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isfshax/stage2/sdcard.c
rw-r-r-0644 ba607fb319 first commit
2021-05-26 01:53:11 +02:00

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/*
* minute - a port of the "mini" IOS replacement for the Wii U.
*
* Copyright (C) 2016 SALT
* Copyright (C) 2016 Daz Jones <daz@dazzozo.com>
*
* Copyright (C) 2008, 2009 Sven Peter <svenpeter@gmail.com>
*
* This code is licensed to you under the terms of the GNU GPL, version 2;
* see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#include "bsdtypes.h"
#include "utils.h"
#include "memory.h"
#include "latte.h"
#include "sdhc.h"
#include "sdcard.h"
#include <string.h>
#include "debug.h"
#include "gpio.h"
#ifdef CAN_HAZ_IRQ
#include "irq.h"
#endif
//#define SDCARD_DEBUG
#ifdef SDCARD_DEBUG
static int sdcarddebug = 2;
#define DPRINTF(n,s) do { if ((n) <= sdcarddebug) DEBUG(s); } while (0)
#else
#define DPRINTF(n,s) do {} while(0)
#endif
static struct sdhc_host sdcard_host;
struct sdcard_ctx {
sdmmc_chipset_handle_t handle;
int inserted;
int sdhc_blockmode;
int selected;
int new_card; // set to 1 everytime a new card is inserted
u32 num_sectors;
u16 rca;
};
static struct sdcard_ctx card;
void sdcard_attach(sdmmc_chipset_handle_t handle)
{
memset(&card, 0, sizeof(card));
card.handle = handle;
DPRINTF(0, ("sdcard: attached new SD/MMC card\n"));
sdhc_host_reset(card.handle);
if (sdhc_card_detect(card.handle)) {
DPRINTF(1, ("card is inserted. starting init sequence.\n"));
sdcard_needs_discover();
}
}
void sdcard_abort(void) {
struct sdmmc_command cmd;
DEBUG("sdcard: abortion kthx\n");
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_STOP_TRANSMISSION;
cmd.c_arg = 0;
cmd.c_flags = SCF_RSP_R1B;
sdhc_exec_command(card.handle, &cmd);
}
void sdcard_needs_discover(void)
{
struct sdmmc_command cmd;
u32 ocr = card.handle->ocr;
DPRINTF(0, ("sdcard: card needs discovery.\n"));
sdhc_host_reset(card.handle);
card.new_card = 1;
if (!sdhc_card_detect(card.handle)) {
DPRINTF(1, ("sdcard: card (no longer?) inserted.\n"));
card.inserted = 0;
return;
}
DPRINTF(1, ("sdcard: enabling power\n"));
if (sdhc_bus_power(card.handle, ocr) != 0) {
DEBUG("sdcard: powerup failed for card\n");
goto out;
}
DPRINTF(1, ("sdcard: enabling clock\n"));
if (sdhc_bus_clock(card.handle, SDMMC_SDCLK_25MHZ, SDMMC_TIMING_LEGACY) != 0) {
DEBUG("sdcard: could not enable clock for card\n");
goto out_power;
}
sdhc_bus_width(card.handle, 1);
DPRINTF(1, ("sdcard: sending GO_IDLE_STATE\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_GO_IDLE_STATE;
cmd.c_flags = SCF_RSP_R0;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: GO_IDLE_STATE failed with %d\n", cmd.c_error);
goto out_clock;
}
DPRINTF(2, ("sdcard: GO_IDLE_STATE response: %x\n", MMC_R1(cmd.c_resp)));
DPRINTF(1, ("sdcard: sending SEND_IF_COND\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = SD_SEND_IF_COND;
