diff options
Diffstat (limited to 'drivers/spi/sandbox_spi.c')
-rw-r--r-- | drivers/spi/sandbox_spi.c | 60 |
1 files changed, 42 insertions, 18 deletions
diff --git a/drivers/spi/sandbox_spi.c b/drivers/spi/sandbox_spi.c index 755f176861..0564d8b55e 100644 --- a/drivers/spi/sandbox_spi.c +++ b/drivers/spi/sandbox_spi.c @@ -28,21 +28,22 @@ # define CONFIG_SPI_IDLE_VAL 0xFF #endif -const char *sandbox_spi_parse_spec(const char *arg, unsigned long *bus, - unsigned long *cs) -{ - char *endp; - - *bus = simple_strtoul(arg, &endp, 0); - if (*endp != ':' || *bus >= CONFIG_SANDBOX_SPI_MAX_BUS) - return NULL; - - *cs = simple_strtoul(endp + 1, &endp, 0); - if (*endp != ':' || *cs >= CONFIG_SANDBOX_SPI_MAX_CS) - return NULL; - - return endp + 1; -} +/** + * struct sandbox_spi_priv - Sandbox SPI private data + * + * Helper struct to keep track of the sandbox SPI bus internal state. It is + * used in unit tests to verify that dm spi functions update the bus + * speed/mode properly (for instance, when jumping back and forth between spi + * slaves claiming the bus, we need to make sure that the bus speed is updated + * accordingly for each slave). + * + * @speed: Current bus speed. + * @mode: Current bus mode. + */ +struct sandbox_spi_priv { + uint speed; + uint mode; +}; __weak int sandbox_spi_get_emul(struct sandbox_state *state, struct udevice *bus, struct udevice *slave, @@ -51,6 +52,20 @@ __weak int sandbox_spi_get_emul(struct sandbox_state *state, return -ENOENT; } +uint sandbox_spi_get_speed(struct udevice *dev) +{ + struct sandbox_spi_priv *priv = dev_get_priv(dev); + + return priv->speed; +} + +uint sandbox_spi_get_mode(struct udevice *dev) +{ + struct sandbox_spi_priv *priv = dev_get_priv(dev); + + return priv->mode; +} + static int sandbox_spi_xfer(struct udevice *slave, unsigned int bitlen, const void *dout, void *din, unsigned long flags) { @@ -72,7 +87,7 @@ static int sandbox_spi_xfer(struct udevice *slave, unsigned int bitlen, return -EINVAL; } - busnum = bus->seq; + busnum = dev_seq(bus); cs = spi_chip_select(slave); if (busnum >= CONFIG_SANDBOX_SPI_MAX_BUS || cs >= CONFIG_SANDBOX_SPI_MAX_CS) { @@ -106,19 +121,27 @@ static int sandbox_spi_xfer(struct udevice *slave, unsigned int bitlen, static int sandbox_spi_set_speed(struct udevice *bus, uint speed) { + struct sandbox_spi_priv *priv = dev_get_priv(bus); + + priv->speed = speed; + return 0; } static int sandbox_spi_set_mode(struct udevice *bus, uint mode) { + struct sandbox_spi_priv *priv = dev_get_priv(bus); + + priv->mode = mode; + return 0; } static int sandbox_cs_info(struct udevice *bus, uint cs, struct spi_cs_info *info) { - /* Always allow activity on CS 0 */ - if (cs >= 1) + /* Always allow activity on CS 0, CS 1 */ + if (cs >= 2) return -EINVAL; return 0; @@ -152,4 +175,5 @@ U_BOOT_DRIVER(sandbox_spi) = { .id = UCLASS_SPI, .of_match = sandbox_spi_ids, .ops = &sandbox_spi_ops, + .priv_auto = sizeof(struct sandbox_spi_priv), }; |