static int do_gpio_status(bool all, const char *gpio_name)
{
struct udevice *dev;
int banklen;
int flags;
int ret;
flags = 0;
if (gpio_name && !*gpio_name)
gpio_name = NULL;
for (ret = uclass_first_device(UCLASS_GPIO, &dev);
dev;
ret = uclass_next_device(&dev)) {
const char *bank_name;
int num_bits;
flags |= FLAG_SHOW_BANK;
if (all)
flags |= FLAG_SHOW_ALL;
bank_name = gpio_get_bank_info(dev, &num_bits);
if (!num_bits) {
debug("GPIO device %s has no bits\n", dev->name);
continue;
}
banklen = bank_name ? strlen(bank_name) : 0;
if (!gpio_name || !bank_name ||
!strncmp(gpio_name, bank_name, banklen)) {
const char *p = NULL;
int offset;
p = gpio_name + banklen;
if (gpio_name && *p) {
offset = simple_strtoul(p, NULL, 10);
gpio_get_description(dev, bank_name, offset,
&flags);
} else {
for (offset = 0; offset < num_bits; offset++) {
gpio_get_description(dev, bank_name,
offset, &flags);
}
}
}
/* Add a newline between bank names */
if (!(flags & FLAG_SHOW_BANK))
flags |= FLAG_SHOW_NEWLINE;
}
return ret;
}
/* Test that sandbox anonymous GPIOs work correctly */
static int dm_test_gpio_anon(struct dm_test_state *dms)
{
unsigned int offset, gpio;
struct udevice *dev;
const char *name;
int offset_count;
/* And the anonymous bank */
ut_assertok(gpio_lookup_name("14", &dev, &offset, &gpio));
ut_asserteq_str(dev->name, "gpio_sandbox");
ut_asserteq(14, offset);
ut_asserteq(14, gpio);
name = gpio_get_bank_info(dev, &offset_count);
ut_asserteq_ptr(NULL, name);
ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count);
return 0;
}
/* Test if it's possible to access GPIO that should be in pmic */
static int dm_test_spmi_access_peripheral(struct unit_test_state *uts)
{
struct udevice *dev;
unsigned int offset, gpio;
const char *name;
int offset_count;
/* Get second pin of PMIC GPIO */
ut_assertok(gpio_lookup_name("spmi1", &dev, &offset, &gpio));
/* Check if PMIC is parent */
ut_asserteq(device_get_uclass_id(dev->parent), UCLASS_PMIC);
/* This should be second gpio */
ut_asserteq(1, offset);
name = gpio_get_bank_info(dev, &offset_count);
/* Check bank name */
ut_asserteq_str("spmi", name);
/* Check pin count */
ut_asserteq(4, offset_count);
ut_assertok(gpio_request(gpio, "testing"));
/* Try to set/clear gpio */
ut_assertok(gpio_direction_output(gpio, 0));
ut_asserteq(gpio_get_value(gpio), 0);
ut_assertok(gpio_direction_output(gpio, 1));
ut_asserteq(gpio_get_value(gpio), 1);
ut_assertok(gpio_direction_input(gpio));
ut_asserteq(gpio_get_value(gpio), 1);
ut_assertok(gpio_free(gpio));
return 0;
}
/* Test that sandbox GPIOs work correctly */
static int dm_test_gpio(struct dm_test_state *dms)
{
unsigned int offset, gpio;
struct dm_gpio_ops *ops;
struct udevice *dev;
const char *name;
int offset_count;
char buf[80];
/*
* We expect to get 3 banks. One is anonymous (just numbered) and
* comes from platdata. The other two are named a (20 gpios)
* and b (10 gpios) and come from the device tree. See
* test/dm/test.dts.
*/
ut_assertok(gpio_lookup_name("b4", &dev, &offset, &gpio));
ut_asserteq_str(dev->name, "extra-gpios");
ut_asserteq(4, offset);
ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 20 + 4, gpio);
name = gpio_get_bank_info(dev, &offset_count);
ut_asserteq_str("b", name);
ut_asserteq(10, offset_count);
/* Get the operations for this device */
ops = gpio_get_ops(dev);
ut_assert(ops->get_state);
/* Cannot get a value until it is reserved */
ut_asserteq(-1, ops->get_value(dev, offset));
/*
* Now some tests that use the 'sandbox' back door. All GPIOs
* should default to input, include b4 that we are using here.
*/
ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: in: 0 [ ]", buf);
/* Change it to an output */
sandbox_gpio_set_direction(dev, offset, 1);
ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: out: 0 [ ]", buf);
sandbox_gpio_set_value(dev, offset, 1);
ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: out: 1 [ ]", buf);
ut_assertok(ops->request(dev, offset, "testing"));
ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: out: 1 [x] testing", buf);
/* Change the value a bit */
ut_asserteq(1, ops->get_value(dev, offset));
ut_assertok(ops->set_value(dev, offset, 0));
ut_asserteq(0, ops->get_value(dev, offset));
ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: out: 0 [x] testing", buf);
ut_assertok(ops->set_value(dev, offset, 1));
ut_asserteq(1, ops->get_value(dev, offset));
/* Make it an input */
ut_assertok(ops->direction_input(dev, offset));
ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: in: 1 [x] testing", buf);
sandbox_gpio_set_value(dev, offset, 0);
ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: in: 0 [x] testing", buf);
ut_assertok(ops->free(dev, offset));
ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: in: 0 [ ]", buf);
/* Check the 'a' bank also */
ut_assertok(gpio_lookup_name("a15", &dev, &offset, &gpio));
ut_asserteq_str(dev->name, "base-gpios");
ut_asserteq(15, offset);
ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 15, gpio);
name = gpio_get_bank_info(dev, &offset_count);
ut_asserteq_str("a", name);
ut_asserteq(20, offset_count);
/* And the anonymous bank */
ut_assertok(gpio_lookup_name("14", &dev, &offset, &gpio));
ut_asserteq_str(dev->name, "gpio_sandbox");
ut_asserteq(14, offset);
ut_asserteq(14, gpio);
name = gpio_get_bank_info(dev, &offset_count);
ut_asserteq_ptr(NULL, name);
ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count);
return 0;
}