/* Test that sandbox SPI works correctly */
static int dm_test_spi_xfer(struct dm_test_state *dms)
{
struct spi_slave *slave;
struct udevice *bus;
const int busnum = 0, cs = 0, mode = 0;
const char dout[5] = {0x9f};
unsigned char din[5];
ut_assertok(spi_get_bus_and_cs(busnum, cs, 1000000, mode, NULL, 0,
&bus, &slave));
ut_assertok(spi_claim_bus(slave));
ut_assertok(spi_xfer(slave, 40, dout, din,
SPI_XFER_BEGIN | SPI_XFER_END));
ut_asserteq(0xff, din[0]);
ut_asserteq(0x20, din[1]);
ut_asserteq(0x20, din[2]);
ut_asserteq(0x15, din[3]);
spi_release_bus(slave);
/*
* Since we are about to destroy all devices, we must tell sandbox
* to forget the emulation device
*/
#ifdef CONFIG_DM_SPI_FLASH
sandbox_sf_unbind_emul(state_get_current(), busnum, cs);
#endif
return 0;
}
int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode,
struct udevice **devp)
{
struct spi_slave *slave;
struct udevice *bus;
char *str;
int ret;
#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_USE_TINY_PRINTF)
str = "spi_flash";
#else
char name[30];
snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs);
str = strdup(name);
#endif
ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode,
"spi_flash_std", str, &bus, &slave);
if (ret)
return ret;
*devp = slave->dev;
return 0;
}
/* Compatibility function - to be removed */
struct spi_slave *spi_setup_slave(unsigned int busnum, unsigned int cs,
unsigned int speed, unsigned int mode)
{
struct spi_slave *slave;
struct udevice *dev;
int ret;
ret = spi_get_bus_and_cs(busnum, cs, speed, mode, NULL, 0, &dev,
&slave);
if (ret)
return NULL;
return slave;
}
int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode,
struct udevice **devp)
{
struct spi_slave *slave;
struct udevice *bus;
char name[20], *str;
int ret;
snprintf(name, sizeof(name), "%d:%d", busnum, cs);
str = strdup(name);
ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode,
"spi_flash_std", str, &bus, &slave);
if (ret)
return ret;
*devp = slave->dev;
return 0;
}
/* Test that we can find buses and chip-selects */
static int dm_test_spi_find(struct dm_test_state *dms)
{
struct sandbox_state *state = state_get_current();
struct spi_slave *slave;
struct udevice *bus, *dev;
const int busnum = 0, cs = 0, mode = 0, speed = 1000000, cs_b = 1;
struct spi_cs_info info;
int of_offset;
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_SPI, busnum,
false, &bus));
/*
* spi_post_bind() will bind devices to chip selects. Check this then
* remove the emulation and the slave device.
*/
ut_asserteq(0, uclass_get_device_by_seq(UCLASS_SPI, busnum, &bus));
ut_assertok(spi_cs_info(bus, cs, &info));
of_offset = info.dev->of_offset;
device_remove(info.dev);
device_unbind(info.dev);
/*
* Even though the device is gone, the sandbox SPI drivers always
* reports that CS 0 is present
*/
ut_assertok(spi_cs_info(bus, cs, &info));
ut_asserteq_ptr(NULL, info.dev);
/* This finds nothing because we removed the device */
ut_asserteq(-ENODEV, spi_find_bus_and_cs(busnum, cs, &bus, &dev));
ut_asserteq(-ENODEV, spi_get_bus_and_cs(busnum, cs, speed, mode,
NULL, 0, &bus, &slave));
/*
* This forces the device to be re-added, but there is no emulation
* connected so the probe will fail. We require that bus is left
* alone on failure, and that the spi_get_bus_and_cs() does not add
* a 'partially-inited' device.
*/
ut_asserteq(-ENODEV, spi_find_bus_and_cs(busnum, cs, &bus, &dev));
ut_asserteq(-ENOENT, spi_get_bus_and_cs(busnum, cs, speed, mode,
"spi_flash_std", "name", &bus,
&slave));
sandbox_sf_unbind_emul(state_get_current(), busnum, cs);
ut_assertok(spi_cs_info(bus, cs, &info));
ut_asserteq_ptr(NULL, info.dev);
/* Add the emulation and try again */
ut_assertok(sandbox_sf_bind_emul(state, busnum, cs, bus, of_offset,
"name"));
ut_assertok(spi_find_bus_and_cs(busnum, cs, &bus, &dev));
ut_assertok(spi_get_bus_and_cs(busnum, cs, speed, mode,
"spi_flash_std", "name", &bus, &slave));
ut_assertok(spi_cs_info(bus, cs, &info));
ut_asserteq_ptr(info.dev, slave->dev);
/* We should be able to add something to another chip select */
ut_assertok(sandbox_sf_bind_emul(state, busnum, cs_b, bus, of_offset,
"name"));
ut_assertok(spi_get_bus_and_cs(busnum, cs_b, speed, mode,
"spi_flash_std", "name", &bus, &slave));
ut_assertok(spi_cs_info(bus, cs_b, &info));
ut_asserteq_ptr(info.dev, slave->dev);
/*
* Since we are about to destroy all devices, we must tell sandbox
* to forget the emulation device
*/
sandbox_sf_unbind_emul(state_get_current(), busnum, cs);
sandbox_sf_unbind_emul(state_get_current(), busnum, cs_b);
return 0;
}
