> Now I have a linux2.2.14 kernel which runs on my MPC860P board.
> I would want to customize an hdlc driver on scc.
> Some help about what exists (structure, driver, howto, ...) would be
> welcome.
I need to handle HDLC for my ISDN project on an MBX board. Progress is
slowly, because I am no expert. At the moment I can give away this
addition to commproc.h:
--- snip --------------------------------------------------------------
/********* SCC parameter RAM for HDLC mode *********/
typedef struct scc_hdlc {
sccp_t scc_gen; /* generic SCC parameters */
uint scc_res1; /* reserved */
uint scc_cmask; /* CRC mask */
uint scc_cpres; /* CRC preset */
ushort scc_disfc; /* discarded frame counter */
ushort scc_crcec; /* CRC error counter */
ushort scc_abtsc; /* abort sequence counter */
ushort scc_nmarc; /* nonmatching address receive counter */
ushort scc_retrc; /* frame retransmission counter */
ushort scc_mflr; /* Max frame length register */
ushort scc_maxcnt; /* internal */
ushort scc_rfthr; /* received frames threshold */
ushort scc_rfcnt; /* internal */
ushort scc_hmask; /* HDLC address mask register */
ushort scc_haddr1; /* HDLC address register 1 */
ushort scc_haddr2; /* HDLC address register 2 */
ushort scc_haddr3; /* HDLC address register 3 */
ushort scc_haddr4; /* HDLC address register 4 */
ushort scc_tmp; /* internal */
ushort scc_tmp_mb; /* internal */
} scc_hdlc_t;
--- snip --------------------------------------------------------------
Ciao - Tobias
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