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[stage1] refactor diskio.c
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parent
00f08321c7
commit
9dce3b05ba
1 changed files with 44 additions and 21 deletions
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@ -13,16 +13,55 @@
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#include "../../sdmmc.h"
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#include "../../hwinit.h"
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static bool g_ahb_redirect_enabled = false;
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/* Global sd struct. */
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struct mmc g_sd_mmc = {0};
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static struct mmc g_sd_mmc = {0};
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static bool g_sd_initialized = false;
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static bool g_ahb_redirect_enabled = false;
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int initialize_sd_mmc(void) {
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if (!g_ahb_redirect_enabled) {
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mc_enable_ahb_redirect();
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g_ahb_redirect_enabled = true;
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}
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if (!g_sd_initialized) {
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int rc = sdmmc_init(&g_sd_mmc, SWITCH_MICROSD);
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if (rc == 0) {
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g_sd_initialized = true;
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return 0;
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} else {
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return rc;
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}
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} else {
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return 0;
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}
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}
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/*
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Uncomment if needed:
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struct mmc nand_mmc = {0};
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static struct mmc nand_mmc = {0};
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static bool g_nand_initialized = false;
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int initialize_nand_mmc(void) {
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if (!g_ahb_redirect_enabled) {
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mc_enable_ahb_redirect();
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g_ahb_redirect_enabled = true;
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}
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if (!g_nand_initialized) {
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int rc = sdmmc_init(&g_sd_mmc, SWITCH_EMMC);
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if (rc == 0) {
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g_nand_initialized = true;
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return 0;
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} else {
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return rc;
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}
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} else {
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return 0;
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}
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}
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*/
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/*-----------------------------------------------------------------------*/
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@ -46,25 +85,9 @@ DSTATUS disk_initialize (
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BYTE pdrv /* Physical drive nmuber to identify the drive */
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)
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{
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if (!g_ahb_redirect_enabled) {
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mc_enable_ahb_redirect();
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g_ahb_redirect_enabled = true;
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}
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switch (pdrv) {
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case 0: {
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if (!g_sd_initialized) {
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int rc = sdmmc_init(&g_sd_mmc, SWITCH_MICROSD);
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if (rc == 0) {
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g_sd_initialized = true;
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return 0;
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} else {
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return rc;
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}
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} else {
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return 0;
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}
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}
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case 0:
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return initialize_sd_mmc() == 0 ? 0 : STA_NOINIT;
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default:
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return STA_NODISK;
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}
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