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/*
* linux/drivers/mmc/host/sdhost_debugfs.c - Secure Digital Host Controller Interface driver
*
* Copyright (C) 2014-2014 Jason.Wu(Jishuang.Wu), 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.
*
*/
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <soc/sprd/hardware.h>
#include <soc/sprd/sci.h>
#include <soc/sprd/sci_glb_regs.h>
#include <soc/sprd/adi.h>
#include "sdhost.h"
#include "sdhost_debugfs.h"
#define ELEMENT(v) {v,#v}
#define ELEMENT_NUM 24
struct {
uint32_t bit;
char *capsName;
} capsInfo[3][ELEMENT_NUM] = {
{
ELEMENT(MMC_CAP_4_BIT_DATA),
ELEMENT(MMC_CAP_MMC_HIGHSPEED),
ELEMENT(MMC_CAP_SD_HIGHSPEED),
ELEMENT(MMC_CAP_SDIO_IRQ),
ELEMENT(MMC_CAP_SPI),
ELEMENT(MMC_CAP_NEEDS_POLL),
ELEMENT(MMC_CAP_8_BIT_DATA),
ELEMENT(MMC_CAP_NONREMOVABLE),
ELEMENT(MMC_CAP_WAIT_WHILE_BUSY),
ELEMENT(MMC_CAP_ERASE),
ELEMENT(MMC_CAP_1_8V_DDR),
ELEMENT(MMC_CAP_1_2V_DDR),
ELEMENT(MMC_CAP_POWER_OFF_CARD),
ELEMENT(MMC_CAP_BUS_WIDTH_TEST),
ELEMENT(MMC_CAP_UHS_SDR12),
ELEMENT(MMC_CAP_UHS_SDR25),
ELEMENT(MMC_CAP_UHS_SDR50),
ELEMENT(MMC_CAP_UHS_SDR104),
ELEMENT(MMC_CAP_UHS_DDR50),
ELEMENT(MMC_CAP_DRIVER_TYPE_A),
ELEMENT(MMC_CAP_DRIVER_TYPE_C), ELEMENT(MMC_CAP_DRIVER_TYPE_D), ELEMENT(MMC_CAP_CMD23), ELEMENT(MMC_CAP_HW_RESET)
}, {
ELEMENT(MMC_CAP2_BOOTPART_NOACC),
ELEMENT(MMC_CAP2_CACHE_CTRL),
ELEMENT(MMC_CAP2_POWEROFF_NOTIFY),
ELEMENT(MMC_CAP2_NO_MULTI_READ),
ELEMENT(MMC_CAP2_NO_SLEEP_CMD),
ELEMENT(MMC_CAP2_HS200_1_8V_SDR),
ELEMENT(MMC_CAP2_HS200_1_2V_SDR),
ELEMENT(MMC_CAP2_HS200),
ELEMENT(MMC_CAP2_BROKEN_VOLTAGE),
ELEMENT(MMC_CAP2_DETECT_ON_ERR),
ELEMENT(MMC_CAP2_HC_ERASE_SZ),
ELEMENT(MMC_CAP2_CD_ACTIVE_HIGH),
ELEMENT(MMC_CAP2_RO_ACTIVE_HIGH),
ELEMENT(MMC_CAP2_PACKED_RD), ELEMENT(MMC_CAP2_PACKED_WR), ELEMENT(MMC_CAP2_PACKED_CMD), ELEMENT(MMC_CAP2_NO_PRESCAN_POWERUP)
}, {
ELEMENT(MMC_PM_KEEP_POWER), ELEMENT(MMC_PM_WAKE_SDIO_IRQ), ELEMENT(MMC_PM_IGNORE_PM_NOTIFY)
}
};
static int sdhost_param_show(struct seq_file *s, void *data)
{
struct sdhost_host *host = s->private;
uint32_t i;
seq_printf(s, "\n"
"ioaddr\t= 0x%p\n"
"irq\t= %d\n"
"deviceName\t= %s\n"
"detect_gpio\t= %d\n"
"SD_Pwr_Name\t= %s\n"
"1.8v signal_Name\t= %s\n"
"baseClk\t= %d\n"
"writeDelay\t= %d\n"
"readPosDelay\t= %d\n"
"readNegDelay\t= %d\n",
host->ioaddr, host->irq, host->deviceName, host->detect_gpio, host->SD_Pwr_Name,
host->_1_8V_signal_Name, host->base_clk, host->writeDelay, host->readPosDelay, host->readNegDelay);
seq_printf(s, "OCR 0x%x\n", host->ocr_avail);
for (i = 0; i < ELEMENT_NUM; i++) {
if ((capsInfo[0][i].bit == (host->caps & capsInfo[0][i].bit)) && capsInfo[0][i].bit) {
seq_printf(s, "caps:%s\n", capsInfo[0][i].capsName);
}
}
