47 static void ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl);
48 static void ixgbe_lower_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl);
49 static s32 ixgbe_set_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl, bool data);
50 static bool ixgbe_get_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl);
2223 	u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_i2c_start()  local
2227 	i2cctl |= IXGBE_I2C_BB_EN_BY_MAC(hw);  in ixgbe_i2c_start()
2230 	ixgbe_set_i2c_data(hw, &i2cctl, 1);  in ixgbe_i2c_start()
2231 	ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_start()
2236 	ixgbe_set_i2c_data(hw, &i2cctl, 0);  in ixgbe_i2c_start()
2241 	ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_start()
2258 	u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_i2c_stop()  local
2266 	ixgbe_set_i2c_data(hw, &i2cctl, 0);  in ixgbe_i2c_stop()
2267 	ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_stop()
2272 	ixgbe_set_i2c_data(hw, &i2cctl, 1);  in ixgbe_i2c_stop()
2278 		i2cctl &= ~bb_en_bit;  in ixgbe_i2c_stop()
2279 		i2cctl |= data_oe_bit | clk_oe_bit;  in ixgbe_i2c_stop()
2280 		IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), i2cctl);  in ixgbe_i2c_stop()
2317 	u32 i2cctl;  in ixgbe_clock_out_i2c_byte()  local
2331 	i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_clock_out_i2c_byte()
2332 	i2cctl |= IXGBE_I2C_DATA_OUT_BY_MAC(hw);  in ixgbe_clock_out_i2c_byte()
2333 	i2cctl |= IXGBE_I2C_DATA_OE_N_EN_BY_MAC(hw);  in ixgbe_clock_out_i2c_byte()
2334 	IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), i2cctl);  in ixgbe_clock_out_i2c_byte()
2351 	u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_get_i2c_ack()  local
2358 		i2cctl |= IXGBE_I2C_DATA_OUT_BY_MAC(hw);  in ixgbe_get_i2c_ack()
2359 		i2cctl |= data_oe_bit;  in ixgbe_get_i2c_ack()
2360 		IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), i2cctl);  in ixgbe_get_i2c_ack()
2363 	ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_get_i2c_ack()
2371 		i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_get_i2c_ack()
2372 		ack = ixgbe_get_i2c_data(hw, &i2cctl);  in ixgbe_get_i2c_ack()
2384 	ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_get_i2c_ack()
2401 	u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_clock_in_i2c_bit()  local
2407 		i2cctl |= IXGBE_I2C_DATA_OUT_BY_MAC(hw);  in ixgbe_clock_in_i2c_bit()
2408 		i2cctl |= data_oe_bit;  in ixgbe_clock_in_i2c_bit()
2409 		IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), i2cctl);  in ixgbe_clock_in_i2c_bit()
2412 	ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_clock_in_i2c_bit()
2417 	i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_clock_in_i2c_bit()
2418 	*data = ixgbe_get_i2c_data(hw, &i2cctl);  in ixgbe_clock_in_i2c_bit()
2420 	ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_clock_in_i2c_bit()
2436 	u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_clock_out_i2c_bit()  local
2440 	status = ixgbe_set_i2c_data(hw, &i2cctl, data);  in ixgbe_clock_out_i2c_bit()
2442 		ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_clock_out_i2c_bit()
2447 		ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_clock_out_i2c_bit()
2470 static void ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl)  in ixgbe_raise_i2c_clk()  argument
2480 		*i2cctl |= clk_oe_bit;  in ixgbe_raise_i2c_clk()
2481 		IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_raise_i2c_clk()
2485 		*i2cctl |= IXGBE_I2C_CLK_OUT_BY_MAC(hw);  in ixgbe_raise_i2c_clk()
2487 		IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_raise_i2c_clk()
2506 static void ixgbe_lower_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl)  in ixgbe_lower_i2c_clk()  argument
2510 	*i2cctl &= ~(IXGBE_I2C_CLK_OUT_BY_MAC(hw));  in ixgbe_lower_i2c_clk()
2511 	*i2cctl &= ~IXGBE_I2C_CLK_OE_N_EN_BY_MAC(hw);  in ixgbe_lower_i2c_clk()
2513 	IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_lower_i2c_clk()
2529 static s32 ixgbe_set_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl, bool data)  in ixgbe_set_i2c_data()  argument
2537 		*i2cctl |= IXGBE_I2C_DATA_OUT_BY_MAC(hw);  in ixgbe_set_i2c_data()
2539 		*i2cctl &= ~(IXGBE_I2C_DATA_OUT_BY_MAC(hw));  in ixgbe_set_i2c_data()
2540 	*i2cctl &= ~data_oe_bit;  in ixgbe_set_i2c_data()
2542 	IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_set_i2c_data()
2551 		*i2cctl |= data_oe_bit;  in ixgbe_set_i2c_data()
2552 		IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_set_i2c_data()
2557 	*i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_set_i2c_data()
2558 	if (data != ixgbe_get_i2c_data(hw, i2cctl)) {  in ixgbe_set_i2c_data()
2576 static bool ixgbe_get_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl)  in ixgbe_get_i2c_data()  argument
2584 		*i2cctl |= data_oe_bit;  in ixgbe_get_i2c_data()
2585 		IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_get_i2c_data()
2590 	if (*i2cctl & IXGBE_I2C_DATA_IN_BY_MAC(hw))  in ixgbe_get_i2c_data()
2607 	u32 i2cctl;  in ixgbe_i2c_bus_clear()  local
2613 	i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_i2c_bus_clear()
2615 	ixgbe_set_i2c_data(hw, &i2cctl, 1);  in ixgbe_i2c_bus_clear()
2618 		ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_bus_clear()
2623 		ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_bus_clear()