qemu-patch-raspberry4/tests/usb-hcd-ehci-test.c
David Gibson b4ba67d9a7 libqos: Change PCI accessors to take opaque BAR handle
The usual use model for the libqos PCI functions is to map a specific PCI
BAR using qpci_iomap() then pass the returned token into IO accessor
functions.  This, and the fact that iomap() returns a (void *) which
actually contains a PCI space address, kind of suggests that the return
value from iomap is supposed to be an opaque token.

..except that the callers expect to be able to add offsets to it.  Which
also assumes the compiler will support pointer arithmetic on a (void *),
and treat it as working with byte offsets.

To clarify this situation change iomap() and the IO accessors to take
a definitely opaque BAR handle (enforced with a wrapper struct) along with
an offset within the BAR.  This changes both the functions and all the
callers.

There were a number of places that checked if iomap() returned non-NULL,
and or initialized it to NULL before hand.  Since iomap() already assert()s
if it fails to map the BAR, these tests were mostly pointless and are
removed.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
2016-10-28 09:38:27 +11:00

170 lines
4.6 KiB
C

/*
* QTest testcase for USB EHCI
*
* Copyright (c) 2014 SUSE LINUX Products GmbH
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "libqtest.h"
#include "libqos/pci-pc.h"
#include "hw/usb/uhci-regs.h"
#include "hw/usb/ehci-regs.h"
#include "libqos/usb.h"
static QPCIBus *pcibus;
static struct qhc uhci1;
static struct qhc uhci2;
static struct qhc uhci3;
static struct qhc ehci1;
/* helpers */
#if 0
static void uhci_port_update(struct qhc *hc, int port,
uint16_t set, uint16_t clear)
{
void *addr = hc->base + 0x10 + 2 * port;
uint16_t value;
value = qpci_io_readw(hc->dev, addr);
value |= set;
value &= ~clear;
qpci_io_writew(hc->dev, addr, value);
}
#endif
static void ehci_port_test(struct qhc *hc, int port, uint32_t expect)
{
uint32_t value = qpci_io_readl(hc->dev, hc->bar, 0x64 + 4 * port);
uint16_t mask = ~(PORTSC_CSC | PORTSC_PEDC | PORTSC_OCC);
#if 0
fprintf(stderr, "%s: %d, have 0x%08x, want 0x%08x\n",
__func__, port, value & mask, expect & mask);
#endif
g_assert((value & mask) == (expect & mask));
}
/* tests */
static void pci_init(void)
{
if (pcibus) {
return;
}
pcibus = qpci_init_pc(NULL);
g_assert(pcibus != NULL);
qusb_pci_init_one(pcibus, &uhci1, QPCI_DEVFN(0x1d, 0), 4);
qusb_pci_init_one(pcibus, &uhci2, QPCI_DEVFN(0x1d, 1), 4);
qusb_pci_init_one(pcibus, &uhci3, QPCI_DEVFN(0x1d, 2), 4);
qusb_pci_init_one(pcibus, &ehci1, QPCI_DEVFN(0x1d, 7), 0);
}
static void pci_uhci_port_1(void)
{
g_assert(pcibus != NULL);
uhci_port_test(&uhci1, 0, UHCI_PORT_CCS); /* usb-tablet */
uhci_port_test(&uhci1, 1, UHCI_PORT_CCS); /* usb-storage */
uhci_port_test(&uhci2, 0, 0);
uhci_port_test(&uhci2, 1, 0);
uhci_port_test(&uhci3, 0, 0);
uhci_port_test(&uhci3, 1, 0);
}
static void pci_ehci_port_1(void)
{
int i;
g_assert(pcibus != NULL);
for (i = 0; i < 6; i++) {
ehci_port_test(&ehci1, i, PORTSC_POWNER | PORTSC_PPOWER);
}
}
static void pci_ehci_config(void)
{
/* hands over all ports from companion uhci to ehci */
qpci_io_writew(ehci1.dev, ehci1.bar, 0x60, 1);
}
static void pci_uhci_port_2(void)
{
g_assert(pcibus != NULL);
uhci_port_test(&uhci1, 0, 0); /* usb-tablet, @ehci */
uhci_port_test(&uhci1, 1, 0); /* usb-storage, @ehci */
uhci_port_test(&uhci2, 0, 0);
uhci_port_test(&uhci2, 1, 0);
uhci_port_test(&uhci3, 0, 0);
uhci_port_test(&uhci3, 1, 0);
}
static void pci_ehci_port_2(void)
{
static uint32_t expect[] = {
PORTSC_PPOWER | PORTSC_CONNECT, /* usb-tablet */
PORTSC_PPOWER | PORTSC_CONNECT, /* usb-storage */
PORTSC_PPOWER,
PORTSC_PPOWER,
PORTSC_PPOWER,
PORTSC_PPOWER,
};
int i;
g_assert(pcibus != NULL);
for (i = 0; i < 6; i++) {
ehci_port_test(&ehci1, i, expect[i]);
}
}
static void pci_ehci_port_3_hotplug(void)
{
/* check for presence of hotplugged usb-tablet */
g_assert(pcibus != NULL);
ehci_port_test(&ehci1, 2, PORTSC_PPOWER | PORTSC_CONNECT);
}
static void pci_ehci_port_hotplug(void)
{
usb_test_hotplug("ich9-ehci-1", 3, pci_ehci_port_3_hotplug);
}
int main(int argc, char **argv)
{
int ret;
g_test_init(&argc, &argv, NULL);
qtest_add_func("/ehci/pci/init", pci_init);
qtest_add_func("/ehci/pci/uhci-port-1", pci_uhci_port_1);
qtest_add_func("/ehci/pci/ehci-port-1", pci_ehci_port_1);
qtest_add_func("/ehci/pci/ehci-config", pci_ehci_config);
qtest_add_func("/ehci/pci/uhci-port-2", pci_uhci_port_2);
qtest_add_func("/ehci/pci/ehci-port-2", pci_ehci_port_2);
qtest_add_func("/ehci/pci/ehci-port-3-hotplug", pci_ehci_port_hotplug);
qtest_start("-machine q35 -device ich9-usb-ehci1,bus=pcie.0,addr=1d.7,"
"multifunction=on,id=ich9-ehci-1 "
"-device ich9-usb-uhci1,bus=pcie.0,addr=1d.0,"
"multifunction=on,masterbus=ich9-ehci-1.0,firstport=0 "
"-device ich9-usb-uhci2,bus=pcie.0,addr=1d.1,"
"multifunction=on,masterbus=ich9-ehci-1.0,firstport=2 "
"-device ich9-usb-uhci3,bus=pcie.0,addr=1d.2,"
"multifunction=on,masterbus=ich9-ehci-1.0,firstport=4 "
"-drive if=none,id=usbcdrom,media=cdrom "
"-device usb-tablet,bus=ich9-ehci-1.0,port=1,usb_version=1 "
"-device usb-storage,bus=ich9-ehci-1.0,port=2,drive=usbcdrom ");
ret = g_test_run();
qtest_end();
return ret;
}