From: Michael Krufky <mkrufky@kernellabs.com>
Date: Sat, 9 May 2009 01:39:24 +0000 (-0300)
Subject: V4L/DVB (12165): cx23885: override set_frontend to allow rf input path switching... 
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f35b9e8039c04f0cb9fe3a051ce941b1524a8798;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

V4L/DVB (12165): cx23885: override set_frontend to allow rf input path switching on the HVR1275

Use separate RF input spigots for Antennae and Cable.

Reviewed-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c
index 48a975134ac5..a851a81e257e 100644
--- a/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/drivers/media/video/cx23885/cx23885-dvb.c
@@ -463,6 +463,30 @@ static struct xc5000_config mygica_x8506_xc5000_config = {
 	.if_khz = 5380,
 };
 
+static int cx23885_dvb_set_frontend(struct dvb_frontend *fe,
+				    struct dvb_frontend_parameters *param)
+{
+	struct cx23885_tsport *port = fe->dvb->priv;
+	struct cx23885_dev *dev = port->dev;
+
+	switch (dev->board) {
+	case CX23885_BOARD_HAUPPAUGE_HVR1275:
+		switch (param->u.vsb.modulation) {
+		case VSB_8:
+			cx23885_gpio_clear(dev, GPIO_5);
+			break;
+		case QAM_64:
+		case QAM_256:
+		default:
+			cx23885_gpio_set(dev, GPIO_5);
+			break;
+		}
+		break;
+	}
+	return (port->set_frontend_save) ?
+		port->set_frontend_save(fe, param) : -ENODEV;
+}
+
 static int dvb_register(struct cx23885_tsport *port)
 {
 	struct cx23885_dev *dev = port->dev;
@@ -502,6 +526,11 @@ static int dvb_register(struct cx23885_tsport *port)
 				   0x60, &dev->i2c_bus[1].i2c_adap,
 				   &hauppauge_hvr127x_config);
 		}
+
+		/* define bridge override to set_frontend */
+		port->set_frontend_save = fe0->dvb.frontend->ops.set_frontend;
+		fe0->dvb.frontend->ops.set_frontend = cx23885_dvb_set_frontend;
+
 		break;
 	case CX23885_BOARD_HAUPPAUGE_HVR1255:
 		i2c_bus = &dev->i2c_bus[0];
diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h
index 1a2ac518a3f1..f4e22b0af7d2 100644
--- a/drivers/media/video/cx23885/cx23885.h
+++ b/drivers/media/video/cx23885/cx23885.h
@@ -288,6 +288,8 @@ struct cx23885_tsport {
 	/* Allow a single tsport to have multiple frontends */
 	u32                        num_frontends;
 	void                       *port_priv;
+	int (*set_frontend_save) (struct dvb_frontend *,
+				  struct dvb_frontend_parameters *);
 };
 
 struct cx23885_dev {