kernel/drivers/media/platform/sti/c8sectpfe/c8sectpfe-debugfs.c

   1 /*
   2  * c8sectpfe-debugfs.c - C8SECTPFE STi DVB driver
   3  *
   4  * Copyright (c) STMicroelectronics 2015
   5  *
   6  * Author: Peter Griffin <peter.griffin@linaro.org>
   7  *
   8  * This program is free software: you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2  of
  10  * the License as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  */
  17 #include <linux/debugfs.h>
  18 #include <linux/device.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/io.h>
  21 #include <linux/kernel.h>
  22 #include <linux/seq_file.h>
  23 #include <linux/slab.h>
  24 #include <linux/types.h>
  25
  26 #include "c8sectpfe-debugfs.h"
  27
  28 #define dump_register(nm ...)                   \
  29 {                                               \
  30         .name   = #nm,                          \
  31         .offset = nm,                           \
  32 }
  33
  34 static const struct debugfs_reg32 fei_sys_regs[] = {
  35         dump_register(SYS_INPUT_ERR_STATUS),
  36         dump_register(SYS_OTHER_ERR_STATUS),
  37         dump_register(SYS_INPUT_ERR_MASK),
  38         dump_register(SYS_DMA_ROUTE),
  39         dump_register(SYS_INPUT_CLKEN),
  40         dump_register(IBENABLE_MASK),
  41         dump_register(SYS_OTHER_CLKEN),
  42         dump_register(SYS_CFG_NUM_IB),
  43         dump_register(SYS_CFG_NUM_MIB),
  44         dump_register(SYS_CFG_NUM_SWTS),
  45         dump_register(SYS_CFG_NUM_TSOUT),
  46         dump_register(SYS_CFG_NUM_CCSC),
  47         dump_register(SYS_CFG_NUM_RAM),
  48         dump_register(SYS_CFG_NUM_TP),
  49
  50         dump_register(C8SECTPFE_IB_IP_FMT_CFG(0)),
  51         dump_register(C8SECTPFE_IB_TAGBYTES_CFG(0)),
  52         dump_register(C8SECTPFE_IB_PID_SET(0)),
  53         dump_register(C8SECTPFE_IB_PKT_LEN(0)),
  54         dump_register(C8SECTPFE_IB_BUFF_STRT(0)),
  55         dump_register(C8SECTPFE_IB_BUFF_END(0)),
  56         dump_register(C8SECTPFE_IB_READ_PNT(0)),
  57         dump_register(C8SECTPFE_IB_WRT_PNT(0)),
  58         dump_register(C8SECTPFE_IB_PRI_THRLD(0)),
  59         dump_register(C8SECTPFE_IB_STAT(0)),
  60         dump_register(C8SECTPFE_IB_MASK(0)),
  61         dump_register(C8SECTPFE_IB_SYS(0)),
  62
  63         dump_register(C8SECTPFE_IB_IP_FMT_CFG(1)),
  64         dump_register(C8SECTPFE_IB_TAGBYTES_CFG(1)),
  65         dump_register(C8SECTPFE_IB_PID_SET(1)),
  66         dump_register(C8SECTPFE_IB_PKT_LEN(1)),
  67         dump_register(C8SECTPFE_IB_BUFF_STRT(1)),
  68         dump_register(C8SECTPFE_IB_BUFF_END(1)),
  69         dump_register(C8SECTPFE_IB_READ_PNT(1)),
  70         dump_register(C8SECTPFE_IB_WRT_PNT(1)),
  71         dump_register(C8SECTPFE_IB_PRI_THRLD(1)),
  72         dump_register(C8SECTPFE_IB_STAT(1)),
  73         dump_register(C8SECTPFE_IB_MASK(1)),
  74         dump_register(C8SECTPFE_IB_SYS(1)),
  75
  76         dump_register(C8SECTPFE_IB_IP_FMT_CFG(2)),
  77         dump_register(C8SECTPFE_IB_TAGBYTES_CFG(2)),
  78         dump_register(C8SECTPFE_IB_PID_SET(2)),
  79         dump_register(C8SECTPFE_IB_PKT_LEN(2)),
  80         dump_register(C8SECTPFE_IB_BUFF_STRT(2)),
  81         dump_register(C8SECTPFE_IB_BUFF_END(2)),
  82         dump_register(C8SECTPFE_IB_READ_PNT(2)),
  83         dump_register(C8SECTPFE_IB_WRT_PNT(2)),
  84         dump_register(C8SECTPFE_IB_PRI_THRLD(2)),
  85         dump_register(C8SECTPFE_IB_STAT(2)),
  86         dump_register(C8SECTPFE_IB_MASK(2)),
  87         dump_register(C8SECTPFE_IB_SYS(2)),
  88
  89         dump_register(C8SECTPFE_IB_IP_FMT_CFG(3)),
  90         dump_register(C8SECTPFE_IB_TAGBYTES_CFG(3)),
  91         dump_register(C8SECTPFE_IB_PID_SET(3)),
  92         dump_register(C8SECTPFE_IB_PKT_LEN(3)),
