#define DEB2(fmt, args...) do { if (i2c_debug>=2) printk(fmt, ## args); } while(0)
#define DEB3(fmt, args...) do { if (i2c_debug>=3) printk(fmt, ## args); } while(0)
-static int i2c_debug=0;
+static int i2c_debug;
#define pca_outw(adap, reg, val) adap->write_byte(adap, reg, val)
#define pca_inw(adap, reg) adap->read_byte(adap, reg)
int numbytes = 0;
int state;
int ret;
+ int timeout = 100;
- state = pca_status(adap);
- if ( state != 0xF8 ) {
- dev_dbg(&i2c_adap->dev, "bus is not idle. status is %#04x\n", state );
- /* FIXME: what to do. Force stop ? */
- return -EREMOTEIO;
+ while ((state = pca_status(adap)) != 0xf8 && timeout--) {
+ msleep(10);
+ }
+ if (state != 0xf8) {
+ dev_dbg(&i2c_adap->dev, "bus is not idle. status is %#04x\n", state);
+ return -EIO;
}
DEB1("{{{ XFER %d messages\n", num);
return 0;
}
-static struct i2c_algorithm pca_algo = {
- .name = "PCA9564 algorithm",
- .id = I2C_ALGO_PCA,
+static const struct i2c_algorithm pca_algo = {
.master_xfer = pca_xfer,
.functionality = pca_func,
};
int rval;
/* register new adapter to i2c module... */
-
- adap->id |= pca_algo.id;
adap->algo = &pca_algo;
adap->timeout = 100; /* default values, should */
adap->retries = 3; /* be replaced by defines */
- rval = pca_init(pca_adap);
+ if ((rval = pca_init(pca_adap)))
+ return rval;
- if (!rval)
- i2c_add_adapter(adap);
+ rval = i2c_add_adapter(adap);
return rval;
}