio_type     = UNSET,
 		.tuner_addr     = 0x60,
+#else
+		.tuner_type     = UNSET,
+		.tuner_addr     = ADDR_UNSET,
+#endif
+		.radio_type     = UNSET,
 		.radio_addr	= ADDR_UNSET,
 		.gpiomask       = 0x8e054000,
 		.mpeg           = SAA7134_MPEG_DVB,
+		.ts_type	= SAA7134_MPEG_TS_PARALLEL,
 		.inputs = { {
 			.name   = name_tv,
 			.vmux   = 1,
@@ -7623,16 +7634,6 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 			{0x45, 0x97},
 			{0x45, 0xc1},
 		};
-
-		saa_writel(SAA7134_GPIO_GPMODE0 >> 2, 0x0000);
-		saa_writel(SAA7134_GPIO_GPSTATUS0 >> 2, 0x0000);
-		saa_writel(SAA7134_GPIO_GPMODE0 >> 2, 0x0000);
-		saa_writel(SAA7134_GPIO_GPMODE0 >> 2, 0x4000);
-		saa_writel(SAA7134_GPIO_GPSTATUS0 >> 2, 0x0000);
-		saa_writel(SAA7134_GPIO_GPMODE0 >> 2, 0x4000);
-		saa_writel(SAA7134_GPIO_GPSTATUS0 >> 2, 0x4000);
-		saa_writel(SAA7134_GPIO_GPMODE0 >> 2, 0x4000);
-		saa_writel(SAA7134_GPIO_GPSTATUS0 >> 2, 0x0000);
 		saa_writel(SAA7134_GPIO_GPMODE0 >> 2, 0x4000);
 		saa_writel(SAA7134_GPIO_GPSTATUS0 >> 2, 0x4000);
 

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

@@ -52,6 +52,7 @@
 #include "tda18271.h"
 #include "lgdt3305.h"
 #include "tda8290.h"
+#include "mb86a20s.h"
 
 #include "zl10353.h"
 
@@ -228,6 +229,20 @@ static struct mt352_config avermedia_xc3028_mt352_dev = {
 	.demod_init      = mt352_avermedia_xc3028_init,
 };
 
+static struct tda18271_std_map mb86a20s_tda18271_std_map = {
+	.dvbt_6   = { .if_freq = 3300, .agc_mode = 3, .std = 4,
+		      .if_lvl = 7, .rfagc_top = 0x37, },
+};
+
+static struct tda18271_config kworld_tda18271_config = {
+	.std_map = &mb86a20s_tda18271_std_map,
+	.gate    = TDA18271_GATE_DIGITAL,
+};
+
+static const struct mb86a20s_config kworld_mb86a20s_config = {
+	.demod_address = 0x10,
+};
+
 /* ==================================================================
  * tda1004x based DVB-T cards, helper functions
  */
@@ -608,6 +623,37 @@ static struct tda827x_config tda827x_cfg_2_sw42 = {
 
 /* ------------------------------------------------------------------ */
 
+static int __kworld_sbtvd_i2c_gate_ctrl(struct saa7134_dev *dev, int enable)
+{
+	unsigned char initmsg[] = {0x45, 0x97};
+	unsigned char msg_enable[] = {0x45, 0xc1};
+	unsigned char msg_disable[] = {0x45, 0x81};
+	struct i2c_msg msg = {.addr = 0x4b, .flags = 0, .buf = initmsg, .len = 2};
+
+	if (i2c_transfer(&dev->i2c_adap, &msg, 1) != 1) {
+		wprintk("could not access the I2C gate\n");
+		return -EIO;
+	}
+	if (enable)
+		msg.buf = msg_enable;
+	else
+		msg.buf = msg_disable;
+	if (i2c_transfer(&dev->i2c_adap, &msg, 1) != 1) {
+		wprintk("could not access the I2C gate\n");
+		return -EIO;
+	}
+	msleep(20);
+	return 0;
+}
+static int kworld_sbtvd_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
+{
+	struct saa7134_dev *dev = fe->dvb->priv;
+
+	return __kworld_sbtvd_i2c_gate_ctrl(dev, enable);
+}
+
+/* ------------------------------------------------------------------ */
+
 static struct tda1004x_config tda827x_lifeview_config = {
 	.demod_address = 0x08,
 	.invert        = 1,
@@ -1613,6 +1659,29 @@ static int dvb_init(struct saa7134_dev *dev)
 				   &dtv1000s_tda18271_config);
 		}
 		break;
+	case SAA7134_BOARD_KWORLD_PCI_SBTVD_FULLSEG:
+		__kworld_sbtvd_i2c_gate_ctrl(dev, 0);
+		saa_writel(SAA7134_GPIO_GPMODE0 >> 2, 0x14000);
+		saa_writel(SAA7134_GPIO_GPSTATUS0 >> 2, 0x14000);
+		msleep(20);
+		saa_writel(SAA7134_GPIO_GPMODE0 >> 2, 0x54000);
+		saa_writel(SAA7134_GPIO_GPSTATUS0 >> 2, 0x54000);
+		msleep(20);
+		fe0->dvb.frontend = dvb_attach(mb86a20s_attach,
+					       &kworld_mb86a20s_config,
+					       &dev->i2c_adap);
+		__kworld_sbtvd_i2c_gate_ctrl(dev, 1);
+		if (fe0->dvb.frontend != NULL) {
+			dvb_attach(tda18271_attach, fe0->dvb.frontend,
+				   0x60, &dev->i2c_adap,
+				   &kworld_tda18271_config);
+			/*
+			 * Only after success, it can initialize the gate, otherwise
+			 * an OOPS will hit, due to kfree(fe0->dvb.frontend)
+			 */
+			fe0->dvb.frontend->ops.i2c_gate_ctrl = kworld_sbtvd_i2c_gate_ctrl;
+		}
+		break;
 	default:
 		wprintk("Huh? unknown DVB card?\n");
 		break;