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stage1 -> stage2 again

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This commit is contained in:
TuxSH 2018-05-12 11:00:36 +02:00
parent 50047dffaa
commit 75169790ff
6 changed files with 123 additions and 58 deletions
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57
fusee/fusee-secondary/src/lib/fatfs/diskio.c
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@ -7,12 +7,23 @@
/* storage control modules to the FatFs module with a defined API. */
/*-----------------------------------------------------------------------*/
#include <stdbool.h>
#include <string.h>
#include "diskio.h" /* FatFs lower layer API */
#include "../../sdmmc.h"
#include "../../hwinit.h"
/* Global sd struct. */
extern struct mmc sd_mmc;
struct mmc g_sd_mmc = {0};
static bool g_sd_initialized = false;
static bool g_ahb_redirect_enabled = false;
/*
Uncomment if needed:
struct mmc nand_mmc = {0};
static bool g_nand_initialized = false;
*/
/*-----------------------------------------------------------------------*/
/* Get Drive Status */
@ -35,7 +46,28 @@ DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
return 0;
if (!g_ahb_redirect_enabled) {
mc_enable_ahb_redirect();
g_ahb_redirect_enabled = true;
}
switch (pdrv) {
case 0: {
if (!g_sd_initialized) {
int rc = sdmmc_init(&g_sd_mmc, SWITCH_MICROSD);
if (rc == 0) {
g_sd_initialized = true;
return 0;
} else {
return rc;
}
} else {
return 0;
}
}
default:
return STA_NODISK;
}
}
@ -51,12 +83,12 @@ DRESULT disk_read (
UINT count /* Number of sectors to read */
)
{
for (unsigned int i = 0; i < count; i++) {
if (sdmmc_read(&sd_mmc, buff + 0x200 * i, sector + i, 1) != 0) {
return RES_ERROR;
}
}
return RES_OK;
switch (pdrv) {
case 0:
return sdmmc_read(&g_sd_mmc, buff, sector, count) == 0 ? RES_OK : RES_ERROR;
default:
return RES_PARERR;
}
}
@ -72,7 +104,12 @@ DRESULT disk_write (
UINT count /* Number of sectors to write */
)
{
return RES_ERROR;
switch (pdrv) {
case 0:
return sdmmc_write(&g_sd_mmc, buff, sector, count) == 0 ? RES_OK : RES_ERROR;
default:
return RES_PARERR;
}
}
@ -87,6 +124,6 @@ DRESULT disk_ioctl (
void *buff /* Buffer to send/receive control data */
)
{
return RES_OK;
return 0;
}