for (i = 0; i < ELEMENT_NUM; i++) {
if ((capsInfo[1][i].bit == (host->caps2 & capsInfo[1][i].bit)) && capsInfo[1][i].bit) {
seq_printf(s, "caps2:%s\n", capsInfo[1][i].capsName);
}
}
for (i = 0; i < ELEMENT_NUM; i++) {
if ((capsInfo[2][i].bit == (host->pm_caps & capsInfo[2][i].bit)) && capsInfo[2][i].bit) {
seq_printf(s, "pm_caps:%s\n", capsInfo[2][i].capsName);
}
}
return 0;
}
static int sdhost_param_open(struct inode *inode, struct file *file)
{
return single_open(file, sdhost_param_show, inode->i_private);
}
static const struct file_operations sdhost_param_fops = {
.open = sdhost_param_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#define SDHOST_ATTR(PARAM_NAME) \
static int sdhost_##PARAM_NAME##_get(void *data, u64 * val)\
{\
struct sdhost_host* host = data;\
*val = (u64)host->PARAM_NAME;\
return 0;\
}\
static int sdhost_##PARAM_NAME##_set(void *data, u64 val)\
{\
struct sdhost_host* host = data;\
if(0x7F >= (uint32_t)val){\
host->PARAM_NAME = (uint32_t)val;\
_sdhost_set_delay(host->ioaddr,host->writeDelay,host->readPosDelay,host->readNegDelay);\
}\
return 0;\
}\
DEFINE_SIMPLE_ATTRIBUTE(sdhost_##PARAM_NAME##_fops, sdhost_##PARAM_NAME##_get, sdhost_##PARAM_NAME##_set, "%llu\n");
SDHOST_ATTR(writeDelay);
SDHOST_ATTR(readPosDelay);
SDHOST_ATTR(readNegDelay);
void sdhost_add_debugfs(struct sdhost_host *host)
{
struct dentry *root;
root = debugfs_create_dir(host->deviceName, NULL);
if (IS_ERR(root)) {
/* Don't complain -- debugfs just isn't enabled */
return;
}
if (!root) {
return;
}
host->debugfs_root = root;
if (!debugfs_create_file("basicResource", S_IRUSR, root, (void *)host, &sdhost_param_fops)) {
goto err;
}
if (!debugfs_create_file("writeDelay", S_IRUSR | S_IWUSR, root, (void *)host, &sdhost_writeDelay_fops)) {
goto err;
}
if (!debugfs_create_file("readPosDelay", S_IRUSR | S_IWUSR, root, (void *)host, &sdhost_readPosDelay_fops)) {
goto err;
}
if (!debugfs_create_file("readNegDelay", S_IRUSR | S_IWUSR, root, (void *)host, &sdhost_readNegDelay_fops)) {
goto err;
}
return;
err:
debugfs_remove_recursive(root);
host->debugfs_root = 0;
return;
}
void dumpSDIOReg(struct sdhost_host *host)
{
unsigned int i;
if (!host->mmc->card) {
return;
}
printk(KERN_ERR "sdhost" ": =========== REGISTER DUMP (%s)===========\n", host->deviceName);
for (i = 0; i < 0x09; i++) {
printk(KERN_ERR "sdhost" ": 0x%08x | 0x%08x | 0x%08x | 0x%08x\n\r",
_sdhost_readl(host->ioaddr, 0 + (i << 4)), _sdhost_readl(host->ioaddr, 4 + (i << 4)),
_sdhost_readl(host->ioaddr, 8 + (i << 4)), _sdhost_readl(host->ioaddr, 12 + (i << 4))
);
}
printk(KERN_ERR "sdhost" ": ===========================================\n");
mdelay(100);
}
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