- add PowerOnSensor() virtual,

- Add Or/And reg helpers.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31626 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/media/media-add-ons/usb_webcam/CamDevice.cpp

@@ -305,6 +305,13 @@ CamDevice::Lock()
 }
 
 
+status_t
+CamDevice::PowerOnSensor(bool on)
+{
+	return B_OK;
+}
+
+
 ssize_t
 CamDevice::WriteReg(uint16 address, uint8 *data, size_t count)
 {
@@ -337,6 +344,29 @@ CamDevice::ReadReg(uint16 address, uint8 *data, size_t count, bool cached)
 }
 
 
+ssize_t
+CamDevice::OrReg8(uint16 address, uint8 data, uint8 mask)
+{
+	uint8 value;
+	if (ReadReg(address, &value, 1, true) < 1)
+		return EIO;
+	value &= mask;
+	value |= data;
+	return WriteReg8(address, value);
+}
+
+
+ssize_t
+CamDevice::AndReg8(uint16 address, uint8 data)
+{
+	uint8 value;
+	if (ReadReg(address, &value, 1, true) < 1)
+		return EIO;
+	value &= data;
+	return WriteReg8(address, value);
+}
+
+
 /*
 status_t
 CamDevice::GetStatusIIC()

src/add-ons/media/media-add-ons/usb_webcam/CamDevice.h

@@ -91,11 +91,16 @@ class CamDevice {
 	// sensor chip handling
 	CamSensor*			Sensor() const { return fSensor; };
 
+	virtual status_t	PowerOnSensor(bool on);
+
 	// generic register-like access
 	virtual ssize_t		WriteReg(uint16 address, uint8 *data, size_t count=1);
 	virtual ssize_t		WriteReg8(uint16 address, uint8 data);
 	virtual ssize_t		WriteReg16(uint16 address, uint16 data);
 	virtual ssize_t		ReadReg(uint16 address, uint8 *data, size_t count=1, bool cached=false);
+
+	ssize_t				OrReg8(uint16 address, uint8 data, uint8 mask=0xff);
+	ssize_t				AndReg8(uint16 address, uint8 data);
 	
 	// I2C-like access
 	//virtual status_t	GetStatusIIC();