54 static void ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl);
55 static void ixgbe_lower_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl);
56 static s32 ixgbe_set_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl, bool data);
57 static bool ixgbe_get_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl);
2299           u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_i2c_start()  local
2303           i2cctl |= IXGBE_I2C_BB_EN_BY_MAC(hw);  in ixgbe_i2c_start()
2306           ixgbe_set_i2c_data(hw, &i2cctl, 1);  in ixgbe_i2c_start()
2307           ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_start()
2312           ixgbe_set_i2c_data(hw, &i2cctl, 0);  in ixgbe_i2c_start()
2317           ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_start()
2334           u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_i2c_stop()  local
2342           ixgbe_set_i2c_data(hw, &i2cctl, 0);  in ixgbe_i2c_stop()
2343           ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_stop()
2348           ixgbe_set_i2c_data(hw, &i2cctl, 1);  in ixgbe_i2c_stop()
2354                     i2cctl &= ~bb_en_bit;  in ixgbe_i2c_stop()
2355                     i2cctl |= data_oe_bit | clk_oe_bit;  in ixgbe_i2c_stop()
2356                     IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), i2cctl);  in ixgbe_i2c_stop()
2393           u32 i2cctl;  in ixgbe_clock_out_i2c_byte()  local
2407           i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_clock_out_i2c_byte()
2408           i2cctl |= IXGBE_I2C_DATA_OUT_BY_MAC(hw);  in ixgbe_clock_out_i2c_byte()
2409           i2cctl |= IXGBE_I2C_DATA_OE_N_EN_BY_MAC(hw);  in ixgbe_clock_out_i2c_byte()
2410           IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), i2cctl);  in ixgbe_clock_out_i2c_byte()
2427           u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_get_i2c_ack()  local
2434                     i2cctl |= IXGBE_I2C_DATA_OUT_BY_MAC(hw);  in ixgbe_get_i2c_ack()
2435                     i2cctl |= data_oe_bit;  in ixgbe_get_i2c_ack()
2436                     IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), i2cctl);  in ixgbe_get_i2c_ack()
2439           ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_get_i2c_ack()
2447                     i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_get_i2c_ack()
2448                     ack = ixgbe_get_i2c_data(hw, &i2cctl);  in ixgbe_get_i2c_ack()
2460           ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_get_i2c_ack()
2477           u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_clock_in_i2c_bit()  local
2483                     i2cctl |= IXGBE_I2C_DATA_OUT_BY_MAC(hw);  in ixgbe_clock_in_i2c_bit()
2484                     i2cctl |= data_oe_bit;  in ixgbe_clock_in_i2c_bit()
2485                     IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), i2cctl);  in ixgbe_clock_in_i2c_bit()
2488           ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_clock_in_i2c_bit()
2493           i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_clock_in_i2c_bit()
2494           *data = ixgbe_get_i2c_data(hw, &i2cctl);  in ixgbe_clock_in_i2c_bit()
2496           ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_clock_in_i2c_bit()
2512           u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_clock_out_i2c_bit()  local
2516           status = ixgbe_set_i2c_data(hw, &i2cctl, data);  in ixgbe_clock_out_i2c_bit()
2518                     ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_clock_out_i2c_bit()
2523                     ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_clock_out_i2c_bit()
2546 static void ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl)  in ixgbe_raise_i2c_clk()  argument
2556                     *i2cctl |= clk_oe_bit;  in ixgbe_raise_i2c_clk()
2557                     IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_raise_i2c_clk()
2561                     *i2cctl |= IXGBE_I2C_CLK_OUT_BY_MAC(hw);  in ixgbe_raise_i2c_clk()
2563                     IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_raise_i2c_clk()
2582 static void ixgbe_lower_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl)  in ixgbe_lower_i2c_clk()  argument
2586           *i2cctl &= ~(IXGBE_I2C_CLK_OUT_BY_MAC(hw));  in ixgbe_lower_i2c_clk()
2587           *i2cctl &= ~IXGBE_I2C_CLK_OE_N_EN_BY_MAC(hw);  in ixgbe_lower_i2c_clk()
2589           IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_lower_i2c_clk()
2605 static s32 ixgbe_set_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl, bool data)  in ixgbe_set_i2c_data()  argument
2613                     *i2cctl |= IXGBE_I2C_DATA_OUT_BY_MAC(hw);  in ixgbe_set_i2c_data()
2615                     *i2cctl &= ~(IXGBE_I2C_DATA_OUT_BY_MAC(hw));  in ixgbe_set_i2c_data()
2616           *i2cctl &= ~data_oe_bit;  in ixgbe_set_i2c_data()
2618           IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_set_i2c_data()
2627                     *i2cctl |= data_oe_bit;  in ixgbe_set_i2c_data()
2628                     IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_set_i2c_data()
2633           *i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_set_i2c_data()
2634           if (data != ixgbe_get_i2c_data(hw, i2cctl)) {  in ixgbe_set_i2c_data()
2652 static bool ixgbe_get_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl)  in ixgbe_get_i2c_data()  argument
2660                     *i2cctl |= data_oe_bit;  in ixgbe_get_i2c_data()
2661                     IXGBE_WRITE_REG(hw, IXGBE_I2CCTL_BY_MAC(hw), *i2cctl);  in ixgbe_get_i2c_data()
2666           if (*i2cctl & IXGBE_I2C_DATA_IN_BY_MAC(hw))  in ixgbe_get_i2c_data()
2683           u32 i2cctl;  in ixgbe_i2c_bus_clear()  local
2689           i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL_BY_MAC(hw));  in ixgbe_i2c_bus_clear()
2691           ixgbe_set_i2c_data(hw, &i2cctl, 1);  in ixgbe_i2c_bus_clear()
2694                     ixgbe_raise_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_bus_clear()
2699                     ixgbe_lower_i2c_clk(hw, &i2cctl);  in ixgbe_i2c_bus_clear()