linux/drivers/staging/mt7621-mmc/dbg.c
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   1/* Copyright Statement:
   2 *
   3 * This software/firmware and related documentation ("MediaTek Software") are
   4 * protected under relevant copyright laws. The information contained herein
   5 * is confidential and proprietary to MediaTek Inc. and/or its licensors.
   6 * Without the prior written permission of MediaTek inc. and/or its licensors,
   7 * any reproduction, modification, use or disclosure of MediaTek Software,
   8 * and information contained herein, in whole or in part, shall be strictly prohibited.
   9 *
  10 * MediaTek Inc. (C) 2010. All rights reserved.
  11 *
  12 * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
  13 * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
  14 * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
  15 * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
  16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
  17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
  18 * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
  19 * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
  20 * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
  21 * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
  22 * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
  23 * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
  24 * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
  25 * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
  26 * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
  27 * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
  28 * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
  29 * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
  30 *
  31 * The following software/firmware and/or related documentation ("MediaTek Software")
  32 * have been modified by MediaTek Inc. All revisions are subject to any receiver's
  33 * applicable license agreements with MediaTek Inc.
  34 */
  35
  36#include <linux/version.h>
  37#include <linux/kernel.h>
  38#include <linux/sched.h>
  39#include <linux/kthread.h>
  40#include <linux/delay.h>
  41#include <linux/module.h>
  42#include <linux/init.h>
  43#include <linux/proc_fs.h>
  44#include <linux/string.h>
  45#include <linux/uaccess.h>
  46// #include <mach/mt6575_gpt.h> /* --- by chhung */
  47#include "dbg.h"
  48#include "mt6575_sd.h"
  49#include <linux/seq_file.h>
  50
  51static char cmd_buf[256];
  52
  53/* for debug zone */
  54unsigned int sd_debug_zone[4] = {
  55        0,
  56        0,
  57        0,
  58        0
  59};
  60
  61#if defined(MT6575_SD_DEBUG)
  62/* for driver profile */
  63#define TICKS_ONE_MS  (13000)
  64u32 gpt_enable;
  65u32 sdio_pro_enable;   /* make sure gpt is enabled */
  66u32 sdio_pro_time;     /* no more than 30s */
  67struct sdio_profile sdio_perfomance = {0};
  68
  69#if 0 /* --- chhung */
  70void msdc_init_gpt(void)
  71{
  72        GPT_CONFIG config;
  73
  74        config.num  = GPT6;
  75        config.mode = GPT_FREE_RUN;
  76        config.clkSrc = GPT_CLK_SRC_SYS;
  77        config.clkDiv = GPT_CLK_DIV_1;   /* 13MHz GPT6 */
  78
  79        if (GPT_Config(config) == FALSE)
  80                return;
  81
  82        GPT_Start(GPT6);
  83}
  84#endif /* end of --- */
  85
  86u32 msdc_time_calc(u32 old_L32, u32 old_H32, u32 new_L32, u32 new_H32)
  87{
  88        u32 ret = 0;
  89
  90        if (new_H32 == old_H32) {
  91                ret = new_L32 - old_L32;
  92        } else if (new_H32 == (old_H32 + 1)) {
  93                if (new_L32 > old_L32)
  94                        pr_debug("msdc old_L<0x%x> new_L<0x%x>\n", old_L32, new_L32);
  95                ret = (0xffffffff - old_L32);
  96                ret += new_L32;
  97        } else {
  98                pr_debug("msdc old_H<0x%x> new_H<0x%x>\n", old_H32, new_H32);
  99        }
 100
 101        return ret;
 102}
 103
 104void msdc_sdio_profile(struct sdio_profile *result)
 105{
 106        struct cmd_profile *cmd;
 107        u32 i;
 108
 109        pr_debug("sdio === performance dump ===\n");
 110        pr_debug("sdio === total execute tick<%d> time<%dms> Tx<%dB> Rx<%dB>\n",
