Compaq TRU64 AA-RNG2A-TE - Manual (Page 4)

3.6 Defining the Interrupt Handler ID . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 3–6
3.7 Defining CSR Pointer Information . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 3–6
3.8 Defining FIFO Maintenance Information .. . .. . .. . .. . . .. . .. . .. . .. . 3–7
3.9 Defining Bus-Specific Information . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 3–7
3.10 Defining the Broadcast Flag . . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 3–8
3.11 Defining the Debug Flag .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 3–8
3.12 Defining Interrupt and Timeout Statistics . .. . .. . .. . . .. . .. . .. . .. . 3–8
3.13 Defining Autosense Kernel Thread Context Information .. . .. . 3–9
3.14 Defining the Polling Context Flag . . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 3–9
3.15 Defining a Copy of the w3_eeprom Data Structure . . .. . .. . .. . .. . 3–10
3.16 Declaring the Simple Lock Data Structure . .. . .. . .. . . .. . .. . .. . .. . 3–10
4 Implementing the Configure Section
4.1 Declaring Configure-Related Variables and the
cfg_subsys_attr_t Data Structure . . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. .
4–1
4.2 Setting Up the el_configure Routine . . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 4–3
5 Implementing the Autoconfiguration Support Section (probe)
5.1 Implementing the el_probe Routine . . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–1
5.1.1 Setting Up the el_probe Routine . . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–2
5.1.2 Checking the Maximum Number of Devices That the
Driver Supports . . .. . .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. .
5–4
5.1.3 Performing Bus-Specific Tasks . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–4
5.1.4 Allocating Memory for the softc Data Structure .. . .. . .. . .. . 5–6
5.1.5 Allocating the ether_driver Data Structure . . .. . . .. . .. . .. . .. . 5–7
5.1.6 Initializing the Enhanced Hardware Management Data
Structure .. . . .. . .. . .. . .. . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. .
5–8
5.1.7 Computing the CSR Addresses .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–8
5.1.8 Setting Bus-Specific Data Structure Members . . .. . .. . .. . .. . 5–8
5.1.9 Handling First-Time Probe Operations . .. . .. . .. . . .. . .. . .. . .. . 5–10
5.1.10 Handling Subsequent Probe Operations . . .. . .. . . .. . .. . .. . .. . 5–12
5.1.11 Registering the Interrupt Handler . . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–14
5.1.12 Saving the controller and softc Data Structure Pointers . . 5–16
5.1.13 Trying to Allocate Another controller Data Structure .. . .. . 5–16
5.1.14 Registering the shutdown Routine . . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–17
5.2 Implementing the el_shutdown Routine . .. . .. . .. . .. . . .. . .. . .. . .. . 5–17
5.3 Implementing the el_autosense_thread Routine . .. . . .. . .. . .. . .. . 5–17
5.3.1 Setting Up the el_autosense_thread Routine .. . . .. . .. . .. . .. . 5–19
5.3.2 Blocking Until Awakened . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–19
5.3.3 Testing for the Termination Flag . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–20
5.3.4 Starting Up Statistics . . .. . .. . .. . .. . .. . . .. . .. . .. . .. . . .. . .. . .. . .. . 5–20
iv Contents