Mercurial > ecos
changeset 238:ee09240e2d36
Disable interrupts on all but the console port.
| author | gthomas |
|---|---|
| date | Thu, 11 Jul 2002 16:39:47 +0000 |
| parents | 2b28abd155c7 |
| children | 8e901b135fea |
| files | packages/redboot/current/ChangeLog packages/redboot/current/src/io.c |
| diffstat | 2 files changed, 17 insertions(+), 1 deletions(-) [+] |
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--- a/packages/redboot/current/ChangeLog +++ b/packages/redboot/current/ChangeLog @@ -1,3 +1,10 @@ +2002-07-11 Gary Thomas <gary@chez-thomas.org> + + * src/io.c (mon_read_char_with_timeout): Ensure interrupts are + disabled on all I/O channels, except for the current console. + This is done when selecting a console, as this process causes + the interrupt state to be inherited from the current console. + 2002-07-09 Gary Thomas <gary@chez-thomas.org> 2002-07-09 Grant Edwards <grante@visi.com>
--- a/packages/redboot/current/src/io.c +++ b/packages/redboot/current/src/io.c @@ -172,7 +172,7 @@ mon_read_char_with_timeout(char *c) #ifdef CYGPKG_REDBOOT_ANY_CONSOLE if (!console_selected) { int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT); - int i, tot; + int i, j, tot; // Try input from all channels tot = 0; while (tot < _mon_timeout) { @@ -186,6 +186,15 @@ mon_read_char_with_timeout(char *c) // Don't chose this unless real data have arrived console_selected = true; CYGACC_CALL_IF_SET_DEBUG_COMM(i); + // Disable interrupts on all channels but this one + for (j = 0; j < CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS; j++) { + if (i != j) { + CYGACC_CALL_IF_SET_CONSOLE_COMM(j); + __chan = CYGACC_CALL_IF_CONSOLE_PROCS(); + CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_IRQ_DISABLE); + } + } + CYGACC_CALL_IF_SET_CONSOLE_COMM(i); return res; } }