 111                 result->total_tc, result->total_tc / TICKS_ONE_MS,
 112                 result->total_tx_bytes, result->total_rx_bytes);
 113
 114        /* CMD52 Dump */
 115        cmd = &result->cmd52_rx;
 116        pr_debug("sdio === CMD52 Rx <%d>times tick<%d> Max<%d> Min<%d> Aver<%d>\n", cmd->count, cmd->tot_tc,
 117                 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count);
 118        cmd = &result->cmd52_tx;
 119        pr_debug("sdio === CMD52 Tx <%d>times tick<%d> Max<%d> Min<%d> Aver<%d>\n", cmd->count, cmd->tot_tc,
 120                 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count);
 121
 122        /* CMD53 Rx bytes + block mode */
 123        for (i = 0; i < 512; i++) {
 124                cmd = &result->cmd53_rx_byte[i];
 125                if (cmd->count) {
 126                        pr_debug("sdio<%6d><%3dB>_Rx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
 127                                 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count,
 128                                 cmd->tot_bytes, (cmd->tot_bytes / 10) * 13 / (cmd->tot_tc / 10));
 129                }
 130        }
 131        for (i = 0; i < 100; i++) {
 132                cmd = &result->cmd53_rx_blk[i];
 133                if (cmd->count) {
 134                        pr_debug("sdio<%6d><%3d>B_Rx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
 135                                 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count,
 136                                 cmd->tot_bytes, (cmd->tot_bytes / 10) * 13 / (cmd->tot_tc / 10));
 137                }
 138        }
 139
 140        /* CMD53 Tx bytes + block mode */
 141        for (i = 0; i < 512; i++) {
 142                cmd = &result->cmd53_tx_byte[i];
 143                if (cmd->count) {
 144                        pr_debug("sdio<%6d><%3dB>_Tx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
 145                                 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count,
 146                                 cmd->tot_bytes, (cmd->tot_bytes / 10) * 13 / (cmd->tot_tc / 10));
 147                }
 148        }
 149        for (i = 0; i < 100; i++) {
 150                cmd = &result->cmd53_tx_blk[i];
 151                if (cmd->count) {
 152                        pr_debug("sdio<%6d><%3d>B_Tx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
 153                                 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count,
 154                                 cmd->tot_bytes, (cmd->tot_bytes / 10) * 13 / (cmd->tot_tc / 10));
 155                }
 156        }
 157
 158        pr_debug("sdio === performance dump done ===\n");
 159}
 160
 161//========= sdio command table ===========
 162void msdc_performance(u32 opcode, u32 sizes, u32 bRx, u32 ticks)
 163{
 164        struct sdio_profile *result = &sdio_perfomance;
 165        struct cmd_profile *cmd;
 166        u32 block;
 167
 168        if (sdio_pro_enable == 0)
 169                return;
 170
 171        if (opcode == 52) {
 172                cmd = bRx ?  &result->cmd52_rx : &result->cmd52_tx;
 173        } else if (opcode == 53) {
 174                if (sizes < 512) {
 175                        cmd = bRx ?  &result->cmd53_rx_byte[sizes] : &result->cmd53_tx_byte[sizes];
 176                } else {
 177                        block = sizes / 512;
 178                        if (block >= 99) {
 179                                pr_err("cmd53 error blocks\n");
 180                                while (1)
 181                                        ;
 182                        }
 183                        cmd = bRx ?  &result->cmd53_rx_blk[block] : &result->cmd53_tx_blk[block];
 184                }
 185        } else {
 186                return;
 187        }
 188
 189        /* update the members */
 190        if (ticks > cmd->max_tc)
 191                cmd->max_tc = ticks;
 192        if (cmd->min_tc == 0 || ticks < cmd->min_tc)
 193                cmd->min_tc = ticks;
 194        cmd->tot_tc += ticks;
 195        cmd->tot_bytes += sizes;
 196        cmd->count++;
 197
 198        if (bRx)
 199                result->total_rx_bytes += sizes;
 200        else