cmd.c_arg = 0x1aa;
cmd.c_flags = SCF_RSP_R7;
cmd.c_timeout = 100;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error || (cmd.c_resp[0] & 0xff) != 0xaa)
ocr &= ~SD_OCR_SDHC_CAP;
else
ocr |= SD_OCR_SDHC_CAP;
DPRINTF(2, ("sdcard: SEND_IF_COND ocr: %x\n", ocr));
int tries;
for (tries = 100; tries > 0; tries--) {
udelay(100000);
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_APP_CMD;
cmd.c_arg = 0;
cmd.c_flags = SCF_RSP_R1;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: MMC_APP_CMD failed with %d\n", cmd.c_error);
goto out_clock;
}
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = SD_APP_OP_COND;
cmd.c_arg = ocr;
cmd.c_flags = SCF_RSP_R3;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: SD_APP_OP_COND failed with %d\n", cmd.c_error);
goto out_clock;
}
DPRINTF(3, ("sdcard: response for SEND_IF_COND: %08x\n",
MMC_R1(cmd.c_resp)));
if (ISSET(MMC_R1(cmd.c_resp), MMC_OCR_MEM_READY))
break;
}
if (!ISSET(cmd.c_resp[0], MMC_OCR_MEM_READY)) {
DEBUG("sdcard: card failed to powerup.\n");
goto out_power;
}
if (ISSET(MMC_R1(cmd.c_resp), SD_OCR_SDHC_CAP))
card.sdhc_blockmode = 1;
else
card.sdhc_blockmode = 0;
DPRINTF(2, ("sdcard: SDHC: %d\n", card.sdhc_blockmode));
u8 *resp;
u32 *resp32;
DPRINTF(2, ("sdcard: MMC_ALL_SEND_CID\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_ALL_SEND_CID;
cmd.c_arg = 0;
cmd.c_flags = SCF_RSP_R2;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: MMC_ALL_SEND_CID failed with %d\n", cmd.c_error);
goto out_clock;
}
resp = (u8 *)cmd.c_resp;
resp32 = (u32 *)cmd.c_resp;
DEBUG("CID: %08lX%08lX%08lX%08lX\n", resp32[0], resp32[1], resp32[2], resp32[3]);
DEBUG("CID: mid=%02x name='%c%c%c%c%c%c%c' prv=%d.%d psn=%02x%02x%02x%02x mdt=%d/%d\n", resp[14],
resp[13],resp[12],resp[11],resp[10],resp[9],resp[8],resp[7], resp[6], resp[5] >> 4, resp[5] & 0xf,
resp[4], resp[3], resp[2], resp[0] & 0xf, 2000 + (resp[0] >> 4));
DPRINTF(2, ("sdcard: SD_SEND_RELATIVE_ADDRESS\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = SD_SEND_RELATIVE_ADDR;
cmd.c_arg = 0;
cmd.c_flags = SCF_RSP_R6;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: SD_SEND_RCA failed with %d\n", cmd.c_error);
goto out_clock;
}
card.rca = MMC_R1(cmd.c_resp)>>16;
DPRINTF(2, ("sdcard: rca: %08x\n", card.rca));
card.selected = 0;
card.inserted = 1;
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_SEND_CSD;
cmd.c_arg = ((u32)card.rca)<<16;
cmd.c_flags = SCF_RSP_R2;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: MMC_SEND_CSD failed with %d\n", cmd.c_error);
goto out_power;
}
resp = (u8 *)cmd.c_resp;
resp32 = (u32 *)cmd.c_resp;
DEBUG("CSD: %08lX%08lX%08lX%08lX\n", resp32[0], resp32[1], resp32[2], resp32[3]);
if (resp[13] == 0xe) { // sdhc
unsigned int c_size = resp[7] << 16 | resp[6] << 8 | resp[5];
