#define I2C_MAX_OFFSET_LEN 4
+/* Useful debugging function */
+void i2c_dump_msgs(struct i2c_msg *msg, int nmsgs)
+{
+ int i;
+
+ for (i = 0; i < nmsgs; i++) {
+ struct i2c_msg *m = &msg[i];
+
+ printf(" %s %x len=%x", m->flags & I2C_M_RD ? "R" : "W",
+ msg->addr, msg->len);
+ if (!(m->flags & I2C_M_RD))
+ printf(": %x", m->buf[0]);
+ printf("\n");
+ }
+}
+
/**
* i2c_setup_offset() - Set up a new message with a chip offset
*
}
}
+int dm_i2c_xfer(struct udevice *dev, struct i2c_msg *msg, int nmsgs)
+{
+ struct udevice *bus = dev_get_parent(dev);
+ struct dm_i2c_ops *ops = i2c_get_ops(bus);
+
+ if (!ops->xfer)
+ return -ENOSYS;
+
+ return ops->xfer(bus, msg, nmsgs);
+}
+
+int dm_i2c_reg_read(struct udevice *dev, uint offset)
+{
+ uint8_t val;
+ int ret;
+
+ ret = dm_i2c_read(dev, offset, &val, 1);
+ if (ret < 0)
+ return ret;
+
+ return val;
+}
+
+int dm_i2c_reg_write(struct udevice *dev, uint offset, uint value)
+{
+ uint8_t val = value;
+
+ return dm_i2c_write(dev, offset, &val, 1);
+}
+
/**
* i2c_probe_chip() - probe for a chip on a bus
*
snprintf(name, sizeof(name), "generic_%x", chip_addr);
str = strdup(name);
+ if (!str)
+ return -ENOMEM;
ret = device_bind_driver(bus, "i2c_generic_chip_drv", str, &dev);
debug("%s: device_bind_driver: ret=%d\n", __func__, ret);
if (ret)
return ret;
}
-int i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
+int dm_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
{
struct dm_i2c_ops *ops = i2c_get_ops(bus);
- struct dm_i2c_bus *i2c = bus->uclass_priv;
+ struct dm_i2c_bus *i2c = dev_get_uclass_priv(bus);
int ret;
/*
return 0;
}
-/*
- * i2c_get_bus_speed:
- *
- * Returns speed of selected I2C bus in Hz
- */
-int i2c_get_bus_speed(struct udevice *bus)
+int dm_i2c_get_bus_speed(struct udevice *bus)
{
struct dm_i2c_ops *ops = i2c_get_ops(bus);
- struct dm_i2c_bus *i2c = bus->uclass_priv;
+ struct dm_i2c_bus *i2c = dev_get_uclass_priv(bus);
if (!ops->get_bus_speed)
return i2c->speed_hz;
return 0;
}
+int i2c_get_chip_offset_len(struct udevice *dev)
+{
+ struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);
+
+ return chip->offset_len;
+}
+
int i2c_deblock(struct udevice *bus)
{
struct dm_i2c_ops *ops = i2c_get_ops(bus);
static int i2c_post_probe(struct udevice *dev)
{
- struct dm_i2c_bus *i2c = dev->uclass_priv;
+ struct dm_i2c_bus *i2c = dev_get_uclass_priv(dev);
i2c->speed_hz = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
"clock-frequency", 100000);
- return i2c_set_bus_speed(dev, i2c->speed_hz);
+ return dm_i2c_set_bus_speed(dev, i2c->speed_hz);
}
static int i2c_post_bind(struct udevice *dev)