diff options
| author | balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-12-07 18:49:57 +0000 |
|---|---|---|
| committer | balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-12-07 18:49:57 +0000 |
| commit | c6d86a33d36891bd5090ea72134b9854d6811173 (patch) | |
| tree | 67fc4033db10455bf8fcc096de991c130c3a509a /hw/sh_intc.c | |
| parent | a4a771c055ea50f255f0d9a555c8628587afbea3 (diff) | |
sh4: Add IRL (4-bit encoded interrupt input) support (Takashi YOSHII).
This patch adds IRL(4bit encoded 15 level interrupt input) support
to SH using qemu_irq as a multi level (!=on/off) signal.
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5925 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/sh_intc.c')
| -rw-r--r-- | hw/sh_intc.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/hw/sh_intc.c b/hw/sh_intc.c index 99db51c6d..b62633d31 100644 --- a/hw/sh_intc.c +++ b/hw/sh_intc.c @@ -465,3 +465,18 @@ int sh_intc_init(struct intc_desc *desc, return 0; } + +/* Assert level <n> IRL interrupt. + 0:deassert. 1:lowest priority,... 15:highest priority. */ +void sh_intc_set_irl(void *opaque, int n, int level) +{ + struct intc_source *s = opaque; + int i, irl = level ^ 15; + for (i = 0; (s = sh_intc_source(s->parent, s->next_enum_id)); i++) { + if (i == irl) + sh_intc_toggle_source(s, s->enable_count?0:1, s->asserted?0:1); + else + if (s->asserted) + sh_intc_toggle_source(s, 0, -1); + } +} |