Compaq TRU64 AA-RNG2A-TE - Manual (Page 6)

7.10 Unregistering the Card from the Hardware Management
Database . . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. .
7–5
7.11 Freeing Resources . .. . .. . .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 7–5
8 Implementing the Initialization Section
8.1 Implementing the el_init Routine . . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–1
8.1.1 Setting Up the el_init Routine . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–1
8.1.2 Determining Whether the PCMCIA Card Is Present . .. . .. . 8–2
8.1.3 Setting the IPL and Obtaining the Simple Lock .. . .. . .. . .. . 8–2
8.1.4 Calling the el_init_locked Routine . . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–3
8.1.5 Releasing the Simple Lock and Resetting the IPL . .. . .. . .. . 8–3
8.1.6 Returning the Status from the el_init_locked Routine . . .. . 8–3
8.2 Implementing the el_init_locked Routine .. . .. . .. . .. . . .. . .. . .. . .. . 8–3
8.2.1 Resetting the Transmitter and Receiver .. . .. . .. . . .. . .. . .. . .. . 8–4
8.2.2 Clearing Interrupts . .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–4
8.2.3 Starting the Device . .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–5
8.2.4 Ensuring That the 10Base2 Transceiver Is Off . . .. . .. . .. . .. . 8–5
8.2.5 Setting the LAN Media . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–6
8.2.6 Setting a LAN Attribute . . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–7
8.2.7 Selecting Memory Mapping . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–7
8.2.8 Resetting the Transmitter and Receiver Again . . .. . .. . .. . .. . 8–7
8.2.9 Setting the LAN Address . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–8
8.2.10 Processing Special Flags . . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–8
8.2.11 Setting the Debug Flag . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–9
8.2.12 Enabling TX and RX .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–9
8.2.13 Enabling Interrupts .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–10
8.2.14 Setting the Operational Window . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–10
8.2.15 Marking the Device as Running . . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 8–10
8.2.16 Starting the Autosense Kernel Thread . .. . .. . .. . . .. . .. . .. . .. . 8–11
8.2.17 Starting the Transmit of Pending Packets .. . .. . . .. . .. . .. . .. . 8–11
9 Implementing the Start Section
9.1 Implementing the el_start Routine .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 9–1
9.1.1 Setting the IPL and Obtaining the Simple Lock .. . .. . .. . .. . 9–1
9.1.2 Calling the el_start_locked Routine . . .. . .. . .. . .. . . .. . .. . .. . .. . 9–2
9.1.3 Releasing the Simple Lock and Resetting the IPL . .. . .. . .. . 9–2
9.2 Implementing the el_start_locked Routine . .. . .. . .. . . .. . .. . .. . .. . 9–3
9.2.1 Discarding All Transmits After the User Removes the
PCMCIA Card . .. . .. . .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. .
9–3
9.2.2 Removing Packets from the Pending Queue and Preparing
the Transmit Buffer . .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. .
9–4
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