DEBUG("sdcard: sdhc mode, c_size=%u, card size = %uk\n", c_size, (c_size + 1)* 512);
card.num_sectors = (c_size + 1) * 1024; // number of 512-byte sectors
}
else {
unsigned int taac, nsac, read_bl_len, c_size, c_size_mult;
taac = resp[13];
nsac = resp[12];
read_bl_len = resp[9] & 0xF;
c_size = (resp[8] & 3) << 10;
c_size |= (resp[7] << 2);
c_size |= (resp[6] >> 6);
c_size_mult = (resp[5] & 3) << 1;
c_size_mult |= resp[4] >> 7;
DEBUG("taac=%u nsac=%u read_bl_len=%u c_size=%u c_size_mult=%u card size=%u bytes\n",
taac, nsac, read_bl_len, c_size, c_size_mult, (c_size + 1) * (4 << c_size_mult) * (1 << read_bl_len));
card.num_sectors = (c_size + 1) * (4 << c_size_mult) * (1 << read_bl_len) / 512;
}
sdcard_select();
DPRINTF(2, ("mlc: MMC_SEND_STATUS\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_SEND_STATUS;
cmd.c_arg = ((u32)card.rca)<<16;
cmd.c_flags = SCF_RSP_R1;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("mlc: MMC_SEND_STATUS failed with %d\n", cmd.c_error);
card.inserted = card.selected = 0;
goto out_clock;
}
DPRINTF(2, ("sdcard: MMC_SET_BLOCKLEN\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_SET_BLOCKLEN;
cmd.c_arg = SDMMC_DEFAULT_BLOCKLEN;
cmd.c_flags = SCF_RSP_R1;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: MMC_SET_BLOCKLEN failed with %d\n", cmd.c_error);
card.inserted = card.selected = 0;
goto out_clock;
}
DPRINTF(2, ("sdcard: MMC_APP_CMD\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_APP_CMD;
cmd.c_arg = ((u32)card.rca)<<16;
cmd.c_flags = SCF_RSP_R1;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: MMC_APP_CMD failed with %d\n", cmd.c_error);
card.inserted = card.selected = 0;
goto out_clock;
}
DPRINTF(2, ("sdcard: SD_APP_SET_BUS_WIDTH\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = SD_APP_SET_BUS_WIDTH;
cmd.c_arg = SD_ARG_BUS_WIDTH_4;
cmd.c_flags = SCF_RSP_R1;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: SD_APP_SET_BUS_WIDTH failed with %d\n", cmd.c_error);
card.inserted = card.selected = 0;
goto out_clock;
}
sdhc_bus_width(card.handle, 4);
DPRINTF(1, ("sdcard: enabling clock\n"));
if (sdhc_bus_clock(card.handle, SDMMC_SDCLK_25MHZ, SDMMC_TIMING_LEGACY) != 0) {
DEBUG("sdcard: could not enable clock for card\n");
goto out_power;
}
return;
out_clock:
sdhc_bus_width(card.handle, 1);
sdhc_bus_clock(card.handle, SDMMC_SDCLK_OFF, SDMMC_TIMING_LEGACY);
out_power:
sdhc_bus_power(card.handle, 0);
out:
return;
}
int sdcard_select(void)
{
struct sdmmc_command cmd;
DPRINTF(2, ("sdcard: MMC_SELECT_CARD\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_SELECT_CARD;
cmd.c_arg = ((u32)card.rca)<<16;
cmd.c_flags = SCF_RSP_R1B;
sdhc_exec_command(card.handle, &cmd);
DEBUG("%s: resp=%lx\n", __FUNCTION__, MMC_R1(cmd.c_resp));
// sdhc_dump_regs(card.handle);
// DEBUG("present state = %x\n", HREAD4(hp, SDHC_PRESENT_STATE));
if (cmd.c_error) {
