static void compute_rc_values(void){
timestamp_t t_up, t_down;
#define COMPUTE_RC_CHAN(ch) {\
timestamp_t ticks = timestamp_ticks_to_us(t_down - t_up);\
if(abs(brd->rc_values[ch] - ticks) > 10 && ticks > RC_MIN && ticks < RC_MAX)\
brd->rc_values[ch] = constrain(ticks, 1000, 2000);\
}
uint8_t active = 0;
if(gpio_get_status(GPIO_RC0, &t_up, &t_down) & GP_WENT_LOW){
active = 1;
COMPUTE_RC_CHAN(0);
}
if(gpio_get_status(GPIO_RC1, &t_up, &t_down) & GP_WENT_LOW){
active = 1;
COMPUTE_RC_CHAN(1);
}
if(gpio_get_status(GPIO_RC2, &t_up, &t_down) & GP_WENT_LOW){
active = 1;
COMPUTE_RC_CHAN(2);
}
if(gpio_get_status(GPIO_RC3, &t_up, &t_down) & GP_WENT_LOW){
active = 1;
COMPUTE_RC_CHAN(3);
}
if(active){
brd->rc_reset_timeout = timestamp_from_now_us(1000000);
}
}
static void gpio_get_description(struct udevice *dev, const char *bank_name,
int offset, int *flagsp)
{
char buf[80];
int ret;
ret = gpio_get_function(dev, offset, NULL);
if (ret < 0)
goto err;
if (!(*flagsp & FLAG_SHOW_ALL) && ret == GPIOF_UNUSED)
return;
if ((*flagsp & FLAG_SHOW_BANK) && bank_name) {
if (*flagsp & FLAG_SHOW_NEWLINE) {
putc('\n');
*flagsp &= ~FLAG_SHOW_NEWLINE;
}
printf("Bank %s:\n", bank_name);
*flagsp &= ~FLAG_SHOW_BANK;
}
ret = gpio_get_status(dev, offset, buf, sizeof(buf));
if (ret)
goto err;
printf("%s\n", buf);
return;
err:
printf("Error %d\n", ret);
}
/* Test that gpio_request() copies its string */
static int dm_test_gpio_copy(struct dm_test_state *dms)
{
unsigned int offset, gpio;
struct udevice *dev;
char buf[80], name[10];
ut_assertok(gpio_lookup_name("b6", &dev, &offset, &gpio));
strcpy(name, "odd_name");
ut_assertok(gpio_request(gpio, name));
sandbox_gpio_set_direction(dev, offset, 1);
sandbox_gpio_set_value(dev, offset, 1);
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
strcpy(name, "nothing");
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
return 0;
}
/* Test that gpio_requestf() works as expected */
static int dm_test_gpio_requestf(struct dm_test_state *dms)
{
unsigned int offset, gpio;
struct udevice *dev;
char buf[80];
ut_assertok(gpio_lookup_name("b5", &dev, &offset, &gpio));
ut_assertok(gpio_requestf(gpio, "testing %d %s", 1, "hi"));
sandbox_gpio_set_direction(dev, offset, 1);
sandbox_gpio_set_value(dev, offset, 1);
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b5: output: 1 [x] testing 1 hi", buf);
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_function);
/* Cannot get a value until it is reserved */
ut_asserteq(-EBUSY, gpio_get_value(gpio + 1));
/*
* Now some tests that use the 'sandbox' back door. All GPIOs
* should default to input, include b4 that we are using here.
*/
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: input: 0 [ ]", buf);
/* Change it to an output */
sandbox_gpio_set_direction(dev, offset, 1);
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: output: 0 [ ]", buf);
sandbox_gpio_set_value(dev, offset, 1);
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: output: 1 [ ]", buf);
ut_assertok(gpio_request(gpio, "testing"));
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: output: 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(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: output: 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(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: input: 1 [x] testing", buf);
sandbox_gpio_set_value(dev, offset, 0);
ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: input: 0 [x] testing", buf);
ut_assertok(gpio_free(gpio));
ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
ut_asserteq_str("b4: input: 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);
return 0;
}