dprintk(4, "%s()\n", __func__);
au0828_write(dev, REG_2FF, 0x01);
- au0828_write(dev, REG_202, 0x07);
+
+ /* FIXME: There is a problem with i2c communications with xc5000 that
+ requires us to slow down the i2c clock until we have a better
+ strategy (such as using the secondary i2c bus to do firmware
+ loading */
+ if ((msg->addr << 1) == 0xc2) {
+ au0828_write(dev, REG_202, 0x40);
+ } else {
+ au0828_write(dev, REG_202, 0x07);
+ }
/* Hardware needs 8 bit addresses */
au0828_write(dev, REG_203, msg->addr << 1);
dprintk(4, "SEND: %02x\n", msg->addr);
+ /* Deal with i2c_scan */
+ if (msg->len == 0) {
+ /* The analog tuner detection code makes use of the SMBUS_QUICK
+ message (which involves a zero length i2c write). To avoid
+ checking the status register when we didn't strobe out any
+ actual bytes to the bus, just do a read check. This is
+ consistent with how I saw i2c device checking done in the
+ USB trace of the Windows driver */
+ au0828_write(dev, REG_200, 0x20);
+ if (!i2c_wait_done(i2c_adap))
+ return -EIO;
+
+ if (i2c_wait_read_ack(i2c_adap))
+ return -EIO;
+
+ return 0;
+ }
+
for (i = 0; i < msg->len;) {
dprintk(4, " %02x\n", msg->buf[i]);
dprintk(4, "%s()\n", __func__);
au0828_write(dev, REG_2FF, 0x01);
- au0828_write(dev, REG_202, 0x07);
+
+ /* FIXME: There is a problem with i2c communications with xc5000 that
+ requires us to slow down the i2c clock until we have a better
+ strategy (such as using the secondary i2c bus to do firmware
+ loading */
+ if ((msg->addr << 1) == 0xc2) {
+ au0828_write(dev, REG_202, 0x40);
+ } else {
+ au0828_write(dev, REG_202, 0x07);
+ }
/* Hardware needs 8 bit addresses */
au0828_write(dev, REG_203, msg->addr << 1);