 201                result->total_tx_bytes += sizes;
 202        result->total_tc += ticks;
 203
 204        /* dump when total_tc > 30s */
 205        if (result->total_tc >= sdio_pro_time * TICKS_ONE_MS * 1000) {
 206                msdc_sdio_profile(result);
 207                memset(result, 0, sizeof(struct sdio_profile));
 208        }
 209}
 210
 211//========== driver proc interface ===========
 212static int msdc_debug_proc_read(struct seq_file *s, void *p)
 213{
 214        seq_puts(s, "\n=========================================\n");
 215        seq_puts(s, "Index<0> + Id + Zone\n");
 216        seq_puts(s, "-> PWR<9> WRN<8> | FIO<7> OPS<6> FUN<5> CFG<4> | INT<3> RSP<2> CMD<1> DMA<0>\n");
 217        seq_puts(s, "-> echo 0 3 0x3ff >msdc_bebug -> host[3] debug zone set to 0x3ff\n");
 218        seq_printf(s, "-> MSDC[0] Zone: 0x%.8x\n", sd_debug_zone[0]);
 219        seq_printf(s, "-> MSDC[1] Zone: 0x%.8x\n", sd_debug_zone[1]);
 220        seq_printf(s, "-> MSDC[2] Zone: 0x%.8x\n", sd_debug_zone[2]);
 221        seq_printf(s, "-> MSDC[3] Zone: 0x%.8x\n", sd_debug_zone[3]);
 222
 223        seq_puts(s, "Index<3> + SDIO_PROFILE + TIME\n");
 224        seq_puts(s, "-> echo 3 1 0x1E >msdc_bebug -> enable sdio_profile, 30s\n");
 225        seq_printf(s, "-> SDIO_PROFILE<%d> TIME<%ds>\n", sdio_pro_enable, sdio_pro_time);
 226        seq_puts(s, "=========================================\n\n");
 227
 228        return 0;
 229}
 230
 231static ssize_t msdc_debug_proc_write(struct file *file,
 232                                     const char __user *buf,
 233                                     size_t count, loff_t *data)
 234{
 235        int ret;
 236
 237        int cmd, p1, p2;
 238        int id, zone;
 239        int mode, size;
 240
 241        if (count == 0)
 242                return -1;
 243        if (count > 255)
 244                count = 255;
 245
 246        if (copy_from_user(cmd_buf, buf, count))
 247                return -EFAULT;
 248
 249        cmd_buf[count] = '\0';
 250        pr_debug("msdc Write %s\n", cmd_buf);
 251
 252        sscanf(cmd_buf, "%x %x %x", &cmd, &p1, &p2);
 253
 254        if (cmd == SD_TOOL_ZONE) {
 255                id = p1;
 256                zone = p2;
 257                zone &= 0x3ff;
 258                pr_debug("msdc host_id<%d> zone<0x%.8x>\n", id, zone);
 259                if (id >= 0 && id <= 3) {
 260                        sd_debug_zone[id] = zone;
 261                } else if (id == 4) {
 262                        sd_debug_zone[0] = sd_debug_zone[1] = zone;
 263                        sd_debug_zone[2] = sd_debug_zone[3] = zone;
 264                } else {
 265                        pr_err("msdc host_id error when set debug zone\n");
 266                }
 267        } else if (cmd == SD_TOOL_SDIO_PROFILE) {
 268                if (p1 == 1) { /* enable profile */
 269                        if (gpt_enable == 0) {
 270                                // msdc_init_gpt(); /* --- by chhung */
 271                                gpt_enable = 1;
 272                        }
 273                        sdio_pro_enable = 1;
 274                        if (p2 == 0)
 275                                p2 = 1;
 276                        if (p2 >= 30)
 277                                p2 = 30;
 278                        sdio_pro_time = p2;
 279                } else if (p1 == 0) {
 280                        /* todo */
 281                        sdio_pro_enable = 0;
 282                }
 283        }
 284
 285        return count;
 286}
 287
 288static int msdc_debug_show(struct inode *inode, struct file *file)
 289{
 290        return single_open(file, msdc_debug_proc_read, NULL);
 291}
 292
 293static const struct file_operations msdc_debug_fops = {
 294        .owner          = THIS_MODULE,
 295        .open           = msdc_debug_show,
 296        .read           = seq_read,
 297        .write          = msdc_debug_proc_write,
 298        .llseek         = seq_lseek,
 299        .release        = single_release,
 300};
 301
 302void msdc_debug_proc_init(void)
 303{
 304        proc_create("msdc_debug", 0660, NULL, &msdc_debug_fops);
 305}
 306EXPORT_SYMBOL_GPL(msdc_debug_proc_init);
 307#endif
 308