/* Altera TSE SGDMA and MSGDMA Linux driver * Copyright (C) 2014 Altera 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. * * This program is distributed in the hope 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 "altera_tse.h" #include "altera_utils.h" void tse_set_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask) { u32 value = csrrd32(ioaddr, offs); value |= bit_mask; csrwr32(value, ioaddr, offs); } void tse_clear_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask) { u32 value = csrrd32(ioaddr, offs); value &= ~bit_mask; csrwr32(value, ioaddr, offs); } int tse_bit_is_set(void __iomem *ioaddr, size_t offs, u32 bit_mask) { u32 value = csrrd32(ioaddr, offs); return (value & bit_mask) ? 1 : 0; } int tse_bit_is_clear(void __iomem *ioaddr, size_t offs, u32 bit_mask) { u32 value = csrrd32(ioaddr, offs); return (value & bit_mask) ? 0 : 1; }