mirror of
https://github.com/CTCaer/hekate
synced 2024-07-06 16:33:29 +00:00
ce97b97c8d
hekate main always runs in compatibility mode (SDR82). This ensures speed on boot process. Nyx will first try SDR104. If the sd card is a sandisk U1 and fails, it will try the compatibility mode. After that it fallbacks to lower bus speeds. Both support 1bit mode for broken sd card readers. Having the new error checking in the sdmmc driver, allows for all that to work. It can now fail instead of continuing, like how HOS reacts.
180 lines
3.3 KiB
C
180 lines
3.3 KiB
C
/*
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* Copyright (c) 2018 naehrwert
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* Copyright (c) 2018-2019 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "nx_sd.h"
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#include "sdmmc.h"
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#include "sdmmc_driver.h"
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#include "../gfx/gfx.h"
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#include "../libs/fatfs/ff.h"
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#include "../mem/heap.h"
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static bool sd_mounted = false;
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static u32 sd_mode = SD_UHS_SDR82;
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u32 sd_mode_get()
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{
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return sd_mode;
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}
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int sd_init_retry(bool power_cycle)
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{
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u32 bus_width = SDMMC_BUS_WIDTH_4;
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u32 type = SDHCI_TIMING_UHS_SDR82;
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// Power cycle SD card.
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if (power_cycle)
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{
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sd_mode--;
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sdmmc_storage_end(&sd_storage);
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}
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// Get init parameters.
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switch (sd_mode)
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{
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case SD_INIT_FAIL: // Reset to max.
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return 0;
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case SD_1BIT_HS25:
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bus_width = SDMMC_BUS_WIDTH_1;
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type = SDHCI_TIMING_SD_HS25;
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break;
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case SD_4BIT_HS25:
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type = SDHCI_TIMING_SD_HS25;
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break;
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case SD_UHS_SDR82:
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type = SDHCI_TIMING_UHS_SDR82;
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break;
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default:
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sd_mode = SD_UHS_SDR82;
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}
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return sdmmc_storage_init_sd(&sd_storage, &sd_sdmmc, bus_width, type);
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}
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bool sd_initialize(bool power_cycle)
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{
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if (power_cycle)
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sdmmc_storage_end(&sd_storage);
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int res = !sd_init_retry(false);
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while (true)
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{
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if (!res)
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return true;
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else if (!sdmmc_get_sd_inserted()) // SD Card is not inserted.
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{
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sd_mode = SD_UHS_SDR82;
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break;
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}
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else if (sd_mode == SD_INIT_FAIL)
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break;
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else
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res = !sd_init_retry(true);
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}
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sdmmc_storage_end(&sd_storage);
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return false;
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}
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bool sd_mount()
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{
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if (sd_mounted)
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return true;
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int res = !sd_initialize(false);
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if (res)
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{
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gfx_con.mute = false;
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EPRINTF("Failed to init SD card.");
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if (!sdmmc_get_sd_inserted())
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EPRINTF("Make sure that it is inserted.");
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else
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EPRINTF("SD Card Reader is not properly seated!");
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}
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else
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{
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res = f_mount(&sd_fs, "", 1);
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if (res == FR_OK)
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{
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sd_mounted = true;
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return true;
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}
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else
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{
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gfx_con.mute = false;
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EPRINTFARGS("Failed to mount SD card (FatFS Error %d).\nMake sure that a FAT partition exists..", res);
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}
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}
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return false;
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}
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void sd_unmount()
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{
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sd_mode = SD_UHS_SDR82;
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if (sd_mounted)
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{
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f_mount(NULL, "", 1);
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sdmmc_storage_end(&sd_storage);
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sd_mounted = false;
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}
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}
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void *sd_file_read(const char *path, u32 *fsize)
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{
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FIL fp;
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if (f_open(&fp, path, FA_READ) != FR_OK)
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return NULL;
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u32 size = f_size(&fp);
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if (fsize)
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*fsize = size;
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void *buf = malloc(size);
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if (f_read(&fp, buf, size, NULL) != FR_OK)
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{
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free(buf);
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f_close(&fp);
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return NULL;
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}
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f_close(&fp);
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return buf;
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}
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int sd_save_to_file(void *buf, u32 size, const char *filename)
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{
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FIL fp;
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u32 res = 0;
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res = f_open(&fp, filename, FA_CREATE_ALWAYS | FA_WRITE);
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if (res)
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{
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EPRINTFARGS("Error (%d) creating file\n%s.\n", res, filename);
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return res;
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}
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f_write(&fp, buf, size, NULL);
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f_close(&fp);
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return 0;
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}
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