diff options
Diffstat (limited to 'zephyr/shim/src/i2c.c')
| -rw-r--r-- | zephyr/shim/src/i2c.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/zephyr/shim/src/i2c.c b/zephyr/shim/src/i2c.c index ddd73e27f1..c42e9e9e75 100644 --- a/zephyr/shim/src/i2c.c +++ b/zephyr/shim/src/i2c.c @@ -16,6 +16,21 @@ i2c_devices[I2C_PORT(id)] = device_get_binding( \ DT_PROP_BY_PHANDLE(id, i2c_port, label)); +#define I2C_CONFIG_GPIO(id, type) \ + DT_ENUM_UPPER_TOKEN(DT_CHILD(DT_CHILD(id, config), type), enum_name) + +#define I2C_PORT_INIT(id) \ + COND_CODE_1(DT_NODE_EXISTS(DT_CHILD(id, config)), \ + ( \ + { \ + .name = DT_LABEL(id), \ + .port = I2C_PORT(id), \ + .kbps = DT_PROP(DT_CHILD(id, config), \ + frequency), \ + .scl = I2C_CONFIG_GPIO(id, scl), \ + .sda = I2C_CONFIG_GPIO(id, sda), \ + }, ), \ + ()) /* * Long term we will not need these, for now they're needed to get things to * build since these extern symbols are usually defined in @@ -24,7 +39,11 @@ * Since all the ports will eventually be handled by device tree. This will * be removed at that point. */ -const struct i2c_port_t i2c_ports[] = {}; +const struct i2c_port_t i2c_ports[] = { +#if DT_NODE_EXISTS(DT_PATH(named_i2c_ports)) + DT_FOREACH_CHILD(DT_PATH(named_i2c_ports), I2C_PORT_INIT) +#endif +}; const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); int i2c_get_line_levels(int port) |