Mercurial > ecos
changeset 2323:a22de7f91661
* include/devices_wallclock_i386_pc.inl: Added exception for DS_READ
DS_WRITE. Take into account that in Intel PC platforms the 8Th bit
in DS_ADDR is used to enable or disable NMI gate, and therefore,
should be preserved.
| author | jlarmour |
|---|---|
| date | Thu, 23 Nov 2006 18:21:30 +0000 |
| parents | f501ab75db13 |
| children | daa709b6d819 |
| files | packages/devs/wallclock/i386/pc/current/ChangeLog packages/devs/wallclock/i386/pc/current/include/devices_wallclock_i386_pc.inl |
| diffstat | 2 files changed, 25 insertions(+), 0 deletions(-) [+] |
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--- a/packages/devs/wallclock/i386/pc/current/ChangeLog +++ b/packages/devs/wallclock/i386/pc/current/ChangeLog @@ -1,3 +1,10 @@ +2006-11-23 David Fernandez <dfernandez@cct.co.uk> + + * include/devices_wallclock_i386_pc.inl: Added exception for DS_READ + DS_WRITE. Take into account that in Intel PC platforms the 8Th bit + in DS_ADDR is used to enable or disable NMI gate, and therefore, + should be preserved. + 2001-09-18 Rajagopalan Thiruvenkatachary <rajt@us.ibm.com> * include/devices_wallclock_i386_pc.inl:
--- a/packages/devs/wallclock/i386/pc/current/include/devices_wallclock_i386_pc.inl +++ b/packages/devs/wallclock/i386/pc/current/include/devices_wallclock_i386_pc.inl @@ -52,4 +52,22 @@ #define DS_ADDR CYGDAT_DEVS_WALLCLOCK_I386_PC_RTC_ADDRESS_PORT #define DS_DATA CYGDAT_DEVS_WALLCLOCK_I386_PC_RTC_DATA_PORT +#ifndef DS_LINEAR +#define DS_READ(offset, data) \ +CYG_MACRO_START \ + register CYG_BYTE btval; \ + DS_READ_UINT8( DS_ADDR, (btval)); \ + DS_WRITE_UINT8(DS_ADDR, ((offset)&0x7F)|(btval&0x80)); \ + DS_READ_UINT8( DS_DATA, (data)); \ +CYG_MACRO_END +#define DS_WRITE(offset, data) \ +CYG_MACRO_START \ + register CYG_BYTE btval; \ + DS_READ_UINT8( DS_ADDR, (btval)); \ + DS_WRITE_UINT8(DS_ADDR, ((offset)&0x7F)|(btval&0x80)); \ + DS_WRITE_UINT8(DS_DATA, (data)); \ +CYG_MACRO_END +#endif + + // EOF devs_wallclock_i386_pc.inl