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path: root/drivers/media/usb/dvb-usb/digitv.h
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Diffstat (limited to 'drivers/media/usb/dvb-usb/digitv.h')
-rw-r--r--drivers/media/usb/dvb-usb/digitv.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/digitv.h b/drivers/media/usb/dvb-usb/digitv.h
new file mode 100644
index 000000000..908c09f49
--- /dev/null
+++ b/drivers/media/usb/dvb-usb/digitv.h
@@ -0,0 +1,66 @@
+#ifndef _DVB_USB_DIGITV_H_
+#define _DVB_USB_DIGITV_H_
+
+#define DVB_USB_LOG_PREFIX "digitv"
+#include "dvb-usb.h"
+
+struct digitv_state {
+ int is_nxt6000;
+};
+
+/* protocol (from usblogging and the SDK:
+ *
+ * Always 7 bytes bulk message(s) for controlling
+ *
+ * First byte describes the command. Reads are 2 consecutive transfer (as always).
+ *
+ * General structure:
+ *
+ * write or first message of a read:
+ * <cmdbyte> VV <len> B0 B1 B2 B3
+ *
+ * second message of a read
+ * <cmdbyte> VV <len> R0 R1 R2 R3
+ *
+ * whereas 0 < len <= 4
+ *
+ * I2C address is stored somewhere inside the device.
+ *
+ * 0x01 read from EEPROM
+ * VV = offset; B* = 0; R* = value(s)
+ *
+ * 0x02 read register of the COFDM
+ * VV = register; B* = 0; R* = value(s)
+ *
+ * 0x05 write register of the COFDM
+ * VV = register; B* = value(s);
+ *
+ * 0x06 write to the tuner (only for NXT6000)
+ * VV = 0; B* = PLL data; len = 4;
+ *
+ * 0x03 read remote control
+ * VV = 0; B* = 0; len = 4; R* = key
+ *
+ * 0x07 write to the remote (don't know why one should this, resetting ?)
+ * VV = 0; B* = key; len = 4;
+ *
+ * 0x08 write remote type
+ * VV = 0; B[0] = 0x01, len = 4
+ *
+ * 0x09 write device init
+ * TODO
+ */
+#define USB_READ_EEPROM 1
+
+#define USB_READ_COFDM 2
+#define USB_WRITE_COFDM 5
+
+#define USB_WRITE_TUNER 6
+
+#define USB_READ_REMOTE 3
+#define USB_WRITE_REMOTE 7
+#define USB_WRITE_REMOTE_TYPE 8
+
+#define USB_DEV_INIT 9
+
+#endif