DEBUG("sdcard: MMC_SELECT card failed with %d.\n", cmd.c_error);
return -1;
}
card.selected = 1;
return 0;
}
int sdcard_check_card(void)
{
if (card.inserted == 0)
return SDMMC_NO_CARD;
if (card.new_card == 1)
return SDMMC_NEW_CARD;
return SDMMC_INSERTED;
}
int sdcard_ack_card(void)
{
if (card.new_card == 1) {
card.new_card = 0;
return 0;
}
return -1;
}
int sdcard_start_read(u32 blk_start, u32 blk_count, void *data, struct sdmmc_command* cmdbuf)
{
// DEBUG("%s(%u, %u, %p)\n", __FUNCTION__, blk_start, blk_count, data);
if (card.inserted == 0) {
DEBUG("sdcard: READ: no card inserted.\n");
return -1;
}
if (card.selected == 0) {
if (sdcard_select() < 0) {
DEBUG("sdcard: READ: cannot select card.\n");
return -1;
}
}
if (card.new_card == 1) {
DEBUG("sdcard: new card inserted but not acknowledged yet.\n");
return -1;
}
memset(cmdbuf, 0, sizeof(struct sdmmc_command));
if(blk_count > 1) {
DPRINTF(2, ("sdcard: MMC_READ_BLOCK_MULTIPLE\n"));
cmdbuf->c_opcode = MMC_READ_BLOCK_MULTIPLE;
} else {
DPRINTF(2, ("sdcard: MMC_READ_BLOCK_SINGLE\n"));
cmdbuf->c_opcode = MMC_READ_BLOCK_SINGLE;
}
if (card.sdhc_blockmode)
cmdbuf->c_arg = blk_start;
else
cmdbuf->c_arg = blk_start * SDMMC_DEFAULT_BLOCKLEN;
cmdbuf->c_data = data;
cmdbuf->c_datalen = blk_count * SDMMC_DEFAULT_BLOCKLEN;
cmdbuf->c_blklen = SDMMC_DEFAULT_BLOCKLEN;
cmdbuf->c_flags = SCF_RSP_R1 | SCF_CMD_READ;
sdhc_async_command(card.handle, cmdbuf);
if (cmdbuf->c_error) {
DEBUG("sdcard: MMC_READ_BLOCK_%s failed with %d\n", blk_count > 1 ? "MULTIPLE" : "SINGLE", cmdbuf->c_error);
return -1;
}
if(blk_count > 1)
DPRINTF(2, ("sdcard: async MMC_READ_BLOCK_MULTIPLE started\n"));
else
DPRINTF(2, ("sdcard: async MMC_READ_BLOCK_SINGLE started\n"));
return 0;
}
int sdcard_end_read(struct sdmmc_command* cmdbuf)
{
// DEBUG("%s(%u, %u, %p)\n", __FUNCTION__, blk_start, blk_count, data);
if (card.inserted == 0) {
DEBUG("sdcard: READ: no card inserted.\n");
return -1;
}
if (card.selected == 0) {
if (sdcard_select() < 0) {
DEBUG("sdcard: READ: cannot select card.\n");
return -1;
}
}
if (card.new_card == 1) {
DEBUG("sdcard: new card inserted but not acknowledged yet.\n");
return -1;
}
sdhc_async_response(card.handle, cmdbuf);
if (cmdbuf->c_error) {
DEBUG("sdcard: MMC_READ_BLOCK_%s failed with %d\n", cmdbuf->c_opcode == MMC_READ_BLOCK_MULTIPLE ? "MULTIPLE" : "SINGLE", cmdbuf->c_error);
return -1;
}
if(cmdbuf->c_opcode == MMC_READ_BLOCK_MULTIPLE)
DPRINTF(2, ("sdcard: async MMC_READ_BLOCK_MULTIPLE finished\n"));
else
DPRINTF(2, ("sdcard: async MMC_READ_BLOCK_SINGLE finished\n"));
return 0;
}
int sdcard_read(u32 blk_start, u32 blk_count, void *data)
{
struct sdmmc_command cmd;
// DEBUG("%s(%u, %u, %p)\n", __FUNCTION__, blk_start, blk_count, data);
if (card.inserted == 0) {
DEBUG("sdcard: READ: no card inserted.\n");
return -1;
}
if (card.selected == 0) {
