mirror of https://github.com/rusefi/rusefi-1.git
148 lines
3.5 KiB
C++
148 lines
3.5 KiB
C++
/**
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* @file test_gpiochip.cpp
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*
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* @date Mar 12, 2019
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*/
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#include "unit_test_framework.h"
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#include "global.h"
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#include "gpio/gpio_ext.h"
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using ::testing::_;
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static int testchip_readPad(void *data, brain_pin_e pin)
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{
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if (pin & 0x01)
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return 1;
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return 0;
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}
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static int io_state = 0;
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static int testchip_writePad(void *data, brain_pin_e pin, int value)
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{
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if (value)
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io_state |= (1 << value);
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else
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io_state &= ~(1 << value);
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return 0;
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}
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static int initcalls = 0;
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static int testchip_init(void *data)
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{
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initcalls++;
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return 0;
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}
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static int calls_to_failed_chip = 0;
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static int testchip_failed_writePad(void *data, brain_pin_e pin, int value)
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{
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calls_to_failed_chip++;
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return 0;
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}
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static int testchip_failed_init(void *data)
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{
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return -1;
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}
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/* invalid chip */
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struct gpiochip_ops testchip0 = {
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/*.setPadMode =*/ NULL,
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/*.writePad =*/ NULL,
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/*.readPad =*/ NULL,
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/*.getDiag =*/ NULL,
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/*.init =*/ testchip_init,
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/*.deinit =*/ NULL,
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};
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/* Input only chip */
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struct gpiochip_ops testchip1 = {
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/*.setPadMode =*/ NULL,
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/*.writePad =*/ NULL,
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/*.readPad =*/ testchip_readPad,
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/*.getDiag =*/ NULL,
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/*.init =*/ testchip_init,
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/*.deinit =*/ NULL,
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};
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/* Input only chip */
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struct gpiochip_ops testchip2 = {
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/*.setPadMode =*/ NULL,
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/*.writePad =*/ testchip_writePad,
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/*.readPad =*/ NULL,
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/*.getDiag =*/ NULL,
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/*.init =*/ testchip_init,
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/*.deinit =*/ NULL,
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};
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/* testchi[ failed to init */
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struct gpiochip_ops testchip3 = {
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/*.setPadMode =*/ NULL,
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/*.writePad =*/ testchip_failed_writePad,
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/*.readPad =*/ NULL,
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/*.getDiag =*/ NULL,
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/*.init =*/ testchip_failed_init,
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/*.deinit =*/ NULL,
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};
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TEST(gpioext, testGpioExt) {
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int ret;
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int chip1_base, chip2_base, chip3_base;
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printf("====================================================================================== testGpioExt\r\n");
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/* should fail to register chip with no readPad and writePad */
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EXPECT_FALSE(gpiochip_register("invalid", &testchip0, 16, NULL) > 0);
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/* should fail to register chip with zero gpios */
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EXPECT_FALSE(gpiochip_register("invalid", &testchip1, 0, NULL) > 0);
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chip1_base = gpiochip_register("input only", &testchip1, 16, NULL);
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EXPECT_TRUE(chip1_base > 0);
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EXPECT_EQ(16, gpiochips_get_total_pins());
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chip2_base = gpiochip_register("output only", &testchip2, 16, NULL);
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EXPECT_TRUE(chip2_base > 0);
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/* this chip will fail to init, but should be registered without errors */
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chip3_base = gpiochip_register("failed chip", &testchip3, 16, NULL);
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EXPECT_TRUE(chip2_base > 0);
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EXPECT_EQ(48, gpiochips_get_total_pins());
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/* init 3 chips, one will fail */
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ret = gpiochips_init();
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EXPECT_EQ(32, ret);
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/* two drivers should be inited */
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EXPECT_EQ(2, initcalls);
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/* gpio reads */
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EXPECT_TRUE(gpiochips_readPad((brain_pin_e)(chip1_base + 0)) == 0);
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EXPECT_TRUE(gpiochips_readPad((brain_pin_e)(chip1_base + 1)) != 0);
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/* gpio write */
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gpiochips_writePad((brain_pin_e)(chip2_base + 0), 0);
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gpiochips_writePad((brain_pin_e)(chip2_base + 1), 1);
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EXPECT_EQ(0x02, io_state);
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/* try to access failed chip */
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EXPECT_FALSE(gpiochips_writePad((brain_pin_e)(chip3_base + 0), 0) >= 0);
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EXPECT_FALSE(gpiochips_writePad((brain_pin_e)(chip3_base + 1), 1) >= 0);
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EXPECT_EQ(0, calls_to_failed_chip);
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/* read/write outside range */
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EXPECT_TRUE(gpiochips_readPad((brain_pin_e)(chip1_base - 1)) < 0);
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EXPECT_TRUE(gpiochips_writePad((brain_pin_e)(chip1_base - 1), 1) < 0);
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EXPECT_TRUE(gpiochips_readPad((brain_pin_e)(chip3_base + 16)) < 0);
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EXPECT_TRUE(gpiochips_writePad((brain_pin_e)(chip3_base + 16), 1) < 0);
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}
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