Hi, I have a MIPS based SoC and my task is to interface this board to a CAM module, specifically to the CryptoWorks... Before I didnt have any knowledge about this topic so I searched the internet how I can do that and noticed CAM modules are interfaced to the host microprocessor via a common interface bus -> EN 50221. This is both a hardware and software standard. It look likes PCMCIA but not exactly. In fact at the beginning I thought it is the same as with PCMCIA but a friend said mechanically same but as signalling different. He advised using a CI controller if you want to be in the safe side. Am I correct up to here? In my SoC there is a external bus which NOR, NAND, I/O and PCMCIA devices can be connected. You select the device type for the bus and signalling changes. After the light of above infos, I found I need a CI controller chip e.g. like CiMax. CiMax converts SRAM-like interfaces to a common interface, which CAM modules can be inserted. This is the hardware part. The problem here is that which mode should I configure the bus: PCMCIA or I/O? I think I/O is enough? For the software part, one should write "dvb_ca_en50221 struct functions" to access the CAM module. For example, at the initialization phase CIS-card information structure- is read. read_attribute_mem write_attribute_mem hooks provides the necessary functionality but I am not sure how to fill that functions using CiMax. From the datasheet I noticed that when I want to read the attribute memory I have to set a register in the CiMax and then access to the related bus in an ordinary way. More specifically; CIS offset is 0, CiMax gets AD[25:15] as input that means that CIS address should be aligned to 64K boundary. So a readl() to this address should return a CIS tuple. If there is someone who used CiMax before can he/she verify me? Thanks in advance... -- Bora SAHIN _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
