cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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pca9552-test.c (2367B)

      1/*
      2 * QTest testcase for the PCA9552 LED blinker
      3 *
      4 * Copyright (c) 2017-2018, IBM Corporation.
      5 *
      6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
      7 * See the COPYING file in the top-level directory.
      8 */
      9
     10#include "qemu/osdep.h"
     11
     12#include "libqos/libqtest.h"
     13#include "libqos/qgraph.h"
     14#include "libqos/i2c.h"
     15#include "hw/misc/pca9552_regs.h"
     16
     17#define PCA9552_TEST_ID   "pca9552-test"
     18#define PCA9552_TEST_ADDR 0x60
     19
     20static void pca9552_init(QI2CDevice *i2cdev)
     21{
     22    /* Switch on LEDs 0 and 12 */
     23    i2c_set8(i2cdev, PCA9552_LS0, 0x54);
     24    i2c_set8(i2cdev, PCA9552_LS3, 0x54);
     25}
     26
     27static void receive_autoinc(void *obj, void *data, QGuestAllocator *alloc)
     28{
     29    QI2CDevice *i2cdev = (QI2CDevice *)obj;
     30    uint8_t resp;
     31    uint8_t reg = PCA9552_LS0 | PCA9552_AUTOINC;
     32
     33    pca9552_init(i2cdev);
     34
     35    qi2c_send(i2cdev, &reg, 1);
     36
     37    /* PCA9552_LS0 */
     38    qi2c_recv(i2cdev, &resp, 1);
     39    g_assert_cmphex(resp, ==, 0x54);
     40
     41    /* PCA9552_LS1 */
     42    qi2c_recv(i2cdev, &resp, 1);
     43    g_assert_cmphex(resp, ==, 0x55);
     44
     45    /* PCA9552_LS2 */
     46    qi2c_recv(i2cdev, &resp, 1);
     47    g_assert_cmphex(resp, ==, 0x55);
     48
     49    /* PCA9552_LS3 */
     50    qi2c_recv(i2cdev, &resp, 1);
     51    g_assert_cmphex(resp, ==, 0x54);
     52}
     53
     54static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
     55{
     56    QI2CDevice *i2cdev = (QI2CDevice *)obj;
     57    uint8_t value;
     58
     59    value = i2c_get8(i2cdev, PCA9552_LS0);
     60    g_assert_cmphex(value, ==, 0x55);
     61
     62    value = i2c_get8(i2cdev, PCA9552_INPUT0);
     63    g_assert_cmphex(value, ==, 0x0);
     64
     65    pca9552_init(i2cdev);
     66
     67    value = i2c_get8(i2cdev, PCA9552_LS0);
     68    g_assert_cmphex(value, ==, 0x54);
     69
     70    value = i2c_get8(i2cdev, PCA9552_INPUT0);
     71    g_assert_cmphex(value, ==, 0x01);
     72
     73    value = i2c_get8(i2cdev, PCA9552_LS3);
     74    g_assert_cmphex(value, ==, 0x54);
     75
     76    value = i2c_get8(i2cdev, PCA9552_INPUT1);
     77    g_assert_cmphex(value, ==, 0x10);
     78}
     79
     80static void pca9552_register_nodes(void)
     81{
     82    QOSGraphEdgeOptions opts = {
     83        .extra_device_opts = "address=0x60"
     84    };
     85    add_qi2c_address(&opts, &(QI2CAddress) { 0x60 });
     86
     87    qos_node_create_driver("pca9552", i2c_device_create);
     88    qos_node_consumes("pca9552", "i2c-bus", &opts);
     89
     90    qos_add_test("tx-rx", "pca9552", send_and_receive, NULL);
     91    qos_add_test("rx-autoinc", "pca9552", receive_autoinc, NULL);
     92}
     93libqos_init(pca9552_register_nodes);