  93         dump_register(C8SECTPFE_IB_BUFF_STRT(3)),
  94         dump_register(C8SECTPFE_IB_BUFF_END(3)),
  95         dump_register(C8SECTPFE_IB_READ_PNT(3)),
  96         dump_register(C8SECTPFE_IB_WRT_PNT(3)),
  97         dump_register(C8SECTPFE_IB_PRI_THRLD(3)),
  98         dump_register(C8SECTPFE_IB_STAT(3)),
  99         dump_register(C8SECTPFE_IB_MASK(3)),
 100         dump_register(C8SECTPFE_IB_SYS(3)),
 101
 102         dump_register(C8SECTPFE_IB_IP_FMT_CFG(4)),
 103         dump_register(C8SECTPFE_IB_TAGBYTES_CFG(4)),
 104         dump_register(C8SECTPFE_IB_PID_SET(4)),
 105         dump_register(C8SECTPFE_IB_PKT_LEN(4)),
 106         dump_register(C8SECTPFE_IB_BUFF_STRT(4)),
 107         dump_register(C8SECTPFE_IB_BUFF_END(4)),
 108         dump_register(C8SECTPFE_IB_READ_PNT(4)),
 109         dump_register(C8SECTPFE_IB_WRT_PNT(4)),
 110         dump_register(C8SECTPFE_IB_PRI_THRLD(4)),
 111         dump_register(C8SECTPFE_IB_STAT(4)),
 112         dump_register(C8SECTPFE_IB_MASK(4)),
 113         dump_register(C8SECTPFE_IB_SYS(4)),
 114
 115         dump_register(C8SECTPFE_IB_IP_FMT_CFG(5)),
 116         dump_register(C8SECTPFE_IB_TAGBYTES_CFG(5)),
 117         dump_register(C8SECTPFE_IB_PID_SET(5)),
 118         dump_register(C8SECTPFE_IB_PKT_LEN(5)),
 119         dump_register(C8SECTPFE_IB_BUFF_STRT(5)),
 120         dump_register(C8SECTPFE_IB_BUFF_END(5)),
 121         dump_register(C8SECTPFE_IB_READ_PNT(5)),
 122         dump_register(C8SECTPFE_IB_WRT_PNT(5)),
 123         dump_register(C8SECTPFE_IB_PRI_THRLD(5)),
 124         dump_register(C8SECTPFE_IB_STAT(5)),
 125         dump_register(C8SECTPFE_IB_MASK(5)),
 126         dump_register(C8SECTPFE_IB_SYS(5)),
 127
 128         dump_register(C8SECTPFE_IB_IP_FMT_CFG(6)),
 129         dump_register(C8SECTPFE_IB_TAGBYTES_CFG(6)),
 130         dump_register(C8SECTPFE_IB_PID_SET(6)),
 131         dump_register(C8SECTPFE_IB_PKT_LEN(6)),
 132         dump_register(C8SECTPFE_IB_BUFF_STRT(6)),
 133         dump_register(C8SECTPFE_IB_BUFF_END(6)),
 134         dump_register(C8SECTPFE_IB_READ_PNT(6)),
 135         dump_register(C8SECTPFE_IB_WRT_PNT(6)),
 136         dump_register(C8SECTPFE_IB_PRI_THRLD(6)),
 137         dump_register(C8SECTPFE_IB_STAT(6)),
 138         dump_register(C8SECTPFE_IB_MASK(6)),
 139         dump_register(C8SECTPFE_IB_SYS(6)),
 140
 141         dump_register(DMA_CPU_ID),
 142         dump_register(DMA_CPU_VCR),
 143         dump_register(DMA_CPU_RUN),
 144         dump_register(DMA_CPU_PC),
 145
 146         dump_register(DMA_PER_TPn_DREQ_MASK),
 147         dump_register(DMA_PER_TPn_DACK_SET),
 148         dump_register(DMA_PER_TPn_DREQ),
 149         dump_register(DMA_PER_TPn_DACK),
 150         dump_register(DMA_PER_DREQ_MODE),
 151         dump_register(DMA_PER_STBUS_SYNC),
 152         dump_register(DMA_PER_STBUS_ACCESS),
 153         dump_register(DMA_PER_STBUS_ADDRESS),
 154         dump_register(DMA_PER_IDLE_INT),
 155         dump_register(DMA_PER_PRIORITY),
 156         dump_register(DMA_PER_MAX_OPCODE),
 157         dump_register(DMA_PER_MAX_CHUNK),
 158         dump_register(DMA_PER_PAGE_SIZE),
 159         dump_register(DMA_PER_MBOX_STATUS),
 160         dump_register(DMA_PER_MBOX_SET),
 161         dump_register(DMA_PER_MBOX_CLEAR),
 162         dump_register(DMA_PER_MBOX_MASK),
 163         dump_register(DMA_PER_INJECT_PKT_SRC),
 164         dump_register(DMA_PER_INJECT_PKT_DEST),
 165         dump_register(DMA_PER_INJECT_PKT_ADDR),
 166         dump_register(DMA_PER_INJECT_PKT),
 167         dump_register(DMA_PER_PAT_PTR_INIT),
 168         dump_register(DMA_PER_PAT_PTR),
 169         dump_register(DMA_PER_SLEEP_MASK),
 170         dump_register(DMA_PER_SLEEP_COUNTER),
 171
 172         dump_register(DMA_FIRMWARE_VERSION),
