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/*
* QTest testcase for the PCA9552 LED blinker
*
* Copyright (c) 2017-2018, IBM Corporation.
*
* 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/qgraph.h"
#include "libqos/i2c.h"
#include "hw/gpio/pca9552_regs.h"
#define PCA9552_TEST_ID "pca9552-test"
#define PCA9552_TEST_ADDR 0x60
static void pca9552_init(QI2CDevice *i2cdev)
{
/* Switch on LEDs 0 and 12 */
i2c_set8(i2cdev, PCA9552_LS0, 0x54);
i2c_set8(i2cdev, PCA9552_LS3, 0x54);
}
static void receive_autoinc(void *obj, void *data, QGuestAllocator *alloc)
{
QI2CDevice *i2cdev = (QI2CDevice *)obj;
uint8_t resp;
uint8_t reg = PCA9552_LS0 | PCA9552_AUTOINC;
pca9552_init(i2cdev);
qi2c_send(i2cdev, ®, 1);
/* PCA9552_LS0 */
qi2c_recv(i2cdev, &resp, 1);
g_assert_cmphex(resp, ==, 0x54);
/* PCA9552_LS1 */
qi2c_recv(i2cdev, &resp, 1);
g_assert_cmphex(resp, ==, 0x55);
/* PCA9552_LS2 */
qi2c_recv(i2cdev, &resp, 1);
g_assert_cmphex(resp, ==, 0x55);
/* PCA9552_LS3 */
qi2c_recv(i2cdev, &resp, 1);
g_assert_cmphex(resp, ==, 0x54);
}
static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
{
QI2CDevice *i2cdev = (QI2CDevice *)obj;
uint8_t value;
value = i2c_get8(i2cdev, PCA9552_LS0);
g_assert_cmphex(value, ==, 0x55);
value = i2c_get8(i2cdev, PCA9552_INPUT0);
g_assert_cmphex(value, ==, 0xFF);
pca9552_init(i2cdev);
value = i2c_get8(i2cdev, PCA9552_LS0);
g_assert_cmphex(value, ==, 0x54);
value = i2c_get8(i2cdev, PCA9552_INPUT0);
g_assert_cmphex(value, ==, 0xFE);
value = i2c_get8(i2cdev, PCA9552_LS3);
g_assert_cmphex(value, ==, 0x54);
value = i2c_get8(i2cdev, PCA9552_INPUT1);
g_assert_cmphex(value, ==, 0xEF);
}
static void pca9552_register_nodes(void)
{
QOSGraphEdgeOptions opts = {
.extra_device_opts = "address=0x60"
};
add_qi2c_address(&opts, &(QI2CAddress) { 0x60 });
qos_node_create_driver("pca9552", i2c_device_create);
qos_node_consumes("pca9552", "i2c-bus", &opts);
qos_add_test("tx-rx", "pca9552", send_and_receive, NULL);
qos_add_test("rx-autoinc", "pca9552", receive_autoinc, NULL);
}
libqos_init(pca9552_register_nodes);
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