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a340db5e76
dahdi-linux/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api
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Shaun Ruffell a340db5e76 wct4xxp: Reduce stack usage in oct612x API. 
Reduce the stack usage by replacing the mOCT6100_RETRIEVE_NLP_CONF_DWORD
and mOCT6100_SAVE_NLP_CONF_DWORD macros with functions. Some compilers
do a better job of optimizing the local variables declared in those
macros than others.

For example, with gcc 4.3.0, running

]# make stackcheck | grep Oct6100 | head -n 20 | sed -e 's/^0\S* //g' | uniq

Before:
Oct6100ApiWriteVqeNlpMemory [wct4xxp]:  1112
Oct6100ApiInvalidateChanPlayoutStructs [wct4xxp]:520
Oct6100ApiSetChannelLevelControl [wct4xxp]:     392
Oct6100ApiBridgeEventRemove [wct4xxp]:  344
Oct6100ApiDebugChannelOpen [wct4xxp]:   312
Oct6100ApiWriteVqeAfMemory [wct4xxp]:   296
Oct6100ApiSetChannelTailConfiguration [wct4xxp]:264
Oct6100ApiRandomMemoryWrite [wct4xxp]:  248
Oct6100ApiTransferToneEvents [wct4xxp]: 248
Oct6100ApiModifyChannelStructs [wct4xxp]:       232

After:
Oct6100ApiBridgeEventRemove [wct4xxp]:  344
Oct6100ApiDebugChannelOpen [wct4xxp]:   312
Oct6100ApiRandomMemoryWrite [wct4xxp]:  248
Oct6100ApiTransferToneEvents [wct4xxp]: 248
Oct6100ApiInvalidateChanPlayoutStructs [wct4xxp]:248
Oct6100ApiModifyChannelStructs [wct4xxp]:       232
Oct6100ApiBridgeRemoveParticipantFromChannel [wct4xxp]:216
Oct6100ApiWriteVqeNlpMemory [wct4xxp]:  200
Oct6100ApiInitChannels [wct4xxp]:               168
Oct6100ApiProgramNLP [wct4xxp]:         168

Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9751 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-02-10 16:22:55 +00:00
..
oct6100_adpcm_chan.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_channel.c wct4xxp: Reduce stack usage in oct612x API. 2011-02-10 16:22:55 +00:00
oct6100_chip_open.c wct4xxp: Reduce the memory footprint of the hardware echocanceler. 2011-02-10 16:22:49 +00:00
oct6100_chip_stats.c wct4xxp: Reduce stack usage in oct612x API. 2011-02-10 16:22:55 +00:00
oct6100_conf_bridge.c wct4xxp: Reduce stack usage in oct612x API. 2011-02-10 16:22:55 +00:00
oct6100_debug.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_events.c wct4xxp: Reduce stack usage in oct612x API. 2011-02-10 16:22:55 +00:00
oct6100_interrupts.c wct4xxp: Reduce stack usage in oct612x API. 2011-02-10 16:22:55 +00:00
oct6100_memory.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_miscellaneous.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_mixer.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_phasing_tsst.c wct4xxp: Reduce stack usage in oct612x API. 2011-02-10 16:22:55 +00:00
oct6100_playout_buf.c wct4xxp: Reduce stack usage in oct612x API. 2011-02-10 16:22:55 +00:00
oct6100_remote_debug.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_tlv.c wct4xxp: Reduce stack usage in oct612x API. 2011-02-10 16:22:55 +00:00
oct6100_tone_detection.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_tsi_cnct.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_tsst.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
oct6100_user.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00