[v1] i3c: aspeed: Add I3C support

[PATCH 16/19] hw/i3c/aspeed: Add I3C bus get function

Joe Komlodi posted 19 patches 5 months ago

Diff against v1
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Maintainers: Paolo Bonzini <pbonzini@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, "Cédric Le Goater" <clg@kaod.org>, Steven Lee <steven_lee@aspeedtech.com>, Troy Lee <leetroy@gmail.com>, Jamin Lin <jamin_lin@aspeedtech.com>, Andrew Jeffery <andrew@codeconstruct.com.au>, Joel Stanley <joel@jms.id.au>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>

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[PATCH 16/19] hw/i3c/aspeed: Add I3C bus get function

Posted by Joe Komlodi 5 months ago

To retrieve the I3C bus object normally, the order is Aspeed I3C -> DW
I3C[n] -> bus object, so make a nice wrapper for people to use.

Signed-off-by: Joe Komlodi <komlodi@google.com>
---
 hw/i3c/aspeed_i3c.c         | 9 +++++++++
 include/hw/i3c/aspeed_i3c.h | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/hw/i3c/aspeed_i3c.c b/hw/i3c/aspeed_i3c.c
index 1ad25e5a00..af1ff5bc12 100644
--- a/hw/i3c/aspeed_i3c.c
+++ b/hw/i3c/aspeed_i3c.c
@@ -153,6 +153,15 @@ static const MemoryRegionOps aspeed_i3c_ops = {
     }
 };
 
+I3CBus *aspeed_i3c_get_bus(AspeedI3CState *s, uint8_t bus_num)
+{
+    if (bus_num < ARRAY_SIZE(s->devices)) {
+        return s->devices[bus_num].bus;
+    }
+    /* Developer error, fail fast. */
+    g_assert_not_reached();
+}
+
 static void aspeed_i3c_reset(DeviceState *dev)
 {
     AspeedI3CState *s = ASPEED_I3C(dev);
diff --git a/include/hw/i3c/aspeed_i3c.h b/include/hw/i3c/aspeed_i3c.h
index 9833292ec0..b3e4d1055c 100644
--- a/include/hw/i3c/aspeed_i3c.h
+++ b/include/hw/i3c/aspeed_i3c.h
@@ -34,3 +34,5 @@ typedef struct AspeedI3CState {
     uint8_t id;
 } AspeedI3CState;
 #endif /* ASPEED_I3C_H */
+
+I3CBus *aspeed_i3c_get_bus(AspeedI3CState *s, uint8_t bus_num);
-- 
2.50.0.rc1.591.g9c95f17f64-goog