 173         dump_register(DMA_PTRREC_BASE),
 174         dump_register(DMA_PTRREC_INPUT_OFFSET),
 175         dump_register(DMA_ERRREC_BASE),
 176
 177         dump_register(DMA_ERROR_RECORD(0)),
 178         dump_register(DMA_ERROR_RECORD(1)),
 179         dump_register(DMA_ERROR_RECORD(2)),
 180         dump_register(DMA_ERROR_RECORD(3)),
 181         dump_register(DMA_ERROR_RECORD(4)),
 182         dump_register(DMA_ERROR_RECORD(5)),
 183         dump_register(DMA_ERROR_RECORD(6)),
 184         dump_register(DMA_ERROR_RECORD(7)),
 185         dump_register(DMA_ERROR_RECORD(8)),
 186         dump_register(DMA_ERROR_RECORD(9)),
 187         dump_register(DMA_ERROR_RECORD(10)),
 188         dump_register(DMA_ERROR_RECORD(11)),
 189         dump_register(DMA_ERROR_RECORD(12)),
 190         dump_register(DMA_ERROR_RECORD(13)),
 191         dump_register(DMA_ERROR_RECORD(14)),
 192         dump_register(DMA_ERROR_RECORD(15)),
 193         dump_register(DMA_ERROR_RECORD(16)),
 194         dump_register(DMA_ERROR_RECORD(17)),
 195         dump_register(DMA_ERROR_RECORD(18)),
 196         dump_register(DMA_ERROR_RECORD(19)),
 197         dump_register(DMA_ERROR_RECORD(20)),
 198         dump_register(DMA_ERROR_RECORD(21)),
 199         dump_register(DMA_ERROR_RECORD(22)),
 200
 201         dump_register(DMA_IDLE_REQ),
 202         dump_register(DMA_FIRMWARE_CONFIG),
 203
 204         dump_register(PIDF_BASE(0)),
 205         dump_register(PIDF_BASE(1)),
 206         dump_register(PIDF_BASE(2)),
 207         dump_register(PIDF_BASE(3)),
 208         dump_register(PIDF_BASE(4)),
 209         dump_register(PIDF_BASE(5)),
 210         dump_register(PIDF_BASE(6)),
 211         dump_register(PIDF_BASE(7)),
 212         dump_register(PIDF_BASE(8)),
 213         dump_register(PIDF_BASE(9)),
 214         dump_register(PIDF_BASE(10)),
 215         dump_register(PIDF_BASE(11)),
 216         dump_register(PIDF_BASE(12)),
 217         dump_register(PIDF_BASE(13)),
 218         dump_register(PIDF_BASE(14)),
 219         dump_register(PIDF_BASE(15)),
 220         dump_register(PIDF_BASE(16)),
 221         dump_register(PIDF_BASE(17)),
 222         dump_register(PIDF_BASE(18)),
 223         dump_register(PIDF_BASE(19)),
 224         dump_register(PIDF_BASE(20)),
 225         dump_register(PIDF_BASE(21)),
 226         dump_register(PIDF_BASE(22)),
 227         dump_register(PIDF_LEAK_ENABLE),
 228         dump_register(PIDF_LEAK_STATUS),
 229         dump_register(PIDF_LEAK_COUNT_RESET),
 230         dump_register(PIDF_LEAK_COUNTER),
 231 };
 232
 233 void c8sectpfe_debugfs_init(struct c8sectpfei *fei)
 234 {
 235         struct dentry           *root;
 236         struct dentry           *file;
 237
 238         root = debugfs_create_dir("c8sectpfe", NULL);
 239         if (!root)
 240                 goto err;
 241
 242         fei->root = root;
 243
 244         fei->regset =  devm_kzalloc(fei->dev, sizeof(*fei->regset), GFP_KERNEL);
 245         if (!fei->regset)
 246                 goto err;
 247
 248         fei->regset->regs = fei_sys_regs;
 249         fei->regset->nregs = ARRAY_SIZE(fei_sys_regs);
 250         fei->regset->base = fei->io;
 251
 252         file = debugfs_create_regset32("registers", S_IRUGO, root,
 253                                 fei->regset);
 254         if (!file) {
 255                 dev_err(fei->dev,
 256                         "%s not able to create 'registers' debugfs\n"
 257                         , __func__);
 258                 goto err;
 259         }
 260
 261         return;
 262
 263 err:
 264         debugfs_remove_recursive(root);
 265 }
 266
 267 void c8sectpfe_debugfs_exit(struct c8sectpfei *fei)
 268 {
 269         debugfs_remove_recursive(fei->root);
 270         fei->root = NULL;
 271 }