1/* Altera TSE SGDMA and MSGDMA Linux driver
2 * Copyright (C) 2014 Altera Corporation. All rights reserved
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program.  If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#include "altera_tse.h"
18#include "altera_utils.h"
19
20void tse_set_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask)
21{
22	u32 value = csrrd32(ioaddr, offs);
23	value |= bit_mask;
24	csrwr32(value, ioaddr, offs);
25}
26
27void tse_clear_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask)
28{
29	u32 value = csrrd32(ioaddr, offs);
30	value &= ~bit_mask;
31	csrwr32(value, ioaddr, offs);
32}
33
34int tse_bit_is_set(void __iomem *ioaddr, size_t offs, u32 bit_mask)
35{
36	u32 value = csrrd32(ioaddr, offs);
37	return (value & bit_mask) ? 1 : 0;
38}
39
40int tse_bit_is_clear(void __iomem *ioaddr, size_t offs, u32 bit_mask)
41{
42	u32 value = csrrd32(ioaddr, offs);
43	return (value & bit_mask) ? 0 : 1;
44}
45