if (sdcard_select() < 0) {
DEBUG("sdcard: READ: cannot select card.\n");
return -1;
}
}
if (card.new_card == 1) {
DEBUG("sdcard: new card inserted but not acknowledged yet.\n");
return -1;
}
memset(&cmd, 0, sizeof(cmd));
if(blk_count > 1) {
DPRINTF(2, ("sdcard: MMC_READ_BLOCK_MULTIPLE\n"));
cmd.c_opcode = MMC_READ_BLOCK_MULTIPLE;
} else {
DPRINTF(2, ("sdcard: MMC_READ_BLOCK_SINGLE\n"));
cmd.c_opcode = MMC_READ_BLOCK_SINGLE;
}
if (card.sdhc_blockmode)
cmd.c_arg = blk_start;
else
cmd.c_arg = blk_start * SDMMC_DEFAULT_BLOCKLEN;
cmd.c_data = data;
cmd.c_datalen = blk_count * SDMMC_DEFAULT_BLOCKLEN;
cmd.c_blklen = SDMMC_DEFAULT_BLOCKLEN;
cmd.c_flags = SCF_RSP_R1 | SCF_CMD_READ;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: MMC_READ_BLOCK_%s failed with %d\n", blk_count > 1 ? "MULTIPLE" : "SINGLE", cmd.c_error);
return -1;
}
if(blk_count > 1)
DPRINTF(2, ("sdcard: MMC_READ_BLOCK_MULTIPLE done\n"));
else
DPRINTF(2, ("sdcard: MMC_READ_BLOCK_SINGLE done\n"));
return 0;
}
#ifndef LOADER
int sdcard_start_write(u32 blk_start, u32 blk_count, void *data, struct sdmmc_command* cmdbuf)
{
if (card.inserted == 0) {
DEBUG("sdcard: WRITE: no card inserted.\n");
return -1;
}
if (card.selected == 0) {
if (sdcard_select() < 0) {
DEBUG("sdcard: WRITE: cannot select card.\n");
return -1;
}
}
if (card.new_card == 1) {
DEBUG("sdcard: new card inserted but not acknowledged yet.\n");
return -1;
}
memset(cmdbuf, 0, sizeof(struct sdmmc_command));
if(blk_count > 1) {
DPRINTF(2, ("sdcard: MMC_WRITE_BLOCK_MULTIPLE\n"));
cmdbuf->c_opcode = MMC_WRITE_BLOCK_MULTIPLE;
} else {
DPRINTF(2, ("sdcard: MMC_WRITE_BLOCK_SINGLE\n"));
cmdbuf->c_opcode = MMC_WRITE_BLOCK_SINGLE;
}
if (card.sdhc_blockmode)
cmdbuf->c_arg = blk_start;
else
cmdbuf->c_arg = blk_start * SDMMC_DEFAULT_BLOCKLEN;
cmdbuf->c_data = data;
cmdbuf->c_datalen = blk_count * SDMMC_DEFAULT_BLOCKLEN;
cmdbuf->c_blklen = SDMMC_DEFAULT_BLOCKLEN;
cmdbuf->c_flags = SCF_RSP_R1;
sdhc_async_command(card.handle, cmdbuf);
if (cmdbuf->c_error) {
DEBUG("sdcard: MMC_WRITE_BLOCK_%s failed with %d\n", blk_count > 1 ? "MULTIPLE" : "SINGLE", cmdbuf->c_error);
return -1;
}
if(blk_count > 1)
DPRINTF(2, ("sdcard: async MMC_WRITE_BLOCK_MULTIPLE started\n"));
else
DPRINTF(2, ("sdcard: async MMC_WRITE_BLOCK_SINGLE started\n"));
return 0;
}
int sdcard_end_write(struct sdmmc_command* cmdbuf)
{
if (card.inserted == 0) {
DEBUG("sdcard: WRITE: no card inserted.\n");
return -1;
}
if (card.selected == 0) {
if (sdcard_select() < 0) {
DEBUG("sdcard: WRITE: cannot select card.\n");
return -1;
}
}
if (card.new_card == 1) {
DEBUG("sdcard: new card inserted but not acknowledged yet.\n");
return -1;
}
sdhc_async_response(card.handle, cmdbuf);
if (cmdbuf->c_error) {
DEBUG("sdcard: MMC_WRITE_BLOCK_%s failed with %d\n", cmdbuf->c_opcode == MMC_WRITE_BLOCK_MULTIPLE ? "MULTIPLE" : "SINGLE", cmdbuf->c_error);
