972
edits
AMD PCNET: Difference between revisions
m
Bot: Replace deprecated source tag with syntaxhighlight
| [unchecked revision] | [unchecked revision] |
m (Bot: Replace deprecated source tag with syntaxhighlight) |
m (Bot: Replace deprecated source tag with syntaxhighlight) |
||
Line 115:
You should also have a variable that stores the current 'pointer' into each buffer (i.e. what is the next one the driver expects to read/write). The card maintains separate pointers internally. You also need a simple way of incrementing the pointer (and wrapping back to the start if necessary).
Thus to initialize the ring buffers you'd want something like:<
int tx_buffer_ptr = 0; // pointers to transmit/receive buffers
Line 175:
if(!is_tx)
des[idx * de_size + 7] = 0x80;
}</
=== Card registers setup ===
| |||