=> R0 = bit set of results required
R1 = word aligned buffer to receive results (4 bytes each)
R2 = length of buffer
R3 = ROM section
<= R2 = length of results written
This SWI returns an array of grubby information about the given expansion card based on the bit mask in R0.
Bit Word returned
0 Expansion card/Extension ROM number
1 Synchronous base address of card (or NIC chip base address), or zero for none
2 CMOS address
3 CMOS size
4 Extension ROM (or NIC ROM) base address
5 Expansion card ID byte
6 Product type
7 Combined hardware address (Sync base OR'd CMOS address)
8 Pointer to description string, or zero for none
9 EASI address, or zero for none
10 EASI size
11 Primary DMA channel logical number (or -1 for none)
12 Secondary DMA channel logical number (or -1 for none)
13 IRQ status register
14 IRQ request register
15 IRQ mask register
16 IRQ bit mask to apply to the above 3 registers
17 IRQ device number for OS_ClaimDeviceVector
18 FIQ as IRQ status register
19 FIQ as IRQ request register
20 FIQ as IRQ mask register
21 FIQ as IRQ bit mask to apply to the above 3 registers
22 FIQ as IRQ device number for OS_ClaimDeviceVector
23 FIQ status register
24 FIQ request register
25 FIQ mask register
26 FIQ bit mask to apply to the above 3 registers
27 Ethernet address, low 32 bits
28 Ethernet address, remaining 16 bits
29 MEMC address, or zero for none
30 Reserved
31 Reserved
The string pointers returned point to temporary buffers in the Expansion Card Manager's workspace so you should take a local copy of the strings as they will be invalidated by the next call.
See PRM 5, page 273.
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