32 i2c_drive_scl(struct nvkm_i2c_port *port, int state)  in i2c_drive_scl()  argument
34 	port->func->drive_scl(port, state);  in i2c_drive_scl()
38 i2c_drive_sda(struct nvkm_i2c_port *port, int state)  in i2c_drive_sda()  argument
40 	port->func->drive_sda(port, state);  in i2c_drive_sda()
44 i2c_sense_scl(struct nvkm_i2c_port *port)  in i2c_sense_scl()  argument
46 	return port->func->sense_scl(port);  in i2c_sense_scl()
50 i2c_sense_sda(struct nvkm_i2c_port *port)  in i2c_sense_sda()  argument
52 	return port->func->sense_sda(port);  in i2c_sense_sda()
56 i2c_delay(struct nvkm_i2c_port *port, u32 nsec)  in i2c_delay()  argument
62 i2c_raise_scl(struct nvkm_i2c_port *port)  in i2c_raise_scl()  argument
66 	i2c_drive_scl(port, 1);  in i2c_raise_scl()
68 		i2c_delay(port, T_RISEFALL);  in i2c_raise_scl()
69 	} while (!i2c_sense_scl(port) && --timeout);  in i2c_raise_scl()
75 i2c_start(struct nvkm_i2c_port *port)  in i2c_start()  argument
79 	if (!i2c_sense_scl(port) ||  in i2c_start()
80 	    !i2c_sense_sda(port)) {  in i2c_start()
81 		i2c_drive_scl(port, 0);  in i2c_start()
82 		i2c_drive_sda(port, 1);  in i2c_start()
83 		if (!i2c_raise_scl(port))  in i2c_start()
87 	i2c_drive_sda(port, 0);  in i2c_start()
88 	i2c_delay(port, T_HOLD);  in i2c_start()
89 	i2c_drive_scl(port, 0);  in i2c_start()
90 	i2c_delay(port, T_HOLD);  in i2c_start()
95 i2c_stop(struct nvkm_i2c_port *port)  in i2c_stop()  argument
97 	i2c_drive_scl(port, 0);  in i2c_stop()
98 	i2c_drive_sda(port, 0);  in i2c_stop()
99 	i2c_delay(port, T_RISEFALL);  in i2c_stop()
101 	i2c_drive_scl(port, 1);  in i2c_stop()
102 	i2c_delay(port, T_HOLD);  in i2c_stop()
103 	i2c_drive_sda(port, 1);  in i2c_stop()
104 	i2c_delay(port, T_HOLD);  in i2c_stop()
108 i2c_bitw(struct nvkm_i2c_port *port, int sda)  in i2c_bitw()  argument
110 	i2c_drive_sda(port, sda);  in i2c_bitw()
111 	i2c_delay(port, T_RISEFALL);  in i2c_bitw()
113 	if (!i2c_raise_scl(port))  in i2c_bitw()
115 	i2c_delay(port, T_HOLD);  in i2c_bitw()
117 	i2c_drive_scl(port, 0);  in i2c_bitw()
118 	i2c_delay(port, T_HOLD);  in i2c_bitw()
123 i2c_bitr(struct nvkm_i2c_port *port)  in i2c_bitr()  argument
127 	i2c_drive_sda(port, 1);  in i2c_bitr()
128 	i2c_delay(port, T_RISEFALL);  in i2c_bitr()
130 	if (!i2c_raise_scl(port))  in i2c_bitr()
132 	i2c_delay(port, T_HOLD);  in i2c_bitr()
134 	sda = i2c_sense_sda(port);  in i2c_bitr()
136 	i2c_drive_scl(port, 0);  in i2c_bitr()
137 	i2c_delay(port, T_HOLD);  in i2c_bitr()
142 i2c_get_byte(struct nvkm_i2c_port *port, u8 *byte, bool last)  in i2c_get_byte()  argument
148 		bit = i2c_bitr(port);  in i2c_get_byte()
154 	return i2c_bitw(port, last ? 1 : 0);  in i2c_get_byte()
158 i2c_put_byte(struct nvkm_i2c_port *port, u8 byte)  in i2c_put_byte()  argument
162 		ret = i2c_bitw(port, !!(byte & (1 << i)));  in i2c_put_byte()
167 	ret = i2c_bitr(port);  in i2c_put_byte()
174 i2c_addr(struct nvkm_i2c_port *port, struct i2c_msg *msg)  in i2c_addr()  argument
179 	return i2c_put_byte(port, addr);  in i2c_addr()
185 	struct nvkm_i2c_port *port = adap->algo_data;  in i2c_bit_xfer()  local
189 	ret = nvkm_i2c(port)->acquire(port, nsecs_to_jiffies(T_TIMEOUT));  in i2c_bit_xfer()
197 		ret = i2c_start(port);  in i2c_bit_xfer()
199 			ret = i2c_addr(port, msg);  in i2c_bit_xfer()
203 				ret = i2c_get_byte(port, ptr++, !remaining);  in i2c_bit_xfer()
206 				ret = i2c_put_byte(port, *ptr++);  in i2c_bit_xfer()
212 	i2c_stop(port);  in i2c_bit_xfer()
213 	nvkm_i2c(port)->release(port);  in i2c_bit_xfer()