return -1;
}
if(cmdbuf->c_opcode == MMC_WRITE_BLOCK_MULTIPLE)
DPRINTF(2, ("sdcard: async MMC_WRITE_BLOCK_MULTIPLE finished\n"));
else
DPRINTF(2, ("sdcard: async MMC_WRITE_BLOCK_SINGLE finished\n"));
return 0;
}
int sdcard_write(u32 blk_start, u32 blk_count, void *data)
{
struct sdmmc_command cmd;
if (card.inserted == 0) {
DEBUG("sdcard: WRITE: no card inserted.\n");
return -1;
}
if (card.selected == 0) {
if (sdcard_select() < 0) {
DEBUG("sdcard: WRITE: cannot select card.\n");
return -1;
}
}
if (card.new_card == 1) {
DEBUG("sdcard: new card inserted but not acknowledged yet.\n");
return -1;
}
memset(&cmd, 0, sizeof(cmd));
if(blk_count > 1) {
DPRINTF(2, ("sdcard: MMC_WRITE_BLOCK_MULTIPLE\n"));
cmd.c_opcode = MMC_WRITE_BLOCK_MULTIPLE;
} else {
DPRINTF(2, ("sdcard: MMC_WRITE_BLOCK_SINGLE\n"));
cmd.c_opcode = MMC_WRITE_BLOCK_SINGLE;
}
if (card.sdhc_blockmode)
cmd.c_arg = blk_start;
else
cmd.c_arg = blk_start * SDMMC_DEFAULT_BLOCKLEN;
cmd.c_data = data;
cmd.c_datalen = blk_count * SDMMC_DEFAULT_BLOCKLEN;
cmd.c_blklen = SDMMC_DEFAULT_BLOCKLEN;
cmd.c_flags = SCF_RSP_R1;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: MMC_WRITE_BLOCK_%s failed with %d\n", blk_count > 1 ? "MULTIPLE" : "SINGLE", cmd.c_error);
return -1;
}
if(blk_count > 1)
DPRINTF(2, ("sdcard: MMC_WRITE_BLOCK_MULTIPLE done\n"));
else
DPRINTF(2, ("sdcard: MMC_WRITE_BLOCK_SINGLE done\n"));
return 0;
}
int sdcard_wait_data(void)
{
struct sdmmc_command cmd;
do
{
DPRINTF(2, ("sdcard: MMC_SEND_STATUS\n"));
memset(&cmd, 0, sizeof(cmd));
cmd.c_opcode = MMC_SEND_STATUS;
cmd.c_arg = ((u32)card.rca)<<16;
cmd.c_flags = SCF_RSP_R1;
sdhc_exec_command(card.handle, &cmd);
if (cmd.c_error) {
DEBUG("sdcard: MMC_SEND_STATUS failed with %d\n", cmd.c_error);
return -1;
}
} while (!ISSET(MMC_R1(cmd.c_resp), MMC_R1_READY_FOR_DATA));
return 0;
}
int sdcard_get_sectors(void)
{
if (card.inserted == 0) {
DEBUG("sdcard: READ: no card inserted.\n");
return -1;
}
if (card.new_card == 1) {
DEBUG("sdcard: new card inserted but not acknowledged yet.\n");
return -1;
}
// sdhc_error(sdhci->reg_base, "num sectors = %u", sdhci->num_sectors);
return card.num_sectors;
}
void sdcard_irq(void)
{
sdhc_intr(&sdcard_host);
}
void sdcard_init(void)
{
struct sdhc_host_params params = {
.attach = &sdcard_attach,
.abort = &sdcard_abort,
.rb = RB_SD0,
.wb = WB_SD0,
};
clear32(LT_GPIO_INTMASK, GP_SDSLOT0_PWR);
set32(LT_GPIO_DIR, GP_SDSLOT0_PWR);
set32(LT_GPIO_ENABLE, GP_SDSLOT0_PWR);
clear32(LT_GPIO_OUT, GP_SDSLOT0_PWR);
udelay(100);
#ifdef CAN_HAZ_IRQ
irq_enable(IRQ_SD0);
#endif
sdhc_host_found(&sdcard_host, &params, 0, SD0_REG_BASE, 1);
}
void sdcard_exit(void)
{
#ifdef CAN_HAZ_IRQ
irq_disable(IRQ_SD0);
#endif
sdhc_shutdown(&sdcard_host);
#ifdef CAN_HAZ_IRQ
irq_disable(IRQ_SD0);
#endif
}
#endif
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