dev/i2c/bus.cc

56     : BasicPioDevice(p, 0x1000), scl(1), sda(1), state(IDLE), currBit(7),
68  * of sda and scl.
75     pkt->setRaw<uint8_t>((sda << 1) | scl);
125                 message |= sda << currBit;
138                 sda = 0; /* Ack */
143                 message |= sda << currBit;
149                 sda = 0; /* Ack */
154                 sda = (message >> currBit) & 0x01;
157                 if (!sda) /* Check for ack from the bus master. */
181         sda = (msg & 2) ? 1 : sda;
185         sda = (msg & 2) ? 0 : sda;
220     SERIALIZE_SCALAR(sda);
232     UNSERIALIZE_SCALAR(sda);