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libqos: convert I2C to qgraph

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Create an i2c-bus interface, corresponding to the I2CAdapter struct.
Wrap IMXI2C and OMAPI2C with a QOSGraphObject, and add the get_driver
function to retrieve the I2CAdapter.

The conversion is still not complete; for simplicity, i2c_recv and
i2c_send (along with their wrappers) still take an adapter/address
pair.  Fixing that would be complicated until the tests are converted
to qgraph, so it is left for after the conversion.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2019-03-18 13:48:23 +01:00
parent 732c919cf0
commit c0825c63cf
5 changed files with 83 additions and 8 deletions
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20
tests/libqos/i2c-imx.c
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@ -186,10 +186,22 @@ static void imx_i2c_recv(I2CAdapter *i2c, uint8_t addr,
g_assert((status & I2SR_IBB) == 0);
}
static void *imx_i2c_get_driver(void *obj, const char *interface)
{
IMXI2C *s = obj;
if (!g_strcmp0(interface, "i2c-bus")) {
return &s->parent;
}
fprintf(stderr, "%s not present in imx-i2c\n", interface);
g_assert_not_reached();
}
void imx_i2c_init(IMXI2C *s, QTestState *qts, uint64_t addr)
{
s->addr = addr;
s->obj.get_driver = imx_i2c_get_driver;
s->parent.send = imx_i2c_send;
s->parent.recv = imx_i2c_recv;
s->parent.qts = qts;
@ -213,3 +225,11 @@ void imx_i2c_free(I2CAdapter *i2c)
s = container_of(i2c, IMXI2C, parent);
g_free(s);
}
static void imx_i2c_register_nodes(void)
{
qos_node_create_driver("imx.i2c", NULL);
qos_node_produces("imx.i2c", "i2c-bus");
}
libqos_init(imx_i2c_register_nodes);