cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/ethernet/aquantia/atlantic/aq_hw_utils.c

/*
 * aQuantia Corporation Network Driver
 * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 */

/* File aq_hw_utils.c: Definitions of helper functions used across
 * hardware layer.
 */

#include "aq_hw_utils.h"
#include "aq_hw.h"


void aq_hw_write_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift, u32 val) { if (msk ^ ~0) { u32 reg_old, reg_new; reg_old = aq_hw_read_reg(aq_hw, addr); reg_new = (reg_old & (~msk)) | (val << shift); if (reg_old != reg_new) aq_hw_write_reg(aq_hw, addr, reg_new); } else { aq_hw_write_reg(aq_hw, addr, val); } }

Contributors

PersonTokensPropCommitsCommitProp
David VomLehn89100.00%1100.00%
Total89100.00%1100.00%


u32 aq_hw_read_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift) { return ((aq_hw_read_reg(aq_hw, addr) & msk) >> shift); }

Contributors

PersonTokensPropCommitsCommitProp
David VomLehn35100.00%1100.00%
Total35100.00%1100.00%


u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg) { u32 value = readl(hw->mmio + reg); if ((~0U) == value && (~0U) == readl(hw->mmio + hw->not_ff_addr)) aq_utils_obj_set(&hw->header.flags, AQ_HW_FLAG_ERR_UNPLUG); return value; }

Contributors

PersonTokensPropCommitsCommitProp
David VomLehn65100.00%1100.00%
Total65100.00%1100.00%


void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value) { writel(value, hw->mmio + reg); }

Contributors

PersonTokensPropCommitsCommitProp
David VomLehn27100.00%1100.00%
Total27100.00%1100.00%


int aq_hw_err_from_flags(struct aq_hw_s *hw) { int err = 0; if (aq_utils_obj_test(&hw->header.flags, AQ_HW_FLAG_ERR_UNPLUG)) { err = -ENXIO; goto err_exit; } if (aq_utils_obj_test(&hw->header.flags, AQ_HW_FLAG_ERR_HW)) { err = -EIO; goto err_exit; } err_exit: return err; }

Contributors

PersonTokensPropCommitsCommitProp
David VomLehn68100.00%1100.00%
Total68100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
David VomLehn292100.00%1100.00%
Total292100.00%1100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.