| /** |
| * Copyright (c) 2012-2013 Quantenna Communications, Inc. |
| * All rights reserved. |
| * |
| * 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; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * 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, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| **/ |
| |
| #include <linux/version.h> |
| #include <linux/module.h> |
| |
| #include <linux/proc_fs.h> |
| #include <linux/seq_file.h> |
| #include <linux/io.h> |
| |
| #include <asm/hardware.h> |
| |
| #include <asm/board/platform.h> |
| |
| #define TOPAZ_TQE_PROC_FILENAME "topaz_tqe" |
| |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,7,0) |
| static int topaz_tqe_stat_rd(struct seq_file *sfile, void *data) |
| { |
| int i; |
| struct { |
| uint32_t reg; |
| const char *name; |
| } regs[] = { |
| { TOPAZ_TQE_OUTPORT_EMAC0_CNT, "emac0", }, |
| { TOPAZ_TQE_OUTPORT_EMAC1_CNT, "emac1", }, |
| { TOPAZ_TQE_OUTPORT_WMAC_CNT, "wmac", }, |
| { TOPAZ_TQE_OUTPORT_LHOST_CNT, "lhost", }, |
| { TOPAZ_TQE_OUTPORT_MUC_CNT, "muc", }, |
| { TOPAZ_TQE_OUTPORT_DSP_CNT, "dsp", }, |
| { TOPAZ_TQE_OUTPORT_AUC_CNT, "auc", }, |
| { TOPAZ_TQE_OUTPORT_PCIE_CNT, "pcie", }, |
| { TOPAZ_TQE_DROP_CNT, "drop", }, |
| { TOPAZ_TQE_DROP_EMAC0_CNT, "emac0 d", }, |
| { TOPAZ_TQE_DROP_EMAC1_CNT, "emac1 d", }, |
| { TOPAZ_TQE_DROP_WMAC_CNT, "wmac d", }, |
| { TOPAZ_TQE_DROP_LHOST_CNT, "lhost d", }, |
| { TOPAZ_TQE_DROP_MUC_CNT, "muc d", }, |
| { TOPAZ_TQE_DROP_DSP_CNT, "dsp d", }, |
| { TOPAZ_TQE_DROP_AUC_CNT, "auc d", }, |
| { TOPAZ_TQE_DROP_PCIE_CNT, "pcie d", }, |
| }; |
| |
| for (i = 0; i < ARRAY_SIZE(regs); i++) { |
| uint32_t reg = readl(regs[i].reg); |
| seq_printf(sfile, "%8s = %u 0x%08x\n", regs[i].name, reg, reg); |
| } |
| |
| return 0; |
| } |
| |
| static int topaz_tqe_stat_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, topaz_tqe_stat_rd, NULL); |
| } |
| |
| static const struct file_operations topaz_tqe_stat_fops = { |
| .owner = THIS_MODULE, |
| .open = topaz_tqe_stat_open, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| #else |
| static int topaz_tqe_stat_rd(char *page, char **start, off_t offset, |
| int count, int *eof, void *data) |
| { |
| char *p = page; |
| int i; |
| struct { |
| uint32_t reg; |
| const char *name; |
| } regs[] = { |
| { TOPAZ_TQE_OUTPORT_EMAC0_CNT, "emac0", }, |
| { TOPAZ_TQE_OUTPORT_EMAC1_CNT, "emac1", }, |
| { TOPAZ_TQE_OUTPORT_WMAC_CNT, "wmac", }, |
| { TOPAZ_TQE_OUTPORT_LHOST_CNT, "lhost", }, |
| { TOPAZ_TQE_OUTPORT_MUC_CNT, "muc", }, |
| { TOPAZ_TQE_OUTPORT_DSP_CNT, "dsp", }, |
| { TOPAZ_TQE_OUTPORT_AUC_CNT, "auc", }, |
| { TOPAZ_TQE_OUTPORT_PCIE_CNT, "pcie", }, |
| { TOPAZ_TQE_DROP_CNT, "drop", }, |
| { TOPAZ_TQE_DROP_EMAC0_CNT, "emac0 d", }, |
| { TOPAZ_TQE_DROP_EMAC1_CNT, "emac1 d", }, |
| { TOPAZ_TQE_DROP_WMAC_CNT, "wmac d", }, |
| { TOPAZ_TQE_DROP_LHOST_CNT, "lhost d", }, |
| { TOPAZ_TQE_DROP_MUC_CNT, "muc d", }, |
| { TOPAZ_TQE_DROP_DSP_CNT, "dsp d", }, |
| { TOPAZ_TQE_DROP_AUC_CNT, "auc d", }, |
| { TOPAZ_TQE_DROP_PCIE_CNT, "pcie d", }, |
| }; |
| |
| for (i = 0; i < ARRAY_SIZE(regs); i++) { |
| uint32_t reg = readl(regs[i].reg); |
| p += sprintf(p, "%8s = %u 0x%08x\n", regs[i].name, reg, reg); |
| } |
| |
| return p - page; |
| } |
| #endif |
| |
| static int __init topaz_tqe_stat_init(void) |
| { |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,7,0) |
| if (!proc_create(TOPAZ_TQE_PROC_FILENAME, 0x444, NULL, &topaz_tqe_stat_fops)) |
| return -EEXIST; |
| |
| #else |
| if (!create_proc_read_entry(TOPAZ_TQE_PROC_FILENAME, 0, |
| NULL, topaz_tqe_stat_rd, NULL)) { |
| return -EEXIST; |
| } |
| #endif |
| return 0; |
| } |
| |
| late_initcall(topaz_tqe_stat_init); |
| |
| MODULE_DESCRIPTION("TQE"); |
| MODULE_AUTHOR("Quantenna"); |
| MODULE_LICENSE("GPL"); |