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/*
* Copyright (C) 1999 - 2010 Intel Corporation.
* Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
*
* This code was derived from the Intel e1000e Linux driver.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "pch_gbe.h"
#include "pch_gbe_phy.h"
#include "pch_gbe_api.h"
/* bus type values */
#define pch_gbe_bus_type_unknown 0
#define pch_gbe_bus_type_pci 1
#define pch_gbe_bus_type_pcix 2
#define pch_gbe_bus_type_pci_express 3
#define pch_gbe_bus_type_reserved 4
/* bus speed values */
#define pch_gbe_bus_speed_unknown 0
#define pch_gbe_bus_speed_33 1
#define pch_gbe_bus_speed_66 2
#define pch_gbe_bus_speed_100 3
#define pch_gbe_bus_speed_120 4
#define pch_gbe_bus_speed_133 5
#define pch_gbe_bus_speed_2500 6
#define pch_gbe_bus_speed_reserved 7
/* bus width values */
#define pch_gbe_bus_width_unknown 0
#define pch_gbe_bus_width_pcie_x1 1
#define pch_gbe_bus_width_pcie_x2 2
#define pch_gbe_bus_width_pcie_x4 4
#define pch_gbe_bus_width_32 5
#define pch_gbe_bus_width_64 6
#define pch_gbe_bus_width_reserved 7
/**
* pch_gbe_plat_get_bus_info - Obtain bus information for adapter
* @hw: Pointer to the HW structure
*/
static void pch_gbe_plat_get_bus_info(struct pch_gbe_hw *hw)
{
hw->bus.type = pch_gbe_bus_type_pci_express;
hw->bus.speed = pch_gbe_bus_speed_2500;
hw->bus.width = pch_gbe_bus_width_pcie_x1;
}
/**
* pch_gbe_plat_init_hw - Initialize hardware
* @hw: Pointer to the HW structure
* Returns:
* 0: Successfully
* Negative value: Failed-EBUSY
*/
static s32 pch_gbe_plat_init_hw(struct pch_gbe_hw *hw)
{
s32 ret_val;
ret_val = pch_gbe_phy_get_id(hw);
if (ret_val) {
struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
netdev_err(adapter->netdev, "pch_gbe_phy_get_id error\n");
return ret_val;
}
pch_gbe_phy_init_setting(hw);
/* Setup Mac interface option RGMII */
#ifdef PCH_GBE_MAC_IFOP_RGMII
pch_gbe_phy_set_rgmii(hw);
#endif
return ret_val;
}
static const struct pch_gbe_functions pch_gbe_ops = {
.get_bus_info = pch_gbe_plat_get_bus_info,
.init_hw = pch_gbe_plat_init_hw,
.read_phy_reg = pch_gbe_phy_read_reg_miic,
.write_phy_reg = pch_gbe_phy_write_reg_miic,
.reset_phy = pch_gbe_phy_hw_reset,
.sw_reset_phy = pch_gbe_phy_sw_reset,
.power_up_phy = pch_gbe_phy_power_up,
.power_down_phy = pch_gbe_phy_power_down,
.read_mac_addr = pch_gbe_mac_read_mac_addr
};
/**
* pch_gbe_plat_init_function_pointers - Init func ptrs
* @hw: Pointer to the HW structure
*/
static void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw)
{
/* Set PHY parameter */
hw->phy.reset_delay_us = PCH_GBE_PHY_RESET_DELAY_US;
/* Set function pointers */
hw->func = &pch_gbe_ops;
}
/**
* pch_gbe_hal_setup_init_funcs - Initializes function pointers
* @hw: Pointer to the HW structure
* Returns:
* 0: Successfully
* ENOSYS: Function is not registered
*/
s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
{
if (!hw->reg) {
struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
netdev_err(adapter->netdev, "ERROR: Registers not mapped\n");
return -ENOSYS;
}
pch_gbe_plat_init_function_pointers(hw);
return 0;
}
/**
* pch_gbe_hal_get_bus_info - Obtain bus information for adapter
* @hw: Pointer to the HW structure
*/
void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
{
if (!hw->func->get_bus_info) {
struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
netdev_err(adapter->netdev, "ERROR: configuration\n");
return;
}
hw->func->get_bus_info(hw);
}
/**
* pch_gbe_hal_init_hw - Initialize hardware
* @hw: Pointer to the HW structure
* Returns:
* 0: Successfully
* ENOSYS: Function is not registered
*/
s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
{
if (!hw->func->init_hw) {
struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
netdev_err(adapter->netdev, "ERROR: configuration\n");
return -ENOSYS;
}
return hw->func->init_hw(hw);
}
/**
* pch_gbe_hal_read_phy_reg - Reads PHY register
* @hw: Pointer to the HW structure
* @offset: The register to read
* @data: The buffer to store the 16-bit read.
* Returns:
* 0: Successfully
* Negative value: Failed
*/
s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset,
u16 *data)
{
if (!hw->func->read_phy_reg)
return 0;
return hw->func->read_phy_reg(hw, offset, data);
}
/**
* pch_gbe_hal_write_phy_reg - Writes PHY register
* @hw: Pointer to the HW structure
* @offset: The register to read
* @data: The value to write.
* Returns:
* 0: Successfully
* Negative value: Failed
*/
s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
u16 data)
{
if (!hw->func->write_phy_reg)
return 0;
return hw->func->write_phy_reg(hw, offset, data);
}
/**
* pch_gbe_hal_phy_hw_reset - Hard PHY reset
* @hw: Pointer to the HW structure
*/
void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
{
if (!hw->func->reset_phy) {
struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
netdev_err(adapter->netdev, "ERROR: configuration\n");
return;
}
hw->func->reset_phy(hw);
}
/**
* pch_gbe_hal_phy_sw_reset - Soft PHY reset
* @hw: Pointer to the HW structure
*/
void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
{
if (!hw->func->sw_reset_phy) {
struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
netdev_err(adapter->netdev, "ERROR: configuration\n");
return;
}
hw->func->sw_reset_phy(hw);
}
/**
* pch_gbe_hal_read_mac_addr - Reads MAC address
* @hw: Pointer to the HW structure
* Returns:
* 0: Successfully
* ENOSYS: Function is not registered
*/
s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
{
if (!hw->func->read_mac_addr) {
struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
netdev_err(adapter->netdev, "ERROR: configuration\n");
return -ENOSYS;
}
return hw->func->read_mac_addr(hw);
}
/**
* pch_gbe_hal_power_up_phy - Power up PHY
* @hw: Pointer to the HW structure
*/
void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw)
{
if (hw->func->power_up_phy)
hw->func->power_up_phy(hw);
}
/**
* pch_gbe_hal_power_down_phy - Power down PHY
* @hw: Pointer to the HW structure
*/
void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw)
{
if (hw->func->power_down_phy)
hw->func->power_down_phy(hw);
}
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