mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-27 06:12:15 +00:00
f82954e98b
subrepo: subdir: "emummc" merged: "3791be9f" upstream: origin: "https://github.com/m4xw/emummc" branch: "exo2" commit: "3791be9f" git-subrepo: version: "0.4.1" origin: "???" commit: "???"
91 lines
No EOL
1.8 KiB
C
91 lines
No EOL
1.8 KiB
C
/*
|
|
* Copyright (c) 2019 CTCaer
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "nx_sd.h"
|
|
#include "sdmmc.h"
|
|
#include "sdmmc_driver.h"
|
|
#include "../soc/gpio.h"
|
|
#include "../libs/fatfs/ff.h"
|
|
|
|
extern sdmmc_t sd_sdmmc;
|
|
extern sdmmc_storage_t sd_storage;
|
|
|
|
static u32 sd_mode = SD_UHS_SDR104;
|
|
|
|
u32 nx_sd_mode_get()
|
|
{
|
|
return sd_mode;
|
|
}
|
|
|
|
int nx_sd_init_retry(bool power_cycle)
|
|
{
|
|
u32 bus_width = SDMMC_BUS_WIDTH_4;
|
|
u32 type = SDHCI_TIMING_UHS_SDR104;
|
|
|
|
// Power cycle SD card.
|
|
if (power_cycle)
|
|
{
|
|
sd_mode--;
|
|
sdmmc_storage_end(&sd_storage);
|
|
}
|
|
|
|
// Get init parameters.
|
|
switch (sd_mode)
|
|
{
|
|
case SD_INIT_FAIL: // Reset to max.
|
|
return 0;
|
|
case SD_1BIT_HS25:
|
|
bus_width = SDMMC_BUS_WIDTH_1;
|
|
type = SDHCI_TIMING_SD_HS25;
|
|
break;
|
|
case SD_4BIT_HS25:
|
|
type = SDHCI_TIMING_SD_HS25;
|
|
break;
|
|
case SD_UHS_SDR82:
|
|
type = SDHCI_TIMING_UHS_SDR82;
|
|
break;
|
|
case SD_UHS_SDR104:
|
|
type = SDHCI_TIMING_UHS_SDR104;
|
|
break;
|
|
default:
|
|
sd_mode = SD_UHS_SDR104;
|
|
}
|
|
|
|
return sdmmc_storage_init_sd(&sd_storage, &sd_sdmmc, bus_width, type);
|
|
}
|
|
|
|
bool nx_sd_initialize(bool power_cycle)
|
|
{
|
|
if (power_cycle)
|
|
sdmmc_storage_end(&sd_storage);
|
|
|
|
int res = !nx_sd_init_retry(false);
|
|
|
|
while (true)
|
|
{
|
|
if (!res)
|
|
return true;
|
|
else
|
|
{
|
|
if (sd_mode == SD_INIT_FAIL)
|
|
break;
|
|
|
|
res = !nx_sd_init_retry(true);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
} |